US2122536A

US2122536A - Driving mechanism for printing apparatus and the like

Info

Publication number: US2122536A
Application number: US121848A
Authority: US
Inventors: Walter B Payne
Original assignee: TODD CO Inc
Current assignee: TODD CO Inc; TODD COMPANY Inc
Priority date: 1937-01-22
Filing date: 1937-01-22
Publication date: 1938-07-05
Anticipated expiration: 1955-07-05

Description

July 5, 1938. B, A NE 2,122,536

DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Filed Janl22, 1937 7 Sheets-Sheet l IiI H I IH UIH I UI UI llllll ml!!!mnmrlllmuml 7w: ATTORNEY July 5, 1938. w. .B. PAYNE DRIVING MECHANISM on PRINTING APPARATUS AND THE LIKE 7 Sheets-Sheet 2 Filed Jan 22, 1937 WZM $| ,4" Ads ATTORNEY I July 5, 1938.

w. B. PAYN'E DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Fil-ed Jan. 22, 1937 '7 Sheets-Sheet 3 INVENTOR fifZzy/w Ml 72w ATTORNEY I 5, w PAYNE DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Filed Jan. 22, 1937 7 Sheets-Shet 4 234 215 P6 r10 8INVENTOR 2 153-5 g4 fiPzc rfine his ATTORNEY July 5, 1938., w B PAYNE 2,122,536

DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Filed Jan. 22, 1957 7 Sheets-Sheet 5 INVENTOR .1? EP me his ATTORNEY July 5, 1938. w, B, PAYNE 2,122,536

DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Filed Jan. 22, 1937 7 Sheets-Sheet 6 @1 7 72 67 I 7 (I 6.9 (a

I i I v H BFa yne z izmw his ATTORNEY Juiy 5, 1938 3 PAYNE 2 322536 DRIVING MECHANISM FOR PRINTING APPARATUS AND THE LIKE Filed Jan. 22, 193'? '7 Sheets=-$heet 7 lmmrmuw- INVENTOR W B P 76 BY WM Z417 ATTORNEY Patented July 5, 1938 UNiTED STATES PATENT QFFECE DRIVING MECHANISM FOR PRINTING AP- PARATUS AND THE LIKE Application January 22, 1937, Serial No. 121,848

Claims.

This invention relates to a drive mechanism for printing apparatuses and the like which are intended primarily for printing or performing other operations on checks, drafts or other articles such, for example, as tickets, statements or other commercial forms, and many features of the invention are applicable to the field of printing apparatus in general, more particularly to interacting clutch mechanisms for such machines.

An object of the invention is the provision of an improved mechanism of a simple and practi cal nature for eiiecting printing and other operations described herein.

A further object of the invention is the provision of apparatus of an automatic character which will operate to print as desired without further attention from the operator after he has set the mechanism to print the desired amount, has positioned a sheet relative to the printing line, and has actuated a trip or other member which starts the operation.

Another object of the invention is to provide a clutch mechanism comprising a plurality of driving members and a plurality of driven members adapted to be connected to and disconnected from each other by various means at predetermined parts of the cycle of operation of the mechanism.

Still another object of the invention is to provide a clutch mechanism for a plurality of separately actuated mechanisms of a machine operated by a common source of power, the clutch mechanism comprising a plurality of driving members connected with the common source of power and a plurality of driven members operatively connected with the separately actuated mechanisms, and the driven members being adapted to be connected to and disconnected from the driving members so as to operate the separately actuated mechanism at predetermined parts of the cycle of operation.

A further object is to provide a machine with a plurality of clutch mechanisms for connecting a plurality of operating mechanisms with a common source of power, one of the clutch mechanisms adapted to be tripped to connect one of the operating mechanisms with the power source, means then actuated by the operating mechanism connected with the power source for effecting the tripping of another of the clutch mechanisms for connecting certain other operating mechanisms with the power source, and also the provision of means for temporarily disconnecting certain of the clutch mechanisms from the power source so that their respective operating mechanisms may rest at predetermined parts of their cycle of operation of the machine.

Still another object is the provision in a machine oi the character described, of selecting means, such as a keyboard, for positioning stops corresponding to the desired type to be printed from, automatic means for moving and position ing the desired type at a printing line relative to the stops set by the keyboard, impression means effective to cause an imprint to be taken from the type set at the printing line and separate clutch mechanisms operable to render the type moving and positioning means and the impression means efiective during different parts of the cycle of operation of the machine.

A further object is the provision of one clutch mechanism for moving the selected type to and from a position at a printing line, and another clutch operable to effect the actuation of the impression mechanism to produce an imprint of the type positioned at the printing line, the arrangement being such that means operatively connected with each clutch mechanism will act during the cycle of operation of its respective clutch to efiect operation of the other clutch mechanism during different parts of the cycle of operation of the machine.

A still further object of the invention is to provide a clutch mechanism adapted to be tripped by the operator after having selected the desired type characters, whereupon this clutch mechanism during its initial movement will eiiect the movement and positioning of the selected type to a printing line and also to effect the tripping of another clutch mechanism for actuating an impression means, the first mentioned clutch mechanism is then adapted to be temporarily disconnected, the second mentioned clutch mechanism during its cycle of operation causes the impression means to become effective to produce an imprint of the type positioned at the printing line, and then again trip the first mentioned clutch mechanism so that it will complete its cycle of operation and return the type positioned at the printing line back to normal position.

A further object of the invention is to provide an improved machine of the class described in which a separate clutch is provided for effecting the moving and positioning of a plurality of type members to and from a printing line, and in which another clutch mechanism is provided for effecting the actuation of an impression mechanism to produce an imprint of the type positioned at the printing line, and a common source of power for moving and positioning the type members and for the actuation of the impression means through connection of their respective clutches therewith during different parts of the cycle of operation of the machine.

A still further object of the invention is to provide an improved machine in which the impression means for producing an imprint of the type positioned at a printing line comprises a plurality of separate members adapted to be sep-. arately and progressively actuated into cooperative relation with the type positioned at the printing line.

