US838675A - Metal-cutting machine. - Google Patents

Description

PATENTED DEC. 18, 1906. G. H. WHITE.

METAL CUTTING MACHINE.

APPLICATION FILED JAN. 30, 19064 6 SHEETS-SHEET 1.

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PATBNTED DEC. 18, 1906. G. H. WHITE. Y

METAL CUTTING MACHINE.

APPLIUATION FILED JAN. 30, 1906.

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No. 838,675. PATENTED DEC. 18, 1906.

I G. H. WHITE. METAL CUTTING MACHINE.

APPLICATION FILED JAN. 30, 1906.

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G. H. WHITE. METAL CUTTING MACHINE.

APPLICATION FILED JAN- 80, 1906.

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PATENTED DEC. 18, 1906.

APPLICATION FILED JAN. 30, 1906.

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QFFWEQ GEORGE nitmirfiw nfiia)onlonicirrjigri ivnsrLvAmA. ASSIGNOR TO s. R. DREssERMAnuFacT-Uitme 'GOMPANY, or BRADFORD, PENN- sYLVANIA lfl r-a J" ffMETAt- CUTTlNG MA HINE.

I 1 Specification p'f'Letters Patent.

Patented Dec. 18, 1906.

i I Application ile f Ja niary 30.1906. sitar No. 298.728.

xijii'z To all whom, it may concern;

Be it known that 1, GEORGE; HnnRY were;

a citizen of the Unitedstat esflesidingiat City, in the county of.Yenango'and State of,

Pennsylvania, have invented certain new and useful Improvements in Metal-Cutting Machines; and I do hereby declare'the follow-j: ing to be a full, clear,,and exact description; of the invention, sufchaewill enableothers skilled in the art to to make and use the same. f

My invention consists the novel/features" hereinafter descr bed, reference be ng had to u the accompanymg drawlngs, which llustrate one form in which I have contemplated em bodying the said inventiomand the invention is fully disclosed in theffollowing scription and claims.

Referring to thedrawings,Figured i t e-ij sents a s1de elevation ofa metal-cutting ma chine embodyingmyinvention, Fig. Zis a top plan view of the same, Fig., 3,is afront elevation of the machine, Fig. ,4 isjarear elevation of the machine, Fig.5 is adetailr. sectional view of portion of the inachine,

showing the stationary andl movable j aws and the adjustable, guide ,f or the stock, apiece of skelp being shown in position to becut OH and a portion thereof being broken ,away to show the guiding-groove in the platen. Fig.

6 is a top plan view of ,the, guide' detached,"

showing the end of aisteel s kelpito cut-in engagement therewith. 7 is a perspective view of the same. I

The cut 'ng apparatus hereinshownjandf described is designedlforcutting.off flat bars of iron or steel, andjespec ially skelp, such. as

is used in the manufacture-of metal rings,

the skelp herein shownzbeing providedon one face w1th a long1tudmalbead, as shown 1n Figs. 6 and 7, in whiclrS represents asection of the skelp, and s the longitudinaljbead re ferred to. In the. manufacture of metal rings it is desirable to cut the skelp so thatthe end portions of the severed blank will be parallel and inclined to the faces thereof, and this ap-' paratus is therefore constructed toicut the.

skelp in a plane at. an angleto thetop and bottom of the latter. I i

In the drawings, A .A represent the, inain frame of the mach ne, thesaid parts bemg 1n this instance detached and separately mountmaterial. (Not shown.) The main section A of the frame is provided at its front end witha laterally-oifset portion A and which form's'the rigid jaw of the apparatus and is provided with the stationary knife or cutter C,- secured in an inclined position by means of. suitable bolts 0 in a recess in the rigid jaw. Forward of the cutter C the said jaw is providechwith a guiding surface or platen a, is provided with a longitudinal groove a of substantially the same width and depth as -'the bead s, heretofore referredto, and adapted to receive said bead and guide the skelp as it is pushed into the cutter. The front end of the frame portion A is also provided with perforated lugs a (1 which receive the heavy pivot-pin Z), upon which the cutting-lever B is mounted, as shown. The forward end of the cutting-lever B forms the moyable jaw and is provided with the inclined cutter C or blade secured in a recess in the jaw by bolts 0, and said movable aw lies between the lugs 0, a of the offset portion of the frame A. The portion of the lever B in rear of the point of pivoting (indicated at B extends rearwardly in line with one side of the movable jaw and out of line with the cutters or knives C C, (see Fig. 2,) so that any desired length of skelp can be pushed through the jaws of the machine before cutting off without interfering with the cuttingjaws or any of the mechanism for operating the movable jaw.

