Improvements in Buffing-pad Holders, applicable for use in the Buffing or Finishing of the Soles of Boots or Shoes, or for like Operations.
Year: 1894

page_text: Date of Application, 27th Mar., 1894-Accepted, 25th May. 1894
COMPLETE SPECIFICATION.
Improvements in Buffing-pad Holders, applicable for use in the
Buffing or Finishing of the Soles of Boots or Shoes, or for like
Operations.
I, SAMUEL HEY of 56 Low Street Keighley in the County of York, Patent
Agent, do hereby declare the nature of this invention as communicated to ine from
abroad by The Globe Buffer Company of Boston, Massachusetts, United States
of America, 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 generally to buffing pads in which a disk of abrasive
material is supported in position substantially at right angles to the axis of rotation
intersecting the centre of said disk, and particularly to devices of this character in
which the pad is composed of a disk of abrasive material,-the margin of which is
slotted to form tongues which are bent upwardly at an angle to the body of
the pad.
The present invention has for its object to provide improved means for supporting
or holding a tongued pad, and it consists in the improvements which I will now
proceed to describe and claim.
Of the accompanying drawings, forming part of this Specification,
Figure 1 represents a side elevation of a buffing-pad holder and the pad thereon,
constructed in accordance with my invention.
Figure 2 represents a section on line 2-2 of Figure 1.
Figure 3 represents a section similar to Figure 2, showing the tongue-holding
presser raised from its seat.
Figures 4 and 5 represent sectional views of certain modifications, and―
Figures 6 and 7 represent sectional views of other modifications.
The same letters of reference indicate the same parts in all the figures.
In carrying out my invention, I provide a base or support a, which is provided
with a yielding or elastic cushion b, on which the operative portion of the buffing
pad bears. Said cushion is here shown as a diaphragm of rubber or other elastic
material secured to the base a and supported by compressed air introduced into the
chamber or cavity between the said diaphragm and the base a. In the construction
shown in Figures 2 and 3, the diaphragm is secured to the base a by means of its
flange b', which is sprung over the marginal portion of said base. In the construc-
tion shown in the other figures, a clamping ring a' forming a part of the base and
adjustable thereon by means of a screw-threaded connection at a bears upon the
flange of the diaphragm, said ring having a shoulder a³. In the construction
shown in Figures 2 and 3, the upper surface of the flange & forms an annular
vielding seat for the pad tongues c', said seat being arranged in a plane substantially
at right angles to the axis of rotation of the device, and being of yielding or elastic
material.
d represents a presser which is movable toward and from the tongue seat and is
dapted to press the free ends of the tongues down upon said seat and thus bend the
tongues over the marginal portion of the holder. Said presser is preferably an
annular plate having a central opening formed to move freely upon the screw-
threaded tubular stem or shank a formed on the base a.
e represents a flanged nut which is engaged with the screw-threaded shank a and

page_text: bears upon the outer side of the presser d. Said uut when turned in one direction
forces the presser downwardly toward the tongue seat. When the nut is turned in
the opposite direction, the spring 62 interposed between the base a and the presser
forces the latter upwardly with the nut, thus uncovering the tongue seat.
When it is desired to apply the pad to the described holder, the pad tongues c¹
are inclined inwardly as shown in Figure 3, the upper ends of the tongues being
thus carried under the presser d, the latter being raised. The presser is then
depressed and caused to bend the tongues inwardly and force them against the
tongue seat.
It will be seen that the presser and tongue seat constitute members of a clamp
which holds the outer portions of the tongues in a plane substantially at right angles
with the axis of rotation of the device. The clamping of the outer portions of the
tongues and the bending of the tongues over the margin of the holder cause the
tongues to be firmly secured with less liability of slipping between the members of
the clamp than would be the case if the tongues were not bent over the margin of
the holder.
In bending the tongues inwardly, it happens that two or more of them become
superposed. forming unequal thickness of material at different points between the
clamps, so that there is sometimes liability of tongues which are not thus superposed
being loosely held, and slipping out from between the clamps. This liability is
prevented by providing one of the clamping members with an elastic or yielding
section or face, which in Figures 1, 2, and 3 is the flange b'. In Figures 4 and 5,
said section is an annular ring g of elastic rubber inserted in a groove or recess
formed in one of said members. In Figure 4 I show said section g inserted in a
groove in the ring a', the section g being normally of such thickness that it projects
above the tongue seat as shown in Figure 4, so that when the presser is brought
down the section y can yield considerably before it is flush with the rigid surfaces
of the tongue seat.
In Figure 5 I show the yielding section g inserted in a groove in the presser d,
the presser being the same as in the construction shown in Figure 4.
In Figure 6 I show the ring a provided with an upwardly projecting annular
rib a³, and the presser d provided with a corresponding annular groove do formed to
receive said rib, the groove being considerably wider than the rib.
Each tongue is
therefore bent over the angles formed by the sides of the groove d³ and over those
formed by the upper edge of the rib a³.
By either of the constructions above described, I prevent any liability of the
slipping of the tongues between the members between which they are clamped.
Figure 7 shows a rib or flange a on the presser, and a groove d' in the ring a
wider than said flange. The tongue seat in this case is the bottom of said groove,
which is preferably surfaced with rubber by the insertion of a rubber section ? into
the groove. The shoulder a³ in this modification is formed by the intersection of
one side of the groove d³ with the margin of the ring a'.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
1. A buffing pad holder comprising, first, a pad-supporting cushioned base or
body having a pad tongue seat, and secondly, a presser adapted to force the pad
tongues against said seat, the tongues being bent over the margin of the holder
by the presser.
2. A buffing pad holder comprising, first, a cushioned base having a pad tongue
seat, and secondly, a presser adapted to force the pad tongues against said seat and
bend them over the margin of the holder, the said seat and presser constituting a
clamp which is provided with means substantially as described for preventing the
slipping of the tongues between its acting surfaces.
3. A buffing pad holder comprising, first, a cushioned base having a pad tongue
seat, and secondly, a pressor adapted to force the pad tongues against said seat,

page_text: said seat and presser constituting a clamp having a yielding member, whereby the
pad tongues are prevented from slipping between the parts of the clamp.
4. In a buffing pad holder, the combination of the base having a pad cushion and
a pad tongue seat, the presser movable toward and from said seat, a spring which
normally separates the presser from the seat, and meaus for forcing the presser
against the seat.
5. The combination of a buffing pad having marginal tongues, and a holder com-
prising a base having a pad cushion and a pad tongue seat, a presser movable
toward and from the seat and adapted to press the tongues against the seat and at
the same time bend the tongues over the margin of the holder, and means for
forcing the presser against the seat.
nul 1
SML 1004
SAMUEL HEY.