baber/WOPTO huggingface dataset:
Patent EP-1081941-A3 (EP)
Inventor: WAYNE DAVID
IPC: H04N1/028
Filed: 2000-08-24
Abstract: A self-compensating correlated double sampling circuit for a pixel
image signal and a method to process the same are disclosed. In the
circuit, the analog signal generated by the photosensor of the pixel array
accessed by a row selection transistor is buffered through a source
follower amplifier and coupled to a column in the array. The analog
signal from the selected column line is fed through a CDS circuit which is
then input to the sample and hold circuit of the ADC. The main purpose
of the CDS circuit is to reduce the noise and non-uniformity caused by
the non ideal effects associated with the signal path from the
photosensor through the CDS circuit. This is accomplished by sampling
the signal and a reference level and then performing the subtraction on
the two samples and the ADC ramp through the same signal path.
Patent EP-1106451-A3 (EP)
Inventor: LANDMANN ALFRED
IPC: B60R25/02
Filed: 2000-09-18
Abstract: The device is unlocked by an electronic key and has a blocking element (2) for the steering spindle and a rotor (4) rotatable into and out of a starting position to lock and release the spindle by reciprocally moving the blocking element. The rotor can only turn to the release position when an identification signal from a key is identified as correct. An electromagnet (6) in the stator (1) is coaxial to the rotor, which is coupled to the stator under spring load in its starting position and which is axially movable in the stator by an electromagnet against spring force to release the coupling between the rotor and the stator. Independent claims are also included for the following: an electronic starter switch for a motor vehicle.
Patent EP-1086883-A3 (EP)
Inventor: MIESLINGER STEFAN
IPC: E05D5/02
Filed: 2000-09-20
Abstract: Befestigungsvorrichtung für Scharniere von Türen, Klappen oder
dergleichen von Fahrzeugen, wobei die Befestigungsmittel aus mindestens einer
Schraube (28) oder dergleichen, einer Spannhülse (16) und einer Mutter
oder dergleichen (25) bestehen und wobei über die Schraube (28) und die
Spannhülse (16) eine Vorspannkraft auf den Tür- oder Öffnungsrahmen oder
dergleichen (2,3) in Höhe der seitlichen Enden (19,20) des ebenen Abschnittes
(8) des ersten Scharnierflügels (9) im montierten Zustand einstellbar
ist.
Patent EP-1100052-A3 (EP)
Inventor: DROEGE HARTMUT
IPC: G07F7/10
Filed: 2000-10-06
Abstract: The present invention relates to electronic purse systems, and in
particular it relates to the improved management of multiple
money flows in such systems. 
     According to the basic principles of the present invention it is
proposed that the secure Access Modules (SAMs) of a purse
provider support multiple user groups or environments in the
system while still requiring only one system key. The user
groups or environments are identified by a so-called float-ID tag
(14) which is advantageously added to each set of data involved
in a load or purchase process performed by the user of the
electronic purse system.
Patent EP-1107397-A3 (EP)
Inventor: MIERSCH ERIK
IPC: H01R43/00
Filed: 2000-10-24
Abstract: Eine Kabeltülle (1) weist mindestens einen Schutzschlauch (5) mit mindestens
einem Querkanal (6) auf. Dieser nimmt mindestens ein Kabelelement (3,4) zum
Schutz vor thermischen und/oder mechanischen Beanspruchungen auf. Durch
den Querkanal (6) ist in das Innere des Schutzschlauchs (5) Kunststoffmaterial
des Tüllenkörpers (2) bei dessen Herstellung von außen so eingedrungen, dass
im Bereich dieser Eindringstelle der Schutzschlauch (5) längswasserdicht ausgefüllt
ist.
Patent EP-1099790-A3 (EP)
Inventor: SIEBACHMEYER FRITZ
IPC: D06F33/47
Filed: 2000-11-04
Abstract: The control device has an electronic control stage (2) used in combination with an electromechanical programme switch mechanism (1) with a programme drum (3), a reversing drum (4) and an operating drive (5). The reversing drum has right-hand rotation, standstill and left-hand rotation contacts, with a control contact (S1) for a door locking mechanism (16) closed upon operation of the left-hand or right-hand rotation contact (9,10).
