An Improved Crank for use in Railway Signalling.
Year: 1898

page_text: PROVISIONAL SPECIFICA FION.
An Improved Crank for use in Railway Signalling.
.I, ARTHUR GEORGE EVANS, of 116, Palace Chambers, Westminster, in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this inven-
tion to be as follows:-
1'0-
This invention has for its object to provide for more efficient lubrication of
flat cranks and the like used in railway signalling than has hitherto been obtained,
and consists in providing a reservoir or oil cup on the crank-plate or support on
which the crank works. I effect this result by forming a recess in the upper or
outer portion of the boss or projection on the crank plate said
or inner por-
cess being of somewhat larger diameter than the lower
tion of the boss on the crank which works in said
the space between the inside wall of the recess and the crank-boss forms
a receptacle or cup for the lubricant which surrounds that portion of the crank-
boss working in said recess.
recess. SO that
1000
JOHN P. O'DONNELL,
Fel. Chart. Inst., P.A.,
Agent for the said Applicant,
70 & 71, Palace Chambers, Westminster, S.W.
COMPLETE SPECIFICATION.
An Improved Crank for use in Railway Signalling.
I, ARTHUR GEORGE EVANS, of 116, Palace Chambers, Westminster, in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this invén-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:-
те-
inner por-
This invention has for its object to provide for more efficient lubrication of
flat cranks and the like used in railway signalling than has hitherto been obtained
and consists in providing a reservoir or oil cup on the crank plate or support on
which the crank works. I effect this result by forming a recess in the upper or
outer portion of the boss or projection on the crank plate said
cess being of somewhat larger diameter than the lower or
that
tion of the boss
the crank which works in said
on
the space between the inside wall of the recess and the crank-boss forms
a receptacle or cup for the lubricant which surrounds that portion of the crank-
boss working in said recess. In the bottom of this oil cup or recess I provide
a groove for the purpose of retaining some of the oil or lubricant for lubricating
the bottom of the crank boss.
recess.
$0

page_text: In order that my invention may be better understood and more readily carried
into effect I will now describe it with reference to the accompanying drawing in
which:
a is the crank plate or support, 6 being the recess or cup formed therein and
the groove in the bottom of said recess for retaining some of the lubricant. dis
e boss of the crank which works about the central projection or pillar a¹ with
crank plate. As an additional means of lubrication I provide two or more vertical
grooves or channels in the outside of the pillar or projection a such grooves or
channels extending down to the bottom of the cup or recess b.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is:
In cranks for railway signalling a cup or recess such as 6 in the crank plate
or support, and a groove or grooves substantially as and for the purpose herein
set forth.
MATCH 1033.
JOHN P. O'DONNELL.
Fel. Chart. Inst., P.A.,
Agent for the said Applicant.
70 & 71, Palace Chambers, Westminster, S.W.