US23502A - Machine fob making hoes - Google Patents

Description

UNTTED STATES PATENT OFFICE.

HENRY SAUERBIER, OF NEVARK, NEW JERSEY.

MACHINE FOR MAKING HOES.

Speccation of Letters Patent No. 23,502, dated .April 5, 1859.

To all whom it may concern:

Be it known that I, HENRY SAUERBIER, of the city of Newark, in the county of Essex and State of New Jersey, have invented certain mprovements in Machines for Making Hoes; and I do hereby declare the following to be a full and exact description thereof, reference being had to the drawings which accompany this specification and make part thereof. l

The nature of my invention consists in adapting machinery to forming the eye of hoe from a iiat disk of sheet steel.

In the drawings Figure l is a perspective view of the machine. Fig. 2 is a front View of a hoe when finished. Fig. 3 is the form of the disk prepared to put into the machine. Fig. -l an edge view of the hoe iinished. Fig. 5 is the pair of dies between which the disk is pressed and held while the eye is forming. Fig. G shows the cam lever which presses and holds the dies together with the disk between. It also shows the lever and pin which turns down the part of the disk intended for the eye. Fig. 7 is the pin around which the eye is formed. Fig. 8 shows the pin left in position when the lever used to press it down, is being raised. Figs. S) and 10 show the clamps for turning the parts of the disk over the pin preparatory for being welded together.

The same letters refer to the same parts in each iigure.

I have steel plates rolled, with the edge out of which the eye of the hoe is formed, thicker than the other; and in the form required; the thickness not being a regular taper from one edge to the other but just so as to give strength where required. A disk of the form of Fig. 3 is cut from the plate. The two wingsl a and Z) when turned down and bent over and the ends welded together, form the eye. This disk is placed in the machine between two dies c and (Z, with the wings a and b projecting above the top of the dies. The lever A being turned down compresses the disk into the form shown by the shape of the dies in Fig. 5. A kind of a V projection is formed in the front under the eye of the hoe, tapering to a point which gives support and strength to the blade. The pin Fig. 7 is then hung upon the lever B, and the lever on being brought down turns the wings a; and b over on to the top of the die (Z, and as in the top of the die, is a segment of a circle of the size of the outside `of the eye of the hoe, the ends naturally turn up. The jaws of the clamp e are made to project over the top of the die d, one on each side of the indentation on the top of the die. These receive the ends of the wings a and Z) as they are being turned over, and bring them when turned down into the position shown in Fig. 10, that is, lying in the open jaws of the clamp ready to be turned over the pin 7 when the aws shall close. It will be noticed that one jaw of the clamp is as much higher than the other as the thickness of the wings, the obj ect being to lap the ends of the wings over each other ready to be taken to the forge and welded. Then the ends are turned over the pin (7) then the pin (7) is knocked out which as it is tapering to give the eye its proper form, is easily done, and the pin is again hung on the lever B, on which a stud f is placed fitting loosely into the hole n in pin, 7.

As various methods can be employed to open and close the jaws of the clamps, I do notconine myself to any one in particular. Two modes are shown in Figs. 9 and 10 either of which can be made effect-ual. These clamps are attached in front of the die Z), and are operated by the lever C, which on being brought down, closes the clamps with the advantage of leverage and the strength of the operator.

The block D to which the whole of the levers are attached and in which the dies are placed is made of cast iron of such thickness and solidity as the operation may require.

The advantage of this method is, the whole of the operation to form the eye ready for welding can be done instantly while the thin disk of steel is at the proper heat to work with ease and preserve its quality, by which a lighter hoe of equal strength can be made superior to the old kind, made by welding an iron eye to a steel blade.

I do not claim any of the parts of the machine separately; but

lVhat I claim and desire to secure is- The cam lever A and the dies c and d in combination with the lever B, the loose pin 7 and the clamps e, constructed and arranged substantially in the manner and for the purpose herein above specified.

H. SAUERBIER.

Witnesses WM. M. GooDING, JOHN Gr. DEMARnsT,

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