US1063274A - Force-feed lubricator. - Google Patents

Description

J. F. MOGANNA.

FORGE FEED LUBRIGATOR.

APPLICATION FILED APB..20, 1912.

1,063,274, Patented June 3, 1913.

2 SHEETBSHEET 1.

J. F. MOCANNA..

FORGE FEED LUBRIGATOR.

APPLIUATION IILED Ammo, 191g.

Patented June 3, 1913.

2 SHEETS-SHEET 2.

70 JZZOWZW' TED JOHN F. McCANfNA, ,OF CHICAGO,

ILLINOIS, ASSIGNOB TO IMPERIAL BRASS MANU- FACTUBING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

mnon 'rnnn rmamca'ron.

Specification of Letters Patent.

Application filed April 20, 193.3. .Serial No. 92,092.

Z 0 all whom it may concern Be it known that 1, JOHN MoCANnA, a citizen of the United States, and a resident oat Ghicago, in the county of-Qook and State 05. Illinois, have invented certain new and usefiul Improvements in Force-Feed Lubricatons, o5 which follow ng is a lull, clear, and exact specification.

invention is concerned with force feed lnhricetors, and more-especially with a novel toleeder-test device.

To illustrate my invent-ion, annex hereto two sheets of drawings, in which the same refenence characters are used to designate identical parts in all the figures, of which Figure 1 is a central vertical section on the line A-A of Fig. 2; Fig. 2 is a vertical section ina plane at rightangles to the'section of Fig. 1 and on the line B-B of said figure; Fig. 3 is a top plan View; Fig.4 'is aldetail similar to the upper portion of Fig. 2, but showing the bleeder-test valve turned to inoperative position; Fig. 5 is a horizontal section through said valve on the line C-C of Fig. 1; Fig. 6 is a section through one of the ball and socket connections of the operating connections; and Fig. 7 is a side elevation of the .bleeder-test valve in its inoperative position. D

In carrying out my invention in its preferned form, I employ a bottom casting-10 which is generally 'U-shaped in cross section, as seen in Fig. 2, and has the externally thneadcd, reduced lower .end 11 upon which the these disk 12 may be screwed in the manner clearly shown. I may provide a vertical recess 13 in this portion 11 and mount in said recess the hollow detent 14, the toothed upper end of which coiiperates with the teeth of the ratchet disk 15, while the hollow lower portion receives the helicallyec-oiled expanding-spring 16 interposed between said detont' and the bottom of the recess 13 to hold the detent yieldingly in engagement with the teeth of the ratchet Wheel. I preferably form on the upper portion of this base casting 10 the annular flange 17 within which isformed an annular seat for the lower edge of the glass cylinder 18 which pneferably constitutes the body of the reservoir. The cover =19 is preferably a casting provided with an annular :flange 20, within which on the under side of the cover is formed the annular seat for the top of the cylinder 18. To hold the bottom, cover and body together, I preferably screw the con necting .rods 21 into recesses formed in the top of the bottom upper ends of these rods pass through opentures in -the cover 19, and nuts 22 screwed on said threaded upper ends serve to bind the parts together. I

The cover 19 preferably has formed on the under side thereof the valve cylinder 23 and the barrel cylinder 24, the lower ends of those cylix lers being connected by the horizontal passage 25. An extension 26 of the valve cylinder is screwed on the reduced, threaded lower end thereoat, and this extension 26 is provided with a valve seat for the check valve 27, which preferably takes the form of a steel ball adapted to close the passage through said the return of the oil mounted to reciprocate in the barrel 24 .descends. In the valve cylinder 23, I preferably form two valve seats of different sizes and adapted to cooperate with the two check valves 29 and 30, of corresponding sizes, and which also are preferably composed of steel balls, The upper portion of the barrel 24 extending above the body of the cover 19 is externally threaded to receive the custernary packing gland 3'1 cooperating there- With, and through which the piston is -reciprocated. VV-ith the construction herein shown, it will he obvious that as the piston 28 :is raised, the valves 29 and 30 are closed, while the valve 27 is raised to permit the oil from the reservoir to enter the barrel 24 through the passage 25. lVhen the piston descends, the check valve 27 is closed, while the valves 29 and 30 are raised by the up-v when the piston 28 Patented June 3, 1913. I

piece 10. The threaded extension 26 against I ward Jmovement ofthe oil forced out of the tlhev descent of the piston. The valve cylinder 23 is connected with the discharge pipe 32, leading to the part to be lubricated by a connection '33, which preferably has the externally threaded upper end with which the packing gland 34 cooperates to make-a liquid-tight joint between the pipe 32 and the top of the connection 33, the lower end of which is threaded into the upper end of the valve cylinder 23.

