US1767875A - Typewriting machine - Google Patents

Description

June 24, 1930. G. G. GOING TYPEWRITING MACHINE Filed Nov. 11, 1927 2 Sheets-Sheet l INVENTOR 2km Jim/k ATTORNEY June 24, 1930 G. G. some TYPEWRITING MACHINE Filed Nov. 11, 1927 2 Sheets-Sheet 2 WITNESSES INVENTOR 5; Q K ATTORNEY Patented June 24, 1930 UNITED STATES PATENT OFFICE GEORGE G. GOING, OF MIDDLETOWN, CONNECTICUT, ASSIGNOR TO REMINGTON TYPE- WRITER COMPANY, OF ILION, NEW YORK, A. CORPORATION OF NEW YORK TYPEWRITING MACHINE Application filed November '11 1927. Serial No. 232,582.

My invention relates to type actuating mechanism and particularly to type bar actuating mechanism for typewriting machines and other machines employing type" bars for printing purposes. The general object of the invention is to provide new and improved type actuating mechanism and more specifically to provide type bar or carrier actuating mechanism which is substantially noiseless in operation and is so designed as to be readily adapted to small type writing machines of the style usual denominated as portable typewriters, although the principles of the invention are readily applicable to machines of larger size.

To the above and other ends which will hereinafter appear'my invention consists in the features of construction, combinations of devices and arrangements of parts hereinafter described and particularly pointed out in the appended claims. Some of the said claims are intended to be generic to the construction shown herein and to other constructions constituting the subjects-matter of applications to be hereafter filed.

One form of the invention is shown in the accompanying drawings wherein Fig. 1 is a front-to-rear fragmentary, vertical, sectional view taken about centrally of a typewriting machine embodying my invention, illustrating one of the middle or centrally disposed type actions and one of the end or outside actions of the system or set.

Fig. 2 is a fragmentary front elevation of the machine, parts being shown in section and parts broken away for the sake of clearness, the direction of view being indicated by the arrows in Fig. 1.

Fig. 3 is a fragmentary perspective view showing the manner of supporting the guide for the controlling members of the several type actions.

Fig. 4: isa fragmentary perspective-view showing several of the key levers and sublevers and a guide member therefor.

In carrying out my invention in the pres ent instance I have shown it applied to a small typewriting machine of the so-called portable style and it will be found particuis provided with two types, a

larly adapted to this compressed or compact 4 type of machine. The type bars may be adapted to swing on an arc of substantially 90 degrees but if it be found in practice that it is desirable to spread the types near the ends of the set so as to afford additional clearance, this may be effected in different ways, as by skewing several of the end typebars or dropping them slightly so that they will swing through an arc of between 90 and 100 degrees. For example, as herein shown, the end type bars of the system are dropped back in the basket so that they will swing through 99 degrees, the amount of swing gradually decreasing from the ends to the middle of the system where the bars swing through substantially 90 degrees.

It is, of course, tobe understood that the principles of my invention are not limited in their application to machines of any particular size, although the drawings illustrate a small size or portable machine, or so much thereof as is needed fully to disclose and explain the invention, the present embodiment of which will now be described in detail.

Referring to the drawings, which show the parts substantially full size the type bars 1 are pivoted in an arc of a circle-forward of and below the platen, each having a fulcrum which may be common to all of them such as an arcuate wire 2 which is suitably mounted on a type bar support or segment 3 of any desired construction that is found. suitable for the purpose. Preferably the type bars are disposed in guide slots 4 cut or otherwise suitably formed radially in the lower end-portion of the segment. Said segment may be arranged in an inclined position as shown in Fig. 1, such inclination being upward and rearward towards the platen 5, which is diagrammatically illustrated and may be mounted on a suitable carriage adapted to travel back and forth transverse 1y of the machine in a usual or any suitable way. Each type bar is provided at its free end with a type block 6 which preferably lower case e 8. Normally ective to print type 7 and an upper case ty the lower case types are e but the upper case types may be rendered operative by shifting either the platen relatively to the type bars or the type bars relatively to the platen. Bothv of these expedients are .of course common. Normally the free end portions of the type bars are supported on a suitable rest 9, and thus supported the set of type bars are inclined in a direction forward and upward from their pivots, and are so related to the printing point which is on the upper front quarter of the platen that when actuated to print, the type bars will swing upward and rearward to coact with the platen. As is well understood, the type bars at and near the middle of the system are substantially straight throughout their length while the outer type bars are bent to varying extents near their type ends in order to bring the types in proper relationship with the printing point on the platen. The bend in the right-hand end type bar is illustrated in Fig. 1.

