Stopper


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Stopper

 

in metallurgy, a device that regulates the quantity of molten metal poured from a ladle and that prevents the entry of slag into the molds. A stopper consists of a refractory nozzle in the shape of a truncated cone at the bottom of the ladle and a refractory stopperhead that fits into the nozzle’s opening. The stop-perhead is screwed onto a steel rod, which is insulated from the liquid metal by refractory fireclay sleeves. Rod and stopperhead are raised and lowered by a lever on the outside of the ladle. Stoppers are gradually being replaced by stopperless devices, such as the slide, turn-gate valve, and disk valve.

stopper, stopping

A compound, such as putty, used to fill holes in wood, metal, etc.
References in periodicals archive ?
Our new stoppers are an innovative way of improving and adding value to a product," said Detlev Haack, director research and development, Hermes Pharma.
It is important to note also that all Bump Stopper products are alcohol free.
Gillespie contracted Miami, Florida-based product management services leader Innovation Direct[TM] to represent the Dust Stopper to potential licensees for a 2 year period.
Clean out the hair and reinstall the stopper and pivot rod.
Fabricators using these stoppers quickly achieve pay back since they eliminate all costs of cleaning the pipes after fabrication where sand, or metal grinding dust has otherwise been allowed to get inside the pipe and will contaminate the end product that is intended to be processed through the newly fabricated pipework.
The effectiveness of stopper extractables in inducing drug turbidity has been determined and the results are shown in table 2.
The pipe stopper and inflation equipment was provided by Selwood Ltd, Eastleigh, Hampshire, who pleaded guilty to a breach of Section 23 of the Provision and Use of Work Equipment Regulations 1998.
A compact counterbore design for flush fitting the stopper blocks in tight spaces.
To play the stopper position, you need to be a player who can tactically read the game both offensively and defensively," Tantasqua coach Steve Khoury said.
This is in addition to the pounds 3 million in machinery acquired by Stopper as part of its acquisitions, including a new laser cutter and transfer presses.
It's called the Epicurean-Presorvac Wine Saver and, with a 6-foot-long cord, 12-volt plug adapter and two wine stoppers, it runs about $60.