US786757A - Pulley. - Google Patents

Description

' No. 786,757. f.; PATBNTED A1ER.4E, i9o5.

P. M GUNBY a o. s. BROWN.

' PULLEY.

l' PPLIOATIQK FILED JULY 30, 1904.

UNITED STATES Patented April 4, 1905.

PATENT OFFiCE.

PULLEY.

SPECIFICATION forming part of Letters Patent No.Y 786,757, dated April 4, 1905.

Application filed .Tuly 30, 1904. Serial No. 218,897.

To all whom it nfl/ay concern,.-

Be it known that we, FRANK M. GUNBY and CHARLES S. BROWN, citizens of the United States, residing at Columbus, in thecounty of Muscogee and State of Georgia, have invented new and useful Improvements in Pulleys, of which the following'is a specication.

This invention relates to pulleys of the loose type, and particularly to an'oiling means and to devices for preventing the oil from being thrown out from the hub of the pulley and running down over the latter to the rim.

The improvement has been especiallydevised for use in connection with binder-pulleys of spinning-frames; but it will be understood that the same features might be equally well applied to loose gear-wheels or other analogous machine elements.

of felt, extending over the whole length of the lower portion of the bearing and terminally disposed in oil receptacles or chambers in.

which the oil is held at all times and shielded from exposure, and thus kept free of dirt and grit. By this means also the oil is returned directly to the chambers into which the ter-f minals of the feeding-strip project', and thus obviate waste.

In the drawings, Figure 1 is a side elevation, partially in section, of a pulley embodying the features of the invention. Fig. 2 is a transverse vertical section on the line 2 2, Fig. 1. Fig.' 3 is .an enlarged longitudinal section through the bearing, showing the pulley-hub and a portion of the arms or web thereof and also a part of the stand or holding means for the bearing. y

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral 1 indicates a stand, hanger, or

holding means adapted to be secured as desired, either in connection with `a part ofV a machine-frame, such asa spinning-machine, or toysome other support. The lower portion of the stand has outwardly-projecting side flanges 2, which coincide with and are attached to similar flanges 3 of a lower section 4, which will be more fully hereinafter explained. The sleeve or quill 5 is immovably embraced by the lower portion of the stand 1 and the section 4, and to establish a firm connection between the stand and connection 4 and the sleeve or quill a number of key-screws 6 are inserted longitudinally into the joint from opposite ends, as clearly shown by Fig. 3. As many of these key-screws may be used as found necessary, and in applying them in the manner set forth leakage of the oil through the joint formed between the sleeve/or quill and the stand 1 and section 4 is less liable to ensue. The lower extremity of the stand 1, ad-

-jacent to the flanges 2, has inwardly-projecting oppositely-disposed guards 7, which are substantially semicircular in contour and are recessed, as at 8, to inclose the upper portion .of the hub 9 of the pulley lO. These guards .passing to the rim.

The lower section 4 has two distinct oil-receiving chambers 12 with inner opposing spaced walls 1'3,these walls being provided with slots 14, through which the pulley-hub 9 proy j ects into the chambers, as clearlyshown by Fig. 3. In the lower portion of the sleeve or quill 5 and continuing through portions of the outer end walls of the oilchambers 12 a slot or seat 15 is formed to receive a fabric strip 16, preferably felt, which is continuous throughout the length of the bearing and has its terminals 17 individually held inthe oil-chambers.

From the foregoing it will be seen that the pulley-hub 9 runs loose on the sleeve lor quill 5 and the bearing is regularly lubricated through the medium of the felt strip 16, which IOO may be properly termed a wiclc the oil passing upwardly through the wich from both the chambers or around one chamber to the other with consequent advantages in taking up the excess oil. Furthermore, as the pulleyhub 9 moves through the chambers it will materially operate to return any oil that may have run on the outside to the said chambers, especially in view of the cooperation of the guards with the hub in preventing an outthrow of oil. For convenience in filling the chambers 12 and ascertaining the height ot' the oil therein a feed-opening is provided, in which a feedtube 18 is inserted. It is obvious that this feed-tube may contain a sight-glass or be construeted similarly to a gage.

The oil-chambers are in the form of boxes of suitable dimensions which conjointly make up the lower section 4 and are removably held by the anges 3 against the iianges 2, and in assembling the parts it will be understood that the chambers are applied and secured over the lower portion of the hub 9 of the pulley after the wick is in place, and the wick terminals are then disposed in the chambers as shown.

Changes in the proportions and dimensions may be made to accommodate various applications, and variations in details may also be resorted to without departing from the spirit of the invention.

Having thus fully described the invention, what is claimed as nevi7 isl. A support having a bearing means, separate oil-chambers, and an absorbent oil-feeder extending longitudinally of the bearing means and provided with terminal portions continuous therewith and projected into the oil-chambers, combined with a rotatable element running loosely on the bearing means between the oil-chambers and having the hub thereof engaged by the longitudinal portion of the oilfeeder.

2. Asupporthavinglowerdistinctoil-chambers spaced apart Jfrom each other, and an absorbent oil-feeder extending longitudinally of the lower part of the support and provided with continuous terminals projected into the oil-chambers, combined with a rotatable element running loose in the support and having its hub rotatable in the oil-chambers, the longitudinal portion of the oil-feeder engaging the inner part ot' the hub.

3. A support having bearing means, upper inwardly-extending guards open at their inner terminals, and lower distinct oil-chambers spaced apart from each other combined with a rotatable element loosely held by the bearing means and rotatable between the oil-chambers, the upper guards projecting over portions of the hub on the element.

4. A support, having bearing means, lower distinct oil-chambers spaced apart from each other, and upper guards projecting inwardly and having open inner terminals, combined with a rotatable element loosely held by the bearing means, and rotatable between theinner terminals ot' the guards and the oil-chambers, the hub ot' the rotatable element being projected under the guards and into the oilchambers.

5. A support, having bearing means, oilfeeding means for the bearing means, and upper i11wardly-projecting guards having inner open ends, combined with a rotatable clement having a hub projecting in opposite directions under the guards and into the oil-feeding means.

6. A support, having bearing means ixed therein, lower oil-chambers, upper inwardlyprojecting guards, andan absorbent oil-feeder extending longitudinally over the lower portion ot' the bearing means and provided with continuous terminals projected into the oilchanibers, combined with a rotatable element loosely applied on the bearing means and having a hub rotatable in the oil-chambers and under the guards, the oil-feeder being interposed between the lower part ot' the bearing means and the hub of the rotatable element.

In testimony whereof we have hereunto set our hands in presence ot two subscribing witnesses.

FRANK M. GUNBY. CHARLES S. BROWN.

i/Vitnesses:

O. S. JORDAN, A. P. laf/inn.

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