baber/WOPTO huggingface dataset:
Patent GB-1469594-A (GB)
Title: Assembly of pushbutton switches
IPC: H01H13/70
Filed: 1974-10-15
Abstract: 1469594 Push-button switches SCHOELLER & CO ELEKTROTECHNISCHE FABRIK GmbH & CO 15 Oct 1974 [18 Oct 1973] 44729/74 Heading H1N A push-button switch assembly having a plurality of push-buttons 22 provided with a mutual cancellation facility and carrying movable contacts which co-operate with a printed circuit board 15 in a housing 10 has apertures in said housing provided with guide extensions 21 which receive and guide hollow push-buttons 22 and the spaces between the extensions have cross members of a lattice-like spring-loaded shift interlock member 14 inserted therein, said member 14 being provided with latching projections 16 which pass through apertures in the walls of the guide extensions 21 and co-operate with the push-buttons 22. Square-section hollow push-buttons 22 have bridging contacts (35, Figs. 4 to 9, not shown) secured on one or more lateral surfaces by means of lugs (36) which clip behind webs 33. The webs 33 bridge grooves (32, Fig. 8, not shown) for reception of portions (34) of the contacts and have inclined surfaces, as shown in Fig. 11, for co-operation with inclined surfaces on the projections 16 such that partial depression of a button 22 (as the upper button in Fig. 11, for example) urges the locking frame 14 down against the action of springs 11, 12 (Fig. 2) to release a previously latched button 22 (as the lower button in Fig. 11, for example). If a button 22 if fully depressed the appropriate projection 16 returns over the associated web 33 to hold the button down. Return springs 42 for respective buttons 22 are fitted over insulating tubular members 55 having flanges 54 which abut the printed-circuit on board 15 sealing the housing 10. The buttons have discs 49 carrying symbols, or clip-on caps (46, Fig. 7, not shown) with discs 48 inserted. Contact blades 25, 26 in a holder 24 are fitted at the base of the housing 10 for actuation by the locking frame 14.
Patent GB-1260786-A (GB)
Title: Charged particle line scanner with zig zag control electrodes
Inventor: BINGHAM RONALD HOLLIS
IPC: H01J31/12
Filed: 1970-09-21
Abstract: 1,260,786. Cathode ray tubes. NORTHROP CORP. 21 Sept., 1970, No. 44913/70. Heading H1D. Means for controlling the flow of charged particles between two electrodes 13 and 14, Fig. 3, comprises two spaced parallel plates 11 and 12 (shown hinged open in Fig. 3) across which a potential gradient is established, and a plurality of conductors 25 extending in zig-zag fashion transversely to the electric field. Opposed pairs of conductors 25 on the two plates 11 and 12 are arranged in complementary manner and are connected to opposite terminals of a bi-stable circuit. Over one half of the length of the conductor 25 this potential corresponds to the static potential gradient so that there is no field component normal to the plates 11 and 12; over the other half of the length their potential differs from the static potential gradient thereby providing a field component normal to the plates 11 and 12 which effectively prevents charged particles from passing through this part of the space between the plates. With three pairs of conductors 25 arranged as shown in Fig. 3 there are eight channels (such as 55) defined by the dotted lines 27, only one of which is open at any one time according to the states of the three bistable circuits (not shown) connected to the terminals 26a-26f. The plates 11 and 12 may be of glass provided with resistive coatings 23 which are preferably also secondary electron emissive; these coatings are interrupted in the areas 23a where the conductors 25 zig or zag, and conductive strips 30 allow a static potential gradient to be applied across the plates. When the particles are electrons the electrode 13 may be radio-active, photo-emissive or thermionic and the electrode 14 may be a fluorescent screen or a memory plate.
