baber/WOPTO huggingface dataset:
Patent GB-1304554-A (GB)
IPC: G09F9/30
Filed: 1970-11-06
Abstract: 1304554 Liquid crystal display device RCA COPORATION 6 Nov 1970 [6 Nov 1969] 52845/70 Heading G5C [Also in Division H4] A liquid crystal display device has glass substrates 12, 14, conducting layers 26, 44, a dielectric layer 36 and a film 20 of liquid crystal material. The conducting layer 26 is divided into two sections (30, 32), Fig. 3 (not shown), by opening 28, and the layer 44 is divided into two sections (48, 46), Fig. 5 (not shown), by opening 50. The dielectric layer has a gap 38 in the form of a vertical bar. When light, e.g. from a fluorescent bulb 78, is passed through the device, three different images, which appear dark against an illuminated background, are formed as follows: image having the shape of section 30 is formed by application of an A.C. voltage between section 30 and sections (46, 48), this voltage switching the liquid crystal material adjacent section 30 from the transparent to the light scattering state. Similarly an image having the shape of gap 38 is formed by application of a D.C. voltage between sections (30, 32) and sections (46, 48), and an image having the shape of section (48) is formed by application of an A.C. voltage between sections (30, 32) and section (48).  An illuminated image against a dark background can be obtained by having a specularly reflective surface on the substrate 14 and having the light source on the same side of the device as the viewer 76 in a position such that no light is reflected in the direction of viewing when the film 20 is in its transparent state. In an alternative embodiment, Fig. 8 (not shown), more than one image is defined in the layer 26.
Patent GB-528635-A (GB)
Abstract: 528,635. Valves; spray-producers. SERSHALL, S. H. May 11, 1939, No. 14022. [Classes 69 (iii) and 135] A slide valve for controlling liquids has the valve member held in contact with a resilient washer arranged around the inlet orifice and projecting beyond the plane of the part in which it is housed so that it can be distorted by inlet pressure to provide an effective seal. In the form shown in the Figure the valve slide 9 has an actuating button 9c at each end one of which may be serrated so that they can be distinguished by sense of touch and is held, together with an adapter 12 in a transverse slot in a body part 8 by an internally threaded nut 14. The body and adapter are each provided with square section resilient packing rings projecting above the plane of the part in which they are housed. In a modification the adapter and nut are replaced by a flared spraying nozzle and the valve plate has alternative apertures to give a round or flat jet.
Patent GB-1331955-A (GB)
Title: Capillary soldering and desoldering implement
IPC: B23K3/02
Filed: 1970-11-10
Abstract: 1331955 Soldering W S FORTUNE 10 Nov 1970 [19 Jan 1970 18 March 1970] 53417/70 Heading B3R A soldering-desoldering tool comprises a metal heating bit having capillary slot means opening on to the working surface thereof, and having a heating shaft receiving bore extending from its end opposite the working surface, a heating shaft being located in the bore. In an electrically heated tool 10, Fig. 1, the heating element is disposed in a shaft 14 on which fits an axially bored longitudinally split tip 18 held by a spring clip 26, the tip being of brass or steel plated with electroless nickel. The tapered forward end 29 of the tip has a sloping working face 32 and two slots 34 arranged at right angles entending from the face 32. In use the face 32 is held on a circuit board and solder is drawn into the slots 34, which solder may be removed by tapping, by an air blast or suction from an outside source. Heat radiating fins may be provided on the rearward end of the tip and marks may indicate the temperature obtainable when the end of the shaft is opposite such marks. The working face may be provided with a notch to enable lifting of a lead wire. A tip 82, Fig. 6, has a chisel end in which a number of longitudinally arranged capillary passages 84 are cut and an inspection hole 88 is provided to view the end of the shaft and for cleaning A retainer clip 94 is provided and it may have radial cooling fins. The end of the tip may be smaller than the remainder or larger as shown in Fig. 9, when the working end 110, solid or thin walled, has a large number of slots. When the tool is to be used for soldering the capillary passages are filled with solder. Reference has been directed by the Comptroller to Specification 1,162,634.
