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Publication numberUS7174 A
Publication typeGrant
Publication dateMar 12, 1850
Publication numberUS 7174 A, US 7174A, US-A-7174, US7174 A, US7174A
InventorsF. Menefee
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 7174 A
Abstract  available in
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Description  (OCR text may contain errors)


Mill Bolt.

No. 7,174. y Patented March 12, 1850.

u ...M a



Specification of Letters Patent No.` 7,174, dated March 12, 1850.

To aZZ whom it may concern.'

Be it known that I, ALEXANDER F. MENE- FEE, of Voodville, in the county of Rappahannock and State of Virginia, have invented certain new and useful Improvements in the Machinery for Bolting Flour; and I do declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification, in which- Figure 1, is a longitudinal section, Fig. 2, is a cross section through X, X, Fig. 3, a cross section through Z, Z.

In the accompanying drawing B and I are bolting chests.

E and K are flour conveyers.

C and H are bolting reels.

F and L, are conveyers inclosed in tight boxes.

z' and y' are spouts running from B, to separate divisions of the packing chest.

Za and Z, are spouts which uniting into one pass over H into L, at any point between the tail of L and f.

Z9, Z), b, &c., are short spouts or pipes passing from B into F. o. a, a, &c., are the mouths in the bottom of B, of z', j, Za, Z, Z), b, b, &c.

c, c, c, &c., are slides fitting closely over the mouths of j, lc, Z, b, b, Z3, &c.

D, is a spout from the fiour elevator into the head of C.

N is a plate, between the inner and outer ceiling of B astride of the shaft of E and under the head of C.

M is a spout from N into F.

O is a spout from B and the tail of C into F.

C is a spout from F into I and the head of J is a spout from I and the tail of to any part of the mill. s

e and CZ, are pipes from the bottom o T. int-o L, e being at the head and eZ, in the middle of I. ZL, is a spout half way between aZ, and the tail of I and passes to any part of the mill.

f is a spout 3 inches nearer the tail of L than the entrance of (Z, and passes to the flour elevators.

g, is a spout from the head of L to the eye of the burs.

C, H, E, F, K, L are hung on gudgeons and connected with the machinery of thc mill by cog wheels. Upon C should be cloth of the finest quality. Upon H cloth of the finest quality from its head to d. Cloth of No. 8 or 9 from (Z, to ZL, and cloth No. 0, from Zz, to its tail.

The defects in the heretofore existing bolting machinery are first, that it does not give any power to regulate, with exactness and uniformity, lthe process of bolting, so that flour of the desired quality may at all times be made, and ofal and bran of the desired description passed off. `Second, that by it, only one quality of merchantable flour could be made at one time. Third, that by it, the fine middlings, which require regrinding and re-bolting, had to be passed off, from the machinery, and when vaccumulated in large quantities to be re-ground'and re-bolted; and the flour obtained from them, not being merchantable, had to be mixed with better flour, reserved for that purpose, by manual labor, so as to be made merchantableda process laborious and often unsuccessful. Fourth, that by it, in the re-bolting of those middlings, the meshes of the bolt, choke and fill up, because there is not bran enough in the middlings to keep the meshes of the bolt clear, and they have to be opened by switching, &c. Fifth, by it, the unbolted flour, blown out of the head of bolt C at D, falls on the shaftor gudgeon of E, and from thence partly into B at z', to the injury of the flour passing to the packing chest, and partly upon the mill floor, from whence it is removed by hand.

By means of my improvements these defects are entirely removed. By the spout .7', placed about three feet from z', power is given to pass through it. Superline flour, at the same time that family flour is passed through z' by its slide c, it can be opened or closed at pleasure, it can be used with advantage only when good white wheat is being ground.

