Improvements in Compensating Apparatus for Railway Point Rods and like Purposes.
Year: 1888

page_text: Date of Application, 17th. Jan., 1888-
Complete Specification Left, 9th Oct., 1888
Complete Specification Accepted, 16th Nov., 1888
Improvements in Compensating Apparatus for Railway Point Rods
and like Purposes.
JOHN HARRISON No. 7 Bowling Green Street Higher Buxton Hyde near
Manchester Cheshire Blacksmith I John Harrison do hereby declare nature of my
invention for IMPROVEMENTS IN COMPENSATING APPARATUS FOR RAILWAY POINT
RODS AND LIKE PURPOSES to be as follows:-
A compensating apparatus to allow the expansetion and contraction of rods used in
working points and other effects on railway. The apparatus to be coupled to the rod
used in working the points at any convenient place between the end, of the rod
attached to the points and the end attached to the lever used' in working the points.
The apparatus to be arranged in the following manner as shown in the drawings
A is the stand, the same to be bolted to a wooden bed the bed to be let in the ground
the stand having a hole through the top to admit pin E and also two straight levers B
both levers to work on the pin E there are four short rods C one of the rods C to be
coupled to each of the four ends of levers B the ends of the rods C that is coupled to
the lever ends forms a joint or crosshead the same to work on pin G which passes
through the levers B at the ends, the opposite end of rods C to be flat two of the flat
ends to work on pin F. between the joint or crosshead of rod D the rod D being
the one used in turning points. H is a stand with pulley in the centre on which the
rod D travels this stand being the one now in use to guide the rodding used in
working points. The stand H must be placed as close to the apparatus as it will allow
when it is open at full as shown on drawing No. 2. The drawing No. 1 is showing
the apparatus when the points are closed No. 2 drawing shows the position of the
apparatus when the points are open. No. 3 is same as No. 2 but the opposite
view of the apparatus No. 4 is views of the different parts of which the apparatus is
composed.
1000

page_text: COMPLETE SPECIFICATION.
Improvements in Compensating Apparatus for Railway Point Rods
and like Purposes.
I JOHN HARRISON No. 7 Bowling Green Street, Higher Buxton Hyde, near
Manchester Blacksmith 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:-
In carrying my invention into effect or practice I fix midway of the length of the
rod connection my compensating apparatus which divided or cut in two halves, and
that at each end of halves thus cut shall be arranged a joint, to each of these joints
there shall be two links or straps with an eye on one end of each, to work on a pin
inside of the same joint at the opposite of all the four links or straps shall be formed
as a joint with loose pin through, also there shall be two straight levers with an hole
in the centre to admit pin, the same pin to pass through both levers and each of the
four ends of the same levers to be attached to one each of the four joints at the end
of the four links or straps with pin, and the pin that passes through the two levers in
the centre shall be attached to a pedestal or stand to be vertical in position or in other
ways a flat plate with pin in centre may be used to admit both levers the levers shall
form a cross when working and the four links or straps when at half travel or motion
are at an angle of 45 degrees from the centre of the general line of connection, the
centre of the pin that the two levers work on in the centre of pedestal or stand must
be in a paralell line with the general line of connection. Also there shall be two of
the rollers or pullies that is used in guiding such connection put as close to the
apparatus so as to allow the same to open to the full extent.
In order to enable others skilled in the art to which my invention relates to
understand and carry my improvements into effect or practice I do hereby tender an
explanation of the drawings lodged with my Provisional Specification in which the
same reference letters are used to indicate the same or equivalent parts in all the parts
where shown.
Sheet 1 is a side elevation and shows the apparatus when it is closed to the full
extent. Sheet 2 is the side elevation when it is open Sheet 3 is the top elevation and
Sheet 4 is parts of apparatus before put together.
Referring to the arrangement of my improved Compensating Apparatus shown on
Sheet 1 and Sheet 2 I use pedestal or stand A which would be bolted down on each
side to a wooden frame or other support in the pedestal or stand there is an hole to
admit pin E which the two levers B both levers to work on pin E there are four
links or straps one of these straps C to be coupled to each of the four ends
of levers B the ends of the links or straps C that is coupled to the lever ends
form a joint to work on pin G which passes through the lever end B, the opposite
end of links or straps C to be flat two of the flat ends to form an eye to work on
pin F between the joint of rod D. H is a stand with roller or pulley on which the
rod D travels this stand should be put at a suitable distance to allow the apparatus to
open to the full extent.

page_text: 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,
Firstly. The construction or arrangement and combination of the parts of com-
pensating apparatus for rod connections Operating Switch Points, Locks, Bolts
Signals and such like purposes on railways substantially as and for the advantages
herein described and distinguished in reference to and shown on Sheets 1. 2 and 3
respectively of the drawings lodged with my Provisional Specification.
Second. In compensating apparatus for rod connections the operating of the Switch
Points, Lock, Bolts, Signals and such like purposes on railways by means of diagonal
Straps or Links the same corresponding on both sides of the apparatus substantially
as and in the manner herein described in reference to and shown in sheets 1. 2 and 3
respectively of the drawings lodged with my Provisional Specification.
Third. In compensating apparatus for rod connections on railways the duplicating
of the power transmitting mechanism consisting of the diagonal straps or Links and
two levers moving on pin in the centre both levers forming a cross on same pin
substantially as and in the manner and for the purposes herein described and dis-
tinguished in reference to and shown on Sheets 1. 2 and 3 respectively of the
drawings lodged with my Provisional Specification.
Fourth. In compensating apparatus for rod connections on railway the operating
of the connections so that the drawing of the rod with the two Links or Straps
attached causing the two levers to move thus causing the two Links or Straps attached
to the opposite end of the Levers to move in an opposite direction and thus allow
such rod connections to shorten in length automatically substantially as and in the
manner and for the purposes herein described and distinguished in reference to and
shown in Sheets 1. 2 and 3 respectively of the drawings lodged with my Provisional
Specification.