US552592A - Horses hoe-calk-form ing machine - Google Patents

Description

(No ModeL) 4 Sheets-Sheet 1.

G. A; ST1-EINER 8v SJS. BABBITT.

HORSESHOB GALK FORMING MACHI'IIEIl Patented Jan. 7, 1896.

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G. STEINBR an s. s. BABBITT.

HORSBSHOE GALK PORMING MACHINE.

No. 552,592. Patented Jam. 7, 1896.

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(No Model.) 4 Sheets-Sheet 4.

G. A. STEINER & S. S. BABBITT. lHOR'SBSHOB GALK roRMING MACHINE.

No. 652,592. Patented Jan. 7, 1896.

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UNITED L,STATES PATENT OFFICE.

GOTTLIEB A. STEINER, OF ALLEGHENY, AND SEVARD S. BABBITT, OF PITTSBURG, ASSIGNORS TO THE SHOENBERGER STEEL COMPANY, OF

PITTSBURG, PENNSYLVANIA.

H'ORSESHOE-CALK-FORVIING MACHINE.

SPECIFICATION forming part of Letters Patent No. 552,592, dated January 7, 1896.

Application iiled February 8, 1895. Serial No. 537,727. (No model.)

To all whom it may concern:

Be it known that we, GOTTLIEB A. STEINER, of Allegheny, and SEWARD S. BABBITT, of

Pittsburg, in the county of Allegheny andl State of Pennsylvania, have invented a new and useful Improvement in Horseshoe-Calli- Forming Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation of our improved machine. Fig. 2 is a vertical central section ofthe same. Fig. 3 is a front elevation. Fig. 4t is a top plan view of the bottom dies. Fig. 5 is a side elevation of the same. Fig. 6 is a bottom plan view of the upper die, and Fig. 7 is a side elevation of the same.

Like symbols of reference indicate like parts in each iigure.

Our invention relates to the machines em-` ployed for forming calks upon horseshoes, and it is designed to provide a machine which shall rapidly and automatically bend and upset or shape the calks by the use of simple mechanism and with uniform results.

In the accompanying drawings, 2 represents thebaseof the machine; 3, the die-plate, and 4i 4 the inclined standards, having on their inner sides the guides 4 for the die-carrying plunger 30. Between the base and the plate 3 is supported the inclined cylinder 5, having therein the plunger 6, carrying at its upper end the movable bottom die 7 The cylinder 5 is a single-acting cylinder, and below the plunger is maintained a constant pressure, by means of which the movable bottom die is normally maintained at the upper end of its stroke. This die is guided within an inclined hole in the die-plate 3, and with it co-operates a stationary die 8, having an inclined side along which moves the reciprocating die y 7. These bottom dies are provided with interfitting recesses and ribs,and between them are formed the calli-shaping recesses 9, these preferably being partly in each die, as shown in Fig. il. The movable bottoni die is provided with th'e curved recess 10 for the horse` shoe, as shown, the ends of the shoe projecting above the stationary die and registering with the shaping-apertures 9. i

The upper die shown in Figs. 6 and 7 is composed of a holder 11 and a plate 12, the holder 11 being secured to the lower end of the cross-head and projecting forward therefrom. These parts are removable, so that similar parts of different sizes may be substituted for different-sized horseshoes. This is also the case with the bottom dies 7 and 8. The contactplate 12 is a small plate set in a recess in the holder 11 and having its edge of the same shape as that of the moving lower die, and through holes in the holder extend the squared pins 13, which register with'the die-recesses of the lower dies. The heads Vof these pins are contacted with by a hammer la, consisting of a steel block set in the lower end of a cross-head 15, moving within guides 16 in the outer cross-head and having a springshank 17 provided with an end hook 18, which normally takes over a stationary cross--piece 19 upon the frame and holds the inner crosshead and hammer in elevated position. To the hammer is secured the guide-stem 20, which extends up through a hole in a forwardly-projecting lip 21 upon the outer cross-head and terminates in a head 22. Between the lip 21 and the inner cross-head is a spiral spring 23, which surrounds the stem 20 and is compressed in the downward movement of the outer cross-head. To the pitman 24: of the outer cross-head is secured the forwardly-extending projection 25, in which is secured the set-screw 26, which is arranged to strike the curved face of the hook 18 when the crossn head has moved down a certain distance and force the hook out of engagement, upon which the hammer is driven down by the spring.

The actuating-shaft of the machine is prod vided with a clutch 27 of any desired character, this being actuated by a foot-lever 2S connected thereto by a link 29.

The action is as followsz The parts being in the position of Fig. 1 a horseshoe is placed in the curved recess of the movable lower die, its ends projecting over the stationary lower die, and, the clutch being thrown into en gagement, the upper die moves down and clamping the shoe in place forces down the movable lowerdie, the projecting ends of the shoe being bent upwardly within the die-recesses. The set-screw upon the pitman then engages the hook upon the hammer, and the hammer being released is driven forcibly down by the compressed spring, and striking the pins 13, which are heldin raised position by a spring or equivalent device, causes them to enter the die-shaping recesses and form the calks by upsetting the bent ends of the shoes. The cross-head 30 is then raised and carries the inner cross-head and hammer back to their place, the lower movable die again rising to place, where itis held by suitable stops, and the shoe being removed the action is repeated.

The advantages of our invention will be appreciated by those skilled in the art, since the machine is simple and compact and at one stroke bends and shapes the calks. As the dies are inclined to the horizontal and the calks project upwardly when the lower movable die rises, the insertion and removal of the shoes is rendered much easier than formerly.

Modifications in the form, con struction, and arrangement of the parts may be made by the skilled mechanic without variance from our invention as deiined in the following claims.

What we claim is* l. The combination with a lower stationary die and a lower movable die having an open ended recess between their meeting faces, of

an upper movable die, and a hammer arranged to strike that portion of the article in the recess; substantially as described.

2. The combination with a die, of a movable die co-operating therewith, a hammer, means for actuating the same, and means upon the movable die arranged to release the hammer; substantially as described.

3. rlhe combination with a die, of a movable die co-operating therewith, a hammer movable upon Ithe movable die, a catch arranged to hold the hammer, and means upon the die arranged to release the catch; substantially as described.

4. The combination with a die, of a movable die co-operating therewith, a hammer movable thereon, a spring catch taking over a stationary part of the frame and arranged to hold the hammer in place, a spring arranged to drive the hammer and compressed by the die, and means upon the die arranged to release the catch; substantially as described.

5. In calli-forming mechanism,a stationary and movable lower die having calli-forming recesses between their meeting faces, and a reciprocating upper die arranged to clamp the shoe and move the lower die downwardly; substantially as described.

In testimony whereof we have hereunto set our hands.

GOTTLIEB A. STEINER. SEWARD S. BABBITT. Witnesses CHAs. L. FITZHUGH, J. M. BRowNsoN.

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