US1180819A

US1180819A - Printing-machine.

Info

Publication number: US1180819A
Application number: US1103915A
Authority: US
Inventors: Walter W Briggs
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-02-27
Filing date: 1915-02-27
Publication date: 1916-04-25
Anticipated expiration: 1933-04-25

Description

W. W. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB. 21. m5.

1, 180,81 9. Patented Apr. 25, 1916.

9 SHEETS-SHEET I.

Law

WITNESSES: IN VE IV TOR ,4 7TORNEYS W. W. BRIGGS.

PRINTING MACHINE.

APPLICATIQN FILED FEB. 21. 1915.

l/Vl/ENTOR Wa/fer W .Br/ggs WITNESSES:

Patented Apr. 25, 1916.

9 SHEETSSHEET 2.

W. W. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB. 27. 1915.

1 1 80,8 1 9 Patented Apr. 25, 1916.

9 SHEETS-SHEET 4- WITNESSES: l/WE/VTOI? A TTOH/VEYS THE COLUMBIA PLANOGRAPH cu., WASHINQTON, D. c.

W. W. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB.2?. 1915.

Patented Apl 25, 1916 9 SHEETSSHEET 5.

WITNESSES. l/VVE/I/TOR Wa/fe/ W .Bk/kgs A TTOR/VfIS W. W. BRIGGS.

PRINTING MACHINE.-

APPLICATION FILED FEB.27. 1915.

Patented Apr. 25, 1916.

9 SHEETS-SHEET 6.

wlrlvssss:

l/VI/E/VTOR Wa/fer W Br/ygs LX WA TTOHA/EYS W. W. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB.2Z,1915.

m 5 mm M m 9 m a M. W F N R llllllllll a I I I WITNESSES.

-w. w. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB. 27, I915- I Patented Apr. 25, 1916.

9 SHEETS-SHEET 8.

h ill.

. WITNESSES:

W. W. BRIGGS.

PRINTING MACHINE.

APPLICATION FILED FEB-21, 191.5.

1 1 80,8 1 9 Patented Apr. 25, 1916.

9 SHEETS-SHEET 9.

WITNESSES: INI/ENTOR I Wo/fer M4 .Br/ygs 4% W W m A TTORNEYS THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. c

WALTER W. BRIGGS, 0F KALAMAZOO, MICHIGAN.

PRINTING-MACHINE.

Application filed February 27 1915.

To all "whom it may concern:

Be it known that I, WALTER W. BRIGGS, a citizen of the United States, residing at Kalamazoo, Michigan, have invented certain new and useful Improvements in Printing-Machines, of which the following is a specification.

This invention relates to improvements in printing machines.

The main objects of this invention are: First, to provide an improved printing machine which is easily operated. Second, to provide in a printing machine an improved timing mechanism which is accurate and easily adjusted. Third, to provide in a printing machine an improved switch mechanism. Fourth, to provide in a printing machine an improved lamp switch mechanism which is automatically controlled by the opening and closing of the platen. Fifth, to provide in a printing machine an improved platen.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a plan view of a structure embodying the features of my invention. Fig. II is a horizontal section on a line corresponding to line 2-2 of Fig. III. Fig. III is a vertical section on a line corresponding to line 33 of Figs. I, IV and X. Fig. IV is a horizontal section on a line corresponding to line .44 of Fig. III. Fig. V is a detail vertical section corresponding to Fig. III showing the platen open. is an enlarged detail section on lines corresponding to lines 6-6 of Figs. V and VII. showing details of the platen. Fig. VII is a detail vertical section on a line corresponding to line 7-7 of Figs. I and VI, showing further details of the platen. Fig. VIII is an enlarged detail section on a line 88 of Fig. VI showing still further details of the platen. Fig. IX is an enlarged detail section Specification of Letters Yatent.

Fig. vi

Patented Apr. 25, 1916.

