A Novel Rain-excluding Ventilator A N unusual ventilator, which is intended
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to prevent draughts and exclude rain, whilst providing efficient ventilation, has been introduced by Cooper, Webb-Jones and Co., Stockwell Works, Walsall. It is sold under the trade 'name of Sidno, and has been patented by Mr. P. H. Sands, 219, High Street, Cowdenbeath, the inventor.
The device consists of a hardwood box, to the top and bottom of which, on the inside, metal plates are attached by means of springs. Vertically corrugated vanes, which are deeper at the front than at the back, are pivoted along their forward edges and can be moved through an angle , of 180 degrees. The pressure of the spring plates against the edges of the vanes ensures comparatively weatherproof joints and permits them to be held in any desired position, The corrugations of the latter components are intended to baffle the wind and rain, whilst, sloping downwards, as they do, from the back to the front, moisture runs to the lowest point of the vanes and is easily dischapged outside the vehicle. Further to assist in the dispersal of rain water, the lower spring plate always slopes downwards from the back.
At the rear of the box is an adjustable cover plate, which opens and closes automatically with the movement of the vanes, and is designed to deflect incoming air to the roof. The device is light and is easily operated by a knob. Another interesting item in the Sidno range of body fittings is a lock for sliding doors, which, by means of a centre handle connected with vertical rods, locks the door at the top and bottom. In this way the effects of whip and vibration in bodies upon the efficiency of sliding-door locks are said to be oVercome. The locking device is' supplied fitted to the sliding track.