Apparatus for Indicating the Position of the Eccentric in Locomotives and other Engines.
Year: 1890

page_text: Date of Application, 26th Aug., 1890
Complete Specification Left, 1st May, 1891-Accepted, 6th June, 1891
PROVISIONAL SPECIFICATION.
Apparatus for Indicating the Position of the Eccentric in
Locomotives and other Engines.
I THOMAS ROBINSON of 232 Brixton Hill in the County of Surrey Commission
Agent do hereby declare the nature of this invention to be as follows:-
I attach to the eccentric a rod which moves with the eccentric and is connected
with a series of rods or levers having a pointer which indicates on a disc or other-
wise the exact position of the eccentric. The disc may be placed in any convenient
position so as to be visible to the engine driver who is thus always cognizant of the
position of the eccentric and able to stop the engine so as to avoid the "dead
point."
By a modification of the invention the apparatus may at any moment be thrown
into or out of gear with the eccentric.
ol..תנית
1
1000
COMPLETE SPECIFICATION.
Apparatus for Indicating the Position of the Eccentric in
Locomotives and other Engines.
I THOMAS ROBINSON of 232 Brixton Hill in the County of Surrey Commission
Agent 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, reference being had to the accompanying drawings and the
letters of reference marked thereon (that is to say) :-
-
I attach to the eccentric by means of an arm bolted to the strap a rod which
moves with the eccentric and is connected with a series of rods or levers having a
pointer which indicate on a disc or otherwise the exact position of the eccentric.
The disc may be placed in any convenient position so as to be visible to the engine
driver who is thus always cognisant of the position of the eccentric and therefore of
the crank shaft and able to stop the engine so as to avoid the "dead point.'
Referring to the drawings appended hereto.
In Figure I the rod (A) is connected to the eccentric by means of the arm (B)
pinned to it and bolted to the strap and moves with the eccentric. (C) is a crank
pinned to the rod (A) and keyed to a shaft (D) secured to bearings on each side of
the frames. At one end of the shaft (D) is keyed a crank (E) connected with a
rod (F) which in its turn is connected with the indicating apparatus (G).
A modification of the invention by which the apparatus may at any moment be
thrown into or out of gear with the eccentric is shown in Figure II in which the
arm (B) is not pinned to the rod (A). In the rod (A) is a slot which when the rod
falls by its own weight engages with the arm (B).
The shackle or hook (L) connected with the handle (H) by means of the shaft
and cranks (M) (K) (J) and (I) lifts the rod A out of gear.
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:
1. The apparatus for indicating the position of the eccentric consisting of the
arm B attached to the strap, the rod (A) moving with the eccentric and connected

page_text: to an indicating apparatus substantially as hereinbefore described and shewn in
Figure (I).
2. The modification of the same in which the arm B is not pinned to the rod A
substantially as hereinbefore described and shewn in Figure II.
Dated this 30th day of April 1891.
JOHN
GREENFIELD,
37, Queen Victoria Street, E.C., Agent for the Applicant.