The actuating devices for the type bars comprise a set of keys and suitable actuating connections between the keys and the type bars. In the resent instance, I have shown such connectlons as comprising links 10, one for each type bar, each link being connected at its forward end at 11 to the associate type bar, the rear end of the link being connected at 12 to the upper end portion of a sub-lever 13. Each sub-lever is pivotally connected at 14to an associate key lever 15, and between its ends is provided with a suitable curved bearing face or nose 16 at the under side of said sub-lever. The bearing portion of the sub-lever rests or rocks on and slidably engages with a transverse support or bar 17 extending from side to side of the machine substantially below the sub-levers and the key levers, said support being suitably mounted on the frame of the machine. The bearing bar 17 is provided with an upward angular extension 17 a at its front side and at its rearward side with a downwardly extending stiffening rib 17 The upward vertical extension '17 is formed with vertically disposed kerfs or guide slots 18 adapted to accommodate and guide the key levers 15 and the sub-levers I 13. As a matter of convenience and to reduce friction and interference it has been found in practice that it is desirable to arrange the key levers and the sub-levers in relation to the slots 18 in the manner illustrated in Figs. 2 and 4. By this arrangement the two outermost key levers 15 are alone in their guide slots, the associate outermost sub-lever in each case being offset inward towards each other, as indicated at 18, so as to enter the second slots 18. Each second slot also serves as a guide for the second key lever 15 which is disposed in the slot at the right of the offset sub-lever. Continuing inward towards the middle of the system, the sub-levers are off-set at 13 as described so that each is associated in one of the guide slots witlf a key lever of another type action, the sub-lever alwaysbeing outside the key lever. The reason for this arsame slots, thereby minimizing the friction.-

The described arrangement is continued until the middle of the system is approached. With the two middle sub-levers it has been found that the harmful friction is slight, the reactions being substantially parallel, so that these sub-levers are not offset and are arranged in the guide slots with their own key levers. In the case, however, of the next two key levers, that is, the outermost two 'of the four middle key levers, their guide slots 18 not only receive their associate sub-levers but also the sub-levers offset inward from the outer key levers next adjacent. In other words, the guide slots immediately outside the two middle guide slots each receive and guide three members, a key lever and two sub-levers, the key lever being disposed between the sub-levers. This described arrangement of key levers and sub-levers in their guide slots will, it is thought, be plain from a consideration of Figs. 2 and 4 in connection withthe description. Although as a matter of practice the described arrangement has been found desirable it will of course be understood that the invention is not restricted to any particular arrangement of key-levers and sub-levers in relation to the guiding device or member.

