US1749791A - Work-feeding mechanism for typewriting machines - Google Patents

Description

March11,1 930. v W D 1,749,791

WORK FEEDING MECHANISM FOR TYPEWRITING MACHINES Filed Sept. 2. 1925 3 Sheets-Sheet 1 I Fra l.

[ 4 J/vvmvroR March 11, 1930. H, WOOD 1,749,791

WORK FEEDING MECHANISM FOR TYPEWRITING MACHINES Filed Sept. 2, 1925 3 Sheets-Sheet 2 24 f 60 4,5 19-" I 23- Y W i: 70 $9 64 INVENY'CR H. L. WOQD March 11, 1930.

WORK FEEDING MECHANISM FOR TYPEWRITING MACHINES Filed Sept. 2, 1925 3 Sheets-Sheet 3 Patented Mar. 11 1930 A 1,749,791

UNITED STATES PATENT OFFICE HARRY L. WOOD, 01 LAKEWOOD, OHIO, ASSIGNOR TO DAVID W. K. PEACOCK, OF CLEVELAND, OHIO 'WORK-FEEDING MECHANISM FOR TYPEWRITING MACHINES Application filed September 2, 1925. Serial No. 54,000.

My invention relates to power transmitting tional view of the clutch elements assembled, devices for automatically operating mechataken on line 11-11 of Fig. 8; and Fig. 12 is nism for feeding work sheets to typewriting an elevational view of the pin for associatmachines, and particularly to power transing the clutch elements.

mitting devices for operating a feeding ap- Referring to the drawings by characters 55 paratus of the type embodying the general of reference, 1 represents a typewriting maprinciples shown, described and claimed in chine having a platen 2 carried by a shaft 3 U. S. Patent No. 1,481,489, issued to G. T. having an end 4 projecting beyond the side Trundle, Jr. V of the machine. The typewriting machine is An object of the invention is to provide mounted upon the base 5 supported by the for automatic operation of apparatus and a frame 6, and the primary work sheet feeding typewriter platen to feed work sheets from a apparatus 7 is also mounted on the base and magazine into position with the platen for a extends in a plane above the typewriting typing operation and which will eject the machine. The work sheet supply magazine preceding work sheet from the platen, such and the primary feeding mechanism for mov- 5 driving mechanism being self-releasing after ing the envelopes from the magazine to the each actuation when a complete operation of platen are substantially the same as dethe apparatus has been performed. scribed in the above mentioned patent and These and other objects will appear more reference may be had thereto for a descripfully hereafter. tion and illustration. 7

The annexed drawings and the following The typewriter is'positioned upon the supdescription set forth in detail certain means port below the lower end of the feeding appaembodying my invention, the disclosed ratus, and so placed that work sheets which means, however, constituting but one of the are discharged from the apparatus will be various forms in which the principle of the projected behind the platen'2 and in front of invention maybe applied. the pressure rollers, not shown, disposed to In said annexed drawings, Figure 1 is a the rear of the platen 2. The operation of front elevation of a device embodying my in the primary feeding apparatus to bring a vention, shown in conjunction with a typeworksheet into the described position is re- 30 writing machine of a standard type and conferred to hereinafter as the primary feeding nected with the shafts for operating work operation. After the work sheet has been so sheet feeding mechanism shown and described placed, the platen 2 is partially rotated in Patent No. 1,481,489 above referred to. whereby such work sheet is brought around Fig. 2 is a front fragmentary sectionof the said platen and into position to have the ad- 5 mechanism for actuating the platen and dress'typed upon it by the typewriter. This finger feeding shafts, taken on line 22 of operation of the platen is hereinafter re- Fig. 3; Fig. 3 is vertical medial longitudinal ferred to as the secondary feeding operation. section of the power transmitting mechanism; Mechanism 1 is provided for operating the Fig. 4 is a sectional view taken on line 4-4 rod 8 and the shaft 4 to actuate the primary of Fig. 3 showing the reduction gearing and and secondary feeding apparatus, and is the self-releasing clutch; Fig. 5 is a sectional driven by power actuated mechanism which View taken on line 55 of Fig. 4 with a fragis arranged to be connected by the operator ment of the reduction gearing casing broken and to be self-releasing so that only one comaway; Fig. 6 is a section of one of the clutch plete work sheet feeding operation is per- 5 elements; Fig. 7 is a section of another clutch formed upon each connection made by the element; Fig. 8 is a section of the clutch eleoperator. ments assembled; Fig. 9 is a section of a Disposed to the right of and extending to clutch elementtaken on line 9-9 of Fig. 6; the rear of the typewriter 1, and suitably se- Fig. 10 is a sectional view of a clutch element cured to the base 5, is a. plate 10 provided with 9 taken on line l0-10of Fig.7; Fig. 11 is asec. a central guide portion 11. The guide and the base are provided with longitudinally 7 extending slots through which the bolt 12 ex tends and is secured by a nut 13. hlounted on the plate 10 is a standard 14 having. a groove 15, which fits over the guide portion 11. The bolt 1 2"extends through an aperture in the standard and slidably secures it in desired position on the plate 10, so that the standard may be adjusted transversely with the axis of the platen 2. The right hand face of the standard 14 forms a vertical plane surface against which is seated a frame mem ber 16, secured and vertically adjustable on said face by means of bolts 17..

