US3330395A - Rolling contact stencil cutting machine with hinged body parts - Google Patents

Description

Jul 11, 1967 J. A. WEBER JR 3,330,395

ROLLING CONTACT STENCIL CUTTING MACHINE WITH HINGED BODY PARTS Filed Sept. 29, 1964 4 SheetsSheet 1 July 11, 1967 J. A. WEBER, JR 3,330,395

ROLLING CONTACT STENCIL CUTTING MACHINE WITH HINGED BODY PARTS Filed Sept. 29, 1964 4 Sheets-Sheet 2 Jill/62215071 7552 015 J5? 71 July 11, 1967 J. A. WEBER. JR

ROLLING CONTACT STENCIL CUTTING MACHINE WITH HINGED BODY PARTS Filed Sept. 29, 1964 4 Sheets-She9t I 3 July 11, 1967 J. A. WEBER, JR 3,330,395

CIL CUTTING MACHINE WITH HINGED BODY PARTS ROLLING CONTACT STEN m J s A 9 l 9 2 .L govt S Q q 1 1 F I United States Patent 3,330,395 ROLLING CDNTACT STENCIL CUTTING MACHINE WITH HTNGED BODY PARTS Joseph A. Weber, Jr., Des Plaines, Ill., assignor to Weber Marking Systems, Inc., a corporation of Illinois Filed Sept. 29, 1964, Ser. No. 499,255 Claims. (Cl. 1976.4)

This invention relates to a new and improved stencil cutting machine.

The cutting of stencils of the type wherein a coating material is removed has ordinarily been accomplished by a typewriter or by a manually operable stencil cutting stylus. Both of these cutting devices produce only thin lined letters or figures. The present machine is a great step forward in the industry of stencil cutting and contemplates the removal of greater areas of the stencil coating by a machine without damaging the base fibers of the stencil sheet.

A principal object of the present invention is to provide a novel stencil cutting machine in which easy access may be had to the type characters used in the cutting of the stencil.

An important object of this invention is the provision of a novel stencil cutting machine having a main Supporting frame and an auxiliary frame hingedly mounted on the main frame so that movable type characters carried in the auxiliary frame can be moved to and from a position in superposed position over a stencil receiving table carried on the main frame.

Another important object of this invention is to provide a stencil cutting machine with a main frame having a novel stencil receiving table thereon and means for exerting substantial pressures across an aperture in the table for cooperation with movable type elements carried in a hingedly mounted auxiliary frame.

Other and further important objects and advantages will be apparent from the disclosures in the following specification and accompanying drawings.

FIGURE 1 is a side elevational view of the stencil cutting machine of this invention.

FIGURE 2 is a side elevational view of the stencil cutting machine of FIGURE 1 with the auxiliary frame swung away from its superposed position over the main frame as shown in FIGURE 1.

FIGURE 3 is a longitudinal front to back sectional view taken through the stencil cutting machine of FIG- URE 1.

FIGURE 4 is a front elevational view of the device as shown in FIGURE 1.

FIGURE 5 is a side elevational view of the stencil cutting machine of this invention opposite to that shown in FIGURE 1.

FIGURE 6 is a top plan view of the stencil cutting machine as shown in FIGURE 2 with the auxiliary frame in an outwardly swung position.

As shown in the drawings:

The reference numeral 10 indicates generally a main frame or supporting structure which is preferably made as a metal casting. The frame 10 is substantially hollow in order to minimize the weight of the machine and to provide for a housing for the operating parts of the stencil cutting machine. The main frame 10 is provided with spaced apart front feet or table engaging pads 11 and 11a. Similarly the supporting structure 10 is provided with spaced apart rear feet or table engaging pads 12 and 120 so that the main frame is supported in a stable manner to permit the cutting of stencils thereon. The main frame 10 is provided with upper side edges 13 which act to receive a generally fiat horizontally disposed stencil receiving table 14. It is on this table that the stencil to be cut is placed.

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The table 14 is arranged and constructed to be incrementally adjusted longitudinally relative to the top 13 of the supporting structure 10. An aperture 14a is provided in a generally central portion of the table 14 for the purpose of permitting the application of Substantial pressures upwardly through the table to engage the stencil and thereupon effect a cutting thereof by reason of the stencil engaging type characters. The type characters will subsequently be described and shown to be arranged and positioned above the table aperture. The longitudinal incremental movement of the table 14 thus provides for the line spacing of the stencil as it is being cut with various indicia.

