US2358263A - Becokij makimx aot - Google Patents

Description

7 Sept. 12, 1944.. o. J. SUNDSTRAND RECORD MAKING AND ACCOUNTING MACHINE Filed Dec. 30, 1939 2 Sheets-Sheet l INVENTOR OSCAR J. JUNDSTRAND ATTORNEY Id nnnnnnn flnnnnnn nnnnnn '0 p 1944. o. J. SUNDSTRAND 2,353,263

RECORD MAKING AND ACCOUNTING MACHINE Filed Dec. 50, 1939 2 Sheets-Sheet 2 INVENTOR OSCARJSUNDSTRAND ATTO R N EY Patented Sept. 12, 1944 RECORD MAKING AND ACGGUNTING IifisiW-ZIRIE Oscar J. Sundstrand, West Hartford, Conn, aa-

signor to Underwood Elliott Fisher @ompany, New York, N. Y., a corporation of Delaware Application December 3t, 1939, Serial No. 311,741

(Killl?) 4 Claims.

This invention relates to record making and accounting machines. The invention is particularly adapted for application to machines in which the record maln'ng mechanism and the accounting mechanism are driven by power. The invention is illustrated in this application as applied to typewriting and accounting machines of the Elliott Fisher or fiat platen type. The invention how ever is not limited to machines ofthis type but certain features may be applied with advantage to other types of machines.

In the operation of machines of the above class, as is well known to those skilled in the art, it is desirable, in order to prevent two type impressions at the same point on the work sheet and certain other misoperations of the type bar mechanisms, after the operation of a type bar mechanism has been initiated, to lock the other type bar operat ing mechanisms out of operation during the greater part of the cycle of operations.

In accounting machines of the present type having a register and dififerential operating mechanism for the register, one of which is fixed in the direction of movement of the carriage and the other is movable with the carriage, as is well known, it is desirable, in order to avoid misoperaticn and jamming of the mechanisms, after a difierential operating mechanism has been thrown into operation, to prevent a second differential mechanism from being thrown into operation until the completion of the operating cycle.

It is also desirable to lock the type bar operating mechanisms and the difierential actuating mechanisms for the registers out of operation during the release of the carriage by the escapeimproved locking mechanism for locking certain I parts of the machine to secure the above results.

With the above objects in view the invention consists in the novel and improved features hereinafter described and particularly pointed out in the claims, which, with the advantages resulting therefrom, will be readily understood by those skilled in the art.

The invention will be clearly understood from the accompanying drawings illustrating a machine embodying the invention in its preferred form and the following detailed description of the construction therein shown.

In the drawings:

Fig. 1 is a view in vertical section of the machine illustrating particularly the type bar operatlng mechanism and the mechanism for operating the registers,

Fig. 2 is detail perspective view illustrating a portion of the escapement mechanism and the locking mechanism for locking the type bar operating mechanism out of operation,

Fig. 3 is a detail view in rear elevation illustrating the escapement mechanism and a portion of said locking mechanism,

- Fig. 4 is a detail view in side elevation illustrating a portion or" the locking c s and 5 is a detail view in rear elevation illustrating certain parts of the escapement mechanism and the decimal space mechanism.

invention is illustrated in this application as embodied in a typewriting and accounting machine, the typewriting and accounting mecha-' nisms or" which, except as to certain parts of the escapement mechanism and certain cooperating parts for controlling the escapement from the space bar, have substantially the same construction, arrangement and mode of operation as the corresponding mechanisms illustrated and described in applicants pending application Serial No. 281,772, filed June 29, 1939.

In the illustrated construction the machine comprises a platen frame one of the side rails of which is indicated at 2, a substantially fiat platen is mounted for vertical movement in said frame, a line space frame, a portion of which is indicated at 5 mounted for forward and rearward movement on said platen frame and mechanism for imparting a line spacing movement to the line space frame at the end of each return movement of the carriage, all as shown and described in said pending application.

Upon the line space frame is mounted a type carriage or head indicated as a whole at 1 upon which are mounted the usual series of type bars each carrying one or more types for engaging the work sheets supported on the platen. The type bars are arranged to be operated by power driven mechanism in the present machine and this mechanism, in part, is carried by'the carriage. The carriage also carries the usual series of keys forming the keyboard of the machine and controlling the co-action of the type bars with the power driven mechanism. The carriage also carries a master wheel by which the totalizers or registers are driven and mechanism for driving the master wheel difierentiall by power to set up or enter successively the various digits of a number step by step in a register.