During printing operations the sub-levers are adapted through their bearing faces or engaging parts 16 to ride or slide over the support 17, the construction affording a lost-motion or yielding connection between each key and key lever and their connected type bar. The key levers 15 arearranged in substantial parallelism, extending fore and aft of the machine. At their rear ends, the key levers are provided with round openings or holes as indicated at 19, said holes receiving a fulcrum rod 20 having flattened opposite sides as shown to enable it when half turned relatively to the key levers to pass through cut-outs or slots 21 in the key levers, whereby a detachable mounting between the key levers and the fulcrum rod is effected. Said fulcrum rod is suitably supported at its ends, as on ears 22, depending from a frame bar 23. The key levers 15 extend forward and may be guided near their front ends in a stationary slotted plate or comb 24. The forward end portions of the key levers terminate in upward extensions or stems 15 tops of the stems 15 are key caps or ke s 25. The key levers are of varying lengt s and their stems or upright ortions are of varying heights whereby the eys 25 are disposed in banks or rows at different elevations as is well understood, there being four banks in the present instance constituting the keyboard of the machine. In the interest of compactness it has been found desirable to offset rearwardly the stem portions of the rearmost key levers, as indicated at 15", thereby enabling the keyboard and the type bars to be brought closer together. The stem portions of the key levers are thickened or enlarged as indicated at 15 where they pass through the comb plate 24, the said port-ions 15 providing adequate guiding faces for cooperating with the slots in the comb plate. Moreover the top and bottom faces of the portions 15 are horizontally disposed to provide stop faces that cooperate with stationary stop devices to limit movements of the key levers. Rigidly connected with the comb plate or reed bar 24-are supports 27 and 28 which accommodate stop devices 29 and 30 for the key levers as just referred to. Said stop devices may be of any suitable construction and composition and are so disposed that the stop 29 is engaged by the key levers near their forward end ortions when they are in normal posit-ion, t e stop 30 being arranged transversely of the key levers and below them so as to arrest said key levers at the end of their downward movements. Such movement or travel of the key levers is preferably restricted so that they are arrested before the type bars are brought into contact with the platen, for purposes hereinafter explained. It is to be understood, however, that the stop 30 to limit downward movements of the key levers is not essential to the noiseless operation of the type bars according to my present invention.

When a l5ey 25 is depressed its associate key lever 15 will be actuated, thereby operating the associate sub-lever 13, which, pivoting variably during .its movement on the support 17, will press or push the connected link 10 forward. The link in turn will actuate the connected type bar to swing it about its pivot from the position of rest towards the platen. Restoring springs 31 are provided, one for each, type action, the set of springs being horizontally disposed above the rear portions of the key levers, each spring having its forward end hooked through a hole 32 in the associate sub-lever 13.- The rear ends of the springs are hooked through and anchored to an angular plate 33 secured to the plate 23; In order to avoid interference of these springswith adjacent sub-levers their forward portions are preferably formed with long loops 31*.

Preferably each type bar is provided near its pivot with a contact face 34 which is adapted near the end of the stroke to contact with and operate a s ring-pressed universal bar 35 which is e ective to actuate the escapement mechanism in any suitable way. The 'universal bar proper is arcuate in shape and disposed in a corresponding slot indicated at 36 which is cut or otherwise formed in the rear lower portion of the type bar support 3.

Before describing in detail the main novel features of the invention, it may be noted that the type bars are arranged in the arc of a circle and in an inclined position, whereas the set of key levers are horizontally disposed and parallel, the set of key levers being as a whole of greater width than the set of type bars. Moreover, the type bars swing in radial planes while the key levers swing in parallel vertical planes. However, the type bars are actuated by impulses received substantially in their planes of movement by reason of the connections with the key levers afforded by the set of sub-levers 13. The rear arms of said sub-levers vary in length from their fulcrum points to their points of connection 12 with thepush links 10, said arms progressively increasmg in length from the middle to the sides of the system and mostly are bent or twisted back of the slotted guide 17 so as to bring the upper end portions of said sub-levers substantially into the planes of the type bars with which they are connected and which they actuate. This will be clearly understood from Figs. 1 and 2, Fig. 1 showing a middle type action and an end type action; and Fig. 2 showing several others also of the complete system or set.

