An Improved Spanner.
Year: 1896

page_text: Date of Application, 5th June, 1896
Complete Specification Left, 22nd July, 1896-Accepted, 22nd Aug., 1896
PROVISIONAL SPECIFICATION.
An Improved Spanner.
I, JOSEPH PETER FUNT of 22, Clovelly Mansions, Gray's Inn Road, London,.
Merchant, do hereby declare the nature of this invention to be as follows:-
My invention relates to an adjustable spanner combining simplicity, strength, and
cheapness of construction, and which although adaptable to fit nuts of many different
sizes is exempt from the objections to those having a shifting jaw operated by a screw
or other means of adjustment.
My improved spanner has both jaws fixed and is made approximately U-shaped
the two limbs whose terminations form the jaws of the spanner being rigidly braced
together by pairs of cross bars rivetted to them. The width of the jaws thus fixed
accommodates a nut of the maximum size, and in order to reduce the width for
smaller nuts the spanner is provided with a series of juxtaposed slide bars fitted to
slide between the cross braces and adapted to be projected one or more of them as
required in front of the acting face of the one jaw so as to act as packing pieces.
between the face of that jaw and the side of the nut so as to enable the latter to be
gripped between those packing pieces and the face of the other jaw these slide bars.
when not required being retracted into the gap formed by the U-shaped handle of the
spanner.
The slide bars are provided with projecting lugs which serve as thumb pieces
whereby to move them back and forth and also as stops which by abutting against
the cross braces limit the extent of motion of the slide bars and prevent them.
falling out.
1000
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.
An Improved Spanner.
I, JOSEPH PETER FUNT of 22, Clovelly Mansions, Gray's Inn Road, London,
Merchant, 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 an adjustable spanner combining simplicity, compactness,
lightness, strength, and cheapness of construction, and which although adaptable to
fit nuts of many different sizes is capable not only of taking as firm a grip of the nut
as a fixed spanner but is exempt from the objections to which ordinary spanners
having a shifting jaw operated by a screw or other means of adjustment are liable.
My improved spanner has both jaws fixed and the adjustment whereby it is adapted
to fit nuts of different sizes is made by movable packing pieces applied between
them.
The spanner is illustrated in the accompanying drawings forming part of this
specification wherein Figure 1 shews a face view and Figure 2 an end view
thereof

page_text: The spanner is made of steel stamped out or forged and bent to the approximately
U-shape shewn in Figure 1, the two limbs A A' whose terminations a a' form the
jaws of the spanner, being rigidly braced together by pairs of cross bars B B¹ rivetted
to them. The width between the jaws a a' thus fixed, accommodates a nut of the
maximum size and in order to reduce the width for smaller nuts the spanner is
provided with a series of closely juxtaposed slide bars C1 C2 C3 C4 C5 C C C fitted
to slide longitudinally between the two members A A¹ and between the pairs of cross
braces B B the slide bars C being adapted to be projected, one or more of them as
required, into the space between the jaws a a¹ so as to diminish the effective width
between the jaws and act as packing pieces between the one jaw and the side of the
nut. In practice it is preferred to make the jaws slightly dissimilar as shewn so that
whilst the first of these bars C slides and abuts directly against the acting face of the
jaw a the last one Os of the series when projected into the space between the jaws, is
at a distance from the jaw a¹ corresponding to the minimum size of nut. When one
or more of the slide bars are projected in front of the acting face of the jaw a to fit
the nut, the latter may be firmly gripped between those packing pieces and the face
of the other jaw, those of the slide bars which are not required being retracted as
shewn.
The slide bars C are provided with projecting lugs c which serve as thumb pieces
whereby to move them back and forth and which being confined between the cross
braces B B act as stops to limit the extent of motion of the slide bars and prevent
them falling out. The ends c¹ of the slide bars are slightly bevelled as shewn, to.
facilitate the fitting of the spanner on the nut.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A spanner having fixed jaws in combination with movable packing pieces
adapted to reduce the effective width between the jaws so as to adjust the spanner to
fit the nut, substantially as specified.
2. An adjustable spanner formed of two fixed jaws braced together in combination
with longitudinally sliding bars adapted to act as packing pieces to make the effective
width between the jaws fit the nut, substantially as specified.
3. An adjustable spanner formed of a U-shaped frame having its two members
braced together and forming fixed jaws in combination with longitudinally sliding
bars adapted to be projected between the jaws so as to act as packing pieces to make
the spanner fit the nut, as specified.
Dated this 21st day of July 1896.
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.