Improvements in and connected with Sportmen's Knives.
Year: 1890

page_text: Date of Application, 5th Dec., 1890-Accepted, 31st Jan., 1891
COMPLETE SPECIFICATION.
Improvements in and connected with Sportmen's Knives.
We, CONSTANTIN GERLACH, of Trachenberg, in the Kingdom of Prussia,
Ranger, and WILHELM BÖHM, of Breslau, in the Kingdom of Prussia, Manu-
facturer, 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 pocket knives such as are used by sportsmen and these
improvements consist in the combination and arrangement in the knife, of a large
blade, a cartridge extractor, and a locking device; there may also be added to
these the essential elements of the invention, a lead pencil or an erasing blade, a
corkscrew, a pricker or tooth-pick, and a pair of tweezers.
The accompanying drawings illustrate in what manner our said invention may be
carried into effect and will be hereinafter referred to.
Figure 1 represents an elevation of the knife;
Figure 2 an elevation with one of the sides of the handle removed; and
Figure 3 a longitudinal section along the lines ab Figure 1.
A is the large blade; B the universal cartridge extractor; C the locking
arrangement; D the pen or erasing blade; E a cork-screw; F a pricker or tooth-
pick; and G a pair of tweezers.
The blade A, the cartridge extractor B, and the locking arrangement C are
mutually dependent and essential. Assuming the knife to be closed, and the
locking arrangement C drawn back by means of its knob c¹, the cartridge extractor
may be pressed downwards by the thumb so as to exert a pressure upon the pro-
jection of the blade spring upon which the detent a² is formed, thus forcing the
detent out of contact with the heel of the blade A. When the blade A is closed,
its heel is in contact with the spring a³, consequently, when the cartridge extractor
is depressed as hereinbefore described and the detent is removed out of contact
with the heel of the blade, the spring a forces the blade A open, whereupon the
pressure on the extractor B being released, the detent engages with a recess formed
in the heel of the blade A which is thus locked as shewn in Figure 2. The locking
arrangement C is now pushed back into its former position as represented in
Figure 2, bringing the slide 2 under the notch &' formed in the extractor B, so that
the latter can no longer be caused to press upon the projection a' of the blade
spring. This arrangement prevents the accidental closing of the blade A, and the
locking bolt is prevented from accidentally moving by means of the sliding
spring c
The knife may thus be carried with an absolute certainty that the
blade A cannot be accidentally closed or opened.
The universal cartridge extractor B which acts as a lever as hereinbefore
described, has for its further principal use the extraction of central fire cartridges,
for which purpose the segmental recess is formed in front of the extractor and
in use is inserted under the rim of the cartridge. A hole and a groove b* may
also be formed in the extractor for the purpose of extracting Lefancheur cartridges
by their pins. Broken cartridges may be extracted by the wedge-like edge 16,
which part of the extractor may also be used as a screw-driver, a knot opener, a
champagne opener, a tree marker, and for other purposes.
The back of the extractor may be serrated or cut as a file when it will afford a
firmer grip for the finger and may be used for various purposes as is well
understood.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is―
1. A pocket knife in which the main blade is disengaged by means of a second
blade and in which the accidental release of the main blade is prevented by a
locking device, constructed and arranged substantially as herein before described.
2. In a pocket knife, the combination and arrangement of a main blade with a
blade spring having a projection thereon, a second spring such as a³ for opening the
blade, a second blade such as B capable of being pressed upon the projection on
the blade spring, and a locking arrangement; substantially as hereinbefore
described and as illustrated by the accompanying drawings.
3. In a pocket knife, the combination of a spring blade A and a cartridge
extractor B capable of actuating the spring of the blade A; substantially as
herein before described and as illustrated by the accompanying drawings.
4. In a pocket knife, the combination and arrangement of a spring blade such
as A with a lead pencil or with a pen blade; substantially as hereinbefore described
and as illustrated by the accompanying drawings.
5. In a pocket knife, the combination and arrangement with a spring blade such
as A, with a lead pencil or with a pen blade, and with a screw-driver, substantially
as hereinbefore described and as illustrated by the accompanying drawings.
6. In a pocket knife, the combination and arrangement with a spring blade such
as A, with a lead pencil or pen blade, and with a screw-driver and a pricker or
tooth-pick; substantially as herein before described and as illustrated by the accom-
panying drawings.
7. In a pocket knife, the combination and arrangement with a spring blade such
as A, with a lead pencil or pen blade and with a screw-driver, a pricker or tooth-
pick, and a pair of tweezers; substantially as hereinbefore described and as
illustrated by the accompanying drawings.
8. In a pocket knife, the combination and arrangement of a spring blade such
as A, with a cartridge extractor B, a locking arrangement C, a lead pencil or a
pen blade E, a cork-screw E, a pricker or tooth pick F, and a pair of tweezers G,
substantially as hereinbefore described and as illustrated by the accompanying
drawings.
Dated this 4th day of December A.D. 1890.
WILLIAM E. HEYS,
Agent for the Applicants.