US299918A

US299918A - Card-stripper

Info

Publication number: US299918A
Authority: US
Publication date: 1884-06-03
Anticipated expiration: 1901-06-03

Description

2 SheetsSheet 1.

(No Model.)

J. M. DUNHAM.

CARD STRIPPER.

No. 299,918. Patented June 3, 1884.

2 t e e h S h t e e h S 2 M A H N U D M m m d 0 V M 0 w CARD STRIPPER.

Patented June 3, 1884.

Nirn STATES PATENT OFFI E. I

JOSEPH M. DUNHAM, OF HOLYOKE, MASSACHUSETTS.

CARD-STRIPPER.

SPECIFICATION forming part of Letters Patent No. 299,918, dated June 3, 1884.

Application filed March 20, 1882. (No model.)

' of Massachusetts, have invented a certain new and useful Improvement in Card-Strippers, of which the following is a specification.

My improvement has relation to mechanism for stripping the top-flats of carding-machines, and has particular reference. to the mech anism by which the fast and slow motions are controlled and regulated. It is customary to mount the arm or frame which carries the stripping devices upon the axle of the card-' ing-cylinder as an axis, and to connect the stripper with fast and slow motion pulleys. By the slow-motion pulley the arm or frame is vibrated or caused to travel back and forth along the top-flats, and by the fast-motion pulley the, stripping device proper is caused to act upon the lifted top flat opposite which the stripping mechanism, by the movement of the arm or frame, is brought. The shifting of the actuating-belt from the one pulley to the other is usually accomplished by means of a belt-shipper controlled by a cam provided with two swells-the one, which may be called the fast-motion swell, to move the belt-shipper in a direction to throw the belt from the slow to the fast motion pulley, and the other, which may be called the slow-motion swell, to move the belt-shipper in the contrary direction, so as to return the belt from the fast to the slow pulley. According to the quality of the cotton which passes through the carding-machine,there is more or less waste caught up by the top-flats, thus rendering it desirable to strip each flat more or less frequently, according to the nature of the cotton operated on. To this end, in some cases the stripper is arranged to strip each flat in succession. In other cases it strips alternate flats, and so on, this action of the stripper being determined by the relative arrangement and dimensions of the fast and slow swells of the cam. In every case heretofore, however. of which I have knowledge the action of the particular cam employed in any one case has been fixed and invariable. If formed, for example, to cause alternate flats to be stripped, it could be used for that only,

and thus in order to vary the action of the stripper, in the sense of causing it to skip a greater or a less number of flats, it has been necessary to take off the cam and replace it by another of a conformation suitable to effect the change desired. It is my object to pro vide for this variation in the action of the stripper without necessitating the use of a number of interchangeable cams. In other words, it is my object to give one cam the capacity to do the work which heretofore has been accomplished only by having recourse to anumber of camsto be substituted one for the other, according to the requirements of the work. This result I find can be obtained by making the fast and slow motion swells of the cam adj ustable with reference to one another in the sense that they may be set nearer together or farther apart, so that the distance traversed by the pin of the belt-shipper (which projects in the cam-groove) before it reaches the fastmotion swell may vary. The greater this distance the longer will the shipper remain in its slow-motion position, the more travel will the stripper-carryingarm or frame have during the intervals between the strip ping operations, and consequently'the greater number of flats will it pass, and the less their distance apart the less will be the extent of travel of the said arm or frame during said intervals, and consequently the fewer flats will it pass. In this way, by varying the adjustment of the swells, I can cause the stripper to skip varying numbers of flats, asdesired. It will thus be seen that my improvement is characterized by the employment, in connection'with the fast and slow motion pulleys, the stripping mechanism actuated thereby, and the beltshipper for shipping the 'belt from the one pulley to the other, of a sectional shipper-controlling cam, the fast and slow motion swells of which are adjustable nearer to or farther from one another, for the purpose of varying the interval during which the shipper occupies its slow-motion position.

