baber/WOPTO huggingface dataset:
Patent GB-1146599-A (GB)
Title: Improvements in or relating to vehicle steering column arrangements
Inventor: JENKINS PETER GORDON
IPC: B62D1/16
Filed: 1965-09-13
Abstract: 1,146,599. Bearings; impregnating. GEORGE ANGUS & CO. Ltd. 8 Sept., 1966 [13 Sept., 1965], No. 38948/65. Heading F2A. A shaft of a vehicle steering column is supported in bearing bushes made of microcellular polyurethane having a Shore ("A" Scale) hardness of between 30 and 60 degrees and a density of between 0À25 and 0À6 gms. per c.c. The bush may be a "wrapped" type, of parallelogram shape in the unfitted condition, of cylindrical shape, and may be impregnated with oil or grease.
Patent GB-1358501-A (GB)
Title: Process for the preparation of porous membranes
IPC: B01D53/22
Filed: 1972-08-22
Abstract: 1358501 Alumina membranes MONTECATINI EDISON SpA 22 Aug 1972 [24 Aug 1971] 39038/72 Heading C1A An alumina membrane is produced by depositing on a sintered porous alumina support a layer of alumina by filtering through the support submicronic particles of alumina and/or aluminium hydrate in an aqueous suspension containing at least one hydrophilic ether of cellulose, and calcining the product when dry to eliminate combustible matter before sintering in air at >900 C. The support may be tubular (filtering being effected outwardly) or a disc. The filtering and calcination process may be repeated. The calcined, deposited layer may be compacted by the application of fluid isostatic pressure prior to sintering. The preferred cellulose is a methylcellulose. The preferred temperatures are 500- 800 C. for calcination and 950-1250 C. for sintering.
Patent GB-876371-A (GB)
Title: Improvements in or relating to safety devices for elevator doors
IPC: E05B45/06
Filed: 1957-12-16
Abstract: 876,371. Photo-electric &c. control. SCHWEIZERISCHE WAGONS-UND AUFZUGERFABRIK A.G. Dec. 16, 1957 [Dec. 18, 1956], No. 39095/57. Class 40(3) [Also in Groups XXV and XXX] Movement of a lift is prevented, unless the doors of the shaft are closed, by photo-electric, radio-active, electromagnetic or electric valve means which is operated by the closure and/or locking of the shaft doors to control the safety circuit of the lift motor. In an arrangement which is operated when the door is closed, a lamp 4, Fig. 1, and phototransistor 5 are mounted in the door frame 2 and a light guide 7 or a reflector is mounted on the door 1 so that light falls on the transistor when the door is closed. In modifications, Figs. 3, 4, 5 and 16 (not shown), the elements mounted on the door frame and door are respectively (1) two coils, one of which is energized, and a two-part core, (2) a discharge tube and a conducting plate which causes it to strike, (3) a Geiger counter and a radio-active source, (4) a ferrite member with a winding, and a permanent magnet. In an arrangement which is operated when a lock bolt is projected and the door is closed, a -sliding bolt 23, Fig. 7, is coupled to a feeler pin 29 through a driver 32 and a spring 33. A screen 28 on the driver 32 is interposed between a lamp 26 and a photo-transistor 27 carried by the feeler pin 29, when the bolt 23 is withdrawn or is projected with the feeler pin 29. When the door is closed, projection of the feeler pin is prevented. In modifications, Figs. 9 and 10 (not shown), the bolt and feeler pin carry respectively (1) a conducting plate and a discharge tube, (2) a plunger and two coreless coils. In another construction, Fig. I 1 (not shown), conducting plates carried by the bolt and feeler pin pass between two iron cores provided with primary and secondary coils. In a further construction, Fig. 13, the closing of the door is supervised by an optical system comprising two photo-transistors 60, 63 which receive light from a lamp 56 via lens 57 and prism 58, and lens 59 and prism-cum-lens 62 respectively. In a modification, Fig. 14 (not shown), the prism-cum-lens is replaced by a screen fixed to the bolt and movable between the lamp and one of the photo-transistors, while in another modification, Fig. 8 (not shown), the prisms and lenses are replaced by a screen on the bolt and a mirror on the door and only one photo-transistor. In another construction, Fig. 17, a pivoted bolt 102 carries a permanent magnet 106 which cooperates with a body 107 of magnetically saturable material above which is a magnetic shortcircuit element 110. In arrangements which are operated when the bolt is projected, (1) a screen on the bolt moves between a lamp and a photo-transistor, Fig. 6 (not shown), (2) a radio-active source on the bolt co-operates with a Geiger counter, Fig. 12 (not shown), (3) a member on the bolt moves between an electromagnet and a secondary winding, Fig. 15 (not shown).
