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Патент USA US2121468

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A June 21,1938.
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@2,121,468
SIZING METHOD AND MACHINE
OLIVER? E. Ci/BSQN . -
June 21,1938..
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2,121,46@
SIZING METHOD .AND` MACHINE
Filed Dec. 25. 1955
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2 sheets-sheet '2
¿7505527
Patented June 21, 1938
2,121,468 - *
UNITI-.1o “STATESv
PATENT ~ ori-"lcs
2,121,488
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SIZING METHOD. AND MACHINE ` '
'Oliver E. Gibson, Chicago, Ill., assigner to United
`
States Gypsum Company, Chicago, Ill., a cor- `
poration ot Illinois
_Application December 23,1935, Serial No. 55,751
12 Claims. ` (Cl. 164-65)
This invention relates to sizing methods and
machines, and has reference more particularly to
a method of and machine for changing the Width
of sheets of flattened expanded metal to a size
suitable for welding to steel shelf frames.
In the manufacture of shelves for mechanical
refrigerators', stoves,-etc., such as those‘disclosed
in patent to A. C. Griffith,- No. 1,961,144, it is dif
flcultto roll the expanded metal f_iat so that the
10 finished size is such that the bonds lie directly
over the frame bars to which they are welded.
To produce this result, it is desirable to employ a
i sizing operation subsequent to the rolling opera
tion, so that the bonds register precisely with the
1a
frame bars to which they are welded.
.
An object of this invention therefore, is to pro
` vide a method of changing the width of a sheet
panded metal 24 which is to be sized. Each of
the pins 22 and 23 engages in one of the loops of
the flattened expanded metal so that when the
slidable bar 2| is moved toward or away from the
fixed bar 20, the width of the expanded metal 24|V 5
is decreased or" increased respectively to exactly
the width desired in the ñnished sheet so that the
bonds of the metal register exactly with the shelf .
frame 26 to be welded thereto to form the finished `
shelf.
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In order to` move the bar il longitudinally of
`the slats 10,1 provide rock shafts 2l and 2t which
are rotatably mounted in bearings 29 secured to
the framework of the machine by bolts .30. Levers
3| and 32 are secured to the shafts 2l and 2d, 15
and connecting rods t3 and 3d _connect the levers
di and 32 to clevises tti and it, respectively,
of flattened expanded metal subsequent to the ‘ which are connected by bolts 'il to opposite ends
flattening operation. so that the bonds will reg
20 ister exactly with a steel frame to which they are
subsequently welded.
'
of the bar 2|. The shafts il and it are main
tained in coaxial alignment by a section it on'the 20
inner end of shaft 2B which rotatably telescopes
into a bearing holed@ `formed in the inner end of
machine suitable for carrying out the above sizing shaft il. 4 An operating-lever 4| is secured to the
method; also to improve sizing methods and ina-Á` - inner end of shaft 2l and extends closely ad
25. chines in other respects hereinafter specified and jacent a similar lever tt which is secured to the 25 ‘
inner end of shaft it. An outstanding handle di
Reference is to be had to the accompanying _is secured to the outer end of vlever di and a
drawings forming a part of this specification, in handle it is secured to the outer end of lever dit
so that the two handles il and tt are normally'in
30
Fig. 1 is a plan view of my improved machine coaxial relation. A locking pin it extends co- 30
Another object .-of the inventionfis to provide a
claimed.
which
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for sizing flattened expanded metal,
'Fig 2 is a sectional elevation through the ma
chine taken on line 2_2 of Fig. 1,
-lF‘ig. 3 is a sectional elevation through the ma
35 chine taken 'on line 34-3 of Fig. l,
Fig. i is a fragmentary sectional view taken
through the operating levers of’ the machine, and
axially through the handle M, its inner end nor- '
mally engaging in a receiving socket tt formed in
the inner end of handle di so as to keep the two
handles in coaxial relation to mo‘ve'both ends of
baril an equal distance when Athe levers di and 35
‘l2 are rocked, thus causing both endsy of the strip
of expanded metal it to be stretched or com
pressed equally. In some cases due toirregulari
Fig. 5 is perspective view of a iinlshed shelf
made by the use of the sized flattened expended ~ ties in the rolling or flattening operation, it is nec
-40
essary to change the width of one end of the strip 40
My' improved sizing machine consists of a 2t slightly more than the other end to insure]
plurality of spaced slats I0 of metal orother ma
that the bonds'on each edge of the strip will re~
terial. which form a table, the ends of said slats turn to exactly parallel relation` after the levers
being secured on frame members il and i2. 4| and 42_release the pins 23. To 'accomplish
45 Vertical standards i3 support the frame members this, the pin 45 is withdrawn from the socket tt 45
Il and i2 on the floor i4, said standards being `by manipulating a head it on the outer end of
provided with horizontal brace members l5 some
pin t5, the.outer movement of >said pin being>
what above the floor. . Edge slats i6 and Il of limited by a stop pin 49 operating in a slot 50
the table are spaced above angle frame'members formed in the handle 44. The levers 4| and 'i2
50 I8 and I9, respectively, to receive the ends .of a may then be rocked independent-ly to provide the 50
fixed bar 20 and a slidably mounted bar 2i. A exact sizing result desired. 'I'he workman prefer
series of fixed pins 22 are secured to the bar 2l), ably makes suitable marks or indicia on the tops
and a series of pins 23 are secured to the bar 2|, of the slats Ill to indicatel the finished width of
said pins extending upwardly between the slats the strip 24 which is desired and the levers 4| and
ID to receive the edges- of a strip of flattened ex
42 are manipulated until this finished width is ob- 55 l
metal.
