Improvements in Row-locks for Boats.
Year: 1892

page_text: Date of Application, 9th Feb., 1892
Complete Specification Left, 8th Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Row-locks for Boats.
I, JAMES SAMUEL HOBROUGH, of Lower Clarence Road, Thorpe Hamlet, in
the City of Norwich, Contractor, do hereby declare the nature of this invention to
be as follows:-
My invention relates to an improved row-lock which is designed to be connected
with an oar or paddle in such a manner that it cannot become detached therefrom.
In carrying out my invention I provide a bush adapted to be secured to the oar
or paddle and to rotate within a ring, the said bush being advantageously provided
upon one side with a flange and upon the other side with a screw-collar or being
otherwise suitably constructed to prevent the bush from slipping out of the ring.
The ring itself is pivotted to the upper end of a pin or shank designed to fit into a
corresponding aperture in the gunwale of the boat.
With this arrangement the to-and-fro motions of the oar take place upon the
said pin; the up-and-down motions, due to dipping the oar into the water and
lifting it therefrom, upon the joint between the ring and the said pin, and the
feathering motions of the oar within the ring.
Means are advantageously provided for preventing the row-lock from becoming
inadvertently unshipped from the gunwale, and for holding the pin or shank of the
row-lock, when the latter is unshipped, in a folded position against the oar.
Dated the 9th day of February 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Row-locks for Boats.
:
JAMES SAMUEL HOBROUGH, of Lower Clarence Road, Thorpe Hamlet, in the
City of Norwich and County of the same City, 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 an improved rowlock which is designed to be connected
with the oar or paddle in such a manner that it cannot become detached therefrom.
In carrying my invention into practice I provide in the improved arrangement shown
in Fig. 1 and 2 a bush a adapted to be secured to the oar or paddle 6 and to rotate
within a ring e, the said bush being provided upon one side with a flange d and
upon the other side with a screw collar e to prevent the bush from slipping out of
the ring. The ring itself is pivoted to the upper end of a shank or pin f designed
to fit into a corresponding aperture in the gunwale of the boat. A slot h in the
bush a and the lug or pin g allow a turning movement through 90 degrees in the
ring c. The lug or pin g is made in one piece with the ring c.
In the modified arrangement illustrated in Fig. 3 and 4 the fixing of the several
parts is effected by a second bush a' having a flange and by a screw i which fastens
both the bushes a and a¹ to the oar or paddle b and allows these parts to turn
through an angle of 90 degrees in the ring c, this movement being limited by the
lug or pin 9 and the slot h.
Fig. 5 and 6 show another arrangement based on the principle hereinbefore set
forth, but instead of securing the bush a in the ring c by a screw collar e as in
Fig. 1 and 2, the ring consists of two hinged halves c and c' which are provided

page_text: between the two flanges of the bush a and thus secure the different parts of the
rowlock and prevent the detachment of the oar or paddle 6 therefrom.
Fig. 7 and 8 represent another modification, in which I employ a bush a without
flanges, the fixing of this bush in the longitudinal direction being effected by a
screw d and slote which allow the said bush to turn in the ring c through an angle
of 90 degrees. The slot e and screw d limit the turning movement of the oar or
paddle b within the ring c.
With these arrangements the to-and-fro motion of the oar or paddle takes
place upon the shank or pin f, whilst the up and down motion, due to dipping the
oar or paddle into the water and lifting it therefrom, takes place upon the joint
between the ringe and the pink and the feathering motions of the oar or paddle
within the said ring.
Means are advantageously provided for preventing the rowlock from becoming
inadvertently unshipped from the gunwale and for holding the shank or pin of
the rowlock when the latter is unshipped, in a folded position against the oar or
paddle.
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 :-
First. In rowlocks the employment of a bush a having a flange d, a screw collare
and an angular slot h, in which a lug or pin g made in one piece with the ring c is
adapted to more, substantially as herein described with reference to Fig. 1 and 2
of the drawings.
Second. In rowlocks the employment of a bush a having an angular slot h, in
combination with a flanged bush a', these bushes being united by the screw i,
thereby securing the connection of the several parts with each other, and a ring c
having a lug or pin g, substantially as described with reference to Fig. 3 and 4 of
the drawings.
Third. In rowlocks the employment of a bush a having two flanges and a slot h,
in combination with a hinged ring c and e' made with a lug or pin g adapted to
slide in the slot 1 of the said bush, substantially as herein described with reference
to Fig. 5 and 6 of the accompanying drawings.
Fourth. In rowlocks the employment of a bush a having a slot e and held in its
place by means of the screw d, one end of which is adapted to slide in the slot e, in
combination with a ring r, substantially as described with reference to Fig. 7 and 8
of the drawings.
Fifth. In rowlocks the employment of the rings e and hinged half-rings c and c
having a lug or pin g made in one piece therewith, substantially as described with
reference to the drawings.
Sixth. In rowlocks the employment of hinged half-rings c and e', substantially as
herein described with reference to the drawings.
Dated this 8th day of November 1892.