The type carriage is mounted for movement forwardly and rearwardly with the line space frame and is also mounted for lateral movement on said frame in a right hand direction to letter space during a'typing operation and for return movement in a left hand direction to restore the carriage to position for starting the typing of a line. The carriage is provided with front and rear wheels or rollers arranged to engage respectively the front and rear rails of the line space frame of whichthe rollers engaging the rear rail 8 are indicated at it. The carriage is acted upon by the usual metallic band it having one end attached to the carriage and connected with the usual spring drum is which tends yieldingly to move the carriage constantly in a right hand direction along the rails of the line space frame as shown in said pending application. The letter spacing movement of the carriage is controlled by the usual escapement mechanism indicated as a whole at if, this escapement mechanism preferably having substantially the same construction, arrangement and mode of operation of the parts as the escapement mecha= nism shown and described in the patent to Foothorap, No. 1,203,519, dated October 31, 1916.

Type action The present machine is provided with a series of type bars it each pivoted at it to a hanger 68 secured to the semi-circular type bar ring 2E9 suspended below the deck 22 of the carriage. The type bars are respectively acted upon by coil springs 26 which operate to retract the bars and tend to retain them in their normal positions in engagement with a semi-circular buffer ring 25.

The tail of each of the type bars is connected by a link 28 with an elbow lever 3t pivoted at 32 upon a hanger 35 depending from the deck 22. Each elbow lever is connected by a link 38 with the forward end of a sub-lever 38 pivoted at an upon a support 52 secured to the upper face of the deck 22. The rear end of the sub-lever 38 is connected by a link or push rod 56 with a horizontally arranged intermediate lever d6 jour= naled on a fulcrum bar. ti extending across the rear of the key carriage. Each of the intermediate levers 636 is acted upon by a coil spring 38 which assists the retracting spring 23 in yieldingly holding the parts of the mechanism in the normal positions shown in Fig. 1.

Power driven type bar actuating mechanism In the present machine, power driven mechanism is provided for swinging the intermediate levers 46 in a downward direction about the fulcrum bar 41 to actuate the type bars. This mechanism comprises a longitudinally movable transmitting link 50 pivotally connected to the intermediate lever 46 by means of a stud 52. The transmitting link is pivoted at 54 to a radius arm or lever 58 which is ,joumaled on a rod 58 extending longitudinally of the type carriage and supported on the cover plate 59. Said mechanism also comprises a longitudinally movable driving link 60, the lower end of which is pivoted at 62 to the radius arm 56. A pawl 64 is pivoted at 66 to the driving link and is provided with two teeth arranged to engage the teeth of a con-7 tinuously rotating toothed or fluted shaft 58 mounted in bearings in the type carriage. The lower end of the driving link is acted upon by a coil spring Ill which tends to swing the link in a clockwise direction about the pivot 62 and to maintainnormally the link substantially in the position shown in Fig. l. with the pawl 66 in engagement with a fixed inclined arresting plate 12 extending across the type carriage, in which position the pawl is disengaged from the toothed shaft. In order to engage the pawl with the shaft, the driving link 60 is swung to the left (Fig. 1) about the pivot 62. The shaft 6 is continuously driven by power through suitable driving connections from a motor 13 as shown and described in said application Serial No. 281,772. Upon the engagement of the pawl with the shaft, the driving link at is driven in a downward direction to actuate the transmitting link 50 and the intermediate lever t6 downwardly.

The driving links are swung to the left to engage the respective pawls carried thereby with the toothed shaft by mechanism actuated by the keys of the keyboard. This mechanism comprises a drag link it connected at its left hand end (Fig. 1) with an upwardly extending arm of the key lever it and having a shoulder l8 adjacent its right hand and arranged to engage a pin dd mounted on the driving link fill. The left hand and of the drag link is connected with the upwardly extending arm of the key lever 38 by means of a. stud 82 mounted on the link and engaging in a slot 86 in said arm of the key lever and a coil spring 86 Whichnormally holds the stud 32 seated in the left hand end of the slot. Each of the key levers it is pivoted on a shaft 88 common to the keys of all the banks and is provided with a forwardly extending arm on which is fixed a key 9b. The end of the upwardly extending arm of each of the key levers, extends through a guide slot 92 formed in a guide plate 94 secured to the upper portion of the frame of the type carriage and the movement of the key lever is limited by the engagement of said arm with the ends of the guide slot. Each of the key levers is acted upon by a coil spring Qt which normally maintains the upwardly extend. ing arm thereof in engagement with the rear end of the guide slot.

With this construction, upon the depression of the key 90 of the key lever, the upwardly extending arm thereof will be swung forwardly 0r tothe left (Fig. 1) to engage the pawl at with the toothed shaft 68.

