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Патент USA US2119844

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June 7, 1938.
D. A. BRENNAN _
FASTENEIR
’
Filed Oct. 4, 1937
?y".1.
i3 21 152221
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2,119,844
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Patented June 7, 1938
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r
UNITED STATES PATENT OFFICE
2,119,844
FASTENER
Daniel A. Brennan, Chicago, Ill.
Application October 4, 1937, Serial No. 167,094
'7 Claims.
The invention relates to improvements in fasteners for binding papers together in a sheaf,
such as letters in a ?le, including a base having
spaced prongs adapted to extend through aper5‘ tures in the papers and a compressor having sim~
ilarly spaced apertures adapted to receive said
prongs, the end portions of the latter being
adapted to be bent downwardly against said compressor and’ to be held securely in bent position.
.0;- Paper fasteners of the type comprising a base
having prongs adapted to pass through apertures in a sheaf of papers and a compressor hav-
(01. 24-—153)
for oo-operative engagement With means asso
ciated therewith.
'
Another object is to provide an improved fas
tener which is inexpensive to manufacture, simple
in operation and e?icient in use.
The foregoing and such other objects of the
invention as will more fully appear hereinafter
as the description prooeeds Will be more readily
understood from a perusal of the following speci
?eatioh, reference being had to the accompany- it
ing drawing, in which:
Fig- 1 is a plan View Of a fastener embodying
ing registering apertures adapted to receive said
features of the invention, Showing One latch par
prongs, in some instances, are provided with
tially broken away.
7
l5;-. latches slidable over the prongs after the latter
are bent downwardly substantially against the
compressor. In such devices, the latches are, in
some instances, arranged’ to slide inwardly over
the prongs from a position outwardly of the
10; apertures and in other instances said latches are
slidable outwardly over the prongs from a posi-
Fig. 2 is a fragmentary longitudinal sectional lei‘
View taken on line 2—2 of Fig 1
Fig. 3 is a plan View Of a fastener embodying
a modi?ed construction.
Fig. 4 is a fragmentary longitudinal sectional
View taken Substantially On line 4—4 of‘ Fig. 3. so
In the various embodiments illustrated like nu
tion intermediate the apertures.
The invention relates primarily to a novel construction of either type of fastener embodying
35;,slidab1e latches to detachably engage means in
the prongs to prevent inadvertent shifting of the
latches off from the bent over prong portions.
merals identify like parts.
Referring particularly to Figs- 1 and 2, the fas
tenor constituting one embodiment of the inven
tion comprises a base ll having bendable prongs or
I? at opposite ends, and an elongated Compres
S01‘ l3 having spaced apertures l4, one inwardly
The novel means incorporated in this invention
differ materially from the means shown, dem, scribed and broadly claimed in my co-pen-ding
of each end, adapted to receive the prongs. Ele
vated parallel guides or ?anges l5 are provided
along the opposite longitudinal edges of the com- 30..»
application, Serial No. 476,058, ?led August 13,
1930, wherein means has been provided on the
pressor l3. Preferably, the guides 15 are formed
by folding the marginal Side edges of'the Com
prong ends for engaging in recesses or apertures
pressor
in the latches to prevent inadvertent shifting of
shown, and said guides may eXtend beyond the
'3 upwardly and then outwardly. as
5553111
Thelatches.
speci?c structure herein disclosed,
V
for pre-
the
apertures
Compressor
M. The
l3 and
guides
to confine
l5 servethe
to prongs
reenforce
l2v
venting inadvertent shifting of the latches off
laterally When the latter are bent downwardly
from the ends of the prongs, is novel means on
over the top face of the compressor.
the prongs to embracingly engage the latches,
lo-lwhich means is fully disclosed and broadly
claimedin my co_pending applications, Serial NO_
In this form of fastener, the projecting ends of
the prongs I2 may be bent down against the 4t);
compressor either inwardly or outwardly from the
688,099, ?led September 5, 1933; and Serial No.
apertures "- StOPS '6, formed by Striking de
22’291’ ?led May 20, 1935. The present appuca_
tion is a continuation-in-part of said co-pending
tents downwardly, are provided at each end‘v of
each gmde '5' . TWO latches n’ ‘lash preferably
15 applications.
formfedJ13f a strip of metal extendlng transverse- 45
It is therefore, an object of the present inven~
,
_
,
tion to provide an improved paper fastener with
novel means for effecting a yieldable latching or
_
embracing engagement between the prongs and
the latches resisting displacement after the latter
are moved into position to hold the prongs in
bent down position over the compressor.
Another object is to provide a base for paper
35 fasteners with novel means at its ends adapted
y 0
alon
e compressor '3’ are mounted to shde
the guides I5 between the sto s l6.
