An Improved Bush for Fastening Revoluble Brushes, Buffs, Laps, Pads, Emery Wheels, and the like to their Spindles.
Year: 1896

page_text: Date of Application, 23rd May, 1896
Complete Specification Left, 17th Feb., 1897-Accepted, 20th Mar., 1897
OVISIONAL SPE
An Improved Bush for Fastening Revoluble Brushes, Buffs, Laps,
Pads, Emery Wheels, and the like to their Spindles.
We, LEWIS BRADSHAW, of the Steam Brush Works, Brush Manufacturer, and
CHARLES WHITFIELD, of 39 Bowling Green Road, Engineer, both in Kettering, in
the County of Northampton do hereby declare the nature of this invention to be as
follows:-
This invention relates to revoluble brushes, emery wheels, and the like which are
fastened upon and rotate with central spindles, and it consists in an improved form of
bush or hub, by the use of which the brush, emery wheel, or the like can be mounted
upon and rigidly fastened to the spindle with which it rotates.
The bush or hub is of the form of a sleeve which is bored approximately to the
diameter of the spindle to which it is to be fastened. The sleeve is screwed exteriorly
at one end so as to receive a nut or collar by means of which the whole is clamped
together, and at the other end has the form of a truncated cone, the largest diameter
being at the extreme end. The coned end has a number of longitudinal slits cut into
it sufficiently far to allow the segments into which the coned end of the sleeve is
divided by such slits to be forced inwardly to an extent sufficient to tighten this end
sleeve upon the spindle. A collar bored interiorly to an angle which corresponds with
that of the coned end of the sleeve, fits upon the sleeve, and it is bored to such a
diameter relative to the sleeve that while it slides freely upon the body of the latter, it
cannot pass over its coned end.
The bush and brush or the like are fastened to the spindle as follows:-The bush
with its collar is slipped upon the spindle to the position required, the brush or the
like is then placed upon the sleeve far enough to bring one of its sides up to touch
the collar, and the nut is then screwed upon the other end of the sleeve until it touches
the other side of the brush or the like. The nut is then forced by means of a spanner
or other device up against the brush and this forcing the collar tightly upon the
conical part of the sleeve causes the segments of the same to be forced inwards, and
grip the spindle tightly. The spindle, sleeve, and brush are thus by one operation
fixed rigidly together.
For the purpose of retaining the collar in its position when the nut and brush are
removed from the sleeve we in some cases form shallow grooves in the coned end of
the sleeve, and fix one or more screws in the collar in such manner that the points of
the screws project into the grooves, and while allowing the collar to slide far enough
to tighten up the sleeve, yet prevent it falling off the sleeve.
In some cases the screwed end of the bush is also divided in the same manner, but
it is obvious that this is applicable only where the diameters of the hole in the bush,
and the spindle correspond closely.
This invention is equally applicable to milling cutters, or any other cutting, grinding,
or rubbing device which is mounted upon a revoluble spindle.
Dated this 23rd day of May 1896.
WILLIAM J. MUNDEN,
106 Priory Park Road, Kilburn, London, N.W., Agent for the Applicants.

