US334455A - Half to meewin mckaig - Google Patents

Description

(N0 Mode-1,) 3 Sheets-Sheet l.

W. J. MUNOASTER.

METAL BENDING AND STRAIGHTENING MAGHINE. No. 334,455. P ed Jan. 19,1886.

Fig.1.

Witnesses.-

N PETERS. Phnw-Lilhqgnphcr. Washington. D. c.

(No Model.) 3 Sheets-Sheet 2.

'W. J. MUNOASTER. METAL BENDIN'G AND STRA'IGHTENING MACHINE. No. 334,455.

Patented Jan. 19, 1886.

N. PETERS. Phalo Lllhugmplmr. Wnshingm. n, c.

(No Model,)

W. J. MUNOASTER.

3 Sheets-Sheet 3.

METAL BENDING AND STRAIGH TEN ING MACHINE.

Patented Jan. 19, 1886.

.mlll W UNITED STATES PATENT OFFICE.

\VALTER J. MUNOASTER, OF CUMBERLAND, MARYLAND, ASSIGNOR OF ONE- HALF TO MERVVIN MOKAIG, OF SAME PLACE.

METAL BENDING AND STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent No. 334,455, dated January 19, 1886.

Application filed November 25, 1885. Serial No. 183,951.

To all whom it may concern.-

Beit known that I, WALTER J. ll lUNOASlER, ofOumberland, in the county of Alleghany and State of Maryland,have invented certain new and useful Improvements in Metal Bending and Straightening Machines, of which the following is a specification.

My invention relates to machines for straightening and bending metal bars and shafting, and is designed as an improvement upon the machine for which Letters Patent were granted to me bearing date the 9th day of June, 1885, and numbered 319,603.

In the drawings,Figure 1 is a front elevation of my improved machine; Figs. 2 and 3, views illustrating the means for raising and lowering the rollers which support and turn the shaft; Fig. 4, a top planviewof the roller-frames and rollers; Fig. 5,a section on theline m0 of Fig.4; Fig. 6, an end View ofthe maehine,part1y broken away to show the reversing-gear; Fig. 7, a

vertical transverse section through the press;-

Fig. 8, a view of the gearing for giving motion to the rope.

the operator or attendant to more quickly and easily manipulate and control the machine, to render the same simpler and more compact, and generally to cheapeu andimp'rove its construction.

In its general construction the machine is similar to that covered by my former patent, above referred tothat is to say, it embraces a bed or frame provided with rollers upon and by which the shaft may be supported and rotated, a traveling press movable from eud'to end of said frame, adapted to support the shalt and to press or act upon the same between the points of support, suitable belting and gear- 0 ing for imparting motion to and devices for controlling the motions of the various parts.

In the drawings, A indicates the main frame or bed of the machine,supported,as before,upon feet or base-blocks B, and formed with suit- 5 able guides or ways, a, to support and guide the wheels b of the traveling press 0.

D indicates a stationary frame, and E a sliding frame, each resting upon the bed or frame A, the former fixed thereon at or near one end,

0 and the latter being movable in the direction The objects of my invention are to enable (No model.)

of the length of the frame. Each of the frames D E is formed with upwardly-extending arms a, between which is pivoted a second frame or metal beam, F, in which are journaled two rollers, G, which serve to support and rotate 5 5 the shaft under operation, as in the previous machine. 7 Each roller G or'its shaft is formed or provided with a Worm-wheel, b, and a shaft, H, also journaled in the secondary frame F, carries two worms or screws, I I, which mesh 6 with and rotate the worms b b of rollers G in one and the same direction. The rear or outer end of the shaft H of each frame F projects outward beyond said frame, and is provided with a slot or groove, 0, to receive the'spliu'e 6 or feather d of a pulley, J, about which the driving-belt is passed which rotates said pulley and its shaft H. Each pulley J is formed with a circumferentially-grooved hub, and yokeK is seated within the groove ofsaid hub, and has projecting arms or pins 6, which extend into slots f of a forked arm, L, projecting outward one from each of the frames D and E. The slotted arms and the pins permit the yoke to rise and fall with the pulley, but 7 5 prevent any appreciable end-play of the pulley,such as might interfere with the free travel and proper action of its driving-belt, while the shaft H is permitted to move through the pulley as required by the rise and fall of the So beam or frame.

Pivotally attached to the free or moving forward end of each secondary frame F is a toothed rack or bar, M, the back of which bears against a rod or shaft, N and the teeth of which are 8 5 thus maintained in engagement with a pinion, O, of which there are two, mounted upon a shaft, P,extending length wise of frame A along its front. The shaft 1 is provided with aslot or groove, f, and the pinion O of the sliding 0 frame E F is provided with a feather or spline, g, which enters said groove, and thus causes the pinion to turn with the shaft, though leaving it free to slide thereon as said frame is moved along the bed of the machine. lVhen- 5 ever it is desired to lift and turn the shaft or bar undergoing the operation of the press 0, it is only necessary to turn shaft P in the proper direction to raise the rack-bars M, thus raising frames or beams F and their rollers G until the shaft is raised clear of the press or supports. The beams or frames F are held at any desired elevation by means of a pawl, h, carried by the shaft or rod N, which pawl engages with a ratchet-wheel, Q, secured upon the shaft I.