Patent GB-1270134-A (GB)
Title: Automatic digitizing system
IPC: G06K11/00
Filed: 1969-08-06
Abstract: 1,270,134. Digitizers. GERBER SCIENTIFIC INSTRUMENT CO. 6 Aug., 1969 [27 Jan., 1968], No. 39397/69. Heading G4H. [Also in Division G1] In a system for reducing the lines or edge of, e.g., a map or drawing to digital co-ordinate form, a reticle (20, Fig. 1, not shown) carried by a Y carriage 22 which is itself carried by an X carriage 24 is centred over a line or moved across an edge, the output signal from a photosensor (see Division G1) moved with the reticle then enabling the outputs of X and Y encoders carried with the X and Y carriages to be fed to a recorder 34 (Fig. 2). As described the output of the photo-detector when lines are being digitized is fed direct to a comparator 64 which when the photo-detector output exceeds a reference level primes a gate 84 so that the output from the X and Y encoders are fed to the recorder when minimum difference detectors 86, 88 indicate that a predetermined amount of movement in the X or Y direction has been exceeded. To digitize edge positions the photo-sensor output is connected via differentiator 68 and a negative pulse inverter to the comparator. The photo-sensors may include filters so that differently coloured lines may be separately digitized.
Patent GB-1485117-A (GB)
Title: Automatic alarm systems
IPC: G08B25/04
Filed: 1974-08-16
Abstract: 1485117 Intruder; fire alarms EMI Ltd 16 Aug 1974 [21 Aug 1973] 39419/73 Headings G4N and G4H An alarm system comprises a plurality of alarm condition detectors 4 each associated with an emitter 5 for producing without interrogation a characteristic alarm signal, an inductive loop 3 for picking up the alarm signals and a monitoring arrangement 2 coupled to the loop 3 and responding to the alarm signals for generating a warning at 8 and to provide an indication of the identity of the emitting element and hence its location. The detectors 4 may be constituted by an intruder sensor, a temperature sensor, a sensor for measuring the rate of increase of temperature, a smoke detector or a sensor for detecting the products of combustion such as carbon dioxide. At each monitored location, the emitter or transmitter 5 and a receiver 6 may be coupled via a separate or common aerial to the loop 3. The signal transmitted by each transmitter 5 include a characteristic code which is decoded by the receiver 7. The monitoring arrangement 2 also includes an interrogate transmitter 9 for applying appropriate test signals to each location and determining if a return signal is received at 7. Alternatively, the transmitters 5 are arranged to periodically transmit signals, the non-appearance of which at the receiver 7 being an indication of a fault.