To flgIllSl'l an indication of the {ate at which t e um is operati I emp 0y t e novel ble dder lest mech z iism, which is constructed as follows: The connection 33 preferably has the valve casing 85, which has a flaring aperture adapted to receive the barrel by truncated conical portion of the valve body 36, which is held securely in place by the helically coiled expanding sprlng 37 surrounding the reduced outer end 38 of the valve body and interposed between the washer 39 held in lace by the pin 40 and the washer 41 held by the spring against the valve body. This valve body has passed through the other end, at right angles to the axis thereof, the hollow handle 42, one end of which is closed, while the other end is turned at right angles, as seen at 43. The lower portion of the connection 33 has the central passage 44 in line with the passage in the discharge pipe 32 and adapted to be connected with said pipe by the transverse aperture or passage 45 in the valve body 36, when the handle 42 is turned to the vertical position shown in Figs. 4 and 7. The connection 33 has also the parallel passage 46, which is adapted to be connected with the L-shaped passage 47 in the valve body when the handle 42 is turned to the horizontal position shown in Figs. 1, 2 and 3. When the parts are in this position, the oil pumped from the reservoir can not pass to the discharge pipe 32, and must be discharged, drop by drop, from the end 43 of the hollow handle 42, which end, when the handle is horizontal, extends over the open top of the strainer 48 located in the cover 19 and serving its customary purpose. The oil dripping from this bleeder test returns to the reservoir, and when the rate of feed has been ascertained, .the valve is turned back to its normal position with the handle vertical, as shown in Figs. 4 and 7, when the oil is forced through the passage 45 to the discharge pipe 32. It Wlll be apparent that this novel test-valve prevents the possibility of the valve being imperfectly closed after a test, as it must be turned from one extreme position to the other before and after making a test. The piston 28 is provided at its upper end with the fixed abutment 49, and a cross head 50 attached to the vertically reciprocating rod 51 has an aperture through which the threaded upper end of the piston 28 passes freely, the amount of lost motion and the consequent rate of discharge of the pump being controlled by the position in which the movable abutment or nut 52 is adjusted, said movable abutment being secured in any desired position of adjustmentby the cotiperating lock nut 53. The rod 51 through an aperture in the reciprocates cover 19, and its lower end is screwed into the yoke 54, which embraces an eccentric 55 formed on a sleeve 56 connecting said eccentric and the ratchet disk 15. A horizontally located rock-shaft 57 supports the combined eccentric andratchet disk.

To produce a construction in which the various parts associated with the shaft 57 can be readily assembled, I construct the suitable stufiing box nut threaded on the inner end of the stufling shaft and its connections as follows; In one side of the bottom casting 10 is a bearing recess 58 for one end of the shaft 57, and opposite the recess 58 is an aperture 59 throu h which is screwed the reduced, threa ed inner end of the bearing sleeve 60, the outer end of which is provided with a 61. A nut 62 box nut 61 serves to secure the latter rigidly in place. The ratchet arm 63 preferably has the split end shown in Fig. 2, through one arm of which the screw 64 is threaded so that the arm can be securely clamped onthe shaft 57 after it has been shoved into place through the sleeves 56 and 60. A pin 65 projecting from the upper end of the arm 63 serves to hold the spring-pressed pawl 66 in position to engage the teeth of the ratchet disk 15. On the outer end of the rock shaft 57 I provide the T-shaped connection 67, and the operating rod 68 has its threaded lower end screwed through the internally threaded body portion of the sleeve 67 and against the shaft 57 to secure the operating rod 68 in place on the end of the shaft 57. As these pumps are usually operated by reciprocating connections from the engine or other apparatus which they lubricate, it is desirable to have some form of connections that will operate perfectly even if the lubricator is not exactly adjusted with reference to the reciprocating member, and for this purpose I employ the connect-ions best shown in Figs. 1 and 6, where it will be seen that the upper end of the operating rod 68 carries a sleeve 69 having a semispherical ball member 7 O projecting from one side thereof. Coiiperating with this ball member is a socket member 7 1 which has a semispherical recess or socket to receive the ball, and at the bottom of the socket is an' aperture 72 through which is passed the headed pin 73, the threaded end of which is screwed through the ball member 7 02nd against the operating rod 68 to secure the sleeve 69 rigidly in position on the 'rod. To hold the ball and socket members yieldingly, yet firmly, together, I interpose the helically and spirally coiled expanding spring 74 between the head of the pin 73 and the adjacent face of the socket member 71. This socket member 71 has the threaded recess 75, into which is screwed the connecting rod 76, the other end of which is screwed into a corresponding socket member 77 coiiperating with a corresponding ball member 78, having a corresponding spring 79 and corresponding pin 80. In this case the socket. member 77 has .the pin 80 threaded entirely through it and adapted to be screwed into some reciprocating member by which the pump is to be driven. With the construction thus described, it will be evident that this last mentioned reciprocating member might be considerably out of alinement with the pump and still the ball and socket connections at the two ends of the connecting rod '76 would permit of the apparatus operating perfectly.

While I have herein shown and described my novel link and lever connections for ac tuating the rock shaft, I do not herein claim the same, as they are described and claimed in my divisional application No. 704,729 filed June 20, 1912.

While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry out its purposes, it will be understood that it is capable of modifications, and that I do not desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of the United States, is:

1. In a force-feed lubricator, the combination with a reservoir, of a pump associated therewith, a pipe leading from said pump, a valve casing in said pipe, a valve body mounted to turn in the casing, a ban dle secured to the valve body and having a passage therein leading into the valve body, a discharge pipe leading from said valve to the element to be lubricated, said valve body having two passages therein, one passage being adapted to connect the pump with the discharge pipe in one position of the valve body and the other passage being adapted to connect the pump with the hollow handle in the other position of the valve body, and means to operate the pump.

2. In a force-feed lubricator, the combi nation with a reservoir, of a pump associated therewith, a pipe leading from said pump, a valve casing in said pipe, a valve body mounted to turn in the casing, a handle secured to the valve body and having a passage therein leading into the valve body,

a discharge pipe leading from said valve to the element to be lubricated, said valve body having two passages therein, one passage being adapted ,to connect the pump with the discharge pipe in one position of the valve body and the other passage being adapted to connect the pump with the hollow handle in the other position of the valve, means to operate the pump, and a strainer in the top of the reservoir into which the oil is dis charged by the valve handle when the latter is turned to its testing position, said strainer being removable by lifting it vertically upward when the handle is turned up.

In witness whereof, I have hereunto set my hand and afiixed my seal, this tenth day of April, A. D. 1912.

JOHN F. McCANNA.

VVit-nesses JOHN HOWAR MoELRoY, MILDRED ELsNER.

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