Improvements in or relating to the Feathering Gear of Paddle Wheel Floats.
Year: 1887

page_text: Date of Application, 28th Dec., 1887
Complete Left, 31st Mar., 1889
Complete Accepted, 4th May, 1888
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Feathering Gear of Paddle
Wheel Floats.
I, JAMES HENDERSON of No. 2 Shore, Leith, in the County of Midlothian, Stevedore
do hereby declare the nature of this invention to be as follows:-
This Invention relates to the feathering gear of paddle wheel floats of steamers and
the improvements have for object to lessen the prime cost and the charge for main-
tenance whilst ensuring greater strength and durability of the driving pins by which
the driving arms and links connected to the usual eccentric drums or straps on the
paddle shafts operate the bracket arms on the feathering floats of the paddles and
likewise of the long bars on which the paddles oscillate during the rotation of the
paddle wheels. To that end in lieu of casting, shrinking or otherwise fitting brass
or gun metal bushes upon wrought iron driving pins and long bars to work within like
bushes in the bracket arms on the floats, I form the driving pins of steel of the full
size to fit into the usual bushes on the bracket arms the encasing collars or bushes on
the pins being dispensed with, and to provide for lubrication of the pins when such
is desired I insert plugs of metalline or the like in the bushes. The driving pins
which pass through the ends of the driving arms and links and the bracket arms on
the floats are secured by screwed nuts. The pins by which the links connecting the
eccentric drums or straps to the bracket arms are jointed to said straps are also formed
in like manner of simple steel bolts instead of being composed of small iron bolts
encased in brass or gun metal, and in forming the long bars in cases in which such
are provided on the paddle floats I likewise dispense with the usual collars or bushes
encasing the journal bearings and make said journals of the full dimensions in a
piece with the bars which are preferably formed of steel the steel surface working in
contact with the brass or gun metal of the bushes in the bracket arms.
1
1007
CRUIKSHANK & FAIRWEATHER.
62, Saint Vincent Street, Glasgow,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to the Feathering Gear of Paddle
Wheel Floats.
I JAMES HENDERSON of No. 2 Shore, Leith, in the County of Midlothian, Stevedore,
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 relates to the feathering gear of paddle wheel floats of steamers and
the improvements have for object to lessen the prime cost and the charge for main-
tenance whilst ensuring greater strength and durability of the driving pins by which
the driving arms and links connected to the usual eccentric drums or straps on the
paddle shafts operate the bracket arms on the feathering floats of the paddles and
likewise of the long bars on which the paddles oscillate during the rotation of the
paddle wheels. To that end in lieu of casting, shrinking or otherwise fitting brass or
gun metal bushes upon wrought iron driving pins and long bars to work within like
bushes in the bracket arms on the floats, I form the driving pins of steel of the full
size to fit into the usual bushes on the bracket arms the encasing collars or bushes on
the pins being dispensed with; and to provide for lubrications of the pins when such
is desired I may insert plugs of metalline or the like in the bushes.
In the accompanying drawings which illustrate my invention figure 1 is an elevation
and figure 2 a longitudinal vertical section of a paddle wheel in which the paddle
frames are bound together by stay rods and the usual long bolts are dispensed with.
Figures 3 and 4 are elevations of the improved driving pins used for such paddle
wheels. Figures 5 and 6 are views corresponding to figures 1 and 2 of a paddle
wheel in which long bars or bolts are employed in lieu of connecting stays, and
figure 7 is an elevation of the improved long bar or bolt.
As represented in these drawings the driving pins A which pass through the ends of
the driving arms B, and links C, and those A' which pass through the bracket arms D
and the arms B on the floats E, are formed of single pieces of steel entered through
bushes in said arms and link ends and are secured by screwed nuts fitted on to the
screwed ends a of the pins. These pins are enlarged to form suitable journals at the
parts a where in the ordinary forms of pins brass bushes are shrunk on.
The pins by which the links C connecting the eccentric drums or straps F, to
the bracket arms B are jointed to said straps are also formed in like manner of
simple steel bolts instead of being composed of small iron bolts encased in brass
or gun metal. In forming the long bars G in cases in which such are provided
on the paddle floats I likewise dispense with the usual collars or bushes encasing

page_text: the journal bearings and make said journals g of the full dimensions in a piece with
the bars G which are preferably formed of steel the steel surface working in contact
with the brass or gun metal of the bushes H in the bracket arms 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 :-
1. In feathering gear for paddle wheel floats the improved driving and connecting
pins A, A', formed and fitted substantially as hereinbefore described with reference to
figures 1 to 4 of the annexed drawings.
2. In feathering gear for paddle wheel floats the improved long bars or bolts formed
and fitted substantially as hereinbefore described with reference to figures 5, 6 and 7
of the annexed drawings.
DIL
TILIT
L...ר
1000
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.