Combined Level and Knife.
Year: 1892

page_text: Date of Application, 12th Nov., 1892
Complete Specification Left, 12th Aug., 1893-Accepted, 28th Oct., 1893
PROVISIONAL SPECIFICATION.
Combined Level and Knife.
I, EDWARD MARTIN, of Ashby Road, Melbourne, in the County of Derby,
Photographer, do hereby declare the nature of this invention to be as follows:-
My invention relates to the manner in which I construct spirit levels for
pocket use being in combination with a knife blade or blades in one case or
frame.
In carrying my invention into effect I construct a spirit level in the form of
a glass tube in the usual and ordinary manner containing the air bubble, and I
mount this tube thus produced within a frame or case of metal or other suitable
material having a shape preferably of the ordinary pocket knife, and containing
a blade or blades. I attach the level with its self-contained case to a knife
frame preferably at one end on a hinge or pivot so that it may be readily moved
in and out of position for adjusting any desired object. The metal shield or case.
containing the glass I prefer to construct with its end arranged as a joint
although sometimes construct the case so that it will fit into a recess or opening
formed in the knife handle, the other fittings of the knife, such as the blades,
springs and the like, being arranged in a manner to clear a level case. By, this
arrangement I am enabled to withdraw the complete level from the knife and place
it upon any desired object which is to be adjusted or examined.
When constructing my improved combination knife and level with the level itself.
a fixture within the handle, I do not always pivot or hinge it at one end, but I
sometimes construct it with a central pivot or axis so that it may be turned round
in every direction; the handle of the knife being formed in a manner to permit of
this free movement without interfering with the blades.
I sometimes make the handles or edges of the knife a true plane or level surface
so that the spirit level can be used by simply placing the edges or sides of the knife
upon the object; or I form strips or bars upon the edges or sides having a true
alignment of surface for the same purpose.
Dated this 11th day of November 1892.
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Combined Level and Knife.
1, EDWARD MARTIN, of Ashby Road, Melbourne, in the County of Derby,
Photographer, 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:-
My invention relates to the manner in which I construct spirit levels for
pocket use being in combination with a knife blade or like article in one case
or frame..
In carrying my invention into effect I construct a spirit level in the form of a
glass tube in the usual and ordinary manner containing the air bubble, and I mount
this tube thus produced within a frame or case of metal or other suitable material
having a shape preferably of the ordinary pocket knife, and containing a blade or
blades, as illustrated in the accompanying drawings, Figure 1 being an elevation,
and Figure 2 a plan of my combination knife and level.

page_text: I attach the level A with its self-contained case B to a knife frame C preferably
at one end on a hinge or pivot D so that it may be readily moved in and out of
position for adjusting any desired object. The metal shield or case B containing
the glass I prefer to construct with its end arranged as a joint as shown in Figure 1
and Figure 2, although I sometimes construct the case B¹ as shown in plan at
Figure 3 and in end elevation at Figure 4 so that it will fit into a recess or
opening E formed in the knife handle C, with a spring or snap fastening F to
secure it in position, the other fittings of the knife, such as the blades F, springs
and the like being arranged in a manner to clear the level case B. By this
arrangement I am enabled to withdraw the complete level from the knife and place
it upon any desired object which is to be adjusted or examined, at the same time by
means of an opening C¹ within the case the level may be used without withdrawing
it from position.
When constructing my improved combination knife and level with the level itself
a fixture within the handle, I do not always pivot or hinge it at one end, but I
sometimes construct it with a central pivot or axis D¹ as shown in plan at Figure 5
and end elevation at Figure 6, so that it may be turned round in every direction
for testing plane surfaces on one setting of the knife or casing; the handle of the
knife being formed in a manner to permit of this free movement without interfering
with the blades.
I sometimes make the handles or edges of the knife a true plane or level surface
so that the spirit can be used by simply placing the edges or sides of the knife upon
the object; or I form strips or bars upon the edges or sides having a true alignment
of surface for a like object.
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. The combination and arrangement of a pocket spirit level and case substan-
tially as and for the purposes hereinbefore described and as illustrated in the
accompanying drawings.
2. The construction of a pocket knife and spirit level substantially as hereinbefore
described.
1
1000
MARKS & CLERK,
13, Temple Street, Birmingham, Agents for the Applicant.