To these and other ends the invention resides in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Fig. 1 is a plan view of apparatus constructed in accordance with the preferred embodiment of the invention;

Fig. 2 is a front elevation Fig. 3 is a vertical of the same; section substantially on the line 3-3 of Fig. 2, generally illustrating various parts of the operating mechanism;

Fig. 4 is a fragmentary section through a portion of the apparatus, taken approximately horizontally and substantially on the line 4-4 of Fig. 5 is a vertical section substantially on the line 5-5 of Fig. 4, generally illustrating the clutch mechanisms and various parts carried by the clutch shaft;

Fig. 6 is a vertical section substantially on the line 6-6 of Fig. 5, illustrating the type moving and positioning clutch mechanism in normal position;

Fig. 7 is a similar view showing the type moving and positioning clutch after having rotated through part of its cycle of operation, and then temporarily disconnected;

Fig. 8 is a vertical section substantially on the line 8-8 of Fig. 5, illustrating the impression clutch mechanism in normal position;

Fig. 9 is a vertical section substantially on line 9-9 of Fig. 5, illustrating the impression clutch mechanism, and showing the cam associated with the type positioning clutch as having tripped the impression clutch mechanism and its clutch dog engaging the driving means;

Fig. 10 is a fragmentary section of the impression clutch mechanism taken substantially on line lU-l0 of Fig. 5, showing the cam associated therewith for controlling the intermediate clutch latch plate associated with the type positioning clutch mechanism;

Fig. 11 is a vertical section substantially on the line l||l of Fig. 2, showing the normal position of the operating connections between the base and the upper casing, including the safety drive mechanism;

Fig. 12 is a fragmentary view similar to Fig. 11, showing the operating connection between the upper casing and the base in an abnormal position, and the safety drive mechanism included therein, effective to permit movement of the operating crank mechanism even though the mechanism in the upper casing is prevented from movement;

Fig. 13 is a vertical section taken substantially on the line I3l3 of Fig. 11, showing one of the U-shaped members connecting the upper casing and the base of the machine, and the various parts of the operating connections including the trip bar mechanism; and

Fig. 14 is a fragmentary vertical section of the right side of the machine taken substantially on the line l4|4 of Fig. 13, with the casing removed to show the trip mechanism for the type positioning clutch.

The same reference numerals throughout the several views indicate the same parts.

The present invention may be embodied in machines of various types and is not limited to any particular form of machine, such as a printing apparatus for applying characters to a sheet or Web of paper. In this instance, I have chosen for illustration a machine similar to that shown in my application Serial No. 704,328, filed December 28, 1933, now issued as Patent No. 2,092,852, granted September 14, 1937, to which reference may be made for information regarding details not herein fully disclosed.

General description It Will be helpful in understanding the coordination of the Various detailed parts of the mechanism if a general outline of the principal parts is given.

The keyboard, type positioning mechanism and ribbon inking means carried in the casing are of the character shown and described in the above mentioned patent. The keyboard is made up of separate units, one in each denomination and having a series of keys numbered 1 to 9 inclusive. The depression of any key in any denomination sets a stop positioned in accordance with numerical value of the key. Zero and blank stops are provided, the zero stops are effective in each denomination under the highest denomination Where no key has been depressed, and the blank stops are effective in each denomination above the highest denomination in which a key has been depressed.

The type unit comprises a series of rotatably mounted type elements, one for each denominawith each type element is a driver, a latch connecting the type element to the driver, a controller for unlatching the latch and a stationary locking member to which the type element is latched when it is unlatched from the driver.

When the keys have been depressed for the characters desired to be printed by the machine, operation of each driver carries its associa ed type element along with it until the controller comes into contact with the first set stop in that denomination, which stop may be either a key step or the blank or zero stop. When the controller contacts with the stop, the type element is unlatched from the driver and latched to the locking member, so that the driver continues its full extent of movement but does not carry the type element any further. Thus the type of difierent characters or denominations are positioned at a printing line in accordance with the keys depressed.

While the platen operating mechanism shown in this machine differs somewhat from that shown in the above application, the platen bars actuate in a similar manner into cooperative engagement with the type positioned at the printing line. The machine prints through a ribbon interposed between the type elements and the paper.

Two separate clutch mechanisms are provided, one to eifect operative connection between a common source of power and the type positioning iii) Iii)

means, including drivers for the type elements and the other to effect operating connection between the source of power and the impression mechanism. One of the clutch mechanisms is ripped by the operator upon depression of a trip bar, whereupon the initial connection of this clutch mechanism with the source of power causes the type element to be positioned at the printing line. This clutch mechanism upon effecting the positioning of the type elements is then operative to effect the tripping of the other clutch mechanism to cause an operating connection between the impression mechanism and the source of power. The first mentioned clutch mechanism is then temporarily disconnected from the power source allowing the type elements to remain at rest at the printing line substantially during the cycle of operation of the impression mechanism. Near the end of the cycle of operation of the impression clutch mechanism, the first clutch mechanism is again connected to the power source so that it may complete its cycle of operation to move the type elements positioned at the printing line back to their initial unset position.

There are, of course, many other features in the machine such as ribbon feeding mechanism, and safety drive connection between the source of power and the type positioning means for the type elements and other parts associated therewith, but the above brief outline will be sufficient for the purpose of aiding in a proper understanding of the detailed description which follows.

The machine comprises a base iii and an upper casing l i connected by means of U-shaped members I2 on each side of the machine and covered by the housings Ha of Figs. 1 and 2. The U- shaped member 62 is best shown in Fig. 13. The opening it between the base and case provides for the insertion in the machine of a sheet, such as a check or a web of connected checks or other commercial instruments which are placed on the top shelf portion of the base in a position relative to the printing line of the machine.

Keyboard stop mechanism The keyboard carried by the upper part of the casing ll comprises a plurality of units of depressible key stems 4e, Figs. 1 and 3. Each key unit, one for each unit of dollars and cents denomination, has a series of nine depressible key stems from 1 to 9 inclusive. The key stems are carried by guide plates forming part of each unit, not entirely shown in this application. As each key is depressed, the lower end of the stem carried by the lower guide plate, projects into the path of an extending portion Mt of a controller actuated by the type positioning means.

Each key unit is provided with a control bar, not shown, which is acted upon by the depression of any key. This control bar carries an extending ear iii which has a position such as shown. in Fig. 3, when any key in that bank has been depressed, and a second or normal position as shown by the dotted lines in Fig. 3, when no key has been depressed in its associated bank of keys. The purpose of each control bar is to control the position of the blank stop I56 and the zero stop 53. The control lever i5l, actuated by the operating mechanism of the machine, is' normally effective to move the blank stop I66 and zero stop list into the path of portion Hit of a controller However, if key is depressed, the ear H! of the control bar is moved to the position shown in Fig. 3, into the path of the counterclockwise movement of the control lever l5! so as to prevent the movement of the lever IN and the Zero stop I53 and blank stop 56 in that unit from moving into the path of the portion H of the controller 34. The Zero and blank stop mechanism is so arranged that all blank stops Hi6 of key units in denominations lower than the highest digit in which a key has been depressed will automatically be prevented from moving into the path of the controller 8d. In the event no key has been depressed in units of denominations lower than the highest digit in which a key has been depressed, the Zero stop will be positioned in the path of the controller 84. The latter arrangement provides for 0 being positioned in all denominations lower than the highest digit set, in the event no other figure is selected.

