baber/WOPTO huggingface dataset:
Patent MY-170736-A (MY)
Title: A plant bag
Inventor: LISNEZA BINTI ROSELI
Filed: 2017-04-28
Abstract: The present invention relates to a plant bag (100) that is biodegradable and capable in providing nutrients to plants. The plant bag (100) is made from organic substance and a microorganism. The organic substance consists of bagasse and eggshell while the microorganism incorporated is mycelium which is a type of fungus mushroom. Bagasse is an agro industrial organic waste of sugarcane in the form of fibrous matter. Eggshells are added as a source of calcium carbonate or alkali. The calcium carbonate helps in reducing the acidity of soil and eventually neutralizing the soil. The third component, mycelium, is a mushroom fungus type of microorganism. Mycelium is used in breaking down carbon, nitrogen and biological matter.
Patent SG-10201709401Q-A (SG)
Title: SiC WAFER PRODUCING METHOD
Inventor: KAZUYA HIRATA
Filed: 2017-11-15
Abstract: SiC WAFER PRODUCING METHOD An SiC wafer producing method includes a modified portion forming step of setting a focal point of a pulsed laser beam having a transmission wavelength to single crystal SiC inside the ingot at a predetermined depth from an end surface of the ingot, the predetermined depth corresponding to the thickness of the wafer to be produced, and next applying the pulsed laser beam to the ingot, thereby forming a small circular modified portion on a c-plane present in the ingot at the predetermined depth, in which the modified portion is a region where SiC has been decomposed into Si and C. The SiC wafer producing method further includes a separation layer forming step of forming a separation layer for separating the wafer from the ingot, the separation layer being composed of a plurality of continuous modified portions each formed by the modified portion forming step and a plurality of cracks isotropically formed on the c-plane so as to extend from each modified portion. (Figure 4)
Patent SG-10201909965R-A (SG)
Title: Information processing device, content requesting method,and computer program
Inventor: YAMAGISHI YASUAKI
Filed: 2014-04-16
Abstract: INFORMATION PROCESSING DEVICE, CONTENT REQUESTING METHOD, AND COMPUTER PROGRAM [] To provide an information processing device in which maintenance is enabled by avoiding an increase in an amount of the meta information when a device is remotely controlled by a client using the ABS technique. [Solution] Provided is an information processing device including: a storage unit configured to store a predetermined definition for adding a parameter to access information for accessing each of a plurality of subsegments constituting each piece of encoded data obtained by encoding same content at a different bit rate, or for accessing every element to be acquired through a request to a server described in an MPD; and a communication unit configured to access an address defined in the access information by designating a parameter based on the predetermined definition stored in the storage unit. The address defined in the access information is an address for controlling a device which images the content. FIG. 1
Patent SG-11201408155R-A (SG)
Title: Epoxy resin composition and cured product thereof and curable resin composition
Inventor: NAKANISHI MASATAKA
IPC: C08G59/26
Filed: 2013-06-06
Abstract: (i2) mwu ft iz s-5 iv x m £ titz s issaj n d9) mm IHMMi _ (41) SI5S4>!H B 2013# 12 fll2 0(12.12.2013) w , PO |pCT (10) WO 2013/183736 A1 (51) C08G 59/26 (2006.01) (21) (22) (25) PCT/JP2013/065756 2013 ^6^ 6 0(06.06.2013) (26) (30) fiBfcfix — £: 4#Jg| 2012-129406 2012 ^6^ 7 0 (07.06.2012) JP ¥f$k 2012-129408 2012 ^6^ 7 0 (07.06.2012) JP (71) ttiJiA: 0^bil^^£tt(NIPPONKAYAKUKA- BUSHIKIKAISHA) [JP/JP]; 1028172 T EI±1 1 T g 1 1#2^ Tokyo (JP). (72) cf 3 ffi S5f |5§ (NAKANISHI Masataka); T 1158588 KifvfMtE/SJl 3-31-12 0^ Tokyo (JP). jlJl jf~(EBARA Seiji); T 1158588 HiflfMbE /S/S; 3 3 1 12 0 TokyoJJP). #± — * (INOUE Kazuma); T 1158588 |Ci?v tMb I* 3 1-12 Tokyo g_p). #;tH(OBUCHI Kazumi); T 1158588 ESS 3-31-12 0*lbli:|*3e£ttA Tokyo (JP). (74) ftSA: A_ il^^jftSffFJUSHIN-EI PATENT FIRM, P.C.); T 1050003 Kifv tlUS I* E ®T T @ 7 # 1 3 ^ ><f 8 Tokyo (JP). jft/P K—X E ht^l/f-f (8i) (^ro&i^PBy. IS nj f b): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) *!