Improvements in or connected with Feed Mechanism for Machines for Turning Studs, Pins, and the like Articles.
Year: 1897

page_text: Date of Application, 17th Aug., 1897
Complete Specification Left, 13th May, 1898-Accepted, 9th July, 1898
Improvements in or connected with Feed Mechanism for Machines
for Turning Studs, Pins, and the like Articles.
I, HENRY WILLIAM TONKS, of Hockley Hill, in the City of Birmingham, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in or connected with feed mechanism
for machines for turning studs, pins and the like articles, and refers more particu-
larly to the class of machine shown and described in Specification No. 13034 under
date May 27th 1897.
In such machines the cut off lengths of wire have first to be cut off from the
coil in a separate machine and by hand carried thence to and placed in the hopper
of the feed mechanism of the turning &c. machine. It is to obviate this handling
operation that I have made this my invention.
In carrying out my improvements I so arrange and combine the straightening
and cutting off device that as the cut off articles are discharged therefrom they
shall be delivered direct into the usual hopper of the turning &c. machine; or
in some instances, a tubular device is connected up to what is generally known
as the tunnel cutter, so that as each successive piece is fed forward to be cut off,
it shall push the previously cut off ones forward until upon their discharge from
such tube, or it may be a terminating groove, they shall intermittently fall
into, or be gripped by, the dies, and thence carried to the position for the turning
&c. operation.
Or in some cases the cut off portions may pass down an incline surface and be
thence fed into the dies as aforesaid.
The straightening and cutting off mechanism may consist of any of the usual
devices now in practice.
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CHARLES T. POWELL,
Applicant's Agent.
Improvements in or connected with Feed Mechanism for Machines
for Turning Studs, Pins, and the like Articles.
I, HENRY WILLIAM TONKS, of Hockley Hill, in the City of Birmingham, Engineer,
do hereby declare the nature of this invention and in what manner the same is
[Price 8d.]

page_text: to be performed, to be particularly described and ascertained in and by the fol-
lowing statement:-
-
This invention relates to improvements in or connected with feed mechanism
for machines for turning studs, pins and the like articles, and refers more particu-
larly to the class of machine shown and described in Specification No. 13034 under
date May 27th 1897.
In such machines the cut off lengths of wire have first to be cut off from the
coil in a separate machine and by hand carried thence to and placed in the hopper
of the feed mechanism of the turning &c. machine. It is to obviate this handling
operation that I have made this my invention.
In carrying out my improvements I so arrange and combine the straightenin
and cutting off device with a tubular device which is connected up to what s
generally known as the tunnel cutter, so that as each successive piece is fel
forward to be cut off, it shall push the previously cut off ones forward, usi
upon their discharge from such tube, they shall intermittently be gripped and
carried to the position for the turning &c operation.
Or in some cases the cut off portions may pass down an incline surface and be
thence fed into the dies as aforesaid.
The straightening and cutting off mechanism may consist of any of the usual
devices now in practice.
In order to more clearly explain this my invention I have appended hereunto
illustrative drawings upon which are figures and numbers of reference in which
similar numbers refer throughout the several views to the same thing or part.
Fig. 1, is a plan view of a machine constructed according to this my invention.
Fig. 2, is a front view in elevation of the said machine.
Fig. 3, is a plan view upon a reduced scale, of the wire coil carrying and
straightening apparatus.
Fig. 4, is an enlarged side view, and Fig. 5, a plan view of the device for carrying
the cut off lengths to the cutters.
Fig. 6, is an enlarged sectional view on line A-B Fig. 1, of the wire shearing
arrangement.
Fig. 6, is a detailed front view of lever &c. shown in Fig. 6.
The headstocks 11, 11", with their spindles 12, 12, shaping tools 13, 13, and
pulleys 14, 14, are all carried and operated similarly as shown in the before recited
Specification No. 13034 of 1897, that is to say, the head-stocks have a sliding
motion imparted to them for the purposes hereinafter explained. This is effected,
as shown, by the cam 15, upon the main shaft 16, which acts upon the end 17,
of the headstock 11, to force it forward. Upon the underside of this headstock
is secured the down-hanging bracket 18, (see Fig. 8) to which is attached the
connecting rod 19, which latter again is coupled to the lever 20, pivoted at 21,
which again operates the end 22, of the headstock 11ª, by which the two head-
stocks thus simultaneously approach or recede from each other. The outward,
or return movement of these headstocks may be effected by springs such as 23-
and 24.
The wire from which the pins or rivets &c. are to be made is carried upon an
ordinary stand such as 25 (Fig. 3) and passes thence through the straightening
rollers 26, upon platform 27, which is attached to the bed 28, of the machine.
Such parts are well known and therefore need no particular explanation. The
wire now passes into the tubular die 29 (see Fig. 6) and the sliding tubular
cutter 30, this latter being firmly secured in the slide 31, by set pin 32. The
sliding motion is imparted by means of the intermedial piece 33, which is per-
mitted to enter for a short distance into a recess at the lower end of the block 34,
which is bolted to the bed 28. This intermedial piece is then operated by the
lever 35 (see Figs. 2, 6 & 7) and cam 36. The piece thus cut off is then pushed
forward by the next feed motion and falls upon the platform 37, and is steadily
held by the lever 38, see Fig. 6. The succeeding cut off piece then pushes it
forward on to the incline 39, where it is held beneath the spring 40 (Figs. 1, 4 & 5).

