Improvements in Brushes for Cleaning Davy or Safety Lamps and the like.
Year: 1892

page_text: Date of Application, 18th Feb., 1892
Complete Specification Left, 17th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
Improvements in Brushes for Cleaning Davy or Safety Lamps and
the like.
We, GATHORN ORMONDROYD, of Wibsey near Bradford in the County of
York, Woolsorter, and WALTER WEBSTER, of Thackley near Bradford aforesaid
Mill Manager, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in hand or machine brushes for cleaning
Davy or safety lamps and the like and particularly to improvements in the brush
described in Patent Specification No. 14,450 dated September 13th A.D. 1889.
The said improvements principally consist in forming the brush with a reversible
body or stock so that when the front end next to the head is worn down the other
end may be turned to that position.
For this purpose we preferably form the brush body hollow or of annular
section and to facilitate the insertion of the bristles it is divided longitudinally and
the two halves afterwards glued or otherwise secured together. This reversible
body is mounted on an arbor or spindle having a T shaped end the two arms of
which lie in cross cuts formed in the end faces of the brush body and thus cause the
body to rotate with the arbor. In hand brushes the handle is screwed on the
opposite end of such arbor and has preferably a sleeve mounted thereon having
projections to fit the said cross cuts at that end of the body. This sleeve is
arranged to slide longitudinally in and out of position but is prevented from
independent rotation. In the case of machine brushes the chuck is provided with
such a sleeve and the arbor besides being screwed into the chuck preferably passes
through it into the socket of the machine and the end of the chuck is cut away so
that the binding screw of the socket can bear directly upon the arbor and so hold
both the arbor and chuck.
The detachable head or crown is preferably secured in position by two claws
formed at the back arranged to hook round the arms of the T and of the arbor and
be thus confined in the cross cuts at the end of the brush body.
Dated this 17th dev of February 1899
DRACUP & NOWELL,
Bradford, Agents.
COMPLETE SPECIFICATION.
Improvements in Brushes for Cleaning Davy or Safety Lamps and
the like.
We, GATHORN ORMONDROYD, of Wibsey, near Bradford, in the County of
York, Woolsorter, and WALTER WEBSTER, of Thackley, near Bradford, afore-
said, Mill Manager, 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 hand or machine brushes for cleaning
Davy or safety lamps and the like and particularly to improvements in the brush
described in Patent Specification No. 14450, dated September 13th A.D. 1889.
The said improvements principally consist in forming the brush with a reversible
body or stock so that when the front end next to the head is worn down the other
end may be turned to that position.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar letters of reference indicate corresponding parts
in each of the figures.

page_text: Figure 1, is a longitudinal section of our improved brush with the chuck for
fitting it into the brush machine. Some of the bristles are omitted to more clearly
show the body of the brush.
Figure 2, is a longitudinal section of the same and also the socket of the machine
in which the said chuck is fitted. The bristles are entirely omitted in this figure
and the holes in the body for their reception are shown black.
Figure 3, is a longitudinal view of the holder complete for hand-brushes, and
Figure 4, is an end view of the same.
Figures 5 and 6 are longitudinal views at right angles to each other of half the
brush body without the bristles, and Figure 7, is an end view of the same.
Figures 8 and 9 are separate views at right angles to each other of the detach-
able head of the brush. And Figure 10, is a separate longitudinal view of the said
chuck.
The cylindrical body A of the brush is divided longitudinally to facilitating
fixing the bristles B as usual in this form of brush but in this case the two halves
are afterwards glued or otherwise secured together. Previously to the body A
being divided or at any convenient stage of its manufacture a central longitudinal
hole is made through it adapting it to be mounted upon the spindle or arbor C.
The spindle or arbor C is provided with two short arms D, D forming a tee shaped
end and the detachable brush head E is mounted upon such arms by the two claws
or lugs F. Feach having a hole G to fit upon one of said arms. Cross cuts or
notches H, H are made in the end of the brush body to receive the lugs F, F and
allow the said end to fit closely to and be tightly clamped against the head E by
the chuck J (secured upon the screw thread K formed on the spindle C) bearing
against the other end of the body A. By this arrangement the continuity of the
bristles between the head and the body of the finished brush is preserved that is to
say there is practically no break in the outline of the brush at the junction of the
head and the body. Notches H, H are made in each end of the body to enable it
to be reversed.
The chuck J is cut away at the end L fitting the socket M of the machine to
allow the set screw N to bear directly upon the end of the spindle C and thus clamp
both it and the chuck rigidly in position.
For hand brushes we preferably dispense with the sleeve mentioned in our
Provisional Specification and we screw the spindle C (Figure 3) directly into the
screw socket ( secured to the handle P. And a flat face or flat faces are formed
on the screwed portion of the spindle for the set screw R fitted in the socket O to
bear against.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A reversible brush for cleaning the interior of safety lamps, substantially as
herein shown and described and illustrated in the accompanying drawings.
2. In a brush for cleaning the interior of safety lamps having a detachable head
the method of attaching the head to the end of the spindle or arbor on which the
brush is mounted, substantially as herein shown and described.
3. A brush body for cleaning the interior of safety lamps having a cross cut or
cross cuts Hat one or both ends adapted to receive the lugs of a detachable head,
substantially as herein shown and described.
4. The combination with a spindle adapted to carry a machine brush for cleaning
the interior of safety lamps of a chuck for said spindle cut away at the end fitting
the socket of the machine to enable the set screw of said socket to bear directly
upon the said spindle, substantially as herein shown and described.
Dated this 15th day of December 180“
DRACUP & NOWELL,
Bradford, Agents.