Improvements in Rollers for Guiding and Supporting Haulage and other Ropes and Chains.
Year: 1890

page_text: Date of Application, 22nd Feb., 1890
Complete Specification Left, 22nd Nov., 1890-Accepted, 27th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in Rollers for Guiding and Supporting Haulage and
other Ropes and Chains.
I, GEORGE SPENCER, of Tuttle Hill House, near Nuneaton, Mining Engineer, do
hereby declare the nature of this invention to be as follows:-
In the introduction and application of corrugations and grooves instead of
regular surfaces to rollers used for supporting and guiding ropes or chains for
haulage, transmission of power and such like purposes.
These grooves are intended among other improvements to secure or facilitate the
rotary motion of the roller by a useful friction of the rope on their sides and so
prevent uneven and excessive wear of the roller and rope; to distribute the wear
throughout the roller instead of the greater part falling to the lot of one part only
which is generally the case with ordinary cylindrical and conical rollers.
The corrugations and grooves are formed in the direction of the circumference of
the roller and are wave like, U shaped, or V shaped in section. These my improved
rollers are designed to be made; of cast metal of one piece only; of rolled steel or
iron or other metal cylinders with wrought or cast ends; in sections (each section
forming one or more grooves or part of a groove) of wrought or cast metal wood or
other suitable material, held together with the axle or bolts or both.
When these rollers are cast, I prefer to dispose the metal so as to have the greater
thickness at the parts subjected to the greatest amount of wear.
In using wood or such like material I arrange a series of discs of different diameters
alternated so as to form the grooves.
I sometimes make these rollers in sections or rings of metal for facilitating the
replacing of worn ont parts, in which case the rings are made to fit into each other
by means of suitable grooves rebates or lugs, and these rings, with or without spokes,
are mounted upon a suitable axle and held together with cotters or nuts and bolts, and
in other cases the rings are mounted on a drum.
In some cases these rollers are made partly plane and partly grooved.
GEORGE SPENCER.
COMPLETE SPECIFICATION.
Improvements in Rollers for Guiding and Supporting Haulage and
other Ropes and Chains.
I, GEORGE SPENCER, of Tuttle Hill House, Nuneaton, in the County of Warwick,
Mining 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 :-
My invention relates to rollers employed for guiding or supporting haulage ropes
or chains or ropes used for the transmission of power, and consists in forming on the
surface of the roller a series of corrugations or grooves, any one of which is adapted
to receive the rope; the rope sometimes falling and running in one groove and
sometimes in another.
The object of this invention is to provide bearing surfaces on the shell of the roller
which make the wear on the rope and on the roller more even and cause the roller to
turn with greater certainty than bitherto, whereby the lives of the rope and roller are
considerably lengthened.
In the accompanying drawings, Fig. 1 represents in vertical section a corrugated
or grooved flanged roller made in accordance with the present invention; Fig. 2

page_text: being a cross section on the line 22 in Fig. 1. Fig. 3 shews a similar roller without
flanges. Fig. 4 illustrates the application of the invention to a conical roller. In
Fig. 5, the grooves shewn are adapted for the reception of ropes of different sizes.
In Fig. 6, the roller is made partly of wrought metal. In Fig. 7, the inner surface
of the shell is not corrugated. Fig. 8 is a diagram representing the application of
three of the improved rollers for supporting part of a haulage rope.
In Figs. 1 to 4, the shell A is formed on the outside into a series of grooves a ;
grooves a being also formed, for the sake of economizing the metal and lessening the
weight of the roller, on the inside of the shell. The rope B (Figs. 1, 3, 5 and 8)
runs in one of the grooves a; sometimes (after the passage of the tub or waggon)
dropping into one groove and sometimes into another. The rope does not drop into
the same groove continuously, principally on account of the slight and unavoidable
variations in the build of the tubs or waggons and the uneven vibrations of the rope.
The sides as well as the bottom of the groove a are in contact with the rope; a much
greater bearing surface being, therefore, presented than when the rope works on an
ordinary plain cylindrical roller.
In Fig. 5, the grooves a are V-shaped. This design is particularly adapted for use
where the rope consists of several lengths spliced together and varying in diameter,
or where leading and tail ropes of different diameters are employed.
In Fig. 6, the shell A is of wrought iron or steel. The ends A' are preferably of
cast or malleable iron, though they may be of wrought metal stamped into shape.
In the design shewn, they are held in place by means of cotters c passing through
their bosses A' and through slots in the axle C
In the modified form of roller illustrated in Fig. 7, the grooves a¹ are omitted; the
inside of the shell being plain.
Fig. 8 is à diagram serving as an exemplification of the manner in which the
rollers are used. The rope B is supported by the rollers A instead of being allowed
to run on the ground or floor D.
The shell of the improved roller may, instead of being in one piece, be built up in
sections. When the shell consists of a series of ring-like sections placed end to end,
the outer sections may be secured to the axle by cotters or nuts, or the sections may
be held together by separate bolts and nuts. The inner ring-like sections may be
provided with spokes and bosses like the outer sections, or their edges may be coned
or otherwise formed to engage with and support one another.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I claim :-
1. The herein-described roller for supporting haulage or other ropes, the outer
surface of the sbell being formed into a series of grooves; the rope working in one
groove only at a time, but in either of the grooves.
2. A roller for the purposes and formed substantially as herein set forth; the same
comprising a shell A having a series of grooves a, each of which is adapted for the
reception of the
3. A roller for
rope.
purposes and formed substantially as herein set forth; the same
comprising a shell A having on the outside a series of grooves a and on the inside
a series of grooves a¹.
Dated this 19th day of November 1890.