US1157740A - Controlling mechanism for printing-presses. - Google Patents

Description

,J. J. WALSER & C. A. DRESSER.-

CONTROLLING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED AUG.22. 912.

1,157,740. Patented 001;. 26, 1915.

3 SHEETSSHEET l.

" anlm 1.1. WALSER & C. A. D RESSER. CONTROLLING MECHANISM FOR PRiNTING PRESSES.

Patented Oct. 26, 1915.

3 SHEETS-SHEET 2.

APPLICATION .FILED AUG-22.1912.

1.1. WALSER & c. A. DRESSER.

CONTROLLING MECHANISM FOR PRINTING PRESSES.

APPLICATION FILED AUG.22, 1912.

Patented Oct. 26, 1915.

' 3 SHEETSSHEET 3.

UNITED'STATES PATENT OFFICE.

JOSEPH J'. WALSER AND CHARLES A. DRESSER, OF CHICAGO, ILLINOIS, ASSIGNORS TO THE GOSS PRINTING PRESS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CONTROLLING MECHANISM FOR PRINTING-DRESSES.

Application filed August 22,1912. Serial N 5. 716,433.

To all whom z'tmay concern:

Be it known that we, JOSEPH J. WALSER and CHARLES A. DRESSER, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Controlling Mechanism for Printing-Presses, of which the following is a specification, reference being had to the accompanying drawings.

Our invention relates to controlling devices specially adapted for use in connection with printing presses to control the starting, stopping and speed of such presses, and has for its object to provide improved electrically actuated mechanism .by which the desired control may be exercised.

In motor driven presses, as well as in other heavy machines operated by high speed motors, it is desirable that the speed of the press may be varied without varying the speed of the motor and this is particularly true in startingthe press. Patent to William Evensen, No. 988,560, dated April 4, 1911, for variable speed driving gear mechanism, shows and'describes a controlling apparatus for this purpose in which the motor, when started, operates at first through a train of reducing gears having ratchet mechanism. associated therewith for starting-the press, and is afterward directly connected with the main drive gear through which the press is driven by suitable clutch mechanism. The purpose of the ratchet mechanism is to permit the press to, be speeded up independently of the reducing gears, and the construction as a whole provides for starting the press gradually and afterward increasing its speed to the normal, without there being any interval during which the press is not positively driven.

In that construction, the starting and stopping of the press, as well asthe speed changes, are effected by manually operated levers.

Our present invention relates to the same general type of controlling mechanism, but diifers' therefrom in the important respect that the starting and stopping of the press, and also the-speed changes, are controlled electrically.

By our invention also the construction of the controlling mechanism is simplified and its efficiency increased.

We accomplish our object as illustrated in Patented Oct. 26, 1915.

the accompanying drawings and as hereinafter described.

What we regard as new is set forth in the claims.

shown in Fig. 3; Fig. 5 is an elevation of one of the gears and the ratchet mechanism, the shaft on which they are mountedbeing in section; Fig. 6 is a vertical section on line 66 of Fig. 5; and Fig. 7 is a diagrammatic view illustrating the electric; circuits.

Referring now to the drawings for a description of the embodiment of our invention therein shown: 8 indicates a base-plate on which the several gears and conn cted parts are mounted.

9 indicates the main shaft ofthe controlling mechanism, which is mounted in suitable bearings 10 and carries a gear 11, which is the main driven gear of the controlling mechanism- Said gear is keyed upon the shaft 9 in any suitable way.

The gear 11 is arranged to mesh with the gear system of the press, or other machinery to be driven, so that by rotation of said gear the machinery to be driven is set in motion. This gear 11, or its equivalent, is referred tom the claims as the driven member.

12 indicates a gear which is loosely mounted on the shaft 9.

13 (see Figs. 5 and 6) indicates the ratchet member of a pawl-and-ratchet clutch which is fixedly connected with the gear 12 in any suitable way, as by mounting it upon and keying it to the hub 12 of said gear 12, as

best shown in Fig. 6, the purpose being to cause said ratchet member 13 to rotate with the gear 12.

