US895557A - Lubricator. - Google Patents

Description

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lIlllllllllll LUBRICATOR APPLICATION FILED JULY 25,1907.

m A Il v Y j r Y i QL I l l K i 5,. v .E i l: I Y l No. 895,557. PATENTBD AUG. 11, 1908. C. C( HALLER.

LUBRIGATOR.

APPLICATION FILED JULYz, 1907.

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PATENTED AUG. ll, 1908.

C. C. HALLER. LUBRICATOR.

APPLICATION FILED JULY 25, 1907.

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:form of yoke for operating the pump lUNITED STATES PATENT OFFIOE.

CHARLES C. HALLER, OF CHICAGO, ILLINOIS, ASSIGNOR TO MCCORD da COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.

LUBRICATOR.

Specification of Letters Patent.

Patented Aug. 11, 1908.

Application filed July 25, 1907. `Serial No. 385,511.

To all whom it may concern:

Be it known that I, CHARLES C. HALLER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Lubricators, of which the following is a specification.

My invention relates to lubricators more particularly to the positive feed type and the object of the invention is to provide simply constructed and positive acting mechanism of this character.

My present invention resides chiefly in the valve mechanism and means for operating the same, as will be hereinafter more specifically pointed out.

I obtain my object by the mechanism illusltrated in the accompanying drawings, 1n

which:

Figure 1 is an elevation giving a side view of the pumping mechanism and showing the oil container in vertical section. The section is taken on the line 1-1 Fig. 2. Figs. 2 and 3 are sectional elevations taken on the lines 2-2 and 3-3 respectively Fig. 1. Fig. 4 is a plan section taken on the line 4-4 Fig. 1. Fig. 5 is a plan section through the casing taken onthe line 5-5 Fig. 1. Figs. 6 and 7 are plan sections taken respectively on the lines 6-6 and 7-7 Fig. 3. Fig. 8 is a perspective view of a desirable form of tappet for rotating the controlling valve. Fig. 9 is a perspective view of a desirable form of arm adapted to coperate with the tappet shown in Fig- 8 to oscillate the controlling valve. Fig. 10 is a perspective view of a desirable piston.

Similar numerals refer to similar parts throughout the several views.

It will be understood that lubricators of this type are under ordinary circumstances intended to furnish a definite amount of oil at regular intervals to the bearings of various kinds of machinery; and the power which is required to operate the lubricator is usually obtained 'from some moving part of the machinery itself. In `the present case the power for driving the lubricator is derived from a shaft 15.

In my lubricator the oil may be supplied to the pumping mechanism by means of ducts or pipes leading from a distant source of supply but in the preferred form, which is here illustrated, the pumping mechanism is inclosed within a box 16 which is adapted to contain the supply of oil so that the pumping mechanism is partly or entirely submerged in lubricating oil. This arrangement has certain well recognized advantages, among them being the fact that the parts of the lubricator are themselves at all times thoroughly lubricated and that the total space required for the lubricator and lubricant is reduced to a minimum by reason of the fact that the spaces between the parts which would otherwise be wasted is occupied by the lubricant. In such arrangement, also, the device is more convenient and more readily portable.

I have selected to illustrate my invention a mechanism having three different pumping pistons but it will be understood that the number of pistons is immaterial.

p Referring to the particular design illustrated, the shaft 15 enters the casing preferably through a stufling box 17. Within the casing the worm 18 is fastened to shaft 15 in position to drive the gear 19 secured to the operating shaft 20. Said shaft 2O is journaled in any suitable type of bearing, for example the stuffing boX 21 mounted on the side of the casing as shown in Fig. 1. The advantage in employing-a worm gear for the operating shaft of the lubricator is thatthe motion is uniform, positive, selflocking and affords a convenient way for greatly reducing the number of revolutions of the operating shaft in comparison with the number of revolutions of the driving shaft. Other means for rotating the operating shaft however may be substituted if desire( The valve casing 25 has, for each one of the controlling valves 27 a passage 26 communicating with the source of oil supply inside of the oil container or box 16. passage 26 communicates with the cylindrical chamber within casing 25, which contains the valve 27. A duct or passage 28 leads from the chamber within the casing 25 to a duct 29 which communicates with the distant bearing to be oiled.

The casing 25 is stationary and may be secured in any suitable manner for example, the flange 30 bolted to the side of the box 16, as shown in Figs. 2 and 3. In the present design, the casing 25 is further supported by means of the side frames 31, 31, which have This - is, however, immaterial.

a bearing on shaft 20. One of said side frames also has a lug 32 bearing upon shaft 15. rIhe manner of supporting the casing 25 Each of the above mentioned valves 27 is bored longitudinally for a portion of its length and has an inlet port 33 and an outlet port 34, which are arranged in such manner that when the valve is in one position the ports 26 and 33 communicate with each other, and the port 34 is closed, and when the valve is in another position the ports 34 and 28 communicate With each other and port 33 is closed. The position of the valve 27 about its axis therefore controls the admission and discharge of lubricant.

