Improvements in or relating to Seam Rubbing or Levelling Machines.
Year: 1897

page_text: Date of Application, 4th Dec., 1897
Complete Specification Left, 5th Sept., 1898-Accepted, 22nd Oct., 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to Seam Rubbing or Levelling
Machines.
I, JOB LEE, of Gladstone Street and Russell Street, Kettering, in the County
of Northampton, Boot and Shoe Engineer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to seam rubbing or levelling machines for use in the
manufacture of boots and shoes and for other purposes.
A machine constructed according to this invention comprises a suitable framing
carrying a shaft on one end of which may be a hand wheel and a driving pulley.
On the opposite end of the shaft there may be a roller receiving the requisite
motion from an eccentric on the shaft and revolving within the said roller.
Below the roller is a yieldingly constructed table, which according to one form
of construction, may be provided with a leg or shank located within the framing
and recessed or made tubular for part of its length to receive a spring the tension
of which may be regulated by an adjusting screw.
By turning the said screw the position of the yielding table is varied relatively
to the acting surface of the roller and the pressure on the work when placed on
the table and under the roller is also correspondingly varied.
The seam of the boot or shoe upper to be rubbed or levelled in the well under-
stood manner is placed between the roller and the table and the action of the
roller effects the desired result.
By means of the herein before mentioned construction the roller descends upon
the work with a beating or hammering action which is effective in levelling the
seams and it has also an oscillating movement by which it is enabled also to
feed forward the work independently of the operator and with a sufficient pressure
to flatten or level the seam of the uppers.
Dated this 3rd day of December 1897
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Seam Rubbing or Levelling
Machines.
I, JOB LEE, of Gladstone Street and Russell Street, Kettering, in the County
of Northampton, do hereby declare the nature of this invention and in what
[Price 8d.]

page_text: manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
This invention relates to seam rubbing or levelling machines for use in the
manufacture of boots and shoes and for other purposes and will be understood
from the following description in reference to the accompanying drawing showing
a side elevation of a machine constructed in accordance with this invention.
A represents the framing of the machine which carries in its upper tubular
end A a shaft B having mounted on one end a hand wheel C and fast and loose
driving pulleys C¹ 02.
On the opposite end of the said shaft is an eccentric D passing into a roller E
which receives therefrom the required motion for flattening and levelling the
seams of boot and shoe uppers and other leathers.
The roller is maintained fitting loosely on the eccentric by a cap F fixed by
screws passing into the eccentric.
Below the said roller is a yielding table G the stem G of which passes through
a tubular socket A2 forming part of the framing, the said stem being screw
threaded at its lower end and has thereon a leather washer H and a nut H' which
abut against the end of the said socket A³.
By turning the said nut the table can be adjusted relatively to the roller for
different thicknesses of work.
A set screw H³ is employed to prevent accidental movement of the nut H'.
The stem has also thereon a thumb nut J or equivalent the underside of which
may be serrated to frictionally engage the similarly roughened upper surface of
a block K whose underside is recessed to receive the end of a strong spiral spring L
located for some portion of its length in a socket formed in the projecting
portion A3 of the framing.
It is obvious that instead of making the recess for the spring in the bottom
of the block Kit may be made in the underside of the nut J, it is however pre-
ferable to employ the block as the latter acts as a brake upon the nut Jand
prevents it altering its position when adjusted.
The tension of the spring may be regulated by turning the nut J thereby
increasing or decreasing the pressure exerted on the work by the roller.
The action of the machine is as follows:-
The table or work support G having by means of the nut H¹ been adjusted
relatively to the operating roller E when at its lowest position and the strength
of the spring L having been adjusted by turning the nut J according to the thick-
ness of the leather to be operated upon, the work is placed on the table with the
seams under the roller.
The roller by means of the eccentric receives a rising and a falling motion by
which the flattening or levelling of the seams is effected and also a slight forward
movement when it is on the work which feeds the latter along, and it is found
that a roller actuated by an eccentric in the manner described, flattens and levels
the seams in a far more efficient manner than is possible with vertical action
beaters, besides which the leather is not so liable to be bruised or injured.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what
I claim is:-
1. In a machine for the purpose specified a seam levelling roller operating sub-
stantially in the manner and for the purpose described.
2. In a machine for the purpose specified the combination of a roller and an
eccentric for actuating it in the manner and for the purpose described.
3. In a machine for the purpose specified the combination with the seam
levelling device of a spring controlled work support or table and means for
adjusting it substantially as described and illustrated in the accompanying
drawings

page_text: 4. The improved machine for the purpose specified substantially
and illustrated in the accompanying drawing.
as described