A Combined Letter Slit Cover and Knocker for Doors.
Year: 1890

page_text: Date of Application, 27th Dec., 1890
Complete Specification Left, 28th Sept., 1891-Accepted, 12th Dec., 1891
PROVISIONAL SPECIFICATION.
A Combined Letter Slit Cover and Knocker for Doors.
JOHN HENRY WALTER No. 6 Langley Road Small Heath Birmingham County
of Warwick, Coal Merchant and Commission Agent do hereby declare the nature
of this invention to be as follows
A combined letter slit cover and knocker for doors requiring no frame, manu-
factured in brass, iron, steel or other suitable material, and in any size, configuration
or ornamental design, constructed by the lift up slit cover being hinged to, or
hooked on at the back of an upper part, which is secured to the door above the slit
by a bolt and inside nut, and may be further secured in its position by one or more
small spikes being cast on back or small screws; the lift up which is flat, is
provided with a knob or other suitable arrangement at the bottom end for the
purpose of raising it, a stud of suitable material is provided to be placed in the
door immediately behind the knob or end of lift up.
The principle is applicable to either perpendicular or horizontal letter slits, in
the latter case the lift up is hinged from the top long side instead of at the end, the
stud for the door to be placed under the centre of the lower edge.
The object of my invention is to provide a cheap, simple, and effective letter slit
cover and door knocker combined.
It is so simple that anyone able to use a keyhole saw can fix it.
It is neat, and cannot get out of order.
It would be much more convenient for the postmen than many of the letter
frames now in use.
COMPLETE SPECIFICATION.
A Combined Letter Slit Cover and Knocker for Doors.
JOHN HENRY WALTER No. 6 Langley Road Small Heath Birmingham County
of Warwick, Coal Merchant and Commission Agent, 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 :-
A combined letter slit cover and knocker for doors requiring no frame, manu-
factured in brass, iron, steel, or other suitable material, and in any size, configuration
or ornamental design, constructed by the lift up slit cover A being hinged to, or
hooked on at the back of an upper part B which is secured to the door above the
slit, by a bolt C and inside nut, and may be further secured in its position by one
or more small spikes being cast on back, or small screws through it; the lift up A
is provided with a knob or other suitable arrangement at the bottom end D for the
purpose of raising it; a stud of suitable material is provided to be placed in the
door immediately behind the knob or end of lift up. The principle is applicable to
either perpendicular Fig. I. or horizontal letter slits Fig. II.; in the latter case
the lift up is hinged at the top long side E instead of at the end; the stud for the
door to be placed under the centre of the lower edge.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is
1st. That the object of my invention is to provide a cheap, simple, and effective
letter slit cover and knocker for doors combined.

page_text: 2nd. That it is easily fixed, and cannot get out of order.
3rd. That it would be much more convenient for postmen than many of the letter
frames now in use.
Doted this 26th day of Santamber 1801