US1097921A - Candlestick-lubricator. - Google Patents

Description

E. L. PAUL. GANDLESTICK LUBRIGATOR.

APYLIGATION FILED HAIR. 22, 1910.

-MMW

Patented May 26, 1914.

rrnn STATES PATENT OFFICE.

EDWIN L. FAUL, OF NEWV YORK, N. Y., ASSIGNOR TO WILLIAM J. FAUL 00., OF NEW YORK, N. Y., A CORPORATION OLE NEiV YORK.

CANDLESTICK-LUBRICATOR.

Specification of Letters Patent.

Application filed March 22, 1910.

Patented May 26, 1914.

Serial No. 550,970.

To all whom it may concern Be it known that I, EDWIN L. FAUL, a citizen of the United States, and a resident of the city of New York, borough of Brook lyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Candlestick Lubricators, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawing, wherein- Figure 1 is a front elevation and Fig. 2 a cross-sectional view of a pulley with my improved candlestick lubricator set in position; Fig. 3 is a detail view, showing the flexible stem in elevation, and a sectional view of the perforated plunger mounted thereon.

My invention relates to lubricating devices and consists of the hereinafter more fully described construction of a candlestick lubricator, designed with the particular object in view, to enable candlestick lubricators of a desirable length to be used on small pulleys, and to permit convenient refilling of the tube when the candlestick is exhausted. This tube a is usually screw-threaded at its lower end, as shown at a, to enable its being screwed into, and securely held in, the hub b of the pulley. The bore 0 in the hub b of the pulley is recessed at cl, the rim of the tube a abutting against the shoulder (Z, to prevent the tube from coming in contact with the shaft 6 whereon the pulley is mounted. The upper end of the tube is also screw-threaded, as shown at (E, and the enlarged interior of the cap f is screw-threaded correspondingly, to enable the cap ,1 to be screwed thereon and held securely in connection therewith. The interior of the cap f extends for a suitable distance above the recessed enlarged portion, and is preferably made of the same diameter as the interior of the tube a. The upper rim of the tube a abuts against the annular shoulder f, formed by the enlarged screw-threaded portion of the cap.

The narrower and smooth portion 9 of the interior of the cap serves for housing the plunger p and spring h, which are slidable on rod z', between the knob and the head of the cap. By means of this rod 2' the plunger 20 is withdrawn from the tube a and into the cap 1 when the tube a is to be refilled With lubricant. The housing of the plunger 10 and spring h in the cap f is necessary to prevent an excessive compressing of the spring and the jamming of these parts. l/Vhen filling or refilling the tube a, the oiler inserts a stick Z of tallow or other lubricant, termed a candlestick, pushing it into the tube a as far as it will go, and then cuts it off even with the upper rim of the tube. If the cavity or recess g were not provided in the interior of the cap f, the screwing on of the cap would not only be very diiiicult, but also would result in so compressing the spring it, that its elasticity might be thereby destroyed. The parts would also be liable to be jammed, so that the proper and eflicient operation of the de vice would be impaired.

Heretofore it was not feasible to use candlestick lubricators for small pulleys, because their rigid plunger rods cannot be accommodated within the confined space, between the hub and the rim of the pulley, when the plunger is drawn up, as it must be on re-charging the lubricator with the lubricant, unless the tube is only partly filled. This necessitates so much more frequent refilling of the tube, that it renders the use of such candlestick lubricators impracticablle. Candlestick lubricators are much more preferable to oil cups, and the like devices, and their use on rotating pulleys is very desirable, particularly in view of the fact, that oil cups are not considered as efiicient for lubricating rotating pulleys, because the oil is forced outward by the centrifugal force. To enable candlestick lubricators to be used also on pulleys of smaller size, I employ, in my improved lubricator, a flexible, highly elastic, spring-like rod '5 for the stem of the plunger 79. This rod is preferably made as shown in Fig. 8, of a tightly wound steel wire, so it may be stowed underneath the inner surface of the rim of the pulley, as shown in Figs. 1 and 2, when the tube a is filled with a fresh charge of the lubricant (candlestick Z), the plunger 79 and the spring h being then withdrawn into the recess of the cap. The employing of this spring-like rod in the construction of the lubricator, enables me to use a tube nearly as long as the space between the hub and. the rim of the pulley, so that a lubricator, made according to my invention, does not require any more frequent re-filling of the tube than those used in other places, and my invention thus obviates the defect which heretofore prevented the use of such candlestick lubricators on small pulleys. The cap f may be screwed onto the tube a, while the rod 2' is bent, as shown in Figs. 1 and 2, the aperture 0 in the cap through which the rod '11 passes into the interior of the lubricator, being made sufficiently large, and having its edges rounded, as shown in the drawing, to enable this to be done readily and conveniently; there is no friction between these parts, the rod 2' and the aperture 0 becoming well greased when the lubricator is in use.

lVhen installing a. candlestick lubricator, constructed according to my invention, the tube a is screwed into the bore 0 of the hub b of the pulley, the candlestick Z is inserted into it, and then the cap 2 is set thereon, the plunger 79 and the spring 71, being withdrawn into the interior portion 9 of the cap. The part of the plunger p, projecting above the cap, is bent, and slid underneath the rim of the pulley, and while it is held in that posi tion with one hand the cap fmay be screwed onto the tube a with the other hand. The rod 2' is drawn into the tube a by the spring 72,, pressing the plunger upon the candlestick, as the candlestick is being gradually consumed, and being highly elastic, like a spring, straightens out again, after being bent as explained, and is thus also capable of performing the function of assisting in guiding the plunger ya so as to avoid its being tipped, 0r jammed in the tube. The rod 2' may also be pushed in, into the tube, after the cap f is screwed on, for which purpose an aperture 9 is provided in the plunger 2), and the latter slidably mounted on the rod, as shown in the enlarged detail in Fig. 8. Neither the pushing of the rod 2' into the tube, nor the leaving it in such bent position, interferes with the operation of the device. In either instance the spring it acts on the plunger, pressing the lower end of the candle stick 1 constantly in close contact with the shaft 6, which is to be lubri cated, and the rod 1' assists in guiding the plunger to the same extent as otherwise.

I claim as my invention:

A candlestick lubricator, com-prising a tube having one end adapted to be secured in the hub of pulley; a perforated cap secured on the other end of the tube; a plunger in the tube, a coiled wire rod, connected therewith, and journaled in the perforation of the tube, and a coiled spring, set between the plunger and the cap; substantially as herein shown and described.

EDWVIN L. FAUL.

Vitnesses VERONICA BRAUN, Aomas F. MADDEN.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Patents, Washington, 1). G.

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