Patent EP-1106444-A3 (EP)
Title: Seitenaufprall-Schutzsystem für Fahrzeuge
Inventor: HERZOG FRANK
IPC: B60R21/16
Filed: 2000-11-23
Abstract: In einem Seitenaufprall-Schutzsystem für Fahrzeuge wird ein aufblasbares
langgestrecktes Schutzkissen (10) mittels Spannbändern zwischen festen Punkten
(A, C) im Fahrzeug verspannt. Eines (18) der Spannbänder ist an seinem dem
Schutzkissen zugewandten Ende in zwei Spannbandabschnitte (18a, 18b)
verzweigt, die in verschiedener Höhe am aufgeblasenen Schutzkissen (10)
angreifen.
Patent EP-1113704-A3 (EP)
Inventor: ISHIHARA YOSHIHISA
IPC: C08G64/06
Filed: 2000-12-19
Abstract: The present invention relates to a speaker unit
comprising a diaphragm comprising a 0.5 to 10mm thick
aromatic polycarbonate with a density of 0.03 to 0.6g/cm 3 ,
and a mechanism for driving the diaphragm. The elastic
modulus in tension of the aromatic polycarbonate resin
foam sheet or plate used to form the diaphragm for the
speaker unit of the present invention is preferably at
least 1 MPa at temperatures of 25°C, 50°C, 80°C, and 105°C,
the tanδ of the foam sheet or plate is preferably at
least 0.02 at a temperature ranging from 25 to 105°C
during measurement of the dynamic viscoelasticity in
bending tests giving 1 Hz frequency oscillation strain,
and the mean cell diameter of the foam sheet or plate is
preferably 0.05 to 1mm, with a foaming agent left over
content of no more than 0.3mol/kg in the foam forming
said diaphram. The aromatic polycarbonate resin forming
the diaphragm in the present invention preferably
comprises an aromatic polycarbonate resin derived from
bisphenol, preferably with a viscosity average molecular
weight of 25,000 to 70,000. The percentage of open cells
in the aromatic polycarbonate resin foam forming the
diaphragm in the present invention is preferably no more
than 50%.
Patent EP-1117023-A3 (EP)
Title: Vorrichtung zur Diagnose von beim Betrieb eines Kraftfahrzeugs auftretenden Fehlern
Inventor: SCHMEDDING RAINER
IPC: G05B23/02
Filed: 2000-12-28
Abstract: Es wird eine Vorrichtung zur Diagnose von beim Betrieb eines Kraftfahrzeugs auftretenden
Fehlern vorgeschlagen, die mindestens eine Schnittstelle zum Empfangen
von Zustandsdaten von unterschiedlichen Fahrzeugkomponenten, Auswertemitteln
(2) zum Erkennen von Fehlern anhand der Zustandsdaten und zum Abrufen
entsprechender Fehlermeldungen von einer Informationsbasis und eine
Ausgabeeinheit (3) zur Wiedergabe der Fehlermeldungen umfaßt. 
     Diese Vorrichtung soll dem Fahrzeugbenutzer umfangreichere Diagnosemöglichkeiten
On-Board zur Verfügung stellen und ihn in jedem Falle mit einfach verständlichen
Informationen zum Betriebszustand des Kraftfahrzeugs bzw. einzelner
Kraftfahrzeugkomponenten versorgen. 
     Dazu umfassen die Auswertemittel (2) ein Expertensystem, wobei das Expertensystem
jeder konkreten Konstellation von Zustandsdaten mindestens eine Fehlerart
mit der entsprechenden Fehlerwahrscheinlichkeit als Fehlermeldung zuordnet.
Außerdem ist das Expertensystem an die Elektronik des Kraftfahrzeugs angeschlossen,
so daß die Auswertung der Zustandsdaten im Kraftfahrzeug erfolgt.
Patent EP-1063281-A3 (EP)
Inventor: CRAWFORD CHARLES ALLEN
IPC: C11D1/24
Filed: 2000-06-08
Abstract: A rinse aid composition that does not inhibit starch
breakdown and a cleaning system using the same is
described. The rinse aid composition comprises a
surfactant which when contacted with a gelled azure starch
that is subsequently retrograded and suspended in a
detergent wash having a compound capable of causing starch
degradation, does not prevent at least about 75%
degradation of the suspended azure starch present in the
detergent wash or the rinse aid composition does not result
in a washed ceramic tile coated with a potato starch from
displaying a %ΔR of greater than about 24, or both.
