子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Digital mass flow control system | US3724720D | 1971-08-05 | US3724720A | 1973-04-03 | BULLIVANT K |
| The throughput of a conveyor belt is controlled by a motor whose speed is established by the instantaneous state of an up/down counter. The counter is incremented upwardly by setpoint pulses representative of the desired mass flow rate, and downwardly by feedback pulses from a rate multiplier representative of the actual mass flow rate. When the actual mass flow rate is equal to the setpoint flow rate, the average number of setpoint pulses will equal the average number of feedback pulses with the result that the state of the counter will be stable with time. Speed control means for the motor maintains the belt speed at a level dependent upon the state of the counter. A variation between the actual and desired mass flow rates is manifested by a change in the average number of feedback pulses which results in a change in the state of the counter. The resultant change in the motor speed and hence the belt speed restores the average number of feedback pulses to equality with the setpoint pulses thus restoring stability to the counter and restoring the actual mass flow rate to the setpoint rate.
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| 222 | Automatic bulk feeding and distributing apparatus | US3709351D | 1971-02-04 | US3709351A | 1973-01-09 | OLDERSHAW C; DE KRAMER D |
| Apparatus for automatic bulk feeding and distribution of products. The apparatus provides for an even, uninterrupted flow of product from a bulk infeed station to a group of individual work stations so that a group of individual processing lines or machines are assured a continuous supply of product. The apparatus comprises product supply means, conveyor means upon which product for feeding and distribution is carried and may build up, means associated with the conveyor means allowing for transfer of product therefrom, segmented gate means through which product passes as it is carried upon and along the conveyor means, means for detecting the level of product as it is carried along the conveyor means, control means which are connected to the gate means and detecting means and the product supply means and product receiving and discharging means which are associated with the conveyor means and control means. The apparatus is especially useful in the processing of agricultural commodities.
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| 223 | Conveyor | US3693835D | 1971-07-16 | US3693835A | 1972-09-26 | HOBBS OLIVER K |
| An apparatus is provided for distributing a comminuted material, especially tree bark, over a moving surface in a substantially uniform depth comprising a bin, drag bars which discharge the material from the bin and a ratchet assembly responsive to the depth of material on the moving surface for determining the rate at which the drag bars are moved.
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| 224 | Feeder control and method | US3651985D | 1970-12-07 | US3651985A | 1972-03-28 | SMITH FLOYD E |
| A feeder is disclosed in which a supply feeder delivers frangible parts to a linear feeder. The control is achieved by slaving the supply feeder to the linear feeder, and controlling the number of parts on the linear feeder as a master with the supply feeder as slave. An interrupted beam control is positioned to determine the infeed from the supply feeder to the linear feeder, the linear feeder being controlled by another beam interruption control at its delivering end. The parts are delivered to a finite position, illustrated for pick up by a conveyor having a plurality of buckets on a chain. The control shuts off the slave supply feeder upon a predetermined time delay after parts pass through the beam. The supply feeder is then activated again after the parts blockage is removed. For purposes of illustration, the supply feeder is a vibratory bowl feeder and the linear feeder is a vibratory linear feeder. The method contemplates feeding the parts to the linear feeder from the slave supply feeder shutting the same off upon a predetermined time delay after a signal. The signal is a function of continuous parts blockage of a sensor, which is reactivated responsive to the absence of parts blockage, the method of controlling the linear feeder being solely the function of positioning of parts at its delivery end.
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| 225 | Automatic bow feeding apparatus | US3621981D | 1970-02-13 | US3621981A | 1971-11-23 | NIMMO PHILIP E JR; TOWNSEND RICHARD A |
| Automatic apparatus for the feeding of soft lightweight ornamental articles, such as bows formed from ribbon, includes a hopper wherein the articles are loaded in random fashion. A primary shuffler constituting the bottom wall of the hopper is reciprocated in a horizontal plane to deliver the articles in a forward direction to a secondary shuffler also reciprocated in a horizontal plane. A first photoelectric device automatically halts reciprocation of the primary shuffler when there is a pileup of articles on the secondary shuffler. The secondary shuffler delivers the articles to the wide-mouthed upper end of a downwardly extending chute having converging sides which terminate in a relatively narrow mouth. A transformer-type vibrator vibrates the chute with very short rapid strokes directed along the longitudinal axis of the chute. Articles tumble from the discharge end of the chute onto a continuous belt transfer conveyor, which delivers the articles to a continuous belt delivery conveyor located adjacent to and in axial alignment with the transfer conveyor. A second photoelectric device deactivates the transfer conveyor whenever there is a pileup of articles at the boundary between the transfer and delivery conveyors. A third photoelectric device deactivates the delivery conveyor each time the latter delivers a predetermined number of articles (one or more) to a loading mechanism, with the delivery conveyor being reactivated in response to the condition of the loading mechanism.
