US771882A - Lubricator. - Google Patents

Description

PATBNTED 0G13. 11, 1904. J. W.M0CLURE.

LUBRIGATOR.

APPLICATION FILED AUG. l1. 1903.

2 SHEETS-SHEET l.

N0 MODEL.

No. 771,882. l PATENTED 00T. 1l, 1904.

J. W. MGGLURE.

` LUBRIGATOR.

APPLICATION FILED AUG. ll. 1903. v NO MODEL. l v 2 SHEETS-SHEET 2.

UNTTED STATES Patented October 11, 1904.

JOHN W. MOOLURE, OF DETROIT, MICHIGAN.v

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 771,882, dated October 11V, 1904.

Application led August 11, 1903. Serial No. 169,079. (No model.)

To @ZZ whom it may concern,.-

Be it known that I,JoHN W. MCOLURE, a citi- Zen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Lubricators, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to new and useful improvements in lubricators; and it consists in the peculiar construction of a drive mechanism for the piston of the pump which forces the lubricant to the desired point.

The invention further consists in the construction, arrangement, and combination of the various parts, as more fullyl hereinafter described, and pointed out in the claims.

In the drawings, Figure l is a vertical central section through a lubricator embodying my invention, showing the piston-rod and the blocks thereon in elevation. Fig. 2 is a side elevation of the upper part thereof.

A is the oil-cup of the lubricator, supported in any suitable manner. B is a cylinder therein, preferably secured to the top and depending to near the lower end, and in this cylinder operates a piston-rod O, which projects through the upper part of the oil-receptacle A, as shown.

D is the discharge-pipe from the cylinder B, which may lead to any suitable point to be lubricated.

The cylinder is of course provided with a suitable inductionport and with the usual valves employed in pumps.

On the top of the oil-receptacleA is a standard or bracketE, in the upper portion of which is a horizontal tubular bearing F, in which is journaled a shaft G in the shape of a tube. Passing through this tubular shaft Gr is a spindle H, the ends of which project beyond the bearing F and are screw-threaded, as shown at I. On the screw-threaded portions of the spindle H at opposite ends are secured the ratchet-wheels J and K, these wheels being alike and being interchangeable. Secured to the tubular shaft G is the actuating-arm L, which is rocked by being connected to any desired movable part of a machine. This arm L has a small tubular offset or boss M on its outer face, in which is the spring-ratchet N, adapted to engage with the notches in the periphery of the ratchet-wheel J and to move that wheel when the arm L moves in one direction and to slide over the teeth of the wheel in the reverse direction. The wheel K is likewise a ratchet-wheel and at any suitable point is provided with a holding-pawl O, which in this case I have shown as pivoted to the post or bracket E at the lower side of the wheel K.

On the face of the wheel K is a suitable screw-threaded aperture in which engages the screw-threaded stem a of a stud which projects out from the face of the wheel and between the blocks P and Q, connected to the piston-rod O. The block Q, I preferably construct as shown, havinga tubular portion c screwed onto the upper end of the piston O until it is moved to the desired point thereon. The block P has two lateral portions l apertured in line with the piston, which passes through the apertures therein, and between these eXtensions has an adjusting-nut e, by means of which the block P may be moved up and down, so as to separate it more or less from the block Q. I also provide a suitable locking device for the block P, so that it will not accidentally change its adjusted position. This I have shown as a split block L, the upper portion of which is adapted to be screwed down by the screw c' to bind against the screw-threaded portion of the piston-rod, and thus act as a lock-nut or locking device for the block P. In this illustration of my invention both portions of the block /z have a screw-threaded engagement with the piston-rod. Any suitable means may be employed for guiding the blocks P and Q, so as to prevent their rotation. In

this construction I have shown the portion of these blocks which is adjacent to the ratchetwheel K as provided with a flat face in such close proximity to the ratchet-wheel as to prevent their rotation.

