baber/WOPTO huggingface dataset:
Patent GB-1212025-A (GB)
Title: Electrophotographic developer
Inventor: GARRETT WALTER LLOYD
IPC: G03G9/13
Filed: 1967-11-03
Abstract: 1,212,025. Liquid electro-photographic developers. DOW CHEMICAL CO. Nov.3, 1967 [Nov.7, 1966 (2)], No.50145/67. Heading G2H. [Also in Division C3] A liquid electro-photographic developer comprises an anhydrous, inert, organic carrier liquid having dispersed therein a cross-linkable resin which contains hydroxyl groups and a catalyst for curing said resin on heating in the absence of solvent wherein the developer has an electrical conductivity at ambient temperatures of 0À5 x 10<SP>-11</SP> to 1À0 x 10<SP>-9</SP> reciprocal ohm centimetres specified resins are silicone and epoxy resins e.g. a phenyl alkyl siloxane resin. Specified catalysts are alkoxy and dialkoxy aluminium salts of fatty acids e.g. octanoic acid and compounds of the formula:- wherein R<SP>1</SP> is a fatty acid radical of 6-12c, n is 2 or 3, m is 1, 2 or 3 and R is alkyl of 1-4C. Specified carrier liquids are isoparaffinic hydrocarbons, chlorofluorocarbons, aliphatic naphthas, odorless mineral spirits and aromatic hydrocarbons. The developer may contain pigments e.g. black and red iron oxide, ultramarine blue, lead phthalocyanine, or copper phthalocyanine and surfactants e.g. halogenated diaryl oxide sulphonates; sodium ligno sulphonates alkyl naphthalene sulphonates and alkali metal salts of sulphonated oils.
Patent GB-1098929-A (GB)
Title: Novel cyclotrisiloxanes and a process for their preparation
IPC: C08G77/04
Filed: 1965-11-25
Abstract: Cyclotrisiloxanes of the formula <FORM:1098929/C3/1> where R is a monovalent organic radical which is different from the radicals attached to the other two silicon atoms and X is hydrogen or fluorine, may be obtained by reacting a compound of the formula YR12Si-O-SiR12Y where R1 is a tolyl or substituted tolyl radical, with a compound of the formula R2SiY2 in the presence of an acid acceptor, where R is a monovalent organic substituent different from R1 including a different tolyl radical and Y is a hydroxyl radical in one reactant and a chlorine atom in the other. The reactants are preferably mixed in a stoichiometric ratio of 1:1 and the reaction may be effected in a solvent at a temperature between about 10 DEG C. and the reflux temperature of the system. Suitable acid acceptors are tertiary amides such as pyridine, picoline, 1,4-diazabicyclo-(2,2,2)-octane and dialkylanilines. In examples, the radical R is a methyl, phenyl or tolyl radical. Sym-dichlorotetratolyl disiloxane starting materials may be obtained by partial hydrolysis of the corresponding ditolyl dichlorosilane and they may be hydrolysed to give sym-tetratolyldisiloxanediol starting materials.  Di-tolylsilane diol starting materials may be prepared by hydrolysis of the corresponding di-tolyl-dichlorosilane.  The products may be employed in the formation of organopolysiloxane elastomers and resins.
