Improvements in Wire-stitching Machines.
Year: 1887

page_text: Date of Application, 14th June, 1887.
Specification Accepted, 2nd Aug., 1887.
Improvements in Wire-stitching Machines.
1, HUGO BREHMER, of Plagwitz-Leipzig, in the Kingdon of Saxony, Manufacturer,
do hereby declare the nature of this invention, and in what manner the same is to
be perforined, to be particularly described and ascertained in and by the following
statement:
The object of this invention is an improved wire-stitching machine intended to
remove the inconveniences prevailing with the machines heretofore employed especially
when stitching with very broad clamps having long points. With such clamps it is
very essential, that the back of the clamp, while it is driven.in, receives a solid support
to prevent the back and points from bending.
Referring to the accompanying drawings, Fig. 1 is a front elevation.
Fig. 2 a vertical section along line R R, Fig. 1.
And Figs. 3-14 illustrate various details, of the improved stitching machine.
In the clamp-channel of the machine is arranged a movable angular or wedge-
shaped support A, provided in front with an inclined surface a, on which the clamp is
continuously supported while driven in. The clamp however does not slide on the
support A, but the latter is so moved backward, by means of the lever b, that the
support afforded to the clamp is equalised during the depression of the clamp-driver
or pusher. The downward movement of the pusher is in exact proportion to the
rearward movement of the support, both parts being uniformly moved by a cam disc B.
To give the support a guiding in the front plate and at the same time prevent the
clamp supported by the said support A from escaping through the front plate d, the
support A is forked or slitted as shown by Fig. 14, and the front plate provided with
bars corresponding to said slits or with guiding openings as in Fig. 9.
The feet or
points of the clamps being rather long, the mechanically introduced wire is cut off by a
special cutter or knife g secured to the slide D. To allow the proper length of wire
to be cut off and prevent the wire from springing off while cutting, an abutment E is
arranged, which is pressed against the end of the wire by means of a spring ƒ Fig. 1,
or by a weight, Figs. 3 and 5.
The clamp-bending device is formed of rails of T shaped cross section.
The mechanisms for moving the single parts may vary in their arrangement at
pleasure.

page_text: Having now particularly described and ascertained the nature of this invention and
in what manner the same is to be performed, I declare that what I claim is :
In wire stitching or clamping machines.
1) A block or support A, provided with an inclined surface a for the purpose of
supporting the clamp during its insertion.
2) The combination of the support A having forked inclined surfaces a, with Я
perforated front plate d substantially as and for the purpose set forth.
3) For cutting off the wire, the combination of the cutter g and the abutment E
actuated by means of a spring weight or equivalent substantially as set forth.
Dated this 14th day of June 1887.
HUGO BREHMER.
By Herbert & Co.,
67, Strand, W.C.,
Agents to Applicant.