IMPROVEMENTS IN WRINGING AND MANGLING MACHINES
Year: 1884

page_text: I EDWARD KENWORTHY DUTTON of Oakfield Cheadle Hulme in the County of
Chester Civil Engineer do hereby declare the nature of my said invention for
IMPROVEMENTS IN WRINGING AND MANGLING MACHINES to be as follows:-
My Invention relates to apparatus for which Letters Patent bearing date the
third day of March in the year 1877 and numbered 861 have been granted to
George Ashworth and Elijah Ashworth. The Specification of the said Letters
Patent described a form of mangle wherein the yielding roller was carried by levers
the fulcra of the levers being co-incident with the pitch line of the actuating
gearing. In the mangle as constructed the rollers did not move in the ordinary
direction as compared with the hand wheel and in the said Specification an
arrangement for obviating this defect was described but in such arrangement the
lower roller was made to be the yielding roller and the entire arrangement was open
to several objections. The object of my Invention is to remedy the defects of the
said formerly patented machines. I make the upper roller the yielding roller and
fix a spur wheel on the shaft of the same. On the shaft of the lower roller I fix an
internal wheel. The bearings of the upper roller are mounted on the upper sides of
levers which turn upon fulcra which are about co-incident with the meeting point
of the pitch circles of the wheel and pinion. Projections on the side of a jaw
formed on the upper part of each lever rest in the projections on the bearings. The
actuating shaft is below the level of the top of the lower roller so that the said
shaft passes below the table or board at the back of the machine. This raises the
level of the rollers thus giving room for longer springs. The bearings are more
accessible and there is not a cross bar above the table or feeding board.

page_text: I EDWARD KENWORTHY DUTTON of Oakfield, Cheadle Hulme, in the County of
Chester, Civil Engineer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN WRINGING AND MANGLING MACHINES" and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement and accompanying drawing :—
My Invention relates to apparatus for which Letters Patent bearing date the
third day of March in the year 1877 and numbered 861 have been granted to
George Ashworth and Elijah Ashworth. The Specification of the said Letters
Patent described a form of mangle wherein the yielding roller was carried by levers
the fulcra of the levers being co-incident with the pitch line of the actuating
gearing. In the mangle as constructed the rollers did not move in the ordinary
direction as compared with the hand wheel and in the said specification an
arrangement for obviating this defect was described but in such an arrangement
the lower roller was made to be the yielding roller and the entire arrangement was
open to several objections.
The
The object of my invention is to remedy the defects of the said formerly patented
machine. I make the upper roller the yielding roller and fix a spur wheel on the
shaft of the same. On the shaft of the lower roller I fix an internal wheel.
bearings of the upper roller are mounted on the upper sides of levers which turn
upon fulcra which are about co-incident with. the meeting point of the pitch circles
of the wheel and pinion. Projections on the side of a jaw formed in the upper
part of each lever rest in the projections on the bearings. The actuating shaft is
below the level of the top of the lower roller so that the said shaft passes below the
table or board at the back of the machine. This raises the level of the rollers thus
giving room for longer springs. The bearings are more accessible and there is not
a cross bar above the table or feeding board.
In order that my Invention may be fully understood I have attached hereunto a
drawing representing so much of the improved mangle as is necessary to the
illustration of my Invention.
In the said drawing a, b, are the two rollers represented in section c is the
actuating shaft also in section and d is a portion of the framing at one end of the
machine. On one end of the bottom roller shaft is fixed a spur wheel e which is
formed with internal teeth and on the shaft of the top roller is fixed a spur wheel
having external teeth that is to say an ordinary spur wheel. As these two wheels
are situated at opposite ends of the machine they would not both appear in the
drawing but the external spur wheel is represented by the dotted indications at f.
A pinion g at one end of the shaft c gears with the wheel e and a similar pinion at
the other end of the same shaft gears with the wheel f. In the example both these
pinions have the same diameter on the pitch line and both the wheels e and falso
have the same diameter. It will thus be seen that when the shaft c is rotated the
two rollers will revolve in unison in the indicated direction. The bearings of the
top roller are mounted in two levers one at each end of the machine. One of these
lovers is represented by h. The upper part of the lever is formed with a recess in
which the bearing enters and with projections h, h³, which rest in hollows in the
lugs on the bearings as in the aforesaid machine of Ashworth's the difference being
that in my machine the lever passes below the bearing instead of above it. The
fulcruin of the lever is at & below the board the point being at about the point
of imaginary contact of the pitch lines of the wheel and the pinion which actuates

page_text: the same.
The dotted lines m indicate the range of movement which the upper
roller may have when moving upward and away from the lower roller and the
dotted circle n indicates the pitch line of the wheel fin the position assumed when
the roller is raised. This movement of the upper roller does not affect the proper
gearing of the wheel and pinion to any practical extent.
The bearings for the shaft c are preferably in one piece with a bar which helps
to connect together the two end framings of the machine as in the case of
Ashworth's machine but I do not confine myself to this. It will be understood
that the two levers h are loaded by means of springs or weights. A link or rod
connecting the lever with the load appears at o. An important advantage is gained
by bringing the connecting bar and the shaft c below the board l.
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. The rollers a and b actuated by means of a shaft on which are two pinions
one gearing with an internal spur wheel on the bottom roller shaft and the other
with an external spur wheel on the top roller shaft substantially as and for the
purposes set forth.
2. The two levers as at h having their fulcra below the feeding and receiving
board at the points of meeting of the pitch lines substantially as and for the
purpose set forth and indicated.
3. The combination of parts arranged and acting substantially as and for the
purposes set forth and indicated.
Dated this seventh day of January 1885.