US1883643A - Stencil printing machine - Google Patents

Description

. Oct. 18, 1932. ELLIOTT 1,883,643

STENCIL PRINTING MACHINE Filed Dec. 51, 1928 5 Sheets-Sheet l 1710621??? W P: W

Oct. 18, 1932. H. P. ELLIOTT STENCIL PRINTING MACHINE Filed Dec. 31, 1928 5 Sheets-Sheet 2 Oct. 18, 1932.

H. P. ELLIOTT 1,883,643

STENCIL PRINTING MACHINE Filed Dec. 31, 1928 5 Sheets-Sheet 3 Oct. 18, 1932. H. P. ELLIOTT STENCIL PRINTING MACHINE Filed Dec. 51, 1928 5 Sheets-Sheet 4 ticular operation represented by the coupons.

Patented 0a. 1a, 1932 UNITED STATES PATENT OFFICE HARMON' P. ELLIOTT, O1 WATEBTOWN, MASSACHUSETTS STENCIL PRINTING MACHINE Application Med December 31, 1928. Serial l io. 829,470.

amount for each piece operation. When a number of shoes of a certain type are to be made up, it is the practice to make out a number of order cards. thereon in duplicate columns the identifying numbers of the piece operations that are necessary to make up the particular type of shoe, together with other data. The various-workmen cut out of the card, with special punches that are provided for the purpose, coupons taken from one of the columns which bear thepiece number of the operation that they perform and the job number of the order. When the work is completed they turn in the couponsand are paid at a rate which has been previously set for the par- It is an object of the present invention to provide a stencil printing machine arranged to print up the order cards above described.

In afactory that is equipped to manufacture a large amount of difierent types of shoes there may be a large number, say three or four hundred, different piece operations required to make up all of the types of shoes. Each stencil of the stencil collection associated with the stencil printing machine has data thereon for one particular piece operation. When one particular type of shoe is to be made, it is obviously undesirable to print up order cards with all the piece operations for all of the types of shoes thereon. Consequently, it is a further object of the present invention to provide a stencil printing machine for the purpose herein set forth with selector mechanism so arranged that,

Each card has listed while all of the stencils of the collection are run through the machine when the order cards are being printed, only those stencils which relate to the particular type of shoe to be made are caused to be operated upon by the printin machine.

A further 0 ject of the invention is the provision of a stencil printing machine and a stencil collection therefor with the machine so arranged that the stencils are returned to the collection automatically after they have been run through the printing position of p the machine.

Another object of the invention is the provision of a stencil printing machine and a collection of stencils which are arranged in a predetermined order, combined with a selector mechanism which is arranged to condition the machine to print from certain stencils in the order in which they occur in the collection.

The order or work coupon card is provided with punch holes adjacent the piece numbers in both columns of the card so that the operative can locate his punch to punch out a coupon in one column that registers with other printed data, as the job number, adjacent each piece number in the coupon column of the card. I

A yet further object of the invention is to provide a stencil printing machine wherein the card punching and job number printing are carried out on the card in operations which follow the stencil printing operation.

In the machine embodying the present invention the successive portions of the paper tion of stencil printing machines and SEIQC'.

tor mechanisms therefor.

' Fig. 1 is a front elevation of a stencil prlnting machine embodying the present mvention.

Fig. 2 is a plan view of the machine. Fig. 3 is a detailed sectional elevation taken along line 33 of Fig. 2.

Fig. 4 is a detailed elevation showing a rear view of the selector mechanism and associated parts.

Fig. 5 is a detail of the locking and releas-. in mechanisms for the printing machine.

ig. 6 is an enlarged sectional detail taken through the axis of the selector disc.

Fig. 7 is a detailed elevation and Fig. 8 is a plan view of the contact member of the selector mechanism.

Fig. 9 is a sectional elevation taken along line 9-9 of Fig.1.

I Fig-10 is a plan view of the mechanism for returning the stencils to the stencil holder.

Fig. 11 is a perspective view of the construction of the stencil returning mechanism at the stencil holder.

Fig. 12 is a detailed side elevation of the intermittent feeding mechanism for the work order card.

Fi 13 is a detail illustrating the connection tween parts of the mechanism for operating the printing stamp.

Fig. 14 is a detailed elevation of the ratchet and gears of Fig. 12 for driving the intermittently operated feed rolls.

Fig. 15 is an end view of the brake of Fig. 14.

Fig. 16 is a sectional detail taken along line 16-16 of Fig. 3.

