Improvements in the Manufacture of "Dog Spikes" and other Fastenings, and in Blanks therefor.
Year: 1893

page_text: Date of Application, 16th Feb., 1893
Complete Specification Left, 10th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of "Dog Spikes" and other
Fastenings, and in Blanks therefor.
We, CHARLES MARCH, Managing Director, and WILLIAM DICK, Foreman,
both of Clyde Nail Company, Limited, Newton, in the County of Lanark, do
hereby declare the nature of this invention to be as follows
This invention relates to the manufacture of dog spikes and other fastenings and
it has for its object to produce a spike or fastening which shall have a rearwardly
projecting fin or flange at the back of the head by the insertion under which of any
ordinary lever, chisel or prise, the spike or fastening may be withdrawn without the
provision of a tool specially prepared for that purpose as is ordinarily the case, and
in which the head of the spike or fastening is formed by bending or folding over a
portion of the blank.
In carrying the invention into practice under one modification the strip of metal,
from which the spikes or fastenings are to be manufactured, is rolled with a rib or
web extending throughout its length at a short distance from that edge of the strip
from which the head is subsequently to be made. The under surface of the strip is.
or may be flat or tapered throughout its width or it may be flat. for a portion of its
width only the remainder being tapered. From the rib or web on the upper
surface to that edge of the plate which is to constitute the body and point of the
spike or fastening the upper surface of the plate is or may be tapered in thickness
or it may be flat throughout a portion of the said length and tapered on the
remainder whilst from the other side of the rib or web to the edge of the strip
which is to be formed into the head of the spike or fastening any desired contour
may be given to the upper surface according to the shape the head of the spike or
fastening is to assume.
The strip is cut into blanks each corresponding to one spike or fastening and the
said blanks are gripped between dies at a point near or embracing the rib or web,
and between the said rib or web and the point of the spike or fastening which
being effected the head of the spike or fastening is formed by bending over the
portion of the blank between the other side of the rib or web and the edge of the
strip.
Under a second modification the blank from which the spike or other fastening
is to be manufactured may be cut from an ordinary flat plate or strip in which case
the cutting knives or dies are so arranged that in first operating on the plate or
strip a section is cut off which throughout the major part of its length has its sides
parallel. The inner parallel side is terminated at a point short of one edge of the
plate or strip from which point the cut is bevelled or inclined so as to make one
end of the cut off section broader than the other. The section so cut off is a waste
piece and in further proceeding to manufacture blanks from the plate or strip the
plate is first turned over so that what was previously its under becomes its upper
surface and the inclined portion made by the previous cut is reversed in position
from right to left or vice versa. The plate is then fed into the machine a distance
equal to the breadth of a blank and the cutting knives or dies again brought into
operation whereby a blank is produced which towards one end is bevelled or
inclined from the previous cut to the edge of the strip where it meets the last made
cut. This said end constitutes the point of the spike or fastener. Towards the
other end the bevel inclines away from the last made cut to the edge of the plate
thereby giving greater breadth to this end of the blank which end is subsequently
bent over or staved to constitute the head of the spike or fastening a back fin or
flange for the purposes hereinbefore. set forth being produced or not in the head

page_text: forming operation. The plate or strip is reversed after the severance of each
individual blank.
Under a third modification the cutting knives and dies may be so arranged that
the heads of the blanks as they are severed from the flat plate or strip shall be
partially set or bent over. With this method of manufacture in commencing with
a new plate or strip the cutters instead of first severing a waste piece extending
quite across the end of the plate take out of the end a section or waste piece
extending from one edge to a point short of the other edge. Throughout the major
part of its length the sides of this waste piece are parallel but from a point short of
the end of it which extends to the edge of the plate the cut is bevelled or inclined
to a point whilst at the other end the cut is curved or is in the form of an arc or
this end may also be bevelled or inclined. When this waste piece has been
removed the plate is turned over and fed forward the breadth of a blank and the
cutters or knives being again brought into operation a blank is severed which has
the front edge of its head parallel to and from its lower end curving or inclining in
to the front edge of the shank or stem. The top of the head is at right angles to
the front edge and the line of junction between it and the back edge of the blank is
bevelled or inclined and corresponds with the bevel first referred to in severing the
waste pieces whilst the lower end of the back edge curves or sweeps round to the
front edge. Only one blank of this formation is cut from each plate as when
the plate is again turned over and the cutters brought into operation the inclined
back edge of the head of this blank coincides with the front edge of the head of the
next blank which being severed has both the front and back edges of its head
inclined forward the setting over of the head of the finished spike or fastening being
thus partially effected in producing the blank.
Dated this Fifteenth day of February 1893.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of "Dog Spikes" and other
Fastenings, and.in Blanks therefor.
We, CHARLES MARCH, Managing Director and WILLIAM DICK, Foreman,
both of Clyde Nail Company, Ltd., Newton in the County of Lanark, 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 the manufacture of "dog spikes" and other fastenings
and it is illustrated by the several figures on the accompanying drawings,
Figure 1 being a diagram of the plate shewing the method in which it is cut and
Figures 2, 3 and 4 details of the blank severed from the plate.
Under the invention the cutting knives are so arranged that the heads of the
blanks as they are severed from the plate or strip are partially set over and in
commencing with a new plate or strip the cutters sever a waste piece which instead
of reaching quite across the plate forms a section a extending from one edge to
a point short of the other. Throughout the major part of its length the contour
of this waste piece is straight but from a point 6 short of the end of it which
extends to the edge of the plate the cut is bevelled or inclined whilst at the other
end c the cut is curved or is in the form of an arc or this end may also be
bevelled or inclined. When this waste piece a has been removed the plate is
turned over and fed forward the breadth of a blank and the cutters or knives
being again brought into operation a blank d is severed which has the front edge h
of its head parallel to and from its inner end curving or inclining in to the front
edge of the shank or stem. The top d' of the head is at right angles to the
front edge and the line of junction between it and the back edge of the

page_text: blank is bevelled or inclined and corresponds with the bevel first referred to in
severing the waste pieces a whilst the other end e of the back edge curves or
sweeps round to the point where the bevel of the waste piece a commences.
Only one blank of this formation is cut from each plate as, when the plate is again
turned over and the cutters brought into operation, the inclined back edge / of
the head, coincides with the front edge g of the head of the next blank which,
being severed, has both the front and hack edges of its head inclined forwards as
shewn by Figure 4 the setting over of the head of the finished spike or fastening
being thus partially effected in producing the blank.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
The method herein before described and illustrated on the accompanying drawings
of cutting blanks for the production of dog nails or spikes.
Dated this 9th day of November 1893.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow, Agents.