£H (asrofci^isy > ±T(Dmm(Dfcm% V&tf nlfb): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), n. — V 7 (AM, AZ, BY, KG, KZ, RU, TJ, TM), 3 — • V / ^ (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). - (&&£ 21 &(3)) (54) Title: EPOXY RESIN COMPOSITION, CURED PRODUCT THEREOF, AND CURABLE RESIN COMPOSITION = (54)f6lEa>€ffc: m i> m oo i-H cn i-H o CJ O £ (2) (57) Abstract: This epoxy resin composition contains an epoxy resin represented by formula (2) and a carboxylic acid and/or a cationic polymerization catalyst, and has two or fewer hues in the Gardner colorimetric method (40% MEK solution); this curable resin composition contains an epoxy resin represented by formula (2) and phenolic a resin and/or a polymerization catalyst (in the formula, the R's each independently represent a hydrogen atom, an alkyl group of 1-6 carbon atoms, or an alkoxy group of 1-6 car­ bon atoms.) (57) TIB5C (2) flg <!r. ± JI//K tz \£± \"fir £ K-f-itfefc (40%MEK;M) Icfc 2 itf* V TSBTC (2) tl-S X7f\dr vX7f\dr vlltfls <t ^ \"7 x/— »1~6( 7)7)\y^r)\y&, & L< liftSiai )
Patent SG-11201900337U-A (SG)
Title: Panoramic video compression method and device
Inventor: WANG TAO
IPC: H04N19/146
Filed: 2017-08-08
Abstract: Embodiments of the present application disclose a compression method and device of a panoramic video. The method comprises: for a target panoramic video, generating each frame picture of the target panoramic picture; for each frame picture respectively, compressing the frame picture; dividing the compressed frame picture; mosaicking the pictures obtained through the dividing; generating a new panoramic video according to all the pictures obtained through the mosaicking. With the embodiments of the present application, waste of network bandwidth can be reduced.
Patent SG-11201902566V-A (SG)
Title: Beam measurement method, terminal and network device
Inventor: YANG NING
IPC: H04B7/04
Filed: 2016-11-04
Abstract: Disclosed are a beam measurement method, a terminal and a network device. 5 The method comprises: a terminal receiving measurement configuration information sent by a network device, wherein the measurement configuration information is used for indicating a parameter used when measuring at least one beam; the terminal measuring the at least one beam according to the measurement configuration information to obtain a measurement result; and the terminal sending the 10 measurement result to the network device. By means of the beam measurement method in the present application, a terminal receives measurement configuration information sent by a network device and measures a beam according to the measurement configuration information to obtain a more accurate measurement result based on the beam, so that it is beneficial for the network device to configure the 15 terminal more efficiently according to the measurement result. FIG. 3
Patent SG-11201910024P-A (SG)
Title: Convolution acceleration and computing processing methods and apparatuses, electronic device, and storage medium
Inventor: LU LIQIANG
IPC: G06N3/04
Filed: 2018-04-27
Abstract: CONVOLUTION ACCELERATION AND COMPUTING PROCESSING METHODS AND APPARATUSES, ELECTRONIC DEVICE, AND STORAGE MEDIUM 5 Convolution acceleration and computing processing methods and apparatuses, electronic device, and a storage medium. The acceleration method comprises: reading data be of preset in task be from off-chip 10 memory of an accelerator in sequence by means of a FIFO port, and storing same in at least input region a cache in on-chip of accelerator; response storage the to processed the cache region, input data be from least input region in sequence, and performing convolution calculation on the input window data 15 to be processed by means of convolution kernel data to obtain output window data, and storing the output cache region ; and storing the output window data in the third cache region in the off-chip memory in sequence by means of FIFO The acceleration computing methods and apparatuses, the electronic device, and the storage medium can avoid the cases 20 that on-chip of accelerator bandwidth insufficient the processor resources are limited, improve the efficiency of convolution processing, and are appropriate for hardware platforms such as FPGA and ASIC. 25 FIG. 1
Patent HU-197324-B (HU)
Title: Improved process for producing quinoline-3-carboxylic acid derivatives of antimicrobial activity
Inventor: WEMPLE JAMES N
IPC: C07D471/08
Filed: 1987-01-12
Abstract: An improved process for the preparation of 7-substituted amino-l-alkyl- or cyclopropyl-6,8-difluoro-l,4-dihydro-4-oxo-3-quinolinecarboxylic acids is described where tetrafluorobenzoyl chloride is converted in three operations via l-alkyl or l-cycloalkyl-l,4-dihydro-6,7,8-trifluoro-4-oxo-­quinoline-3-carbonitrile which in a separate step or in situ is displaced and hydrolyzed to the desired product.
