Improvements in or relating to Heel Scouring Machines used in the Manufacture of Boots and Shoes, applicable also for other similar purposes.
Year: 1892

page_text: Date of Application, 17th Oct., 1892
Complete Specification Left, 15th July, 1893-Accepted, 9th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in or relating to Heel Scouring Machines used in the
Manufacture of Boots and Shoes, applicable also for other similar
purposes.
We, WILLIAM ROBERT MUDD and ALFRED POCHIN of Newarke Street,
Leicester, Boot and Shoe Engineers do hereby declare the nature of this invention
to be as follows:-
This invention has reference to heel scouring machines used in the manufacture
of boots and shoes and is applicable also for other similar purposes.
In heel scouring machines of ordinary construction, the emery paper or cloth is
mounted upon wooden wheels formed in two parts and the ends of the emery cloth
strips are gripped between the adjacent faces of the two parts of the wheel.
.
By this method the emery paper or cloth soon wears out at the juncture and an
irregular surface is also formed at the point where the two parts of the wheel are
connected.
According to our invention we obviate these disadvantages by employing a ring
of india-rubber or other resilient or clastic material, which by preference is formed
of sponge rubber, but which may be tubular, and filled with air or gas under
compression, or otherwise suitably constructed so that when a circular or endless
piece of emery paper or cloth has been placed round its circumference it may be
gripped or tightened by suitable means between two conveniently shaped discs, or
their equivalents, thereby causing a flattening out or expansion of the elastic
emery carrying ring and ensuring the tight fitting of the emery paper or cloth
thereon.
A scouring or similar wheel constructed as described will wear longer and
present a more uniform scouring surface than those at present employed for the
purpose.
Dated this 17th day of October 1892
W. P. THOMPSON & BOULT,
Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Heel Scouring Machines used in the
Manufacture of Boots and Shoes, applicable also for other similar
purposes.
We, WILLIAM ROBERT MUDD and ALFRED POCHIN of Newarke Street,
Leicester, Boot and Shoe Engineers 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 has reference to heel scouring machines used in the manufacture
of boots and shoes and is applicable also for other similar purposes.
In heel scouring machines of ordinary construction the emery cloth is mounted
upon wooden wheels formed in two halves or parts, being divided transversely, and
the ends of the emery cloth strips are gripped between the adjacent faces of the
two parts of the wheels.
By this method the emery cloth soon wears out at the juncture and an irregular
surface is also formed at the point where the two halves of the wheel are
connected.
According to our invention we obviate these disadvantages by employing a ring

page_text: of indiarubber or other resilient or elastic material, which by preference is formed
of sponge rubber but which may be tubular and filled with air or gas under
compression, or otherwise suitably constructed so that when an endless or circular
piece of emery cloth has been placed round its circumference it may be gripped or
tightened by suitable means between two conveniently shaped discs or their
equivalents thereby causing a flattening out or expansion of the elastic emery
carrying ring and insuring the tight fitting of the emery cloth thereon.
A scouring wheel constructed as described will wear longer and present a more
uniform surface than those at present employed for the purpose.
Referring to the accompanying drawings,
Figure 1 is a view partly in section and partly in elevation of a scouring wheel
or device constructed according to our invention.
Figures 2 and 3 are sectional views of one half of a scouring wheel constructed
according to modifications.
Referring to Figure 1, A represents a rubber ring upon the circumference of
which an endless band or strip of emery cloth B is placed as shown.
In order to insure the tight fitting of the emery cloth on the rubber ring,
the latter is clamped firmly between two discs or plates C D carried on the usual
shaft E.
The plate C is connected to the shaft E by a screw C³ passing through a collar C¹
of the former and the plate D is tightened against the rubber ring A by a
nut F on the screwed end of the shaft E, bearing against the collar D' of the said
plate D.
Each of the clamp plates is provided with an inwardly projecting lip or
flange C and D² respectively which fit into grooves on each side of the rubber
ring A.
By tightening the nut F on the shaft E the plate D is moved relatively nearer
the plate C thereby gripping the rubber ring A between them and causing it to
expand within the emery band B and hold the latter securely in position.
In the modification shown in Figure 2 the plate C is constructed with a projecting
flange C adapted to fit into the recess formed between the upper and the seat of
the heel of a boot or shoe and thus form a guide to keep the scouring ring in
position on the heel thereof during the time the operation of scouring is being
performed.
Figure 3 illustrates a pneumatic scouring ring, A¹ being a preferably tubular
india rubber ring filled with air or gas under compression.
This ring may be provided with a filling tube A³ passing through an opening in
the plate D and in which may be fitted any of the well known forms of non-return
air valves such for instance as are used with pneumatic tyres for cycle wheels and
the said tube may be inflated by any suitable pump or inflator such are used to
fill the tyres before referred to.
In other respects than those mentioned the construction of Figures 2 and 3 and
the mode of fastening on the shaft E is identical with that described with reference
to Figure 1.
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. In a heel scouring machine the use or employment of an indiarubber or other
elastic emery carrying ring substantially as described.
2. In a heel scouring machine the use or employment of an emery carrying ring
inflated with air or gas under compression substantially as described.
3. In a heel scouring machine the combination with an elastic emery carrying
ring of clamp plates and means for tightening the latter against the said ring
substantially as and for the purpose described.
4. In a heel scouring machine the combination with an elastic emery carrying
ring of clamp plates CD projecting lips or flanges thereon, adapted to fit into

page_text: grooves on the said ring and nut F for fixing the said plates in position on the
shaft E substantially as and for the purpose described.
5. The improved emery carrying ring for heel scouring machines constructed,
arranged and operating substantially in the manner described and illustrated in the
accompanying drawings.
W. R. MUDD.
ALFRED POCHIN.
Dated this 14th day of July 1893.
W. R. MUDD.
ALFRED POCHIN.
0
Witness:
E. NORTH LEWIS,
Berridge Street Chambers,
Leicester.
W. P. Thompson & Boult,
Agents for the Applicants.