Improvements in Belt-fasteners.
Year: 1892

page_text: Date of Application, 5th May, 1892
Complete Specification Left, 2nd July, 1892-Accepted, 6th Aug.; 1892
1
PROVISIONAL SPECIFICATION.
Improvements in Belt-fasteners.
1 JAMES WALKER Commercial Traveller 748. Coventry Road Birmingham in
the County of Warwick do hereby declare the nature of this invention to be as
follows:-
This invention consists in the improvements in belt fasteners hereinafter set
forth.
:
By the first modification of my invention I make a belt fastener suitable for a
jump-joint such fastener is formed out of a number of separate parts hereinafter
described.
:
I provide studs, loops, or solid pins of steel, brass, iron, or other suitable material
henceforward refered to as the crossbars; the crossbars may be straight or bent,
but in either case they would be provided with cotter-holes, one cotter hole at
each end.
I next provide flat outside bearing plates each outside bearing plate being
roughened on the under side and pierced with crossbar holes, the roughened surface
of bearing-plate may consist of serrations similar to the serrations of a single cut
file, or I may produce the serrations by punching inwards the outside surface
so as to form on the inner surface the desired roughened bearing face I may also
in some cases provide thin inside bearing plates and place such plates to rest against
the inner surface of belts over the spring-pad.
I next provide cotter-pins of suitable transverse dimensions to pass through the
crossbar cotter-holes.
I combine and utilize the cross-bars, bearing plates, and cotter pins to form a
belt fastener in the following manner.
I take the two ends of the belt that is to be fastened and punch through such
ends the required number of crossbar holes.
I next place between the ends of the belt a layer of felt or other equivalent
yielding material forming a spring-pad and then pass the required number of cross-
bars transversely through both thicknesses of belting and also through the central
spring-pad of felt or other yielding substance.
I prefer in some cases to next pass a thin washer of felt or other yielding
substance over the ends of crossbar that protrude from one side of the joined belt
pressing such layer over the crossbars until the layer rested against the outer face
of one of the belts.
I next take one of the flat serrated bearing plates and pass it over the protruding
ends of crossbars until the roughened face of the bearing plate rested against the
thin layer of felt, rubber or equivalent material, I then provide a cotter-pin
and pass such cotter-pin through the transverse holes provided in the cross-bars,
thus compressing the cotter pin continuously against the outer surface of bearing-
plate.
I proceed to pass over the opposite protruding ends of cross bars a second washer
or layer of felt and then a second serrated bearing plate and afterwards pass a
second cotter-pin through the cotter holes of crossbar, thus connecting the two belts
together in a very secure manner and making a jump-joint superior to the jump-
joints made by the use of other belt fasteners.
By a second modification of my invention I provide the cross-bars, spring-pad,
outside bearing plate, inside bearing-plate, washers and cotter-pins described in
first modification but instead of providing two bearing-plates I provide one double
bearing-plate; the double bearing plate consists of two bearing plates formed out

page_text: of one piece of metal, an arch extending from one side to the opposite side, the arch
passing over and covering the two outside ends of the two belts.
By the third modification of my invention I make a belt fastener suitable for a
butt joint, such improved fastener being made out of a continuous flat piece of
sheet metal, brass, alluminium, or other suitable metal or material, the continuous
flat piece of metal or material is formed with an arch extending across the plate in
the centre of plate from end to end. On each side of the arch are provided bolt
holes the number of such bolt holes varying in accordance with the size of the
fastener.
In using the butt belt fastener made in the manner described in the third
modification of my invention I place the two belt ends to nearly touch, and secure
the fastener to the two belts by means of suitable bolts and nuts taking care to
secure the plate to the two belts so that the centre of the plate bridge will be
directly over the intersection or butt joint of the two belts, I prefer in some cases
to form a rougbened surface on the underside of the butt belt fastener.
The action and advantages of the varions modifications of my improved fastener
are as follows:-
The introduction of the bearing plates behind the cotter-pins prevents the cotters
from sinking into the material constituting the belt, the cross-bars when under
strain from stretching of the belt in work, could not rip holes in the band until the
pressure from such crossbars had widened and forced the crossbar holes provided
in outside bearing plates, the introduction of the washer under the bearing plates
and the spring-pad between the two surfaces of belting lessens the impact of belt
joint against the pulley over which it passes.
Similar advantages also accrue in the use of the second modification and an
additional advantage is gained by forming the double bridge bearing plate,
the inside bridge surface taking a bearing on the extreme ends of both belts,
producing a back pressure to counteract the upward thrust of cross-bars.
The advantages of the third modification consists essentially in the bridge.
yielding each time the belt passes over the pulley, the cord of the arch or bridge
being such as to permit the cord to lengthen when passing over the pulley, by a
compression of the whole of the convex periphery of arch, that is to say the
bending would not take place continually at the crown of the arch, but over the
whole internal surface of the arch, thus the bridge would continue to act as a safe
connecting point for the ends of belt, such belt fastener would not break when
passing over the pulley but would yield to the contour of pulley, such easy running:
tending to prevent the shaft-bearing from wearing oval.
Dated this 4th day of May 1892.
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Agent for the Applicant.
COMPLETE SPECIFICATION..
Improvements in Belt-fasteners.
I; JAMES WALKER, Commercial Traveller, 748 Coventry Road Birmingham,-
in the County of Warwick do hereby declare the nature of this invention and in¹
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention consists in the improvements in belt fasteners hereinafter set
forth.
By the first modification of my invention I make a belt fastener suitable for a
jump-joint such fastener is formed out of a number of separate parts hereinafter
described.
I provide studs, loops, or solid pins of steel, brass, iron, or other suitable material
henceforward refered to as the cross-bars; the cross-bars may be straight or bent,

page_text: but in either case they would be provided with corter
each end.
ww
I next provide flat outside bearing plates each outside bearing plate being
roughened on the underside and pierced with cross-bar holes, the roughened surface
of bearing-plate may consist of serrations similar to the serrations of a single cut
file, or I may produce the serrations by punching inwards the outside surface so as
to form on the inner surface the desired roughened bearing face I may also in some
cases provide thin inside bearing plates and place such plates to rest against the
inner surface of belts over the spring-pad.
I next provide cotter-pins of suitable transverse dimensions to pass through the
cross-bar cotter holes.
I combine and utilize the cross-bars, bearing plates, and cotter-pins to form a
belt fastener in the following manner.
I take the two ends g h of the belt that is to be fastened and punch through such
ends the required number of cross-bar holes.
I next place between the bent up ends of the belt a layer of felt or other
equivalent yielding material forming a spring pad e and then pass the required
number of cross-bars transversely through both thicknesses of belting and also
through the central spring-pad of felt or other yielding substance.
I prefer in some cases to next pass a thin washer p of felt or other yielding
substance over the ends of crossbar that protrude from one side of the joined belt
pressing such layer over the crossbar until the layer rested against the outer face
of one of the belts.
I next take one of the flat serrated bearing plates and pass it over the protruding
ends of cross-bars until the roughened face of the bearing plate rested against
the thin layer p of felt, rubber, or equivalent material, I then provide a cotter-pin
and pass such cotter-pin through the transverse holes provided in the cross-
bars, thus compressing the cotter-pin continuously against the outer surface of
bearing plate.
I proceed to pass over the opposite protruding ends of crossbars a second washer
or layer of felt and then a second serrated bearing plate and afterwards pass a
second cotter-pin through the cotter holes of crossbar, thus connecting the two belts
together in a very secure manner and making a jump-joint superior to the jump-
joints made by the use of other belt fasteners.
By a second modification of my invention I provide the cross-bars a, spring-pad e,
outside bearing-plate c inside bearing-plate d, washers p, and cotter-pins described
in first modification but instead of providing two bearing-plates I provide one
double bearing plate; the double bearing plate consists of two bearing plates
formed out of one piece of metal, an arch extending from one side to the opposite
side, the arch passing over and covering the two outside ends of the two belts.
By the third modification of my invention I make a belt fastener suitable for a
butt joint, such improved fastener being made out of a continuous flat piece of
sheet metal, brass, alluminium, or other suitable metal or material, the continuous
flat piece of metal or material is formed with an arch m extending across the plate
in the centre of plate from end to end.
On each side of the arch are provided bolt holes the number of such bolt holes
varying in accordance with the size of the fastener.
-
In using the butt belt fastener made in the manner described in the third
modification of my invention I place the two belt ends to nearly touch, and secure
the fastener to the two belts by means of suitable bolts and nuts taking care to
secure the plate to the two belts so that the centre of the plate bridge will, be
directly over the intersection or butt joint of the two belts, I prefer in some cases
to form a roughened surface on the underside of the butt belt fastener.
The action and advantages of the various modifications of my improved fastener
are as follows:-
-
The introduction of the bearing plates behind the cotter-pins prevents the cotters
from sinking into. the material constituting the belt, the crossbars when under

