Self-lubricating Sheaves, Pulleys, Wheels, and like Rotating Parts.
Year: 1891

page_text: Date of Application, 21th Feb., 1891
Complete Specification Left, 19th ec., 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Self-lubricating Sheaves, Pulleys, Wheels, and like Rotating Parts.
We, JOHN McFarlane, Engineer, of 99, Abbott's Road, Poplar, London, E.,
and WILLIAM REID, Merchant, of 112, Fenchurch Street, London, E.C., do
hereby declare the nature of the said invention to be as follows:--
This invention relates to self-lubricating sheaves, pulleys, wheels and like
rotating parts, the object of the invention being to produce reliable self-lubricating
sheaves or the like.
The invention consists in the application to the hub of the sheave or the like, of
a gun-metal or other suitable metal bush also adapted to fit the shaft or spindle on
which the sheave is to be mounted and will rotate, and in the inner periphery of
which bush there is formed a series of equidistant and parallel or otherwise
disposed grooves or channels into which is packed leather or other suitable
absorbent of the oil or other lubricant used, such packing abutting against the said
shaft or spindle.
The sheave or the like is also adapted with a cistern or container of oil other
suitable lubricant, which cistern may advantageously occupy the position of the one
of the spokes of the sheave, and into which cistern the lubricant can be admitted
The said cistern
through an opening which can be closed by a removable screw.
is formed with channels or ducts leading through and to the inner periphery of the
hub of the sheave, into annular recesses formed in such bub, or into like recesses
formed in the outer periphery of the said bush, from either of which recesses the
lubricant obtains access to the said leather or other absorbent packing abutting
against the shaft or spindle, through radially disposed holes or apertures extending
through the bush. There may be more than one of such cisterns.
Dated this 24th day of February 1891.
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Self-lubricating Sheaves, Pulleys, Wheels, and like Rotating Parts.
We, JOHN MCFARLANE, Engineer, of 99 Abbott's Road, Poplar, London, E.,
and WILLIAM REID, Merchant, of 112, Fenchurch Street, London, E.C. do
hereby declare the nature of the said invention and in what manner the same is
to be performed to be particularly described and ascertained in and by the
following statement :-
This invention relates to self-lubricating sheaves, pulleys, wheels and like
rotating parts (hereinafter intended to be included under the general designation
of "sheave"), and is illustrated on the accompanying drawings in Figs. 1, and 2,
and also in Figs. 3, to 6, which represent modifications of the invention.
The invention consists in the application to the hub 7, of the sheave 8, of a gun-
metal or other suitable metal bush 9, fitting the inner periphery of the bub, which
may be of any suitable form, and also fitting around the shaft or spindle 10, on
which the sheave is or is to be mounted and will rotate.
In the inner periphery of the bush there is formed a series of equidistant and
parallel or otherwise disposed grooves or channels 11, into which there is packed
leather or other suitable absorbent 12, of the oil or other lubricant used, such
packing abutting against the shaft.

page_text: The sheave is also formed or adapted with a cistern or receptacle 13, into which
the lubricant can be inserted through an opening 14, which can be closed by a
screw-plug 15, or in any other suitable manner. Such lubricant-receptacle may
advantageously occupy the position of one of the spokes 16, of the sheave, vide
Figs. 1, and 2. Or the sheave may be formed or fitted with two or more of such
receptacles, vide Fig. 3, or with an annular receptacle, vide Figs. 4, to 6.
The lubricant-receptacles communicate with an annular recess (or recesses) 17,
formed in the inner periphery of the hub, vide Figs. 1 to 3 and 6, or with a like
recess or recesses. formed in the outer periphery of the bush, vide Figs. 4 and 5, by
means of suitably disposed channels or ducts 18, by which the lubricant is led to
such recess or recesses, from which it obtains access to the said absorbent packing
abutting against the shaft, through radially disposed holes or apertures 19,
extending through the bush to the said grooves 11, vide Figs. 1 to 5, or directly
vide Fig. 6.
In lieu of such grooves 11, being made equidistant and parallel, as represented in
Figs. 1, to, they may, as aforesaid, be otherwise disposed, for example, they may
be made of a conical formation radially through the bush, vide Fig. 6, which would
facilitate the insertion of the packing.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The formation of self-lubricating sheaves, pulleys, wheels and like rotating
parts substantially as hereinbefore described with reference to the accompanying
drawings.
2. The application to the hub of a sheave, pulley, wheel or like rotating part
formed with one or more lubricating receptacles in communication with the inner
periphery of the hub, of a bush fitting such hub and the shaft on which the sheave
is mounted and formed with grooves or channels packed with leather or other
suitable absorbent of the lubricant used abutting against the shaft and lubricating
the same.
Dated this 10th day of December 1891
DAY, DAVIES & HUNT,
321, High Holborn, London, W.C., Agents for the Applicants.