US824787A - Stop-motion especially adapted for combing-machines. - Google Patents

Description

PATBNTED JULY 3, 1906.

W. HENRY? Y Y STOP MOTION ESPBOIALLY AOAPTBBYEOR comme mmamgsOV APPLIOAHOB mmm Pnla'r 1905,

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UNITED sTATns PATENT OFFICE.

WILLIAM HENRY, OF NEW BEDFORD, MASSACHUSETTS, ASSGNOR TO STODDARD, HASERIOK, RICHARDS & COMPANY, OF BOSTON, MAS- SAOH USETTS, A FIRM.

STOP-MOTION ESPECIALLY seam-ED Fon ooMBlNG-mAol-imss.

Specification of Letters Patent.

Patented July 3, 1906.

Application filed April 13, 1905. Serial No. 255.419-

To all whom t may concern Be it known that l, WILLIAM HENRY, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented'a new and useful Improvement in Stop-Motions Especially Adapted for Combine-Machines, of which the foilowing is a specification.

Combing-machines, as is Well known, act upon the lap, which in the comber Well known as the Heilman somber is fed down the incline conductor and between the tinted and pressure rolls to the nippers. Suring the ordinar f operation of the machine the lap or sliver o ten breaks between the rolls and the nipper and Winds on the luted roll. Its increasing thickness crowds the cushion-plate against the needles oi the half-lap or breaks the nipper-stand, so that the machine must be stopped and the lap cut ofi before the machine is in condition to start up again. The sooner the machine is stopped after the Winding begins the less time is Wasted in cntting off the lap and readjusting the machineY for continuing its Work; but as the operator may have charge of several of these machines it often happens that there is considerable' delay, due to the fact that he may be attending to one machine While an accident of this My inven-YYY tion is intended to remedy this dicnlty by providing a sto -Inotion Which is broughtlnto action b t e gradual thickeningo the lap as it Win s upon the luted roll. As

layers increase the iluted roll tends VtoV bind,

E so that it requires an increased power to rotate it, and in the form of my invention here- Y inafter described l utiiize the increase of resistance of the roll to cause such an operation of the belt-shipper as will throw the belt from the fast to the loose pulley Y on' the Vpowershaft.

My invention will be understood by reference tothe drawings, in which* Figure 1 is a sectional view of the essential parts of the Well-known Heilman coniber, to which I have applied my invention, Figs. 2 and 3 being detalls illustrating my invention. Fig. 4 is a sectionalview on line 4 4 of Fig. 3, taken in the direction of the arrow.

I will not describe the somber in detail further than to say that A is the lap Wound on .the usual core and resting on the Wooden rod G5. Vten:lenny of the spring G7 when compressed rolls B. The lap passes down the inclined conductor C and between the lower or fluted roll D and the pressure-roll E and Within reach of the ni pers e, These parts are suitably supportedin the frame A and are of ordinary construction and are operated in the ordinary way except as hereinafter described, The tinted roll D is mounted on or is virtual] a part of the shaft d, and, as usual, a num er of laps are operated on b r a corresponding number-of luted rolls an the other accessories of the somber. This shaft ci' Ina f YcombineV a number of these tinted rolls,VV all operated from the same power-shaft.

The power-shaft is lettered G and carries the usual-fast and loose pulleys G G2, G3 being'abelt bywhich they are connected with the shaftng or other source of posterV and which may be thrown from one pulley to the other by a belt-shipper G4. The belt-shipper G4 is of ordinary construction, being pivoted at and carrying a belt-engagin loop g', and it 1s operate by a curved rod pivoted to it at g and running in bearings G6. This rod G5 has a coiled spring G7 about it, one end of VWliielfrrests against an arrn GS, connected with'the bearings G6, while the other end rests against a collar G, adjustable on the This construction is such that the is to throw the belt trein the fast to the loose pulley. This action, however, is nor- Vrnally' prevented by means of a latch, one Vmember of which, H, is mounted on the collar G9 and the other a notched lever H', pivoted at 7L on the arrn G8. The notch on theY lerer'HYL is so located that when the parte?arein.V the positionY shown in Fig. 2 it Will'engage with the latch member H and so confineY the sprin G" that it cannot throw' Vthe belt-ship er an the belt from the fast to the loose pnl ey. When, however, the lever H has been lifted to disengage it from the other latch member H, the s rin G7 then on expanding throws the be t s ppen and hence the'belt, from the fast to the loose pnl-V ley. s described, thisY may' be done by handhntilg invention more especially relates .ter the accomplishing' of this operation automatically et such time as the winding of the lap 'on' the uted roll has taken place. VI have not shown the connections between the power-shaft G and the shaft J, by means of IOC which power is more immediately transmitted to the shaft d, carrying the fluted roll D, as those connections are common. I will only say that the shaft J carries a pinion j, which engages with a gear J on and concentric with the axis of the shaft d. The shaft d is connected with the rcar J b a yielding connection, by means o which w ile the gear J may be rotated at a constant rate of speed any increased friction on the shaft d will prevent its rotation with the gear J to a greater or less extent, and it is the utilization of this possible difference of rotation between the luted roll and the gear carried by it and by means of which it is rotated which enables me' to accomplish the desired result and which embodies my invention in its best form.