Patent GB-974698-A (GB)
Title: Synthetic resin coated slabs and boards
IPC: D21J1/00
Filed: 1961-11-03
Abstract: 974,698. Laminates. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT. Nov. 3, 1961 [Nov. 3, 1960], No. 39448/61. Heading B5N. Boards of wood, plywood, wood chips and fibrous materials, and slabs of concrete, stone or hard foam plastics are surfaced with fibrereinforced coatings of polyacrylic or polymethacrylic resins in which the reinforcement is completely embedded. The surface to be coated may first be sealed, preferably with material similar to the coating composition, preferably a solution of the polymers in the corresponding monomers, and may be roughed. The reinforcement may comprise woven, knitted or matted glass or synthetic resin fibres. Moderate pressures, and temperatures up to 100‹ C. may be used, and the surface of the resin may be covered during curing with a strippable polyterephthalate foil and/or a metal plate. Suitable resins mentioned are methyl methacrylate copolymerized with ethyl methacrylate, butyl methacrylate, ethyl-hexyl methacrylate, butyl acrylate, ethyl-hexyl acrylate or dodecylacrylate, with or without cross-linking agents such as allyl methacrylate, ethylene glycol dimethacrylate or triallyl cyanurate. Catalysts such as benzoyl peroxide, lauroyl peroxide and azodiisobutyric acid dinitrile and sulphur-containing regulators such as mercaptans or their derivatives may be included in the compositions. Redox catalysts, including organic sulphur compounds, cupric compounds and chlorides of organic bases may also be used. The surface of the resin may be embossed and/or the fibrous filler may be dyed or printed. The products, or the substrates before surfacing, may be shaped.
Patent GB-859582-A (GB)
Title: Improvements in or relating to window stays
Inventor: EURICH JAMES VICTOR
IPC: E05C17/18
Filed: 1953-12-09
Abstract: 859,582. Stud and socket fastenings; hinges and pivots; stays. BOULTON & PAUL Ltd. Dec. 9, 1958, No. 39695/58. Classes 44, 65(1) and 65(2). A window or like stay comprises an arm 1 having an integral ball or socket formation 7 adjacent one end, and a fixing bracket 3 having a complementary formation 6, at least the ball or the socket being of resiliently flexible material, e.g. plastic, to enable the pivotal coupling to be sprung together or apart. The arm has a number of sockets 8 engageable in a similar manner with the enlarged head 9 of a fixed post 10; the sockets 8 may be closely spaced so as to run into one another, or one or more sockets may be extended in the longitudinal direction of the arm so that the latter can move longitudinally relative to the post while remaining captive thereon. Preferably the post 10, arm 1 and bracket 3 are all made of plastic; alternatively, the post and bracket may be made of another material, e.g. metal. To prevent accidental disengagement of the arm and the bracket, the end of the arm is provided with an arcuate shoulder 12 which lies under a shoulder 13 (not shown) on the bracket when the stay is in use. Specification 859,583 is referred to.
Patent GB-1534631-A (GB)
Title: Gearbox for a twin-screw extruder having screws rotating in opposite directions
IPC: B30B11/24
Filed: 1977-09-23
Abstract: 1534631 Toothed gearing THYSSEN INDUSTRIE AG 23 Sept 1977 [25 Sept 1976] 39727/77 Heading F2Q A gearbox, for an extruder having two contra-rotating screws, comprises two gearing output shafts 8, 9 mounted in a casing 2a, 2b which is separate from a reduction gearing casing 1 and a screw casing to and between which it is secured, the shafts 8, 9 having splined sleeves 11 for coupling to the screws, in which the shafts 8, 9 are supported by thrust bearings 6, 14 and axially spaced radial bearings 10 and are provided between the radial bearings 10 with intermeshing teeth 8a, 9a of equal size. The teeth 8a, 9a may be helical with helix angles such that the axial force component from the transmission of torque for the output shaft 9 driven through the helical teeth is oppositely directed to the back-pressure of the screw which it drives. A disc 13 at the end of the shaft 8 which is driven by the reduction gear is dimensioned to give the desired clearance between the screw flanks.
