Improvements in Machines for Perforating Pearl Buttons and other similar Articles.
Year: 1890

page_text: Date of Application, 10th Nov., 1890
Complete Specification Left, 1st July, 1891-Accented 1ot Auve
004
PROVISIONAL SPECIFICATION.
Improvements in Machines for Perforating Pearl Buttons and other
similar Articles.
I, JULES CLERET of Beauvais, Oise, France, Manufacturer, do hereby declare
the nature of this invention to be as follows:-
My invention has reference to machines for perforating pearl buttons and other
similar articles.
The improved machine is arranged to perforate buttons or other articles with
two or more holes by means of a corresponding number of drills or piercers fixed in
carriers which are mounted on the frame of the machine. A carriage worked by
hand moves the buttons to the drills and again from the drills after they have been
pierced, and allows them to fall into a box or receptacle below.
The drill carriers are each formed of a conical tube the front end of which is
shouldered so as to turn in a suitable bearing, the other end turns in a socket fixed
to the back of the frame of the machine. In this tube is a rod forined in three
sections, all the three having a central passage for the drill. The rear section
extends beyond the socket above described and is fitted with a milled button. At its
other end this section is threaded so as to engage with a corresponding thread in the
conical tube. The innermost section is slit for the greater part of its length so as
to grip the drill when the outer section is screwed up tight. For this purpose the
conical tube has a conical contraction in which the front end of the innermost
section engages. Each drill carrier is fitted with a pulley and all the pulleys are
driven by the same belt so as to obtain a uniform rotation.
To the frame is fixed in any suitable manner a small bed on which slides a
carriage worked by hand by means of a horizontal lever or otherwise. The head
of this carriage has an opening to receive a gauge into which the button to be
perforated is inserted; this gauge varies according to the diameter of the button.
The button falls upon a platform formed of two parallel bars connected by a rod
liding vertically in the small bed. According to the diameter of the button this
latform is raised or lowered by means of a nut so as to present the button in
roper position to the drills.
as been perforated the button falls through an opening into a box placed for the
When the carriage is moved back after the button
urpose under the machine. The forward travel of the carriage is regulated by an
ljusting screw.
Dated this 10th day of November 1890
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Machines for Perforating Pearl Buttons and other
similar Articles.
I, JULES CLÉRET, of Beauvais, Oise, France, Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
The present invention has reference to mechanism for piercing or perforating
pearl buttons or other articles similar in form, the invention being particularly
applicable for the manufacture of buttons having two or four holes. The drills are
[Price 8d1

page_text: preferably arranged in pairs with their points so disposed as to pierce two holes
simultaneously at points diametrically opposite to each other, which arrangement is
found to be very efficient and advantageous. The button or other article is
presented to the action of the drills by means of a chariot sliding longitudinally
in the frame. It carries a button-holder which is removably supported thereon,
this piece being made according to the dimensions of the button-blank. A platform
carried by the frame supports the button during the drilling operation, this
platform being vertically adjustable and placed adjacent to a discharge-opening in
the frame, through which the button drops into a suitable receptacle when the
chariot is withdrawn.
In the accompanying drawings,
Figure 1 is a vertical longitudinal section, partly in elevation, and
Figure 2 a plan view, of a machine or apparatus constructed in accordance with
the invention.
The tool-holders are composed of a tapering sleeve a, whose forward ends are
shouldered to rotate in a journal box 6, the other ends being supported in cylindrical
journals.
Within each sleeve a is a hollow spindle composed of three parts f, g, and h
surrounding the drill-rod i. Part projects from the journal c and carries a milled-
edge button j. Its inner end is threaded to engage with the internal threads of
sleeve a.
The other parts g and h of the spindle are held in sleeve a by slight
friction. The bore of sleeve a is conically contracted at its forward end k, and
part of the spindle is split for the greater part of its length. Consequently when
part is screwed home the hold of part upon the spindle is tightened by the
pressure of the contracted part of k of the sleeve against which the end of part h
abuts. This arrangement permits the ready removal and insertion of the drills.
Each tool-holder has its pulley 1, and a belt or cord passing over them all drives
the tool holders at a uniform speed.
To the frame d is fixed a table m, upon which slides the chariot n, which in the
machine shown is adapted to be actuated by a hand-lever o. The chariot carries
in a recess in the face opposite the drills a button-blank holder p, adapted to the
diameter and thickness of the button and removable for insertion of a different
holder when required.
In action the button rests upon a platform 7, composed of two parallel bars
united by a cross-piece r, the ends of these bars entering a space under the sliding
chariot n. It is adjustable vertically by means of a nut and screw arrangements, as
shown in the drawings, so as to present the central portion to the action of the
drills. The platform is adjacent to an opening t in the frame through which the
button drops, when the chariot n is withdrawn, into a suitable receptacle.
An adjustable screw u limits the motion of the chariot toward the drill, arresting
it at the proper point, according to the thickness of the button.
The invention while it specially includes the arrangement of drills to operate in
pairs at diametrically-opposite points on the button, is not limited to a single pair,
as shown, but would include the use of two pairs operating alternately, and
preferably from opposite sides.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination, with the button-holding device, of the drill-holder comprising
a journaled sleeve provided with a pulley for turning and being internally con-
tracted at its forward end, a hollow spindle in several parts, the forward part being
split and abutting against the contracted portion of the sleeve, so that when forced
forward it will clamp the drill, and the rear part projecting beyond the sleeve and
being provided with a button for turning and with threads engaging threads on said
rotatory sleeve, whereby the spindle, drill, and sleeve are coupled' together for
action, substantially as described.

page_text: 2. The combination, with the drills, of the frame having a discharge-opening,
the chariot adapted to slide on said frame, the button holder carried by said chariot
across said opening, and the vertically-adjustable platform beneath said holder,
substantially as described.
Dahl of Tul. 1001
J. C. MEWBURN,
55 & 56, Chancery Lane, London, Patent Agent.