Serial No. 11,039.

on a line corresponding to line 9-9 of Fig. I. Fig. X is a detail vertical section on a line corresponding to line 101O of Fig. I, showing details of the platen catch. Fig. XI is a detail vertical section on a line corresponding to the broken line ll1l of Fig. IV, showing details of the timing and lamp switch mechanism. Fig. XII is a de tail sectional view similar to that of Fig. XI with the parts actuated to a position opposite that of Fig. XI. Fig. XIII is an enlarged detail vertical section taken on a line corresponding to line 1313 of Fig. IV, showing further details of the timing mechanism. Fig. XIV is an enlarged detail vertical section on a line corresponding to line 142-14: of Fig. IV, showing the control and its connections for the switch and timing mechanism, the parts being in the position occupied when the platen is closed. Fig. XV is a view similar to that of Fig. XIV, showing the position of the parts when the platen is open. Fig. XVI is an enlarged detail vertical section taken on a line corresponding to lines 1616 of Figs. III, IV, XV, XVI and XVII. Fig. XVII is an enlarged detail of the motor clutch releasing mechanism. Fig. XVIII is an enlarged detail vertical section on a line corresponding to line 18-18 of Fig. II, showing details of the main circuit switch. Fig. XIX is a diagrammatic view showing the electrical connections for the lamps and the switches, the switch contacts being in the position occupied when the platen is open and the safety or red lamp switch closed. Fig. XX is a corresponding diagrammatic view, the switch contacts being shown in the position occupied when the platen is closed and the printing lamps in circuit.

In the drawing similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawings, the boX-like casing 1 is adapted to contain the illuminating lamps and the timing and switch mechanism.

The top of the casing is provided with a transparent negative holder 2 with which the platen, designated generally by the numeral 3, coacts to clamp the negative for printing. This platen consists of a plurality of sections 4 hinged together by the strap-like hinges 5 having knuckles 6 at each end for the pintles 7, see Fig. I, II and V. The platen sections 4 have facings 4 of felt or other suitable fabric. When the platen is closed the sections are all in the same plane and constitute, in eflect, a continuous platen. See Figs. III and IX.

To insure the platen taking a curved position when open I provide the cleat-like members 8, best shown in Figs. I and V. These members 8 are secured to one section so as to overlap the adjacent sections and are beveled on the under side at each end as at 9, thereby permitting a limited swinging movement of the sections relative to each other and all coacting so that the sections must swing on their connecting pintles.

The inner section 4" is hinged at 10 to the block 11 on the casing top On the outer platen section 4 I secure a spring casing 12 for the spring roller 13. The springs 14 are arranged within the casing with one end of each secured to the roller and the other end to the end blocks 15 of the casing, see Fig. VI. On the ends of the roller are coupling members 16 which are slotted to receive the flattened ends 17 of the spring roller 13, the couplings being retained by the nuts 18.

The bail-like arm 19 is secured to the roller by these coupling members and pivotally connected to the lever 20 so that the platen is opened and closed thereby. The lever 20 is pivotally mounted at 21 on the casing at the rear of the platen.

The springs are so arranged that when the lever 20 is swung down to close the platen tension is applied to the springs so that when the lever is released the platen is automatically opened. The lever is held in its closed position by the catches 22, see Fig. X. These catches are oppositely disposed and provided with keeper or lever engaging portions 23, the catches being pivoted at 24 and held yieldingly in engaging position by the springs 25 mounted on the top of the casing 1 and engaging shoulders on the rear sides of the catches. Thus arranged, when the lever is swung down between the catches they automatically engage and retain the platen in its closed position.

To release the catches I mount a trip 27 provided with a hand piece 28 on the lever at 29 so that it may be swung down between the catches forcing them apart and releasing the lever.

A stop block 30 is provided to limit the forward or inward movement of the catches when the lever is disengaged therefrom. This provides a secure means for retaining the lever and at the same time one which can be readily engaged and disengaged.

The lever 20 also constitutes the means for setting the timing mechanism and the switch mechanism.

The printing lamps 31 are arranged Within the casing to illuminate the under side of the negative holder or plate 2. See Fig. II. These lamps may be arranged as desired.

I will now describe the timing and switch mechanism and the adjusting and operating connections therefor.

The motor is shown conventionally at 32 and is provided with a winding key on the outside of the casing. The timing member 35 which is in the form of a segment of a cylinder having an inclined edge 36 is rotatably mounted on the motor shaft 34. The timing member 35 is connected to the driving shaft 34 by a clutch, designated generally by the numeral 38. The details of this clutch mechanism are not shown as they form no part of my present invention.

At one side of the machine is a reciprocating bar or control member 39. This control member is connected to the lever 20 by the bent link 40 which is pivoted to the control member at 41 and connected by the pivot 42 with the arm 44 on the rock shaft 44 mounted in the top of the casing. The other arm 43 of this bell crank connected by the link 45 to the lever 20, the link being arranged through a slot 46 in the cover of the casing. A rubber closure 47 is provided for this slot so as to effectively exclude the light. The control bar 39 is supported by standards 48 having bearing rollers 49 therefor.

