Improvements relating to the Production of Albumen and Raw Materials for Certain Purposes, and in Apparatus or Appliances in connection therewith.
Year: 1895

page_text: Date of Application, 17th July, 1895-Accepted, 17th Aug., 1895
COMPLETE SPECIFICATION.
Improvements relating to the Production of Albumen and Raw
Materials for Certain Purposes, and in Apparatus or Appliances
in connection therewith.
I, SIEGBERT FROHWEIN of 43, Hohestrasse, Köln-on-the-Rhine, in the Empire
of Germany, Merchant 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 for its object to divide up into its constituents, blood, in such
a way that there are obtained pure albumen and a raw product which will be of
value in the manufacture of hard rubber.
This object is attained by cutting up the cakes of blood and allowing the liquid
portion to thoroughly drip off, the remaining portion of the cakes is baked, and in
the form of meal is employed in the manufacture of hard rubber, the liquid drippings
are allowed to settle down for a lengthy time and are separated into two layers, the
albumen.
upper layer being drawn off and is of value as a pure
The invention would be best carried out practically as follows:-
The blood coming from the slaughtered animals is directly taken up in pans not
exceeding ten centimetres in height and of suitable shape, it remains in these pans
till it has congealed so that it forms into cakes. This blood-cake after it has been
cooled is cut up by means of a small knife into small pieces and is put into a sieve.
The wet matters clinging to the blood drop through holes in the sieve into a
chest standing thereunder. After the blood-cake has entirely finished dripping the
sieve is removed, and the damp substance in the chest, which contains albumen and
colouring matters, is allowed to stand still for some time. The colouring matter
In order to
and the albumen are then separated completely from one another.
separate the two layers in a simple manner from one another there is a hole
provided in the bottom of the chest wherein a small lead or tin tube can be pushed
up and down. It will be only necessary to slide up the tube in the opening in the
chest till it stands above the layer of colouring matter next to the chest-bottom,
whereupon the albumen is drawn off in a pure state from the tube.
The annexed sheets of drawings shows such an appliance or apparatus, Fig. 1
being a vertical section, and Fig. 2 plan views thereof.
The filter consists of the edges or sides a and the perforated bottom b. The
edge c of the chest is turned inward and its shape corresponds with the edges of
the filter. There is a hole in the bottom of the chest wherein there is a tube e
which can slide up and down. The upper portion of the tube is bent rectangularly
so that liquid dripping or trickling through the sieve bottom cannot pass into the
tube. The liquid and bright yellow albumenous matter is dried to thin discs upon
thin metal plates by means of heat. The rest of the blood, remaining after the
drainage of the blood-cake, is dried in ovens at about 80° Centigrade, it is then
made into meal and the dark meal employed in the manufacture of hard rubber.
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. A process for the production from blood of albumen and raw matters for use
in the manufacture of hard rubber, colouring materials, and manures, consisting in
the blood-cake heing cut up and well drained, in the remainder being baked and

page_text: applied in a mealed state for the production of hard rubber, whilst the drained
liquid is separated into two layers by allowing it to stand for a lengthy time, the
upper or drawn off layer being employed as pure albumen.
2. For carrying out the process stated in Claim 1 a sieving apparatus or
appliance in the bottom of which a tube (e) can slide up and down and the turned
back edge of which bears a correspondingly shaped sieve.
Dated this Sixteenth day of July 1895.
W. P. THOMPSON & Co.,
Agents for the Applicant.