14 indicates the pawl member of said clutch, which is in the form of a disk mounted on and keyed to the shaft 9 so as to rotate therewith. Said pawl member 141- carries one or more pawls 15, which are adapted to engage the teeth of the ratchet member, so that by rotating the gear 12 in one direction the shaft 9 may be caused to rotate with it.

As best shown in Fig. 1, the gear 12 meshes with a pinion 16, mounted on and .to the shaft 21, thelatter gear meshing with the pinion 24 and a motor shaft 25.

26 indicates the motor which drives the press through the intermediate mechanism described.

From the foregoing description it will be observed that when the motor is in operation, assuming thepawls 15 to be in engaige'mentwith the teeth of the ratchet membar 13,' the main driven gear 11 will be driven slowly through the speed reducing train comprising succession the gears 24-23, shaft 21, gears 20- -19, shaft 17, gears Iii-12, the ratchet clutch and shaft 9.

When the gear 11 is to be driven at high speed, it is accomplished through a difierout series'of connections, which will now be described. 27 indicates a gear mounted on the main driven shaft 9 in line with the thereb gear 23, with which it meshes. 27 is loosely mounted on the shaft 9 and carries a friction clutch member 28, which cotiperates with a second clutch member 29, mounted on a feather on the shaft 9 so as to be capable of longitudinal movement thereof while rotating therewith. Obviously, when the clutch members 28 and 29 are in operative engagement with each other, the shaft 9 is driven directly from the gear 23, and the ratchet clutch hereinbefore described becomes inoperative because the high speed at which the shaft 9 is rotated operates by centrifugal action to throw thepawls 15 out of engagement with the ratchet wheel 13, and they remain in such position as long as the high speed is maintained,

enabling the shaft 9 to rotate indepen ently of the gear The movable clutch member 29 is shifted into and out of engagement with the fixed member 28 by means of a rock-shaft 39, mounted in suitable bearings 31 in standards 32, 33, as best shown in Fig. 2. Said rock-shaft is arra ed at right angles to the main driven sha ,assliowninFig.1,andcar1-iesadepending fork 34 which is adapted to swing longitudinally of the shaft 9 when the rockshaft 30 is rocked. Said fork embraces a collar 35, mounted on the shaft 9 and connected with the movable clutch member 29,

preferably by links 36, as shown in Fig. L Thefork 34 is connected with the collar 35 in any suitable way as bypins extending The gear into an annular groove in said collar. By this construction, the clutch member 29 may be moved into or out of engagement with the clutch member 28 by rocking the shaft 30. The shaft 30 is rockedslowlyin one direction or the other, as required, by means of a small auxiliary motor 37, best shown in' Fig. 1, said motor having on its shaft a pinion 38, which meshes with a gear 39, mounted on the shaft 30, as best shown in Fig. 2. The gears 3839 are properly proportioned so that gear39 rotates at the proper speed to rock the shaft 30 in one direction or the other and so move clutch member 29 into engagement. with fixed clutch member 28.

The direction of rotation of the gear 39 debrushes 43-44, carried respectively by arms 4E546, preferably supported by the standard 32. The brushes 43% are also insulated from each other. Their purpose in coacting with the segments 41- 12 is to control the operation of the aum'liary motor 37, as will be hereinafter described.

Referring now to Fig. 7 for a description of the various circuits and the devices for making and breaking the same as required, A, B and C indicate respectively push-buttons, or equivalent devices, for starting, stopping and slowin down the main motor 26. D, E, F, G, and I indicate six so1enoids,each of which is provided with the usual core, designated by the corresponding small letters, d, e, f, h and i. The solenoids D and E, with tl iei respective cores d and e, are arran ed in axial alinement, as shown in Fig. and said cores are connected by links47 so that they move in unison, although, when energized, the solenoid coils 'D-E act to move said cores oppositely; that is to say, when the solenoid D is energized, it acts to move the cores cie to the left, as shown in Fig. 1, and when. the solenoid E is energized, it acts to move said cores to the right. e indicates a contact device which is carried by the core e. It will be understood that in practice, any form of switch suitablev for the purpose may be employed, as the arrangement shown in the drawing is illustrated merely for convenience of description, and is not intended to be illustrative ofrthe precise construction of switch that will be employed in practice. 4849 in-' dicate two contact devices'which are adaptnecting the other end of. said helix with the;

