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Патент USA US2115423

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26, 1938.
c. KoRvER
METHOD'VANDEDEYVICE FOR TRANSPORTING WYIRES
Filed April 25, 1955
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Patented Apr. 26,7_1’938
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UNITED " _STATES Nrn-:NTA OFFICE ,
‘
2,115,423
./1
'
y
-
Cornelis Korver, Eindhoven, Netherlands, assign
or to N. V. Philips' Gloeilnmpenfabrieken.
Eindhoven, Netherlands
«
Application April 28. 1935, Serial No. 18,457
.In Germany May 18, 1934
11 Claims. V(Cl, 22,6-l9)
My invention relates to a method and device
ñcient internal strain to assume the desired curl
for transporting wires, and more particularly for
transporting wires having small mechanical
lng upon entering the space, and to‘permanently
retain such curling. In case the wire has insuf
strength.
ilcient internal strains to assume such curling
1
5
My invention is particularly well adapted for
introducing a thinwire illling into ilash lamps
of the type described in the copending U. S. application of van Liempt Ser. No. r123,008, ñled
April 28, 1934, and will be described in connec10 tion with such lamps; however, its use is not
limited thereto.
It is very difficult, if not impossible to transport, for example through a tube, a, wire having
a small absolute mechanical strength, for inl5 stance a tensile strength of 40 grams or less, by
means of a pressing or pushing action and without the use of a drawing or pulling action.
However, there are many instances in which it
the required internal strains may be imparted 5
thereto before it is carried into the limited space,
for instance by drawing the wire‘over'an angular
As‘has been stated above, the invention is par
ticularly well adapted for placing a fine filling 10
within ilash lamps. Flash lamps manufactured
in accordance with the'invention have the im
portant advantage that the combustion is so
complete that a maximum yield of actinic light
is insured. Due to such complete combustion the 15
objectionable phenomenon of molten unburned
metal particles being thrown against the wall of
the bulb and causing bursting of the bulb, which
is desired to transport or carry such a wire and
m in which the conditions are such as to render it
' impossible to use a drawing action. In such instances a pressing or pushing action has t0 be
frequently occurs in the case of incomplete com
bustion, is also avgided,
_
2
To obtain complete combustion 1n prior art
lamps, a large excess or oxygen was used; i. e.
used~ For example, when it 1s desired to provide
greatly more than theoretically required; in dash
. a hollow body with a iilling of a fragile wire.
25 and more particularly when it is required that the
lamps manufactured according to thelnve'ntion
the provision of much excess oxygen is unneces- 25
W'u‘e be distributed unuoruuy Within Such u muy’
a pushing or pressing action is required.
In accordance with the present invention the
sary, and therefore a comparatively low-pressure
gas mung can be used"y This has the further ad
vantage that the danger of the bulb bursting
transportation of a w'lre of small absolute
30 Strength into u uuuted space is eueuteu by
35
dnl-.ing the combustion is also eliminated.
The ilash lamps manufactured in accordance 30
means of a gaseous medium which medium car-
with the invention have a very short «_.nash_
ries the Wire along with Ít- Furtuermore’ the
Wu'e 5° carried cau be distributed with great uni‘
formity and in a curled state within the'limited
time”, for instance 1/40 sec. or even less. and '
also a very short “contact time", for instance 1/25
se“ in addltionlthe Hash lamps made in M_
Space.
.
‘
’
35
By. “wires” as used herein is meant not only
ärgîaläepwgotâluïäognëintgoäëâïyblînräìîäfìfäärsâ?
metal wires, but also glass wires, artificial silk
'Wires and the uke'
In addition to transporting the Wire’ the gas
time, and „Contact time.,
'rn term "contact unie" is to be understood
4o use
d as carrying means also has a straightening
to meean the lapse of time between the instant at
which current is supplied to the bulb and the in
zfts; 4:sie :s sazfsaäzsz‘lïuzë‘ässrë ses a who the
travel such as the wire touching the inner sur'
‘
face of the tube through w'hich it is being trans
_
45 ported.
y esnlts are obtained when
Particularly- g°°d r
itâ;
the incoherent medium is
guion opens into the limited
31u5-
of
40
e
`
Claims directed to hollow bodies and flashlight
lamps produced in accordance with
the method of
the present invention are made 1n my copending
application ser. No. 91,003, sied July 16, 1936.
