US1679887A - Lubricating apparatus - Google Patents

Description

Aug. 7; 1928.

O. ZERK, NOW BY JUDICIAL CHANGE OF NAME 0. U. ZERK I LUBRICATING APPARATUS Filed Nov. 21, 1922 2 Shets-Sh eet 1 v wm r 411.15:

sIlllIlllllllllHHlh fly OSCAR U.ZERK IAVENTOR.

HIS ATTORNEYS Aug. 7, l928.

0. ZERK, NOW BY JUDICIAL CHANGE OF NAME 0. U. ZERK L UBR I CAT ING APPARATiJS 2 Sheets-Sheet 2 Filed Nov. 21. 1922 OfiCARUZERK,

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hi5 Gram y Patented Aug. 7, 1928.

onrrso STATES TE 'r orrics.

OSCAR ZERK, NOW BY JUDICIAL CHANGE OF NAME O$CAR ULYSSES ZERK, OF CLEVE- LAND, OHIO, ASSIGN OR, BY MESNE ASSIGNMENTS, TO THE BASSICK MANUFACTUR- ING comm.

LUBRICATING APPARATUS.

' Application filed November 21, 1922. Serial No. 602,466.

This invention relates to improvements in movement automatically draws lubricant lubricating apparatus, and more particularly to that class of devices comprising a lubricant container and manuallyoperable mean fi for ejecting lubricant therefrom.

An object of this invention resides in the construction of a nipple and a one hand operated lubricating pistol, whereby a direct manually maintained leak proof contact can be formed therebet-ween, and lubricant delivered into the nipple from the pistol, by

manually pressing the pistol against the nipple.

Another'object of this invention resides in the construction of a lubricating pistol which can be held in one hand and placed in direct leak proofcontact with the nipple, and while so held will compress and deliver lubricant thereto, solely by pressure thereagainst.

Another object of my invention is to provide a lubricant dispensing pistol with a container having a relatively stationary plunger therein to create pressure against the lubricant trapped within a reciprocating delivery nozzle, when the nozzle is placed in contact with the nipple and the container is manually pressed toward the nipple.

Another object of this invention resides in 80 providing a manually operated lubricating pistol, with a lubricant container and a selffilling reciprocating delivery nozzle secured in eccentric relation thereto. to permit the lubricant to be drawn into the nozzle from 85 any position in which the receptacle is held.

Another object is to protect the walls of the container from the mechanical strain incident to developing high pressure in the ejecting means.

Another object of my invention resides in the manner in which the plunger is secured to the wall of the lubricant containing receptacle.-

Another object resides in the construction of the inner end of the reciprocating delivery nozzle and its relation with the stationary plunger whereby it will guide the plunger when pressed therein.

Another object of my invention resides in so the provision of resilient means for automatically returning the reciprocable nozzle to normal extended position when pressure thereagainst is released, which return into the nozzle from the receptacle.

These and other objects will appear in the specification and claims, and are illustrated in the accompanying drawings in which Fig. 1 is a side elevation of an assembled lubricating pistol Figure 2 is a longitudinal section through the same and a nipple, show-' ing the pistol in operative contact with the nipple; Figure 3 is a-side elevation of the nipple shown in Figure 2; Figure 4 is a side elevation of a modified form of nipple; Figure 5 is a sectional view of the modified form of nipple; Figure 6 is a sectional View taken on line AA of Figure 7 illustrating the manner in which the plunger is secured within the container; and Figure 7 is a side elevation of a modified form of pistol in which the container is the only handle means provided.

Referring to the drawings to illustrate two specific embodiments of my invention for the purpose of explaining the same, 10 designates a fluid lubricant container comprised of twosections 11 and 12, one of which is flared sufficiently at its open end to fit over the open end of the other and form a pressure fit therewith. If desired, these over-.

lapping portions of the two sections may be threaded and screwed together.

An inwardly extending, internally threaded, circular boss 13 is formed eccentrically in the end wall of the section 11 of the receptacle, and an externally threaded, elongated-bearing 14 is screwed into said boss. The boss is preferably located near the periphery of the container, for reasons hereinafter setforth.

A hollow rigid outlet nozzle'15 is reciprocably mounted within the bearing 14, and the inner open end 16 thereof extends within the container and is flared to prevent longitudinal displacement thereof. A hollow connector 17 is pressed on the outer end of the nozzle 15 and forms an integral rigid unit therewith. A ball valve 18 is positioned within the hollow'connector and is normally seated against the restricted end 19 of the nozzle, by a coil spring 20, also positioned within the hollow connector. The end of the connector provides a contact face 21 comprising a concave spherical portion 22 and an annular flange, or finder 23,

Section 12 has a square or otherwise noncircular opening opposite the boss 13 and in axial alignment therewith. A plunger extends through the opening 24 and extends slightly within the flared end 16 of the nozagainst the inner end wall of the section 12 of the container, and at the other end against the flared open end 16 of the reciprocating nozzle.

