US544193A

US544193A - Stencil-cutting machine

Info

Publication number: US544193A
Authority: US
Publication date: 1895-08-06
Anticipated expiration: 1912-08-06

Description

(No Model.)

2 Sheets-Sheet 1. O. K. PIOKLESUKB J. A. HOFP. TBNG IL CUTTING MACHINE No. 544,193., Pat ented Aug. 6,1895.

(No Model.) 2 SheetsSheet 2.

G. K. PICKLES & J. A. HOFP.

STENCIL CUTTING MACHINE.

UNTTED STATES ATEN OFF CHARLES K. PICKLES AND JOHN A. HOFF, OF ST. LOUIS, MISSOURI, ASSIGN- ORS, BY MESNE ASSIGNMENTS, TO THE AMERICAN STENCIL MACHINE COMPANY, OF EAST ST. LOUIS, ILLINOIS.

' STENCIL-CUTTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 544,193, dated August 6, 1895. Application filed October 18, 1894. Serial No. 526,30 (No model.)

To all whom it may concern; within which is vertically positioned a bolt Be it known that we, CHARLES K. PIOKLES 13, having ashonlder 14 nearest its lower end andJoHN A. IIOFF, citizens of the United portion, adapted to impinge against the up- States, and residents of St. Louis, in the State persurface ofsaid hub, and held in its seatby of Missouri, have invented new and useful means of nuts 15, mounted on the screw- 55 Improvementsin Stencil-CuttingMachines,of threaded lower end portion of said bolt.

which the following is a specification. Mounted for rotation horizontally on the The object of our invention is to provide bolt 13 and resting on the shoulder'li of said improved means for cutting stencil-letters in bolt 13 is a matrix-plate 16, having a central [0 sheets of paper, cardboard, and analogous vertically-apertured hub 17, forming thebear- 60 substances, and to feed the said card-board ing on said bolt, and transverse radial ribs 18, or stencil-sheet across the plane of the cutcast integral with said plate and hub, A rim ting mechanism in advance of the. cutting op- 19 is formed on and extends downwardly from eration. the periphery of the matrix-plate 16, which Our invention comprises a table, a matrixrim is vertically apertured in series and re- 65 plate mounted for horizontal rotation on said cessed in its upperface,a plurality of matrices table, a patrix-plate mounted for horizontal being mounted in the recess of said rim rotation on said table and locked to said maand secured to the plate by means of screws trix-plate, an index-ring, a yoke mounted for 21, as shown in detail in Fig. 2.

2 horizontal rotation independently of or con- Mounted upon the bolt 13, above the ma- 7o junotively with the patrix and matrix plates, iriX-plate 16, is a patrix-plate 22, which paa hand-lever mounted for oscillation in said trix-plate has a central vertically-apertured yoke and adapted for manual actuation, feedhub 23 resting on the hub 17, and secured ing mechanism adapted to be acted upon by thereto and adapted for horizontal rotation 5 said lever, and means whereby said lever may on the said bolt conjn-nctively with the ma- 7 be caused to successively and progressively intrix-plate. The patrix-plate is provided with dependently actuate the patrices. a plurality of radial strengthening-ribs 21 Ourinvention further comprises the conanda-peripheralupwardly-extendingintegral struction, arrangement, and combination of rim 25, in which rim a series of hubs is formed,

parts hereinafterset forth, pointed out in our each of which hubs is vertically apertured 8) claims, and illustrated by the accompanying and has mounted therein a patrix 26, which drawings, in which patrix is adapted for vertical reciprocation in Figure 1 is a plan view showing the device its seat, the series of patrices vertically alignin position for actual use. Fig. 2 is a. deing with the series of matrices 20. Each patailed plan of a portion of the matrix-plate. trix 26 is provided with a head 27 on itslower 8 Fig. 3 isasectional elevation on the indicated end, which head carries a symbolical configline 3 3 of Fig. 1. Fig. 4 is a front elevation uration coincident with the aperture'repreof the feeding mechanism. Fig. 5 is a secsenting a symbolical configuration in the ma tional elevation of the feeding mechanism. trix 20 beneath the same, and a retractile 0 Fig. 6 is a detailed elevation in section of the spring 28, one end of which spring -is passed or; cutting and feeding mechanismsin one posithrough a perforation transversely located in tion. Fig. 7 is a detailed elevation in section the upper portion of the patrix, the opposite of the cutting and feeding mechanisms in anend of said spring being seated in a guideother position. Fig. 8 is a detailed sectional rim 29 on the patrixplate. Recesses 30 3O plan on theline 8 8 of Fig. 3. Fig. 9 is an are formed in the inner and outer faces, re- 95 elevation of the patrix-operating bolt. spectively, of the patrix 26 near the upper In the construction of the machine as shown end of said patrix, for a purpose hereinafter the numeral 10 designates a table having a to be explained. central concave-convex portion 11, centrally The guide-rim 29 is located on'and fixed to apertured and provided with abossed hub 12, the radial ribs 21 of the patrix-plate, and is 10::

provided with aseries of upwardly-extending inclined posts or studs 31 corresponding in number with the patrices 26 and providing spaces in radial alignment with said patrices. The perimetal edges of the posts 31 are attenuated, thus providing flaring sides for the spaces between said posts.