Patent GB-1237280-A (GB)
Title: Ventilation device for a window-pane or panel
Inventor: LEUZEN JAN VAN
IPC: E06B7/10
Filed: 1968-09-23
Abstract: 1,237,280. Ventilators. J. VAN LEUZEN. 23 Sept., 1968, No. 45060/68. Heading F4V. A window frame member 1 has an extension 3 provided with ventilation apertures 4, a closing element 5 being provided to permit or stop ventilation. Condensation will collect on the element 5 and can be discharged into a gutter 7 where it will flow away via the apertures 4. The element 5 has a counterbalancing handle 9 and may be arranged to pivot due to the weight of the condensation so that the latter is automatically discharged into the gutter. The element 5 may be fixed in an intermediate position, and may be detachable from its pivot. An alternative construction is shown in Fig. 2.
Patent GB-1237138-A (GB)
Title: Height measuring device
IPC: A61B5/107
Filed: 1968-09-23
Abstract: 1,237,138. Height measuring tape device. QUENOT & CIE S.A.R.L. Sept. 23, 1968 [Nov. 17, 1967], No. 45099/68. Heading G1M. A right angled casing 2 having a reading window 5, a marker 6, and a spirit level 9 is provided also with an extension 3 which may be rested on the head of a person whose height is to be measured. The free end of the self winding tape is loosely rivetted to a footplate 8.
Patent GB-1210755-A (GB)
Title: Improvements in purification and clarification of water by means of flotation
Inventor: NILSSON NIL
IPC: C02F1/24
Filed: 1968-09-26
Abstract: 1,210,755. Purification and clarification of water. APPARATKEMISKA AB AKA. 26 Sept., 1968, No. 45672/68. Heading C1C. A process for the purification and clarification of water in a flotation basin 3 in which a mixture of flocks and water with gas or air bubbles introduced at 2 flows up through a shaft 4 which is partly defined by a screen 5 with a curved upper portion 6, is characterized in that the ratio between the horizontal distance (L) between the upper edge of the screen and an overflow 7 for the flock and the vertical distance (H) between the upper edge of the screen and the water surface is maintained at a value of at least 5. The underlying layer of purified water passes towards an opening in the bottom at one end of the basin 3. In the embodiment described, impurities in the water are flocculated using aluminium sulphate and the pH is adjusted by the addition of sodium hydroxide.
Patent GB-1394149-A (GB)
Title: Laser generator having a reduced spectrum and turnable  wavelength
IPC: H01S3/106
Filed: 1973-10-03
Abstract: 1394149 Lasers COMMISSARIAT A L'ENERGIE ATOMIQUE 3 Oct 1973 [6 Oct 1972] 46171/73 Heading H1C A selected single longitudinal mode or narrow frequency band is generated within the amplification band of a laser by including in the resonator 34, 36, Fig. 5, an optical plate 14 having parallel major surfaces cut in a birefringent substance parallel to its optical axis, and a polarizer 12, the direction of polarization of which is inclined at an angle of 45 degrees with the neutral lines of the plate, the major surfaces of the plate being additionally covered by reflecting layers 16, 18, Fig. 2, forming a Fabry-Perot etalon. The laser is tuned to a selected mode by rotating the plate 14 about two orthogonal axes both of which are orthogonal to the laser beam produced by an Nd-glass, ruby, dye or gaseous active medium 30. The plate may be disposed in a thermostatically controlled chamber 42, and tuning may be effected by altering the attitude of the plate or by changing the controlled temperature of, or applying pressure to, the birefringent material. An additional birefringent element may be combined with plate 14, the added element being subject to temperature or pressure adjustment or consisting of an electrically controlled Kerr or Pockels cell.
