IMPROVED MACHINERY FOR THE MANUFACTURE OF BAGS AND ENVELOPES MADE OF PAPER OR OTHER FIBROUS MATERIALS OR WOVEN OR TEXTILE FABRICS EITHER SEPARATELY OR COMBINED
Year: 1865

page_text: PROVISIONAL SPECIFICATION left by Henry Rankin at the Office of the
Commissioners of Patents, with his Petition, on the 22nd September
1865.
I, HENRY RANKIN, of 49, King William Street, in the City of London, do
hereby declare, the nature of the said Invention for "IMPROVED MACHINERY
FOR THE MANUFACTURE OF BAGS AND ENVELOPES MADE OF PAPER OR OTHER FIBROUS
MATERIALS OR WOVEN OR TEXTILE FABRICS EITHER SEPARATELY OR COMBINED," to
be as follows:-
This Invention consists in a novel and improved mode of combining
together mechanism so as to form a machine capable of manufacturing bags
and envelopes from paper or other fibrous materials or woven or textile fabrics
either separately or combined.
The following is an example of the construction of the machinery above
referred to. In a suitable framing I arrange and dispose the mechanism for
performing the following operations:-First, for doubling the paper; secondly,
for pasting the same along two of its sides; thirdly, for creasing or folding
the sides; and, lastly, for exerting pressure upon the folded pasted sides so as
to unite these parts firmly to the body of the bag. To effect the first
operation, namely, the "doubling," I employ two horizontal cylindrical rollers
of equal diameters, so adjusted as to allow the doubled paper to pass between
them by the action of a vibrating knife, which descending upon the flat piece

page_text: of paper of which each bag is to be made doubles the same up by pressing it
in the middle between the two aforesaid rollers; these rollers are provided
with endless travelling bands or webs for conducting the doubled paper
through the machine, the said paper in its transit being operated upon as
follows: After it has passed between the doubling rollers above mentioned
I spread near the edges of the paper, and at a distance of about half an inch
more or less according to the desired size of the bags, a coating of paste or
other adhesive mixture, contained in a trough in which revolves a long roller,
upon which two narrow adjustable metal rollers revolve, thereby taking off
a certain quantity of the paste, and spreading the same upon those parts of
the paper with which the said rollers come into contact.
During this
operation the paper is advanced through the machine, the edges thereof being
brought into contact with inclined pieces of thin metal, which effect the
creasing or folding of the edges, after which, and as the paper continues to
advance, the folded edges are brought between pressure rollers, which effect
the uniting of the folded and pasted parts of the bag to the body thereof, and
the bag then passes out of the machine finished. Thus it will be seen that
the several operations of doubling, pasting, folding, and uniting the paper
are performed in regular order of succession, the operations of the machine
being continuous instead of intermittent, as in other machines employed for
a similar purpose, and I would here observe that instead of feeding the
machine above described with separate pieces of paper previously cut to the
desired size and shape to form a bag, the machine may be fed from an endless
or very long web of paper direct from a paper-making machine, and be cut
off the desired length and shape by-knives placed crosswise and lengthwise
of the machine, and actuated by suitable cams or cranks, wheels, rods, and
levers worked from the main driving shaft of the machine; and further, if
found desirable the above machine may be connected with printing machinery
for printing thereon devices, as also the names, addresses, and businesses of
the persons for whom the bags are to be made. The machine may also be
fed by hand with the materials ready cut and folded for making into bags and
such like articles.
:
The above machinery is also adapted for folding and pasting envelopes
and for making bags of different sizes by a simple adjustment of some of the
"parts.