Improvements in Steam Winches and Cranes.
Year: 1893

page_text: Date of Application, 4th Feb., 1893
Complete Specification Left, 23rd Oct., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Steam Winches and Cranes.
I, THOMAS SCOTT, of the Firm of Scott Sons and Watt, of 64 to 70 Lancefield
Street, Glasgow, Lanarkshire, North Britain, Engineers and Steam Winch and
Ship Jib Crane Makers, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in steam winches and cranes for lifting
and discharging cargo on board ships, etc.
By my improvements I dispense with quadrants, links, three eccentrics, and two
rods, and in lieu thereof I have one eccentric with a wiper shaft connected to the
eccentric strap. At opposite end of shaft there is another wiper for working
opposite valve. Connected to or in one piece with the eccentric there is a sleeve
having a scroll. Carried on this sleeve there is a clutch having a pin working in
the scroll. This clutch works on two feathers and is operated by means of
compound levers..
Dated this 3rd day of February 1893.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in Steam Winches and Cranes.
I, THOMAS SCOTT, of the Firm of Scott Sons & Watt, of 64 to 70 Lancefield
Street, Glasgow, Lanarkshire, North Britain, Engineers and Steam Winch and
Ship Jib Crane Makers 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 improvements in steam winches and cranes for lifting
and discharging cargo on board ships etc.
In order that my invention may be properly understood and readily carried into
effect I have hereunto appended two explanatory sheets of drawings in the several
figures of which corresponding parts are marked with the same letters of reference.
Figure 1 is a horizontal section showing my improvements.
Figures 2 and 3 are sectional end views.
Figure 4 is a detached view of sleeve showing projection working in helical
groove.
By my improvements I dispense with quadrants, links, three eccentrics, and
three rods, and in lieu thereof I have one eccentric A, with a wiper shaft B
connected to the eccentric strap K by means of the levers L and M for working
the valve C. At opposite end of wiper shaft B there is a wiper D for working
opposite valve E, Figure 1. Connected to the eccentric A there is a shaft Ŏ
having a helical groove or scroll G, Figures 1 and 4. Carried on this shaft O
there is a sleeve F having a clutch H, on the outside of it. There is a pin ƒ on
the inside of the sleeve F working in the helical groove or scroll G. This clutch H
works on two feathers I and is operated by means of compound levers Q for
altering the position of the eccentric A. To throw the strain off the pin there
is a projection R formed on the shaft O which works in the recess S in the
eccentric A

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 :-
The improvements in steam winches and cranes substantially as hereinbefore
described and shown on the accompanying sheets of drawings.
Dated this 21st day of October 1893.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.