baber/WOPTO huggingface dataset:
Patent CS-273403-B1 (CS)
Title: Method of n-methyl-n-(2-cyanophenyl)carbamoyl chloride preparation
Inventor: PAZDERA PAVEL RNDR CSC
IPC: C07C255/60
Filed: 1988-11-24
Abstract: The invention concerns a method of production of N-methyl-N-(2-cyanphenyl)carbamoyl chloride of formula I by reaction of 1-methylisatin-3-oxime of formula II with thionyl chloride in excess without the presence of solvent at 40 to 50 degrees C. The substance of formula I is re-crystallised from cyclohexane after distillation off of un-reacted thionyl chloride. The substance of formula I is used for synthesis of 3-substituted 1-methyl-1-(2-cyanphenyl)urea, which has pesticide action, or is used as an intermediate product for synthesis of substituted quinazoline with applications in pharmacology (antimalarial, sedative, antifollicular) and in agriculture (pesticides, growth stimulators).<IMAGE>
Patent CS-247808-B1 (CS)
Inventor: ENGLIS KAREL
IPC: B65H18/00
Filed: 1984-10-19
Abstract: Zapojení hydraulického pohonu pro zařízení
provádějící operační pracovní úkony
na kontinuálně zpracovávaných materiálech
řeší plynulý rozběh a doběh zpracovávaného
materiálu podle předem zvolené funkce,
vybití kinetické energie při doběhu
a tím zamezení deformace nebo přetržení
zpracovávaného materiálu, nastavení požadovaných
malých tahových napětí a blokování
celého zařízení proti zpětnému chodu.
Podstata řešení spočívá v tom, že hydrogenerétor
je s příslušným hnacím hydromotorem
zařízení spojen přes proporoio- .
nální redukční nebo škrtící ventil s hydraulickým
rozvaděčem, přičemž na každý proporcionální
ventil je napojen vždy jeden
elektronicky řídící prvek s jedním z regulačních
zařízení, pro rychlost posuvu
a velikosti tahu zpracovávaného materiálu.
Patent CS-244397-B1 (CS)
Inventor: KOURIL JAN
IPC: A01K61/17
Filed: 1984-10-06
Abstract: Způsob získávání jiker při umělém
výtěru lína obecného /Tinca Tinca L./,
okounka pstruhového /Micropterus samoni·»
des Lacepede/ a sumce velkého /Silurus
glanis L./, jehož podstatou je, že v době
předvýterové zralosti se podává jikrnačkám
intramuskulámě analog luliberlnu,
přirozeného hypothalamického peptldového
faktoru, obecného vzorce I.
Glu-His-Trp-Ser-Tyr-D-Ala-Leu-Arg-ProNH-C2H5
v dávkách 5 až 20 mg/kg živé hmotnosti
ryby. U lína obecného se jikmačkóm chovaným
s výhodou ve vodě teplé 21 až 23 °C
podá tento analog v dávce 5 až 20 mg/kg
hmotnosti ryby.
Vynález využívá synthetického analoga
LH-RH k umělému výtěru jiker u uvedených
druhů ryb. Používá se velmi malých dávek
téměř čisté látky, a proto výskyt komplikací
na rozdíl od dosud používané hypofysy,
která často končí úhynem nebo poruchami
reprodukčního cyklu s nutností vyřazení
z chovného hejna, je minimální.
Patent CS-211440-B1 (CS)
Inventor: CHRENKOVA-PAUCIROVA MARTA
IPC: C25D3/44
Filed: 1975-12-15
Abstract: Vynález sa týká sposobu vylučovania
hlinika s cinora alebo olovom v prostředí
roztavených solí.
Podstata vynálezu spočívá v tom, že
zliatina sa na pokovovanej časti vytvoří
elektrolyticky z taveniny o zložení 70 až
30 hmot. % chloridu hlinitého, 20 až 29
hmot. % chloridov alkalických kovov, 0,5
az 2 hmot. % tetraalkylamonium halogenidu
a 0,1 až 3 hmot. % cínu, resp. olova, pri
teplóte 150 až 220 °C, katodickej prudovej
hustotě 2 až 25 A.dm”2 počas trvania elektrolýzy
5 až 30 minút.