Patent EP-1050942-A3 (EP)
Inventor: DONG WESLEY B
IPC: H02G1/14
Filed: 1996-08-27
Abstract: An apparatus (1) for sealing the end of an elongate cable (73) such as a heating cable comprises (1) a housing (3) with a first open end (5) and a second open end (7) and a strain relief element (27) positioned within the housing, (2) a flexible container (43) which can be positioned over the cable end (75) and (i) is of generally tubular shape, (ii) has an interior surface (53) and an exterior surface (55), (iii) has a first open end (47) and a second closed end (49), and (iv) contains a sealant (77); and (3) a cap (61) which can be mated with the housing at the second open end, and cover the flexible container. The apparatus has excellent moisture-resistant properties even after repeated exposure to high temperatures, is reenterable, and can be readily mounted on a substrate such as a pipe. Also disclosed is an apparatus (80) for sealing a core (103) of an elongate heating cable (101). The apparatus comprises a flexible container (81) in which a first portion (83) is attached to a second portion (89) which comprises first and second leg portions (91,93) suitable for insertion of first and second elongate electrodes (105,107) of the heating cable. <IMAGE>
Patent EP-1076255-A3 (EP)
Inventor: CHEESMAN EDWARD
IPC: G02B27/01
Filed: 2000-04-17
Abstract: A combiner assembly 20 has an optical combiner 21 mounted to a housing 22 which is
further arranged for mounting to a roof structure of a flight deck of an aircraft. The
combiner 21 is mounted within a frame 23 which is mounted to the housing 22. The frame
23 has first pivot point 24 which is attached to a first arm 25 which is also attached to the
housing 22 at a second pivot point 26 located at a position remote from the first pivot point
24. First arm 25 is arranged to allow the combiner 21 to rotate around the housing 22
between a deployed position and a stowed position. A second arm 27 is pivotally connected
to the frame 22 at a third pivot point 28, at a position spaced from the first pivot point 24,
and to the housing 22 at a fourth pivot point 29, located at a position remote from the third
pivot point 28 and at a position spaced from the second pivot point 26. The pivot points 24,
26, 28 and 29 are arranged such that the first and second arm 25, 27 are positioned in a non-parallel
arrangement and traverse a pathway wherein the mean distance between the
combiner 21 and housing 22 varies during rotational movement of the combiner 21 with
respect to the housing 22.
Patent EP-1085472-A3 (EP)
Inventor: KANETAKA KATSUYUKI
IPC: A63F13/52
Filed: 2000-09-14
Abstract: An image representing a motion of an object is obtained with a
small processing volume. As shown in Figs. 5A through 5G, positions in
a three-dimensional space associated with sparks of a firework ball are
sequentially calculated in accordance with motion characteristics of the
sparks. Positions on a camera screen are obtained by projecting the
calculated positions of the sparks at the current point in time in Fig. 5C,
and a spark texture D is drawn in those positions. An image G
representing a locus of each of the sparks is obtained by drawing a line
segment connecting points that form a history of the points on the camera
screen which are projections of points associated with each of the spark
(points on a same radial line in Fig. 5F).
Patent EP-1102079-A3 (EP)
Inventor: PETROPOULOS LABROS S
IPC: G01R33/385
Filed: 2000-11-07
Abstract: A uniplanar gradient coil assembly  (40)  generates substantially linear gradient magnetic
fields through an examination region  (14) . The gradient coil assembly  (40)  includes at least
a pair of primary uniplanar gradient coil sets  (40a, 40b)  and a pair of shield coil sets  (41a,
41b)  which are disposed in an overlapping relationship. One gradient coil set is displaced
relative to the other gradient coil set such that the mutual inductance between the two is
minimized. Preferably, the coil sets  (40a, 40b, 41a, 41b)  are symmetric, such that the sweet
spot of each coil is coincident with the geometric centre of each coil. One primary
uniplanar gradient coil set  (40a)  is a high efficiency, high switching speed coil to enhance
performance of ultrafast magnetic resonance sequences, while the second primary uniplanar
gradient coil set  (40b)  is a low efficiency coil which generates a high quality gradient
magnetic field, but with slower switching speeds. By displacing one gradient coil set
relative to the other, mutual inductance is minimized, which maximizes peak gradient, rise
time, and slew rate, while dB/dt levels are minimized. In one embodiment, the uniplanar
gradient coil assembly  (40)  is housed within an interior of a couch  (30) .
