close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2405659

код для вставки
Aug. 13, 1946.
H.
L_AR_SEN
2,405,659
ROWLOCK
Filed, Jan. 24, 1945
INVENTOR.
y .
. Harry Larsen.
212 Q /
2,405,659
Patented Aug. 13, 1946
\ATENT tormen
' UNITED‘ STATES
2,405,659
ROWLGCK
Harry V. Larsen, Seattle, Wash.
Application January 24, 1945, Serial No. 574,255
1 Claim.
(or. 9--2s)
1
‘
2
casting or the like, having a ?at base portiony20
that is upwardly thickened, as at 22, between
its ends, that is provided with a transversely dis
posed slotway. This slotway is of inverted T
form in cross-section and opens through the top
side of the thickened portion 22, with its outer
a small boat, such as a rowboat, in lieu of usual
end closed and its inner end opening through
socket block to receive the thole of the ordinary
the inner side of the mounting. The shank M,
type of socket rowlock, the mounting being
of the ring I0, is ?attened, as at I6, at opposite
adapted for securement by screws in a manner
to eliminate any and all need for reinforcement 10 points on its periphery, for sliding engagement
in the upper narrower portion 24, of the slotway,
of the gunwale structure, or the use of ?ller
This invention appertains to improvements in
car or rowlocks generally, and has for its primary
object to provide an efficient type of swivel
mounting for the same, which is adapted to be
fastened directly on the edge of the gunwale of
blocks in such structure.
Another object of the invention is to provide
which terminates at its outer end in a circular
opening 26, to permit of the required turning '
movements of the shank l4 and, consequently, of
greatly facilitates the “laying-in” or “boating” of 15 the ring l0, correspondingly with rowing mo
tions of the oar, while the head I8 is of a diam
the cars, without requiring the lifting of the cars
eter only slightly less than the width of the lower
from the locks in order to-separate the latter from
portion 28, of the slotway, to provide a clearance
the mounting.
sufficient to permit of its ready engagement in
With these and other objects and advantages
in view, the invention resides in the certain. new 20 and disengagement from the latter. The ends of
the base 20 are each provided with pairs of coun
and useful combination, construction, and ar
ter-sunk apertures to receive fastening 30, such
rangement of parts, as will be hereinafter more
a rowlock and a swivel mounting therefor, which
fully described, set forth in the appended claim,
and illustrated in the accompanying drawing, in
which:
25
Figure l is a top plan view ofthe improved
rowlock, including a portion of the loom of an
oar and the leather thereof, in accordance with
the invention;
Figure 2 is an elevation of the inner side of 30
the structure of Figure 1;
Figure 3 is an elevation taken at right angles
to that of Figure 2;
Figure 4 is a top plan view of the swivel mount
35
ing per se; and
Figure 5 is a top plan view of the rowlock
per se.
Referring to the drawing in detail, the row
lock, as it is exempli?ed therein, is comprised
essentially of an upright ring [0, to be engaged 40
on the loom A of an oar, an annular supporting
shoulder l2 surrounding the upper end of a rela
tively short, substantially cylindrical, shank It,
which is provided with a circular head 18 on its
as screws or the like, and a like aperture may be
provided in the base, at its center, to receive an
additional fastening 32; access being had to the
latter through the circular opening 26.
In use, with the rowlocks secured in place on
the gunwales at opposite sides of a small boat;
the ring ll] of each rowlock will be engaged on
the loom A, from the handle end (not shown)
of an oar and, thereafter, the leather cuff B is
secured on the loom and engaged through the
ring, with the “preventer” C, at the inner end
of the cuff, abutted against the inner side of the
ring. In order to “lay-in” or "boat” the oars,
bladed ends (not shown) thereof are swung in
wardly of the sides of the boat to place the oars
in fore and aft positions, when inward pulls on the
loom-s will withdraw the headed shanks from the
slotways in, the base 20, allowing the cars to be
layed in positions of readiness as is customary.
As shown by the broken line ID’, on Figures 1, 3
and 5, the ring I0 is made substantially oval in
cross-section so that usual rowing motions of
lower end. The loom A is preferably provided 45 the oar A are permitted, even though the cuff
B has a substantially snug ?t in the open center
with a leather cuff B, to protect it against rub
of the ring, and these motions are further facili
bing wear against the ring and to more or less
tated by the compressible nature of the material
muf?e the sound incident to rowing movements,
from which the cup is made.
and a preventer, in the form of an annular ?ange
From this description of thelrowlock, and the
C at the inner end of the cuff, to engage the
manner of its use, it will be obvious that it may
inner side of the ring In, to prevent unintended
be conveniently and quickly fastened in position
disengagement of the car from the latter and
on the gunwale of a rowboat, or other small
its possible loss outboard of the boat.
craft, by screws, or on the clamp rail D (Figures
The rowlock, as thus constructed, is supported
in a swivel mounting, which is in the form of a 55 2 and 3), in which case, bolts 30' may be sub
‘
‘
4
2,405,659
3
4
stituted for the screws. By this manner of fas
tening, it will be evident that there is no need
ring having a substantially cylindrical shank, an
to weaken the gunwale structure by boring holes
of the shank, and a circular head at the lower
end of the shank, said slotway being of inverted
T-form, the upper narrower portion of said slot
way terminating at its outer end in a circular
opening, said shank being ?attened at opposite
points on its periphery to allow for its passage
therein to form sockets to receive tholepins or
the like, nor is it necessary that ?ller blocks or
any reinforcement be employed in such struc
ture, in order to correctly and properly mount
the rowlocks in place.
annular supporting shoulder at the upper end
What I claim is:
p g
inwardly of the upper narrower portion of said
In combination, a'ring rowlock and a swivel 10 slotway and into said circular opening for sub
mounting therefor. said mounting being adapted
sequent turning movements in the latter during
to be fastened on the edge of the gunwale of a , rowing motions of the oar.
rowboat or the like and having a slotway open
ing through its top and inner side, and said - '
HARRY V. LARSEN.
Документ
Категория
Без категории
Просмотров
0
Размер файла
255 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа