Improvements in or relating to the Manufacture of Puffs for Boots and Shoes, applicable also for other similar purposes.
Year: 1895

page_text: Date of Application, 27th Aug., 1895
Complete Specification Left, 2nd May, 1896-Accepted, 6th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Manufacture of Puffs for Boots
and Shoes, applicable also for other similar purposes.
We ALFRED POCHIN, trading as the Standard Engineering Co., Welford Road,
Leicester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager, of the same address do hereby
declare the nature of this invention to be as follows:-
This invention has reference to the manufacture of puffs for boots and shoes and
is also applicable for the manufacture of other similar articles such as toe-caps,
heel stiffeners or counters.
Heretofore puff machines in use have only been able to produce one puff at each
operation and this has not been in a complete condition for use but has required one
of its edges bevelling by hand after it has left the machine.
•
The present invention consists of a machine capable of producing a blank from
which two puffs may be obtained; the said invention includes means also for cutting
the said blank in such a manner as to form the two puffs and also to slightly bevel
the edge of each puff along the line ou which it is cut.
The operation of cutting or dividing the blank to form two puffs and also of
bevelling the edge formed thereby, may be done in one operation.
According to this invention the leather from which the double-puff blank is to be
produced, is, by means of a plunger operated by a treadle or other means, forced
or pressed through an opening in a bed or plate, in the form of a bulge, which
latter is removed by a sliding knife actuated by a hand lever or other means, the
said bulge after being removed by the knife forms the blank which is elliptical
or oval shaped, being the preferred shape of the opening in the plate before
mentioned.
This blank when divided along its major axis forms two puffs.
The knife which removes the bulge to form the herein mentioned blank may also
be constructed in such a manner as to cut or divide the blank into two portions and
also to bevel the edge of such two portions along the dividing line.
The plunger is formed with a curved face and is of the same shape as the blank
to be produced.
Although the invention has been herein described in reference to puffs it is also
applicable for use in the manufacture of toe-caps, heel stiffeners and the like.
Dated this 26th day of August 1895.
BOULT & WADE,
Agents for the Applicants.
Improvements in or relating to the Manufacture of Puffs for Boots
and Shoes, applicable also for other similar purposes.
We ALFRED POCHIN, trading as the Standard Engineering Co., Welford Road,
Leicester, Makers of Boot and Shoe Machinery, FRANK HOWARD POCHIN,
Draughtsman, and HENRY ADDISON, Manager, of the same address do hereby
declare the nature of this invention and in what manner the same is to be
Prins d

