Improvements relating to the Drying and Packing White Lead and the like..
Year: 1894

page_text: Date of Application; 20th Dec., 188).
J.
14
Complete Specification Left, 14th Aug., 1895-Accepted, 23rd Nov. 1895
Improvements relating to the Drying and Packing White Lead and
the like..
.:
EDMUND JARVIS READ, Mechanical Engineer, 1, Kent Road Saint Albans, in
the County of Hertfordshire do hereby declare the nature of this invention to be as
foll
1
This insention consists of a machine, and, appliances for drying, conveying, and,
packing white & other coloured lead and thereby obviate the danger to the health
off workpeople engaged in the, duying, & packing, departments, when, done by hand
laboura
1
By this process the lead is treated, while drying, and, afterwards, deposited, into,
casks on other receptacles, entirely by automatic, machinery, land, consists of the
following parts-viz:
(i) The liat room or heating, chambers, a structure, of brick, or other suitable
material heated by steams pipes. or other, suitable means and covered by..
cisternjor pam of suitable, material, this forming the roof of hot room. The ends of.
the cistern are movable and open outwards, by suitable, gear whereby the lead, can.
ber discharged when dry: Suitable, joints, for, making the ends, watertights when,
closed are provided.
(2). To dry the lead in the cistern, an overhead, traveller of suitable, construction
and material is placed upon an, elevated, tramway, and moves., backwards., and,
forwards directlylover" and-in, a, parallel line, with the cistern..
The traveller, is fitted with suitable arrangements for agitating, the wet lead
thereby permitting the vapour to escape., Amoveable hood on cover is placed over..
the cistern for carrying off the vapour to a shaft or elsewhere.
(3) To discharge the lead. from the cister when dry, an arrangement is attached
to the traveller which I propose to call the ejector, and consists of wood or metal
with rubber; attached for clearing all the dry lead from the cistern and is, worked
by a screw, or rack and pinion attachment" driving, downward into the lead and
ejecting a portion at each stroke of the traveller, This I clain us, part of the
invention, to convey to, and fill gasks for packing
66
(4) The conveyor, is a suitable arrangement. moving the lead to a down, ninet
fitted with a valve or slide for regulating, the supply to, the casks. Attached, to..
the down piperis, an external pipe. or ring worked up and down, by any suitable,
nigans,,on, the end of this I fix a hood, or cover off, suitable, shape, to fit, over the
open, end, of cask, while filling. The cask standing upon.a, weighing machine, t
indicate when the required, quantity is obtained...
Dated this 20th day of' December 1894.

page_text: COMPLETE SPECIFICATION.
Improvements relating to the Drying and Packing White Lead and
the like.
:
EDMUND JARVIS READ Mechanical Engineer No. 1 Kent Road, Saint Albans
Hertfordshire 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 :-
(1) The application of automatic machinery for drying and packing white lead.
My improvements consists of a heating chamber of suitable material with
ventilators for regulating heat. The roof of chamber is formed by an oblong
metal pan.
The heat obtained from steam or hot water is underneath the pan.
(2) The lead to be dried is placed in the pan. The pan is fitted with moveable
ends having suitable means for keeping the ends watertight. The ends are
constructed to traverse the pan longitudinally.
:
(3) An overhead traveller moves backwards and forwards "directly over" and
in a parallel line with the pan. Rows of moveable prongs fixed to slide bars are
attached to the cross beams of traveller for the purpose of agitating wet lead in
the pan. A moveable hood covering conveys fumes and vapour to a shaft or
elsewhere.
(4) An automatic arrangement to discharge lead from the pan when dry is
employed. This consists of boards or strips of metal fastened to frames and
driven from the cross beams of traveller by a feed motion. The frames being
brought into and out of action as desired. The horizontal motion of traveller
forces the portion of lead given by the feed at each stroke into a conveyor, hopper,
or mill.
(5) To convey to casks &c. for packing a revolving screw in a horizontal
cylinder is employed. This moves the lead to a down pipe attached to the cylinder.
The down pipe is fitted with a valve or slide to regulate supply to casks. An :
external telescopic pipe with a conical shaped hood on the lower end is made to
rise and fall on the down pipe the hood covering the open end of cask while
filling.
The cask stands upon a weighing machine to indicate when the required quantity
is obtained.
The accompanying drawings shew the apparatus for the aforesaid purpose.
Fig. 1. is a longitudinal sectional elevation,
Fig. 2. a cross sectional elevation.
A traveller (a) runs upon rails (6) which are fixed to the main framing and are
of sufficient length to allow the traveller to be run out of the way when filling the
drying pan (m). The traveller is moved back & forth sufficient for the rake
prongs (c) and dischargers (d) to slightly pass the centre of the pan by a crank and
connecting rod (e) or other suitable means. Attached to the traveller and reaching
down and nearly touching the bottom of the pan are rake prongs (c) which are
fixed to a bar (f) having a small reciprocating movement and which is moved a 4
little at each stroke by a suitable arrangement, and for the purpose of agitating the
contents of the pan. Also attached to the traveller is an arrangement in the nature
of a strickle (d) which is raised by means of a rack & pinion (H) or other suitable
means and which can be caused to decend automatically by a small amount at each
stroke pushing before it some of the dried lead into the conveyor (i) until all 18 4
expelled.
Mon A WARRIVA

page_text: connected and set in motion, the heat being regulated to a suitable temperature
till the lead is dry. The ends (J) are then drawn back and the discharging
arrangement (d) is put in gear thereby delivering the dried lead into the conveyor (i)
or into a hopper, or mill, for mixing with oil as desired.
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:
(1) Drying lead in an open pan and agitating same while drying by automatic
machinery, thereby saving time and hand labour.
(2) Filling casks and similar vessels with the dried lead by machinery thereby
preventing danger to the health of workpeople who by the old process carry the
lead from the stoves and dump it into casks.
Dated this 13th day of August 1895.
EDMUND J. READ.