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Патент USA US2411813

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Nov. 26, 1946.
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7 QB. SCHWARZ
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2,411,813.
' METHOD AND APPARATUS FOR MANUFACTURE OF WIRE FASTENERS
Original Filed Oct."'(, 1941
F/ 9, 4
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4 Sheets-Sheet 1
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CONRAD BQS‘CHWARZ' ?vvmm.
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BY
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Nov. 26, 1946.
c. B. SCHWARZ'
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METHOD AND APPARATUS FOR MANUFACTURE OF WIRE FASTENERS
Original Filed Oct. 7, 1-941
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4 Sheets-Sheet 2
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Nov. 26, 1946.
c. B. SCHWARZ
2,411,813
_ METHOD AND APPARATUS FOR MANUFACTURE OF WIRE FASTENERS
Original Filed Oct. 7, 1941
4 Sheets—Sheet 3
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BY
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>Nov.26,j1946.'
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C.IB.SCHV\IIARZ
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2,411,813
METHOD AND APPARATUS FOR MANUFACTURE OF WIRE FASTENERS
Original Filéd Oct. 7, 1941
4'Sheets-Sheet 4
G; (‘m/RA 0 5150/14/45? mm/m
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Br‘
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2,411,813
Patented Nov. 26, “1946
2,411,813
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" METHOD AND APPARATI‘JS‘FDR MANU-V"
p‘ I FACTURE oF WIRE FASTENERS
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f‘ Conrad B. Schwarz, Louisiana, Mo.
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{original application October" 7,"1f1941,>"seria1 No.
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{113,997, nowrPatent No. 2,357,290; dated’ Sep-'
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tcmber
5,1944."
Divided-and‘this-application
‘January 5,2 1944,
Claims.
Serial(C‘l.
'No."140—93).v
517,052
'I'l'hislinvention relates ‘to a process andappaf
the use of pliers and‘ thelike. Anotherobject is
ratus-for manufacturing a cover fastener. More
to provide a new and improved wire fastener-for
a slatted cover which in use will strengthen‘ the
cover ‘and’ prevent the splitting of the slats. > All-‘.
particularly; this invention relates to a process
andapparatus for manufacturing a new and
improved wirefastener attached to the slatted
5 other object is to provide a process for themanu
facturing and attaching of suchv improved .wire
fasteners-{Still‘another object is to provide a
cover of a bushel basket, or the like.
It is the usual practice to provide baskets of
the bushel type with a pair of wire handles pro»
jecting upwardly above upper edge of the basket.
machine for the manufacturing and the attach
wing, of such wire fasteners. Other objectswill be
apparent’ from the following,’ description of'the
Such baskets usually have a slatted-cover with a
top. slat elongated so that its projecting ends
engage in said basket handles. It has become the
practice in packing these baskets to have them
invention.
heaping full; hencefdi?iculty is encountered in .
fastening the cover to the basket so as to provide 15
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Figure 1 is a top View of a slatted cover vwith the
improved fasteners side at points along the rim
a satisfactory ?t. These covers are under a bulg
niiidway between the ends of the elongated top‘
ing strain which brings: about a need for addi
tional fastenersbesides the two furnished by the
handle’andtthe elongated slat.
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These objects are attained with the construe-p
tion and by‘means of :the apparatus shown in
the accompanying drawings and described herein.
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such additional ~ - 1 Figure 2'- is an ‘end view of a fragmentary por
fasteners and are 20 tion'of said cover, facing said improved fastener,
fasteners may .;be termed-side
usually used in pairs, one'fastening to the basket
with-a fragmentary portion of the basket and
and the other to the cover. vSlatted covers of this
the fastener attached to said basket.
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‘Figure -3 is a vertical sectional view through the
type are usually assembled with the wire side
middle-‘of- the fragmentary‘ portion of said cover
isready for attaching to the basket thiscan be 25 and basket and the fasteners shown in Figure 2.
fasteners a?'ixed thereto so that when the cover
The tongue-member, that is the portion attached
accomplished with little loss of time.
I
. With the fasteners now in use, difficulty is en~>
countered in attaching-the side fasteners af?xed
to the basket to the side fasteners af?xed to the
cover. In order to overcome this difficulty, fas 30
teners have been made which protrude over the
edge of the cover. However, in view of the fact
that the covers are shipped in bundles, such pro
truding, fasteners become bent out of shape by
tojthe;basket,»is shown in full lines in the inserted
position and indotted lines in the locking position.
Figure 4 is a fragmentary top View of said cover
showingthe improved fastenerin proper position
in full lines and in the damaged vposition in dotted
lines‘;
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~ Figure 5 is an enlarged,-fragmentary top View
showing the improved fastener in the damaged
blows received during; shipment and, as the wire
position.