Patent EP-1107275-A3 (EP)
Inventor: SUMIDA TATSUYA
IPC: H01H85/175
Filed: 2000-11-30
Abstract: An electrically conductive metal plate (2) is stamped out, so as to yield
a fuse unit (1) including an input terminal (3) and several output terminals (4).
The fuse unit further comprises a predetermined locus where fuse element
portions (5) are to be formed later. A surface area of fuse unit (1) including
this predetermined locus is then molded with an insulator material (7).
Thereafter, the fuse element portions (5) are formed in this predetermined
locus by e.g. stamping. In this manner, the fuse unit (1) can be manufactured
easily at low costs, irrespective of the number and electric capacity of the fuse
element portions (5).
Patent EP-1142516-A3 (EP)
Title: Flexibles Regalsystem für Kommissioniergeräte oder manuelle Benutzung
Inventor: STIRNBERG STEFAN
IPC: A47F1/12
Filed: 2001-02-25
Abstract: Nach der Erfindung werden Regale aus Wänden (1,201)
und Regalböden (3,203) zusammengesetzt, wobei
die Wände oben und unten in Halterungen
zwischen Erhebungen und/oder Vertiefungen
sitzen und wobei die Regalteile (4,204)
zumindest teilweise dadurch hergestellt werden, daß sie als
Blech von einem langen Ausgangsprodukt abgelängt werden.
Patent EP-1166748-A3 (EP)
Title: Mittel und Verfahren zur Färbung keratinischer Fasern
Inventor: BRAUN PETRA
IPC: A61Q5/10
Filed: 2001-03-15
Abstract: Gegenstand der vorliegenden Erfindung ist ein Mittel zum Färben von
Keratinfasern, welches vor der Anwendung nicht mit einem Oxidationsmittel
vermischt wird und dadurch gekennzeichnet ist, dass es frei von
Magansalzen ist und in einem geeigneten kosmetischen Träger eine in
Gegenwart von Luftsauerstoff zur Färbung von Keratinfasern geeignete
Kombination aus
   (a) mindestens einem 4,5-Diaminopyrazol-Derivat der allgemeinen Formel
(I) oder dessen physiologisch verträglichen Salzen,
 
und   (b1) mindestens ein 5-Amino-2-methylphenolderivat gemäß der allgemeinen
Formel (II) oder dessen physiologisch verträglichen Salzen,
 
und/oder   (b2) mindestens ein m-Phenylendiaminderivat gemäß der allgemeinen
Formel (III) oder dessen physiologisch verträglichen Salzen,
 
enthält; sowie ein Verfahren zum Färben von Keratinfasern unter Verwendung
dieses Mittels.
Patent EP-1155855-A3 (EP)
Title: Druckprozesssteuerung
Inventor: EISELE PETER
IPC: B41F33/16
Filed: 2001-05-04
Abstract: Ein Verfahren zum Drucken weist eine Mehrzahl von Prozessschritten auf. Diese
Prozessschritte werden durch das Ablegen relevanter Daten in einer zentralen relationalen
Datenbank ergänzt, wobei sowohl die Druckmaschine wie auch eine die aus der Vorstufe
verarbeitete Datenverarbeitungseinheit verknüpft sind.
Patent EP-1156377-A3 (EP)
Inventor: ECK EDWARD M
IPC: G03G15/08
Filed: 2001-05-15
Abstract: The invention relates generally to processes for electrostatic image development, and
setpoints that provide uniform image development. In particular, an apparatus and
process having a magnetic brush that implements hard carriers and a rotating
magnetic core within a shell is disclosed. The process implements one or more of the
following optimum setpoints: a range of shell surface speeds that provide uniform
toning density, a range of shell surface speeds that prevent toner plate-out, a skive
spacing that minimizes sensitivity to variation, a magnetic core speed that minimizes
sensitivity to variation, and an imaging member spacing that minimizes sensitivity to
variation.