When the key is depressed to actuate the key lever to swing the driving link to the left to engage the pawl with the toothed shaft, the movement of the driving link is limited by the engagement of the pawl with said shaft. As the driving link is carried downwardly by the rotary movement of the shaft, the link is swung to the left, during the latter part of its movement by the engagement of the pawl contacting tooth of the shaft with the upper tooth of the pawl, the movement of said tooth of the shaft then having a substantial component toward the left (Fig. 1). In order to limit this swinging movement of the driving link and cause the disengagement of the pawl from the tooth of the shaft at the desired time in the actuation of the type bar mechanism, a series of stop plates 98 are adjustably mounted on the guide plate 94 and are arranged to be engaged respectively, by the upper ends of the driving links to limit the swinging movement thereof.

. The free rear ends of the drag links 14 project through guide slots I00 formed in the upper The trailing ends of the driving links travel up and down and move forwardly and rearwardly in guide slots I02 formed in a transverse bar I04 supported on the frame 01 the type carriage.

Interlock for driving links An interlock mechanism'is provided for preventing more than one of the driving links from being swung forwardly into operating position at the same time. This mechanism comprises a series of interlocking balls I06 confined in a channel I08 formed in the bar I04 as shown and described in said application Serial No. 281,772.

Escapement mechanism The present machine, as stated above, is provided with an escapement mechanism for controlling the letter spacing movement of the type carriage having substantially the same construc tion, arrangement and mode of operation of parts as the corresponding mechanism illustrated and described in the patent to Foothorap, No. 1,203,519. This escapement mechanism comprises a carriage feed rack IIO secured to the rear rail 8 of the line space frame and a feed pinion H2 journaled on a shaft II 4 having its ends engaged in suitable supports on the frame of the type carriage. To this pinion is secured an escapement wheel IIB controlled by escapement dogs H8 and arranged to engage said wheel and operated from the universal bar by means of the usual draw wire i22. The holding dog III is pivoted at 323 on the bracket I suspended from the deck 22, the spacing dog I20 is pivoted at I2! on said bracket and said dogs are connected by a link I20 and by an operating spring I3I as fully shown and described in said patent. The draw wire I22 is connected at its upper end with an arm I24 (see Fig. l) secured to a rock shaft I26 arranged transversely of the type carriage. Arms I28 are secured to this rock shaft from which is suspended a universal bar I30. This bar extends beneath the several intermediate levers 46 and is arranged to be engaged by an abutment screw I32 mounted in each of said levers. The depression of the universal bar I by the downward movement of any one of the intermediate levers 46 swings the rock shaft I26 in a counterclockwise direction (Fig. 1) thereby swinging upwardly the arm I24 to swing the holding dog H8 out of operative position and to swing the spacing dog I20 into operative position. The rock shaft is acted upon by a return spring I34 connected with an arm 136 fixed to the shaft which acts to turn the rock shaft back in a clockwise direction upon the release of the universal bar I30 by the intermediate lever 46. This movement of the rock shaft swings the arm I24 back downwardly and releases the draw wire I22 and the spacing dog I20 is swung out of operative position and the holding dog H8 is swung back into operative position by the spring I3I. An arm I30 on the spacing dog I20 engages a pin I40 on the pivotally and longitudinally movable actuator I42 connected by a link I44 with the bracket, which supports the escapement mechanism. The actuator I42 is connected with the lower end of a draw wire I46. The draw wire I46 may be operated manually from the space bar by mechanism having substantially the same construction and mode of operation as the mechanism shown and described in said Patent No. 1,203,519 or said draw wire may be operated by power through suitable connections with the fluted shaft 6! controlled from the space bar.

Column totalizer mechanism The present machine has provision for supporting a series of computing registers or totalizers in positions to be actuated by mechanism controlled by the numeral keys as shown in applicants Patent No. 1,904,127. The machine is provided with a register bar I48 supported at its ends upon uprights I50 attached to the line space frame and upon this bar may be detachably clamped one or more column registers such as the register indicated at I52 in Fig. 1. This register is provided with the usual series of number wheels I54, value wheels I56 and idler gears I51 connecting the number and value wheels (see Fig. l), and with the usual transfer mechanism (not shown). The series of number wheels I54 includes one for each denomination which can be set up in the totalizer, these wheels being arranged side by side and in axial alignment.

Driving mechanism for totalizers The type carriage is provided with power driven mechanism for actuating the totalizing mechanism of the column totalizers or registers to up numbers in the totalizer Wheels. This mechanism is controlled by the numeral keys of the typewriter keyboard. The said mechanism comprises a master wheel I58 secured to a shaft We carried by the type carriage and arranged to mesh with the teeth of one of the number wheels I54 in each denominational position of the type carriage with relation to a column totalizcr, the

. master wheel being moved step by step from one of the number wheels I 54 to the succeeding wheel by the movement of the carriage under control of the escapement mechanism, after each accumulating operation.