The bearings being thus constructed their operation is as follows: The arm L,being connected to the moving part of a machine, is reciprocated, which reciprocation through the ratchet N and the ratchet-wheel J will impart a rotary movement to the wheel K, the stud b on which will alternately strike the blocks P IOO and Q and reciprocate the piston-rod C in the pump, and thereby pump the lubricant from the oil-receptacle A through the dischargepipe D to the desired point to be lubricated. It is evident that the amount of travel of the piston-rod C will be determined by the distance that the blocks P and Q are separated, the nearer they are together the farther the piston will be moved, so that by adjusting the blocks P and Q nearer together or farther apart the desired throw to the piston can be obtained with the constant amount of speed or travel for the arm L. This adjustment is accomplished by loosening' the check-nut 7L, so as to permit of the adjustment of the block P, and then turning theV nut e until the desired point of adjustment is reached, when the block P can again be locked in position by turning' down the nut /L and screw z'.

I find in practice that the ratchet-wheel J wears out much more quickly than the ratchetwheel K, and in order that repairs need not be sent for so often for this device I make the two wheels J and K exactly alike and provide both of them with screw-threaded apertures to receive the screw-threaded stem of the stud so that by simply removing the wheels and the stud the wheels may be substituted one for the other, and if the wheel J wears out the wheel K can be put in its place, thus doubling the life of these two wheels.

It is obvious from an examination of the drawings in this case that all the parts are very plain and simple and can be made by machinework quickly and inexpensively and that they will be assembled with little difficulty. I also provide a wide bearing for the tubular shaft Gr and the device is made much more compact by having the shaft H pass therethrough.

By reason of the construction of adjusting device for the block P the stroke of the piston can be quickly altered to change the feed of the pump. To effect this, the screw 7,' is loosened and the nut /t is turned to release it from the block P, when the nut e may be turned to adjust the block up or down, and then the nut 71. may be jammed against the block P and locked by means of the screw What I claim as my invention isl. In a lubricator, an actuating device for the pump comprising a bracket or standard having a tubular bearing therein, a tubular shaft journaled in said bearing, a rock-arm connected thereto and carrying' a ratchet, the spindle passing through said tubular bearing, aratchet-wheel on one end of said spindle actuated by the ratchet on the rock-arm, a ratchet-wheel on the other end of the spindle having an actuating connection with the piston and a holding-pawl for said last-named ratchet-wheel.

2. In a drive device for a lubricator, the combination of a bearing, a sleeve in said bearing, a rocking device connected to said sleeve, a spindle passing through the sleeve, and like ratchet-wheels secured to opposite ends of said spindle, said wheels being interchangeable.

3. In a drive device' for the piston of a lubricator, the combination of a rotary wheel, a stud or roller thereon, the piston-rod, separated blocks on said rod between which the stud operates, and a nut engaging a screwthreaded portion of the rod and one of the blocks and forming means for adjusting the distance between said blocks whereby the travel of the piston may be adjusted.

4. In a drive device for the piston of a lubricator the combination of a rotary wheel, a stud or roller thereon, the piston-rod, separated blocks on said rod, between which the stud operates, and means for adjusting one of said blocks, comprising apertured furcations on the block sleeved on the rod, a nut having athreadcd engagement on said rod, between said furcations, and a lock nut above said block.

5. In a drive device for the piston of a lubricator, the combination of a rotary wheel, a stud or roller thereon, the piston-rod, separated blocks on said rod, between which the stud operates, and means for adjusting one of said blocks, comprising apertured furcations on the block sleeved on said rod, a nut having a threaded engagement on said rod, between said furcations and a lock-nut partially severed transversely of the rod, and a screw for clamping thc severed portions together to bind the nut on said rod.

In testimony whereof I afix my signature in presence of two witnesses.

JOHN WV. MCCLURE.

YVitnesses:

JAs. P. BARRY, Grno. W. GRAVES.

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