Patent GB-332879-A (GB)
Title: Improvements in or relating to rotary vacuum pumps
IPC: F04D17/16
Filed: 1929-12-30
Abstract: 332,879. Siegbahn, K. M. G. Jan. 4, 1929, [Convention date]. Fluid-friction apparatus.-A vacuum pump comprises a rotary disc 1 which is disposed between two walls 7, 8, each of which is provided with a spiral groove 9 communicating with the intake 10. The grooves 9 gradually decrease in cross section in passing from the circumference to the centre, the decrease being more rapid at the circumference. The disc 1 is mounted on bearings 3, 4 and is driven by a pulley 12 secured to a shaft 13 which is mounted in a bearing 14. At its inner end the shaft 13 carries a friction disc 15 which is connected to the disc shaft 2 by means of a clutch 16. The backing pump is connectei to a pipe 11 which is placed between the bearings 4 and 14.
Patent GB-1201342-A (GB)
Title: Closure assemblies for fuel tanks
Inventor: DEPEW CHESTER CHARLES
IPC: B60K15/04
Filed: 1967-08-31
Abstract: 1,201,342. Container closures. CHESTER CORP. 31 Aug., 1967, No. 39874/67. Heading B8T. A closure assembly for an aircraft fuel tank fitted with an adapter ring 29 to receive the assembly comprises a removable closure 10 whose outer rim 26 is closely spaced from the adapter ring, a resilient sealing ring 30 below the rim, a retaining ring 34 of insulating material, e.g. a plastics, below the ring 30 for retaining the latter, an electrical-baffle seal ring 40 above the ring 30 and a pressure plate 49 of insulating material, e.g. a plastics, rotatably carried below the closure, and having lugs 52 which underlie the adapter ring 29 when the assembly is closed. In the assembly shown, a handle 14 seated in a recess 19 in the closure 10 is rotated about a pivot 16 in a pin 12 fixed to the pressure plate 49. The pressure plate is rotated in a bore 11 relative to the closure 10 to bring the lugs 52 in line with lugs 44 on the ring 34, which are located in recesses 46 in the flange 48 of the adapter ring 29, enabling the closure assembly to be raised. Several alternative shapes of baffle rings 40 resilient rings 30 and retaining rings 34 are also described, Figs. 4 to 9 (not shown), including two forms of an integral baffle ring 40 and resilient ring 30.
Patent GB-1464960-A (GB)
Title: Stable bleaching composition
IPC: C11D3/39
Filed: 1974-04-24
Abstract: 1464960 Bleaching detergent composition KAO SOAP CO Ltd 24 April 1974 [26 April 1973] 40412/76 Divided out of 1464959 Heading C5D [Also in Divisions D1 and C1] A stabilized bleaching composition comprises an inorganic percompound an an ammonium aurintricarboxylate (aluminon) chelating agent capable of forming a water-insoluble or sparingly soluble chelate compound with copper and/or iron. The percompound may be selected from sodium perborate, percarbonate, peroxy pyrophosphate, peroxy silicate and peroxy tripolyphosphate. The composition may be formulated as a bleaching detergent with anionic, non-ionic or amprolytic surface active agent. In the example, sodium percarbonate is formulated with aluminon in a detergent composition comprising sodium alkylbenzene sulphonate, sodium tripolyphosphate, silicate, carbonate and sulphate, carboxymethyl cellulose and a fluorescent dye and perfume.
Patent GB-1465685-A (GB)
Title: Production of propenylnorbornene
IPC: C07C1/00
Filed: 1973-08-29
Abstract: 1465685 2-(1-Propenyl)norbornene-5 IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Aug 1974 [29 Aug 1973] 40574/73 Heading C5E At least 90% pure 2-(1-propenyl)norbornene- 5 is produced by a process which comprises the steps of (a) condensing cyclopentadiene and piperylene, (b) distilling the condesnation product to obtain a distillate fraction comprising unreacted cyclopentadiene and/or piperylene and a residue fraction comprising 2-(1-propenyl) norbornene-5, (c) distilling the residue fraction from (b) to produce a distillate fraction containing 2-(1-propenyl)norbornene-5 and a residue fraction comprising C 15  hydrocarbons, (d) distilling the distillate fraction from (c) to produce a residue fraction comprising 2-(1- propenyl)norbornene-5 and a distillate fraction comprising piperylene dimers, and (e) distilling the residue fraction from (d) to produce a distillate fraction comprising at least 90% 2-(1-propenyl)norbornene. The cyclopentadiene  and piperylene condensed in step (a) may be a mixture of the pure compounds, optionally with an inert diluent, or the components of a mixed hydrocarbon stream produced by the method described in Specification 1,297,081 (the "piperylene concentrate").
