An Improved Machine for Cutting Puffs for Boots and Shoes.
Year: 1890

page_text: Date of Application, 1st Dec., 1890
Complete Specification Left. 1st Sept., 1891-Accepted, 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
An Improved Machine for Cutting Puffs for Boots and Shoes.
I, FREDERICK SQUIRE, of 120, Hackney Road, in the County of Middlesex,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved machine for cutting puffs for boots and
shoes.
In carrying out my invention I provide a bed having formed therein an aperture
corresponding to the largest size of puff to be cut and beneath this aperture I provide
a presser or plunger designed to press or bulge the portion of leather necessary to
form a puff through the said aperture.
On the top of the said bed is a sliding carriage working in guides on the sides
or edges of the said bed. This carriage carries a knife (for cutting or skiving off
the portion of leather caused to project through the said aperture) and a roller
for compressing the leather during the cutting the said roller being in advance of
the knife.
The slide is moved to and fro by a lever or other suitable means.
When puffs of less size than the aperture are required I use a knife of a more
or less hollow or concave form.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Machine for Cutting Puffs for Boots and Shoes.
I, FREDERICK SQUIRE, of 120, Hackney Road, in the County of Middlesex,
Engineer, 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 :-
My invention relates to an improved machine for cutting puffs for boots and
shoes.
In carrying out my invention I provide a bed having formed therein an aperture
corresponding to the largest size of puff to be cut, and beneath this aperture I
provide a presser or plunger designed to press or bulge the portion of leather
necessary to form a puff through the said aperture.
On the top of the said bed is a sliding carriage working in guides on the sides
or edges of the said bed. This carriage carries a knife (for cutting or skiving off
the portion of leather caused to project through the said aperture) and a roller
for compressing the leather during the cutting, the said roller being in advance of
the knife.
The slide is moved to and fro by a lever or other suitable means.
To enable my invention to be fully understood I will describe the same with
reference to the accompanying drawings, in which :-
Figure 1 is a plan of my improved puff' cutting machine :
Figure 2 is a longitudinal section of the same; and,
Figure 3 is a transverse section on the line xx, Figure 2.
a indicates the bed of the machine, bis the aperture formed therein, and c is
the presser or plunger designed to press or bulge the leather through the said
aperture, as indicated by dotted lines in Figure 2.

page_text: It will be noticed by reference to Figures 2 and 3 that the bed a is formed
in two parts having a space between them for receiving the head of the plunger c,
the said bed being supported upon legs d, d adapted to be bolted to a table
or bench.
The shank e of the plunger c slides through a sleeve f, and is operated by means
of a lever g pivotted at in suitable lugs and entering at one end a slot i formed in
the shank of the plunger; the other end of the said lever g is connected to
a treadle or foot-lever beneath the bench upon which the puff cutting machine is
carried.
jis a spring surrounding a rod & secured to the plunger and serving to draw the
said plunger downwards after it has been raised by the means described.
I is the carriage sliding upon the bed a and , are the guides for the same,
the said guides, as shewn in the drawing, being formed integral with the upper part
of the bed.
m is the knife which is secured to the carriage by a screw m¹, and n is the
roller which is placed in advance of the knife, the said roller being located in a
recess n in the carriage and being acted upon by a spring o so as to hold it in
contact with the leather.
p is a bridge-piece having two studs p¹, pl projecting through the carriage so
as to bear upon the spring o, the said bridge-piece and studs being rendered
adjustable by means of a screw p² in order to allow of varying the pressure upon
the roller.
q is the lever by means of which the carriage is moved upon the bed, the said
lever being pivotted at r to one side of the bed and connected to a stud s upon one
side of the carriage by means of a link t.
As hereinbefore stated the aperture 6 in the bed corresponds with the largest
size of puffs which the machine is designed to cut; if it is desired to cut smaller
puffs the knife is made of concave or hollow form on the underside so as to cut at
a greater or less distance from the bed, or a plate u which forms the top of the
plunger may be substituted by a plate of less elevation so that the leather will not
be pressed so far through the aperture.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A puff cutting machine comprising a bed-plate having an aperture therein, a
plunger for forcing the leather to project through the, said aperture, a carriage
sliding in guides upon the said bed and carrying a knife for cutting such projecting
leather, and a roller, substantially as described.
2. The manufacture and use of the improved puff cutting machine hereinbefore
described and illustrated in the accompanying drawings.
Dated the 1st day of Sentember 1801
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant: