Year: 1895

page_text: Date of Application, 15th Oct., 1895-Accepted, 16th Nov., 1895

page_text: successively after which they will pass under the pressure piston by which the
briquette is formed and on the next turn the same form passes under an extracting
piston by which the briquette is extracted below where the briquettes may be
received either on a plate or on an endless canvas.
The above described revolution will be repeated without interruption as long as
there is material in the kneading apparatus.
The Intter may he fed either by hand or with the aid of an endless band or in
any other suitable manner.
To make good briquettes it is chiefly necessary that the pressure exercised on
the conl be always even, varying from between 70 to a 100 kilogrammes per square
centimeter of briquette.
To obtain this result we make use of an hydraulic piston shown by Fig. 4 of
the drawings.
This pressure piston consists of two principal parts one of which A compresses
the coal in the mould, the other B receives its alternate motion from the connecting
rods. The piston A has a cylindrical core which penetrates into the part
hollowed out for this purpose joint is made by a collar of leather. The two parts.
of the piston are separated by water in the space C.
The pressure from A is transmitted to B by the aid of this liquid.
The upper part A of the piston has 4 channels a1 a 1 and 1 1 which have
each a valve, two d2 d2 opening from the outside into the interior for suction,
the others a 2 a 2 from inside to the outside for compression.
The two valves a' a' are pressed either by weight or by springs in such a manner
that when the pressure on the briquette surpasses the adopted limit of say
70-100 kilogrammes per square centimeter according to the nature of the coal or
the composition of the paste, the play of the valves regulated by the weights or
springs will prevent the pressure from exceeding the maximum limit adopted.
For manufacturing perforated briquettes with well opened holes we use the
apparatus shown in Fig. 5.
Here represents the plate bearing the moulds, C1 is the counter plate on
which the pressure is done. A 3 the space for the briquette material.
are the perforators making holes in the briquettes.
These perforators are slightly longer than the thickness of the briquette, thus at
the end of the course of the piston these perforators enter into holes 3 in the
counter plates. This action punches out also small cylindrical briquettes g 1 which
may thus be cut of any required length.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed declare that what I
claim is-
1. A portable engine for agglomerating coal described herein before comprising
the parts of the engine suitable for manufacturing briquettes in combination with
a vehicular frame.
2. In an engine for manufacturing briquettes the hydraulic piston, substantially
as and for the purpose set forth.
3. In an engine for manufacturing briquettes the perforating device berein
described.
4. The combination of a briquette making machine having the hydraulic cylinder
and perforating devices as described with a vehicular frame for the purpose set
forth.
Dated this 16th day of October 1895.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C.,
Agents LO Applicant.