The master wheel I58 is located at about the middle of the type carriage at the rear thereof and extends rearwardly from the carriage into position to engage the gears I64 of the totalizer mechanisms of the column registers. The master wheel I58 is driven through suitable gearing indicated at I62 from a main difierential actuator shaft I64 extending across the type carriage and journalled in suitable bearings (not shown) supported on the frame of said carriage. This gearing 162 includes a reversing mechanism by which the master wheel I 58 may be driven in opposite directions for addition and subtraction.

Power driven diflereniial actuator mechanism The shaft I64 is rotated difierentially to impart differential movements to the master wheel I58 and to the totalizer mechanismof the register to enter the desired numbers in the register by mechanisms selectively controlled from the several numeral keys of the type bar actuating and controlling mechanisms. The mechanisms for differentially rotating the shaft I64 to enter the numbers from 3 to 9 inclusive in the registers only are shown and described herein to illustrate the mode of operation of said mechanisms. The corresponding mechanisms for differentially rotating the shaft to enter the numbers 1 and 2 preferably have substantially the same construction and mode 01' operation as the corresponding mechanisms shown and described in applicants application Serial No. 281,772 and it is deemed unnecessary to disclose these mechanisms in this Each of these mechanisms comprises a longitudinally movable rack bar I68, pivotally suspended at I63 on an arm no which is pivoted on a shaft H2 extending across the type carriage and sup ported in the end plates or brackets ild. These arms are acted upon by a bail I it also pivoted on said shaft and normally held yieldingly in depressed position by a spring I15, the bail engaging the upper sides of said arms. The downward movement of the ball is adiustably limited by a suitable stop device such as shown in said application Serial N 0. 281,772,

Each of the racks IE6 is provided, on the rear side thereof with a series of downwardly inclined teeth arranged to engage the teeth of a gear H8, fixed to the shaft 86 8, the teeth of the gear being inclined in a clockwise direction. Each of the rack bars is also provided on its forward side with a series of downwardly inclined teeth arranged to engage the teeth of a continuously rotating power driven toothed or fluted shaft I80 extending across the type carriage and journaled in bearings carried by the end plates I'M,

the shaft being continuously driven through suitable driving connections from the motor it.

Each of the rack bars is normally held in a position intermediate between the shaft 58% and the corresponding gear H8 as shown in Fig. 1, in which it is disengaged from both shaft and gear. The mechanism for holding each rack in. this position comprises a pin 982 secured in the bar adjacent the lower end thereof and engaging in a recess I 836 in a retaining lever 68%. This lever is acted upon by a coil spring W8 which tends to swing the lever upwardly and yieldingly holds the pin engaged in the recess with the pin in contact or substantially in contact with the lower edge of a fixed cam plate are.

In order to throw into operation the differenaces,

arrangement and mode of operation of parts.

tial mechanism for entering a given digit in the totalizer of aregister, the rack bar I corresponding to this digit is swung forwardly to engage the teeth on the forward side of the rack bar with the teeth of the continuously rotating shaft I80. By the engagement of the rack bar with the shaft, the rack bar is moved longitudinally upward and the corresponding arm iii! and the bail H6 are swung upwardly by the movement of the rack bar against the action of the bail actuating spring I15. 'When the rack bar has been moved upward the distance required for the subsequent action thereof, it is swung rearwardly to disengage the teeth on the forward side thereof from the shaft Hi), this movement being limited to prevent the engagement of the teeth on the rear side thereof at this time with the gear I18. The rack bar is then moved longitudinally downward by the action of the bail I15 under the influence of the spring I15 to a constant position, which is substantially the same for all of-the several bars. At a predetermined point in the erated from the several corresponding interme diate levers 46 connected with the numeral type bars as these levers are moved downward respec-- tively to actuate the type bars corresponding to the numeral keys. These mechanisms, however. are rendered operative only when the master wheel I58 is in position to engage and actuate one of the wheels I 5% of the totalizer mechanism of a register. The position of the type carriage when the master wheel is in position to operate the totalizer mechanism of a register, will be, in certain instances, hereinafter referred to as the position of the carriage when in the zone of a register.

The mechanism for swinging each of the rack bars forwardly comprises a lever I92 (one for each rack bar) pivotaliy suspended at ted upon an arm E96 secured to a rock shaft I98 extending across the type carriage and supported in bearings in the end plates thereof. The lever I92 projects at its lower end through a guide slot 299 in the cover plate 5% and is formed on its left hand side with a projection 2% arranged to engage the pin I82. The rock shaft ist is acted upon by a coil spring attached to an arm on said shaft which normally maintains the arm I96 and the lever I92 in lowered position with the projection 202 below the pin I82. The lever H2 is connected by a link fli t with a plate 206 fixed to the upper end of an arm 208 secured to one of the intermediate levers 56.

