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' ‘Nov. '12; 1946. '
Filed uarcrf 10, ' 1943
Patented Nov. 12, 1946
Carl R. Hennicke, Cleveland, Ohio,‘ assignor to
The Eastern Malleable Iron Company, Nauga
tuck, Comm, a corporation of Connecticut
Application March 10, 1943, Serial No. 478,624
1 Claim.
(01. 24-488)
This invention relates to strap buckles, and
particularly to a buckle which is stamped from'
sheet metal, as for example sheet or strip steel
of appropriate thickness.
bars 3 and 5 being connected by side bars ‘I. The
side bars 1 have perpendicular ears 8 thereon,
Buckles of the general type to which the pres
ent invention relates are old and well known in
the art, and it is also old and well known to stamp
each ear having a hole 9 therein.
The bail or tongue, which is also stamped from
sheet metal and designated generally as [0, is of
substantially rectangular shape, with a front bar
ll having an upstanding strap engaging lip l2.
them from sheet steel. Ordinarily they com
prise a substantially rectangular frame with a
It has side bars [3 and a rear bar Ill.
one edge to form a ridge. Each side bar of the
buckle has an integral ear, having a hole therein.
The tongue or bail of the buckle is also a rec
tongue or bail on the frame.
The rear -
bar projects at each end beyond the side bars,
cross bar at one edge, which is serrated, and a 10 forming trunnions or pintles [5, that engage in
the holes 9 of the ears 8 to pivotally mount the
second cross bar, which is slightly bent along
tangular member, with the front bar thereof
turned toward the serrated edge of the frame, and
the rear cross bar of the bail or tongue projects
laterally into the openings in the ears of the
frame, to provide a pivotal support for the bail or
tongue. It is about this rear cross bar that the 20
strap is looped to make the ?xed attachment of
the strap to the buckle.
All such buckles, however, have a common
weakness in that the rear cross bar, which con
According to the present invention, the rear
edge of the bar I4 is rolled forwardly upon the
bar as indicated at Hi, this rolled edge extending
along the full length of the bar, including the
trunnions l5. This rolling over of the metal con
stituting the edge of the bar reinforces the bar,
rendering it far more resistant to deformation
when the strap is pulled tight. It also provides
a better bearing surface on the trunnions, as well
as strengthening them so that they ‘do not gouge
or scrape the metal around the holes 9 when the
tongue pivots in the frame.
stitutes the hinge pin, is relatively weak, especial 25 This expedient of turning the rear edge of the
bar eliminates, without any appreciable manu
ly at ‘the projecting ends which engage in the
In some such buckles part of the metal
, facturing di?iculty, a weakness that has long been
recognized in stamped metal web strap buckles
of this general type.
provide a round surface about which the strap
passes, but this provides no adequate reinforce 30 I claim as my invention:
A web strap buckle comprising a frame having
ment in strengthening the bar, and particularly
the pintle portions thereof.
a serrated forward edge, ears ext-ending perpen
According to the present invention, the rear
dicularly from the frame at each side thereof, the
said ears being oppositely disposed and having a
edge of the rear cross bar is rolled over through
out its length, thereby substantially reinforcing
recess therein, and a tongue member for the
the bail and providing a trunnion or hinge por
buckle including a front bar with an upstanding
tion of better shape to engage in the circular
lip thereon, side bars, and a rear cross bar longer
constituting the rear cross bar is bent over to
holes in the ears, and thus eliminate at negligible
cost a heretofore prevalent Weakness.
My invention may be readily understood by
reference to the accompanying drawing, in
than the front bar .andprojecting there-beyond
on both sides thereof, the said rear bar having
its ends received in the recesses of the said ears,
the ends of the rear bar thereby forming trun
nions for turnably mounting. the tongue mem
ber relatively to the said buckle frame, the said
buckle embodying my invention; .
rear bar being adapted to de?ne an anchor for a.
Figure 2 is a transverse vertical section in the 45 strap adapted to be secured by the buckle, the
plane of line II—II of Figure 1;
said rear bar being reinforced by being rolled
Figure 3 is a perspective view of the bail de
over on itself throughout its entire length, includ
tached from the buckle frame.
ing the said end trunnions thereby being highly
In the drawing 2 designates generally the
resistant to deformation under pressure exerted
stamped metal frame of the buckle. The frame
thereon through the strap during securing of the
said strap,
comprises a front bar 3, with a serrated edge 4;
a rear bar 5, with a pressed up ridge 6, the two
Figure 1 is a top plan view of a web strap
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