US455865A - Lint coating and packaging machine - Google Patents

Description

(N0 Model.)

J. W. JOHNSON.

} LI NT GOATING AND-PACKAGING MACHINE. No. 455,865. Patented July 14, 1891.

we nonms PETERS cm, mioYu-umo, wAsfima'ran, 04 c.

. V, V y

UNITED STATES PATENT OFFICE.

JAMES \V. JOHNSON, OF NEXV BRUNSlVICK, NElV JERSEY.

LINT COATING AND PACKAGING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 455,865, dated July 14, 1891.

' -Application filed May 21, 1891. Serial No. 393,593- (No model.)

To ZI/ZZ whom it may concern.-

Be it known that I, JAMES W. JOHNSON, a citizen of the United States, residing at New Brunswick, in the county of Middlesex, State of New Jersey, have invented certain new and useful Improvements in Lint Coating and Packaging Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to machines for surfacing cotton lint with an adhesive substance to unite its fibers; and the objects of my improvement are to provide a simple and inexpensive machine for surfacing or impregnating the top or bottom or both surfaces of a homogeneous butthin bat of absorbent cotton lint with an adhesive solution to unite together the fibers of said surfaces to adapt it for use by dentists as an absorbent in the mouth of their patients, or as lintin dressing wounds without danger of having the fibers adhere to the parts to which it is applied. I attain these objects by the construction illustrated in the accompanying drawings, in which Figure 1 is a side view of a machine constructed in accordance with my invention. Fig. 2 is a vertical section of a modification of the same.

In said drawings, A represents a tank containing a thin solution of an adhesive substancefor example, a solution of two ounces of starch in twenty pounds of water. Above said tank two horizontal rolls l3 and B are placed one above the other and have their journals at each end received in bearings mounted in a frame 0, the upper bearings 0 being adj ustably retained by vertical screws 0 The rolls B B are made of an elastic material, preferably rubber, upon which there is a covering of coarse canvas or of wire 1), preferably woven, to slightly indent or give a pebbled appearance to the dampened surface of the material passed between them, said indentations facilitating the impregnation of the viscid or adhesive liquid into the material to a short distance below its surface.

In Fig. 1 the canvas covering of the lower roll is in the form of an endless belt b that is made to pass around guide-rollers a, and a to guide and conduct said belt under the surface and within the gummy liquid placed in on line to w is maintained substantially con-- stant by a gradual supply admitted from a reservoir D above the machine through a pipe (i controlled by a cock d The canvas or wire covered surface of the upper roll Bis also kept impregnated with the gummy or starchy liquid of the reservoir D by means of a series of pipes d, extending from the bot tom of said reservoir to within a short distance of the top roll B, each pipe being provided with a cock at to control the flow of the liquid therethrough. The rcservoirD is supported by legs D resting upon the machine.

To properly distribute the gummy liquid upon the surface of the roll B, a rubber roller e is made to press against said surface. For this purpose the journals of said roll 6 are mounted in movable bearings that are retained by means of pressure-screws f, passing through a frame 0 attached to the side of the frame O. The rolls B B preferably have upon their journals gears g to cause them to rotate uniformly together.

In operation a hat of absorbent cotton H is coiled upon a mandrel h, and the latter has its ends loosely mounted in. racks A upon the machine, and one end of said bat is introduced between the rolls B B and said rolls being made to revolve the two surfaces of the bat become not only coated, but impregnated with a small amount of the starchy liquid, and the bat is reduced'to a thickness about equal to thick blotting-paper well adapted to the use above stated. From the rolls the prepared material passes over the side of the machine and is either received in the form of plies or conducted into a drying-room. Shields A are generally placed upon the tank A to prevent the bat or completed material from sagging into the starchy liquid.

If it is desired to impregnate the bat of absorbent cotton only upon one side-as, for example, the bottom side-the series of pipes at are closed by means of the cooks d", and said ICC) bat is passed through the machine; but if it is desired to impregnate the top side only the cooks d are opened and the tank A is left empty of gummy liquid.

Having now fully described my invention, I claim- 1. In a lint-coating machine, the combination of two rolls of elastic material covered with Wire or canvas cloth and mounted one above the other, a tank under the lower roll, adjustable bearings for the upper roll, an elastic roll adj ustably retained against the upper roll, a reservoir above said rolls, and a pipe leading, from said reservoir to the upper rolls, the area of said pipe being controllable, substantially as described.

2. In a lint-coating machine, the combination of a frame, two rolls mounted one above JAMES W. JOHNSON.

I Witnesses:

JOHN A. LAWV, 'IHos. G. PHINNY.

Images