Year: 1887

page_text: Date of Application, 8th June, 1887
Complete Left, 8th Mar., 1888
Complete Accepted, 20th Apr., 1888
similar Articles.
I, ALEXANDER ANDERSON, Manager of The Singer Manufacturing Company's
Works, Kilbowie, Dumbartonshire, do hereby declare the nature of this invention (a
communication to me from abroad by The Singer Manufacturing Company of New
York, in the United States of America, Sewing Machine Manufacturers) to be as
follows:-
My invention relates to a machine for swaging needle blanks and other similar
articles, the machine being of the class in which the dies are carried by a rotary
holder and forced towards each other by a circularly arranged series of rollers against
which the outer ends of the dies, or the contact blocks forming continuations of the
said dies, impinge as the die-holder revolves.
In the machines of the class referred to adjustment of the dies either to compen-
sate for the loss of metal by wear or resurfacing, or for swaging different sizes of
needles has heretofore been effected by inserting steel plates or filling pieces" of
varying thickness between the dies and the contact blocks, but this means of adjust-
ment has been found objectionable and unsatisfactory, and the object of my invention
is to overcome the inconvenience incidental thereto.
This object I accomplish by providing wedges which are interposed between the
dies and the contact blocks and which may be adjusted as may be desired to adjust the
dies.
The rotary die-holder is grooved or recessed for the reception of the dies and the
contact blocks, and between the said blocks and dies are interposed adjusting wedges,
the outer ends of which are formed with right-angular arms-provided with slots or
openings for the free passage of screws, the latter having solid collars impinging
against the inner sides of the said arms. The said screws are also provided with lock
nuts and between the said nuts and the outer faces of the said wedges I prefer to
interpose washers.
The inner ends of the contact blocks are bevelled to correspond to the bevel of the
wedges, and, as it is desirable that the latter should have a bearing against the entire
surfaces of the ends of the said blocks and of the dies, the die-holder is provided

page_text: with recesses into which the ends of said wedges may project as they are adjusted
inward.
The rollers by which the dies are forced inward are arranged in a circle inside of a
stationary. shell or cylinder in which they are retained by an annular bearing
plate.
From the foregoing it will be apparent that adjustment of the dies may con-
veniently be effected by turning the screws in or out, the accidental displacement of
the said wedges being prevented by the lock nuts which are tightened after adjust-
ment of the screws. The slots formed in the arms of the wedges for the passage of
the screws permit the necessary side movement of the said wedges as they are
adjusted in and out.
To provide for accurate adjustment of the wedges and to secure exactly the same
adjustment of both wedges without difficulty I prefer to key the washers to the
screws so that they will turn with the latter, said washers for this purpose being
furnished with index figures and the outer faces of the wedges with gauge marks so
that the extent of the rotation of the said screws will be indicated by the washers.
The wedges are also preferably provided at their outer ends with graduated scales,
and by means of these scales and the index washers adjustments equalling in exactness
those determined by micrometer gauges, may conveniently be effected.
Dated this Seventh day of June 1886.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.