Patent GB-981981-A (GB)
Title: A piezoelectric voltage generator
IPC: F02P3/12
Filed: 1963-10-15
Abstract: 981,981. Timing ignition. CLEVITE CORPORATION. Oct. 15, 1963 [Oct. 22, 1962], No. 40606/63. Heading FIB. [Also in Division H2] The ignition of an I.C. engine is derived from a piezo-electric element 24 which is suddenly compressed without impact (see Division H2) by a spring 42 and lever 36. A cam 54 rotating with the engine crank-shaft compresses the spring through a follower 58 which is locked by a latch 60 until this is displaced by the cam. Timing of the release, and therefore of the ignition impulse, is adjusted by rotation of eccentric 64 either manually or automatically by vacuum or centrifugal mechanism. Specification 712,803 is referred to.
Patent GB-996297-A (GB)
Title: Improvements in refractory mortars
IPC: C04B35/66
Filed: 1961-11-15
Abstract: A composition used as a binding agent in the manufacture of refractory materials comprises a colloidal aqueous solution of aluminium phosphate in which the alumina content has been partially replaced by chromium sesquioxide, the viscosity of the solution corresponding to a viscosity at 20 DEG  C. of 30 cp. to 1000 cp. The chromium sesquioxide preferably constitutes 5 to 35% by weight of the total aluminium-chromium phosphate.  The composition of the invention may be obtained by neutralizing with hydrated alumina the chromium-containing phosphoric acid waste obtained for example from electro-polishing baths.  The binder may be used in a mortar containing 5 to 30% by weight of the composition of the invention in combination with lean materials, the composition of which may be identical with or similar to the composition of the bricks or composite bricks for which the mortar is to be used, e.g. a 1 : 1 ratio of corundum and chamotte. In specific examples, compositions of the invention are used as binders for compositions containing (1) zircon sand, zircon powder, fused quartz and sulphite waste liquor solids and (2) corundum, clay, and sulphite waste-liquor solids, and as a mortar constituent in combination with (1) clay and chamotte powder and (2) clay and corundum in the manufacture of composite bricks of chamotte and chamotte and magnesite.
Patent GB-1133619-A (GB)
Title: Industrial trucks
Inventor: TEDD DAVID CLIFFORD
IPC: H02P7/29
Filed: 1965-09-27
Abstract: 1,133,619. Control of D.C. motors. EATON YALE & TOWNE Inc. 27 Sept., 1966 [27 Sept., 1965], No. 40976/65. Heading H2J. A battery-fed motor 14 for driving an industrial truck is connected in series with a semiconductor switch 16 which is similar to a controlled rectifier and has the additional property that it can be switched off by negative gatecathode pulses, the speed of the motor being controlled by regulating the gate current of the switch. Control circuit 21 is associated with accelerator pedal 22 to supply successive positive and negative pulses to the gate, negative pulses being applied at fixed intervals whilst the positive pulses are applied with a delay, which decreases as the pedal is depressed. For full speed operation, contact 19 is closed to shortcircuit the switch. Diode 18 passes discharge current from the armature during non-conductive periods of the switch 16. A number of switches 16 may be connected in parallel, and their gates connected to circuit 21, means being provided to equalize the currents through the switches. Field winding 15 has reversing switches 17.
Patent GB-1234774-A (GB)
Title: Improved transfer or decalcomania
IPC: B44C1/175
Filed: 1967-05-31
Abstract: 1,234,774. Transfers. JOHNSON MATTHEY & CO. Ltd. 28 May, 1968 [31 May, 1967; 8 Sept., 1967], Nos. 25121/67 and 41095/67. Heading B6C. A transfer or decalcomania comprises a temporary flexible support sheet of metallic foil, a layer of releasable adhesive, a sheet of tissue paper or plastics material having a microporous structure, a design layer and a cover coat of, for example, a methyl methacrylate based material. The adhesive is either water soluble or otherwise releasable without the application of heat.
