Improvements in Appliances for Facilitating the Putting Together and Taking to. Pieces of Miners' Safety Lamps.
Year: 1898

page_text: Date of Application, 10th Dec., 1898
Complete Specification Left, 11th Sept., 1899-Accepted, 2nd Dec., 1899
PROVISIONAL SPECIFICATION.
Improvements in Appliances for Facilitating the Putting Together
and Taking to. Pieces of Miners' Safety Lamps.
I, ANDREW HOWAT, of 39, Bamford Road, Didsbury, near Manchester,
Engineer, do hereby declare the nature of my said invention to be as follows:-
This invention has reference to the construction of miners' lamp for which
I obtained Letters Patent No. 2757 on the 3rd day of February 1898, and has
for its object to enable the several parts of the lamp to be put together, or
separated, in a minimum of time, and in a methodical manner, whereby the
risk of omitting any part of the lamp is obviated and each part falls into its
allotted place without any trouble on the part of the attendant."
To that end my invention consists of a, by preference cast metal elongated
plate, adapted to lie upon a table or bench at right angles to the edge of the
bench, and be clamped or fixed thereon. At one end of such plate (by preference
the end nearest the edge of the bench) I form a raised annular edge or ring
producing a well or cavity, corresponding in size and form to the base of the
lamp, and of such a depth as to serve to locate the lamp base, and allow the
two lugs or ears on such base to lie above, or project over the edge or ring.
Immediately behind the said well I form a small boss or stud adapted to
receive and locate the lamp glass, its hoops and the gauze cylinders placed in
vertical column upon it. Beyond such boss I provide another stud or boss
adapted to receive and locate the lamp frame and bonnet placed upon it, the
width of the plate at that point being slightly less than the distance between
the lugs on the opposite sides of the lamp frame so as to allow the said frame
to rest firmly and safely upon the plate, and the two lugs to lie upon each side
and below the level of the plate, as well as to give a definite position to the
frame in relation to the plate.
Upon the front end of the plate I provide a riveting block and upon a small
pin adjacent to said block I pivot a lever having a clench or die adapted to
fix the rivet in the lugs of the lamp.
Such tool, or a similar tool may also serve for removing the rivets.
The advantages of the device are:-Each part of the lamp has its allotted
place and necessitates the placing of the parts together in proper succession,
thereby preventing the omission of the gauze cylinders (which according to
mining regulations is very important) and by having a place for everything
and everything in its place" the time required for fitting the lamp together is
considerably less than any other construction of lamp.
Although I prefer a separate plate for each set of bosses or studs I may
arrange two or more sets upon one plate, and in any suitable relation to each
other with suitable provision for the reception or disposal of the lugs on the
lamp frame.
Dated this Oth day of Donember 1800

page_text: Improvements in Appliances for Facilitating the Putting Together
and Taking to Pieces of Miners' Safety Lamps.
I, ANDREW HOWAT, of 39, Bamford Road, Didsbury, near Manchester,
Engineer, 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 has reference to the construction of miners lamp for which
I obtained Letters Patent No. 2757 on the 3rd day of February 1898 and has
for its object to enable the several parts of the lamp to be put together or
separate in a minimum of time and in a methodical manner whereby the
risk of omitting any part of the lamp is obviated and each part falls into its
allotted place without any trouble on the part of the attendant.
In order that my invention may be easily understood and carried. into effect
I append hereto a sheet of drawings upon which :-
Figure 1 is a side elevation of one application of my invention and Figure 2
a plan.
Figure 3 being a side view of a rivetting tool used therewith.
A is a by preference cast metal elongated plate adapted to lie upon a table
or bench at right angles to the edge of the bench and be clamped thereto or
screwed thereto by means of screws for which holes (A) are provided. At one
end of such plate (by preference the end nearest the edge of the bench)-I
form a raised edge or ring (1) producing a well or cavity (C) corresponding
in size and form to the base of the lamp which is shown dotted in Figure 1,
and this well or cavity is of such a depth as to serve to locate the lamp base
and allow the two lugs or ears on such base to lie above or project over the
edge of the ring (B) and well (C) I form a small base or stud (D) adapted to
receive and locate the lamp glass, its hoops, and the gauze cylinders, partly
shown dotted in Figure 1 placed in vertical column upon it.
Beyond such
boss (D) I provide another stud or box (E) adapted to receive and locate the
lamp frame and bonnet also partly shown dotted which are placed upon it, the
width of the plate (A) at that point being slightly less than the distance
between the lugs on the opposite sides of the lamp frame so as to allow the said
frame to rest firmly and safely upon the plate and the two lugs to lie near each
side and below the level of the plate as well as to give a definite position to
the frame in relation to the plate. I may in some cases dispense with this
second boss or stud (E) and round the plate (A) off at the position indicated
by dotted lines and place the frame of the lamp with the glass, gauze cylinders
and bonnet altogether upon the boss or stud (D) thus saving space and enabling
more plates to be placed on the bench or table where the lamps are manipulated.
Upon the front end of the plate A I provide a riveting block (F) and a small
pin G upon which a lever K such as seen in Figure 3 is pivotted through the
hole (H) having a clench or die (5) adapted to fix the rivets in the lugs of the
lamp.
The advantages of the devices are:-Each part of the lamp has its allotted
place and necessitates the placing of the parts together in proper succession
thereby preventing the omission of the gauze cylinders (which according to
mining regulations is very important) and by having a "place for everything
and everything in its place the time required for fitting the lamp together
is considerably less than any other construction of lamp.
Although I prefer a separate plate for each set of bosses or studs I may

page_text: arrange one or more sets upon on plate and in any suitable relation to each
other with suitable provision for the reception or disposal of the lugs on the
lamp frame.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that
I claim is:-
1st. In means for facilitating the manipulation of miners lamps. A plate
with one or more recesses to receive the lamp base and one or more projections
or studs to receive the lamp glass, gauze cylinders, lamp frame & bonnet
substantially as herein described & illustrated upon the accompanying drawings.
2nd. In combination with the said device a riveting die and riveting tool
as and for the purpose herein set forth.
1000
Dated this in day of Septembe
ANDREW HOWAT.
By John G. Wilson & Co.,
Agents for the Applicant, 55, Market Street, Manchester.