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| 226 | Control apparatus for book hopper | US3599965D | 1969-08-07 | US3599965A | 1971-08-17 | HUMPHREY PAUL G; BUNTING CHARLES W |
| Magazines are delivered to a hopper and are successively fed from the hopper onto a conveyor by an oscillating shuttle and a pair of driven pinch rolls. The shuttle is operated in timed relation with the conveyor through a clutch controlled by a pneumatic valve including a pistonlike valve member. A paddle senses the stack height of the magazine within the hopper and actuates the valve member. Air is continuously exhausted from the valve, and the flow rate of the exhausting air is adjustable to vary the stack height of the magazines within the hopper.
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| 227 | Bale elevator and loader | US3589534D | 1969-03-20 | US3589534A | 1971-06-29 | BROWN ELMER L |
| A loader having both sides hinged for stacking bales in its hopper has a pusher driven by a reversible screw drive which is stopped when a bale is positioned in a loading position of an elevator. The elevator then lifts the bale and raises it until an inclined deflector pushes the bale off onto a horizontal conveyor.
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| 228 | US887026D | 1970-06-26 | UST887026I4 | 1971-06-22 | ||
| 229 | Loader for reciprocating hopper | US3578211D | 1968-12-31 | US3578211A | 1971-05-11 | COAPMAN RICHARD T; GINTHER GARY D |
| A flexible band forms a chute by which articles are delivered to a vertically oscillating hopper from an elevated container while the hopper is in motion. A spring-supported pressure plate within the hopper is depressed by impacts of the articles within the hopper thereon only until the supply falls below a predetermined minimum and thereafter remains undepressed, thereby actuating a motor which causes transfer of additional articles from the elevated container onto the chute for automatically replenishing the supply of articles in the hopper.
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| 230 | Control device for a two section belt conveyor | US3545595D | 1968-05-24 | US3545595A | 1970-12-08 | REIST WALTER |
| 231 | Flat sheet conveyer | US3520399D | 1967-11-17 | US3520399A | 1970-07-14 | STEFFENSEN LESLIE M; WILSON RUSSELL W; SLAGLE ROBERT J; PETERMANN JAMES P |
| 232 | Conveying means for delivering material at a substantially constant rate | US3468456D | 1967-05-19 | US3468456A | 1969-09-23 | CLINE JEROME F |
| 233 | Sorting conveyor control | US3451547D | 1967-08-10 | US3451547A | 1969-06-24 | GRELLER NELSON P |
| 234 | Gravimetric belt feeder | US60720767 | 1967-01-04 | US3405842A | 1968-10-15 | WAHL EUGENE A; LAWNER ARNOLD M; WINTERS RALPH J |
| 235 | Conveyor structure | US47848965 | 1965-07-19 | US3365049A | 1968-01-23 | RAAB HILARY A |
| 236 | Conveyor device | US48129665 | 1965-08-20 | US3360260A | 1967-12-26 | HANS RAPPARLIE; EBERHARD ERNST |
| 237 | Feed device for travelling grates | US46707565 | 1965-06-25 | US3307679A | 1967-03-07 | HANS-WERNER ZIEGLER; WERNER KOWALSKI |
| 238 | Conveying of particulate material | US46700865 | 1965-06-25 | US3291285A | 1966-12-13 | RONALD GRAY; GRUFFYDD JENKINS DAVID |
| 239 | Mechanical linkage | US28442763 | 1963-05-31 | US3229807A | 1966-01-18 | MOORE FRANCIS W |
| 240 | Means for continuously feeding pulverulent or granular materials | US34778064 | 1964-02-27 | US3228557A | 1966-01-11 | MADDOCKS KEITH L |
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