page_text: This spring together with the supporting piece 41, and slide 42, are arranged
to slide upon the incline block 43, by means of the lever 44, which latter is
operated by the lever 45 (see Fig. 1) acting against the surface 46; the lever 45,
being moved by cam 47. As the rivet blank 48 is carried down the incline 39,
it is adjusted or corrected into position by the piece 49 ready for falling into the
path of the shaping tools 13. At the time that the blank reaches the lower
end of the incline 39, the slide 50 is moved forward by the slide 51, which latter
is operated by cam 52, and spring 53, (see also Figs. 1 & 2). Upon the underside
of the slide 50, is a peg 54, which is made to engage in the slot 55, in the slide 51,.
so that by the motion of the latter the slide 50, is moved in or out. Hence the
blank falls upon the forward end of the slide 50, and between the two guiding
horns 56, 56. At this time the gripping slide 57, is moved forward so that the
blank is firmly gripped between it and the front end of the incline 39, when
the slide 50 is withdrawn. The shaping tools 13, 13, are now simultaneously
brought forward and the ends reduced as seen in 48. The tools are again receded,
the gripping slide 57, withdrawn, and the finished piece 48 allowed to fall through
the hole 58, in the bed. To ensure such falling away of the piece when finished,
I provide the lever 59 carrying the knocker off 60, which is operated by cam 61, the
said lever being brought back by spring 62. The machine is now ready for
repeat operations.
Reverting to the feeding mechanism for supplying the wire to the cutting off
tools, it will be seen that upon the slide 63, is carried the rock shaft 64, whose
one end 65, is made in one with projection 66, in which is carried the adjusting
pin 67. To the said shaft is further connected the lever 68, whose end rides upon
the roller 69, in pivotted arm 70; the said roller being acted upon by cam 71.
By these means the grip upon the wire is effected between the spring pressure
piece 72 and anvil 73, both of which of course travel with the slide 63. The
necessary to and fro motion of this slide is effected as follows; 74, is a slide at
whose one end is fixed the upright post 75, which engages with cam 76. The other
end of this slide 74, is connected to the underside of the slide 63, by means of
a downward pin 77. The return movement is effected by a spring in any suitable
manner and adjustably limited by set pin 78.
Any suitable driving gear may be used such as the pulleys 79, toothed
wheels 80, 81, and by suitable overhead driving pulleys for the pulleys 14, 14.
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. In machines for turning studs, pins, and the like, the combination with
the sliding headstocks 11, 11", carrying shaping tools 13, 13, and the incline 39,
of the cutting off tools 29 and 30, and the feed supply grip slide 63, each with
their several accessory parts, substantially as set forth and shown.
2. The combination with the grip slide 57, and incline 39, of the platform
slide 50, each with their necessary accessory parts, substantially as set forth and
shown.
3. The combination with the incline 39, of the slide 42, and spring presser 40,
substantially as set forth and shown.
CHARLES T. POWELL,
Applicant's Agent, 12, Cherry Street, Birmingham.