By the two spouts Za, Z (Zr: being about two feet from .7' and Z two feet from 70,) and the pipes Z) Z) &c., control is given over the quality of the flour passechthrough i, or i and y', and likewise over the action and the products of H and over the quality, &c., of that retained over H to The value of t-wo spouts over one, results from the inequalities in the quantity and quality of the flour in B,'occasioned by different speeds of grinding, and by the differences in the quality and condition as to dryness, &c., of the wheat. Zhen the flour in B is good, 7c

will be closed and Z opened, and a larger quantity passed to the packing chest; when the flour is bad Zwill be closed and Zr, opened and less passed to the packing chest,

and when the flour is such, that the opening' over I into L.

The tubes 1, and b2', are placed between z' and y', and ZPS, between and Zz, for the purpose just mentioned. Zr* is placed between Z and Zr, toact on k, and b5, Z9, Zf, Zis, Z2", (which are from twelve to eighteen inches apart) are placed between Z, and the tail of the bolt to act on Z, when it is open or Za, when Z is closed. And these pipes Z9, Z) &c. not only furnish the power over the flour passed through Ze, Z, j, has mentioned, but likewise, give discretionary control, over the action of H, and the quality of its products, (viz: inferior flour, middlings and bran,) by allowing the passage of any portion of the flour in B into F, from whence it passes into H. By the slides c, c &c. over 'the mouth of 7c, Z, b, b, &c. they can be opened and closed at discretion.

As the quality of the flour in chest B varies from the causes stated, and also decreases progressively in richness from the head to the tail of the bolt C, the miller will be governed in the use of these pipes (that is 'determining which he will open and which shut) by the quality of the flour in B, and also by his wishes and purposes concerning the quality of the flour, Sac., manufactured, when the flour is bad, he will open the pipes nearer the spouts open and in use, when it is good he will close the nearer pipes and close those farther from the open spouts. And when he wishes to make superior flour will open the tubes nearer to i, than when he is content to make inferior flo-ur. Another advantage obtained from these spouts and tubes is that the same results can be produced by them as would be the consequence of shortening or lengthening at will, bolt C.

By interposing boxed conveyer F, between, and connecting it as stat-ed with, B and I, and causing the flour passed into F by M and b, Z9, &c. and the bran passed into F by O, to mingle and pass together through G into bolt H, the choking of the meshes of H is prevented and the flour fully bolted, separated &c. By the spout g, the fine middlings are carried to the burs mingled and re-ground with the wheat, and all necessity of their separate regrinding and its consequences avoided. By plate N and spout M the unbolted flour blown from the head of C, is prevented from falling into B, and on the mill floor, and is carried into F.

By means of the combinations and additions afore described the flour in B is separated -at the mill of the miller, and such portion as (and neither more o r less, than) he pleases, is, passed into the packing chest through z', and when the quality of the wheat permits, family flour, through i, and superline flour through j, can be made at one time; and any desired portion of the residue is carried over I, into L by ZL. or Z; and any portion more or less of that residue is poured through Z), b, &e. into F. And in F the flour from b, b, &c., is mingled with'the unbolted flour from l, and the bran. from C and passed through C into I and bolt H where it is thoroughly bolted, the bran through J and the oifal through L is passed off in any desired condition as to richness,

the flour passes through e, into L to min-v gle them with the flour from Zr or Z, and to pass thence through f to the flour elevators, and the coarse middlings through Z into L, and thence through g, to the burs. And the whole process of bolting and separating the flour from its bran and oifal is a continuous and entire act, by machinery and without any of the manual labor before mentioned; and at all times and in every part under the discretionary power of the miller.

The annexed drawings are of a machine with reels of 13 feet in length. The size and proportions of the other 4portions of the machinery must be governed by the length of the reels. When reels of greater length are used no other changes in the machinery besides a corresponding enlargement of its proportions, would be required except an increase of the number of the pipes b, Z) according t0 the increased length of chest B. The several parts of the machine are constructed in the usual manner.