In Order that the invention may be clearly
space and in which the tube openings for the inlet
0 of the wire and of the gas are so located and
` dimensioncd with respect to its outlet opening
into the limited space, that the rate of ñow of
^ the medium is reduced upon entering this limited
understood and readily carried into eiîect, it will
be described more fully with reference to the 50
accompanying drawing, in which,
Fig. 1 is a partly sectionized side view of a de
vice suitable for carrying out the invention, and
space.
`
As a rule. auch thin wires inherently have suf-
showing a ilash _lamp bulb being illled with iìne
wire;
v,
,
55
2
2,115,493
` Fig. 2 is a sectioniaed view of Fig. l taken on
the line I-I of Fig. 1:
Figßisaviewofatinishediiashlamphaving
a wire filling placed therein.Referring to Figs. l and 2, a flash lamp bulb I
containing a thrust bearing I0. Secured to one
side of the pulley is a friction ring I8, for a pur
pose later to be described.
The pulley Il is Y
câontinuously rotated during the operation of the
evice.
-
~
Rotatably and slidably mounted on the shaft
having a glass envelope comprising a neck por
Il is a bushing 8 having fixedly secured at one
tion II, is arranged with its neck portion ex
tending over a portion of a guide tube l. The end, by means of a pin 66, a flanged disc-9.
bulb is shown in the process of being filled with Arranged on the bushing 8 so as to move there
with-and with the ñange 9-is a spool 1 upon 10
10 a thin wire 2, having an absolute tensile strength
of >about 25 grams; the wire passing through the which is wound a supply of the wire 2.
Secured to the base plate 2| by screws 61 is an
guide tube l. The guide tube I is formed on its
end removed from the bulb. with a small funnel _ angle bracket 68 having secured to its upstand
shaped aperture I and on its other end with a ing leg, a pad III of friction material. In the
position shown the disc 9 is forced against the
15 portion i of enlarged diameter, and is also pro
vided with an extension Il through which enters pad Il by a compression spring i1 acting through
the incoherent medium, for instance compressed the thrust bearing I6 upon the pulley il, thus
_ causing the disc Q/bushing 8, and reel 1 to remain
at rest.
The compressed air ñows in a direction indi
Arranged with a free fit over bushing 0 and 20
20 cated by the arrows I2 from a source of supply
(notshown) through an' inlet l' to a control bearing with one side through a thrust bearing
valve V (see Fig. 2), later to be more fully I5 upon the side of spool 1, is one end 22' of
described, throughvthe valve V and tubes 5 and an arm 22 whose other end is iixedly secured by
means of a pin 1I to a rod 23 carrying at one
50 into the guide tube l.
25
In starting the operation of placing the wire
end a push button 24.
25
,
The rod 23 is suitably guided so as to have
into the bulbl a short end-portion of the wire 2
is ñrst treated to remove any internal strains and 'axial movement-_as indicated by the double
consequentlyvto eliminate any tendency of this headed arrow-by two projections iii-5I of a
portion to coil; this being done, for example, by
30 heating the wire, ~for instance in the case of
magnesium wire. by annealing the portion of the
wire at a temperature of from 300 to 400° C. for
about ñve seconds. 'I‘he wire portion so treated
is thenled through the aperture 'I to extend a
35 short distance into the guide tube l so that,
upon admittance of the incoherent medium, the
wire 2 will be transported along the tube and into
the bulb I.
.
The construction of aperture I causes sub
40 stantially the entire compressed air stream to
flow towards the bulb I and then to pass to .the
outside along the space formed between the tube
I and the neck portion II, as indicated by the
arrows. 'I‘he compressed air flows through the
45 tube I with considerable velocity and causes the
_ wire 2 to be carried into the bulb, and at the
same time tends to straighten the wire while
in the tube l. As a result the feeding of the
wire into the bulb wilLtake place in a continuous,
50 uninterrupted operation without the formation
of wire pellets within the tube l. caused by fric
tion due to the wire coming into contact with
the tube wail.
.
Due to the tube being enlarged at B, the velocity
compressed air in tube portion i is greatly
55 ofthe
reduced, which causes the wire 2 to assume
its natural curling and to uniformly ñll up the
bulb I.
`
The supply of wire `2 and the control of the
80 flow of the compressed air to tube I takes place
by means of a device A; the parts of which are
mounted on a'common base plate 2i. The device
A consists of a bearing block I9, secured to the
base plate 2| by means of four screws I9' and
supporting a shaft Il, which shaft is ñxedly se
cured to block I9 by a set screw 2II. Rotatably
mounted upon the shaft Il is a pulley I4 having
two V-shaped grooves 10--1Iç groove 1II serving
to drive the pulley by means of a belt from a
70 driving source (not shown), for example from an
electric motor, and the groove 1I serving for a
Purpose later to be described.
