IMPROVEMENT IN BELT CLAMPS AND STRETCHERS
Year: 1885

page_text: I, JOSEPH BATLEY, of No. 1 Londesborough St, New Wortley, Leeds manu-
facturers agent do hereby declare the nature of my invention for AN IMPROVEMENT
IN BELT CLAMPS AND STRETCHERS to be as follows:-
The improvement consists in doing away with the bolts and nuts of the ordinary
clamps by means of a wedge shaped top portion to the clamp, which slides forward
into the other portion by the action of a right & left hand screw coupling, and is
thus forced downwards on the belt, as the ends are drawn nearer together, so that
the greater the stretching power the greater the grip on the belt.--The clamp is
scored or corrugated or otherwise roughened to prevent slipping.
"

page_text: An Improvement in Belt Clamps and Stretchers.
1, JOSEPH BATLEY of No. 1 Londesborough Street, New Wortley, Leeds, Manu-
facturer's Agent 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 improvement consists in doing away with the bolts and nuts of the ordinary
clamps by means of a wedge-shaped top portion to the clamp, which slides forward
into the other portion by the action of a right and left handed screw coupling, and
is thus forced downwards on the belt as the ends are drawn nearer together, so
that the greater the stretching power, the greater the grip on the belt. The clamp
is scored or corrugated or otherwise roughened to prevent slipping.
In order that this invention may be properly understood, drawings are annexed
showing a way of carrying the invention into effect, it being understood that the
invention is not limited to this form.
Fig. 1 represents the front view of the apparatus in working order.
Fig. 2 represents a view from above of the same.
Fig. 3 represents a front view of the lower part of the clamp.
Fig. 4 represents the front view of the wedge or upper part of the clamp.
Fig. 5 is the front view of a clamp adapted for stretching belts of cylindrical
section.
'
In all the figures the same letters represent corresponding parts of the apparatus.
a, a, are the clamps.
b, b, is a right and left handed screw working into the wedge portions of the
clamps at g.
c, is a guide rod of round or square section fitting into the hole h of an
attachment firmly secured to the clamp. This rod serves to keep the clamps in
their proper relative positions.
d is the lever employed for turning the screw.
6 is the wedge or upper portion of the clamp.
fis an iron cap fixed on the front of the wedge.
g is the screw hole into which b works.
h is the hole into which the guide rod fits.
k is the lower part of the clamp into which the wedge e slides.
The belt is held between k and e.
Z represents corrugations or scorings to enable the belt to be held more securely.
In Fig. 3 this corrugation is on the lower part of the clamp but it may be in the
upper part or in both.
m in Fig. 5 represents the belt.
n in Fig. 5 shows the surface of the lower part of the clamp.
o in Fig. 5 represents the lower surface of the wedge, which surface may be of
circular or elliptic section.
The clamp is made of hard wood strengthened by metal caps. The attachment
containing the orifice h is of metal

page_text: In use one end of the belt is placed between the wedge and lower part of the
clamp, and the other end of the portion to be stretched is placed similarly in the
other clamp. When the screw b is turned the wedge portions are drawn closer
together and the grip on the belt is tightened, the guide rod at the same time
keeping the clamps in position.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner it may be used, I declare that what I claim is:
1. A clamp in which the top portion is wedge-shaped, and which portion sliding
into the bottom portion by the action of a screw coupling effects a tighter grip as
hereinbefore set forth.