Perhaps statements of a few modes of working this machinery may explain its action more clearly. When grinding rapidly with 2 pair of burs, to make superfine flour with average red wheat, I close spouts y', and Ze, and tubes Zl, Z22, b3, and ZJ, open spout Z close b5, Z2, 57, and open bs and b9, which will make 20 barrels superfine flour outof every 90 bushels of wheat. If the wheat is inferior I also open bl and Z2* &c. Then grinding rapidly with one pair of burs to make superiine flour out of average red wheat I close spouts j and tubes 111, b2, b3, and b4, open spout Zo, close spout Z and tubes Zf, 5G and open tubes Z2?, ZDB and b". If the wheat is inferior, or the speed of grinding slow &c. I open tubes Z2, and b3 &c. Then grinding rapidly to make family flour out of good white wheat, I close tubes Zal, b2, open spout j, close spout Z0, and tubes b3 and b4, open spout Z, close tubes b5, Zi and open ZJ?, Z 8, and Z2, and make family flour through spout z' and superfine through spout j, making 16 or 17 barrels family Hour and 3 or 4 superne out of every 90 bushels Wheat &c.

Many different combinations Will be required and are in the discretion &c. of the miller.

Having thus described the manner in Which I construct my improved flour bolting machine and the operations thereof, What I claim therein as new and desire to secure by Letters Patent is- Y l. The manner here-in stated in Which I have arranged and combined the spouts z', j, lo, Z and tubes b1, b2, Z13, b4, &c., and their slides c, c, c, 0, &c., with each other, and With the bottom of chest B, and With the boxed conveyers F and L, by which complete control is obtained over the quality o-f the flour passed into the packing chest, and also to give a similar control over the quantity and quality of the flour carried from B into L, to be returned through f, to the flour ele* vators substantially as before described.

2. I claim the manner in which I have arranged and combined spouts Ze, Z pipes b, ZJ, Sac., and their slides c, c, c, &c., With each other and With B, F, L and M and O with F and F, with G and H, by Which the flour and bran are mingled in any desired proportion and passed together into II, so as to give complete control over the action and products of H and to prevent the clicking or lling up of the meshes of the bolting cloth, substantially as before described.

3. I claim also the manner in Which I have combined spout eZ, With the bottom of I and top L and g, With the bottom of L and the burs, so as to pass to the burs, such portion of mddlngs as require regrinding, substantially as before described.

4. And While I do not claim as my invention the separate parts of my bolting machinery taken individually I do clalm as new and of my invention, the manner of combining and arranging those parts substantially as before described, so that entire control is given over the process of bolting and now it is made one entire and continuous action and by machinery by which any desired portion of the Hour in the first bolting chest B, is passed through z' or through i and j, into the packing chest; and any portion thereof passed through 7c or Z into L and thence through f, Wit-h the flour from I through e,- to the elevators, and any port-ion at the millers discretion passed through b, b &c., into F, and the flour unbolted from M, the flour from Z2, Z) &c., and the bran from O mingled and passed together in any proportions through G into I and H and there thoroughly bolted and separated Without any choking of the meshes of the bolt, the

bran passed off through J and the offal through ZL, in any required condition, the middling forced through (Z, into L and from thence through g, to the burs to be reground, While the flour is forced through e into L, and meeting with the flour passed into L from Z With it carried through j', to the flour elevators.

A. F. MENEFEE. W'itnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5335792 *Feb 21, 1992Aug 9, 1994Carter Day International, Inc.Grain separator
US7029393Aug 5, 2004Apr 18, 2006Carter Day International, Inc.Split inlet seal for grain separators and method
US7862412Jun 22, 2009Jan 4, 2011Carter Day International, Inc.Seal assemblies for grain separators
US20050032560 *Aug 5, 2004Feb 10, 2005Carter Day International, Inc.Split inlet seal for grain separators and method
US20090318204 *Dec 24, 2009Carter Day International, Inc.Seal assemblies for grain separators
Cooperative ClassificationB07B1/20, A01F12/446