baber/WOPTO huggingface dataset:
Patent GB-1230407-A (GB)
IPC: C02F11/12
Filed: 1968-04-23
Abstract: 1,230,407. Sludge disposal. INSTITUTUL PENTRU PLANURI DE AMENAJARE SI CONSTRUCTII HIDROTECHNICE. 23 April, 1968, No. 19201/68. Heading C1C. The sewage sludge from sewage purification plants whether of domestic, industrial or mixed origin is mixed with slurries of industrial waste solids, usually from " slurry pools and allowed to settle in a slurry pond.
Patent GB-1230971-A (GB)
IPC: G08C19/30
Filed: 1967-04-26
Abstract: 1,230,971. Protective arrangements. ENGLISH ELECTRIC CO. Ltd. 24 April, 1968 [26 April, 1967], No. 19132/67. Heading H2K. [Also in Division H3] A system for monitoring the state of a plurality of switches comprises a plurality of magnetic cores 25 of substantially rectangular hysteresis loop material and having input windings 24 connected by lines 8...23 to respective switches (not shown) which when closed enable partial switching currents to flow in the input windings 24. A pulse supply circuit 41 supplies a core switching signal to effect the switching of those cores 25 whose respective switches are closed, the core switching signal being delayed with respect to the initiation of the partial switching currents until any transients in the lines 8 ... 23 have ceased. The core switching signal comprises a first pulse for switching those cores to the input windings of which the partial switching currents are applied and a second pulse for switching back to the original state the cores switched by the first pulse, so causing the respective output windings to provide output signals via amplifiers 28 to registers 29. The switching signal may be preceded by a reset pulse which switches back to their original state any cores which may have been switched by transients. Protection against, or indication of, incorrect operation due to earth faults so provided by further cores 42, 43 with output windings 44, 45, amplifiers 46 and registers 47. The input winding 48 of the core 42 is connected in series with a transistor 49 to the supply source 51 for the switches. The input winding 52 of the core 43 is connected in series with a transistor 53 to the common connection of the input windings 24. Normally both transistors are conducting so that the cores 42, 43 are switched by the core switching signals from the circuit 41. An earth fault causes one or both transistors 49, 53 to cut-off so causing a processor (not shown), to which the registers 29, 47 are connected, to ignore the results of a monitoring operation or to indicate their inaccuracy. The lines 8... 23 may be connected to a plurality of groups of switches which, under the control of a switching device, are monitored in turns. The switches may be contact-making devices or semi-conductor devices.
Patent GB-1231662-A (GB)
IPC: G01M9/04
Filed: 1968-05-31
Abstract: 1,231,662. Wind tunnels. UNITED AIRCRAFT CORP. 31 May, 1968 [5 June, 1967], No. 26075/68. Heading B7G. [Also in Division F2] A wind tunnel model is supported from a foundation by means which transmit certain modes of vibration but not others: in particular, vertical vibrations of the model may be transmitted to the support and horizontal ones isolated therefrom. In Figs. 1 and 2, a model 10 is supported by three rods 12, 14, 16 each of which is connected to the model in the manner shown in Fig. 4, viz. by way of a universal joint 50 and a damper 38. The latter is a hydropneumatic piston-cylinder device the construction of which is shown in Fig. 7. The disposition of the dampers is such that, in Fig. 1, vertical vibrations of the model are transmitted to the foundation but horizontal ones are not. The dampers' frequency response may however be such that steady horizontal loads are transmitted. Fig. 8 (not shown) depicts a fluidpressure circuit in which all the dampers are interconnected for conjoint operation.
Patent GB-1232588-A (GB)
IPC: F23Q2/167
Filed: 1967-08-11
Abstract: 1,232,588. Gas-fuelled lighters. ALFRED DUNHILL Ltd. 8 Aug., 1968 [11 Aug., 1967] No. 37063/67. Heading F4F. A gas-fuelled cigarette lighter has a disposable fuel tank 9 detachably connected through a gas passage to a flow control valve 5 and to a burner valve 4 which opens and closes the gas passage and allows fuel to flow to a burner nozzle upon actuation of a spark mechanism 7 above the burner nozzle 6. The lower part of the gas passage comprises a hollow needle 23 and the tank 9 which may be of transparent plastics material is provided with an openig 39 which is connected with needle 23 by moving fuel tank 9 translationally into an operative position, whereupon the opening is sealed by a releasable membrane 40. The valves 4 and 5 are mounted in a bore 2 in a support 1 and the control valve 5 comprises a deformable tube 22 the crosssectional area of which is adjustable by a spigot 28, the position of which is determined by a screw-threaded adjusting member 32. The burner valve 4 comprises a piston 18 loosely fitted in a bore 11, the piston's lower surface housing a sealing washer 19 and the upper surface a burner boss 20. When piston 18 is raised the burner valve 4 is opened and gas can pass around boss 20 to be ignited. A lighter housing 8 is provided with an opening 48 to view the contents of the tank 9.
Patent GB-1238477-A (GB)
IPC: E21D15/54
Filed: 1968-11-22
Abstract: 1,238,477. Bases for hydraulic props. KLOCKNER-WERKE A.G. 22 Nov., 1968 [24 Nov., 1967; 16 March, 1968], No. 55440/68. Heading E1P. An hydraulic pit prop is tiltably mounted on its base 4 by guide means 1, 2 which have a ball-and-socket connection therewith and is secured thereto by two parallel spring elements 7. Each spring element 7 is secured to the guide means 1, 2 by being wedged in holders 5, 6 by a key 8 whilst the ends of the element 7 are retained in U-shaped holders 9, 10 by pins. For modified attachments of spring elements to guide means and to the base. Figs. 3 and 4 (not shown), should be referred to.
Patent GB-1251872-A (GB)
IPC: G01F1/58
Filed: 1969-07-18
Abstract: 1,251,872. Electromagnetic induction flowmeter. COMMISSARIAT A L'ENERGIE ATOMIQUE. July 18, 1969 [July 23, 1968], No. 36341/69. Heading G1N.  A device for measuring fluid-flow rate comprises a generally-known e. m. induction flowmeter 2 mounted on a tube 3 connecting the flowmeter to a pipe 1 in which fluid flows in the direction of the arrow F1, the tube being of smaller cross-section than the pipe and portions 3c, 3d of the tube lying within the pipe disposed radially of it, each being covered by a fairing 6, 7 respectively which is said to stabilize the rate of flow of fluid in the tube, the fairings being supported by a spindle 8. A length 3a of the tube connects at one end to the flowmeter inlet and at the other 3c bends through 90 degrees so that an orifice 4 faces upstream. The length 3b ends in an orifice 5 facing downstream. In an embodiment for measuring fluid-pressure Fig. 2 the inlet tube 3e to the flowmeter includes a throttle 20 and slots 15, 16 Fig. 5 in the tube length 3g communicate with slots 17, 18 in the fairing 19, the slots being disposed radially of the pipe. It is stated that the relation between the fluid-pressure and the flow-rate is quadratic. For use in a liquid-sodium cooled reactor the flowmeter is housed in two boron-steel shells (10, 11) Fig. 3 (not shown), containing argon.
Patent GB-1252550-A (GB)
IPC: H02K5/128
Filed: 1970-10-17
Abstract: 1,252,550. Cooling dynamo-electric machines. A. BLUM. 17 Oct., 1970, No. 49415/70. Heading H2A. The motor stator 15 of an electric motor-pump assembly is embedded in electrically insulating material 16 containing a heat conductor 20 which transfers heat generated in the stator to points where it may be dissipated by the pumped liquid. The insulating material 16 is preferably a synthetic plastics material and the heat conductor is preferably a cylindrical metal insert coaxial with the stator. The insert may be perforated and may have ribs or corrugations or fins to increase its surface area. Alternatively the insert may be of wire mesh. It may also, as shown, be formed integrally with an end portion 21 in contact with the pumped liquid and the portion 21 may have fins.
Patent GB-1259325-A (GB)
IPC: F16D25/0632
Filed: 1969-09-26
Abstract: 1,259,325. Friction clutches; securing clutch plates on hubs. R. JORN. 26 Sept., 1969 [27 Sept., 1968], No. 47617/69. Headings F2C and F2U. In a friction clutch wherein driving cones 10, 11 are moved axially apart into engagement with complementary surfaces on a two-part driven drum 15, 16, each cone is connected to a flange 2, 3 of a driving shaft 1 by a polygonal ring of rubber blocks 26 ... 33 secured to metal plates 4, 8, 19 ... 25 which are alternately secured to the flange 2 (or 3) and cone 10 (or 11). The rubber blocks may be initially precompressed. The clutch may be engaged by supplying pressure air to a servo 14 or bellows between the cones 10, 11. In a modification (not shown) a driving flange or flanges may be arranged between the driving cones.
Patent GB-1259362-A (GB)
IPC: H05K3/38
Filed: 1969-03-18
Abstract: 1,259,362. Copper clad laminate. WESTING- HOUSE ELECTRIC CORP. 18 March, 1969 [28 March, 1968], No. 14094/69. Heading B5N. A copper clad laminate 1 is made by applying to the roughened surface of a copper sheet 3 a coating of amino-substituted organo silane or organo siloxane having at least one aliphatic group 2 and bonding the coated copper sheet to a support 4 which comprises layer(s) of resin impregnated fibrous material. Suitable silanes or siloxanes have the general formula  in which R 1  is alkylene or alkylidene, R 2 , R 3  and R 4  are alkyl, alkoxy, aryl, aryloxy or aminosubstituted alkyl radicals, R 5  is H or alkyl, n is 0 or 1 and m is 0-25. γ-Amino propyltriethoxysilane is preferred, but others are also specified. The support layer(s) 4 may be made of glass cloth, asbestos, polyacrylate or polyester fibres impregnated with epoxy, glycidyl polyether, polyimide or polyamide-imide resins.
Patent GB-1265601-A (GB)
IPC: C22C35/00
Filed: 1970-04-01
Abstract: 1,265,601. Fe-Si - Mg master alloy. COMPAGNIE PECHINEY. April 1. 1970. No.15343/70. Headings C7A and C7D. A master alloy consists by weight of between 5 and 20% Mg between 40 and 75% Si between 0À3 and 1À2% B from 4 to 12% Ba the remainder apart from impurities being iron, with the proviso that Mg : B is from 15 to 25 and Mg : Ba is from 1 to 3. Nitrogen up to twice the boron content may also be present. Specified impurities are Ca and Al up to 2À5% in total. The alloy may be used to refine spheroidal graphite cast iron. If nitrogen is absent it may be added in the following forms: - a nitrate (e.g. NaNO 3 , KNO 3 ) + reducing agent (e.g. Al, Si) - organic nitrogen derivatives to give nitrogen e.g. Ca(CN) 2  - metal compounds containing -CN groups (such as ferrocyanide, ferricyanide).
Patent GB-1289815-A (GB)
IPC: F16H57/022
Filed: 1970-01-14
Abstract: 1289815 Rack-and-pinion gearing CAM GEARS Ltd 5 Jan 1971 [14 Jan 1970] 1803/70 Heading F2Q A rack-and-pinion assembly comprises a housing 1 in which a rack 6 is biased into engagement with a pinion member 2 by a resilient pad 7. The pinion member is rotatable in bearings 10, 11 which restrains it against radial movement and has teeth 4 in engagement with the rack 6 located between the bearings. An adjustable screw member 8 securable by a lock nut 9 engages the end 5 of the pinion shaft through a ball 23 and loads the pinion member against the bearing 11 which comprises a groove 21 in a shaft 3 and an outer race 14 retained in the housing 1 by a circlip 15. In a modified construction the bearing 20 is replaced by a plain bearing.
Patent GB-1297818-A (GB)
IPC: A01D90/00
Filed: 1970-10-30
Abstract: 1297818 Tractors TEXAS INDUSTRIES Inc 30 Oct 1970 [3 Nov 1969] 51850/70 Heading B7H [Also in Division B8] A mobile crop pick-up device is mounted on a tractor 1 and comprises a mechanism 30 which cuts and collects two rows of maize which crop passes through cutting drum 34 to be delivered into loading space 3 through member 35 and guide flap 37. The flap 37 is arranged to deliver the crop in the vicinity of ejector 38 which comprises a blower 40, member 43 and guide flap 78. The ejector 38 feeds the crop into the loading space 82 of trailer 83 until it is filled and is then switched off, enabling the loading space 3 to be filled in its turn. Feeding of the crop to the blower 40 is assisted by a discharging mechanism 44 comprising three rotatable reels 45, having tines, and an auger 46. The trailer 83 has a similar discharge arrangement of reels 87 and auger 88. When both spaces 3, 82 are filled the device is driven to a discharge location and the spaces discharged through members 47, 89. The loading space 3 can be removed from the tractor 1 by extending four vertical jacks 11, swinging adjustable legs 50, 56 into a vertical position, retracting the jacks 11 after disconnecting pins 14 and driving the tractor 1 away. Fig. 8 shows how the driver's cabin 25 may be positioned at the front of the tractor 1, but offset, or in line at the rear, being pivoted on an arm 95 itself pivoted to the tractor 1 at the side thereof. In a modification, Fig. 6 (not shown) a three-row crop pick-up mechanism is used, while the ejector mechanism transferring the crop to the loading space 82 is external to the loading space 3.
Patent GB-1302708-A (GB)
IPC: B65D83/14
Filed: 1970-01-06
Abstract: 1302708 Pressurized dispensing containers GILLETTE CO 6 Jan 1970 4646/72 Divided out of 1302707 Heading F1R In a double compartmented pressurized dispensing container each compartment has a dip tube leading to a mixing discharge valve and the bore and length of the dip tubes are selected to obtain a pre-selected rate of flow from each compartment. The valve and container are as described in the parent Specification.
Patent GB-1304306-A (GB)
IPC: A47K13/02
Filed: 1971-08-20
Abstract: 1304306 Seat and cover assemblies for sanitary closets ASTRA SA INDUSTRIA E COMERCIO 20 Aug 1971 39259/71 Heading E1C A' seat and cover assembly for a sanitary closet is constructed from resilient plastics sheet material moulded to provide upper and lower halves of a hollow seat 1 and a hollow cover 2, the cover being provided with ears 12 by which it is mounted on pivot pins 3 carried by the seat and which themselves carry nut-and-bolt assemblies 4 for securing the seat and cover assembly to the closet bowl. The upper and lower halves of the seat are welded together about their inner and outer peripheries in an airtight manner so that the air trapped within the seat is sealed and may act as a cushion when a user sits on the upper surface 6 of the seat which then takes up the position 6'. The space within the seat may be filled with a foamed plastics material. The cover is similarly constructed. Suitable plastics materials are said to be polyethylene, polypropylene, polyvinyl chloride and other synthetic thermoplastic resins.
Patent GB-1307740-A (GB)
Title: Electrically insulating mounting for an electrically conductive member
IPC: F16B19/10
Filed: 1970-10-21
Abstract: 1307740 Eyelets PLESSEY CO Ltd 23 July 1971 [21 Oct 1970] 49959/70 Heading F2H [Also in Divisions B3 and H2] A terminal 8 is insulatedly secured to an apertured conductive member 4 by means of a bush 1 of thermoplastic cold-flowable material, the bush comprising a hollow body 2 which is bevelled 6 at one end 2a and caused to spread without rupture over the surface 4b of the member to form a flange (10). The bush may be of polyamide with the inclusive angle 7 of the bevel from 60 to 120 degrees and have an integral flange 5. The spreading may be effected by a nut 9 screwed on the terminal. In an alternative embodiment the body has no integral flange 5 but is bevelled at both ends which are spread radially outwards on tightening by the nut and by the terminal head 8.