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fasteners must necessarily be made of a relatively
. Figure 6 is a vertical, cross.’ sectional View
stiff wire, the straightening of these fasteners re
through themiddle of the; fastener shown in vFig
quires considerable time as well as the. use of ‘
ure
mechanical instruments such as pliers. Moreover
with side fasteners: of this type considerable
trouble has been experienced in the fasteners
splitting the slats of the cover, and the cover be
coming loose after the basket is packed. It is evi
dent that any improvement that may be made in
these side fasteners, which will overcome all of
these 'dif?culties, will provide a marked advance
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Figural’? .is an enlarged, vfragmentary top view
40 cff‘vthe fastenenin proper position.
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"Figure. 8 .is a vertical, cross ‘sectional View
through the ., middle of ‘the fastener shown in
Figure'7..
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' Figures 9,710, and "11 are cross-sectional, per.-_
spective drawings of the parts of the machine
fastener and of they cover during the variousv ,
This invention has as its object to provide a
new ‘and improved‘ wire fastener. Another object
is to provide a new and improved protruding wire
stages of attaching the fastener to the‘ cover.
Figure 12 is a perspective View of the machine
which forms the wire fastener in to shape prior
to attaching same to the cover, said parts being
side fastener to be attached to a slatted coverfor
bushel baskets, or the like. Still another object is
in their near relative position, and separated
suf?ciently to show-the shape of'each part and
to provide a protruding wire fastener of stiff wire,
to indicate its operation.
in the art.
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Which‘when deformed, maybe easil'y'restored to
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_ In Figures 1 to 8, inclusive,,the reference numg
it's'original position without’ having to resort to 55 bers in each ?gure refer to thesame parts of the
2,411,813
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structure. The reference number 1 indicates the
slatted cover. The reference number 2 indicates
the basket. The cover l is constructed of wooden
slats 3 with an elongated top slat 4 having pro
jecting ends for the purpose of engaging in the
handles (not shown) of the basket 2. The cover
has a marginal hoop 5 to which the slats are at
tached. Midway between the elongated ends and
’ the slat It on the marginal hoop 5, the cover is
6 and is bent back as shown by the dotted lines
in Figure 3.
Referring to Figure 12, the parts in this draw
ing are in their near relative position, separated
just sufficiently to show the shape'of each part
clearly. DL and DR ?t against the ends of C
and EL and ER' slide down over the ?ns on DL
and DR. The ?ns on D. and the grooves in E are
the same size as the size of wire used to make
provided with the new and improved‘ protruding 10 the fastener. W represents the wire feed into the
wire fastener 6. This fastener 6 has a protruding
machine from the right. A is the cutter which
loop 1' which in its normal, usable position, pro-.
advances with BL and BR striking the wire ?rst
trudes over the edge of the cover. This loop may
and cutting off the correct, length to make one
be squared as shown or may have rounding edges
fastener.
and need not be affixed to the midway point,but
may be a?ixed at any point along the marginal
hoop 5 between the protruding ends of the slat 4.
The fastener has two arms, 8, which extend in
opposite directions from the end of the loop 1.
causing the wire to bend ?rst into the shape of
The right arm (looking at Figure 4) may be at an
angle between 45° and 90° clockwise from a line
parallel to and representing an extension of the
right side of said loop and the left arm may be at
an angle between 270°‘and 315° clockwise from a
line parallel to and representing an extension of
the left side of the loop 1. It is preferable that
the arms 8 extend in lines approximating that
of the hoop 5. As they are relatively straight,
they are of such an angle to each other that
they will be tangent to the circumference of a
circle having a diameter not greater than hoop
5 and not less than one-half the diameter of said
hoop when the fastener is in its normal position.
In Figure 4 the fastener i3 is shown in its normal
position by the drawing in solid lines, and in
sprung back position by the drawing in dotted
lines. This sprung position results when the
BL and BB carry the wire against C,
Ll. When BL and BB are fully advanced they
force the, wire tightly'ag'ainst the shoulder on C,
.DL and DR forming the shape shown by L2. EL
and ER then descend, bending the ends of the
wire down over the edges BL and BR to form the
?nal shape of the fastener, before being driven
into the cover, as shown by L3, BL and BB then
recede, leaving the fastener supported by C, DL,_
DR, EL, and ER. When BL and BE are in the
clear the cover is brought up from below as is
shown by Figures 9, 10, and 11.
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In Figure 9, T represents the table or anvil of
the machine into whichis placed-two inserts
designated by I, one for each leg of the fastener,
and through which two clinch pins, designated by
P, can-raise from below. The cover W is placed
over the insert I by the operator of the machine.