Navrhovaný sposob podlá vynálezu má
využitie na antikoróznu ochranu železných
plechov pre účely automobilového priemyslu,
alebo pre povrchová úpravu v iných odvetviach
priemyslu.
Patent CS-233248-B1 (CS)
Inventor: JURIK STEFAN
IPC: G01P21/00
Filed: 1983-11-18
Abstract: Kalibračný přístroj je určený pre skúšobne
membránových akcelerometrov. Podstata
přístroje spočívá v tom, že skúšobný
akcelerometer je otočné uložený na čapě,
umiestnenom v radiálně posúvatelnom suporte
pomocou skrutky fixovanej delenou
vložkou. Přitom sa radiálna vzdialenost
skúšobného akcelerometra indikuje na lineárnej
stupnici a uhol natočenía na kruhovej
stupnici, ktoré sú umiestnené na
doske.otočného štola, na ktorom je upevněný
aj otáčkoměr na indikáciu otáčok
elektromotorčeka Qtáčajúceho otočný stfil.
Přístroj možno v širokom rozsahu zmien
zrýchlenia využit na presnú kalibráciu
membránových akcelerometrov.
Patent CS-238136-B1 (CS)
Inventor: HERING JAROSLAV
IPC: B60P7/13
Filed: 1983-11-29
Abstract: Řešení se týká zařízení pro skládání
a nakládání typů mezinárodních kontejnerů
s rohovými úchyty, které jsou přepravovány
na vozidle, opatřené dvoulanovým navijákem
s brzdou, zařízení pro samočinné vyrovnávání
tahu lan dvoulanového navijáku a signalizací
polohy kontejneru vzhledem k vozidlu.
Podstata řešení spočívá v tom, že na
dolní podélné hrany kontejneru jsou odnimatelně
upevněny alespoň dva přídavné nosníky,
na kterých je vytvořen úchyt lan a úchyt
kontejneru. Proti nosníkům jsou umístěny
ve sklopném rámu nosné kladky a vodicí kladky.
Patent CS-223504-B1 (CS)
IPC: G01N15/00
Filed: 1980-12-29
Abstract: Vynález ss týká měření měrného povrchu
práškových materiálů ve stavebním,
ls i potravinářském a chemickém průmyslu,
čelem vynálezu je zlepšení přesnosti měření
a rozšíření měřicího rozsahu přístroje.
Tohoto účelu je dosaženo způsobem podle
vynálezu spočívajícím v tom, že vzorek
materiálu se nasype de měřicí nádoby
a vibracemi se upraví na geometricky definovatelný
tvar, pak se změří jeho objem
a pneumatický odpor, jako doba průchodu
konstantního množství vzduchu pres měřený
vzorek, načež se měrný pevreh stanoví na
základě matematického vyjádření vzájemné
souvislosti jednotlivých naměřených a zadaných
veličin. Zařízení pro provádění tohoto
způsobu sestává z měřicí nádoby opatřené
snímačem objemu vzorku.a pevně spojené
s vibračním budičem, do dna aěřioí
nádoby ústí přívod tlakového vzduchu, na
nějž jo připojen měřič pneumatického odporu,
na jeho výstup jo připojen první
vstup vyhodnooovaoí jednotky s druhým
vstupem spojeným s terminálem pro zadání
- koeficientu měrné hmotnosti a třetím vstupem
připojeným na výstup snímače objsmi
vzorku.
Patent CS-264085-B1 (CS)
Inventor: VESELY JAROMIR ING
IPC: F16D43/02
Filed: 1987-12-18
Abstract: Řešení se týká konstrukce odstředivé
spojky, používané zejména u chladírenských
přepravníků, kde je třoaa používat
spojku o nízkou hmotností, což
je tek-é účelem řečení. Podstata řečení
spočívá v tom, že na unášecím tělese
spojky jsou po obvodu uspořádány unášecí
výstupky, umístěná mezi závažími, přičemž
na těchto výstupcích a závažích jsou provedeny
šikmé styčné plochy, sbíhající ae
ve směru k unáaecxmu bubnu.