Patent ZA-9420-B (ZA)
Title: Preparation process for sulphurated derivatives of imidazole and the new internediates obtained.
Inventor: BHATNAGAR NEERJA
IPC: C07D233/84
Filed: 1994-01-04
Abstract: The subject of the invention is a process for the preparation of products of formula (I): <IMAGE>  in which:     R1 represents alkyl, alkenyl, alkynyl, alkylthio or cycloalkyl R2 and R3 represent in particular hydrogen, halogen, hydroxyl, mercapto, acyl, alkyl, alkenyl, alkoxy, alkylthio, phenyl, benzoyl, phenylthio, amino, carbamoyl, carboxyl, nitro, cyano or -(CH2)m1-S(O)m2-X-R10 with m1 representing 0 to 4 and m2 0 to 2 and X representing a single bond or -NH-, -NH-CO-, -NH-CO-O-, -N=CH-N-R13 or -NH-CO-NH- with R10 and R13 representing hydrogen, alkyl, alkenyl or carbo- or heterocycle, R4 represents in particular -(CH2)m1-S(O)m2-X-R10, -SO2NHCONR14 R15, -SO2NHSO2R14, -SO2NHCOR14, -SO2NHSO2NR14R15 or -SO2NHCO2R14 with R14 and R15 representing in particular hydrogen or alkyl.
Patent HU-189216-B (HU)
Inventor: PEK MARIA
IPC: B65D19/00
Filed: 1983-01-24
Abstract: A találmány tárgya konténer egységcsomagolt, különösen palackozott áruk, elsősorban italok és egyéb más üveges áruk, pl. konzervek árukínáló módon történő tárolására, illetve szállítására, amely konténer lényegében az árut befogadó tárolórészből és a tárolórészt határoló, az áru mozgatását, illetve szállítását segítő mozgatóelemekkel, illetve targoncás rakodáshoz távtartó tuskókkal ellátott tartószerkezetből épül fel. A találmány szerinti konténer tárolórésze, a tárolandó, illetve szállítandó egységcsomagolt árut különösen üvegeket - teherhordó elemként befogadó, a mindenkori egységcsomag, különösen üveg alakját követő alsó és felső fészkekből kialakított tartórészekkel rendelkező, legalább két tálcaelemből, míg tartószerkezete a tálcaelemeket egy többszintes kontéregységbe rendező és a kívánt helyzetben rögzítő, a tálcaelem furataiban elhelyezkedő és egyik végén szorítóelemmel ellátott átmenő összekötőrudakból van kialakítva. A találmány szerinti konténer egy másik célszerű kiviteli alakjának tartórésze a tárolandó, illetve szállítandó egységcsomagolt áruk - különösen üveget - teherhordó elemként befogadó, a mindenkori egységcsomag - különösen üveg - alakját követő fészekkel ellátott tartórészekkel rendelkező legalább két tálcaelemből van kialakítva, ahol a tálcaelem az egységcsomagolt áru alakja szerinti fészke a tálcaelem síkjával párhuzamos sík mentén két tálcaelemrészre osztott, és amely tálcaelemrészek a tálcaelem tartórészei között elhelyezkedő kapcsolóelemek révén csatlakoznak egymáshoz.  -1-
Patent HU-191988-B (HU)
Inventor: KISS LORANT
IPC: F24H1/14
Filed: 1984-01-26