Each valve contains a piston 35 which is adapted to reciprocate within the valve chamber. The sleeve 27 is rotatable about its own axis` within the casing 25, and in the present design the means for rotating said valve consists of the arm 36 rigidly fastened to valve 27. At its extremity said arm, which is shown in perspective in Fig. 9, is pivotally connected to the tappet 37 by means of the pin 3S thereon, as clearly illustrated in Figs. 3, 4, and 8. Each tappet is pivotally supported upon a stationary rod or pin 40 and is operated by a cam 41 secured to the operating shaft 20. Said tappets are bifurcated so as to engage cam 41 on opposite sides of shaft 20 and said tappets are so constructed that there is lost motion between them and their operating cams. The proportions of the parts are such that during the rotation of cam 41 the tappets 37 will be moved in one direction and then after an interval of quiet, be moved in the opposite direction. As a result of this construction the valve 27 has an intermittent oscillating vmotion and said valve is, for a certain period of time, in communication with the inlet port 26 and afterwards for a certain period of time in communication with the discharge port 28.

I will now describe the preferred means for operating the piston 35. l

Each piston is connected to the yokeshaped tappet 42 whichis operated by means of a cam 43. In the preferred construction, the cam doesv not make direct contact with said tappet 42 but contacts the extremity of a pin 44 which screws thereinto. This affords means for regulating the amount of movement of said ta pet. The adjustment of pin 44 is effected y means of a stem 45, which preferably forms an integral part of screw 44 and extends upward to a point near the top of the casing where it has a polygonal head 46 adapted to fit into a socket wrench or other means for rotating said stem.v By preference, a screw cap 47 is located in the casing 16 above stem 45 to admit a wrench for adjusting the pin 44. In the design illustrated, the parts are so arranged that cam 43 first raises plunger 35 in the valve 27 and then suddenly releases it, the plunger then being lowered by means of a compression spring 48 interposed between the top of tappet 42 and the stationary cross arm 49` Operation: When the shaft 15 is rotated it imparts rotation to shaft 20 through the agency of the worm 18 and gear 19. This causes the rotation of the cams 41 and 43. The cam 41 operating `upon the tappet 37 causes the valve 27 to oscillate back and forth about its axis to first bring the inlet ports 26 and 33 opposite to each other and subsequently the outlets or discharge ports 34 and 28 opposite to each other, thus controlling the ow of lubricant through the valve. VVhile'cam 41 is rotating cam 43 acts upon the yoke-shaped tappet 42 through the agency of adjusting pin 44 and causes the raising and lowering of the piston 35 in the valve 27. The part are so timed that the piston 25 will be rising during the period when the valve port 33 is in communication with the passage 26 and will be descending when the valve port 34 is in communication with the discharge pipe 28. In consequence the action is such that there will be an intermittent flow of oil from the container 16 through the valve 27 and out through the passage 23 and duct 29 to the bearing to be oiled. The amount of oil thus forwarded at each stroke of the piston will depend upon the position of pin 44 within the yoke 42.

Although I have described this mechanism as a lubricator it may of course be used to pump water or any other liquid.

What I claim as new and desire to secure by Iietters Patent, is:

1. In a lubricator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in saidcasing and having ports therein for communicating with the ports in said casing, a piston working in said valve, tappets for operating said valve and reciprocating said piston and a rotating member common to said tappets for operating them.

2. In a lubricator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in said casing and having ports therein for communicating with the ports in said casing, a piston working in said valve, a swinging tappet for operating said valve, a reciprocating tappet for reciprocatingk said piston and means common to both of said tappets for operating them.

3. In a lubricator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in said casing and having ports therein for communicating with the ports in said casing, a piston working in said valve, a swinging tappet for operating said valve, a reciprocating tappet for reciprocating said piston, cams for operating said tappets and a member carrying both of the cams for operating them.

4. In a lubricator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in said casing and having ports therein for communicating with the ports in said casing, a piston working in said valve, a swinging tappet for o erating said valve, a reciprocating tappet for reciprocating said piston, a rotating shaft and two cams fixed on said shaft, one for oplerating each of said tappets.

5. n a lubricator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in said casing and having ports therein for communicating with the ports in said casing, a piston working in said valve7 a swin ing member articulately connected direct y to said valve for oscillating it, a cam and means common to said lswinging member and to said piston for operating them.

6. In a lubrcator, the combination of a casing having admission and discharge ports, a cylindrical valve adapted to oscillate in said casing and having ports therein for communicating with the ports in said casing, a piston working in said valve7 a rotating shaft, and two cams on said shaft one for operating said valve and the other for operating said piston.

In witness whereof, I have hereunto subscribed my name in the presence of two witnesses.

CHARLES C. HALLER. Witnesses:

HOWARD M. COX, C. J. CHRISTOFFEL.

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