US105496A - Charles schneider - Google Patents

Description

l have invented an- Improved Mode Dressing Millstone's;

lowing to be a full and exact description of the same,

Ahung in the-usual manner.

f dle to the runner.

Zine-na sans gaat cypra Letters Parmv0.1o5,4cc,daaa .my 19,1810.

IMPROVEMENT IN HANGING -IIVIILL-SLON'IElS.

The `Selinunte referred to ln theseLettots Patent and making part of the lame. r

To all whom it may oon-cern Y Be it known that I, CHARLES; SGHNEIDER, of Galion, in the` county of Crawford and State of Ohio, of Hanging and and I do hereby declare the folreference being had making part of this specification.

My method of hanging stones applies to that class of mills in which the under" stone is the runner, and one important feature of my invention consists in sccnring Vthe upper end of the' spindle toa'cast-iron bedplate, in which `the runner'is securely fixed, thus making a stil hanging7 for the stone.

Another important feature of my improvement conto the accompanying drawing sists in the manner of connecting the driving pulleyrr (which turns loosely on the spindle) to the bed-plate of the runner, by means of Asuitable springs, one end of the said springs being secured to the under side of the `bed-plate, andthe other to the rim of the driving .pulley,rthus removing all the` torsion or twisting strain v,fronrthe spindleand transferring it to therunuer at a distance from the center of rotation corresponding to 4 the radius of the pulley.

Another important feature of my invention consists in trning the spindle by means of' tripple boxing provided with set-screws, s o that it may be adjusted to run truly vertical. A This `boxing is so placed that it may be oiled when the mill is running.-

Another important lfeature of my invention consists iu the manner ofbalancing ,the stone when not running, and before the spindle is secured thereto, so'that it maybe in stauding balance7 and also in running balance, which is `not generally the case with stones Another'important 'featureof my invention consists in the peculiar mode of dressing the stones. ln my mode of dressing, leading furrows are dispensed'with,

, and but twelve short furrows, extending only through .the s kirting,.are used. fur-rows, and the eye of the vstone is left for grinding No draft is given, to-thc surface. A complete descriptionof this mode of dressl ing will `be given further on.v

Figure 1 is a plan cr bottom view ofthe mill, showing the driving-pulley and mode of securing the spin- Figu're 2 isv a side elevation of the same. Figure 3 isa planof4 the adjustable spiudlefbcaring. 1

' Figure 4 is the plan of a stone, showing the manner of dressing. .l v Figure is a side view of the runner, partly breiten` l away to show the mode of balancing thestcne ou the spindle.

and lowering the runner, all of which are arranged ill the ordinary way. Y

The runner D rests on a cast-iron bed-plate, E.'

The spindle F (usually of steel) has a cap or coupling-flange, b, cast on it, by which it is rigidly secured 'to the hed-plate, the latter being provided with a boss, 0, to receive the securing-screws or bolts, as shown.

Projecting lips or flanges, d d, are cast on the under side of the hed-plate, between which are secured the upper euds of the springs G G, the lower ends of the said springs being secured to the verge of the loose driving-pulley H in a similar manner. 'By this ar-y rangement the inertia at start-ing, and cheeks'while running, are overcome much morc-1`eadily than iu. the ordinary way of using springs, as theleverage is greater, and all extra twisting strains on the'spindle are eutirely avoided.

` The spindle is stepped at the bottom, as shown, and is provided with a bearing for lateral adj ustmeut, which` may be placed immediately under the driving-pulley. .This bearing is shown in plan in fig. 3, and consists ol' a radial frame, I, provided with triple boxing, e e sliding in suitable openings iu the said. frame, shown, and capable of"heing adjusted laterally by'-` means ofxset-scrcws, f f f, or other equivalent devicel,

By this arrangement the spindleniay be vertically adustcdsor lumbed with the greatest nicety.

Before the boss c of -the bed-plate is bored te refl ceive the screws by which 1t 1s attached to the spin-1 die, a balancing-pin, g, isv inserted in a hole in th/ecentcr of the'runner, the other cnd f lthe said Apin resting in a hollow in the' upper end of the spindle., As the hole in the runner and through the bed-plate, to which the runner is secured, is larger than the balancing-pin, the stone may be moved suliicieut to balance itaccu-V rately. The boss c is then marked, and the holes bored Vto correspond with those in the cap of the spindle.

The runner is .then raised audthe pin g removed.

lhe spindle is then secured to the ruunelyandthe stone is in balance, both standing and running. In my mode of dressing millstones, I 'discard all leadingfurrows, cut-ting only twelvevshort furrows,

which leaves all that portion of the storie technically called the eye for grinding surface. I give the furrows no draft, but radiate them from the center of thestone.l 'i

In the mode of dressing in common use, the back ofthe furrows cre cut perpendicular tothe face of the stone, or nearly so, and are quite deep. This causes the Hour to pack and glaze in the furrow, which heats and injures it. I avoid this by cutting the furrows much wider and about half as deep as usual, and giving th'e back an angle very acute with the face of the stone.

By leaving the eye of the stone free from furrows, the grain is deprived of its hull before it isground, thus givinga greater yield of our than when the hull and grain are ground upv together.

The result in stones dressed by my mode is almost whglly bran und flour, very little "shipstui" being ma c.

I do not claim, exclusively, the use of springs; but

Having thus described my invent-ion;

What I claim as new, and desire to secure by'Lettels Patent, is

1. The bed-plate E, snrroundingthe.bottom of the I runner and having a projecting boss lor hub, c, in

combination with the'spindle F, with its ange'b, secured to the said boss 0, in the manncrand for the purpose herein specified.

2. The springs G G and driving-pulley H, loose upon the spindle F, in combination with the bed-plate E vof the runner D, substantially as and for the purpose herein set forth.

3. The construction and arrangement of the frame I, sliding boxes e e e, and adjusting-screws f f f, in combination with the spindle F, secured rigidly to the runner D by its flange b and the bed-plate E, for the purpose hereinspecified.

4. In combination with the spindle I lange b, arranged to form a sti` bearing for the runner, the balancing-pin g, when used substantially in the manner described, to put the stone in bed-plate E, boss c, and

Witnesses:

HENRY GONNELLY, JOHN R. TEMPERLY.

proper standing'balancc so that it may, at thel

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