The rear end of the lever B of the movable jaw is provided on its under face with a removable wearing-plate b, of hardened steel, having its end portions beveled to engage a dovetailed recess in the lever and further secured in position by screws, as shown. This wearing-plate engages a cam D, rigidly secured to a cam-shaft I), mounted in bearings in the frame members A and A of the ma chine. The shaft D is provided with a gearwheel E, loosely mounted thereon and provided with a clutch member F, and said shaft is also provided with a movable clutch member F, secured to the shaft by means of a key or feather, so as to be capable of longitudinal movement thereon while rotating therewith.

G represents the driving-shaft of the machine, mounted in bearings in the frame ed upon a suitablejbase.ofconcreteor other members A and A and provided with a heavy balance-wheel H, fast and loose pulleys H and H and pinion H, meshing with the gear E. The clutch member F is operated by a yoke l, pivotally secured to the frame member A and connected by a link I (see Fig. 4) to an arm Z at the rear end of a horizontal shaft L, which is supported in bearings secured to the frame member A and extends to the front end of the machine, where it is provided with a hand operatinglever Z, by which the clutch may be thrown in or out. The hand-lever Z (see Fig. 3) extends through a horizontal guide P, which is perforated to receive stop-pins Z" for holding the lever Z in operative or inoperative position when desired.

The lever B is also provided with a camengaging strap 1) to insure the downward return movement of the lever after a out has been made.

M represents a horizontally-disposed guidesupporting bar extending from the offset portion A of the frame member A rearward to the end of the machine, where it extends downward, as at m, and is secured at its lower end to the base of the frame member A. On this bar M is supported the adjustable trip-guide. This guide comprises sliding block N, adapted to slide on the bar M and provided with perforated ears n, in which is pivoted a lever N, having its forward end bent downwardly and forming the guide proper, n. The rear end of the lever N is provided with a counterbalance-weight 71 (or spring) which holds the lever nor mally in contact with a stop or support nf on the block N. One edge of the guide proper, a, is exactly in line with one edge of the recess a in the platen, and this guide n performs the double function of determining the length of the skelp which is cut off and also alining the skelp, so that the cut is made perpendicularly to the lateral edges of the skelp.

It will be seen that the skelp is cut angularly, and as the bead s is on the lower side a small portion of the bead will project beyond the end of the plane portions of the skelp, as clearly shown in Fig. 6. In feeding the skelp forward over the platen a into the machine it is pushed in until the end engages the guide it (which has been previously set at the desired point) by means of setscrews a a, and the projecting portion of the bead s is placed against that edge of the guide n which is in line with an edge of the groove a. The skelp is thus held by said guide a and by the groove (1/ in a position to be cut straight across perpendicularly to its lateral edges.

To produce a cut, the operator throws the lever Z to the left, (viewed from the front of the machine, see Fig. 3,) ius moving the clutch member F into engagement with. the

clutch member F and causingthe cam-shaft D and cam D to rotate, elevating the lever B and lowering the movable jaw B and cutter C. As the skelp is cut diagonally or in a downwardly and rearwardly inclined direction, the effect of the cut is to push the severed piece of the skelp rearwardly. The rear end of the severed portion is in engage ment with the guide proper, n, and as the severed piece is pushed rearwardly the lever N rocked on its pivot, the guide n moving rearwardly and the weight n being elevated, thus' allowing the severed piece to clear the guide and drop. As it falls its front or forward end strikes an inclined portion A", (see Fig. 5,) forming the rear face of the laterally-offset portion of the frame portion A, and thus the severed portion will be pushed to the rear and will fall upon the bottom plate or flange of the frame portion A out of the way and may be removed from the machine. As soon as the cut has been made and the cam has lowered the lever B and raised the movable jaw into open position the operator will move the clutch-lever Z to the right, Fig. 3, thus throwing the clutch member F out of engagement with the member F and stopping the cutting apparatus, although the driving-shaft may be permitted to run continuously when the machine is in use. The skelp is then pushed in until it engages the guide a, (which is restored to normal position by the weight a as soon as a severed piece is discharged,) and the operation is repeated.

The heavy balance-wheel on the drivingshaft, which is driven at considerable speed, acquires a considerable momentum, which assists in effecting the cut when the clutch is thrown in without perceptibly slowing down the machine.

What I claim, and desire to secure by Letters Patent, is-- 1. In a metal-cutting machine, the combination with the main frame, of a movable jaw pivotally mounted therein, and provided with a cutting-blade arranged in a plane parallel with the pivotal axis of the jaw, said machine providing a straight unobstructed path therethrough for the material, perpendicular to the said blade and in a horizontal plane passing between the cuttingblades, and operating mechanism for said movable jaw, located laterally of said path, substantially as described.