A stencil clamping means 15 is mounted on the forward edge of the table 14 and is arranged and constructed to have transverse sliding movement therealong. The stencil clamping elements are shown at 15a and 1512. An edge of a stencil to be cut is placed between the gripping members 15a and 1512 while the body portion of the stencil is adapted to extend rearwardly over the table 14. The clamping member 15 is arranged to be incrementally moved along the forward edge of the table 14 to thereupon obtain proper letter spacing for the stencil indicia.

The main frame or supporting structure 10 is provided with spaced apart hinge ears 16 and 16a which project generally upwardly at the rear thereof. A hinge pin 17 is disposed generally transversely of the main frame 10 and passes through aligned apertures in the spaced apart hinge ears 16 and 16a. An auxiliary frame or supporting structure 13 is arranged and constructd to be hingedly mounted relative to the main frame It in such a manner that the auxiliary frame may be positioned in a superposed position over the main frame as shown in FIG- URES 1, 3, 4 and 5 or in an outwardly swung position such as shown in FIGURES 2 and 6. The auxiliary frame is provided with spaced apart rearwardly projecting ears 18a and 18b which are joined by a cross member at their outer ends. The spaced apart ears 18a and 18b are provided with aligned apertures to permit the passage therethrough of the hinge pin 17 such as particularly shown in FIGURE 6. The ears 18a and 18b are adapted to lie between and in generally closely abutting relationship to the inner edges of the spaced apart ears 16 and 16a respectively which form a part of the base main frame 10. Thus the auxiliary frame 18 is hingedly mounted relative to the main frame 10 about the hinge pin 17 so that as previously stated the auxiliary frame may be disposed in either a position where it is in close superposition relative to the main frame or outwardly swung away from its position over the stencil receiving table on the main frame.

The auxiliary frame is adapted to carry a disc 19 on its underside. The outer periphery of the disc has embossed type characters 20 thereon such as shown in FF- URES 3 and 6. A hand engaging knob 21 is provided at the top of the auxiliary frame 18 and by means of a set screw or pin 22 is adapted to be afiixed to a generally vertically disposed spindle 23 on which the disc 1% is mounted for concurrent rotation. The spindle 23 is journally supported within a generally vertically disposed and elongated bushing 18d of the auxiliary frame 18. Thus the type carrying disc 19 may be manually rotated by an engagement of the hand knob 21 to thereupon place any one of the type characters 20 in proper position to act as the means for cutting or removing the stencil coating in this machine. A generally centrally disposed block 18s is bolted to the auxiliary frame 18 as shown at 18 at the front center position of the auxiliary frame. It is beneath this block 18e that the selected type character 2% on the disc 19 must be placed in order to effect a stencil cutting in this machine.

The main frame 10 is provided with generally cylindrically shaped bosses 24 and 24a formed on both sides thereof as shown in FIGURE 6. These sleeve-like bosses are internally threaded. The auxiliary frame 18 is provided with similarly transversely spaced apart bosses 25 and 25a which are each provided with apertures arranged and constructed to lie in axial alignment with the internally threaded holes in the sleeves 24 and 24:! on the main frame when the auxiliary frame is in superposed position over the stencil receiving table 14 of the main frame. Cap screws 26 and 26a are employed to pass through the apertures in the Wing- like bosses 25 and 25a of the auxiliary frame 18 for threaded engagement with the internal threads in the sleeve- like bosses 24 and 24a of the main frame to thereupon rigidly hold the auxiliary frame in fixed position relative to the main frame as it is shown in FIGURES 1, 3, 4 and 5 of the drawings. When it is desired to gain access to the type carrying disc 19 for replacement or servicing or to gain more ready access to the operating mechanisms of the device to be subsequently described, the cap screws 26 and 26a are removed and the auxiliary frame 18 swung upwardly and rearwardly such as shown in FIGURES 2 and 6. In this open position it is obvious that the movable type carrying mechanism may be entirely removed and replaced with different sizes or styles of type or may be merely cleaned or serviced as necessary. When the machine is again to be used in its stencil cutting function the auxiliary frame is swung downwardly about its hinge 17 and the cap screws 26 and 26a replaced. In this closed position the stencil may be cut. The cutting operation utilizes a back-up block or plate 18a to contain the pressure which is utilized to impress the stencil against the particular type character 20 to be cut in the stencil.