An index-ring is formed integral with the guide-rim 29, which index-ring is designated as 32 and bears upon its upper surface symbols corresponding with the symbolical configurations of the patrices and matrices.

The index-ring, guide-rim, patrices, and matrices are concentric with the bolt 13 and have a common vertical axis, which is the axis of said bolt. A collar 33 is mounted loosely on the bolt 13 in contact with the upper surface of the hub 23, and a yoke-bar 34, having a central vertically-apertured hub 35, is mounted on the bolt 13 in contact with the upper surface of the collar 33, and is adapted for horizontal rotation on said bolt, being held to its seat by means of a washer 36 and nuts 37. The yoke bar is formed with a downwardly-turned bossed end portion 38, having a flattened surface, which portion 38 rests upon and has a sliding bearing with a ring 39 formed on or fixed to the table 10 concentric with the depressed portion 11 of said table and vertically extending therefrom. The end portion of the yoke-bar 34 opposite to the portion 38 is bifurcated, and a handlever 40 is mounted for oscillation on a pin 41, transversely seated in said bifurcation, the lower portion of said hand-lever extending through said bifurcation and being provided with a tongue 42, adapted for engagement with the guide-posts 31. The yoke-bar 34 is provided with a vertically-apertured bossed portion 43, in which is mounted for vertical reciprocation a patrix-operating bolt 44, Fig. 9, which bolt has downwardly-extending converging arms 45 45, adapted for engagement in the recesses 30 30 of the patrices 26. The bolt 44 is transversely slotted at 46, and a boltlever 47, mounted on the pin 41 within a bifurcation 48 in the hand-lever 40 and having an arm 49, passes through said slot and has a limited vertical movement therein. The boltlever 47 has a notched arm 50, the notch in said arm being adapted to embrace a pin 51, transversely seated in the bifurcation of the lever 40, the dimension of said notch being materially greater than the diameter of said pin 51. A retractile spring 52, fixed at one end to the hand-lever 40 and at the other end to a stud 53, mounted on the yoke-bar 34, serves to retain the said lever in a vertical position.

The arm 49 of the bolt-lever 47 extends through and beyond the slot 46 in the bolt 44, and is pivotally connected at its extremity with the upper end of a bolt 57, mounted for vertical reciprocation in the extreme outer end of the yoke-bar 34. The lower end of the bolt 57 is conoidal and normally occupies a position in an aperture 58 in the ring 39, adjacent to the front of the machine, which aperture 58 connects with a slot 59, also formed in said ring. A trigger 60 is pivotally mounted at its lower ends on a pin 61, trans- Versely seated in the ring 39 below the slot 59, which trigger is provided with an apexed upper end 62, having an inclined forward face 63 normally in the vertical plane of the bolt 57. A retractile spring 64, fixed at one end to the ring 39 and at the other end to the upper end portion of the trigger 60, serves to retain said trigger in a normal position, the trigger being retained against lateral movement by engagement in the slot 59. A clip 65 is pivotally mounted at one end on a pin 66, seated horizontally in the ring 39, which clip is provided with an aperture 67 in the end thereof opposite to the pin 66, in which aperture is mounted an eccentric 68, pivoted on a pin 69 mounted in the ring 39, which eccentric has a handle 70 adapted for manual actuation to rotate the same. A pivotal pin 71 is transversely positioned in the central portion of the clip 65, and a feed-wheel 72 is pivotally mounted on said pin, which feed-wheel has integrally formed thereon a ratchet-wheel 73, Fig. 5. A gravity-pawl 74, having a hooked forward end 75, is fulcrumed on the upper end portion of the trigger 60 and engages with the teeth of the ratchet-wheel 73. An aperture 76 is formed in the table 10 in alignment with the feed-wheel 72, through which aperture projects a follower feed-wheel 77, having the apex of its perimeter flush with the upper surface of the table 10, the said wheel 77 being rotatably mounted in the forward end of a retractile leaf-spring 78, secured to and below the table 10. An expansive leaf-spring 79 is fixed at one end to the horizontal portion of the ring 39 and impinges at its other end against a laterally-extending lug 80 on the movable end portion of the clip 65, the tendency of said spring being to depress the said clip and hold the same in rigid engagement with the eccentric 68. A depressing spring-arm 81 is fixed at one end to the clip 65 above the eccentric 63, and extending rearwardly from said clip in the longitudinal plane thereof has pivotally mounted in its outer end aserrated guide-wheel 82, the resilience of said arm being adjusted by means of an adjusting-screw 83, mounted in said arm and impinging against the said clip. This arm and the wheel provide a trailer for supporting the rear end of the clip.

