baber/WOPTO huggingface dataset:
Patent MX-166691-B (MX)
Title: Adhesivo para la piel, sensible a la presion, reforzado con un macromero
Inventor: KRAMPE STEPHEN E
IPC: A61L15/16
Filed: 1986-05-14
Abstract: La presente invención se refiere a un material lamina adhesivo adecuado para ser aplicado a la piel, caracterizado porque consiste de un miembro de refuerezo conformable y de una composición adhesiva para la piel que está aplicada a cuando menos una porción de una superficie del miembro de refuerezo conformable; la composición adhesiva para la piel comprende un copolímero de monómeros A, macrómeros C y opcionalmente monómeros B copolimerizados, en donde: A es un éster monomérico de acrilato o metacrilato de un alcohol no-terciario que tiene de 1 a 14 átomos de carbono, siendo el número promedio de átomos de carbono de 4 a 12; el monómero B, cuando se usa, es cuando menos un compuesto etilénicamente insaturado copolimerizable con el monómero A; la cantidad del monómero B está comprendida entre aproximadametne 0 a aproximadamente 25 por ciento del peso total de los monómeros A y B; y C es un macrómero que tiene la fórmula general X-(Y)n-Z, en donde X es un grupo vinilo copolimerizable con los monómeros A y B.
Patent NO-132964-B (NO)
Inventor: ETTENREICH L
IPC: C21D1/18
Filed: 1971-04-29
Abstract: Kontinuerlig fremgangsmåte ved varmebehandling av stangformige bygningsstål med lavt carboninnhold.
Patent NO-144288-B (NO)
Title: Fremgangsmaate ved diffusjonssammenbinding av mot hverandre lagte flater av to elementer av titan og/eller titanlegering
Inventor: WOODWARD JAMES R
IPC: B23K/
Filed: 1973-10-01
Abstract: Fremgangsmåte ved diffusjonssammenbinding av mot hverandre lagte flater av to elementer av titan og/eller titanlegering.
Patent NO-134004-B (NO)
Inventor: NIGOL OLAF
IPC: H01B1/14
Filed: 1973-10-29
Abstract: Halvledende glasursammensetninger.
Patent NO-143155-B (NO)
Title: Analogifremgangsmaate til fremstilling av terapeutisk aktive benzomorfaner.
Inventor: MONTZKA THOMAS ALFRED
IPC: C07C49/755
Filed: 1975-04-17
Abstract: Analogifremgangsmåte -til fremstilling av terapeutisk aktive, benzomorfaner.
Patent NO-152499-B (NO)
Title: Pneumatisk transportroer
Inventor: HANROT JEAN-PASCAL
IPC: B65G53/18
Filed: 1978-05-16
Abstract: PNEUMATISK TRANSPORTØR.
Patent NO-154012-B (NO)
Inventor: TRUMMLITZ GUENTER
IPC: C07D275/06
Filed: 1981-04-15
Abstract: Compounds of the formula   <IMAGE>   wherein R1 is hydrogen or hydroxyl, and non-toxic, pharmacologically acceptable salts thereof formed with inorganic or organic bases. The compounds as well as their salts are useful as sweetening agents.
Patent NO-174047-B (NO)
Inventor: VENTURELLO CARLO
IPC: C07D241/24
Filed: 1986-05-16
Abstract: A process for the preparation of 2-carboxypyrazine 4-oxides having the formula (I)wherein R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub>, which may be the same or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, by oxidation of the corresponding 2-carboxypyrazines. The 2-carboxypyrazines are reacted under stirring with an aqueous solution of H<sub>2</sub>O<sub>2</sub>, at a pH ranging between 0.5 and 5, in the presence of a catalyst selected from the group consisting of tungstic acid, a homopolytungstic acid, a heteropolytungstic acid, molybdic acid, a homopolymolybdic acid, a heteropolymolybdic acid, and an alkali metal salt thereof.
Patent NO-171893-B (NO)
Inventor: CROUZET PIERRE
IPC: C08F4/64
Filed: 1987-01-19
Abstract: The invention relates to processes and apparatus for the elutriation of particles of a Ziegler-Natta type alpha-olefin polymerisation catalyst, based on transition metal compound(s) and preferably also comprising magnesium compounds, by means of an elutriation liquid which is a non-polar liquid, for example a hydrocarbon chemically inert in relation to the catalyst. A preferred process comprises the following stages:- preparation of a homogeneous suspension of the catalyst in the elutriation liquid. and- elutriation of the catalyst by means of the suspension and the elutriation liquid in one or two elutriation columns (F1),(F2), separating the large and fine catalyst particles respectively.The apparatus comprises a tank (M2) for the preparation of the catalyst suspension and the elutriation column or columns (F1)(F2).The invention also relates to elutriation of Ziegler-Natta catalyst particles using a non-polar elutriation liquid and wherein a special polar aprotic additive is employed, for example an organo-metallic compound.
