baber/WOPTO huggingface dataset:
Patent GB-1292707-A (GB)
Title: Electrostatic electroacoustic transducer
IPC: H04R19/01
Filed: 1970-08-28
Abstract: 1292707 Capacitor transducers PIONEER ELECTRONIC CORP 28 Aug 1970 [28 Aug 1969] 41614/70 Heading H4J An. electrostatic electroacoustic transducer, such as a push-pull loud-speaker, has two electrets 52, 62 facing each other with the facing surfaces oppositely charged and an electrically conductive vibratable membrane 7 positioned between them. Electrodes 5, 6 are connected tothe electrets 52, 62. The secondary of a transformer has one terminal connected to the membrane 7 and the other terminal connected to the electrodes 5 and 6.
Patent GB-979943-A (GB)
Title: Formable sheet and a method for fabricating same
IPC: B29C53/36
Filed: 1962-11-02
Abstract: 979,943. Moulding canoes; laminates. DOW CHEMICAL CO. Nov. 2, 1962 [Nov. 9, 1961], No. 41627/62. Headings B5A and B5N. [Also in Division B7] In a method for fabricating a composite formable sheet having a curved surface there is provided a rigid cellular sheet 12 having adjacent a major surface thereof a layer of mesh 14 and an adhering layer of resin 16 having a " gel stage " in its curing cycle, the coated sheet then being formed into a curved shape having the mesh 14 lying on a convex surface. The rigid cellular sheet 12 may be an expanded polystyrene or polyvinyl chloride foam or a composite board of wood chips, or fine-celled blast furnace slags. The layer of mesh 14 may be expanded metal or plastic, or a fabric, and may be in the configuration of a hexagonal honeycomb. The resin 16 employed may be phenol formaldehyde, epoxy, polyester, or rigid polyurethane resins. A canoe is described which was constructed by forming a sheet of expanded polystyrene to an outline shown in Fig. 4. A sheet of expanded metal mesh was cut to match the outline of the foam plastic blank and was applied to one surface of the same. A coating of a phenol formaldehyde resin having a gel stage of 12 hours at 24‹ C. was applied to the surface of the foam plastic sheet over the mesh, and was permitted to harden until the gel stage was reached. The sheet, with the expanded metal lath covered side outermost was then placed upon, and slowly forced to conform to, a frame having the outline of a canoe. The finally formed canoe was then held at a temperature of about 24‹ C. for 16 hours to complete the curing of the resin.
Patent GB-940997-A (GB)
Title: Improvements in or relating to electric motors
Inventor: DOUGLAS JOHN F H
IPC: H02K19/14
Filed: 1959-12-08
Abstract: 940,997. Squirrel cage constructions; core constructions. LOUIS ALLIS CO. Dec. 8, 1959, No. 41715/59. Heading H2A. In a salient pole synchronous induction motor magnetic " barriers " formed in the circular rotor laminations reduce crossaxis flux, i.e. flux that enters or leaves the rotor other than through the poles. The " barriers " are interruptions in the core which may be filled with non- magnetic metal, e.g. aluminium cast with the conductor bars. The conductor bars 14 of a squirrel-cage rotor are located in slots provided in the laminated magnetic core 12 which is fixed to a magnetic shaft 13. Six salient poles 17 are symmetrically spaced round the rotor by peripheral interruptions 18, the arcuate length of which is between 20% and 40% the arcuate distance between adjacent polar axes 28. The peripheral interruptions 18 which may also be filled with non-magnetic metal, are shallower than the winding slots 16 and are flat to enable the use of the same punching tool for different sized rotors. "Barriers" 21 are arranged so that there are three distinct low reluctance flux paths linking adjacent poles; an inner path 22 which includes the ferromagnetic shaft 13; an intermediate path 23<SP>1</SP> ; and an outer path 23. The inner barrier 21a has two radial legs 24 connected by an arcuate segment 25, whilst the outer barrier 21b is arcuate as shown and is spaced from the bottom of the oonductor slots 16 by a neck 26 of ferromagnetic material which saturates at a low percentage of the maximum flux. In larger machines additional strength is provided by a few non-magnetic, e.g. stainless steel, laminations 30 with holes 31 to allow the molten metal to fill all the slots (Fig. 3). In a further embodiment, the mechanical strength is improved by replacing the continuous slots with smaller slots of the same configuration (Figs. 4 and 5, not shown). In another embodiment, the inner " barriers " having radial legs are shaped so that the cast metal keys with the slot edge to resist the centrifugal force acting on the rotor (Fig. 6, not shown). The same punching tool may be used to make the barrier slots for rotors having different numbers of poles, the slots comprising radial and arcuate parts (Figs. 8, 9, not shown). Specification 771,669 and U.S.A. Specification 2,769,108 are referred to.
