US278488A - Hygrometric governor for railway-heads - Google Patents

Description

(No Model.) 3 Shee'ts-Shet 1.

'G. A. AYBRS.

'HY'GROMRTRIG GOVERNOR POR RAILWAY HEADS.

No. 278,488. Patnted MayRQ, 1888.

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HGROMBTRIQ GOVERNUR PoR RAILWAY HEADS. No. 278,488. l Patented May 29,1888.

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(No Model.) 3 sheets-#sheet s.

` G. A-.AYERS- HYGROMB-TRIG GOVERNOR POR' RAILWAY HEADS.4 No. 278,488. l Patented May 29.1883.

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UNI-TED STATES PATENT OFFICE.

GEORGIIA, AYERS,"()F HOLYOKE, MASSACHUSETTS.

HYGROMETRIC `GOVERNOR l-'OR RAILWAY-HEADS.

SPECIFICATION forming party of Letters Patent No. 278,488, dated May 29, 1883.

Application filed September 4, 1882. (No model.)

To all 'whom tt may concern y Be itknown that 1GE0RGE A. AYERs,-a citizen of the United States, residing at Holyoke, in the county ofHampden and-State of Massachusetts, have invented new and nseful Improvements in Hy'grometric Governors for Railway-Heads,` ot' which the following is a specification. i

This invention relatesto trumpet-governors for railway-heads; andit consistsin the combination, with an ordinary railway or drawing V head for reducing and drawing cotton-slivers,

ot' hygrometric trumpet-governor, the object being to so regulate the vibratory movements of the trumpet through which the sliver passes on said machines thatV said movements shall not occur in consequence of more-or less moisture in the atmosphere, whereby the resistance y which the aperturethrough the trumpet opposes to the passage of' said sliver through it `is varied, but that said vibratory movements of' the trumpet-lever, whereby the drawing of said sliver is varied, shall be induced only by actual variations in the weight ot' the sliver being drawn and delivered by the machine.

In the drawings forming part of thisspecitication, Figure lis a side elevation of a hygrometric trumpet-governor embodying my in vention, andshowing a section of the table ofthe machine to which it is applied. Fig. II is a side elevation of an ordinary drawing-head, partly in section7 showing the sliver-cans on opposite sides thereof, and havingsaid governor applied thereto. Fig. VIII is a detail view of parts of said governor and the trumpet-lever. Fig. IV is a front elevation of a portion of said machine and said governor.

Fig. V is a detail view of parts of the latter.

In the drawings, I) indicates an ordinary drawing-head. B is the table of the machine. c isthe trumpet. y is the trumpet-lever. :v is the trumpet-shaft. w is an'arm on shaft x. t is a connecting-rod. s is a weight-frame. o is a connecting-rod. n isa pivot-nut. his a pivoted lever. j c is a connecting-rod. a c are hygrometric posts. c c are caps, and c c are sockets, to said posts. `b is a post-base. del are metallic straps on one side of posts a, secured tolsaid capsand sockets. m is a weight, movable on said frame s. f is a lever-stand.

i Like letters refer to like parts in the several figures.

shaft .fr is connected, as usual, by the rod t. with the ordinary belt-adjusting devices, which govern the position ot' the belt 7c on the cone-pulleys J, as and for the purpose well understood by those skilled in the art. Said trumpet is secured to the upper end of a lever, y, and the latter to the horizontal shaft x, which is hung .i'n suitable bearings on the front ot' the machine D, so that the vibratory movemen-ts ot' said trumpet as the sliver passes through it canse the arm fw to vibrate vertically, and through its connection with said belt-adjust- ,ing devices by the rod t to actuate the latter, whereby the drawing-rolls shall be made to rotate at such speeds as will secure, as nearly as practicable, a sliver ot' uniform weight. The size of the opening in said trumpet is such as 'to permit a sliver of a certain bulk and weight per yard to pass through it with a certain amount of resistance, and it is customary to provide said arm w with a movable weight,`

a point thereon as will counterbalance said resistance, and when the proper weigbtot'sliver is passing prevent such a degree ot' vibration of said arm as will cause any increase or diminution ot the amount of cotton contained in the drawn sliver.