The lower end of member 14 is provided with'two-laterally extending arms 19 upon the ends of which are formed bea'rings 20 in which is journalled a rock shaft 21.- The power driving mechanism, hereinafter described, is connected to operate this shaft 21 to cause it to actuate mechanism for operating the secondary feeding apparatus and to operate the primary fee-ding mechanism.

Intermediate the'bearings 20, is a crank arm 23, whose free end, 24,'articulates with the lowerarm 25 of anoscillatory gear segment 26 mounted upon a pivot 27 fixed to "the frame 14. This segment'26meshes with a segmental pinion 28' which is loosely journalled upon a journal rod 29 mounted upon and-fixed in the upper part of the frame mem ber 16. This pinion 28 is formed with an extension 30 and a shaft 31-extends therefrom and has a pawl 32 fixed to the projecting end, laterally of said pinion. The pawl 32 is provided at its free end witha pin 32 and a spring 34 is secured to the shaft 31 and bears against the pin 32'. Said pawl engages a ratchet wheel'33 mounted upon the'huh of and splined'to a bevel gear 35 which is itself loosely journalled upon the journal rod 29.

The gear 35 meshes with the bevel pinion 36 which is provided with an extended hub 37 journaled in a bearing 38. formed centrally of a yoke 39 which is provided with an end bearing 40 in which is mounted the journal rod 29.

The 'pinion'36 is formed with an-axial cylindrical bore through which extends a reciprocable rod 41, provided with a longitudinal groove 42 which is engaged by a spline 42 'fixe'dupon the interior of the pinion 36. The

rod 4l, therefore, may reciprocate longitudinally "through 'said'pinion butis rotatively fixed relative thereto. A sliding cross head 43' is mounted'upon'the rod 41, and the latter is provided at its right hand end with-a fixed collar 44 which limitsthe'movement of saidv cross head onthe rod. Articulating with the latter aretwo links 45, which-also articulate with the upper en-dof a crank arm 46. u

' The'left hand'en d of the rod 41 is connected with the; shaft extension 40f the platen shaft by meansof a universal oint 47'; V pawl: releasing segment 4'8 is rotatably This bearing is mounted upon the hub of the bevel gear 35 and is provided with an outer cam surface 49 with which the end of the pin 32 will engage during a'portion of its movement when the pin ion 28 is operated. A shaft 50 is mounted longitudinally in a bearing 51 formed'with one of the standards 14, and is provided with a knurled nut 52 exteriorly of the casing. The inner end of the shaft 50 hasa pinion 53 secured thereto and meshes with teeth 54formed on a portion of the periphery of the segment 48. By rotating the knurled end of the shaft 40 the segment can be rotated by means of the pinion Y53 and the teeth 54 with which it engages to locate the cam portion of the periphery of the segment so that the pawl 32 will be released from the engagement with the gear 33 at-anydesired'point to control the rotation of the typewriter platen while the mecha 'nism continues to operate the full movement.

' When the shaft 21 is rocked to the left the segment 26 will be moved to the right on its pivot 27 and will rotate the segment'28 The pawl 32 being held in engagement with the pinion33'by the spring 34 will rotate the pinion 33 with the segment 28. The ratchet 33 and the gear 35 being pinned together will cause rotation of the pinion 36 and the rod 41 which is slidably keyed therewith and the platen 3 is thereby rotated. The cam surface ofthe segment 48 is positioned so that the pin at the free end of thepawlwill ride thereon out ofengagementwiththe pinion 33 after a desired driving movement, so that the driving connection just described between the segment 28 and the pinion 33 can he disengaged in this-manner. Byadjusting the position of the cam, the rotation of the platen can be regulated to be driven the full driving movement of the segment 28, or any lesser amount of rotation of the platen can be obtained whilethe segment continues a uniform driving movement.

A lever 60 issecured toone endof theshaft 21 and is pivotally connected to the-lowerend of the rod '8 for operating the primaryfeeding'device. A' 1ink 61 is pivoted to the lever 60 adjacent to the shaft 21. The link 61 is reciprocated to rockthe shaft "21 and to reciprocate the rod 8 for'opera ting the primary feeding device, by proper transmitting mech anism hereinafter described. 1

The rod 8 moves with the link 61, and when moving downwardly the feeding device it operates is returning from-a feeding opera;

tion, while the secondaryf'eedin'g device or rotation of the platen is in progress. When the link'6lmoves upwardly the primary feeding device will be moving a work member to'the platen, while the pawl will be'idling and will not operate the platen rotating mechanism. The rotation of the platen Will eject the work member preceding the next work'member moved'thereover. An electric motorl63 is secured totheframe cured at its upper end thereto.

