Improvements in Buffing or Sand Paper Rolls and the like.
Year: 1892

page_text: Date of Application, 21st Nov., 1892
Complete Specification Left, 20th Sept., 1893-Accepted, 21st Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Buffing or Sand Paper Rolls and the like.
I, HENRY O'CONNOR BRIDGEWATER of Aylestone Park Leicester in the
County of Leicester Boot and Shoe Manufacturer do hereby declare the nature of
this invention to be as follows:-
This invention relates to improvements in buffing or sand paper rolls, and the
like to provide a simple and effective manner of securing such sand paper, emery
or other strips thereto for sand papering or buffing the soles and heels of boots or
shoes. And for securing covers upon rolls used for polishing black bottoms and
heels of boots or shoes. So that when such coverings become worn they can be
easily taken off and fresh ones supplied and fastened down by a transverse bar
forcing the ends of the strip into a groove across the periphery of the roll.
To carry out this invention I arrange a roll of wood, or metal of the width
required, its periphery being straight or round according to the work to be done.
It is covered by a layer of felt, the length of which will not quite cover the roll,
but a space will be left to form the groove across above referred to sufficient for
the transverse bar to lie between, and hold the two ends of the strip of buffing or
sand-papering material. The roll is drilled in the centre to the size of the shaft
on which it is to be secured, by screws or other suitable means. The said
transverse bar is supported by two vertical levers or rods one on each side of the
roll connected to cranks or eccentrics on a cross shaft passing through the roll, on
one side of the roll is placed a suitable thumb piece or lever so arranged that when
it is pulled outwardly it will cause the vertical levers and bar to be lifted out of the
groove in the roll, when the sand paper or other strip or covering can at once be
removed. Another strip is then placed thereon, the ends on the groove the hand
lever is raised within the circle of the roll when it brings the transverse bar into the
groove, and so secures the ends of the strip on the roll.
For straight rolls the transverse bar may be flat, but for round rolls, it will
by preference be round. In some cases the said bar, levers or rods may be made
of stout wire. For very wide rolls the two outer levers may not be sufficient to
keep the top bar from giving somewhat when liberated from the groove. To
obviate this I may arrange rods at intervals on the bottom shaft passing up holes in
the roll, and attached at top to the bar, this will necessitate holes probably being
made in the felt, but would ensure the evenly raising or falling of the fastening
device. Or guides or pins may be placed at the side of the vertical levers, in the
sides of the rolls to ensure an even movement thereof.
Dated this 17th day of November 1892
W. B. MAXFIELD,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Buffing or Sand Paper Rolls and the like.
I, HENRY O'CONNOR BRIDGEWATER of Aylestone Park Leicester in the
County of Leicester Boot and Shoe Manufacturer, 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 improvements in buffing or sand paper rolls, and the like
to provide a simple and effective means or manner of securing sand paper, emery
or other strips thereto for sand papering or buffing the soles and heels of boots and
shoes. And for securing covers upon rolls used for polishing black bottoms and
heels of boots and shoes. So that when such coverings become worn they can be
easily taken off and fresh ones supplied and fastened down by a transverse bar
forcing the ends of the strip into a groove across the periphery of the rolls.
That this invention may be well understood I have annexed a sheet of drawings
hereunto, in which ;
Figure 1 is a side view in section, and Figure 2 an end view in plan of my
invention.
Figure 3 is another side section of a modification of the foregoing figures, and
Figure 4 an end view of same.
To carry out my invention I arrange a roll of wood or metal A of the width and
diameter required, its surface being straight or round according to the work to be
done. The said roll is covered by a layer of felt, B as usual, but a space b is left
to form the groove for the transverse straight or curved bar C to lie therein, to
hold the two ends c', of the strip of buffing or sand papering material D. The
roll A is drilled in the centre to the size of the shaft E upon which it is made
secure by screws "not shown ม or by any other suitable means. The said transverse
bar C is supported by two arms or rods F, one on each end of the roll connected to
cranks G or eccentrics, secured upon the shaft H Figures 1 and 2, passing through
the roll, on one end of the roll is secured a thumb piece or hand lever I so arranged
that when it is pressed outwardly "as seen in Figure 2," the rods F and bar Čis
lifted out of the groove in the roll, when the used or worn out sand paper or other
strip or covering can at once be removed without further touching the roll.
Another strip can then be placed on the roll the ends just to meet over the
space the hand lever I is then raised within the circle of the roll, to the position
indicated in Figure 1, when the ends of the strip are made secure.
As a modification of the above I arrange to move the eccentric by turning the
roll and dispensing with the hand lever and in the place of the shaft H.
I employ a collar J or inside cylinder "see Figures 3 and 4" screwed to the
shaft E by screw or screws j¹, upon this collar is mounted the eccentric strap K, to
which are the arms or rods carrying the transverse bar C. In this roll the outside
casing L is fitted loose upon the metal cylinder and is supplied with wood fillings M.
A strip of felt N forming the cover of the roll, with a space left as before described.
The eccentric is turned less than the inside cylinder so that the outer casing of
iron can pass over it. Stops or guides O, are used to steady the movement of the
arms carrying the transverse bar. The transverse bar can be made flat or round
according to the roll employed. And both the eccentric rods and bar may be made
and bent out of stout wire if desired. For very wide rolls the two outer eccentric
levers may not be sufficient to keep the transverse bar from giving somewhat when
liberated from the groove in the roll. To obviate this I may arrange auxiliary
rods at intervals on the shaft H, Figures 1 and 2, passing up holes made in the
roll, and attached at top to the bar, although this would necessitate holes being
made in the felt it would ensure the steady raising and falling of the fastening
device.

page_text: 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 securing or fastening strips or covers to curved or straight surfaced rolls,
the employment of a hand lever and eccentric or eccentrics to operate a transverse
bar for the purpose and in the manner substantially as described.
2. In securing strips or covers to rolls of various shapes and descriptions the
combination with a curved or straight bar carried by eccentric straps at the ends,
of a sleeve or inner cylinder made fast to revolving shaft, and of a loose fitting
cover for same all arranged and operated in the manner substantially as described.
Dated this 18th day of August 1893.
WILLIAM BESTWICK MAXFIELD,
Of 19, Bowling Green Street, Leicester, Registered Patent Agent,
Applicant's Agent.