An Apparatus for Extracting Rings employed for Lining Holes, such as those of Railway-chairs.
Year: 1892

page_text: Date of Application, 12th May, 1892
Complete Specification Left, 13th Feb., 1893-Accepted, 15th Apr., 1893
PROVISIONAL SPECIFICATION.
An Apparatus for Extracting Rings employed for Lining Holes, such
as those of Railway-chairs.
'I, ADRIEN ALBERT Collet, of 2, Rue de Berne, Paris, in the Republic of
France, Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to means or apparatuses for extracting the wooden rings
which are used for lining holes of various kinds, more particularly the bolt holes
of railway-chairs, without necessitating the removal or displacement of the chair
or of any adjacent part, whereby it is possible at any moment and almost
instantaneously to inspect the condition of the rings or to replace them if it is
considered necessary.
My extracting apparatus consists essentially of a kind of claw adapted to be
opened or closed and which can be easily passed through the ring when it is
mechanically or automatically fixed to the ring, it being then only necessary to lift
the extracting apparatus by means of a lever or otherwise to extract the ring.
The extracting claw is carried by a support or sleeve which holds it in place by
means of a nut independent of or connected to the claw which is closed by the
action of one or more springs, by an india-rubber ring or otherwise, and is opened
by the introduction of a wedge-shaped or conical pin connected to or independent
of the said extractor.
The lever for lifting the extracting apparatus may consist of a simple forked
lever or a forked-lever combined with a key or socket of any suitable tool used in
the maintenance of the permanent way.
Dated this 12th day of May 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE
SPECIFICATION.
An Apparatus for Extracting Rings employed for Lining Holes, such
as those of Railway-chairs.
I, ADRIEN ALBERT COLLET, of 2, Rue de Berne, Paris, in the Republic of
France, Engineer, 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 means or apparatuses for extracting the wooden rings
which are used for lining holes of various kinds, more particularly the bolt holes
of railway-chairs, without necessitating the removal or displacement of the chair
or of any adjacent part, whereby it is possible at any moment and almost
instantaneously to inspect the condition of the rings or to replace them if it is
considered necessary.
My extracting apparatus consists essentially of a kind of claw or claws adapted
to be opened or closed and which when closed can be easily passed through the
ring and expanded when it is only necessary to lift the extracting apparatus by
means of a lever or otherwise to extract the ring.
The extracting claw is carried by a support or sleeve which holds it in place by
means of a nut independent of or connected to the claw which is closed by the
action of one or more springs, by an india-rubber ring or otherwise, and is opened
by the introduction of a wedge-shaped or conical pin connected to or independent
of the said extractor.

page_text: The lever for lifting the extracting apparatus may consist of a simple forked
lever or a forked-lever combined with a key or socket of any suitable tool used in
the maintenance of the permanent way.
In order to enable the invention to be fully understood I will describe the same
by reference to the accompanying drawing, in which :-
:-
Figures 1 to 10 represent an extractor which I have found to give good results :
Figure 1 is a vertical section of a tool in its normal position :
Figure 2 is a horizontal section taken on the line 1-2 of Figure 1:
Figure 3 is a similar view to Figure 1 but shewing the claws in action.
Figures 4 and 5 are three views representing the edge, the front and a plan of
one of the claws :
Figure 6 is a detached view of the pin which serves to put in action or open the
claws:
Figures 7 and 8, 9 and 10 are details of the nut which holds the claws in place
and of the spring which brings back these claws into their normal position.
As shewn in the drawing the extractor comprises a kind of sleeve a having a
shoulder a'. This sleeve is bored out starting from the boss with a cylindrical hole
rather smaller than the hole of the wooden ring x that it is required to extract from
the hole in which it has been forced. Next to this hole the sleeve is recessed
concentrically so as to present a horizontal surface a serving to support the head 2
of the extracting claws; finally, the entrance of this large circular recess is screw-
threaded to receive a nut b.
The nut retains the head of the claws between its truncated inclined end and
the bearing surface a' above described.
The claws consist of steel rods c terminated at the top by a head c¹ and at the
bottom by a hook c². The hook has its lower face cut into the form of a catch
or bolt and its hooked part may be slightly inclined.
The head has room for play in the space reserved for it in the nut 6 so that
the hooks of the claws can be brought together to pass easily through the ring
to be extracted; also to allow these hooks to be separated in order to insert their 3
hooked faces between the end of the wooden ring x and the sleeper of the chair.
The claws are held against one another by means of an elastic ring d placed in a
circular groove of the sleeve around the claws.
The claws being brought together can have all the parts joined or more or less
play can be allowed either to the hooked ends or to the rods. Instead of the a
spring I may employ any other arrangement which will give a similar result
particularly the means indicated in Figure 11, consisting in interposing between the
underside of the nut 6 and the tops of the heads c' of the claws, an elastic washer f
of india-rubber; the action of this india-rubber will cause the heads of the claws
to be normally held closed against one another.
The employment of the extractor is as follows:-The bolt being unscrewed and
withdrawn from the ring a,. the claws are introduced until the sleeve a bears on the
boss which surrounds the mouth of the hole of the chair, as clearly shewn in
Figure 15. A pin g, Figure 6, is then introduced which by its truncated conical
point gl causes the gradual insertion of the points of the hooks of the claws
between the underside of the ring x and at the edge of the hole of the sleeper so
that, when the pin g has completely opened the claws, the latter will pass under the
lower part of the ring . It now only remains to withdraw the extractor and the
ring with it. To obtain this result various means can be employed; for example
as shewn in Figure 15 a fork is adapted to the sleeve a, the arms of which fork
bear on the surface of the chair and with the assistance of a key k form a lever
(Figure 17) or the projection of the said fork can be simply struck with
a hammer, or a lever independent of the sleeve; or other suitable means can be
employed for this purpose. The key k can be adapted to the end of an existing
tool such as to the end of the key for tightening the plate bolts, for example,
as shewn in Figures 18 and 19.
When the extractor is removed with the wooden ring the pin g is withdrawn and
4

page_text: the claws are closed together so as to disengage the edges of the ring therefrom and
allow the claws to pass through the hole of the ring.
In Figures 12, 13 and 14 I have shewn that the nut b can be made integral with
the claws c and in all cases the claws may vary in number.
The opening pin g has a flattened pointed end which serves to clear the hole of
the sleeper or to free it from any foreign substance.
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 :-
4. The herein before described extractor for removing rings of ordinary hard or
compressed wood from the bolt holes of railway chairs or from other holes, such
extractor comprising a support or sleeve carrying extracting claws held in place by
a nut independent of or connected to the said claws which are brought together by
springs, an india-rubber ring or otherwise and are opened out by a wedge-shaped
or conical pin connected to or independent of the said extractor, substantially as
hereinbefore described.
2. In combination with the extractor referred to in Claim 1 the use of a
simple forked lever or a forked lever combined with a key or socket of any suitable
tool used in the maintenance of the permanent way substantially as, and for the
purpose, hereinbefore described.
3. The apparatus for extracting rings employed for lining holes such as those of
railway chairs hereinbefore described and illustrated in the accompanying drawings.
הד •
1000
•
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.