Patent GB-1071729-A (GB)
Title: Improvements in or relating to a.c. attenuators
IPC: H03G1/02
Filed: 1965-11-01
Abstract: 1,071,729. Transformers. AMPEX COPORATION. Nov. 1, 1965 [Nov. 4, 1964], No. 46174/65. Heading H1T. [Also in Divisions H3 and H4] A variable permeability transformer (A.C. attenuator) comprises a core 1 (Fig. 2) of a ferrite whose hysteresis loop is of minimal squareness and area provided with D.C. control (bias) windings 30 wound through slots in opposing legs of the core 1 so that each pair of windings 30, 30<SP>1</SP> and 30<SP>11</SP>, 30<SP>111</SP> forms a flux path 26 encircling the slots in opposed directions, these flux paths 26 being shorter than the main flux path 16 linking primary and secondary windings 10, 20. Automatic gain control.-In a closed loop automatic gain control system (Fig. 4, not shown), the input signal (e.g. FM with sidebands) may be mixed with a pilot and applied to the input terminal (12) of the transformer (1). At the transformer output (22) the pilot may be separated from the signal to be controlled by a pilot eliminator (40) and pilot extractor (42), a detector (44) rectifies and smooths the pilot signal to remove the carrier, and the remaining carrier error signal may be used by a control driver (46) to vary the control current in the control windings (30) about the level set by the D.C. bias supply (36) and potentiometer (38). In an open loop automatic gain control system (Fig. 5, not shown) the pilot extractor (42) may be connected to input terminal (12) of the transformer (1) although the eliminator (40) may remain in the transformer output circuitry. A non-linear amplifier (48) is connected between the detector (44) and control driver (46) to compensate for non-linear characteristics in the system, and D.C. biasing of the control windings (30) may be effected as before.
Patent GB-1332840-A (GB)
Title: Primer composition for adhering silicone elastomer to substrates
IPC: C09D4/00
Filed: 1971-08-06
Abstract: 1332840 Primer compositions DOW CORNINGCORP 6 Oct 1971 [30 Dec 1970] 46462/71 Heading C3T [Also in Divisions B2 and C4] A primer composition comprises 1 pbw of tetra ethoxy or propoxy silane or poly ethyl or propyl silicate or any mixture thereof, 0À75-2À5 pbw of bis(acetylacetonyl) diisopropyl titanate, 0À75- 5 pbw of a compound CF 3 CH 2 CH 2 Si[OSi(CH 3 ) 2 - X] 3  wherein each X is H or -CH 2 CH 2 Si- (OOCCH 3 ) 3 , at least one being the latter, and 1-20 pbw of a ketone, hydrocarbon or halohydrocarbon solvent boiling not above 150‹ C. In the examples 1 pbw each of bis(acetylacetonyl)diisopropyl titanate, polyethyl silicate and are dissolved in 10 pbw of acetone or in 9 pbw of light naphtha and 1 of methylisobutylketone. The solutions are used to prime Ti panels, to which a Pt-catalysed room-temperature vulcanizable poly-trifluoropropylmethyl siloxanebased rubber is then applied.
Patent GB-1384688-A (GB)
Title: Trailer vehicles
IPC: B60D1/06
Filed: 1970-10-31
Abstract: 1384688 Trailer vehicle P DE CRUCE GRUBB 31 Jan 1972 [31 Oct 1970] 46467/70 Heading B7B A trailer vehicle, especially a horse box trailer, has fixed parallel wheel axle casings 9, 10 and a tow bar 6, the distance between a plane X-X and the ball socket (21), Fig. 1 (not shown), is between 1À6 and 2 times the track width to facilitate manoeuvring, and avoid swaying, snaking &c. of the trailer.
Patent GB-1493825-A (GB)
Title: Semiconductors
IPC: H01L29/00
Filed: 1974-10-28
Abstract: 1493825 Semiconductor devices GENERAL ELECTRIC CO 28 Oct 1974 [30 Oct 1973] 46512/74 Heading H1K [Also in Division B1] A plurality of initially distinct semiconductor bodies and/or layers are formed into a single integral body during a. temperature-gradientzone-melting process which comprises vapour depositing a metal layer 16 on a (111) surface of a first semiconductor body 10, placing or depositing a second semiconductor body or layer 18 on the metal layer 16 and establishing- a temperature gradient across the assembly so that the metal layer 16 melts and forms a liquid mass comprising a semiconductor-metal solution at the interface of the bodies 10, 18, which liquid mass migrates across the thickness of the body 10 to the high temperature side leaving behind it recrystallized metal-doped semiconductor material integral with the body 18 and optionally forming a PN junction therewith. A high power abrupt-junction diode may be made in this way if the original bodies 10, 18 have (111) orientation. If (100) orientation is used a more irregular junction is produced, but this may still be satisfactory for a low power diode. If the process is repeated to produce a 3<SP>+</SP> layer structure it may be used in the manufacture of power transistors, SCRs or directional switches. If the layer 18 is deposited it will, prior to recrystallization, be polycrystalline. Fig. 3 illustrates an apparatus in which the semiconductor-metal-semiconductor sandwich 10/16/18 is placed between a water-cooled copper block 54 and a molybdeum block 52 heated by an electron beam. Radiation screens 58 ensure that there is no lateral temperature gradient.
