US932513A - Oiling device for stock-dies. - Google Patents

Description

I. THATGHER.

OILING DEVICE FOR STOCK DIES.

APPLICATION FILED MAY 27, 1908:

Patented Aug. 31, 1909.

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932,513; Specification of Letters Patent. Patented Au 31 1909 A ine-mob filed May 27,1900. Serial no. easiae'o.

To altwhom it may concern:

Be it known that I,FRANK THATCHER, a

citizen of the United States, residin at El Paso, in the county of El Paso an State of Texas, have invented new. and useful Improvements in ()iling Devices for Stock Dies, of which the following is a specifica-.

plenished whenever necessary.

A further object of the invention is to so combine and arrange the mechanical parts of the oiling device that they may be readily taken apart to facilitate the cleaning of the oil-in device as a whole.

With the above and other objects in view,

- the invention consists in the novel constructrolling means.

tion and arrangement herein fully described, illustrated and claimed. g

In the accompanying drawing, Figure 1 isa plan view of a thread-cutting die stock showm the oiling device-applied thereto.

' Fig. 2 is a longitudinal section through the same. Fig. 3' is an enlarged longitudinal section through the handle which is utilized as the oil container, showing the valve conthe line 44 of Fig.3.

In the drawings, 1 designates the die stock which is chambered out to receive the die 2, the latter being held in place by means ofthe usual retainer cap 3. The die stock is also provided with the'usual socket extensions 4 which receive the inner ends of the handles 5and 6.

The handles 5 and6 are ordinarily tubular, and in carrying out the resent invention, one of said handles, indicated at 5, is

provided at its inner end with an external valve seat 7 in connection with which anexternally-arranged valve 8 is employed, the latter being mounted fast on the inner end Fig. 4 is a cross section on entirely through the tubular handle 5, as

shown -in Fig. 3.

In the outer end of the handle 5 there is arranged a bushing 10 which is preferably secured into the handle, as best shown in Fig. 3, so that it may be readily removed for the purpose of re air or cleanin The bushing is provide at its inner end with a central guide opening 11 for the stem 9, and at a point nearer its outer end, said bushing is provided with an annular shoulder 12 against the outer side of which bears a guide 13 forming a second bearing for the stem 9. Encircling the stem 9 within the bushing 10 is'a va ve-closing spring 14. This spring is interposed between the guide 11 at the inner end of the housing and a bearing shoulder 15 on the valve stem 9 so that the tension of said spring is exerted to hold the valve 8 normally closed.

The outer end of the bushing 10 is intern'ally threaded to receive an end cap or closure 16, the outer end of which is enlarged to form. a head, as shown in the drawings, while one or more gaskets or packing rings 17 may be interposed between the head of the cap and the extremities of the handle 5 and bushing 10 to form a liquid-tight joint, the construction referred to being illustrated in. Fig. 3. The cap 16 carries a push button 18, the stem or shank 19 of which is provided at its inner end with an annular stop shoulder 20 which works in a recess 21 in the cap, the outer end of said recess.being reduced to form a corresponding shoulder against which the annular stop shoulder 20 bears when the button is in its outward position, and against which the head of the button bears when said button is pushed inward. At its inner end, the shank of the button is provided with a socket or recess 22 in which the outer extremity of the valve stem. 9 is received, as shown in Fig 3, the arrangement being such that when the button 18 is pushed inward, it acts to move the valve stem 9 in acorresponding direction to open the valve 8 and allow the oil to pass to the die space of the stock. At the same time, the construction described will admit of the "removal of the cap 16 to enable oil to be in- .5 bushing removably fitted stock and all parts of the oiling. mechanism may be detached from said handle, thereby iving free accessto all parts of the oiling device and enabling the same to be kept in good working condition.

conduit leading to the die space and provided at its inner end with a terminal valve seat, an externally arranged valve movable relatively to said seat, a valve stem extending longitudinally through y a threaded ensaid handle, a'

gagernent mul eater end of the handle and prowded -withja' gu ide opening for said stem, 5 valve-closmg spring engaging said stem and housed within the bushing and removable therewith, a detachablefca fittin lnto the outer end of the bushing, an a pus button carried said cap having a shouldered engagementtherewith and adapted to engage and move the valve stem.

In testimon whereof I afiix my signature 25 in presence 0 two witnesses.

FRANK THATCHER. V W1tn esses: I

U. A; NOEN v WM, H. ENGEL.

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