Improvements in Means for Actuating Railway or other Semaphore Signal Arms.
Year: 1895

page_text: Date of Application, 2nd Jan., 1895
Complete Specification Left, 16th Feb., 1895-Accepted, 20th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in Means for Actuating Railway or other Semaphore
Signal Arms.
JOHN LANDELLS Nos. 2 & 4 Howdon Road North Shields County of
Northumberland Mechanical Engineer RALPH COATES 21 Howdon Road North
Shields, County of Northumberland Coffee Roaster do hereby declare the nature
of this invention to be as follows:-
:-
Our invention has for its object the more certain & positive raising & lowering
of railway or other semaphore signal arms. As at present in general use only one
wire cable is carried between the signal box & semaphore post.
Our invention consists in using two wire cables one going & one returning
these cables being coupled one to each end of the oscilating lever on side of
semaphore post, it will be seen that when one wire is pulled the other slackens in
unison as they are coupled to the levers equal distances on each end from the
oscilating or fulcrum pivot, & adjusted to give the necessary lift & fall to the
semaphore arm, by making use of two cables the raising of the semaphore arm
does not depend (as at present) on the counterbalance weight effecting this purpose,
the one cable in general use only giving power by being pulled to lower the
semaphore arm, the raising into the position of danger being done by the counter-
balance weight alone. By our invention we attach the second wire cable to
the end of lever the counterbalance weight is on & running it side by side with
the present cable to the signal box where it is attached to an oscilating hand
lever, this lever having a double arm, the two cables are attached equal distances
from oscilating pivot, thus giving the signalman positive power over the raising &
lowering of the signal arm.
Dated this First day of January 1895.
JOHN LANDELLS.
RALPH COATES.
COMPLETE SPECIFICATION.
Improvements in Means for Actuating Railway or other Semaphore
Signal Arms.
JOHN LANDELLS 2 & 4 Howdon Road North Shields, County of Northumber-
land, Engineer RALPH COATES 21 Howdon Road North Shields, County of
Northumberland Coffee Roaster 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:-
And in order that the same may be more clearly understood we have herewith
appended one sheet of drawings.
Fig. 1 shews hand lever A in signal box actuating double ended oscilating
levers C¹ D', to each end a chain or wire cable is attached as shewn.
Fig. 2 shews part of semaphore or signal post, C & D represents a wire cable or
chain attached to each end of oscilating lever B, it will be readily understood if
I Price 8d.]

page_text: the cables are connected between C¹ & C & between D¹ & D, the hand lever &
semaphore gear, that oscilating the hand lever compels the semaphore lever to rise
or fall in unison with it.
Having now particularly described & ascertained the nature of our said inven-
tion & in what manner the same is to be performed, we declare that what we
claim is
1st. A hand lever Fig. 1 from which we take a going & coming motion
substantially as shewn & for the purposes described.
2nd. The attachment of a chain or wire cable to the ends CD of double
oscilating lever B on semaphore post, substantially as shewn & for the purposes
described.
3rd. The connecting up of a (double) or two lines of wire cables one going &
one coming between the signal cabin & semaphore post substantially as shewn & for
the purposes described.
Dated this 14th day of February 1895.
JOHN LANDELLS.
RALPH COATES.