Patent DK-167307-B1 (DK)
Title: Device for removal of tartar
Inventor: HETZEL MAX
IPC: B06B1/02
Filed: 1989-04-24
Granted: 1993-10-11
Abstract: PCT No. PCT/CH88/00144 Sec. 371 Date Apr. 25, 1989 Sec. 102(e) Date Apr. 25, 1989 PCT Filed Aug. 24, 1988 PCT Pub. No. WO89/01763 PCT Pub. Date Mar. 9, 1989.A dental scaler comprises a hollow sleeve and, arranged inside it, a vibrating piezoelectric transducer bearing a scraper, the extremity of which protrudes from the sleeve, and includes an amplifier connected to the transducerk. The transducer includes a base, of a series of piezoelectric chips on the surfaces of which are arranged electrodes connected in such a manner as to define an input and an output, and a head to which the scraper is coupled. The amplifier has an input, an output and two feeder terminals receiving a low direct voltage by way of a cable connected to an external source of voltage. The output and input of the transducer are connected, respectively, to the input and the output of the amplifier to form an oscillator, the frequency of which is determined by the resonant frequency of the transducer coupled to the scraper.
Patent DK-168973-B1 (DK)
Inventor: HOLTE THOR ASBJ RN
IPC: H01B9/02
Filed: 1989-09-22
Granted: 1994-07-18
Abstract: This invention relates to electrical power cables having crosslinked extruded insulation (4) and fully bonded extruded semiconductors in contact with the conductor (2) and with the outer screens (6) respectively. In order to provide smooth interfaces between the semiconductors and the insulation and prevent pre-crosslinked semiconductor clots from appearing at the inner (and outer) surface of the insulation layers, the semiconductors are extruded as a composite structure the inner parts (3b, 5b) of which are free from crosslinking agents.
Patent DK-169637-B1 (DK)
Inventor: LELY ARY VAN DER
IPC: A01C17/00
Filed: 1985-10-28
Granted: 1995-01-02
Abstract: The implement has a spreader impeller (4) rotatable around an upwardly extending axis. The impeller has a spreader blade (144) with an upwardly extending wall. The latter, during operation, moves across a discharge aperture through which material can be delivered to the rotor. An upper edge of a portion of the wall of the blade moves beneath the discharge aperture. The upper edge portion slopes downwardly toward the periphery of the spreader when the latter is horizontal.
Patent DK-171300-B1 (DK)
Inventor: YOSHINO HIROSHI
IPC: A61K38/08
Filed: 1985-11-07
Granted: 1996-08-26
Abstract: There is disclosed a novel polypeptide, a process for preparing the same, a pharmaceutical composition containing the same as well as the use thereof. The novel polypeptide which is useful as an analgesic corresponds to the formula given below: 
<CHEM>
 wherein the meaning of R<1> and R<2>, A, B, C, D, E, and F is the same defined in the claims.
Patent DK-174945-B1 (DK)
Inventor: HECKERT DAVID CLINTON
IPC: A23L2/02
Filed: 1986-12-23
Granted: 2004-03-15
Abstract: Beverages and beverage concentrates nutritionally supple­mented with significant levels of solubilized calcium are disclosed. The beverages and concentrates are substantially free of a sugar alcohol and contain specified levels of total edible acids selected from mixtures of citric, malic and phosphoric acid. The weight ratio of total acids to calcium, as well as the particular acid mixtures, are selected to provide beverages and concentrates having good stability against precipitation of insoluble calcium salts, satisfactory initial taste/mouthfeel, substantial freedom from objectionable aftertaste and desirable calcium absorbability/ bio­availability properties.
Patent IE-36668-B1 (IE)
Title: A smoking cartridge
IPC: A24D1/14
Filed: 1972-09-05
Abstract: 1354015 Cigarettes; tobacco cartridges; smokers' pipes IMPERIAL GROUP Ltd 4 Sept 1972 [28 Sept 1971] 45017/71 Headings A2C and A2M A smoking device, which may be a cigarette or, as shown, a tobacco cartridge 10, comprises a tobacco filler 12 wrapped in a laminate of an inner combustible material, e.g. tissue paper 9, and an outer incombustible material, e.g. aluminium foil 8, at least the outer incombustible material being perforated, e.g. with embossed perforations 13, to assist combustion. An incombustible filter 16 provided with bores 17, connects the cartridge 10 with a chamber 15 in a cup-like support 14. A pipe-like device for use with the cartridge 10, includes a moulded plastics or die cast aluminium cartridge holder 30 to which is fixed a plastics or wooden bowl 40 and an aluminium liner 38. A steel tube 44 connects the chamber 15 with the bore 52 of a mouthpiece 51. A triangular extension 18 of the support 14 keys into a triangular aperture in the holder 30.