Patent EP-1179847-A3 (EP)
Inventor: KAHLISCH KNUT
IPC: H01L23/495
Filed: 2001-06-15
Abstract: Trägermatrizen für Halbleiter werden häufig mit
Abstandshaltern am Halbleiterchip angeordnet. Die
Abstandshalter bestehen aus Silikon, welches in den Bereich
der Bondleads fliessen und die sichere elektrische Verbindung
der Bondleads mit dem Halbleiterchip verhindert. Zur
Verhinderung dieses Flusses ist die Erfindung gerichtet auf
eine Trägermatrix für integrierte Halbleiter mit einem
Rahmen, Leiterbahnstrukturen und zumindest einem Bondlead (1)
zur Verbindung der Leiterbahnstrukturen mit dem integrierten
Halbleiter, und ist dadurch gekennzeichnet, dass das
zumindest eine Bondlead (1) zwischen einem Bondbereich (3)
und den Leiterbahnstrukturen (6) zumindest eine Barriere (7,
8) zur Verhinderung des Fliessens von flussfähigem Material
auf den Bondbereich aufweist. Die Erfindung ist ebenfalls auf
ein Verfahren zur Herstellung solcher Trägermatrizen
gerichtet.
Patent EP-1178003-A3 (EP)
Title: Coilzange zur Aufnahme eines Stahl-Coils
Inventor: PETERS KLAUS-WILHELM
IPC: B21C47/24
Filed: 2001-06-16
Abstract: Die Erfindung bezieht sich auf eine Coilzange zur Aufnahme eines
Stahl-Coils, mit zwei zumindest im wesentlichen vertikal verlaufenden
Zangenschenkeln (1, 2), deren relativer Abstand in einer
Vorwärtsrichtung (X) zueinander verstellbar ist, wobei an jedem
Zangenschenkel (1, 2) vorgesehen ist ein nach innen ragender
Haken (3) zum Eingriff in ein Auge des Coils, eine zumindest im
wesentlichen vertikal verlaufende Kantenschutzaufnahme (8) zur
kraftschlüssigen Anlage an axiale Seitenflächen des Coils. Um
einen sicheren Transport eines Coils mit möglichst geringer Beschädigung
der Coilkanten zu ermöglichen, wird vorgeschlagen,
daß mindestens eine Kantenschutzaufnahme (8) gegenüber dem Zangenschenkel
(1, 2) um eine waagerechte, in seitlicher Richtung
(Y) verlaufende Achse verkippbar ist.
Patent EP-1174487-A3 (EP)
Inventor: WATANABE HIROSHI
IPC: C10M105/38
Filed: 1994-10-13
Abstract: A biodegradable multipurpose functional fluid for
agricultural or construction machinery, comprising a
base oil, a detergent-dispersant and an antioxidant
(and a viscosity index improver if desired), in which
the base oil is a fatty acid triester of
trimethylolpropane obtained from a fatty acid derived
from a coconut oil which has been adjusted to have a
stearic acid content of from 10% to 20% by weight.
Patent EP-1209111-A3 (EP)
Title: Blattablagevorrichtung
Inventor: DOBRINDT DIRK
IPC: B65H33/08
Filed: 2001-08-03
Abstract: Die Erfindung betrifft eine Blattablagevorrichtung (1) für biegsames flächiges Gut (2),
insbesondere Papier, mit mindestens einem Umlenkrad (3), das mindestens einen im
wesentlichen tangential angeordneten Aufnahmeschlitz (4) aufweist, einer Blattzufuhr
(5), die in den mindestens einen Aufnahmeschlitz (4) mündet, wenn sich dieser in einer
Aufnahmeposition (6) befindet und einem Blattablageanschlag (7) in einem der Aufnahmeposition
(6) gegenüberliegenden Bereich des Umlenkrades (3), wobei dieses in
einer Aussparung (8) des Blattablageanschlags (7) läuft und letzterer in einer Blattablageposition
(17) mindestens an einer Seite eines Aufnahmeschlitzes (4) liegt. 
     Eine derartige Blattablagevorrichtung soll derart weitergebildet werden, daß auf einfache
Weise ein Versatz im ausgelegten Stapel (20) erzielt wird. Dies wird dadurch
erreicht, daß auf einer Welle (9) mindestens zwei Umlenkräder (3) angeordnet sind, die
positionsgleiche Aufnahmeschlitze (4) aufweisen und daß die Welle (9) gegenüber der
Transportrichtung (10) der Blattzufuhr (5) schrägstellbar ist.
