scissor jack

scissor jack

[′siz·ər ‚jak]
(mechanical engineering)
A lifting jack driven by a horizontal screw; the linkages of the jack are parallelograms whose horizontal diagonals are lengthened or shortened by the screw.
References in periodicals archive ?
Tenders are invited for Scissor Jack, Make : Hi-Tech Or Similar Make Approved By Rdso.
If you have a scissor jack (image a), insert the rod or wrench over the knob, and then crank.
Optional equipment consists of 12" side rail extension kit to expand the the lift table to 48" width, allowing the lift to accept ATV's, Snowmobiles, Riding Mowers, Jet Ski, and Power Equipment; a scissor jack for use on the table capable of lifting from 3 1/-2" to 17 1/2"; and the roller plate which fits into the rear wheel drop out to allow wheel cleaning and service without jacking the bike off the table.
The inquest was told the scissor jack Terence had used to prop up the van had likely given way.
Unlike sandbags that take time to deploy and can be dislodged when flood water rises, the Floodgate system uses a scissor jack mechanism attached to the frame to lock it in place.
If your shelter expands to only one side, use one scissor jack.
Where required, a variable pressure regulator can be fitted so that pouring curve can be programmed The Dosotherm is mounted on a scissor jack so that the dose height can be adjusted and the furnace can be back tilted for emptying and alloy changes.
Unlike unreliable sand bags that take time to deploy and can be dislodged when flood water rises, the Floodgate system uses a scissor jack mechanism attached to the frame to lock it in place.
Ratchet, rack and pinion, worm and pinion, screw-type and scissor jacks got the job done in the shop and on the road.
George Andrews, aged 76, was attempting to move a large central heating storage tank on two car scissor jacks when it toppled on to him.