Patent GB-1415532-A (GB)
Title: Phosphonous acid derivatives
IPC: C08L27/00
Filed: 1972-11-21
Abstract: 1415532 Phosphonous and thiophosphonous acid esters SANDOZ Ltd 21 Nov 1972 [24 Nov 1971] 53681/72 Heading C2P [Also in Divisions C3 and D1] Novel compounds of Formula I where n is 0 or 1, X is -CH 2 -, -O- or -S-, Y 1 , Y 2 , Y 3  and Y 4  are -O- or -S-, R 1 , R 2 , R 3  and R 4  are hydrocarbyl containing up to 20 carbon atoms and consisting of one or more aromatic and/or saturated aliphatic and/or alicyclic units, or are hydrogen, and the rings A and B may be further substituted by 1 or 2 alkyl groups, and salts with inorganic cations of those compounds in which any of R 1 , R 2 , R 3  and R 4  are hydrogen may be prepared by reacting a compound of Formula II where Hal is halogen with compounds of Formulae III and IV and, if n is 1, with compounds of Formulae V and VI and optionally, where any of R 1 , R 2 , R 3  and R 4  are hydrogen, converting the product into a salt. The starting materials of Formula II may be prepared by reacting a suitable diphenylmethane, diphenylether or diphenyl thioether with a phosphorus trihalide. The compounds of Formula I may be used as stabilizers for organic materials.
Patent GB-1083210-A (GB)
Title: Radiation image pick-up tube and system
IPC: H01J31/26
Filed: 1965-12-21
Abstract: 1,083,210. Image pick-up tubes. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 21, 1965 [Jan. 12, 1965], No. 54071/65. Heading HID. An electron image derived from a light or an X-ray image at a photocathode 22 is directed on to a target 50 comprising a continuous insulating layer exhibiting the property of transmissive secondary electron conduction to establish a charge image on the far side of the target and the far side of the target is scanned by an electron ray generated at a photocathode 30 by a flying-spot to read out the charge image. An electromagnetic or permanent magnet focusing system is provided for the electrons on both sides of the target. The target comprises a porous coating of potassium chloride, magnesium chloride or magnesium oxide, e.g. 25 microns thick, on an aluminium signal layer, 500 Angstroms thick. A support layer of aluminium oxide, 1000 Angstroms, may be provided. The target surface is stabilized at the potential of the scanning ray photocathode while a small positive potential is applied to the aluminium layer to establish a field of less than 10<SP>4</SP> volts per centimetre across the porous layer.
Patent GB-1312907-A (GB)
Title: Double wall combustion chamber
IPC: F23R3/08
Filed: 1971-11-22
Abstract: 1312907 Gas turbine combustion chambers WESTINGHOUSE ELECTRIC CORP 22 Nov 1971 [13 Jan 1971] 54125/71 Heading F1L A gas turbine flame tube is formed from axially overlapping smooth tubular and circumferentially corrugated wall sections 54, 56 respectively, the ends of the corrugated sections being disposed about midway between the ends of the smooth sections. The overlapping sections 54, 56 are secured together by spot welds 69, 70 and define axially extending passages 72, 74 for cooling air E, F, G, primary air being admitted through apertures 44 in the sections. The flame tube is one of an annular array disposed within an annular casing (19), Fig.1 (not shown) to which air is supplied from a compressor (12) via a diffusor (17), the air undergoing reverse flow on leaving the latter.
Patent GB-1031509-A (GB)
Title: Improvements in or relating to implements for spreading powdered or granular materials over the ground
IPC: A01C17/00
Filed: 1962-11-27
Abstract: 1,031,509. Centrifugal distributers. C. VAN DER LELY N.V. Nov. 27, 1962 [Dec. 20, 1961], No. 54200/65. Divided out of 1,031,505. Heading A1D. The subject matter of this Specification is the same as that of Specification 1031505 but the claims differ.
Patent GB-1407037-A (GB)
Title: System for magnetically recording and reproducing television signals
IPC: H04N17/06
Filed: 1972-11-23
Abstract: 1407037 Colour television signal recording SONY CORP 23 Nov 1972 [26 Nov 1971] 54216/72 Heading H4F A colour television signal magnetic recording system of the type described in Specification 1,407,036, in which the luminance signal frequency modulates 9 a carrier and is recorded with alternate lines (gate 20) of the chrominance signal the subcarrier of which has been shifted 17 to 560 kHz, characterized in that to eliminate the high frequency luminance signal components in the separated 13 chrominance signal, this latter signal is fed to the frequency converter 17 via a comb filter in which it is subtracted 15 from itself delayed 16 by one line period. During playback from magnetic tape 5 (or disc) the frequency reconverted 32 chrominance signal which exists only during alternate line intervals is delayed 16 by one line period and combined 15 with the non-delayed signal to produce a continuous chrominance signal at output 44. The same delay 16 is used in the recording and playback made, the subtracter 15 reintroducing the 180 degree line phase shift (¢ line offset) in the played back NTSC signal. During the recording mode the signal being recorded may be monitored since the chrominance signal passes via switch 30 and devices 31, 32, 36 and switch 43 to output 44 while the luminance signal passes via switch 24 and devices 25-29 to output 44, both signals also passing via switch 23 to the rotating recording heads 2 and 3.
