IMPROVEMENTS IN STRAP OR BELT FASTENERS
Year: 1884

page_text: We DAVID BAXTER and JOHN BAXTER of the City of Manchester, in the
County of Lancaster, Belt Manufacturers, do hereby declare the nature of said
invention for "IMPROVEMENTS IN STRAP OR BELT FASTENERS" to be as follows:-
1
Our invention refers to fastners for securing together the ends of straps or belts:
formed of woven fibre, leather or other material, and used for driving machinery,
and consists in the construction and combination together of a bolt, washer, and
screw nut, for this purpose-The bolt has an head of any desired shape and extent
and the inner face of its head has a series of spikes, projections or serrations
extending in a direction parallel with the axis of the bolt-The washer is also
made of any desired shape and extent with similar spikes, projections or, serrations
on its inner face-The two ends of the belt or strap to be fastened are made to
overlap each other, and one or more of these bolts are passed through a hole made.
for each of them in the strap or belt, and the washer is placed on the bolt and
screwed up tight, which forces the spikes, projections or serrations on the head and
washer into the material or fabric of the belt and thus securely holds the ends
together. In some cases, the two ends of the belt to be fastened are brought
together to make a "butt joint," then a piece of the material of the belt is made to
overlap both ends which are secured by fastners; two or more passing through the
splice or overlap as above described.
In some cases we make the washer counter sunk, and the screw nut coned to
correspond. The nut is screwed by a wrench or key acting upon squares on, or on
a groove or grooves or holes in the nut-In some cases two or more bolts are or
may be formed with one connected spiked' head, and with one spiked washer
having as many holes in it as there are bolts and with corresponding screw nuts,
or the washer only is made in one piece and the bolts separate.
Dated this eighteenth day of January 1884.
PETER J. LIVSEY,
Applicants' Agent

page_text: We DAVID BAXTER and JOHN BAXTER of the City of Manchester, in the County
of Lancaster, Belt Manufacturers do hereby declare the nature of said invention
for IMPROVEMENTS IN STRAP. OR BELT FASTENERS and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
Our invention refers to fasteners for securing together the ends of straps or belts
formed of woven fibre, leather, or other material and used for driving machinery
and consists in the construction and combination together of a bolt washer, and
screw nut or modification of same for this purpose.
The bolt has an head of any desired shape and extent and the inner face of its
head has a series of spikes, projections or serrations extending in a direction
parallel with the axis of the bolt-The washer is also made of any desired shape
and extent with similar spikes, projections or serrations on its inner face-The two.
ends of the belt or strap to be fastened are made to overlap each other and one or
more of these bolts are passed through a hole' made for each of them in the strap
or belt, and the washer is placed on the bolt and screwed up tight, which forces
the spikes, projections or serrations on the head and washer into the material or
fabric of the belt and thus securely holds the ends together. In some cases the
two ends of the belt to be fastened are brought together to make a "butt joint"
then a piece of the material of the belt is made to overlap both ends which are
secured by fasteners, two or more passing through the splice or overlap as above
described.
In some cases we make the washer counter sunk, and the screw nut coned to
correspond. The nut is screwed by a wrench or key acting upon squares on or
in a groove or grooves or holes in the nut-In some cases, two or more bolts are
or may be formed with one connected spiked head and with one spiked washer
having as many holes in it as there are bolts and with corresponding screw nuts,
or the washer only is made in one piece and the bolts separate.
Fig 1 shows in section one of our improved fasteners for straps or belts for
driving machinery, when secured to or in the material of the strap or belt; fig 2
shows a detached end view of the bolt or screw head and the spikes on its inner
face; figs 3, 4 and 5 show respectively detached views of the side, outer or top
side, and inner side of the screw nut, and figs 6, 7 and 8 show respectively detached
views of the edge, outer or top side, and inner side (with its spikes) of the
washer.
The head of the bolt or screwed part a is curved or shaped as shown so as when
screwed up to compress the material of the belt b it will sink into the hollow
which it forms therein, as shown in fig 1, whereby the outer surface of the head or
screwed part comes below the adjacent surface of the belt and is not liable in
working to come in contact with the surface of the pulley or drum, the head of the
bolt or screwed part being placed on the inside of the belt which is to work on the
drums or pulleys The spikes or serrations a¹ on the inner side of the head or
screwed part a enter the substance of the belt b on one side, and in one part, and
similar spikes or serrations c³ on the inner side of the washer c also enter the
material of the belt on the other side and in the other part of the belt-The inner
face of the washer c is or may be made more or less concave and the outer side
convex as shown. Its outer side is or may also be made with a slight boss or flat
part for the nut to screw and bed against, and with two slight rounded or convex

page_text: surfaces or projections c³ that will when the screw nut d is turned to the proper
position fit corresponding hollows or concave surfaces d'in the inner face of the
nut d two of which are formed by preference at right angles The elasticity of the
material holds these convex and concave surfaces (c and d) in the washer and nut
together so that when the nut is turned into the position where the concave and
convex surfaces are together it requires so much effort to turn the nut that it is
practically locked and prevented from unscrewing by any vibration in the working
of the belt.
Fig 9 shows in section a modification of our improved belt fastener applied to
the material of the belt Fig. 10 is an end view of the inner face of the head or
screwed part and fig 11 a side view of the same detached.
This modification is the same as that shown by figs 1 to 8 inclusive except that
a hole in the head a is screw tapped with an internal screw thread and the screw
nut is a set screw d screwing into the internal thread in the spiked head a. The
inner face of the head of the set screw d which comes against the washer c has or
may have the concave channels formed upon it same as the screw nut to interlock
with the convex surfaces on the washer as above described in reference to figs 1
to 8 inclusive.
Fig 12 shows in section, one spiked or serrated head or serrated part a with two
washers (c) and two set screws (d) but the head part a may have screwed
projections for the washers and screw nuts same as in fig 1 or the washer may be
double and in one piece having corresponding holes in it for the screws.
Fig 13 is a flat view and fig 14 an edge view showing four of our belt fasteners
similar to those shown by figs 1 to 8 applied to make a splice joint in a driving
belt Any desired number of fasteners may be used according to the width of
the belt.
Fig 15 is an edge view showing our belt fasteners applied to make a butt joint.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed We declare that what
we claim is,
1. In fasteners for driving belts for machinery the combination of a head spiked
or serrated on its inner face with a screw nut or set screw and with a washer
spiked or serrated on its inner face, substantially as hereinbefore described and
illustrated by the drawings.
2. In fasteners for driving belts for machinery the combinations of a head or
part spiked or serrated on its inner face and with two or more nuts or set screws
and with one washer or with separate washers, spiked or serrated on the inner face
or faces, substantially as hereinbefore described and illustrated by fig 12 of the
drawings.
3. In fasteners for driving belts for machinery the combination of a washer
spiked or serrated on its inner face with two or more heads spiked on the inner
face and screw nuts or set screws, substantially as hereinbefore described.
Dated this seventh day of October 1884
PETER J. LIVSEY,
Agent.