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Publication numberUS80608 A
Publication typeGrant
Publication dateAug 4, 1868
Publication numberUS 80608 A, US 80608A, US-A-80608, US80608 A, US80608A
InventorsGeorge Crompton
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
George crompton
US 80608 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


Leners Patent No. 80,608, dazed August 4, 1868.


litige dgreimle referat tu in there tetters ntmt mit mating niet nf tige stmt.


Be it. known that I, Gnonen Cnoiirron, of the city and county of Worcester, in theV State of Massachusetts, have invented an Improvement in Looms; and I do hereby declare that the following, taken in connection i with the drawings which accompany and form part of this specification, is a description of my invention sufficient to enable those skilled in the art to practise it. j

My improvements relate to the arrangement of the lifter, depresser, and even er-levers of fancy-looms, and

the mechanism for operating such levers, the Vinvention being particularly applicable to that class o f fancy-looms in which the harness-frames are suspended to "and betwe'enthe inner ends of horizlontallleve'rs, the outer ends of which levers 4are connected by the harness-jacks. or jack-plates, (jointed 'directly to the outer ends ofthe npper levers,) and the cording whichstrings-the lower endsrof the jack-plates to3the front 'ends of the lower A horizontal levers.

My invention consists in lifting andvdepressing the jack-plates (to formV the shed) by means of lifter and dcpresser-bars, which maintain a horizontality during most of their movements informing the shed, but which are thrown into inclined positions' to give the properinclination to' the shed at the, end of each movement, o r just before the shuttleis thrown, and in giving to the evener-levers a corresponding movement. v

The drawings represent in end elevation a loom-frame, embodying my improvement. i

a denotes the frame; o, the lathe-shaft; c, thelnpper, andlol the lower horizontal harness-levers, between and to the inner ends of which the harness-frames are suspended, the outer ends ofthe upper levers being jointed to upright .hooked harness-jacks or jack-plates, thelower ends'oi' which jacks are corded to the outer endsof the lower harness-levers. i j

The hooks upon the opposite edges of these jacks are thrown in 'to connection (respectively) with a lifterbar, glgg'in front of them, or a depresser-bar, c, in rear of them, by a pattern-cylinder or chain, f, or are so strung by inclined cording as to engage normally with the lifter-bar, engaging with the depresser-bar only when thrown inwards by the pattern-cylinder or chain. f

The lifter-bar Z2 is a horizontal bar, having one end free, and working verticallyuin a-slot, g, in a bracket, it, and being jointed at its otherV end by n. fulcrum-pin, z, to an arm fixed upona slide-romy'. This end of the lifter'hasa curved leg, le, projecting down from it, (making oi' thelifter a bent-lever,) said leg being jointed to a rocker-wheel or segment,.l, which has a rocking or reciprocatingni'ovement imparted to itby a link, m, jointed to the rocker-wheel, and to a crank-pin on the lathe-shaft b. i

When the lifter is in its lowest or normal position, (totake the jackhooks,) the pin m2, which connects its leg c tothe rocker-wheel, is on a horizontal centre. As the wheel rocks, thisA pin` moves from a horizontal centre to or nearly to a vertical centre, as seen in the drawing. During the first half of this quarter rotation, it maintains a nearly vertical position, thereby causing the lifter-bar tomaintain itshorizontality; but during the latter half of its motion its movement is nearly lateral, which causes the lever or lifter-bar to rock on its joint-pin, t',

thereby inclining the bar, as seen in the drawing, and ,effecting the proper inclination of. the adjacent harnessframes. v l

The depresser-bar c is similarly hung, by a fulcrum-pin, u, to an arm on a slide rod, o, and has a vertical leg, p, jointedV to the opposite side of the' rocker-wheel Z by a pin, q, ,the depresser boing drawn down and then inclined, the same as the lifter is thrown up and then inclined. y

The evcner-bars are seen at r, one being connected tothe lifter-bar, and the other to the depresser-har, by

the slide-rods j and o, at one end, an'dllinks s at the other end, and each being jointed to its slide-rod by a pin,

u, in an arm, v, projecting from the'slide.,

By these means, the motion of cach evener is coincident with the movement of the lifter or depresser to which itis attached.

I claim, in combination with hooked jacks, the angulailifter and depresser-bars or levers, the inclination of which is effected by means substantially as set fort i 1 also claim, in combination with lifter and depresser-bars, the inclination of which is eected as and by means substantially as set forth, the evener-bars or levers, connected to the. lifter and depresser-bars by the slide-rods undy the links s, substantially as described. Y

I also claim-the rocker-wheel or segment l, for imparting movement to the liftery und depresser-bars or levers, substantially as shown and described.



Cooperative ClassificationD03C1/04