°
The pulley il is provided on one side with a
boss 65, acting as a bearing` against the block I 9,
75 and on its other side with a counterbore 90
supporting bracket II, which bracket is secured
to the base plate 2| by means of screws 80. 'I‘he 30
projection 5I also serves as the valve V, which
controls the iiow of compressed air to the tube I
and for this purpose is provided with passage
ways 26 and 26' through which may flow the
compressed air.
35
'I‘he rod 23 is provided with a portion 25 of
reduced diameter, which, when the rod is in the
position shown by the dotted lines, connects the
passageways 28 and 26', and thus permits the
flow of air. In the position shown the> rod 23 40
intercepts the passageways 26-26', and thus
prevents the flow of air.
,
' .
Upon movement of the push button ZI-and
rod 2I--in the directionindicatcd by the arrow
15, the end 22' of arm 22, acting _through thrust 45
bearing I5, moves the reel 1-together with the
bushing l and disc' Q-against the compression
of spring I1. If the push button is moved into
the position indicated by the dotted lines, flange"
9 will assume the position shown in dotted lines
with its surface in contactwith the friction ring
Il. Thus iiange s-together with the bushing
I and reel 1---wilI` be driven by and rotate with
the pulley Il. This movement of the push but
ton 24-and the rod 22-also brings the reduced
portion 2l into augment with the passageways
'26 and 2i' and interconnects same to permit the
ilow of compressed air to the tube 4. The re
duced portion 25 is so located on the rod 23 that
the interconnection of passageways 26 and 2li',
and thus the flow of air. takes place 'before the
flange 9 contacts with the friction ring I8; i. e.,
before the reel 1 rotates and the supplying of
the wire 2 begins. _
«
Secured to the base plate 2| ,'by screws 9i is
a supporting block 30 having rotatably mount
ed thereon a shaft 29. Fixedly secured to the
shaft 29y by a pin 92 is a grooved pulley 21,
which pulley. together with the shaft 29, is
driven by a belt SS-indicated by a dot-dash
line-from the groove 1I of pulley Il. Secured
to a reduced portion 56 oi' shaft 2! by means of
a nut II is a drum 2l having a surface 28', over
which is drawn the wire 2.
The drum 28 is so driven from the pulley Il
ç '9,115,423
_
that the peripheral speed of the surface 2l' is
greater-for instance 10% to 15% greater-than
the greatest speed at`which the wireleavœ the
reel‘l. Duetothisincreasedspeedthereisa
certain amount of sliding friction between the
conditions, when using compressed air at an
portion between thedrum 2l and reel 'I under
tension, and thus insures that the unwinding of
the wire from the reel 'I proceeds at the desired
'I‘he flash lamp Is provided with the two terminal
over-pressure of two atmospheres, the wire moves
at therateofaboutlxueterpersecond.v
v
A 'flash lamp filled in this manner'is illustrated
in
3 »and comprises a bulb Il containing a
wire 2 and the surface 2l', which keeps the wire ‘_ wire filling Il Aof theabove-mentioned material.
speed.
If the wire 2 does not inherently possess sum
cient internal strain to receive the desired curl
ing upon entering the bulb, the desired internal
strain may be imparted to the wire, and for this
Í15 purpose a device C is provided.
, '
wires 31-41 connected with one end to the ter
minals of base Il and carrying at their other'en'ds
a filament ll provided with an ignition mixture
I! consisting, for' example, of a pulverized metal.
for instance aluminum, an oxidizing agent, for'
instance lead dioxide, and a binder,v for in
stance nitro-cellulose or sillceous varnish. The
bulb I! contains a gas filling of oxygen at a pres
'I‘he device C consists of‘a rod 3l having a di-V sure of 5S atmosphere.
„
ametrical and axially-extending slot 32 (see Fig.
While I have described my invention in con
i) through which passes the wire 2;'the rod 34 nection with specific examples, and in specific
' being supported by a bracket Il secured to the
20 base plate 2I. 'I‘he rod Il is supported so as to
- applications, I do not wish to be limited thereto,
but desire the appended claims to be construed 20
be adjustable about its axis and adapted to be,
as broadly as permissible in view oi’ the prior art.
What I claim is:
set screw il. 'I'hus the rod 3l .can be secured in
_1. A method of introducing into a limited space
the desired position with the slot 32 at the cor- . an -internally-strained wire of small mechanical
secured in the desired position by means'of a
rect angles to give the wire the desired amount
of curling power.