Patent GB-1283121-A (GB)
Title: Improvements in or relating to motor vehicle passenger compartment heating systems
IPC: F02F1/32
Filed: 1970-09-01
Abstract: 1283121 Heating and ventilating vehicles HONDA GIKEN KOGYO KK 1 Sept 1970 [4 Sept 1969] 41859/70 Heading F4V [Also in Division F1] The engine-driven fan 6 supplies air to the passenger compartment 2 of a vehicle through passages 4 in the cylinder head 3c and the or each ignition plug 14 is disposed in a chamber in the head defined by a wall 15, 16. The chamber is open to one of the passages 4 through an opening 17 adjacent the base of the wall 15, 16 and to the atmosphere through an opening 18 below a cover 19. A pivoted flap 10 controls the flow of heated air to the passenger compartment 2.
Patent GB-951881-A (GB)
Title: Seamless article, e.g. a glove, and method of moulding the same
IPC: B29C41/14
Filed: 1962-11-06
Abstract: 951,881. Rubber gloves. CHARLESTON RUBBER CO. Nov. 6, 1962 [Jan. 26, 1962], No. 41884/62. Heading A3V. [Also in Division B5] A rubber glove is dip moulded (see Division B5) with layers 11, 12, 13 integral, e.g. at the cuff and finger tips but separate over the rest of the glove. Sufficient air may be left between the layers to provide good heat insulation or the glove may be used as a liner for a non-elastic glove and the spaces between the layers filled with compressed air for use at high altitudes. Alternatively, the space may be filled with a foamed insulating material. In a modification, Fig. 3, the separating layer may be applied as shown at 21, and an inlet conduit 28 and outlet ports in the finger tips may be provided for circulating hot or cold air.
Patent GB-1445157-A (GB)
Title: Apparatus for removal of settled or strained solids from surr ounding liquid
IPC: B01D21/18
Filed: 1973-09-06
Abstract: 1445157 Removing solids from settling tanks and gratings PROMETALL UZNACH AG 6 Sept 1973 [6 Sept 1972 28 Nov 1972 18 Jan 1973 9 March 1973] 41994/73 Heading B1D An apparatus for removing solids from a settling tank 1 (Fig. 7) (or grating 101 (Fig. 12)) comprises a reciprocable carriage 2 (or 106) carrying scraper blade arms 13 (or rake arm 104) and arms 12 (or 112) supporting spring loaded rollers 21 (or 117), which rollers cooperate with cam surfaces 50 (or 142, 143) at the ends of the carriage movement to swing the scraper blade (or rake) to an operative position at one end of the carriage's travel and to an inoperative position at the other end. The arms 12 (or 112) are maintained at a fixed angle with respect to arms 13 (or 104). A pivotable skimmer 26 (Fig. 7) skims floating solids into trough 46 when the scraper blade is moving in its inoperative direction. The skimmer is raised at the end of its operative path of travel by roller 45 engaging rail 44 and is held in its upper position by shoulder 43 when the scraper blade is operating. The carriage 2 may be driven via endless chain or cable 36 by a motor external of the tank, or by a motor mounted on the carriage. The carriage 24 may be automatically reversed when it reaches the ends of its travel. In one embodiment (not shown) the carriage traverses over two adjacent tanks, there being scraper means for each tank. In Fig. 12 the rake 103 operates during its upward travel, removed solids being deposited in trough 150. The carriage 106 is connected by cable 136 to device 135 driven by a reversible motor (not shown) the motor being reversed when 'the rollers 117 engage an end contact 144 or 145. Switch 146 is a safety switch.
