An Improved Adjustable Nut-wrench or Spanner.
Year: 1894

page_text: An Improved Adjustable Nut-wrench or Spanner.
I, SAM THOMAS RICHARDSON, of 34 Rea Street, in the City of Birmingham,
Manufacturer, do hereby declare the nature of this invention to be as follows:
This invention consists of the hereindescribed improved adjustable nut-wrench or
spanner which is one of that kind in which the fixed jaw is formed in a piece with
the lever handle along which the moving jaw is made to slide so as to adjust the
distance between the two jaws to suit nuts of various sizes.
In carrying out this invention I make the moving jaw with a socket through
which the lever handle is threaded the said socket being made to fit loosely upon
the said lever handle and of a somewhat taper form larger at that end which is the
nearer to the fixed jaw so that the movable jaw can be rocked to and fro on the
lever handle through a certain angle which is limited by the shape of the socket.
Along that side of the lever handle which is nearest to the jaws I form a series of
V shaped or other notches with which the back edge of the socket part of the
movable jaw will engage. To adjust the distance between the jaws the movable
jaw is slided up the lever handle until the proper distance between the jaws has
been obtained and then the movable jaw is immediately locked in this position by
the back edge of its socket part engaging with one of the said notches in the lever
handle, the side of the socket farthest from the jaws meanwhile bearing against the
corresponding side of the lever handle.
The said movable jaw is by preference made of a sheet steel blank of about
twice the size of the jaw which is bent centrally forming the socket the two outer
parts of the blank being rivetted together to form that part of the movable jaw
which bears against the nut when the spanner is in use. Or instead of the movable
jaw being made as above described it may he made of cast metal or by stamping
or otherwise formed. A screw or rivet is fixed transversely in the lever handle to
prevent the movable jaw coming off the lever handle when the jaws have been
moved to their widest distance apart.
In some cases aud particularly when the adjustable nut-wrench or spanner above
described is constructed for use by cyclists the extremity of the lever handle may
be shaped to serve as a turn screw.
Dated this 19th day of May 1894.
An Improved Adjustable Nut-wrench or Spanner.
I, SAM THOMAS RICHARDSON, of 34 Rea Street, in the City of Birmingham,
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 :-
This invention consists of the hereindescribed improved adjustable nut wrench

page_text: or spanner which is one of that kind in which the fixed jaw is formed in a piece
with the lever handle along which the moving jaw is made to slide so as to adjust
the distance between the two jaws to suit nuts of various sizes.
I will describe my invention by referring to the accompanying drawing on
which
Figure, is a general view of my improved adjustable nut wrench or spanner;
Fig. 2 is a side view of the same partly in section; Fig. 3 is also a side view of
the same partly in section shewing how the moving jaw has to be raised when
adjusting the position of the same on the lever handle;
Fig. 4 is a separate view of the sheet metal blank for forming the moving jaw.
The same letters of reference indicate the same parts in all the figures.
In carrying out this invention I make the moving jaw A with a socket a¹ through
which the lever handle B is threaded the said socket a' being made to fit loosely
upon the lever handle B and of a somewhat taper form larger at the end a² which
is nearer to the fixed jaw so that the movable jaw A can be rocked to and fro
on the lever handle B. through a certain angle which is limited by the shape of the
socket al. Along that side of the lever handle B which is nearest to the jaws
I form a series of V shaped or other notches e with which the back edge a³ of the
socket part of the movable jaw A will engage. To adjust the distance between the
jaws A the movable jaw. A is slided up the lever handle B (see Fig. 3) until
the proper distance between the jaws has been attained and then the movable
jaw A is immediately locked in this position by the back edge a³ of its socket
part a engaging with one of the notches e in the lever handle B (see Figs. 1 and 2)
the side a of the socket farthest from the jaws meanwhile, bearing against the
corresponding side of the lever handle.
The movable jaw A is made from a sheet steel blank such as shewn by Fig. 4 which is
of about twice the size of the jaw A and which is bent centrally forming a socket a
the two outer parts. a of the blank being rivetted together, as by the rivet d
(Fig. 1) to form the movable jaw A which bears against the nut when the spanner
19 in use. The acting surface of the jaw and a of the jaw A are, by
preference serrated as shewn as in other spanners so as the better to grip the nut.;
or if desired these surfaces may be left plain. The screw or rivet e fixed trans-
versely in the lever handle B. prevents the movable jaw A coming off, the lever
handle when the jaws have been moved to their widest distance apart.
In some cases and particularly when the adjustable nut wrench or spanner above
described is constructed for use by cyclists the extremity 6 of the lever handle B
may be shaped to serve as a turn screw.
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 :-
In an adjustable nut wrench or spanner the combination of a notched lever handle
having a jaw formed at one end thereof and the movable jaw A constructed and
combined with the lever handle and adapted to engage therewith in the manner
herein before set forth..
Dated this 14th day of February 1895.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.