baber/WOPTO huggingface dataset:
Patent EP-0230877-A3 (EP)
IPC: B23Q16/10
Filed: 1987-01-08
Abstract: Bei einer winkelschaltbaren Baueinheit (1) für Werkzeug­
maschinen mit einem stationären Teil (11) und einem ver­
drehbaren Teil (21) zur Halterung von Werkstücken oder 
Werkzeugen (3), einem Antriebsmotor (31) mit nachgesch­
altetem Getriebe (34) sowie einem Kupplungsglied (41), das 
drehfest und axial verschiebbar mit dem Stator (33) verbun­
den und zur Indexierung des verdrehbaren Teils (21) auf bei­
den Sirnseiten mit Stirnverzahnungen (44, 45) versehen und 
mittels dem zur Verriegelung der Baueinheit (1) das statio­
näre Teil (11) mit dem verdrehbaren Teil (21) formschlüssig 
verbindbar ist, ist um das Kupplungsglied (41) ein mit den 
einzelnen Schaltstellungen der Baueinheit (1) zugeordneten 
Ausnehmungen (52) versehenes Steuerglied (51) drehbar 
gelagert, das in beiden Drehrichtungen mit dem ver­
drehbaren Teil (21) gekoppelt ist. Des weiteren ist ein durch 
eines der Getriebeteile (40) steuerbarer Schalthebel (60) vor­
gesehen, der mit einem doppelseitigen umsteuerbaren Klink­
engesperre (61) zusammenwirkt, mittels dem das Steuerglied 
(51) zur Änderung einer Schaltstellung wechselweise in einer 
Drehrichtung mit dem Kupplungsglied (41) verbindbar ist.  
     Auf diese Weise ist es möglich, das verdrehbare Teil (21) 
mittels des Antriebsmotors (31) in zwei Drehrichtungen ohne 
zusätzliche Schaltmittel zu verstellen, so daß eine einzuneh­
mende Arbeitsstellung auf dem kürzesten Verdrehweg an­
fahrbar ist und die Schalt zeiten kurz sind.
Patent EP-0230237-A3 (EP)
Title: Cabinet, especially adapted to bathrooms
IPC: A47B67/00
Filed: 1987-01-09
Abstract: A cupboard, more particularly for bathrooms and for the accommodation of bath utensils and the like, contains a housing with at least one pivotably arranged door for closing off or exposing an opening. Compact design, reliable operation and simple construction are to be achieved. To this end it is proposed that a second door be mounted to rotate about a second axis of rotation which is at a distance from the first axis of rotation. Each of the two doors which are pivotable in relation to each other, comprises, at the lower and the upper end, a bearing element which is mounted to rotate in the housing bottom and the housing top by means of pins.
Patent EP-0241003-A3 (EP)
Title: 4h-1-benzopyran-4-one derivatives, process for their preparation and their use as medicaments
IPC: A61K31/44
Filed: 1987-04-08
Abstract: The novel 4H-1-benzopyran-4-one derivatives are used as antiinflammatories, analgesics, immunosuppressants and antiallergics. The present invention relates in particular to novel compounds of the formula I 
<IMAGE>
 in which R1 represents hydrogen, alkyl having 1 to 6 carbon atoms, aryl-C1-C4-alkyl, substituted C1-C6-alkyl, C3-C6-cycloalkyl, C3-C6- cycloalkyl-C1-C4-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, aryl, carboxyl or an aldehyde or COO-C1-C4-alkyl group, R2 represents hydrogen, alkyl having 1 to 6 carbon atoms, nitro, amino, aryl, carboxyl, di-C1-C4- alkylamino, or a halogen, R3 represents C1-C4-alkyl, substituted C1-C4- alkyl, hydroxyl, C1-C4-alkoxy, aryl-C1-C4-alkyl, nitro, amino, a C1-C4- alkyl- or di-C1-C4-alkylamino group or halogen, R4 represents hydrogen, hydroxyl, C1-C4-alkoxy, C1-C4-alkanoyloxy, C1-C4-alkoxycarbonyl, aryloxy, amino or a C1-C4-alkyl- or di-C1-C4-alkylamino group, n represents the integer 0, 1 or 2 and R5 represents hydrogen, C1-C6- alkyl, substituted C1-C6-alkyl, aryl-C1-C4-alkyl, C3-C6-cycloalkyl, C3- C6-cycloalkyl-C1-C4-alkyl, C1-C4-alkanoyl or aroyl, where the aryl group is optionally monosubstituted or polysubstituted phenyl, m denotes an integer between 0 and 3 and n denotes an integer between 0 and 2, and their pharmacologically acceptable acid addition salts.