A series of perforations 84 are formed in the table 10 in a radial line longitudinally of said table from the axis of the bolt 13, which perforations are adapted to receive at different times a pin 85, by means of which pin a stencil-sheet 86 is provided with an axis of rotation and held in a fixed relation to the said table.

An index-finger 87 is fixed to and extends laterally from the hub 35 of the yoke-bar 34, the extremity of said finger being in vertical alignment with the index-ring 32.

The practical use of this machine involves an operation as follows: The stencil-sheet 86 is introduced beneath the feed mechanism and in alignment with and between the patrix and matrix plates by manual operation, the clip being first oscillated by the rotation of the eccentric 68 to elevate the feed-wheel 72 out of engagement with the follower 77, the said clip being repositioned, as shown in Fig. 4, after the insertion of the stencil-sheet. Ifit be desired to cut a series of apertures in the stencil-sheet concentric with the center of said sheet, the pin 85 is positioned as shown in Fig. 1, the sheet being held in engagement with the table at its peripheral portion by the gnide-wl1eel82 through the tension of the arm 81. The hand-lever 40 being in the position shown in Figs. 3 and 1, it is moved in an orbit concentric with the bolt 30 by manual operation until such time as the index-finger 87 indicates the symbol to be first employed on the stencil-sheet, at which time said handlever is oscillated into the positionshown by dotted lines in Fig. 3, thus bringing the tongue 42 of said lever into a space between two of the guide-posts 31, as designated in Fig. 6. A continuation of the orbital movement of the hand-lever 40 causes a rotation of the yoke-bar 34, patrix-plate 22, and matrix-plate 16 conjunctively, and such orbital movement is continued until the bolt 57 is brought into vertical alignment with the aperture 58 of the ring 39. At this time the hand-lever 40 is moved outwardly from the vertical, thus causing an engagement of the pin 51 with the outer arm of the bifurcated end portion 50 of the lever 47, thus oscillating said bolt-lever 47 on its fulcrum 41 and causing a depression of the outer end of the arm 49, which by reason of its pivotal connection with the bolt 57 depresses said bolt into engagement with the inclined face 63 of the trigger 60, this movement of depression being permitted independently of any movement of the bolt 44 by reason of the slot 46 in said bolt having a greater length than the vertical dimension of said arm 49. A continuation of the depressing movement of the bolt 57 after the engagement of said bolt with the inclined face 63 of the trigger 60 oscillates said trigger on its fulcrum 61, and by reason of the rigid connection of the pawl 74 and said trigger the said pawl is caused to engage with the ratchet-wheel 73 and rotate said ratchet-wheel, the movement of rotation of said ratchet-wheel being synchronously imparted to the feed-wheel 72, and the stencilsheet being retained between said feed-wheel and the follower 77 it follows that upon the rotation of said feed-wheel the stencil-sheet will be advanced, the line of advance being determined by the engagement of the guidewheel 82 and its relation to the pin 85. The further oscillation outwardly of the handlever 40 brings the arm 49 of the lever 47 to the limit of the slot 46 in the bolt, 44 and causes an engagement of said arm with said bolt, which depresses the said bolt in contact with the patrix 26 in alignment-therewith and through the resilience of the spring 52 in a vertical position, the engagement of the pin 51 with the inner .arm of the lever 47 oscillating said lever 47 and causing the arm 49 thereof to elevate the bolts 44 57, and by reason of the engagement of the hooks 45 in the recesses 30 of the patrix also elevating said patrix, the said elevation of said patrix being assisted by the resilience of the spring 28.

A succession of the above-described movements will result in the successive and progressive formation of letters and symbols in the stencil-sheet.

When it is desired to form parallel transverse lines of perforations in the stencil-sheet, the pin 85 is removed and the said sheet permitted to cross the table 10 under the influence of the feed mechanism and the guide wheel.

