US2940349A - Lead rule broacher with adjustably positioned work carriage - Google Patents

Description

June 14, 1960 l.. v. YORK ErAL 2,940,349

LEAD RULE BROACHER WITH ADJUSTABLY PosITIoNED woRx CARRIAGE Filed May 2, 1958 3 Sheets-Sheet l June 14, 1960 L. v. YORK ETAI- LEAD RULE BROACHR WITH ADJUSTABLY POSITIONED WORK CARRIAGE Filed May 2. 1958 3 Sheets-Sheet 2 June 14, 1960 L. v. YORK ErAL 2,940,349

LEAD RULE BROACHER WITH ADJUSTABLY POSITIONED WORK CARRIAGE Filed May 2, 1958 3 Sheets-Sheet 3 INV ENTOR5 .V/Ya rC i Tij@ L' .Ludlum United States Patent LEAD RULE BROACHER WITH ADJUSTABLY POSITIONED WORK CARRIAGE Leslie V. York, 132 N. 4th St., and Loren F. Ludlum,

115 N. 7th St., both of Fredonia, Kans.

Filed May 2, 1958, Ser. No. 732,742

3 Claims. (Cl. 83-207) This invention relates to a machine of extremely simple construction for accurately breaching or punching lead rule.

More particularly, it is an aim of the present invention to provide a lightweight, portable machine of extremely simple construction capable of being inexpensiveiy manufactured so as to make it available to small print shops and individual printers, yet which is so constructed that it will provide an extremely accurate machine for correctly punching notches or broaches in an edge of a lead rule.

Another object of the invention is to provide a machine of extremely sturdy construction which may be simultaneously used for punching either single or double notches or broaches in an edge of a lead rule for receiving either a single or a double line, respectively, breaching wire.

A further object of the invention is to provide a machine wherein a carrier supports the lead rule to be breached and is adjustable relative to the punches so that after setting the carrier, and without further adjustment of the machine, a number of lead rules can be provided with either single or double breaches and such broaches or notches will he identically positioned in each rule.

A further object of the invention is to provide a machine wherein no changes or adjustments are required for punching either the single or double type notch or broach.

A further object of the invention is to provide a machine having a scale and pointer, associated with the scale, and which parts are so disposed that the position of each of the punches, relative `to the rule, is always clearly visible to the machine operator.

A further object of the invention is to provide a rnachine having a means for locking the adjustable rule carrier in any adjusted position of the carrier and the lead rule, supported thereby, relative to the two punches so that a number of the lead rules can be uniformly punched without changing the adjustment of the machine.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawings, illustrating a presently preferred embodiment thereof, and wherein:

Figure l is a top plan view of the machine;

Figure 2 is a front elevational View thereof, partly in vertical section;

Figure 3 is an enlarged fragmentary rear elevational iew of the intermediate portion of the machine;

Figure 4 is an enlarged end elevational view, partly in vertical section, looking from right to left of Figure 2;

Ficure 5 is a fragmentary horizontal sectional view, partly in top plan, of the intermediate portion of ythe machine, and on an enlarged scale, taken substantially along the line 5 5 of Figure 2;

Figure 6 is an enlarged fragmentary vertical sectional view taken substantially along a plane as indicated by the line 6-6 of Figure 2;

Patented June 14, 1960 lCC Figure 7 is a fragmentary horizontal sectional view, taken substantially along a plane as indicated by the line 7-7 of Figure 4;

Figure 8 is an enlarged fragmentary horizontal sectional view, taken substantially along a plane as indicated by the line 8 8 of Figure 2;

Figure 9 is a fragmentary plan view of a portion of a lead rule and showing broaches or notches cut therein, and

Figure l0 is an enlarged fragmentary vertical sectional view taken substantially along a plane as indicated by the line li-19 of Figure 2.

