Improvements in Carpet Sweepers.
Year: 1898

page_text: Date of Application, 1st Feb., 1898-Accepted. 19th Mar., 1898
COMPLETE SPECIFICATION.
Improvements in Carpet Sweepers.
I, WALTER JOSEPH DREW, of Grand Rapids, in the County of Kent, and State of
Michigan, in the United States of America, Inventor, 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 :-
.
.
This invention relates to certain new and useful improvements in carpet sweepers, and
consists in the mechanism designed to prevent hairs, threads, and a similar material"..
from winding up or around the journal or pintle of the brush roller: The device is .
applicable to carpet sweepers having a stationary pintle supported by an elastic strip.
across the end of the sweeper, as shown in the drawings, and is also applicable to and
may be used in connection with an ordinary journal; that is, when the journal
revolves with the brush roller, as well as when used in connection with a stationary
pintle, said pintle extending into an opening in the end of the roller. In case of a
two wheeled sweeper the groove would extend into the end of the roller at one end
and at the other end into the pulley on the brush roller, or it may extend either into-
the pulley or into the brush roller itself. The object of this invention is to prevent
threads, ravelings, hairs, and the like from winding around the journal or pintle of
the brush roller, thereby obstructing the free motion of the roller. This object
accomplish by means of the mechanism illustrated in the accompanying drawing, in
which Fig. 1 shows an end view of a carpet sweeper provided with my invention.
Fig. 2 shows a sectional view on line a-a of Fig. 1, the left hand portion of Fig. 2
showing the brush roller and brush pulley in section, while the right hand portion
shows the brush pulley whole. Fig. 3 shows a brush roller, mostly in section, and
illustrating the device when the pintle is a journal revolving with the brush roller
itself.
Like letters refer to like parts throughout the several views.
A represents the case of the sweeper. C represents a band or strip across the end
of the sweeper which, in one form of my invention, is used to support the brush.
roller. Any other form of supporting the brush roller, however, may be used..
D represents a cap or guard designed to prevent the ravelings from engaging with
the pintle or journal of the brush roller. E represents a pulley on the brush roller
which, in the example of my invention shown in the drawings, is merely an
enlargement of the brush roller itself. An angular groove extends entirely around the
pulley E, and into this annular groove projects the periphery I of the cap or guard D.
The cap or guard D should project into the annular groove a sufficient distance to
prevent any threads or ravelings from passing between the cap and the end of the
brush roller or the end of the brush.pulley. The cap or guard D I prefer to make
of metal, cup-shaped, having its outer side inclined in such a manner that in case
any ravelings or threads should come in contact therewith they will be carried
outwardly instead of inwardly. It is not absolutely necessary that the periphery of
this cap or guard D should be continuous, although I prefer so to construct it. H,
in Fig. 2 shows a pintle rigid with or integral with the cap or guard D, and
projecting into an opening in the brush roller F, the brush roller F turning upon

page_text: the pintles H, H. This is my preferred form, but instead of using this form the
pintle H, as shown in Fig. 3 may be rigid with the brush roller F, having a
projection fitting into a journal box the raveling catcher or cap D. This form is
equally efficient in preventing ravelings from winding around the journal or pintle,
but is not as simple in construction as the form shown in Fig. 2, although I do not
limit my invention to that form. G represents the bristles. K, K represent driving
wheels, which may be of any suitable construction. When the cap or guard I) is
secured to the strip C, by pulling the cap and strip outward the brush roller is readily
released.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In a carpet sweeper, the combination of the brush roller provided with an
annular depression or groove, a suitable journal bearing, and a guard having its
periphery extending within the groove for the purpose of preventing threads and the
like from winding around the bearing substantially as described.
2. In combination with a brush roller provided with a groove as described, a guard
having its periphery extending into the groove, a suitable pintle or journal, a strip
as C, and suitable means for attaching the guard to the said strip, substantially as
.described.
Dated thin
FL1000
HERBERT HADDAN & Co.,
Agents to Applicant, 18, Buckingham Street, Strand, London.