Improvements in Row-locks for Boats.
Year: 1893

page_text: Date of Application, 1st June, 1893
Complete Specification Left, 1st Mar., 1894-Accepted, 12th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Row-locks for Boats.
I, WILLIAM EDWARD SANGER of 1, Brick Court, Temple, Barrister-at-Law,
do hereby declare the nature of this invention to be as follows:-
My invention relates to rowlocks or crutches for rowing boats and it has for its
object to enable the distance of the crutch from the centre line of the boat to be
varied so as to enable oars or sculls of different lengths to be used without
inconvenience.
To this end the crutch is supported on the extremity of a horizontal radial arm
mounted on a vertical pivot on the gunwale of the boat and held at any desired
angle to the centre line of the boat and either inboard or outboard by a link or
stay pivoted at one end to the boat and attached to the arm or crutch in such
manner as to hold the arm rigidly in position and yet permit of its being readily
detached and the position of the crutch varied.
Flexible stays or guys may be employed for the purpose of holding the arm in
position and its connection with the boat may be made by a boss or enlargement
of polygonal form adapted to be received in a corresponding socket or recess in the
gunwale of the boat.
Dated this 1st day
T 1000
-
LUUVV
W. E. SANGER,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Row-locks for Boats.
I WILLIAM EDWARD SANGER of Brick Court, Temple, Barrister-at-Law,
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 rowlocks or crutches for rowing boats and it has for its
object to enable the distance of the crutch from the centre line of the boat to be
varied so as to enable oars or sculls whereof the "looms" or inboard portions are
of different lengths, to be used without incouvenience.
Reference is to be bad to the accompanying drawings forming part of this
Specification wherein Figure 1 is an elevation of one arrangement of the improved
rowlock looking aft. Figure 2 is an inside view and Figure 3 a plan. Figures 45 6
are corresponding views of a modified arrangement.
The same letters of reference indicate the same parts in all the figures.
Referring to Figures 1 to 3 A is the crutch pivoted loose and removably upon
a pin B acting as a thole pin or fulcrum for the oar in rowing. This thole pin B
is fixed in the end of a horizontal arm C carried at its other end by a vertical pin D
fitted into sockets E E' fixed to the gunwale of the boat. F is a stay link having
in it a series of holes f any one of which may be fitted onto the thole pin B (having
first removed the crutch A) this stay link being also carried by a pin G received
in sockets E E. By varying the connection of F with B the effective length of
the stay link F and the angular position of the arm C with regard to the gunwale
D

page_text: of the boat are varied as shown in dotted lines and consequently the distance which
the rowlock projects from the gunwale is varied as required. The rowlock is shown
as being outrigged the arm C projecting over the gunwale, but if required as in
very broad boats or when rowing with short handled paddles or sculls the position
may be reversed as shown in dotted lines in Figure 1.
In Figures 4, 5, 6 the stay link F is dispensed with, the arm C being provided
instead with a series of square holes c through any one of which may be passed
the pin D which has a shank of square section and fits in corresponding
sockets E E' so as to be incapable of turning. The arm C may be guyed by
flexible stays or lashings if desired attached to it and to the gunwale, and the pin D
may be secured in the socket E' by a lashing or cross pin passed through a hole d.
In this case also the rowlock may be turned inboard if required.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A rowlock carried by an arm adapted to support the rowlock at a variable
horizontal distance inboard or outboard from the gunwale of the boat, substantially
as and for the purpose specified.
2. A rowlock whereof the crutch and thole pin are fixed to a horizontal arm
pivoted on a vertical axis to the gunwale, in combination with a stay link also
pivoted to the gunwale and adjustably connected to the said arm so as to vary its
effective length and the distance of the rowlock from the gunwale, substantially as
specified.
3. A rowlock whereof the crutch and thole pin are carried by an arm projecting
horizontally from the gunwale and fixed rigidly but adjustably thereto so as to enable
the effective length of the said arm to be varied, substantially as specified.
Dated this 1st day of March 1894.
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TO
Un OT
MATCH 1094.
W. E. SANGER,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.