US1063779A

US1063779A - Horseshoe-forming machine.

Info

Publication number: US1063779A
Application number: US61228211A
Authority: US
Inventors: Stanley Martin Crone
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-03-04
Filing date: 1911-03-04
Publication date: 1913-06-03
Anticipated expiration: 1930-06-03

Description

S. M. CRONE.

HORSESHOE FORMING MACHINE.

APPLICATION FILED MARA. 1911.

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HORSESHOE FORMING MACHINE.

APPLICATION FILED MAR.4, 1911.

S. M. ORONE.

HORSESHOE FORMING MACHINE.

APPLICATION FILED MAR.4, 1911.

Patented June 3, 1913.

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S. M. CRONE.

HORSBSHOE FORMING MACHINE.

APPLICATION FILED HARM 1911. 1,063,779.

UNITED STATES PATENT OFFICE.

STANLEY MARTIN CRONE, OF FULLERTON, PENNSYLVANIA.

HORSESHOE-FORMING MACHINE.

To all whom it may concern:

Be it known that I, STANLEY M. CRoNE, a citizen of the United States, residing at Fullerton, in the county of Lehigh and State of Pennsylvania, have invented new and useful Improvements in Horseshoe-Forming Machines, of which the following is a Specification.

The invention is primarily designed to rovide a machine for forming horseshoes from blanks or billets cut from a bar of metal, said billets or blanks being acted upon by successive steps in a single organized machine to form a complete horseshoe, the latter having its heel portions reduced in width and gradually thickened in depth and having the usual nail grooves, or creases, and nail openings.

It is to be understood that the invention may be adapted to metal working machines designed for bending and pressing Work to obtain a given lesult, the present invention contemplating a machine embodying bending devices and pressing mechanism so that the blank may be given the required shape at one heating and the cost incident to handling and reheating overcome, since the machine embodies means for automatically transferring the work from the bending mechanism to the pressing mechanism, and means for automatically removing the completed article from the pressing mechanism, the several steps being performed in succession without requiring any intermediate handling or reheating.

The invention consists of the novel features, details of construction and combination of parts, which hereinafter will be more particularly set forth, illustrated in the accompanying drawings, and pointed out in the appended claims.

Referring to the drawings, forminga part of the application, Figure 1 is a Side view of a metal working machine embodying the invention. Fig. 2 is a top plan view thereof. Fig. 3 is a transverse section on the line 00-0a of Fig. 1, looking in the direction of the arrows. Fig. 4 is a transverse section on the line y 1 of Fig. 1, looking to the left, as indicated by the arrows. Fig. 5 is a central longitudinal section on the line z z of Fig. 2.

Corresponding and like parts are referred to in the following description, and indi- Specification of Letters Patent.

Application filed March 4, 1911.

Patented June 3,1913.

Serial No. 612,282.

cated in all the views of the drawings, by the same reference characters.

The frame work comprises a bed piece A, a supporting structure 0 and uprights B at one end of the bed piece A. A shaft D is located near one end of the frame and is mounted in suitable bearings and is adapted to be driven from a suitable source of power. Pinions D are secured to opposite end portions of the shaft D and mesh with gear wheels E secured to end portions of a shaft E mounted upon the framework and arranged parallel with the shaft D. A bevel pinion D is likewise secured to the shaft D and meshes with a bevel pinion J secured to the lower end of a shaft J, which is located at one side of the framework and inclines upwardly and rearwardly and has a bevel pinion J at its upper end meshing with a bevel gear L secured at one end to a transverse shaft L mounted in bearing at the upper ends of the uprights B. A shaft F, mounted upon the framework parallel with the shafts D and E, has a gear wheel F eccentrically mounted thereon and in mesh with an eccentric gear wheel E secured to the shaft E. The eccentric gears F and E are disposed so as to produce a varying degree of force or power during the bending operation. Crank wheels F are secured to opposite ends of the shaft F and pitmen F connect the same to opposite ends of a bar G which is bolted or otherwise secured to a cross head G arranged to slide in guides A provided upon the bed A. A former G is connected to the cross head G by means of a bar G A double cam G is adjustably connected to the cross head G to move therewith and is adapted to be pressed between the forward ends of a pair of shap ing levers H pivoted at H to the bed A. A spring H of the helical type normally eX erts a pressure to draw the forward ends of the levers H inward. The shaping levers H extend longitudinally of the machine and their forward ends are made thicker than the rear ends, both ends of the levers being provided with rollers so as to reduce the frictional resistance to the smallest amount possible. Fixed dies I are located upon opposite sides of the former G and aline transversely. Movable dies E are arranged to cooperate with the fixed dies 1, the movable dies consisting of levers arranged vertically and mounted upon a transverse shaft E. Pendent levers E are located at the front end of the machine and are pivotally supported at E and are connected by means of rods or bars E to the lower ends of the pivoted levers E the upper ends of which constitute the movable dies adapted to cooperate with the fixed dies I. In the operation of the machine the lower ends of the pendent levers E are pressed forward by means of cams E secured to the shaft E, said cams having rollers at their outer ends to reduce the friction and wear to the smallest amount possible. Centering devices l\ are located at opposite sides of the machine with their upper ends opposite the spaces formed between the fixed and the movable dies I and E said centering devices serving to properly position the billets or blanks when placing the same in position.

