Year: 1898

page_text: I, EDWARD Moss MITTON, the Younger, of the Firm of Ewen and Mitton, of
Smithfield Works, Sherlock Street, in the City of Birmingham, Engineers, do
hereby declare the nature of this invention to be as follows:-
My invention has for its object the construction of machines for the rapid and
economical production of indented nails, and comprises the arrangement and
combination with an ordinary wire nail machine of simple and effective means for
the indentation of the wire as it is fed forward from the coil or drawn into the
machine.
In the application of my invention to a machine having the usual tools and
appliances for the production of ordinary wire rails, I dispense with the plain
straightening rollers employed at the front or feed end of the machine, and in
place of the same I arrange two pairs of combined straightening and indenting
tools, such tools consisting preferably of steel discs or rollers having tooth like
projections formed around their peripheries. One pair of the discs or rollers
are disposed or arranged horizontally and the other pair vertically and both
pairs are positively driven or revolved by gearing operated from the main shaft
of the machine by means of a side rod and ratchet connection, or in any other
convenient manner.
The horizontally and vertically disposed discs or rollers are provided with
projecting flanges which serve as guides for the wire as it is drawn from the coil
or drum into the machine. As the wire passes between the tooth like peripheries
of the discs or rollers its surface is indented, the pitch of the indentations cor-
responding with the pitch of the tooth like projections of the rollers. The
indented wire then passes into the machine where it is cut up and formed into
nails in the usual manner.
By forming the tooth like projections around a portion only of the peripheries
of the discs or rollers, the wire can be so indented that a portion of each nail
shall be left plain or not indented.
I sometimes employ but two indenting tools instead of four as hereinbefore
described, and make such modifications in the form and arrangement of the
tools as may be necessary to suit the indentation required upon the nails to
be produced.

page_text: Improvements in Nail Making Machines.
I, EDWARD Moss MITTON, the Younger, of the Firm of Ewen and Mitton, of
Smithfield Works, Sherlock Street, in the City of Birmingham, Engineers, 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 follow-
ing statement:
My invention has for its object the construction of machines for the rapid and
economical production of indented nails, and comprises the arrangement and
combination with an ordinary wire nail machine of simple and effective means for
the indentation of the wire as it is fed forward from the coil or drawn into the
machine.
In the application of my invention to a machine having the usual tools and
appliances for the production of ordinary wire nails, I dispense with the plain
straightening rollers employed at the front or feed end of the machine, and in
place of the same I arrange two pairs of combined straightening and indenting
tools, such tools consisting preferably of steel discs or rolls having tooth like
projections formed around their peripheries. One pair of the discs or rolls
are disposed or arranged horizontally and the other pair vertically, and both
pairs are positively driven or revolved by gearing operated from the main shaft
of the machine by means of a side rod and ratchet connection, or in any other
convenient manner.
The horizontally and vertically disposed discs or rolls (or one of each) are pro-
vided with projecting flanges which serve as guides for the wire or rod as it is
drawn from the coil or drum into the machine. As the wire passes between the
tooth like projections from the peripheries of the discs or rollers its surface is
indented, the pitch of the indentations corresponding with the pitch of the tooth
like projections of the rollers. The indented wire then passes into the machine
where it is cut up and formed into nails in the usual manner.
By forming the tooth like projections around a portion only of the peripheries
of the discs or rolls, the wire can be so indented that a portion of each nail shall
be left plain or not indented.
I sometimes employ but two indenting tools instead of four as hereinbefore
described, and make such modifications in the form and arrangement of the
tools as may be necessary to suit the indentation required upon the nails to
be produced.
Referring to the two accompanying sheets of explanatory drawings.
Figure 1, on Sheet 1, is a side elevation and Figure 2 on Sheet 2, an end eleva-
tion representing the arrangement and combination in one manner of my indent-
ing tools and appliances with an ordinary wire nail making machine.
Figure 3 is a view, to a larger scale, of a portion of the periphery of an indent-
ing roll.
Figure 4 represents a finished indented nail as produced in one of my improved
machines.
The same reference letters in the different views indicate the same parts.
On the front or feed end A of an ordinary wire nail making machine I bolt
or otherwise secure an extension A', and mount upon such extension, in suitable
bearings, a pair of vertically disposed indenting rolls as B B¹, and a pair of
horizontally disposed indenting rolls C C². The gear for positively driving the
said rolls B B and C C' is operated preferably from the main shaft of the
machine by means of a reciprocating side rod as D with a ratchet connection as

page_text: shown. The vertically disposed rollers B B¹ receive their motion through the
gear wheels E, F, G, and H, and from the shaft of the upper roll B the necessary
motion for driving the horizontally disposed rolls is transmitted through the
bevel wheels J, K, L, and M. The shafts of the horizontally disposed rolls are
geared together by the wheels N and O.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:
1. In nail making machines, indenting the surface of the wire or rod as it
is fed into the machine, substantially as described.
2. In nail making machines, the use of combined straightening and indenting
tools, substantially as described.
3. The combination with a nail making machine of indenting tools and
mechanism, substantially as described and as illustrated.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, and 25, Cross Street, Manchester,
Agents for the Applicant.