IMPROVED MACHINERY FOR CRIMPING LEATHER FOR BOOT FRONTS
Year: 1866

page_text: LETTERS PATENT to Alfred Vincent Newton, of the Office for l'atents, 66,
Chancery Lane, in the County of Middlesex, Mechanical Draughtsman,
for the Invention of "IMPROVED MACHINERY FOR CRIMPING LEATHER FOR
BOOT FRONTS." A communication from abroad by John P. Jamison, of the
City of New York, United States of America.
Sealed the 18th September 1866, and dated the 11th July 1866.
PROVISIONAL SPECIFICATION left by the said Alfred Vincent Newton
at the Office of the Commissioners of Patents, with his Petition, on the
11th July 1866.
I, ALFRED VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane,
in the County of Middlesex, Mechanical Draughtsman, do hereby declare the
nature of the said Invention for "IMPROVED MACHINERY FOR CRIMPING LEATHER
FOR BOOT FRONTS," to be as follows -
This Invention relates to a novel arrangement of machinery for effecting
the crimping of leather for boot fronts. The crimping form or former over
which the leather is to be stretched is a vertical metal plate secured to the
table of the machine, and central with respect to a vertical frame which carries
the working mechanism. Fitted to this frame is a cross head which slides in
vertical guides on the frame. Pendent from the sliding cross head and

page_text: securely attached thereto are two pairs of springs, each of which springs
carries a wing-shaped presser for straining the leather over the former. At
the back of the pressers are fitted india-rubber blocks which are carried by
rigid arms pendent from the sliding cross head; by means of these blocks a
tendency is given to the pairs of pressers to remain in contact with each other.
The former is wedge-shaped, and when the machine is set in action the
pressers are carried down over the former, and being thereby opened they will
move over the leather and stretch it over the former. In order to stretch
the leather end wise as well as crosswise the pressers are fitted at back with
bowles which as the pressers are moved down come into contact with angular
guides; these guides acting upon the bowles cause the pairs of pressers to
open or move laterally, and thus draw out all the wrinkles from the leather
that the downward movement of the pressers may have formed. For giving
motion to the sliding cross head it is fitted with a vertical rack, into which
gears a pinion keyed to a horizontal shaft mounted at the upper end of the
vertical frame. A spur wheel on the end of this shaft receives motion through
spur gearing driven from a winch handle or equivalent
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alfied Vincent Newton in the Great Seal Patent Office on the
11th January 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALFRED
VINCENT NEWTON, of the Office for Patents, 66, Chancery Lane, in the County
of Middlesex, Mechanical Draughtsman, send greeting.
WHEREAS Iler most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of July, in the year of our Lord
One thousand eight hundred and sixty-six, in the thirtieth year of Her
reign, did, for Herself, Her heus and successors, give and grant unto me,
the said Alfred Vincent Newton, Her special licence that I, the said
Alfred Vincent Newton, my executors, administrators, and assigns, or such
others as I, the said Alfred Vincent Newton, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to time
and at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom of
Great Britain and Ireland, the Channel Islands, and Isle of Man, au Invention
for "IMPROVED MACHINERY FOR CRIMPING LEATHER FOR BOOT FRONTS," being
a communication from John Parremoore Jamison, of the City of New York,

page_text: United States of America, upon the condition (amongst others) that I,
the said Alfred Vincent Newton, my executors or administrators, by an
instrument in writing under my, or their, or one of their hands and
seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Alfred Vincent Newton, do hereby
declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawing hereunto annexed,
and to the letters and figures marked thereon (that is to say) :-
-
This Invention relates to a novel arrangement of machinery for effecting
the crimping of leather for boot fronts, whereby all tendency of the leather to
wrinkle while being brought to shape will be removed.
In the accompanying Drawing Fig. 1 shews the improved crimping
machine in front elevation, and Fig. 2 is a partial transverse vertical section
of the same.
The crimping form or former over which the leather is to be stretched
consists of a vertical metal plate A secured to the table A* of the machine,
and central with respect to a vertical frame B which carries the working
nicchanism. This frame consists of two side standards connected together
at top by a cross head. The standards are fitted with vertical guides to
receive the slotted ends of a sliding cross head C; pendent from which and
securely attached thereto by bolts and nuts, but free to turn as on a fulcrum,
are two pairs of springs D, D*; each of these springs carries a wing-shaped
presser E, E, having a rounded lower edge for straining the leather over the
former A, and by reason of the pressers being thus supported they are each
independent of the other, and are thus virtually self-adjusting to suit various
thicknesses of leather. At the back of each presser is fitted an india-rubber
block F; these blocks are held in position by rigid arms G, which are bolted
to and depend from the sliding cross head C, and by means of these blocks a
tendency is given to the pairs of pressers to remain in contact with each other.
The upper edge of the former A 15 curved as usual to suit the curve or bend
to be given to the leather by the crimping operation, and this curved edge is
also wedge-shaped, as shewn at Fig. 1. When the machine is set in action
the pressers are carried down over the former, and being thereby opened they
will move over the leather and stretch it over the edge of the former. It is
necessary, however, to stretch the leather endwise as well as crosswise, and

page_text: to attain this end the pressers are fitted at back with bowles I, II*, which
as the pressers are moved down with the cross head C by the means to be
presently explained will come into contact with angular guides I, I, bolted to
the former A; these guides acting upon the bowles during the downward
motion of the pressers will cause the pairs of pressers to move laterally or
recede from each other, and thus to draw out all the wrinkles from the leather
that the downward movement of the pressers may have formed. For giving
motion to the sliding cross head C it is fitted with a vertical rack C*, into
which gears & pinion J keyed to a horizontal shaft K, which shaft has its
bearings in lugs cast on the fixed cross head of the vertical frame B. The
end of the shaft K carries a spur wheel L, which gears into an interinediato
pinion M mounted on a stud axle carried by a bracket bearing on the
framing B, and this pinion gears into and is itself driven by a pinion N keyed
to a short axle which is supported in the bracket bearing, and itself carries a
winch handle for setting the gearing in motion. Suppose now that the
leather, having been properly prepared for the crimping operation, is laid over
the edge of the former, it will only be necessary to Ling down the pressers
by turning the winch bandle and the leather will by one stroke of the machine
be brought to the form shown at O, Fig. 2, the pairs of pressers E, E, after
having strained the leather over the edge of the former-moving apart,
and thereby stretching the leather lengthwise and removing all wrinkles
therofrom.
Having now set forth the nature of the Invention of "Improved Machinery
for Crimping Leather for Boot Fronts," as communicated to me from abroad,
and explained the manner of carrying the same into effect, I wish it to be
understood that under the above in part recited Letters Patent I claim the
moans above described for supporting and operating the self-adjusting pressers
for the purposes above set forth.
In witness whereof, I, the said Alfred Vincent Newton, have hereunto
set my hand and seal, the Eleventh day of January, in the year of our
Lord One thousand eight hundred and sixty-seven.
Witness,
J. W. MOFFATT,
66, Chancery Lane.
A. V. NEWTON. (L.B.)