After having started the machine under the above-named conditions of adjustment, it will operate fairly well until there comes a change in the humidity ofthe atmosphere. It' the lat- SSS ter becomes drier, the bulk ot' the sliver in-l creases, and it draws the trumpet over toward thefront rolls ot' the machine, swinging the arm fw upward, and operating to solshift belt K as to vary the amount of cotton drawn into the sliver when no such variation is demanded to keep its weight to the standard; and if the atmosphere becomes more humid the bulk otA the sliver decreases, occasioning a contrary effect upon said trumpet and its connecting devices, and resulting also in a variation, in a reverse sense from the above, in the amount of cotton in the sliver.

The within-described improvements provide IOO lzo

a remedy for the aforesaid variations in the weight of said sliver by providing novel devices for moving a counterbalance-weight,m, (which is adapted to slide on a frame, s, attached to the arm 20,) which are actuated by the variations ot' the humidity of the atmosphere, so that when by dryness the sliver resistance in the trumpet is greater said Weight is moved toward the end of arm w, and when it is less, by reason of greater humidity, said weight is moved in the opposite direction.

rllheat'oresaid hygrometric governor consists of one or more posts, a, which are made from soft wood or other suitable material which 'is capable ot' action by the increase or decrease of moisture in the atmosphere.` Said posts are in the form ot' wooden strips cut from a suitable piece transversely to the grain thereof, as illustrated in Fig. '1, and the strip so cutis secured against end motion by having its upper end covered with a cap, c', and its lower end f enter a socket c on a suitable base b a metallic strap, d, being secured to said cap and socket, and covering one side ot' said post. Any other material than metal may be substituted for that inl said strap d, which is flexible, has sufficienttensile strength, and is unaffected by more or less humidityin the atmosphere. Two ot' said posts et are shown in the drawings connected to act together; but one only is re.

. quired, except in cases where the dynamic force of one might be inadequate for the purpose. Said posts are secured in said sockets c on the base b, and the latter is secured on the table B of the machine D. A lever-stand, j', is likewise secured on said table, and is provided with a slot, A lever, h, is pivoted to stand j' by abolt, t2,which passes through said slot and through a slot Iin'said lever, whereby said pivot-bolt may be moved to different positions relative to the upper end of lever h.

A connecting-rod, e, is pivotally connected to the caps c on posts a and to the upper end of lever 7L. The lower end of lever h is pivoted to asleeve on a nut, n, and the latter is located on the screwed end ofa connectingrod, o, whose opposite end is pivoted to one end of a weight or counter-balance, m. A weightframe, s, is secured to one side of the arm w, upon which said weight m is adapted to be moved. Therelativeconstructionot'saidframe and weight is shown in'Fig. 3.

The operation of my improvement is asvfollows, viz: The hygrometricpostsa awillstand about vertical when there is about a normal amount otmoisture in the atmosphere. The position they are shown in in Fig. lthat is,

- with their tops inclined toward the -trumpet and a consequent shrinking of the material composing said posts. The change to a moist atmosphere reverses their' positions by causing their ends to incline in an opposite direction,

and the said movements of posts a are communicated to the weight m through their connection with the latter by rod c, lever h, and rod `o. Thus when, by reason ofa dry atmosphere, the sliver draws the trumpet o unduly toward the front rolls of the machine, causing lever fw to be swung upward, the posts a gradually spring forward about as shown and move weight m backward, thus counteracting said undue action ofthe sliver upon the trumpet. The presence of much moisture in the atmosphere produces the reverse el'ects upon the trumpetposts a, and weight m; hence said weight is so moved by variations ofthe humidity ofthe atmosphere through its connections with posts a as to compensate for the variable resistance f I do not here claim the construction of the hygrometric posts a, nor broadly their use, independently of that, shown for governing or indicating purposes, nor any of the features claimed in my applicationf'orhygrometers led on even date herewith.

What I claim as my invention isl. yThe combination, in a railway-head for drawing and evening theslivers ofiibrous materials, of a trumpet and supporting devices'v provided with a weightfbearing arm and a weight, substantially as described, and of appliances, substantially as described, susceptible of dynamic action from atmospheric intlu ences, for moving said weight to different positions on said arm, substantially as set forth.

2. The combination, with the evening mechanism of a sliverdrawing frame, of a hygrometric trumpet-governor, substantially as described, adapted to act independently of any variationin the weight ot the sliver passing through said trumpet, all as set forth.

3. 1n combination, the weightm, arm w,sup portingthe same, substantially as described, one or more hygrometric posts, a, the connecting-rods c and 0, and the lever h, substantially as set forth.v

GEORGE A. AYERS.

Witnesses:

, H. A. GHAPIN, R. F. HYD'E.

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