page_text: Improvements in Machines for Swaging Needle Blanks and other
similar Articles.
I, ALEXANDER ANDERSON, Manager of the Singer Manufacturing Company's
Works Kilbowie, Dumbartonshire do hereby declare the nature of this invention
and in what manner the same is to be performed, as communicated to me to be
particularly described and ascertained in and by the following statement :—
My Invention relates to a machine for swaging needle blanks and other similar
articles, the machine being of the class in which the dies are carried by a rotary
holder and forced towards each other by a circularly arranged series of rollers against
which the outer ends of the dies, or the contact blocks forming continuations of the
said dies, impinge as the die-holder revolves.
"
In the machines of the class referred to adjustment of the dies, either to com-
pensate for the loss of metal by wear or resurfacing, or for swaging different sizes of
needles, has heretofore been effected by inserting steel plates or filling-pieces" of
varying thickness between the dies and the contact blocks; but this means of adjust-
ment has been found objectionable and unsatisfactory, and the object of my invention
is to overcome the inconvenience incidental thereto. This object I accomplish by
providing wedges, which are interposed between the dies and the contact blocks, and
which may be adjusted as may be desired to adjust the dies.
In the accompanying drawings Figure 1 is a sectional view of a rotary die holder
and the parts carried thereby embodying my invention. Fig. 2 is an end or face view
of the same. Fig. 3 is a view similar to Fig. 2. showing the die holder and the parts
rotating therewith, and also the rollers for forcing the dies toward each other, and the
stationary cylinder or shell within which the said rollers are housed; and Figs. 4, 5,
6 and 7 are enlarged detail views.
A, denotes the rotary die holder, which is grooved or recessed for the reception of
the dies B and the contact blocks C, and between the said blocks and dies are inter-
posed the adjusting wedges D the outer ends of which are formed with right-
angular arms d, provided with slots or openings d' for the free passage of the screws F,
the latter having solid collars fimpinging against the inner sides of the said arms.
The said screws are also provided with lock nuts G, and, between the said nuts and
the outer faces of the said wedges I prefer to interpose the washers b. The inner
ends of the contact blocks Care beveled to correspond to the bevel of the wedges,
and as it is desirable that the latter should have a bearing against the entire
surfaces of the ends of the said blocks and of the dies, the die holder is provided with
recesses a into which the ends of said wedges may project as they are adjusted
inward. The rollers E by which the dies are forced inward, are arranged in a circle
inside of the stationary shell or cylinder H, in which they are retained by the annular
bearing plate I.
·
From the foregoing it will be apparent that adjustment of the dies may conveniently
be effected by turning the screws F in or out, the accidental displacement of the said

page_text: wedges being prevented by the lock nuts G, which are tightened after adjustment of
the screws. The slots d', formed in the arms d of the wedges for the passage of the
screws F permit the necessary side movement of the said wedges as they are adjusted
in and out.
To provide for accurate adjustment of the wedges, and to secure exactly the same
adjustment of both wedges without difficulty, I prefer to key the washers to the
screws F, so that they will turn with the latter, said washers for this purpose being
furnished with index figures and the outer faces of the wedges with gage marks, (see
Fig. 6) so that the extent of the rotation of the said screws will be indicated by the
washers. The wedges are also preferably provided at their outer ends with graduated
scales c, and by means of these scales and the index washers adjustments equaling in
exactness those determined by micrometer gages may conveniently be effected. This
feature of my invention will be readily understood by reference to Figs. 4, 5, 6 and 7,
the last named figure showing a notch, b', in one of the washers for loosely keying
it to its screw, so that it will turn with the latter although the screw will be free to
move lengthwise through the washer.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declaro that what
I claim is :-
1. The combination, with the die holder and the dies and contact blocks carried
thereby, of the adjustable wedges interposed between the said dies and blocks
substantially as set forth.
2. The combination, with the die holder and the dies and contact blocks carried
thereby, of the wedges interposed between the said dies and blocks; and the screws
for adjusting said wedges, substantially as set forth.
3. The combination, with the die holder and the dies and contact blocks carried
thereby of the wedges D, interposed between said dies and blocks and provided with
slotted arms & the screws F having the collars fand the locknuts G, substantially as
set forth.
4. The combination, with the die holder A having the recesses a, of the dies and
contact blocks carried by said holder and the adjustable wedges interposed between
the entire adjacent surfaces of the said dies and blocks and adapted to extend into said
recesses when adjusted inward substantially as set forth.
5. The combination, with the die holder, the dies, the contact blocks, the wedges,
and the screws F, having collars f of the lock nuts, and the washers interposed between
said nuts and the outer ends of the arms of the said wedges, substantially as set
forth.
6. The combination, with the die holder, the dies, and the contact blocks, of the
wedges interposed between the said blocks and dies, the screws for adjusting said
wedges, the washers keyed to said screws and provided with index figures, and the
lock nuts for securing said screws after adjustment, substantially as set forth.
7. The combination, with the die holder, the dies, and the contact blocks, of the
wedges interposed between the said dies and blocks and provided at their outer
ends with graduated scales, the screws for adjusting said wedges, the index washers,
and the lock-nuts, substantially as set forth.
Dated this Seventh day of March 1888.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.