Patent EP-0263980-A3 (EP)
Title: Apparatus and method for fusion joining plastic pipe
IPC: B29C65/14
Filed: 1987-09-11
Abstract: Apparatus and method are disclosed for fusion 
joining first and second axially abutted thermo-plastic 
piping system component connection ends that are in axial 
and circumferential alignment. The joining apparatus 
includes apparatus for enabling the heating of a melt 
region in the proximity of the interface of the first and 
second piping system component connection ends at least to 
the material softening point of the thermo-plastic 
material of the melt region, and further includes vacuum­
metric apparatus for vacuummetrically inducing outward 
translation of the melted material of the melt region. 
The method includes the steps of (a) heating a melt region 
in the proximity of the interface of the first and second 
piping system component connection ends at least to the 
material softening point of the thermo-plastic material of 
the melt region, and (b) vacuummetrically inducing outward 
translation of the melted material of the melt region.
Patent EP-0261564-A3 (EP)
IPC: G05D23/24
Filed: 1987-09-16
Abstract: Es wird ein Flächenheizelement mit einer Träger­
platte (10) beschrieben, die Rillen (12, 18, 20) 
aufweist, in die ein Heizelement (24) eingelegt 
ist. Die Trägerplatte (10) weist nebeneinander 
parallele erste Rillen (12) und mindestens zwei 
zweite Rillen (18) auf, die die ersten Rillen 
(12) kreuzen. Benachbarte erste Rillen (12) bil­
den mit der einen und der anderen zweiten Rille 
(18) abwechselnd einen abgerundeten Umlenkab­
schnitt für das mäanderförmige Heizelement (24). 
Die Einrichtung zum Regeln der Temperatur des 
Flächenheizelementes weist eine Raumtemperatur­
regeleinrichtung (122), eine Betreibstemperatur­
einstelleinrichtung (124) und eine Schalteinrich­
tung (198) zur Unterbrechung bzw. Einschaltung 
des Stromflusses zwischen einer Stromquelle und 
dem Heizelement auf. DieRaumtemperaturregelein­
richtung (122) weist einen Spannungsteiler aus 
 
 
einem temperaturabhängigen Widerstand (R3) und 
einem veränderbaren Widerstand (R) auf. Die Be­
triebstemperatureinstelleinrichtung (124) weist 
einen Stufenschalter (120) auf, an dessen Schalt­
stufen unterschiedliche elektrische Widerstände 
(R261, R262, R263, R264) angeschlossen sind. Die 
zweiten Anschlusselemente dieser unterschiedlichen 
Widerstände sind mit einem zweiten temperaturab­
hängigen Widerstand (R13) zu einem Spannungsteiler 
in Reihe geschaltet. Eine Schaltstufe (146) weist 
ein Schaltrelais (198) auf, dessen Schaltkontakte 
(206) sich im Stromkreis des elektrischen Heiz­
elementes befinden.
Patent EP-0269085-A3 (EP)
IPC: H05K3/06
Filed: 1987-11-25
Abstract: The apparatus comprises two major assemblies: a 
heater block assembly (28) and a vacuum 
table assembly (30). The heater block assembly 
employs a temperature controlled, insulated heater block (32) having a 
surrounding, movable vacuum collar (36). 
A flexible, thermally conductive vacuum 
skin (38) is mounted on the movable vacuum collar (36) 
and forms a vacuum chamber in 
cooperation with a movable vacuum table (42) 
having a flat, porous plate (44) whose 
upper surface is parallel to the vaccum 
table surface. A sandwich comprising 
a porous release sheet (64), the printed circuit 
board (66), a thermodeformable 
material (70) and a thermally conductive cover sheet (72) 
is positioned on the vacuum 
table flat, porous plate (44). Thereafter, the 
vacuum table (42) and sandwich are 
moved together so that the table forms a 
sealing relation with the flexible, 
thermally conductive vacuum skin (38). 
A vacuum is then drawn in the now formed 
vacuum chamber (74) forcing the flexible, 
thermally conductive vacuum skin (38) against 
the sandwich to compress the porous release sheet (64) 
between the printed circuit 
board (66) and the flat, porous plate (44). 