Patent GB-1241046-A (GB)
Title: Improvements in gas burners
IPC: F23D14/04
Filed: 1968-10-23
Abstract: 1,241,046. Gas burners. GENERAL ELECTRIC CO. 23 Oct., 1968 [30 Oct., 1967], No. 50250/68. Headings F4F and F4T. A gas burner assembly for heating a stream of air flowing past said assembly, comprises a mixing chamber 33 which receives the gas and primary combustion air, a Venturi tube 34, a flame spreader 30 having a lateral opening 39 and a projection 40, and an igniter 55 and a flame sensor 56 located outside opening 39 in the path of the outflowing gas and primary air mixture. Downstream of the Venturi tube 34 is situated a laminar flow region 35 whose function is to spread the gas/air mixture before it passes through exit port 38, downstream of which ignition occurs. The burner is constructed in two sections-see Fig. 3-which are secured together by spot-welding or crimping together the flanges 31 and 32. Gas is admitted to mixing chamber 33 through a valve 61, and the amount of primary air entering the mixing chamber through opening 42 is controlled by a ring-like shutter 44, rotated by thumb-screw 46. Secondary air flowing over projection 40 creates a low-pressure area outside and adjacent to opening 39, thereby diverting outwards therethrough a stream of the gas/air mixture. This mixture is lit by the igniter 55 and in turn ignites the main portion of the mixture, thereby providing a flame to heat the secondary air.
Patent GB-1165597-A (GB)
Title: Synthesis of 1,12-Dodecanedioic Acids
IPC: C07C51/31
Filed: 1967-11-06
Abstract: 1,165,597. Synthesis of 1,12 dodecanedioic acid. E. I. DU PONT DE NEMOURS & CO. 6 Nov., 1967 [12 Dec., 1966], No. 50426/67. Heading C2C. A process is described for the simultaneous removal of by-products and catalyst recovery from the recycle liquid stream remaining after the nitric acid oxidation of cyclododecanol/ cyclododecanone in the presence of a coppervanadium catalyst and subsequent removal of the 1,12 dodecanedioic acid product by crystallization. The recycle liquid comprises HNO 3 , water, dibasic acids containing from 4 to 12 carbon atoms, monobasic acids and copper-vanadium catalyst, and is maintained at 40-110 C. The concentrations of the components of the recycle liquid are adjusted to a level where the weights of the various components, on a total liquid basis, are inorganic salt 0À1-10%, dibasic acids 5-80%, and HNO 3  less than 25% with the proviso that the weight of HNO 3  is less than 55% of the total HNO 3  and water present. Under the above conditions two liquid phases, oil and water form and are separated. The aqueous phase can be recycled for use in the nitric acid oxidation reaction. Adjustment of the concentrations of the various components of the recycle liquid may be by evaporation, addition of water, addition of inorganic salt e.g. the nitrates and sulphates of Cu<SP>+ +</SP>, Na<SP>+</SP>, Mg<SP>+</SP>, Ca<SP>++</SP> or addition of externally recycled oil. Examples illustrate both batchwise and continuous operation of the process.
Patent GB-1329777-A (GB)
Title: Printing machine having a device for tripping the cylinders
IPC: B41L35/16
Filed: 1971-11-01
Abstract: 1329777 Rotary printing presses ADAMOVSKE STROJIRNY NARODNI PODNIK 1 Nov 1971 [9 Dec 1970] 50646/71 Heading B6C According to the invention there is provided an offset printing machine of the kind wherein paper sheets are printed by means of an impression cylinder, a forme cylinder and an offset cylinder which is brought into and out of printing contact with the other cylinders by rotation of an eccentric shaft on which the offset cylinder is mounted. The machine incorporates a tripping device operable automatically to bring the offset cylinder into and out of engagement with the other cylinders as paper sheets are fed through the machine, which tripping device comprises a cam 1 fixed to the shaft 2 of the impression cylinder 3, a lifting arm 9 having at one end a follower 4 which bears on the cam and at the other end a pin 10, a first link 12 rotatably mounted on the eccentric shaft 15 and having a tooth 11 engageable with the pin 10, a stop element 16 rigidly attached to the eccentric shaft 15, a pin 18 and slot 19 engagement between the first link 12 and a first arm of the stop element 16, a second arm of the stop element being engageable with a sheet thickness adjuster 20 mounted in a bus 9 on a side wall 8 of the machine and adjustable to control the amount of rotation of the eccentric shaft it accommodates paper of different thicknesses.
Patent GB-1181824-A (GB)
Title: Cine Film Editing Apparatus
Inventor: GOTO TADASHI
IPC: G03B1/50
Filed: 1967-02-03
Abstract: 1,181,824. Cine editing apparatus; gates. T. GOTO. Feb.3, 1967 [Feb.4, 1966; Feb.25, 1966], No.50756/69. Divided out of 1,181,823. Heading G2E. A cine film editing machine for use with film of different format has a gate unit with interchangeable framing apertures; the unit may comprise a transversely movable slide or an apertured hollow body surrounding the optical compensation prism.
Patent GB-1348294-A (GB)
Title: Electro-optical devices with acousto-optic effect suppression
IPC: G02F1/03
Filed: 1971-11-02
Abstract: 1348294 Modulating light HUGHES AIRCRAFTCO 2 Nov 1971 [23 Nov 1970] 50884/71 Heading H4F  A piezo-electric crystal 10, provided with electrodes 12, 12 and exhibiting a linear transverse electro-optic effect, has mounted on each surface lateral of the optical path a body 14 of acoustic energy absorbing material with the interposition of an acoustic coupling layer 16, thereby reducing the magnitude of the birefringence contributer by the piezo-optic effect, which is otherwise particularly marked at acoustic resonance frequencies of the crystal 10, Fig. 3 (not shown). If crystal 10 is of GaAs or CdTe, e.g. for modulating infra-red light, bodies 14 may be of lead, lead glass or titanium, while brass bodies 14 are suitable for a KDP or KD*P crystal. Layers 16 may be of silicone grease or indium, or of shellac which also bonds the bodies 14 to the crystal 10. Other suitable materials for crystal 10 are ADP, CuCl, ZnS, ZnTe, LiNbO 3 , LiIO 3 , LiTaO 3 , BaTiO 3  and quartz. The structure 10-16 is mounted in a cylindrical glass fibre body 22a, 22b, having terminal optical apertures.
Patent GB-1219293-A (GB)
Title: Improvements in and relating to infant carriers
Inventor: AUKERMAN AGNES LUCILLE
IPC: A47D13/02
Filed: 1968-10-30
Abstract: 1,219,293. Shoulder-supported infant carrier. A. L. AUKERMAN. 30 Oct., 1968 [23 Feb., 1968], No. 51341/68. Heading A3V. A shoulder supported infant carrier 10 suitable for infants of various sizes comprises a first large open-topped pouch 12, Fig. 5, with leg and arm openings 40, 42 adapted to be supported on the shoulders of a wearer by shoulder straps 16, Fig. 6, and a second smaller open-topped pouch 14 supported inside the first pouch, with leg openings 62, each pouch having releasable fastenings such as sliding clasp fasteners 66, 68 to facilitate the insertion or removal of the infant. The outer pouch which can take an infant of toddler size is composed of a front 22 and rear 34 panel each sev/n to a belt 18 and sewn together at the side margins, the upper margin of the back panel being narrowed by a series of tucks. The shoulder straps 16 are reinforced in their upper parts by crossed straps (28), Fig. 2 (not shown), each having a buckle 30, 48 which has a pad 32 beneath it. The lower part of the strap, which is adjustable, is attached to the pouch at the point 40. The belt 18 has a row of mating snap fastener elements 50 which allow for different waist measurements. On the back of front panel 22 is attached the inner pouch 14 to carry smaller children, the size of which is adjustable by two or more horizontal rows of press studs 52 on the front panel engageable with a mating row of studs on the inner panel and by releasable tucks 60 in the upper margin 58. A detachable bib 20 made of soft absorbent fabric is also attached by snap fasteners 70 to the front panel. The carrier may alternatively be worn on the chest in a car.
Patent GB-1325147-A (GB)
Title: Water-soluble monoazo dyestuffs of the amino-azo benzene series
IPC: C09B62/53
Filed: 1971-11-04
Abstract: 1325147 Monoazo dyes BAYER AG 4 Nov 1971 [5 Nov 1970] 51361/71 Heading C4P The invention comprises monoazo dyes of formula where X is a straight or branched chain alkylene radical having 2-4 carbon atoms; R 1  is H or optionally substituted C 1 -C 4  alkyl; R 2  is H 2 Cl, or optionally substituted alkyl or acylamino; R 3  is H or optionally substituted alkyl ; and R 4  is optionally substituted alkyl, the rings A and B optionally containing further non-ionic substituents. The dyes may be prepared by diazotization and coupling, or by esterifying the aliphatic hydroxyl group in a monoazo compound of formula by means of sulphuric acid. The dyes give orange and red shades on synthetic fibre materials, particularly polyamide fibres.
Patent GB-1402732-A (GB)
Title: Pencil having a lead made of a new composition
IPC: C08L63/00
Filed: 1972-11-10
Abstract: 1402732 Epoxy resin composition TEIJIN Ltd 10 Nov 1972 [13 Nov 1971] 52068/72 Headings C3B and C3P [Also in Division B6] A composition, useful as a pencil lead, comprises a finely divided colouring agent dispersed in an uncured solid epoxy resin, prepared from bisphenol A and epichlorohydrin, which has M.W. 700-7000. The colouring agent may be graphite or an organic pigment used in conjunction with a white filler to impart rigidity to the composition. Up to 50% by wt. of the epoxy resin may be replaced by another thermoplastic resin, e.g. an acrylonitrile styrene polymer or ethyl cellulose. A metal soap may be present to modify the hardness of the composition.
Patent GB-1528019-A (GB)
Title: Removing sulphur compounds from gases containing them
IPC: B01D53/50
Filed: 1975-12-19
Abstract: 1528019 Removing sulphur compounds INSTITUT FRANCAIS DU PETROLE 19 Dec 1975 [27 Dec 1974] 52147/75 Heading C1A A gas containing HIS and S0 2  which is discharged from a sulphur producing unit is purified by at least partly removing the SO2 and passing the resulting gas containing HIS over a solid ZnO- containing absorption mass to absorb H 2 S, periodically regenerating the solid mass by passing molecular oxygen over it, recovering the resulting SO2 and feeding it to a sulphur producing unit for reacting with H 2 S. The solid mass is preferably that described in the applicants Specification 1,522,519.
Patent GB-1132616-A (GB)
Title: Improvements in and relating to window stays
IPC: E05C17/18
Filed: 1966-11-22
Abstract: 1,132,616. Window stay. R. A. SANDERS. 26 Jan., 1967 [22 Nov., 1966], No. 52160/66. Addition to 1106928. Heading E2F. A window stay fitting with locking device 4 as in Specification 1,106,928, wherein the holes 2 are spaced along the length of the stay 1 and are interconnected by slots 3, is characterised in that the stay includes adjustable means whereby the effective length of the slots, permitting longitudinal adjustment of the stay relatively to the peg, may be limited so as to limit the extent to which the window may be opened. The means consists of a stop slidable along the length of the slots 3 and capable of being locked in any desired position. The stop may be a cylindrical nut 6 (Fig. 3) having a reduced diameter 7 which fits the holes 2. A screw-driver slot 8 enables the nut to be screwed on to a domehead screw 9 or to be partially unscrewed so that the nut can slide along the slots 3. In modifications, the stop may be (a) an elongated plate 12 (Fig. 4, not shown) slidable in a channel in the stay and secured by a screw 13; (b) a handle 14 (Fig. 5, not shown), having a tongue 15 slidable in slots 3 and secured by a screw 16; (c) a bolt and Nylok (Trade Mark) nut (not shown) wherein the distance between the flats of the nut is such as to provide a sliding fit in the channel formed on the underside of the stay. In a further modification, a leaf spring (Fig. 6, not shown) fixed to the nose 18 of a swivel fitting 17 on a window-casement loads the stay downwardly on to the peg of a conventional peg plate.