Patent NO-172161-B (NO)
Inventor: LEHMANN RUDOLF
IPC: A01N47/12
Filed: 1988-06-08
Abstract: Antimicrobial mixtures containing quaternary ammonium compounds and iodopropynyloxy ethanol carbamate compounds in a ratio by weight of 0.3:1 to 9:1.
Patent NO-171061-B (NO)
Inventor: PADOVAN MARIO
IPC: B01J21/06
Filed: 1989-06-22
Abstract: The invention concerns a catalytic process for the manufacture of oximes by ammoximation of the corresponding carbonyl compounds, characterized in that the catalyst is a solid composition consisting of silicon, titanium and oxygen, chemically combined with each other, and in that the titanium amount, expressed as TiO2, ranges from 1 to 95% by weight, the XR diffractogram of said composition being a smooth-trend line (halo), typical of the amorphous solids.
Patent SE-331327-B (SE)
Inventor: TSOU I
IPC: C08G63/123
Filed: 1965-04-29
Abstract: <PICT:1069661/C6-C7/1> Coating material is anodically deposited from an aqueous bath, having dispersed therein a synthetic resin which is produced by reacting an organic polymer having a plurality of hydroxyl groups with trimellitic anhydride, by immersing a first electrode in the bath while it is in electrical connection with a second electrode which is apart from the first, and passing a direct current through the bath.  In the drawing a tank 11 contains the bath 13 and acts as the negative electrode; the article to be coated 19 is suspended from conveyer 35 by hangers 21 and 23 insulated at 25 and 27; the article 19 is in electrical connection over sliding members 29 and 31 with bus-bar 33 and serves as the positive electrode.ALSO:An organic polymer having a plurality of hydroxyl groups is reacted with trimellitie anhydride, i.e. the 1,2-anhydride of 1,2,4-benzene tricarboxylic acid.  The polymer may be a copolymer of styrene and allyl alcohol, may have a molecular weight of above 1000 and have 2-10 hydroxyl groups/molecule.  The reaction may be carried out at over 330 DEG  F. and sufficient anhydride used, e.g. at least 2 mol./ mol. resin, to provide at least one carboxyl group/600 units of molecular weight in the polymer.  The reaction may also be carried out in xylene in the presence of soya fatty acids, tall oil fatty acids or linseed fatty acids, or the polymer may be reacted first with these acids and then with the anhydride: the reacted polymer may be blended with one of the foregoing fatty acids. The reacted polymer may be dispersed in water containing ammonia or triisopropanolamine, or may be made into a paint by mixing with methyl ethyl ketone pine oil, polyethylene glycol red iron oxide, basic lead chromate coated silicate and/or china clay.
Patent SE-336658-B (SE)
Inventor: BAEDER E
IPC: B27K3/15
Filed: 1968-06-19
Abstract: 1,188,466. Wood plastic combinations. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. 5 June, 1968 [19 June, 1967], No. 26692/68. Heading C3P. [Also in Division D1] Synthetic resin impregnated wood is prepared by impregnating wood with an organic liquid which can be polymerized or hardened and optionally contains dissolved polymers, plasticizers, accelerators, initiators and hardeners, under a reduced pressure followed by hardening wherein the dried wood is dipped into a bath containing the impregnating solution, a reduced pressure is created at least once, and the wood is removed from the bath after restoration of normal pressure, and the impregnated liquid is hardened. The reduced pressure may be generated by working in an evacuable vessel, or by heating the wood prior to immersion in the bath, to a temperature higher than the bath temperature and then dipping the wood into the bath. In the examples various woods are impregnated with the following solutions: (1) methyl methacrylate lauroyl and diacetyl peroxide, optionally mixed with a prepolymer of methyl methacrylate; in another solution the lauroyl peroxide is dissolved in dioctyl adipate, and the diacetyl peroxide is dissolved in dimethyl phthalate, (2) a polyester based resin (65% of an unsaturated solid resin and 35% of styrene) methyl methacrylate, lauroyl and diacetyl peroxide, (3) styrene, a prepolymer of styrene, lauroyl and diacetyl peroxide, (4) an epoxide resin and a hardener, (5) a prepolymer of methyl methacrylate, methyl methacrylate, benzoyl peroxide in dibutyl phthalate, and (6) styrene, a prepolymer of styrene, lauroyl and acetyl peroxide. Compressive tests were carried out on the above impregnated woods.