The levers N2, when the carriage is not in the zone of a register, occupy their lowered positions as shown in Fig. 1. When the manually adjustable setting lever for controlling the condition of the machine is adjusted in compute" position and the carriage is in the zone of a register, the levers I82 assume elevated positions, in which the projections 202 are in position to engage the pins i8? when the levers are swung forwardly as shown and described in said application Ser. No. 281,772.

With this construction, when the lever 65 of a numeral type bar mechanism is swung downwardly to actuate the type bar, the corresponding lever I92 is swung forwardly through its connection with the arm 298. If the lever W2 is, at this time, in lowered position, the projection 2B2 thereon will not engage the pin M2 and this movement of the lever 592 will not afiect the position of the rack bar i56. However, if the lever i92-is then in elevated position, the projection 202 on said lever will engage the pin I82 as said lever is swung forwardly and the rack bar will be swung forwardly therewith to engage the same with the continuously rotating shaft I80.

When the rack bar is engaged with the shaft M0, the bar is moved upwardly by the action of the shaft for the distance required for its subsequent action and is then swung rearwardly to disengage the same from the shaft by means of a pin 2N] projecting downwardly from a supporting plate 2 I 2 secured to the frame of the carriage, which pin engages a laterally projecting arm 2 M on the rack bar.

During the lateral swinging movement of the rack bar forwardly to engage the'same with the shaft I80, the pin I82 travels along the lower edge of the fixed cam plate 2I6. During the upward movement of the rack bar, the pin travels along the forward edge of the cam plate which is shaped as shown in Fig. 1 and tends to guide the lower end of the rack bar and prevent it from disengaging the continuously rotating shaft. As therack bar approaches the upper end of its movement, the pin 882 leaves the upper end of,

the cam plate. As the rack bar is swung rearwardly by the action of the pin no, the pin I82 actuator racks.

engages the forward side of a fixed guide plate 2I8. This plate limits the rearward movement of the rack bar to prevent, at that time in the cycle, the engagement of the rack with the gear I18, and forms a guide for the lower end thereof during the first part of the downward movement of the bar.

During the first part of the downward movement of the rack bar, under the action of the bail I16, the pin I82 moves along the forward side of the guide plate 2I8 until it reaches the channel 220 between the same and the cam plate. As the pin reaches the channel, which occurs at a predetermined point in the downward movement of the rack bar, said pin is directed into said channel by the cam plate 2I6. During the passage of the pin I82 through the channel, the

rack bar is swung rearwardly by the action of the cam plate 2I6, thereby engaging the rack bar with the gear I18 at a predetermined point in the downward movement of the rack bar.

During the continued downward movement of the bar under the action of the bail I76, the gear I18 is actuated to accumulate the number, corresponding to the numeral key depressed, in the number wheel of the totalizer mechanism of the column register. After the rack bar I66 is engaged with the gear I18, and the rack bar continues its downward movement, the pin I82 engages the rear edge of the cam plate 2I6 which forms. a guide for the rack and at substantially the end of the downward movement of the rack the pin engages the projecting end of the lever I86. By the engagement of the pin with the lever i88, the lever is swung downwardly slightly and the pin is deflected forwardly into the recess in the lever by the contacting edge of the lever which is inclined to a slight degree to the direction of downward movement of the pin, thereby again locating the rack bar in its intermediate position.

The cam plate 216 and the guide plate BIB differ in size and contour for each of the several The position of the channel 220 or the position of the upper inclined edge of the cam plate 2I6 determines the point in the downward movement of the rack bar at which the rack bar is engaged with the gear I18 to actuate the totalizer mechanism and this determines the extent of actuation of said mechanism and the number which is entered therein,

The present machine is provided with the usual register engaging cam lever which conditions certain parts of the machine for the actuation of the totalizer mechanism of the column register when the machine is in the zone of a register. The machine is further provided with a manually settable element for determining the actuation or non-actuation of the totalizer mechanism of the register when the carriage is in the zone of a register. By this cam lever and said manually settable element, the vertical positions of the levers I92 are controlled when in the zone of a register. When the carriage is out of the zone of a register and when the manually settable element is set for writing and the carriage is in the zone of a register, the levers I92 are all located in lowered positions. When the manually settable element is set for computing and the carriage is in the zone of a. register, the levers I82 are all located in elevated positions. The mechanism for controlling the positions of the levers I92 is fully shown and described in applicants pending application Serial No. 281,772 and it is not considered necessary for an understanding or the present invention to disclose this mechanism in the present application.

