US1319600A - Oiler for stocks and dies - Google Patents

Description

1.x. MARSHALL.

DILER FDR STOCKS AND DIES.

APPLICATION FILED SEPT-1. 1918.

Patented Oct. 21,1919.

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JESSE I. MARSHALL, 0F ROGERS, ARKANSAS.

OILER FOR STOCKS AND DIES.

To all uz/0m t may concern.'

Be it known that l, Jnssn I. MAnsHALL, a citizen of the United States, residing at Rogers, in the county of Benton and State of Arkansas, have invented new and useful lmprovements in Oilers for Stocks and Dies, of which the following is a specification.

This invention is Van improved oiler, especially adapted for application to and used in connection with a stock or die such as a pipe cutter, thread cutter, or the like,

Vthe object `of the invention being to provide an improved oiler of this kind which can be readily arranged in and attached to the handle of the stock and which yembodies force feed .mechanism by means of which lubricantcan be supplied to the tool as required.

vVith the above and other objects in view, the invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

ln the accompanying drawings;

Figure 1 is a sectional view of an oiler constructed and arranged in accordance with my invention and showing the same in use in connection with a pipe cutter.

Fig. 2 is a detail sectional view of the same, on a larger scale.

For the purposes of this specification a pipe cutter or other similar tool is indicated at 1 and the stock thereof at 2 provided with the usual tubular handle 3 which is screwed to a nipple 4 with which the stock is provided.

In the embodiment of my invention I provide a tubular container 5 ofless diameter than the handle 3 and which is adapted to be arranged therein and is provided at the inner or lower end with an inverted conical closure G which has a reduced central opening in which a spout tube 7 is secured. A cap 8 is screwed on the upper end of the handle and has a flange 9 therein which flange is internally threaded and is screwed to the upper end of the tubular container. The said cap is preferably polygonal so that it can be readily turned by means of a wrench. It will be understood that the cap to which the tubular container is attached also serves to secure the oiler in the tubular handle and forms a closure for the outer end of the tubular container.

A tubular guide and releaser 10 is threaded in the central opening in the cap 8 and is Specification of Letters Patent.-

Patented 001.21, 1919.

Application filed September 7, 1918. Serial No. 253,040.

provided with a liange finger piece ll andv also with an internally threaded upper vertical extension 12. A plunger rod 415 passes through the guide and releaser land .is movalble therein and is Vprovided at its upper end with a thumb button 14e. A tubular gage 15 is threaded in the extension 12 and a coiled eXtensile spring 16 is arranged in said extension and said gage and around the upper portion of the plunger rod and bears upwardly under `the button 1l, the said spring exerting its tension to normally force the plunger rod upwardly.

A-plunger 17 is arranged in the tubular container and has a double leather packing as at 1S andfis also'provided with a central opening through which the plunger rod passes and with a central recess 19 in which is a wick or other suitable packing for the plunger rod. A pair of lugs 20 are arranged on the upper side of the plunger and at opposite sides of the plunger rod and dogs 2l Vare pivotally mounted as at 22 in said lugs, each dog having a beveled inner end 23 which is adapted to engage the plunger rod when the dog is in horizontal position. Springs are provided which bear under the outer portions of the dogs and serve to normally hold the dogs in engaged position with respect to the plunger rod. The plunger rod is provided at its lower end with a stop 25l to limit the downward movement of the plunger.

The operation of my invention is as follows:

To fill, the cap 8 is rst unscrewed from the tubular handle 3 and the entire filler withdrawn from the handle. The releaser l0 is then unscrewed from the cap, the tube or nozzle 7 is inserted into the oil or grease and the plunger rod is pulled upwardly, thereby causing the plunger to be drawn to the top of the tubular container, thus creating a partial vacuum in the tubular container and hence causing the tubular container to be filled with the oil or grease. As the plunger nears the cap 8 the outer ends of the dogs 21 strike a bushing 26 withwhich said cap is provided and hence the dogs are released from the plunger rod. The plunger rod is then pushed back in place, leaving the plunger at the top of the tubular container. The guide and releaser is then screwed into place in the cap, its lower end serving to push the plunger down until the dogs are released from the bushing, when the dogs again, under the action of the springs 24, come in Contact with the plunger rod. The oiler is then rearranged and secured in the handle with the stock and is ready for operation. By pressing downwardly on the 'button 14 the plunger rod may be forced downwardly as far as the gage 15 will permit and by reason of the dogs 21 such downward movement of the plunger rod is communicated to the plunger, the lat ter serving to force some of the lubricant through the nozzle or tube 7 as will bennderstood. When the button is released and the plunger rod moves upwardly, said rod Vwill slip by the beveled faces of the dogs and the' plunger will remain in its lowered position due to the frictional engagement of said plunger with the walls of the cylinder.

lVhile I have herein shown and described a preferred embodiment of my invention, I would haveit understood that changes may be made in the form, proportion and construction of the several parts without departing from the spirit of my invention and within the scope of the appended claims.

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

Having thus described my invention, I claim:

l. An oiler of the class described, comprising a container, a plunger movable in the container, a plunger rod movable through the plunger, spring pressed dogs carried by the plunger to lock the same to the plunger rod for movement in one direction, and means to disengage the dogs from the rod when the plunger is at the inner end of the container.

2. In an oiler of the class described, a container, a plunger, a rod to operate the plunger and a gage to limit the extent of movement of the plunger rod and hence also of the plunger.

3. In an oiler of the class described, a

container, a plunger therein, a plunger rod movable through the plunger, a spring to move the plunger rod in one direction, and spring pressed dogs on the plunger arranged to normally lengage the plunger rod and to lock the same to the plunger when the plunger rod is'moved against the tension of thespring.

4. In an oiler of vthe class described, a. container and a cap therefor, said cap being adapted to be attached to a tubular handle to arrange the container in saidl tubular handle.

In testimony whereof I affix my signature.V

JESSE I. MARSHALL.v

Washington, D. G. Y Y l v

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