Patent GB-1173805-A (GB)
Title: Radial-Flow Fans and Blowers
IPC: F04D17/16
Filed: 1967-11-29
Abstract: 1,173,805. Vapour extraction hoods. HEIDOLPH-ELEKTRO K.G. 29 Nov., 1967 [22 Dec., 1966; 10 Feb., 1967; 13 Oct., 1967], No. 54338/67. Heading F4V. [Also in Division' F1] In a kitchen store hood 1, Fig. 2, having inlet filters 7 and an organizing lamp 8, a centrifugal fan unit (see Division F1) has a hollow impeller 18 with its driving motor arranged eccentrically therein to cause the flow to leave the impeller in a preferred direction. The fan unit can be bolted to the hood in one of two positions angularly displaced by 180 degrees about the rotational axis, to cause the impeller to either recirculate air through slots 14 back into the kitchen or deliver the air through one of two outlets 15, 16 to an extraction flue. In another arrangement, Figs. 6 to 8 (not shown), the fan unit is mounted in a housing having an outlet (36) for air extraction from a room and closable outlets (42) for recirculating air back into the room. The housing can be built into a kitchen extracting or circulating hood.
Patent GB-1215458-A (GB)
Title: Treatment of textile fibers with soluble polymeric alcohol derivatives
IPC: D06M15/01
Filed: 1967-11-30
Abstract: 1,215,458. Coated fabrics. TEE-PAK Inc. 30 Nov., 1967 [8 Dec., 1966], No. 54481/67. Heading B2E. [Also in Divisions C3 and D1] Cotton or synthetic textile fibre fabrics are treated with a solution prepared by redissolving a powdered material obtained by spray drying a decausticized solution of a polymeric alcohol xanthate the spray dried polymeric alcohol xanthate being a degree of substitution greater than 3% and a pH less than 13 and being substantially free of salts derived from free alkali in the solution and then treated chemically or by heat to insolubilize a polymeric alcohol or derivative thereof from the solution on the fibres, to impart thereto a crease resistant, antistatic or soil resistant finish. The fabrics may comprise cotton, nylon, polyester, acrylic, cellulose acetate, cellulose ether, viscose rayon or glass fibres. The xanthate solution may be decausticized viscose, amylose xanthate, starch xanthate, polyvinylalcohol xanthate or polyallyl alcohol xanthate and may be insolubilized on the fibres by regeneration by heating or treatment with acid, precipitation as a xanthide film by oxidation or treatment with a polyvalent metal cation. Adhesion of the polymeric material to the fibres may be improved by pretreating the fibres with an epoxy or isocyanate adhesive or by applying the decausticized xanthate solution in admixture with an epoxy or isocyanate adhesive, suitable isocyanates being diphenylene diisocyanate, tolylene diisocyanate, phenol blocked tolylene diisocyanate, dianisidine diisocyanate and diisocyanate of dimerized linoleic acid. Creases imparted to the fabrics prior to insolubilization are rendered permanent.
Patent GB-1206948-A (GB)
Title: Improvements in or relating to nail and like magazines for fastener driving tools
Inventor: HILLIER MALCOLM EDWIN
IPC: B25C1/00
Filed: 1966-12-07
Abstract: 1,206,948. Nailing and stapling tools. GASTON E MARBAIX Ltd. 1 Dec., 1967 [7 Dec., 1966], No. 54725/66. Heading B4C. [Also in Division B8] A pneumatically-actuated tool for driving fasteners, such as nails 3, into a workpiece comprises a means 6, 8 for feeding the nails one at a time into the driving position, the means being mechanically operated by an actuator which is itself moved by movement of the tool towards and away from the workpiece. The nails 3 are joined by tapes in the form of a belt and fitted, in spiral fashion, into a magazine 1, the leading nails being guided in a shoot 4. The feeding means includes a pair of pawls 6 mounted on a bar 8 and urged into the path of the nails by leaf-springs 7. The bar is guided by rods 12 moving in sleeves 13 and connected to a bell-crank 9. In operation, upon moving the tool towards a workpiece, a roller 17 on the bell-crank first contacts the workpiece, thereby moving the bar rearwardly against the action of spring 14 so as to cause the pawls to ride over the leading nail; spring-loaded pins (20, Fig. 2) prevent rearward movement of the nails. Upon release of the tool from the workpiece, the spring 14 moves the bar forwardly so that the pawls move the leading nail into the driving position. In the modification shown in Fig. 4, a pair of spring-loaded pawls 61, 62 are mounted on a pivoted lever 60 which is actuated, via a pin 66, when the end 65A of a member 65 is pressed against a workpiece; the member 65 is guided by means of rollers 64 and is also arranged to actuate a valve 43. In order to prevent the tool being actuated after the last nail is used, the lever 60 moves further forward so that a catch 60B thereon engages with a latch 69. After the tool has been reloaded by pivoting the magazine about a pin 59, the latch is disengaged manually.
