Leather manufactures – Machines – Fluid-treating apparatus
Patent
1978-09-15
1980-04-01
Lawson, Patrick D.
Leather manufactures
Machines
Fluid-treating apparatus
C14C 100
Patent
active
041955013
ABSTRACT:
An apparatus for tanning skins in a rapid and efficient manner includes a closed tanning tank and a plurality of storage tanks for storing the various liquids employed in tanning skins. The skins to be tanned are hung in the tanning tank. An air tight door is provided in the tanning tank for loading and unloading the skins. The tanning tank also has an inlet/outlet pipe for filling and emptying the tanning tank, which pipe is connected through a valve to an elevation pump. A respiration pipe having means for producing a gas which is chemically inert to tanning liquids is also provided on a tanning tank. Each of the storage tanks has an outlet pipe with a valve for controlling the flow of liquid therethrough which is connected to the elevation pump. Some of the storage tanks are airtight and have outgoing pipes connected to an outgoing pipe on the tanning tank to permit gases to flow between each of those storage tanks and the tanning tank. Other devices which may be operably coupled to the apparatus include an internal stirring system, an internal heating system and a dissolution tank. Also, a plurality of tanning tanks may be provided.
REFERENCES:
patent: 538911 (1895-05-01), Harrison
patent: 659077 (1900-10-01), Lester
patent: 2277404 (1942-03-01), Kannell
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