Year: 1885

page_text: I WILLIAM RANDALL HARRIS of number 5 Sussex Street, Lower Broughton,
Manchester in the County of Lancaster Machinist do hereby declare the nature
of this Invention to be as follows:-
My Invention relates to the fasteners adapted for use in attaching together the
ends of the leather straps or belts employed in transmitting movements in and to
machinery as is well understood. In the year 1867 Letters Patent bearing date
the sixteenth day of March and numbered 760 were granted to me for a metal
strap fastener having rows of pins or spikes which were caused to penetrate the
material of the two belt ends to be connected. In my present invention I also
employ a metal back plate provided with pins or spikes but in addition I provide
clamping parts designed to be hammered pressed or bent down over the edges of
the belt ends in order to render the fastening more secure. These clamping parts
may be in the form of ribs or webs projecting from the back plate or of serrated
webs or plates or of isolated teeth spikes or clamps. These clamping parts would
by preference be cast in one piece with the rest of the fastener which would be
produced as malleable castings but I do not confine myself to this. The spikes
would be driven into the belt ends as is usual and the attachment would be further
secured by hammering, pressing or bending over and down the clamps upon the
belt ends. To keep the metal as much as possible from contact with the pullies
I may make the back plate more hollow or concave than usual. I at present
consider that serrated teeth disposed in positions intermediate with the spikes will
be the most efficient and suitable.

page_text: I WILLIAM RANDALL HARRIS of number 5, Sussex Street, Lower Broughton,
Manchester in the County of Lancaster, Machinist, 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 and accompanying
drawings:
-
My Invention relates to the fasteners adapted for use in attaching together the
ends of straps or belts employed in transmitting movements in and to machinery
as is well understood. In the year 1867 Letters Patent bearing date the sixteenth
day of March and numbered 760 were granted' to me for a metal strap fastener
having rows of pins, teeth, or spikes which were caused to penetrate the material
of the two belt ends to be connected. In my present invention I also employ a
metal back plate provided with teeth or spikes but in addition I provide clamping
parts designed to be hammered, pressed or bent down over the belt ends in order
to render the fastening more secure.
My Invention will be more perfectly understood when described with reference
to the accompanying sheet of drawings wherein Fig. 1 represents an end view and
Fig. 2 a side view of one of my improved fasteners. The remaining figures are
illustrative of the employment of the fastener in securing together two portions of
a driving belt Fig. 3 representing a longitudinal section taken on the line A. B. in
Fig. 4, which latter is a view of the inside of the belt that is to say of the side
which comes into contact with the peripheries of the pullies when the belt is at
work. Fig. 5 is an outside view. In the said Figs. or in Figs. 1 to 4 a is the back
plate of the fastener and b. b. are the teeth or spikes which project from the
concave underside of the said back plate as is usual in this description of fastener.
The clamping parts or clamps which I employ in accordance with my present
invention are indicated by c. c. The fastener illustrated in the drawings is
supposed to be cast all in one piece and annealed or softened as in the ordinary
method of making malleable castings. The clamps c. c may consist of ribs or
webs projecting from the back plate or of serrated webs or plates or of isolated
teeth, spikes or pins. In the example the said clamps consist of isolated or nearly
isolated spikes or teeth which taper both in width and thickness from their
connection with the plate to their outer ends this being the construction and
form which I now consider to be suitable. In the application of the fastener the
ordinary teeth or spikes b. are driven into the belt ends as when fixing the fastener
formed in accordance with my former invention the ends of the belt being brought
as closely as possible to the clamps c. When the fastener has been thus applied
in the ordinary manner the attachment is rendered more secure by hammering
pressing or bending over and down the clamps upon the material of the belt ends
so that the said ends become tightly clamped against the inner surface of the back
plate as clearly indicated in Figs. 3 and 4. The teeth b. may or may not extend
through the material of the belt so as to be to some extent clenched or riveted by
the hammering operation. To keep the metal as much as possible from contact
with the pullies or drums when the belt is in use I prefer to make the back plate

page_text: a little more concave than in the case of the ordinary or old form of fastener. In
the example the clamps c. are arranged to enter between the teeth b. in the inner
row of the same this being the arrangement I prefer. In place of the clamps c.
formed as teeth I may use thin projecting ribs either plain or serrated at their
outer edges so as to clear the inner row of teeth 6 or I may use any suitable clamps
or parts which can be bent over and down upon the belt ends to clamp the same to
the back plate. It will be understood that the fastener will be made in various
sizes to suit the varying widths and strengths of the belting only one size being
illustrated in the drawings. I do not confine myself to the casting or forming of
the clamps c. in one piece with the back plate a. although I prefer this method of
formation. The clamps might be formed in a separate piece riveted or secured to
the back plate or might be passed into position through slots or holes in the back
plate as for example flat wire staples might extend through holes in the back plate
so that the limbs would project inside as indicated in Fig. 6. The improved strap
fastener may be used in the connecting together of the parts of straps or bands
otherwise used than in transmitting movement in and to machinery.
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:
1. The strap fastener formed substantially as and for the purpose set forth and
indicated hereinbefore and in and by the accompanying drawings.
2. In a strap fastener having holding teeth b. cast on a back plate a the
clamps c. c. substantially as and for the purpose set forth and indicated.
3. In a metal strap fastener the combination of a metal back plate provided with
teeth to be driven into the substance of the parts to be secured with clamping
teeth, ribs, plates or projections adapted to be bent or clamped down upon the ends
of the parts to be secured together substantially as set forth.
OLL
د
1000
DUTTON & FULTON,
Agents.