[GB1354015A]
Patent IE-53321-B1 (IE)
Title: Misoperation prevention circuit
IPC: H03L7/00
Filed: 1982-06-18
Abstract: An integrated circuit (IC) has an oscillation circuit (OSC), for generating clock signals (CLOCK), an internal logic circuitry. When the internal logic circuitry (IC) is not required to be in a operational mode, operations thereof and operations of the oscillation circuit (OCS) are terminated. To prevent misoperations the internal logic circuitry is restored to the operational mode only after restored operations of the oscillation circuit (OSC) are stabilised. …A misoperation prevention circuit comprises an integrating circuit (R, C) which receives a control signal for restoring operations. The integrating circuit delivers a voltage which increases as time passes. A first gate circuit (G1), having a lower threshold level, is arranged to receive the voltage provided, by the integrating circuit (R, C) and when that voltage reaches the lower threshold level operations of the oscillation circuit (OSC) are triggered. A second gate circuit (G2), having a higher threshold level, is also connected to receive the voltage provided by the integrating circuit (R, C). Only when the voltage provided by the integrating circuit reaches the higher threshold level, after a time sufficient for stabilization of the oscillation circuit (OSC) does the second gate circuit (G2) provide a control signal (A) which restores the internal logic circuitry to the operational mode.
Patent IE-39313-B1 (IE)
Title: Shear cutter
IPC: B23D15/12
Filed: 1973-08-27
Abstract: 1439464 Shearing A R HANDLEY 24 Aug 1973 [9 Sept 1972] 41975/72 Heading B3W A blade 6 with a curved cutting edge cooperating with a fixed blade 4 is actuated by reciprocation of a sleeve 11 along a shaft 12 through links 14, 15 pivoted to the sleeve at 17, 20 and to the blade holder 5 at 16, 19 respectively, shoes 25 on the holder 5 sliding on guides 26 to prevent longitudinal movement of the blade 6 as its pivot point moves along the cutting edge during a shearing stroke. The sleeve 11 is fixed to an hydraulic cylinder (10) which is moved along a piston-rod (9) fixed to the shear frane, Fig. 2, not shown.
[GB1439464A]
Patent IE-51422-B1 (IE)
Title: Preparation of silicon from quartz and carbon
IPC: C01B33/02
Filed: 1981-07-22
Abstract: A process for producing silicon in which a reaction mixture consisting, on the one hand, of hot-pressed briquettes of silicon dioxide (quartz) and carbon and, on the other hand, of granular quartz are introduced into an electric furnace and reacted so that silicon carbide is produced from the agglomerates and the silicon carbide then reacts with the quartz which fuses from the granular quartz to produce elemental silicon.
Patent IE-38380-B1 (IE)
Title: Patent of addition to (61) no.37244
IPC: B63B22/02
Filed: 1973-10-15
Abstract: A combined mooring and loading system for the transfer of cargo (e.g., oil) from a floating offshore storage terminal (e.g., a vessel or other suitable floating member) to a shuttle tanker moored in tandem. The system includes a floating hose between the storage terminal and the shuttle tanker, which when not in use is stored on the storage terminal. A trolley is provided for retraction and paying out of the hose; and the hose is equipped with check valves at both ends to trap cargo within the hose when it is disconnected.
[US3833032A]
Patent IE-58746-B1 (IE)
Title: Process for rapid curing of polyether polyurethane foam
IPC: C08G18/00
Filed: 1985-08-30
Abstract: A process for the rapid post curing of polyether polyurethane foam in the form of porous blocks in which the foam is subjected to a mixture of water vapor and gaseous ammonia, primary or secondary amines at a temperature of about 50 to 150° F. For a period of 1 or more minutes. The cured foam recovers its original dimensions when distorted or compressed after the distortion or compression force is released.
