Improvements in Machines for Marking or Pricking Leather and the like as a Guide for the Succeeding Operation of Stitching.
Year: 1896

page_text: Date of Application, 21st May, 1896
Complete Specification Left, 20th Feb., 1897-Accepted, 17th Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Machines for Marking or Pricking Leather and
the like as a Guide for the Succeeding Operation of Stitching.
MARSHALL HENRY PEARSON of Blue Boar Lane, Leicester, Engineer, and
PEARSON & BENNION, LIMITED of Blue Boar Lane, Leicester, Engineers, do
hereby declare the nature of this invention to be as follows:-
Our invention relates to machines for marking or pricking leather &c. as a guide
for the succeeding operation of stitching and consists of a suitably supported
spindle, carrying one or more circular discs with teeth formed in their periphery,
and a roller carried in suitable bearings and pressed towards the toothed discs by a
spring or weight.
On the spindle carrying the toothed discs we provide collars which form distance
pieces between the discs, when more than one of the latter are used, and also
regulate the depth of the pricking in the leather according to the difference in the
radii of the collars and discs.
The bearings supporting the roller are connected to a lever or treadle by means
of which the roller may be moved away from the toothed discs as required for
placing the leather &c. in, or removing it from the machine.
Suitable adjustable guides for the leather are provided.
MARSHALL H. PEARSON.
PEARSON & BENNION, LIMITED.
FRANK E. WHEELER,
Secretary for the Company.
Improvements in Machines for Marking or Pricking Leather and
the like as a Guide for the Succeeding Operation of Stitching.
We MARSHAL HENRY PEARSON of 16 Blue Boar Lane Leicester Engineer,
and PEARSON & BENNION LIMITED also of 16 Blue Boar Lane Leicester 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:-
Our invention relates to machines for marking or pricking leather and the like,
as a guide for the succeeding operation of stitching and has for its object the
construction of a machine in which the leather is passed between a suitably
supported roller, and a rotatable spindle carrying discs having in their periphery
teeth formed to suit the desired marking or pricking.
In the accompanying drawings
Fig. 1 is a front elevation of a machine made according to our invention.

page_text: Fig. 3 is a section shewing the arrangement of spring adjusting screw and nuts
for regulating the height of the roller.
Figs. 4 & 5 are two views of a toothed disc drawn to a larger scale than
Figs. 1. 2. & 3.
The spindle A which may be rotated by means of a crank or belt-driven pulley,
is supported by a bearing formed in the framework B, and the centre C, the
latter being movable endways to allow the discs A¹ and the collars A² being
removed from the spindle A.
Any number of discs A¹ may be used and they are held between the collars A'
by means of the nut A3 which is screwed on the spindle A and tightens the discs
and collars against the fixed collar A.
The discs A have cut in their periphery, teeth formed to suit the desired
marking or pricking and may be as shewn in Figs. 4 & 5, while the collars not-
only form distance pieces between the discs, but also regulate the depth to which
the teeth of the discs enter the leather &c. according to the difference in the radii
of the collars and discs.
The roller D is carried in a suitable frame D' which is prevented from turning
by the guide pin D and is pressed towards the toothed discs by the spring D³, the
pressure of the spring being adjustable by means of the screw D, while the locked
nuts D, limit the height to which the spring D³ can raise the frame D', thus
preventing the roller from coming into contact with the discs A¹ and injuring their
teeth.
A weighted lever may be substituted for the spring D³..
Suitable adjustable guides such as E E are provided.
When it is required to mark or prick a piece of leather &c., the roller D is
lowered by means of a lever or treadle attached to the hook D, the leather is
placed between the discs A¹ and the roller D, the latter being allowed to press the
leather upon the discs and cause their teeth to enter the leather until the surface
of the leather comes into contact with the collars. A³. The spindle A is then
rotated, thus causing the discs to draw the leather through the machine and at the
same time to form in the leather a series of holes or impressions corresponding
with the form and distance apart of the teeth in the discs A'.
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. In machines for marking or pricking leather and the like as a guide for the
succeeding operation of stitching the employment of discs with teeth corresponding
to the desired impression cut in their periphery as means for moving the leather &c.
through the machine as herein described, and as illustrated in the accompanying
. drawings.
2. In machines for marking or pricking leather and the like as a guide for the
succeeding operation of stitching the combination of discs, having teeth corre-
sponding to the desired impression cut in their periphery, with collars formed to
regulate the depth of the holes or marks in the leather &c. as herein described, and
as illustrated in the accompanying drawings.
3. In machines for marking or pricking leather and the like, as a guide for the
succeeding operation of stitching the employment of a spindle carrying toothed
discs in combination with a roller pressed towards the discs by a spring or weighted
lever as herein described and as illustrated in the accompanying drawings.
L
1007
MARSHALL H. PEARSON.
FRANK E. WHEELER,
Secretary for the Company.