Patent RS-51054-B (RS)
Inventor: HEANEY KATHLEEN
IPC: A01N51/00
Filed: 2003-10-17
Abstract: Upotreba antagonista neuronskog natrijumovog kanala formule (la)ili njegovog sereoizomera i amitraza u proizvodnji leka za prevenciju, ublažavanje ili kontrolu infekcije ektoparazitima ili najezde ektoparazita kod toplokrvnih životinja. Prijava sadrži još 8 patentnih zahteva.
Patent ZA-877072-B (ZA)
Title: Fungicidal compositions
IPC: A01N43/84
Filed: 1987-09-21
Abstract: Fungicidal compositions comprise at least one morpholine-type fungicide and at least one imidazole derivative of general formula (I):- <CHEM> or a salt thereof; where R represents an optionally substituted phenyl group, R<1> represents an optionally substituted alkyl, cycloalkyl, alkenyl, aryl or aralkyl group, R<2> represents an optionally substituted alkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, aryl or aralkyl group, and X represents an oxygen or sulphur atom or a group -NR<3>-, where R<3> represents a hydrogen atom or an optionally subtituted alkyl group or R<2> and R<3> together with the interjacent nitrogen atom represent a 5- or 6- member saturated or unsaturated heterocyclic ring optionally containing one or two further heteroatoms. The compositions are particularly useful in combating wheat leaf spot and powdery mildews.
Patent ZA-882415-B (ZA)
Title: Binder-free granules with delayed release of the active compound
IPC: A61K9/16
Filed: 1988-04-07
Abstract: A sustained release granulate without binding agents for oral and parenteral administration of active compound, consisting of a pharmaceutical active compound or its granulate and a coating of 1 to 20% by weight of poly-D(-)-3-hydroxybutyric acid relative to the total weight, and a process for its production.
Patent ZA-884513-B (ZA)
Title: Drug emulsion
Inventor: DAVIS STEWART STANLEY
IPC: A61K9/127
Filed: 1988-06-23
Abstract: A process for preparing a drug-containing emulsion, comprising the steps of (a) optionally dissolving the drug in a suitable co-solvent, (b) mixing the drug or a solution thereof in the co-solvent with an aqueous preparation of a surfactant, (c) removing at least most of any co-solvent which is present, (d) mixing the product of step (c) with oil, and (e) forming an oil-in-water emulsion from the product of step (d). The drug is located in the surfactant layer of the resulting emulsion. The drug is preferably a polyene antifungal compound such as amphotericin B. The emsulsions are stable and reduce the toxicity of the drug.
Patent ZA-891723-B (ZA)
Title: Regeneration of graminaceous plants of the subfamily pooideae from protoplasts
Inventor: HORN MICHAEL E
IPC: C12N5/04
Filed: 1989-03-07
Abstract: The present invention relates to cell cultures of graminaceous plants which can be regenerated to intact plants, in particular to intact fertile plants. This invention furthermore describes how these regeneration processes are carried out and a novel method for low-temperature preservation of embryogenic cell cultures. <IMAGE>
Patent ZA-894508-B (ZA)
Title: Pharmaceutical compounds
Inventor: WING KEITH DUMONT
IPC: A61K31/496
Filed: 1989-06-14
Abstract: A compound for pharmaceutical use has a nucleus of the formula    G1-G2---N- @-G2-G1 where E is an organic or organometallic radical having at least three atoms other than hydrogen and is attached to the nitrogen shown in the formula by a carbon-to-nitrogen single bond; where one G1 is C, N, O or S, and both G2's and the other G1 are carbon; or one G2 is S or P, and both G1's and the other G2 are carbon; where the bond shown as --- is a single or double bond; or a biologically acceptable salt thereof. Preferably, the compound is used for combating helminths in animals, including man.
Patent ZA-917767-B (ZA)
Title: A nutritional composition and a process for its production
Inventor: MASSON GERARD
IPC: A23L35/00
Filed: 1991-09-27
Abstract: In order to prepare a sterilised nutritive composition which is stable over a long period, kappa-carragheenan and a xanthan gum are added thereto.