The device of this invention is operated by a lever 27 ,7 having a hand engaging knob or handle 28 such as shown in FIGURES 4 and 6. The lever 27 is bent at right angles as shown in FIGURE 6 so that its right angle extension indicated by the numeral 29 constitutes a shaft which is journally supported in bushings 29a and 12% mounted respectively in the spaced apart ears 16 and 16a of the main frame at a position spaced forwardly of the hinge pin 17 and generally near the bottom of the main frame. Adjustable collars 290 are arranged on the shaft 29 to flank both sides of the wall member 16 whereby the shaft may be accurately adjusted within the frame.

As best shown in FIGURES 3 and 6 the shaft 29 has mounted thereon a lever 30 which in a non-actuating position is as shown in full lines in FIGURE 3. When the hand lever 27-28 is pulled forwardly toward the stencil receiving table 14 the lever arm 30 is rocked to a position as shown in dashed lines in FIGURE 3 by reason of rotation of the shaft 29. A link means 31 comprises spaced apart arm members 31a and 31b which are fastened by means of a cross pin 32 to the upper end of the lever arm 30. This link means 31 extends forwardly within the base housing 10 for ultimate connection to a pressure urging roller mechanism 33. The roller mechanism 33 includes an outer race member 33a, a plurality of anti-friction ball members 33b and an inner race or hub 330 as best shown in FIGURE 6. The hub 33c is substantially wider than the outer race 33a and the extensions formed on both sides of the centrally located roller are utilized to cooperate with a cammed surface to cause a raising of the roller mechanism 33 for the purpose of applying pressures through the aperture 14:: in the stencil receiving table 14 to cause stencil cutting in a manner to be subsequently described. The link members 31a and 31b are bent or flared outwardly intermediate their ends as shown at 31c and their forward ends 31d flank the outer sides of the hub 33c. A rivet or pin means 34 fastens the link arms 31a and 31b to the hub 330. A rocking movement of the lever arm 31) from its full line position to the dashed line position as shown in FIGURE 3 will cause the roller mechanism 33 to move forwardly in the device of this invention.

The cam mechanism constitutes a generally U-shaped block member 35 with spaced apart track or rail members 35a and 35b. The rearward ends of the rails 35a and 35b have their top surfaces 35c inclined upwardly and forwardly whereupon the top surfaces are generally horizontally disposed as shown at 35d at their outer forward ends. It is upon these track-like surfaces 35a and 35b that the laterally extending hub portions 330 of the roller means 33 ride to cause the roller means through its outer race 33a to exert substantial pressures upwardly through the aperture 14a in the stencil holding table 14. The generally U-shaped block 35 with a base 35e is confined by longitudinally spaced apart bosses 36 and 37 which form a part of the base housing 10. A bottom plate 38 is fastened to the longitudinally spaced boss members 36 and 37 by cap screws 39 and define a space 40 within which is carried a mechanism to cause accurate vertical adjustment of the block member 35 so that various thicknesses of stencil sheets may be accommodated and so that only the stencil coating is removed in the stencil cutting process without causing damage to the porous base tissue sheet of the stencil.

The chamber 40 includes a longitudinally adjustable wedge block 41 the inclined top surface of which lies against the similarly inclined lower surface of the bottom 35a of the generally U-shaped block 35. These mating inclined surfaces provide the wedge adjusting means for the micrometer-like vertical positioning of the block 35. An elongated screw member 42 is threadedly engaged to and within the wedge block 41. As shown in FIGURE 3 the block 41 abuts the end boss 36 and thus has raised the block 35 its maximum distance. The block 35 may be lowered by rotating the screw 42 and causing the wedge block 41 to move forwardly in the chamber 40 to thus permit the block 35 to drop. The adjustment is preferably made by manually inserting a screwdriver through an aperture 43 in the front skirt of the housing 10 and into a screw slot 44 in the forward end of the elongated screw 42.

