Improvements in or relating to Buffing, Sand Papering, or Heel Scouring Machines.
Year: 1891

page_text: Date of Application, 12th Jan., 1891
Complete Specification Left 12th Oct. 1891-Accepted. 21st Nov.. 1891
PROVISIONAL SPECIFICATION.
Improvements in or relating to Buffing, Sand Papering, or Heel
Scouring Machines.
I, ALFRED BURKE FOWLER, of Exeter, in the County of Rockingham and
State of New Hampshire, in the United States of America, Engineer and General
Manager of the Rockingham Machine Company of that Town, do hereby declare
the nature of this invention to be as follows:-
This invention consists of improvements in or relating to buffing, sand papering,
or heel scouring machines which carry an horizontal tool shaft and driven in any
desired way to obtain a quick revolution to the shaft and refers to the means and
devices hereinafter described for more effectively fixing and securing the sand
paper strips, or strips of other abrasive substance to the roll and facilitate the
removal of same when fresh ones are required, by the employment of suitable
locking devices for securing the roll when closed, and releasing a portion thereof
when required.
Upon the tool shaft are mounted flanges having upon their internal faces eccentric
annular slots, which engage pins projecting from each end of the hinged movable
part of the roll, which for broad rolls are made in two halves, one being made fast
to the shaft by a pin or set screw, the other being held in rotary connection by
means of a spline and pin or key is free to move longitudinally. It it is removed
wholly from the pin or key it is free to rotate. The sleeve with keyed flange is
spring pressed so that when free it is held in contact with the roll, the said roll
being constructed as before stated as is common in halves internally hinged together,
one part of which is held upon the shaft by its attached collars, the other part
being so made and arranged to open and close the locking pin of the movable part
coming into eccentric grooves in the flanges at either end to firmly close the two
parts of the roll together by turning the roll.
But if the roll is turned in an opposite direction and the spring pressed mill
headed flanged sleeve is longitudinally moved along the shaft, and turned slightly
around it, it becomes locked away from the roll, when by longitudinally moving
the roll in the same direction, after turning it to remove the locking pins from the
grooves the roll can be opened and the abrasive material removed, and a fresh strip is
put thereon by fixing one end on to pins arranged in the longitudinal edge of the part
which opens, then carrying it round the roll and bringing the other end and turning
it in on the open edge of the fixed part, then pressing the two together, and causing
the locking pins to engage with the slots in the collars, and bringing the splined
sleeve in contact with the roll, it is ready for use.
A modification of the foregoing appliance is necessary for the narrow roll used
for scouring the shanks or heels and which is mounted by preference on the outer
end of the tool shaft, only a portion of the roll is hinged in this case, the abrasive
material being secured in like manner to the other the opening portion closing on
to a locking pin in the correspondingly grooved portion of the roll, in the bore of
which is cut a slot to engage a projecting pin on the tool shaft, to put the spring
pressed sleeve in contact therewith a pin in the collar thereof enters an eccentric
groove in the flange of the roll, it is released in a like manner to the one before
mentioned.
The construction of the aforesaid appliances reducing to a minimum any danger
from the roll flying open during its rapid revolution in any of the operations herein
referred to.
Dated this 5th day of Janu1001
WILLIAM BESTWICK MAXFIELD,
Leicester, England, Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Buffing, Sand Papering, or Heel
Scouring Machines.
I, ALFRED BURKE FOWLER, of Exeter, in the County of Rockingham and
State of New Hampshire, in the United States of America, Engineer and General
Manager of the Rockingham Machine Company of that Town, 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 consists of improvements in or relating to buffing, sand-papering,
or heel scouring machines which carry an horizontal tool shaft and driven in any
desired way to obtain a quick revolution to the shaft and refers to the means and
devices hereinafter described for the more effectively fixing and securing the sand
paper strips, or strips of other abrasive substance to the roll, and to facilitate the
removal of same when fresh ones are required, by the employment of suitable
locking devices for securing the roll when closed and releasing a portion thereof
when required the said scouring rolls are particularly designed for the purpose of
scouring or abrading the bottoms of soles and heels on boots or shoes, although it is
equally useful for other scouring or abraiding purposes. The invention is carried
out as follows, reference being had to the accompanying drawings, in which
Figure 1 is a side elevation of the narrow roll used for scouring the shanks of
heels and which is mounted on the outer end of the tool shaft, showing the hinged
segmental portion swung open detaching and attaching the abrasive material.
Figure 2 represents in cross section on line X-X Figure 1, showing the hinged
segment locked in position when the scouring roll is in use; and
Figure 3 is a central longitudinal section on line Y-Y Figure 2 showing the
tool shaft, its pulley and bearings in elevation.