The plunger 25 may project exteriorly of the container, as shown in Figs. 1 and 2 to provide an extended handle 30- which is longitudinally knurled to receive the oval hand grip 31, which is driven thereon.

A nipple 32 has an open end 33 which is adapted to be driven into an opening of an element to be lubricated. The outer end 34 of the nipple is curved inwardly, forming a restricted contact end which preferably is provided with a centrally disposed small in let opening therein. In Figs. 4 and '5, I have illustrated a modified form of nipple 36, the outer end of which is provided with a hollow elbow 37 extending therein, at an angle of substantially 60 degrees to the longitudinal axis thereof. The projecting end of this nipple provides a contact face 38 and an inlet opening of small diameter is provide therein. This modified type of nipple is designed especially for being positioned in inaccessible places requiring lubrication, and takes the place of an additional coupling, or angle nipple, such as are now used in this connection.' The peripheral circular edge. at the restricted end of the nipple is small enough to fit within the spherical recess in the contact face of the connector and form a leak proof contact therebetween when so positioned. It will be observed that the spherical recess will allow the pistol to be held at various angles with the nipple, and retain the leak proof contact with the peripheral edge thereof, which contact is maintained until the spherical recess in theconnector is moved to such an angle with the circular peripheral edge of the nipple that a portion of the edge of the nipple is removed from the spherical recess. Thus it will be seen, that an exact positlon is not necessary, allowing a quick contact to be made, and also permitting the gun to be held at an angle to the nipple,

which is very advantageous when the nipple is hard to reach.

It will be noted that there is in area between the contacting portions of the inlet face of the nipple and the outlet face of the gun nozzle which is sufficiently small so that the product of the area so formed multiplied by the pressure of the lubricant acting thereon, per unit of area, is less than'the amount of contact maintaining pressure exerted by the pressure of the gun nozzle against the nipple. Such construction prevents unseat-ing of the nozzle contact face by the pressure of the lubricant contained in the space between the faces when in operation, thereby preventing loss of lubricant and loss of pressure of supplied lubricant.

The spring 29 normally retains the reciprocable nozzle in extended position, and in this position the plunger 25 lies within the flared guide at the end of the nozzle, but is spaced therefrom sufliciently to allow the open end of the nozzle to be in open communication with the interior of the container. To operate the pistol, the user grasps the stationary handle 31 in one hand, and places the contact face of the connector against the peripheral edge at the end of the nipple forming an osculatory contact therebetween. The finder 23 will direct the peripheral edge of the nipple into contact with the spherical recess adjacent thereto,

and a slight forward pressure against the handle willprovide a leak proof contact between the spherical recessed face of the connector and the nipple. When such osculatory contact is made the user presses against the handle, causing the nozzle to move into the container, while the container and plunger move toward the nipple. The plunger will thus enter the open end of the nozzle, and in so doing close the nozzle, and trap lubricant therein.

As the nozzle moves into the container, the plunger compresses the lubricant trapped therein, until the spring tension against the valve 18 is overcome, whereupon the compressed lubricant passes through the connector and into the nipple. When suflicient lubricant has been ejected, or when the supply is exhausted, the pressure against the handle is released, whereupon the valve will close and the spring 29 will press the nozzle back to extended position. The plunger when thus moving out of the nozzle creates a vacuum therein, so that when it is removed therefrom and open communication is established between the nozzle and the container,

a new charge of lubricant will be drawn into with the exception of when the nozzle is held too. directly upward. In this event in the embodiment illustrated, it is necessary to hold the nozzle downward to refill the same; This arrangement keeps the fluid over the open end'of the nozzle and prevents airfrom being drawn therein when filling.

-When it is necessary to replenish the supply of lubricant within the container, the bearing 14 carrying the nozzle is unscrewed, and the lubricant is. injected into the container through the hollow boss 13.

In Figure 7 I haveillustrated a pistol in which the container is the only handle means provided. The container in this instance is provided with a transverse recess into which the ends of the users fingers will fit when the container is grasped by his hand. This pistol is operated in the same manner as that previously described.

The pressure lubricating device herein described has been designated as a pistol because of the fact that it can be held in one hand while making the contact with and injecting the lubricant into the nipple. It will be noted also that the container for the pistol of my invention as shown can be made with only a single opening, same opening having a filling, nozzle holding and plunger receiving functions.

Thus it will be seen that I have constructed a pistol which will maintain a direct oscu-' latory metal to metal contact with a nipple,

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while held in one hand by the user, and which when so held can be operated to inject lubricant under-pressure into the nipple.