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2,121,468
2
to rock independently so as to change the width
of each end of said sheet to a predetermined de
gree, and means for interlocking said levers to
tained, either by compressing or stretching the
strip as needed. Connecting rods 33 of different
lengths may be substituted in the machine when gether to rock in unison.
‘
expanded metal strips 24 of substantially dif
7. In a machine for sizing a sheet of flattened
ferent widths are to be sized. This method of. expanded metal, fixed means for holding one edge
`sizing produces strips of flattened expanded metal of said sheet, movable means for engaging the
in which the bonds on opposite longitudinal edges opposite edge of said sheet, and means for inde
are exactly parallel to register exactly with the pendently actuating the opposite ends of saidv
shelf frame 26 to which they are welded.
movable means to change the width of each end 10
I would state in conclusion, that while the illus
10
of said sheet to a. predetermined degree.
trated example constitutes a practical embodi
8. 'I'he art of manufacturing shelves of fiat
ment ofI my invention, I do not wish to _limit tened expanded metal, which comprises provid
myself precisely to these details, since manifestly ing a peripheral frame vmember of.metal, roll
the same can be considerably varied without de
ing a sheet of expanded metal to flatten the
parting from the spirit of the inventionY as de
bonds and strands to produce a sheet having
ñ'ned in the appended claims.
an varea somewhat different than the area
Having thus described my invention, I claim of said frame member, sizing said sheet of fiat
as new and desire to secure by Letters Patent:
tened expanded metal to an area substantially
l. The method of producing a sheet of sized equal to that of said frame member, by apply -20
iiattened expanded metal, which method includes ing to the edges of said sheet transverse forces
applying along opposite edges of a sheet of fiat
acting in the plane of said sheet, said forces be
tened expanded metal, transverse forces acting ing proportioned in directions, points of applica
in the plane of said sheet, said forces being pro
tion and magnitudes to shape said sheet to said
portioned in directions, points of application and size and area and securing the edges of said 25
magnitudes to shape said sheet to a predeter ysheet to said frame member.
mined size.
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9. 'I‘he method of. forming sized sheets of fiat
2. The method of producing a sheet of sized tened expanded metal, which comprises slitting
flattened expanded metal, which method includes a sheet of metal to form strands and bonds,
_applying at a plurality of- points. along opposite stretching said sheet to open the meshes and 30
30 edges of a sheet of flattened expanded metal,
transverse forces acting in the plane of said sheet,
said forces being proportioned in directions,
points of application and magnitudes to shape
said sheet to a predetermined size.
35.
,
flatten the bonds and strands, and again stretch
ing said flattened sheet yby applying at a plu
rality of points along opposite edges of said sheet,
transverse forces acting in the plane of said 35
3. The method of producing a sheet of sized sheet, said forces being proportioned in direc
flattened expanded metal, which comprises flat
tening expanded metal so that all bonds -and
strands lie in substantially a single plane, and
applying transverse forces acting in the plane
of said sheet at each end thereof, said forces
being so proportioned in directions and magni
tudes as to change the width of each end of said
sheet to fit a peripheral frame member.
4. In a machine for sizing a sheet of flattened
45 expanded metal, a series of fixed pins for engag
ing one ledge of said sheet, ~a slidably mounted
bar having a series of pins for engaging the op
posite edge of said sheet, and means for mov
ing each end of said slidable bar independently
50
produce expanded metal, rolling said sheet to
of the other end so as to independently change
the width of each end of said sheet to a pre
tions, points of application and magnitudes to
shape said sheet to predetermined size and area
equal to that of a peripheral frame member.
l0. The method of producing sized sheets of
flattened expanded metal, which comprises flat
tening expanded metal by rolling, and subse
quently stretching or compressing the sheet as
the cas‘e may be by applying at a plurality of
points along opposite edges of said sheet, trans
verse forces acting in the plane of said sheet,
said forces being' proportioned in directions,
points of application and magnitudes to shape
'said sheet to predetermined size so as to fit a
peripheral frame.
.
1l. The method of producing sized sheets of
flattened expanded metal produced by rolling
standard expanded metal, which comprises com
pressing the sheet by applying along opposite
edges of said sheet. transverse forces acting in
the plane of said sheet, said forces being pro
55 gaging one edge of said sheet, a slidably mount
ed bar having a series of pins for engaging thel portioned in directions, points of application and
determined
size.
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5. In a machine for sizing a sheet oi'ilattened
expanded metal, a series of fixed pins for en
opposite edge of said sheet, a pair of rock levers,
a link connecting each of said levers With an
end of said slide bar, and means for ycausing
60 said leversto rock independently or in unison
so as to change the width of said sheet to a pre
determined size.
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f
6. In a machine for'sizing a sheet of flattened
magnitudes to shape said sheetl to a predeter
mined size so as to fit a peripheral frame. '
12. In a machine for sizing a sheet of flattened
Aexpanded metal, means for holding each edge of
said sheet, and means for independently chang
ing the distance between said holding means at
each end thereof so as to stretch or to contract
expanded metal, a series of~flxed pins for' en . said sheet as the case may be, so that the width m
gaging one edge of said sheet, a slidably mount
of- said sheet is changed to a predetermined
ed bar having a series of pins for engaging the
i
opposite edge of said sheet, a pair of rock levers, degree'.4
OLIVER E. GIBSON.
a link connecting each of said levers with an
`end of said' slide bar, said levers being adapted
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