The press mechanism is located at the rear end of the machine and comprises a fixed die P held in place by means of a set screw P The movable die L is directed in its vertical movements by suitable guides and is connected with the shaft L to be operated thereby. The upper surface of the die P is preferably plain, whereas the lower side of the die L is shaped to provide the horse shoe with the nail grooves or creases and the nail openings. The blank or billet after being bent into the shape of a horseshoe is moved to a position upon the die P by means of the former G, the partly formed horseshoe being supported by means of a bar or rib P located centrally above the die P. The shaft L is provided with two cam projections O and O, which are adapted to engage the upper ends of the levers M and K. A push bar K mounted in suitable guides is adapted to be engaged by the lower end of the lever K so as to properly position the partly completed horseshoe upon the die P. A spring mounted upon the push bar K transfers movement from the lever K to said push bar, thereby preventing sudden movement of the push bar which would tend to move the horseshoe too far forward upon the die P. After the horseshoe has been delivered upon the die P by means of the former G the cam O engages with the upper end of the lever K and moves the latter, thereby pressing the push bar K forward so as to move the horseshoe upon the die to a position to be engaged by the movable die L The second lever M has a latch h pivoted to its lower end, said latch being adapted to ride over the closed end of the horseshoe upon the forward movement of the lower end of the lever M and after the latch clears the horseshoe it drops so as to engage the same, whereby upon rearward movement of the lower end of the lever M the completed horseshoe is removed from the machine. The lever M is adapted to be operated by the cam O. The lever K is drawn rearward by means of a spring K and the lower end of the lever M is moved rearward by means of a coil spring M In the operation of the machine power is applied to the shaft D and is transmitted therefrom to the several parts by the means herein set forth. The billet-s or blanks Q, are cut from a bar of iron or steel into the required length. One of the billets is placed in position between the dies I and E and is positioned by means of the centering devices M The cams E coming in contact with the lower ends of the levers E press the same forward and operate the movable dies, thereby compressing end portions of the blank Q so as to diminish the width thereof and increase the thickness such as is required for the heel portions of a horseshoe. After the end portions of the blank have been reduced in width and increased in thickness the cross head G is moved rearward, thereby bringing the former G in contact with the blank Q and forcing said blank between the fixed dies 1, thereby bending the blank. After the former has moved a given distance the cam G moves between the forward ends of the levers H and spreads such ends, thereby causing the rear ends of the levers to move inward and to press the folded ends of the blank close against the sides of the former, the cam portions of the part G being of such form as to insurethe rear ends of the levers H pressing the folded ends of the blank close against the sides of the former G The movement of the former Gr is such as to carry the partly formed horseshoe over the die P and to depositthe same thereon. When the horseshoe clears the raised portion P it drops from the former Gr and is received upon the die P. The former Gr now returns and at the same time the push bar K is advanced to properly position the horseshoe upon the die P and an instant thereafter the movable die L descends and gives the final shape to the horseshoe and as the die L ascends the lower end of the lever M moves forward so as to carry the latch M over the closed end of the horseshoe, after which the upper end of the lever M is released from the cam O and the spring M coming into play draws the lower end of the lever M rearward and removes the completed shoe from the machine.

As indicated most clearly in Figs. 4 and 5 the die L has adjust-able connection with a crank portion of the shaft L to admit of its relative vertical adjustment to properly position the working parts for forming the nail openings and nail creases in the work. The connection embodies a bearing 2, a block 3 and a right and a left hand threaded screw 4. A pin 5 connects the block 3 with the side members of the die L The block 3 has a socket connection with the die L to admit of a slight movement, thereby preventing binding or undue strain upon the several parts of the connection.

It is not-ed that the dies I serve in the dual capacity of compressing the end portions of the billet Q. as well as bending said billet about the former G When the billet is placed in position its end portions are compressed between the dies I and E after which the former Gr is advanced, thereby bending the billet about the former, after which the bent end portions of the billet are forced against the sides of the former by means of the rollers at the ends of the shaping levers H. The end portions of the shaping levers are in different planes, as indicated most clearly in Figs. 1 and 5, there by bringing the rear portions thereof in the plane of the cam G, and their forward portions in the plane of the former G.

From the foregoing description, taken in connection with the accompanying drawings, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention appertains, and while I have described the principle of operation of the invention, together with the device which I now consider to be the embodiment thereof, I desire to have it understood that the device shown is merely illustrative, and that such changes may be made when desired as are within the scope of the claims appended hereto.

Having thus described the invention what is claimed as new, is

1. In a horseshoe forming machine, the combination of a die for receiving the blank after being bent into horseshoe form, mechanism for bending a billet into horseshoe shape, the same including a former arranged to move the blank and deposit the same upon the beforementioned die, a push bar arranged to move the horseshoe into proper position after being received upon the said die, and a movable die provided with means for forming nail grooves and nail openings in the horseshoe.

2. In a horseshoe forming machine, the combination of a die for receiving the blank after being bent into horseshoe form, mechanism for bending a billet into horseshoe shape, the same including a former arranged to move the blank and deposit the same upon the bcforementioned die, a movable die provided with means for forming nail grooves and nail openings in the horseshoe, a push bar arranged to move the horseshoe into proper position after being received upon the said die, a lever for operating the push bar, and a spring interposed between said lever and push bar.

3. In a horseshoe forming machine, the combination of a die adapted to receive the blank after being bent into horseshoe form, mechanism for bending the billet into the shape of a horseshoe including a former arranged to deposit the horseshoe upon the beforementioned die, means for moving the horseshoe into proper position upon the die, a second die for completing the finish of the horseshoe, and means for removing the finished horseshoe from the die, the same including a reoiprocatory pivoted latch which rides over the horseshoe and engages therewith so as to remove the horseshoe from the machine upon movement of the latch in the opposite direction.

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

STANLEY MARTIN CRONE.

Witnesses:

E. E. DIEFENDERFER, A. P. SCHAADT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.