Mangling Machines.
Year: 1888

page_text: Date of Application, 17th May, 1838
Specification Accepted, 22nd June, 1383
Mangling Machines.
We ROBERT SMITH and SHEM PAGET, both of Parker Street Iron Works, Keighley,
in the county of York, machine makers, 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 of this invention is to provide roller bearings for the shafts or spindles
of washing, wringing and mangling machines, which shall be simple in construction
and design; efficient in reducing the frictional resistances of such shafts and
consequently the power required to actuate the machines; inexpensive in manufacture ;
and easily and readily applied and fixed in their places.
In carrying out our invention we employ for each bearing any convenient number
of parallel cylindrical rollers, of sufficient diameter to entirely fill the space between
the race and the shaft journal or neck, and to touch one another all round; and
instead of providing them with reduced bearing pivots or necks working in carrying
rings or washers as is usually done we make their ends perfectly flat.
In the accompanying sheet of illustrative drawings:
Fig. 1 is a transverse section of one form of roller bearing constructed according to
our invention, Fig. 2 is a section of the same on a plane perpendicular to the axis
of the shaft and Fig. 3 is a side elevation of the same.
Figs 4 and 5 are sections of a modified arrangement of that shewn in Figs. 1, 2
and 3 on planes respectively parallel with and perpendicular to the axis of the shaft.
Fig. 6 is a section on a plane parallel to the axis of the shaft of a bearing similar to
that shewn in Figs. 4 and 5, but so arranged that it may be applied to square shafts
without necessitating the turning of their ends.
A containing box a of any convenient size for fitting into the frame of the machine
is cored or bored out through the greater part of its length to form a race for the
rollers c to run on, and terminating at its outside end with a shoulder or reduced
part d against which the flat ends of the rollers c work, as clearly shewn.

page_text: The back or reverse end of the containing box is formed of a separate plate e secured
to the main part a of the box by screws f, and forms a shoulder similar to d for the
other ends of the rollers c to work against.
It will readily be seen that in consequence of the flat ends of the rollers working
against the flat, collars or shoulders at the ends of the race, any tendency on the part
of the rollers to take up a position oblique to the plane of the axis of the shaft will be
obviated; and by constructing the containing box in two parts the rollers may be
readily inserted in their places, while any repairing operations will be greatly
facilitated.
In the modified arrangement shown in Figs. 4 and 5, instead of the rollers e running
in a race with end shoulders, and forming part of a containing box, the race g is plain,
and a part of the machine frame, the rollers being guided by two end discs / secured
to the shaft by pins or otherwise and provided with lips for restraining the
rollers c in an outward direction, so that the bearing may be left open except in the
direction of pressure as clearly shewn.
In Fig. 6 the discs are secured.to a bush or sleeve k of cylindrical form externally,
and provided with a square hole for fitting on a square shaft as clearly shewn. By
this means the necessity for turning down the ends of the shafts is obviated.
our said
Having now particularly described and ascertained the nature of
invention and in what manner the same is to be performed we declare that what
we claim is :―
1. The construction of roller bearings for the shafts of washing, wringing and
mangling machines having rollers inserted between the shaft and a race fixed in
the frame of the machine, the flat ends of the said rollers working against flat
shoulders at the ends of the roller race, so as to maintain the axes of the rollers and
shaft parallel, substantially as described with reference to Figs. 1, 2 and 3 of the
Drawings.
2. The construction of the modified form of roller bearing for the shafts of washing,
wringing and mangling machines shown in Figs. 4 and 5, wherein the ends of the
rollers bear against and are guided by the two end dises secured to the shaft and
maintained in their positions against the said shaft by means of lips formed on the said
discs substantially as described.
3. The construction of the modified form of roller bearing for the shafts of
washing, wringing and mangling machines shewn in Fig. 6, in which the rollers bear
against a bush or sleeve having a square hole for fitting on a square shaft so as to
obviate the turning of the ends of the shafts substantially as described.
Dated this 17th day of May 1888.
WHEATLEY & MACKENZIE,
156, Strand, W.C.,
Agents.