-with the brush 43.

ed to be engaged by the brush a when the core 6 is moved to the extreme rightfas is the case when the solenoid E is energized, as shown-in Fig. 7. The contact 49 is connected by a wire 50 with the brush 4:4, as shown in Fig. 7. The contact 48 is connected by a wire 51 with the main negative lead wire 52. 53 indicates a wire which connects one-contact of the'push-button C with the negative wire 52. 54 indicates a wire connectingone end of the helix of solenoid E with the other contact of the push-button C. 55 indicates a wire conpositive main lead wire 56. 57 indicates a wire connecting negative wire 52 with one contact of the push-button A. 58 indicates a wire connecting the opposite contact or" said push-button with one endof the helixof solenoid D. 59 indicates a wire connecting the opposite end or" said helix with the positive wire 56. From the foregoing, will be observed that the push-button A is in circuit with the solenoid D, and the slowdown push-button C is in circuit with the solenoid E.

60 indicates a switch lever, which in the diagram shown in Fig. 7, is pivoted'at 61 between its ends, one end of said lever being connected by pivot- 62 with the adjoining ends of the links 47, the arrangement being such that movement of the cores (Ze within their respective coils, operates to rock said lever in one direction or the other. At its opposite end portion lever 66 carries con tacts 636fl65 and 66; ihe contacts 66 and 67 are in electrical connection with each other and are insulated from the lever 60. The contacts 636465 are electrically connected with each other and with the pivot of the lever 6O. 63 indicates a segmental contact plate arranged to be engaged by contact 63 when the lever60 moves a short distance to the right of the position shown in Fig. 7, which is its inoperative position. 64 indicates a series of contacts segmentally arranged in position to be engaged by the contact 64 when it moves to the right of the position shown in Fig. 7, said contacts being severally connected with a resistance 64 65 indicates a segmental contact plate arranged to be engaged by the contact 65 when the lever 60 moves to the right of its inoperative position, and 66 and 67- indicate similar plates arranged to be engaged by the contacts 6667 respectively.

63 indicates a wire connecting contact 63 6% indicates a wire connecting the contact plates 6 with the armature of the principal motor 26. 65 indicates a wire connecting the segment .65 through a resistance 65 with the field of the motor 26, diagrammatically represented at 26 Fig. 7. 66 indicates wire connecting the segment 66 with a contact 68 associated with the solenoid F, as will be hereinafter described. Wire 66 is also connected by a wire 69 with one terminal of the stop push-button B. The other terminal of the stop push-button B is connected by a wire 70 and a resistance 71 with the wire 69, and is directly connected with ment 67 with the negative lead wire 52.

73 indicates a contact arranged adjacent to the contact 68, said two contacts being adapted to be electrically connected by a brush it carried by the core f of solenoid F. .Contact 73 is connected by a wire 75 with one end of the coil of solenoid G, and the opposite end of said coil is connected by a wire 76 with the positive lead wire 56. 77 indicates a brush carried by the core 9 of the solenoid G, said brush being arranged between two pairs of contacts, 7879, and 8081, respectively, the arrangement being such that when the solenoid G is energized, core is withdrawn thereinto so as to bring the brush 77 into engagement with the contacts 7879, thereby connecting them;

whereas when the solenoid G is deenergized,

the brush 77 drops by gravity and connects contacts 808l. Contact 78 is connected by a wire 82 with the negative lead wire 52, and said wire 82 also connects contact 80 with said lead wire by a branch-wire 83.