Patent GB-1307853-A (GB)
Title: Filter press plates
IPC: B01D25/21
Filed: 1969-07-09
Abstract: 1307853 Filter press plates DAVID MOSELEY & SONS Ltd 6 July 1970 [9 July 1969] 34497/69 Heading BID A filter press plate 61 comprises a moulded body with two opposed recesses, the floor of one being provided with projections 61d, 61e and the other being bridged by an inflatable membrane 62 whose outer surface is ribbed at 62a. Two sheets of filter medium 64 are located between each pair of plates to define therebetween a chamber 65 into which slurry is pumped via ports (61k) in one corner of the plates (Fig. 7, not shown), filtrate passing through medium 64 and via passages 61h and 62b into grooves 61g, 62c in the plate and membrane and thence into aligned ports 61j. Air or water is pumped into chambers 63 via ports (61l) and passages (61m) (Fig. 9, not shown), to inflate the membranes and squeeze the filter cake. The plate and membrane may be made of a large number of materials exemplified; the illustrated plate is rubber and reinforced by sheet 61c.
Patent GB-1308554-A (GB)
Title: Fluid flow measuring apparatus
IPC: G01P5/24
Filed: 1970-06-29
Abstract: 1308554 Ultrasonic fluid flowmeter YOGOGAWA DENKI SEISAKUSHO KK 29 June 1970 31294/70 Heading H4D A conduit through which fluid flows has a rod therein generating Karman vortices; also provided are an ultrasonic transmitter and receiver and a counter for determining the number of vortices produced by the rod. In a first embodiment, Fig. 3, a cylindrical rod 1 generates vortices 2, which flow downstream through the path of the ultrasonic waves emitted by transducer 4. Due to the components of the fluid velocity in the vortex along the wave path, the transit time of the ultrasonic pulses changes as each vortex crosses the path. Thus the transmitter 4, receiver 5 and pulse generator A which operate in a "sing-around" mode produce a train of pulses, P 0 , of varying p.r.f. Changes in p.r.f. from the mean one detected by demodulator DM and counted by counter CO. Since the frequency of the vortex emission is proportional to the flow rate, the counter may be calibrated accordingly. In a second embodiment, Fig. 6A, a plate 6 is rotatably mounted on a rod 7 downstream of the generating rod 1. The transmitter 4 and receiver 5 are arranged such that the plate interrupts the ultrasonic beam when in a position parallel to the fluid flow F. As the vortices pass the plate 6, it is deflected and an ultrasonic pulse is received and counted. In a further embodiment, a vibrating plate is again used and the transmitter is arranged to direct pulses against the face thereof and the receiver receives reflected pulses. As the plate vibrates due to a passing vortex, the transit time of the pulses changes as in the Fig. 3 embodiment above. Instead of a solid cylinder, the rod may have holes transverse to the flow direction (Fig. 10A, not shown) and may also have two intercommunicating cavities portioned along the flow direction (Figs. 11A-11D, 12A-12D, not shown). These modifications aid the production of the vortices.
Patent GB-1319051-A (GB)
Title: Gas igniters
IPC: F23Q3/00
Filed: 1969-04-15
Abstract: 1319051 Piezo-electric igniters KIGASS Ltd 15 July 1970 [15 April 1969] 19105/69 Heading F4F [Also in Division H2] In a gas igniter comprising at least one piezo-electric element 26 in abutment with an anvil 25 adapted to be struck by a manually actuated, spring-loaded hammer 37, the hammer is carried by a leaf-spring 38 and a trip mechanism in the form of a reciprocable, spring-loaded rod 39 is provided for stressing and releasing the spring. As shown, the spring is U-shaped, one limb being attached to a flange 12 on a two-part body 10 (13) and the other limb carrying the hammer at its outer end. The rod 39 is supported by the body and urged by a spring 42 to the position shown. Pressure on a push-button 40 at one end of the rod causes a pin 41 at the other end to withdraw the hammer from the anvil against spring 38 until the latter spring has flexed sufficiently for the hammer to clear the end of pin 41 whereupon it returns to strike the anvil. On release of the push-button, the pin 41 rides along a conical surface on the hammer, at the same time twisting the spring 42, and finally snaps behind the hammer to the re-set position shown. Two piezo-electric elements 26, 28 are provided which are enclosed in an insulating casing 20 together with the anvil 25, the casing being loosely supported in the body part 10 and loaded by a spring 44 so as to press the anvil and elements 26, 28 against an intertia block 34. A central terminal 27 between the elements 26, 28 is engaged by a spring-loaded contact 30 on the end of a conductor leading to a spark gap adjacent a burner.
