Page:Scientific American - Series 1 - Volume 013 - Issue 28.pdf/1

 THE ADVOCATE OF INDUSTRY, AND JOURNAL OF SCIENTIFIC, MECHANICAL AND OTHER IMPROVEMENTS. b#

VOL.

XIII. THE PUBLISHED WEEKLY

NEW YORK, MARCH 20, 1858. GEIB'S IMP:s.OVED FLOUR BOLT.

NO. ,28.

SCIENTIFIC AMERICAN, At

No.

128

O. D. lKUNN, S. H. "VALES, A. E. BEACH.

Fulton stn:.et, (Sun �Buildlng8,) Nell'York, B"t" MUNN &; CO.

Low S the AmeriCl Booksellers, tho British Agent. receive-Jubscr ptions the Single-copies of the1):'?er are on.salo at the omce of J' : 1 eriodical staree in this city, ':!:t;: e it Slid the �l'CDlainder in l!Iix U16Dths. IY" Seo Prospectus on last page. No Ageuts employed. advancet

Prlfpls :ar., :":Ut:

all the Sampson. on & Co., 47 Ludgate Hilil London, Eng., are to for ScIENTIFIO AMERIO,'N.

TERMS-Two Dollars per anumD.-Ono Dollar III

Traveling

with seeing spots, like flies, moving before jeots. their eyes, especially in looking at bright ob These spots have been called by "the

Persons in growing old are often troubled

Spots

In

the Eyes.

object,

head suddenly, and fixing the eye upon an

p.rofession"

muuae

voljtantea. After raising the

Dr. Mackenzie, in his elaborate work on the eye, describes these as resembling

the muscae appear to descend gradually.

twisted semi-transparent tubes, partially filled with globules, which sometimes motion, but reaIly have no motion indepen

minute

appear in considers

dent of thll ball of the eye, and the vessels of the retina.

that the globules are blood passing through Many persons frequently notice the mil.scae

he

nervous persons are very often frip;htened at

upon snow on which the sun is shining, aud beholding them, because they are gcncrany

t'olitanles in their eyes, especially in looking

or amourosis. nomenon.

considered a disease, and forerllnner of cataract comfort to many persons regarding this phe From late experiments he

Sir David Brewster gives some

the eyes have no connection with mentioned.

come to the conclusiou that t.he spots seen� by "This valuable resnlt," he

has

" hns been deduced from Il econdite property

tho diseases says,

mllscae

veloped in our day."

of divergent light, which has only been de He also asserts that the eral phenomena present themselves to

t'olitantes are harmless, and their gen

night by looking at a candle through a lens of short focal length. the luminous field is seen covered with twisted When In such

pinhole in a piece of brass or cnrd, and at

he states, by looking

and young.

eyes of evory person he has examined-old

the

They may be seen in daylight,

at the sky through

a

The special

observations

tubes filled with globules in motion. place, they are not t he mmcae

bolt, and 8ll keep the superior portion free it speekled.

meal, good and inferior, in one and the same

to avoid the necessity of

object

of this improved bolt is

rebolting all the

blac'k spots are seen by the eyes, not changing insensible spots in the retina, and are just sources of alarm as symptoms of amourosis. A few years since, we remember of a para person ill

from the substnnces which <lark en it and make

volitantes, but

the newspapers regarding sme

graph which was quoted very extensively in

which the atmosphere is supposed to be com posed, in the form of small transparent glob plate in the bright sunshine.

France, who was enabled to see the atoms of

discharged separately from it.

To the bottom of the chest, A, and underneath rior boltings of D pass throngh h into a proper ferior boltings of the first bolt are fed into the the elevated end of its bolt, C, there are at- receptaole, and the second quality passes' second bolt, certain portions of the boltings of tached two spouts, c d, each having a slide, e, through the spouts, i, into J, and then through which are mixed, and others aro allowed to be nt its top. Spouts, ff', are also attached to K into H again, where it is again carried up tors and conveyers, so arranged� that the in graving, which is a perspective view of the be fully understood by reference to the cn machine, All this will the bottom of the chest below the depressed end of its bolt, and these communicate with the bottom of the elevator, H, lInd a. spout, them to the elevator. dlings" passes through quality the above description it to be rebolted, and the third quality or " mid

of two or moro bolts in connection with elevl

This il done by the employment

2 shows a section through the top of of flour passes down into a proper receptacle in front through the spout, 0, and the second quality of th!l bolts, so as to feed the meal at their cle- through d. Th e inferior qualities pass down YBted epds. At the bottom of eaeh box, A B, through f f into the bottom of H, together there is placed longitudinally a conveyer, I, with the "tailings" of bolt C. T he se inferior they l'e limply shafts, b, having knives or_ qualities are fed into the elevated end of D by pins, a, plnced on them In a spiral direetion. II through-an inclined spout, A". The supe one of tho clevators, which are placed

Fig.

ules, by looking through a pinhole in a metal

period, a person came from some distance to It was a long dark

About that

show its construction.

with parts

of

the sides removed te

receives the "tailings"

of b<flt, C,

proof of this discovery.

our olllce, and exhibited what he consiclered a

end, by looking through which, these globules however, were not the I).toms of ail', but the could be distinctly seen in motion.

paper tube, with a very minute pinhole in its

ends of both may be adjusted higher or lowel', tion by having nuts, E, ing are connected. 80 as to give them a greater or less inclina

considerably larger than

ated in the usual manner.

stands, containing bolts, C D, made and oper

A 'B arc two rectangular boxes on suitable The bolt, D, is

chest, B, and under the elevated end of its bolt, spouts,

To the

and delivers bottom of

g,

D, there are spouts, h, i, i, i, i, and is now the case,

will be seen that the meal is not rebolted in C, and in consequence the fine or fancy flour will not be speckled as through the bolt in rebolting, and the will be from fine bran passing

or

"ship stuff"

j j, and the throughj'j'.

fourth

From

C, and the deprQssed which are on screw

They,

munic&te with a box conveyer,

pressed end of the bolt.

j, j, j' j',

are attached under the de-

J, the lower part of which is connected to the The operation of the machine is as follows: from the stones passes into

containiLlg

The apouts,

a conveyor,

i, com-

tured.

mueh superior to that now manufao

flour

muscae volitantes, as has since been demon strated by Sir David Brewster. The muscat lIre generally invisible in ordinary light j it is only by divergent light, such as that 11' hich diverges from a small aperture, that t hey are witnessed.

rods,

F, to which the lower

over hand pulleys, and placed within trunks or boxes.

vators of the common construction-that is,. lower part of elevator, G, from which it is buckets are placed on endless belts and passed carried into the elevated end of C through an inclined Ipout, A'. by belts in

G H are two sets of ele

ends of

the bear

H, by means of a spout, K.

The meal

the

to' furnish any further information. tained a patent on Jan. .. t., ..

Geib, of Mifflintown, Pa., who will be happy

The inventor of this flour bolt is Da vid

5, 1858.

He ob

the usual way.

Both bolts being rotated

The finest quality

bel' about 1),000,000, in all North America.

I ndian blood

A CAREFUL. estimate of all the persons

indieates that they now num

of

� 1858 SCIENTIFIC AMRICAN, INC.