page_text: .
performed to be particularly described and ascertained in and by the following
statement :-
This invention relates to machines for the manufacture of puffs for boots and
shoes such machines being also applicable for use in the production of other similar
articles such as toc caps, heel stiffeners or counters.
The use hereinafter of the term puff is, for the sake brevity, intended to include
the other articles named.
Puff cutting machines heretofore used have only been able to produce one puff
at a time, and this has not been in a completed condition and ready for use, but has
required one of its edges bevelling by hand after it has left the machine.
The present invention comprises such improvements in machines of the character
described as will enable a blank to be produced and two puffs obtained therefrom.
The invention includes means for simultaneously cutting and dividing the said
blank and also of bevelling the edges thereof, all of which processes, heretofore
performed separately, may by means of our improvements be performed in one
operation.
Our invention is specially applicable to the type of machine in which a piece of
leather, usually the heel seat of a sole, is, by means of a plunger, forced in the
form of a bulge, through an opening in a plate, the said bulge, being removed or
cut away by a sliding knife and thus forms a blank from which a puff is subsequently
made by the ordinary method.
The invention will be fully understood from the following further description in
reference to the accompanying drawings wherein,
Figure 1 is a longitudinal section and Figure 2 an underside plan of a puff cutting
machine embodying our improvements.
Figures 3 to 6 are perspective views of knives (shown with rear part of blade
broken off) for use with the said machine.
A represents the framing, B a bed plate therein, C an opening or aperture in the
latter, equivalent in size to two puff blanks, D a plunger for pressing or bulging
the leather through the aperture.
E is a lever by which the plunger is depressed, the said lever being fulcrummed
between two lugs D' on the framing and connected at the other end to a treadle
underneath the bench which carries the machine.
Upon the treadle being depressed, the lever E, normally in contact with the
shank D2 of the plunger (as shown in dotted line in Fig. 1), depresses the latter
and forces the leather through the aperture in the form of a protruding bulge.
F. is a spring encircling a rod F connected to the plunger D and serves to raise
the latter after it has been depressed by the lever E.
G is the knife carrier formed with inclined sides and slidable in guideways
having correspondingly shaped sides in the framing and immediately under the
bed plate B.
In this carrier the knife is fixed by screws and at the forward end is the
usual roller H which moves in advance of the knife and prepares the leather for
cutting.
A lever J pivotted at one end J 3 to a lug J¹ on the framing and also connected
by a screw J2 to the carrier G, is employed to move the carrier and knife past the
aperture in the bed plate to remove the bulge of leather or puff blank.
So far (with the exception of the aperture) the machine is and may be of the
usual construction and operated in the well known manner.
For the purpose of increasing the output of the machine by producing a two
puff blank and dividing it at one operation the aperture is, as before stated, increased
in size to that of a double puff blank, and the knife as shown in Figs. 1, 2 and 3
provided with two cutting edges K K' one transverse or angularly disposed to the
other, the horizontal edge K serving to slice or cut the double puff blank from
the leather and the other or transverse edge K' to divide it into two parts along its
major axis at the same time and in a single operation.
For the purpose of also bevelling or skiving the edge of each puff as it is

page_text: formed, the dividing blade or edge may be disposed angularly to the cutting edge
or blade so that not only will the double puff blank be divided along its major axis
but the edge of each puff along the line of division will also be bevelled.
In the modification shown in Figure 4, K represents the cutting edge and K¹ the
dividing and bevelling edge, the latter being fixed diagonally to the other blade so
that in dividing the leather blank a bevelled edge is produced upon each of the
two puffs thereby formed.
Figure 5 shows a knife with a cutting edge K and a V shaped dividing and
bevelling edge K¹.
In Figure 6 the dividing and bevelling knife consists of an inverted V shaped
blade K
In the last two named Figures 5 and 6, each side K2 K3 of the V blade K¹ is
sharpened and in the knife represented in Figures 3 and 4 the front end only has a
cutting edge.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. The construction of a machine of the character described in which a leather
blank is produced and simultaneously divided substantially as and for the purpose
specified.
2. The construction of a machine of the character described in which a leather
blank is produced and simultaneously divided and its edges bevelled substantially
as and for the purpose specified.
3. In a puff cutting machine the use or employment of a knife for simultaneously
cutting and dividing, or simultaneously cutting, dividing and bevelling the edges
of, the puff produced.
4. In a puff cutting machine the use or employment of a knife having two
cutting edges one of which is disposed angularly to the other for the purpose
described.
5. In a puff cutting machine the use or employment of knives substantially as
illustrated in Figures 3, 4, 5, and 6 of the accompanying drawings and for the
purpose described.
6. In a puff cutting machine the combination of a bed-plate, an aperture therein,
a plunger to press the leather through the said aperture in the form of a bulge, a
sliding knife to simultaneously remove and divide, or to simultaneously remove,
divide and bevel the edges of, the said bulge substantially as and for the purpose
described.
7. The improved machine consisting of the parts constructed, arranged and
operating substantially in the manner and for the purpose described and illustrated
in the accompanying drawings.
.
ሰኒ
ALFRED POCHIN.
FRANK HOWARD POCHIN.
Witness―
E. N. LEWIS,
Berridge Street Chambers,
Leicester.
ALFRED POCHIN.
FRANK HOWARD POCHIN.
Boult & Wade,
Agents for the Applicants.