Fig. 17 is a plan view of a portion-of a work order or coupon card which is the product of the present machine.

The machine embodying the present invention comprises atable 20 below which is located the power mechanism22 which is of a type well known in the art unnecessary to describe further that serves to reciprocate the operating rod 24 under control of a treadle 26 by means of which the mechanism can be started and stopped. Power is supplied to the powermechanism by means of a shaft 28 fromwhich power is also taken. to operate the inking mechanism and the stencil elevatin and returnin mechanism hereinafter to be described. pair of spaced stencil tracks 30 are disposed above thetable and aesaeas extend lengthwise thereof and are adapted to guide successive stencils into and out of printing position. The collection of stencils A is contained in a stencil holder 32 which is located mainly above and at the right hand end of the stencil track and in line therewith (Fig. 1). A stencil pusher 34 of a well known type not necessary to describe and illustrated in greater detail is disposed beneath the pile of stencils in the holder 32 and is arranged to be reciprocated under said pile to move the lowermost stencils successively out of the pile and into and along the stencil track.

A printing platen 36 is located beneath the stencil track and is supported by arms 38,

see Fig. 3, which are pivoted to depending brackets 40 of the stencil table. A printing roll 42 is located above the stencil track and the platen and is journalled between rearwardly extended arms 44 which are connected to a horizontal yoke 46 pivoted on a horizontal shaft 48 carried by said arms 40. Inking mechanism 50 of a well known type is located above the printing roll 42 and is adapted to supply ink thereto. Components of said inking mechanism are rotated from the driving shaft 28 by means of belts 52 and 54 and the interposed countershaft 56, see Fig. 1. The paper strip 6 from which the coupon card is made is passed through an opening 58 in said yoke and under the stencil tracks 30 and above the platen 36.

The inklng roll and platen are adapted to be moved toward each other to support the strip in printing position and to press a stem cil a against the strip. To this end, an arm 60 is pivoted on a shaft 62 carried by the depending brackets 40. Said arm 60 has an upstanding integral arm 64 which terminates in an upper cam face 66 that underlies a roller 68 carried by the platen arms 38 and is so arranged that when said arm 64 is rotated in a counterclockwise direction, it raises the platen and holds it in an elevated position until the arm is restored to an inoperative position, as shown in Fig. 3.

The yoke 46 is integral with a depending arm 70 that is connected to the arm 60 through links 72, whereby both the platen and the printing roll are operated conj ointly. The stencil pusher is operated conjointly with the laten and printing roll and all are operated y ,an arm 74, see Figs. 3 and 5.

Said arm 74 is journalled on the shaft 62 and is pivotally connected with the upper end of the reciprocating actuating rod 24 so that said arm is reciprocated by said rod. The

76, Fig. 1, which is pivotally connected at one end with the stencil pusher 34 and at the other end with a forwardly extended arm 78 of a stencil pusher is operated by means of a link i said arm 74. The arrangement is such that as said arm 74 is reciprocated vertically, the hub 78 is caused to be reciprocated about its vertical axis thereabout to reciprocate the stencil pusher.

Said arm 74 has a locking and releasing connection with the printing roll and platen so that it can operate the printing roll and platen when a selected stencil passes into printing position and, can also reciprocate without operating the printing roll and platen.

To this end the arm-6001': the printing mechanism, see Figs. 3, 4 and 5, is extended alongside the outer end ofsaid arm 7 4 and carries at its outer end a pivotally mounted latch member 86. Said member has a tooth or projection 88 which is adapted to enter a notch 90 in the outer face ofsaid arm 74 under action of the tension spring 92 whereby to lock said arms 60 and 74 for conjoint reciprocatory movement. When the latch 76, however, is held out of engagement with said arm 74, as illustrated in Fig. 5, the

arm 74 can reciprocate, without operating the arm 60, which remains motionless.

