US57955A - Improved machine for varnishing cloth - Google Patents

Description

S. B. B. N OWLAN. Machine for varnishing Cloth.

Patented Sept. 11, 1866.

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UNITED STATES PATENT (Danton.

SAMUEL'B. B. NOWLAN, OF NEW YORK, N. Y.

Specification forming part of Letters Patent No. 57,955, dated September 11, 1866.

.central vertical longitudinal section.

Similar letters of reference indicate corresponding parts in both figures.

This invention consists in a novel construction of a machine for coating fabrics with varnish, as required in the manufacture of oil or water-proof cloths, whereby the several operations of saturating the cloth with varnish, of

' removing the surplus varnish from the said cloth and evenly spreading the residue upon its surface, and of thoroughly drying the var- .nish in and upon the fibers thereof are simultaneously performed upon the different portions of the cloth as it passes through the machine, thus greatly reducing the expenditure of time and labor required in the manufacture of such water-proof fabrics as heretofore conducted. 7

To enable others to understand the construction and operation of niy invention, I will proceed to describe it with reference to the drawings.

A is a strong frame-work, which supports the other portions of the apparatus, and in the front or forward end of which is situated a vat or reservoir, B, which holds the varnish with which it is designed to coat or saturate the cloth. The sidcsof this vat are made double,

' with a steam-space, cubetween them, the steam in the said space to keeping the vat warm, and

consequently keeping the varnish in a liquid condition during the operation of the machine.

I) is a horizontal cross-piece fixed in the frame-work A, and supporting a horizontal steam table, 0., the upper side of which is made of sheet metal or other good conductor of heat, this steam-table 0 being connected by a pipe, c, with the steam-space a of the vat B.

e is a vertical shaft, which is suspended and works in a suitable bearing or journal-boxfixed in a transverse bar, f, and which hasa driving-pulley, 9, attached. to its upper end, while upon its lower end is secured a circular or other properly-shaped brush, D, the length .or diameter'of which should be about equal to upper part of the frame-work A, and is open .ated by abelt, h, which extends from a pulley, i, on the shaft 0 to another pulley, j, on the shaft is of the fan of the said blower.

F is a serpentine pipe, which is placedupon the upper side of the rearrnost portion of the framework A, and has its two open ends in communication with the fan blower E. Formed longitudinally in the under side of this serpentine pipe F is arow of small holes or perforations, (indicated at-tin Fig. 1,) so that when air is forced into the said pipe by the fan blower E it will be forced out downward through the aforesaid holes or perforations in the under side of the aforesaid pipe.

Situated in the forward part of the framework A is a vertical transverse sliding frame, G, which works in suitable guides formed in the aforesaid frame-work, .so that the frame: .Gr may be moved up or down when desired to increase or diminish the tension of the cloth during the varnishing operation, and also to enable the cloth to be varnished with equal facility atwhatever height thevarnish may be in the. vat, as will be hereinafter fully ex-' plained. The lower end of this frame Gr projects downward into the vat B, and carries a roller, m, at its lower side, the said roller m extending. from one end of the frame to the other.

Working in suitable bearings secured upon the extreme front end of the frame-workA is, a horizontal transverse roller, H, and at the upper front corner of the said frame-work is another transverseroller, I. A similar'roller, J, is situated in front of the steam-table G and over the rearinost side of the vat B. nis v a smaller roller, which is placed in front of the roller J, parallel with and nearly in contact with the same.

R represents three transverse horizontal rollers, which may be placed on a level with each other, and which are situated in rear of the steam-table C. These rollers R, together with the rollers I and J, are all of the same size; and fixed upon one end of the shaft 1 of each one is a worm-wheel, s, which meshes into a screw, a, formed upon a longitudinal shaft, T, which is situated at one side of the frame-work A, and is rotated by a belt upon the pulley w, attached to one end of the said shaft T.

K are transverse rollers corresponding innumber with the rollers R, and placedi n the upper part of the frame A, over the said rollers R and underneath the serpentine pipe F.

N is another transverse roller, which is situated at the rearmost end of the frame-work A, and which has a pulley, w,- fixedupon one of its ends. A similar pulley, z, is fixed upon the corresponding end of the rearmost roller R, and the two pulleys are connected by a belt, 11 so that the rotation of the roller It communicates a corresponding rotary mor crnnut to the roller N.

The vat B being filled with varnish, steam of any desired temperature is let into the steamspace. a of the vat B, and consequently into the steam-table G, and a rotary motion is communicated to the brush 1) by a belt acting on the pulley g, the belt h at the same time operating the fan-blower E.

The cloth to be varnished is represented in red lines in the drawings, and, previous-to bein g varnished, is wound or. rolled" upon the roller H. The outer end of the cloth is'then drawn or extended back, first over the roller I, then underneath the roller m of the slide G, then upward between the roller J and the scraper n, and then back over the fiat horizontal surface of the steam-table (J, and then underneath the foremost roller R, whence it is carried-alternately over the rollers K and under the rollers R, and is finally secured to the roller N. The several rollers being rotated by the means hereinbefore fully set forth, and in such direction as to unwind. the cloth from the roller H and wind it upon the roller N, the cloth is drawn back through the varnish in the vat 13, (its tension being regulated by the pressure of the roller m,) the varnish adhering to and saturating the same, thence between the rollers J and n, which squeeze or express the surplus varnish therefrom, and thence over the warm uppersurface of the steam-table (J and underneath the brush D, the warmth of the steam-table keeping the varnish in a fluid condition, while the brush D spreadsit evenly over the surface of the cloth. The cloth then passing over the rollers R and K, as hereinbefore explained, the varnish is dried by the air forced downward upon the cloth through the holes 1" in the under side of the serpentine wound upon the roller N, the said rollenis removed and replaced by another, the roller B being also'replaced by one upon which is wound the succeeding piece ofcloth, upon which the same operation is performed.

What I claim as new, and desire to secure by Letters Patent. is- 1 I 1; The steam-table 0, arranged underneath the cloth and in relation with the brush 1), substantially as herein set forth, for the purpose specified.

2. The adjustable sliding frame G, applied in combination with the vat 13, substantially as herein set forth, for the purpose specified.

3; The vat B, pressure-rollers J n, and frame G, arranged in relation with each other, andwith' the steam-table O and brush D, substantially as herein set forth.

4. The arrangement of the blower E and perforated serpentine pipe F with reference to the cloth as it passes from the coating or saturating devices, substantially as herein set forth, for the purpose specified.

' SAMUEL B. B. NOWLAN.

Witnesses:

A. Le Guano, J. W. Ooomss.

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