Patent GB-1133518-A (GB)
Title: Adjustable chrysanthemum or other flower bloom protector
IPC: A01G13/00
Filed: 1966-09-21
Abstract: 1,133,518. Flower bloom protector. P. L. TISDALL, J. V. MORTON and R. A. G. SMITH. 21 Sept., 1967 [21 Sept., 1966], No. 42049/66. Heading A1E. A protector for chrysanthemums or other blooms comprises a cage assembly made up of a number of vertical wires or struts 1 having inturned upper and lower ends, the lower ends 2 being located in a support tube 4, which can be attached by clips 5 to the stem of the plant or to a cane and the upper ends 7 are releasably engaged in a locking device comprising a disc 8 and a locking plate 9 which fits inside a flange around the edge of disc 8.
Patent GB-1048307-A (GB)
Title: Improvements in or relating to miniature lamp holders
Inventor: GREASLEY ERIC ARTHUR
IPC: B60Q3/04
Filed: 1964-10-15
Abstract: 1,048,307. Lamp holders. PRESSAC Ltd. July 22, 1965 [Oct. 15, 1964], No. 42082/64. Heading H2E. A lamp holder comprises a hollow casing 1 into which is fitted an insulated bush having near its forward end 4, a yieldable restriction which is smaller in diameter than the head of a contact 11 so that the contact can be pushed from the rear end of the holder into said insulating bush until resilient arms of the restriction snap behind the head of the contact to hold it in position. At the same time the flared end 13 of the contact snaps into the recess within the deformed rear end 9 of the bush. The bush is seated on a spring 10, and the whole assembly may be mounted in a panel by means of resilient fingers 2. The lamp holder may be formed to accommodate either a bayonet or screw-threaded lamp. The central contact may take various forms (Figs. 3-6, not shown) which all have an enlarged head portion.
Patent GB-1210964-A (GB)
Title: Differential drive arrangements
Inventor: MAINA MARIO JOSEPH
IPC: B60K17/346
Filed: 1968-09-05
Abstract: 1,210,964. Differential gearing. VAUXHALL MOTORS Ltd. 10 July, 1969 [5 Sept., 1968], No. 42191/68. Heading B7H. [Also in Division F2]  In a four-wheel drive motor-vehicle wherein an inter-axle differential 14 has an input planet carrier 12, driven by an input shaft 10 from an engine, clutch and usual C.S.G. (all not shown), and output ring and sun gears 18, 22 respectively connected via crown wheels and pinions 30, 34 and 42, 44 of front and rear inter-wheel differentials (not shown) to the front and rear wheels 36, 46, a one-way sprag clutch 26, arranged between the ring and sun gears 18, 22, limits (i.e. locks) inter-axle differential action whenever the ring gear 18 overruns the sun gear 22 by more than a predetermined amount i.e. during front wheel spin or rear wheel lock viz. brake skid, the ratios of the front and rear inter-wheel axle being arranged so that the sun 22 normally rotates faster than the rim 18, the latter of which receives <SP>2</SP>/ 3  of the torque input from the shaft 10 whilst the sun 22 receives the remaining 1/3, the number of teeth on the sun 22 and each of the planet pinions 16 being equal.
Patent GB-1084616-A (GB)
Title: Method and apparatus for producing stretchable, high-bulk yarns
IPC: D02G1/10
Filed: 1965-10-06
Abstract: Thermoplastic yarns are edge-crimped by means of a sharp edge placed in water at a temperature of 50 DEG C or higher.  In one embodiment a multifilament yarn of nylon, polypropylene, or a polyester is passed in turn through four baths each containing a blade, and then dried in hot air on a frame before being wound. Alternatively the yarn is passed over two blades in a single bath, each blade having two sharp edges, and then over two further double edged blades radiantly heated in air.  The crimp is developed in the yarn by a steam or hot water treatment.  The water in which the yarn is edge crimped may contain an organic or inorganic acid or salt, an alkali, an ester or alcohol, or a fibre lubricant.  A non-commercial process is also described of edge-crimping in air yarns which have been wetted by passage over a roller rotating in a bath.