T raises, taking I and P in the same relative posi
tion with it, until it reaches the position shown
in Figure 10. As is shown by drawing, the leg
of the fastener L is driven through the cover slat
past the hoop 5 and guided across below the
hoop and into the slot above P. This is done by
loop strikes an obstruction such as the floor, at
the time the covers are being shipped, or when
the shape of the groove in the face of I. This
they are stacked on edge. Figures 5 and 6 also 40 groove is shown by the dotted line in Figure 9.
iii/‘hen I and W strike vC‘, a latch releases and T
show, in an enlarged form, the fastener B in a
sprung back position, while Figures 7 and 8 show
remains stationary while P continues to advance
to position shown by Figure 11. This rolls the
the fastener 6 in its normal position.
end of the loop tight around the bottom of the
Referring to Figures 7 and 8, the arms 8 of the
cover hoop ii. There is a groove in P, shown by
fastener 6 extend at Ifleast
onlyhalf-way
one slat across
is usedeach
in- '
dotted line, to allow the wire to pass when the
of the two slats 3.
pin slides up against the cover hoop 5. A small
stead of two, they ‘may extend practically across
kick off is provided to kick the loop loose from
the entire slat. These extended arms, when the
the end of C and, when T retards, the cover is
cover is in use, pull down across the top of the
slat, preventing the slat from'coming loose from . taken from the machine by the operator. In this
manner the new and improved wire fastener is
the marginal hoop ‘5. As they pull across grain,
they do not tend to split the slat. The fastener
made and attached to the cover.
6 with the extended arms 8 may be attached to
the cover by any conventional method. Figure 8
ments of this invention may be made without
shows a method found to be commercially prac- .
tical. Here the wire extends downward through
the slat 3 on the inside of the hoop 5—see 9—
across the bottom of the hoop 5—see 10--and
part way up the outside of the hoop 5—see 11.
The combination of the protruding loop with
the extended arms forms a fastener which, when
deformed or sprung back as shown in Figure 5,
As many apparently widely different embodir
departing from the spirit and scope thereof, it is
to be understood that this invention is not to be
limited to the speci?c embodiment-s. shown and
described.
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This application is a division of my copending
application Serial No. 413,997, ?led October 7,
1941, for Wire fastener and method and appara
tus for manufacture, now U. S. Patent No.
may readily be pulled into the usable position of
2,357,290, issued September 5, 1944.
Figure '7 without the use of pliers or other me
chanical instruments, regardless of how stiff the
wire is. The wire from which these fasteners
I claim:
'1. A method of forming and attaching a pro
truding wire side fastener to the top of a slatted
are to be made is preferably of a gauge within
the range of 14 to 1'7 and of the type known as
prises cutting a piece of wire to proper length,
bright stapling wire when the fasteners are to
be used on slatted covers for bushel baskets, or
the like.
Figures 2 and 3 show the fastener in use. The ‘
cover for a bushel basket or the like which com
causing the wire to bend so as to form a v-like
shape with a flat base, forcing the flat base be
tween two parallel plates in a direction parallel
to the surfaces of said plates, said base being held
perpendicular to said surfaces thereby forming a
tongue-like fastener 52 attached to the basket 2
U-shaped loop at the vertex of the angle made
passes up through the loop 1 of the cover fastener 75 by the V-shaped arms, bending the ends of the
2,411,813
arms in an opposite direction but horizontal po
sition while maintaining the entire shape in one
plane, then bending the ends of the arm down
ward perpendicular to said plane, forcing the
perpendicular ends through the top of the slatted
cover adjacent to the inner circumference of its
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' v-like arms, means for bending the ends of said
arms ?rst into a horizontal position whereby
they extend in opposite directions and the entire
.shape is in one plane and then bending said ends
downward along the line perpendicular to said
plane, means for holding said shaped wire fas- '
marginal hoop and bringing said ends under and
tener in a stationary position with the ends of
around said marginal hoop to the outside, there
by fastening said wire-Wide fastener to said cover.
each arm projecting downward, an anvil shaped
2. A machine for forming and attaching a new
and improved wire fastener to a slatted cover for
a bushel basket or the like which comprises in
combination a cutter, means for bending a wire
so as to ?rst form a V-like'shape with a ?at base,
so as to hold in position a slatted cover and pro
vided with two clinch pins designed so that they
may be raised from below, means for raising the
anvil so that the ends of the wire fastener may
be driven through the slatted cover, means for
then bringing up the clinch pins from below
means for forcing the Wire between two plates 15 so as to clinch the wire around the marginal
hoop of said slatted cover, thereby fastening said
with parallel surfaces in a direction parallel to
Wire fastener to said cover.
said surfaces while holding the base perpendicu
lar to said surfaces, thereby forming a U-like
CONRAD ' B. SCHWARZ.
loop at the vertex of the angle formed by the
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