At this point, the flexible, thermally 
conductive vacuum skin (38), sandwich and vacuum table (42) 
are moved into a position 
in which the flexible, thermally conductive 
vacuum skin (38) is forced into 
thermally conductive contact with the heater 
block (32). Heat from the heater 
block softens the thermodeformable material (70) 
so that it deforms into the holes (68) 
of the printed circuit board (66) 
forming protectively sealing plugs (76) therein. 
After cooling, the vacuum table (42) 
is moved in the reverse direction to permit 
removal of the sandwich.
Patent EP-0254348-A3 (EP)
Title: Process of (co)polymerization of alpha-olefins in the presence of antioxidants
IPC: C08F10/00
Filed: 1987-07-08
Abstract: Stabilizers for organic polymers, consisting of one or more phosphorus-containing compounds of the family of alkyl- and/or phenyl-phosphites, alkyl- and/or phenyl-phosphonites, alkyl- and/or phenyl-diphosphonites, are directly added to the reaction mixture during the (co)polymerization of  alpha -olefins or of mixtures thereof with other unsaturated monomers. The so-obtained polymeric compositions result perfectly stabilized, and show a thermo-oxidative resistance higher than that of the same polymeric compositions to which the same antioxidants have been added by a traditional route.
Patent EP-0235915-A3 (EP)
IPC: F16L19/00
Filed: 1987-01-27
Abstract: A security device (10) for preventing or indicating the 
tampering with a joint (22) in a supply pipe, e.g. to a gas meter, 
comprises two or more members (11, 12) which fit together 
around the joint (22). The members (11, 12) have mutually 
interdigitating parts (13) through which a blind bore (17) is 
provided and which houses a glass phial (24) containing a dye. 
Displacement of the members (11, 12) from the assembled 
configuration breaks the phial (24), thereby releasing the dye 
which stains the members (11, 12) so that the tampering is readily 
detectable.
Patent EP-0249346-A3 (EP)
IPC: A61F2/08
Filed: 1987-05-15
Abstract: A prosthetic ligamentary device 1 consists of a hollow 
longitudinal first element 2 of a relatively inelastic material, 
for example a cross-woven cord of polyester, and containing 
a hollow second element 3 of relatively elastic material, for 
example a co-axial silicone rubber tube. When the first el­
ement 2 is subjected longitudinally to an anatomical tensile 
force it extends to a limited degree by transversely com­
pressing the second element 3, whereupon the device 1 be­
comes inextensible by the force.
Patent EP-0231161-A3 (EP)
IPC: F41G3/04
Filed: 1987-01-28
Abstract: The disclosure relates to an apparatus for reducing the 
spread of a hit pattern for an ammunition unit (2) in the form 
of a shell, projectile or the like, discharged in a ballistic trajec­
tory from a launching device (1) towards a target (3) which is 
to be combated. The apparatus includes means (2′) which are 
activated in response to the difference between the true posi­
tion of the target and the point of impact of the shell for re­
tardation thereof with the intention of increasing hit at least 
one of the trajectory parameters of the shell, preferably the 
muzzle velocity of the shell, an integral sensor (13, 14) for 
measuring corresponding trajectory parameters and a calcu­
lator unit (16) for calculating the point of impact on the basis 
of the thus measured value.
Patent EP-0301175-A3 (EP)
IPC: H01Q1/10
Filed: 1988-04-20
Abstract: Beschrieben ist eine ausziehbare Antenne für ein 
tragbares Rundfunkgerät, wobei die Antenne (2) im 
wesentlichen aus einem Teleskopstab mit einem am Ende 
angebrachten Kopfteil (3) besteht. Das Kopfteil dieser 
Antenne ist hierbei als Klemmteil derart ausgebildet, daß 
ein Drahtende (10) einer zusätzlich verwendeten sogenannten 
Wurfantenne in einfachster Weise an die bereits im Gerät 
eingebaute und ausziehbare Antenne elektrisch einwandfrei 
kontaktierend anzuschließen bzw. von dieser zu lösen ist.