In the operation of the device of this invention a stencil 45 to be cut is placed on the table 14. The clamp elements 15a and 1512 are separated by depressing a handle of the member 15a about a hinge 15d. A spring 15e is arranged about the hinge 15d in a manner to cause the jaws 15a and 15b to be urged together. An incrementally releasable ratchet mechanism 46 is disposed intermediate the table 14 and the clamping member 15 such that the clamping member may be adjustably moved transversely of the table 14. The stencil 45 extends beneath the block 182 of the auxiliary frame 18 and has individual type characters 20 cut therein at that position. The desired letter is selected and then manually positioned beneath the block 18e by rotation of the hand knob 21. Now the hand lever 27-28 is swung forwardly causing the pressure roller to be camrned upwardly and thence longitudinally of the opening 14a. The roller causes the stencil sheet to be rolled against a selected letter on the disc 19 with the block 18:: as the reactance member. In order that the selected letter 20 be centered in the stencil cutting location the disc 19 is locked in position by a locking pin 47 moving into engagement in socket apertures 47a in the disc 19 thereupon prohibiting rotation of the disc 19. The device is arranged to automatically lock during application of the stencil cutting pressures by the roller means 33. A second ratchet means 48 is mounted longitudinally 'of the base 10 beneath the table 14 so that upon compleafter first removing the cap screws 26. This stencil cutting machine construction with the feature of the hinge joining of two frame parts contributes greatly to the success of the cutter.

An adjustable screw a is threadedly carried by the crank 30 and is adapted to limit the throw of the hand lever 2728. The screw 30a is arranged to engage a lug 30b formed integrally with the frame structure 10. Greater or lesser arcuate movement may be accomplished by greater or lesser extensions of the end of the threaded set screw 30a.

I am aware that numerous details of construction may be varied throughout a wide range without departing from the principles disclosed herein and I therefore do not propose limiting the patent granted hereon otherwise than as necessitated by the appended claims.

What is claimed is:

1. A stencil cutter comprising a main frame, a generally horizontally disposed stencil cutting bed on said main frame, an auxiliary frame, a horizontally disposed hinge pin hingedly mounting said auxiliary frame on said main frame for swinging through a vertical arc, said auxiliary frame arranged and constructed in one position thereof to lie in a fixed superposed position over and adjacent the bed of the main frame and in another position thereof to be spaced from said bed, said auxiliary frame carrying type for movement thereon, means holding a stencil on said main frame in a fixed relationship to the bed of said main frame, means for securely holding said auxiliary frame in said fixed superposed position over said bed during cutting of said stencil positioned between said bed on the main frame and selected type on the auxiliary frame, and means on the main frame supplying pressure to effect a cutting of said stencil.

2. A stencil cutter comprising a main frame, a generally horizontally disposed stencil cutting bed on said main frame, means on said main frame to exert a stencil cutting pressure at the position of said bed, an auxiliary frame, a horizontally disposed hinge pin hingedly mounting said auxiliary frame on said main frame for swinging through a vertical are, said auxiliary frame arranged and constructed in one position thereof to lie in a fixed superposed position over and adjacent the bed of the main frame and in another position thereof to be spaced from said bed, said auxiliary frame journally supporting a type carrying wheel, means holding a stencil on said main frame in a fixed relationship to the bed of said main frame, means for securely holding said auxiliary frame in said fixed superposed position over said bed during cutting of said stencil positioned between said bed and selected type on the type carrying wheel, and means actuating said means to exert a stencil cutting pressure on the stencil against said selected type.

3. A stencil cutter comprising a main frame, a generally horizontally disposed stencil cutting bed on said main frame, an auxiliary frame, a horizontally disposed hinge pin hingedly mounting said auxiliary frame on said main frame and arranged and constructed in one position thereof to lie in a fixed superposed substantially parallel position over and adjacent the bed of the main frame and in another upwardly facing position of at least 90 degrees to the bed of said main frame, said auxiliary frame carrying type for movement thereon, means holding a stencil on said main frame in a fixed relationship to the bed of said main frame, means for fixedly holding said auxiliary frame in said superposed position over said bed during cutting of said stencil positioned between said bed on the main frame and selected type on the auxiliary frame, means on the main frame supplying pressure to effect a cutting of said stencil, and means for removing said type from said auxiliary frame in said another position thereof.

