IMPROVEMENTS IN THE CONSTRUCTION OF CHANGEABLE LASTS
Year: 1881

page_text: LETTERS PATENT to Joseph Fieldhouse, of Keighley, in the County of York,
Gentleman, for an Invention of." IMPROVEMENTS IN THE CONSTRUCTION OF
CHANGEABLE LASTS."
PROVISIONAL SPECIFICATION left by the said Joseph Fieldhouse at the
Office of the Commissioners of Patents on the 23rd July 1881.
JOSEPH FIELDHOUSE, of Keighley, in the County of York, Gentleman.
"IMPROVEMENTS IN THE CONSTRUCTION OF CHANGEABLE LASTS."
My Invention has for its object the construction of changeable lasts used for
repairing boots, shoes, and other foot coverings, in such a mauner that any size
of last can be firmly fitted, and at the same time easily removed from the stem or
upright support, which I accomplish by forming at the top of the stem or upright
support a projection or tenon, so constructed as to retain the strength of the
last, and when inserted into a recess formed in the latter the same will be firmly
secured to the stem and capable of resisting the force of the blows when driving
nails or boot protectors into the soles or heels of foot coverings.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Fieldhouse in the. Great Seal Patent Office on the
21st January 1882.
JOSEPH FIELDHOUSE, of Keighley, in the County of York, Gentleman.
"IMPROVEMENTS IN THE CONSTRUCTION OF CHANGEABLE LASTS."
My Invention has for its object the construction of changeable lasts used for
repairing boots, shoes, and other foot coverings, in such manner that any size of
last can be firmly fitted to and easily removed from the stem or upright support of
what I term the base last, and consists in arranging one of the lasts termed the
base last with a projecting stem, at the top of which is a tenon, so constructed
that when inserted into the mortice formed in any of the changeable lasts the
latter is secure, and will resist the force of the blows when nails or boot protectors
are being driven into the soles or heels of foot coverings.
In the accompanying Drawings, Figure 1 represents the side elevation of the
base last with a changeable last, which is partly in section, placed on the tenon at
the top of the last stem; Figure 2 is a view of the upper portion of the stem, the
tenon overhanging at the top; and Figure 3 is a view shewing a taper tenon.
The stem A is part of the last B which forms the base upon which the same
stands when nails or protectors are being driven into foot coverings. The stem
last B is the largest size, and when used for large foot coverings the tenon is
placed in the mortice of a changeable last, which last then forms the base, the
last B being placed in the foot covering.
At the top of stem A is the before mentioned tenon C, which is taper, being
shorter at the top part C₁ than at the bottom, joining the shoulder A¹ of stem A.
The back part of the tenon at C2 is perpendicular, that is, at right angles with the
base line E, or it may slightly overhang at the top, as shewn by Figure 2, the
dotted line being perpendicular.
On the tenon is placed a changeable last D, the tenon passing into the mortice
therein; the back part of tenon at C2 acting as a key in the mortice prevents
the last depressing at the toe part when nails or protectors are being driven into
foot coverings.
By making the tenon taper, as shewn by Figure 3,.changeable lasts may be fitted
to the stem A, but when so fitted are not-so-firm-as-when-arranged in the manner
as before described.
What I claim as my Invention is,―
The construction of a base last having a projecting stem with a tenon formed
thereon on which may be fitted changeable lasts; the base last by inverting the
same may be used as a last, the changeable last thus becoming the base, all
arranged substantially as described and as illustrated by the accompanying
Drawings.
In witness whereof, I, the said Joseph Fieldhouse, have hereunto set my
hand and seal, this Nineteenth day of January, in the year of our Lord
One thousand eight hundred and eighty two.
Witness,
JOHN WAUGH,
Engineering and Patent Offices,
Bradford.
JOSEPH FIELDHOUSE. (L.S.)