Improvements in the Construction of Sand Paper Carrying Rolls, Polishing Rolls, and the like used in the Scouring and Finishing Processes of Boots and Shoes.
Year: 1894

page_text: Date of Application, 3rd Aug., 1894
Complete Specification Left, 25th Apr., 1895-Accepted, 1st June, 1895
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Sand Paper Carrying Rolls,
Polishing Rolls, and the like used in the Scouring and Finishing
Processes of Boots and Shoes.
We, ALFRED POCHIN, trading as The Standard Engineering Co. of 43 Welford
Road, Leicester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager of the same address, in the employ
of the above, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improvement in the construction of rolls or flexible
cylindrical pads used for carrying sand-paper for buffing or scouring the soles and
heels of boots, or used in the finishing processes of the said goods.
The present method of constructing the said rolls consists in alternating a number
of facially spiked and centrally bored metal rings or washers between a series of
similarly bored felt rings and tightly connecting the same together by means of
screws passing through from the first metal ring to the outer or last metal ring.
It is found by experience that rolls thus built have a tendency to warp towards
the centre and also that when taken apart to renew or adjust the felt rings the bore
of the rolls requires to be "trued or turned several times before it will fit the
shaft upon which it is carried for the purposes before mentioned.
"
Our invention has for its object to overcome the disadvantages named and to
construct a roll for the purposes hereinbefore referred to which shall be firm and
solid in its build, but which when removed from its actuating shaft will admit of
the felt rings being more readily and easily removed, renewed and connected
together than the present well known rolls admit of and will always be in a
condition to fit over the actuating shaft without the necessity of having recourse to
the "trucing" processes already described.
According to this invention the felt rings or discs may be alternated with
facially spiked washers or discs having a central opening and a keyway and passed
over a tube the bore of which fits the shaft upon which the scouring or finishing
roll is carried.
The said tube may have a fixed and a loose end or loose ends facially spiked if
desired, and the tube may be furnished with a longitudinal groove or keyway and
a key therein which by preference fits the before mentioned washers and also
embeds in the felt rings and the latter inay then be tightened or pressed towards
each other by screwing one or both of the ends towards the centre of the tube
and fixing the said ends in position by transverse set-screws, lock nuts or other
means.
Dated this 3rd day of August 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicante.

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction of Sand Paper Carrying Rolls,
Polishing Rolls, and the like used in the Scouring and Finishing
Processes of Boots and Shoes.
We, ALFRED POCHIN, trading as The Standard Engineering Co. of 43 Welford
Road, Leicester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager, of the same address, in the
employ of the above, 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 an improvement in the construction of rolls or flexible
cylindrical pads used for carrying sand-paper, or similar abrading material for
buffing or scouring the soles and heels of boots, or used in the finishing processes of
said goods.
The present method of constructing the said rolls consists in alternating a
number of facially spiked and centrally bored metal rings or washers between a
series of similarly bored felt rings and tightly connecting the same together by
means of screws passing through from the first metal ring, to the outer or last
metal ring.
It is found by experience that rolls thus built have a tendency to warp towards
the centre, and also that when taken apart to renew or adjust the felt rings, the bore
of the rolls requires to be "trued " or turned several times before it will fit the
shaft upon which it is carried, for the purpose before mentioned.
Our invention has for its object to overcome the disadvantages named and to
construct a roll for the purposes hereinbefore referred to which shall be firm and solid
in its build, but which when removed from its actuating shaft will admit of the felt
rings being more readily and easily removed, renewed and connected together than
the present well known rolls admit of while our improved roll will always be in
condition to fit over the actuating shaft without the necessity of having recourse to
the "trueing" processes already described.
According to this invention the felt rings or discs may be alternated with
facially spiked washers or discs, having a central opening and a keyway and passed
over a tube, the bore of which fits the shaft upon which the scouring or finishing
roll is carried.
The said tube may have a fixed and a loose end, or loose ends, facially spiked if
desired, and the tube may be furnished with a longitudinal groove or keyway and
a key therein which by preference fits the before mentioned washers, and also
embeds in the felt rings.
The invention will be more fully understood upon reference to the accompanying
drawings in which
Figure 1. is a view half in elevation and half in longitudinal section of a sand-
paper carrying roll, or buffing roll, constructed in accordance with this invention.
Figure 2. is a transverse section thereof.
A represents a tube or hollow shaft which may be placed over the rotating
shaft of a buffing or scouring machine, and be secured thereon by lock nuts or in
any of the well known ways.
The tubular shaft A has at one end a collar A' formed preferably integrally
therewith, and is also provided with a longitudinal keyway shown in dotted line in
Figure 1. and key A therein. The collar A' is provided at intervals on its inner
face with spikes A³.
To build up the buffing roll, a ring B of flexible material, preferably felt, is
pressed close up to the collar A' so that the spikes are embedded therein.

page_text: A metal ring or washer C. having a keyway therein to fit over the key A' and
furnished also at intervals with spikes C¹ on each of its faces, is next placed over
the tube A and pressed close up against the felt ring B, so that the spikes on its
face become embedded in the opposite side of the felt ring.
A further felt ring is then placed over the tube and then a spiked washer
and so on alternating the felt rings B and spiked washers C until finally a loose
collar D is placed on the opposite end of the tube and secured in position thereon
by set screws D' which pass through openings therein and into the thickened end A*
of the tube A thus securing the whole of the felt rings and washers on the tubular
shaft.
The sandpaper or other abrasive covering B¹ fits over the felt rings in the usual
way,
but to more clearly show the construction of the roll is shown as covering one
half only of the latter.
Although the roll is much more solidly built with the felt rings B and metal
washers Calternating; yet we do not confine ourselves to this precise order, as a
metal washer may be placed between every second or third felt ring if desired.
From the hereinbefore described construction it is obvious that as the whole of the
felt rings are carried upon a metal tube or hollow shaft A the possibility of the
buffing roll warping is obviated and at the same time the said tube can always be
readily placed on, and taken off the rotating shaft of the machine for the renewal
of the felt rings with the certainty that it will always fit the shaft.
Further, the said tube and washers being provided with keyways_and_a
therein any movement of the felt rings independently of the tube and washers is
avoided.
key
It is obvious that in lieu of the keyway and key A' on the said tubular shaft A,
the latter may be formed with one or more longitudinal ribs or grooves which may
fit in correspondingly shaped openings or projections on the metal washers so as to
prevent the latter rotating on the said shaft.
Having now particularly described and ascertained our invention, and in what
manner the same is to be performed, we declare that what we claim is :--
1. In a buffing or scouring roll the combination of a tubular shaft, collars thereon,
a series of felt or similar flexible rings provided with an abrasive covering,
interposed spiked washers and means whereby the said washers are prevented
moving independently of the said shaft for the purpose described.
2. In a buffing or scouring roll the combination of a tubular shaft, collars
thereon, a series of spiked washers keyed on the said shaft and a series of flexible
rings interposed between the said washers and provided with an abrasive covering
substantially as for the purpose described.
3. A buffing or scouring roll consisting of the parts constructed, arranged, and
operating substantially in the manner and for the purpose described and illustrated
in the accompanying drawings.
ALFRED POCHIN.
FRANK H. POCHIN.
HENRY ADDISON.
Witness:
E. H. Lewis,
Berridge Street Chambers, Leicester.
ALFRED POCHIN.
FRANK H. POCHIN.
HENRY ADDISON.
W. P. Thompson & Boult,
Agents for the Applicants.