US1421725A - Attachment plug for oiling systems for internal-combustion engines - Google Patents

Description

R. w. SAUNDERS. ATTACHMENT PLUG FOR OILING SYSTEMS FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED OCT- B, 1921.

31,421,725. I Patented July 4, 1922.,

A TTOR/JEYS JRANDA-LL VIZLLIAIE SAUNDERS, 0F BROOK-LYN, 'NE'W YORK.

Specification of Letters Fatent.

Patented July 4., 1922.

Application filed October 8, 1921. Serial No. 506,418

'1' 0 all to hom it may concern Be it known that I, RANDALL WILLIAM SAUNnnns, a citizen of the United States, and a resident of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in rittachment Plugs for ()iling Systems for Internal-Combustion Engines, of which the following is a specification.

This invention relates to oiling systems for internal combustion engines and more particularly to an attachment plug therefor. The object of the invention is to provide a plug of the above character adapted to be used for facilitating the blowing out or cleaning the interior of pipes or conduits employed in oiling systems for internal combustion engines or the like.

It is also an object of the invention that the plug be adapted to be easily attached or positioned.

It is a further object of the invention that the plug be adapted to be easily connected with a source of compressed air supply or the like.

Other objects will hereinafter appear.

The invention is illustrated by way of eX- ample in the accompanying drawings, in which Figure 1 is a view in side elevation of an internal combustion engine with which the present invention may be utilized and parts of the engine housing being broken away to more clearly illustrate the application of the invention.

Figure 2 isa vertical sectional view of a check valve employed in the oiling system for the internal combustion engine shown in Figure 1.

Figure 3 is a view in side elevation of the check valve and showing the attachment plug applied thereto.

Figure 4; is a view in side elevation of the plug.

Figure 5 is a vertical sectional view of the same.

Referring to the drawings more particularly, E indicates generally the internal combustion engine of which C is the crank case, C crank shaft, R a connecting rod between a piston and crank shaft. In the particular type of oiling system shown there is employed a pipe or conduit P which eX- tends the entire length of the crank case and positioned above the crank shaft as shown. At the rear end of this pipe there is connected therewith a check valve V. The check valve V consists in a body portion 7 having extending therefrom the exterior-1y threaded nipples 8 and 9 and the interiorly threaded nipple 10. The nipple 10 has threadec'i therein a plug 11 which has formed upon its lowerend a stud adapted to engage a compression spring 12, said compression spring in turn engaging a ball 13 which is adapted to close the passage of the nipple 9. The nipple 8 is threaded into the associated wall of the engine and communicates with the pipe P, while the nipple 9 is connected with a pipe 14, and the pipe 1 1 in turn being suitably connected with a pump P. The pump P is adapted to force oil upwardly through the pipe 14, unseat the ball 13 and force the oil into the pipe P.

The pipe P is provided with a plurality of orifices 15 which are spaced in equal intervals the entire length thereof and adapted to permit oil to fall upon the bearings of the crank shaft C for lubricating the same in a manner well understood. The forward end of the pipe P is closed by a screw plug 16. Also there is provided a pipe or tube 17 which communicates at its one end with the oil pressure pipe 14, and at its other end with a gauge G whereby the amount of oil pressure in the pipe 14 may be determined.

in an oiling system of this nature, as is well known, the orifices 15 of the pipe P become clogged from sediment and other foreign matter in the oil and thus stops the oiling of the crank shaft bearings which it is desirable to avoid." In fact manufacturers who placeinternal combustion engines upon the market employing oiling systems of this nature instruct that the pipe P should be blown out and cleaned at frequent intervals in order to avoid any possibility of its orifices 15 being clogged.

in carrying out the present invention, I provide a plug of the design and structure generally indicated at A in Figure 1 and specifically shown in Figures and 5. The plug consists in a body portion 18 which is in the form of a hexagon nut, or the like, and from one side of which there extends a boss 19 which is exteriorlv threaded as at 20 and adapted for being threaded into the nipple 10 of the check valve V. The other side of the body portion or nut' head 18 is formed with a stem or nipple extension 21, and a passage 22 extends through said tion to'the usual stem projecting from an air valve on an automobile tire, or the like, and is adapted to be utilized in the same manner, that is, when inserted into the end of an air hose connected with a source of compressed air, supply the same will operate thevalve within the air hose to permit compressed air to enter the passage of the plug.

In utilizing the present invention, the plug l1 of the check valve V is removed and the plug A substituted. An air hose as indicated at 23, Figure 1, may then be positioned on the nippleor'stem 21 of the plug and air injected into the pipe P. The air cannot pass downwardly through the check valve into the pipe 141 for the reason that the ball 13 of the check valve would not permit such passageof the air. The compressed air en tering' the pipe P will of course blow any sediment within the orifices 15 of said pipe, andthe plug 16 may be removed at the same time in order to permit all sediment or foreign matter Within the pipe to be freely blown therefrom.

While I have shown my particular invention as being utilized in connection for blowing out; or cleaning an oiling system for internal combustion engines, I am well aware otthe factthat the same could be employed for similar purposes with equal advantages as indicated by the appended claims.

1. In an oiling system of the character described, a conduit or pipe connected to a.

source'of oil supply under pressure at its one end and having outlet passages for oil distribution, and also having interposed between the ,source of oil supply and outlet passages a one-way valve, in combination, means whereby an air hose may be connected with the interior of the conduit or pipe at a point intermediate its one-way valve and distributing outlet-s for the purpose described.

2. In an oiling system of the character described, including a pipe or conduit connected at its one end to a source of oil supply under pressure and having outlet passages for distributing oil, and also having a one-way valve interposed between its outlet passages and source oi'Poil supply, an opening with a removable closure therefor occurring intermediate the one-way valve and outlet passages, in combination, a plug adapted to be substituted for thelremovable closure of the opening in said pipe and said plug having a passage therethrough and being adapted to be connected with 'an air supply hose for the purpose described.

3. In an oiling system oft-he character described, including a conduitor pipe connected to a source of oil supply under pressure at its one end and having outlet passages tor the distribution of the oil, and also having a one-way valve interposed between the outlet passages and the source of oil supply, an opening closed by a threaded plug occurring between the outlet passages and one-way valve,'in combination, a plug adapt ed to be substituted for the first named plug, and said plug having a passage therethrough and formed with a nipple extension whereby an air supplyhose may be connected therewith for the purpose described.

4-. In an oiling system of the character described, including a pipe or conduit having an opening with a removable closure theretor, in combination, a plug adapted to substitute tor the removable closure and permit the connection of a source of air supply under pressure with the pipe. V i

.5. In an oiling system of the character described, including a pipe or conduit having an openingwith a removable closure therefor, in combination, a plug adapted to be substitutedjfor the removable closure of the pipe, said plug having a nipple extension pipe for thepurwith the interior of the pipe or conduit connecting a source of compressed air supply with the pipe.

RANDALL WILLIAM SAUNDERS.

Witnesses: e v V r J. L. MINUoH, Max Conan.

adaptedto permit the connection of a source

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