IMPROVEMENTS IN CUTLERY
Year: 1884

page_text: I CHARLES HENRY WOOD of Charles Street, Sheffield in the County of York.
Cutlery Manufacturer do hereby declare the nature of my said Invention for
IMPROVEMENTS IN CUTLERY" to be as follows:-
My invention of Improvements in Cutlery relates principally to erasing and
other desk knives, and pocket cutlery, in which the blades are intended to slide in
and out, instead of turning upon a pin. The object of my invention is to simplify
the construction of such articles, and there are various minor advantages arrising
from my novel construction. In the manufacture of an Eraser in which the blade
slides into a round metallic handle (for example) it is usual to attach the blade to
a round wood slidé, made to fit the inside of the tubular handle, and having a
catch or thumb bit projecting through a longitudinal slot in the handle; the end of
the tubular handle is closed with the exception of a suitable slit for the blade,
which also guides and supports the blade when in use.
If the wood slide becomes damp it swells and sticks fast, if too dry it contracts
and becomes loose. In metallic handles as described, it is often desirable to plate
them with silver or nickel, but this is almost impracticable, as if the wood slide is
left in, it gets wet and expand, (the steel blade is also liable to damage by the
chemicals in the vat) and if taken out and put together again after plating, the end
requires soldering and the appearance is damaged thereby.
According to my invention I should make the separate parts, that is the tubular
handle and the blade complete and finished before putting them together. The
handle would be provided with a slot for the catch or thumb bit, and one of the
closed ends be prepared with a slot for the entrance of the blade. This part may
now be electro plated. The blade is preferably made with a tail piece or slide,
which, when the blade is out, fits the slit in the end of the handle and supports.
the blade. On the top edge of the tail piece I attach a spring sufficiently narrow.
to pass through the slit in the handle and having a catch or thumb bit on the top
side or instead of attaching a separate spring, I may construct the spring out of
the tail piece, by slitting, or similar means. To put the two parts together, it is
only necessary to compress the spring until the catch or thumb bit and the tail
piece can be passed through the slit in the end of the handle, on being pushed
further back the catch or thumb bit will enter the longitudinal slot, and the blade
can then be drawn back by the thumb in the usual manner. In some classes of
knives it will be more convenient to arrange the spring at the side or flat of the
tail piece of the blade.
ROBT F. DRURY,
George Street, Sheffield,
Agent.

page_text: I CHARLES HENRY WOOD of 5 Charles Street Sheffield in the County of York
Manufacturer of Cutlery do hereby declare the nature of my invention for
IMPROVEMENTS IN CUTLERY and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:-
My invention of improvements in Cutlery relates principally to erasing and
other desk knives and pocket Cutlery in which the blades are intended to slide in
and out instead of turning upon a pin The object of my invention is to simplify
the construction of such articles and there are various minor advantages arising
from my novel construction In the manufacture of an eraser in which the blade
slides into a round metallic handle (for example) it is usual to attach the blade to
a round wood slide made to fit the inside of the tubular handle and having a catch
or thumb bit projecting through a longitudinal slot in the handle the end of the
tubular handle is closed with the exception of a suitable slit for the blade which
also guides and supports the blade when in use If the wood slide becomes damp
it swells and sticks fast if too dry it contracts and becomes loose In metallic
handles as described it is often desirable to plate them with silver or nickel but
this is almost impractable as if the wood slide is left in it gets wet and expands
(the steel blade is also liable to damage by the chemicals in the vat) and if taken
out and put together again after plating the end requires soldering and the
appearance is damaged thereby According to my invention I should make the
separate parts that is the tubular handle and the blade complete and finished
before putting them together The handle would be provided with a slot for the
catch or thumb bit and one of the closed ends be prepared with a slot for the
entrance of the blade This part may now be electro plated The blade is
preferably made with a tail piece or slide which when the blade is out fits the slit
in the end of the handle and supports the blade On the top edge of the tail piece
I attach a spring sufficiently narrow to pass through the slit in the handle and
having a catch or thumb bit on the topside or instead of attaching a separate
spring I may construct the spring out of the tail piece by slitting or similar means
To put the two parts together it is only necessary to compress the spring until the
catch or thumb bit and the tail piece can be passed through the slit in the end of
the handle on being pushed further back the catch or thumb bit will enter the
longitudinal slot and the blade can then be drawn back by the tubular bandle In
some classes of knives it will be more convenient to arrange the spring at the side
or flat of the tail piece of the blade.
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:
"
The blade and spring arranged and constructed as herein described in combination
with the tube or hollow handle or any modification of the same.