Improvements in Handles for Holding Removable Blades and other Instruments.
Year: 1895

page_text: Date of Application, 9th Aug., 1895
Complete Specification Left, 9th May. 1896-Accepted, 13th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Handles for Holding Removable Blades and other
Instruments.
I, HERBERT JOHN MARSDEN, of Sycamore Street, in the City of Sheffield,
Merchant, do hereby declare the nature of my invention to be as follows:-
My invention relates to improvements in the construction of handles for holding
removable blades, or other like instruments, and more particularly the long thin
blades used by shoe makers, for which purpose it is specially adapted. For
example I make a handle consisting of two scales which are secured to and are
held apart by an interposed metal back strip, extending some distance between
the scales, and having a saw-gate or like longitudinal slit down its inner edge for
the reception of one edge of the shank of the blade. Between the scales on the
other side I pin-joint at its lower end a short arm preferably of steel, and in its
opposite end which is made broader for the purpose I make a slit to correspond
with the one before mentioned and to receive the opposite edge of the blade shank.
Upon the handle thus made I place a sliding ring of the same configuration as the
cross section of the handle, which at the end in which the blade is inserted, is
gradually increased in size. When the blade is in position and the arm closed,
the ring is forced upwards, causing the blade to be lightly gripped in the slits
between the back strip and the arm.
Dated the 8th dex of Anaust 1805
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.
Improvements in Handles for Holding Removable Blades and other
Instruments.
I HERBERT JOHN MARSDEN of Sycamore Street in the City of Sheffield
Merchant, do hereby declare the nature of this invention and in what manner the
same has to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention relates to improvements in the construction of handles for holding
removable blades and other like instruments, and more particularly such long
thin blades as are used in clicker knives in the boot trades for which purpose it is
apecially adapted.
I have illustrated my invention in the annexed sheet of drawings in which :
Fig. 1, represents a handle for holding removable blades with the securing lever
drawn out, also the end view with the lever closed.
Fig. 2, edge view of same closed and with blade secured in position.
Fig. 3, a handle for the same purpose with a long lever to be secured by
a link.
Fig. 4, a handle with the front scale removed with lever to be secured by a
catch piece.
Similar letters of reference indicate similar parts in any of the figures in which
they occur.

page_text: In carrying out my invention as shown in Figs. 1 and 2, I make a handle
consisting of two scales A & B, which are secured to and held apart by au
interposed metal back C, extending some distance between the scales and having
a longitudinal slit D, down its inner edge for the reception of one edge of the
shank of the blade E.
Between the scales on the opposite side I pinjoint through its lower end a short
lever or arm F, made preferably of steel, and in the opposite end which is made
broader for the purpose I make a slit G, to correspond with the one in the back C,
before mentioned, to receive the opposite edge of the blade E.
Both these slits are seen in the end view of knife in Fig. 1.
Upon the handle I place a slide of suitable configuration H, which can be moved
from one end to the other, but is prevented coming off at the front end as the
bandle increases in size at that end.
When the blade is inserted in the end of the handle and pushed down to the
required position, the slide is moved over the lever F, which forces it upon the
blade and holds it firmly in its place, as shown in Fig. 2, the blade being tightly
gripped in the slits or grooves.
The principle of my invention may be carried out in modified forms as for
example in Fig. 3, the lever F, is made longer, and is pivotted at the front end,
the broad part with the slit G, being indicated by dotted lines. The opposite end
of the lever is provided with a catch I, over which the link J, can be turned when
the lever is forced below the level of the handle which can readily be done by
pressing upon it at the point K, it can be released in the same way.
The catch
In Fig. 4, I show the substitution of a catch piece L for the link J.
piece is fitted between the scales or sides of the handle, and is capable of being
moved in and out of gear with the catch I, when the lever is pressed below the
level of the handle as before described.
For some classes of blades or instruments, I make the projection upon the lever
solid, and I make a recess or notch in the edge of the blade or like instrument
for the said projection to fit into when the lever is closed within the handle.
By my invention different blades or instruments can be readily inserted or
removed from the handle and can be securely held while in use.
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:
1. A handle for holding detachable flat blades as herein before described, with
reference to Figs. 1 and 2 of the annexed drawings.
2. A handle for holding detachable blades as hereinbefore described, with
reference to Figs. 3 and 4 of the annexed drawings.
3. In a handle for holding blades which can be readily removed, a lever F, to
close upon the edge of the blade, provided with a slit G, a back piece C, also
provided with a slit D, and means for pressing and firmly securing the lever F,
against the blade as hereinbefore described and shown.
4. In a handle for holding removable blades, a lever F, for gripping the blade,
and a link J, for retaining the lever in its closed position as herein before described
and shown.
5. In a handle for holding removable blades, a lever F, in combination with a
catch L arranged and acting for the purpose specified, as herein before described
and set forth.
ROBT. F. DRURY, C.P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.