The machine is provided with an escapement release lever 22I pivoted at 223 upon a hanger suspended from the deck 22 of the carriage and its right hand end, Fig. 3, is turned or bent laterally so as to engage beneath an arm on the holding dog II8 of the escapement mechanism. This lever is actuated to release the holding dog from the escapement wheel H8 and thereby permit the advance of the carriage under the action of the spring tensioned tape II by the depression of the column tabulator key or by the depression of any one of the decimal tabulator keys through mechanism such as shown and described in applicants application Serial No. 281,7 72-.

The machine is provided with a decimal space mechanism constructed and operating as shown and described in said application Serial No. 281,772. Said mechanism comprises a lever 225 pivoted at 221 on a hanger suspended from the deck 22 and provided with a lateral projection which engages beneath an arm on the holding dog H8. The lever is acted upon by a spring 229 which tends to swing the acting end downwardly, the movement of the lever under the action of the spring being limited by the engagement of an arm on the lever with the under side of the deck. The lever is connected with the lower end of a draw wire 23I, the upper end of which is connected with an actuating arm of the decimal space mechanism. Upon the actuation of said arm by the escapement movement of the carriage into decimal space position, the wire MI is lifted and the lever 225 is swung upward to maintain the holding dog out of engagement with the escapement wheel lit until the carriage has executed a two space escapement movement. The actuating arm then allows the wire to move downwardly, the lever 225 is restored to its normal position by the spring 229, and the holding dog I I8 is restored to its normal position at the end of the decimal space movement.

All of the several mechanisms of the machine above described have substantially the same construction, arrangement and mode of operation as the corresponding mechanisms illustrated and described in said application Serial No. 281,772, except for the mechanism for operating the escapement under control of the space bar.

The escapement release lever is also arranged to be operated to release the escapement from the release key lever through connections having substantially the construction illustrated and described in the patent to Foothorap No. 1,280,697, dated October 8, 1918.

Looking means for type bar actuating mechanism The machine is provided with means for locking the type bar actuating mechanisms out of operation under various conditions to prevent misoperations of the machine. This locking mechanism comprises a locking bail 222 consisting of a plate extending across the carriage and arranged to engage the upper ends of the driving links 60. This bail is mounted upon a bar 224 having pintles 225a at its ends respectively engaging in hearings in the end plates I14 of the carriage to support pivotally the bail. The ball is normally held in its upper or unlocking position as shown in Fig. 1 in which it is not engaged by the upper ends of the driving links 60, when these links are swung forwardly by the depression of the keys to throw the type bar operating mechanisms into operation, the upward movement of the bail being limited by its engagement with a stop bar 226 secured to the frame of the carriage. The ball is acted upon by a coil spring 228 connected with an arm 230 secured to the bail, which tends to swing the bail downwardly. into locking position as shown in Fig. 4, in which its rear edge is located to be engaged by the upper ends of the driving links 66 to prevent these links from being swung forwardly into type bar actuating positions.

Mechanism for controlling locking bail from escapement mechanism Mechanism is provided for controlling the locking bail to cause the same to swing downwardly into locking position upon swinging the holding dog H 6 out of engagement with the escapement wheel H6.

The position of the locking ball is controlled by a control lever 232 pivoted on a headed stud 234 secured in one of the side plates H4, a washer 236 being interposed between the head of the stud and the lever. The control lever 232 is provided with an arm 238 arranged to engage the under side oi the locking bail 222 to control the downward movement thereof and with an arm 240 arranged to engage the bar I64 to limit the movement of the lever in a counter-clockwise direction.

In order to control the position of the lever 232, said lever carries a roll 24i which is arranged to be engaged by a rearwardly extending projection 242 formed at the upper end of a vertically movable control bar 243. The upper end of the bar is supported and guided by the stud 234 which engages in a slot 244 in the bar. The

- bar moves through a slot 245 in the cover plate and is supported at its lower end by a pin 246 fixed to an extension 246 secured to an arm 26!! of a three-armed lever 262 pivoted on the stud 254, the pin 246 engaging loosely in an opening in the control bar. The pivot stud 254 is supported on a bracket 266 attached by a screw 256 to the deck 22 and having an arm 26!! secured by a screw 262 to a part 263 of the frame, a spacing block 264 being interposed between said am and the frame.

Another -arm 266 of the three-armed lever extends downwardly through a slot 268 in the deck and is provided, at its end, with a laterally extending contact projection 216 arranged to engage the outer iace of the downwardly extending arm of the holding pawl 8 which engages the escapement wheel H6. The three-armed lever is acted upon by a coiled spring 212 connecting the third arm 274 of said lever with an arm 216 on the bracket (56. This spring tends to swing the lever in a clockwise direction, Fig. 3, and maintains the pawl contacting end of the arm 266 constantly in engagement with the pawl 8.

