US1098408A - Upsetting-machine. - Google Patents

Description

E. RORIVE.

UPSETTING MACHINE.

APPLIGATION FILED APR. 8, 191a,

Patented June 2, 1914.

w w h E H Jggr m W ITNESSES; 1N VENTOR ERNEST womvz, BY HIS nrrolmflg UNITED STATES PATENT OFFICE.

ERNEST RORIVE, 0F BRUSSELS, BELGIUM.

UPSETTING-MAGHINE.

To all whom it may concern Be it known that 1, Banner Rourvn, sub ject of the Belgian King, residing at Brussels Belgium, have invented a new and use ful Upsetting-Machine; and I do hereby declare the following to be a full, clear, and exact description of the same.

This invention relates to an upsetting machine to form the shoulder ring and tapering butt-end of jumpers or mining tools, wheel-axles and so forth.

The method is substantially characterized in that the extremity of the rod or tool in one operation has its handle end tapered and formed with a shoulder ring by means of a compressor piston or plunger moved to and fro through the intervention of a crank, a helicoidal wheel or any other suitable mechanism. The portion immediately behind the shoulder ring, after same has been formed, is pressed in a bearing fitted with a sleeve having a tapering bore or any other suitable bore so that the portion adjoining the shoulder ring, during the compressing operation, shall assume the form of the interior of the sleeve. At a suitable distance from the said bearing there is provided a clamping vise which can be moved relatively to the former by means of an eccentric, a wheel-train and a hand lever.

According to the present invention the space within which the shoulder ring is to be formed is incased so that the air in such space can be heated in order to keep up the temperature of the work piece as long as possible.

An embodiment of an apparatus for carrying out the operation is shown in the accompanying drawings by way of example.

Figure 1 is a longitudinal section of the apparatus with the plunger in its starting position. Fig. 2 is a side elevation of the apparatus showing the plunger in ts forward position. Fig. 3 is a vertical section through the vise or gripping jaws drawn to a larger scale. Fig. 4 is a cross-section through the bearing. Fig. 5 shows the handle end of a tool in the finished condition.

A table or bed 1, which may preferably be made of channel iron, is fitted with cheeks 2 in which is mounted a helicoidal. wheel 3 keyed to a crankshaft 4. To the underside of the table are fixed bearings 5 for carrying a worm 6 which engages the wheel 3 and which can be rotated by means of a handle 7. The handle 7 may be replaced by a belt Specification of Letters Patent.

Application filed April 8, 1913.

Patented J line 2, 1914.

Serial No. 759,643.

pulley. To the crank pin 8 is attached a connectlng rod 9 which is pin-jointed at 11 to the plunger 10. The latter moves in a guide 12 and the extremity of said plunger 1s formed with a cavity 13 corresponding to the form to be given to the handle end of the tool or to any other work piece. In front of the guide 12 at a suitable distance apart is a laterally slotted bearing 14 which is fixed to the table 1 by screws 15 and is fitted with a divided sleeve 16 having a tapered bore, so that the tool or the like can be readily withdrawn therefrom after the operation. The two parts of the sleeve 16 are connected together by pins 17 for insuring the correct assemblage of said parts. The lateral slot of the bearing 14 insures a rapid fixing and releasing of the sleeve 16.

The rod introduced into the bearing is firmly retained but for further security the rod is gripped in a vise or clamping jaws attached to clamps 1S and 19 respectively. For this purpose, the clamping jaws 20 are mounted on pins 21 controlled by toothed wheels 22, 23 and a hand lever 24. A portion of the pins 21 is eccentric so that the jaws can be set at different distances apart by turning the pins 21. The jaws have semicircular gripping recesses 27.

The two toothed wheels 22 and 23 (Fig. 3) disposed beneath the table serve to regulate the eccentric positions of the pins and consequently that of the jaws 20. The latter are controlled by a hand-lever 24. The table 1 is preferably mounted upon a sup port or base 25 in order to allow the whole machine to be readily operated.

The operation is as follows: The bar of iron or steel which is used for making the jumpers and the like is heated to red heat at one end of a definite length. It is then passed into the sleeve of the bearing 14 from the front of the machine. The screw 15 is tightened so as to secure the rod firmly in he bearing 14. The two clamping jaws 20 of the tightening device are then tightened against the rod and handle 7 is turned so that the crank shaft rotates clockwise in the direction which causes the connecting rod 9 as also the plunger to advance. The tapering socket 13 acts on the end of the rod and forces it to assume the form shown in Fig. 5.

When the end of the rod butts against the end of the tapering socket 13 the superfluous metal is driven outwardly and thus forms,

in the space between the guides 12 and the bearing 14: a shoulder which produces the shoulder ring of the jumper. The free space referred to has a cover 26 to prevent cold air entering. As the internal end of the sleeve 16 is tapered, the end portion of the rod will take the same shape and thereby become stronger at the portion which ordinarily breaks off.

The crank shaft 4 can obviously be replaced by an eccentric and the tightening bearing may be modified without altering the nature of the invention. The butt end may likewise remain cylindrical if preferred,

I claim:

draw the block together and cause the split sleeve to firmly hold the article.

In testimony whereof, I have signed my name to this specification inthe presence of 25 two subscribing witnesses.

ERNEST RORIVE. lVitnesses:

ED. BRIGHAM- VON KILY, CHAS. Roy NASMITH.

Copies otthil patent may be obtained for five cents each, by addressing the Comminionet o2 Patentl,

Washington, D. G.

Images