Selector mechanism is provided to control the latch member 86 and its connection with 'the arm 74. The selector mechanism includes a vertically disposed latch-release arm 94 which is j ournalled in a depending bracket 96 carried by the rear edge of the table 20. Said arm 94 has a depending extension '98 that is disposed infront of a roller-100 carried by an upper end of the latch member 86 and is adapted to engage said roller on movement in a counterclockwise direction and effect the disengagement of said latch member 86 from said arm 74. The release arm 94 is disposed normally in position to maintain said latch member 86 disengaged from the arm 74 and is locked releasably in such position by a latch 102 which is loosely carried on a shaft 104. Said latch 102 normally engages a lower detent106 of said release arm 94 whereby to hold it in position as illustrated in Fig. 5. When the latch 102 is raised, it is caused to release the detent whereupon the release arm 94 can move in. a clockwise direction under action of a tensile spring 108 to permit the latch member 86 to engage the arm 4. v v The latch 102 is operated by means including an clectromagnet 110 Fig. 4 which is adapted to be energized by further elements I of the selector mechanism hereinafter to be described. The armature 112 is pivotedto the bracket 96 and is disposed above said electro-x'nagnet and has an extensionwhich un-, derlies said latch 102. Consequently when said electrov-magnet isenergized the armature is drawn down and the extension is elevated. whereby to elevate the latch and disengage it from the detent 106 so that the release arm 104 is free to operate and cause connection to be made for the operation of the printing roll and platen.

The selector mechanism includes a metal disc 114, see Figs. 3, 4 and 6, which is located above the table 20 at the rear of the stencil tracks and is j ournalled on a shouldered screw 116 carried by the supporting bracket 118. A selector disc 120 composed of paper or other electrically insulating material and best shown in Figs. 2 and 6 is located on one face of said disc and is provided with a plurality of perforations 122 therein near the outer edge thereof through which a contact member of the selector mechanism may be moved into engagement with the discs 114 whereby to complete the electrical circuit for the electro-magnet 110.' The insulating disc 120 is clamped removably to the face of said disc 114 by a clamping drum 124 which is re- :movably secured to a screw threaded stud 126 that is secured to the hub of the disc 114 coaxial with the screw 116.

The disc 114 together with the insulating selector disc 120 is adapted to be rotated in a.

bracket 118 and carries a roller '138 at its lower end which rides upon the cam face of a horizontal segmental cam member 140. Said cam member is located beneath the table 20 and is journalled on a vertical stud 142 therei of and has a rearwardly directed extension 144, see especially Fig. 2, which is pivoted to a link 146. The other end of said link is.

pivoted to the pusher operating arm 78. Thus at each operation of the pusher, the cam is reciprocated and the disc 114 is caused to 'be advanced step bystep whereby to bring the perforations 122 of the insulating selector disc 120 successively in front of a contact member 148, see Figs. 1, 4, 5, 7 and 8.

Said contact member is carried by a ring 150 which is, detachably received on a post 152. Said post is secured to and is insulated from a bar 154 that is slidable horizontally in a bracket 156 carried by the bracket 118. A tensile spring 158 is connected between said bar 154 and the bracket 156 and biases said contact member for movement toward the cils into and out of' rinting position with printing'therefrom. aid contact member is reeiprocated by means of a pivoted arm 160 which engages the free end of the bar 154. Said arm is connected through a link 162 with an arm 164 of the aforesaid shaft 104 so that when said shaft 104 is moved in a clockwise direction, the arm 160 is caused to push said bar 154 and consequently the contact member away from the selector disc. When the shaft 104 moves in a clockwise direction, the spring 158 causes the opposite movement of said contact member to bring it into engagement with the insulating selector disc 01' to move it through an aperture thereof into electrical engagement with the disc 114. In the latter case, the circuit through the electro-magnet 110 is adapted to be com pleted whereby to effect the connection between the operating arm 74 and the printing mechanism, in the manner above set forth.

The shaft 104 is reciprocated by means of a depending arm 166, see Figs. 4 and 5, the lower end of which is provided with a cam roller 168 which is located beside the outer end of the arm 74 and in operative relation with the cam face 170 of a cam block 172 fixed to one side of said arm 74. The shape of said cam face 170 is such that when the arm 74 moves upwardly and is traversing the latter part of its range of movement, the arm 166 is permitted to move in a counterclockwise direction and thereby permit the spring 158 to move said contact member toward the selector disc. During the downward movement of said arm 74 the.reverse action takes place. If the selector disc 120 has one of its perforations 122 disposed in front of the contact member, the electro-magnet is energized and the release arm 94 is released to permit the connection between the latch member 86 and the arm 7 4. On the next upward stroke of the arm 74, the release arm 94 is adapted to be again restored to its normal position. To this end, the arm 94 is provided with a cam roller 174 which is adapted to be engaged by the inclined cam face 176 of a cam 178 carried by the arm 74. It is apparent that as said arm 74 is moved upwardly the machine. Thus each forward step of thev disc corresponds with one operation of the machine to pass one stencil into and out of printing position. The perforations 122 in the disc are peripherally spaced from each other by distances which correspond to the eeaeee locations of the selected stencils in the collection so that the machine operates only on selected stencils.

