Year: 1886

page_text: I ALFRED LOVEKIN of Regent Street Birmingham in the County of Warwick
Jeweller do hereby declare the nature of this invention to be as follows:-
These Improvements have for their object the regulating of the flame and the
instantaneous: turning off and on of the flame and consist in the construction of an
apparatus as follows. To an ordinary blow pipe arrangement such as we now have
in use, I apply a tube to carry a pilot-light to the nozzle of the blow pipe with a
tap to turn the gas on or off. In the place of the ordinary gas cock I apply a lever
cock, to one end of this lever is attached a rod or wire connected with a treddle
the other end of the lever being attached to a rod or wire held down by a spring
so that the action of the treddle will be to pull down the lever and turn on the
gas and directly pressure is taken off the treddle the spring will bring back the
other end of the lever and turn off the gas.
To regulate the pressure of the gas a bracket or upright piece is placed upon the
work bench so that an adjustable projection upon it shall stop the fall of the lever
arm at any desired point and an adjustable screw may also be placed upon the
lever arm so that the distance. of fall of the lever arm may be regulated to a nicety
and thus the amount of gas allowed to pass the cock is varied at will!

page_text: I, ALFRED LOVEKIN of Regent Street Birmingham in the County of Warwick
Jeweller, do hereby declare the nature of this invention for IMPROVEMENTS IN
BLOW PIPES and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
These improvements have for their object the regulating of the flame and the
instantaneous turning off and on of the flame and consist in the construction of
an apparatus as follows.
To an ordinary Blow Pipe arrangement such as we now have in use I apply
a tube to carry a pilot light to the nozzle of the blow pipe with a tap to turn the
gas on and off.
In the place of the ordinary gas cock I apply a lever cock to one end of this
lever is attached a rod or wire connected with a treadle, the other end of the lever
being attached to a rod or wire held down by a spring so that the action of the
treadle will be to pull down the lever and turn on the gas and directly pressure is
taken off the treadle the spring will bring back the other end of the lever and
turn off the gas.
To regulate the pressure of the gas a bracket or upright piece is placed upon the
work bench so that an adjustable projection upon it shall stop the fall of the lever
arm at any desired point and an adjustable screw may also be placed upon the
lever arm so that the distance of fall of the lever arm may be regulated to a nicety
and thus the amount of gas allowed to pass the cock is varied at will.
Or the above arrangement may be simplified by dispensing with the bracket or
upright piece and fixing upon the fitting a projection with which an adjusting
screw upon the lever arm will come in contact and thus adjusting this screw will
regulate the fall of the lever arm,,
REFERRING TO THE DRAWINGS.
Fig. 1 is a view of one of my blow pipes (A) is the pilot tube with the regulating
tap (B) (C) is the lever to one end of which is attached a rod or wire (D) which
passes through the bench and is carried into the tube (E) at (F) Fig. 2 and from
thence to the treadle (G) Fig. 3 at the other end of the lever is the rod or wire (H)
held down by the spring (1) so that the action of the treadle (G) will pull down
one end of the lever (C) and turn on the gas in the main tube (L).
Directly pressure is taken off the treadle (G) the spring (I) will bring down the
other end of the lever and turn off the gas.
(J) is an adjusting screw upon the lever (C) which will come into contact with
the projecting piece (K) and thus stop the fall of the lever (C).
The regulating of the screw (J) governing the fall of the lever (C) regulates the
extent to which the lever (C) turns the tap and thus regulates the supply of gas
through the main tube (L).

page_text: I do not confine myself to the precise details herein set forth as the fall of lever
cock the regulating of the fall and the arrangement of the treadle action may be
varied without deviating from the Invention.
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 what
I claim is
The regulating of the flame and the instantaneous turning off and on of the
flame substantially as herein set forth and specified.