On the rear end of the control member 39 is an arm 50 for setting the timer member 35 or returning it to its initial position, the arm being mounted on the pivot 51. This arm 50 is actuated by the link 52 which is connected to the bracket 53 on the arm and slidably associated with the rear standard 48. The front end of this link is provided with a hook 54 which engages the upper bearing roller 49 on the rear standard 48 as the bar 39 approaches the rear end of its stroke raising the arm 50 to the position shown in Fig. XV. and engaging the plate 55 on the timing member thereby returning it to its initial position.

To avoid undue strain on the parts the rear end of the motor shaft 34 is supported in a slot 56 in the bearing pedestal 57, the shaft being yieldingly supported in the slot by the spring 58. This also permits the timing member being brought to its initial position without such accurate fitting of the parts as would otherwise be required.

The rearward stroke of the controlling member 39 releases the clutch 38 during the return of the timing member to its initial position. The means by which this is accomplished in the embodiment illustrated consists of the clutch lever 59 which is pivoted on the bracket 60 and connected by the link 61 to the arm 62 on the rock shaft 63. This rock shaft is supported in a vertical position in a suitable bracket or support 64 arranged at the side of the control member 39. Fixed on the upper end of this rock shaft is an arm 65 having a pivoted trip portion 66. The pivoted trip portion 66 is connected to the arm 65 by the pivot 67. The rear end of the tri 66 engages the rock shaft 6-3, see Fig. X 11, so that when the trip is swung rearwardly the rock shaft is actuated, it being free, however, to swing in the opposite direction without imparting its movement to the rock shaft. The trip is returned to its extended or engaging position by the springs 66.

The control member 39 is provided with a coacting trip 68 which engages this trip 66 as the control member is reciprocated, as best shown in Figs. IV and XVI. The trip 68 is positioned so that it holds the clutch in its released position during the resetting of the control member. Then the trip 68 releases the clutch the clutch is engaged by its spring 69.

The forward or return movement of the control member 39 which, as stated, takes place on the closing of the platen, closes the switch for the printing circuit. The printing circuit is controlled by two switches one of which is, for convenience, designated as the master switch and the other the timing switch. The timing switch comprises a pair of bars 70 mounted on suitable insulating blocks 71, the bars being arranged parallel,

as clearly shown in Figs. IV and XI. These 1 bars are interposed in the circuit 7 2 for the printing lamps 31 shown conventionally in Figs. IV, XIX, and XX.

The master switch 73 is shown conventionallv in Figs. XIX and XX. The timing switch and the master switch must both be closed in order to light the printing lamps. The master switch is arranged to be closed by the complete closing of'the platen. This is shown in Fig. XVIII in which the platen is shown in its closed position and the switch closed.

The switch 7 3 is of spring material so that it automatically opens or swings from the contact 74%. WVhen the platen is closed the spring casing 12 engages the pin 75 and forces the switch 73 down upon the contact 74 and retains it in closed position until the platen is opened.

The switch contact 76 is carried by the switch member 77 which, in the structure illustrated, is in the form of a bar pivoted at 7 8 upon the slide or carriage 79 mounted on rod-like ways 80. See Figs. IV, XI and XII. These ways 80 are supported at their ends by the uprights 81 so that the carriage is supported to reciprocate parallel to the axis of the timer member. The contact 76 timer member. the adpistment of the switch member slide is carried by a rod 82 arranged through the ears 83 of the arm 83 which is mounted on the switch member 77. The rod is slidable in the ears 83 and held yieldingly clownward by the coiled spring 84: one end of which rests on the collar 8 on the rod. The switch contact 76 is pivoted on the rod 82 at 85 which insures its etfective engagement with both of the contact rods 70. This switch member 77 also carries a contact 86 adapted to coact with a pair of contact rods 87 similar to the contact rods 70 for the colored light circuit 88.

The contact 86 is pivotally mounted at 90 on an arm 89 so that it engages its coacting contact rods 87 when the switch member 77 is in one position and the contact member 76 engages with its coacting contact rods 70 when the switch member! is in its opposite position. This is diagrammatically shown in Figs. XIX and XX, the parts being shown in Fig. XIX with the safty light switch closed as is also shown in Fig. XI and in Fig. XX with the printing light switch closed as is also shown in Fig. XII.

