US1006300A - Automatic tool-oiler. - Google Patents

Description

C. H. SHAW.

Patented Oct. 17, 1911.

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AUTOMATIC TOOL 0mm.

APPLICATION FILED AUG. 5, 1909. 1,006,300.

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AUTOMATIC TOOL OILEB. APPLICATION FILED AUG.5,1909.

Patented Oct. 17, 1911.

Pl-ANOOIIAPH co., was-mom. n. c.

CHARLES H. SHAW, 0F DENVER, COLORADO AUTOMATIC TOOL-OILER.

Specification of Letters Patent.

Patented Oct. 1'7, 1911.

Application filed August 5, 1909. Serial No. 511,400.

To all whom it may concern:

Be it known that I, CHARLES H. SHAW, a citizen of the United States, residim at Denver, in the county of Denver and tate of Colorado, have invented certain new and useful Im rovements in Automatic Tool- Oilers; an I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in oiling devices, and particularly to automatic oilers for pneumatic tools.

The ob'ect in view is the arrangement of an oiler or pneumatic tools that will auto matically feed the proper quantity of oil to the operating parts of the tool as the tool is manipulated.

Another object of the invention is the arrangement of an automatic oiler designed to constitute a connection between the tool proper and the pneumatic feed, and ar ranged so that the pneumatic feed ma force oil into the operating part of the too when the tool is in operatlon.

A further object of the invention is th arrangement of an automatic oiler fo me with means for controlling the flow of air or other tool operating medium, and arranged to intermittently feed predetermined quantities of oil with the air into the moving parts of the tool.

With these and other objects in view the invention comprises certain novel constructions, combinations and arrangements of parts as will be hereinafter more fully described and claimed.

In the accompanying drawings: Figure 1 is a fragmentary side view of a drill and oiler connected therewith, the oiler being shown in section to better disclose the con struction thereof. Fig. 2 is a side view of the oiler shown in Fi 1 with the cap and plunger removed. ig. 3 is a section through Fig. 2, approximately on line 3-3. Fig. 4 is a section through Fig. 3 on line 44, with the cap and lunger removed. Fig. 5 is a detail view of e valve or plug.

n constructing an oiler embodying the invention the same may be connected with the drill in an desired manner. The oiler also is arran ed with means for causin the positive feed of the oil re ardless o the osition of the same, or o the osition o the drill and automatically oi s the moving parts of the drill when the drill is in operation, and also automatically prevents the flow of oil when the drill is not in operation.

Referring to the drawing by numerals, 1 indicates a drill of any desired kind, preferably of the type shown in my patent issued.

September 11, 1906, N 0. 830,744. Connected with the drill 1 is a valve housing 2 having a valve member or plug 3. Housing 2 may be threaded to drill 1 or secured in any other desired manner, and is provided with a groove 4 and passage ways 5 and 6 through which the air passes into the body part. of drill 1 for operating the moving parts thereof. Housing 2 is provided with a passage way 7 which is interrupted by an opening 8 into which the plug is fitted. Passage way 7 opens into a threaded passage way 9 into which is secured a pipe from which the operating fluid is supplied. Formed in housing 2 is a passage way divided by opening 8 into partslO and 10". Passage way 10 extends from opening 9 to opening 8, and passage way 10 extends from opening 8 to passage way 5. Passage ways 10 and 10 are arranged in line. Another passage way 12 of the same size as passage ways 10 and 10 is provided, but enters opening 8 at an angle preferably of about 90 degrees to the general direction of passage ways 10 and 10". Passage way 12 extends upward through an auxiliary housing 2' and opens into chamber 13 at 14. Chamber 13 is designed to be filled with oil which is forced through passage way 12, and thence into passage way 15 formed in plug 3. Passage way 15 is provided with countersunk or beveled ends 16 and 17 in order to insure the entrance of oil from assage way 12 into passage way 15, and a so to insure the discharge of 011 from passage way 15 into passage way 10 when plug 3 has been turned to the position shown in Fig. 1. In Fig. 1 it will be observed that passage ways 10, 10 and 15 are designed to be in line when the valve is open so that an oil in passage way 15 will be forced there mm by the operating fluid.

Housing 2' is made integral with housing 2, an has formed therein chamber 13. Threaded to the outer end of housing 2 is a cap 18 which in turn has secured thereto an auxiliary cap 19 which may be easily removed for refilling chamber 13 with oil. Positioned in chamber 13 is a spring 20,

which presses against cap 18 and against a piston 21. Connecting chamber 13 and passage way or opening 9 is a port or passage way 22 for permitting operating fluid from passage way 9 to enter 'reely into chamber 13 below piston 21, and coi'isoquently give piston 21 a tendency at all times to more toward cap 18. The movement of piston 21 toward cap 18 will cause oil in chamber 13 to pass out of chamber 13 into passage way 12, and be forced into plug 3 when passage way 15 is registering with passage way 12. After passage way 15 has been filled the further flow of the oil will be prevented. When plug 3 is in such a position as to cause passage way 15 to register with passa e way 12 the valve will be closed. W hen it is desired to again operate the valve, the handle 23, which is secured to plug 3, s moved for partially rotating plug 3 until passage way 15 has moved into alinement with passage ways 10 and 10", whereupon the operating fluid will force oil in passage way 15 out through passage way 10, and through passage ways 5 and 6 to the moving parts of drill 1, the oil mixing with the operating fluid. At the same time that passage ways 15, 10 and 10 register, passage way 24 in plug 3 will register with passage way 7 in housin 2, so that an ample supply of operating fluid will be provided for the drill.