Type unit The type unit, comprises stationary type members ltd and a series of selectively settable disks 8i having a plurality of type characters 82, and mechanism for positioning the selected type at a printing line, Fig. 3. The printing type char-- acters 82 are provided in each denominational unit of dollars and cents. In each denomination in which numerals are to be printed, there is an assemblage comprising a type disk in carrying the type characters t2, locking member 83 on one side of the type disk, a controller 1 on the opposite side of the type disk, and a driver l IE on the opposite side of the controller from the type disk. All of these elements in various denominations are mounted on the cross shaft 8% which is firmly secured to the side plate 3%. her t t is normally stationary but is rotatable on the shaft fit for the purpose of adjustment. The other elements above mentioned are all mounted for rotation on the shaft and normally do rotate during the setting up of the numbers to be printed.

Each type disk ti, Fig. 3, carries a latch 99 pivoted at 9| and lying on the side of the disk toward he driver 35. The rear end of each latch 26 carries a pin extending lateraliy into the plane of the driver 85 and arranged under predetermined condition to engage a shoulder 93 on the driver 85.

The opposite extending end of latch 9i) carries a pin 95 extending through a large hole 96 in the type disk 8! and projecting to the opposite side of the type disk, into the plane of the locking member 33. This pin 95 is arranged to engage under predetermined condition in one of the notches 98, arranged on a portion of the periphery of the locking member 83, Fig. 3.

Each latch fit has a third extending arm H36 fitting in a notch ii of the controller 23%. Each of the controllers 3 i is provided with an outwardly extending arm i it, the outer end of which is bent laterally as shown in Fig. 3. Each driver 55 has an arm M2 which extends radially outwardly and securely fastened in a bail i it, which is mounted for rotation on the shaft 36.

The bail H3 is provided at one end with gear teeth lit meshing with teeth on a gear segment M5 mounted for rotation on the operating shaft 258 and operated in a manner described below,

under the heading Operating mechanism for the type positioning means.

When the segment H5 is operated in a counterclockwise direction from the position shown in Fig. 3, it turns the bail HS in a clockwise direction. This swings the drivers 85 of all the denominations in a corresponding clockwise di- The locking memrection and, through the latches 98, carries the type disk 8|, likewise in a clockwise direction so long as the type disk 8| remains latched to the drivers 85. When the arm ||0 on any controller 84 is stopped, however, as by hitting the key stem or stop 38a, shown in a depressed position in Fig. 3, or by hitting an advanced zero stop I53 or blank stop I66, then the type disk is unlatched from the driver and latched to the looking member 83 in the manner above described. The yoke H3 and the driver 85 then continue through the rest of their range of movement, but without causing further movement of the type disk 8|. During its further range of movement, the pin 92 on the latch 90 rides on a concentric surface 85a of the driver 85, and holds this latch with the latch pin 95 positively engaged in one of the notches 98 of the locking member 83.

The stationary type characters I34 are pinned in position to the shaft 86, and serve for the printing of any desired subject matter, such as the word and between the units of dollars and tens of cents denomination, and a type character such as the word cents to the right of the units of cents denomination. A shifting type bar bearing characters such as the word exactly and the :3 sign may be provided and adapted to be shifted adjacent the highest digit type selectively positioned at the printing line of the machine.

The inking ribbon 418, arranged to pass between the type positioned at the printing line and the check A placed in printing position, is carried by the spool 450 and 415 mounted in the casing N, Fig. 3. The removable supply spool 458 has studs 45| at each end, carried in the openings of the brackets 452 secured on each of the side plates 38. Latches 468 pivoted to brackets 452 normally retain the studs 45I, on the spool 450, in the openings of the brackets 452 and hold the ribbon spool in position.

The rear winding spool 416 having studs 418a on each side, is carried by the removable plates 480 screwed to the side plates 30. A ratchet member 483 fixed at one side of the spool 416 is adapted to be engaged by the feed pawl 485, pivoted to the ribbon actuating member 481, Fig. 3. A spring 488 connected to the pawl 485 and a projecting arm of the member 481, normally retains the pawl in engagement with the teeth of the ratchet member 483. The ribbon actuating member 481 is mounted for rotation about an axis in alinement with the axis of the spool 416. The member 481 has an upwardly extending arm 498, having a forked upper end which is engaged by a pin 49| on the operating lever 343. Each time the operating lever 343 is actuated, the movement of the member 481 in one direction will cause the feed dog 485 engaging the ratchet member 483, to advance the ribbon. The retaining dog 495 tends to hold the ratchet 483 at rest when the member 481 and the feed dog 485 are moved in a reverse direction.

Impression mechanism The impression mechanism including a series of platen bars 5| adapted to be successively moved into cooperative engagement with the type positioned at the printing line is located in the base H), Figs. 3 and 4. Each of the platen bars 5| is adjustably mounted in the platen holders 52 loosely carried on the cross rod 53 supported by the base plates 50. Spacing collars 53a are provided on a rod 53 to retain the holders 52 in proper spaced relation. The ends of the holders 52 opposite to that which is carried by rod 53 have hardened balls 54 mounted therein.

A stationary cross rod 55 supports a series of platen arms 56 adapted to be operatively con nected to the holders 52. Extending portions 51 of the arms 56 carry inserts 58 normally engaging the balls 54 mounted in the holders 52. Downwardly portions of the platen arms 56 carry the platen rollers 59.

A driven shaft 63 supported by the base plates 50 has fixed thereto the platen cams 68, 5| and 62, each in a plane with one of the platen rollers 59, Figs. 3 and 4. The platen cams 68, 6| and 82 are pinned on the shaft 83 in angular relation to one another so as to provide progressive action to the platen arms 56, the holders 52 and the platen bars 5|. This arrangement permits the platen bars 5| to progressively move into cooperative engagement with the type characters at the printing line of the machine to produce an imprint thereof on a sheet A positioned between the type characters and platen bars. The provision of a series of platen bars adapted to be progressively actuated into engagement with line type characters requires a small amount of power as compared to producing an imprint of the same line of type with a single platen bar.

The springs 64 carried at one end by the clips 65 supported by the holders 52, and at the other end by the cross rod 65, tends to normally hold the platen holders 52 in a down position as shown in Fig. 3. These springs 84 also through the holder 52 retain the platen rollers 59 in contact with the platen iii to 52 inclusive. the counter-clockwise rotation of shaft 83 the platen cams move the platen holders 52 upward against the tension of the springs 64. The driven shaft 63 is operated in a manner described below under the heading Operating means for the impression mechanism.