Patent GB-1369616-A (GB)
Title: Nail feed mechanism
IPC: B25C1/00
Filed: 1971-11-10
Abstract: 1369616 Nail driving devices TEXTRON Inc 10 Nov 1971 [18 March 1971] 52295/71 Heading B4C A nail driving device comprises a mechanism for feeding nails, connected and equi-spaced by wires to form a strip, to a drive track 18 in which a driving element 14 reciprocates. The mechanism comprises a substantially U-shaped nail feeding member 60 pivotally mounted on the rod 74 of a piston 72 and the rod and member 60 are respectively biased to the left and biased counterclockwise (Fig. 7) by a compression spring 82 and sleeve 84 slidably mounted on the rod. A plate 90 pivotable about pin 98 and biased by spring 100 includes nail engaging projections which prevent movement of the nails away from the drive track during retraction of the member 60. The spacing between the surfaces 64, 66 of the projections of member 60 and between the surfaces 102, 104 of the projections of plate 90 is less than the distance between the axes of two adjacent nails. The surface 102, when the leading nail is being driven and severed from the nail strip, prevents that nail moving from the drive track back into the nail feeding track 20. During feed from the magazine the nail heads are guided by upwardly facing surfaces on the inner sides of the wall portions of the magazine with grooves 46, 56 in the parts 30, 32 respectively of the nosepiece. Guide surfaces 110, 112  assist in guiding the head of the leading nail into the drive track.  The plate 90 is carried by a pivoted part 32 of nosepiece assembly 16 of the device, and is held in its closed position by a resiliently biased pivoted catch. A magazine for accommodating a coiled nail strip comprises a base 114, a first wall portion 118 secured to the base, a second wall portion 130 pivotally connected to the first wall portion, and a cover 132 secured to the second wall portion. A strap 124 secured, e.g. by welding to the first wall portion 118 is secured at one end 128 to a body part of the device by a nutmd-screw and the other end 126 is clamped between cylinder 76 and wall 36 of the nosepiece. The second wall portion is held in its closed position by its end 140 engaging in recess 142 in the movable part 32.  In operaton actuation of the device to initiate driving of a nail also causes supply of compressed air into cylinder 70 to move piston 72, rod 74, and member 60 against bias of spring 82. The projections on member 60 will call over the two leading nails and be returned to their nail feeding position (Fig. 7) when surface 66 is positioned behind the second nail. Simultaneously the nails will be prevented from moving towards the magazine by the projections on plate 90. When the device is de-activated the compressed air will be exhausted from the cylinder 70 and the spring 82 will move the rod 74 and member 60 on a nail feeding stroke. The last nail in the strip will be fed partially into the drive track by surface 64 on the leading projection of the member 60; full feeding being effected by the guide surfaces 110, 112 when the nail is driven.
Patent GB-1105367-A (GB)
Title: Proportioning syringe
IPC: A61B5/15
Filed: 1965-12-10
Abstract: 1,105,367. Syringe. E. P. MARBACH and J.P. MARBACH. Dec. 10, 1965 [June 11, 1965], No. 52621/65. Heading F1R. A plurality of liquids are drawn into a syringe in predetermined proportions by means of a gauge member 30 secured to the handle 26 of the plunger 12. The member 30 has a stepped free end providing axially spaced end surfaces 32 and 33 which may be successively engaged with the top surface of a flange on the barrel 11 to determine two axial positions of the plunger and thereby determine the quantity of a first liquid drawn into the syringe and a small additional quantity of a second liquid. The quantity of the second liquid may be less than the volume of a sampling needle 13 secured to the barrel. In a further embodiment, Figs. 4 and 5 (not shown), two axial positions of the plunger are determined by engagement of a gauge member (44) with the upper surface of barrel flange (40') and the upper surface (43) of a wedge shaped member (41) on the flange, respectively.