Referring more specifically to the drawings, the lead rule broaching machine in its entirety is designated generally 12 and includes an elongated frame 13, of substantially arch shaped cross section, as best seen in Figure 4. The frame v13 includes a substantially at top portion 14, a front wall 15 and a rear wall 16. The walls 15 and 16 extend downwardly from the top wall 14 and are disposed substantially parallel to one another and at right angles to the top wall 14. The walls 15 and 16 have outturned flanges 17 at their lower ends. The parts 14, 15, 16 and 17 each extends from end-to-end of the frame 13. Foot members 1S, preferaby formed of rubber, are secured in and depend from the flanges 17 for supporting the frame 13 in a slightly elevated position relative to a supporting surface, such as a table or bench top 19, as seen in Fig. 4. Braces 2i) extend between :the end portions of the walls 15 and 16 and are secured thereto by nut and bolt fastcnings 21 for maintaining said walls parallel to one another.

A carrier or carriage 23 is supported for sliding move ment on the frame 13 and includes an elongated top plate 24 which rests upon the top wall 14 and which has a depending ange 25 that extends downwardly from one side edge of the plate 24 and which is disposed against the outer side of the front wall 15 and terminates substantially above the bottom edge of said front wall. The carriage portions 24 and 25 each extends from end-to-end of the carriage 23 and said carriage is of a length greater than the length of the frame 13.

A carriage clamp and guide 26, of a length substantially equal to the length of the frame 13, has a bottom edge portion which is disposed against the lower portion of the outer side of the front wall 15 and which is secured thereto by the brace fastenings 21, which engage said front wall 15, and by additional fastenings 21, which engage the front wall 15 and said bottom portion of the clamp 26, substantially midway of the ends of the clamp, as seen in Figure 2. The clamp 26 includes an upper portion 28 which is outwardly offset relative to the lower portion 27 and which is spaced outwardly from the upper portion of the front wall 15. The portions 27 and 28 of the clamp 26 are joined by an intermediate portion 29 which extends downwardly and inwardly at an incline from the lower edge of the portion 28 to the upper edge of the portion 27. The clamp and guide 26 also includes a substantially lla-t top portion 3() forming an inturned extension of the upper edge of said upper portion 23 and which overlies a longitudinal portion of the carriage top wall 24, which is located adjacent the front of the frame 13. The depending flange 25 of the carriage 23 tits slidably between the upper portion of the front wall 15 and the upper clamp portion 28, so that the carriage 23 is slidably conned between portions of the top wall 14 and front wall 15 of the frame 13 and the portions 2.8 and 3i) of the guide and clamp 26.

An angular locking lever 31 has a restricted threaded stem 32 projecting from the distal end of the shorter leg 33 of said lever and loosely through aligned openings 34 of the clamp portion 29 and front wall 15, as seenV in FigureV 10. Anut 35 is secured immovably to the inner side of the front wall 15, around the opening 34 thereof. Y

The stem 32 extends inwardly through the openings 34 and threadedly through the nut 3'5. By turning the other handle end 36 of vthe lever 311 clockwise, as seen in Figure 2, the stem 32 is drawn inwardly through the nut 35 and the distal end of the lever portion 33 is drawn against the` outer side of the clamp portion 29, around the opening 34 thereof, so ythat theclamp portions 28 and 29 are forced toward the front wall 15 for clamping the carriage flange 25 between the portions l5 and Y Vfrom end-to-end thereof. The rule 37 is disposed between the top portion 36 of the clamp and the rear edge of the carriage top2-4 and has one longitudinal edge thereof bearing against the inner or rear edge of the clamp portion 39. The upper surface of the rule 37, along the edge thereof which engages the top portion 30, is suitably marked to form a scale 38 in inches, and the otherside edge portion of the toprsurface of the rule is marked to form pica scale 39. Screw fastenings 40 extend upwardly through the ends of therplate 2-4` and bar 37, beyond the ends of the scales 38 and 39 ,`andengage in the lower ends of upright handle members 41, for securing the bar or rule 37 immovably on the top plate 24 and for securing the handle members 41vin upright positions above the ends of the rule 37. One end of the bar 37 has Va lateral projection forming a transverse shoulder 42 which is disposed in alignment with the zero graduations of the scales 38 and 39 and which faces inwardly of the rule 37, as seen in Figure l.

