hopper


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Related to hopper: Edward Hopper

hopper

1. a funnel-shaped chamber or reservoir from which solid materials can be discharged under gravity into a receptacle below, esp for feeding fuel to a furnace, loading a railway truck with grain, etc.
2. any of various long-legged hopping insects, esp the grasshopper, leaf hopper, and immature locust
3. an open-topped railway truck for bulk transport of loose minerals, etc., unloaded through doors on the underside
4. Computing a device formerly used for holding punched cards and feeding them to a card punch or card reader

hopper

[′häp·ər]
(engineering)
A funnel-shaped receptacle with an opening at the top for loading and a discharge opening at the bottom for bulk-delivering material such as grain or coal.

hopper

1. A funnel-shaped bin or chute; used to store loose construction materials, such as crushed stone or sand.
2. One of two barriers on both sides of a hopper light to prevent airflow through the side openings at the ends of the inward-sloping pivoted sash (ventilator, 2).
3. A water tank which releases its contents through a pipe at the bottom; esp. used with a water closet.
4. A water-closet bowl, esp. one that is funnel-shaped.

hopper

A tray, or chute, that accepts input to a mechanical device, such as a disk duplicator or printer. In the days of punch cards, millions of cards were numerically or alphabetically organized by placing them into the hopper of a card sorter, taking them out of all the stackers and putting them back into the hopper for the next card column.


Sorter Hopper
In the 1940s and 1950s, millions of punch cards were placed into hoppers on IBM sorters such as this one. The hoppers were also fitted with two-foot extensions that held more cards. (Image courtesy of The Computer History Museum, www.computerhistory.org)








Paper Hoppers
This Dataproducts laser printer holds 250 sheets of paper in the top hopper and 2,000 in the bottom. (Image courtesy of Hitachi Koki Imaging Solutions, Inc.)
References in periodicals archive ?
[UKPRwire, Mon Jul 22 2019] Feeding Hopper Market: An Overview A hopper is a storage container used to distribute granular materials through the use of a cascade to restrict flow.
Starr Insurance Companies today announced the appointment of Andrew Hopper as head of Financial Institutions for the UK and Europe.
[ClickPress, Wed Apr 10 2019] Hopper dryers market is likely to grow owning to the growing demand of hopper dryers in the well-established and emerging regions, technological advancements, and the growing penetration of the end-use industries.
Contract Awarded for Provide TradeMark East Africa/Kenya Port Authority with four Eco Hoppers to import clinker, coal and gypsum.
"The Hopper Topper is designed to minimize grain spillage that occurs at the hopper while grain is being loaded onto trucks," Dismuke says, pointing at his patented creation.
3 ( ANI ): London's one-hour 'bus hopper' ticket has now become unlimited.
Grace Hopper was a pioneer in the field of computer science and for more than four decades was at the forefront of computing development--in the U.S.
The round is comprised of new funding, as well as a convertible note that was announced earlier in the year, and brings Hopper's total funding to date to CAD104 million.
Mr Corbyn led the tributes to Mr Hopper, tweeting a picture of the pair together.
The girl, who was really a student in Liverpool, reported Hopper - and he was convicted of attempting to incite sexual activity with a child after a twoday trial.
The Bulk-Out bulk bag discharging station prevents cross-contamination during material changeovers, while eliminating down-time associated with cleaning of hoppers. The discharger features a shuttle system that allows a hopper that has been used to be exchanged for a clean, dry hopper in less than one minute.
This new Bulk Bag Discharging Station prevents cross-contamination during material changeovers, while eliminating down-time associated with cleaning of hoppers. Beneficial for applications involving food allergens, pigments, flavorings and other contamination-sensitive materials, the discharger features a shuttle system that allows a hopper that has been used, to be exchanged for a clean, dry hopper in less than one minute.