Patent GB-1376407-A (GB)
Title: Mechanically deformable laminate
IPC: B63B3/68
Filed: 1972-10-10
Abstract: 1376407 Metal-rubber damped laminates CEGEDUR SOC DE TRANSFORMATION DE L'ALUMINIUM PECHINEY 10 Oct 1972 [11 Oct 1971] 46707/72 Heading B5N A vibration-damped laminated structure which may be mechanically shaped by stamping at ambient temperature comprises two metal sheets of thickness 0À25-2 mm., preferably 0À4-1 mm., and thickness ratio 1-2 bonded by an interlayer of butyl rubber having a low degree of cross-linking, of thickness 0À4-0À8 mm. The metal may be aluminium, aluminium alloy, steel, copper, brass, iron or white iron. The butyl rubber may be applied as a viscous mass which is obtained by copolymerizing isobutylene with 0À5-4% of its weight of isoprene in methyl chloride or trichloroethylene, and may include fillers. The laminate may be made by degreasing the metal, immersing in trichloroethylene, rolling the butyl rubber between the sheets and pressing the assembly for 15 hours under 10 metric tons, and may be anodized, edge-crimped or painted and baked. Comparison examples disclose the preparation of similar laminates using a neoprene-based adhesive.
Patent GB-958343-A (GB)
Title: Improvements in and relating to laundry and like machines
IPC: D06F37/22
Filed: 1962-12-11
Abstract: 958,343. Washing-machines. PHILCO CORPORATION. Dec.11, 1962 [Dec. 11, 1961],No. 46826/62. Heading D1A. [Also in Division F4] In a laundry machine having a horizontal-axis rotary basket mounted in a tub 11, support means for the tub 11 include a rod 17 disposed parallel to, below and to one side of said axis, torsion sleeve means 18 on the rod 17 and clamping means 19 fitting around sleeve 18, there being means 23,14 . rigidly connecting rod 17 and clamping means 19 one to tube 11 and one to the machine outer casing. A drive motor is mounted on the underside of the tub 11, and tub 11 has counterweights (not shown). The machine is used for washing, rinsing and spindrying.
Patent GB-1440105-A (GB)
Title: Sealing means and method
IPC: F16L21/02
Filed: 1973-10-08
Abstract: 1440105 Joint-making packing J BROTHERS 8 Oct 1973 [6 Dec 1972] 46930/73 Heading F2B A seal joint between members 12, 14 or 14, 14 of, for example, a pressure vessel is made by providing recesses 24 in the interfacing surfaces 34, disposing resilient elements 26 in the recesses and a ductile element 32 which is sheared as the members are bolted together to form sealing sub-elements which compress the resilient elements in the recesses. As shown, the ductile element 32 may be made of lead, copper or soft steel and formed with shoulders 38 which shear off and enter recesses 40 during assembly. In an alternative embodiment, Figs. 5 and 6 (not shown) two ductile elements (44) are provided one each side of a cutting die (46) so that as the members (14a, 14a) are bolted together the middle portions of the ductile elements are sheared off and forced into the recesses to compress the resilient elements (26). The remaining portions of the ductile elements are deformed between castellations (50, 52).