A post 43 has an elongated transversely disposed crossbar or base 44 at the lower end thereof. The crossbar 44 is disposed against the intermediate portion of theA Vrear wall 16, midway of the ends of the frame 13, and

' 49 which project forwardly from the inner or front edge of the post 43. Said guide portions y49, as best seen in Figures 4V and 6, have lower ends terminating above and spaced from the top wall v14 and upper ends which termi- `nate substantially below the upper end of the post 43.

The guide portions 49 are each provided with a bore 50 of noncircular cross section extending from end-to-end therethrough, as seen in Figure 5. The bores 50 slidably and nonturnably receivershanks 51 of punches 52 for vertical sliding movement. The punch '52 is sup- Y portedk by the Vpunch guide 46 and the punch 53 is supported by the punch guide 47. Each of the punches has a head '5'4 at its upper end which is Vprovided with a rounded upper side.-. A compression spring 55 is carried Y by theY shank 51 of-each punch and is disposed under the single punch 52 and 4 rearwardly facing narrow side, as clearly illustrated in Figure 8.

Corresponding ends of two levers 58 and 59 are disposed against opposite sides'of the upper end of the post 43 and are swingably connected thereto by a nut and bolt fastening 6i) which extends through said post and loosely through said lever ends, for mounting the levers for vertical swinging movement -up and down above the frame 13.* The levers Vextend forwardly from the post 43 over the punches, and portions ofthe rounded heads 54 of said punches bear against portions of the bottom edges of the levers '58 and I59. A plate -61'is mounted on and detachably secured to the upper end of the post `43 by a screw fastening `62-and .has portions overlying parts of the upper edges of the levers '58 and '59, :above the punches v52 and l53, for limiting the extent that said levers can be swung upwardly by the pressure of the springs 55 and for thus limiting the extent that the punches can be moved upwardly to retracted positions by the springs 55. Thus, the springs y55 normally support the punches 52 and v53 .and their associated levers 58 and 59, respectively, in the positions `as illustrated in Figures 3, 4 and 6, inV which positions the punching bits '56 and 57 are disposed above the level of the rule 37.V Small plates 63 and 64 are secured to the upper edges of the forward ends of the levers '58 and 59, respectively, to form finger rests or keys. The key '63 has Vinscribed thereon the letter D, yas seen in Figure l, to designate Y the double punch V53, respectively. s

As seen in Figure 5 two tapered pointers -65 and 66 extend from a common base 67. The base 67 is secured to the upper side of the top portion 30 by screw fastenings 68 and the pointers '65 and 66 extend from the base 67 1 66 is disposedV in alignment withthe bit 57 of the punch '53.

In using the machine 12, a conventional strip of lead rule 69, of the type used in printing, is placed upon the top wall 24 of the carriage 23 with one longitudinal edge l and 53, which Vare supported thereby in upright positions compression between the punchhead 54 and the upper end ofthe guide portion '49 of said punch. Y The punches l52 and 53 have restricted lower ends, forming exten# sions of the lower ends of the Shanks 5.1 thereof and constituting Ythe cutting bits of said punches and which are designated 56 and 57, respectively. Said bits Y56 and 57 differ in size andV shape, as best seen in Figure 8. The bit i56 is substantially triangular in shape in cross section and has one side thereof disposed remote from and facing away from the front edge of the post 43 or in a for- Y of the lead rule 69 bearing against the rear edge of the rule 37 and with a portion of one end of the lead rule 69 abutting the shoulder 42, as seen in Figure l. With the lead rule 69 thus disposed, the other longitudinal edge 70 thereof willprotrude beyondrthe rear edge kof Ythe top wall 24, as seen in Figures 4 and 6, so that portions thereof will be disposed directly beneath the punch bits 56 and 57. With the clamping lever 31 loosened, as pre- Vviously described, the carriage 23 can be manually moved longitudinally of the frame 13 by the operator grasping one or both of the handles 41 to accurately set the lead rule 69, carried by said carriage, so that a desired portion of the edge 76 will be disposed directly beneath either the'punchbit 56 or 57. The setting of the carriage is accurately indicated visually by the positionof the pointers 65 and 66 relative to the pica scale 39, as seen in Figure 5, so thatthe distance between the right handend Vof the lead rule 69 and a portion thereof in which a Vnotch will be'cut -by either the punch bitV 56 or 57, can be .accurately determined. Whenrthe carriage has thus been properly set, the' lever 31 can be turned clockwise, as seenrin Figure 2, for clamping thercarriage 23 immovably to the fra-Ine l13as previously described, after which any number of Vlead'rules 69 can'bepunched'before'resetting the machine 12 and with the assurance that a notch as cut -by either the bit 56 or 57 willbe in exactly the same position in all of the lead rules.;V To executea cut with the punch bit 56, the finger button or key 63 is pressed downwardly to swingzthe lever 53 downwardly so that the punch 52 is forced downwardly a suiiicient distance so that the end of the bit 56will pass through the lead rule edge 70. A downward force` exerted on the other key 64 will cause the same operation to be accomplished by the bit 57 of the punch 53. As soon as pressure is released on either the button V63 or 64, the depressed punch will be displaced upwardly by the spring 55 to elevate the lever, associated therewith.

