Year: 1885

page_text: маслитех.
I BENJAMIN JOSEPH BARNARD MILLS of the firm of Harris and Mills of
23 Southampton Buildings in the County of Middlesex, Patent Agent do hereby
declare the nature of the said invention (a communication to me from abroad by
Charles Paridy, Farmer and Herman August Schroeder Grocer both of East St. Louis
in the County of St. Clair, and State of Illinois, one of the United States of North
America) and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, reference being had
to the accompanying drawings, forming part of this specification, and in which
Figure 1 is a top view of the improved device Figure 2 is a vertical section,
taken on line 2, 2, Figure 1 Figure 3 is a front elevation of the improved device,
Figure 4 is an end elevation, and Figure 5 represents one of the vertical discs
separately.
The invention relates to an improved machine for cutting the sheave bands and
feeding the loose grain to a thrashing machine and the invention consists in
features of novelty hereinafter fully described and pointed out in the claims.
Referring to the drawings A represents a cradle, the forward end of which, is
located at the mouth of the thrashing machine when in use. This cradle is
provided at bottom with an endless travelling apron B supported on rollers B¹
driven from the machine through means of a shaft E' passing through the front
roller and provided with pulleys B³ to receive belts from the machine.
On each side of the cradle is a wing C, provided with an endless travelling
apron C supported on rollers C².
The inner roller of each wing is provided with a bevel wheel D, into which
meshes a similar wheel D¹ on a shaft D* journalled in the body of the cradle.
Meshing into this latter wheel, is a cog-wheel E on the shaft B'. These last
mentioned aprons are thus operated direct from the machine.
The sheaves of grain to be thrashed are thrown upon these aprons, and as the
aprons move in the direction of the arrows, Figure 2 the sheaves are carried
towards the cradle and delivered upon the endless apron of the cradle.
Before reaching the cradle however, the sheaves pass under rotating band
cutters G supported on shafts H journalled in boxes I, secured to the wings of the
cradle.

page_text: These cutters consist of discs which are preferably serrated as shown in the
enlarged view Figure 5 to form cutting edges.
It is preferred to arrange the discs as shown in Figure 2 with a large one on the
inside and a smaller one on the outside; the result being that the bands of the
large sheaves will be cut by the small discs and the bands of the smaller sheaves
by the large discs or cutters.
The cutters are revolved by connection with the shaft B8; the connection I have
shown consisting of an endless chain K¹ passing over a chain wheel K on the
shaft B, and over similar wheels L on the ends of one of the disc shafts H; it
being preferred to use two sets of discs on each wing, as shown in figure 1.
lower part of the chain passes over an idler roller M journalled to the wings of the
cradle, as shown in figure 1.
The
The shafts H of each pair of cutters are connected by cog-wheels N so that a
positive rotation is given to both sets of discs or cutters. The cutters are four in
number on each wing and arranged overlapping, as I have shown them, so that it
is impossible for any sheaf, large or small to pass under them without its band
being cut.
The boxes I in which the shafts H of the cutters are journalled are supported on
arms or brackets, as shown in figure 3, which are secured to the wings of the cradle
by bolts O passing through slots P in the arms or brackets to permit of vertical
adjustment of the cutters or discs.
I am aware that it has been proposed to construct a band cutter of an endless
apron and a superposed cutter rotating in a plane tranverse to the apron or a series
of superposed cutters, rotating in planes parallel with said apron, but such devices
are not the equivalents of my invention, and I lay no claim of novelty in any
feature or features which my device may have in common therewith. It is obvious
that if a single knife is employed it must extend close enough to the endless apron to
sever the bands of the smallest sheaves, and if a knife having such proximity to
the endless carrier, is placed transversely thereto it is evident that the larger
sheaves will coine in contact with the side thereof, and their progress will be
retarded to a greater or less extent.
To obviate this difficulty I employ a plurality of knives increasing in diameter
in the direction in which the sheaves are carried, and to render certain the
cutting of the bands of all the sheaves, I arrange said cutters so that their edges
overlap.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1. In a band cutter, the combination with an endless belt or apron, of a plurality
of superposed cutters increasing in diameter, as described and rotating in planes
transverse to the said endless apron for the purpose set forth.
2. In a band cutter, the combination with an endless belt or apron, of a plurality
of superposed rotary shafts placed parallel with said apron, and a plurality of
cutters increasing in diameter, as described, secured to each shaft, the cutters on
the respective shafts overlapping in the manner and for the purpose set forth.
B. J. B. MILLS.
By Harris & Mills,
23, Southampton Buildings,
Agents.