Contact 79 is connected with the pivot 61v of lever 60 by a wire 84. 85 indicates a wire which connects contact 81 with wire 54 which leads from the slow push-button G.

core h in one direction, and 9l92 indicate a pair of brushes adjacent to the brush 87 and arranged to be connected by said brush when the core it moves in the opposite direction. 9394 indicate contacts arranged at the opposite side of the brush 88 from the contacts 91-92 and arranged to be con nected by said brush when the contacts ,9l92 are connected by brush 87. 95 indicates a wire connecting contact 89 with the contact plate 42. 96 indicates a wire connecting contact with one end of the helix of solenoid l. 97 indicates a wire connecting the other end of said helix with the positive wire 56. 98 indicates a wire connecting a contact 91 with the positive wire 56. 102 indicates a wire connecting contact 92 with the opposite pole of the armature of auxiliary motor 37. 103 indicates a wire connecting the opposite pole of the field 99 of auxiliary motor 37 with the negative wire 52.

104-105 indicate brushes at opposite ends of the core 5 of solenoid I; 106107 indicate a pair of contacts arranged adjacent to the brush 104 and arranged to be connected by said brush when the core 5 moves in the proper direction. 108 109 indicate a pair of contacts arranged adjacent to brush 105 and arranged to be connected by said brush when said core 6 moves in the opposite direction. 110 indicates an inter mediate brush carried by the core 271, which acts when said core moves in one direction to connect the pair of contacts 111-112 at wire connecting contact 109 with wire 100,

which is connected with the armature of auxiliary motor 37, and 121 indicates a wire connecting the motor 26 with the positive wire 56.

It will be understood that in giving the I foregoing detailed description of the electrical connections shown in Fig. 7, we do not intend to have it understood that the particular wiring system shown must be followed, as obviously the wiring may be accomplished in any approved way, provided the several circuits hereinafter described are established as required to efiectuate and control the operations of the machine.

The operation of themachine as a who's, including the circuit control mechanism, is as follows: When the press is not running, the motor 26 is also stopped and the clutch members 2829 are out of engagement with each other. The disk or plate 40. the rotation of which controls the operation of the auxiliary motor 37., is then in the position illustrated diagrammatically in Fig. 7, the brush 43 being in engagement with the contact plate 41, and the brush 44 being out of engagement with its contact plate 42. The circuit controlling devices illustrated in Fig.

7 then occupy the positions shown in Fig. 7

the switch lever being at the extreme left and being inoperative so 'far as closing any circuits is concerned. At this time also none of the solenoids shown in Fig. 7 are energized. It should be explained that the illustration is intended'to represent the solenoids F-G-H and I as arranged so that their respective cores drop by gravity when said solenoids are not energized, but our invention is not limited to this arrangement, as any other equivalent mechanism may be employed. To start the press, the on pushbutton A is pressed, thereby energizing the solenoid I), the circuit being as follows: from positive wire 56, through Wire 59, through coilof said solenoid, thence back through .wire 58 and push-button A to wire 57 which connects with the negative wire 52. When the solenoid D is thus energized its core d isdrawn into it, moving to the left, thereby rocking the switch lever 60 so a as to move contacts 6667 into engagement with the segments 66*67 respectively. At the same time contact moves into en'- gagement with contact 65, and contact 64 moves into engagement with the first of the series of contacts, 64. Contact 63, carried by the lever -60, does not at this time engage contact plate 63* because the latter is set far enough over to the right so that it is engaged later than the others mentioned. The en gagement of contacts 6667 with contact from negative wire 52, by wire 82 through contact 78, brush 77 and contact 7 9-to wire 84; thence to switch lever 60; thence to contacts 6464 resistance 64 and Wire 64 to the armature of motor 26; and from the contact 6565 -and wire 65, to the field 26 of said motor; thence by wire 121 to positive wire 56 The motor will thus be started slowly owing to the resistance 64 being in the armature circuit, and the press will be driven through the slow speed mechanism,

comprising the gears 242320 19-16 12, ratchetclntch 14 and the driven gear 11. If the on push-button A is still pressed do solenoid D will continue to act upon its core cl and move the outer end of lever 60 farther to the right, cutting out part of the resistance 64 and making con tact between contact 63 and contact segthrough contact plate 41, wire 115, contact 107, brush 104, contact 106, wire 113, helix of solenoid H, and by wire 114 to positive wire 56. The solenoid H thus being energized will act upon itscore h to move the brush 88 into contact with contact points 9394 and the brush 87 into contact with the contacts 9192, which will close the circuit through the auxiliary motor 37, as follows: from positive wire 56, through wire 101, contact 91, brush 87, contact 92, wire 102, to the armature of the motor 37 thence through wire 100, contact 94, brush 88, contact 93 to wire 98, field 99 of said auxiliary motor and wire 103, to negative wire 52.