Patent ZA-927593-B (ZA)
Title: Silicates
Inventor: MCKEOWN IAN PATRICK
IPC: C01B33/193
Filed: 1992-10-02
Abstract: Amorphous silicas suitable for use as abrasives in transparent toothpastes can be prepared by a precipitation route. These silicas are distinguished by having a BET surface area of 100 to 450 m<2>/g, a weight mean particle size of 5 to 15 microns, a plastics abrasion value of 16 to 26, a mean pore diameter from 2 to 12 nm, a transmission of at least 70% in the refractive index range from 1.430 to 1.443 and an oil absorption in the range from about 70 to about 130 cm<3>/g.
Patent ZA-932538-B (ZA)
Title: Topical Composition
Inventor: DAVIS ADRIAN FRANCIS
IPC: A61K9/06
Filed: 1993-04-08
Abstract: PCT No. PCT/GB93/00692 Sec. 371 Date Oct. 7, 1994 Sec. 102(e) Date Oct. 7, 1994 PCT Filed Apr. 2, 1993 PCT Pub. No. WO93/20799 PCT Pub. Date Oct. 28, 1993Two-component pharmaceutical compositions for topical application to the human or animal body comprising two miscible liquid phases having different lipophilicities and a drug dissolved in at least one liquid phase, each phase comprising at least one topically acceptable non-aqueous and non-volatile solvent.
Patent ZA-933644-B (ZA)
Title: Heterocyclic derivatives
Inventor: MALLION KEITH BLAKENEY
IPC: A61P3/06
Filed: 1993-05-25
Abstract: PCT No. PCT/GB93/01165 Sec. 371 Date Jun. 9, 1994 Sec. 102(e) Date Jun. 9, 1994 PCT Filed Jun. 2, 1993 PCT Pub. No. WO93/24486 PCT Pub. Date Dec. 9, 1993Quinuclidine derivatives of formula I, and their pharmaceutically acceptable salts,   <IMAGE>   in which R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 are joined together so that CR1-CR2 is a double bond; Ar1 is a phenylene moiety; Ar2 is a 6-membered heteroaryl moiety containing one or two nitrogen atoms; and wherein one or both of Ar1 and Ar2 may optionally bear one or more substituents such as halogeno, hydroxy, amino, nitro, cyano, carboxy, carbamoyl, alkyl, alkenyl, alkynyl, alkoxy, alkylamino, di-alkylamino, N-alkylcarbamoyl, di-N,N-alkylcarbamoyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl, alkanoylamino, alkylenedioxy, alkanoyl and oxime derivatives thereof and O-alkyl ethers of said oxime derivatives; inhibit squalene synthase and are therefore useful in treating treating diseases and medical conditions where inhibition of squalene synthase is desirable, for example in treating hypercholesterolemia and atherosclerosis. Processes for the preparation of these derivatives and pharmaceutical compositions containing them are also referred to as well as their use in medicine.
Patent ZA-934632-B (ZA)
Title: Hydroxylated milk glycerides
Inventor: FRIEDMAN AMNON
IPC: C11C3/00
Filed: 1993-06-28
Abstract: Hydroxylated milk glycerides having low levels of ethylenic unsaturation are disclosed. The hydroxylated milk glycerides can have enhanced resistance to rancidification and as such, are suitable for use in personal care compositions e.g., lotions, skin creams, lipsticks, eye shadow, and makeup. Personal care compositions comprising the hydroxylated milk glycerides can have enhanced properties as compared to personal care compositions which do not comprise the hydroxylated milk glycerides or alternatively comprise milk fat.
