Improvements in and relating to Pocket Books and the like.
Year: 1892

page_text: Date of Application, 9th Feb., 1892-Accepted, 26th Mar., 1892
COMIUMIM DE MULERATION.
Improvements in and relating to Pocket Books and the like.
I, SEBASTIAN ANDREW STANGE, of 174 Elbery Street East Brooklyn, in
the County of Kings, and State of New York, United States of America, Pocket-
book Maker do hereby declare the nature of my 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 produce a spring fastener or retainer for covers
of books or cases.
The invention consists of a clasp formed of a piece of thin sheet metal bent near
its centre so that one end overlaps the other, said clasp being inserted in a double
flap or extension formed in one with one of the covers, and a narrow strip of thin
metal inserted in the other cover as hereinafter fully described and pointed out in
the claims.
Referring to the accompanying drawings:
Fig. 1 is a perspective view of the flat metal spring clasp before it is inserted in
the cover.
Fig. 2 represents a pocket memorandum book provided with a fastener or
retainer embodying my invention, the book being closed.
Fig. 3 is a similar view showing the book open.
Fig. 4 shows the position of the flap and cover when about to be fastened.
A, represents a spring clasp formed of a piece of thin sheet metal, preferably
steel, bent over near its centre so that one part or end overlaps the other, the lower
portion a, being somewhat longer than the upper portion b, the two ends being
curved as shown.
B, is a book, and C, C³, the covers thereof. The cover C, is formed with a
double extension piece c, in which the spring clasp A, is secured, and in the cover C¹,
is embedded a spring or strip c', of thin sheet metal, preferably steel.
To close a book or case provided with a spring clasp A, and spring e', embodying
my invention, the double flap c, is first folded over, the cover C, is then bent into
position shown in Fig. 4, so that its edge rests upon the lower portion of the double
flap c, it is then released and the spring c¹ forces it between the double flap, the
space between the flaps being just sufficient to allow it to enter freely, and the
covers are then securely held, the spring clasp retaining the edge of the cover C¹.
To open the book or case, the cover C, has simply to be drawn out from between
the double flap c.
Although I prefer to employ the spring c', in the cover C', it might in some.
cases be dispensed with.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
clain is :-
1. A book or case having one cover formed with a double extension or flap in
combination with a spring clasp of sheet metal bent near its centre so that one end
overlaps the other, substantially as shown and described.
2. A book or case having one cover formed with a double extension or flap, and
a spring clasp of sheet metal inserted therein, and the other cover having a spring:
of flat metal inserted therein substantially as and for the purposes set forth.
A
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, Agents for the Applicant..