Improvements in Pulleys or Guide-eyes for Ropes and the like.
Year: 1899

page_text: Date of Application, 11th Jan., 1899-Accepted, 25th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Pulleys or Guide-eyes for Ropes and the like.
I, KATILARINE ELIZABETH NORIE, of Sunny Mead, Beechen Cliff, Bath, (no
calling), do hereby declare the nature of this invention and in what manner the
sume is to be performed, to be particularly described and ascertained in and by
the following statement:-
My invention relates to improvements in pulleys or guide eyes the object
being to provide a pulley or guide eye that shall work with less friction than
the ordinary roller or wheel pulley. This improved pulley is suitable for use
on ships, boats, and the like, for hoisting or hauling generally, while it can
also be applied to other purposes, such as for use in connection with blind cords,
gasaliers, or for other purposes for which the ordinary roller or wheel pulleys
are now employed.
This invention consists, according to one form of same, in mounting upon a
metal ring or circular core, a number of metal balls, capable of freely revolving
and over which the cord, chain wire or the like passes, while according to a
modified form of my invention, the pulley consists of a hollow annular frame
containing a number of balls, the side edges of said frame reaching a sufficient
distance beyond the centre of such balls and being bent or turned towards said
balls in such a manner as to prevent their removal from the frame.
In order that my invention may be fully understood, I will now proceed to
describe same with reference to the accompanying drawings in which:
Fig. I is an elevation of a pulley or guide eye constructed according to this
invention.
Fig. 2 is a similar view of a pulley or guide eye of modified form.
Fig. 3 is a cross section taken through Fig. 2 illustrating the construction
of sanie.
According to one form of my invention, and as illustrated in Fig 1, the im-
proved pulley on guide eye comprises a suitable metal ring or core a upon
which is mounted a sufficient number of balls capable of freely revolving,
and prevented from separating and allowing the cord, chain or the like to pass
between them, by the collars or shoulders 6. A smaller ring d is provided by
means of which the pulley may be securely fastened in any required position,
while the chain, cord, wire, rope or the like is passed through the larger ring
formed by the circular core, and rests or bears upon the surface of the balls b.
which turn or revolve as the said chain, cord, rope or the like passes or travels
over them
In the modified form of pulley or guide eye shown in Figs. 2 and 3, a hollow
annular frame f is provided approximately U-shaped in cross section, and
thickened at the part f¹, representing the outer periphery of the frame, to give
the necessary strength.
In this frame a sufficient number of balls 6 are inserted, the edges g of the
said frame, which are turned over as shown, extend beyond the centres of the
balls and are pressed or turned towards the said balls, after the latter have been
Inced in position, so as to retain them in place, but at the same time allowing

page_text: them to freely revolve, while a ring is formed at the top of the aforesaid
annular frame f to allow of the pulley or guide eye being secured in any
required position.
Although in the drawings a pulley suitable for heavy work has been illustrated
it is obvious that pulleys working on the same principle may be constructed
of any convenient size for the purpose in view, while two, three or more pulleys
may be formed integrally with a common centre piece for use in connection
with gasaliers and the like.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1/. A pulley or guide eye comprising a suitable ring or core upon which is
mounted a series of balls free to revolve and over which the cord, chain wire,
rope or the like passes, substantially as herein described and shown with reference
to Fig. 1 of the accompanying drawings.
2. The modified form of pulley or guide eye comprising a hollow annular
frame f, containing balls b, retained in place by the inturned edges g of the
said frame, substantially as herein described and shown with reference to
Figs. 2 and 3 of the accompanying drawings, and for the purposes specified.
Dated this 741 dont T
1900
F. G. CASSELL
(Of Cassell & Co.),
22, Glasshouse Street, Regent Street, London, W.
Agent for the Applicant.