US476785A

US476785A - Island

Info

Publication number: US476785A
Authority: US
Publication date: 1892-06-14
Anticipated expiration: 1909-06-14

Description

(N0 Model.)

E. CLARKSON.

GILL PALLER. N0. m vas. Patented June 14 1892,

If? 4 WITNESSES: JNVENTOR UNITED STATES PATENT OFFICE.

ED WARD OLARKSON, OF BRADFORD, ENGLAND, ASSIGNOR OF ONE-HALF TO EDWIN FARNELL, OF VVOONSOCKET, RHODE ISLAND.

GlLL-FALLER.

SPECIFICATION forming part of Letters Patent No. 476,785, dated June 14, 1892.

Application filed February 26, 1891- Serial No. 382,591. (No model.) Patented in England October 12,1885,No. 12,094.

To aZZ whom it may concern:

Be it known that I, EDWARD CLARKSON, a subject of the Queen of Great Britain, residing at Bradford, in the county of York, England, have invented a new and useful Improvement in Gill-Fallers, (for which I have obtained a patent in Great Britain, No. 12,091, hearing date October 12, 1885;) and 1 do hereby declare that the following is a full, clear,

and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which- Figure 1 is an elevation of a gill-faller con- [5 structed according to this my invention. Fig. 2 is a plan view of the back of the said gillfaller. Fig. 3 is a vertical transverse section taken through the gill-faller on line a: a: of Fig. 1, wherein the form of the inner faces of the recesses in the sides of the faller-bar are shown straight in cross-section. Fig. 4 is an elevation of the said gill-faller, drawn to an enlarged scale. Fig. 5 is avertical transverse section taken through the gill-faller on line m 0c of Fig. 1, similar to Fig. 3, except that the form of the inner faces of the recesses in the side of the faller-bar are shown as concave in cross-section.

Similar letters refer to similar parts through- 0 out the several views.

My invention relates to improvements in gill-fallers employed in the combing or preparing of wool and other fibers; and it consists in constructing the faller head or bar with one or more recesses formed in one side or in the two opposite sides thereof, according as it is desired to employ a single or double row of pins, the inner face of the recess tapering or running out toward the back or lower edge of the bar. By this means the depth of the holes required for the insertion of the gills or pins is reduced, and the cost and labor of drilling the holes thereby greatly lessened, without seriously or injuriously reducing the strength and weight of the faller, and at the same time affording ample room for the easy and convenient drilling of the holes and insertion of the pins.

A is the faller-head, made of cast-steel, in

the two opposite sides of which are formed curved recesses 13 B, which recesses taper or run out toward the back O. Holes for the insertion of gills or pins are drilled or bored through from the recesses to the upper edge of the faller, through which holes the gills or pins G G are drifted. The inner face of the recess may be in the form of a plane and straight in cross-section, as shown in Fig. 3 of the drawings, or it may be concave in crosssection. The use of either form will be within the scope of my invention. The concave form permits the pins to be more easily inserted, and therefore I think its use preferable. The use of either form, however, atfords sufficient room for drilling the holes and springing in and driving the pins, and also permits the retention and use of sufficient bulk and weight of metal in the bar at and near the back or lower edge to give the necessary strength and the weight needed to secure perfect steadiness to the bar in the operation of the machine. The concave form in cross-section of the inner faces H H of the recesses B B is shown in Fig. 5 of the drawlngs.

D is a piece or bar of brass fitted into the upper edge of the faller, with its ends dovetailed into the taller, as at E E, and which may be brazed, soldered, or riveted therein. The object of making this part of brass is to prevent the faller from becoming rusted by damp or moisture in the fiber; but this is not indispensable, as the faller, if desired, as is often the case, may be made in one piece and without the use of the brass bar. The brass bar D also serves to laterally support and strengthen the pins, they being made to fit quite closely within the holes through the brass bar, and the pins in turn hold the brass bar in place in the faller-bar and prevent it from wearing loose from the faller in the operation of the machine.

Gill-fallers have heretofore been constructed by drilling holes through the entire depth of the faller-head from the back or lower edge to the upper edge and driving the gills or pins through from the back, the greatobjection to which method is the excessive labor and cost of drilling or boring through the whole depth of the head. Another method heretofore in use was to drift or drive the gills or pins through holes formed in a strip or bar of brass, the back of which was afterward fitted into the upper edge of the tallerhead and secured thereto by riveting or soldering. The serious objection to this method is the great liability of the brass piece or bar to become loosened and separated from the faller-head and the consequent expense for repairs. Another method also employed heretofore and which saved a part of the labor and cost of drilling through the entire depth of the head was to construct the taller-head so that in cross-section it was similar to the letter T, the holes being drilled through the head; but the objection to this form is that the fallers are rendered too light and are apt to break and otherwise be injured. Besides, in a faller head or bar thus constructed the cutting awayot' so much metal from the lower part of the bar and leaving so narrow a base renders it so poorly balanced and top-heavy and Withal so light that in the ordinary operation of the machine it works very unsteadily and jumps about, necessitating a much slower speed in running the machine; but by my invention as herein described and illustrated there is only the thickness of the part of the faller between the recess and the upper edge thereof to drill or bore through for the reception of the gills or pins G G in lieu of boring through the entire depth of the faller-head, and that, while the recesses B B effect the desired saving-in labor and cost of drilling, the weight and strength of the falier is not materially or objectionably reduced and there is ample room afforded for introducing the pins, while the original width of the back C is preserved and the gills or pins are securely and firmly held without liability to become loosened or separated from the taller-head.

The provision of as broad a base as possi ble and the retention of as much metal in the head or bar and as near the bottom as possible is necessary and important in order to guard against breakage and also to secure a perfect balance and consequent steadiness to the taller in the operation of the machine, thus enabling the machine to be run at a greater speed than would otherwise be possible. I

What I claim as. my invention, and desire to secure by Letters Patent, is

l. The faller head or bar A, provided with gills or pins G and having one or more recesses B formed in the side thereof and tapering or running out toward the back 0 and also having its back 0 of the same or substantially the same breadth as the upper edge and forming a part of the solid baritself, substantially as described.

2, The combination of the brass bar D With the taller-bar A, provided with pins G and having one or more recesses B formed in't'he side thereof and tapering or running out toward the back 0 and also having its back 0 of the same or substantially the same breadth as the upper edge and forming a part of the solid bar itself, substantially as described.

EDWARD CLARKSON. Witnesses:

JNo. A. OLARKsoN, 'l. T. EMPSALL.