US95092A - Improvement in loom - Google Patents

Description

` broken away,V j

G is a horizontal section on the line xx, (the central' GEORG-n oRoMPrroN, or rWonenSTER, MASSACHUSETTS.

' Leners Patent No. 95,092, anal Salimbeni, 1869.

The Schedule referred. toixi these Letters 1atent and making part of the same.

To all whom it fu1/y concern: j

r Be it known that I, GEORGE CBOMPTON, of Worces- J ter, in the coiinty of Worcester, and State of Massal chusetts, have invented Improvementsin Looms; and

I dohereby declare that thefollowing, taken in connection with the drawings` which accompany and form part of this Sp'ecication, is a description of my invention,.sui`cient to enable those skilled in the-artyto practise it.

My presentinvention" relates particularly to the organization of the drop-boxmechanismand shipper", i mechanism of that class of fancy-looms in which the boxes are distributed, as indicated, by a single patternchain or cylinder, by meansof sets of tappets on'a tappeti-shaft, one tappet yraising or lowering the boxes one space, andanother tappet lmoving the boxes a double space, s o that any one of the three boxesfmay begained at will. l

M'y improvement consists in combiningwith thel tappet-shalt, and the two tappets at each end thereof,

. two auxiliary ratchets and pawls and an auxiliary tappet-workin g shaft, geared to the tappet-shaft, by means of whicllmovement may be imparted to each or either of the tappets at theopposite end of the shaft, such l movement being independent ofthe movements imparted to thetappets adjacent to the ratchets; yand The invention further consists in the peculiarorganivnation Aof the belt-Shipper mechanism.

, Thedrawings representa loom or loom-frame with my improvements embodied thereupon.

A shows the loom in end elevation. Y `B is ,aside elevation, showing the box-actuating mechanism at the opposite ends of the loom', the central partsof the frame, shafts, beams, and lay vbeing parts being broken away, asv at 15,) showing the boxactuating-mechanism in plan.

a'denotes the frame. b, the lay. 4 v c, the crank-shaft that operates thelay,

d, the cam-shaft that operates thepawls which actnate the ratchets of the tappet-Shaft e, `whose tappets ,effect the changes of the boxes.`

This tappet-shaft carries, at one end, two tappetwheels, fg, and; .at the opposite nd, two other tappet-wheels, h t', each set of tappet effecting the move- I ments of the set of boxes, k, on the corresponding end j of the frame.

Each set of boxes is supported 7upon anvertical rod, l, at the end of a lever, m, fnlcrnmed at n, a pin projectingfrom the'opposite end ofthe lever being pressed np toward or against the peripheries of the two tappets at the corresponding end of the ltappet-shaft. l The tappeti-shaft @carries four ratchets, o p q fr, one

`opposite end of the lay.

for each tappet; and ywith each ratchet engages, at

proper times, a pawl, s, pivoted in a swinging carrier, `t, which is thrown forward by the cams on thecamshaft, and backy by a suitable spring.

Each p awl is hung to-a linger, u, resting upon a pattern-chain or cylinder, o, eachl pawl-finger holding its pawl above its ratchet, or letting it down into posivtionV to turn its ratchet' at the forward movement of the pawl-carrier, as may be determined by the patternmechanism.

All the ratchets but one are loose upon the tappetshaft. l

The outer loose ratchet, o, is-fixed to the outer tappet-wheehj; and the next tappeti-wheel, g, is ixed to the adjacent ratchet 1),"(which also turns upon the shaft-Q and, as vthe lever-pin under these two tappets passes from the larger tothe smaller radil'1s.(or

, versa) of the "smaller tappet, it eects a movement of theboxes one space,l while, when it passes from the larger to the smaller radius (or Avice tersa) of the larger tappet, it ei'ects thernovement ofthe boxes two spaces, so that by means of the `two tappets, either box of the setof boxes at this end of the loom can b'e brought opposite the race.' v

The third ratchet, q, is fast upon the shaft, as is also one ofthe tappet-wheels at the opposite end of the shaft, so that movement of this ratchet by its pawl effects the movement of the said fast tappeti-wheel and corresponding movement of the shuttle-boxes at such As,'in -order to make the other or fourth tappetwheelindependentin its movements from the last-named tappet-wbeel, it ,and its ratchet fr must both be loose upon the shaft, an intermediate mechanism is neces- Sary for transmitting movement to it. from its ratchet fr, which mechanism is as follows:

Fixed .to the ratchet 'r is a gear-wheel, w, which meshes-,into'and drives a gear, so, fixed on one end of an auxiliary shaft, y, at whose opposite end is a simi-V lar gear,f.z, meshing into and driving a gear, j, lixed to the fourth tappet-wheel, movement imparted to the fourthratchet being thereby transmitted to the fourth to 'those at the opposite end thereof, as relates to the movements of the boxes affectedby them.

a? denotes the shipper-fork, mounted on a rockeri arm, b2, and fixed to one 'end of a connecting-rod, o?, whose other end is jointed to one arm of a bent lever,

d2, pivoted upon a .bracket extending from the frame la, the other arm of this lever having a slot, e2, in which .vorks a'pin projecting from a Vertical shipper-lever, f2, at one end ofthe frame a, the upper part of this shipper-lever travellingrin a guide-slot, g2, at one end of which it is retained by a notch, h2, except when released from such notch, when it is carried to the opposite end of the notch by a suitable spring.

Turning in bearings at the end of the frame a, at the bottom of the breast-beam, is a rocker-shaft, e?, on the end of which, next to the shipper-lever, are two arms, k2 P, while, at the opposite end of the beam, said shaft carries a handle, m2.4

The upper arm k2 projects toward the shipper-lever, and, by pushing the handle fm2 toward the frame, said arm pushes the lever out from its stop-notch, the lever then springing down to the end of its slot, thereby turning the bent lever d2, and knocking ofi' the l shipper-fork.

The arm l2 projects down from the shaft infront of a nger, n2, projecting down from. the outer end of a lever, o2, whose other end is pivoted on the under side of the breast-beam.

Just inside of the end-piece of the frame a, a projection, p2, extends down from this lever, as seen at D and E. When the dagger on the lay strikes this projection, it 'pushes back the linger n?, causing the finger to press against the arm l, projecting down from the shaft 112, thereby turning the rookershaft, and causing the upper arm k2 to push the shipper-lever fron] its notch, and knoekiug off the loom.

The shipper-lever is drawn back into its n'oteh,from the opposite end of the loom, by means'of a hook, 'f l, at the end of a rod, 12, running under the breast-beam, and jointed, at its opposit'eeud, to a hand-lever, s2, by Working which the hook is drawn back., bringing with it the shipper-lever, the latter springing into its notch when it comes opposite thereto.

I claim, in combination with a box-indicating pattern-mechanism at one end of the loom, and with two tappet-wheels and their. ratchets at the same end of the loom, and loose upon the tappet-shaft, the two o2, substantially as described. n

' GEO. CROMPTON.

Witnesses:

FRANors GOULD, S. B. KIDDER.

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