Trip mechanism The operator having placed a sheet such as a check or other instrument A in printing position, through the opening l3 between the casing H and base l0, and against the adjustable stop 6| Fig. 3, and having set up the characters desired on the keys 40 of the keyboard, depresses the trip bar Ilia.

The trip bar |8a, Figs. 13 and 14, is mounted for depression on the studs 68 and 10, carried by the bell-crank levers 61 and 68 supported on the side plates 38 by the studs 1| and 12. A link 13 connects the levers 61 and 68 to provide equal movement of the levers regardless of how the operator depresses the trip bar its, that is, the opdepressing the trip bar would tend to move one side or the other of the bar down ahead of the other. A spring 14 attached at one end to the side plate 38 and has its other end carried by a stud on the lever 88. This spring 14 normally retains the trip bar i 8a raised and upon depression of the bar, its associated parts operate against the tension of the spring.

A sliding bar 15 having elongated openings 15 is carried on the side plate 38 by the studs "5?, Figs. 13 and 14. The lower end of the bar 15 has a laterally formed portion 18 adapted to engage a stud 19 carried by the arm 88 pinned on a rod 8i. The rod 8| is supported at its end nearest the side plate 30 in the wall 31 of the U-shaped memher 2, and the opposite end of the rod passes through the wall 31 and has an arm 288 pinned Upon thereon adjacent the outer wall of the member, Figs. 13 and 14. A collar 2M fixed to the rod 8! adjacent the inner side of the wall 31 serves to prevent lateral shifting of the rod.

A rod 202 supported in the lower section of the member 12 has an arm 223 pinned to the end of the rod projecting beyond the outer surface of the wall 31, and a collar 2% fixed adjacent the inner side of the wall. A link 255 connects the arm 2% carried by the rod BI and the arm 203 carried by the rod 222. The other end of the rod 202 is supported in that portion of the U-shaped member i2 adjacent the base plate 50. Another arm 2% fixed to the rod 222 has pivoted thereto at 2%, a trip finger 258. The trip finger 258 is provided with a stepped end portion 209 which is normally held in engagement with the stud 2 it extending laterally from the rocker arm M2 by the spring 2l3. The rocker arm 212 is fixed to the rock shaft 2M, Figs. 5 and 14.

It will now be seen that'when the operator depresses the trip bar in, the arms 51 and 68 will move in a counter-clockwise direction against the tension of the spring F4. The stud Hi carried by the arm E58 will move into engagement with the upper end of the sliding bar 15 and cause the bar to move downward on the studs 11 through the elongated openings it. Upon the downward movement of the sliding 'bar 15, the laterally formed portion 18 thereof will engage the stud l9 carried by the arm 89 fixed to the rod 8! and move the rod 8! in a clockwise direction. The arm 2% fixed to the rod 8| will thereupon move in a clockwise direction and through the link 2G5 and the arm 2% fixed to the rod 202 cause the rod 252 and the arm 2% fixed thereon, to move in a counter-clockwise direction from the position shown in Fig. 14. The counter-clockwise move ment of the rod 202 and the arm 2% will cause the trip finger to engage the stud 2 I of the rocker arm 24 E and move the rock shaft 2l4 in a clockwise direction from the full line position to the dotted line position shown in Fig. 14. Therefore, the depression of the trip bar illa through its connections above described causes the clockwise movement of the rock shaft 2l4 to initiate the operation of the machine as described under the following heading.

Operating mechanism for the type positioning means The rock shaft 2l4, Figs. 5, 6 and 14 supported in the base plates 50, is moved as above described in a clockwise direction upon the depression of the trip bar Hla by the operator.

As shown in Figs. and 6, the clutch latch 2l5 is pinned on the rock shaft 2|4, and normally engages a laterally extending lug 2I6 of a clutch stop arm 2l'l pivoted at 2H3 to a clutch disc 2&9 rigid on the clutch shaft 220.

The stop arm 2!! has a notch 22!, engaged by the projection 222 of the clutch dog 223, pivotally carried by the stud 224 on the clutch disc 2I9. The clutch dog 223 has a portion 225 adapted to engage the constantly rotating notched drive member 22?. The stud 22% carried by the clutch disc 2!!) limits the outward movement of the clutch dog 223. A spring 228 having one end fastened to the stud 229 carried by the stop arm 2|! and. the other end to a stud 232 carried by the disc 2ft tends to move the clutch dog 223 into engagement with the notched drive member 221 However, the latch plate 2!! engaging the lug 2I6 of the stop arm 21? normally holds the clutch dog from engagement with the drive member 22! against the tension of the spring 228.

The periphery of the clutch disc 2 l 9 is provided with notched sections 23! and 232. As shown in Fig. 6, when the clutch disc 2l9 is in its normal or rest position, the notched section 23! is engaged by a roller 233 carried by the formed member 23 loose on the rock shaft 214. The member 23 5 is substantially in the form of a yoke and has an extending portion 235, Figs. 5 and 6, carrying the end of a spring 236. The tension of the spring 235 forces the roller 233 into the notch 23! of the disc 2H9. The spring actuated roller 233 acts to prevent the rebound of the clutch disc when it is stopped in its cycle of operation, and also holds the lug 2l6 of the stop dog 21'! in proper engagement with the latch plate 2l5 when the parts are in normal position shown in Fig. 6.

The notched driving member 221 loose on the clutch shaft 222 has a driving connection with the gear 232 also loose on the shaft 220, Figs. 4 and 5. The gear 231 meshes with a gear 238 pinned to the drive shaft 239 which is continuously rotated by the gears of the worm housing 240 driven by a source of power, such as a motor, not shown in the drawings.

Upon the clockwise rotation of the rock shaft 2 M, the latch 2H5 moves out of engagement with the extending lug MB of clutch stop arm 2H,

whereupon, the spring 228 rocks the stop arm 2]! about its pivot 2H8 to move the portion 225 of the clutch dog 223 into engagement with the rotating notched drive member 221. Upon engagement of the clutch dog 223 with the rotating drive member 221, it will be seen that a driving connection will be made between the source of power and the clutch shaft 220, and as long as the clutch dog 223 is engaged with the drive member 22?, the clutch shaft 220 will be rotated therewith.

The clutch shaft 22! extends through the base plate 52 at the right side of the machine and its end is supported by the U-shaped member 12. This extending part of the shaft 220 has a gear 24f pinned thereto which meshes with a gear 242 rigid on the stub shaft 243, Figs. 4, 11 and 13. The stub shaft 243 is supported by the U-shaped member i2.

