An Improved Method or Manner of Constructing Driving Pulleys, Drums, Wagon, Cart, Locomotive, or Portable Engine Wheels, also Truck and Tram Car Wheels, made of Steel or Iron.
Year: 1894

page_text: Date of Application, 10th Feb., 1894
Complete Specification Left, 8th. Oct., 1894-Accepted, 8th Dec., 1894
PROVISIONAL SPECIFICATION.
An Improved Method or Manner of Constructing Driving Pulleys,
Drums, Wagon, Cart, Locomotive, or Portable Engine Wheels,
also Truck and Tram Car Wheels, made of Steel or Iron.
We JAMES BRAND MACKIE and HUGH REGINALD SUTTON both of
Caversham Road, Reading, in the County of Berks Engineers, do hereby declare
the nature of this invention to be as follows:-
In forming or making a pulley, drum, or wheel of any kind, we use a special
shaped bar of iron or steel bent to the shape required to form a sectional part of
the said pulley, drum or wheel, which when placed together by bolts or rivets or
any mechanical means form a complete set of spokes for said pulley, drum or
wheel.
The spokes are then bolted together and a boss of suitable metal cast on to them
forming the frame of a pulley, drum or wheel without the periphery.
We then take a plate of steel or iron and bend or roll it to the diameter of the
pulley, drum or wheel required, the said band being fixed to the pulley drum or
wheel with bolts, rivets screws or any mechanical means.
The pulley, drum, or wheel is then made true on the edges by turning or any other
mechanical means. Afterwards it is flanged inwards on the two edges of the
periphery or band, by an arrangement in a lathe or any other means, which imparts
additional strength to the periphery.
We make the boss split in respect to the pulleys or drums, but in case of wheels
the boss will be whole, in either case however we may make them whole or-split-
in making a split pulley or drum we shall use an even number of spokes and apply
two joints instead of one.
The section of iron or steel to be employed is of rail shape, having a rib
longitudinally along the bar, the said rib being hollow underneath so that when two
bars are placed together they form a hollow ribbed spoke imparting additional
strength to the wheel, drum or pulley.
Dated this 9th day of February 1894.
J. B. MACKIE.
H. REGINALD SUTTON.
COMPLETE SPECIFICATION.
An Improved Method or Manner of Constructing Driving Pulleys,
Drums, Wagon, Cart, Locomotive, or Portable Engine Wheels,
also Truck and Tram Car Wheels, made of Steel or Iron.
-
We JAMES BRAND MACKIE and HUGH REGINALD SUTTON, both of
Caversham Road Reading in the County of Berks, Mechanical Engineers and
Iron Founders 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 :—
In forming or making a pulley drum or wheel of any kind we use a special
shaped bar of iron or steel or other material bent to the shape required to form a
sectional part of the same pulley drum or wheel, which when placed together by
bolts or rivets or any mechanical means form a complete set of spokes for said
pulley drum or wheel.

