Improved Perforator for Belts and the like.
Year: 1895

page_text: Date of Application, 23rd Nov., 1895-Accepted, 28th Dec., 1995
Improved Perforator for Belts and the like.
We, HENRY SCHOFIELD, of Stannington, in the County of York, Engineer, and
PETER SMITH, of 2 Canning Street, Bury, in the County of Lancaster, 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:-
Our invention relates to the construction of a perforating machine to be operated
by hand, and arranged more particularly for making holes through large sizes of
belting and the like, with ease and accuracy.
The annexed sheet of drawings represents the apparatus in the form which we
prefer.
Fig. 1, is an elevation of the complete machine.
Fig. 2, is a front elevation of the perforating tool.
Fig. 3, is a section of same.
The machine or apparatus consists of a body A, having a base B, upon which it
may stand, and L, are lugs by which it may be secured to a bench, a portable belt
stretcher, or the like either permanently or otherwise as may be desired.
The upper part at A2, is provided with an internal screw thread to receive a
correspondingly screwed spindle C, upon the top of which we fix a handle D, by
which the spindle is turned in either direction; and below the handle we place one
or more adjustable lock nuts, for the purpose of regulating the length of downward
travel of the spindle. E, is a gauge by which the distance of the hole to be
perforated from the edge of the belt is regulated.
It consists of a plate E, provided with a slot F, and fitting against a flat portion
of the base B, and of the support_G. It is capable of being moved horizontally
so as to open or close the gap H, and is secured in any position by the set
screw J.
The nose of the spindle is made to hold the perforating tool K, which is secured
in position by the thumbscrew S.
The perforator is shown more clearly in Figs. 2, and 3, it is constructed like a
punch, the upper part being made to fit into the nose of the spindle and the lower
part tapering down to the size of the required hole or perforation.
The inside is bored out so as to allow of the edge being sharpened, and the
tubular opening K2, is gradually enlarged upwards to permit the easy passage of
the plug cut out from the belt which finally escapes through the curve and from
the opening K³.
This peculiar construction of the interior of the perforating tool, enables the
operation to be accomplished with the smallest amount of resisting force and
consequently with the least possible application of power.
Directly under the perforating tool a recess is formed in the base B, and a bed
of some solt metal or alloy such as lead and tin is inserted to prevent damage to
the cutting edge of the tool when it passes through the belt, or the like.
The perforating tool has two simultaneous motions, one being rotary, and the
other vertical.
The perforator may if desired be attached to a belt stretching frame or other
like frame, and be adjusted to the position for punching by means of a screw as will
be well understood, but we prefer to construct it as shown.

page_text: 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. A belt perforating machine arranged and constructed as hereinbefore
described and shown.
2. A perforating machine for belts and the like, having a screw threaded spindle
and a perforating tool substantially as herein before described, in combination with
a belt stretching frame, or other like frame.
3. A belt perforating tool having its interior gradually enlarged from its cutting
edge, and curving towards the exit as hereinbefore described and as shown
in Figs. 2, and 3, of the drawings.
Dated the 15th day of November 1895.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicants.