baber/WOPTO huggingface dataset:
Patent GB-1188390-A (GB)
Title: Cutting Blades for use in Excavators
Inventor: FULFORD DENNIS RODNEY
IPC: E02F3/14
Filed: 1967-11-09
Abstract: 1,188,390. Excavator cutter blades. ATKINS FULFORD Ltd. 11 Nov., 1968 [9 Nov., 1967], No. 51082/67. Heading E1F. A cutting blade 1 for use in an excavator comprises a plate 2 securable to the excavator and a cutting tip 6 that is releasably secured to the plate 2 so that the tip can be replaced when worn. Preferably a flat blank may be bent to provide a plate 2 having two, mutually inclined, flat parts of which one part can form a side plate of a link of an endless chain 5 whilst the other part carries the tip. Rectangular or circular blanks are bent about diagonals or diameters to form tips having U shape transverse cross sections. The limbs of such tips permit of the tips being releasably and pivotally secured to the plates 2.
Patent GB-1161682-A (GB)
Title: Improvements in or relating to Machines for Treating Fruit
Inventor: BUICK DOUGLAS STEWART
IPC: A23N1/00
Filed: 1965-12-03
Abstract: 1,161,682. Machine for treating fruit. ROBERT KELLIE & SON Ltd. 5 Dec., 1966 [3 Dec., 1965], No. 51325/65. Heading A4C. [Also in Division B5] In a machine for splitting and removing the pulp from fruit, the fruit is fed from the vertical feed trunk 1 to feeding and splitting devices 2 each consisting of a spiked roller 3 supporting, in the middle of the roller, a circular saw blade 4 of diameter larger than that of the roller, the planes of the saw blades intersecting on a common line coincident with the axis of trunk 1. The quarters of fruit, guided by curved guideways 5 intersecting at an apex 6, pass between the pulp-removing knives 7, formed with pulp-removing teeth 8 and consisting of a plurality of toothed discs arranged coaxially with the teeth of adjacent discs out of register, and the skin removing knives 9, the cutting edge of each knife 9 projecting into the gap between associated feed roller 3 and pulpremoving wheel 7. The pulp is removed from the gaps between the discs forming the wheels 7 and from the cavities between the teeth 8 by means of pulp stripping fingers 11 and discharged through trunk 10 to a screw drive 12 to be conveyed to discharge opening (13).
Patent GB-1010671-A (GB)
Title: Apparatus for catalytic cracking of hydrocarbons
IPC: B01J8/06
Filed: 1963-10-23
Abstract: <PICT:1010671/C4-C5/1> Apparatus as described in Specification 1,006,810 for catalytic cracking of hydrocarbons comprises a discontinuous screen between burners and reaction tubes in which the screen is foraminated, e.g. as shown.
Patent GB-1344307-A (GB)
Title: Heat-sensitive recording sheet
IPC: B41M5/323
Filed: 1971-11-09
Abstract: 1344307 Thermographic materials GENERAL CO Ltd 9 Nov 1971 [20 Nov 1970] 51949/71 Heading G2C A thermographic material comprises a support coated with a layer containing (i) an iron salt of an aliphatic acid, (ii) 8-hydroxyquinoline which may be substituted by halogen atom(s) and (iii) ethylenediamine tetra-acetic acid and/or an alkali metal salt thereof as stabilizer. The layer may also contain a pigment, a binder, a fatty acid or a wax.
Patent GB-1328275-A (GB)
Title: Polylithic bandpass filter having attenuation pole frequen cies in the lower stopband
IPC: H03H9/60
Filed: 1970-11-02
Abstract: 1328275 Piezoelectric filters AUTOMATIC ELECTRIC LABORATORIES Inc 2 Nov 1970 [6 Nov 1969] 52093/70 Heading H3U A piezoelectric bandpass filter includes at least two coupled resonators, each coupled resonator being formed on a separate piezoelectric blank and comprising two resonators each formed of electroded areas arranged on opposite sides of the common blank, the electroded areas being physically separate but sufficiently closely spaced that mechanical coupling of the two resonators is provided by the blank. Fig. 1 shows one such coupled resonator consisting of the two resonators A, B, the mechanical coupling path 8 being in the crystal 1 and there being electroded areas on the underside of the crystal beneath the areas 2, 5. Input and output leads are denoted by 4, 7 and 3, 6. Fig. 5 shows the equivalent circuit of a filter according to the invention in which there are three coupled resonators 10C, 10D, 10E each as shown in Fig. 1. The object of the invention is to provide an attenuation pole or poles in the lower stopband and to this end the coupling paths between adjacent coupled resonators are connected by the parallel combination of a capacitor and a single quartz crystal resonator. Thus the paths between 10C and 10D are connected by capacitor 40 and resonator 20 and the paths between 10D and 10E are connected by capacitor 50 and resonator 20<SP>1</SP>. The attenuation poles in the lower stopband are produced at the resonant frequencies of the resonators 20, 20<SP>1</SP>.
Patent GB-1360464-A (GB)
Title: Manufacture of abrasion-resistant magnetic recording media
IPC: G11B5/64
Filed: 1971-11-11
Abstract: 1360464 Depositing metals in making magnetic recording media BADISCHE ANILIN- & SODA-FABRIK AG 11 Nov 1971 [12 Nov 1970] 52452/71 Headings C7B and C7F A process for the manufacture of abrasion resistant magnetic recording media by electrodepositing a magnetizable metal layer based on cobalt and nickel on a metallic interlayer which has been applied to a flexible non-magnetizable substrate, comprises taking a substrate which has been provided with an adherent coating consisting of a dispension of finely divided Fe or Zn having a mean particle size of from 0À1-2Á in a binder, in which the metal content is at least 50 per cent by weight, and treating the coated substrate in an aqueous Cu salt bath so as to effect electroless deposition of Cu in exchange for Fe or Zn, calendering the Cu layer and electrolytically depositing on the calendered metallic layer by means of insoluble anodes a magnetic layer comprising a magnetisable alloy of from 90-20% Co and 10-80% Ni and containing, based on the total weight of Co and Ni, from 0À1 to 1À5% P, 0À05-2% Cu and 0À05-5% Zn &/or Mn. The electrodeposition may be from an aqueous electrolyte at pH 4 to 5À5 made up from hypophosphite; Ni as citrate sulphanate chloride or sulphate; Co as chloride or sulphate; Cu as chloride or sulphate; FeSO 4 , ZnSO 4 ; MnCl 2 ; NH 4 Cl; triethanolamine; citrate; tartrate; aminocarboxylic acid; and wetting agents such as addition products of ethylene oxide and long-chain fatty acids or alcohols or alkyl phenols. If desired Ag or Cu may be deposited electrolytically to a depth of 0À5-1À5Á on the electroless Cu deposit. Examples describe the coating of metal powder dopes on polyethylene tenephthalate films. The products may be laminated to plates and discs of Al, brass, glass, paper, ceramics and alloys.
Patent GB-1363426-A (GB)
Title: Bladed rotors
IPC: B64C11/06
Filed: 1970-11-04
Abstract: 1363426 Propellers DOWTY ROTOL Ltd 11 Oct 1971 [4 Nov 1970] 52557/70 Heading B7V [Also in Division F1] The blades of a rotor are adjusted by the sliding movement of a control member in the rotor hub The hub is formed in two parts which are secured together to mount the blades and which have a space between them to allow connection of the control member to the blades. As illustrated, variable pitch aircraft propellor blades 27, 29, 30 and 32 are mounted in sockets formed by two hub parts 13 and 14 which are fastened together by bolts 15. Each blade has a pin 66 which enters a socket in an axially movable piston 64 so that movement of the piston alters the blade pitch. A spring 71 and Belville washers 72 bias the piston to its Fig. 1 position in which the blades are fully feathered. Admission of pressure fluid through a pipe 59 moves the piston against the spring bias to decrease the coarseness of the blade pitch. In the extreme position in which surfaces 81 and 82 are in contact, the blades are in their reverse pitch range. The piston 64 is of square section and is prevented from rotating about its axis by slide blocks 67 and slide buttons 69. Fly-weights 48 are attached to the blades by U-bolts 49 and act to oppose centrifugal twisting moments in the blades and to bias the blades in the pitch coarsening direction.  In alternative applications, the blades may be of variable twist or variable camber, or the rotor may be a propeller for an air cushion vehicle or a ship, or may be a fan or the rotor of a ram-air turbine.
Patent GB-1529630-A (GB)
Title: Device for adjusting the output frequency of a frequency divider
IPC: G04G3/02
Filed: 1976-12-17
Abstract: 1529630 Electronic watches JEAN-CLAUDE BERNEY SA 17 Dec 1976 [23 Dec 1975] 52912/76 Heading G3T [Also in Division G4] An arrangement for adjusting the output frequency of a frequency divider 2, 5, particularly for use in regulating a quartz timepiece, comprises a resistance-capacitance network RC arranged to introduce a time delay to the output pulse train, an exclusive OR gate 7 arranged to produce a pulse for the duration of the time delay and means 3, 4 for altering the division ratio of the divider 2 for the duration of the time delay. The divider 2 normally issues an output pulse after no input pulses but is reset after n <SP>1</SP> by decoder 3 and gate 4 when the pulse is supplied by gate 7. The frequency change is linearly dependent on the resistance R. In a modification Fig. 3 (not shown) switching allows the division ratio also to be increased thus doubling the total range of control provided by the variable resistance. The division ratio may alternatively be altered by deleting or adding pulses in known manner.
Patent GB-1110913-A (GB)
Title: Dual output thermal storage heater
Inventor: WILKINS PHILIP ARTHUR
IPC: F24H7/04
Filed: 1965-12-16
Abstract: 1,110,913. Thermal storage heaters. WILKINS & MITCHELL'- Ltd. 18 Nov., 1966 [16, Dec., 1965], No.53357165. Heading F4U. A storage heater has two independently operable fans for passing separate streams of air through separate compartments in the heat storage mass. As shown, the heat storage mass comprises three blocks 11, 12, 13 having recesses in their faces which no-operate to define semi-elliptical compartments 20, 21. The heater casing has two separated inlets in one end thereof and independently operable fans circulate air from each inlet, through the associated compartment 20 or 21 and through separate outlets in opposite side walls of the casing (Fig. 3, not shown). Preferably the heater is mounted in an aperture in a wall separating two rooms with one inlet and outlet in direct communication with one room and the other inlet and outlet in communication with the other room. Alternatively the heater is placed in a room and ducting is employed to connect one inlet and outlet with another room. A plurality of compartments, connected to form two groups, may be provided in the heat storage mass. The fans are preferably arranged co-axially and may be of centrifugal, axial or cross-flow type. The storage mass may be made up of superposed slotted bricks.
Patent GB-1162249-A (GB)
Title: Improvements in or relating to Stoppers for Freeze Drying Containers
IPC: B65D51/24
Filed: 1966-11-29
Abstract: 1,162,249. Stoppers. H. WIMMER, [trading as PHARMA-GUMMI HANS WIMMER]. 29 Nov., 1966 [2 Dec., 1965] No. 53477/66. Heading B8T. A rubber &c. stopper comprises a cylindrical body having an attachment zone 107, a sealing zone 105, 105b between which is an intermediate zone 106 through which are passages 193, 193b leading to the interior of a vessel in which the stopper is inserted, there being between the zones 106 and 107 a flexible stop (e.g. a step in Fig. 5 or a lip 90) which can hold the stopper so that the passages 193, 193b are open, but when pressure is applied will yield to close the passages, the sealing zone mating with the bottle neck. The intermediate zone may alternatively comprise a ring of depending pins, the gaps between the pins forming the passages. There may be a central bore passing into the sealing zone so that there is a thinner portion in the top suitable for penetration by a hypodermic needle.
Patent GB-1480760-A (GB)
Title: Needle thread wiper and pull-back mechanism for sewing machines
IPC: D05B65/06
Filed: 1974-12-13
Abstract: 1480760 Sewing machine thread wiper SINGER CO 13 Dec 1974 [21 Jan 1974] 53902/74 Heading DIG  A sewing machine which has a head cover 39, an actuator 40 for providing a thread wiper arm 47 with a fixed stroke, has a thread pull back lever 60 pivoted within the cover to swing in an arc traversing the path of the needle thread 20 between the take up 23 and the needle 15, the stroke of the lever 60 being adjustable through an aperture 81 in the cover. Actuator 40 comprises a rotary solenoid driving a crank 42 connected by a member 51 to a bell crank lever 45 carrying the wiper arm 47. The lever 60, pivoted at 63 to a bracket 64, has an adjustable connection at 66 with a link 67 adjustably connected at 68 to member 51. The connection at 66 includes a radial slot 65 so that adjusttneht thereat, from outside the machine by way of the aperture 81, varies the lever stroke while the connection at 68, not accessible from outside in this embodiment, is adjusted to set the rest position of the lever.
Patent GB-1448458-A (GB)
Title: 1,3-dioxan derivatives and pharmaceutical compositions thereof
IPC: C07D407/04
Filed: 1973-11-21
Abstract: 1448458 1,3-Dioxan derivatives ALLEN & HANBURYS Ltd 7 Nov 1974 [21 Nov 1973] 53924/73 Heading C2C [Also in Division A5] Novel compounds of the Formula I in which R 1  represents cycloalkyl, aralkyl, heterocyclic aryl, or substituted phenyl, in which the substituents on the phenyl group are one or more of the following groups, that is halogen, hydroxy, alkoxy (C 1 -C 4 ), alkyl (C 1 - C 4 ), nitro, dialkylamino or methylenedioxy; R 2  represents a hydrogen atom, or together with the group R 1  and the adjacent carbon atom represents a cycloalkyl group with 3 to 7 carbon atoms inclusive; R 3  represents a group R 5 CO-, or R 5 CH(OH)- in which R 5  is methyl or ethyl; R 4  is an alkyl group (C 1 -C 6 ) or a phenyl group; or R 4  and R 5  together form a 3-, 4- or 5-membered alkylene chain and where the compounds contain hydroxyl groups, esters of such compounds; and where the compounds contain basic centres, non-toxic pharmaceutically acceptable salts with organic or inorganic acids may be prepared by (1) where R 3  is R 5 CO, condensing a compound of the Formula III in which R 4  and R 5  are as defined above or are groups convertible thereto with an aldehyde of the formula R 1 CHO or a cycloalkylketone of the formula R 1 R 2 CO; (2) where R 3  is R 5 CHOH, reducing the corresponding compound in which there is a group R 5 CO in the R 3  position; (3) where R 3  is R 5 CHOH in which R 5  is methyl or ethyl, reacting a compound of the Formula VI with a Grignard reagent R 5 MgX or an alkyl lithium R 5 Li; (4) where R 3  is R 5 CO in which R 5  is as in (3), oxidizing the corresponding compound in which R 3  is R 5 CHOH; optionally followed where possible by ester formation at free hydroxyl groups and/or salt formation. 3,3 - Bis - (hydroxymethyl) - 2 - octanone is prepared by reacting 2-octanone with formaldehyde in the presence of lithium hydroxide.