page_text: strain from stretching of the belt in work, could not rip holes in the band until the
pressure from such crossbars had widened and forced the crossbar holes provided
in outside bearing plates, the introduction of the washer under the bearing plates
and the spring-pad between the two surfaces of belting lessens the impact of belt
joint against the pulley over which it passes.
Similar advantages also accrue in the use of the second modification and an
additional advantage is gained by forming the double bridge bearing plate, the
inside bridge surface taking a bearing on the extreme ends of both belts, producing
a back pressure to counteract the upward thrust of cross-bars.
The advantages of the third modification consists essentially in the bridge
yielding each time the belt passes over the pulley, the cord of the arch or
bridge being such as to permit the cord to lengthen when passing over the pulley,
by a compression of the whole of the convex periphery of arch, that is to say the
bending would not take place continually at the crown of the arch, but over the
whole internal surface of the arch, thus the bridge would continue to act as a safe
connecting point for the ends of belt, such belt fastener would not break when
passing over the pulley but would yield to the contour of pulley, such easy running
tending to prevent the shaft-bearing from wearing oval.
I will now proceed to describe in reference to the accompanying drawings the
manner in which the several modifications of my invention are constructed and used
similar letters refer to similar parts throughout the several views.
Figure 1. represents a side elevation of jump-joint belt fastener with single side
plates.
Figure 2. represents an end view of Figure 1.
Figure 3. represents an end view of plate with recess to receive cotter pin-
shewn as tightened up.
Figure 4. represents same as Figure 3. before it is tightened up.
Figure 5. represents a plan of Figure 1.
Figure 6. represents an end view of Figure 7.
Figure 7. represents a straight cross-bar.
Figure 8. represents an end view of Figure 9.
Figure 9. represents a curved cross-bar.
Figure 10. represents a side elevation of jump-joint belt-fastener with double
bearing plates.
".
Figure 11 represents an end view of Figure 10.
Figure 12 represents a plan of Figure 10.
Figure 13 represents an end view of double bearing plate.
Figure 14 represents a plan of butt-joint.
Figure 15 represents a section of Figure 14 on the line A B.
Figure 16. represents a plan of under strip.
Figure 17. represents a section of Figure 14 on the line C D.
Figure 18 represents a section of butt joint similar to Figure 14 excepting that
the bearing around stud is convex instead of concave.
Figure 19. represents a section of butt-joint similar to Figure 17 excepting that
the under-plate r is dispensed with.
Figure 20. represents a plan of Figure 19.
Figure 21. represents a section of Figure 19 on the line E F.
Figure 22. represents a butt-joint with the arch of plate formed on the bearing
side instead of on top side.
Figure 23 represents a plan of Figure 22.
a Figures 1, 2, 5, 10, 11, and 12 are the jump-joint cross-bars; 6 Figures 2, 7, 9
and 11 shew the cotter holes; c are the bearing plates; d are the inside bearing
plates;
e is the spring pad; fare the cotter pins; g h represent the two ends of the
belt; represents the bridge bearing plate of second modification, & Figures 14,
15, 17, 18, 19, 20, 22, and 23 represent the continuous flat plate of third modifi-
cation; m shews the arch extending across the flat plate; m shews the arch
inverted ;n shews the bolt holes and o shews the bolts.

page_text: In making the jump-joint with single bearing-plates c I prefer to make the plates
slightly concave as shewn at c Figure 2, so that when compressed by means of
cotter pins f, the plate will be straightened to form a flat bearing surface as shewn
at e Figure 2; I also prefer to make the single bearing plates, with a recess to
receive the cotter pin as shewn in end view at Figure 4 and as shewn (after
compression by cotter pin) at Figure 3.
The roughened surfaces of bearing plates are not shewn on the drawings because
the description of such roughened surfaces is clear and explicit.
The double bearing plate of second modification as shewn at Figure 11 is similar
to the two bearing plates shewn at Figure 2 the arch ; joining the side plates
together; concave cotter bearings are provided in some cases equivalent to the
bearings shewn at Figures 3 and 4 such concave bearings of bridged side plates
being clearly shewn at a Figure 13.
The roughened surface of butt-joint of third modification is not shewn in the
drawing the description given being sufficient to enable any experienced mechanic
to produce the roughened surface.
The strips r would be used with butt-belt fasteners suitable for wide belts such
as 7-in. 8-in. and upwards but the under strips would not be required for
narrow belts.
Each modification of my invention was carefully described in my Provisional
Specification.
The drawings and description in this my Complete Specification particularly
describes each modification thereof.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is,
1st. A jump-joint belt fastener made in the manner illustrated and described in
reference to Figures 1, 2, 3, 4, 5, 6, 7, 8, and 9.
2nd. A jump-joint belt fastener made in the manner illustrated and described in
reference to Figures 10, 11, 12, and 13.
3rd. A butt-joint belt-fastener made in the manner illustrated and described in
reference to Figures 14, 15, 16, 17, 18, 19, 20, 21, 22, and 23.
Dated this 14th day of June 1892.
ALFRED WILLIAM TURNER,
Cobden Buildings, Corporation Street, Birmingham,
Agent for the Applicant.