The actuation of said auxiliary motor operates to rotate the plate 40 in the manner hereinbefore described, by gears 3839, said plate being rotated clockwise, the brush 43 moving along upon contact plate 41 and the brush 44 moving into contact with and along contact plate 42. This actuation of the auxiliary motor moves the clutch member 29 into engagement with the clutch member 28, thereby making the high speed connection for driving the press through gears 24 2327, shaft 9 and the main driven gear 11, the ratchet clutch 14 being disengaged, as

hereinbefore described. The auxiliary mo-.

tor 37 continues to operate until brush 43 is disengaged from contact plate 41 by the rotation of the plate 40, thereby breaking the circuit through the said motor. It will be noticed, however, that after this occurs, the brush 44 will continue in contact with its plate 42, but will then be at the extreme left end of said contact plate. By continued pressure on the push-button A, the lever 60 may, if desired, be thrown still farther to the right, cutting out resistance from the armature circuit, and cutting in resistance in the field circuit of the main motor 26 until the motor attains its maximum speed.

In order to slow down the press, pushbutton C is pressed, thereby energizing solenoid E and causing it to move the outer end of the switch lever 60 to the left, thereby cutting out resistance from the field circuit of the main motor 26 and cutting in resistance in the armature circuit thereof. The energizing circuit for the solenoid E thus established is as follows: from negative wire 52, through wire 53, to push-button C; thence through wire 54, through the helix of solenoid E, and thence by wire to the positive wire 56. Continued pressure upon the button C will cause the core 6 of solenoid E to move far enough to the right to carry the brush 6 into contact with contacts 4849, which is timed to occur after contact 63 moves out of engagement with contact plate 63 This energizes solenoid I, the circuit thus established being as follows: from positive wire 56, by wire 97, to helix of solenoid 1; thence by .wire 96 to contact 90; thence through brush 86, which Will have dropped into engagement with contacts 90 and 89 when brush 43 moves out of engagement with contact 41, as hereinbefore described; thence through contact 89 to wire 95 and over wire 95 to contact plate 42; thence through brush 44, wire 50, contact 49, through brush 6 contact 48 and wire 51 to the main negative wire 52. The solenoid I being thus energized, acts upon its core 71 to move brush, 104 out of engagement with contacts 106107, brush 110, into engagement with contacts 111-112 and brush 105 into engagement with contacts 108109. A reverse circuit is thus established through auxiliary motor 37, as follows: from positive wire 56, through wire 101, to contact 91; thence by wire 118 to contact 108, brush 105, contact 109, wire 120, wire 100, to the armature of said motor 37; thence by wire 102 to.

contact 92; thence by wire 117, contact112,

brush 110, contact 111, wire 116and wire 98,

to the field 99 of the motor 37; thence by wire 103 to negative wire 52. The circuit thus established operates the motor 37 in a reverse direction, rotating plate 40 in a contra-clockwise direction, thereby moving contact plate 42 to the left until brush 44 passes off the right-hand end thereof and brush 43 is again in engagement with contact plate 41. When brush 44 is disconnected from contact plate 42, the circuit through the motor 37 will be broken and it will thereupon stop. This reverse rotation of the motor 37 will, as hereinbefore described, operate to move the clutch member 29 out of engagement with the clutch member 28, so that the high speed mechanism will be disengaged from the press and it will be again driven by the low speed mechanism hereinbefore described.

