IMPROVE- MENTS IN APPARATUS FOR EYELETTING BOOTS, SHOES, AND OTHER ARTICLES REQUIRING EYELETS
Year: 1864

page_text: PROVISIONAL SPECIFICATION left by Mark Frederick Heinzmann' at
the Office of the Commissioners of Patents, with his Petition, on the
26th November 1864.-A communication from abroad by Cauchy
Fournier, of Paris, in the Empire of France.
I, MARK FREDERICK HEINZMANN, of Bradford, in the County of York,
Merchant, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN APPARATUS FOR EYELETTING BOOTS, SHOES, AND OTHER ARTICLES REQUIRING
EYELETS," to be as follows:-
My Invention has for its object the eyeletting of boots, shoes, or other
articles requiring eyelets with greater facility and regularity than is attainable
by ordinary methods. For this purpose, within a circular hole drilled through
the lower jaw of a C-shaped standard (secured by means of a foot and screw
to an ordinary bench) I place a hollow spindle to free receive a vertical
motion (by preference) though in some cases it may be desirable to substitute
a horizontal one. The lower end of this spindle is made of larger diameter
than the upper end, and a coiled spring placed upon the smaller part of the
spindle rests upon the "shoulder" formed by the larger part of the same, the
upper end of the spring abutting against the shoulder formed within the top
of the lower jaw in consequence of the smaller diameter of the upper end of
the spindle before named. Within the hollow spindle another spindle or
needle is placed free to receive vertical motion independent of the outer
spindle. The inner spindle or needle, like the outer one, is of larger diameter

page_text: at the lower end and is provided with a spring, as in the former case, resting
on a "shoulder" and abutting against a "shoulder" formed within the top of
the outer spindle. It also projects slightly above the upper end of the outer
spindle. When the spindles or needles are actuated by hand power a bell-
cranked lever (its fulcrum forming a part of the lower jaw of the standard)
may be used, the one end being cam-shaped to suit the required strokes of
the outer and inner spindles, whilst to the other end an ordinary handle is
attached, or excentrics connected with an ordinary crank treadle worked by
the foot may be used. To the upper jaw of the standard I affix a punch of
any desired size, also adjustable "sets" to regulate the pitch of the holes
as well as the distance of the holes from the edge of the material under
operation.
The action of the machine is as follows:-Placing an eyelet with its flanch
downwards upon the projecting end of the inner spindle or needle, and the
material to be operated upon between the same and the punch before named,
the handle of the bell-cranked lever is depressed, thus causing both the outer
and the inner spindle to ascend, carrying with them the eyelet until they come
in contact with the material to be eyeletted, the pressure being continued, the
fixed punch before named (which is placed directly over the inner spindle)
cuts a hole through the leather or other materal, the eyelet is forced through
such hole, firmly clenched by compression between a shoulder on the punch
and the outer spindle, the inner spindle during the operation of punching and
clenching being stationary. The eyelet so fixed is put upon the set for
regulating the pitch, and the operation repeated ad infinitum, the springs
before named causing both the inner and the outer spindles to descend as
soon as the upward pressure of the cams or excentrics ceases.