A crank arm 244 is pinned on the stub shaft 243, adjacent the outer side of the wall of the U-shaped member i2, Figs. 11 and 13. The stud 225 on the crank arm 244 carries one end of the crank link 245, the other end of the crank link is carried by the stud 24? -on the actuating arm 248 loose on the reduced end of the operating shaft 256. A washer and the screw 249 retain the arm 228 on the end of the shaft 250.

The operating shaft 25% is arranged in two separate sections in order to provide convenient assembly of certain units of the machine. One section of the operating shaft 258 is supported in the U-shaped member [2, Fig. 13, and the other section is supported by the side plates 32 of the upper casing i i. The two sections of the operating shaft 250 are normally connected to operate as an integral unit. The member 25! pinned to one section of the operating shaft 250, carries an eccentricstud 252 having a prismatic lateral extension 253, engaging the forked portion of the arm 254, pinned to the other section of the operating arm 25b. The eccentric stud 252 provides for radial adjustment between the two sections of the operating shaft 252 for the purpose of timing the machine.

A safety drive connection is provided between til the clutch shaft 228 and the operating shaft 258, in order that the parts associated with and actuated by the operating shaft 258 will not be strained or broken in the event the actuation of the shaft is retarded as it is driven by the clutch shaft 220 through the

gear

224 and 24!, and the crank arm mechanism.

The actuating arm 248, Figs. 11 and 13, carried loosely on the reduced portion of the operating shaft 250, and having the pin 241 to which is connected the crank link 246, has the roller arm 255 pivoted thereto on the stud 253. The roller 251 carried by the roller arm 255 normally engages a notch 258 of the drive member 259 pinned to the operating shaft 256. A spring 266 has one end carried by a hook portion formed on the actuating arm 248, and the other end fastened to a stud 26| carried by the roller arm 255. Therefore, it will be seen that when the actuating arm 248 is moved in a counter-clockwise direction by the crank link 246, the roller arm 255 will move therewith. The spring 260 has enough tension to retain the roller 251 in the notch 253 of the drive member 259 under normal operating conditions, so that when the actuating arm 248 moves in a counter-clockwise direction the drive member 259 will move therewith and cause the operating shaft 250 to rotate in counter-clockwise direction from the position shown in Fig. 11.

If in the event the operating shaft 250 is held from movement because of the mechanism in the casing H for some reason not functioning properly, the safety drive connection becomes effective to prevent damage to some part of the mechanism. Fig. 12, discloses substantially the action of the various parts when the operating shaft 250 has been retarded from rotation. The drive member 259 fixed to the section 258 of the operating shaft has been held from movement, and upon the normal counter-clockwise movement of the crank link 246 and the actuating arm 248, the roller 251 will be moved out of the notch 258 of the drive member 259, against the tension of the spring 260. While the tension of the spring 26!] is sufiicient to retain driving connection between the parts above described, any excess power required to rotate the operating shaft 250 would be sufiicient to overcome the spring and allow the safety driven connection to become effective.

A lever 343, Fig. 3, is loosely mounted on the shaft I25, supported by the side plates 30. A link 345 connects the lever 343 and the segment H5, carried on the operating shaft 256. A cam 34!! fast to the shaft 250 is in the plane of a roller 342 carried on the lever 343. Therefore, it will be seen that upon the counter-clockwise rotation of the operating shaft 258, the cam 340 will cause the actuation of the lever 343, and through the link connection 345, the segment H5 will be rotated in a counter-clockwise direction. The counter-clockwise movement of segment H5 will rotate the segmental portion H4 of the yoke H3 in a clockwise direction, to move the drivers and the type members 8! and in turn position the type character 82 at the printing line in accordance with the setting of the keys 40.

A cam 263 is pinned to the clutch shaft 220 adjacent the base plate 50 on the right side of the machine, Figs. 3, 4 and 5. The major surface of the cam 263 is concentric with the shaft 220 and this concentric surface of the cam is normally engaged by a roller 265 carried by the arm 266 mounted on a bushing 261 loose on the rock shaft H4. The normal position of the cam 263 and arm 266 is best shown in Fig. 3. A rise 264 is provided on the cam 263 adapted to become effective on the roller 265 after the clutch shaft has been rotated almost degrees.

An impression clutch latch 268 is rigidly mounted on the other end of the bushing 261, and when the roller 265 carried by the arm 266 is engaged by the concentric surface of the cam 263, the latch 268 normally engages the lug 269 of the impression clutch stop arm 26%. As the clutch shaft 226 is rotated in a clockwise direction by the engagement of the clutch dog 223 with the drive member 221, the earn 263 pinned to the shaft 228 will rotate therewith. After the clutch shaft 226 and cam 263 has moved almost 180 degrees, to the position shown in Fig. 9, the rise 264 of the cam will effect movement of the arm 266 in a clockwise direction. The clockwise movement of the arm 266 carried on the bushing 261 will cause the latch 268 to release the impression clutch stop arm 269a so as the impression clutch mechanism as described under the head Operating means for the impression mechanism.

A second latch 215a, carried by the collar 296, supported on the cross rod 291, Figs. 5, 6 and 7, normally lies in the path of the lug 216 of the clutch stop arm 2|1. As the clutch disc 219 rotates in a clockwise direction, as previously described with the clutch dog 223 in engagement with the drive member 221, the lug 2l6 of the clutch arm 2i1 will move into contact with the latch 2i5a, after the clutch shaft 220 rotates approximately 180 degrees, that is, after the drivers 85 have been effective in positioning the type character 82 at the printing line and the latch 268 has released the impression clutch stop arm 269. The contact of the latch 215a with the lug 216 of the clutch stop arm 2E1 will cause the stop arm to move against the tension of the spring 228 and move the clutch dog 223 out of engagement with the drive member 221, as shown best in Fig. 7. The clutch disc 2l9, then being disconnected from the drive member 221 will temporarily remain in a position of rest after only completing a part of its cycle of operation. Inasmuch as the clutch disc 2!!! is pinned to the clutch shaft 226, the shaft 220 will also remain at rest as long as the latch 215a holds the clutch dog 223 out of engagement with the notches of the drive element 221.

