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: 1866

page_text: PROVISIONAL SPECIFICATION left by Henry Rankin at the. Office of the
Commissioners of Patents, with his Petition, on the 22nd March 1866.
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 of paper of which each bag is to be made

page_text: 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 incb, more or less according to the desired size
of the bag, 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 effects 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 feil
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 whome 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.