Patent GB-1281748-A (GB)
Title: Method of and apparatus for determining the presence and/or quantity of a fluorescent substance in a volume in water
Inventor: FRUNGEL FRANK
IPC: G01N21/64
Filed: 1969-08-28
Abstract: 1281748 Photo-electric detection of fluorescence IMPULSPHYSIK GmbH 28 Aug 1969 42828/69 Heading G1A [Also in Division C4] Apparatus for detecting the presence and/or quantity of a fluorescing substance in a particular volume in water comprises a pulsed discharge tube 1, producing regular flashes, which are directed, via a filter 5 which includes passage of light of the fluorescence wavelengths, comprising water, and a detecting arrangement, comprising a lens 10, a filter 11 to pass the fluorescence wavelengths and a photo-multiplier 12 (or photodiode), detecting fluorescence in the irradiated volume. The whole apparatus together with associated circuitry and recording apparatus, is contained in a pressurized casing 20, which may be immersed in the sea for long periods, or towed behind a ship. The detector circuit comprises amplifiers 15, 16, an amplitude discriminator, if required, and a tape recorder. This records the time which elapses (from clock 19), depth information and the fluorescence intensities obtained. The source or detector circuitry are powered by long-life battery 21 and the source energized by means of capacitor 2. Typical applications are measuring the flow-rate in e.g. a river by fluorescence measurements after e.g. rhodamine, has been added to the flow, or measurement of plant life growth by use of the fluorescence properties of chlorophyl in phytoplankton.
Patent GB-1436409-A (GB)
Title: Cephalosporin derivatives
IPC: C07D265/32
Filed: 1973-09-13
Abstract: 1436409 Peptide derivatives of cephalosporins PFIZER Ltd 5 Dec 1974 [13 Sept 1973] 43033/73 Heading C3H [Also in Division C2] Novel cephalosporins I (in which R<SP>1</SP> is phenyl, 2- or 3-thienyl, or 2- furyl, the phenyl and thienyl groups optionally being substituted by one or more of halo, OH, CF 3  or 1-6 C alkyl or alkoxy; R is OH and R<SP>2</SP> is H, OH, OCOCH 3 , OCONH 2 , N-pyridyl, substituted N-pyridyl, azido or heterocyclylthio or R and R<SP>2</SP> together represent an -O- atom ; R<SP>3</SP> is COOH, SO 3 H, COOR<SP>4</SP> or CONR<SP>5</SP>R<SP>6</SP>; R<SP>4</SP> is 1-6 C alkyl, 5-indanyl, naphthyl or phenyl optionally substituted by halo, CF 3  or 1-6C alkyl or alkoxy; R<SP>5</SP> and R<SP>6</SP> are H, 1-6C alkyl or cycloalkyl or NR<SP>5</SP>R<SP>6</SP> is a saturated heterocyclyl group; X is -NR<SP>7</SP>-, R<SP>7</SP> is H, 1-6 C alkyl, 2-6 C alkenyl, or benzyl; alk<SP>1</SP> is -OH 2 - and alk<SP>2</SP> is a 1-3C divalent, saturated aliphatic hydrocarbon radical) and salts thereof are prepared by (1) reacting a compound II with a cyclic anhydride III or IV (in which X is other than -NH-); (2) reacting a compound II with a compound VI or a compound IX (in which X is other than -NH-) or with an acid chloride, activated ester or mixed anhydride of a compound VI or IX; (3) deprotecting a compound I in which X is -NR<SP>7'</SP>-, R<SP>7'</SP> being a protecting group, to give a compound I in which X is NH; (4) reacting a compound I in which R<SP>2</SP> is OCOCH 3  with an appropriate pyridine, sodium azide or heterocyclic thiol to give a compound I in which R<SP>2</SP> is N-pyridyl, azido or heterocyclylthio; (5) reacting a compound I in which R and R<SP>2</SP> are each OH with a mineral acid to give a compound I in which R and R<SP>2</SP> together represent an -O- atom; and (6) hydrolysing a compound I in which R<SP>2</SP> is OCOCH 3  to give a compound I in which R<SP>2</SP> is OH.