Patent IE-55866-B1 (IE)
Title: Locking devices
IPC: E05B67/38
Filed: 1981-12-01
Abstract: A fastening means for shutters, doors or windows, particularly as a "ground lock" for roller shutters, comprises: an eye-bolt (3) forming a staple removably screwed into an anchorage element (2) secured in the group and having an internally threaded portion (11) spaced from the open end of the anchorage element (2); and an abutment member (40) secured to the leading edge of the shutter (1), door or window, and having a slot (48) into which the eyebolt (3) can pass. The abutment member (40) comprises a hasp portion (43) and two wall portions (44, 45) forming a housing for a padlock (41). A guard plate (52) is provided at one end of the abutment member to bridge the wall portions (44,45) and prevent the bolt being forcibly driven through the padlock. In a second embodiment, the abutment member has no wall portions but has an upstanding lug adjacent the slot, the lug having an aperture adapted to register with the aperture of the eyebolt so that both apertures can receive the bolt or shackle of a lock.
Patent IE-71177-B1 (IE)
Title: Oxaza substituted phosphines
Inventor: LEE SUNG J
IPC: C07F9/6533
Filed: 1992-02-18
Abstract: A new class of phosphines in which the phosphorous atom is bonded directly to the carbon of an oxazinone:   <IMAGE>   In addition to their anti-inflammatory activity, these phosphines are useful as intermediates in producing compounds where the phosphine is replaced by a benzylidine, compounds which have also been proven useful in the treatment of inflammation and other conditions associated with arthritis.
Patent JP-2996247-B1 (JP)
Title: 過電圧保護素子及びそれを用いた過電流保護回路
IPC: H02H3/20
Filed: 1999-01-13
Granted: 1999-12-27
Abstract: 【要約】
【課題】  過電流を検出することにより被保護回路への 回線を遮断するとともに、過電流が入力したことを報知 し、過電流が無くなると通常状態に自動的に復旧するこ とができ、保守性及び信頼性に優れた過電圧保護素子及 びそれを用いた過電流保護回路を提供する。
【解決手段】  被保護回路の入力側に接続され被保護回 路への過電流の入力を防止する過電圧保護素子であっ て、過電圧の印加に対して短絡状態となる過電圧保護部 ２と、過電圧保護部２に直列接続され入力する過電流を 検出する第１の発光部２３と、過電圧保護部２及び第１ の発光部２３と並列接続され第１の発光部２３に入力す る過電流と逆方向の過電流を検出する第２の発光部２４ と、第１または第２の発光部２３、２４の発光に基づき 過電流検出信号を出力する受光部２５とを備えたことを 特徴とする。
Patent LU-100125-B1 (LU)
Title: Electrothermal stove
Inventor: WU LIQING
IPC: F24C7/08
Filed: 2017-03-07
Granted: 2017-06-19
Abstract: The present invention discloses an electrothermal stove, comprising a stove body (1), a heating plate (2) arranged on the stove body (1), a bidirectional triode thyristor (3) connected between a power plug (6) and the heating plate (2), and a controller (5) connected to the bidirectional triode thyristor (3), wherein the bidirectional triode thyristor (3) is arranged inside the stove body (1) and the controller (5) is arranged outside the stove body (1). The present invention has benefits of low noise and is capable of effectively ensuring the normal work of the product.
Patent LU-100636-B1 (LU)
Title: Energy-saving drying device
Inventor: CHEN YULING
IPC: A23B4/005
Filed: 2017-12-22
Granted: 2018-05-15
Abstract: The present invention relates to an energy-saving drying device which comprises a box body, a heating box, a ventilating wind chamber, a fan, ventilation holes, a heating chamber and drying frames. The heating box is disposed on the lower side of the box body, and the ventilating wind chamber is arranged on one side of the box body; the ventilating wind chamber is isolated from the box body through a heat insulation plate, the ventilation holes are formed between the ventilating wind chamber and the box body, the fan is positioned on the outer side of the ventilating wind chamber and connected with a motor; a door is arranged on the front side of the box body, the plurality of drying frames are positioned inside the box body, the heating chamber is disposed on the lower side inside the box body, and an open structure is positioned between the heating chamber and the box body. The energy-saving drying device is simple in structure, low in manufacturing cost, good in drying effect and high in efficiency, saves labor, and is favorable for product popularization. FIG. 2
Patent LU-103104-B1 (LU)
Title: Simulation method for electronic music signal identification model based on big data algorithm
Inventor: TANG YAPING
IPC: G10H1/00
Filed: 2023-04-27
Granted: 2023-11-30
Abstract: The invention discloses an electronic music signal identification model based on FCM algorithm. The results show that the electronic music signal detection accuracy and intelligence of the algorithm are high, and the electronic music signal detection time is short. Big data algorithm can greatly improve the identification effect of electronic music signals, improve the identification speed of electronic music signals, and meet the online identification of electronic music signals. .
