Improvements in Apparatus for Burring and Cleaning Hairy and Woolly Skins and for Unhairing and Softening Skins.
Year: 1886

page_text: Date of Application, 24th Dec., 1886)
Complete Left, 26th Sept., 1887
Complete Accepted, 28th Oct., 1887
Improvements in Apparatus for Burring and Cleaning Hairy and
Woolly Skins and for Unhairing and Softening Skins.
I JOHN STRAITON of 292" Strand Road Bootle in the County of Lancaster, Engineer,
do hereby declare the nature of this invention to be as follows:-
The object is to improve and render more efficient machines for burring and
cleaning hairy or woolly skins for unhairing and striking or softening skins both in
respect of economical use of water and reduced liability to injure tender or damaged
skins.
The invention relates to the class of machines in which there is a rotating drum
fitted with knives or beaters and apparatus for holding the skins in contact with the
drum, and consists:―
First. In making the drum in segments, each segment having a complete set of
diagonal and transverse blades or beaters.
Second. In providing a nipping roller above the carrying rollers to prevent dirty
water from travelling back with the skins.
Third. In connecting the feed rollers to the water supply, so that water will be cut
off when there no skin between the said feed rollers.
Fourth. In employing rollers to retain the skins against the drums, and in obtaining
the desired pressure with adjustable springs or weights.
Fifth. In providing a linged trough below the drum fitted with a pressure piece
and lever by which the skins can be held against the drum when required.
Dated this 23rd day of December 1886.

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Burring and Cleaning Hairy and
Woolly Skins and for Unhairing and Softening Skins.
I JOHN STRAITON of No. 292ª Strand Road Bootle, in the County of Lancaster,
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 :-
The object is to improve and render more efficient Machines for burring and
cleaning hairy or wooly skins, for unhairing and striking or softening skins both in
respect of economical use of water and reduced liability to injure tender or damaged
skins.
'
The invention relates to the class of machines in which there is a rotating drum
fitted with knives or beaters and apparatus for holding the skins in contact with the
drum, and consists
First In making the drum in segments, each segment having a complete set of
diagonal and transverse blades or beaters.
Second-In providing a nipping roller above the carrying rollers to prevent dirty
water from travelling back with the skins.
Third In connecting the feed rollers to the water supply so that water will be cut
off when there is no skin between the said feed rollers.
Fourth In employing rollers to retain the skins against the drums and in obtaining
the desired pressure with adjustable springs or weights.
Fifth In providing a hinged trough below the drum fitted with a pressure piece
and lever by which the skins can be held against the drum when required.
7
DESCRIPTION OF THE DRAWINGS.
Figuro 1. is an elevation and Figure 2. a front view of apparatus under my
invention. Figure 3 is a view of a portion of a segment showing the diagonal and
transverse blades or beaters, 1 frame, 2 drum made in segments 3, each segment
having a complete set of diagonal blades or beaters 4 and transverse blades or beaters 5.
The segments are conveniently held in position by end hoops and bolts or set screws.
6 carrying and feed rollers for conveying the skins to and from the drum 2. 7 nipping
roller held in position by springs or weights 8., 9 Water supply pipes and nozzles,
10 Valve, 11 lever connecting the bearings of the nipping roller to the valve 10.
Instead of the lover 11. being connected to the bearings of the nipping roller it may
be connected to the bearings of the upper feed roller. 12 roller for retaining the
skins against the drum 2, 13 Springs for causing the roller 12 to exert the desired
pressure against the skins, 14 set screws for regulating the tension of the springs,
two or more rollers 12 may be used and weights may be employed instead of springs.

page_text: 15 trough hinged at 16 and provided with a lever arm 17 coupled to a treadle or
pressure piece 18. The trough serves to retain the water in contact with the skins
and also to press the skins against the drum when required.
'
The skins are carried and fed to and from the drum in the usual manner and the
necessary driving gear is provided-The transverse blades or beaters, may have a
straight upper edge, or they may be fluted or serrated.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is :-
First Making the drum of burring and unhairing apparatus in segments,
substantially as set forth.
Second In burring and unbairing apparatus, the combination of a nipping roller
with carrying rollers substantially in the manner and for the purpose set forth.
Third The combination in burring and unhairing apparatus of feed or nipping
rollers with the water supply valve substantially in the manner and for the purpose
set forth.
Fourth-The combination in burring and 'unhairing apparatus of retaining rollers
and drum substantially as set forth.
Fifth-In burring and unhairing apparatus a hinged trough combined with the
drum, substantially in the manner and for the purpose set forth.
Dated this 23rd day of September 1887.
JAMES JOHNSON,
Patent Office,
4, Clayton Square, Liverpool,
Agent.