US306759A - Automatic grain scale and register - Google Patents

Description

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' AUTOMATIG GRAIN SCALE AND REGISTER.

No. 306,759. Patented Oct. 21, 1884.

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Parent MOFIS F. KOCH, OF NE\V YORK,

AUTOMATlC GRAlN SCALE AND REGISTER.

SPECIFICATION forming part of Letters Patent No. 306,759, dated October 21, 1884.

Application filed April 10, 18534. (No model) To all whom it may concern:

Be it known that I, Moms F. KOCH, ofNew York, county and State of New York, have invented a new and useful Automatic Scale and Register, of which the following is aspecification, reference being made to the annexed drawings.

My invention relates to the class of automatic scales in' which the material to be weighedsuch as grainis received from a supply-tube in an oscillating box that is suspended from a scale-bea1n; and it consists in a device for bringing the oscillating box with certainty into the positions in which it is to be filled.

It also consists in other devices hereinafter described, which increase the accuracy and certainty of the action of the apparatus.

Figure 1 is a vertical central section of my improved scale. Fig. 2 is a vertical transverse section of the same. Figs. 3, at, and 5 are vertical cross-sections of the frame in which the oscillating box is hung. Fig. 6 is a face view of the dial used for registering. Fig. 7 is a horizontal section Fig. 1.

Similar letters of reference indicate the same parts in the different figures of the drawings.

The frame A,which supports all of the parts of the scale, is intended to rest upon the edges of the bin or spout into which the scale dis- In the top of this frameA are secharges. cured three cross-bars, c d d. The central crossbar, c, is made vertically adjustable, its ends being secured by screws 0 c to vertically slotted parts of the frame A. The bar 0 may also be adjustable in the direction of.

its length, as shown in Fig. 3. The lower part of the frame A carries a hopper, C. The sides of the hopper G are inclined, leaving an opening, D, for the discharge of the material being weighed. In this opening is placed a ridge-shaped plate, 15, which is attached to a lever, F, that is pivoted in the ears 0 at one end of the hopper O, and provided with a counter-weight, G, capable of holding the free end of the lever F in contact with the under side of a stop, f, when there is no discharge upon the plate E of material being weighed. The lever F connects by a rod, U, with the crank.-

beam.

of the scale on the line was shaft of a gate, Q, which is hung in the upper part of the apparatus, as shown in Fig. 1, and

as described in Letters Patent No. 255,832. A bifurcated scale-beam, H, is provided on opposite sides with knife-edges g, which are received in V-shaped bearings formed in cars h,projecting downward from the top frame, 13. These V-shaped bearings centralize the knife-edges and limit the vibrations of the An arm, I, projecting outward from the scale-beam H, and forming a part thereof, is provided with an adjustable sleeve, J, from opposite sides of which project knife-edges t, which support the weight K. These knifeedges also enter \l-shaped bearings, as shown in Fig. 1. The weight K is adjusted toward or away from the knife-edges g by sliding the sleeve J on the arm I, and it may be secured in any desired position by turning a thumbserew, j, which clamps the sleeve J' to the arm 1. The free end of the arm I'rests normally on a lug, 7., projecting from the frame A. Knife-edges Z project inwardly from the sides of the forked scalebeam H, with their edges uppermost, and are received in V-shaped bearings in a rectangular frame, m, which sup ports the oscillating box L. The frame m is shown in top view, Fig. 7. The ends of the frame or are rigidly secured to the upper ends of upright barsn, that are forked at their point of attachment to the frame m. The upright bars a are also forked at their lower ends, as

.shown at 0, Fig. 2, for receiving the connecting ties or rods 1), which extend across below the oscillating box L, and which unite the frame m, uprights n a, and rods 1) all into one secured to the cross-bars d of the frame A, or to other parts of said frame.

The lower end of the supply-spout N is bifurcated, as in Fig. 1, to accommodate the adjustable crossbar and the attachments thereof, presently to be described. The oscillating box L is by a partition, I, which extends to the lower angle of the bottom of the oscillating box L, divided into two equal compartments, the top of the partition forming a bar, 0, with beveled upper edge, the same as shown in Patent No. 223,692. A roller, '1, is hung in one of the branches of the supply-spout; N in position to be touched by the edge of the bar 0 whenever the said bar passes the center line of the apparatus. The convexity of the roller t prevents the, bar 0 from stopping at or near the center ol'its oscillation. The roller '15 may be hung in the bar 0, as shown in Fig. 2;, to be touched by an arm, I, which projects from the bar 0.

In a bar, it, extending across the center of the frame or, are pivoted two detent-levers, r, having nibs w, capable of engaging an arm, .t', extending upward from the bar 0. The outer ends of the detent-levers r are connected by links a with pivotal pins b, projecting :l'rom the side of the adjustable eros. bar 0, as in lligs. 2 and .1, or from arms 0", which project lrom the t'rame A, as shown in Fig. 5. The dctent-levers o retain the oscillating box L in either of the positions it oecupies while being tilled from the spout N. XV hen the box L is tilled, and in descending carries down the frame in, it swings the detent-levers 1) on their pivots, so as to disengage the nib w from the arm a: when the box is free to oscillate. @ly raising or lowering one of the ends of the bar 0, the time of releasing the detent-levers tr may be varied so as to adjust the weighing capacity of the two compartments of the box L.