Referring to the means for governing and controlling the type bars in the vicinity of the printing point on the platen, there is provided in the present instance for each type bar a governin device or controlling device in the form 0 a member 37 mounted directly on the t pe bar. One end of the member 37 is pre erably pivotally connected at 38 with a tail portion or extension 1 formed integrally with the type bar and extending backward and downward from the main or body portion of the bar 1 and at a slight angle thereto. *The outer or freeend portion-of the governing device 37 mayv be enlarged as shown .so as to enable it to be shortened somewhat without corresponding loss of necessary weight. The members 37 extend upward and forward from their points of pivotal connection with their associate type bars and are provided with longitudinally extending slots indicated at- 39, which are engaged by a guide whereby the course of the member 37 is controlled during operation. The guide in the present instance is common to all of the members 37 and is in the form of a wire or rod 40 curved in shape and having a stationary support whereon said guide rod 40 is held stationary. As shown in Figs. 1-3 the rod support is a sheet metal plate 41 having an angularly disposed extension or stiffening rib 42 at its lower end portion and provided at its ends with forwardly bent tabs or ears 43 perforated to receive screws whereby the supporting plate 41 may be secured to side plates of the machine. The upper edge portion of the plate 41 is formed with a series of kerfs or radial guide slots indicated at 44, each guide slot accommodating and guiding one of the members 37 so as to prevent lateral displacement thereof during the operation and to maintain said member in proper position at all times. The guide wire 40 is fixedly secured along the top edge of the plate 41 as by sheet metal clips 45 disposed at intervals along the plate and which are shaped to embrace the opposite face thereof, the holding devices 45 being fixed to the plate as by spot-welding. It will be understood that there is a set or series of slotted members or governing devices 37 one for each type bar 1, these members 37 being so disposed and guided as not to interfere with each other or with the type bars and the associated parts during operations of the type bars. It is further to be understood that the shapes and sizes of the governors 37 as well as their connecting points and the shapes of their slots 39 may be individually varied and altered to suit the exigencies of the construction to avoid interferencewith other parts and to obtain the -best results so far as the governing efiect of the members 37 is concerned. The plate 41 may be cut out as at 41 to afford passage for certain of the members 37.

When one of the printing keys 25 is actuated it will operate to swing the connected type bar 1 about the pivot 2 upward, rearward and downward towards the platen, the movement of the key continuing until the key lever 15 is arrested by contact of its portion 15 with the stop 30, at which time the printing end of the type bar will be in proximity to the printing point on the platen, for example, something like threeeighths of an inch distant from the printing point. For the greater part of this movement preferably the type bar governing device 37 connected to its tail end Will move substantially idly under the impulse communicated to it from the tail portion 1 of the type bar, the slot 39 being shaped so as to afford such movement. Just prior to the arrest of the key lever and subsequently thereto the movement of the type bar will e controlled and governed by the device 37 so that the speed of the type bar is lessened to such an extent that when it contacts with the platen (or paper thereon through the ribbon) the motion of the. type bar will have substantially ceased, although after such contact the printing pressure of the type bar will occur. The movement of the type bar subsequently to the arrest of the key lever will be uninterrupted due to the fact that the sub-lever 13 provides a yielding connection such that the sub-lever may continue to swing about its pivotal point of connection 14 after the arrest of the key lever, this further movement permitting the type bar to continue until it contacts with the platen. During such movement of the sub-lever independently of the key lever its nose 16 will swing out of contact with the bottom of the support 17. It will be noted that the movement of the part 37 is substantially opposite from that of its type bar.