The stencils of the collection are adapted to be returned automatically into the top of the stencil holder 32 after they have been passed throught the printing position whereby to enable the machine to print up duplicate order cards without unnecessary interruption. To this end, means are provided to take the stencils from the delivery end of the stencil track and elevate them approximately to the level of the top of the stencils in the holder and return them to the stencil holder. The elevating means, see especially Figs. 1, 2 and 9, is located at the left hand side of the machine above and at one end of the stencil track and comprises essentially two duplicate stencil raising devices the lower one of which feeds into the upper device. These devices are constructed essentially as illustrated in the Sterling Elliott Patent No. 1,210,440, dated June 2, 1917. The lowermost raising device comprises a pair of spaced side plates 180 which are arranged in line with the stencil track and have aligned circular grooves 182 formed in their confronting faces in which the ends of the stencil are adapted to be received. A shaft 184 is journalled in said plates and carries a yieldingly supported frame 186 which has a pair of outstanding arms 188. The shaft is adapted to be rotated whereby to move said arms into engagement with a stencil in the stencil track and to move the stencil upwardly in the circular grooves 182 to the upper part of the device.

The uppermost raising device. is similarly provided with a pair of end plates 190 which are supported upon the lower plates 180 and have aligned circular grooves 192 that communicate with the lower grooves 182. A shaft 194 is journalled in said plates 190 and carries a yielding frame 196 which has arms 198 that are revolved as the shaft is rotated to move the stencil from the upper portion of the lower grooves 182 upwardly in the grooves 192 into the upper portion of the plates and onto a conveyor belt 200.

It will be noted that the lowermost stencil elevating device reverses the position of the stencil while the uppermost is deposited on the conveyor belt in the same position in which it passes through the track. This is a desirable feature in that it keeps the same facesof the stencils always uppermost in the stencil collection. v I

The shafts 184 and 194 of the raising and lowering devices are connected together for conjoint rotation at equal speeds by the shaft 202 and the sets of meshing bevel gears 204. The two shafts are driven by means of a sprocket wheel 206 which is fixed to the lower shaft 184 and is driven from a sprocket 208 fixed tothe drive shaft 28 by a chain 210.

The conveyor belt 200 is endless and is driven by a pulley 212 fixed to a shaft 214 which is j ournalled to brackets 216 carried by one of the end plates 190 of the upper elevatin mechanism. The shaft 214 is driven by a elt 216 from the power shaft 28. The upper and lower passes of the conveyor belt 200 are practically superimposed at the upper elevating device and the lower pass of the belt is supported on an idler roll 218 journalled between said brackets 216. The passes of said belt are extended forwardly to the stencil holder 32. The forward end of the belt is passed about a pulley 220 which'is located between the side lates 222 of an adjustable belt supporting rame, see Figs. 1 and 10. Said plates extend above the top pass of the belt whereby to prevent the stencils from falling off the belt. I

The height of the right hand end of the belt with respect to the stencil holder is varlable and to this end the side plates 222 of the belt supporting frame are pivotally mounted on a shaft 224 which is carried by brackets 226 secured to the right hand plate 190 of the upper elevating device. The r1 ht hand end of the belt supporting frame as a pair of forwardly extended ar 228, see especially Fig. 11, which have slots 230 in their forward ends through which pins 234 are loosely extended. Said p1ns are carried by a generally U-shaped clamping frame 236 which surrounds the stencil holder and can be secured in any vertically ad1usted position thereon by the set screw 238. By raising and lowering said frame 236 the belt supporting frame can also be raisedand lowered whereby to'bring the top pass of the belt approximately at a suitable height with respect to the top of the stencil collection in the holder. The frame 236 is provided with a vertical plate 240 which is located at the left side of thestencil holder beneath and forwardly of the conveyor belt and in a position to engage the ends of the stencils 1n the upper part of the holder and to reta n them in position in the holder in any posltion 1n which the belt supporting frame may be adjusted. With this arrangement, the machine is adjustable to receive and operate upon stencil collections of various slzes.

