Improvements in or relating to Boot and Shoe Edge Setting Machines.
Year: 1891

page_text: Date of Application, 23rd Oct., 1891
Complete Specification Left, 7th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
[Communicated from abroad by ALFRED BURKE FOWLER, General Manager
and Engineer to The Rockingham Machine Company, of Exeter, County of
Rockingham, State of New Hampshire.]
Improvements in or relating to Boot and Shoe Edge Setting
Machines.
I, DANIEL MCNIVEN of No. 15 Newarke Street Leicester, in the County of
Leicester, England, General Manager in Great Britain for The Campbell Machine
Company of Exeter, County of Rockingham, State of New Hampshire United
States of America, Boot Machinery Manufacturers, do hereby declare the nature
of this invention to be as follows:-
This invention has reference to improvements in boot and shoe edge setting
machines used to polish and set the sole edges and also the shanks of boots or
shoes by the employment of sets of tool holders arranged on a vibrating arm or
arms, vibrated laterally by aid of crank pins eccentrically fixed in the end or ends
of a top revolving shaft driven at a great speed by the ordinary mechanical
contrivances used for the purpose in such machines.
The object of this invention is to effect the better arrangement of the edge and
shank burnishing tools in their holders whereby the shank buruisher can be put out
of action when not required for use by being raised instead of being turned or
twisted round as is now the case in twin, or may be single edge setters now in use
such operation of turning or twisting the edge or shank tool offering great jarring
upon the muscles of the arms of the operator who has to hold the boot or shoe
under the tools during the rubbing or burnishing of such parts before described.
I also provide means whereby such tools are fitted in their holders in such a
manner that they are locked firmly in position and are not liable to become loose
or strained as is now the case where the hollow shanks of the tools are fitted and
held on their spindles by bayonet slots, or the like. To carry my invention into
effect, at the end or ends of a top revolving shaft having the driving pulley,
preferably in the centre thereof, a crank pin is set eccentrically, this pin fitting in
a split block arranged to slide vertically in the upper end of the centrally pivoted
vibrating arm usual in such machines. The lower portion of such vibrating arm
or arms I make of a suitable shape and size to admit or receive the edge and
shank tool holders in the following or equivalent manner. Oblong slots are made
in each side of the bottom portion of the arm or arms to admit a pin and nut,
carrying the shank tool holder adapted to be raised and locked in this position
when not required for use, by the operator pressing a thumb piece or lever at the
side connected to a spring pressed locking pin in rear of the pivoted tool holder, to
draw it clear of the tool to raise or lower it as desired; such locking pin holding
the tool holder secure in either the working or resting position. Upon the said
pivot is also placed a split block the lower end of which is adapted to receive the
shank (grooved at its upper end) of the edge setting tool, a spring pin entering
the said groove to secure it in position, such spring being released for removal of
the said tool by any ordinary means, pressure is put upon the said vertically
yielding edge tool holder and lifting shank tool holder when in the working
position by a leaf spring forked at its outer extremity pressing thereon, such leaf
spring being secured under the boss of the vibrating arm or arms. By this
means the rattling or jarring is reduced to a minimum during the lateral
vibration of the arm or arms and the rubbing of the tool upon the edge or shank
of a boot or shoe in non-automatic machines of the character herein before
referred to.

page_text: The heating of the edge or shank tools is effected by the gas tube being fitted
so that the jet passes upon the side or sides of the edge setting tool, and passes
to the shank burnishing tool when down for use immediately in front of the
other.
Or I may provide that both the edge setting and shank burnishing tool holders
may be fitted side by side, and both adapted to be lifted up when not required,
and held locked by the, means and spring pressed in the manner hereinbefore
described..
Dated this 15th day of October 1891.
WILLIAM BESTWICK MAXFIELD,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Boot and Shoe Edge Setting
Machines.
I, DANIEL MCNIVEN of No. 15 Newarke Street, Leicester, in the County of
Leicester, England, General Manager in Great Britain for The Campbell Machine
Company of Pawtucket, Rhode Island, Agents for The Rockingham Machine
Company of Exeter, County of Rockingham, State of New Hampshire, United
States of America, Boot Machinery Manufacturers, 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 has reference to improvements in boot and shoe edge setting
machines used to polish and set the sole edges, and also the shanks of boots and
shoes by the employment of sets of tool holders arranged in a vibrating arm or
arms, vibrated laterally by aid of crank pins eccentrically arranged to project from
the end or ends of a top revolving shaft driven at a great speed by any ordinary
mechanical contrivances used for the purpose in such machines.
The object of this invention is to take off the jarring upon the muscles of the
arms of the operator who has to hold the boot or shoe under the heel during
the rubbing or burnishing of such parts as before described.
In machines now in use a connecting rod is put between the eccentric and
rocking lever which carries the tool holder, and causes much rattling and jarring.
By this invention of providing a sliding box eccentric on the vibrating arms such
jarring and rattling is reduced to a minimum. But it is found that after practically
working the special tool mentioned in the Provisional Specification that no claim
can attend it consequently an ordinary duplex tool is shown in combination with the
vibrating arm and tool holder and sliding box eccentric forming the subject of this
invention.
That this may be well understood reference is made to the sheet of drawings
annexed in which
Figure 1 is a side elevation of the vibrating arm, tool holder and sliding box
eccentric, and Figure 2 a front elevation of same.
In the head of the column or standard a, of the machine is a revolving shaft A,
driven by any ordinary and well known means, and carrying the crank pin b.
To carry out my invention I place upon this pin b, the split block, or sliding box
eccentric B, in the case or box C cast in one with the vibrating arm D and tool
holder E, the said arm D is carried upon the spindle d¹, placed in a recess or hole
in the head of the machine under the eccentric shaft A. The split block or sliding
box eccentric is held to the pin b, by the block F, which fits in the box C,
internally threaded to receive the screw G, when the block is set, the milled
headed screw H is made secure by tightening the screw G. The duplex tool I
is arranged in the bracket E, of the vibrating arm D, the shank i, being carried
in a sleeve and carries the spring, held thereon by the collar i3 of the handle it,
which when turned and depressed, the tools can be changed at will, and when

page_text: again released and the tool holder is level with its socket, it enters same and the
tools are firm in position for the operation. The shank or edge setting tool (not
shown) is made with a projection on its stem, which enter the slots and is held
secure therein by springs .
By the herein described combination or arrangement, boots or shoes can be held
by the operator, or operators to the tools without the rattling or jarring experienced
in edge setting machines as now constructed during the lateral vibration of
the arm or arms in rubbing or setting the edge or shank of the boot or shoe.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
In a boot or shoe edge setting machine the combination with a vibrating arm,
and tool holder of a sliding box eccentric arranged and operated in the manner
substantially as described.
WILLIAM BESTWICK MAXFIELD,
The Central Office for Patents, &c.,
19, Bowling Green Street, Leicester, England, Applicant's Agent.