IMPROVEMENTS IN STOCKS AND DIES
Year: 1884

page_text: DEFCITICATION.
I, JULIUS EDUARD REINECKER, in Chemnitz Kingdom of Saxony, German
Empire, do hereby declare the nature of my said invention for "IMPROVEMENTS IN
STOCKS AND DIES," and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
The characteristic feature of this invention consists in the employment of 3 to 4
adjustable dies placed in radial slots in the stock, the body of which is circular, and
in adjusting thein by means of eccentric ribs, fastened to a revolving disc or turn
plate, attached to the stock. The eccentric works in corresponding cross grooves
cut in the dies.
Further, in the arrangement for turning the disc just mentioned, and also for
fixing the point up to which the disc has to be turned each time when cutting a
screw of certain size or pitch, and in means for guiding the rod or bolt through the
stock.
Figures 1 to 8 represent a stock and dies with the improvements.
Figure 1 is a plan or view from above.
Figure 2 the body of the screw stock a with the revolving disc f removed.
Figure 3, the revolving disc or turn-plate with eccentric ribs g, h, i, which latter
when the screw-stock is mounted lie facing the body of the screw-stock.
Figure 4 section on line I, II, Figure 1.
Figure 5 section through the centre of the disc or turn plate f.
Figure 6 section through the centre of the guiding plate.
Figure 7 is a view of the perforated plate u.
Figure 8 a view of the disc v, which serves to hold fast the spring fixed in 8.
The body of the screw stock is circular, and in it are cut three or four slots
corresponding with the number of the dies b, c, d, and into which the dies fit
exactly.
The face of the body of the stock is recessed as shown at e (Figure 4) and upon
it rests the disc or plate f which is provided on the side facing the body of the
stock with three eccentrically arranged ribs or borders g h i, which work into the
corresponding grooves k, l, m, in the dies b c d.
This combination of the eccentric ribs g h i with the platef is intended for the
purpose of advancing or receding the screw dies b c d to or from the object to be
cut, as necessity requires,

page_text: The movement of the turn plate is brought about by a ring o, which is screwed.
on to the neck of the plate f. "At one side of the ring o is a catch appliance or
latch p, which fits into a slot shown in dotted lines Figure 1 cut in the edge of the
ring w. A hole is drilled in the centre of the catch p. This arrangement proves
most serviceable when a number of gas pipes, screws etcetera; are to be provided
with thread of equal size. By means of a stud q, inserted into the hole in steel
piece p, the latter can be raised out of the slot in which it engages in the ring w,
whereby p and q come into the dotted position in Figure 5. The ring w, which is
screwed on to the body of the screw stock, holds the disc fagainst the face of the
stock and free to turn thereon around the central axis.
In order to prevent a slanting approach of the screw stock to the object to be
cut a cross head or guide such as shown in Figure 4 or Figure 6 is used. The
first consists merely of a box let into the body of the screw stock a, through the
hole in the centre of which passes the rod or bolt to be cut. The one represented
in Figure 6 is an improved form of guide for the purpose.
8
It consists of two guide studs & and t, which are either fixed firm in the body of
the screw stock, or may be placed so as to move up and down. On to the lower
end of the studs a plate u with central hole is screwed. The studs 8 and t have the
detail construction drawn in Figure 6; it may be seen from the latter, that the guide
bolts are hollow and possess a strong spiral spring inside which finds its upper and
lower counter position in u, and in the little plate v, Figure 8, screwed on to the body
of the screw stock. When the springs are dispensed with, the plate u is affixed
rigidly to the outer ends of the studs.
The method of using the screw stock is as follows.
The latch p is released, in the manner already described, by the stud q from the slot
of the in plate f into the position indicated in dotted lines Figure 5, and the ring o
and with it the plate fare turned to the right until the dies are laid hard against
a pattern bolt placed between them and of the size of the diameter of the screw to
be cut; the ring o is then loosened and turned until the latch p engages with the
slot in the ring w, whereupon the adjusting screw of the ring o is screwed tight
again.
The exact position of the screw dies is thus ensured, and any number of screws
of equal size or pitch may then be cut without the position being altered in the
least, and thus perfect uniformity of the screws to be cut is ensured. In cutting
large sized screws after the position of slot and latch has been determined, the latch
can be released and the ring turned, so as to draw back the dies, and in that
position a first cut may be made and the second or final cut after the latch is
inserted in its slot, two slots may be cut in the ring w.
When the screw has been cut, the latch p is simply raised and the turn plate
turned back, whereupon the screw stock can be lifted off at once.
In order to mark with facility the position of the turn plate f, there can be fixed
on the top edge a scale to work in conjunction with an indicator fixed to the ring o.
For stock and dies which are often taken for use away from a workshop, it is of
importance for the packing of them that the handles can be easily removed.
As shown in Figures 1, 2, and 4 the arms may be composed of gas-pipes firmly
stuck on the somewhat conically turned studs of the body of the stock, and they
are loosened merely by means of a lever or pin which is stuck into the hollow part
of the arms and pressed like a lever against the head end of the stud.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1st. The construction and employment of the screw stock described, consisting
of a circular body a, having slots into which the screw dies b cd fit exactly, and of
the movable disc or plate f, having on its lower side a number of eccentrically
arranged ribs g, h, i, corresponding with the number of the dies, and which work
into corresponding grooves k, l, m in the dies.

page_text: 2nd. The combination with a screw stock, such as described, of the movable
adjusting or fixing ring o, the movable disc or plate f, and the latch p fitting into
the slot in the ring w, substantially as and for the purposes described.
3rd. The combination with screw stock of plates or rings (u) having a central
hole through which the object to be cut passes, and which are held by bolts or
studs secured to or carried by screw stock, substantially as and for the purposes
described.