Referring to the mode of operation of my invention it will be apparent that the slotted member 37 is in effect a controlling or'governing device for the type bar or carrier, which, however, in the initial stages of movement of the type bar under actuation of its key lever and until shortly before said key lever is arrested by its stop, is drawn along or slid over the guide 40 by the type bar without substantially performing any material function. In other words the sliding, bodily, substantially endwise movement of the slotted member is substantially idle or ineffective so far as slowing up the movement of the type bar or exerting a leverage action thereon is concerned until the type bar has been moved to bring the type thereon into proximity to the printing point.- After the arrest of the key lever, the further movement of the type bar will be under its own momentum and that due to the governing device, such movement being permitted by the yielding or lost-motion connection tothe key lever. However, the continuing movement of the slotted member has brought its point of connection 38 with the type bar close to its point of contact with the fixed guide 40, and these points are now so related that the member will turn on the guide as a fulcrum. It will be observed that the point 38 is so close to the fulcrum 40 that its speed of movement will be slight, with the result that the type bar movement is restrained and controlled and from this point its speed must necessarily be correspondingly slight. In other words, the type bar movement will be greatly slowed down and at the time of contact of the type the platen will be at a minimum. Consequently the usual noise due to the striking of the type on the platen will be substantially eliminated. Due to this slowing down If movement the striking force of the type would be slight and not suflicient to give an effective imprint. How- 4 as a lever member and ever, the continuing effect of the turning type bar is indicated at 2'. Comparing the movement of the slotted member or silencer; dotted line positions a y and z of the gov- 37 on its guide-will'result in a leverage action on the type bar, causing such pressure that a clear and satisfactory imprint will be obtained. During this stage, during the movement of the t pe bar from a point near the platen until it contacts therewith, and is pressed thereagainst, the slotted member will act as a lever of the first order, the load arm extending from the point of connection 38 to the fulcrum and the power arm extending oppositely from said fulcrum. It will further be noted that ,these arms vary in length during the operation of slowing down the type her until the printing point is reached and thereafter pressing the type with a printing pressure .against the platen, that is to say, the load arm progressively decreases and the power arm increases. The slotted member may be said to be in effect a flying or floating lever .variably cooperating with its fulcrum during effective operation, and providing means for controlling the movement of the type bar to the platen and effecting the printing operation.

When I refer in the accompanying claims to the controlling member moving idly or employ like expressions, it will be understood that this refers to the substantially ineffective movement of the controlling member during its sliding action, as pointed out above, as distinguished from the slowing up action and the pressure applying leverage action of the'controlling member on the type bar. In order td make somewhat clearer the points above discussed, different positions occupied by some of the parts during operation have been indicated by dotted lines in Fig. 1. It must be borne in mind, however, that these dotted line positions areonly approximate and for illustrativepurposes, and that they are not to be taken as absolutely accurate. Referring then to Fig. 1 it will be noted that the dotted line position at of the governing device indicates the position of said device just prior to the arrest of the key lever. From this :22 position, it will be seen that at this time'the controller 37, no longer being drawn along idly by the type bar, is beginning to become effective as such is acting on the type bar prior tothe arrest of the key lever. The position of the member 37 at the ,moment of arrest of the key lever is indicated by the dotted line position 3/ in Fig. 1, the corresponding position of the type bar being indicated by the dotted line position 3 V The position of the governor at the time of contact of the type bar is indicated by the dotted line showing marked 2, while the corresponding dotted line position of the that is,-

ernor 37, it will be observed that the governor exerts a progressively increasing effect due in part to the increase. in its length and to the corresponding decrease in the length of the opposite arm represented by the distance between the points 38 and 40. When the keylever is arrested it will be seen that the type bar is in control of an independent means which acts to affect its speed and its pressure on the platen independently of the key levers. It has been found in practice that itis of the utmost importance so to construct the parts that the distance between the points 38 and 40 will at the instant of type bar contact with the platen be as small as a practicable construction will permit. The less this distance is the less the noise resulting from contact of the type bar with the platen will be. A very small diflerence, one eighth of an inch or less, has been found to represent the difference between a noisy impact and asubstantially noiseless contact.

The invention has been particularly described and explained in connection with a type action including a stop (which I prefer) Whereby the key lever is arrested prior to the completion of the type bar movement. It is to be understood, however, that the principles of the invention are not limited to construction wherein such a stop is employed for the type bar may be controlled in accordance with my invention so that its operation may be rendered practically noiseless without the employment of a stop. The governing or silencing devices in the present instance are arranged in an are outside of the type bars which are interposed between said devices and the .platen.

Various changes may be made without departing from my invention.