The circuit 91 for the safety or colored lamp 88 is not controlled by the master switch 7 3 but is controlled entirely by the timing switch. The switch member 77 is actuated from the control member 39 which is provided with a roller 92 adapted to coact with the dog 93 pivoted on the arm 94 on the bail-like switch actuating lever 95 which is pivoted at 96 and disposed below the switch member 77 so as to tilt the same on its pivot 78 when the switch actuating lever is raised, thus throwing the printing lamp switch contact 76 into engaging position. The switch member 7 7 is actuated in its opposite direction, that is, its rear end is thrown downward to the position shown in Fig. XI by means of the coiled spring 97, one end of which is connected to the arm 98 and the other end to the arm 83.

The dog 93 is pivoted on the arm 9% at 99 so that on the rearward stroke of the control member 39 the roller 92 raises and passes under the dog without actuating the switch actuating lever 95. On the forward movement of the control member 39 the roller engages the top of the dog and travels over the same thereby raising the switch actuating lever, opening the colored lamp switch and closing the printing switch. The end of the dog is supported by the rest 100. This rest also supports the switch actuating lever 95 when in its normal or initial position.

The switch member 77 is provided with a pivoted finger 101 adapted to coact with the timer member 35 to support the switch member 77 in its printing circuit closing position during periods determined by the adjustment of the switch member relative to the The timing is regulated by or carriage 7 9 which is provided with a rack 102, see Fig. IV. The adjusting shaft 103 is provided with a pinion 10d meshing with the rack, the upper end of the shaft being extended through the top of the casing and provided with a finger piece 105 and with an index 106 coacting with a dial 107, see Fig. I. For convenience in locating the dial on the casing the shaft 103 is flexible. The motor is also controlled by the switch member 77, the motor control rod 108 having a bail-shaped crank portion 109 which is en gaged by the loop 110 so that as the member 7 7 is tilted to close the printing light switch the motor is released.

The timer engaging finger 101 is pivoted at 111 and is retracted on the return stroke of the switch member by means of the slide 112 mounted on the under side of the switch control member 77 in the bearings 112 and connected to the finger 101 by means of the link 118. The slide is actuated by the lever 11 1 which is pivoted at 115 on the bracket 116 carried by the switch member 77. The lever is slotted at 117 to receive the arm 118 mounted on the carriage so that as the switch member 7 7 is rocked on its pivot the lever 114 is actuated to actuate the slide 11.2. The slide is provided with a dog portion 11$) which is pivoted on the rear end of the slide at 120 and provided with a pin 121 with which the lever engages. This dog portion is held yieldingly in position to engage the lever by the spring 122. \Vhen the switch member reaches the end of its upstroke, however, the dog portion snaps off from the lever allowing the spring 128 to swing the finger 101 to its extended position, shown by dotted lines in Fig. XII. The spring 123 returns the slide 112. These movements are timed so that the finger 101 is extended before the roller 92 releases the switch actuating lever 95 and the finger 101 drops upon the timing member. The starting of the motor being substantially simultaneous with this, the timer member is driven and the lighting circuit switch held closed until the finger 101 drops from the edge 30 of the timing member which opens the printing light switch and closes the colored light switch. The timing is accurately controlled by the lateral adjustment of the carriage which adjusts the switch member relative to the timer member.

I have illustrated and described my improvements in the form in which I have embodied the same. I have not attempted to illustrate or describe various modifications in structural details which I contemplate as I believe the disclosure made will enable those skilled in the art to which my inven tion relates to embody or adapt the same as circumstances may dictate. I desire, however, to be understood as claiming my improvements specifically in the form illustrated as well as broadly within the scope of the appended claims. 1 1

Having thus described my invention, What I claim as new and desire to secure by Letters Patent is:

1. In a structure of the class described, the combination with a motor, of a drivin shaft, a timing member rotatably mounted 011 said driving shaft, a driving clutch for said timing member, a switch member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, a. pair of rod-like circuit contacts disposed at each side of said way, a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, the other arm being provided with laterally projecting ears, a rod on which the other switch contact is pivotally mounted slidably arranged through said cars, a spring arranged on said rod between said ears on said arm, said rod having a collar thereon engaged by said spring, whereby the rod is held yieldingly downward, a finger pivotally mounted on said lever to engage said timer member, a spring for yieldingly supporting said finger in its extended position, a spring for actuating said switch member, a bail-like lever for returning said switch member disposed below the same, means for actuating said lever and for releasing said clutch and returning said timing member to its initial position, a motor control rod having a bail-like crank thereon, and a loop-like arm on said switch member embracing said crank whereby the motor is controlled by said switch member.

