US297027A - Weighing and supplying apparatus - Google Patents

Description

r H. E. SMYSER. WEIGHING AND SUPPLYING APPARATUS- No. 297.027. Patented Apr. 15, 1884.

WITNESSES:

. STATES PATENT OFFICE.

HENRY nsMYsEn, or PHILADELPHIA; PENNSYLVANIA, ASSIGNOR TO THE wninnna SMITH SPICE COMPANY, or PENNSYLVANIA. I

wslel-ime AND 'SUIPPLYYINIG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 297,027, dated April 15, 1884.

it Application filed December 7, 1883. No modeh) 10 all whom/it may concern..-

Be it known-that I, HENRY E. SMYSER, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in. Weighing and Supplying Apparatus, which improvement is fully set forth in the following specification and accompany-- ing drawings, in which- 1o Figure 1 isa front view, partly broken away and sectional, of an automatic weighingand supplying apparatusembodying myinvention.

Fig. 2isa rear view of aportion thereoft Figs.

3 and 4 are side elevations of detached parts. Similar letters of reference indicate corresponding parts in the several figures.

My invention consists of means for automatically supplying thetray of'a scale with material to be weighed.

It also consists ofmeans for automatically weighing material supplied to a scale.

It also consists of certain other details of construction. aswill-be hereinafter fully set forth.

Referring to the drawings, A represents a table or support .for parts of the apparatus embodying my invention.

B represents a closed casing which rises from the table A, and has within it a conveyer, G, formed of an endless chain, with buckets or cups connected thereto, the same being sup ported on an operating-shalt, a, and is passed through openings in the table and dips into a supply pan or box, D, located beneath the table, said shaft or being mounted on the upper part of the casing B, andsaid box properly inclosed. I

E represents a hopper, which is secured to the casing B, and its upper end is within said casing,between the lengths of chain of the conveyer 0.

To the baseof the hopper E is attached a chute, F,which passes through the table A and has its lower end over the supply-pan D.

At the top of the chute F, at one side thereof, is a throat, G, it being noticed that said top is deflected laterally from the base ofv the hopper, so "that the bottom opening of the hopper E and said throat G form somewhatof a continuous passage, causing material dropit is again conveyed to the hopper.

ping from said opening to enter said throat, and thus escape. Said throat may, however, be at the side of the base of the'hopper E. v

H represents a scale, which is properly mounted on-the table A, the beam H being of 5 any suitable construction. 1 H represents the tray of the scale,thesame being pivoted to standards or supports rising from one end, of the scale-beam, so that it may be tilted or swung downwardly in order to be discharged of its contents, as most clearly shown in Fig. 4:.

Rising from and secured to the scale-beam isan arm, J, the upper end of which extends toward the throat G, and isprovided with a 6 cut-ofl' plate or valve, K, which is adapted to be projected across said throat and close the same, as shown in Fig. 1, it being noticed that the tray of the scale is located beneath said throat and cut-off'plate. The pan D is prop- 7O erly supplied with material and power applied to the shaft a, whereby the conveyer is operatedand the material raised to the top of the casing B, overturned, and caused to drop into the hopper E. The scale having been previously adjusted to weigh the required amount, has its tray elevated and the cut-off plate K removed from the throat G. The material having now passed through the hopper, reaches the throat and escapes therethrough 3 in a gentle stream to the tray of the scale, As the .tray slowly descends, th plate K is gradually advanced across the throat by the movement of the scale-beam, and when. the precise quantity of material is weighed the 3 plateK completely closes the throat, having accomplished the same without abruptness.

The material in the'hopper now falls on the plate K, and is thereby deflected into the chute F, so as to return to the pan D, from whence 0 The tray is now cleared of its contents and quickly returned, and, being empty, is raised by the scale-beam, the plate K also. moving to a position uncovering the throat G, whereby the material is again directed into the tray and automatically weighed, after which the stream is out off and returned to the supply-pan, as previously stated.

As stated above, the action of the'plate K I00 closing the throat G is without abruptness. This is more particularly accomplished by making the counter weight or balance of parts fitting each other telescopically, so that when the tray is empty and raised the lower part,

H', of the counter-balance rests on a platform or shelf, 1 without exerting its weight on the beam. balance is made hollow and has an internal shoulder, and the other part is formed with a stem having a T-head, which latter comes in contact with theshoulder when the upper part is partly raised by the beam, and isthereby also raised. \Vhen the tray receives almost all of its load, then the lower part of the counter-balance is raised, thus serving to check the or dog, M, which is hung to an elbow-lever,

N, towhich power is imparted by a rod, P, attached ,to acrank-wheel, Q, or other proper movable member of the apparatus. said wheel being geared with, the driving-pulley R, and keyed or otherwise secured to the shaft a.

Having thus-described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. A hopper provided witha. chute which is permanently uncovered. and an additional dischar'gethroat or outlet, in combination with weighing devices which automatically cut ofi the supply of. grain through said discharge throat or outlet whenever a certain quantity has been weighed, substantiallyas set forth.

2. A hopper provided with a permanentlyopen chute and an additional discharge throat or outlet, in combination with a plate, .K, adapted to slide across said throat and clear it, a scale-pan arranged to receive thegrain from said throat, and a scalebeam and conmeeting-rods through which the descent of said One part of the counter weight or I pan gradually moves said plate across said throat or outlet and closes the same, substantially as set forth.

3. A supply-pan and an e'ndless conveyer for raising the material therefrom, in combination with a hopper which is fed by said conveyer and discharges into said pan, and automatic weighing devices, which are supplied through an independent outlet or discharge- "throat of said hopper and operate to close the same when a certain quantity has been weighed, without closing the outlet whereby said hopper discharges into said supply-pan. 4. A supply-pan and an endless eonveyer operating therein, in combination with means for imparting rotary motion to said pan, sub- 'stantially as and for the purpose set forth. 1

5. A hopper provided with a chute which is permanently uncovered, and an additional discharge throat or outlet, in combination with weighing devices which automatically cut oh the supply of grain through said discharge throat oroutlet whenevera certai u quantity has been weighed, and a counterbalance-weight controlling said devices and consisting of two sliding parts, operating substantially as set forth.

6. A hopper provided with a permanently open ch uteand an additional discharge throat or outlet, in combination with a plate adapted throat, a scale-beam and connecting-rods through which the descent of said pan gradually moves said plate across said throat or outlet and closes the same, and a count-erbalance-weight controlling'said devices con sisting of two sliding parts, substantially as and for. the purpose set forth.

7. The combination, with an automatic ,weighing and supplying'device, of a counterbalance-weight consisting of an upper constant part. 11', and a lower part, H, onepart being hollow and internally shouldered, and the other part havinga connecting-stem formed with aT-head, substantially as and for the purpose set forth.

v H. E. SMYSER.

Witnesses:

Join: A. WIEDERSHEIM,

A. P. GRANT.

to slide. across said throat and close it, aseale; pan arranged to receive the grain from said

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