Improvements in Belt Pulleys and Rope Driving Wheels.
Year: 1887

page_text: Date of Application, 31st Oct., 1887
Complete Specification Left, 28th July, 1888
Complete Specification Accepted, 31st Aug., 188
RESERVE C
PROVISIONAL SPECIFICATION.
Improvements in Belt Pulleys and Rope Driving Wheels.
We JOHN PITT TAPLEY and CHARLES WILSON of 5, Sugar Lane, Manchester, in
the County of Lancaster, Engineers, and WILLIAM TAYLOR ALEXANDER, of Brown
Street, Red Bank, Manchester aforesaid, Drysalter do hereby declare the nature of
said Invention for IMPROVEMENTS IN BELT PULLEYS AND ROPE DRIVING WHEELS,
to be as follows:-
Our Invention consists in an improved construction of belt pulleys and rope driving
wheels and the chief object of our improvements is to obtain additional grip or bite of
the driving belts or ropes on the said pulleys or wheels.
To effect this object we in the case of a belt pulley cast or otherwise form the face
of the pulley with any desired number of slots or holes of any suitable size and shape
the edges of each of these slots or holes being by preference bevelled so as to have a
smaller opening on the exterior than on the interior of the pulley.
Into each slot or hole we place a piece of india rubber vulcanized rubber rubber
belting or other suitable substance of a like nature upon the surface of which the
driving helt or strap will grip or bite; these pieces of material have their edges
bevelled to correspond with the bevelled edges of the slots or holes and the pieces are
secured in position by metal plates placed behind them and, secured to the pulley rim
by bolts with heads countersunk on the face of the pulley or it may be by rivets. We
prefer to employ bolts however as then the pieces of rubber or material can be adjusted
by tightening the nuts on the bolts so as to press the pieces farther outward through
the slots or holes to compensate for wear.
In the case of grooved wheel for ropes we should form slots or holes in the wheel and
fit therein blocks of rubber or other suitable substance of a like nature and secure
these blocks in position by plates and bolts or rivets as above described.

page_text: If instead of bevelled edges we employed straight edges it would be necessary to
have flanges on the pieces of rubber or material to prevent the plates pressing them
through the slots or holes.
Datal thi 50 r of Onta 1987
H. B. BARLOW,
Agent for Applicants.
Improvements in Belt Pulleys and Rope Driving Wheels.
We, JOHN PITT TAPLEY and CHARLES WILSON of 5 Sugar Lane Manchester in the
County of Lancaster Engineers and WILLIAM TAYLOR ALEXANDER of Brown Street
Red Bank Manchester aforesaid Drysalter, 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 :-
Our invention consists in an improved construction of belt pulleys and rope driving
wheels and the chief object of our improvements is to obtain additional grip or bite
of the driving belts or ropes on the said pulleys or wheels.
To effect this object we in the case of a belt pulley cast or otherwise form the face
of the pulley with any desired number of slots or holes of any suitable size and shape
the edges of each of these slots or holes being by preference bevelled so as to have a
smaller opening on the exterior than on the interior of the pulley.
Into each slot or hole we place a piece of india-rubber vulcanized rubber rubber
belting or other suitable substance of a like nature upon the surface of which the
driving belt or strap will grip or bite; these pieces of material have their edges
bevelled to correspond with the bevelled edges of the slots or holes and the pieces are
secured in position by metal plates placed behind them and secured to the pulley rim
by bolts with heads countersunk on the face of the pulley or it may be by rivets. We
prefer to employ holts however as then the pieces of rubber or material can be adjusted
by tightening the nuts on the bolts so as to press the pieces further outward through
the slots or holes to compensate for wear.
In the case of grooved wheels for ropes we should form slots or holes in the wheel
and fit therein blocks of rubber or other suitable substance of a like nature and secure
these blocks in position by plates and bolts or rivets as above described.
If instead of bevelled edges we employed straight edges it would be necessary

