US1198647A - Machine for forming clips on horseshoes. - Google Patents

Description

G. F. MA-RSKELL. MACHINE FOR FORMING CLIPS 0N HORSESHOES. APPLICATION FILED OCT. 11, 1915.

1 1 98,647 Patented Sept. 19, 1916.

2 SHEETS-SHEET 1- wea /M01 e. F. MA RSKELL. MACHINE FOR FORMING CLIPS ON HORSESHOES.

APPLICATION FILED OCT. II. 1915.

Patented Sept. 19, 1916,

2 SHEETSSHEET 2.

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UNITED STATESPATENT OFFICE.

GEORGE F. MARSKELL, 0F ERIE, PENNSYLVANIA, ASSIGNOR TO UNITED STATES HORSESHOE COMPANY, OF ERIE, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

MACHINE FOR FORMING CLIPS ON HORSESI-IOES.

Application filed October 11, 1915.

To all whom it may concern: 1

Be it known that I, GEORGE F. MARsKELL, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Machines for Forming Clips on Horseshoes, of which the following is a specification.

This invention relates to machines for forming clips on horse shoes and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a plan view of the machine. Fig. 2 a front elevation of the machine. Fig. 3 a section on the lines 33 in Figs. 1 and 2. Fig. 4 a plan view of the shoe support. Fig. 5 a front elevation of the same. Fig. 6a section on the line 6-6 in Figs. 4 and 5. Fig. 7a rear view of the plunger. Fig. 8 a side elevation of the same.

' Fig. 9 a plan view of a toe portion of a shoe with the completed clip thereon. Fig. 10 an end view of a toe portion of a shoe at the completion of the operation of the plunger. Fig. 11 a front elevation of a toe portion of the shoe with the clip completed.

The frame of the machine is made up of a bed plate 1 which is of rectangular shape. Legs 2 are bolted to the bottom of this bed plate and the superstructure made up of the posts 3 at the rear, front and back rails 4 and the cross piece 5 at the front and supporting posts 5 at the ends of the rail 5.

The shoe support 6 rests on the front portion of the bed plate. It has the slotted openings 7 at the ends by means of which it is bolted to the bed plate by means of screws 8 (see Fig. 2). A backing plate 9 is secured to the front face of the bed plate 1 and set screws 10 extend through the backing plate 9 against the shoe support 6 and hold it in place on the bed plate. The shoe support has a central opening 11 in which is arranged a projection on the shoe form 12. The shoe form is secured in place with the projection in the opening 11 by a screw 13 which extends into the shoe support 6. The shoe form may be adjusted relatively to the plate by means of a set screw 14 which extends through the rear wall of the shoe support and the screw is locked in adjustment by a jam nut 15. Screws 16 extend Specification of Letters Patent.

Patented Sept. 19, 1916.

Serial No. 55,157.

through the front face against the shoe form 7 so as to oppose the set screw 14. A guide clip 17 1s carried by a slotted plate 18. The slotted plate is secured on the shoe support by a screw 19.

In practice the shoe is placed on the shoe this purpose is as follows: A clamp plate 20 extends over the shoe support. Rods 21 extend from the ends of the clamp plate through openings in the front side of the bed plate. A rod 22 connects the rods 21 and the rod 22 passes through a slot 23 in the rock arm 24. The rock arm 24 is fixedon a rock shaft 25. The rock shaft is carried in bearings 25 secured to the underside of the bed plate. A weighted arm 26 extends from the rock arm 25 and returns the rock arms and clamps 20 after each clamping operation. A rock arm 27 is secured to the rock shaft 25. It has the cam roller 28 at its upper end in the path of a cam 29. The cam 29 is fixed on a shaft 30. The shaft 30 is mounted in bearings 31 on the sides of the bed plate 1. A gear 32 is fixed on the end of the shaft 30 and meshes a gear 33 on the drive shaft 34. The drive shaft'34 is journaled in bearings 34 on the sides of the frame. Tight and loose pulleys 35 and 36 are arranged on the end of the drive shaft 34 and the fly wheel 37 is also fixed on said shaft. In the operation of the machine, the drive shaft 34 rotates continuously, thus rotating the cam 29 continuously. The timing of the machine is such that the operator can remove a shoe and replace another over the shoe form in the interval between the action of the cam 29 on the clamp mechanism. In order to slow the speed of the machine I prefer to form the cam 29 with a double throw so that it actuates the clamp twice in each rotation of the shaft.