The order card which is the product of the present machine and from which the piece work coupons are cut is illustrated in Fig. 17. The card I) is printed from a relatively long and narrow strip of paper and has 'two data columns 0 and d. The two columns have rows of duplicate data 6, f, g, and the like which indicate the type numbers of particular piece work operations togctherf with other data 2' which may indicate the price the workman is paid for each operation or the like. Such data is borne by the different stencils and is adapted to be printed on the order card by the stencils when they are in printin position beneath the printing roll and p aten. The right hand column al also bears series of numbers h, each series being duplicated in the difierent lines of the column. This data may re resent the order number for the. order of s oes that is to be manufactured. The order numher is printed on the card by mechanism independent of the stencils. The card also bears in the column 0 a row of perforations k and in the column d a row of perforations l which are staggered with respect to the perforations 1:. These perforations are guide perforations which are adapted to receive prongs of a special punch employed by the iece workmen to cut out of the column d 0 the card small coupons m, the outline of which is shown in the dotted lines. Each coupon bears the order number k and the piece work operation data e. At the same time the coupon is cut out, the punch usually prints on the card opposite the space vacated by the coupon the workmens numbers. The card with the coupons cut out is retained by the factory mana ement while-the coupons are turned into t e office by the workmen after the work called for by the piece work operation numbers have been performed; and the workmen are credited with amounts as indicated by the cou ons. The perforations k and Z are formed 1n the card as a step following the stencil printing operation.

The order number printing and card punching mechanisms are illustrated more particularly in Figs. 2, 3, and 12 through 16. Said mechanisms are carried by a. plate 242 which is secured upon the table 20 in front of the printing roll. A horizontal shaft 244 is journalled in upstanding brackets 246 of said plate and has fixed thereto a rearwardly extended arm 248 which underlies one of the arms 44 which support the printing roll and is adapted to be engaged and depressed by a cam roller 250 carried by said arm when the printing roll is depressed, thereby to turn said shaft in a clockwise direction. Vertically depending punches 252 are pivoted to arms 254 fixed to said shaft 244 and operate in bushings 256. Female dies 258 are located beneath said punches. The paper strip or card b is adapted to be moved forwardly above said female dies and beneath said punches and is held stationary at the time the punches descend to form the holes In and l in the strip. Tubes 260 are located beneath the female dies 258 and serve to conduct the punchings into a receptacle 262, see Fig. 1, or into some location away from the operative parts of the machine.

The printing device 264 for the order numbers h of the card is located in front of the punches and above the card strip. Said printing device is of the self-inking type which is common in the art and need not be further described except to state that it includes a vertically movable frame 266 which bears the printing characters and is movable downwardly to print upon the paper strip and is restored to elevated position by I a compression sprin .268 which encircles the vertically movab e rod 270 that carries the printing frame. Said rod 270 is dem pressed to effect the printing operation by means of a roller 272 which bears upon the top of said rod and is carried between arms 274 of a frame that is journalled on a shaft 276 carried by the upstanding arm 278 of a bracket 280 supported by the plate 242. Said arms 274 are reciprocated by mechanism operated by includes an arm 282 which is fixed to said shaft 244. A yoke 284 is pivoted on a screw 286 carried by the upper end of said arm. Said yoke has a forwardly extended tube 288 in which is slidably received a rod 290, which rod is carried by a yoke 292 pivoted on an arm 294 fixed to the shaft 276. A compression spring 298 encircles said tube and rod and bears against both yokes. Pins 300 and 302 are fixed in said tube and rod respectively and engage the convolutions of said spring so that as said yoke 284 is moved to the right, Fi s. 12 and 13, by the clockwise movement 0 said arm 282, the motion is transmitted through said spring to the arms 274 and consequently the plunger or rod 270 of the printing device is depressed into printing engagement with the paper strip. When said arm 282 is moved in the opposite direction, the plunger of the printing device is released and is raised by a spring 268 into a position free from the paper strip.

The arm 282 is held yieldingly in a normal or inoperative position by means of a tensile spring 304, one end of which is connected with an arm 306 integral with said arm 282 and the other end of which is connected with a fixed support.