Patent EP-1191727-A3 (EP)
Title: Modular erweiterbares optisches ADD-DROP-modul
Inventor: DOEBLER CHRISTIAN
IPC: H04J14/02
Filed: 2001-08-16
Abstract: In einem ersten ADD-DROP-Modul (M1) wird ein WDM-Signal (C N ) einer ersten Filteranordnung (2, 7) zugeführt, die zwei Kanäle (Ca, Cb) selektiert und die restlichen Kanäle (C N-a,b ) einer Kaskadier-Schalteinrichtung (19, 20) zuführt. Die von der Filtereinrichtung (2, 7) abgezweigten Kanäle (Ca, Cb) können von einer ADD-Drop-Schalteinrichtung (3, 4; 8, 9) abgezweigt oder durchgeschaltet werden. Die durchgeschalteten oder neu eingefügten ADD-Kanäle (CAa, Cab) werden mit den übrigen Kanälen in einer ADD-Filteranordnung (10, 5) zu einem neu konfigurierten WDM-Ausgangssignal (CO N ) zusammengefaßt. Über die Kaskadier-Anschlüsse (22, 23) kann wiederum ein weiteres ADD-DROP-Modul (M2) angeschlossen werden, das das Abzweigen zweier weiterer Kanäle (Cc, Cd) gestattet.
Patent EP-1193519-A3 (EP)
Inventor: SASAKI TADASHI
IPC: G02B7/09
Filed: 2001-09-26
Abstract: The lens apparatus (1) permits rapid focusing by the operator demanding an
autofocus (AF) start-up direction to carry out AF in the direction in an AF mode. When a
start of the AF mode is instructed, an AF standby state of waiting for the operator to demand
the AF start-up direction by operating a focus operation member (FR), thereby permitting the
operator to properly demand the AF start-up direction, and permitting the demand to be
appropriately detected. When automatically switching from the state where the operator
operates the focus operation member (FR) to the AF, condition of the switching is that a focus
evaluation value exceeds a predetermined threshold based on the operation of the focus
operation member (FR), or that an operation amount of the focus operation member (FR) is
changed more then a predetermined amount, thereby permitting further rapid focusing and
improvement of operability. Gradually switching a clutch (MCL, ECL), which switches the
focus lens driving from manual to electrical operation, from a manual to electrical state in
switching to the AF can eliminates uncomfortable operation feeling of the focus operation
member (FR). Further, for the processing after completion of focusing by the AF, a mode of
returning to the AF standby state of waiting for the operator to demand the AF start-up
direction, mode of returning to a manual mode, or mode of continuing the AF can be selected,
which permits improvement of convenience of the AF mode.
Patent EP-1249594-A3 (EP)
Inventor: DOVIDS CHRISTIAN
IPC: F02F7/00
Filed: 2001-10-27
Abstract: The fitting device fits two casing parts of an internal combustion engine, enclosing a cavity, to each other. The covering casing part (3) is secured in position relative to the other casing part (4) by support elements (7) fitted to at least one of the casing parts against bulging and deforming motions connected with tightening the screws, transversely to the elastic seal (5).
Patent EP-1231088-A3 (EP)
Inventor: KLEIN HENRI
IPC: B60H1/00
Filed: 2001-11-07
Abstract: Each bypass channel (BVL,BVR) for each air-conditioning channel and each shut-off flap unit is adjusted by means of an operating device and has a shut-off flap (9a,9b) for each bypass channel. Each shut-off flap unit is designed in such a way that it shuts off both bypass channels in a first flap position and in a second flap position it releases the first bypass channel only partially and shuts off the second bypass channel. In a third flap position, the flap it shuts off the first bypass channel and partially releases the second bypass channel.
Patent EP-1160558-A3 (EP)
Inventor: BELGERS JOHANNES ANTONIUS WOUT
IPC: G01M3/12
Filed: 2001-05-29
Abstract: In a method for investigating whether a seal 11 leaks in a joint which is
gastight at the bottom 9, for example, a joint 3 closed at the bottom in a floor slab 14, gas
is blown between the seal 11 and the bottom 9 of the joint 3 by means of a device 13 stuck
through the seal 11. The upper surface of the seal 11 is soaped and by observing the
formation of soap bubbles it can be determined whether the seal 11 displays any leaks and
where they are situated. 
     The device 13 has a hollow rod which is provided with a coupling piece 19
for connecting to a gas hose at one end, and at the other end the rod is closed and has a
sharp point. Near the closed end are a number of openings 17 in the side wall of the hollow
rod for the flow of the gas.