Patent GB-1020742-A (GB)
Title: Jogging machine
IPC: B65H31/40
Filed: 1963-11-28
Abstract: 1,020,742. Sheet-delivery apparatus. LINDACO A.B. Nov. 28, 1963 [Jan. 8, 1963], No. 46997/63. Heading B6H. In a jogging machine for aligning the edges of sheets, the table 5 for the pile of sheets is supported on a base 2 by four leaf springs 12 which are arranged parallel to each other and in planes which are perpendicular to a diagonal of the table 5, the table being inclined on the base 2 such that the said diagonal is inclined. The lowermost and uppermost corners of the table 5 are cut away at 7, 6, respectively, to facilitate positioning and stacking of the sheets, and sides 8 are provided on the lower edges of the table. The sides 8 are inclined to the table at an angle of between eighty-five and eighty-nine degrees. The leaf springs 12 each have one end fastened to the base 2 by a block 14, and the other end fastened to the table 5 by a block 13. The base 2 is pivotally mounted on a stand 1 by means of screws, and can be secured in inclined position by wing nuts 3. An electric motor is secured by bolts to the table 5, and has a shaft 10a carrying an eccentric weight 10b; the upper part of the motor body passes freely through an aperture in the base 2. When the motor is operated to produce vibrations of the table 5, the leaf springs 12 ensure that the maximum vibrations act substantially parallel to the slanting diagonal of the table.
Patent GB-1440300-A (GB)
Title: Direct-current stepping motor drive system
IPC: G05B19/23
Filed: 1974-11-01
Abstract: 1440300 Automatic control KOLLMORGEN CORP 1 Nov 1974 [6 Nov 1973] 47294/74 Heading G3N [Also in Division H2]  A drive system for developing a controlled mechanical output comprises a stepping motor operable in response to a first input signal means and a high torque, direct-current motor having a low-inertia rotor assembly, operable in response to a second input signal means, the shafts of the two motors being rigidly connected so that the torque of the D.C. motor always aids the torque of the stepping motor, thus providing a controlled mechanical output. The embodiment shown in Fig. 1 uses a stepping motor 40 whose shaft 38 is locked by a coupler 44 to the shaft 36 of a D.C. motor 34 driving a load such as a tool-carrying table, whose movement is determined by an information transmitter 12 (e.g. a punched or magnetic tape) supplying drive signals to a stepping motor control unit 46 and to the magnitude and direction sensors 22, 24 supplying a constant current D.C. drive 32 for the motor 34, which thus rotates with a constant torque and in a direction determined by members 22, 24. Motor 34 supplies a fast response torque boost to the stepping motor 40 enabling the latter to step at an increased rate whilst retaining its ability to hold its position between commands, the load and stepping range of the motor 40 thereby being extended. The open-loop system of Fig. 1 is modified to produce the closed-loop system of Fig. 2, wherein movements of the table 20 are sensed by an optical or magnetic transducer 48 controlling a decremental counter 16 in response to the movements of the motor 34 and 40 which have a common shaft 41. Counter 16 forms part of the information transmitter 12 which includes a tape reader 14 and an oscillator and translator 18 supplying the members 22, 24 and 46 of Fig. 1, the member 22 in this case comprising a ramp generator 26, level sensor 28 and flip-flop 30.
Patent GB-1150298-A (GB)
Title: Dimerization
IPC: C08F4/70
Filed: 1966-10-21
Abstract: 1,150,298. Polymerisation catalysts. PHILLIPS PETROLEUM CO. 21 Oct., 1966 [22 Oct., 1965], No. 47384/66. Heading B1E. [Also in Division C5] Polymerisation catalysts comprise the product formed on mixing (1) a dinitrosyl halide with (ii) a reducing agent comprising one or more compounds of formula RMgX, R.M, R,Zn, R 2 Cd, R 2 AlOR or R 3 Al in the. presence of (iii) one or more of the following (a) acyclic or cyclic ethers having 2-8C (b) stibines, ansines or phosphines of formula R 3 Sb, R 3 As, or R 3 P, (c) phosphine oxides, R 3 PO, (d) sulphides, R 2 S (e) heterocyclic N compounds having 4-1OC (f) heterocyclic sulphides having 3-8C, in which R=alkyl, alkenyl. aryl or cycloalkyl or any combination thereof, R containing a total of 1-12C, X=Cl, Br or I and M=alkali metal.