What we claim is- 1. A stencil cutting machine comprising a table, matrix and patrix plates mounted for conjunctive rotation on said table and separated a short distance from each other, a yokebar mounted for rotation independently of or conjunctively with said plates, patrices mounted in said patrix plate and adapted for vertical reciprocation therein, an operating bolt mounted in said yoke bar, a hand-lever fulcrnmed in said yoke bar and adapted for manual actuation, a bol -lever fulcrnmed in said hand-lever, connections between said levers, and feed mechanism and means whereby the feed mechanism is connected with said bolt-lever as set'forth.

2. In a machine of the class described a yoke-bar having a bifurcated end portion, a hand-lever mounted for manual oscillation in the bifurcation of said yoke-bar and having a bifurcated portion, a bolt-lever mounted in the bifurcated portion of the hand-lever and having a common fulcrum therewith and a notched end portion, a pin in said hand-lever having a travel in said notch and engagement with the bolt-lever, patrix and matrix plates, patrices, an operating bolt, and a table.

3. In a machine of the class described a table having a vertically extending ring, an axial bolt, patrix plate having guide-posts and matrix plate mounted on said axial bolt within said ring, a yoke bar mounted on said axial bolt and in engagement with said ring at both ends, which yoke bar is provided with a bifurcated portion, a hand-lever mounted insaid bifurcated portion of said yoke bar the patrix operating bolt, means for operating the latter from the hand-lever and a tongue on said handlever forming aconnection between said yoke bar and the guide posts of the patrix plate.

4. In a machine of the class describedapatrix plate having a series of patrices therein, a yoke bar located above said patrix plate, an operating bolt mounted for vertical reciprocation in said yoke bar and mechanism whereby said operating bolt is caused to engage individual patrices consisting of a hand-lever, a bolt-lever engaging the bolt, a pivot pin common to both of the levers whereby the latter are pivoted to the yoke-bar, and pin and slot connection between the levers.

5. In a machine of the class described a patrix having oppositely arranged transverse recesses, and operating bolt having engaging arms adapted to embrace the recessed portion of said patrix and mechanism whereby said bolt and patrix are conjunctively operated consisting of a supporting bar, a hand-lever, a bolt-lever engaging the bolt, a pivot-pin common to both of the levers whereby the latter are pivoted to the bar, and pin and slot connection between the levers.

6. In a machine of the class described an operating bolt having a transverse slot, a boltlever extended through said slot and means whereby said bolt-lever is oscillated to reciprocate said bolt consisting of a supporting, bar, a hand-lever, a pivot pin common to both of the levers whereby they are pivoted to the bar, and a pin and slot connection between the levers.

7. In a machine of the class described, the combination of a table having a ring formed with an aperture, a bolt operated through the aperture and mechanism comprising the mating feed-wheels located respectively above and beneath the table, a ratchet located on the upper feed-wheel and a trigger pivoted to the ring and having an apexed upper end formed with an inclined forward face normally in the vertical plane of the bolt, a pawl pivoted to the trigger and engaging the ratchet, and a spring for returning the trigger to normal position, substantially as described.

8. In a machine of the class described, the feeding mechanism comprising mating feedwheels located respectively above and beneath the table, a ratchet located on the upper feed wheel, an upwardly extending trigger having the inclined face at the top thereof, and a pawl pivoted to the trigger and overhanging and engaging the ratchet, an operating bolt adapted to engage the inclined face of the trigger and to oscillate the latter, a bolt-lever, and a hand-lever connected with the boltlever; substantially as described.

9. In a machine of the class described, the feeding mechanism comprising mating feedwheels located respectively above and beneath the table, a ratchet located on the upper feedwheel, an upwardly extending trigger having an inclined face at the top thereof, a pawl pivoted to the triggerand overhanging and engaging the ratchet, a clip on which the upper feed-wheel is mounted, a spring holding down the clip, and an adjustable trailer su ppor ting the rear end of the clip, an operating bolt adapted to engage the inclined face of the trigger and to oscillate the latter, and mechanism whereby the bolt is reciprocated.

10. In a machine of the class described, the combination of a support, a patrix, a boltlever, an operating bolt having a slot of greater depth than the width of the arm of the boltlever passing therethrough, a feeding mechanism, a bolt operating the feeding mechanism, and connected with the bolt of the feeding mechanism, so as to depress it in advance of the slotted bolt, a hand-lever having a pivot in common with the bolt-lever, and means for connecting the levers; substantiallyas described.

In testimony whereof we hereunto have set our hands at St. Louis, Missouri.

CHARLES K. PICKLES. JOHN A. HOFF. In presence of S. (1. SWEET,

L. J. BARLoW.