AT THE HEART OF THE ROAD TRANSPORT INDUSTRY.

Call our Sales Team on 0208 912 2120

Spray Painting Over Water

7th April 1933, Page 72
7th April 1933
Page 72
Page 72, 7th April 1933 — Spray Painting Over Water
Close
Noticed an error?
If you've noticed an error in this article please click here to report it so we can fix it.

Which of the following most accurately describes the problem?

ECONOMY of operation, greater convenience in working and improved comfort for the workmen are amongst the advantages which accrue from the novel arrangement of a paint-spraying department at the Chiswick overhaul depot of the London General Omnibus Co., Ltd.

The arrangement is, in principle, identical with the remedy for objectionable odours in a room which has just been painted. It is well known that a bucket of water placed in the room will collect any paint vapour or particles of paint floating around and rid the room of fumes.

At Chiswick, the vehicle to be sprayed stands in a shallow bath of running water, which, in cold weather, is warmed. The mere presence of this water appears to have the effect of collecting all the superfluous paint, of which there 'is Inevitably a great deal when using a spray gun.

It does this so effectively that the painters can work without recourse to masks or other protective measures. Nor is there any need for an exhaust fan to extract the paint fumes from the air. Indeed, the actual operation is carried on in the open.

The officials at the L.G.O.C. depot have gone a step farther, and actually separate the collected paint from the water, and, in certain circumstances, use it again.

This is done by a rather ingenious device. The running water from the bath is drawn off along a central gully. At the end of this gully, partially submerged, is a roller extending for the full width of the channeL c50 Behind the roller, and coupled to it by a driving chain, is a small turbine wheel, itself operated by the flowing water. In this way the roller is caused to rotate in the opposite direction to that in which the water is flowing and, in so doing, picks up the paint.

The paint floats on the top of the water, and it is transfei red to a tray lying behind the roller, the tray having a scraper to collect the paint from the surface of the roller.

Tags


comments powered by Disqus