In constructing plug 3 the same is preferably made with a flat upper surface positioned at a ri ht angle to t .e general direc tion of the p ug, i the same a spring 25 which is hel in pos; tion by a plug 26. A passage way 27 also as formed'in housing 2 whereby air or other operating fluid may pass through housing 2 to the end of the plug 3 and assist in retaining the lug upon its seat. After the various arts 0 the mechanism have been assemliled and the drill is put into operation,

lug 3 will be rotated for opening and closmg the valve at short intervals so that an intermittent supply of oil is provided for the moving parts of'the drill.

As will be observed, the invention embodies the combined valve or cook for regulating the fluid, which may be any desired fluid as for instance compressed air, and a lubricant for the moving parts of the drill. Upon opening the valve a small quantity of oil is forced, together with the first blast of air, into the moving parts of the drill, after which nothing but air is supplied to the moving parts until the valve is again closed. Upon the second 0 ening of the valve a second supply of oi will be furnished the moving parts of the drill. Upon each closing, and then opening, of the valve, a predetermined amount of oil will be supplied to the moving parts of the drill with the operating fluld so that no oil will be supand has pressin a ai it a b t plied when the machine is not working, but a sullirienl supply is provided during all the time the machine is in operation because of the fuel that in practical operation of a drill of (his nature the operating lluid is turned oil and on at short intervals. Even if the praeliral operation of the drill should not require frequent turning oil and on of the operating fluid, the same can easily be turned oil and on at anytime for the purpose of su 'iplying more oil if necessary, withoutmaterial interference in the working of the drill.

What- I claim is:

1. In an automatic oiler for pneumatic tools, a. housing formed with a plurality of passage-ways extending longitudinally thereof, and a single passage-way extending transversely thereof. a plug mounted in said housing formed with a pair of parallel passage-ways registering with the longitudinal passage-ways in said housing, an oil reservoir formed with a passage-way openin into the transverse passage-nay of said housing, and a pressure inlet passage-way, and a piston in said oil reservoir designed to be acted on by the operating fluid passing through said pressure passage-way for forcing oil into said plug when one of the passageway-s therein 18 registering with the passage-way in-,aid oil reservoir.

2. In apnemnatic tool oiler, a housing formed with two air passage ways therein, a rotatable plug mounted in said housing formed with an oil passage way and an air passage way, the air passage way in said plug being designed to register with one air passage way in said housing and the oil passage way in said plug being designed to register with the other air passage way in said housing when the valve is open, a reservoir formed with a passage way designed to register with the oil passage way in said plug when said valve is closed, and means mounted in said reservoir continu ously actuated by the operating fluid of said tool for causing oil to pass throu h the passsage way of said reservoir into tie oil passage way of said plug.

3. In an automatic oiler for tools, a housing provided with a principal air passageway and an auxiliary air passage-we and an oil passage-way, an oil reservoir f brmed with an oil passageway extending therefrom, said oil reservoir being in free communication with said auxiliary air passageway, a plug formed with an air passageway and an oil passage-way, said oil passage-way being arranged to communicate with the oil passage-way extending from said reservoir when the plug is in a closed position, and to communicate with the oil passage-way in said housin when the plug is in an open position, a piston for forcing oil from said reservoir through the oil passage-way extendin therefrom into the oil passa e-way in said plug when said plug is in a c osed position, said oil in said oil passage-way in said plug being designed to be forced through the Oll passage-way in said housing when said lug is in an open position, and a spring or opposing the motion of said piston in one direction, said iston being forced against the action 0 said spring by air from said auxiliary air passage-way.

4. In an automatic oiler for pneumatic tools, a housing formed with two air passage ways therein, a plug formed with an oil passage way, and an air passage way, all of said passage Ways being adapted to register when said lug is in an open position, an oil receptacie formed with a passage way designed to register with the oil assage Way in said plug when said pin is in a closed position, and an air actuate piston for forcing oil from said receptacle into the oil passage way in said plu when the plu is in a closed position regar ess of the position of the housing, said oil in said oil passage way in said plug being designed to be forced by the operating fluid into the tool when the plug has been turned to an open position, said last mentioned means comprising a piston and a spring, said piston being in free communication with the fluid pressure operating said drill, whereby the piston is forced in one direction by said fluig pressure and forced in the opposite directio y said spring when the fluid pressure has been remove 5. In an automatic oiler for pneumatic tools, an oil reservoir, a iston mounted in said reservoir, a housing ormed with a pair of passageways, one of which is desi had to admit compressed fluid into said oi reservoir for acting on said piston, the other of said assageways acting as a discharge port for t e 011 in said reservoir, and a plug formed with parallel passageways for controlling the oil and operating fluid enteri said tool, said housing being formed wi tfi parallel passageways registering with the parallel passageways in said plug when said tool is in operation.

6. In an automatic oiler for pneumatic tools, an oil reservoir, a piston mounted in said reservoir, means for normally resisting the movement of said piston, a housing formed with a pair of passageways, one of which is designed to admit compressed fluid into said reservoir, for acting on said piston, and the other of said passageways acting as a discharge port for the oil in said reservoir, and a plug formed with parallel passageways extendingl from one side to the other for controlling t e operating fluid and oil enterin said tool, said housing being formed wit parallel passageways for registering with the parallel passageways in said plug when said tool is in operation.

In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES H. SHAW.

Witnesses:

CARLE WHITEHEAD, ALBERT L. Voon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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