US149475A - henry - Google Patents

Description

' Patented April 7,1874.

1,1.HENnY- MiIIA-Spi-ndles.

`ivrrnn STATES PATENT @Errea JOHN J. HENRY, OF BALTIMORE, MARYLAND.

IMPROVEMENT IN MILL-SPINDLES.

Speciiication forming part of Letters Patent No. 149,475, daed April 7, 1874; application iled To all whom it may concern:

Beit known that I, JOHN J osnrn HENRY, of Baltimore, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Mill-Spindles; and I do hereby declare the followingto be a full, clear, and exact description ot' the same,

. section, showing the removable cock-head and the lubricating devices.

4Similar letters of reference in the accompanying drawings denote the same parts.

My invention relates to improvements in mill-spindles, which may be applied to other vertical shafts; and consists, first, in the employment of a removable socketed toe, fitting over the lower end of the spindle, and having its bearing in a screw-threaded socket attached to a hemisphere, the latter having its bearing in a sim` arly-formed socket, as described in Letters atent N o. 137,445, granted to me April l, 1873.V The-object ot' making the toe removable is to replace it, when worn, by another toe. My invention further consists in the employment of a removable cock-head, on which the balance-rynd rests, which can readily be detached when worn, and replaced by another cock-head. My invention also consists in the employment of sliding wedge-shaped bearin g-bloclrs,havin g their inner surfaces concave to embrace the spindle, and itting in correspondingly-tormed grooves in a collar surrounding the spindle, and covered by a cap having an inclined upper surface, to prevent the ingress of dirt and grain, the wedge-shaped bearing-blocks being adjustable vertically by set-screws or their equivalents, to prevent lateral play of the spindle, `and compensate for the wear of the latter. My invention further consists in the employment of certain devices for lubricating the mill-spindle, as hereinafter more fully set forth. l

In the accompanying drawings, a represents a mill-spindle, the lower end a of which is in- February 2l, 1874.

serted in the socket of a removable toe, b, which is stepped in a socket, f, having its outer surface screw-threaded, to engage with a female screw in the hemisphere g,- the latter having its bearing in a hemisperical recess in the block h, which supports the spindle, as described in Letters Patent No. 137,443, granted to me, and dated April 1, 1873. The removable toe b is attached to the lower end of the spindle by means of lugs on the spindle, which engage in notches or recesses in the upper end of the toe, orby any other similar means, by which it can be readily removed and replaced.

By this construction, it will be seen that, when the toe is worn, it can readily be removed and replaced by another toe.

M M .re the millstones, the upper stone, M', being movable, and the lower one, M, stationary. c is a cock-head, provided with a socket in its lower end, which iits over the upper end of the spindle, and is attached thereto by lugs on the spindle, which engage with recesses in the lower end of the cock-head, or other equivalent means. cl, Fig. l, is a crosssection ot' a part ofthe balance-rynd, the arms not being shown in the drawing; and eis a similar section of a part of the driver, its arms not being' shown in the drawing. The ends ot' the arms of the driver and the ends of the bail are made to enter recesses in the upper movable stone M', in the 'usual manner.

It will be perceived by rendering the cockhead c removable it may be detached readily when worn, and a new one substituted for the worn one.

The eye of the stationary millstone is bushed or filled with wood, as seen at o, in which is inserted the collar u, surrounding the spindle, and provided with horizontal arms z z, pro vided with holes, in which are inserted screws s1 s1, which are screwed into the wood o, thereby securely attaching the collar n to the eye otl the lower stationary millstone M. m m are wedge-shaped bearing-blocks, made concave ou their inner surfaces to embrace the spindle, which they surround.

m it in correspondingly-formed wedgeshaped recesses in the collar u, and are vertically adjustable in the recesses by means of screws s s, the heads of which bear against the lower ends of the bearing-blocks, fit into openings s2,

The bearing-blocks m (see Fig. 3,) and pass through female screws made in perforatiens in the lower end of the collar n. The screws s s are situated obliquely to the spindle, or in line of direction of the wedge-shaped bearing blocks on, and their lower ends are made without a screw-thread, so that a wrench may be applied to turn them when it is desired to adjust them.

By this construction, arrangement, and adjustment of the'bearingblocks, it will be seen that compensation may be made for any wear of the spindle around the collar, thus enabling the operator to prevent any lateral displacement of the spindle.

p is a cap, the upper surface of which is in'- clined, to prevent the ingress of grain or dirt into the eye of the lower stone, and which,

' from its inclined position, serves to guide the grain toward the space between the millstones. The side faces o of the cap p are cylindrical in form, surround the collar a, and are inserted in the wood o in the eye of the stationary stone M. WV is a sleeve surrounding the spindle, securely attached thereto, and revolving1 with the spindle. The upper end of the sleeve YV is provided with a recess, r, for oil, (see Fig. 4,) which is introduced therein through the tube t, passing up through the eye of the movable stone M. r2 r2 are oil-passages, any desired number being employed, through which the oil passes into the oil-passages r1 r1, bent right-angularly at their lower ends, by means of which construction oil for lubricating the spindle is introduced between the collar and the sleeve W attached to the spindle. i is a pinion, to which the motive power is applied to rotate the spindle, and with it the stone M, attached thereto.

I claim as my inventionl. The removable socketed toe b, tting over the lower end of the spindle, and secured thereto by a detachable fastening, substantially as described, and for the purpose set forth.

2. The removable socketed cock-head c, fitting over the upper end of the spindle, and secured thereto by a detachable fastening, substantially as described, and for the purpose set forth.

3. The collar n, provided with'wedge-shaped recesses for the reception of the wedge-shaped adjustable bearing-blocks m m, in combination with the cap p o', having an inclined upper surface, substantially as described, and for the purpose set forth.

4. The cap p o', having an oil-tube, t, attached to its upper inclined face, in combination with the oil-recess r and the oil-passages r2 r1, the whole arranged, constructed, and operatin g substantially as described, and for the purpose set forth.

JOHN J. HENRY.

\Vitnesses NATHAN K. ELLswoR'rrr, MnLvILLn CHURCH.

Images