Patent EP-0298385-A3 (EP)
Title: Zytostatisch wirksame Anthracyclin-Derivate
IPC: C07H15/252
Filed: 1988-07-01
Abstract: Die Erfindung betrifft neue zytostatisch wirksame Anthra­
cyclinderivate und -konjugate der nachfolgenden allge­
meinen Formel I, 
  
welche gegebenenfalls als Salz einer anorganischen oder 
organischen Säure vorliegen, in der die Reste folgende 
Bedeutung haben: 
 
 
A ist ein Anthracyclinon der allgemeinen Formel II oder 
III, 
  
M ist eine Struktur der allgemeinen Formel IV oder V, 
  
 
 
und a und b sind gleichartige oder verschiedenartige sub­
stituierte oder unsubstituierte Alkylreste aliphatischer 
oder benzylaromatischer Natur oder a und b bilden, zu­
sammen mit dem N-Atom, einen gegebenenfalls substituierten 
heterozyklischen Ring,  
wobei in den Formeln II und III  
R¹      Wasserstoff oder eine Hydroxygruppe,  
R²      Wasserstoff oder eine Hydroxy- oder eine Methoxygruppe,  
R³      Wasserstoff oder eine Hydroxygruppe,  
R⁴      Wasserstoff oder eine Hydroxygruppe,  
R⁵      CH₂CH₃, COCH₃ oder eine Strukrur der Formel COCH₂OCOR, 
wobei R zusammen mit der Carbonylgruppe die Acylfunk­
tion einer einbasigen oder einer α,ω-zweibasigen ali­
phatischen Carbonsäure oder einer Aminosäure darstellt,  
X      Wasserstoff, eine Hydroxy- oder eine Methoxycarbonyl­
gruppe oder ein Rest der Formel VI 
  
und Y      ein Rest der Formel VI ist,  
wobei in den Formeln IV und V der Rest Z Wasserstoff oder 
eine Methyl-, Hydroxy-, Methoxy-, Acetoxy-, Nitro- oder 
 
 
Cyanogruppe oder ein Chlor- oder Bromatom sein kann und 
wobei in Formel V der Rest P ein Protein- oder Peptid-­
Rest, ein Immunglobulin oder Immunglobulin-Rest, ein 
monoklonaler Antikörper oder ein Fab-, Fab′- oder 
F(ab′)₂-Fragment oder ein Hormon-, Lectin- oder Wachs­
tumsfaktorrest sein kann, wobei P gegebenenfalls weitere 
Anthracyclinderivate der beanspruchten gekoppelten Art 
tragen kann, sowie Verfahren zu ihrer Herstellung und ihre 
Verwendung in Arzneimitteln.
Patent EP-0322860-A3 (EP)
Title: Insulated gate semiconductor device
IPC: H01L27/02
Filed: 1988-12-27
Abstract: An insulated gate semiconductor device have a gate protec­
tion circuit wherein the breakdown voltage can be arbitrarily 
selected. In one embodiment, the gate protection circuit in­
cludes first polysilicon layer of a first resistance overlaying 
the gate insulation layer formed on the semiconductor substrate 
and laterally spaced from the gate layer, and second polysilicon 
layer of a second resistance higher than the first resistance 
contacting the first polysilicon layer to form at least one 
pair of diodes for protecting the gate insulation layer from electro­
static destruction caused by a sudden voltage surge applied to 
the gate layer. In a second embodiment, the gate protection 
circuit includes a pair of Schottky barrier diodes consisting 
of a gate layer and a separation layer overlaying the gate 
insulation layer together with a layer contacting the gate 
layer and separation layer.
Patent EP-0293032-A3 (EP)
IPC: C01B35/10
Filed: 1988-05-11
Abstract: A synthetic, crystalline, porous material containing oxides of silicon and boron is disclosed, which, in the non-calcined state, has the following empyrical formula:      mM2/nO,pR,xM<I>2O3,(1-x)B2O3,yM<II>O2,qH2O and, in the calcined and anhydrous state, has the following empyrical formula:      mM2/nO,xM<I>2O3,(1-x)B2O3,yM<II>O2,  wherein :  M      is an H<+>, NH @ or a metal cation with valence n, M<I>      is a trivalent metal selected from Al, Cr, Fe, Ga, V or Mn, M<II>      is either Si or mixtures thereof with such tetravalent metals as Ge, Ti or Zr,  R      is piperidine or hexamethyleneimine,  m      has a value comprised within the range of from 0.1 to 1.5,  x      has a value comprised within the range of from 0 to 0.9, y      has a value greater than 2 and preferably comprised within the range of from 5 to 300,  p      has a value greater than zero and smaller than 3, and  q has a value greater than zero and smaller than 5, and having a volume of the pores larger than 0.3 cm<3>/g.