If the slow-down push-button C is'held down long enough, the switch lever will be moved to its extreme left position, thereby disconnecting all the circuits and stopping the press, but in addition to this slowdown push-button, we have also provided for stopping the press directly without using the slow down controlling mechanism. When the press is in operation the solenoid F is energized to some extent, but not sufficiently to ordinarily cause it to raise its core 7 and move the brush 74 out of contact with the contacts 6873, for the reason that the noid sistance 71 and more powerfully energizing the solenoid F; the circuit being then as follows: from positive wire 56, by wire 72,

through "the helix of solenoid F, by wire 70 to push-button B; thence by wire 69 and wire 66 to contact plate 66 thence through solenoid E being thus energized, draws core e to the right and accordingly moves switch of convenient points.

member into its inoperative position, ores-Eng all the circuits controlled thereby and stoppin the motor 26. This movement of core 6 ma es contact between brush (2 and contacts 4H9, thereby starting auxiliary motor 37 to disconnect the clutch members 28-29, as hereinbefore described.

From the foregoing description it will be apparent that either when the speed of the driven mechanism is accelerating'or when it. is decreasing, the electric controlling mechanism will act automatically at the proper time to connect or disconnect the high speed drive mechanism as occasion may require, and that in addition, the speed of the press may be gradually controlled from more or less distant points by means of the several push-buttons. If desired, sets of push-buttons may be provided at a number It will be understood that the several solenoid cores may be made in part of nonmagnetic material, if arranged as shown in Fig. 7, so as to secure their proper operation, but as hereinbefore suggested, our invention is not restricted to such arrangement, as any other equivalent construction may be em c loyed.

hat which we .claim as our invention, and desire to secure by Letters Patent,-is,

1. A. speed controlling apparatus comprising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed'mean's for connecting the'motor with said driven member, andan electrically operated switch for controll ng the connection of said driven member with said motor through said high and low speed Z,

" prising a main motor, a

s eed means between said motor and, said means.

2. A driving apparatus comprising a main motor, a driven member, slow speed gearing connecting said driven member; with sai motor, connecting means operating to permit said driven member to rotate athigh speed independently of said slow speed gearing, high speed gearing for driving said driven member from said motor independently of said slow speed gearing, a second motor, mechanism operated by the latter motor for connectin said driven member and the main motor t rough said high speed gearing, and means for successively starting the mam motor and afterward actuating said second motor.

3. A driving apparatus comprising a main motor, a driven member, slow speed gearing connecting said driven member with said motor, connecting means operating to per mit said driven member to rotate at high speed independently of said slow speed gears ing, high speed gearing for driving said driven member from said motor independently of said slow speed gearing,- a second motor, mechanism operated by the, latter motor for connecting said driven member and the main motor through said high speed gearing, a switch, and means controlled by said switch for successively st'a-iting the main motor and afterward actuating said second motor.

a. A driving apparatus comprising a main 5. A speed controlling apparatus compris inga motor, a driven member, low speed gearing between the motor and said driven member for driving said driven member at low speed, and comprising'means for automatically disconnecting said gearing when the speed of the driven member exceeds that of saidlow speed gearing, high speed means for connecting the motor wlth said driven member comprising clutch mechanism, an

auxiliary. motor for actuating said clutch mechanism to connect or disconnect said driven member and the said first mentioned motor through said high speed means and means for controlling the actuation of said auxiliary motor.

. 6. A speed controllin apparatus com- 'ven member, low

riven memberfor driving said driven member at low speed, high speed means for conl I u nectmg said motor with said driven member, 1 l I to control the actuation of said driven memher by said first mentioned motor through said high speed means, and a switch for controlling the operation of said motors.

7. A speed controlling apparatuscompris ing a main motor, a driven member, low speed means between said motor and said driven member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, comprising an auxiliary motor, mechanism actuated by said auxiliary motor for controlling the connection of said driven member with said first mentioned motor through said high speed means, means for closing the circuit through said auxiliary motor, and means for automatically breaking the circuit through said auxiliary motor upon the completion of each operation thereof.