For the purpose of supporting the shaft 1, the bed of press 0 is formed with an arm, i, through which said shaft passes, and for the purpose of enabling the attendant to remain always at the press and to control shaft Pfrom that point I place within said arm a tubular sleeve, j, which encircles the shaft 1, is free to turn within said arm, is furnished with a spline or feather, 7;, to enter the groove f of the shaft, and is furnished with a handlevcr, Z, by which the sleeve, and consequently the shaft P and pinions 0, may be turned. In like manner the rod N is grooved and furnished with a feathered or spliued sleeve, 121, having a handlever, a, and free to slide along the rod, and thus enabling the attendant to keep the pawl h under his control without moving away from the press.

It will be seen that the construction thus described permits the ready raising and lowering of the shaft undergoing the action ofthe machine, saves time, and simplifies the construction.

In my former machine the screw-stem of the ram or bunter of the press passed through a nut having a concave upper face bearing against a convex face or seat in the reciprocating beam of the press. I now substitute for said former arrangement a heavy nut, R, of cylindrical formthat is to say, a hole is bored through a substantial cylindrical piece of metal at right angles to the axis thereof, and said hole is then threaded to receive the screw-stem of the hunter S. The nut is placed with its axis in a horizontal planeat rightangles to the length of the reciprocating beam T of the press, and its ends form journals. upon which the nut rocks in adjustingand adapting itself to the varying inclination of the screwstem. This construction I find much more satisfactory, and at thesame time cheaper than that formerly adopted.

The driving-gear constitutes the next feature of my invention, and the improvements are designed to bring the belts down closer to the floor and to leave them less in the way. \Vith this object in view I construct the press as before, so far as the driving mechanism is concerned, and in all respects except where differences are specifically mentioned; or, in other words, I provide the press with a shaft, U, carrying an eccentric, V, which gives motion to the reciprocating beam T, and carry a ing also a gear-wheel, \V, firmly secured upon the shaft, and an idler-pulley, X, loose upon said shaft. I further provide a shaft, Y, carrying a rigidlyattached pinion, 0, and a bandpulley, Z.

At one end of frame A, supported in a box or bearing, 1), thereon, and in an additional box, 1), carried by a standard, A, apart from frame A, is a main driving-shaft, B, from which motion is given to the various parts of the machine.

0 indicates a band-pulley mounted upon said shaft, and D a belt or band passing about said pulley G; thence parallel with frame A beneath and upward about pulley Z; thence beneath and upward about loose pulley X; thence over a pulley, E, carried by a stand ard, F, at the end of frame A farthest removed from the driving-shaft B; thence down to and beneath a pulley, G, and back to pulley C of the driving-shaft. The shaft B also carries a grooved band-pulley, II, from which a band or belt, 1, passes over and around pulley J of shaft H of traveling-frame E F; thence back over and around an idlenpulley, J, car-' ried by the frame E; thence to and beneath a pulley, K, carried by the fixed frame D, upward over the pulley J of said frame, downward beneath a pulley, L, and back to pulley H of the driving-shaft. This arrangement permits the same travel of carriage or frame E as in my former machine, but is simpler and more compact.

M indicates a grooved drum, firmly secured upon shaft or axle N. journaled in the frame A near the end at which driving-shaft B is placed. From this drum a wire rope or cal -le, 0, passes to and about a sheave or pulley,P', carried by a swiveled and perfectly-adjustable yoke, Q, at the opposite end of frame A; thence back to drum M, upon which is wound a sufficient length of the rope or cableto effect a movement of the press 0 (which is clamped to said rope) from one end of the frame to the other, the two ends of the rope being made fast to the drum.

To give motion to the drum and permit the reversal of that motion at will, I provide the gearing illustrated in dotted lines in Fig. 1 and in full lines in Fig. 8.

R indicates a pinion fixed securely upon driving shaft B and meshing constantly with a pinion, S, turning loosely upon a stud or axle carried by an arm, q, projecting radially from a hub or boss, T, secured upon a rockshaft, U, one end of which is reduced in diameter, and has a bearing in a socket made in the end of shaft B, while the other end is carried by a box, 1', on frame A.

To the outer end of rock shaft U is secured a lever, W, the free end of which is connected by a link, 8, to a second lever, \V, pivoted at or near the floor, and in turn connected by link t with a rod, it, carried in guides or hangers from end to end of the frame.