As shown in the drawings, the shaft d carries a sleeve d', keyed thereto, and having an arm d2 projecting therefrom parallel with the face of the gear J. This arm has a stop-lever d3 pinned to it at d4, which stop-lever is also pinned to the gear J by the pin j. I prefer that the ear J shall be mounted free to turn upon a s eeve d. A spring (comprising, as shown, in fact, two springs, the one, d, belng in the nature of a lever pinned to the gear J at d? and the other, d, also attached to the gear J at d9 and to the spring d as well) engages a pin d'0 on the stop-lever da. These springs are of such strength that under all the ordinary conditions of operation ,they hold the shaft d and the gear J firmly together. When, however, any unusual strain or friction is applied to the shaft d-such, for example, as might be caused by the winding up of the lap above referred to-the arm d2 and gear J cease to move in unison, the arm dz han ing back, and consequently by reason of the inding of the sto -lever d3 causing the stop-lever against the orce of the spring acting upon it to be thrown forward into the ositlon shown in dotted lines in Fig. 2 unti it strikes the pin du. This action of the stoplever brings it within reach of an arm h', adjustably carried by the rod h2, which is connected to the latch-arm H, its lower end running in an opening in a bracket h3, attached to the gear-case h4. As the toe of the sto -lever d2 strikes the arm h it lifts it, thus liftlng the latch-lever H and releasing the spring G", so that the belt-shipper is thrown fromithe fast pulley to the loose pulley and the machine is disconnected from the powershaft, thus stoppin the machine. y

While it is evident that this means of throwing the belt-shipper may be accom plished by means of other mechanical details,

believe that I am the first to utilize the friction or increasing resistance of the iuted roll to cause the operation of the belt-shipper.

It is also evident to those skilled in the art that while I have specifically described this invention in connection with the lower roll in a' combing machine its peculiarities are adaptable to other machines of a similar nature where the lower roll is inclined to wind up any broken lap or sliver which is passing between it and the upper roll. Therefore I do not mean to limit my claim to a mechanism of this charaeterwhen used on a combingmachine nor, in fact, to a bottom roll, for it is applicable to any roll upon which a sliver is liable to wind.

What I claim as my invention is- 1. In a machine of the character described, having an upper and a lower roll, means for operating said lower roll yieldingly connect e therewith and capable of engagement with a stop-motion for said machine, whereby when the said lower roll and its operating means are running at separate rates of speed, said operating means will operate said stopmotion, as described.

2. In a machine of the character described, a lower roll, a gear yieldingly connected therewith, means for applying power to said gear and said lower roll, means carried by said gear adapted to disconnect said gear from the source of power when said gear and said lower roll do not move in unison.

3. In a machine of the character described, a shaft carrying one or more rolls and having an arm mounted thereon to rotate therewith, a gear carried by said shaft and havin an independent movement with relation t creto, a spring connection between said shaft and said gear adapted to cause said gear and said shaft to operate normally in unison, a stoplever connected with said gear and said arm, and a stop mechanism, said stop-lever being adapted to be operated to engage said stop mechanism when said arm and said gear do not o crate in unison.

4. a machine of the character described, in combination with a pair of rolls, said rolls being separable from each other, means ada ted to be operated by the separation of sai rolls, whereby the said machine will be stp'fped, com rising a belt-shifter, a sliding ro connecte thereto, a spring mounted on said rod, a latch, means for securing one member of said latch upon said slide-rod, said means also serving as means for confining said spring, the other member of said latch being mounted upon the frame, and connecting means whereby the separation of said rolls will cause the separation of the members of said latch, the release of the spring and the shifting of the belt, as described.

WILLIAM HENRY. In presence of HENRY DENoYERs, HUGH WILLIAMS.

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