Improved Combined Digester, Dryer, Washer, and Disinfector for Bones, Fat, Meat, Glue, and other Materials.
Year: 1893

page_text: Date of Application, 27th Mar., 1893
Complete Specification Left. 27 h Dec., 1893-Accepted, 27th Mar:, 1894
PROVISIONAL SPECIFICATION.
Improved Combined Digester, Dryer, Washer, and Disinfector for
Bones, Fat, Meat, Glue, and other Materials.
1 HARRY GEORGE WARNER of 5 Saint Ann's Park Terrace, Wandsworth in
the County of Surrey, Engineer, do hereby declare the nature of this invention
to be as follows:-
According to this invention inside a vessel which may be of the form of an
ordinary digester or other suitable shape as the kind of material to be treated
may require I fix a lining of iron or other material.
The said lining may be made of iron black galvanized or enamelled or other
material wire work or bars either whole or in segments to allow for cleaning and
is so fixed that the steam, hot air or gas may circulate freely round the material
being treated so as to facilitate the heating and allow the grease oil gelatine or
other extract to flow through the false bottom instead of all having to pass
through the mass inside the lining.
In adapting this lining to digesters now in use, a grating would be fitted inside
the lower door to prevent the material falling out while drying or hot air may
be applied at the lower door.
The exit of the vapour in drying may be assisted by forming a chamber over
the top and connecting with a shaft or exhaust fan to the outer air, or furnace
to consume the foul vapours.
"
Where required it is proposed to fix a perforated ring inside the top to form
a washer or a disinfectant may be used.
A perforated coil is fixed inside at the bottom to distribute the steam where
a false bottom is not used.
When the material cannot be charged and withdrawn by the existing doors
it is enclosed in a cage and let down by a large door at the top.
For materials requiring agitation a shaft is passed through carrying arms from
top to bottom and both charging and drawing doors are placed at the side.
Dated this 27th day of March 1893.
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicant.
COMPLETE SPECIFICATION.
Improved Combined Digester, Dryer, Washer, and Disinfector for
Bones, Fat, Meat, Glue, and other Materials.
I HARRY GEORGE WARNER of 5 Saint Ann's Park Terrace, Wandsworth in
the County of Surrey, 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 :-
According to this invention inside a vessel which may be of the form of an
ordinary digester or other suitable shape as the kind of material to be treated may
require I fix a lining of iron or other material.

page_text: The said lining may be made of iron black galvanized or enamelled or other
material wire work or bars either whole or in segments to allow for cleaning and is
so fixed that the steam, hot air or gas may circulate freely round, the material
being treated so as to facilitate the heating and allow the grease oil gelatine or
other extract to flow through the false bottom instead of all having to pass through
the mass inside the lining.
In adapting this lining to digesters now in use, a grating would be fitted inside
the lower door to prevent the material falling out while drying or hot air may be
applied at the lower door.
The exit of the vapour in drying may be assisted by forming a chamber over the
top and connecting with a shaft or exhaust fan to the outer air or furnace to
consume the foul vapours.
Where required it is proposed to fix a perforated ring inside the top to form a
washer in which a disinfectant may be used.
A perforated coil is fixed inside at the bottom to distribute the steam where a
false bottom is not used.
When the material cannot be charged and withdrawn by the existing doors it is
enclosed in a cage and let down by a large door at the top.
For materials requiring agitation a shaft is passed through carrying arms from
top to bottom and both charging and drawing doors are placed at the side.
And in order that my said invention may be fully understood I will describe the
same with reference to the accompanying sheet of drawing in which :-
с
a shews the exhaust flue in which may be placed an exhaust fan to carry away
all foul vapours, the steam main c the perforated steam coil d the disinfecting coil
(if same is wanted) e the discharge pipe for fat water &c., f steam jacket
g, h, i respectively represent steam inlet, outlet and condense for samej steam blow
off from digester, & inside lining (perforated) / false perforated bottom for same
m feeding manhole » discharge manhole, o safety valve p cover plate to prevent the
contents when shot in from falling between the outer shell q. and the inner
casing k. 7, the outer shell shews line where digester would go into a chamber if
required.
The action is as follows:-
?'
The materials (bones for example) are placed in the digester through the
manhole m and the cover screwed down, the steam then being turned on enters
through the pipe b. and permeates the mass in digester by passing through the
perforations in the lining k and false bottom the foul vapours may be exhausted
by means of an exhaust fan fitted in the flue a. When it is desired to discharge
the contents the steam is first blown off the cover of both manholes removed. And
when drying is required and for the removal of any foul fumes the exhaust fan in
the flue a is started and when dry the contents of digester are withdrawn through
the manhole n and the liquid products by the discharge pipe e.
When it is desired to disinfect cloths and bedding and other articles these are
put into a cage and lowered into the digester and a disinfecting material is
injecting through the perforated coil d. Should the digester be required for
drying purposes the steam is injected by the steam inlet y and passes out through
the outlet the condensed steam being withdrawn by means of pipe i.
This digester is applicable for drying washing and disinfecting various articles.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In a digester the inside lining forming space for the distribution of heat,
water, or substances exuding and the passage of steam and air in drying.
2. In a digester the steam jacket forming a combined heater and dryer without
removing the materials.
;.
3. In a digester the arrangement of exhausting chamber to take away the
vapours substantially-as-set forth.

page_text: 4. In a digester the combination of washer, digester, dryer and disinfecting.
apparatus either open or closed with or without free steam, water, or other liquid
inside.
5. Digesters constructed substantially as and for the purposes set forth.
Dated this 27th day of December 1x4x
vecember
BROWNE & Co.,
9, Warwick Court, W.C., Agents for Applicant.