Patent GB-1195637-A (GB)
Title: Thermal Treatments in Fluidized Beds
IPC: B01J8/18
Filed: 1968-09-11
Abstract: 1,195,637. Heating fluidized beds. FALCONBRIDGE NICKEL MINES Ltd. 11 Sept., 1968 [14 Sept., 1967], No. 43117/68. Heading F4B. [Also in Division C1] A fluidized bed reactor is heated by the combustion of an explosive mixture of gases (e.g. a mixture of natural gas or propane and air) the gases being delivered by separate fans 20, 21 to a common header 18 outside the shell of the reactor, and feeding the mixture to the hearth of the reactor by conduits 22 having parts outside the shell so that the gaseous mixture is maintained below its ignition temperature. The arrangement is such that the velocity of delivery of the gases is above the flame propagation speed of the gaseous mixture, and restrictions may be formed in each conduit to increase the gas velocity. To prevent diffusion within the refractory hearth of the lining, the delivery end of each conduit may be surrounded by a sleeve embedded in the hearth and secured to the reactor shell. The conduits 22 are preferably made of soft metal, so that they can be crimped to cut off gas flow in the case of a blockage. The reactor is used for the production of metal oxides from high melting point chlorides, and the bed may be formed of particles of the same or a different oxide. To start up the reactor, the mixture of gases is ignited prior to feeding the bed particles to the reactor. Material, such as non-volatile chlorides, is fed pneumatically to the bottom of the bed through an inlet 15, or delivered through an inclined feed pipe 23. A solution of chloride, which may be the liquor from a pickling bath is sprayed on to the top of the bed from a pipe 24. Product granules are discharged from a pipe 16, undersized granules being returned through a feed pipe 27, and dust and hydrogen chloride are recovered from the waste gases. The reactor may be used to regenerate spent moulding acid. The gas delivery conduits may be capped, or may taper upwardly, or may diverge from a restricted bottom part, or a restriction may be formed at the base of the conduit by allowing it to project into the header (Fig. 7, not shown).
Patent GB-1393488-A (GB)
Title: Ultraviolet screening agents and coating materials containing organosilane ester groups
IPC: C08J7/046
Filed: 1973-09-14
Abstract: 1393488 Coated Products E I DU PONT DE NEMOURS & CO 14 Sept 1973 [15 Sept 1972] 43231/73 Heading B2E [Also in Division C3] Quartz, poly (methylinethacrylate) and polycarbonate sheets are coated with UV-screening compositions based on novel UV-absorbing silanes of the formula wherein R denotes a divalent hydrocarbon or oxygen-interrupted hydrocarbon radical of up to 10 carbon atoms, R<SP>1</SP> denotes an aliphatic hydrocarbon radical or acyl radical of less than 5 carbon atoms, or a radical of the formula (CH 2 CH 2 O) u Z wherein  u  is an integer of from 1 to 8 and Z is an aliphatic hydrocarbon radical of less than 5 carbon atoms, R 2  denotes a stable mono- or divalent hydroxyaromatic radical containing up to four aromatic rings and joined to oxygen through an aromatic carbon and absorbing light in the region of 2,500 to 4,000A, a is 0 or 1 and b is 1 or 2, and containing as further ingredients ethanolic polysilicic acid, tetrafluoroethylene/ 4-hydroxybutyl vinyl ether copolymers, n butanol tert-butanol mixed solvent, and optional amounts of glacial acetic acid, hexa- (methoxymethyl) melamine, a block copolymer of an alkylene oxide and dimethylsiloxane, methanolic potassium thiocyanate and 2, 5, 8, 15, 18, 21-hexaoxa-tricyclo (20.4.0.0 <SP>9</SP> <SP>14</SP>) hexacosane.