page_text: The spokes are then bolted together and a boss of suitable metal cast on to them
thus forming the frame of a pulley drum or wheel without the periphery.
We then take a plate of steel or iron or other suitable metal or material and
bend or roll it to the diameter of the pulley, drum, or wheel required, the said
band being fixed to the pulley, with bolts, rivets, screws or any other mechanical
means.
The pulley drum, or wheel is then made true on the edges by turning or any
other mechanical means, it is then flanged inwards on the two edges of the periphery
by an arrangement in a lathe or any other means which imparts additional strength
to the periphery.
We make the boss split in respect to the spring, pulleys or drums, but in respect
to wheels we make them whole but in either case we may make them whole or
solid. In making a pulley in halves, we make an even number of spokes and
apply two joints instead of one.
It will be seen that our invention relates to wheels to be used for any purpose
such for instance as those of vehicles of any description or for driving drums or
pulleys for belts.
•
Our invention consists of the improved design or construction of the wheel or
pulley hereinafter described and illustrated by means of which much greater
strength and rigidity is secured in an economical manner.
The arms or frame of the wheel or pulley is formed by a number (generally from
four to eight) of wrought iron or steel frames each of which is approximately
triangular in shape but the base is bulged outward until it is coincident with
one part of the periphery of the wheel while that part of the frame which
would have formed the apex of the triangle is truncated, and the ends are so
arranged that when the cast iron boss is formed it surrounds and encloses them.
Previously a sufficient number of frames have been fastened together by any
convenient means to form a complete circle or a half circle, and when the boss has
been cast on, an extremely strong and rigid structure is obtained. A suitable ring
of flat or other shaped section and of such diameter as to fit closely upon the
periphery of the framed structure, is now adjusted and riveted or otherwise firmly
attached to it & turned or otherwise truly shaped as required. In some cases
greater strength is secured by flanging one or both edges of the ring or periphery
or they may be flanged outwardly where such flanges are required for the purpose
of retaining a belt in position or for any other purpose.
The modifications necessary in the case of split pulleys or of pulleys cast in
halves, are obvious and easily understood.
In order that our invention may be more clearly understood we append drawings
hereto in which like letters refer to similar parts :-
Fig. 1 is an elevation of a solid wheel according to our invention.
Fig. 2 is an elevation of a split pulley.
Fig. 3 is a section taken through the band and frame shewing the mode of
construction we prefer.
Fig. 4 is a section of a form of spoke or arm.
Fig. 5 shews the shape of that part of the spoke or arm which is cast into
the boss.
A. indicates one of a number of frames constructed preferably of wrot iron of the
section shewn in Fig. 3, being composed of a web a and two flanges a' and when a
number of the flanges A have been bent to the approximately triangular shape
shewn, a sufficient number of them are placed together to form either a complete
pulley or whe 1 or any desired portion of such. They are then fastened together
by rivets or bolts in holes in the flanges a
This circular or half circular structure is then placed in a mould and a cast iron
or other suitable metallic boss B. cast round it of the form shewn in Fig. 1, for a
complete and solid wheel or pulley, but in the case of a split pulley (as shewn in
Fig. 2) or for a half pulley the boss B would be divided into two portions as shewn
and the balf bosses would have formed integrally with each, ears or extensions bl

page_text: and through holes 6 in such ears bolts would be passed for the purpose of fastening
the two halves firmly together. A plate of wrought iron or other suitable metal of
any desired width is then bent or rolled so as to form an annular ring, a band C
having about the same diameter as the structure formed by bolting together the
frames A, and the ring or band being placed upon the structure in such manner as
to encircle it as shewn, one is fastened to the other by bolts screws, rivets, c, or
other available mode of fastening. The whole wheel or pulley is then turned or
otherwise shaped true, bored and a keyway cut if necessary.
In some cases before turning the ring or band, we by means of a lathe or other
suitable mechanism flange the edge inwardly (as shewn in Fig. 3, in dotted lines)
so as to increase the strength and rigidity of the wheel or pulley.
For pulleys we sometimes flange one or both edges of the ring or band outwardly
so as to form the well known flanges used for the purpose of directing or guiding
the belt running on the pulley.
The ends of the spokes or arms which are cast into the boss are in general of the
shape shewn in dotted lines.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed we declare what we
claim is :-
1. A wheel pulley or drum formed by bolting or otherwise fastening together, a
number of iron or steel frames, casting a boss round part of such frames, and
attaching to such structure a ring or band of metal which forms an encircling rim
substantially as described.
2. In a wheel pulley or drum the combination of a number of frames fastened
together a boss cast round the inner ends of such frames and a rim bolted or
otherwise fastened to such structure substantially as described.
3. A split or divided wheel or pulley substantially as shewn and described with
reference to Fig. 2.
4. In wheel pulley or drum such as herein before described and claimed flanging
the edge or edges of the rims substantially as described.
5. In a wheel pulley or drum forming the arms and frame of iron or steel of
section shewn in Fig. 4.
Dated this 8th day of October 1894.
WILLIAM J. MUNDEN,
106, Priory Park Road, Kilburn, N.W., Agent for the Applicants.