Abstract: Die Erfindung betrifft einen regelbaren Kalt- oder Mischwasser abgebenden gasbeheizten Niederdruck-Wasserdurchlauferhitzer. Waehrend es das Ziel der Erfindung ist, einen mehrseitig verwendbaren Wasserdurchlauferhitzer zur Verfuegung zu stellen, der kostenguenstig herstellbar und betriebssicher einsetzbar ist, besteht die Aufgabe darin, einen Wasserdurchlauferhitzer mit einem Hauptbrenner, einem Waermeaustauscher, einem vor dem Hauptbrenner eingebauten Regelventil, wobei zwischen dem Regelventil und dem Waermeaustauscher ein Temperaturwaehlerventil angeordnet ist, zu schaffen, bei welchem die eingestellte Temperatur des Mischwassers konstant und unabhaengig ist von den Druckschwankungen des Wassernetzes. Erfindungsgemaess wird diese Aufgabe dadurch geloest, dass das Temperaturwaehlerventil in einer mit dem Waermeaustauscher parallel geschalteten Umkehrleitung bzw. Umkehrbohrung angeordnet ist und die Umkehrleitung bzw. Umkehrbohrung von dem unter der Membrane befindlichen Raum des Regelventils abzweigt. Fig. 2
Patent HU-183829-B (HU)
Title: Extruding head for extruding shutter pieces, closing plates and similars and the so made extruded product
Inventor: CALCAGNI MARIO
IPC: B29C48/12
Filed: 1982-02-19
Abstract: The extrusion head comprises a first extrusion outlet surrounding an aperture wherethrough a metal section can be fed and a second extrusion outlet located externally to the first extrusion outlet, the latter being communicated to a first feed branched channel for the plastics material to be extruded, extending substantially perpendicularly to the feed direction of the metal section, while the second extrusion outlet is in turn communicated to a second plastics material branched channel also perpendicularly extending to the feed direction of the metal section and substantially juxtaposed to the first channel.
Patent HU-184518-B (HU)
Title: Fire protection self-rescue and person transporting device particularly for high buildings
Inventor: PETRASITZ FERENC
IPC: A62B1/08
Filed: 1982-03-23
Abstract: Vertical cableways formed from endless cables are arranged along one or more delimiting walls of the building. Inserted between the cables are carriages which are guided on the building walls at given spacings and between which treadplates are mounted. Also arranged on the cableways are vessels which can be filled up with water and which are filled up with water from a filling line provided with outlet nozzles. The shaft of the cable drums of the cableways is coupled to a brake device which is active depending upon the cable speed. On the falling strand of the device, an access platform is arranged for each storey, which is accessible via a safety waiting room and an escape door and from which the steps can be reached. Along the rising strand of the device, there are designed in the ground floor an access door and in the individual storeys exit doors. The device is surrounded on all sides in a fireproof manner by elements belonging to the building. In the event of escape, the device is set in operation by the persons climbing on the steps and under the weight of the water flowing into the vessels on the falling strand of the cableways.
