A New and Improved Machine for Grinding or Whetting Chisels or other Edged Instruments.
Year: 1894

page_text: Date of Application, 16th Feb., 1894
Complete Specification Left, 10th Nov., 1894-Accepted, 29th Dec., 1894
PROVISIONAL SPECIFICATION.
A New and Improved Machine for Grinding or Whetting Chisels or
other Edged Instruments.
ARTHUR FRANK DENISON, No. 7 Emsley Terrace, Hunslet, Leeds, Mechanical
Engineer do hereby declare the nature of this invention to be as follows :—
I
My invention is designed to simplify the construction of machines for grinding &
whetting the edges of chisels and other sharp instruments. For this purpose
make a conical stand or base of machine, I mount through the centre of the said
stand or base a shaft, in a perpendicular position, bearing a disc of varied dimensions
in diameter, to revolve horizontally above the said stand, and made to contain a
stone or other compositions suited for whetting or grinding purposes.
I also fit a
shaft in a horizontal position, with one end to fit into the said conical stand, and to
run in a pedestal which is fixed on the said conical stand. On this shaft I place a
pulley with the surface of the said pulley to bear under the before named disc, the
disc being faced on the under side with leather or other substance to cause friction,
the disc being brought to bear on the surface of the pulley by means of lock nuts,
at the bottom end of the perpendicular shaft underneath the stand or base. I
place fast & loose pulleys on the outer end of the horizontal shaft to give motion
to the machine.
Dated this 14th day of February 1894.
COMPLETE SPECIFICATION.
A New and Improved Machine for Grinding or Whetting Chisels or
other Edged Instruments."
ARTHUR FRANK DENISON No. 7 Emsley Terrace, Hunslet Leeds, Mechanical
Engineer, do hereby déclare 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 is designed to simplify the construction of machines for grinding &
whetting the edges of chisels and other sharp instruments. For this purpose I
make a conical stand or base of machine A, I mount through the centre of the said
stand or base A a shaft B in a perpendicular position bearing a disc C of varied
dimensions in diameter to revolve horizontally above the said stand A and made to
contain a stone D or other compositions suited for whetting or grinding purposes.
I also fit a shaft E in a horizontal position with one end to fit into the said conical
stand A and to run in a pedestal F which is fixed on the said conical stand A, on
this shaft EI place a pulley G with the surface of the said pulley to bear under
the before named disc C, the disc being faced on the under side with leather H or
other substance to cause friction, the disc C being brought to bear on the surface of
the pulley G by means of lock nuts at the bottom end of the perpendicular
shaft B underneath the stand or base A. I place fast and loose pulleys on the
outer end of the horizontal shaft E to give motion to the machine. I also place a
Laine a77

page_text: rest bar J from centre of stone to a pillar fixed on pedestal F for the purpose of
resting the surfacing tool against when surfacing the stone.
Having now particularly described the nature of my said invention and in
what manner the same is to be performed, I declare that what I claim is
--
1. In machines as above described, the method of giving motion to a disc such
as C by means of a pulley acting directly under and in contact with the disc or
other substance to cause friction.
2. The combination and general construction and arrangement of such parts as
hereinbefore described and illustrated.
Dated this Eighth day of November 1894.
ARTHUR FRANK DENISON.