Improvements in Rowlocks for Boats.
Year: 1893

page_text: Date of Application, 21st Feb., 1893
Complete Specification Left. 25th Oct., 1893-Accepted, 25th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Rowlocks for Boats.
I. JAMES YATE JOHNSON of 115 St. Vincent Street, Glasgow, in the County
of Lanark, North Britain, Chartered Patent Agent (a communication from abroad
by Thomas R. Greenhorn, Engineer, Colombo, Ceylon), do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in rowlocks for boats.
In accordance with my invention I dispense with the hole in the gunwale for the
rowlock to work in and in lieu thereof I mount the rowlock in the centre of a flat
spring the ends of which are secured to the gunwale by studs or bolts working
through slots in the ends of the spring. The invention prevents jarring caused by
the ordinary rowlock wearing loose in the gunwale. The spring rowlock enables
the rower to exert a uniform force throughout the entire stroke and no power is
lost. It also gives a cushioning to the oar. There is also no liability of the oar
to snap.
Dated this 20th day of February 1893.
J. Y. JOHNSON,
115, St. Vincent Street, Glasgow, Petitioner's Agent,
COMPLETE SPECIFICATION.
Improvements in Rowlocks for Boats.
I JAMES YATE JOHNSON, of 115 St. Vincent Street, Glasgow, in the County of
Lanark, North Britain, Chartered Patent Agent, (a communication from abroad
by Thomas R. Greenhorn, Engineer, Colombo, Ceylon,) 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 improvements in rowlocks for boats, and has for its
objects to prevent jarring owing to the rowlock wearing loose in the gunwale;
to enable the rower to exert a uniform force throughout the entire length of the
stroke with practically no loss of power, with no liability of the oar to snap.
my invention forms a cushioning to the oar.
Also
In carrying out my invention as illustrated in part elevation Figure 1, part plan,
Figure 2 and in detail Figure 3, I dispense with the hole in the gunwale for the
rowlock to work in, and in lieu thereof, I mount the rowlock A in the centre of a
flat spring B the ends of which are secured to the gunwale by studs or bolts C
which work through corresponding slots b formed in the ends of the flat spring B.
The studs or bolts C are secured to the gunwale as shown more particularly in
Figures 1 and 3, that is to say, the bolts C which have their heads e formed oblong
in shape are rivetted or otherwise secured to plates c¹, which are screwed or
otherwise attached to the gunwale of the boat, in such a manner as to permit of
their heads e being partially revolved after being passed through the slots b of the
springs B, so as to lock the said springs in position.
The whole thus forms an easily operated, effective and powerful rowlock which
may be used for racing, pleasure, ship's and other classes of rowing boats.
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 rowlocks for boats, mounting the rowlock upon the spring B substantially in

page_text: the manner as and for the purposes hereinbefore described and shown in the
accompanying drawings.
Dated this day, the 23rd of October 1893
J. Y. JOHNSON,
115, St. Vincent Street, Glasgow, Applicant's Agent.