page_text: An Improved Bush for Fastening Revoluble Brushes, Buffs, Laps,
Pads, Emery Wheels, and the like to their Spindles.
We, LEWIS BRADSHAW of the Steam Brush Works, Brush Manufacturer, and
CHARLES WHITFIELD of 39 Bowling Green Road, Engineer, both in Kettering, in
the County of Northampton, 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 revoluble brushes, emery wheels, and the like, which are
fastened upon and rotate with central spindles; and it consists in an improved form of
bush or hub, by the use of which the brush, emery wheel or the like can be mounted
upon and rigidly fastened to the spindle with which it rotates.
In the accompanying drawing is shewn a rotary brush having a wood centre, and
the means of fixing it to a spindle, the same letters being used to indicate similar parts,
or parts fulfilling the same functions.
Fig. 1 is an elevation of a spindle, bush, and brush.
Fig. 2 is an end elevation of a bush.
Fig. 3 is a vertical section of a bush and collar.
Fig. 4 is an elevation, and
Fig. 5 a section shewing means for preventing the collar sliding off.
A indicates the spindle to which the bush and brush or the like is to be fastened;
this may be formed of any suitable metal and run in any convenient kind of bearing.
The bush B is in the form of a sleeve, the bore of which is of such a diameter that it
can be slid easily upon it, while capable of gripping it firmly when the slit end is
compressed. One end of this sleeve is screwed externally so as to engage with the
threads of a nut or collar C, while the other end 6. is formed of the shape of a
truncated cone, the largest diameter of which is at the extreme end; the intermediate
parts being of a diameter equal to the screwed part b. The coned end has a number
of longitudinal slits 62 cut into it, sufficiently far to allow the segments 63 into which
these slits divide the coned end, to be forced inwardly to an extent sufficient to tighten
this end of the sleeve upon the spindle. A collar D bored interiorly to an angle which
corresponds to that of the coned end b' of the sleeve, fits upon it, and is bored to such a
diameter that while it can slide freely upon the end b or middle part of the sleeve it
cannot pass over its coned end. The collar is shewn as having holes c formed in it,
for receiving the point of a bar or "tommy" by means of which it may be turned,
but a nut of any convenient kind may be employed and turned by means of a spanner
or other device.
The brush M may be of any description and is here shewn as having a wood centre N
which is bored and arranged between two washers O; these however not being essential.
The bush and brush are fastened to the spindle as follows:-The bush or sleeve B with
the collar D is slipped upon the spindle to the position required; the brush M and
washers O are then placed upon the sleeve until one washer touches the collar D. The
collar or nut C is then screwed upon the end 6 of the bush B, and being tightened up
by means of the "tommy or spanner, it forces the collar D tightly upon the conical
part of the sleeve, thus causing the segments 63 of the same to be forced inwards,
and grip the spindle A tightly. The spindle A, the bush B and the brush M are thus
by one operation fixed rigidly together.
For the purpose of retaining the collar D in its position when the nut and brush
are removed from the sleeve, the device shewn in Figs. 4 and 5 is sometimes employed.
A shallow groove or grooves G (one only is shewn) is formed in the exterior surface
of the coned end 6' of the bush B, and I fix a pin or screw g in the collar D with the

page_text: part projecting into the groove as shewn. It will be seen that by this means while
the collar D is thus left free to move far enough to tighten up the sleeve, yet it..
cannot be removed entirely from the sleeve.
In some cases the screwed end of the bush is also divided in the same manner, but
it is obvious this is applicable only where the diameters of the hole in the bush and
the spindle correspond closely.
This invention is equally applicable to milling cutters, or any other cutting, grinding
or rubbing device which is mounted upon a revoluble spindle.
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. A bush for fastening revoluble brushes, wheels and the like to their spindles, in
which the screwing of a nut or collar on one end of the bush forces together the other
end of the sleeve, which is formed into segments by slits, so as to tighten the sleeve
upon the spindle, substantially as shewn and described.
2. A bush for fastening revoluble brushes, wheels and the like to their spindles, in
which the screwing of a nut or collar on one end of the bush simultaneously tightens
the brush or wheel in position upon the bush, and grips the bush upon the spindle,
substantially as shewn and described.
3. For fastening revoluble brushes, wheels, and the like to their spindles, the
combination of the bush B having a coned end 61, slits 62, and a screwed end b;
the collar D tapered internally to fit the coned 'end of the bush B; and the screwed
nut or collar C, substantially as shewn and described.
4. For fastening revoluble brushes, wheels and the like to their spindles, the
combination of the bush B having a coned end b, slits 62, and a screwed end B;
the collar D tapered internally to fit the coned end of the bush B and having a
pin g which fits a groove in the bush; and the screwed nut or collar C, substantially
as shewn and described.
5. A bush for fastening revoluble brushes, wheels, and the like to their spindles,.
constructed substantially in the manner and for the purpose hereinbefore described.
Dated this 16th day of February 1897.
WILLIAM J. MUNDEN,
75 Chancery Lane, W.C., Agent for the Applicants..