Improvements in Pullies or Wheels for Use in the Transmission of Power.
Year: 1899

page_text: Date of Application, 1st June, 1899
Complete Specification Left, 1st Mar., 1900-Accepted, 7th Apr., 1900
PROVISIONAL SPECIFICATION.
Improvements in Pullies or Wheels for Use in the Transmission of
Power.
I, JAMES WETHERILT, of 179, Maida Vale, in the County of Middlesex,
Gentleman, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to the improved construction of the frictional surfaces
of pullies or wheels for use in the transmission of power by means of belts, or
bands, in machinery, or for like use.
The improvements consist in the employment of a continuous strip of steel,
or other suitable material, as a backing or supporting means for a series of discs,
or other forms of india rubber or equivalent elastic material, affixed in series in
or to the said band or strip.
The band or strip is then secured upon the surface of the pulley or wheel and
the rubber or elastic pieces engage the driving band or band to be driven as the
case may be.
As an example of a specific construction;
I employ a driving pulley and around this I bend a band of steel of suitable
quality and temper, said band being perforated with a series of holes in lines
or arrangement longitudinally transversely, diagonally, or otherwise, each hole
forming a socket for a plug of india rubber fixed therein and projecting on each
face of the band so as to frictionally engage with the pulley which suports it and
the band which the pulley drives or is driven by. The opposite pulley or wheel
is similarly provided.
The engagement between the pulleys and their coverings may be further
secured by screws, rivets or clips.
The rubber bands or their equivalents may be in the form of a series of strips
or pieces of extended shape.
In the expression continuous strip or band I include constructions made up
of any number of pieces joined together or connected.
The ends of the bands or strips of steel may be rivetted by eyelets, or other
fastenings suitable to the material of the band may be used.
This construction affords enormous frictional hold to the driving bauds and
enables slack bands to be used whilst any lodgment of air, or "air cushioning"
between the driving band and pulley is entirely obviated, and many other
advantages are secured.
ni 1
11 1 T 1000
WM. BROOKES & SON,
55 and 56, Chancery Lane, London, Agents for the Applicant.

page_text: Improvements in Pullies or Wheels for Use in the Transmission of
Power.
I, JAMES WETHERILT, of 179, Maida Vale, in the County of Middlesex,
Gentleman, 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 the improved construction of the frictional surfaces
of pullies or wheels for use in the transmission of power by means of belts or
bands in machinery or for like use.
Fig. 1 shows a plan view of a piece of a strip of material or combined materials,
constructed according to the invention for application to a pulley or wheel to
form its frictional surface.
Fig. 2 shows an edge view of Fig. 1.
Fig. 3 shows one of the pieces of rubber separately in side elevation.
Fig. 4 shows in side view a pulley with a band of the combined material
applied on its periphery in an endless belt or surface.
In Figs. 1 and 2 some of the holes in the pieces of band are shown as empty
of the pieces of india-rubber, or equivalent elastic material.
The improvements consist in the employment of a continuous strip or strips a
joined together or built up of steel or other suitable material as a backing or
supporting means for a series of discs b, b, or other forms of india rubber or
equivalent elastic material, affixed in series such as indicated in Fig. 1 in or to
the said bands or strips a. The band or strip a is then secured upon the surface
of the pulley or wheel and the rubber or elastic pieces engage the driving
band or band to be driven as the case may be which band may be enwrapped
partly around said pulley or wheel to be driven thereby or to drive the same.
As an example of a specific construction; I have illustrated in the accompany-
ing drawings a driving pulley d and around this I have shown bent a band of steel
which must be of suitable quality and temper said band a being perforated with
a series of holes a¹ in lines as shown or other arrangement longitudinally, trans-
versely, diagonally or otherwise, each hole forming a socket for a plug of
india rubber fixed thereon and projecting on each face 1 or 2 of the band so
as to be adapted for frictional engagement with the peripheral surface of the
pulley which supports it and also with the surface of the band driven by or
which may serve to drive it.
The opposite pulley or wheel is to be similarly provided with a continuous
strip of the combined materials as described.
The engagement between the pulleys and their coverings may be further
secured by screws, rivets or clips if desired.
The rubber pieces forming the frictional surfaces of the bands, or their
equivalent, may be in the form of a series of strips, or pieces of extended shape-
instead of discs as shown; and further such discs, strips or pieces may be applied
and fixed on one face or side only of the band or its equivalent.
In the expression continuous strip, or band, I include constructions made up
of any number of pieces joined together, or connected, by eyelets, or the like
fastening.
The ends of the bands or strips of steel as well as the separate pieces com-
posing it may be rivetted by such eyelets, or other fastenings as may be suitable
to the material of the band used.
This construction affords enormous frictional hold to the driving bands and

page_text: enables slack bands to be used whilst any lodgement of air or "air cushioning"
between the driving band and pulley is entirely obviated, and many other
advantages are secured.
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 construction and use as the frictional surface covering of a wheel or
pulley for use in the transmission of power, of a combination of pieces of india
rubber or equivalent elastic material secured in place in holes in a thin steel or
equivalent band, said band being composed of one. or a plurality of pieces and
joined at the ends and applied substantially as and for the purpose set forth and
as illustrated by the drawings.
uary μου.
WM. BROOKES & SON,
55 and 56, Chancery Lane, London, Agents for the Applicant.