Improvements in and relating to Packing-can or Tin Opening Machines.
Year: 1896

page_text: Date of Application, 11th June, 1896--Accepted, 25th July, 1896
COMPLETE SPECIFICATION.
[Communicated from abroad by WILLIAM N. ANDERSON, of Mission Street,
San Rafael, Marin County, California, U.S.A., Manufacturer.]
Improvements in and relating to Packing-can or Tin Opening
Machines.
I, REGINALD WALTER BARKER of Monument Chambers, King William
Street, London, England, Patent Agent 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 :-
This invention relates to improvements in and relating to packing-can or tin
opening machines and my invention consists in the special combination of parts as
will be hereinafter described.
The accompanying drawing illustrates my invention in perspective side elevation,
showing a packing tin or can in position to be opened.
In carrying out my invention I employ a suitable and preferably hollow base-
plate A which is formed or provided with a clamp B having a screw 6 whereby the
machine may be readily attached to a bench or table. The upper part of
the clamp B is formed with an extension C having a preferably hexagonal or other
angular aperture formed therein in which a vertically disposed rod D is adapted to
slide, said rod fitting within said angular aperture so as to be prevented from
turning therein and the extension C is provided at a suitable part with a set
screw c whereby the rod D may be set and clamped at any desired height. The
top end of the rod D is formed with a horizontal bearing E adapted to receive
the circular stem f of a tool-stock F said bearing E being also provided with a set
screw so that the stem f may be fixed at any desired part and consequently the
tool-stock firmly held at any desired distance from the rod D, and if desired, at
any necessary angle to it.
Immediately over the base-plate A I provide a centric chuck G whose jaws are
adapted to grip the cans or tins to be opened said chuck being adapted to be
revolved by turning a crank handle H supported on a suitable spindle carried by
bearings in the body of the clamp B said spindle being provided on its inner end
with a pinion gearing with teeth K formed on the back of the chuck G.
The tool-stock F carries a suitable tool holder L capable if desired of adjustment
and the arrangement of all the parts is such that when a can or tin is gripped in
the chuck the cutter M entered either at the top or side of the tin and the
handle H rotated the tin or can will be opened to permit of the contents being
removed. My improved machine on account of the parts being capable of
adjustment as described, is adapted to open any size can or tin within its compass.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
In a machine for opening tins or cans the combination of a hollow base-plate, a
clamp B provided with a screw b and formed with an extension C having an
aperture adapted to receive a rod D said rod D being capable of being set by
means of a set screw c said rod D being formed with a horizontal bearing E
adapted to receive the circular stem f of a tool-stock F said bearing E being
provided with a set screw c whereby the said stem f may be fixed at any suitable

page_text: position, a centric chuck G formed with teeth K with which a pinion gears said
pinion being carried by a spindle carrying at its opposite end a crank handle all for
the purposes and substantially as described and illustrated.
Dated this 11th day of June 1896
REGINALD W. BARKER.