Improvements in Rope Tightening Levers.
Year: 1897

page_text: Date of Application, 29th Nov., 1897-Accepted, 19th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in Rope Tightening Levers.
I, DONALD J. CAMPBELL, a Citizen of the United States, and Resident of the
City of Milwaukee and State of Wisconsin, a Portrait Painter, Post Office
Address, Soldiers' Home, Milwaukee, Wisconsin, U.S.A., 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:-
The two principal parts of my invention are first, a circular base-plate which
is to be screwed fast to a perpendicular surface of a tree, post or the like second
a tightening lever which is riveted centrally to said base-plate and having knotter
combined therewith. The object of my invention is to enable any one useing
my devise to tie the knot in an instant, and to give the rope an extra draw with
the lever after the rope has been drawn as tight as possible by hand and the
knot tied.
My invention is fully illustrated in the accompanying drawings, in which-
Figure 1 is a full view of the tightener complete as it appears when fastened
in place. Fig. 2 is the base-plate. Fig. 3 is a sectional view of the tightener
complete. Fig. 4 is a front view of the knotter C. Fig. 5 is a miniature draw-
ing showing the positions of the lover before and after the final draw is given
to the rope. Figs. 6 and 7 are detail perspective views of the knotter and illus-
trate the method of knotting the rope around the same. Fig. 8 is a detail sec-
tional view of the knotter on line 8-8 of Fig. 9. Fig. 9 is a section on the
line 9-9 of Fig. 8; and Fig. 10 is a similar view to Fig. 4. showing the rope
in place.
Similar letters refer to similar parts throughout the several views.
A is the tightening-lever.
B is the base-plate.
C is C is the knotter.
I is the rivet which holds the parts A and B together.
N is a washer to be placed on the rivet I after the rivet has been passed
through parts A and B, respectively, the washer to remain on the rivet and the
bur of the rivet to be formed over it.
H, Fig. 3, is a lug or stop which works in the slot J, Fig. 2, and stops the
swing of the lever A.
K, represents the screw-holes.
X, Fig. 1, is a point which would be intersected by a straight line passing
through the center of the lever A from end to end.
X is the point where X stands before having given the rope the final draw.
X is the point where X stands after having given the rope the final draw.
L. Fig. 1, shows the position of a rope when drawn tight with the tightening-
lever A.
L. Fig. 5, shows the position of a rope before having given the final draw
with lever A. while the position in dotted lines of this figure shows the same as
that illustrated in Figure 1.
Price 8d 1

page_text: The tightener is fastened in place with two screws, the two screw-holes being
set on a horizontal line, as shown in Fig. 1.
To tighten a rope, proceed as follows: Having adjusted the rope ready to be
tightened, move the lever A up and ahead as far as it will go, which will leave X
upon the lever at X upon the base-plate, and with both hands draw the rope
over the knotter as tight as you can. Then draw the rope down behind and
under the knotter and place the thumb of the right hand on the rope under the
knotter to keep the rope from slipping back, hold the surplus in the left hand
close up to the knotter, pass it (the surplus rope) ahead even with the front
part of the lever, then to the right and upward, and when even with the top of
the knotter C draw it (the surplus rope) over the knotter and between the knotter
and the tighter part of the rope. The knot is now in shape and is made firm and
the rope given the final draw by moving the lever A backward with the right hand
until stands at X" The tight part of the rope will rest across the surplus
part in such a way that the rope cannot slip after knotting.
The knotter C is substantially oval in form with a depression in one side to
receive the rope and narrows down at its base to form a tapered groove, where
it connects to the lever A, in which the rope rests, and projecting from one side
of the tapered groove at the base of said oval is a horn M, (see Figs. 8 to 10
inclusive.) around which the loose end of the rope is given a half-turn before it
passes across the path of the groove which encircles the oval. The rope L then
compresses this loose end between it and the groove and prevents it from slipping.
The lever A when in position to receive the rope leans ahead of a vertical
position just enough so that the surplus rope can be easily slipped between the
tighter part of the rope and the knotter C. and after the lever A is drawn back
(after having given the rope the final draw) the top of the rope will be about
an inch below the center of rivet I, which will prevent the lever A from being
drawn ahead by the tension of the rope.
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 a rope-tightener, a base-plate having a segmental slot therein extending
approximately from a vertical line drawn to the center on which the segmental
slot is described, to a point at an angle from said line of about one hundred
degrees, a lever fulcrumed to said plate concentric to the slot, a lug projecting
form the lever into said segmental slot, and a rope-knotter attached to the lever
at a suitable distance from its fulcrum, substantially as described.
Dated this 10th day of Novum 1907
DONALD J. CAMPBELL.