Patent GB-1401564-A (GB)
Title: Reamer-drill
IPC: B23B51/00
Filed: 1973-10-10
Abstract: 1401564 Reamer-drill TIPSWITOOL EVELYN DIESMEIER 10 Oct 1973 [26 Oct 1972] 47393/73 Heading B3C A reamer-drill comprises a drill bit 1, a tapered reamer section 2, a drive shaft 6, and grooves 4 forming cutting edges 5, shaft 6 being provided with driving flats 8. There may be three, or six such flats, which may be flat or of concave form, and the distance of each flat from axis 9, may be equal to or smaller than, the radius of shaft 6. The tool is made in one piece.
Patent GB-1349980-A (GB)
Title: Crash restraint apparatus for vehicles
IPC: B60R21/30
Filed: 1971-10-12
Abstract: 1349980 Crash restraint bags ROCKET RESEARCH CORP 12 Oct 1971 [27 Oct 1970 14 June 1971] 47438/71 Heading B7B. A crash restraint bag 18 is inflated by generating a flow of high velocity gas through a passageway so as to draw air into the passageway and generate a flow of gas and air which is directed into the bag. A rectangular box-like frame 20 defines a passageway 21 having an inlet 28 closed by a valve 38 and an outlet 30. A plurality of gas jet cartridges 34 arranged in a rectangular pattern are mounted by struts 56 which permit the passage of air. The bag 18 is initially folded in the outlet 30, the valve 38 being closed by a spring urged plate 40. Upon impact of the vehicle a sensor initiates firing of the cartridges 34 through igniters 58 to rupture a membrane 36 and inflate the bag 18. The plate 40 on release of a switch actuated finger 50 pivots to the open position, due to suction at the inlet 28, to allow air to be drawn into the passageway 21 until the plate 40 is spring urged to closed position to prevent the escape of gas-air mixture from the inlet 28. In a modification, Figs. 4 to 7 (not shown), the valve is formed of a screen (62) having an inner membrane (64) normally spaced from the screen. During initial ignition of cartridges (34a) the membrane is forced against the screen, but is subsequently drawn inwardly to admit air; heat of ignition destroys the membrane, but a valve (67) comprising flexible plates (67) is closed by outward flow of gas-air mixture from the bag. In a further modification, Figs. 8 to 15 (not shown), the bag is mounted beneath the vehicle dashboard (12). Jets (70) communicate with a container for compressed air (80) having an igniter (88) within a composition which generates a high volume of gas upon ignition. Reference has been directed by the Comptroller to Specification 1,276,817.
Patent GB-1479228-A (GB)
Title: Process for the oxidation of primary allylic alcohols
IPC: C07C45/29
Filed: 1975-11-18
Abstract: 1479228 Unsaturated aldehydes; furfuryl alcohol SCM CORP 18 Nov 1975 47516/75 Heading C2C Unsaturated aldehydes are prepared by oxidizing 3-substituted or 3,3-disubstituted allyl alcohols in the presence of an Oppenaier oxidation catalysts and furfural as a hydrogen acceptor, giving furfuryl alcohol as a byproduct. Specified catalysts are aluminium alkoxides which may be prepared in situ from an alkylaluminium. Examples prepare citral from geraniol/nerol, prenal from prenol, trans-2- hexanal from 2-hexen-1-ol, farnesal from famesol and cinnamaldehyde from cinnamyl alcohol. Other suitable starting materials are coniferyl alcohol and vitamin A alcohol. Citral prepared by the above method may be condensed, with or without isolation, with a ketone, specifically acetone to give, e.g. pseudoionone.