AN APPLIANCE FOR KEEPING CLEAN THE SURFACES OF ROLLERS USED IN WOOD PLANEING MACHINERY
Year: 1884

page_text: We JAMES DENT of 17 Rowley St, and JOSEPH HOLT of 18 Bankhouse Street
Burnley in the County of Lancaster, Machinests do hereby declare the nature of
our said invention for "AN APPLIANCE FOR KEEPING CLEAN THE SURFACES OF
ROLLERS USED IN WOOD PLANEING MACHINERY" to be as follows:-
The object of this invention is to ensure a clean and even surface of the rollers
of Wood planeing machinery.
These rollers, whilst revolving and bearing against the timber in process of
planeing, have a tendency to collect and press upon their surfaces, shavings or like
woody matter, which from constant pressure, becomes very hard, and being raised
above the surface of the rollers, are capable of indenting themselves into the planed
surface of the timber after leaving leaving the cutters.
Our invention consists essentially in the application of a scraper or scrapers
which may be mounted upon centers or upon springs, so as to bear against the
rollers, and remove therefrom, any woody matter which may have a tendency to
adhere thereto. The scraper may be also adjustable and set at any desired angle,
so as to constantly grind the point in contact with the rollers, to the particular
shape required.
THOMAS RICHMOND,
Agent for the Applicants.

page_text: வர் கூட A
following statement:——
This invention relates more particularly to those rollers, the-surfaces of which
are turned plain and smooth, so as to feed forward the timber on their smooth
surfaces, without injuring or marking the planed surface of the timber.
These rollers, whilst revolving and bearing against the timber during the process
of planing, have a tendancy to collect upon their surfaces, dust, shavings, and other
matter, which from repeated pressure, become very hard, and being-raised above
-the-surface of the rollers, are capable of indenting themselves into the planed
surface of the timber after-leaving-the_cutter block.
This invention consists essentiall in the application-of-a-scraper or scrapers,
which may be mounted in bearings or upon springs, so as to bear against-the-
rollers and remove therefrom any woody matter or rosin, which may have a
tendancy to adhere thereto.
These scrapers may be adjustable and set to any desired angle as will cause the
rollers to grind that portion of the scraper in contact with the said rollers to the
particular shape required.
And in order that our invention may be properly understood and readily carried
into effect, we have hereunto attached the accompanying drawing representing a
sectional elevation of a Wood Planing Machine with our improved apparatus
applied thereto.
A, is the piller or framework of the machine; B, the table, on which the timber
to be planed is placed; C, is a corrugated or ridged feed roller, which revolving,
seizes the timber and draws it forward under the cutter block D, and forward
under the smooth delivery roller E.
Two other sinooth rollers F, and G, are usually used, and revolve in bearings
beneath the table, through and above which they slightly project to relieve the
timber from frictional contact with the surface of the table, which would otherwise
impart a considerable amount of friction or drag to the timber and require an
unnecessary amount of power to force it forward through the machine. The parts
above enumerated may be constructed in the ordinary mannor.
Our invention is designed to remove shavings, dust, and rosin, which have a
tendancy to collect upon the surfaces of the rollers E, F, and G, and becoming hard
by pressure, indent themselves into the planed or finished surface of the timber.
In carrying out our invention, we employ a scraper H, or thin plate of steel, or
other metal, for each of the said rollers; the scraper is preferably secured between
metal plates or blocks I and J by a bolt or bolts K, which bind them firmly
together. The thin metal plate or scraper is made to project beyond the metal

page_text: blocks I and J, as little as is practicable, so that strength and stiffness is imparted
to the thin steel plate or scraper, which when worn, may be readily pushed forward
and readjusted. Side lugs or studs L may be cast or fixed to the block J and
mounted in bearings near the projecting end of the scraper K, so that weight
behind the axis or centre of the blocks, will cause the scraper or thin steel plate to
bear with sufficient pressure upon the roller against which it is in contact, as to
remove any matter which may have a tendancy to collect upon its surface; or if
desired the scraper may be mounted on springs for the like purpose.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is
A scraper or cleaner held in contact with the roller or rollers by a weighted
lever or spring substantially as described for the purposes specified.
Dated this 16th day of May 1885.
THOMAS RICHMOND,
Agent for the said James Dent
and Joseph Holt.
THOMAS RICHMOND,
Agent for the said James Dent
and Joseph Holt.