Patent GB-1322723-A (GB)
Title: Fibrous materials
IPC: C03C13/00
Filed: 1969-10-27
Abstract: 1322723 Fibrous materials IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Oct 1970 [27 Oct 1969] 52447/69 Heading C1A A process for producing a fibrous material comprises the steps of (i) dispersing fibrils having at least one dimension not greater than 0À1 microns, in a liquid medium containing substances capable of forming an inorganic residue; (2) aligning the fibrils; and (3) coagulating the aligned fibrils and removing at least part of the liquid medium. The fibrils which may be of inorganic or organic composition, and preferably have an axial ratio of at least 10 : 1. The liquid in which the fibrils are dispersed may be a liquid, e.g. water or aqueous suspensions or solutions which is removable substantially or completely, for example by evaporation. The matrix is preferably a refractory material or one that can be converted to such. Desirably the bond formed between the fibril and the substance is a ceramic bond is stable to heating above 1000 C. The bonding between the fibril and the matrix is especially effective when the fibril and matrix are chemically the same or are crystallographically isostructural with each other. The fibrils are preferably aligned along the axis of filaments formed from the fibril dispersion. Alignment may be effected by forming the filaments by a process of flow, preferably streamlined, of the fibril dispersion through a tube of suitably shaped orifice, e.g. spinneret. The filaments may also be formed by a process of drawing. Optionally a thickening agent, e.g. methyl cellulose may be included in the fibril dispersion to aid in forming filaments. Preferably the dispersion has a viscosity from 2 to 5000 poise. The fibrils may be coagulated after they have been aligned or during the aligment process. Coagulation can be brought about by heating the dispersion preferably to at least 80 C. or by removal of a portion of the dispersing liquid, e.g. evaporation or in the case of water by adding a dehydrating agent such as acetone. Examples of the fibril are Al 2 O 3 , SiO 2  and γ-Fe 2 O 3  of the dispersing liquid AlCl 3 , AlOCl, aluminium acetate, aluminium formate, silicic acid, zirconium chloride, magnesium chloride and magnesium acetate all in water and examples of the bonding matrix being Al 2 O 3 , SiO 2 , MgO and carbon.
Patent GB-1325471-A (GB)
Title: Externally meshing screw rotor compressor
IPC: F04C29/00
Filed: 1970-10-29
Abstract: 1325471 Screw rotor compressors KUHLAUTOMAT VEB 29 Oct 1970 51585/70 Heading F1F In an externally meshing screw rotor compressor, both axial and radial i.e. eccentric thrust movements of the screw rotors 4 are opposed i.e. compensated by hydraulic pressure supplied via duct 11 to a piston chamber 9, the axial thrust being absorbed by the reaction force of the hydraulic pressure on a piston 2 fast on the screw rotor 4 whilst the radial movements are opposed i.e. compensated by the resulting radial pressure drop at the increased clearance side of compensating chamber 15, formed by a floating bush 13, resulting from the radial i.e. eccentric movement of the screw shaft which allows the resulting higher diametrically radially opposing pressure in the compensating chamber 15 to counteract and thus compensate i.e. oppose the eccentric movement of the screw shaft 4. In Fig.2 (not shown) the former floating bush of Fig.1 is fixed and the piston, fast on the screw rotor 4, is formed of two parts one of which functions in a similar manner to the floating bush of the Fig.1 embodiment when radial i.e. eccentric movement of the screw shaft 4 causes a radial pressure imbalance in the compensator chamber (12).