Patent ZA-935924-B (ZA)
Title: Process for the preparation of polyolefins
Inventor: WINTER ANDREAS
IPC: C08F4/602
Filed: 1993-08-13
Abstract: A compound of formula (1) in either pure meso form or as a 1:99 meso:racemic mixture is claimed. In (1), M<1> = a Group IVb, Vb or VIIb metal; R<1>, R<2> = H, 1-10C alkyl, 1-10C alkoxy, 5-10C aryl, 6-10C aryloxy, 2-10C alkenyl, 7-40C arylalkyl or alkylaryl, 8-40C aralkenyl or halogen; R<4>, R<5> = H, halogen, 1-10C alkyl, optionally halogenated , 6-10C aryl, optionally halogenated, -NR<10>2, -SR<10>, -OSR<10>3, -SiR<10>3 or -PR<10>2; R<3>, R<6> = halogen, 1-10C alkyl, optionally halogenated , 6-10C aryl, optionally halogenated, -NR<1>02, -SR<10>, -OSR<10>3, -SiR<10>3 or -PR<10>2 where two or more of R<3>-R<6> may form a ring system; R<10> = halogen, 1-10C alkyl or 6-10C aryl; R<7> = -M<2)<R<11>)(R<12>)-, -M<2)<R<11>)(R<12>)-M<2)<R<11>)(R<12>)-, , -M<2)<CR<13>2)-, -O-M<2)<R<11>)(R<12>)-O-, -C(R<11>)(R<12>)-, -O-M<2)<R<11>)(R<12>)-, =BR<11>, =AlR<11>, -Ge-, Sn, O, S, =SO, =SO2, =NR<11>, =CO, =PR<11> or P(OR)<1>; R<11>, R<12>, R<13> = H, halogen, 1-10C alkyl, 1-10C fluoroalkyl, 6-10C aryl, 6-10C fluoroaryl, 1-10C alkoxy, 2-10C alkenyl, 7-40C arylalkyl, 8-40C arylalkenyl, 7-40C alkylaryl where R<11> and R<12> or R<11> and R<13> together form a ring system. M<2> = silicon, germanium or tin; m, n = 0, 1 or 2 m+n = 0, 1 or 2; and where meso-Dimethylsilylbil (1-(2-methyl-4-ethylindenyl)) zirconiumdichloride, meso-Dimethylsilylbil (1-(2-methyl-4-isopropylindenyl)) zirconium dichloride, meso-Dimethylsilylbil (1-(2-methyl-4-tert-butylindenyl)) zirconium dichloride, meso/meso/rac(1:1:2)-methylphenylsilylbis(1 -(2-methyl-4-isopropylindenyl)) zirconium dichloride, meso/rac(5:1)-dimethylsilylbis(1 -(2-ethyl-4-methylindenyl)) zirconium dichloride, meso/rac(1:1)-dimethylsilylbis(1 -(2,4-dimethylindenyl)) zirconium dichloride, meso/rac(1:3)-dimethylsilylbis(1 -(2-methyl-4,6-disopropylindenyl)) zirconium dichloride, meso/rac(1:2)-methylphenylsilylbis(1-(2-methyl-4,6-diisopropylindenyl)) zirconium dichloride, meso/rac-1,2-butandiylbis(1-(2-methy-4,6-diisopropylindenyl)) zirconium dichloride, meso/rac(1:2)-dimethylsilylbis(1 -(2-,4,6-trimethylindenyl)) zirconium dichloride, meso/rac(1:2)-1,2-ethandiylbis(1 -(2-methyl-4,6-diisopropylindenyl)) zirconium dichloride, meso/rac(1:1)-dimethylsilylbis(2 -methyl- alpha -acenaphthindenyl) zirconium dichloride, meso/rac-methylphenylsilylbis(1 -(2-methyl-4,5-benzoindenyl)) zirconium dichloride, meso/rac-methylphenylsilylbis(2 -methyl- alpha -acenaphthindenyl)) zirconium dichloride, rac-1,2-butandiylbis(1- (2-methyl-4,5-benzoindenyl)) zirconium dichloride, meso/rac (1:3)-dimethylsilylbis(1- (2-methyl-4,5-benzoindenyl)) zirconium dichloride, meso/rac (1:1)-dimethylsilylbis(1 -(2-methyl-4-phenylindenyl)) zirconium dichloride meso/rac (1:1)-dimethylsilylbis(1- (2-ethyl-4-phenylindenyl)) zirconium dichloride, meso/rac (1:1)-dimethylsilylbis(1- (2-methyl-4-(1-naphthyl)indenyl)) zirconium dichloride, meso/rac (1:1)-dimethylsilylbis(1- (2-methyl-4-(2-naphthyl)indenyl)) zirconium dichloride, and meso/rac(1:1)-ethandiylbis(1- (2-methyl-4-phenylindenyl)) zirconium dichloride are excluded.