page_text: to have flanges on the pieces of rubber or material to prevent the plates pressing them
through the slots or holes.
And in order that our Invention may be fully understood and readily carried into
effect we will describe the accompanying two Sheets of Drawings reference being had
to the figures and letters marked thereon.
Figuro 1 is a side view partly in section and Fig. 2 a face view of a driving pulley
to which our Invention is applied. Fig. 2 is a view on a larger scale than the
foregoing illustrating the mode of attaching a piece of rubber to a pulley according to
our Invention. Figs. 3 and 4 are two views illustrating a slight modification in the
mode of applying our Invention to a pulley. Figs. 5 and 6 illustrate our Invention
as applied to a grooved rope pulley and Figs. 7 shows two views of a piece of
rubber for the same.
Referring first to Figs. 1, 2, and 2ª, a represents a pulloy in the face of which
are cast or otherwise formed a number of rectangular slots the edges a¹ of which are
bevelled as shown best in Fig. 2 in each of these slots is fitted a piece 6 of
india rubber vulcanized rubber rubber belting or other suitable substance of a like
nature which will give a good grip or bite for the driving strap the edges 61 of the
pieces bare bevelled to suit the bevelled edges a¹ of the slots in the face of the pulley.
We employ metal plates or pieces e which are placed behind the rubber or other
pieces band we secure the plates cin position by countersunk head bolts d which pass
through the rim of the pulley and also through slots in the pieces band plates c the nuts d¹
bear upon the plates e and are screwed up until they raise the outer side or face of
the rubber slightly in advance of the metal face of the pulley; as the rubber wears
it can be forced further outward by tightening the nuts or by putting packings
between the piece band the plate c.
The pulley shown in Figs. 1 and 2 has four pieces b of rubber or other material
applied to it but it is obvious that any other suitable number of pieces of any
convenient shape may be employed.
An example of this is given in Figs. 3 and 4 in which tho rubber or other pieces b
are placed in diagonal slots made in the rim of the pulley in this case the edges of the
slots are plain not bevelled as in Figs. 1 and 2 and the rubber or other pieces bare
formed with flanges which rest against the inner face of the pulley rim as shown
best in Fig. 4 the metal plates e support the pieces b and are held in position by bolts d
and nuts the rubber being held to project slightly above the metal face of the pulley.
In this arrangement if necessary paper or suitable packing material may be
placed between the pieces 6 and plates c to compensate for wear.
C
It is obvious that the rubber or other pieces bmight be supported by means of
flanges when applied to rectangular slots as illustrated by Figs. 1 and 2 and
vice versa that the edges of the diagonal slots illustrated by Figs. 3 and 4 might be
bevelled and the edges of the pieces 6 bevelled to correspond and in all cases
screws or rivets might if preferred be employed to secure the plates c and pioces b
in position.
In some cases we propose to support more than one rubber or other piece by
means of a single metal plate or ring the plate or ring being secured to the
inner face of the pulley substantially in the manner previously described.
In Figs. 5 and 6 we illustrate our Invention applied to a grooved pulley for
rope driving.
In these views.gy is the section of the rim of the pulley, g' the flanges of the same
and the slots which are formed in the rim for the reception of the grooved blocks
or pieces of rubber or other suitable material one of which is shown detached in
Fig. 7; these blocks or pieces are held in position by metal plates i flanged at
and secured to the flanges by bolts ; or instead of securing the plates to the
flanges g they may be secured to the rim of the wheel. The blocks or pieces / may
extend the whole width of the pulley face from g¹ to g' but we propose to make them
about one half of the width and place them alternately to the right hand and left hand
in adjoining slots of the pulley to prevent weakening the rim. The slots may be
formed parallel with or at any suitable angle to the axis of the wheel or pulley.

page_text: Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. A belt pulley or rope driving wheel formed with slots or holes in its rim'in
which slots or holes pieces of india-rubber vulcanized rubber or other suitable material
of a like nature are fitted and held in position therein by plates secured with bolts
screws rivets or other suitable fastenings substantially as described and as illustrated
by the accompanying Drawings.
2. The several constructions combinations and arrangements of parts embodying
our improvements in belt pulleys and rope driving wheels substantially as and
for the purposes herein described and as shown.
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicants.