Year: 1885

page_text: We, ALEXANDRE GAUTIER and SOSTHENES Pozzy, both of Paris, France, Iron-
masters, do hereby declare the nature of this invention to be as follows:-
This invention relates to a construction of joint pin, such as may be employed
for jointing a connecting rod to a piston rod or to a lever, or for jointing together
links of a chain, or two arms, such as those of a compass, the object being to render
the joint self fitting without shake and without more friction than is necessary to
secure a good fit. For this purpose, a band of steel or other strong and elastic
metal is wound into the form of a volute like a watch spring and is sprung into
the bored out holes of the pieces that have to be jointed together. The sectional
area and number of convolutions are determined such as will well bear the strain
to which a pin in the same position would be exposed. There may be a central
pin or bolt introduced through the middle of the volute, this pin having at each
end of it a nut or a head or washer rivetted on to prevent the volute from shifting
end-ways.
T
200
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings, London, W.C.

page_text: We, ALEXANDRE GAUTIER and SOSTHENES POZZY, both of Paris, France,
Ironmasters, 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 relates to a construction of joint pin, such as may be employed
for jointing a connecting rod to a piston rod or to a lever, or. for jointing together
links of a chain, or two arms such as those of a compass, the object being to render
the joint self fitting without shake and without more friction than is necessary to
secure a good fit. For this purpose, a band of steel or other strong and elastic
metal is wound into the form of a volute like a watch spring and is sprung into
The sectional
the bored out holes of the pieces that have to be jointed together.
area and number of convolutions are determined such as will well bear the strain
to which a pin in the same position would be exposed. There may be a central
pin or bolt introduced through the middle of the volute, this pin having at each
end of it a nut or a head or washer rivetted on to prevent the volute from shifting
end-waya.
The accompanying drawings illustrate several applications of the invention.
Fig. 1 shews in section a volute a such as is above described acting as a joint pin
to a forked connecting rod B B. Figs. 2 and 3 shew in front view and in section
several volutes a jointing rigidly together two rods. Figs. 4 and 5 shew in section
and front view a single volute a jointing two rods. Fig. 6 is a section shewing
links of a pitch chain jointed together by volutes a through which pass rivets, and
which are enclosed, if required, in pieces of tube acting as distance pieces between
two lines of chain.
Figs. 7 and 8 shew in front view and section a volute a with a pin through it
forming the joint pin of a pair of compasses.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is―.
5.
The use, as a joint pin, of a band of metal wound into volute form and sprung
into holes of the pieces to be jointed together, substantially as and for the purposes
herein set forth.
T L
041
Santambor 1996