Wine the prongs are bent over igwardly to_
wards each other, as shown, the latches I‘! may
be initially located inwardly of‘ the ends of the 50
downwardly bent prongs and are then movable
outwardly toward the apertures over the ends of
said prongs to hold the latter bent over the com
pressor I3. If desired, the latches may be in
itially positioned outwardly of the apertures l4,
2
2,119,844
as indicated in dotted lines, for movement in
wardly towards each other over the bent over
ends of the prongs. This latter arrangement is
extremely desirable should a base having ex
tremely long prong be used. In this event the
long prongs overlap each other a considerable
distance when a comparatively thin sheaf of
papers is bound.
The latches I‘! are provided, on their ends,
10 with inwardly turned shoe portions l8 embrac
ing the ?anges I5. Each prong l2 preferably is
provided with two longitudinally spaced apart
upwardly extending transverse projections or
ribs I9 de?ning opposed shoulders 2|. The por
15 tion of the prong between the shoulders provides
a recess or compartment 22 to receive the bridge
like portion of one of the latches I‘! when the lat
ter is moved into latching position therewith.
Longitudinal shifting of the latches is prevented
20 by the embracing engagement of the shoulders
fall within the spirit of the invention and the
scope of the appended claims.
I claim:
1. A base for apaper fastener comprising an
elongated body portion and substantially ?at
bendable spaced prongs joined at one end to said
body portion, each of said prongs being pro
vided adjacent its other end with upstanding
projections spaced apart lengthwise of the
prongs.
10
2. A fastener comprising a base having one or
more bendable securing prongs; a compressor c0
operating therewith and held in position there
by; a latch slidable on said compressor and over
a prong in bent position; and upstanding pro 15
jections on said prong engaging opposite edges
of said latch and releasably holding the same
from sliding on said compressor in either direc
tion.
3. A fastener comprising a base having one or 20
more bendable securing prongs, a compressor co
2| with the edges of said latches and the in
herent resiliency of the underlying prong is suf
?cient to retain each latch yieldingly in latch
ing position within the recess or compartment 22.
The form of fastener shown in Figs. 3 and 4
25
and also shown in my said co-pending applica
tion, Serial No. 688,099, differs from the form
previously described in that the latches H are
adapted to be restrained from moving outwardly
formed adjacent its end to engage opposite edges 25
of said latch to releasably hold it from sliding
30 of the apertures by stops l6 formed at each
co-operating therewith‘ and held in position 30
aperture [4 preferably by depressing the longi
tudinal inwardly turned side flanges l5, as shown.
The latch is substantially like that previously
described except that it does not embrace the
35 longitudinal flanges 15a but has shoe portions
l8a sliding between the top face of the com
pressor l3a and the ?anges. Inadvertent sliding
of the latches off from the downwardly bent end
portions of the prongs l2a is prevented by pro
40
45
viding two longitudinally spaced apart pro
jections I9a on each prong, between which the
respective latch is adapted to be positioned. As
best shown in Fig. 4, the inherent resiliency of
the underlying prong retains the projections 19a
in engagement with the opposed edges of the
latch I'Ia embraced thereby and said latches can
only be shifted upon forcibly depressing the
prong ends to disengage the projections l9a from
said latches.
operating therewith and held in position there
by, and a latch slidable on said compressor and
over a prong in bent position, said prong being
on said compressor in either direction.
4. A fastener comprising a base having one or
more bendable securing prongs, a compressor
thereby, and a latch slidable on said compressor
and over a prong in bent position, said prong
being formed adjacent its end to engage oppo
site edges of said latch to positively hold it by
the inherent resiliency of the prongs from slid
ing on said compressor in either direction.
5. A fastener comprising a base having a bend
able securing prong at each end thereof, a com
pressor co-operating therewith and having
spaced apertures for the reception of said prongs,
two latches slidable on said compressor and over
the ends of said prongs in bent positions, and
upstanding projections on each of said prongs
35
40
engaging opposite edges of the corresponding
latch and releasably holding the same from slid
45
ing on said compressor in either direction.
6. A fastener comprising a base having one
or more bendable securing prongs, a compressor
co-operating therewith and held in position
In the fasteners shown herein novel means is
50 provided on the prong to prevent, inadvertent
thereby, and a latch slidable on said compressor
and over a prong in bent position, said prong 50
shifting of the latch off from the underlying
prongs, and the latches may be initially posi
tioned inwardly of the bent down prongs in either
form, and in the fastener illustrated in Figs. 1
55
and 2, the prongs may be bent and secured
either inwardly or outwardly of the apertures.
Although exemplary forms of the invention
have been described in detail in the foregoing
speci?cation and illustrated in the accompanying
60
drawing it is not desired to limit the invention
to the precise forms of fasteners disclosed but
being formed adjacent its end to provide a com
partment adapted to receive said latch and re
leasably hold the same from sliding on the com
pressor in either direction.
7. A base for a paper fastener comprising an 55
to embrace such modi?cations thereof as will
elongated body portion and substantially ?at
bendable spaced prongs joined at one end to said
body portion, each of said prongs having longi
tudinally spaced apart transverse shoulders ad
jacent its other end.
DANIEL A. BRENNAN.
60
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