US833149A - Lubricator. - Google Patents

Description

PATENTED OCT. 16

G. H. ANNAN. LUBRIGATOR. APPLIOATION FILED NOV. 1, 190a.

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PATEN TED OCT. 16, 1906.

G. H. ANNAN'. LUBRIGATOR. APPLICATION PILE D NOV. 1, 1905.

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UNITED STATES PATENT OFFICE.

GEORGE H. ANNAN, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO J OLT LUBRIOATOR COMPANY, OF PROVIDENCE, RHODE ISLAND, A CORPO- RATION OF RHODE ISLAND.

LUBRIGATOR.

No. e3e,14.9.

Patented Oct. 16, 1906.

Application filed November 1 1905. Serial No. 285,411-

To all whom it may concern.-

Be it known that I, GEORGE H. ANNAN, of Providence, county of Providence, and State of Rhode Island, have invented certain new and useful Improvements in Lubricators; and I do hereby declare the following specification, taken in connection with the accompanying drawings, forming a part of the same, to be a full, clear, and exact description thereof.

The invention relates to automatically-operating lubricators for use on cars and other structures of the type in which a normally closed valve for controlling the feed of the lubricant to a bearing is adapted to be automatically and intermittently opened by a jolt of the 'car or a sudden vibration of the structure.

An automatic lubricator of this type is shown in the Letters Patent heretofore granted to me, No. 773,181, dated October 25, 1904, and the present invention relates to improvements in the structure shown and described therein. In the structure of said prior patent the valve-casing was separate from the oil cup or receptacle and required to be screwed into the oil-cup or otherwise secured thereto. Onthis account the valvecasing, including the tubular extension for the actuating-weight, required to be machined to the desired form, and screw-threads had to be out upon the valve-casing and in the oil-cup, all of which involved considerable labor and expense.

One feature of the present invention consists in casting or otherwise forming the oilcup with integral hollow projections, one to serve as a casing for the valve and its actuating-spring and the other as a receptacle and guide for the weight, whereby the construction is materially simplified and the cost correspondingly reduced.

In the structure of the prior patent the only way in which the adjusting-screw, by which the tension of the spring is adjusted, could be turned was by means of a screwdriver applied to the lower end of the screw,

and this necessitated either the removal of the valve-casing from the oil-cup or the removal of the oil-cup itself from its receptacle in order to make the adjustment. The adjusting-screw also requires to be locked in its adjusted position. In the prior construction this locking was effected by means of a key or cotter-pin taking against a flattened side of the adjusting-screw. This key was inconvenient to manipulate, and the construction involved the turning of the screw one complete turn to make an adjustment, which was often more than was desirable.

Further features of the invention'consi st in providing means whereby the adjustingscrew may be adjusted from above, and thus without necessitating the removal of the oilcup for the purpose and in providing means for locking the screw in any adjusted position when thus adjusted from above.

The invention further consists in certain features of construction hereinafter de scribed and claimed.

Referring to the drawings, Figure 1 is a plan view of the lubricator. Fig. 2 is a side elevation thereof. Fig. 3 is a vertical transverse section of the same. Figs. 4 to 9, inclusive, are detailed views of the parts. Fig. 10 is a sectional view of a bearing, showing the lubricator in place therein; and Fig. 1 1 is a corresponding sectional view at right angles to Fig. 10.

12 is the oil cup or receptacle, which has formed integral therewith the upward hollow projection 13 and the downward hollow proj ection 14. Located within the hollow projection l4 and arranged to seat against the base of the projection 13 is, a valve 15, said valve being provided with an upward projection 16 and also with a downward projection 17, each of which projections is flatted, as shown in the drawings. The hollow projection 14 is interiorly screw-threaded to receive. the adjusting-screw 18. Said adjustingscrew is provided with a slot 19, adapted to receive the projection 17 of the valve, and is also provided with a hole or aperture 20 for the passage of the oil. 'A spiral spring 21 interposed between the valve and the adj usting-screw, serves to keep the valve normally to its seatv Within the hollow projection 13 the weight 22 is loosely placed, said weight being pro vided with a slot 23, adapted to receive the projection 16 of the valve, the construction being such that said weightnormally rests upon said projection 16, as shown in Fig. 3.

Said weight is also provided with a lug or projection24, adapted to engage a slot 25, formed in the hollow projection 18. Any desired number of slots 25 may be formed in the said projection, three of such slots being shown in the drawings.