With the push button 2l pushed in, both the
wire and the compressed air is being supplied to
the tube 4 and the bulb becomes filled with the
30
wire.
`
After the bulb I has been filled with the de
strengthfcomprising the steps, transporting the
wire into'the space by a stream of gas, and dis- Y
trihuting the wire in a curled condition and as
uniformly as possible throughout the space by
the flow of gas therein.
, 2. A method of uniformly filling a hollow body
closed except for a single aperture, with an in
sired length of wire, the push button 2l is re
,ternally-strained wire of small mechanical
strength, comprising the steps of carrying the
friction disc I8 by the spring I'I and is immedi
wire through the aperture and into the hollow by
35 ately placed into contact with the friction-pad a.' stream of gas leaving through another portion
I Il, which stops the movement of the reel 'I and of the aperture, and distributing the wire in a
the supplying of wire to the tube I. Such re
curled condition and as uniformly as possible
leasing ofl the push button also causes the rod within the hollow by the recurrent ñow of the
23 to interrupt communication between the pas
gas therein.
sageways 26 and 26', and thus interrupts the
3. A method of introducing into a limited space
~supply of compressed air. Due to the disposi
an internally-,strained wire having a perimeter
tion of the portion 25 on the rod 423, the supply of less than _300 microns, comprising the steps,
leased and the disc 9 is disconnected ‘from the
of air continues until after the reel 1 has come
to rest. Subsequently the bulb I is moved to
the right and the wire is severed by means of a
suitable cutter, indicated by II. '
Various factors influence the operation, for
instance, the peripheral speed of the reel 1 ; the
internal diameter >and length of tube 4: the speed
50 of the compressed- air through' the tube; the
diameter and length of .the end portion 8; as
« well as the sizes of the bulb and of the neck
portion II. These factors have to be selected
. with regard to the speciñc properties of the par
55 ti'cular wire used in order that there be no bunch
ing or bundling of the wire while filling; i. e. that
the density of' the filling be substantially equal
throughout- the bulb, and in addition, that
the wire-filling elastically bears against the bulb
wall and is immovable within the bulb.
transporting the wire into the space by a stream
of gas, and distributing the wire in a curled con
dition and as uniformly as possible within the
limited space by the recurrent flow of gas there
in.
'
4. A method of introducing a fragile wire into
a limited space, comprising the steps, imparting
internal strains to the wire, transporting the
strained wire in_to' the space by means Vof a stream
of gas, and distributing the wire in a curled con
dition.v and as uniformly as possible within the
limited space -by the recurrent flow of gas therein.
5. A method of uniformly filling a flash lamp
bulb with an internally-strained wire which is
combustible with the emission of strong actinic
light, comprising the steps, transporting the‘wire
into the hollow of the bulb through a single
opening by means of a stream of gas, and distrib
For'example, in the case of a speclilc flash
lamp having a content of about 100 c. c. and an >uting the Iwire in a curled condition and as
, external diameter of about 55 mm., 10 meters of .
~ wire having a diameter of 35 microns and con
05 sisting of an aluminium-magnesium alloy con
taining 8% magnesium,- are used. In such lamp
dimensions and factors the following were found
satisfactory:` 'I'he neck portion Il having a
length of'about 50 mm. and an external diameter
70 of about 30 mm.; the guide tube I having a total
uniformly as possible within the hollow of the
bulb by the recurrent flow of the gas therein.
‘ 6. Amethod of uniformly filling a hollow con
tainer‘having a single aperture with an inter
nally-strained fragile wire, comprising the .steps,
introducing by means of a stream of a gas the
wire through >the aperture and into the hollow
of the container, and luniformly distributing the
wire in a coiled condition within the hollow by
length of 170 mm. and the portion I a length of
40 mm.; the opening of the aperture l having means of the recurrent iiow of the gas therein.
7. A method of introducing a fragile wire into
a diameter of about'0.l2 mm.; the diameter of
the tube about 1.9 mm.; and the widened por-~~k a limited space, comprising the steps, introduc
tion l a diameter of about 13 mm. Under these e" ing the wire intoa tube emptying into said space, n
52,115,493
4
transporting‘the? wire through the tube and into
of the gas is reduced before andupon leaving
the space by means of a gas, and reducing the
rate of flow ot the gas before and after entering
the space to uniformly distribute the wire in a
curled condition within the space.
8. A device for introducing an internally
strained fragile wire into __a-limited space, com
prising a guide tube having an outlet opening
for the gas and wire, an' inlet opening for the
the tube.
