Improved Hydraulic Capstan.
Year: 1898

page_text: Date of Application, 14th May, 1898
Complete Specification Left. 14th Feb., 1899-Accepted. 18th Mar.. 1899
Date of Application, 14th May, 1898
Complete Specification Left. 14th Feb., 1899-Accepted. 18th Mar.. 1899
Improved Hydraulic Capstan.
I, ANGUS MURRAY, of The Anderston Foundry Company, Limited, 100, Cheap-
side Street, in the City of Glasgow, Engineer, do hereby declare the nature of
this invention to be as follows:-
This invention has for its object to provide a simple and compact arrangement
of capstan driven through the intervention of differential speed reducing gear
from a hydraulic or other motor whose running wheel or disc is on the same axis
as the capstan drum.
The capstan barrel or drum is fitted on a vertical or other shaft carried in
bearings in a framing under the base of which is fitted the directing nozzle or
nozzles of a water jet or jets which is or are impelled against the vanes of a
Pelton wheel or other motor keyed on a spindle in line with the capstan drum
shaft and carried in bush bearings in the base plate or lower part of the fram-
ing. The spindle of the motor and the capstan drum shaft are connected together
by differential speed reducing gear consisting by preference of a toothed pinion
fitted loose on an eccentric boss formed on the upper end of the motor spindle
and meshing with an internally toothed wheel secured to the lower end of the
capstan drum shaft, the loose pinion being prevented from rotating with the
eccentric boss by suitable guides.
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1941 1
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1000
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank and Fairweather,
Chartered Patent Agents,
nt Vincent Street, Glasgow, Agent for the Applicant.
Improved Hydraulic Capstan.
I, ANGUS MURRAY, of The Anderston Foundry Company, Limited, 100, Cheap-
side Street, in the City of Glasgow, Engineer, 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:—
This invention has for its object to provide a simple and compact arrangement
of capstan driven through the intervention of differential speed reducing gear
from a hydraulic or other motor whose running wheel or disc is on the same axis
as the capstan drum.
The invention is illustrated by the accompanying drawings, Figure 1 being a

page_text: vertical section of the improved capstan, and Figure 2 a plan of the speed
reducing gear.
The capstan barrel or drum A is fitted on a vertical or other shaft B carried
in bearings in a framing C under the base plate C of which is fitted the directing
nozzle Dor nozzles of a water jet or jets which is or are impelled against the
vanes of a Pelton wheel E or other motor keyed on a spindle in line with the
capstan drum shaft B and carried in bush bearings G in the base plate C¹ or
lower part of the framing C. The spindle F of the motor and the capstan drum
shaft are connected together by differential speed reducing gear consisting
by preference of a toothed pinion H fitted loose on an eccentric boss F1 formed on
the upper end of the motor spindle F and meshing with an internally toothed
wheel I secured to the lower end of the capstan drum shaft B, the loose pinion H
being prevented from rotating with the eccentric boss F by blocks or guides F
on it fitted to slide in stationary guides J on a plate K having a cross sliding
motion on the framing.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is
1. A capstan whose several parts are constructed, combined and arranged to
operate substantially as described.
2. The combination with a capstan of a Pelton wheel or other motor secured
upon a spindle in line with the drum shaft and speed reducing gear connecting
the motor spindle and drum shaft, substantially as and for the purpose set forth.
Dated this 13th day of February 1899.
WALLACE FAIRWEATHER,
Of the Firm of Cruikshank and Fairweather,
Chartered Patent Agents,
62, Saint Vincent Street, Glasgow, Agent for the Applicant.