The nature of my invention will be readily understood by reference to the accompanying drawings, in which Figure 1 is a side elevation of a cardingmachine provided with stripping devices embodying my invention. Fig. 2 is an edgeview, on enlarged scale, of a portion of the stripper. Fig. 3.is a plan of the sectional shipper-controlling cam. Fig. 4 is a side or edge elevation of the same. Fig. 5 is a plan of the fastmotion swell detached.

I will first describe the general organization of the machine and its appurtenances, and will then proceed to a description of those parts in which my improvement more particularly is comprised.

Thecarding-machine represented is one of known construction. The axle or shaft of the carding-cylinder is indicated at T, and on it are mounted the fast-motion pulleyD and the slow-motion pulley O. The former pulley, D, is fast on the shaft T, and the latter, (3, is loose thereon. The doffer-actuating shaft S drives the doffer (I through the intermediary of belt 1 and pulleys 2 3, spur-wheel K, fast on the axis of pulley 3, and gear 6 on the axle of the doffer d. The slow-motion pulley 0 gets its motion from the same shaft S through the intermediary of a beveled gear fast on the axis of pulley 3, which meshes with beveled pinion 4 on shaft B. On this shaft is another beveled pinion, 5, which engages a .beveled gear, 6, on shaft G, which shaft, at

its other end, carries another beveled gear, 7, that engages and drives the pulley G. I remark here that shaft B, through the intermediary of gearing 8 9, drives the feedwheels of the carding-machine, the machine being one of that type in which the feed and doffer are at the same side of the machine. Loose on the same axis with the pulleys O D is the pendulous weighted arm or frame F, which carries the'working parts of the stripper. At the upper end of the arm is the pulley E, driven from the fast or loose pulley by a belt, 0, in the usual way. On the hub or shaft of this pulley E is a pinion, a, which gears with an intermediate gear, Y, (on arm F,) on whose hub is a pinion, a, which gears with and drives the toothed wheel H, mounted to revolve on arm. F. This wheel, when in motion, operates in connection with the mangle rack and pinion (indicated at g h) in the wellknown way to produce the back-and-forth movement of arm F. The stripper-arm proper is indicated at j. The belt-shipper is shown at B, pivoted at t, in the usual way, to an arm or bracket, t", on arm F.

Thus far the general organization and arrangement of parts does not essentially differ from that of other known card-stripping devices.

I now proceed .to a description of the sectional shipper-controlling cam, in the combination of which with the shipper, the fast and tion.

cam, and is provided with swells M N. The former is the slow-motion swell. The latter is the fast-motion swell. The direction of revolution of the cam is indicated by the arrow in Figs. 3 and 4. The belt-shipper B is provided, as usual, with a pin or roller stud, which enters the groove of the cam. WVhen this stud is in the part m of the groove, the shipper is in its slow-1notion position, as seen in Fig. 2, and when the stud is in the part a of the groove the shipper is in its fast-motion posi- It will thus be seen that with the cam revolving in the direction of the arrow in Fig. 4, the farther the toe of the swell N is from the swell M the longer will the shipper remain in its slow-motion position, and therefore the greater will be the distance traveled by the arm or frame F in the intervals be tweenthestrippingoperations. Consequently, by varying the distance of the two swells from one another I can correspondingly increase or decrease the extent of the periodical travel of the frame F. To this end either or both of the swells can be made adjustable. I havein the drawings represented the swell N as made adjustable, and this in practice will be found sufficient. It is made detachable, and is held to the appropriate flange of the cam by a screw, L, which passes through any one of a series of holes, L, formed in the flange, into the selected one of a series of internally screwthreaded sockets, a tapped into the swell N. This is one simple and convenient way of giving the swell the requisite capacity for adj ustment.

The mode of operation of the devices under the arrangement described has been sufficiently pointed out during the course of this specification, and requires no further explanation.

WVhat I claim herein as new and of my own invention is- 1 The combination, in a card-stripper, with the fast and slow motion pulleys, the stripping mechanism, the belt, and the belt-shipper, of a sectional shipper-controlling cam provided with fast-motion and slow-motion swells adjustable with relation to one another, substantially as and for the purposes hereinbefore set forth.

JOSEPH M. DUNHAM.

\Vitn esses:

JOHN J. REARDON, NATHAN Conn.