Year: 1895

page_text: Date of Application, 2nd Dec., 1895-Accepted, 7th Mar., 1896
пепти
The wrench is made from.two flat pieces of metal A (Figure 1) and B (Figure 2)
and the part A is provided with a jaw a, while the part B has a jaw b. A piece
of metal, in the member A (Figure 1) is stamped out or removed in such manner as
preferably to leave a central part or prong d as shown which may in the stamping
(or afterwards, if desired) receive say a right handed screw thread so as to form a
screw. A similarly shaped piece of metal is stamped out of the member B
(Figure 2) so as to leave preferably a central part or pronge which may in a similar
manner during the stamping or afterwards be threaded or screwed with (say) a left
handed thread so as to form a screw, or instead of stamping so as to form a central
prong, a plain oblong hole or slot may be made in each member and a screwed
part is then rivetted to each said member. The screws d and e in any case are
bent in such manner as to come in line with each other as shown, for instance in
Figure 5. where the screw is bent up that part opposite it on the other member is
in each case bent or forced out to form a chamber as shown by the letters f and g or
instead thereof the oblong holes or slots may be made longer, as indicated by the
dotted line in Figure 3. As an example I have shown each member provided with
two lugs, the member A having the lugs h and i (Figure 1) and the member B
having the lugs k and 1, (Figure 2) but it is sufficient if each member have only
one although it is evident they may each have more than two lugs if desired,
without departing from my invention. Mounted on the right and left handed
screws d and e is a comparatively long nut M (Figures 3, 5 and 6) half of the
interior of which is provided with a right handed thread while the other half of
the interior is provided with a left handed thread. The outside of the nut M is
made rough or so fashioned as to permit of its being easily gripped by the fingers
in the well known manner. The lugs (and i) on the member A are then bent
over so as to partly embrace the member B and the lugs k and 7 on the member B
are bent over so as to partly embrace the member A, while at the same time
permitting of the members easily sliding on each other when the nut M is turned
so as to vary the distance between the jaws a and b. The lug is shown as being
stamped out of the middle of the jaw b and this is a convenient way of forming
it. It is however evident that other ways of keeping and guiding the two members

page_text: in their respective positions may be devised without departing from the invention.
The jaws a and b are so bent (see Figure 4 particularly) that they come properly
in line with each other or one only may be bent or they may both be thickened,
one on one side and the other on the other side, for the same purpose. The other
ends of the two members A and B may conveniently be each provided with a hole N
(a square form being shown) and as one member is slided on the other the size of
the resulting hole caused by these two holes coming more or less fair with each
other may be modified by turning the nut M more or less one way or the other.
It will also be apparent that the wrench may, if desired, be provided with two sets
of jaws a and b, one set at each end. One set of jaws would then be preferably
made larger and stronger than the other and capable of application to larger
nuts bolts or the like, but in that case the larger set would not necessarily be close
together when the smaller set was in the position shown by Figure 3. By this
means one end of the wrench or spanner is available for large nuts or the like,
while the other end is for the smaller sizes.
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 shifting spanner or wrench consisting of two members guided by and
sliding on each other each having a jaw or more than one jaw and each being
provided with a screw, one screw being right handed and the other being left
handed, and a nut having a right handed thread at one end and a left handed
thread at the other end mounted on the said screws and capable of being rotated
so as to cause the jaws to approach or recede from each other.
2. A shifting spanner or wrench consisting of two members A and B with
jaws a and b respectively and guided by and sliding on each other by means of
bent over lugs h, i and k, l, the member A being provided with a right handed
screw d and the member B being provided with a left handed screw e a nut M
having a right handed thread at one end and a left handed thread at the other end
mounted on the said screws and capable of being rotated so as to cause the jaws
to approach or recede from each other substantially as described and shown.
3. A shifting spanner or wrench consisting of two members A and B with
jaws a and b respectively at one end and holes N at the other end and guided by and
sliding on each other by means of bent over lugs hi and kl the member A being
provided with a right handed screw d and the member B being provided with a
left handed screw e, a nut M having a right handed thread at one end and a left
handed thread at the other end mounted on the said screws and capable of
being rotated so as to cause the jaws to approach or recede from each other
and the holes N to come more or less fair with each other as shown on the
drawings.
Dated this 2nd day of December 1895
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.