Patent GB-1201059-A (GB)
Title: Optical projector
Inventor: HUTCHINSON MILLER REESE JR
IPC: G03B21/53
Filed: 1967-12-01
Abstract: 1,201,059. Slide projectors; focusing. EASTMAN KODAK CO. Dec.1, 1967 [Dec. 5, 1966], No.54740/67. Heading G2A. A device for automatically re-focusing a film or slide projector when the film or slide "pops" comprises a venturi chamber 26 formed by a curved transparent member 20 and the transparency 25, a jet of air being directed from blower 29 through the chamber 26 and the variation in air pressure at the throat 26t of the venturi due to movement of the transparency when it "pops" being used to move the slide for re-focusing. In one form of the device, chamber 26 is inter-connected at 26t with a closed chamber 21 defined on the opposite side of the slide by glass 22 and gasket 23. The resilience of gasket 23 permits slide movement to equalize pressure, this movement restoring the focus. In another form, the slide moves freely on runners and air leaving the venturi is passed to a pneumatic servo-chamber having a flexible wall whose movement due to pressure changes shifts the slide through a mechanical linkage to restore focus.
Patent GB-1073567-A (GB)
Title: Metal-polymer compositions
Inventor: SAUNDERS FRANK LINWOOD
IPC: C08K3/08
Filed: 1965-12-31
Abstract: Compositions comprise a copolymer of ethylene and 2 to 25 weight per cent of an ethylenically unsaturated aliphatic carboxylic acid having 3 to 8 carbon atoms or an anhydride or partial ester of such acid wherein the acid moiety has at least one carboxyl group and the alcohol moiety contains 1 to 20 carbon atoms, said copolymer having interspersed therein finely divided metal particles.  The copolymers may be derived by random or graft copolymerization of acidic monomers such as acrylic, methacrylic, crotonic, fumaric, maleic or itaconic acid, or polycarboxylic anhydrides or partial esters such as maleic anhydride or monomethyl or monoethyl maleates or fumarates. Specified metals are aluminium, lead and iron. Minor proportions of non-metallic fillers, e.g. carbon black, may also be present and the compositions may be moulded to form cups, electromagnet cores, machine parts and housings. Examples describe compositions of ethylene/ acrylic acid graft copolymers with (1-4 and 9 aluminium, (5) lead, (6) iron, (7) aluminium and carbon and (11) aluminium and chopped glass fibre stands; and of ethylene/acrylic acid random copolymers with (8 and 10) aluminium.
Patent GB-1410347-A (GB)
Title: Device for spraying diecasting moulds
IPC: B22C23/02
Filed: 1972-12-05
Abstract: 1410347 Spray producers KLUBER LUBRICATION MUNCHEN KG 5 Dec 1972 [4 Feb 1972] 56017/72 Heading B2F A device for spraying diecasting moulds comprises a spray-material conduit 2, a compressed air conduit 1, a spool valve in the conduit 2 and a valve 6 in the conduit 1, the valve 6 being disposed in the path of movement of the spool 4, the valves being so arranged that upon movement of a trigger 9 the compressed-air valve 6 is opened first. The spray material is aspirated at a nozzle 11 by the compressed air, and the device may be provided with two spray nozzles (14, 15), Figure 2 (not shown), for spraying in opposite directions. The device is provided with mounting rings 16, 17.