4. A stencil cutter comprising a main frame, a generally horizontally disposed stencil cutting 'bed on said main frame, means on said main frame to exert a stencil cutting pressure at the position of said bed, an auxiliary frame, a horizontally disposed hinge pin hingedly mounting said auxiliary frame to said main frame, said auxiliary frame journally supporting a removable type carrying disc, said auxiliary frame arranged and constructed in one position of hinging to lie in a fixed superposed position over and adjacent the bed of the main frame for stencil cutting and in another position thereof to be spaced upwardly from said bed for removing and servicing the type carrying disc, means holding a stencil on said main frame in a fixed relationship to the bed of said main frame, means for holding said auxiliary frame in said fixed superposed position over said bed during cutting of said stencil positioned between said bed and selected type on the type carrying wheel, and means actuating said means to exert a stencil cutting pressure on the stencil against said selected type.

5. A stencil cutter comprising, a main frame, a pair of vertically positioned bosses secured on opposite sides of said main frame, a generally horizontally disposed stencil cutting bed on said main frame between said bosses, means below the plane of said bed for exerting an upward stencil cutting pressure through the plane of said bed, an auxiliary frame, hinge mounting means hingedly supporting one side of said auxiliary frame on one side of said main frame so that said auxiliary frame is manually pivotable to one position with the underside of said auxiliary frame disposed over said bed and to a second position with said underside disposed upwardly away from said bed, the pivotal axis of said hinge mounting means disposed parallel to a line between said bosses, a removable type carrying disc carried through said auxiliary frame with said type positioned to depend from the underside of said auxiliary frame, said auxiliary frame having portions overlying said bosses in said one position, said bosses being formed of a height to engage the underside of said portions when said type is positioned substantially immediately above the plane of the upper surface of any stencil carried on said bed, and removable securing means carried by said bosses and cooperating with said portions to removably secure said auxiliary frame relative to said main frame.

References Cited UNITED STATES PATENTS 115,763 6/1871 Moody 197--6.4 1,131,956 3/ 1915 Remnsnider l976.7 1,146,852 7/1915 Dick 101128.4 1,164,750 12/1915 Remnsnider 197--6.7 1,296,511 3/ 1919 Hasbrouck 1976.4 1,308,941 7/1919 Fanslow 197-6.4 1,357,090 10/ 1920 Hasbrouck 197-6.4 2,067,702 1/1937 Marsh l976.7 2,300,297 10/1942 Lampson 1976.4 2,324,662 7/1943 Aaron 101-1284 X 2,331,978 10/ 1943 Hempel et al 197-6.7 X

ROBERT E. PULFREY, Primary Examiner.

E. S. BURR, Assistant Examiner.

Claims (1)

1. A STENCIL CUTTER COMPRISING A MAIN FRAME, A GENERALLY HORIZONTALLY DISPOSED STENCIL CUTTING BED ON SAID MAIN FRAME, AN AUXILIARY FRAME, A HORIZONTALLY DISPOSED HINGE PIN HINGEDLY MOUNTING SAID AUXILIARY FRAME ON SAID MAIN FRAME FOR SWINGING THROUGH A VERTICAL ARC, SAID AUXILIARY FRAME ARRANGED AND CONSTRUCTED IN ONE POSITION THEREOF TO LIE IN A FIXED SUPERPOSED POSITION OVER AND ADJACENT THE BED OF THE MAIN FRAME AND IN ANOTHER POSITION THEREOF TO BE SPACED FROM SAID BED, SAID AUXILIARY FRAME CARRYING TYPE FOR MOVEMENT THEREON, MEANS HOLDING A STENCIL ON SAID MAIN FRAME IN A FIXED RELATIONSHIP TO THE BED OF SAID MAIN FRAME, MEANS FOR SECURELY HOLDING SAID AUXILIARY FRAME IN SAID FIXED SUPERPOSED POSITION OVER SAID BED DURING CUTTING OF SAID STENCIL POSITIONED BETWEEN SAID BED ON THE MAIN FRAME AND SELECTED TYPE ON THE AUXILIARY FRAME, AND MEANS ON THE MAIN FRAME SUPPLYING PRESSURE TO EFFECT A CUTTING OF SAID STENCIL.

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