2. In a metal-cutting machine, the combi nation with the main frame provided with fixed aw carrying a cutting-blade of a movable jaw, pivotally mounted in said frame and provided with a cutting-blade, said blades being disposed in a plane parallel to the pivotal axis of said movable jaw, said machine having a straight unobstructed path. therethrough for the material, perpendicular to said blades and in a horizontal plane passing between the cutting-blades, an operating- IIO izo

lever for the movable jaw located at one side of said path, and operating mechanism for said lever, located on the same side of said path, whereby any desired length of material can be fed between said blades, before cut ting off, substantially as described.

3. In a metal-cutting machine, the combination with the main frame provided with a lateral offset portion, forming the fixed jaw, and provided with a cutting-blade, a movable jaw above said offset portion of the frame pivotally mounted therein and provided with a cutting-blade, said blades being arranged parallel with the pivotal axis of the movable aw, said machine providing a straight unobstructed passage for the mate rial in rear of said offset portion of the frame, and perpendicular to the blades and in a horizontal plane passing between the cuttingblades, an operating-lever for said movable jaw extending rearwardly therefrom at one side of said path, and operating mechanism for said lever, mounted in the main frame at one side of said path, substantially as described.

a. In a metal-cutting machine, the combination with the main frame, of a movable jaw pivotally mounted therein, and provided. with a cutting-blade arranged in a plane parallel with the pivoted axis of the jaw, said machine providing a straight unobstructed path therethrough for the material, perpendicular to the said blade, and operating mechanism for said movable jaw, located laterally of said path, a support for an adjustable stop located at one side of the path of the material through the machine, and an adjustable stop mounted on said support, and having a part extending into the path of the material in line with the cutting-blades, substantially as described.

5. In a metal-cutting machine, the combination with the main frame, of amovable jaw pivotally mounted therein, and provided with a cutting-blade arranged in a plane parallel with the pivotal axis of the jaw, said machine providing an unobstructed path therethrough for the material, perpendicular to the said blade, and operating mechanism for said movable jaw, located laterally of said path, a support for an adjustalile stop located at one side of the path of the material through the machine, and an adjustable stop mounted on said support and having a yielding part in the path of the material, substantially as described.

6. In a metal-cutting machine, the combination with. a stock-engaging platen or support, provided with a narrow longitudinallydisposed guiding-groove in its upper face, located between the lateral edges of said platen, and a pair of cutting-blades arranged adjacent to said platen, and disposed transversely with respect to said guiding-groove, substantially as described.

7. In a metal-cutting machine, the combination with a stock-engaging platen or support provided with anarrow, longitudinal, web-engaging, guiding-groove in its face between its lateral edges, a pair of cuttingblades of substantially the width of the platen arranged adjacent to said platen and disposed transversely with respect to said groove, and a guide for the end of the stock located on the side of said blades opposite to the platen, and having a web-engaging edge in line longitudinally with one edge of said guiding-groove, substantially as described.

8. In a metal-cutting machine, the combination with the main frame having a laterally-offset portion provided with a horizontal platen having a longitudinally-disposed guiding-groove thereon, and a fixed cutting blade located in rear of the said platen and disposed transversely thereto and obliquely to the face of said. platen, a movable jaw mounted in said offset portion of the frame and provided with a cutting-blade disposed transversely of and obliquely to said platen, said movable jaw having an operating-lever located at one side of said cutting-blades, and operating mechanism for said lever having all its parts out of the path of the stock as it is fed over said platen into the machine, substantially as described.

9. In a metal-cutting machine, the combination with the main frame having a laterally-offset portion provided with a horizontal platen having a longitudinally-disposed guiding-groove therein, and a fixed cuttingblade located in rear of the said platen and disposed transversely thereto and obliquely to the face of said platen, a movable jaw mounted in said offset portion of the frame and provided with a cutting-blade disposed transversely of and obliquely to said platen, said movable jaw having an operating-lever located at one side of said cutting-blades, operating mechanism for said lever having all its parts located out of the path of the stock as it is fed over said platen, a longitudinally-disposed guide-bar, a block adjustably mounted thereon, a lever pivoted to said block and provided at one end with a guide depending therefrom into the horizontal plane of the platen and having one edge in line with one edge of the guiding-groove therein, and its other end provided with a counterbalance, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

I GEOR GE HENRY WHITE.

W'itnesses ELIZABET MULLIGAN, J os. W. BARR.

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