In the drawings the lubricator is shown as employed in connection with the axlebear ing of a railway-motor, which bearings have heretofore been commonly lubricated by grease placed in a receptacle cast in the motor-frame. The oil-cup 12 is especially designed to be placed in this receptacle in the motor-frame, and in Figs. 10 and 11 the oilcup is shown as placed in the receptacle 26, which is a part of the motor-frame 27, the oilcup resting on the bottom of the receptacle 26. At the bottom of the receptacle 26 there is an elongated slot 28 and in the bearingshell 29 there is a corresponding elongated slot 30. The oil-cup is provided with one or more downward projections 31, which, as

shown, extend through the slot 28 and into the slot 30, said projections serving to steady the oil-cup in position. If desired, the oil-cup may also be provided with steadying projections 32 at or near the upper end thereof, as shown in the drawings.

With the construction above described the operation is as follows: A suitable quantity of oil is placed in the oil-cup 12, the valve 15 being held normally closed by its spring. Any sudden jolt or jar of the car, however, will serve to throw the weight 22 upward, and the weight in falling will strike the projection 16 of the valve, and thus force the valve downward temporarily, so as to admit a quantity of oil to the bearing, the spring 21 serving to again close the valve and prevent the flow of an undue amount of oil. With the repeated jars or jolts to which the structure will be subjected in use the valve will be repeatedly opened, admitting successive but comparatively small quantities of oil to the bearing.

The tension of the spring 21 may be adjusted by turning the adjusting-screw 20, and this turning of the adjusting-screw is effected by removing the weight 22 and applying a suitable wrench or key to the projection 16, and thereby turning the valve. By reason of the engagement of the projection 17 of the valve with the slot 19 of the adjusting-screw the turning of the valve will effect a corresponding turning of the adjusting-screw. While the valve and adjusting-screw may thus be turned together, the connection between the valve and adjusting-screw is such as not to interfere with the lengthwise movement of the screw or the valve with relation to each other.

When the tension of the spring has been properly adjusted, the weight is replaced in position, with the lug 24 entering one of the slots 25, and by reason of the connection between the weight and the projection 16 the adjusting-screw will thereby be held in its adjusted position.

It will be seen that with the construction above described the tension of the spring may be adjusted from above and without removing the oil-cup from its position in the receptacle'26. I What I claim as my invention, and desire to secure by Letters Patent, is

1. The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, and a connection between saidvalve and adjusting-screw whereby a turning of the valve will effect a turning of said screw, substantially as described.

2. The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, and a sliding connection between said valve and adjusting-screw whereby a turning of the valve will effect a turning of the screw, but without interfering with the relative lengthwise movement of the valve or screw, substantially as described.

3. The combination of a receptacle, a valve,

a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, said valve being provided with a projection which engages said adjusting screw to turn the same, and with means for turning said valve, whereby a turning of the valve will serve to turn said adjusting-screw, substantially as described.

4. The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, said valve being provided with a projection which engages a slot in said adjusting-screw to turn the same, the valve and screw being free to move lengthwise relatively to each other, substantially as described.

5. The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring and a connection between said valve and adjusting-screw for turning said screw, and means for locking said screw in its adjusted position, substantially as described.

6. The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, a connection between said valve and adjusting-screw for turning said screw, and means adapted to engage a projection from said valve to hold said valve and screw from turning, substantially as described.

7. The combination of an oil cup or receptacle, a valve for controlling the flow of oil therefrom, a spring acting on said valve, an adjusting-screw for adjusting the tension of said spring, a connection between said valve weight arranged to act on said valve and slidably engaging a projection therefrom, and means to hold said weight from turning, substantially as described.

8. The combination of an oil cup or recep-' tacle, a valve for controlling the flow of oil therefrom, a spring acting on said valve, an adjusting-screw for adjusting the tension of said spring, a connection between said valve and adjustmg-screw for turning said screw, a weight arranged to act on said valve and slidably engaging a projection therefrom, and a casing for said weight, said casing being provided with one or. more slots and said weight being provided with a lug adapted to enter one or the other of the slots in said casing to prevent said weight from turning, substantially as described.

QQ'The combination of a receptacle, a valve, a spring acting on said valve, an adjustingscrew for adjusting the tension of said spring, a Weight acting on said valve in opposition to said spring, a sliding connection between said valve and screw, a second sliding connection between said weight and valve, and means for preventing said weight from turning, substantially as described.

. GEORGE H. ANNAN.

Witnesses:

W. H. THURsTON, C. G. BRADLEY.

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