2. In a structure of the class described, the combination of a driving shaft, a timing member rotatably mounted on said driving shaft, a. driving clutch for said timing member, a switch member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, a pair of rod-like circuit contacts disposed at each side of said way, a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, the other arm being provided with laterally projecting cars, a rod on which the other switch contact is pivotally mounted slidably arranged through said cars, a spring arranged on said rod between said ears on said arm, said rod having a collar thereon engaged by said spring, whereby the rod is held yieldingly downward, a finger pivotally mounted on said lever to engage said timer member, a

spring for yieldingly supporting said finger in its extended position, a spring for actuating said switch member, a bail-like lever for returning said switch member disposed below the same, means for actuating said lever and for releasing said clutch and retuning said timing member to its initial position.

3. In a structure of the class described, the combination with a motor, of a driving shaft, a timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, a pair of rodlike circuit contacts disposed at each side of said way, a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, a rod on which the other switch contact is pivotally mounted slidably mounted on the other arm, a spring arranged on said rod, a finger pivotally mounted on said lever to engage said timer member, means for retracting said finger during the return of said switch member to its initial position, a lever for returning said switch member to its initial position, means for actuating said lever and for releasing said clutch and returning said timing memher to its initial position, and a motor control rod having operative connections with said switch member.

l. In a structure of the class described, the combination of a driving shaft, a timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on saidway, a pair of rod-like circuit contacts disposed at each side of said way, a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, a rod on which the other switch contact is pivotally mounted slidably mounted on the other arm, a spring arranged on said rod, a finger pivotally mounted on said lever to engage said timer member, a lever for returning said switch member to its initial position, and means for actuating said lever and for releasing said clutch and returning said timing member to its initial position.

5. In a structure of the class described, the combination with. a motor, of a driving shaft, a timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member, a

carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, a pair of rod-like circuit contacts disposed at each side of said way, a pair of switch contacts mounted on said switch member, a finger pivotally mounted on said lever to engage said timer member, means for retracting said finger during the return of said switch member to its initial position, a lever for returning said switch member to its initial position, means for actuating said lever and for releasing said clutch and returning said timing member to its initial position, and a motor control rod having operative connections with said switch member.

6. In a structure of the class described, the combination of a driving shaft, a timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, a pair of rodlike circuit contacts disposed at each side of said way, a pair of switch contacts mounted on said switch member, a finger pivotally mounted on said lever to engage said timer member, a lever for returning said switch member to its initial position, and means for actuating said lever and for releasing said clutch and returning said timing member to its initial position.

7. In a structure of the class described, the combination of a timing member, a pivotally mounted switch member, said switch member being laterally adjustable, circuit contacts, a coacting switch contact carried by said switch member, a finger pivotally mounted on said lever to engage said timer member, a spring for yieldingly supporting said finger in its extended position, means for retracting said finger comprising a slide mounted on said switch member, a link connecting said slide to said finger, a lever having a slot therein pivotally mounted on said switch member, a pivoted spring supported dog on said slide adapted to coact with said lever, and a fixed arm engaging said slot of said lever whereby the said lever is actuated as the switch member is rocked on its pivot.

8. In a structure of the class described, the combination of a timing member, a pivotaliy mounted switch member, said switch member being laterally adjustable, circuit contacts, a coacting switch contact carried by said switch member, a finger pivotally mounted on said lever to engage said timer member, a spring for yieldingly supporting said finger in its extended position, and

means for retracting said finger.

9. In a structure of the class described, the combination of a timing member, a pivotally mounted switch member adapted to engage said timing member, said switch member being laterally adjustable, circuit contacts, and a coacting switch contact carried by said switch member.

10. In. a structure of the class described, the combination of a rotatably mounted tapered segmental timing member, a driving means therefor, a pivotally mounted switch member adapted to engage said timing member, said switch member being laterally adjustable, circuit contacts disposed at each side of the switch member pivot, and coacting contacts carried by said switch member.

11. In a structure of the class described, the combination of a tapered segmental timing member, driving means therefor, a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, a rack on said carriage, a pinion meshing with said rack, means for rotating said pinion for shifting said carriage on said way, a pair of circuit contacts disposed at each side of said way, a pair of switch contacts carried by said switch member, and means for returning said switch member to its initial position.

