Improvements in Adjustable Lasts.
Year: 1892

page_text: Date of Application, 17th Nov., 1892-Accepted, 7th Jan., 1893
'
CUMI LEID DI DITIVATION.
Improvements in Adjustable Lasts.
We, HERMAN KURTH and AUGUST SCHULZE of 2 Louisenstrasse, Dresden,
Germany, Merchants, 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 :-
This invention relates to adjustable lasts and it has for its object to improve
their construction.
And in order that our said invention may be properly understood, we have
hereunto appended an explanatory sheet of drawings whereon:-
Fig. 1 is a vertical section of the last, on the line -, Fig. 2.
Fig. 2 is a vertical section of the last, on the line.. Fig. 1.
Fig. 3 is a horizontal section on the line x-x¹ Fig. 1.
Fig. 4 is a horizontal section on the line - Fig. 1.
Referring to the drawings whereon the same reference letters wherever repeated
indicate the same parts..
The last consists of a base or foundation plate 7 which is preferably provided
with three feet in order that it may stand firm and steady. In the foundation are
three holes, 1, 7 into any one of which the base o of the. upright or stand i can
be inserted. The holes r, r, are preferably inclined at an angle of 90° to one
another whilst the central hole is vertical. The base o has a dove-tail groove in
it (see Fig. 2) in which slides the lower ends, which are bevelled so as to fit in
the dove-tail groove, of the two hollow parts or portions of the stand. The
base o is made with an upward projection which has in it a bearing through which
passes a spindle 6 having a hand wheel a at its end. The spindle which is cut with
left and right hand screw-threads, as shown, passes through tapped holes in the
parts i. On the centre of the spindle is a chain wheel c. A second spindle f, which
is also cut with right and left hand screw-threads, passes through holes in the
upper ends of the parts i. This spindle has also a chain wheel c on it. A chain d
passes over both wheels c so that by turning the hand wheel a both spindles f, b
are put in motion, and, since they are cut with right and left hand screw-threads
the parts i are moved asunder or drawn together according to the direction of
revolution of the hand wheel.
The hollow last m is made in two pieces g, g¹ and each of these pieces has a
dove-tail web h. Two tightening pieces fit into the interior of the last and on to
the dove-tail webs ; connected to or made one with the tightening pieces are
bolts which have guide flanges (see Fig. 4) at their upper ends and pass down
between the parts of the stand. The bolts k at their lower ends, which are
screwed, pass through holes in inwardly projecting lugs s, on the parts i, and are
held adjustably in place by nuts n.
A small bracket u (Fig. 2) is or may be cast on the base o and into this bracket
a spindle v may be inserted. Fitted on the upper end of the spindle is a tension
plate w. The bracket is made with a slot w¹ to enable the spindle and plate to be
easily taken out and replaced by a spindle with a larger or smaller tension plate in
order to suit a different size of boot.
The base or foundation piate q is made with a projections (Figs. 1 and 3) on
which a horn can be fixed.
If it is desired to broaden out the last, all that is necessary is to turn the wheel a
when the action of the spindles b, f, forces apart the parts i and the tightening
pieces, which, in their turn, force outwards the parts g, g', of the last m. By
turning the screw in the reverse direction the parts g, y', can be brought together
again.

page_text: If it is desired to take off the last m and substitute a larger or smaller one, all"
that is necessary is to slacken the nuts n, when the pieces release their grip
and the parts g can be taken off and new ones substituted.
As the projection p on the base o is merely inserted into one of the holes r, in
the base plate q, the last can be turned round in any direction on the part p which
serves as a pivot.
When the pivot p of the base is inserted in one of the holes r,, the last is held
in an inclined position so as to be handy for the finisher.
The length of the last may be increased by dividing it transversely and inserting
pieces or wedges between the heel and toe parts.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
1. The general arrangement and combination of parts of the improved adjust-
able last, substantially as hereinbefore described with reference to the drawings
annexed.
2. The mechanism for moving the parts i consisting of the screwed spindle b,
chain wheel c, chain d, and screwed spindle f, substantially as hereinbefore described
and shown on the drawings annexed.
3. The combination with the interchangable parts g, g', of the last, of tightening
pieces and bolts k for securing it to the parts of the stand i, substantially as
hereinbefore described and shown on the drawings annexed.
Dated this 16th day of November 1909
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.