Patent GB-1316409-A (GB)
Title: Control devices for electronically generated light pulses
IPC: G03B7/16
Filed: 1970-04-27
Abstract: 1316409 Photo-electric flash control PONDER & BEST Inc 27 Apr 1970 [27 June 1969 22 Sept 1969] 54092/72 Divided out of 1309771 Heading G1A The description is the same as the parent but the claims are directed to a light sensing means for the control of an electronic flash unit in which light reflected by the subject can be received from a separate one of a plurality of directions independently of the direction of the light from the flash unit and without physically repositioning the body in which it is mounted. The adjustable optics may comprise an L-shaped bundle of fibre optics rotatable about one of its limbs.
Patent GB-1253807-A (GB)
Title: Improvements in or relating to preparation of ceramic materials
Inventor: LANE EDWARD SYDNEY
IPC: B01J13/00
Filed: 1967-11-30
Abstract: 1,253,807. Ferrites. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 18 Nov., 1968 [30 Nov., 1967], No. 54662/67. Heading H1H. [Also in Division C1] Ferrites e.g. MgMn ferrite, NiZn ferrite and MnZn ferrite are formed by coprecipitating in the presence of a precipitating agent (e.g. a base, carbonate or oxalate) the component metal oxides (or compounds decomposable thereto) in the form of gel particles from an aqueous mixture of the component oxides or salts, which mixture contains a protective agent (i.e. an agent for imparting to the aqueous mixture the property of gelling in the presence of a precipitating agent), separating, washing and drying the gel particles and heat treating these particles until a solid state reaction is completed between the component metal oxides or compounds to form a mixed oxide ceramic material.
Patent GB-1373735-A (GB)
Title: Automatic exposure control device
IPC: G03B7/085
Filed: 1972-11-27
Abstract: 1373735 Exposure control NIPPON KOGAKU K K 27 Nov 1972 [30 Nov 1971] 54752/72 Heading G2A An automatic exposure control device comprises a reversibly rotatable motor M which sets an exposure factor, e.g. diaphragm aperture or shutter speed, in one sense or in an opposite sense depending on the direction of rotation of the motor, a pair of terminals for connecting the motor terminals, c and d, to a single voltage source E, a switching circuit, e.g. transistors T 7 , T 8 , T 9  and T 10 , operable to two conditions in which it respectively connects the motor terminals in opposite senses to the pair of terminals, means e.g. photo-sensitive element Rph, for measuring exposure conditions and means, e.g. transistors Ti and T2, responsive to the photo-sensitive element to operate the switching circuit so that the motor rotates in the desired direction to vary the exposure factor. The photo-sensitive element Rph forms part of a balancing bridge comprising resistors of equal value R 1  and R 2  and a variable resistance Rv which is operatively linked to motor M and controls the exposure factor. When light falling on Rph renders its resistance less than that of Rv (over-exposure condition), the potential at a is more positive than that at b and transistors T 1  and T 2  are conductive and non-conductive respectively. This renders transistors T 3 , T 7  and T 1  0  conductive so that the terminals c and d of motor  M are connected to the positive and negative terminals of the voltage source E respectively. The current flows in the direction i 1 , the motor rotates and varies Rv, which in turn controls the exposure factor, until Rv equals Rph and the bridge is balanced rendering all transistors non-conductive. When the bridge is initially unbalanced in the opposite direction transistors T 2 , T 4 , T 8  and T 9  become conductive and the motor is driven in the opposite direction.
Patent GB-1132720-A (GB)
Title: Apparatus for burning liquid or gaseous fuels in a fluidised bed
IPC: B01J8/18
Filed: 1965-12-24
Abstract: 1,132,720. Fluidized bed apparatus. UNISEARCH Ltd. 24 Dec., 1965 [31 Dec., 1964], No. 54866/65. Heading F4B. A fluidized bed reactor comprises, within a casing 10, a plurality of fireclay, inverted, crucible-like, combustion chambers 27, the burners 23 of which are supplied with fluid fuel and air by pipes 22 and 26 respectively. Combustion products pass through a series of outlets 28 into the fluidized bed 14 and then through slots 33 into a heat exchanger 25 used for heating incoming air. Precise temperature control of the air is achieved by feeding signals from a pyrometer 30 to controllers 31 and 32 which adjust, by means of valves 21 and 24, the supply of fuel and air. Finely ground limestone from hopper 11 is fed, through a water-cooled pipe 13, by an electromagnetic vibratory feeder 12, the path of the limestone within the bed being constrained, to that indicated by arrows, by means of a baffle 18 extending across the width of the reactor. After calcination, quick-lime passes through outlet 16 to hopper 17. Any solid particles carried by combustion products through slots 33 are forced by the cyclone separator 34 to return via pipe 35.