12. In a structure of the class described, the combination of a timing member, a switch member adapted to coact with said timing member, a carriage on which. said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, a rack on said carriage, a pinion meshing with said rack, means for rotating said pinion for shifting said carriage on said way, a pair of circuit contacts disposed at each side of said way, a pair of switch contacts carried by said switch member, and means for returning said switch member to its initial position.

13. In a structure of the class described, the combination of a rotatable tapered segmental timing member, driving means therefor. a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, a rack on said carriage, a pinion meshing with said rack, means for rotating said pinion for shifting said carriage on said way, circuit contacts. and a coacting switch contact carried by said switch member.

14. In a structure of the class described, the combination of a timing member, driving means therefor. a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted. a way for said carriage disposed parallel to said driving shaft, a rack on said carriage, a pinion meshing with said rack, means for rotating said pinion for shifting said carriage on said way, circuit contacts, and a coacting switch contact carried by said switch member.

15. In a structure of the class described, the combination of a rotatably mounted tapered segmental timing member, driving means therefor, a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for adjusting said carriage on said way, circuit contacts disposed at each side of said way, and a coacting switch contact carried by said switch member.

16. In a structure of the class described, the combination of a timing member, driving means therefor, a switch member adapted to coact with said. timing member. a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for adjusting said carriage on said way, circuit contacts disposed at each side of said way, and a coacting switch contact carried by said switch member.

17. In a structure of the class described, the combination of a timing member, a pivotally mounted switch member adapted to coact with said timing member, a pair of circuit contacts disposed. at each side of the switch member pivot. a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, the other arm being provided with laterally projecting ears, a rod on which the other switch contact is pivotally mounted slidably arranged through said ears, and a spring arranged on said rod between said ears on said arm, said rod having a collar thereon engaged by said spring, whereby the rod is held yieldingly downward.

18. In a structure of the class described. the. combination of a timing member, a pivotally mounted switch member adapted to coact with said timing member, a pair of circuit contacts disposed at each side of the switch member pivot, a pair of switch contacts, contact carrying arms mounted on said switch member on opposite sides of its pivot, one of said switch contacts being pivotally mounted on one of said arms, a rod on which the other switch contact is pivotally mounted slidably mounted on the other arm, and a spring arranged on said rod to hold it yieldingly downward.

19. In a structure of the class described. the combination of a rotatably mounted tapered. segmental timing member, driving means therefor, a pivotally mounted. switch member adapted to engage said timing memher, said switch member being laterally adjustable, circuit contacts, and a coacting switch contact carried by said switch member.

20. In a structure of the class described, the combination with a motor, of a driving shaft, a timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft. means for shifting said carriage on said way, circuit contacts disposed at each. side of said way, switch contacts carried by said switch member, a lever for returning said switch member to its initial position, means for actuating said lever and for releasing said clutch and returning said timing member to its initial position, and a motor control having operative connections to said switch member.

21. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft. a driving clutch for said timing member, a switch member adapted to enact with said timing member, a carriage on which said switch member is pivotally mounted. a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts, a coacting contact carried by said switch member. a lever for returning said switch member to its initial position, means for actuating said lever and for releasing said clutch and returning said timing member to its initial position, and a motor control having 0perative connections to said switch member.

22. In a structure of the class described. the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to coact with said timing member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts, and a coacting contact carried by said switch member.

23. In. a structure of the class described. the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member, a carriage on which said switch member is pivotally mounted. a way for said carriage disposed parallel. to said driving shaft. means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a bail-like lever for returning said switch member to its initial position disposed below said switch member, a motor control rod having operative connections with said switch member, a reciprocating control member, a roller on said control member, an arm on said switch returning lever provided with a pivoted dog positioned so that the roller passes under the same on the rearward stroke of the control member and engages the dog on the forward stroke thereof to actuate the lever, a timing member return arm pivotally mounted on said control menr her, a link connected to said arm, a fixed member adapted to engage said link whereby said arm is raised at the end of the stroke of said control member, a plate on said timing member with which said arm engages to return the control member to its initial position, and means including said control member whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

