US745974A - Card-clothing. - Google Patents

Description

PATENTEDDEC. l, 1903. M. E. SULLIVAN.

CARD CLOTHING.

APPLICATION FILED MAY 4, 1903.

No MODEL.

Patented December 1, 1903.

PATENT OEEICE.

MICHAEL E. SULLIVAN, OF NEW BEDFORD, MASSACHUSETTS.

CARD-CLOTHING.

SPECIFICATION forming part of Letters Patent No. 745,974, dated December 1, 1 903.

Application filed May 4, 1903. Serial No. 155,478. (No model.) I I To all whom, it may concern:

Beit known that I, MICHAEL E. SULLIvAN, of New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Card-Clothing, of which the following is a specification.

This invention relates to card-clothing for carding-machines, such clothing being composed generally of a backing of leather or other like flexible material and wire teeth inserted in the said backing and projecting from the outer side thereof.

Vhile leather is the best known material for the backing of card-clothing and is in general use for this purpose, its use is attended with certain objections, the principal ones of which are as follows: First, the nature of leather is such that particles of lint and other matter contained in the material being carded adhere somewhat closely to the outer surface of the leather backing and obstruct the spaces between the teeth, the adhesion of the said matter to the backing being so close that its removal is attended with some difficulty; secondly, the compressible and yielding nature of the leather prevents it from supporting the teeth and causing them to stand out with the desired degree of firmness and stiffness.

My invention has for its obj ect to overcome and obviate these and other objections that exist to the use of card-clothing as heretofore made; and it consists in the improvements which I will now pro seed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a partial side elevation and a partial longitudinal section of one of the top flats of a carding-machine, the same being provided with card-clothing embodying my invention. Fig. 2 represents a section on line 2 2 of Fig. l, together with a dotted-line representation of a brush used for cleaning the card-clothing and removing lint therefrom. Fig. 3 represents a perspective view of a portion of the veneer, facing, or reinforcing sheet hereinafter referred to.

The same letters of reference indicate the same parts in all the figures of the drawings.

In the drawings, a represents the usual backing or base of a sheet of card-clothing,

the same being of flexible or compressible material, such as leather.

b o represent the usual Wire teeth, which are inserted, usually in the form of staples, in the backing a, the parts of the wire forming the legs of the staples projecting from the outer side of the backing and constituting the teeth, while the necks of the staples lie against the inner side of the backing.

In carrying out my invention I provide a sheet or piece of card-clothing thus constructed or of any construction which includes a flexible base or backing of relatively vyielding and compressible material, with a relatively hard veneer, facing, or reinforcing sheet c, superimposed upon the outer surface of the backing a and surrounding the bases of the teeth. The said sheet, which for convenience Iwill hereinafter term the facing, may be made of any relatively hard and dense material which does not possess the property of adhering closely to particles of lint, but, on the contrary, presents a hard and relatively smooth surface from which the accumulations of lint may be readily brushed.V The said facing at the same time should be sufficiently rigid or capable of supporting edgewise pressure to enable it to support the teeth and prevent them from leaning or tipping from their desired position relative to the backing. In practice I have found that a suitable material for the facing c is thin sheet metal, preferably aluminium. The facing c is perforated, as indicated in Eig. 3, so that it receives and closely surrounds the teeth b. The facing-sheet is preferably made sufficiently thin to enable it to be penetrated by the means used for penetrating the backing a, so that the backing and facing sheets may be assembled before the insertion of the teeth, the teeth being inserted simultaneously in the backing and facing.

In this embodiment of my invention I have shown the card-clothing applied to one of the top flats d of a carding-machine, the edges of the facing c being conned, with the edges of the backing a, by means of clamping ears or iianges e c, suitably securedto the flat d. The fiat here shown is of the usual construction adapted for connection in an endless chain IOO with a number of other iiats of like construction. In Fig. 2 I show by dotted lines por tions of the bristles or brush material of a rotary brush f, which is arranged to act upon the teeth ofthe chain of flats in the returning` stretch of said chain, the brush removing the lint and other matter from between the teeth.

I have found that the facing c besides reinforeing` the backing' and supporting the teeth so that they are not liable to be tipped out of plaee furnishes a surface which can be very quickly and thoroughly cleaned by the brush f, the hard material of the facing preventing the lint from adhering,` to its outer surface.

It is obvious that my invention is not limited to use in connection with a top flat as here shown and that card-clothing` embodying my invention may be used in connection with my earding` mechanism or appliance.

I olaim- Y l. Card-clothing provided with a relatively hard veneer or facing,` superimposed upon the outer surface of the tooth-holding base or backing.

2. Card-clothing provided with a thin sheet or layer of relatively hard material perforated to receive the elothing-teeth and superimposed upon the outer surface of the toothholding base or backing.

3. Card-clothing the backing ortooth-holding base of which is reinforced to support and stiften the teeth.

4. Card-Clothing the backing or tooth-holding base of which is provided with a facing of perforated sheet metal covering its outer side and surrounding the teeth.

In testimony whereof I have affixed my signature in presence of two witnesses.

MICHAEL E. SULLIVAN.

Vitnesses:

ERNEST W. Woon, GEORGE B. ARNOLD.

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