Improvements in Bolting Machines.
Year: 1893

page_text: Date of Application, 5th Sept., 1893-Accepted, 11th Nov., 1893
COMPLETE SPECIFICATION.
Improvements in Bolting Machines.
I, ERNST AUGUST WEINHOLD, of Rue du Canal, 124, Louvain, in the Kingdom
of Belgium, Foreman-miller, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to improvements in bolting machines and consists of a reel
covered with silk or wire gauze through which is granulated material previously
reduced. In order that the said gauze will not become choked, a blowing device is
arranged to rotate in the reel and mounted eccentrically to its axis in close
proximity to the said gauze which blowing device sucks the particles fast out of
the gauze without damaging it.
Heretofore stationary or rotary brushes have been employed inside or outside
the bolting reel, all of which were pressed against the gauze, which causes the
latter to wear rapidly and necessitated the brushes being provided with an
adjustment in order to enable to regulate the amount of contact between the gauze
and the brush. In this invention I set air and the said gauze in agitation through
the rapid rotation of a shaft covered with bristles, pins, wings, or the like, and thus
effect the cleaning of the gauze.
And in order that my invention may be more fully understood I have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 is a longitudinal section, Fig. 2 a cross section of my improved bolting
machine.
Fig. 3 is a longitudinal section, Fig. 4 a cross section of the bolting reel having
a blowing device consisting of a shaft furnished with bristles.
Figs. 5 & 6 are modifications of the said blowing device.
a is the reel, 6 the gauze, the former being mounted at each end in the
bearings c, c. Through the front end a' passes the feed worm d which conducts
the material from the hopper e into the reel. Through the reel a passes the shaft f
mounted in the bearings f,, and furnished with the strap pulley g, which sets the
said shaft in rotation. A second pulley g¹ drives the pulley on the shaft h¹ of
the worm h. On the worm shaft is fixed the chain wheel k, which by means of
a chain and chain wheel k¹ fixed to the reel a rotates the latter. The relative
speed transmitted is so proportioned that the worm runs slower than the shaft f
and the reel a slower than the worm h². From the shaft a is suspended by a
number of arms l, which may be tight together, a shaft m furnished with bristles,
fibres, plates, pins of wood, metal or of any other suitable material.
In lieu of suspending the blowing device it may be retained in any other position
in the reel, by einploying counter weights. The length of the bristles, fibres, or
wings is such that the same clear the gauze surface a short distance.
On the shaft is a cord pulley, a strap pulley, a tooth wheel, or its equivalent, n
which transmits motion to a corresponding pulley or wheel n¹ on the brush shaft m
in order to set the latter in rapid rotation.
The material falls from the inlet e, through the medium of the worm d, into the
reel a which is covered with gauze. In the drawing annexed the gauze is shown
as of one size of mesh, but it will readily be understood that gauze differently
meshed may be used, the collection trough below the reel a being then formed with
several compartments and outlets.
The rotation of the reel a causes the material to meet always a fresh bolting
surface and to always keep it open, i.. not choked with small particles which
become fast in the mesh, a blower is caused to rotate in the reel in such a manner

page_text: as not to touch the gauze. Through the rapid rotation of the brush gusts of air
are produced which on the one hand agitates the gauze and on the other presses
through or sucks up the small particles which have become fast in the mesh, thus
cleaning the latter.
It being necessary to cause the material to travel in the reel towards the outlet
thereof, is best to incline the reel a little towards the respective end, the material
in the reel then taking a zigzag course towards the outlet o, whilst the material
falling from the gauze is collected by the worm h² and conducted to the outlet p.
In order that the particles removed from the gauze by the blowing device will
not immediately fasten themselves again, the same is formed by preference worm
like, as shown in Fig. 1, the said particles being then at once conducted to the
outlet.
It will be of advantage to employ the blowing device in the lower part of the
reel, however it may also be employed in any other position.
In lieu of one blower, several may be employed, one however will be found
quite sufficient.
This machine is principally adapted for milling purposes for reducing granulated
grain to flour, dunst middlings or groats, but it may also be used otherwise where
reduced material requires sieving.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is-
The employment of one or more quickly rotating shafts which are furnished with
bristles, fibres, plates or pins of wood, metal, or of any other suitable material and
are mounted in such a manner eccentrically to the axis of the reel that the same
take up a fixed position in the reel, substantially as and for the purpose
set forth.
Dated this 4th day of September 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.