24;. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing member rotatablv mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member. a carriage on which said switch member is pivotally mounted, a way for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member. a bail-like lever for return ing said switch member to its initial position disposed below said switch member, a motor control rod having operative connections with said switch member, a reciprocating control member, a roller on said control member. an arm on said switch return ing lever provided with a pivoted dog positioned so that the roller passes under the same on the rearward stroke of the control member and engages the dog on the forward stroke thereof to actuate the lever. and means actuated by said control member for returning said timing member to its initial position. a clutch shifting lover, a rock shaft having an arm at its lower end connected to said lever by a link. a trip arm on the said rock shaft, and a trip on said control member adapted to engage said trip 7 arm whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

In a structure of the class described. the combination with a motor. of a driving shaft. a tapered segmental timing member rotatably mounted on said driving shaft, :1 driving clutch for said timing member. a switch member adapted to engage said timer member, a carriage on which said switch lii member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a baillike lever for returning said switch member to its initial. position disposed below said switch member, a motor control rod having operative connections with said switch member, a reciprocating control member, a roller on said control member, an arm on said switch returning lever provided with a pivoted dog positioned so that the roller passes under the same on the rearward stroke of the control member and engages the dog on the forward stroke thereof to actuate the lever, and means actuated by said control member for returning said timing member to its initial position, and means including said control member whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

26. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a reciprocating control member, means operated by the return stroke of said control member for returning said switch member to its initial position, a timing member return arm pivotally mounted on said control member, a link connected to said arm, a fixed member adapted to engage said link whereby said arm is raised at the end of the stroke of said control member, a plate on said timing member, with which said arm engages to return the control member to its initial position, a clutch shifting lever, a rock shaft having an arm at its lower end connected to said lever by a link, a trip arm on the said rock shaft, and a trip on said control member adapted to engage said trip arm whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

27. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a reciprocating control member, means operated by the return stroke of said control member for returning said switch member to its initial position, a timing member return arm pivotally mounted on said control member, a link connected to said arm, a fixed member adapted to engage said link whereby said arm is raised at the end of the stroke of said control member, a plate on said timing member with which said arm engages to re turn the control member to its initial position, and means including said control member whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

28. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing member rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a reciprocating control member, means operated by the return stroke of said control member for returning said switch member to its initial position, and means actuated by said control member for returning said timing member to its initial position, a clutch shifting lever, a rock shaft having an arm at its lower end connected to said lever by a link, a trip arm on the said rock shaft, and a trip on said control member adapted to engage said trip arm whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

29. In a structure of the class described, the combination with a motor, of a driving shaft, a tapered segmental timing mem ber rotatably mounted on said driving shaft, a driving clutch for said timing member, a switch member adapted to engage said timer member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts disposed at each side of said way, coacting switch contacts carried by said switch member, a reciprocating control member, means operated by the return stroke of said control member for returning said switch member to its initial position, and means actuated by said control member for returning said timing member to its initial position, and means including said control member whereby the clutch llO is disengaged and held in its disengaged position during the return of the timing mem- 30. In a structure of the class described, the combination of a timing member, a pivotally mounted switch member controlled by said timing member, circuit contacts, a coacting switch contact carried by said switch member, a lever for returning said switch member to its initial position disposed below said switch member, a reciprocating control member, a roller on said control member, and an arm on said switch returning lever provided with a pivoted dog positioned so that the roller passes under the same on the rearward stroke of the control member and engages the dog on the forward stroke thereof to actuate the lever.

31. In a structure of the class described, the combination of a timing member, a driving clutch therefor, a switch member controlled by said timing member, a carria e on which said switch member is pivotal y mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts, a coacting switch contact carried by said switch member, a lever for returning said switch member toits initial position, an arm on said switch returning lever provided with a pivoted dog, a reciprocating control member, said dog being positioned so that it is engaged on the return stroke thereof to actuate the lever, a timing member return arm pivotally mounted on said control member, means for actuating said arm on the forward stroke of said control member, a clutch shifting lever, and means for actuating said lever comprising a trip on said control member whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

32. In a structure of the class described, the combination of a timing member, a driving clutch therefor, a switch member controlled by said timer member, a carriage on which said switch member is pivotally mounted, a way for said carriage disposed parallel to said driving shaft, means for shifting said carriage on said way, circuit contacts, a coacting switch contact carried by said switch member, a reciprocating control member, means operated by the return stroke of said control member for returning said switch member to its initial position, a timing member return arm pivotally mounted on said control member, means for actuating said arm on the forward stroke of said control member, and a clutch shifting means comprising a trip on said control member whereby the clutch is disengaged and held in its disengaged position during the return of the timing member.

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

WALTER W. BRIGGS.

(Sonic: of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0."