With the above construction, when the holding dog I I8 is in acting position. with the acting end thereof in engagement with one of the teeth of the escapement wheel N6, the three-armed lever is heldby a spring 212 in position to hold the control bar 243 depressed as shown in Figs. 1 and 2. With the control bar in depressed position, the control lever 232 is held in the angular position shown in these figures by the engagement of the projection 282 on said bar with the roll 2% on the lever and the locking bail 222 is held in unlocking position by the engagement of the arm 236 on the control lever with the under side or the bail. During the first part of the operation of a type bar mechanism, the universal bar ISO is depressed by the action of the intermediate lever 46 and the draw wire I22 is lifted by the movement of the universal bar thereby swinging the holding dog H8 into the position shown in Fig. 3 in which the acting end of the dog is disengaged from the escapement wheel and swinging the spacing dog are into the position shown in said figure in which the acting end of the dog is located to engage a tooth of the wheel. This shift in the positions of the escapement dogs allows the escape ment wheel to rotat slightly and the carriage to execute the first step in its escapement movement.

The movement of the holding dog 8 from the position shown in Fig. 2 to the position shown in Fig. 3 swings the three-armed lever 252 in a counter-clockwise direction, Figs. 2 and 3, thereby lifting the control bar 243 and allowing the control lever 232 to swing in a counter-clockwise direction. The release or the control lever by the control bar allows the spring 226 of the locking bail to swing the bail into locking position as shown in Fig. 4 thereby carrying the control lever 232 into the position shown in said figure in which the movement of the lever and the movement of the bail under the action of the spring 226 is limited by the engagement of the arm 246 on the control lever with the bar I64.

During the latter part of the action of the type bar mechanism, the universal bar is released by the upward movement of the intermediate lever 46 and the parts are restored to normal positions by the restoring spring I34. The spring I 3| then swings the spacing dog I 20 in a direction to carry its acting end out of engagement with the tooth of the escapement wheel 6 and tends to swing the holding dog H8 in a direction to carry the acting end thereof into position to engage a tooth of said wheel, said end of the dog then resting upon the outer end of a tooth of the wheel. The movement of the spacing dog allow the wheel to rotate under the action of the carriage actuating spring and as the carriage approaches the end of the second step in its escapement movement, the dog is swung into the position shown in Fig. 2 and engages a tooth on the wheel to limit said movement. The movement oi the dog into this position allows the three-armed lever to be swung back into the position shown in Fig. 2 by the action or the spring 212 and this movement of the lever depresses the control bar 243. This movement of th bar, through the engagement of the projection 242 with the roll 24!, swings the control lever 232 back into the position shown in Figs. 1 and 2, thereby swinging the bail 222 back into unlocking position through the engagement of the arm 236 on the control lever with the bail.

In this manner the bail 222 is caused to swing down into locking position upon the actuation of the escapement dogs to initiate the first step in the escapement movement and said locking ball is held in locking position during the greater part of the second step in said escapement movement, the bail being moved into unlocking position Just before the second step in said movement is completed.

The actuation of the draw wire I46 produced by the operation of the space bar or by power operated mechanism controlled from th space bar will cause the actuation of the holding and pacing dogs of the escapement mechanism in a as'saaos manner similar to that caused by the operation of the type bar mechanism and the locking ball will be caused to swing down into locking position upon the movement or said dogs into positions to initiate the first step in the escapement movement and will be restored to unlocking position as said dogs are restored to normal position toward the end 01' the second step in the escapement movement in substantially the same manner as in the letter spacing movement produced by the action of the type bar mechanism.

Upon the actuation of any one of the decimal tabulator key levers, the column tabulator key lever or the release key lever, the carriage release lever 2 is actuated to swing the holding dog I I! about its pivot I23 in a direction to release the acting end or the dog from the escapement wheel H6 thereby allowing the carriage to advance under the action of its .actuating spring. This movement of the holding dog does not efiect the position of the spacing dog I20 because of v the lost motion connection between the link I29 and the spacing dog which is maintained in inactive position as shown in Fig. 2. The movement of the holding dog to release the escapement wheel actuates the three-armed lever 252, control bar 243 and the control lever 232 to allow the locking bail 222 to swing downwardly into locking position and said bail is maintained in locking position as long as the release lever is held in released position by the continued depression of the key of one of said key levers. Upon the release of the key and the restoration of the key lever and the release lever Hi to normal positions, the holding dog is swung back into engagement with the escapement wheel H 5 and is finally restored to the position shown in Fig. 2 by the action of the spring l3l to arrest the rotation of the wheel. This movement of the holding dog allows the parts of the mechanism between said dog and the locking bail to be restored to the positions shown in Fig. 2 by the action of the spring 212 thereby moving the locking bail back into unlocking position as shown in said figure.