Patent EP-0282176-A3 (EP)
Title: Vehicle repair and alignment rack
IPC: B21D1/12
Filed: 1988-02-16
Abstract: A vehicle repair and alignment rack (1) for correcting and aligning misshapened vehicle frame and body portions comprises a rack structure (2) having a vehicle supportive upper surface (20) and a lower surface (21) with opposite side rack portions having inner and outer flanges joined together to form a central opening (11), whereby a vehicle straddles the opening for work access to the vehicle underside. Front and rear supportive legs (13,14) are affixed to the rack structure for elevation above a floor surface (16) and have power fluid rams (52) operatively connected thereto for folding the legs and lowering the rack structure to the floor to facilitate positioning a vehicle on the rack. Force supplying members (18) are affixed to the rack structure and are easily movable therearound so that they can be selectively positioned to exert pulls on substantially any part of the vehicle. A front end of the rack structure is removable and replaceable so that the repairman has easy access to the lower front side of the vehicle, a common location for vehicle damage.
Patent EP-0310390-A3 (EP)
Title: A latching switch
IPC: H03K3/356
Filed: 1988-09-29
Abstract: The switch includes three pairs of CMOS-FET 
transistors (11,12; 21,22; 31,32) having their channels 
serially connected between two switch terminals (14,18). 
The second pair (21,22) of CMOS-FETs controls the 
first pair (11,12) in either a latched-on or latched-off 
state. The control of the said second pair of CMOS-FETs, 
in turn, is by the third pair (31,32) of CMOS-FETS. The 
gate electrode of the first transistor (32) of the third 
CMOS-FET pair serves as a turn-on terminal (37) for 
changing the conduction states in the second pair (21,22) 
so as to latch the first pair (11,12) into a state of 
current conduction between the two switch terminals 
(14,18). The gate electrode of the second transistor 
(31) of the third pair serves as a turn-off terminal (34) 
for changing the conduction states of the second pair 
(21,22) so as to latch-off conduction between the two 
switch terminals.
Patent EP-0318143-A3 (EP)
Title: Anti-coleopteran toxin and gene
IPC: C12P21/02
Filed: 1988-10-10
Abstract: The present invention relates to a novel biocontrol 
protein which is a crystal toxin and an insecticide and 
which is produced in a strain of bacteria genetically 
altered upon incorporation of a specific gene inserted as 
a stable gene construction. In particular, the present 
invention relates to the insertion of the δ-endotoxin gene 
from  B .  thuringiensis  var.  tenebrionis  into a cloning 
vector containing prokaryotic regulatory and replication 
systems and the utilization of this vector to transform 
bacterial strains into coleopteran pathogens. Limited 
deletion of the coding region of the gene of this invention 
still allows preservation of the insecticidal activity in 
the protein expressed. In addition, this invention 
provides genetically altered bacterial strains that are 
insect toxic and that can be used as a novel method of 
biological control of agricultural insect pests.
Patent EP-0343495-A3 (EP)
Title: Preparation of alkyl silanes
IPC: C07F7/08
Filed: 1989-05-17
Abstract: Olefins and metal aluminum tetralkyls react with 
alkylhalosilanes to yield mixtures of tetralkyl silanes 
which may be employed as functional fluids. For example, 
decene-1 and sodium aluminum tetraoctyl, NaAl(C₈H₁₇)₄, 
react with trichlorosilane. The mole ratio of sodium 
aluminum tetralkyl to halosilane is from 0.75:1.0, to 1:1, 
and the ratio of olefin to the metal aluminate is selected 
to confer in the product mixture, the desired concentra­
tion of alkyl radicals derived from the olefin.
Patent EP-0352430-A3 (EP)
IPC: F21S4/28
Filed: 1989-05-24
Abstract: Beschrieben wird eine Lichtleiste, die eine rinnenförmige Profil­
schiene beliebiger Länge aufweist. Im Inneren der rinnenförmigen 
Profilschiene sind in Längsrichtung beabstandet zueinander Lampen­
halter für einzelne Lampen angeordnet. Die Vorderseite der Profil­
schiene ist durch eine lichtdurchlässige Abdeckschiene verschlos­
sen. Die Lichtleiste ist an einer horizontalen, vertikal oder 
geneigten Wandfläche oder in einer Ecke auf oder unter Putz mon­
tierbar. Außerdem läßt sie sich mit einer weiteren Lichtleiste 
zu einer Eckleiste oder mit mehreren Lichtleisten zu einer mehr­
eckigen Säule zusammensetzen.