Patent GB-1077073-A (GB)
Title: Manufacture of potassium nitrate
IPC: C01D9/04
Filed: 1965-12-29
Abstract: Potassium nitrate is produced by heating a mixture of potassium chloride and phosphoric acid at a temperature of 200-700 DEG  C. until the evolution of gaseous HCl ceases, adding to the resulting solution an aqueous solution of nitric acid eo as to produce a potassium nitrate solution from which crystals may be obtained by cooling the solution preferably to ambient or 0 DEG  C.  Either a great excess, i.e. 50 to 100% by weight or an approximately stoichiometric amount of phosphoric acid may be used when reaction temperature is 200-400 DEG  C. or 400 DEG  to 700 DEG  C. respectively.  In the first case, potassium dihydrogen phosphate and in the second potassium metaphosphate is produced in the reaction solution.  The amount of nitric acid used is preferably in the proportion of 1 to 1.1 mole of nitric acid to each mole of either potassium dihydrogen phosphate or potassium metaphosphate in the solution. The mother liquor obtained from the crystallization may be heated, preferably at 150-250 DEG  C., when nitric acid distils over and may be utilized in the process and the distillation residue contains potassium dihydrogen phosphate and phosphoric acid which may be used in the first step of the process.  The process may also be used for preparing potassium nitrate based fertilizers, by neutralizing a slurry of potassium nitrate and the mother liquor with ammonia. An alternative fertilizer product may be obtained by treating rock-phosphate with the acid mother liquor obtained after crystallization of the KNO3.  To produce fertilizer compositions more economically, part of the original nitric acid used to attack the KCl may be replaced with NH4NO3.
Patent GB-1453603-A (GB)
Title: Multipurpose prefabricated electrical installation
IPC: H01R25/14
Filed: 1973-11-28
Abstract: 1453603 Distribution system M SOQUENNE 28 Nov 1973 [7 Dec 1972 10 Oct 1973] 55268/73 Heading H2E An electrical supply device comprises preferably steel channel section ducting 10 fixable to a surface, within at least one flank a slotted insulating preferably refractory member so that an adaptor 11 providing electrical connection 22 to an appliance may be inserted and supported at any point in the duct, two power contacts being made to contact the power conductors 1 and 2 by a camshaft 12 normal to the substantially flat back of the duct, while auxiliary contacts are simultaneously closed 13 to auxiliary conductors 3-6 selectively energised at a remote switching point to electrically operate switches in the adapter to control the appliance. By assymmetry of the duct the adaptor can be fitted in only one way, an earthing contact 14 making first contact on entry. In Fig. 5 and in a second embodiment Figs. 19-28 (not shown), the pattern of energisation of four auxiliary conductors 3-6 required to switch the appliance is set by four push buttons, with a fifth button to manually change-over the switch. The duct in this embodiment Fig. 16 (not shown), has an insulating slotted member along only one side; this ducting may be coupled with maintenance of earth continuity, Figs. 17 and 29-41 (not shown), by cruciform and out-of-plane angled receptacles comprising screw-secured stacked conducting and insulating plates into which fit connectors carrying plate contacts for the power conductors and lighter bent-wire contacts for the auxiliary conductors, the connectors also plugging into the ends of the ducting. A doubleended linear connector is provided to couple ducts end-to-end.