The bit S will cut a triangular notch 71, as Seen in Figure 9, in the lead rule edge 7 0 and the bit 57 will cut outwardly tapered notch 72 in the rule edge 70.

The notches 71, formed by the single punch bit 56, are adapted to receive single or light face breaching wire, not shown, and the larger notches 72, formed by the double punch bit 57, accommodate conventional double line or dark face breaching wire, not shown.

Various modifications and changes are contemplated and may be resorted to, without departing `from the function or scope or the invention as hereinafter dened by the appended claims.

We claim as our invention:

1. In a lead rule breaching machine, an elongated frame of substantially arch shaped cross section including a substantially dat top wall and front and rear Walls extending downwardly from and disposed at an angle to the top wall, a clamp connected to and extending upwardly from a lower portion of said front Wall and exending substantially from end-to-end of the iframe, said clamp being of angular cross section and having a clamp ing portion spaced outwardly from an upper portion of said front wall and a top portion overlying and spaced upwardly from a part of the top wall, disposed adjacent said front wall, an elongated carriage of angular cross section having a substantially at top portion resting on said top wall and including a part disposed between the top wall and said top portion of the clamp, said carriage having a depending `front portion disposed between said `front Wall and said clamping portion to retain the carriage against lateral movement relative to the frame, said carriage being supported by the lframe for reciprocating movement longitudinally of the frame and clamp,

positioning means xed to the upper side of the flat top portion of the carriage and adapted to locate a lead rule, supported by the carriage, in a predetermined position relative to the carriage, said positioning means including a portion extending longitudinally of the carriage against which a back edge or" the lead rule is adapted to bear and a laterally extending portion against which an end of the lead rule is adapted to abut, said rst mentioned portion of the positioning means being disposed between the lead rule and an inner rear edge of said top portion of the clamp, and manually actuated clamping means connected to said front wall of the frame and to the clamp, below said clamping portion, for displacing the clamping portion toward said iront wall for releasably clamping the carriage to the frame in a plurality of selected adjusted positions of the carriage longitudinally of the frame to accurately position selected portions of the lead rule beneath a broaching punch supported by the frame.

2. A lead rule -broaching machine as in claim 1, and braces extending between and secured to said front and rear walls for maintaining said walls substantially parallel to one another and at right angles to said top wall.

3. A lead rule broaching machine as in claim 2, said front Vand rear walls having outturned bottom flanges, and foot members secured to and depending from said anges.

References Cited in the file of this patent UNITED STATES PATENTS 856,403 Hubbard June 11, 1907 860,739 Durell July 23, 1907 1,163,600 Canfield Jan. 18, 19'16 1,968,322 Snyder July 31, 1934 2,058,719 Pigrnan Oct. 27, 1936 2,338,940 Honig Jan. 11, 1944 2,368,790 Unger Feb. 6, 1945

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