The shaft N of the drum carries a gearwheel, X, with which the pinion t" meshes when the rock-shaft U is rocked or turned to throw the pinion toward said gear-wheel, or to the position indicated in dotted lines in Fig. 1.

Y indicates a pinion meshing constantly with gear-wheel X, and in such position that when rock-shaft U is turned to carry the pinion S away from and out of engagement with ICO gear-wheel X said pinion S will gointo mesh with the pinion Y, and as the motion of shaft B will then be transmitted to gear-wheel X from pinion B through two intermediate pinions, instead of one, it follows that the direction of its rotation and that of the drum will be reversed.

The special arrangement of the reversinglever and its connections is designed to give adequate power to effect the change easily and with certainty while bringing the sliding rod Having thus described my invention, what' I claim is 1. In a machine for straightening or bending shafting, &c., the combination, with a supporting bed or frame and with a travel ing press, of transverse frames, as D E, each provided with a beam or secondary frame, F, bearing rollers G, and adapted to be raised and lowered, substantially as and for the purpose set forth.

2. In combination with a bed orsupporting frame, a press movable on said frame, transverse frames resting upon said bed, beams pivoted in said transverse frames'and provided with rollers to sustain a shaft, rack-bars attached to the beams, and ashaft extending lengthwise of the main frame and provided with pinions to mesh with the rack-bars, as and for the purpose set forth.

3. The combination of a bed or frame, A, a press, 0, movable thereon, transverse frames D E, mounted upon frame A, beams F, pivoted in frames D E, provided with rollers G and rack-bars M, shaft P, provided with pinions 0 and ratchet-Wheel Q, rod or shaft N, provided with pawl h, and a sleeve, m, movable lengthwise of said shaft, and provided with handle a.

at. In combination with frame A, crossframe D or E, and beam F, pivoted in said cross-frame, rollers G, carried by said beam, at grooved driving-shaft for said rollers also carried thereby, a pulley mounted upon said shaft and provided with a feather to enter the groove, and a guide or holder for said pulley adapted to permit the rise and fall thereof with the shaft,but to prevent its movement in the direction of the axis.

5. In combination with frame A, press 0, and transverse frame D or E, beam F, pivoted in said transverse frame, rollers G, carried by said beam and provided with worm-wheels b, shaft H, provided with worms or screws I and groove a, pulley J, having a circumferentially-grooved hub, and a feather to enter the groove 0, a yoke seated in the circumferential groove of the hub, and a support adapted to hold the yoke against movement lengthwise of shaft H, but permitting it to rise and fall with said shaft.

6. In combination with main frame A,travcling press 0, and sliding cross-frame E, beam F, hinged to frame E, and bearing rollers G, rack M, attached to the free end of the beam F, shaft P, provided with sliding pinion O, and splined sleevej, swiveled in an arm ofthe press-frame, encircling shaft P, and provided with lever or handle Z.

7. In combination with frame A, crossframes D E, hinged beams F, provided with rack bars M, and shaft I, carrying pinions for raising and lowering said beams, a ratchetwheel secured upon said shaft, 2. second shaft, N, provided with pawl h for locking said ratchet and shaft, and a hand-lever mounted and free to slide upon shaft N, but locked thereto by a spline or feather, whereby the operator is enabled to slide the lever to and to control the pawl from any desired point.

8. In a machine for straightening and bending shaftiug, &c., the combination, with a supporting-bed, of a press, 0, having a vertically-reciprocating beam, T, provided with a horizontal circular opening,a cylindrical block or nut, R, seated and free to turn in said opening, provided with a transverse threaded hole, and a screw-stem, S, passing through said hole and adapted to act upon the shaft or bar below.

9. In combination with frame A, having pulleys C, E, and G, and with press 0, having pulleys X and Z, belt D, passing about said pulleys, in the manner described and shown.

10. In combination with frame A, crossframes D E, and rollers G, driving-shafts H for said rollers, pulleys J- on said shafts, driving-pulley H, guide-pulleys J K L, and driving belt I, passing about said pulleys, as shown and described.

11. In combination with frame A, traveling press 0, drum M, cable 0, and gear-wheel X, driving-shaft B, pinion R, carried by said shaft, pinion Y, meshing constantly with pinion X, rock-shaft U, having arm q, and pinion S, carried by said arm and adapted to be brought into mesh with gear X or pinion Y at will.

12. In combination with frame A, press 0, cable 0, drum 1/ and gear-wheel X, pinions R and Y, rock-shaft U, provided with arm q, carrying loose pinion S, lever V, secured to the rock-shaft U, lever W, connected with lever V by a link, 8, and sliding rod a, connected with lever W, substantially as shown and described.

WALTER J. MUNOASTER.

Witnesses:

F. M. OFFUTT, 0. SMITH, Jr.

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