6 and drives a belt 64: which extends around the pulley 65. The pulley is keyed to a stub shaft 66 which is carried in a bearing 67 extending through a casing 68 secured to the end of an extension 69 projecting from and secured to the frame member 16. A pinion 70 is secured upon the enclosed end of the shaft 66 and meshes with an internal ring gear 71 which is secured to the shaft 7 2. The extension 69 is formed with a hollow hub portion 73 in which is carried a clutch, and one end of the shaft 72 extends into such clutch housing. The shaft 72 is supported in a bearing 74 in the extensions 69 and a bearing 7 5 in the casing 68. The pulley, pinion and ring gear provide speed reduction transmitting mechanism which can be continuously in operation during the operation of the machine. I

A clutch element 76 is secured upon the end of the shaft 72 and cooperates with another clutch element 77 which is secured to a shaft 78, which is in axial alignment with the shaft 72 and extends through a bearing in an end closure plate 79 removably secured to the open end of the clutch housing. An eccentric 80 is secured to the projecting end of the shaft 7 8 and the link 61 is pivotally se- Rotation of the shaft 78 will therefore reciprocate the link 61 and operate the primary and secondary feeding mechanisms above referred to and described.

The clutch element 76 is provided with an annular recess 81 at one end into which a re 7 duced portion 82 of the clutch element 7 8 extends. The clutch element 76 is provided with a plurality of annular apertures 83 which extend axially therewith and are arranged in a circle about the axis so that the portions thereof extending through the recessed portion will be semi-circular. The clutch element is provided with an aperture 84 adapted to be aligned with anyone of the apertures 83 in the clutch element 76, and the portion of the aperture 84 extending in the reduced portion of the element is semi-circular. A clutch pin 85 is provided with an annular portion which is mounted in the annular aperture 84 in the clutch element 77 and with a semi-circular end portion 86 which is mounted in the semi-circular portion of the aperture 84. An arm 87 extends from the outer end of the pin and a control member 88 is reciprocably mounted in the clutch casing so as to be moved into and out of position to engage the pin arm to rotate the pin. A bell crank 90 is pivoted to the casing at 91 and is pivotally connected at 92 to reciprocate the control member 88. A spring 93 is connected to the bell crank and the control member to normally retain the control member in its innermost position. A wire connection 94 is secured at one end to the bell crank 88 and at the other end to a treadle 95, which is pivoted to the supporting frame to be conveniently manipulated by the foot of the operator of the typewriting machine.

When the treadle is pressed down the conncction 94 will operate the bell crank and move the control member 88 outwardly, which will permit a coil spring 96 attached tothe control member 85 and the clutch member 7 7 to automatically rotate the control member so that the semi-circular portion will extend into the semi-circular aperture of the clutch member 76 and thereby provide a driving connection between the clutch members. When the treadle is released the control member will move into the path of the pin extension and will move it, as it engages therewith, so that the semi-circular portion of the pin will not engage in the apertures in the clutch member 76, and thus the driving connection Will be broken. Thus by pressing down on the treadle and then releasing it, the clutch members will be automatically engaged so that the element 77 and its shaft 7 8 will be driven one revolution, whereupon the pin 88 will be engaged by the control memberand stop the rotation of the element 7 7 until the operator again presses the treadle down.

The mechanism for driving the primary and secondary feeding devices are so arranged that one revolution of the shaft 78 will operate them one complete movement to feed a work member from a source of supply into position on the platen for a typing operation.

It will thus be seen that the operator needs only to press on the treadle to causethe mechanism to automatically feed work members successively to the typewriter platen, and to automatically release after each actuation so that typing can be done thereon before the next work member is fed to the platen. The operator is saved the time and effort of operating the feeding mechanism manually, thus materially increasing the quantity of work members which can be typed with this arrangement, over the heretofore manuallyoperated arrangement.

Various changes can be made in the details and arrangement of parts herein described and illustrated without departing from the spirit of my invention and the scope of What is claimed.

What I claim is 1. The combination of a typewriting machine, having a carriage and a platen; a work feeding device adapted to supply Work members successively to said machine for a typing operation, said feeding device comprising an electric motor for operating said feeding device and for rotating the platen of said machine and reciprocating and rotating means connected with the typewriter carriage in order to feed a work member into a position with the platen for a typing operation and to eject the preceding Work member, speed reduction gearing driven'loysaid motor; and a clutch connectin said gearing with said means, said ClIItCh bGiHg manually operated to provide a driving connection and being automatically released after each driving connection when said mechanism has been actuated a complete movement.

2. The combination of a typewriting machine, having a carriage and a platen; a work feeding device adapted to supply work members successively to said machine, of an electrically driven motor for driving the feeding device, reciprocatingand rotating means connected with the typewriter carriage and with said feeding device so as to actuate the latter, said reciprocating means being ar ranged so as to efiect the actuation of said feeding means during one stroke and themtation of the typewriter platen during its other stroke; a clutch interposed between the motor and the feeding device and means operable by the operator to set the reciproeating means in motion to feed the work to the typewriter platen. H

In testimonywhereo'f I affix my signature.

o Y HARRY L. WOOD.

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