IMPROVEMENTS IN ROWLOCKS
Year: 1884

page_text: I SAMUEL SEARLE HAZELAND of the parish of St Sampsons in the County of
Cornwall Experimental Machinist do hereby declare the nature of my invention
for "IMPROVEMENTS IN ROWLOCKS" to be as follows:-
In this improved rowlock a strip of zinc or other metal is secured round the oar
shaft so as to form a bearing ring and said ring swivels or feathers in a holding
ring a stud formed in one with or attached to the holding ring swivels from a post
or gunwale pivot and said post or gunwale pivot is supported by and swivels in
either a boats gunwale a gunwale socket secured thereto or a hole formed in the
stays of or anything supported by the stays of an outrigger by this means I secure
a very simple efficient and inexpensive treble swivel rowlock such as may be used
to great advantage in either sea boats river boats or outriggers. The strip of metal
or bearing ring on which the oar feathers, may when in position be prevented from
slipping in or outboard by the projecting heads of nails driven into the oar shaft on
each side of the holding ring If preferred the bearing ring may be a cast ring of
brass or other metal having collars to secure it within the holding ring and also
having a slotted arm reaching along the oar shaft to be secured in different
positions by a thumb screw or it may be a long tube fitted to screw along the
The holding
holding ring for shifting the position of the oar within the rowlock.
ring when swivelling from the side of the gunwale post and also the gunwale pivot
when it is intended to confine it to its socket are to be fastened preferably by split
collar pins The holding ring when swivelling with its centre vertically above the
gunwale pivot may either be confined thereto by a nut & bolt or by a bolt & split
collar pin instead of said nut.

page_text: I SAMUEL. SEARLE HAZELAND of the Parish of St Sampsons in the County of
Cornwall Experimental Machinist do hereby declare the nature of my invention
for IMPROVEMENTS IN ROWLOCKS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :—
-
The object of this invention is to provide simple efficient and inexpensive treble
swivel Rowlocks such as may be used to advantage in either sea boats river boats
or outriggers. The material used in their construction may be either gunmetal
malleable iron or any other suitable material of sufficient strength. When
ungalvanized metal that is liable to rust is used in their manufacture all parts
of these rowlocks should be kept slightly oiled on their outer surfaces as well as
freely oiled in their working or moving parts. In this improved Rowlock a strip
of zinc or other metal is secured round the oar shaft so as to form a bearing ring
and said ring swivels or feathers in a holding ring a stud formed in one with or
attached to the holding ring swivels from a Post or gunwale pivot and said Post or
gunwale pivot is supported by and swivels in either a boats gunwale a gunwale
socket secured thereto or a hole formed in the stays of or anything supported by
the stays of an outrigger The strip of metal or bearing ring on which the oar
feathers may when in position be prevented from slipping in or outboard by the
projecting heads of nails driven into the oar shaft on each side of the holding ring
The holding ring when swiveling from the side of the gunwale post and also the
gunwale pivot when it is intended to confine it to its socket are to be fastened
preferably by split collar pins In the accompanying drawing (A) represents the
holding ring (B) the stud which is formed in one with or secured thereto (C) the
split collar pin by which it is fastened to the Post or gunwale pivot (D) the Post
or gunwale pivot which is formed in one with its collar (D1) and with its
cylindrical gunwale pin (D2) (D 1) shows the collar on which the Post or gunwale
pivot is supported by the boats gunwale the gunwale socket secured thereto or by
the stays of or anything supported by the stays of an outrigger and (D 2) the
cylindrical pin which swivels in the boats gunwale the gunwale socket secured
thereto or the stays of or anything supported by the stays of an outrigger. The
dotted lines in top of (D) and in (B) and (D 2) show the position of the cylindrical
holes in which the cylindrical stud (B) and the cylindrical collar pins (C) are
inserted. The oar takes its feathering motion from the bearing ring which turns
or swivels within the holding ring (A) its vertical motion from the cylindrical
stud (B) which turns or swivels in the cylindrical hole of the Post or gunwale
Pivot (D) and its horizontal motion from the cylindrical gunwale Pin D 2 which
turns or swivels in the boats gunwale a gunwale socket secured thereto or the
stays of or anything supported by the stays of an outrigger When these rowlocks
are manufactured for use in outriggers the cylindrical pin D 2 may be made
considerably shorter than shown in the drawing. The strip of zinc or other metal
forming the bearing ring may be tacked round the oar shaft with Shoemakers
sprigs The oars may be tossed with rowlocks attached. 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 a treble swivel Rowlock a holding ring swiveling on the side of a Pivot
Post substantially as shown and described.
(2) In a treble swivel Rowlock a strip of zinc or other metal secured round the
oar shaft substantially as described so as to form a bearing ring which may be
turned or feathered within the holding ring.

page_text: (3) In a treble swivel Rowlock instead of flanged or seperate rings for keeping
the oar from slipping in or outboard nails or their equivalent driven into the oar
shaft on each side of the holding ring.
(4) In a treble swivel Rowlock taking its horizontal motion from a single pivot
and its vertical motion from a single pivot substantially as shown and described a
split collar pin or its equivalent for confining the holding ring to its socket.
(5) In a treble swivel Rowlock taking its horizontal motion from a single pivot
and its vertical motion from a single pivot substantially as shown and described a
split collar pin or its equivalent for confining the Gunwale pin to its socket.
Dated this 29th day of September 1884.
SAMUEL SEARLE HAZELAND.