Improvements in and connected with Belt Fasteners.
Year: 1894

page_text: Date of Application, 1st Sept., 1894
Complete Specification Left, 1st June, 1895-Accepted, 6th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in and connected with Belt Fasteners.
I, ISAAC JACKSON of Glossop in the County of Derby, Belt Fastener
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to belt fasteners of the bolt type, that is to say, to
fasteners which connect the ends of the belt by means of a bolt with or without
the intervention of plates washers and the like, and its object is to enable the bolts
to be more readily removed, to prevent their rotation when their nuts are being
tightened and to lessen the risk of the head of the bolt being pulled through the
belt.
For the latter purpose I may when the head of the bolt is used in contact
with the substance of the belt, form around the head a beaded or corresponding
rounded part which will prevent any cutting of the material of the belt by the
edge of the bolt head.
In a similar case, that is to say when the head of the bolt is used in contact with
the belt, I may for the purpose of preventing the rotation of the bolt, form on the
under side of the head one or more wings or projections which will engage with
the substance of the belt and so prevent the rotation.
When a washer is used under the head of the bolt, and in other cases, I may
form one or more longitudinal Hutes grooves or flats along the stem of the bolt
cutting through the screw threads. In the hole of the washer, which is provided
with teeth or fangs I form corresponding projections adapted to engage with the
flute or flutes or the like formed in the stem of the bolt. The washer being engaged
thus with both the substance of the belt and with the stem of the bolt, the latter
cannot rotate. The fluting or the like also enables the nut to be more readily
removed in cases when the bolt or the nut has become corroded, since the exposed
ends of the screw threads will cut through the corroded parts.
This purpose may
also be effected in cases where it is not desired to flute the bolt stem, by forming
a flute or the like or two or more flutes, longitudinally through the nut screw
thread.
Preferably also instead of forming the screwed stem of the bolt with a circular
cross section, I form it slightly elliptical.
Dated this 31st day of August A.D. 1894.
WILLIAM E. HEYS,
Agent for the Applicant.
Improvements in and connected with Belt Fasteners,
I, ISAAC JACKSON of Glossop in the County of Derby, Belt Fastener
Manufacturer, 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:—
This invention relates to belt fasteners of the bolt type, that is to say to fasteners

page_text: which connect the ends of the belts by means of a bolt with or without the inter-
vention of plates washers and the like, and its object is to enable the bolts to be
more readily removed, to prevent their rotation when their nuts are being
tightened and to lessen the risk of the head of the bolt being pulled through the
belt.
For the latter purpose. 1. may when the head of the bolt is used in contact with
the substance of the belt form around the head a beaded or corresponding rounded
part which will prevent any cutting of the material of the belt by the edge of the
bolt head.
In a similar case, that is to say when the bolt bead is used in contact with the
belt, I may for the purpose of preventing the rotation of the bolt, form on
the under side of the head one or more wings or projections, which will engage
with the substance of the belt and so prevent the rotation.
When a washer is used under the head of the bolt, and also in..other cases. I. may
form one or more longitudinal flutes grooves or flats along the stem of the bolt
cutting through the screw threads. In the hole of the washer, which is provided
with teeth or fangs I form corresponding projections adapted to engage with the
flute or flutes or the like formed in the stem of the bolt. The washer being thus
engaged both with the substance of the belt and with the stem of the bolt, the
latter cannot rotate. The fluting or the like also enables, the, nut to be more
readily removed in cases where the bolt or the nut has become corroded, since the
exposed ends of the screw threads wall cut through the, corroded parts. This
purpose may also be effected, in cases where it is not desired to flute the bolt stem,
or even in addition thereto, by forming, as flute-slot or the like, or two or more such
flutes or slots cutting through the screw thread of the nut.
.Preferably also instead of forming the screwed stem of the bolt with a, circular
cross section, I form it slightly..elliptical.
In order that any invention may be more clearly understood I have hereto
appended a sheet of drawings to which I make reference: hereinafter.
I
Figure 1.shews in elevation a. complete belt fastener constructed according to
part of my invention. The bolt A which is shewn more clearly and by itself in
Figure 2 is formed with one or more flutes slots or the like B which cat through
the screw thread and form cutting edges thus enabling the bolt and, nut to be easily
separated, even when rusted or corroded. Cutting edges may similarly be formed
in. the nut C.by slotting or grooving its upper, part at D, the slot Dadditionally
serving as a keyway by which the nut may be tightened or loosened. .E. is a cupped
or dished top plate or washer such as is usually employed in this type of belt
tastever. The washer and the nut are shewn in section in Figure 3. F is a washer
which fits over the bolt head and is furnished with fangs or the like to engage with
the substance of the belt.
Figures 4, 5, and 6 illustrate the bolt and washer, in, elevation, section, and plan
respectively. The hole of the washer, F, is formed or provided with, projections G
which engage with the flutes or the like in the bolt A and prevent the latter from
rotating when its nut is being turned. As shewn in Figures 2 and 5 it is preferred
to make the bolt head slightly concave.
Figures 7 and 8 represent in elevation and in section a bolt designed for use
without a washer. In this case the head of the bolt A is formed on its inner face
with webs projections or the like J which are adapted to engage with the belt and
prevent rotation. In addition the bolt head, is also preferably beaded or rounded
at its edge as shewn at H to prevent cutting and spreading of the belt. As before,
the bolt stem may be flated. or slotted. (C. is a cupped anat mhich may be slotted
similarly to the nut before described. In place of the slot and keyway D or in
addition thereto if desired, one or more holes' K: may be formed in the-nut C and
engaged by a suitable key.
Figures 10 and 11 shew in plan and longitudinal-section respectively a joint
fastened by belt fasteners constructed according to this invention. 'A'A are the

page_text: bolts which pass through the top plates or washers L and are engaged by the nuts C..
With this form of joint it is preferred to employ a leather safe M.
The nuts C may if desired be furnished with a slot D', Figure 12, which passes
downwards through the screw threads in addition to or in substitution for
the slot or keyway D previously described. A nut of this description is especially
applicable for other uses in situations exposed to damp or corroding vapour or
substances.
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 :-
1. In a belt fastener, a bolt formed with a flute or slot or flutes or slots and the
like, substantially as and for the purpose hereinbefore described and as illustrated
by the accompanying drawings.
2. In a belt fastener, a washer adapted to engage both with the belt and with
the bolt, substantially as and for the purpose herein before described and as
illustrated by the accompanying drawings.
3. In a belt fastener, a bolt having its head formed or provided with webs pro-
jections or the like, substantially as and for the purpose herein before described an 1
as illustrated by the accompanying drawings.
4. In a belt fastener, a bolt having its head formed with a beaded or similar
edge, substantially as herein before described and as illustrated by the accompanying
drawings.
5. In a belt fastener, a nut provided with a slot or the like cutting through the
thread substantially as and for the purpose hereinbefore described and as illustrated
by the accompanying drawings.
6. Belt fasteners of the bolt type constructed and arranged substantially as
hereinbefore described and as illustrated by the accompanying drawings.
Dated this 30th day of May A.D. 1895.
WILLIAM E. HEYS,
Agent for the Applicant.