8. A speed controlling apparatus comprising a main motor, a driven member, low

speed means between said motor and saiddriven member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, comprising an auxiliary motor, mechanism actuated by said auxiliary motor for controlling the connection of said driven member with said first mentioned motor through said high speed means, electrically controlled means for closing the circuit through said auxiliary motor, andmeans for automatically breaking the circuit through said auxiliary motor upon the completion of each operation thereof.-

9. A speed controlling apparatus comprising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed means for connecting the motor with said driven member, electrically operated controlling mechanism for controlling the speed of said motor and electrically actuated means for controlling the connection of said driven member with said motor through said high speed means.

10. A driving apparatus comprising a main motor, a driven member, low speed means between said motor and said driven member for driving said driven member at low speed, high speed means, comprising clutch mechanism, for connecting said motor with said driven member, an auxiliary motor for actuating said clutch mechanism, start.- ing, stopping and slow-down circuit closing devices, and electricallyactuated mechanism controlled by said circuit-closing devices for controlling the operation of said main motor and its connection with the driven memher through said high and low speed means.

11. A speed controlling apparatus comprising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed means forconnecting the motor with said drivenmember, starting, stopping and slow-down circuit closing devices, electrically actuated mechanism controlled by said circuit closing devices, respectively, for controlling the operation of said motor, and electrically actuated means for controlling the connection of said driven member with said motor through said high and low speed means.

12. A speed controlling apparatus comprising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, an electrically operated switch for controlling the speed of said motor, electrically actuated means for controlling the connection of said driven member with said motor through said high and low speed means, and

means for opening and closing the circuit 7 prising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, an electrically operated switch for controlling the speed of said motor, electrically actuated means for controlling the connection of said driven member with said motor through said high and low speed means, means for opening and closing the circuit through said electrically actuated means by said switch, and means for automatically breaking the circuit through said electrically actuated means upon the completion of each operation thereof.

14. A speed controlling apparatus comprising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, an electrically operated switch for controlling the speed of said motor, an auxiliary motor for controlling the connection of said driven member with said first mentioned motor member for driving said driven member at low speed, high speed means for connecting said motor with said driven member, an electrically operated switch for controlling the speedof said motor, an auxiliary motor for controlling the connection of said driven member with said first mentioned motor through said high and low speed means, means whereby the operation of said auxiliary motor is controlledby said switch, and means for automatically breaking the circuit through. said auxiliary motor upon the completion of each operation thereof.

16. A speed controlling apparatus com: prising a motor, a driven member, low speed means between the motor and said driven member for driving said driven member at low speed, high s eed means for connecting the motor with said driven member, comprising a clutch, an auxiliary motor, means actuated by the rotation of said auxiliary motor in one direction to operate said clutch to connect the driven member -with said first mentioned motor through said high speed means, and acting upon reverse rotation of said auxiliary motor to disconnect said speed means, and means for controlling the operation of said motor.

17 A speed controlling apparatus prising a motor, a driven mere" member for driving said driven member a low speed, high speed means for connecting the motor with sald driven member, compr sing a-clutch, an motor, means actuated by the rotation of said auxiliary somer means, high speed means for driving said driven member from said motor independently of said slow speed means, a second mounted on said driven shaft, a gear mount- 7 ed on said drive shaft and meshing with said loosely mounted gear, anauxiliary motor, means operated b said auxiliary motor for operating said 0 uteh mechanism to control the connection of said loosely mounted gear with said shaft, a switch, and means controlled y said switch for sure cessire starting first-mentioned motor and art rward said aux liary motor.

2:. speed controlling apparatus comprising a motor, a drive shaft, a driven shaft,

ratchet mechanism for connecting said drive and driven shafts, a gear loosely mounted on said driven shaft, a gear mounted on said drive shaft and meshing with said loosely mounted ear, an motor, means operated or said auxiliary motorv for operating said clutch mechanism to control the connection 01? said loosely mounted gear with said shaft, and an electrically-operated switch controlling the actuation of said drive shaft through said clutch mechanism.

JOSEPH J. WALSER. CHARLES A. DRESSER.

Witnesses:-

' AIBERT H. Anams, W. H. Dr Bn'sx.

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