The clutch disc 2|9 being rotated clockwise approximately 180 degrees as above described. causes the section 232 of the disc to be in a position to be engaged by the roller 233, so as to prevent backlash of the ment with the drive member 228. The crank arm 244 fixed to the stub 243 which is driven by the clutch shaft 220, through the approximately 180 degrees. The substantially harmonic motion given by the crank arm arrangement provides a comparatively slow initial movement to the operating shaft 250. However, as the crank arm rotates, the speed of the shaft is accelerated, but as the arm nears the completion of its 180 degree movement the speed of the shaft is decelerated. This variable speed of rotation of the operating H3 and other operating parts for positioning the type 82 and feeding the ink ribbon, to move slowly at the beginning and at the end of their movement in either direction, so as to eliminate sudden shock and provide smooth action thereto.

to effect operation of disc 219, and to hold the shaft 258, causes the yoke Operating means for the impression mechanism The clutch mechanism for connecting the impression mechanism with the source of power is of substantially the same structure as the clutch mechanism above described for effecting the drive connection of type positioning means with the power source.

The impression clutch latch 268 operative with the arm 2'33 and controlled by the cam 263 fixed to the clutch shaft 229, normally engages the laterally extending lug 269 of the clutch stop arm 269a, Fig. 8. The stop arm 269a has a notch 2W, engaged by the projection 21! of the clutch dog 212, pivotally carried by the stud 213 on the clutch disc 2M, loose on the clutch shaft 220. The clutch dog 212 has a portion 2'55 adapted to engage another constantly rotating notched drive element 2%. The stud 21'! carried by the clutch disc 2M limits the outward movement of the clutch dog 2'i2. A tension spring 218 connected at one end to a stud 2'59 on the clutch disc EM, and at the other end to the clutch stop arm 26%, tends to move the portion 215 of the clutch dog into engagement with the drive element 216. However, the latch plate 268 engaging the lug 259 of the stop arm 269a, normally holds the clutch dog against the tension of the spring 2"!8 from engagement with the drive member 216.

The notched drive element Z'lii, loose on clutch shaft 220, is operatively connected with the gear 22 also free on the shaft 22d, Figs. 4:, 5 and 9. The gear Eli] meshes with a gear 280 pinned on the drive shaft 239 which is continuously rotated by the source of power, as previously set forth.

Upon the initial clockwise rotation of the clutch shaft 228, with cam 2E3 rotating therewith, the rise portion 2'54 of the cam will engage the rollers carried by the arm 2% after the shaft has rotated approximately 180 degrees. The clockwise movement given the arm 2% by the cam 263 will cause the latch 268 to move out of engagement with the lug 269 of the impression clutch stop arm 26%. The latch 268 being moved out of engagement with the lug 269 permits the tension of the spring filil to rock the stop arm 2690 which in turn rocks the clutch dog 212 about the pivot 213, and allows the portion T5 of the clutch dog 2J2 to engage the constantly rotating notches of the drive element 216 as shown in Fig. 9. The engagement of the clutch dog 212, carried by the clutch disc 2%, with the rotating drive element, causes the disc 214 to rotate in a clockwise direction.

The spring 28E connected to the yoke member 282 carrying the roller 284 normally tends to retain the roller 284 in the notch 285 formed in the clutch disc 2'85, Fig. 8. When the clutch disc 215 is rotated the roller engages the concentric portion of the disc. As the clutch disc completes its cycle of operation the roller again enters the notch and serves to prevent backlash of the disc and to retain lug 269 in engagement with latch 268.

A rebound yoke 28%, carried by the stud 281, on the clutch disc H5, has a portion 238 adapted also to engage the notches of the constantly driving element 2%. When the impression clutch disc 215 is in the normal position shown in Fig. 8, the extending portion 289 of the rebound yoke 286, engages the platen cam shaft 63, and holds the portion 288 of the yoke out of engagement with the notches of the drive element 216, against the tension of a spring 296. However, when the clutch disc 215 is rotated slightly, the portion 289 of the yoke 286 moves away from the shaft 63,

and the portion 288 of the yoke is moved into engagement with the drive element 216 by the spring 290.

This rebound yoke is a preventive device serving to eliminate any backlash of the impression clutch mechanism in the event any sudden shocks are given thereto in the operation of the machine. A gear 29! carried by the bushing 292 loose on the clutch shaft 229, is pinned to the clutch disc 2M, Figs. 4 and 5. The gear 253i meshes with a gear 293 pinned to the platen shaft 83. It will now be clear that when the impression clutch 2% is connected with the drive element 21%, the gear 291 will rotate with the disc. The impression clutch mechanism actuates through a complete cycle of operation once it is tripped in the manner described. Therefore, the rotation of the gears 29i and 293 will cause the platen shaft 63 to rotate and the platen cams es. 6i, and to progressively effect cooperative engagement of the platen bars 5i with the type positioned at the printing line.

A cam 294 carried by the bushing 232 loose on the clutch shaft 220, Figs. 4, 5 and 10, is in a plane with a roller arm 295, carried by the collar 2%, on the cross rod 297. The roller arm 2% has a roller 2&9 held against the cam 2% by the spring sec. The normal position of the cam is shown in Fig. 10, having the concentric portion engaged by the roller 299. Upon the clockwise rotation of the impression clutch disc 21d and gear 29!, the rise 3th of the cam 294 will engage the roller 2% near the end of the cycle of operation of the impression clutch. The cam (29% will cause the roller arm 295 carried by the collar to move clockwise. The clockwise movement of the roller arm 295 will move the latch Elsa also carried by the collar 2%.

Return operation of the type positioning means As previously described the type positioning clutch mechanism after having positioned the desired type characters at the printing line of the machine is temporarily disengaged from the driving means at approximately an intermediate part of its cycle of operation. The latch 265a having engaged the lug ZIB of the stop arm 2H, has held the clutch dog 223 out of engagement with the continuous drive element 22'? during substantially the major part of the cycle of operation of the impression clutch mechanism. However, near the end of the cycle of operation of the impression clutch mechanism the cam 29% causes the roller arm 2% and the latch ZlEa to move in a clockwise direction.

The latch 2 We in its clockwise movement moves out of the path of the lug 2 it of the clutch stop arm 2H, whereupon the spring 228, moves the arm 2 11 about its pivot 2 l8 and causes the clutch dog 223 to again engage the notches of the drive member 221. Upon engagement of the dog 223 with the driving member 221, the clutch disc Z49 pinned to the clutch shaft 22% is rotated in a clockwise direction to complete its cycle of operation.