Patent IT-1242808-B (IT)
Title: Anti-theft display device, particularly for compact discs and the like
Inventor: NECCHI PIETRO
IPC: G09F/
Filed: 1990-09-14
Granted: 1994-05-18
Abstract: The invention relates to an anti-theft display device, for compact discs and the like, which enables the compact discs to be removed and inserted independently and to be arranged in a convenient alphabetical order. This display device is characterized by a display support 1 comprising two parallel lateral guides 3, 4 consisting of grooves which are open at their sides facing each other. Cases 2 for compact discs and the like are mounted on the support 1 in alignment with each other, and one behind another, between the lateral guides 3, 4, and have, transversely with respect to the guides and to the edges of their side 102 associated with the display support 1, external projections 5, 6 which are coaxial with each other and are engaged in the corresponding lateral guides 3, 4, so that each case 2 can be individually extracted from or inserted into the display support 1 directly from and into any position with respect to the remaining cases 2, by being brought into an essentially inclined position with respect to the lateral guides 3, 4, and cannot be disengaged from the lateral guides 3, 4 when it is in a position orthogonal to them. <IMAGE>
Patent LT-3675-B (LT)
Title: Indenoindole copounds ii, process for preraring them and pharmaceutical composition containing them
Inventor: SAINSBURY MALCOLM
IPC: A61K31/40
Filed: 1993-08-30
Abstract: Compounds of the formula <CHEM>  wherein R is hydrogen or a lower alkyl group or COR<1><5> R<1>, R<2>, R<1><1> and R<1><2>, are hydrogen or a lower alkyl group, R<3>, R<4>, R<5> and R<6> are hydrogen, hydroxy, halogen, a lower alkyl group, a lower alkoxy group or a mono- or di-lower alkyl amino group, NH2 or NR<1><3>COR<1><4>, R<7>, R<8>, R<9> and R<1><0> are hydrogen, hydroxy, a lower alkyl group, a lower alkoxy group, a mono- or di-lower alkylamino group, or NH<1><3>COR<1><4> wherein R<1><3>, R<1><4> and R<1><5> are hydrogen or a lower alkyl group, enantiomers and salts thereof, with the proviso that when R is COR<1><5> then at least one of R<3> to R<1><0> are hydroxy or a mono or di-lower alkylamino group, are useful as antioxidants, within the medical and non-medical field. Many of the compounds of formula IA and IB are new and various methods for preparing them are described.
Patent ME-01600-B (ME)
Inventor: THUM THOMAS
IPC: C12Q1/68
Filed: 2009-02-26
Abstract: Ovaj  pronalazak   se odnosi na   promotor ski  region  iz   mikroRNK ,  na  u potrebu  mikroRNK ,  a posebno  miR-21,  i na  slične   element e za  dijagnoz u i za proizvodnju leka za  tretm a n  i / ili   prevencij u  fibroz e i / ili   bolesti koje su povezane sa  fibroz om .  Dodatno ,  ovaj  pronalazak   se odnosi na  antisense - oligo nukleotid e protiv meta  miR-21.  Ćelija koja ne sadrži  miR-21,  promotor ski  region  i mete  miR-21  i  nok aut - organi zam  s u takođe obuhvaćeni sa ovim pronalaskom .  Konačno ,  ovaj  pronalazak   je usmeren na  postupak   za  di j agno zu   fibroz e i / ili   bolesti koje su povezane sa  fibroz om i na  postupak   za pretragu farmaceutski  a k tiv nog   jedinjenj a za  tretm a n   fibroz e i / ili bolesti koje su povezane sa  fibroz om .  Ovaj  pronalazak   dodatno  se odnosi na   kompozicije   za upotrebu u  tretm a n u ,  ublažavanju i / ili   prevencij i   fibroz e .  U   nekim   izvedb ama ,  pomenute  kompozicije  modul iraju delovanje  mi RNK   tokom   tretm a n a ,  ublažavanj a  i / ili   prevencij e   fibroz e .  U   nekim   izvedb ama ,  pomenute k ompozicije  inhibi raju delovanje  miR-21  tokom   tretm a n a ,  ublažavanj a  i / ili   prevencij e   fibroz e .
Patent ZA-85755-B (ZA)
Title: Antitumor pharmaceutical compositions and methods for treating tumors employing(a,w-bis(dissubstitutedphosphino)hydrocarbon)digold(i),digold(iii),disilver(i)and dicopper(i)derivatives
Inventor: HILL DAVID TAYLOR
IPC: A61P35/00
Filed: 1985-01-31
Abstract: Pharmaceutical compositions and compounds for treating tumors by administering an effective tumor cell growth-inhibiting amount of a [ alpha ,  omega -bis (disubstituted phosphino)hydrocarbon] digold(I), digold(III), disilver(I) or dicopper(I) derivative to an animal afflicted by such tumor cells, are described.