What I claim as new and desire to secure by Letters Patent, is I p 1. The combination of a platen, a type bar pivoted in front of the platen, a type on said type bar, means for actuating said type bar comprising a key lever and a lost motion connection between said key lever and said type bar, a stop for said key lever, and means operating after said key lever engages its stop for reducing the speed of said type bar and communicating $11Ilt1flg pressure thereto, said last reclte means comprising a slotted member pivotally'connected to the tail of the type bar and a stationary guide cooperating with the slot in said member. I

2. The combination of a platen, a type bar pivoted in front of the platen, a type on said type bar, means for actuating said type bar comprising a key lever and a lost mogages it sto for reducing the s eed of said type bar be ore it reaches the printing point and for thereafter communicating printing pressure to the type bar, said last recited means comprising a single controlling member pivotally connected directly to the type bar and a stationary guide for said member.

3. The combination of a platen, a type bar pivoted in front of the platen, as type the type bar being related to its point of pivotal connection with said controlling member and to the guide so that said member directly exerts a leverage action on said type bar when said type is at the printing pomt.

4. In a type actuating-mechanism, the combination of a swinging type bar, actuating means therefor, a stop coacting with said means before the type bar reaches the printing point, and means for causing vthe type bar to swing to the printing point and print after the stop becomes effective, said last recited means comprising a slotted member pivoted on the type bar and a' stationary guide with which the slot in said member engages, the pivot of the type bar being related to its point of pivotal connect with said slotted member so that said -member exerts -a leverage action on said type bar when said type bar is at the printing point;

5. In a type actuating mechanism, the combination of a swinging type bar, actuating means therefor, and positively operating means rendered effective by said actuating means for causing the type bar to swing to the printing point and print, said positive means comprising a slotted member pivoted on the type bar and a stationaryguide with which the slot in said member enga es, the pivot of the type bar being relate to its point of pivotal connection with said slotted member so that said member exerts a leverage action on said type bar when said type bar is at the printing point, said slot being shaped and related to the other parts so that the movement of said slotted member in unison with the type bar is substantially ineffective to exert a leverage thereon until the type bar arrives in proximity to the printing \point,the said member thereafter turning on its guide as a fulcrum and exerting a leverage against the type bar.

6. In a type bar actuating mechanism, the

vcombination of a swinging type bar, actuat ing means therefor, a stop coacting with said means before the type bar reaches the printing point, and means for causing the type bar to swing. slowly to the printing po1nt and print after the stop becomes e ective, said last recited means comprising a controlling member attached to the type barand a relatively stationary guide for said member, said controlling member moving idly until the type bar nears the printing point and thereafter turning on its guide as a fulcrum and acting as a lever to apply powerto' said type bar.

7LIn type bar actuating mechanism, the

combination of a.swinging type bar, actuating means for starting the operation of the type bar, and other means for completing the operation of the type bar and causing it to swing slowly to the printing point and print, said other means comprising a member and a fixed support therefor, said member being connected to the type bar and being moved substantially idly by said type -bar until the printin point is approached,

said member therea ter cooperating with said support to fulcrum thereon and thereby apply power to said type bar.

8. vIn type actuating mechanism, the combination of a swingingtype bar, actuating tached to the type bar and having arms that vary progressively in length during the action of said lever on said type bar.

9. A type bar action comprising a swinging type bar, a key lever, a sub-lever pivoted on said key lever, a link connecting said sub-lever directly with said type bar, a lever member carried by the type bar, and a stationary guide forsaid lever member and with which it cooperates .to control the type bar in the vicinity of the printingpoint.

10. A type bar action comprislng' a type bar turning about a fixed center, a key lever, a sub-lever pivoted on said key lever, a link connecting said sub lever with said type bar, a stop effective to arrest the key lever,a lever member carried by the type bar, and a stationary guide on which said lever member fulcrums to control the type bar and exert a directleverage action thereon after the arrest of the key lever by said stop.

11. A type bar action comprising a pivoted bar, a key lever, a sub-lever connected to said key lever, a link connecting said sub-lever with said type bar, a support with which said sub-lever is adapted to engage variably between its ends during the operation of the type action, a lever member carried by the type bar, and a stationary guide with which said lever member cooperates to tain both a key lever and also a sub-lever,

control the type bar during part of its pivport to control the movement of the typebar near the printing point whereby the type bar is slowed down until it coacts with the platen and is subsequently caused to exert a printing pressure against the platen by the leverage action of the controlling member on its type bar.