Patent GB-1463993-A (GB)
Title: Smoking devices
IPC: A24F1/32
Filed: 1975-10-28
Abstract: 1463993 Smokers' pipes and cigarette holders PARKER HARDCASTLE Ltd 28 Oct 1975 [5 Dec 1974] 52740/74 Heading A2M A smokers' pipe or cigarette holder is covered with a layer of dispersed fibres held in place by adhesive. The fibres are preferably of nylon but may be wool, cotton, rayon or silk. The adhesive is preferably an epoxy resin.
Patent GB-1456825-A (GB)
Title: Vacuum gauge
IPC: H01J41/06
Filed: 1973-11-14
Abstract: 1456825 Ionization manometers P SADLER 12 Feb 1975 [14 Nov 1973] 52758/73 Heading H1D A cold cathode ionization vacuum gauge comprises a loop anode 20 detachably mounted on a metal voltage stress shield 25. A tube 11, originally cylindrical, is flattened to provide two facing cold-cathode areas 13, one on each side of the Cr-Ni-Nb loop 20 sprung by its inturned ends into slots 23 and recesses 21 in stainless steel (high work function material) shield 25, itself attached by insulator 17 to annulus 16. For cleaning or replacement of anode 20 annulus 16 complete with shield and anode may be removed by unclamping 0-ring 15 by releasing locking ring 19, also allowing the cathode areas 13 to be cleaned by abrasion. Ring magnet 12 maintains a field perpendicular to cathode areas 13.
Patent GB-1276514-A (GB)
Title: Composition for the desiccation, wilting or defoliation of plants
IPC: A01N/
Filed: 1969-10-30
Abstract: 1276514 Defoliant/desiccant composition ROHM & HAAS CO. 30 Oct 1969 [19 Nov 1968] 53235/69 Heading C1B A method for desiccating and defoliating plants comprises applying to the plants a combination of (i) one or more amines of the formula C n H 2n+1 NH 2  wherein C n H 2n+1  represents a tert.-alkyl group (C 18-22 ), and (ii) tributyl phosphorotrithioite and/or tributyl phosphorotrithioate. Components (i) and (ii) may be combined to form a composition, or component (ii) may be applied to the foliage first followed by the application of the amine component (i). The weight ratio of component (i) to component (ii) is preferably in the range 14 : 0À37-8À07 : 15, more preferably 2À25 : 0À75-1À75 : 1À12. A preferred amine component is a mixture of amines, which mixture contains at least 80% by weight of amines of the formula C n H 2n+1 NH 2  with C n H 2n+1  as above defined, 5-70% by weight of the amine mixture having a boiling range at 760 mm. of 265-305 C. The combination of active ingredients may be applied at the rate of 1À24-15À5 lbs./acre. In liquid formulations 1- 15% by weight of the total formulation of a surfactant. Diesel oil or mineral oil may also be added. Wettable powders may be made by the incorporation of liquid formulations into a solid carrier. The present invention finds particular application in the defoliation and desiccation of potato plant leaves and cotton leaves.
Patent GB-1434261-A (GB)
Title: Clutch assemblies
IPC: F16D13/50
Filed: 1973-11-17
Abstract: 1434261 Friction clutches BRITISH LEYLAND UK Ltd 13 Nov 1974 [17 Nov 1973] 53506/73 Heading F2C A clutch assembly comprises a flywheel 11, a driven plate 16, a presser plate 20 and an annular disc spring 27 on the opposite side of the flywheel from the presser plate urging the presser plate 20 towards the flywheel 11 by means extending through holes 24 in the flywheel, a thrust bearing 26 for disengaging the clutch also being disposed on the opposite side of the flywheel from the presser plate, the disc spring acting between the flywheel 11 and a thrust plate 22 and serving to locate the presser plate 20 radially. The thrust plate 22 has portions extending through the holes 24 and bolted to the presser plate 20 (by bolts 23). The driven plate 16 is splined to an output shaft carrying an output gear 14, the clutch being for a transverse engined vehicle.