Similar letters refer to like parts wherever they occur in the drawings to which
I will now refer to.
In the sheet of drawings annexed A is the bracket or standard of desired
any
size and shape having suitable bearings a, a, in which the tool shaft B is journaled,
upon the said shaft is the pulley B', to which a rotary motion is conveyed by means
of belt power usual in machines of this construction.
The improved scouring roll is composed of two parts preferably made of wood, the
main portion C, and a segmental smaller portion C₁, which together form a cylindrical
roll. The parts C and C¹ being hinged together at c Figures 1 and 2. The part C
is preferably secured to a metal flange 1) having a sleeve d loosely journaled on
the shaft B Figures 1 and 3. It is not necessary that the sleeve d'or hub of the
roll should be entirely free on the shaft B, as it may to advantage be limited in its
motion thereon by means of a slot and key or equivalent device, it being only
necessary that the roll and its hub should be capable of being oscillated a part of a
revolution on the said shaft for the purpose of attaching and detaching it to and
from the locking disc hereinafter described-b is a shoulder or projection on the
shaft B against which the flange D is held (seen in Figures 1 and 3). E is an elastic
cushion surrounding the roll portions C, C', it being divided at the meeting edge C".
Figure 2, the said cushion is made of felt or other suitable elastic or yielding
material. F is the abrasive covering which is preferably composed of a sheet or
strip of sand paper, emery paper, or the like, which encloses the cushion E and is
lapped over the meeting edges C, of the roll parts C and C₁ "see Figure 2." The
improved locking device for securing the roll parts C and C¹, together and to the
shaft B is constructed as follows: It consists of a disc G journaled on the shaft B
and locked in adjustable positions on the latter by means of a pin B₁ secured to the
said shaft and projecting through a bayonet slot g, in the hub of the locking disc G.
The disc is normally forced against the roll C and C¹ by the influence of a spring H
surrounding the shaft B between the outer end of the hub of the disc & and a

page_text: collar or projection B³ secured to the outer end of the shaft B, "seen in Figures 1
and 3." Gis an eccentric, inclined or cam slot hole in the locking disc G adapted to
receive a pin C³, on the segment C', when the said disc is liberated and moves towards
the roll C, C¹, in locking the roll and disc together. The operation is carried out
in the following manner. If it is desired to remove the abrasive covering and
replace it with another, the disc G is moved away from the roll and turned
sufficiently around the shaft to cause the pin B" to enter the lateral portion of the
slot "g" when it will be locked and held in position by the influence of the spring H
see Figure 1; the segment C', may now be swung outwards as shown in Figure 1 to
permit the removal of the worn abrasive covering and wrapping a new one in its
place after which the segment C' is closed by swinging it to the position shown in
Figure 2; The disc G is then turned slightly on the shaft B so as to cause the
pin B", to enter the longitudinal portion of the slot "g" causing the pin C³ on
the segment G¹ to enter the slot hole C, (shown in Figure 3). By turning the
roll C, C', and causing the pin C³, on the segment C to enter the slot hole G', (also
seen in Figure 3) by turning the roll C, C', slightly in the direction of the arrow C",
Figure 2, the roll parts C, C', will be clamped together and to the disc G which is
secured to the shaft, and also causing the turned in edges of the sand paper or other
abrasive covering F to be clamped between the adjoining edges of the roll parts C, C',
shown in Figures 2 and 3. To disengage the roll from the locking disc G, the roll
is turned slightly in an opposite direction and the locking disc moved to the position
as shown in Figure 1. It will be well understood that for narrow rolls as illustrated
in the drawings a single locking disc is sufficient, but for wide or broad rolls for
scouring the bottoms of boots or shoes I may prefer to use two locking discs, one
at each end of the roll, without departing from the principle of my invention. By
the construction and arrangement of the contrivances to facilitate the before
mentioned operation any danger from the rolls flying open is reduced to minimum.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is:
1. The combination with a tool shaft, of a scouring roll composed of two
sections, one of which is hung on the shaft and the other hinged to the former and
provided with a laterally projecting locking pin, and a longitudinally movable and
rotating locking disc having an eccentric groove or slot and loosely mounted on
the shaft for causing the groove or slot to engage and disengage the locking pin,
and the means described for locking the disc or discs against longitudinal movement
when engaged with the locking pin, as herein specified.
2. Improvements in or relating to buffing, sand-papering or heel scouring machines
by the employment of narrow or wide rolls in half sections or segments locked or
released, and the abrasive material secured therein substantially in the manner and
for the purpose hereinbefore described and set forth.
Dated this 1st day of October 1891.
WILLIAM BESTWICK MAXFIELD,
"The Central" Patent Office, Leicester, England, Applicant's Agent.