13. In a typewriting machine, the combination of a platen, a set of swinging type bars arranged in an arc of a circle forward of the platen and normally inclined away from the platen, a set of horizontally disposed key levers, a set of sub-levers one pivoted to each key lever and having upwardly extending arms progressively increasing in lengths from the middle to the sides of the system, push links connecting the upper end portions of said sub-levers with said type bars, governing devices one associated with each type bar, stationary supporting means for said governing devices, and stopping means effective to arrest said key levers before the type bars reach the platen, said governing devices controling the operation of the type bars after the arrest of the key levers.

14. In a typewriting machine, the combination of a platen, a set of type bars arranged in the arc of a circle, a setof parallel key levers, a set of sub-levers one pivoted to each key lever and having an arm connected to the associate type bar, and a guide provided with slots certain of which conwhich is connected to key levers.

15. In a typewriting machine, the combination ofa platen, a set of type bars arranged in the arc of a circle, a set of parallel key levers, a set of sub-levers one pivoted to each key lever and having an arm con nected to the associate type bar, a guide provided with slots certain of which contain both a key lever and a sub-leverwhich is connected to another one of the key levers, controlling members one for eachtype bar, and a guide for saidcontrolling member's.

another one of the 16. In type actuating mechanism, the combination of a pivoted type bar carrying a type at its free end, actuatingmeans for operating the type bar, and a controlling sliding and member for controlling the movement of the type bar, said controlling member being pivotally mounted onthe type bar at the opposite side of its pivot from the type and moving in' a direction opposite fromthat of the body of the type bar. with a pivotal movement during operation.

17 In a typewriting machine, the combination of a platen, a set of type bars arranged-in an arc of a circle, key actuated means for operating the type bars, and a set of governing devices for controlling the type bars in proximity to the platen, said governing devices being carried by and pivoted to the tail portions of the type'bars and being disposed in an arc of a circle outside the type bars. which. are normally interposed between said governing devices and the platen, each governing device consisting only of a single lever-like member exerting a leverage action directly against its companion type bar at the last part only of its printing movement to cause a pressure imprint.

18. A- pivoted type bar combined with controlling means to slow down the travel of the type bar as it approaches the printing point and impart pressure to the type after it has reached the printing point, said means consisting of a sliding member. pivoted to the type bar, first sliding and finally revolving around-a fixed pivot.

19. The combination with a platen, of a rigid type bar pivoted to turn on a fixed pivot, type bar operating mechanism connected directly therewith, controlling means for the type bar consisting of a fixed element and a single controlling piece only mounted directly on the type bar and moved thereby and cooperative directly with said fixed element to slow down the type bar at about the striking moment and thereafter to exert a leverage to press the type bar against the platen to obtain the printing effect.

20. The combination of a rigid type bar pivoted to swing fre'ely to the printing point inan arc and having a type fixed thereto, key controlled means connected directly to the type bar for actuating it, a single member only-connected directly with and carried and actuated by the type bar .and movable relatively thereto for controlling the movement of the type bar at the last part of its printing stroke and efi'ective thereon at such time to slow up the movementof the type bar and substantially noise lessly effect a pressure imprint, and means coa-cting with said single device to aid in I controlling its movement relatively to the type bar, as and for the purposes specified.

21. The combination of a rigid type bar pivoted to swing freely to the printin point 'in. an arc and having a type fixed t 7 key controlled means connected directly to ereto,

the type bar for actuating it, said key controlled means comprising means that enable the type bar to travel the remainder of the distance to the printing point after the key thereof has been arrested, stop means for arresting the key of said key controlled means before the type reaches the printing position, and a single member only connected directly with and carried and actuated by the type bar and movable relatively thereto for controlling the movement of the type bar at the last partof its printing stroke and effective thereon at such time to slow up the movement of the type bar and substantially noise'lessly effect a pressure imprint.

