Improvements in the Means for Securing Wheels, Pulleys, Couplings, and other like articles on Shafts.
Year: 1891

page_text: Date of Application, 17th Dec., 1891
Complete Specification Left, 17th Oct., 1892-Accepted, 3rd Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Means for Securing Wheels, Pulleys, Couplings,
and other like articles on Shafts.
I, RICHARD SAMUEL WOOD of 44 Hyde Street Chorlton Road Manchester
in the County of Lancaster, Engineer, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to devices by means of which pulleys wheels couplings
and other like articles may be secured upon their shafts, and its objects are to
enable the said articles to be fixed by simpler and less costly means than those at
present commonly employed.
Split cones have been used for the purpose of my invention, but although in some
cases they are used successfully they are too costly for general work.
Instead of using split cones and other similar means, I employ bars tapered at
each end. These bars have a length about equal to the depth of the eye of the
pulley or other article, and a sufficient number of them are laid parallel with each
other around the shaft where the pulley or article is to be secured, and are
temporarily fastened in this position. The eye of the pulley wheel or coupling
may be screwed with an internal thread at one end at both ends or right through,
and is fitted with a bush or bushes externally screwed to fit the screw thread
in the eye. The bore of the bush or bushes is tapered to correspond with the taper
of the bars.
Assuming that the eye of the wheel pulley or coupling is screw threaded at each
end or right through, the eye, having been brought over the tapered bars, one of
the bushes is screwed in at each end of the eye. The bars are thereby firmly
compressed upon the shaft and the rigid connection between the shaft and wheel
pulley or coupling is established.
If the eye of the pulley or other article be screwed at one end only, the opposite
end of the eye is tapered or coned to correspond with the taper on the bars, and a
bush is screwed into the eye at the opposite end.
Dated this 16th day of December A.D. 1891
WM. E. HEYS,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Means for Securing Wheels, Pulleys, Couplings,
and other like articles on Shafts.
I, RICHARD SAMUEL WOOD, of 44 Hyde Street, Chorlton Road, Manchester,
in the County of Lancaster, Engineer, do hereby declare the nature of this
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 devices by means of which pulleys, wheels, couplings
and other like articles may be secured upon their shafts and its objects are to
enable the said articles to be fixed by simpler and less costly means than those at
present commonly employed.
In the accompanying sheet of explanatory drawings,
Figure 1 is a sectional elevation and Figure 2 a sectional end elevation of my
improved form of coupling.
Figure 3 is sectional elevation and Figure 4 an end elevation of my improved
adjustable bush for securing pulleys to shafting.

page_text: Figure 5 is a sectional elevation and Figure 6 an end elevation of my improved
bush arranged as a loose or removable collar.
Figure 7 is a sectional elevation and Figure 8 an end view of my improved bush
detached from its connections.
Split cones have been used for the purpose of my invention, but although in some
cases they are used successfully they are too costly. for general work. Instead
of using split cones and other similar means I employ bars A tapered at each end
as shown in Figure 1 and Figure 2. These bars have a length about equal to the
depth of the eye of the pulley or other article, and a sufficient number of them are
laid parallel with each other around the shaft where the pulley or article is to be
secured, and are temporarily fastened in this position by means of a cord or band
of pliable material B. The eye of the pulley wheel C or coupling D may, be
screwed with an internal thread E at one end, at both ends, or right through, and
can then be fitted with a bush F or bushes externally screwed to fit the screw
thread E in the eye. The bore G of the bush or bush is tapered to correspond with
the tapers of the bars A.
Assuming that the eye of the wheel pulley or coupling is screw threaded at each
end or right through the eye having been brought over the tapered bars, one of the
bushes is screwed in at each end of the eye. The bars are thereby firmly com-
pressed upon the shaft, and the rigid connection between the shaft and wheel pulley
or coupling is established.
If the eye of the pulley or other article be screwed at one end only, the opposite
end of the eye is tapered or coned to correspond with the taper on the bars, and
a bush is screwed into the eye at the one end as shown in Figures 1, 3 and 5.
I construct a loose collar in the form shown at Figures 5 and 6 by boring out a
ring H to suit the taper bars A at the one end, and I screw the other end to receive
the nut or bush F this bush being similarly tapered to the end of the collar so
as to cause the bars A to be closed together when the bush is screwed into the
ring H in this manner causing a grip to be obtained of the shaft without the
necessity of keyways, keys or set pins.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The construction of conical strips and nuts or bushes for the same for
attachment to pulleys, shafting, couplings collars and the like, substantially as
and for the purposes hereinbefore described and as illustrated in the accompanying
drawings.
2. The combination and arrangement of conically bored bushes and tapered bars
or segments, for effecting an attachment to a shaft or spindle, substantially as
herein before described and as illustrated in the accompanying drawings.
Dated this 15th day of October 1892.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.