Method of and Apparatus for Perforating or Cutting Holes in Corrugated Materials.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Method of and Apparatus for Perforating or Cutting Holes in
Corrugated Materials.
I, HENRY WILLIAM HEADLAND, of The Firs, High Road, Leyton, in the
County of Essex, Electrical Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention relates to a method of and apparatus for perforating or cutting
holes in corrugated materials.
Hitherto it has been usual to punch or drill holes in most kinds of sheet
materials but according to my invention I make the holes or perforations by
means of a number of revolving cutters or saws. The cutters are either mounted
on a shaft or shafts under a table and each or all project a certain distance
through a slot or slots or the cutters may be mounted above the table or they
may be mounted under the table and above the table. A sheet of the corrugated
material to be perforated or provided with holes is passed over the table and in
passing thereover the revolving cutters or saws make the holes in rows. The
table is provided with a guide or guides to cause the sheet to travel straight,
diagonally or otherwise.
Or instead of causing the sheet to travel the whole time it may be caused to
be perforated at intervals by applying pressure to the sheet against the cutters
which are caused to revolve and make a row or rows of holes in the corrugated
sheet. When one set of holes or slots are made the pressure is removed, the
sheet is moved the required distance, the cutters are caused to revolve and
pressure is applied for the purpose of effecting the perforating or slotting
operation.
Amongst other uses, material such as vulcanite xylonite or glass thus perfo-
rated is very suitable for separating the elements of electric batteries.
Dated this Eighth day of July 1898
JENSEN & SON,
77, Chancery Lane, London, W.C.,
Patent Agents.
Method of and Apparatus for Perforating or Cutting Holes in
Corrugated Materials.
I, HENRY WILLIAM HEADLAND, of The Firs, High Road, Leyton, in the
County of Essex, Electrical Engineer, do hereby declare the nature of this

page_text: invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
-
My invention relates to a method of and apparatus for perforating or cutting
holes in corrugated material, and is of great and especial value in the produc
tion of slot holes in thin corrugated sheets of vulcanite glass and equivalent
hard insulating material and in celluloid and the like used for separating the
elements of electric batteries.
Hitherto it has been usual to punch or drill holes in most kinds of sheet
material, but as regards the thin corrugated sheets of vulcanite it has not been
possible to form holes or slots in them after the sheet has been vulcanized and
consequently rendered hard and comparatively brittle, except by a slow drilling
process; the holes would therefore have to be punched before the sheet was corru-
gated and vulcanized but the process would be slow and require expensive
apparatus.
By my invention I am able to form holes or slots in hard corrugated sheet
material such as vulcanite and the like or glass and in celluloid and the like
in an expeditious cheap and neat manner and to form the holes straight across
the corrugations or slanting across the corrugations, or slanting in opposite
directions so as to form holes of cross shape; moreover such holes may be made
vertically through the sheet or in a slanting direction to the general surface
thereof. For the purpose of producing in a corrugated sheet A of vulcanite or
other hard material such as shewn in the plan view Fig. 1 and sectional eleva-
tion Fig. 2 holes such as A' I use a tool Fig. 3 consisting mainly of a quickly
rotated spindle B (or a number of such, all geared or driven to rotate simultane-
ously) and a number of saws emery wheels or milling tools C fixed thereon. The
sheet A being brought down against the saws or cutters or the latter being
raised against the sheet A or vice versa the sheet being brought up against the
cutters, or the latter being brought down upon the sheet, the perforations are
formed in an exceedingly quick and perfect manner. When the perforations
have been made through the ridges on one side the sheet is reversed and the
perforations made through the ridges on the other side.
Fig. 4 shows a sheet having rows of parallel slanting holes A².
Fig. 5 shows a sheet having cross shaped holes A³ formed by making slanting
holes first in one direction and then in the opposite direction or crosswise.
Fig. 6 shows a sheet placed in a slanting direction to a horizontal spindle B
upon which latter is mounted a series of saws or milling tools Chaving different
diameters in order to conform to the slanting position of the sheet. The sheet
after having been thus perforated from one side is reversed and perforated from
the other side. Such sheets have the important advantage as applied to battery
cells that any sulphated parts will pass the slanting slots to the cavity or corru-
gation, on the opposite side or away from the plate that they dropped from.
Instead of rotating circular saws or milling tools I may employ quickly
reciprocated files or saws.
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:
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1. The perforating the ridges of corrugated sheets of vulcanite and other hard
materials by means of quickly rotated circular saws or milling tools or by means
of quickly reciprocated files or saws.
2. As a new article of manufacture a corrugated sheet of vulcanite or other
hard insulating material provided with transverse or slanting perforations of the
ridges after being corrugated.
3. As a new article of manufacture a corrugated sheet of vulcanite or other
hard insulating material provided on the ridges with perforations of any of the
forms shewn in Figs. 1, 2, 4, 5, 6.

page_text: 4. The application and use of the perforating tool Fig. 3 for the purpose set
forth.
5. The application and use of the perforating tool Fig. 6 for the purpose set