US85432A - Improvement in loom - Google Patents

Description

`fateci 'ffimn Y *Maw y *MW GEORGE CROMPTON, OF WORCESTER, MASSACHUSETTS.

*Letters Patent No. 85,432, dated December 29, 1868.

IMPROVEMENT IN LOOM..

To all 'whomvit mycoucem;

Be it known that I, GEORGE ORoMP'roN, of Wor cester, in the county of Worcester, and State of Mas# sachusetts, have invented .an Improvement in Looms; and I do hereby declare that the following, taken in connection with the drawings, which accompany and form part of this speciication, is a description of my inventin, sulficient to enable those skilled in the art to practise it.

My invention has reference to the z trrangement of angular lifter, depresser, and 'evener-levers of -fancy looms; and

The invention consists in pivoting the evener-levers upon' stationary fulcra, and connecting the lifterand depresser-levers to such pivoted levers by links, so as to produce a parallel movement between each evener, and the litter or depresser with which it is connected, the eyener-levers and lifter and depresser-levers being connected at their outer ends to slide-rods, by which they are actuated.

The drawing represents aloom or loom-frame, with my improvement embodied'thereupon.

A shows an end view ofthe-loom;

B, a plan, and

C, an end view ofthe levers and lever-mechanism.

a denotes the frame.

y b b, the upper and lower harness-levers, between the outer ends of which the hooked jacks c are hung, the jacks being shown as jointed directly to the upper levers b, and `strung to the lower ones. p

These jacks are distributed after each successive change of the shed by a pattern-chain or cylinderd,.

and theyare raised and lowered, to form the shed, by a lifter-lever, e, and a. depresser-lever, j', which are' hung to rise and fall angularly, and are connected to and derive their motion from' slide-rods g, actuated by cranks at the end of the lathe-shaft.

After each formation of shed and throw of the shuttle, the jacks are returned to or towards their normal position, and as they complete this return-movement, they are clamped between angular evener-levers-h i, which are hung on stationaryt'ulcra 7c, or to a stationary fulorum-plate, and are jointed at their opposite ends to and are reciprocated by the slide-rods g.

While the outer ends of the lifter and depresserj levers, and the outer ends of the 4evener-levers are inner ends of the lifter and depresser-levers, in order to have movements coincident-with the lifter and depresser-levers, are jointed to such evener-levers by links l, the levers e fbeingV made short, and having their ends moving in guide-slots in a plate, m,'thereby obtaining a coincident movement of each lever, f or g, with the corresponding evener-lever, Wi'thut extend-y ing the lifter and depresser-levers out'to the same length as the levers h e', to be hung. at their ends on stationary fulcra, the same as are such levers h c'. l

Now,in some looms having' angular lifter andA (ie-- presser-levers, there have been employed angular' or vibrating lifter and depresser-level's, pivoted on fulcra in the clothamaking plane, and short evener-levcrslinked to and' so as to move coincident with such pivoted lifter and depresser-levers, both sets of levers being actuated from slide-rods, as shown here.

But such an arrangement'involved the necessity of projecting the lifter and depresser-levers out over and .near the drop-boxes, and their proximity thereto interfered. with the removal of the shuttle-boxes for repairs, the standards for supporting the'pivoted ends of the levers having to be removed, to effect 'the removal ofthe boxes, and to remedy this defect, I project the evenerlevers outfto the cloth-making plane, andpivot l them there to a standard or fulcrum-plate,- as shown,

and then make the lifter and depresser-levers short," and connect them by links to the evener-levers, thus A leaving all the space clear below the eveners, or be tween them and the boxes, thus allowing the boxes ness-jacks, substantially as set forth.

GEO. OROMPTON.

.Witnessesz l HORACE WYMAN, J. A. WARE.

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