I desire it to be understood that I can either use the roller in connection with the detent levers r i: or alone-that is to say, without these detent-levers. The bottom of the box L is inclined from its sides downward toward the center line, and the gates r, when closed, are in the same plane as the portion of the bottom of the box to which they are attached, so that when open they will be closed by their engage ment with the rollers 11 as the box is oscillated. The supplyspout N provided with a swinging valve, Q, which is fastened to a crankshaft, ll, extending through the side of the spout. The valve Q. closes against a valve-seat, T, in the upper portion of the spout N and shuts off the supply of material to be weighed. The crank on the end of the shaft It is connected by the rod U with the lever ll", so that whenever the said lever is depressed by a discharge :t'rom the oscillating box L upon the plate 13 the supply-spout N will be closed. The rcgistering mechanism in the box V receives mo tion from some vibrating part of the machine, either from a projection on the arm 1 of the lever H, as shown in Patent No. 223,692, or otherwise. The dial \V of the register, as shown in Fig. 6, is provided with three circular row s of graduations. ()ne of these circles, 2,has a pointer, :5, which shows thereon each single discharge of the weighing-box L. The outer side of the larger circle, .1, of grad nations represents multiples of the motions of the in dex 3, which are shown by a pointer, 4', and the multiples of the record of this circle are in turn denoted by :tigures inside of the larger circle, 1, by the aid of a pointer, 5. These pointers are turned by suitable meansv the pointer 3 moving one step at each discharge from the weighing-box, the pointer 4- one step at each revolution of the pointer 3, and the pointer 5 one step at each revolution of point or 4:. Thus, it every ten discharges of thebox L yield one bushel, the pointer shows the numbers of bushels between one and one hundred and the pointer 5 shows the numbers or bushels .li'rom one hundred to ten thousand. The pipe A, through which the supplyspout N receives the material to be weighed, is in sorted in the upper end of the spent, and rests upon a narrow internal flange, f, which is formed in the spent, and is in absolute continuity therewith. The spout IX dips into the box L, as shown, the partition 1'? reaclr ing up to a less distance than the walls of the box to permit this. y this arrangenmnt it becomes impossible that grain overflow if the weighing appa'atns should become clogged. I regard this feature as a valuable im rovement on Patent No. 222,851, in which the spouts A and B are disconnected.

My improved weighing apparatus is adapted to weighing wheat and other grain, and all kinds of g ttlll'llitl, eomminutcd, and even 11(1- uid material.

The operation is as follows: Material to be weighed is conveyed by the pipe A. to the spout N, which delivers it to one of the compartments of the oscillating box L. When enough material has entered the eonipartniicnt to over-balance the weight K, the box L descends by its own gravity, and, carrying down the bar a and pivotal ends of the detent-levers 1.,(32111S8Stl10 detent-levers to turn on their pivots and withdraw the nib in from the arm .r, allowing the superior weight of the tilled side of the box L to tilt the box on its knife; edges n and release the gate on the tilled side ol' the box L, allowing the material. to escape into the hopper (J and upon the plate 1*]. causing the lever F to turn on its fulcrum and register one discharge of the box L, :d the same time momentarily closing the valve Q upon its seat T, preventing the flow ol' the material from the pipe A. until the gate r in the bottom ot' the empty chamber of the oscillating box L is closed, and until, .in fact, the weight (it of the lever 11 hits said lcver,whcn the valve (Q, willbe again thrown open andt'he empty eompz'irtment of the box Llwgin to fill. Should the chute into which thehopper (1 dis charges become filled with the material being weighed so as to choke the opening 11) and preveutthe free action of the lever F, the valve Q will remain closed and the apparatus will cease to operate or waste any grain until the material below the hopper O is removed.

I do not limit or confine my improvement to the exact form herein shown and described, as these may be varied without departing from the spirit of my invention. Among obvious modifications I will mention that the roller t may be journaled upon the bar 0. In this case a projection would be formed on'the spout N or bar 0 to engage the said roller.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is'

1. The combination, with the oscillating box and seale-beam of an automatic weighing-machine. of oppositely-arranged adjustable detent levers 11, provided with nibs 10,. whereby the oscillating box is locked in one or the other of the positions in which it is filled, and released by the downward movement of the scale-beam and oscillating box, as described.

2. The combination of the oscillating and vertically-movable box L, provided with the rigid central longitudinal bar-,0, having beveled edge 011 its upper surface,with the roller t, hung in the stationary part of the weighingmachine for preventing the said oscillating box from resting in aeentral positionwithout at any time stopping its motion, as described.

3. In an automatic scale, the pivoted and verticallyunovable weighing-box L, having gates r in thebottom and central partition, I, combined with the single spout N, which dips into the chambers of the weighing-box alternately, so as to prevent overflowing the partition passing beneath said spout when the box oscillates, as specified.

MORIS F. KOCH.

Vitnesses:

HARRY M. TURK, XVILLY G. E. SCHULTZ.

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