Improvements in Roller-bearings for Revolving Drums and the like.
Year: 1899

page_text: Date of Application, 16th June, 1899-Accepted, 5th Aug., 1899
COMPLETE SPECIFICATION (AMENDED):
Improvements in Roller-bearings for Revolving Drums and the like.
I, JOHANN LUDWIG HERMAN HINZ, of Liebigstrasse, 3, Giessen, Germany,
Director of Manufactory do hereby declare the nature of this invention and in
what manner the same is to be performed to be particularly described, and ascer-
tained in and by the following statement: —
This invention relates to roller-bearings for revolving drums and the like in
which means are provided whereby two or more rollers are caused to follow every
movement of the drum running on them and to receive always a quite deter-
minate and accurately distributed pressure This is attained by making the
motion of one roller of a pair of rollers-dependent on that of the other roller of
the same pair, or one pair of rollers dependent on that of any other pair of rollers."
For this purpose hydraulic, lever, or spring power may be employed.
Examples of the application of these are given in the accompanying drawings,
in which Figs. 1, 2, 3, and show bearings whose rollers are supported by
hydraulic pressure, whilst Figs. 5 and 6 show bearings having rollers supported by
levers and by springs respectively.
Revolving drums for drying and similar purposes becomes warped owing to the
unequal temperatures to which they are generally exposed, and, with ordinary
bearings, they consequently knock as they revolve, so that the use of roller-
bearings that compensate for the largest as well as the smallest rotational defects
and thereby always support the revolving drum uniformly, is very advantageous.
In a foundation a are fastened sockets which act as guides for plungers d
which carry the rollers c. The packing of the plungers d is effected by means of
glands e. The lower ends of the sockets are connected together by a pipe f, to
which the pressure water is conveyed by another pipe g. In the example shown
in Figs. 1 and 2, the pipe g is arranged longitudinally in relation to the drum t
and can feed several pairs of rollers at the same time; in this case each individual
roller is directly influenced by the water, whilst in the example shown in Figs. 3
and 4 the action upon the rollers is indirect. Here the rollers are mounted on
the equal arms of a beam i, which is mounted to rock in the fork of the plunger d
which is guided in the socket b. The connecting pipe f of the two sockets b is,
in the last mentioned example, arranged longitudinally in relation to the drum,
whilst the supply of the said pipe is effected by means of a lateral pipe g.
Fig. 5 represents an example in which levers h are employed, each of which is
secured, so that it can revolve, on a lateral gudgeon of the beam carrying the
rollers c, and each of which is in addition supported, at a suitable distance from
its point of engagement, by means of a knife-edge 7 or the like. The levers h
carry weights m which are adjustable thereon, in order to support the rollers c

page_text: sufficiently against the weight of the drum: By means of this arrangement also,
the motion of one roller is made dependent upon that of the other roller and the
two rollers are always subjected, to a uniformly distributed pressure, the weights m
being placed at equal distances from the fulera of the levers h.
In the example shown in Fig. 6, springs n are employed. In this case the two
rollers C, .which are mounted on a beam i itself mounted on a guide d, are sup-
ported by a common spring n. Each roller may, however, be acted on by a special
spring the mounting of the rollers would then be similar to that shown in Fig. 1.
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:
Y
1. A roller-bearing for revolving drums or the like, in which two or more
rollers c follow every movement of the drum or the like running on them and
always receive a quite determinate pressure Jaccurately distributed amongst the
rollers, which are mounted either singly or in pairs on hydraulio plungers con-
nected to a common water pressure supply substantially as described:
2. A roller-bearing according to the preceding claim, in which the rollers c are
mounted either separately, or in pairs carried by beams i, on plungers d that
slide, in conformity with the irregular rotary motion of the drum't, in sockets..
which communicate with one another through pipes 'f, so that the fluid, which is
fed into the latter under pressure, causes a rise of one roller or pair of rollers
simultaneously with a lowering of the other roller or the other pair of rollers.
3. A roller bearing according to Claim-1, in which the rollers, which are mounted
in-pairs-on-beams-1;-are-eaused to-afford-the-revolving-drum-t-the-support necessary
for-the-time being, by means-of-two-armed -levers--and weights-m-that-ean--be-slid
thereon.
4. A-roller bearing-according to-Claim-1;-in-which-the rollers which are mounted
either-singly-or-in-pairs, ure-supported by-springs-n.
3. 5. Roller-bearings for revolving drums or the like, constructed, arranged,
and operating as hereinbefore described with reference to and shown respectively
in Figs. 1 and 2, in Figs. 3 and 4, in Fig.-;-and or in Fig. 6, of the accompanying
drawings
Dated this 16th day of June 1899
"
F. WISE HOWORTH,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.