mprovements in the Construction of Weighing Apparatus to be used in Combination with Pocket-knives or the like Implements.
Year: 1899

page_text: Date of Application, 26th June, 1899
Complete Specification Left, 21st Mar., 1900-Accepted, 19th May,
1900
mprovements in the Construction of Weighing Apparatus to be used
in Combination with Pocket-knives or the like Implements.
I, EDMUND PRIESTMAN, of Sheaf Island Works, Pond Hill, Sheffield, Cutlery
Manufacturer, do hereby declare the nature of this invention to be as follows:--
It relates to cases or boxes for containing a spiral spring through, or to, which
a sliding bar may be passed, or be suspended, and by the end of which bar
the article to be weighed is to be supported.
The object of the invention is to provide a compact apparatus which may be
easily attached to or form part of implements usually carried about the person.
This case I preferably make from one piece of metal stamped or bent to act
as a tube to receive a calibrated spiral spring, which, if an open spring is to be
used, has a flange or projection formed or fixed internally therein to support such
spring, or, if a close spring is preferred, then a suitable pin, or other form of
support is provided to which one end of said spring may be secured. One end
of the casing is partially closed leaving only a slot or hole through which the
suspension sliding bar may pass freely, the weight of the article being shewn
either, upon the said bar or upon the case itself as may
upon a scale marked,
be .preferred.
The article to be weighed is suspended by a hook or spring clip projecting
from end of the bar. The form and size of the case is varied or modified to suit
the space in or shape of the implement with which it is to be combined, and
it also contains stops to prevent undue strain or damage to the spring in case
of rough usage or the application of excessive weight.
ISAAC BECK, F.S.P.A.,
Haymarket Chambers, 17, Haymarket, Sheffield,
Agent for the Applicant.
Improvements in the Construction of Weighing Apparatus to ve used
in Combination with Pocket-knives or the like Implements.
I, EDMUND PRIESTMAN; of Sheaf Island Works, Pond Hill, Sheffield, Cutlery
Manufacturer, 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:
1
This invention relates to cases or boxes for containing a spiral spring through
or to which a sliding bar may be passed or be suspended; and by the end of
1. the thing to be weighed is to be supported.

page_text: The object of the invention is to provide a compact apparatus which may be
easily attached to or form part of implements usually carried about the person.
This case I preferably make from one piece of metal stamped or bent to act
as a tube to receive a calibrated spiral spring, said tube, if an open spring is to
be used has a flange or projection formed or fixed therein to support bottom of
such spring if a closed spring is preferred a suitable pin or other form of
support is provided to which the top end of said spring may be secured. One
end of the casing is partially closed leaving only a slot or hole through which a
suspended bar may slide freely. The weight of the article is shown upon a
scale marked either upon the said bar or upon the case itself as may be preferred.
The article to be weighed is suspended by a hook, with or without a spring
clip for small articles, projecting from the end of the knife or other handle,
said hook being integral with the bar. The form and size of the case may be
varied or modified to suit the space in, or shape of, implement with which it is
to be combined: Suitable stops are provided to prevent undue strain or damage
to the spring in case of rough usage or the application of excessive weight.
The annexed drawings illustrate my invention as applied to a fisherman's
disgorger knife.
Fig. 1 is a side view of such a knife having outside scales removed to show
the construction and arrangement of the novel parts. Fig. 2 is an edge view
of the same. Fig. 3 shows a blank shape for forming the inside scales and case A,
the right hand sketch being an edge view of same after bending to final shape.
Fig's 4 & 5 are edge and back views respectively of sliding bar hook, scale being
marked on back of bar. Fig. 6 illustrates a similar bar and hook having a
round extension passing through an open coil spiral spring O.
In practice I proceed as follows, from suitable sheet metal I produce a blank
having two side pieces A A Fig. 3, united by a midle piece, a, and the necessary
holes for fixing other parts. The two sides A, A, are then bent up at right
angles to, u, along the dotted lines, and the small tongue piece, s, is also bent up
to afford support to the sliding hook bar as in Fig. 1; The back spring C, which
acts upon the blade B, is continued right through to the butt end of handle and
is shaped to form the fourth side of the box in which the calibrated spring S,
or O, is to be fixed or suspended, a stop s, is also formed upon which the pro-
jection, t, formed upon sliding bar H may rest whenever the re-arranged move-
ment has taken place and thereby relieve the spring from further strain or
injury. It will be seen that the lower end of the case is partially closed by
projections, s, s¹, and the weighing bar may slide freely between these pro-
jections.
To enable thin or small articles to be held during the weighing operation, a
clip spring J, may be attached to the sliding bar; the graduated scale may
be put upon the clip spring, or upon the back or edge of the sliding bar, and
the weight read off from underside of lip, s, or a pointer may be fixed to said bar
passing through a slot in case, a, and so indicate weight upon a scale marked
on or fixed to the handle.
When an open coil spring 0, is desired the only difference involved in con-
truction is to dispense with means for suspending the close spring and its
bar together, and to substitute supports for the lower end of the said open
spring, a similar action is then obtained.
It will be understood that the usual outside scales D, D, may be used to
give finish to the handle, also that additional blades or implements may be fitted
thereto as desired.
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: —
With a pocket knife or the like implement the combination and addition of
double atal cuales fammi-

page_text: specially formed back spring and a sliding hook bar, a canorated sp
a graduated scale, all forming together a complete portable weighing apparatus
Substantially as herein described and illustrated.
Dated this 20th day
UL
ISAAC BECK, F.S.P.A.,
Agent for the Applicant.
Haymarket Chambers, 17, Haymarket, Sheffield.
ISAAC BECK, F.S.P.A.,
Agent for the Applicant.
Haymarket Chambers, 17, Haymarket, Sheffield.