Patent GB-981900-A (GB)
Title: Improvements in and relating to broad gear shaving machines
IPC: B23F19/06
Filed: 1962-11-16
Abstract: 981,900. Gear-finishing. F. HURTH, and H. HURTH. Nov. 16, 1962 [April 13, 1962], No. 43391/62. Heading B3K. A machine for shaving crowned and conical gears comprises an angularly-adjustable feed slide 12, carrying a tilting table 15 controlled by guide cam 24, Fig. 4, which is angularly adjustable independently of the slide and is also adjustable at right angles to the direction of feed. The slide 12 is fed by a screw 31 mounted in an angularly adjustable support 11, the machine being similar to that described in Specification 931,607. The slide 12 carries a roller 23 freely mounted on a spindle 35. The roller engages the guide 24 which is adjustable angularly by a powered worm 41 on a threaded post 43 adjustable vertically by gearing 48, 47, 45 rotated by a motor. (In a modification, the roller 23 is vertically-adjustable instead of the post 43). The post 43 can be moved vertically by dogs 130, 131, Fig. 3, on the slide which act through a lever 123, a bell-crank 122, an adjustable pin 119, a slide 116, a pin 114 and a bushing 110. The movements are limited by micrometer means 139a, 139b, engaging a pin 117. Thus, teeth of a long gear may be crowned only at the ends under the control of the dogs 130, 131. In modifications, the transmission of the movement of the dogs 130, 131 may be through hydraulic or electrical means and may adjust the worm 41 or the nut 45 instead of the bushing 110, or may adjust a screw engaging the bushing 110 or may rotate the post within its nut. Alternatively, the bushing 110 may be an hydraulic piston or the guide 24 may be moved by hydraulic means.
Patent GB-1083003-A (GB)
Title: Hot metal spraying of bearing materials
Inventor: MICHAEL ANTHONY DENNIS
IPC: B05B16/80
Filed: 1964-10-23
Abstract: A plain bearing is formed by flame spraying at least two metal constituents, one comprising Al and the other Pb on to a backing member. The backing member may be Al, steel coated with Ni, Al, Cu, Zn, In or Ag, and the backing may be coated with an intermediate layer such as Cu, Cu base material, Mo base material or nickel aluminide.  The sprayed coating preferably contains 70-98% Al and in addition to Pb may contain Sn, Sb, Si, Cu and In. The Al may be an alloy containing Cu, Ni, Mn, Si and Mg.  The coating constituents may either be sprayed simultaneously from separate guns or sprayed as a composite mine from a single gun e.g. Al sheathed Pb core or Pb sheathed Al core.  The backing in the foam of a strip is moved continuously under the spray guns and is heated to at least 150 DEG C., the spray guns being adjustable in position and being arranged so that the jets of the different material overlap.  It is preferable to use at least two guns for spraying the Al and one gun for the Pb. The coated strip is nulled to 10 to 70% thickness reduction and then heat treated. Argon, nitrogen or carbon dioxide is also directed on to the area being coated in order to prevent oxidation. The spray guns may be gas guns, electric arc guns or plasma jet guns.  In an alternative embodiment a first layer of Al is sprayed on the backing followed by successive layers with increasing Pb content.
Patent GB-959585-A (GB)
Title: Excavators
Inventor: KELLY ALEC JAMES
IPC: E02F3/38
Filed: 1960-12-20
Abstract: 959,585. Earth-excavator slewing means. J. C. BAMFORD (EXCAVATORS) Ltd. Feb. 21, 1962 [Dec. 20, 1960], No. 43827/60. Heading E1F. [Also in Division B8] Rack and pinion-driven slewing means for a moving part e.g. a king post, of an excavator or the like is formed as a unitary, fluid-tight assembly in which the casing 10 thereof besides housing the rack 27 and pinion 20 is so formed as to provide a pair of opposed cylinders 23 for the pistons 26 at the ends of the rack 27.