An Improved Apparatus in connection with Friction-gear for Driving Machinery.
Year: 1890

page_text: Date of Application; 10th Jan., 1890
Complete Specification Left, 9th Oct., 1890-Accepted, 10th Jan., 1891
TRUVIDIONAL OF MOTIVATION
An Improved Apparatus in connection with Friction-gear for
Driving Machinery.
We EDWARD MARSHALL of 279 Camden Street Birmingham in the County of
Warwick Mechanical Engineer and CHARLES BURGON of Malin Bridge Sheffield in
the County of York Manufacturer do hereby declare the nature of this invention to be
as follows:
This improvement is applied in what is known as friction driving gear for actuating
what is known as machines for shearing sheep, clipping horses, drilling holes and
making ornamental scroll work etc. said improvement applying to what we term the
throwing in and out of gear motion and is as follows:-We use a lever bracket
attached to the most convenient part of the machine at the end of which said bracket
we form a boss into which said boss we place the end or shank of what we call a
circular disc or section of a circular disc to which disc we attach a suitable taper or
other shaped cam with suitable divisions to regulate the pressure as required, the
aforesaid cam being thrown in and out of gear by a suitable hand-lever or wheel.
Dated this 8th day of January 1890.
EDWARD MARSHALL.
CHARLES BURGON.
COMPLETE SPECIFICATION.
An Improved Apparatus in connection with Friction-gear for
Driving Machinery.
We MARY ANN MARSHALL of Earlswood Place Narraway Street Birmingham
Widow and Administratrix of the late Edward Marshall, formerly of 279 Camden
Street Birmingham in the County of Warwick, but since of Malin Bridge Sheffield in
the County of York Mechanical Engineer, and CHARLES BURGON of La Plata Works
Malin Bridge Sheffield Manufacturer 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 writing, and on reference to the
accompanying sheet of drawings:
-
This improved apparatus is intended to be applied to and used in what is known as
friction driving gear for actuating machines, such as for shearing sheep, clipping
horses, drilling holes, and making ornamental scroll-work &c., this invention applying
to what we term the throwing in and out of gear motion; and in carrying the same
into effect we use a lever bracket attached to the most convenient part of the machine,
at the end of which bracket we form a boss into which boss we place the end or shank
of a circular disc, or section of a circular disc, to which we attach a taper or other
shaped cam with divisions in it to regulate the pressure as required, the said cam
being thrown in and out of gear by a suitable hand lever, or wheel.
In order however that the carrying out of this invention in practice may be fully
understood, it is illustrated on the accompanying sheet of drawings, the same being
marked with figures and reference numerals corresponding with those in the following
description:
Figure 1, represents the friction gear arranged (for example) for connection to a
sheep shearing or clipping apparatus, and Figures 2, to 13, are separate views of
the details or component parts of the friction gear apparatus shown in Figure 1, as
complete.
Figure 2, is a front view of the friction wheel 9, and Figure 3, a side view of the
same mounted on its spindle 9¹.

page_text: Figure 4, comprises and shows front and top views of the friction cone 8, and
Figure 5, is the cone spindle 8'.
Figure 6, is a front view of the swivel bracket 11, in which the cone spindle and
cone are fitted and work, and Figure 7, is a back view of the bracket 11.
Figure 8, is a side view of the lever bracket 1, and Figure 9, a back view
thereof.
Figure 10, is a side view of the dome pillar or support 12, (with dome and flange 13)
which, in the way shown in this figure, supports the friction gear when the dome
pillar is bolted to a wall or any other convenient place.
Figure 11, is a front view of the dome and flange 13.
Figure 12, comprises and shows side views of the pluminer block 14, and the cover
of the same 15, and Figure 13, comprises and shows back views of the plummer block
and its cover.
In Figures 1, and 12, 16 is the bearing part in which the dome pillar or support 12,
in Figure 10 fits.
Figure 14, shows the circular disc as applied to throw the friction gear in and out
of action.
Figure 15, shows the front or face of the disc with divisions therein to regulate the
pressure necessary to work the friction cone; and
Figure 16, shows a hand lever provided for throwing the friction cone in and out
of gear.
The lever bracket 1, is attached to the machine as shown at Figure 1; at the end
of the bracket a boss 2, is formed into which is placed the end or shank of a circular
disc 3, (or a section of a circular disc) to which is attached a taper or other suitably
shaped cam 4, (which cam is shown separately at Figures 14, and 15,) with divisions 5,
made thereon to regulate the pressure as required. The cam 4, is thrown in and out
of gear by a hand lever 6; or if desired a wheel may be applied and used for such
purpose. 7, is a cord which is attached to the hand lever 6, and on being pulled down
it will operate the cain and put the friction cone 8, in action with the friction wheel 9.
10, is another cord which on being pulled will stop the action of the machinery.
By the adoption of this cam or disc motion the flat springs (for example) which so
often break and so stop the shearer until another spring (or springs) can be fitted in
the apparatus, are dispensed with.
The cam arrangement for operating the friction gear is so fitted as to be nearly
automatic in its action and will adjust the friction wheel to the main bevel driving
wheel with the same pressure when the surface of the friction wheel gets worn.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
The novel and special construction, combination, and arrangement of the working
parts constituting a more efficient and useful throwing in and out of gear motion in
friction driving gear, and the employment thereof for actuating or driving readily
movable or portable machinery, substantially as herein before set forth and as
illustrated on the accompanying drawing, or any equivalent modification thereof.
Dated the 5th day of January 1891
BRISTOW HUNT, R.P.A.,
Aldine Chambers, Sheffield, Agent for the Applicants.