The continued rotation of the clutch shaft 229, imparted by the clutch disc 2m, in the manner just described, causes the continued movement of the crank arm 2&4 carried on the stub shaft 243. The crank arm 244 in its initial motion, actuates the operating shaft 258 in a counterclockwise direction to set the type at the printing line. The initial motion of the crank arm 2, caused it to rotate slightly past dead center so that the continued motion now imparted thereto by the re-engagement of the type positioning clutch with the drive means, causes the crank link 248 to move in a downward direction. The downward movement of the crank link 2 56 causes the arm 248 through the safety drive connection, to rotate the operating shaft 250 in a clock wise direction. The clockwise rotation of the operating shaft 25!] rotates the cam 340 to move the lever 343, and through the link 3 35, rotates the segment H5 in a clockwise direction.

with to effect movement of the type members 8! to their normal position shown in Fig. 3. Means described in the above mentioned application is provided for releasing any key 48 depressed by the operator.

The trip bar Illa having been released by the operator after initially tripping the machine, is returned to normal position by the spring 74. The spring 2| 3 moves the lever 2B8 away from the rock shaft M4. on the rock shaft 2M, adjacent the left hand base plate 50, carries a stud 303. The tension spring 354, having one end carried by the stud 303, and the other end by the stud 335 in the base plate 50, normally tends to move the arm and the rock shaft 2 M in a counter-clockwise direction, whereupon the movement of the lever 208 away from the stud 2h! on the rocker arm 2 l2 allows a limited rotation of the rock shaft 2 ii. The counter-clockwise movement of the rock shaft 2M causes the latch 255 to be returned to normal position in the path of the lug 2 it of the type positioning clutch stop arm 21?.

The latch 2l5 being positioned in the path of the lug ZIB as the disc 2l9 carrying the stop arm 1H1, nears its complete cycle of operation, engages the lug H8 and causes the clutch stop 223 to be withdrawn from the notch of the drive member 221. whereupon the clutch disc ZIS is held from further rotation, and the roller 233 engages the notch 21 of the disc to retain the clutch parts in the normal position of rest as shown in Fig. 6.

The invention is not to be limited to or by details of construction of the particular embodiment thereof illustrated by the drawings, as varione other forms of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

What is claimed is:

1. In a machine of the class described, the combination of independent driven mechanisms, a power means, and a separate clutch mechanism for each of the driven mechanisms to connect said driven mechanisms with the power means, said clutching mechanisms each including a notched driving element and a rotatable member supporting a clutch dog and a clutch control stop arm, said stop arms being operatively conwith said driving elements, control latches normally holding each of the stop arms to prevent such engagement, manual means for displacing from engagement with one of the stop arms for effecting the connection of one of said clutch mechanisms with the power means, and means controlled solely by said clutch mechanism connected with said power means for displacing another of said control latches from engagement with its stop arm to permit its associated clutch dog to engage its notched driv 1g element for eflecting the connection oi the other of said clutch mechanisms with the power means.

2. In a machine or the class described, the combination or" independent driven mechanisms. a power means, and a separate clutch mechanism engagement with its stop arm control latch to permit its associated clutch dog to engage a notched driving element for effecting the connec tion of the other of said clutch mechanisms with supporting member to displace its associated clutch dog from the driving element, means for moving said stop latch out of engagement with said first mentioned stop arm to permit its clutch dog to again engage its notched driving element, and means actuated by said other driven mechanism in its cycle of operation for moving said stop latch out of engagement with said first menthe connection tioned stop arm to permit its clutch dog to again engage its notched driving element.

4. In a machine of the class described, the

combination of independent driven mechanisms,

a power means, and a separate clutch mechanism for each of the driven mechanisms to connect said driven mechanisms with the power means, said clutching mechanisms each including a notched driving element and a rotatable disc supporting a clutch dog and a control stop arm, said control stop arms being operatively connected with said clutch dogs, resilient means tending to cause engagement of the clutch dogs with said driving elements, control latches normally holding each of the stop arms to prevent such engagement, manual means for displacing one of said control latches from engagement with one of the stop arms for effecting the connection of one of said clutch mechanisms with the power means, means actuated solely by said clutch mechanism connected with said power means for displacing another of said control latches from engagement with its stop arm to permit its associated clutch dog to engage the other notched driving element to effect the connection of the other of said clutch mechanisms with the power means, a stop latch independent of said control latches and normally lying in the path of the first mentioned stop arm, said stop latch adapted to engage said first mentioned stop arm after a predetermined movement of its supporting memher to displace its associated clutch dog from its driving element, means for moving said stop latch out of engagement with said first mentioned stop arm to permit the clutch dog to again engage its notched driving element, and means actuated by said other driven mechanism in its cycle of operation for moving said stop latch out of engagement with said first mentioned stop arm to permit its clutch dog to again engage its notched driving element, said control latches adapted to engage said stop arms to efiect the disengagement of said clutch dogs from their driving members as each clutching mechanism completes a single revolution to complete the cycles of operation of said driven mechanisms.

5. In a machine or" the class described, the combination of independent driven mechanisms, a power means, and a separate clutch mechanism for each of the driven mechanisms to connect said driven mechanisms with the power means, said clutching mechanisms each including a notched driving element and a rotatable disc, a clutch shaft, said driving elements and said discs supported on said clutch shaft, each of said discs pivotally supporting a clutch dog and a clutch control stop arm, said stop arms having lateral offset portions and the arms being operatively connected with said clutch dogs, spring means tending to cause engagement of said clutch dogs with said notched driving elements, a cross rod, separate control latch members carried by said cross rod and normally engaging said offset portions of said stop arms to prevent engager ment of said clutch dogs with their driving element-s, a manual trip bar for moving one of said latch members to inoperative position out of engagement with the offset portion of its stop arm to permit said spring means to move one of said clutch dogs into engagement with one of the notched driving elements to connect one of the driven mechanisms with the power means, and a cam controlled means actuated by the last mentioned driven mechanism for automatically displacing the other of said control latches from engagement with the offset portion of its respective stop arm to permit engagement of the other clutch dog with the other notched driving element to connect the other driven mechanism with the power means.

6. In a machine of the class described, the combination of a power means, separate driven mechanisms, clutch mechanisms between said power means and each of said driven mechanisms, said clutching mechanisms each including a notched driving element and a rotatable disc, a clutch shaft, said notched driving elements and said discs supported on said clutch shaft, each or" said discs pivotally supporting a clutch dog and a clutch control stop arm, said stop arms each having a lateral offset portion and the arms being operatively connected with said clutch dogs to control their movement, spring means tending to cause engagement of said clutch dogs with said notched driving elements, a cross rod, a pair of control latches supported on said cross rod and normally engaging said offset portions of said stop arms to hold said clutch dogs out of engagement with the notched driving elements, a trip bar for displacing one of said control latches from engagement with the offset portion of oneof the stop arms so as to permit the tension of the spring means to move one of said clutch dogs into engagement with its notched driving element to connect one of the driven mechanisms with the power means, a cam controlled means actuated by the last mentioned driven mechanism for automatically displacing the other of said control latches from engagement with the offset portion of its respective stop arm to permit engagement of the other clutch dog with the other notched driving ele ment to connect the other driven mechanism with the power means, a cross shaft, latch means independent of said control latches and pivoted on said cross shaft, said latch means including a roller arm and a stop element, said stop element normally lying in the path of said first mentioned stop arm to disconnect said first mentioned driven mechanism from the power means, and a cam actuated with said other driven mechanism, said roller arm adapted to be moved by said cam to withdraw said stop element from the engagement with said first mentioned stop arm whereby the first mentioned driven mechanism will again be connected to the power means to complete its cycle of operation.

