Improvements in Hand Saws and other Cutting Tools.
Year: 1894

page_text: PROVISIONAL SPECIFICATION.
Improvements in Hand Saws and other Cutting Tools.
I, EDMUND BENNINGHOVEN, Cutler, of Höhscheid, near Solingen, Germany,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object, to utilize the handles of saws and other cutting
tools for covering or protecting the cutting edge of the blade when the tool is not
in use.
For this purpose the handle is divided longitudinally into two parts, and the
latter are hinged together at one end, while the opposite end of one half is hinged
to one end of the saw frame or blade.
The cutting edge or blade has about twice the length of the handle. When the
handle is opened or unfolded, and then turned towards the cutting edge at about
180 degrees, the two halves will be opposite the cutting edge and parallel to the
same, so as to protect the edge. In order to protect the cutting edge on the sides,
as well as in front, the two halves on the handle may have longitudinal grooves
adapted to receive the edge of the blade.
In the case of large saws, the handle may be composed of three or more parts
hinged together, so that, when unfolded, they will have the length of the blade.
To fix the handle in its normal position and also when unfolded, a clamping
screw or similar fastener may be employed. I prefer to use a spring hook, which
acts automatically to fasten the blade when it reaches one or the other of its
extreme positions.
A spring catch or bolt may be guided in a forked attachment or projection of
the handle (that half which is not permanently hinged to the saw frame), the said
bolt having a lateral nose adapted to engage with suitable recesses or openings
formed in the saw frame or saw blade. When the two halves are folded together,
and the tool is. in its working condition, the said spring catch or bolt not only
secures the handle to. the frame or blade, but also serves to hold the two halves
together.
Dated this 10th day of December 1894.
COMPLETE SPECIFICATION.
Improvements in Hand Saws and other Cutting Tools.
I, EDMUND BENNINGHOVEN, Cutler, of Höhscheid, near Solingen, Germany,
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 has for its object, to utilize the handles of saws and other cutting
tools for covering or protecting the cutting edge of the blade, when the tool is not
in use.
For this purpose the handle is divided longitudinally into two parts, and the

page_text: latter are binged together at one end, while the opposite end of tone part or half is
hinged to one end of the saw frame or blade.
In further describing my invention, reference will be made to the accompanying
drawings, of which
Fig. 1 shows a hand-saw ready for work,
Fig. 2 shows the same in a state of rest, the handle having been opened and
placed in proximity to the cutting edge.
Figs. 3 and 4 show another variety of hand saw embodying my invention.
Fig. 5 is an enlarged section along line A-B of Fig. 1.
When
The handle g g has about half the length of the cutting edge or blade.
the handle is opened or unfolded, as indicated in Fig. 2 by dotted lines, and then
turned towards the cutting edge about 180 degrees, the two halves will be opposite
the cutting edge and parallel to the same, so as to protect the edge, Fig. 2.
In
order to protect the cutting edge on the sides, as well as in front, the two halves g
and g of the handle may have longitudinal grooves adapted to receive the edge of
the blade. The inner half g of the handle is hinged to the saw frame at s¹,and the
outer half is hinged to the inner half at s.
In the case of large saws, the handle may be composed of three or more parts
hinged together, so that, when unfolded, they will have the length of the blade.
To fix the handle in its normal position and also when unfolded, a clamping screw
or similar fastening may be employed. I prefer to use a spring hook, adapted to
fasten the blade when it reaches one or the other of its extreme positions.
The drawing shows a spring catch or bolt.k guided in a forked attachment or
projection m of the handle part 91, the said bolt forming at its extremity a hook k¹
adapted to engage with either of two suitable recesses o formed in the saw frame n.
When the two halves are folded together, and the tool is in its working condition,
the said spring catch or bolt k not only secures the handle to the frame, but also
serves to hold the two halves of the 'handle together. For releasing the bolt from
the frame, it is necessary to press on the head, and thereby to compress a
spring coiled around the bolt, as shown in Fig..5.
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. In hand saws and other edge tools, a handle divided longitudinally into two
(or more) parts, one of which is pivoted to the tool, while the other is pivoted to
the first, so that the handle may be spread out and placed in front of the cutting
edge, substantially as described and for the purpose specified.
2. A hand saw or other cutting tool, having a divided handle adapted to change
its position so as to protect the cutting edge and a spring boltik, adapted to secure
the said handle in either of its extreme positions, substantially as described.
Dated this 19th day of August '1995.
FAIRFAX & WETTER,
433, Strand, London, Agents.