Machinery or Apparatus for the same.
Year: 1887

page_text: Date of Application, 30th Dec., 1887
Complete Left, 3rd May, 1888
Complete Accepted, 8th June, 1888
and in Machinery or Apparatus for the same.
I, ANDREAS GRUHL, of 61 Johannisstrasse, Löbau, Saxony, in the Empire of
Germany, Joiner, do hereby declare the nature of my said invention to be as follows:-
The object of my invention is to effect improvements in the manufacture of
finished metallic buttons, and in the punching and stamping machinery for effecting
the same.
In carrying out my invention, I construct a strong cast iron frame, at or near one
end of which I fit the driving shaft, which is fitted with the usual description of cams,
tooth and other wheels and eccentrics for driving the punches and stamps, which are
arranged for horizontal motion.
At or near the middle of the frame I fit an iron plate, in vertical guides; and which
plate receives vertical reciprocating motions by means of cams, cranks, eccentrics, or
equivalent mechanical devices. This plate is perforated with a number of holes, in
which suitable dies are fitted, in such a manner that the punches and perforating
appliances may act simultaneously on each side, with equal pressure or thereabouts.
The feeding of the metal is effected by 8 rollers, four on each side of the plate,
whereby two separate ribbons of metal are fed at the same time, and stamped, grooved,
and separated from the passing metal ribbons.
The stamps then return to their original position, and carry away with them the
stamped metallic pieces or discs. The plate is now raised until the perforating
appliances are opposite the stamped metal, in which position the drilling and perforating
is effected.
The stamped metal on both sides of the plate then returns with the plate to the
former position where the rivetting of the button is effected. A pin mechanism is
then applied to the finished button, to remove it, and make way for the repetition of
the process.
GEO. DOWNING,
Agent for Applicant.

page_text: and in Machinery or Apparatus for the same.
I, ANDREAS GRUHL, late of 61 but now of 62 Johannisstrasse, Lobau, Saxony, in
the Empire of Germany Joiner, do hereby declare the nature of my said invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
--
The object of my invention is to effect improvements in the manufacture of finished
metallic buttons, and in the punching and stamping machinery for effecting the
same.
In carrying out my invention, I construct a strong cast iron frame, at or near one
end of which I fit the driving shaft, which is fitted with the usual description of cams,
tooth and other wheels and eccentrics for driving the punches and stamps which are
arranged for horizontal motion.
At or near the middle of the frame I fit an iron plate, in vertical guides; and which
plate receives, vertical reciprocating motions by means of cams, cranks, eccentrics, or
equivalent mechanical devices. This plate perforated with a number of holes in
which suitable dies are fitted, in such a manner that the punches and perforating
appliances may act simultaneously on each side of the plate, with equal pressure or
thereabouts.
The feeding of the metal is effected by eight rollers, four on each side of the plate,
whereby two separate sheets of metal are fed at the same time, and the discs forming
the buttons are stamped, grooved, separated from the passing metal sheets, and
finished.
And in order that my said invention may be particularly described and ascertained,
reference is hereby made to the accompanying drawings, in which similar letters of
reference indicate corresponding parts.
Fig. 1. is a longitudinal elevation of the machine. Fig. 2. is a plan of the same
Fig. 3 is an elevation of the left hand end of the apparatus, omitting some parts for
the same of clearness. Fig. 4 is an elevation of the right hand end, also with some
parts removed. Fig. 5 is a sectional elevation through the plate mi drawn to a larger
scale. Fig. 6 is a plan, also on an enlarged scale,. in which one set of stamping
apparatus only is shewn for greater clearness. Figs. 14 and 15 are front and back
elevations of the same plate, and Fig. 16 is another form of plate with a double row
of dies. Figs. 7 to 13 are detail views of various parts of the mechanism.
m is the central die plate, fitted with guides g g so as to be capable of rising and
falling. This plate is fitted with a series of dies or matrices m² m². The plate m
has also a series of openings for the passage of the buttons, and punches m³ for
rivetting and finishing the buttons.
1
ww are side frames sustaining the guide bars a¹ a² ². Sets of stamping
apparatuss ss23 are fitted as shewn in the drawings. The central pins pare driven

page_text: by the bar which is actuated by the lever driven by the cam o (Fig. 13). The
sleeves s are fitted to and driven by the bar a¹.
The sleeves s' are fitted to and driven by the bar a. The rods are fitted to and
driven by the bar 62 and the sleeves s are fitted to and driven by the bar b¹.
The sheets of thin metal n n aro fed into the apparatus, on each side of the plate m,
by eight rollers, four on each side.
The plate m being down in its lowest position as shown in Fig. 5, the bars a¹ a²
and are driven towards the matrices m² m², carrying with them the stamping
apparatus ss s² 3. This operation simultaneously cuts out, stamps, and perforates
two metal discs one on each side of the die plate m.
The rods and sleeves forming the stamps are then moved away from the plate m,
carrying their respective discs away with them. The plate m is then raised until the
holes in the plate m are in a line with the stamps. The bars a² and the sleeves s'
then remain stationary, while the bars a¹ and b¹ nove towards each other, as shewn
in Fig. 12, whereby the stamp s meets the stamp s³, and both parts of the button are
pressed together, the united button remaining upon the pins of the stamp s. The
stamps then move back to their original position leaving both parts of the button
upon the stamp s. The plate m is then again raised until the matrices m³ arrive in a
line with the stamps. The stamps s and 3 then advance towards the matrices m³, and
the two parts of the button are securely rivetted together by means of the punch
in the matrix m³, which punch is fitted with a spring, as shown in Fig. 5.
After the return of the stamps and finished button is pushed off the stamps by the
central rod p. The plate m is then lowered to its primary position; the feeding of
the sheet metal then takes place by means of the rollers and pawls.
In the drawings ccare guide pins to guide the bars in their horizontal reciprocating
motions. The rods d and e are the connecting rods for driving the bars a¹ a²b
The plate m is raised and lowered by the lever r actuated by the disc R fitted with a
roller R.
The sleeves are held stationary by means of pawls kk, at intervals while the
stamps s and s operate as above mentioned.
The motion of the stamp s, with the two parts of the button, towards the matrix m³,
effects the rivetting of the button, after the two parts have been previously pressed
together by the spring dies fat m³.
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 :-
The improved method of manufacturing buttons by means of the plate m fitted
with matrices and other appliances, and caused to travel transversely to and in
combination with the concentric stamps punches, bars, springs and pins, severally
operating substantially as herein before described and shewn on the drawings.
Dated 3rd May 1888.
GEO. DOWNING,
Agent for Applicant.