7. In a machine of the class described, the combination of a driven mechanism for moving a plurality of type to and from a printing line of the machine, a driven mechanism for moving an impression means into cooperation with the type positioned at the printing line, a power means, a driver shaft connected with said power means, a pair of driving gears fixed on said driver shaft, a clutch shaft arranged parallel to the driver shaft, a pair of driven gears loose on said clutch shaft and meshing with said driving gears, and clutching mechanisms for connecting said driven mechanisms with the power means, said clutch mechanisms each including a notched driven member and a clutch disc supporting a clutch dog means for connecting the disc with the driven member, said notched driven members arranged loose on said clutch shaft and operatively connected with said driven gears, one of said clutch discs fixed on said clutch shaft and the other disc arranged loose on the clutch shaft, a gear rigid with said loose disc, a driven shaft having a gear fixed thereon and meshing with the gear on said loose clutch disc, said driven shaft operative to actuate the driven mechanism for said impression means, means actuated by said clutch shaft for operating said driven mechanism for moving the type, resilient means tending to cause engagement of the said clutch dogs with the notched driven members, control latches normally holding the clutch dog means to prevent such engagement, manual means for displacing one of the control latches to efiect the engagement of the clutch dog on one of the clutch discs with its notched driven members to connect the driven mechanism for moving the type with the power means, and means actuated by said driven mechanism connected with the power means for displacing the other control latch to effect the engagement of the clutch dog on the other clutch disc with its oriven member to connect the driven mechanism for the impression mechanism with the power means.

8. In a machine of the class described, the combination of independent driven mechanisms, a power means, a driver shaft connected with said power means, a pair of driving gears fixed on said driver shaft, a clutch shaft arranged parallel to the driver shaft, a pair of driven gears loose on said clutch shaft and meshing with said driving gears, and clutching mechanisms for connecting said driven mechanisms with the power means, said clutch mechanisms each including a notched driven member and a clutch disc supporting clutch dog means for connecting the disc with the driven member, said notched driven members arranged loose on said clutch shaft and operatively connected with said driven gears, one of said clutch discs fixed on said clutch shaft and the other disc arranged loose on the clutch shaft, a gear rigid with said loose disc, a driven shaft arranged parallel to said clutch shaft, a fixed on said driven shaft and meshing with the gear rigid on the loose clutch disc, said driven shaft operative to actuate one of said driven mechanisms, means actuated by said clutch shaft for operating said other driven mechanism, manual means to effect the engagement of the clutch dog on the fixed clutch disc with its notched driven member to connect the clutch shaft with the power means, means actuated by clutch shaft to effect the engagement of the clutch dog on the loose clutch disc with its notched driven member to connect the driven shaft with the power means, and means to disengage said clutch dogs from their driven members as each clutch disc completes a single revolution to complete the cycles of operation of said driven mechanisms.

9. In a machine of the class described, the combination of independent driven mechanisms, at power means, a driver shaft connected with said power means, a pair of driving gears fixed on said driver shaft, a clutch shaft arranged parallel to the driver shaft, a pair of driven gears loose on said clutch shaft and meshing with said driving gears, and clutching mechanisms for connecting said driven mechanisms with the power means, said clutch mechanisms each including a notched driven member and a clutch disc supporting clutch dog means for connecting the disc with the driven member, said notched driven members arranged loose on said clutch shaft and operatively connected with said driven gears, one of said clutch discs fixed on said clutch shaft and the other disc arranged loose on the clutch shaft, a gear rigid with said loose disc, a driven shaft having a gear fixed thereon and meshing with the gear on said loose clutch disc, said driven shaft operative to actuate one of said driven mechanisms, means actuated by said clutch shaft for operating said other driven mechanism, resilient means tending to cause engagement of the said clutch dogs with the notched driven members, control latches normally holding said clutch dog means to prevent such engagement, manual means for displacing one 01' the control latches to effect the engagement of the clutch dog on the fixed clutch disc with its notched driven member to connect the clutch shaft with the power means, and means actuated by said clutch shaft to displace the other control latch to effect the engagement of the clutch dog on the loose clutch disc with its notched driven member to connect the driven shaft with the power means.

10. In a machine of the class described, the combination of independent driven mechanisms, at power means, a driver shaft connected with said power means, a pair of driving gears fixed on said driver shaft, a clutch shaft arranged parallel to he driver shaft, a pair of driven gears loose on said clutch shaft and meshing with said driving gears, and clutching mechanisms for connecting said driven mechanisms with the power means, said clutch mechanisms each including a notched driven member and a clutch disc supporting clutch dog means for connecting the disc with the driven member, said notched driven members arranged loose on said clutch shaft and operatively connected with said driven gears, one said clutch discs fixed on said clutch shaft and the other disc arranged loose on the clutch shaft, a gear rigid with said loose disc, a driven shaft having a gear fixed thereon and meshing with the gear on the said loose clutch disc, said driven shaft operative to actuate one of said driven mechanisms, means actuated by said clutch shaft for operating another of said driven mechanisms, resilient means tending to cause engagement of the said clutch dogs with the notched driven members, control latches normally holding said clutch dog means to prevent such engagement, manual means for displacing one of the control latches to effect the engagement of the clutch dog on the fixed clutch disc with its notched driven member to connect the clutch shaft with the power means, means actuated by said clutch shaft to displace the other control latch to effect the engagement of the clutch dog on the loose clutch disc with its notched driven member to connect the driven shaft with the power means, a stop latch independent of said control latches for disconnecting the clutch dog on the fixed clutch disc from its driven member and means actuated with said driven shaft for displacing said stop latch to permit the re-connection of the clutch dog on the fixed clutch disc with its driven member, said control latches effective to disengage said clutch dogs from their driven members as each clutch disc completes a single revolution to complete the cycles of operation of said driven mechanisms.

WALTER B. PAYNE.