An Improved Cutter for Dressing Slates, Tiles, and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
An Improved Cutter for Dressing Slates, Tiles, and the like.
THOMAS ADAMSON, 37, Hall Street, Southport, Lancashire, do hereby declare
the nature of this invention to be as follows:-
A cutter, or knife constructed on the guilatine principle, with lever action,
The cutter, or knife, to be attached to adjustable gear in such a manner as to
allow it to be set at such distance from cutting bed as the thickness of slate,
tile, &c. require.
The bed is channelled paralell with the knife in such a way as to cause two
projecting surfaces upon which the slate tile, &c., having an irregular surface,
will lay flat and firm.
T
P
1000
An Improved Cutter for Dressing Slates, Tiles, and the like.
I. THOMAS ADAMSON, of 37, Hall Street, Southport, Lancashire, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:-
My invention consists of a cutter or knife constructed on the guillotine prin-
ciple with lever action and attached to adjustable gear in such a manner as to
allow it to be set at such a distance from a cutting bed as the thickness of slate
tile, etc., requires. The bed is channellel parallel with the knife in such a way
as to provide two projecting surfaces upon which a slate, tile, etc., having an
irregular surface may lay flat and firm.
To make my invention clear I have hereunto annexed a sheet of drawings
illustrating the details of my invention as applied for cutting slates, and as
adapted more particularly for portable use on a roof.
Fig. 1 represents a side elevation of my improved cutting apparatus with the
cutter raised and in the act of trimming a slate. Fig. 2 represents a plan, and
Fig. 3 a transverse section on line ab.
Fig. 4 represents a perspective view of the apparatus from the side at which
the operator holds the slate and works the knife.
According to my invention (A) is a lever, formed or provided with a cutting
edge (B), and mounted at one end upon an adjustable stud or bolt (C) fitted to
a cutting edge (B) and mounted at one end upon an adjustable stud or bolt (C)
fitted to a cutting bed (D) as illustrated. The said lever terminates in a
handle (A) and by such handle is capable of being moved radially upon the
stud (C). The bed (D) consists as shewn of two parallel sides joined by a series
Pin 071

page_text: of cross-ribs, some (or all) of which are cut away or channelled in order to
allow of a perfect: seating for any irregular shaped object placed' upon the top
edges of the two sides.
The use of the apparatus is as follows:-A slate, tile or the like to be cut
or trimmed is placed upon the bed (D). The lever (A) is then raised to its highest
point, or to such a height as will allow the slate to come under the cutting
edge (B), as shewn by dotted lines in Fig. 4. The slate being held firm by
hand the lever (A) is then lowered, and thereby caused to cut off the required
portion of slate in a perfectly straight line.
For cutting different thicknesses it is necessary that the cutting edge (13) should
lie a distance from the bed equal approximately to the thickness of the slate or
other object to-be cut, hence provide the bolt or stud (C) with a screw thread
screwing through bosses (E) on the bed (D), a flange or boss (E¹) a collar or
nut (1), (between which I clamp the eye of the lever (A) and a wing nut (G),
by which, after the bolt (C) has been screwed in or out of the bed to regulate
the distance between the knife edge and bed, such bolt is tightened up and secured
in a fixed position. The use of the bolt and nuts in this manner also serve to
give lateral rigidity to the lever in cutting a slate.
To ensure of its firm support the bed is formed with two webs (H) one of which
also forms a rest for the lever (A) when not in use, and to allow of the apparatus
being secured say to a rafter, cross-beam or other like object on a roof it may
have a hook or claw (I).
To assist in holding the slate at the proper angle upon the bed (D) and under
the knife (B) I may provide a set of adjustable fences, as shewn in dotted lines
in Fig. 2, against which the slate may abut, and so lie square (or otherwise) to
the knife.
To further facilitate the proper cutting or trimming of a slate and to allow
of the slates being cut to a regular and definite size I may mark or provide
one of the inner faces of the cutter bed with a measure, as shewn in Fig. 4 which
being directly in sight of the operator when fixing the slate upon the bed will
enable him to mark or measure off the size of slate required, or the amount to
be cut.
The cutting edge (B) may be part of the lever itself, but I prefer an attachable
renewable blade, as shewn in Fig. 4, and other and like variations in detail may
be effected without departing from my invention. For securing to a bench I
provide the bed (D) with lugs (J) having screw holes (K).
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what'
I 'claim is
1: In apparatus for cutting slates, tiles and the like, a cutter bed composed
of two parallel sides and a series of channelled cross-pieces, in combination with
a lever carrying or formed with a knife or guillotine and mounted upon a stud
or bolt on the said cutter bed, substantially as herein set forth.
2: In apparatus for cutting slates, tiles and the like, a lever carrying or
formed with a guillotine and mounted upon an adjustable stud or bolt, as set
forth.
3: The combination and arrangement of parts herein described and illustrated
on the accompanying drawings, as and for the purposes set forth.
Dated this 5th day of December
Dated
THIS JU Qay
Dect DCI
THOMAS ADAMSON.
By John G. Wilson & Co., Fels. I.P.A.
55, Market Street, Manchester,
Agents.
THOMAS ADAMSON.
By John G. Wilson & Co., Fels. I.P.A.
55, Market Street, Manchester,
Agents.