Year: 1894

page_text: Date of Application, 1st Dec., 1894
Complete Specification Left, 2nd Sept., 1895-Accepted, 5th Oct., 1895
I, WILLIAM HENRY CRANSTONE, of The Phoenix Engineering Works, Hemel
Hempstead, in the County of Hertford, Engineer do hereby declare the nature of
my said invention to be as follows:-
My invention relates to an improved method of fastening together the ends of
the straps, belts or bands usually employed in the transmission of power in
conjunction with pulleys.
According to my invention I mount two rollers eccentrically in side plates or
links in such a manner that the opening between such rollers varies in width
according to the amount of eccentricity of, or rotation imparted to, the rollers.
In using my invention the ends of the strap, belt or band to be fastened are are
brought together, face to face, with the ends turned outwards. The improved
fastener is then arranged with the greatest opening between the rollers, and slipped
over the ends of the strap, belt or band. On drawing the strap, belt or band apart,
the rollers revolve eccentrically, on their axles and grip the ends of the strap, thus
binding the ends together. The rollers are formed with serrations, corrugations
or are roughened on about three parts of their circumference in order to increase
the gripping power and ensure the rotation of the rollers when the strap is drawn
apart.
Where the straps, belts or bands pass through or between shifting forks or other
guides or flanges, the sides of the belt are cut away to accommodate the side plates
or links of the fastener.
My invention may also be used as a means for readily adjusting the length of
the strap, belt or band when such strap belt or band requires shortening, through
the stretching of the materials of which the strap, belt or band are formed.
Dated 1st December 1894
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.
I, WILLIAM HENRY CRANSTONE, of The Phænix Engineering Works, Hemel
Hempstead, in the County of Hertford, Engineer, do hereby declare the nature of
my said 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 an improved method of fastening together the ends of
the straps, belts or bands usually employed in the transmission of power in
conjunction with pulleys.
And in order that my said invention may be particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which
similar letters of reference indicate corresponding parts.
Fig. 1 is an end elevation and Fig. 2 a plan of my improved belt fastener.
Fig. 3 illustrates the method of applying the belt fastener to the ends of a strap,
belt or band.

page_text: The belt fastener consists of two rollers A, A, mounted eccentrically in side
plates or links B, B, as shown and in such a manner that the opening C, between
such rollers varies in width according to relative positions or eccentricity of the
rollers.
In using my invention, the ends of the strap, belt or band D, are brought
together, face to face, as shown in Fig. 3, with the ends turned outwards. The
belt fastener is then arranged with the greatest opening between the rollers, and
slipped over the ends of the strap, belt or band. On drawing the strap apart, the
rollers revolve, eccentrically, on their axles and grip the ends of the strap, thus
securely binding the ends together. The rollers are formed with serrations,
corrugations as shown or are roughened on about three parts of their circumference
in order to increase the gripping power and ensure the rotation of both rollers
when the strap is pulled apart.
Where the strap passes through or between shifting forks or other guides or
flanges when in use, the sides of the belt are cut away, as shown by D' in Fig. 3,
to accommodate the side plates or links B of the fastener.
My invention is equally applicable for use as a means for readily adjusting the
length of the strap, belt or band when such strap, belt, or band requires shortening,
through the stretching of the materials of which the strap, belt or band is
formed.
It is obvious that my improved fastener may be used to unite the ends of ropes
employed in place of belts. In such cases a number of pairs of grooved and
eccentrically mounted rollers are fitted in one or more frame or frames or side
plates, and operating in a similar manner to those rollers previously described.
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. An improved belt fastener, consisting of two rollers mounted eccentrically in
two side plates or links, the rollers being serrated, corrugated or roughened on
about three parts of their circumference and operating substantially as herein before
described and illustrated by the drawings.
2. An improved fastener for use with ropes consisting of a number of pairs of
eccentrically mounted and grooved rollers fitted in a frame or frames or side plates
operating substantially as set forth.
3. The improved belt fastener, substantially as set forth.
GEO.
DOWNING,
8 Quality Court, London, W.C., Agent.