Improvements in Machines for Heading Nails, Bolts, Screws, Pins, or other analogous Articles.
Year: 1894

page_text: Date of Application, 25th July, 1894
Complete Specification Left, 6th Feb., 1895-Accepted, 16th Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in Machines for Heading Nails, Bolts, Screws, Pins,
or other analogous Articles.
:
I HENRY WILLIAM TONKS, of Hockley Hill, in the City of Birmingħẩm,
Engineer, do hereby declare the nature of this invention to be as follows :—
This invention relates to improvements in machines for heading nails, screws,
bolts, pins, or other analogous articles, and more particularly refers to that part or
parts of such machines whereby the heading process is accomplished.
In most if not all of such machines at present in use this operation is effected by a
blow or blows from a spring, which said spring. (or springs) has been previously
compressed (or elongated) so that upon its release the blow is delivered. This
entails considerable wear and tear upon the machine, and is very noisy and
unpleasant.
In this my invention however, I dispense with such springs and provide a cám
(or cams) having upon its surface one, two or more "upsets" or lumps, which, as
the shaft revolves shall successively come into operation against the heading tool
or slide in such a manner that the metal shall be headed by one or a number of
rapid squeezings. Generally about three of such upsets would be adopted.
Further, I arrange in some instances in connection with the feed mechanism of such
machines, that the heading tool or such other parts as may be necessary shall be
carried upon a swinging hinge or pivots, or upon a crossway slide so that by
suitable mechanism it shall be intermittently moved automatically to the one side,
that is, out of the way, to permit of the feeding operation taking plače.
The beforementioned cam may be made to act direct upon the heading tool or
slide &c., or intermediary mechanism may be employed.
Dated this 24th day of July #894.
CHARLES T. POWELL!
Applicant's Agent.
F HENRY WILETA TONKS; of Hockley Hill, in the City of Birmingham,
Engineer, do hereby declare the dature of this invention and in what manner the
same is to be performed, to be particularly described and asĉèŕtáineď in' and by
the following statement:
This invention relates to improvements in machines for heading fails, screws,
bolts, pins, or other analogous articles, and more particularly refers to that part or
parts of such machines whereby the heading process is accomplished.
In most if not all of such machines at present in use this operation is effected by
a blow or blows from a spring, which said' spring (or springs) has been previously
compressed (or elongated) so that upon its release the blow is delivered. This
гр.

page_text: entails considerable wear and tear upon the machine, and is very noisy and
unpleasant.
In this my invention, I dispense with such springs and provide a cam (or cams)
having upon its surface one, two or more "upsets or lumps, which, as the shaft
revolves shall (when more than one) successively come into operation against the
heading tool or slide in such a manner that the metal shall be headed by one or a
number of rapid squeezings.
Further, I arrange in some instances in connection with the feed mechanism of
such machines, that the heading tool or such other parts as may be necessary shall
be carried upon a swinging hinge or pivots, or upon a crossway slide so that by
suitable mechanism it shall be intermittently moved automatically to the one side,
that is, out of the way, to permit of the feeding operation taking place.
The beforementioned cam may be made to act directly upon the heading tool or
slide &c., or intermediary mechanism may be employed.
In order to more particularly describe and explain this my invention, I have
appended hereunto an illustrative sheet of drawings upon which are figures and
numbers of reference, similar numbers referring throughout the several views to the
same thing or part.
Fig. 1, is a plan view of a machine embracing this my invention.
Fig. 2, is a view in side elevation of the said machine.
Figs. 3 to 10 inclusive show various views of certain detached parts in detail, as
hereinafter explained.
Upon the bed or frame 14, are prepared bearings 15, 15, to receive the main
shaft 16, which is driven by the pulleys 17, or other suitable driving gear.
18, 18, are the cutting (or nipping off) levers, fulcrumed at 19, 19, and operated at
their one end by cams 20, 20, acting upon the rollers 21, 21, while at their front
ends 22, the said levers are made to act upon the cutting off tools which are carried
in the block part 23. 24, is the feed grip which is carried upon the arm 25 which
latter slides in the guide 26, the necessary reciprocating motion being imparted thereto
by means of the connecting link 27, which latter is adjustably connected to the
rotating plate 28, upon the shaft 16. The dotted line 29, indicates the wire from
which the nails are to be made, which is being fed into the machine through the
straightening rollers 30. At 31, is fulcrumed the lever 32, (see also Fig. 10) which
is connected to the operating lever 33, by means of the link 34, the said lever 33,
being actuated by the cam 35, upon the main shaft. This lever 32, is operated for
the purpose of pressing down the top grip tool 36, which holds the wire during the
process of heading. At 37 is fulcrumed the knocking off lever 38, which carries
the adjustable knocking off tool 39. Thus far the general arrangement and
operation of these parts are similar to those of ordinary machines.
In this my invention however 1 carry the heading tool 40, in a slide 41, which in
its turn is carried in the swinging bracket 42, which latter is pivoted upon the
pins 43 and 44. Working in conjunction with this bracket 42, is the intermittent
reciprocating slide 45, which is operated by the lever 46, which is pivoted at 47, the
said lever being actuated by the cam 48. Upon this slide 45, is the fork 49, which
embraces the bracket 42, (see Fig. 4) so that as the slide 45, is moved in either
direction, the bracket 42, is similarly moved to or from the upright position as
shown in dotted lines, in order to bring the beading punch 40 into line with the
wire to be headed, or to remove it to the one side so as to admit of the headed wire
to move forward for being cut off. A spring 50 is used which tends to keep the
slide 45 &c. to the one side of the centre line of the machine. To ensure the return
of the heading punch from the headed wire, the outstanding peg 51, is secured to
the slide 41, and against this operates the lever 52, fulcrumed at 53 and operated by
spring 54. In case however that the said spring 54, should fail to withdraw the
heading punch, through it sticking fast to the wire or from other cause, it is
arranged that the cam 55 upon the main shaft shall force it to move. Except in
such stubborn cases however the spring 54, is sufficient for the purpose. This
heading tool 40, and slide 41, is operated by means of the intermediate slide 56, by

page_text: the cam 55. This cam may be varied in shape so that the sudden squeeze upon the
wire may be continuous, or, in two or more graduated steps. The roller 57, is an
antifriction roller upon the slide 56, to receive the pressure from the cam. 58, is
merely a thrust block of ordinary make and secured to the bed of the machine to
support the main shaft upon the collars 59, 59, and adjusted by the set pin 60.
Having now particularly described and ascertained the nature of this my said.
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination in a machine for heading nails, bolts, screws, pins or other
analogous articles, with the shaft 16, cam 55, and the various other necessary parts,
of the movable bracket or holder 42, carrying the heading tool 40, and slide 41,
substantially as set forth and shown.
2. The combination in or with the other necessary various parts of a machine
such as is herein described with the heading tool 40, slide 41, and bracket or holder 42,
of the operating slide 45, lever 46, and cam 48, all substantially as set forth and
shown.
3. The combination in or with the other necessary various parts of a machine
such as is herein described, with the shaft 16, slides 41 and 56, of the lever 52,
spring 54, with or without the operation of the cam 55, substantially as set forth
and shown.
4. The general combination and arrangement of parts constituting these my
beforenamed improvements in machines for heading nails, bolts, screws, pins or
other analogous articles, substantially as described and shown.
Dated this 5th day of February 1895.
CHARLES T. POWELL,
Applicant's Agent.