Patent ZA-96316-B (ZA)
Title: Compositions containing unsaturated polyester resins and their use for the production of coatings
Inventor: MEIXNER JUERGEN
IPC: C08F283/01
Filed: 1996-01-16
Abstract: UV-curable mixts. (I) contain (A) 40-80 pts. wt. polyester resin component contg. at least one ethylenically unsatd. polyester resin (UP resin), (B) 20-60 pts. wt. copolymerisable monomer(s), (C) 0.1-10 pts. wt. photoinitiator(s) and opt. (D) conventional additives etc. for coating materials. The UP resins in (A) have acid nos. of 0-50 and OH nos. of 10-150, and are obtd. by reacting (a) 35-50 mole% of a carboxylic acid component contg. (a1) 5-35 mole% of the dicyclopentenyl ester of a 1,2-alkene-dicarboxylic acid, (a2) 50-95 mole% fumaric and/or maleic acid and (a3) 0-20 mole% other carboxylic acids and/or anhydrides, with (b) 50-65 mole% of an alcohol component contg. (b1) 75-100 mole% dihydric alcohol(s), (b2) 0-25 mole% monohydric alcohol(s) and (b3) 0-10 mole% at least trihydric alcohol(s).
Patent AT-409116-B (AT)
IPC: B65D88/58
Filed: 1998-07-14
Granted: 2002-05-27
Abstract: The transport system includes contains for receiving the bulk goods and a control unit is provided, and the containers can be swiveled in an open condition, so that the goods can flow downwards. The locking unit (4) and the adjusting unit (5) are designed with guide rollers, which are assigned control rails, located at the ends of the conveyor system. The control rails work in conjunction with the control rollers, so that the containers (2) are brought into their open position.
Patent AT-400643-B (AT)
Title: Franking apparatus with a franking machine
Inventor: SODERBERG JOHN H
IPC: H04L25/30
Filed: 1986-06-19
Granted: 1996-02-26
Abstract: A franking apparatus with a franking machine, having a keyboard 83, an indicator device 85 with an accounting device for controlling all the data accounting operations of the franking machine, a control device 75 for controlling the signal data flow initiated by the keyboard 83 and the signal data flow to the indicator device 85 in conjunction with the operating control in the accounting device, and a postage printing device for adjusting postage printing elements and for monitoring their mechanical functions, has a connecting device, by means of which the control device 75 can be connected to an external appliance, a sensing device for periodically sensing the connecting device for signals from the external appliance and a detector device which responds to a predetermined input signal of the connecting device emanating from the external appliance, with the result that the independent functioning of the control device 75 is cancelled and, instead, the connecting device, together with the signals emanating from the external appliance, takes over the control function, the connecting device embodying the external appliance in terms of communication with the accounting device and the postage printing device for data transfer. <IMAGE>
Patent AT-394938-B (AT)
IPC: A47C23/04
Filed: 1990-10-15
Granted: 1992-07-27
Abstract: PCT No. PCT/DE91/00665 Sec. 371 Date Feb. 8, 1993 Sec. 102(e) Date Feb. 8, 1993 PCT Filed Aug. 20, 1991 PCT Pub. No. WO92/03077 PCT Pub. Date Mar. 5, 1992.A box-spring core has a first group of first chains extending spacedly adjacent and parallel to one another and a second group of second chains extending adjacent and parallel to one another and transversely of the first chains. Each of the chains has an elongated flexible sheath formed with a plurality of longitudinally spaced, transversely extending, and through-going slits that are each transversely aligned with the slits of adjacent sheaths, a transverse seam adjacent each slit and internally subdividing the respective sheath into a respective succession of longitudinally spaced pockets, and respective springs in the respective pockets each compressible in a transverse direction parallel to the slits. The springs have opposite ends lying generally in respective parallel planes. Each slit has a predetermined length measured perpendicularly between the planes and the combined lengths of a pair of interfitting slits are generally equal to the predetermined height.