Improvements in or relating to Paper Making Machines.
Year: 1896

page_text: Date of Application, 21st Mar., 1896-Accepted, 25th Apr., 1896
[Communicated from abroad by CHRISTIAN CHRISTOPHERSEN, of Dronningens
Gade 23, Christiania, Consul General, and OLAF WAHLBERG, of Ranheim,
near Trondhjen, Engineer, both in the Kingdom of Norway.]
Improvements in or relating to Paper Making Machines.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent.
Agents, 45 Southampton Buildings, in the County of Middlesex, 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 paper making machines of the kind in which_an
auxiliary felt, is used in connection with the "first press" of the machine. The-
said felt is especially used when making very thin paper and I have found by
experience, that the felt is liable to take up fibres from the paper, such fibres
gathering on the felt, so that after a time the result will be, that the paper will be
spoiled or will be of inferior quality for the reason, that the fibres on the felt make
the paper rough and uneven thus causing great annoyance.
My invention consists in means whereby the said auxiliary felt is constantly kept
clean and free from such fibres, said means consisting in a scraper in combination.
with a pipe, sprinkling water on the felt close to the said scraper.
In the accompanying drawing I have shown one form or construction of this.
felt-cleaner, it being understood however; that the construction is only shown as.
an example, other constructions being also possible according to my invention.
Figure 1 shows a side elevation of part of a paper making machine to which my
invention is applied and
Figures 2, 3 and 4 are detail views.
A indicates the auxiliary and B is one of its guide rolls. On the top of the
frame are bolted or otherwise secured on each side of the machine guides or
brackets E provided with screws F, in which the beam C is hung. This beam
may be of wood, and on its lower edge is secured a strip of flat iron or the like D-
in contact with the felt A and acting on the same as a scraper. In front of the
beam is placed a pipe G, having perforations on its underside, through which water
is caused to flow over the felt just in front of the scraper. In this way the fibres
are loosened and scraped off, so that they will flow away with the water and the
felt will be constantly kept completely clean. The screws F, serve to adjust the-
scraper accurately in relation to the felt.
I may of course mount the scraper in other ways on the machine and combine.
the same with other means of adjustment without departing from the nature of my
invention.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondents, I declare that what I claim is :-
1. In a paper making machine the combination with the auxiliary felt of means.
for keeping the same free from deposits of fibres or the like consisting essentially
of a scraper and means for sprinkling or flooding water. on the felt in front of the
Baid scraper.

page_text: 2. In a paper making machine a cleaner for keeping the auxiliary felt free from
deposits consisting in a scraper vertically adjustable by means of screws or the like
and being mounted in guides secured to the frame.
3. A cleaning apparatus for the felts of paper making machines substantially as
shown and described.
Dated this 21st day of March 1896.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.