Patent LU-501258-B1 (LU)
Title: A composition with anti-obesity effect and a preparation method thereof
Inventor: RICHARDSON DAVID P
IPC: A61P3/04
Filed: 2022-01-18
Granted: 2022-07-18
Abstract: The invention discloses a composition with anti-obesity effect and a preparation thereof. The composition comprises 15-40 servings of extract of Prunus domestica peel, 15-20 servings of extract of Actinidia chinensis Planch seed, 10-50 servings of Paullina cupana extract and 10- 50 servings of Garcinia cambogia extract. It has the effect of weight loss and fat elimination, and the long-term use takes an excellent therapy effect on people suffering from high blood pressure and hyperlipidemia, which is of high commercial, practical and promotion values.
Patent LU-501928-B1 (LU)
Title: Method for improving welding performance of high-strength low-alloy steel by using rare earth
Inventor: LI JING
IPC: B23K35/30
Filed: 2022-04-26
Granted: 2022-10-25
Abstract: This invention sequentially comprises converter smelting, LF refining, RH refining, continuous casting, hot rolling and heat treatment, wherein Nb and Ti are added in the LF refining process for micro alloying treatment, and rare earth Ce alloy is added in the RH refining process; wherein, the method improves the cleanliness of molten steel before adding rare earth Ce alloy by controlling the oxygen and sulfur content in converter smelting, LF refining and RH refining, moreover, the method also controls the occurrence state of rare earth in steel is control by controlling the addition amount of rare earth Ce alloy, and promotes the precipitation of Nb and Ti carbonitrides by solid solution rare earth. The technology of the invention can be applied to Nb and Ti micro alloyed steels in the engineering machinery, oil pipelines, ocean engineering and other fields, which is used for improving the welding performance of steel plates.
Patent NO-302476-B1 (NO)
Inventor: MARESCAUX CHRISTIAN
IPC: A61K31/685
Filed: 1991-06-21
Abstract: Compounds having GABAB-antagonistic properties, for example those of formula I    <IMAGE>  (I)  wherein one of the radicals R1, R2 and R3 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another is hydrogen or, in the case of R1 or R2, hydroxy or, in the case of R1, halogen or, in the case of R2 together with R2', oxo, and the remaining radical is hydrogen, R1' is hydrogen or halogen, R2' is hydrogen, hydroxy or, together with R2, is oxo, R4 and R5 are hydrogen or R4 is an araliphatic or heteroarylaliphatic radical and R5 is hydrogen or an aliphatic radical, and R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical having at least 2 carbon atoms or, when R1 is hydrogen or hydroxy, R2 is an aromatic radical and R1', R2' and R3 are hydrogen, R is methyl, and their pharmaceutically acceptable salts, can be used as active ingredients in medicaments for the treatment of epilepsies of the "petit mal"  type. The invention relates also to novel compounds of formula I and processes for the preparation thereof.
Patent NO-302410-B1 (NO)
Inventor: LOOKER ROBERT
IPC: B65D90/02
Filed: 1992-01-22
Abstract: In order to be able to utilize polycarbonate sheet material (12) as a structural (i.e. stress-bearing) component in an assembly comprising polycarbonate (12) and metal (10) components, as, for example, in a monocoque air cargo container wherein the polycarbonate sheet material (12) is used as the ''skin'' of structure, an attachment assembly is utilized to provide a rigid, stress-bearing joint without inducing crack-inducing high levels of localized stress on the polycarbonate sheet (12). The attachment assembly (14) comprises a significant area of overlap between the polycarbonate (12) and metal (10) components, and an attachment strip (14) which substantially covers the attachment area. Rivets or bolts (16) are inserted through oversized holes in the metal (10), polycarbonate (12), attachment strip assembly (14) and then torqued. The compressive forces exerted thereby create the rigid joint (even in an environment where the joint is subject to 180 F+/- temperature cycling such that the different coefficients for thermal expansion for the polycarbonate vs. the metal become significant) but are spread over a sufficiently large area so as to avoid high, localized stress levels which would induce the polycarbonate to crack.