An Improved Machine or Tool for Bending Metal Pipes, Round, Flat, or Angle Iron.
Year: 1890

page_text: Date of Application, 23rd May, 1890
Complete Specification Left, 23rd Feb., 1891-Accepted, 4th Apr., 1891
PROVISIONAL SPECIFICATION.
An Improved Machine or Tool for Bending Metal Pipes, Round,
Flat, or Angle Iron.
I, ROBERT KELLY, Tool Manufacturer, of 32, Renshaw Street, Liverpool, in
the County of Lancaster, do hereby declare the nature of this invention to be as
follows :―
My invention consists of a handle or lever piece into which are fitted wheels freely
revolving on pins passing through their centres and attached to the handle or lever
piece, and such wheels to be either plain or shaped on their edges to suit the
material to be operated on. One of the centre pins would be fixed to a bedpiece
or otherwise secured, and this same pin by preference would become a centre round
which the lever piece would revolve. Then the material to be operated on being
placed between the wheels, and secured at one end, the lever would be drawn over,
the free end of the material would give way and be bent to the desired form.
Dated this 22nd day of May 1890.
ROBERT KELLY.
COMPLETE SPECIFICATION.
An Improved Machine or Tool for Bending Metal Pipes, Round,
Flat, or Angle Iron.
I, ROBERT KELLY, of 32, Renshaw Street, Liverpool, in the County of
Lancaster, 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 :-
The object is to provide a machine or tool whereby metal pipes, and round, flat,
or angle iron or metal may be readily, accurately and efficiently bent into any
required curve.
A machine or tool under my invention consists of a handle or lever into which
are fitted wheels free to revolve on pins passing through their centres and also
through the handle or lever. The said wheels have plain or shaped edges so as to
suit the material operated on. One of the centre pins is fixed to a bed plate or
other stationary structure whilst the other pin is secured to the handle or lever.
The bed plate is provided with an adjustable cramp piece. The material to be
bent is placed between the edges of the wheels, one end is secured in the cramp,
and the handle or lever is turned around the stationary centre so that the free end
of the material is bent to the desired extent around one of the wheels.
DESCRIPTION OF THE DRAWINGS.
Fig. 1. is a plan, and Fig. 2, is an elevation of a machine or tool constructed in
accordance with my invention.
a is the handle or lever formed with a jaw b, into which are fitted wheels c and d.
The wheels c and d are free to revolve on pins e and f. The pine is secured to the
bed plate g, and passes through the jaw b, which latter is held in position by the
nut . The jaw may be made with a slot i to allow of ready removal of the handle
or lever. The pin fpasses down through the jaw b, and is made with a head j, which
prevents it from falling out. kis a slot in the bed plate g, in which a cramp is
secured in any desired position by means of a nut m. The cramp holds one end of

page_text: the material to be bent by means of a nut n or a lip and cam piece may be used
instead. If desired one or both of the pins e and f, may be adjustable lengthwise
in slots or a number of pin holes o in the jaw b, so that the distance between the
centres of the pins may be varied to allow of the use of larger or smaller wheels.
The sizes of the wheels are varied according to the curvature required.
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 :-
A machine or tool for bending metal constructed substantially as herein set
forth.
Dated this 21st day of February 1891.
ROBERT KELLY.