Patent EP-0365819-A3 (EP)
Title: Synchronized fault tolerant clocks for multiprocessor systems
IPC: G06F11/16
Filed: 1989-09-16
Abstract: A system for providing fault-tolerant synchronized 
operation of the Time of Day (TOD) clocks of the 
respective data processors in a multiprocessor complex. 
Basically, the system is comprised of a duplex 
implementation having redundant TOD clock sources, and 
a plurality of TOD slaves which provide the TOD clocks 
in the associated processors. A register/counter in 
each TOD clock source is incremented by a high 
frequency signal to achieve the required TOD value 
resolution, and the latter signal is divided down to 
provide a lower reference frequency signal for 
synchronization of the clock sources. Each TOD slave 
includes means for receiving a pair of reference 
frequency signals and for trouble-free switching 
between the signals, as required. Alternately, a quad 
implementation of clock sources which is substantially 
free of single points of failure of the synchronization 
mechanism is described. Frequency steering of the clock 
sources provides increased accuracy and conformity to 
real time when desired.
Patent EP-0370519-A3 (EP)
Title: An image fixing apparatus
IPC: G03G15/20
Filed: 1989-11-24
Abstract: An image fixing apparatus (20) includes a heater (21) 
which is fixed during an image fixing operation and 
which has a heat generating layer (28) in the form of a 
line; a film (23) movable in sliding contact with the 
heater (21), wherein a toner image on a recording material 
is heated by heat from the heater (21) through the film (23); 
wherein the heater produces amounts of heat which are 
different in a direction crossing with a movement 
direction of the recording material (P) in accordance with 
amount of heat transfer.
Patent EP-0346958-A3 (EP)
IPC: G02B6/44
Filed: 1989-05-19
Abstract: Die Erfindung bezieht sich auf eine Vorrichtung zur 
Herstellung eines tordierten, aus mindestens zwei 
Mehrfach-Lichtwellenleiter-Flachbändern (LWL-Bänder) 
bestehenden Stapels, mit Aufnahmeeinrichtungen für 
aufgewickelte LWL-Bänder enthaltende Vorratsspulen und mit 
einer gegenüber einem raumfesten Tordierlager drehbaren, 
die LWL-Bänder führenden Tordiereinrichtung. Auch bei 
hohen Tordierdrehzahlen wird ein einwandfreier und die 
LWL-Bänder nicht unzulässig belastender Abwickelvorgang 
dadurch ermöglicht, daß die Vorratsspulen (8,9) um eine 
gemeinsame raumfeste Achse (21) mit vorgebbarer Bremskraft 
drehbar sind, und daß die Tordiereinrichtung mindestens 
ein um die raumfeste Drehachse (21) der Vorratsspulen 
(8,9) drehbarer, die Vorratsspulen (8,9) umgreifender und 
Umlenkungsführungen (31 bis 34) für LWL-Bänder (16,17) 
enthaltender Tordierflügel (10) ist.
Patent EP-0351198-A3 (EP)
Title: Synthesis of refractory metal boride powders of predetermined particle size
IPC: C04B35/58
Filed: 1989-07-11
Abstract: Metal boride powders can be produced with a 
predetermined particle size by controlling reaction 
conditions. The metal boride powder is produced by 
reacting a solid boron source, a metal source and a 
reductant under conditions sufficient to produce a metal 
boride powder with a particle size correlating to that 
of the solid boron source. The reaction is preferably 
stopped after the formation of products but before any 
appreciable crystal growth occurs.
Patent EP-0356023-A3 (EP)
Title: Guitar pick
IPC: G10D3/16
Filed: 1989-07-28
Abstract: An artificialguitar pick (10) including 
a copuler (18) for attaching an 
artificial nail (14) to the end of a natural 
nail (22). The coupler (18) has grooves 
into which the natural nail and the artificial nail are inserted. The 
artificial nail (14) has a curvature that approximates that of natural 
nails. The guitar pick (10) does not cause any unnatural feeling to the 
player.