IMPROVE- MENTS IN MACHINERY OR APPARATUS FOR CLEANING SAFETY LAMPS
Year: 1879

page_text: LETTERS PATENT to William Ackroyd, the younger, and William Best, both of
Morley, near Leeds, in the County of York, for the Invention of "IMPROVE-
MENTS IN MACHINERY OR APPARATUS FOR CLEANING SAFETY LAMPS."
Sealed the 27th January 1880, and dated the 30th July 1879.
PROVISIONAL SPECIFICATION left by the said William Ackroyd and William
Best at the Office of the Commissioners of Patents on the 30th July 1879.
WILLIAM ACKROYD, the younger, and WILLIAM BEST, both of Morley, near Leeds,
in the County of York: "IMPROVEMENTS IN MACHINERY, OR APPARATUS FOR
CLEANING SAFETY LAMPS."
The object of our Invention is to effect a great saving of time and labour in the
cleaning of the various parts of a safety lamp.
For cleaning the gauze we employ a cylindrical rotating brush surrounded by
any required number of spindles, on which the gauzes are placed and retained
thereby in contact and caused to revolve simultaneously with the rotating cylinder;
by this means the gauzes are perfectly cleaned; but previous to applying this
arrangement a rotating brush is applied in the interior. The whole are mounted
in bearings on suitable standards or framework..
On the same framework or standards are mounted spindles carrying discs,
having on their faces brushes of suitable form; these are caused to revolve at any
convenient speed and in pairs, one wet and one dry, the wet brush being used for
cleaning the body and other parts of the lamp, and the dry brush for polishing thie
same.
On the ends of the spindles we also provide conical forms; these are employed
for screwing on and off the glass ring."
We also use other projecting stationary pieces, whereby the attendant is enabled
to slacken the "glass ring" or tighten it in its position.
1

page_text: On the framework a are other spindles and m, by preference in adjustable
bearings, on which are fixed discs n, having on their faces brushes o of suitable
form; these are caused to revolve at any convenient speed, and are used to clean
and polish the body and other parts of the lamp; these brushes o may be used
either wet or dry, in the former state for cleaning the dirt off and in the latter for
polishing.
On the ends of the spindles and m we also provide conical forms p for screwing
on and off the metal ring known as the "glass ring."
We also employ in combination with this machine the stationary projecting
pieces q, whereby the attendant is enabled to slacken the metal ring known as the
glass ring" or tighten it in its position.
Motion is transmitted to the various spindles and brushes through pulleys r from
any suitable or convenient motive power.
Having now described the nature of our said Invention, and described with the
aid of Drawings how the same may be carried into practice, we would have it
understood that we do not limit ourselves to the precise details or configuration of
the parts we have described and shewn, as the same may be varied or modified
without, departing from the nature of our said Invention, but what we claim and
desire to be secured to us by Letters Patent is,―
The arrangement, construction, and combination of the various parts forming the
machinery or apparatus for cleaning safety lamps, substantially as herein set
forth.
In witness whereof, I, the said William Ackroyd, the younger, for myself
and on behalf of the said William Best, have hereunto set my hand and
seal, this Twentysixth day of January, in the year of our Lord One thousand
eight hundred and eighty.
Witness to the signature of
the said William Ackroyd,-
the younger,
WM. FAIRBURN HART,
Messrs. A. R. & J. W. Harding's,
Engineers and Patent Agents,
2, East Parade,
Leeds.
WILLIAM ACKROYD, JR. (L.S.)