10. A device for introducing a fragile wire into>
gas, and an inlet opening for the Wire, means
'to produce a continuous flow of gas through the
.tube toward the outlet opening, and means to
a limited space by means of a stream of a gas,
comprising av guide tube for the wire and for the
Sas and having a. common outlet opening for
the gas and wire, means to produce a flow oi' the
gas through said tube toward the outlet opening,
and means to supply the wire to the tube includ
ing means to internally strain the wire.
10
11. A device for introducing a fragile wire into
a limitedspace by means oi' a gas, comprising a.
`supply the wire to the wire-inlet opening. '
guide tube for the wire and for the gas. said tube
9. A device for introducing a fragile wire into
an internally-strained limited space by means of
a stream 'of a gas, comprising a guide tube for
gas and an outlet opening for_both the wire and 15
the gas, means'to supply the wire to the wire'
the wire'and for the gas, said tube having inlet
openings for the wi're and for the gas and en_
outlet opening for both the -wireand the gas,
said inlet openings being spaced back from
said outlet opening, means to supply the wire
to the wire-inlet opening. and means to supply
^ the gas to the gas-inlet opening, the openings in
the tube being so formed that the rate of iiow
>
having inlet openings for the wire and for the f
inlet opening, and means to produce a iiow of
the gas from the gas-inlet opening to the outlet
opening including a devicev for controlling the
ilow of the gas to the tube, said deviceA being so
interconnected with said Wire-supplying means
that the iiow of the- gas is initiated before the
supply oi’- wire starts, and is terminated after.
the supply of wire ceases.
Disclaimer
_
CORNELIS KORVER..
l
2,115,423.--Uom'elís Korver, Eindhoven, Netherlands. METHOD AND DEVICE non
TRANsPoRTING WIRES. Patent dated Apr. 26, 1938. Disclaimer filed June
9, 1950, by the assignee, Hartford National Baak and Trust Company.
Hereb makes dîsclaimerof claims 1, 3, 4, 7,'8, 9, 10, and 11 of said patent.
[
‘ Gazette July 4, 1.950.]
52,115,493
4
transporting‘the? wire through the tube and into
of the gas is reduced before andupon leaving
the space by means of a gas, and reducing the
rate of flow ot the gas before and after entering
the space to uniformly distribute the wire in a
curled condition within the space.
8. A device for introducing an internally
strained fragile wire into __a-limited space, com
prising a guide tube having an outlet opening
for the gas and wire, an' inlet opening for the
the tube.
10. A device for introducing a fragile wire into>
gas, and an inlet opening for the Wire, means
'to produce a continuous flow of gas through the
.tube toward the outlet opening, and means to
a limited space by means of a stream of a gas,
comprising av guide tube for the wire and for the
Sas and having a. common outlet opening for
the gas and wire, means to produce a flow oi' the
gas through said tube toward the outlet opening,
and means to supply the wire to the tube includ
ing means to internally strain the wire.
10
11. A device for introducing a fragile wire into
a limitedspace by means oi' a gas, comprising a.
`supply the wire to the wire-inlet opening. '
guide tube for the wire and for the gas. said tube
9. A device for introducing a fragile wire into
an internally-strained limited space by means of
a stream 'of a gas, comprising a guide tube for
gas and an outlet opening for_both the wire and 15
the gas, means'to supply the wire to the wire'
the wire'and for the gas, said tube having inlet
openings for the wi're and for the gas and en_
outlet opening for both the -wireand the gas,
said inlet openings being spaced back from
said outlet opening, means to supply the wire
to the wire-inlet opening. and means to supply
^ the gas to the gas-inlet opening, the openings in
the tube being so formed that the rate of iiow
>
having inlet openings for the wire and for the f
inlet opening, and means to produce a iiow of
the gas from the gas-inlet opening to the outlet
opening including a devicev for controlling the
ilow of the gas to the tube, said deviceA being so
interconnected with said Wire-supplying means
that the iiow of the- gas is initiated before the
supply oi’- wire starts, and is terminated after.
the supply of wire ceases.
Disclaimer
_
CORNELIS KORVER..
l
2,115,423.--Uom'elís Korver, Eindhoven, Netherlands. METHOD AND DEVICE non
TRANsPoRTING WIRES. Patent dated Apr. 26, 1938. Disclaimer filed June
9, 1950, by the assignee, Hartford National Baak and Trust Company.
Hereb makes dîsclaimerof claims 1, 3, 4, 7,'8, 9, 10, and 11 of said patent.
[
‘ Gazette July 4, 1.950.]
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