22. The combination of a rigid type bar pivoted to swing freely to the printin point in an arc and having a type fixed tfi'iereto, key controlled means-connected directly to the type bar for actuating it, said key'controlled means comprising means that enable the type bar to travel the remainder of the distance to the printing point after the key thereof has been arrested, stop means for arresting the key of said key controlled means before the type reaches the printing position, a single member only connected directly with and carried and actuated by the type bar and movable relatively thereto for controlling the movement of the type bar at the last part of its printing stroke and elfective thereon at such time to slow up the movement of the type bar andlsubstantially noiselessly effect a pressure imprint, and means coacting with said single member to aid in controlling its movement relatively to the type bar after said key has been arrested by said stop as and for the purposes specified.

23. The combination of arigid type bar pivoted to swing in an arc to the printing position and having a type fixed thereto, key controlled 'means connected directly to the type bar for actuating it, a single controlling member pivoted directly to the type bar and carried and actuated thereby and mov able relatively thereto, and fixed guiding means cooperating with said controlling member and on which the latter has a bodily movement during one portion of the travel of the type bar and has a pivotal movement on the guide means during another portion of the travel of the type bar.

24. The combination of a rigid type bar pivoted to swing in an arc to the printing position and having a type fixed thereto, key controlled means connected directly to the type bar for actuating it, and controlling means for slowing down the movement of the type bar atthe last part of its printing stroke and applying it with a pressure imprint, said controlling. means consisting of a single member only actuated by the type bar and mounted to be given a bodily movement thereby during most of theprinting stroke of the bar and to receive a pivotal movement before the type reaches the printing position, which pivotal movement of said member applies a leverage action against the bar and causes it 'to effect a pressure imprint.

.25. The combination of a rigid type bar having a type fixed thereto and pivoted and free from obstruction in its pivotal movement to the printing position, ke con-v trolled means operatively connected irectly to the type bar for actuating it and comprising means which enable the type bar to continue its movement to printing position after the key of said controlling means is arrested in its operating movement, means for arresting the key before the type reaches the printing point, and controlling means for slowing the printing movement of the type bar at the last portion of its printing movement and applying a pressure imprint, said controlling means comprising a controlling member actuated by the type bar and guiding means coacting therewith to cause said controlling member tomove bodily in unison with the type bar during most of its printing stroke and until about the time the key is arrested by said arresting means and then enable said controlling member to receive a pivotal movement relatively to the type bar and apply a leverage action against the type bar and thus continue its motion to effect a pressure imprint.

26. The combination of a type bar, key controlled means for actuating the type bar,

and controlling means connected to the typebar for slowing the printing movement thereof and effecting a pressure imprint, said controlling means comprising a leverlikemember connected to the type bar to be moved bodily thereby substantially endwise during mostof the printing movement of the type bar and receiving near the end of the printing stroke a pivotal movement relatively to the type bar and applying a leverage action thereon to effect a pressure im print.

27 The combination of a plurality of type bars, key controlled? means for actuating sa1d type bars, and controlling means for slowing the printing movement of the type bars and eifecting a pressure imprint therefrom, saidcontrolling means comprising a plurality of separate arms one connected to each type bar and independently actuated.

thereby during most of the printing movement of the bar with a bodily substantially longitudinal movement and substantially free from a leverage action on the barand near the last portion of the printing stroke of the bar receiving a pivotal movement relative to its bar that produces leverage action on the bar and effects a further movement thereof and a pressure imprint therefrom,

and guiding means coacting with each of said arms to aid in controlling its movements as specified.

28. The combination of a rigid type bar pivoted to swing freely to the printing point in an arc and having a type fixed thereto, key controlled means connected directly to the type bar for actuating it, and means for controlling the movement of the type bar at the last part of its printing stroke and efl'ective thereon at such time to slow up the movement of the type bar and substantially noiselessly effect a pressure imprint, said means comprising a single controlling member only which is connected directly with and. is carried by and actuates the type bar and is movable relativelythereto.

Signed at Middletown, in the county of Middlesex and State of Connecticut, this 7th day of November, A. D. 1927.

GEORGE G. GOING.

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