Improved Catch or Slip Fastener for School and like Desks for Temporarily Fixing the Angle of Top.
Year: 1898

page_text: Date of Application, 21st Mar., 1898
Complete Specification Left, 21st Dec., 1898-Accepted, 4th Feb., 1899
Improved Catch or Slip Fastener for School and like Desks for
Temporarily Fixing the Angle of Top.
I, CHARLES BENNET, of 47, Glengall Road, Old Kent Road, County of London,
School and Church Furniture Manufacturer, do hereby declare the nature of this
invention to be as follows: --
This invention relates to the construction and arrangement of catch or slip
fastener devices for temporarily fixing the desk top at an angle or horizontally
flat.
For the purpose, the end uprights or standards are each provided with a notch
and a couple of ears or lugs with a transverse hole for the reception of a bolt, screw,
or rivet which forms a pivot for supporting a lever, this having at one end a weight
and the other a nose with plain or chamfered edges for engaging a recess or notch
on the end bracket of the desk proper, which when the catch is released can be
folded or swung over or down from its own pivot by which it is connected to the
standards.
The notch for the catch in the end bracket is preferably composed of two angle
faced cheeks with the notch between them for self catching when the desk top is
pushed up to take a horizontal position, but said notch and its cheeks can be so
made that the catch can be first opened and then inserted.
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Charles Bennet.
Improved Catch or Slip Fastener for School and like Desks for
Temporarily Fixing the Angle of Top.
I, CHARLES BENNET, of 47, Glengall Road, Old Kent Road, County of London,
School and Church Furniture Manufacturer, 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:-
This invention relates to the construction and arrangement of catch or slip
fastener devices for temporarily fixing the desk top at an angle or horizontally
flat

page_text: For the purpose, the end uprights or standards are each provided with a notch
and a couple of ears or lugs with a transverse hole for the reception of a bolt, screw,
or rivet which forms a pivot for supporting a lever, this having at one end a weight,
and the other a nose with plain or chamfered edges for engaging a recess or notch
on the end bracket of the desk proper, which when the catch is released can be
folded or swung over or down from its own pivot by which it is connected to the
standards.
The notch for the catch in the end bracket is preferably composed of two angle
faced cheeks with the notch between them for self catching when the desk top is
pushed up to take a horizontal position, but said notch and its cheeks can be so
made that the catch can be first opened and then inserted.
My invention will be clearly understood by reference to the annexed drawings.
Figure 1 end elevation of desk top appliances with my slip fastener invention in
a locked position.
Figure 2 part sectional side elevation.
Figure 3 perspective elevation of a couple of school desks and seats as preferably
arranged for scholars.
A, A, are uprights or standards on a mid-board or ledge shelf B which is bolted
to the bottom standards C, each of which may be of a single casting, or in
combination with the castings or uprights D of the seats E.
F, F, lugs projecting outwardly from the uprights A drilled for a cross pin G,
from which a catch lever H is suspended, the lever having the weight I to over-
balance the nose J of the lever H to keep it at the proper position, the sides of
the nose being chamfered as shown.
K, K, brackets secured to the opposite ends of the desk L and loosely jointed
to the uprights A by the pivot bolts or studs M, so that the desk L can be set
prefectly horizontal for use as a table, as by the full lines Figure 1, or be set at an
angle for writing purposes, as by the dotted lines N, N, Figure 1 which is effected
by the nose J of the catch lever H entering the respective holes or slots P or Q, the
slot P being centrally arranged in the bracket K for the first position, and the slot Q
at an angle from the centre M for the second position, or by releasing the nose J
and turning the desk L over to a greater angle from either side, or as shown
by the dotted lines R, R, Figures 1 and 3, it can serve as a back rest for the
occupants of the seats in advance.
To facilitate the ready action of shifting the desk L from one position to another
of the first two positions, I chamfer the edge faces S, S, of the brackets K, which
chamfers or inclines with those of the nose faces prevent sudden jars occurring when
the desk is being moved.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is: --
The improved catch or slip fastener H. constructed and arranged as set forth
suspended from upright A to engage one or other of two slots P, Q, in pivotted
bracket K, as a means for securing desk L of school appliances at a flat horizontal,
or at an angle thereto, as represented and for the purposes described.
ex
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Charles Bennet.
H. GARDNER,
Patent Agent, 166, Fleet Street, London.
Agent for the said Charles Bennet.