In the simple construction shown, only one check valve is required and that is located where it is easily accessible for cleaning and repair. When handle 31 is used, the force required to slide the tube 15 over the plunger, is not imposed on the walls of the container. In using the structure of Figure 7, if the force required is at all large, as when resistance to flow is encountered, the users hand will grip the container more closely, and the users thumb will naturally slip across to a position substantially over the plunger 95.

Various changes in detail can be made without departing from the spirit of my invention and scope of the appended claims.

What I claim is 1. A lubricating pistol comprising a lubricantcontainer, a valve controlled outlet nozzle telescopically secured to and in open communication with said container, said noz zle including means for forming a sealed connection with a lubricant receiving nipple, and means to close the inner end of said nozzle and eject the lubricant trapped therein when said nozzle and container are tele. scoped. Y

2. A high pressure lubricant compressor of the class described comprising a lubricant container, an outlet nozzle telescopically secured to and 1n communication wlth sa1d container, an outlet valve for the nozzle,

means for establishing a sealed connectioning means when said nozzle is applied to a part to be lubricated.

4. A lubricating pistol comprising a container, a nozzlereciprocably secured to and in communication with said container, an outlet valve for said nozzle, a plunger positioned to telescope into said nozzle, a handle for said pistol connected direct to said plunger,- and a return spring for extending said nozzle.

5. A lubricating pistol comprising a container having a non-circular opening in one end thereof, an outlet nozzle-in communication with and reciprocably secured to one end of said container, and a plunger extending into said container and adapted to enter and eject lubricant from said nozzle, said plunger having a non-circular shank portion extending through the non-circular opening in said container and having projecting portions extending radially therefrom adjacent the end Wall to prevent longitudinal displacement.

6. A lubricant dispensing pistol comprising a container, a nozzle telescopically mounted in one wall of said container, and a plunger in said container for entering said nozzle, said plunger extending through to the opposite container wall.

7. A lubricant dispensing device comprising a' container, a nozzle telescopically mounted in one wall of said container, and a plunger in said container for entering said nozzle, said plunger extending through to the opposite container wall, said nozzle having a flaring rear end to guide it over the end of said plunger.

8. Apparatus for dispensing lubricant at high pressure comprising a container, a discharge nozzle' therefor relatively reciprocable therewith and secured thereto and having communication with said container, a

ing a cylinder, coupling means for forming.

a lubricant-tight connection with a part to be lubricated, a plunger for expellingthe contents of said cylinder, and a container for refilling said cylinder, said container being carried by said plunger and recipr0cat ing therewith.

1 1. A device for dispensing lubricant at high pressure comprising a container, a cylinder reciprocably supported by andin communication with said container, and means for expelling liquid from said cylinder andfor preventing the pressure developed in said cylinder from vbeing communicated to said container.

12. A lubricating pistol comprising a lubricant container, an outlet nozzle telescopically secured and in open communication with said container, means to close the inner end of said nozzle and eject the lubricant trapped therein when said nozzle and container are telescoped, a terminal threaded to the discharge end of said nozzle, an outwardly opening check valve controlling said nozzle and a spring for said valve, said'terminal forming an abutment for said spring to hold both spring and valve in place.

13. A lubricant compressor comprising a barrel, a discharge sleeve telescopically mounted in one end of said barrel, a plunger coaxial with said sleeve, a rigid abutment on said barrel for the rear end of said plunger, and a coil spring encircling said plunger and abutting said sleeve to hold the plunger and sleeve apart.

14. A lubricant compressor comprising a barrel, a discharge sleeve telescopically mounted in one end of said barrel, a plunger coaxial with said sleeve, a rigid abutment on said barrel for the rear end of said plunger, and a coil spring encircling said plunger and abutting said sleeve to hold the plunger and sleeve apart, said plunger fitting said sleeve to trap and expel the contents thereof under high pressure when said sleeve is telescoped over said plunger.

15. A high pressure lubricating pistol of the class described comprising portable lubricant containing means, a sleeve reciprocably'mounted in one end of said means, a spring operatively interposed between said sleeve and said containing means and serving normally to maintain said sleeve in extended position, a check valve adjacent the outer end of said sleeve, said sleeve terminating in a part adapted to form a contact seal with a lubricant receiving nipple, a solid plunger fixedly mounted in said containing means, said plunger serving to eject lubricant from said sleeve at high pressure and controlling the admission of lubricant to said sleeve, and a handle part at the other end of said containing means.

16. A lubricant compressor comprising in combination a portable container, a sleeve slidably mounted in one Wall thereof, resilient means for normally maintaining said sleeve in extended position, a plunger for trapping lubricant in said sleeve and expelling the lubricant therefro n at high p1 essure, said sleeve having a part adjacent its inner end for guiding said plunger, valve mears at. the outer end of said sleeve, and means carried by said sleeve for effecting a lubricant tight seal with a part to be lubricated.

In witness whereof, I have hereunto signed my name this 18th day of November, 1922. OSCAR ZERK.

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