Improvements in Bolting Reels for Milling Purposes.
Year: 1890

page_text: Date of Application, 25th Mar., 1890-Accepted, 2nd Aug., 1890
COMPLETE SPECIFICATION.
Improvements in Bolting Reels for Milling Purposes.
HERBERT JOHN HADDAN of the firm of Herbert & Co., Patent Agents of
18 Buckingham Street Strand W.C. in the County of Middlesex Civil Engineer do
hereby declare the nature of this invention a communication to me from abroad by
James Brody Dobson of Cleveland, State of Ohio, United States of America
Manufacturer 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 reels for milling purposes
and it consists in certain features of construction and combination of parts herein-
after described.
In the accompanying drawings Figs. 1 and 2 are end elevations respectively of the
tail end and head end of the machine. Fig. 3 is an elevation in longitudinal section
taken on bent line. Fig. 1. Fig. 4 is a plan of one of the reel heads detached.
Figs. 5, 67 and 8 are enlarged views in detail of the slides or gates for the conveyor
trough. Fig. 5 being an end view of the slide or gate and Fig. 6 being a side view
in section of the same. Fig. 8 is a side view of the ways for the gate and Fig. 7
is an elevation in transverse section of the same.
The casing of the reel comprising the top bottom and side walls are usually of
wood, these members being secured to cast iron end plates A A these plates
being in the main alike but the entire casing is divided on a horizontal plane
coincident with the driving shaft into top and bottom sections the former
serving as a cover that may be removed to give access internally to the machine.
B is the driving shaft and C a counter shaft both shafts extending, lengthwise
through the machine and projecting some little distance at either end of the machine.
Shaft B at the head end of the machine is provided with driving pulley B₁ and with
sprocket wheels band at the tail end of the machine this shaft is provided with
sprocket wheel 2. Shaft C at either end thereof is provided with pinions C and at
the head end of the machine this shaft is provided with sprocket wheel e the latter
being connected by means of endless chain c¹ with sprocket wheel aforesaid,
by which transmitting mechanism, the counter shaft is driven from shaft B. Sprocket
wheel is for driving the brush shaft F and sprocket wheel is for driving the
conveyors G G.
The conveyor shafts are provided respectively with sprocket
wheels G and these are connected in common by endless chain G with sprocket
wheel of the driving shaft, sprocket wheels G₁ and 2 being usually located at the
tail end of the machine. The journal boxes for shaft F are constructed each as shown
more clearly in Fig. 1a box being pivoted at and having a curved slot in which
operates a securing bolt by which arrangement the brush shaft F may be adjusted
in the direction towards or from the reel. This brush is of ordinary construction and
therefore not shown. Shaft F is provided with a sprocket wheel the latter being
connected by chain F2 to sprocket wheel . Also is provided a tightener F³
for taking up the slack, of this chain. As the brush wears away, shaft F from
time to time is adjusted nearer to the bolting cloth. The end members of the casing
adjacent the reel are cast with double walls A A', the inner and outer walls being
separated some inches to provide chambers A². Opposing walls A A¹ are connected
at the sides and bottom of the chamber by webs A. These chambers above are closed
by woodwork. A feed spout a discharges into chamber A that is located at the head
end of the machine, and at the tail end of the machine a hole a' cored in web A³ and
located at the bottom of the chamber is for discharging the tailings from the reel into
spout a².
Walls A A' are bored to receive the heads of the reel these walls
constituting the journal bearings for the reel head. Each reel head is constructed as
follows is a metal disc that fits in the bore of wall A and E' is a metal ring that

