Nails and Rivets and in Machinery for Making the same.
Year: 1886

page_text: Date of Application, 2nd Apr., 1886.
Complete Left, 3rd Jan., 1887.
Complete Accepted, 4th Feb., 1887.
Nails and Rivets and in Machinery for Making the same.
We, EDWIN JAMES PRESTON of the firm of J. Stone & Co. of Deptford in the
County of Kent, Engineers, and THOMAS ALLART in the employ of the said firm, do
hereby declare the nature of this invention to be as follows:-
These nails or rivets are made from wire of copper, zinc, mixed metal or other
suitable material and formed with corrugations from close under the head over their
entire length excepting that part of their length forming the tapered point if so made
thus giving much greater resistance to any tendency to loosen after being fixed in
place and forming a much closer and tighter joint between the two surfaces nailed or
riveted together.
For the manufacture of these corrugated wire nails or rivets steel rollers with
V shaped indented grooves suitably fixed in a framing or brackets which by proference
are attached to or form part of the main frame of a nail or rivet making machine.
These rollers receive intermittent feed or motion for instance by the revolving of a
ratchet wheel actuated by rods or levers connected to the main shaft of the nail or
rivet machine proper and are thus caused to draw in the wire and to corrugate it and
feed it towards the dies in the machine or that part of the machine which heads and
points the nails or rivets allowing a proper interval in the feed for heading the nail
or rivet.
Means are provided to adjust the rollers to suit the varying thicknesses of wire and
the depth of corrugation as may be required, for instance by adjusting screws and cam
or crank and lever action.
JENSEN & SON,
For the Applicants.

page_text: Nails and Rivets and in Machinery for Making the same.
We, EDWIN JAMES PRESTON of the firm of J. Stone & Co. of Deptford in the
County of Kent Engineers and THOMAS ALLART in the employ of the said firm 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:
These nails or rivets are made from wire of copper, zine, mixed metal or other
suitable material and formed with corrugations from close under the head over their
entire length excepting that part of their length forming the tapered point, if so
tapered, thus giving much greater resistance to any tendency to loosen after being
fixed in place and forming a much closer and tighter joint between the two surfaces
nailed or riveted together.
For the manufacture of these corrugated wire nails or rivets steel rollers with
V-shaped indented grooves are suitably fixed in a framing on brackets which by
preference are attached to or form part of the main frame of a nail or rivet making
machine.
In the drawings Figure 1 shows in front elevation such an arrangement of stoel
rolls A and A' with V shaped indented grooves, having their bearings in brackets B
and B respectively on framing C which latter is here shown as intended to be attached
to the main frame of a nail or rivet making machine, (not shown in the drawings).
These rolls A and A¹ receive intermittent feed or motion, for instance by the device
shown at Figure 1, which consists of a ratchet wheel D, and a pawl E fixed in a
hanging bracket E moving freely on the shaft or axle D of the ratchet wheel D and
lower grooved roll or roller A. Rocking motion is imparted to the bracket E¹ and
pawl E by the connecting rods F and F from the main shaft G of the nail or rivet
making machine proper. The rod is jointed to the adjustable crank F2 which is
fixed on the main shaft G and revolving with it imparts the necessary to and fro
motion to the connecting rod F which imparts motion to the rocking lever H' which
is keyed on the weigh shaft J. The rod F is capable of adjustment on the rocking
lever H by the screw so as to give the required feed to the wire which is passed
between the corrugating rolls A, A, according to the length of nails or rivets to be
made. The slot in the end of the connecting rod F₁ allows the necessary lost
motion, during which interval in the feed the heading and cutting are effected. The
movement of the bracket E' and thus also that of the pawl E and thereby the feed of
the rolls A A¹ is further regulated by the screw f which on being turned one way or
the other brings that end of the connecting rod F nearer to or further from the centre
of the shaft D. When the throw of the bracket E has been adjusted as required
the screw handle f¹ is tightened up and thereby clamps the screw and prevents it
from turning and thereby altering the amount of motion which is to be given to the
said bracket E.

page_text: The grooved rollers A A¹ are by these means caused to draw in the wire inter-
mittently. The wire is indicated by the dotted line a² in Figure 1. It is drawn from
the drum or roller K and passed between the rolls A A¹ whereby it is corrugated,
giving it the appearance shown in side view at Figure 2 and in section at Figure 3
and fed towards the dies in the machine or that part of the machine which heads and
points the nails or rivets, allowing a proper interval in the feed for heading the nails
or rivets.
The rollers A and A¹ are made adjustable to suit the varying thicknesses of wire and
the depth of corrugations, as may be required for instance, by the adjusting screws a
and a on the jointed bracket arms B' and the lever with any suitable connections
is provided for momentarily raising the roll A' with its jointed bracket B' and thereby
disengaging said roll from the lower roll A.
The finished nail will have the appearance shown in Figure 4, which represents a
part section of planking showing the nail in position and riveted over the washer
shown in section. Or the nail may have the form shown in Figure 5 with flat instead
of raised head and with pointed end instead of employing a riveted end and washer.
Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed we declare that what we claim is :-
First. The manufacture of corrugated wire for nails and rivets substantially as
described.
Second. The manufacture of corrugated nails and rivets from corrugated wire.
Third. The machine for making corrugated wire consisting of rolls provided with
V-shaped indented grooves and having adjustable intermittent feed substantially as
described.
EDWIN JAMES PRESTON.
THOMAS ALLART.
By Jensen & Son,
77, Chancery Lane, London, W.C.,
Patent Agents.