The paper strip is fed forwardly in a step by step manner by a pair of feed rolls 307 which are located above the paper strip 6 immediately in the rear of'the stencil track and are fixed to a horizontal drive shaft 308. Said shaft has a gear 310 thereon which meshes with a gear 312 fixed to a shaft 314 that is located above the feed roll shaft and is journalled in a suitable bracket 316. An arm 318 is loosely mounted on said shaft 314 and is pivotally connected with an upwardly and forwardly extended link 320 which has a longitudinally elongated slot at its upper end. An arm 324 is fixed to and upstands above the arm 306 and has at its upper end a screw 326 that is loosely received in the slot 322. A spring urged pawl 328 is journalled on the pivotal connection 330 between the link 320 and the arm 318 and engages a ratchet 332 fixed to the shaft 314 the shaft 244. Said m ebliamsm so that as said arm 318 is reciprocated a step by step movement in' one direction is imparted to the shaft 314 and consequently to the the printin clockwise direction without driving the feed rolls. When, however, the printing roll is elevatedthe spring 304 operates to move the.

arm 318 through the link 320 and the arm 324 and thus rotate the printing roll andadvance the paper sheet forwardly by a suitable amount.

A brake drum 334 is fixed to the ratchet shaft 314, see Figs. 14 and 15, and is engaged by a friction shoe 336 to hold the ratchet and consequently the feed rolls from undesired rotation.

When the strip is first passed through the machine, the piece work data e is printed by the stencil. In the next operation the strip is moved beneath the punch and, in the following operation, beneath the job order printing device. The punch and the job order printing device operate together so that the job number is printed on the first-line while the holes are punched on the second line and the third line is being printed by the stencil. At the end of the collection of stencils, holes remain to be punched in the last two lines and the job order numberto be printed on the last' three lines. Consequently means are provided to operate the card feeding and job printing devices by hand whereby to effect the necessary operations on the last three lines on the card. This is conveniently done by a handle 338 which is fixed to and extends forwardly of the arm 282. By the manipulation of the handle the shaft 244 is operable independently of the operation of the printing mechanism thus to operate the card feeding mechanism and the punching and job printing devices.

When the card is to be removed from the machine, the feed rolls can be disabled. The card is pressed against the feed rolls 306 by press rolls 340, which are located beneath the feed rolls and are carried by arms 342 of ajframe pivoted to brackets 344 which depend from the table 20. Said frame is provided with a forwardly extended arm 346 that is urged downwardly by .a compression spring 348 thus to maintain the rolls 340 against the card in contact with the feed rolls 306; Said rolls 340 can be held in a low position free from operative association with the feed rolls by means of a pivoted hand lever 350 which has an inclined cam slot 352 therein in which a pin 354 of said arm 346 is loosely received. By moving said lever 350 in a counterclockwise direction, the arm 346 is caused to be raised and held in raised position until the lever 350 is restored to the position illustrated in 3.

I claim:

1. A stencil printing machine having the combination of a stencil holder, printing mechanism, means to move successive stencils from said holder to said printing mechanism and thence therebeyond, a conveyor device elevated above said printing mechanism and operable to return used stencils to said holder, and an elevating device arranged to raise used stencils to said conveying device, said elevating device consisting of two elevating mechanisms one of which is arranged to deliver a used stencil into the second mechanism and to reverse the stencil during its action and the second mechanism having means to again reverse the stencil presented to it and to deliver the stencil to the conveying device whereby itwill be returned to the stencil holder in the same position as it was moved therefrom.

2. A stencil printing machine having the combination of a stencil holder, printing mechanism, means to move successive stencils from said holder to and beyond said printing mechanism, a pair of stencil elevating and reversing devices which act successively upon the stencils to elevate them above said printing mechanism, and a conveying device to conduct the elevated stencils back to said holder.

3. A stencil printing machine having th combination of a stencil holder, printing mechanism, means to move successive stencils from said holder to and beyond said printing mechanism, a pair of superposed stencil elevating devices into the lowermost one of which the, stencils are moved, each of saidelevating devices having means provid ing an arcuate path along which the stencils are moved and elevated and at the same time are reversed, whereby the stencils delivered by the uppermost elevating device face in the same direction as when passing to said printing mechanism, and a conveying device operable to receive stencils from the uppermost elevating device and to conduct the stencils to said holder.

4. A stencil printing machine having the atively reversed, and a stencil conveying device arranged to receive the elevated stencils from said elevating device and to deliver them to said holder.

5. A stencil printing. machine having the combination of a stencil holder, print-ing mechanism, a stencil elevatin device which reverses the stencils twice in e evating them, means to move successive stencils from said holder to said printing mechanism and thence to said elevating device, and a conveyor belt extended between said elevating device and said holder arranged to conduct elevated stencils from said elevating device of said holder.