page_text: fits in the bore of wall A¹. The disc E and ring El are cast integral with the con-
necting bars E2 these bars being located at or near the periphery of the the ring and
dise. The hubs E³ of discs E E constitute journal bearings for the driving shaft B.
Walls A A¹ are grooved internally at a³ and discs E and rings E' have peripheral
tongues e that respectively fit in these grooves, whereby a tight joint is had
that prevents the escape of dust from the reel. To each ring E is attached a wooden
ringe for fastening the end of the bolting cloth H. Connected with and extending
from one ring E to the other are a series of light wooden bars e² with rounded edges
and attached to these bars and located at suitable intervals are a series of hoops H' for
distending the bolting cloth, the hoops and bars being supported. by spiders the latter
being mounted loosely on the driving shaft B. Mounted on the driving shaft and
located between the different spiders are three armed spiders I secured to the
driving shaft by means of set screws and arranged as shown in Fig. 3. in series
of three between adjacent spiders hh. To the extremes of these spiders I are attached
flexible brushes and flexible agitators. The agitators and the body of the brushes are
constructed preferably of strips of belting say two inches wide more or less with the
bristles of the brushes standing edge wise of the belt so as to present toward the bolting
cloth. The one spider 1 of a series is first fastened to the shaft, after which the other
spiders of the same series are turned on the shaft and then fastened to give
the desired spiral trend to the brushes and agitators whereby the material is fed
through the machine, not so much by the direct action of the brushes and agitators as
hy the spirally moving current of air set in motion by the brushes and agitators
revolving at high speed. Such spirally moving current of air holds the material
suspended and causes the latter to sweep around and along the internal surface of the
bolting cloth, the centrifugal force of the material causing it to constantly engage the
bolting cloth with a sliding contact relative to the cloth that is very effective
in bolting more especially as the entire inner surface of the bolting cloth is constantly
engaged by the material, brushes meantime sweeping the inner surface of the
bolting cloth and the brushes of shaft F cleaning outside of the bolting cloth.
A small wheel B2 of the propeller variety is mounted on shaft. B. and operates
in chamber A2 at the head end of the reel for discharging the material from
this chamber into the reel. Discs E are provided with spur gear D that engage
intermediate pinions d these pinions in turn engaging pinions aforesaid from
which construction it will be seen that the reel is driven from both ends so that
the reel is not subjected to any partial strain and from the relative sizes of the
transmitting mechanism the fast movement of shaft B is reduced to a comparatively
slow movement adapted to the reel. The material passing through the bolting cloth
falls upon the sloping wooden sides a and from thence discharges by gravity into the
conveyors, two of which are employed and an upright wooden partition g separates
the two conveyor boxes.
A series of angular slides or gates J are provided for directing the material into the
one conveyor or the other or for distributing the material to the two conveyors as the
case may be and according to the adjustment of these slides. The construction of
these slides is as follows, the material employed being usually ordinary sheet tin.
Slides J are of the angular variety as shown more clearly in Fig. 6, the ends thereof
being attached to side pieces J2, members J extending below the side pieces the lower
edges thereof being bent towards each other as shown at J. The side pieces extend
above the apex of the slide and are bent over, hook shaped towards each other,
as shown at J³. For supporting the slides strips of tin are bent in the form shown
in section in Fig. 7 the lower edges thereof being bent towards each other hook
shaped as shown at j', the tin being slitted and flanged outward at the end sections as
shown at these flanges being secured to the sloping side walls a aforesaid. The
hooks engage hook J3 of two contiguous slides and hence a member ; covers
the joint between contiguous slides. Hooks Jare adapted to engage partition g and
thereby constitute stops to prevent the slides from being too far in either direction.
When the slides are adjusted so that the apices thereof are located midway laterally of
the space between sides a³ a³ the material will be distributed equally to the two

page_text: conveyors. By shifting the slides in the one direction or the other the material is
directed into the one conveyor or the other. The object of the two conveyors and the
slides is to assort the material if desired. For instance if two grades of bolting cloth
were applied to the reel in which case of course the finer bolting cloth would be
applied nearest the head end of the machine. In such case by shifting the slides the
finer material is discharged into one conveyor and by shifting the slides that are under
the coarser bolting cloth in the opposite direction, the coarser material is directed into
the other conveyor.
I will add that heads A' of the conveyors are renovable so
that the conveyors may be assembled or removed by simply removing these heads.
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
1. The combination with bolting reel and shaft substantially as indicated of flexible
brush mounted on such shaft and adapted to engage the bolting cloth such brush
having spiral trend or lead substantially as set forth.
2. The combination with bolting reel and shaft substantially as indicated of one or
more flexible agitators mounted on such shaft such agitators having spiral trend or lead
substantially as set forth.
3. The combination with bolting reel and shaft substantially as indicated of flexible
brush and one or more flexible agitators mounted on such shaft and adjustably secured
to the latter such brushes and agitators having spiral trend adapted to feed the material
lengthwise of the reel substantially as set forth.
4. In a bolting reel the combination with casing having metal heads bored to fit the
respective reel heads, the edges of the casing heads having internal circumferential
grooves of metal reel heads adapted respectively to operate in the heads of the casing
such reel heads having peripheral tongues adapted to fit the grooves of the casing
heads substantially as set forth.
5. In a bolting reel in combination, double walled mutually engaging metal casing
heads and reel heads substantially as indicated the engaging edges of these heads
being tongued and grooved for mutual engagement substantially as set forth.
6. In a bolting reel the combination, with a casing a reel mounted at its ends in
bearings formed in the casing of a rotary shaft supported in bearings formed
in the reel heads of gearing connecting the shift and reel and brushes secured
on the shaft and engaging the internal surface of the reel substantially as
set forth.
7. In a bolting reel the combination with casing, a reel mounted in bearings
formed in said casing and a shaft mounted in bearings in the reel heads of flexible
brushes and flexible agitators secured on the shaft substantially as set forth.
8. In a holting reel the combination, with a shaft, a reel surrounding the shaft and
supported in bearings formed in the casing and gearing connecting the reel and shaft
whereby they are rotated simultaneously but at unequal rates of speed, of a feed trough
leading to the reel at one end, a discharge spout leading therefrom at the opposite
end and brushes secured to the shaft and engaging the internal surface of the reel
said brushes having spiral trend or lead substantially as set forth.
9. A bolting reel substantially as herein shown and described.
3000
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.