US61010A - jenks - Google Patents

Description

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T0 ALL WHOM IT MAY GONOERN:

Be it known that I, BARTON H. JENKS, of Bridcsbulg, in the county of Philadelphia, and State of Pennsylvania, have invented an improvement in the construction of Bolsters and Steps for the Spindles of Spinning- Frames; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which- Figure I is a top view of one of the improved holsters. i

Figure 2 is a vertical central section through the same.

, Figures 3. and l are modifications of the bolster shown in figs. 1 and 2L Figure 5 is a vertical central section of a spindle step.

.Similar letters of reference indicate corresponding parts in the several figures..

rIhis invention relates Ato an improvement in the construction of the upper bearings', o1" holsters, and the lower bearings, or steps, for the spindles of spinningframes;l the object of which improvement' is to render such bearings cheaper, more durable, and more readily repaired, when worn away to a certain extent, than bear ings hitherto made for this purpose; and also to provide for keeping the spindles well lubricated without requiring frequent renewal of the oil. f

The nature of my invention consists- I. In constructing the hard metal holsters or upper hearings of the spindles of spinning-frames with separated removable soft metal bearings, and with an oil-chamber between these bearings. The oil-chamber in thebolster is enclosed, and is formed by inserting short bushings of Babbitt or other durable bearing metal into the bore of the hard-metal bolster at each end.

7. It consists in constructing the steps of said spindles with two or more separated bearing surfaces, and with an oil-chamber between such bearing surfaces. The oil-chamber is formed by casting the step with a con,h tracted throat, and with an opening in its bottom, and introducing a short socketed block of Babbitt or other durable bearing metal into the step from below, all as hereinafter described.

3. It also consists in the combination of a step which is disconnected from the bolster, and has an upper and lower removable bearing, with a bolster which has an upper and lower bearing, and with the spindle of a spinning-frame, all in such manner that the spindle is kept steady, oiled eifectually, and the necessity of making the` step proper with a removable cap is obviated.

To enable others skilled in the art to understand my invention, I will describeits construction and operation.

In the accompanying drawings, gs. I and 2, A represents a portion of the spindle-frameV and B aportion of a spindle passing through a bolster or upper bearing, which is supported by said frame. This bolster consists of a cylindrical stem, a, terminating at its upper end in an enlarged cup, which forms an oil-receptacle, and also a shoulder for sustaining the bolster upon the frame A. The exterior form of the holsters resembles those which have been used before my invention. These bolster-shells I make of cast metal, or of wrought metal turned in the proper form, and make the holes through their stems a considerably larger in diameter than the diameter ofthe spindles for which the holsters are to be used. I then introduce into the ends of the stems tubes e e', 'made of a much smoother metal or material than that of which the shells are formed; brass, Babbitt metahY or other suitable metal or alloy may be used for this purpose. 'The two tubes, c c, leave an annular chamber, e, within the bolster, for containing apiece oficloth or other suitable substance which will absorb oil and lubricate the spindle. The upper end of the tube c projects above the upper end of the bore of the stem a, and forms, in conjunction with the annular lange or cup a chamber which surrounds the spindle and receives oil for oiling it above the chamber/e. The notch f, through the upper end of tube c', allows the oil to dow to the spindle. The tubular lining or bushing may be secured in place in the bolster in any suitable manner which will admit of its removal when too much worn, and the insertion of a new lining. By leaving a chamber, e,.

within the stem of the bolster, I not only obtain a receptacle for oil and' a piece of cloth, which I have indicated by red lines, but I also diminish the friction surface upon the spindle, and cause the spindle to run with more freedom and with less expenditure of driving power than would be the case if 'a continuous bearing 'was used, as shown iii g. 3. The chamber e will keep the lower end of the bolster supplied with oil, and keep the bolster comparatively cool when driven at a very high degree of speed. The chamber or cup, b, with its oil, will keep the upper end of the bolster lubricated and cool. To prevent a too rapid escape and consumption of oil, I insert into the chambers pieces of cloth, which will allow the spindle to take the required quantity of oil and prevent waste. In fig. 3 I have represented a bolster which is lined inside with a smooth or soft metal or other substance,

to prevent rapid wear -of the spindle and to lessen friction, and'to admit of the renewal of the lining whennecessary, but which has no interior oil-chamber, In iig. 4 I have vrepresented a bolster which is constructed with an interior oil-chamber, e," but which is not lined. This bolster is made of one piece'of metal, and has no soft metal lining. In iig. 5 I have represented a step for the lower end of a spindle, which consists of an outer shell, y, into the lower end. of which is inserted the step-block h, so as to form above it a chamber for the reception of oil and a cloth packingA The step his m-ade ofhrass' or other metal which will he less wearing in its effect upon the spindle than the metal of whichthe shell g is formed, and it may he removed when desired and a new block inserted in its stead. The upper end of the shell g is cupped andfcontracted around the spindle, as at m, so as to close the top of the oil-chamber when the spindle is seated upon the block h, and thus keep out dust and also aiordan upper or second bearing in the step proper. Within the oil-chamber in the shell g, a piece of cloth is put which will absorb most of the oil and supply it to the spindle in the required quantities.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The hardmetal bolster a, with .oil-chamber e, and separated removable hearings e c', substantially in the manner and for the purpose described. 4 v

2. The spindle step g a m, constructed in the manner and for the purpose described. l

3L The combination of the bolster a c c e, step g 71, m, and spindle B, substantially-in the manner and for the purpose described,

' BARTON H. JENKS.

Witnesses: v WILLIAM' DoBsoN, JAMES HUGHES.

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