6. A stencil printing machine having the combination of a stencil holder, printing mechanism, a stencil elevating device, means to move successive stencils from said holder to said printing mechanism and thence to said elevating device, a conveyor belt extended between said elevating device and said holder arranged to conduct elevated stencils from said elevating device of said holder, said conveyor device having means by which it can be raised and lowered with respect to said stencil holder, and means carried by said raising and lowering means which overlies the edges of at least part of the stencils in the holder.

7. A stencil printing machine for printing duplicate lists each containing the same data, comprising the combination of printing mechanism, means to move successive stencils of a stencil collection repeatedly in an endless path and to present the stencils successively to the action of said printing mechanism, selector mechanism operable to control the operation of said printing mechanism to print from selected stencils only of the collection including a selector member which has as many selecting steps as there are stencils in the collection and which is arranged to be moved completely about an endless path in a series of steps the total number of which correspond with the total number of stencils in the collection,means to move said selector member one step for each stencil that is presented to the action of said printing mechanism, and means for moving a list card,

through said printing mechanism in response to the selected stencils only.

8. A stencil printing machine for printing duplicate lists each having the same data, comprising the combination of printing mechanism located at a printing position, means to move successive stencils of a stencil collection repeatedly in an endless path through said printing position, selector mechanism operable to efiect the operation of said printing mechanism on the selected stencils only of said collection including a selector member which is movable in a series of steps each one of which corresponds with a stencil of the collect on, said selector member arranged to make a complete movement in an endless path in a total number of steps which corresponds with'the' total number of'stenoils in the collection, means to move said member a step for each stencil that is presented to the action of said printing mechanism, and means to move a list-card through the printing position in response to selected stencils only.

9. A stencil printing machine for printing duplicate lists each having thev same data, comprising the combination of printing mechanism, means to move successive stencils repeatedly through an endless path to and from said printing mechanism, selector mechanism operable to effect the operation of said printing mechanism on selected stencils only of the collection each time they come into printing position including a rotatable selector disc having means to operate said selector mechanism in accordance with previously selected stencils of 'the collection, means to rotate said disc in a step by step manner in accordance with the movement of the stencils of the collection, said disc being arranged to make a complete revolution by the time all of the stencils have been passed throrgh said printing mechanismand to rotate repeatedly in the same direction,. and means for moving a list-card by successive steps through printing position in response to selected stencils onl 10. A stencil printing machinefor printing duplicate lists each containing the same data,

comprising the combination of stencil printing mechanism", means to move successive stencils of a collection thereof in an endless path to the action of said printing mechanism, selector mechanism arranged to efl'ect the operation of said printing mechanism on selected stencils only of the collection, control means for said selector mechanism including an electrically-conducting table WlllCll is adapted for repeated rotary movement in one direction, means to rotate said table one step for each stencil that is presented to the action of said printing mechanism, an insulating endless selector disc carried by said table having perforations therein in posltions corresponding to positions of selected stencils in the collection, a contact member movable through said perforations into and out of electrical connection with said table, electrically-operated means, controlled by said contact member arranged to govern said selector mechanism, and means governed by the printlng mechanism as it operates in response to selected stencils only to move a list-card in a step by step manner through the printing position.

11. A stencil printing machine having the combination of a reciprocable printing device, a reciprocable power device, a breakable connection between said devices, a control member for said breakable connection, electromagnetic latching and releasing means for said control member, means to move successive stencils of a collection to the action of said printing device, a rotatable table, means to advance said table one step for each stencil that is presented to the action of said printing device, an insulating selectordisc carried by and movable with said table having perforations therein located in positions corresponding with the positions ofthe' selected stencils in said collection, and a contact member in control of said electro-ma etic latching and releasing means dispose in position to enter said perforations and make electric contact with said table, and means to reciprocate said contact member toward and away from said selector disc in accordance with the movements of the stencils.

12. In a stencil printing machine the com,- bination of printing mechanism, a pusher arranged to move successive stencils-to the action of said printing mechanism, a reciprocable operating member for said pusher, selector mechanism including a rotatable disc, pawl and ratchet mechanism for rotating said disc in a step by step manner, a reciprocable cam member for operating said pawl and ratchet. mechanism, and means operatively' connecting said cam member with said reciprocating pusher-operating member so that said disc is caused to advance one step each time a stencil is moved.

