Improvements in Ventilators.
Year: 1891

page_text: Date of Application, 12th Mar., 1891
Complete Specification Left, 9th Dec., 1891-Accepted, 9th Jan., 18º2
PROVISIONAL SPECIFICATION.
Improvements in Ventilators.
I, ARNOLD WRIGHT KERSHAW, of Custom House Buildings, Lancaster in the
County of Lancaster, Architect & Ventilating Engineer, do hereby declare the
nature of this invention to be as follows:--
The object of this invention is to provide an improved ventilator, for the admission
of fresh air, by combining two well known forms of inlet ventilator, but hitherto
not used in conjunction with each-the one part being after the form of the
Sheringham or box inlet, (differing in detail) and the other part being the
application to the same of our patent diffusers (see Patent 21169) hitherto used
only by us & then only to fixed vertical tubes. The said inlet ventilator consists
of a frame for building or fixing in wall, of a face plate with sides hinged at foot, or
sliding in & out of frame, for opening & closing, and of the patent diffusers referred
to. Arrangements may also be introduced (optionally) for filtering, warming,
cooling, drying or moistening the air.
Dated this 11th day of March 1891.
ARNOLD WRIGHT KERSHAW.
COMPLETE SPECIFICATION.
Improvements in Ventilators.
I, ARNOLD WRIGHT KERSHAW, of Custom House Buildings, Lancaster in the
County of Lancaster, Architect and Ventilating Engineer, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
The object of my invention is to provide an improved inlet ventilator for the
admission and diffusion of fresh air to buildings, ships etc. The said inlet ventilator
to consist 1st of a fixed frame A (see drawings) for building or fixing in partition or
wall, with or without the vertical baffle plate F; 2nd of a box or face plate B,
having sides E, deflectors C, and backplate D, behind same (substantially as shewn in
Fig. 9 of my Patent 2116) for cutting up and diffusing the incoming current of
fresh air, the said box or face plate, being hinged, pivoted, or otherwise worked so
as to turn outwards or lean forwards at the top for a certain distance, with the foot
as a centre, for opening & closing, or the face plate with its deflectors sides, and
backplate may be made to slide in and out of the fixed frame, answering the same
purpose.
In the accompanying drawings
Fig. 1. represents a cross vertical section of such inlet ventilator, when closed;
Fig. 2. represents the same when open;
Fig. 3. represents a section of same parallel with, and immediately behind the
face plate B; and
Fig. 4, represents a front elevation with suggested style of treatment.
There is no restriction as to the materials of which the said inlet ventilator may
be made, though by preference cast metal will be adopted.
I do not confine myself to the precise details, design, form, or proportions herein
described, & shewn on the accompanying drawings, as the same may be varied
without in any way altering the characteristic nature of my invention.

page_text: Having now particularly described & ascertained the nature of my said inven-
tion & in what manner the same is to be performed I declare that what I
claim is
1. The construction of inlet ventilators having a fixed frame, with movable box
or face plate, having sides, deflectors, & back plate as herein described, and as
illustrated by the accompanying drawings.
In witness whereof I the said Arnold Wright Kershaw have hereunto set
my hand.
Dated this 8th day of December 1891.
ARNOLD WRIGHT KERSHAW.