Improvements in the Means of Securing Tyres to Railway and other Wheels.
Year: 1891

page_text: Date of Application, 16th Mar., 1891-Accepted, 18th Apr., 1891
C
COMPLETE SPECIFICATION.
Improvements in the Means of Securing Tyres to Railway and
other Wheels.
I, Isaac FITCHEW CUTTLER, of 16. Blackburn Road, Darwen, in the County
Laut. Lesmative Superintendent. 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:-
The object of this invention is to construct wheels suitable for railway and
tramway locomotives and other vehicles on which metallic tyres are placed, and to
so arrange the tyres that when placed on the wheels they are readily secured
thereon, easily removed from the same for repairs, and replaced or supplemented
by a duplicate at little cost whenever necessary and consists in inserting a number
of tongues in the rim of the wheel which are operated by screws so as to engage
with a groove cut in the tyre and thereby secure the latter in position, and when
the tyre is to be removed, the screws are withdrawn and others inserted by which
the tongues are withdrawn from the before mentioned groove.
In the accompanying drawings
Fig. 1 represents a view of a wheel having the tyre secured thereon according
to my invention.
Fig. 2 is a plan of the wheel with the tyre removed.
Fig. 3 is a section of Fig. 1. through line a. b. showing one of the tongues
engaged with the groove in the tyre and the other tongue withdrawn.
Figs. 4 and 5 are views of a tongue drawn to a larger scale and
Figs. 6 and 7 enlarged sectional views through the wheel rim and tyre.
The body of the wheel is constructed with a rim A of strong section, which inny
be turned to a standard size and is cut to a smaller diameter for some distance
across the face of the wheel as at B. Through the circumference of the wheel
rin A, are bored in a radial direction, a number of holes, which are recessed to a
larger diameter at C for some distance into the rim, the remainder or small portion
of the hole at D being threaded.
Each of the before mentioned holes at C is intersected by a slot hole cut
parallel with the edges of the wheel rim, and in which is fitted a tongue F having
boss in the centre engaging in the hole C: a hole is bored in the boss and
threaded for the purpose as hereinafter described.
The tyre G is turned to fit the circumference of the wheel rim A. and has a
groove K cut therein in such position that, when the tyre is placed upon the wheel
rin with the flange G' in contact with the face of the reduced diameter at B. the
groove K. will be opposite the before mentioned tongues F. so that, on placing
screws in the threaded portion D. of the holes through the rim A. of the wheel
the respective tongues Fare forced outwards into the groove K. thereby securing
the tyre G in the requisite position on the rim of the wheel.
When it is required to remove the tyre G from the rim of the wheel the screws.
are withdrawn, and parallel screws H inserted, which pass through the threaded
portion D without engaging therewith, but engage with the thread cut in the hole
in tongue boss F so that on turning the screw, the tongue F is withdrawn from
and clear of the groove K. thereby leaving the tyre G free to be removed from the
wheel rim for the purpose required.
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 :-
The method or means of securing tyres on wheel rims by tongues F combining

page_text: with a groove K cut in the tyres and operated by screws, all arranged substan-
tially in the manner as hereinbefore described and illustrated by the accompanying
drawings.
Dated this 14th down of March 1801
JOHN WAUGH,
Agent.