When a type bar actuating mechanism has been thrown into operation, during the greater part of the operation of said mechanism, the actuating mechanisms for the other type bars are locked out of operation by the interlocking balls MB. This interlock is effective only until the drive link 60 approaches the end of its upward or return movement. This may occur before the second step in the escapement movement of the carriage is initiated or the carriage may then be at the beginning of this second step in its escapement movement. Through the action of the looking bail and the mechanism for controlling the bail from the holding dog of the escapement, the

said other type bar operating mechanisms are effectively locked out of operation by the bail in each operating cycle of the type bar and escapement mechanisms, from the beginning of the first step in the escapement movement of the carriage until toward the end of the second step in said escapement movement. This prevents a second type bar operation until one type bar and escapement operating cycle is substantially completed.

Since the difl'erential operating mechanisms for the register are rendered operative by the action of the type bar operating mechanisms, the locking of other type bar operating mechanisms out or action, when one of said mechanisms has been thrown into operation, until toward the end actuating mechanisms out or operation will be maintained in locking position during the decimal space movement of the carriage by the holding of the holding dog H8 out of position to engage the escapement wheel. Thus the locking bail will be held in locking position during the greater part of the two space escapement movement when the decimal space mechanism goes into operation.

It is to be understood that, except as defined in the claims, the invention is not limited to the particular construction and arrangement of parts of the illustrated embodiment of the invention but that the invention may be embodied in other forms within the scope of the claims.

Having explained the nature and object of the invention and having specifically described a construction embodying the invention in its preferred form, what is claimed is:

1. A record making machine comprising a carriage movable across the machine in one direction to letter space and in the opposite direction to return the same, a series of type bars, a continuously rotating driving member, type bar actuating mechanisms each including a driving thrust link, a device carried by said link for engaging the driving member to actuate the type bar mechanism, a pivoted locking bail extending across the machine and arranged to be engaged by said driving thrust links to lock the same from movement into positions to engage the devices respectively carried thereby with the driver, an escapement mechanism for controlling the movement of the carriage and means controlled by the escapement mechanism for causing the bail to move into locking position when the escapement mechanism is operated to release the carriage.

2. A machine of the class described comprising a transversely movable carriage, power means, a driver constantly driven by said means, a, series of mechanisms arranged to be driven by said driver and normally disconnected from said driver and each including a bar carrying a device for engaging said driver and movable longitudinally under the action of said driver and movable laterally to carry said device into and out of engagement with said driver, locking means for locking said bars from lateral movement sufiicient to carry said devices into engagement with said driver, an escapement for controlling the movement of the carriage and means controlled by the escapement for causing said locking means to move into looking position when the escapement is operated to release the carriage.

3. In a machine of the class described comprising a carriage movable in opposite directions\ nection with the power driver and a series of selectively operable control devices for moving said mechanisms respectively into connection with 8 aaoaaes said driver; a locking bail extending transversely of the machine adiacent said power driven mechanisms and arranged to be engagedby' said mechanisms to lock the same out of connectionwith the power driver, an escapement for controlling the movement or the carriage including a toothed escapement wheel connected with the carriage, alternately acting pawls for engaging the wheel to control the rotation of the wheel, each of which pawls is mounted for movement to carry the acting end of the pawl toward and'i'rom the axis of the wheel into and out of position to engage the teeth of the wheel, means operated by said power driven mechanisms for actuating the pawls alternately to engage and release the teeth of the wheel and means operated by one of said pawls as the pawl i moved to carry the acting end thereof out of engagement with the wheel to cause the'ba'il to move into locking position.

4. In a record making machine comprising a carriage movable transversely of the machine, a series of type bars, power means, a series 01' power driven type bar actuating mechanisms exten across the machine and normally disconnected from the power means. each of said mechanisms being movable into and out of connection with the power mean and a series of selectively operable control devices for moving said mechanisms 'respectively into connection with the power means: a locking bail extending transversely of the machine adjacent said series of type bar actuating mechanism and arranged to be engaged by said mechanisms to lock the same out of connection withthe power means, an escapement mechanism Iior controlling the movement of the carriage including a toothed wheel connected with the carriage, alternately acting pawl each pivoted on an axis substantially parallel with thev axis of the wheel to swing the acting end of the pawl into and out or position to eng e the teeth of the wheel to control the rotation of the wheel. means operated by the type bar actuating mechanisms for swinging the pawls, and means operated by one or said pawls as the pawl is swung to disengage the acting end thereof from the wheel to cause the bail to move into locking position,

oscsn J. SUNDSI'RAND.

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