13. A stencil printing machine having the combination of printing mechanism, a stencil holder, a stencil elevating device, means to move successive stencils from saidholder to the action of said printing mechanism and thence to said elevating device, a conveyor member operable to conduct elevated stencils from said elevating device back into said holder, selector mechanism arranged to effect the operation of said printing mechanism only on selected stencils, and control means for said selector mechanism including an endless rotatable stencil selecting member which is adapted to be advanced one step for each stencil that is passed to the action of said printing mechanism and to make a complete revolution when all the stencils in the collection have been presented to the action of said selector mechanism including a rotatable disc having stencil selector means which are positioned about said disc in locations corresponding with the locations of the selected stencils in the collection, means to advance said disc .one step for each stencil that is control the operation'of said selector mecha nism.

combination of a stencil printing device hav ing means to present successive stencils to a sheet, a second printing device, automatically operative means to feed the sheet between said printing devices, and manuallyopera- 'tive means to feed the sheet independently of said automatically operative means.

16. A stencil printing machine having the combination of a stencil printing device-hav ing means to present successive stencils to a sheet and a second printing device both of which have common operating means,- and means to operate sa1d second printing device independently of said stencil rinting device.

17. A stencil printingmacl iine having the combination of a stencil printing device having means to present successive stencils to a sheet, a second printing device, a punching device, common power-actuated operating means for all three. devices, and manual means for operating said second printing device and said punching device independently of the operation of said stencil printing dev1ce. I

18. A stencil printing machine having the combination of a reciprocable stencil printing device having means to present successive stencils to a sheet, a sheet punching device located in front of said stencil printing device, and means actuated by reciprocatory movements of said stencilprinting device for operating said punching device.

19. A stencil printing machine having the combination of a stencil printing device having means to present successive stencils to a sheet, a sheet punching device, a second printing device, means for operating said punching device, and operating means for said second printing device controlled by said punching device;

20. A stencil printing machine having the combination of a reciprocable stencil printing device having means to present successivestencils to a sheet, a' sheet punching device having operating mechanism actuated by movements of said reciprocable stencil printing device, a second printingdevice, and operating mechanism therefor controlled 'by said punching device.

21. A stencil printing device having the combination of a. reciprocable stencil printing dev ce having means to present successive stencils to a sheet, a second printing device, a punching device, operating mechanism for said second printing and punchlng devices actuated by reciprocatory move-' ments of said stencil printing device, and manually operated mechanlsm for operating said punching and second printing devices independently of said stencll prmtmg device.

22. A stencil printing machine having the .15. A stencil printingmachine having the combination of a stencil printing device havmg means to present successive stencils to a sheet, a punching device, a second printing dev ce, means to move the sheet between said de v1ces,a common operating mechanism for sa1d three devices, and manually operated mechanism for said punching and second printing devices which also constitutes manually operating means for said sheet feeding means. a

, A machine for printing successive dupl cate list-cards, comprising printing'mechamsm, means, for circulating a collection of stencils in an endless path successively to the actionof said printing mechanism, each stencil containing difl'erent data and the entire collection containing a larger amount of data than is required for the list, a stencil-selector containing as many difierent selecting-stations as there are stencils in the collection and having means at selected stations for efiecting the selecting and printing of stencils corresponding with such stations, means for moving said selector in an endless path in synchronism with the stencils, and means for moving a list-card by successive steps through the printing mechanism in response to selected stencils only.

24. A machine for printing successive duplicate list-cards, comprising printing mechanism, means for circulating a collection of stencils in an endless path successively to the action of said printing mechanism, each stencil containing different data and the entire collection containing a larger amount of data than is required for the list, a stencilselector containing as many difierent selecting-stations as there are stencils in the collection and having means at selected stations for effecting the selecting and printing of stencils corresponding with such stations, means for moving said selector in an endless path in synchronism with the stencils, means for moving a list-card by sucqessive steps through the printing mechanism in response to selected stencils only, and means operative in response to selected stencils only for printing successively on the list-card repetitions of the same data in register with each [stencil-printed data.

25. A machine for printing successive duanism, means for circulating a collection of stencils in an endless path successively to the action of said printing mechanism, each sten- .cil containing difi'erent data and the entlre corresponding with such stations, means for moving said selector in an endless path in synchronism with the stencils, means for 'plicate list-cards, comprising printing mechmoving a list-card by successive steps through the printing mechanism in response to selected stencils only, means operative in response to selected stencils only for print ing successively 0n the list-card repetitions of the same data in register with each stencil-printed data, and means operative in response to selected stencils only for perforating said card in register with each stencilprinted data thereon.

In testimony whereof, I have signed my name to this specification.

HARMON P. ELLIOTT.

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