After the shoe is clamped it is desirable to strike up or force out a part of the toe portion of the shoe to furnish the material for the toe clip. This is accomplished by the following mechanism :A die 38 is carried by a plunger 39. The plunger has a shoulder 40 against which the upper end of the die abuts. The die has a countersunk opening 41 in which a bolt 42 is arranged for clamping the die on the end of the plunger. The die is so shaped that as the plunger descends the plunger forces off a small portion of the metal on the front face of the toe of the shoe. The shoe support and shoe form are adjusted so as to advance the front edge of the shoe so as to bring it in just the right relation to the die to strike up the right amount of material for the toe clip. In Fig. 9 is shown a toe portion 45 of a shoe and the toe clip 44. In Fig. 10 is shown the struckup portion 46 as it is left by the die 38. In Fig. 11 is shown a front view of the finished clip 44. The plunger 39 extends through a guide groove 47 in the front rail 5 of the superstructure. A roller support 48 is secured in the upper end of the plunger by means of a bolt 49 which extends through a slot 47 in the upper end of the plunger. A roller 50 on the roller support 48 extends through a slot 51 in the end of a lever 52. The lever 52 is journaled on a shaft 53 ex tending between the rails 4 of the superstructure. A cam roller 54 is mounted on the lever 52 and extends into a cam slot 55 of a cam 56. The cam 56 is fixed on the shaft 30. A spring 57 tends to return the lever 52 so as to return the plunger 47. While the cam slot 55 would accomplish the return of the plunger it is necessary to have the plunger retracted promptly in order to clear the wiping swages and the spring 57 is used for this purpose. After the die 38 has struck up the material from which the toe clip is to be formed a wiping swage is passed over it to draw out the metal and complete the formation of the clip. This swaging is accomplished by the swage 58 which is fixed on the shaft 30. It is provided with the wiping rollers 59 which engage the struck-up portion 46 on the face of the shoe and draw it down over the anvil 6 formed on the front face of the shoe support. It will be understood that the cam 56 has two throws and there are two wiping rollers 59. The machine makes the two operations with each revolution of the shaft 30.

The timing of the different parts is as follows :-The shoe is placed on the form. The clamp is drawn into position through the action of the cam 29 and held clamped, the cam 29 having quite a dwell in the clamp position. The die 38 is then forced down striking up the material 46 for the clip. The die is then retracted and the wiping roller 59 carried over the face 6 drawing out the material 46 into the form of the clip 44.

That I claim as new is 1. In a machine for forming clips on horse shoes, the combination of a shoe holding device; a die operating on the toe of the shoe in the holding device in a direction at right angles to the face of the shoe to force outwardly a body of metal; and a wiping swage acting in the same general direction as the die on the metal struck up by the die for drawing out the clip.

2. In a machine for forming clips on horse shoes, the combination of a shoe holding device; a die operating on the toe of the shoe in the holding device in a direction at right angles to the face of the shoe to force out-.

wardly a body of metal; a wiping swage acting in the same general direction as the die on the metal struck up by the die for drawing out the clip; and means carried by a shaft for actuating said device, advancing and retracting the die and advancing the swage.

3. In a machine for forming clips on horse shoes, the combination of a shoe support having a shoe form thereon; a clamp for securing the shoe on the support; a rock shaft; a rock arm actuating the clamp carried by the rock shaft; a cam lever carried by the rock arm; a clamp cam holding said cam lever; a cam shaft on which the cam is mounted; a die for forcing outwardly material from the front edge of the shoe on the shoe support; a plunger carrying the die; a plunger lever for actuating the plunger; a die actuating cam carried by the cam shaft for actuating said plunger lever; and a rotating swage carried by the cam shaft adapted to Wipe the material struck up by the die to form the clip.

In testimony whereof I have hereunto set my hand.

GEORGE F. MARSKELL.

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

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