Patent ZA-962844-B (ZA)
Title: Light projection apparatus
Inventor: ANDERSON NIGEL LIVARI
IPC: B25H7/04
Filed: 1996-04-10
Abstract: PCT No. PCT/GB96/00844 Sec. 371 Date Dec. 29, 1997 Sec. 102(e) Date Dec. 29, 1997 PCT Filed Apr. 4, 1996 PCT Pub. No. WO96/31322 PCT Pub. Date Oct. 10, 1996A light projection apparatus for projecting an illuminated line onto a surface which comprises a light source for emitting a light beam and a light beam deflection lens which is adapted to receive the emitted light beam and project a work light beam which will be visible as a straight line on the surface, the light deflection lens is configured so that the visible line on the surface is of generally equal illumination along its entire length. The light beam deflection lens preferably comprises an optical lens which is adapted to refract and reflect the emitted light beam.
Patent ZA-966274-B (ZA)
Title: Novel crystals
Inventor: MITTI PEER
IPC: C12P21/02
Filed: 1996-07-24
Abstract: The invention concerns TGF-beta in a crystalline form which shows no adsorption or less adsorption to the walls of vials than the soluted TGF-beta and which is more stable towards oxidative agents than the soluted form. TGF-beta crystals of the invention can be used for structure determination and for drug design and for the production of a slow release pharmaceutical preparation.
Patent ZA-987418-B (ZA)
Title: Fluid, filter arrangement including valve arrangement, fluid level indicator, and methods thereof.
Inventor: CONNELLY JOHN F
IPC: F02M37/34
Filed: 1998-08-18
Abstract: A filter arrangement for filtering fluid comprises a housing and a valve arrangement. The housing includes an inlet, an outlet, and a draining aperture. The valve arrangement is constructed and arranged to move between a closed position and an open position without the use of threads. The closed position prevents evacuation of fluid from the housing through the draining aperture, and the open position permits evacuation of fluid from the housing through the draining aperture. One valve arrangement may include a pair of ports and a pair of air vents. The valve is actuated by aligning the ports and air vents on a sliding sealing surface. An indicator arrangement including a float and a clear window is provided to give the user a visual indication of the level of water within the filter. Methods for using the constructions herein are provided.
Patent GB-2373448-B (GB)
Title: Dental apparatus for recording the interdental relationship of anterior teeth
Inventor: SEGAL ALAN JULIAN
IPC: A61C9/00
Filed: 2000-11-24
Granted: 2004-05-19
Abstract: Dental apparatus for recording the interdental relationship of anterior teeth has an open frame and a handle. A bite tray ( 9 ) is secured within the frame so that impression material applied to the bite tray can be readily manipulated between a patient's anterior teeth. The frame may be formed from upper and lower pivotally interconnected arcuate parts ( 2, 5 ) and the bite tray ( 9 ) has an arcuate segmental body of flexible perforated supporting material with a stiffened strip ( 10 ) around its curved periphery. This strip ( 10 ) is clamped between confronting faces ( 15, 16 ) of the parts ( 2, 5 ) and is located in position by engagement of pins ( 8 ) on the lower part ( 2 ) with holes ( 11 ) in the strip ( 10 ).
Patent GB-2415994-B (GB)
Title: Latch arrangement
Inventor: CHEVALIER JOHN PHILLIP
IPC: E05B65/12
Filed: 2004-07-06
Granted: 2006-07-19
Abstract: An automative door latch has, in one invention, a child-safety locking switch ( 102 ) using an overcentre spring ( 110 ), for exerting extra spring bias on a lock toggle lever ( 610 ) operating the interior door lock. In another invention, a mechanical cooperation between the two lock toggle levers ( 516 ) operating interior and exterior door locking ensures that manual operation of either handle, when unlocked, to cause the corresponding lever ( 516 ) to open the door or other closure, causes the corresponding pawl release assembly ( 514, 510 ) to move the other pawl release assembly ( 514, 510 ) to its unlocked, pawl-engaging position, if that other pawl release assembly had been at its locked, pawl non-engaging position. In a third invention, a motor drives the latch bolt ( 2 ) for closing the door, through two ( 907, 908 ) segment gears which mesh for only part of the turning movement of a rotary driving and indexing mechanism ( 906 ) which also operates door opening and locking. In a fourth invention, rotary drive sequence control for a rotary driving and indexing mechanism ( 906 ) is provided by a cam guide ( 930 ) and cam frame ( 950 ), the guide having endwalls and a central stop, the cam guide being shaped in the region of the end walls to guide the cam member in a unique direction through a unique loop relative to the cam guide, such that when the cam member is released from the central stop it is moveable to either end wall and then only to the central stop and not directly to the opposite end wall.