PAYING Frongs.
Year: 1888

page_text: Date of Application, 28th Mar., 1888
Specification Accepted, 4th May, 1888
PAYING Frongs.
I, PAULIN ADNET, of Monthermé Ardennes in the Republic of France Mechanical
Engineer 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 :-
The method of manufacturing forks and other objects having prongs heretofore in
use consists in roughing out a blank, drawing or forging out the same to produce the
tines and the shank and curving the same to the desired degree.
The following improvements are designed to simplify and cheapen the cost of the
manufacture and they consist principally in the judicious use of processes of lami-
nating rolling or swaging by which the forks or the like may be formed so that they
have only to be pointed and curved to produce a complete fork or object required.
The carrying out of the improvements in the manner hereinafter described with
reference to the accompanying drawings permits of great economy of material by
reducing the amount of waste cuttings-The swages, dies, or moulds that are
employed may be arranged as a roller mill or stamping press or formed upon a
cylinder and table operating in the known manner, the cylinders plates or the like
employed having the matrices or moulds formed in their surfaces corresponding to
the objects to be manufactured. The rolling or moulding is effected by one or
several passes either piece by piece or in a row of successively following pieces, in
which latter case the moulds or matrices are so assembled that tho films or webs
formed (which are inevitable with such system) may be as small as possible. When
three-tined forks are to be made, the outer tines a bare preferably approached to the
central tine c so that less loss of metal may occur.
Forks rolled or stamped out according to this system are shown in Fig. 1 x y
being the film or web joining the several forks-They may however be formed with
their tines roughed out only as shown in Fig. 2. though the latter system is not
so conducive to economy of material. To remove the films x y. the forks are placed
upon a suitable matrix and the films are cut off by suitable swages or dio stamps
The outer tines are then bent out and the whole fork is curved in the usual manner.

page_text: The tines of the fork formed as shown in Fig. 2 are finished by lengthening them
one after the other or all simultaneously by a suitable roller mill or the like-The
shank d may be in the form of a rectangular or round tang adapted to be inserted
into a socket, as shown in Fig. 1, or it may be in the form of a socket integral
with the fork and formed by the same system in which case the rollers or their
equivalents are provided with matrices adapted to form the socket as extended, or
to form a reserve from which the socket may afterwards be formed.
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 ;-
In the manufacture of pitch forks and similar objects having prongs or tines,
the laminating in one or more passes, of one blank or a series of blanks connected
by films or webs, and the removal of said films by swaging or otherwise, whereby
a fork or forks or other object required is substantially completed-or is so formed
that subsequent curving or other operation substantially as set forth is necessary
to complete the same.