Patent GB-894790-A (GB)
Title: Improvements in or relating to wheel covers
IPC: B60B7/08
Filed: 1958-12-19
Abstract: 894,790. Vehicle wheel covers. LYON, G. A. Dec. 19, 1958, No. 41114/58. Classes 144(1) and 144 (2). A vehicle wheel cover disc or trim ring 20 is formed with an axial flange 23 for spaced telescopic engagement with the bead seating flange 13 of a wheel rim, the flange 23 being provided with a circumferentially spaced series of indented, embossed or cut out sockets 26 defined on the axially inner side by a cover retaining shoulder 25, which may be a continuous annular rib on the flange or a separate shoulder for each socket, the sockets serving to receive retaining bumps 15 projecting radially inwardly from the rim flange 13 whereby the socket shoulder 25 retains the cover axially on the wheel and the circumferentially facing sides of the socket embrace the bumps 15 to prevent relative rotation of the cover on the wheel, and a radially and axially inwardly sloping portion of the cover axially inwardly of the shoulder 25 serving as a lead-in ramp to facilitate springing of the shoulder 25 behind the bumps 26. The pheripheral edge of the cover may be beadrolled and may extend to abut the lip of the wheel rim to define therewith an annular space for the reception of wheel balancing weights. The cover flange 23 may be axially slit to increase its resiliency and to permit portions between the slits to be pressed radially inwardly to form, or be indented with, the sockets. Alternatively, the sockets may be defined by U- or H-shaped embossings on the flange 23, and the flange 23 may be laminated with a peripheral flange of a separate hub cap or wheel cover portion.
Patent GB-1021385-A (GB)
Title: Derivatives of 2-oxo-2h-1,4-benzoxazine
IPC: C07D265/36
Filed: 1964-10-08
Abstract: The invention comprises compounds of the general formula <FORM:1021385/C2/1> wherein X and X1 are each hydrogen or hydroxy, and R is the phenyl radical or a C1- 4 alkyl radical.  The compounds are prepared by reacting a compound of the general formula <FORM:1021385/C2/2> with a compound of the formula Z-O-CO-CO-R wherein X, X1 and R are as defined above and Z is a C1-3 alkyl radical.  Examples are given.  In Example 1, crystalline 2-aminoresorcinol is obtained from an aqueous solution of its hydrochloride by neutralization with aqueous sodium bicarbonate, extraction with ether and evaporation of the ether.  In Example 5, 4-aminopyrogallol is prepared by hydrogenation of 4-nitropyrogallol.
Patent GB-870232-A (GB)
Title: Improvements in or relating to face driving lathe centres
Inventor: JONES GLYN CEIROG WALTERS
IPC: B23B33/00
Filed: 1958-12-22
Abstract: 870,232. Lathe driving centres. MYFORD ENGINEERING CO. Ltd. Dec. 21, 1959 [Dec. 22, 1958], No. 41230/58. Class 83 (3). A driving centre for a lathe comprises a housing 3, Fig. 1, carrying a spring-loaded centre member 1 in a bore 2, the outer end of member I being surrounded by a driving- member 6 with work-engaging teeth 7, there being a driving connection from the housing to member 6 consisting of balls 11 in recesses 10 in the face of the housing engaging V cross-section grooves 12 in the opposing face of a flange 8 on member 6. Thus, relative turning between the housing and member causes the member to move axially and dig teeth 7 further into the work. Two balls may engage diarrietrically-arranged grooves 12, Fig. 5, and further grooves 13 of different included angle may be provided for alternative use. Member 6 is retained by a cap 9 screwed on the housing. In another arrangement, the cap slides over the housing and is held by a ball detent.