Patent GB-1447679-A (GB)
Title: Voltage controller
IPC: G05D23/24
Filed: 1973-12-04
Abstract: 1447679 Automatic voltage control XEROX CORP 4 Dec 1973 [6 Dec 1972] 56226/73 Heading G2R A circuit for supplying a regulated alternating voltage to a heater for a fuser in an electrostatic copier, includes a device which cuts off the voltage supply for a predetermined time interval when the heater voltage reaches a predetermined level. As shown in Fig. 3, a fuser 40 is heated by a lamp 44 connected in series with controlled rectifiers 46. The voltage across the lamp is sensed by a transformer 51 which charges a capacitor 60 until a predetermined voltage level is reached at one input 65 of a switching amplifier 66. The predetermined voltage is set by a reference voltage on line 58. When this level is reached, the output of the amplifier turns off the rectifiers 46 for a time interval which is determined by the time constant of capacitor 70 and associated resistors. At the end of this interval, the amplifier 66 switches to its other state and the rectifiers 46 again become conductive. In the meantime, capacitor 60 has discharged through a resistor 62, so that the regulating cycle begins again. The fuser housing temperature may be monitored by a thermistor (45), Fig. 2 (not shown).
Patent GB-1298802-A (GB)
Title: Means for feeding articles from the bottom of a stack thereof
Inventor: BEEDHAM DAVID WILLIAM
IPC: B65H3/24
Filed: 1968-12-02
Abstract: 1298802 Feeding sheets; collating apparatus KODAK Ltd 18 Dec 1969 [2 Dec 1968] 57106/68 Heading B8R Articles, e.g. pre-folded envelopes, are fed from the bottom of a pile contained in magazine 11 by a reciprocable slide 16 which is arranged to be stopped or started in synchronism with the apparatus with which the feeder is associated. In the embodiment the articles are fed to collating containers 17 of a packaging machine, the containers being arranged to move past the feeder (and several other feeders which may not necessarily be of the kind illustrated). To ensure synchronization of the feeder and the movement of the containers 17 both are powered from a main shaft 19. Slide 16 is powered from the shaft 19 by a cam 18 and follower 20 on lever 21. A spring 26 biases the follower into engagement with the cam. When it is desired to stop or start the feeder a pneumatic cylinder 28 is actuated to extend or retract piston 29 into or out of engagement with arm 25, causing follower 20 to be lifted away from or lowered on to engagement with cam 18. The action of cylinder 28 is controlled by a valve 31 operated by a solenoid 32. This solenoid is controlled from switches which when set are actuated at the appropriate moment in the machine cycle by means (e.g. magnets) mounted on main shaft 18. Slide 16 may act as a pusher feed through shoulder 48. The articles are supported on prongs 49 (which may be provided with vacuum means) and delivered to the containers 17 by engagement of their trailing edges with retainer 47. Stationary guides 50 and an adjustable throat 13 are provided.
Patent GB-1292848-A (GB)
Title: Arrangement for holding together a turbine rotor and other aligned members of a gas turbine
Inventor: ANDVIG TORE A
IPC: F01D5/02
Filed: 1969-11-24
Abstract: 1292848 Coupling turbine rotor elements KONGSBERG VAPENFABRIKK AS 24 Nov 1969 [25 Nov 1968] 57453/69 Heading F2U In a gas turbine a turbine rotor element 1 is connected to at least one other rotative element 6, 7 by a part 12 extending coaxially through the element(s) 6, 7 to urge them axially towards the element 1 to which the part 12 is connected by a portion 14 having a heat insulating core 16 (e.g. an air pocket), the elements 1, 6, 7 being centred by means (e.g. teeth 17) other than the part 1, the length of the portion 14 and its clearance in the element(s) are such that a substantial part of the heat supplied from the turbine rotor is transferred to the element(s) 6, 7.
Patent GB-1431900-A (GB)
Title: Buckles
IPC: A44B11/22
Filed: 1972-12-14
Abstract: 1431900 Buckles J W L NICHOLS 21 Feb 1974 [14 Dec 1972] 57696/72 Heading E2A A plastics, rubber or metal strap buckle, e.g. for shoes, comprises a rigid base 10 which may be rivetted or glued in place, and a flexible jaw 11 spaced from it by a converging passageway 13 receiving a strap 18 having a series of apertures into which teeth 14, 15 engage. The tooth 15 on the flexible part is in advance of the other so that tension in direction A increases the grip. The strap is released by pulling up the resilient jaw 11. As shown, the two teeth each extend part-way through the strap, but in a modification, (Fig. 4, not shown) the teeth may be spaced so as to engage different holes, in which case they extend right through the strap. The strap-holes may be tapered.