baber/WOPTO huggingface dataset:
Patent GB-579435-A (GB)
Title: Improvements relating to electric discharge devices
IPC: H01J5/50
Filed: 1944-03-30
Abstract: 579,435. Thermionic valves. FERRANTI, Ltd., and DARBYSHIRE, J. A. March 30, 1944, No. 5849. [Class 39 (i)] [Also in Group XXXVI] A thermionic valve for use at high frequencies has a glass base in which the electrodes are welded to steel sockets adjacent to one another, each socket being fused at its rim into the base by a chrome-iron alloy so that its outer end does not project beyond the exterior surface of the base. The length of each socket is greater than its diameter. In assembly, a thin ring of chrome-iron alloy is brazed to the surface of each socket at the open end by means of a thin interposed copper washer, the socket is inserted into a hole in the base and the ring of alloy fused thereto. The holder may have a base of plastic material provided with steel pins to engage with the sockets and may be provided with a shield of non-conducting material which also encloses the valve envelope.
Patent GB-390617-A (GB)
Title: An improved wringer fixture
IPC: D06F45/00
Filed: 1932-02-27
Abstract: 390,617. Wringing-machines. SOUTHHOOK POTTERIES, Ltd. and BARBOUR, J. A., Bonnyton Works, Bonnyton, Kilmarnock. Feb. 27, 1932, No. 5908. [Class 138 (ii).] A bar 5 for supporting a wringer over a sink, tub, &c. 10 has a depending pin or prong 6 at one end engaging the back edge of the sink or a hole therein, and a clamp 15 at the other end for engagement with the front edge of the sink to put the bar in longitudinal tension. The pin 6 is passed through a hole in the bar and secured by a nut 8 and the hole in the rear sink-edge is preferably provided with a flanged bush 11 secured by a nut 14. The clamp comprises a box bracket 23 secured to the bar and carrying a screw 20 with a universally pivoted presser foot 16. The foot 16 may be faced with leather 19 and the edge of the sink may be roughened to prevent the foot from slipping. The sink may be protected by leather 25 on the bar 5. When the support is used in conjunction with separate adjacent sinks, the rear socket 27, Fig. 4, for the pin 6 is formed in a member having pins 28 secured in holes in the two sinks and a plate for the presser foot may similarly be secured on the front edges of the sinks.
Patent GB-646085-A (GB)
Title: Improvements in curtain rail assemblies for cubicle construction
IPC: A47H1/04
Filed: 1948-02-27
Abstract: 646,085. Suspending curtains. SAYER, A. L. Feb. 27, 1948, No. 5915. [Class 52 (v)] [Also in Group X] An assembly for use in constructing cubicles comprises a support tube 5 with a fixing pin which passes through a central hole in a square block 1. Detachably connected supporting members 7 have cylindrical studs which engage in holes 11 in the vertical faces 6 of the block 1. C-shaped runner rails 8 with internal inverted T-shaped webs 9 are supported by the members 7. Headed studs 15 fit in any hole 11 not required to receive a member 7.
Patent GB-690303-A (GB)
Title: Improved brake for a perambulator
Inventor: GANDER HAROLD FREDERICK
IPC: B62B9/08
Filed: 1951-03-13
Abstract: 690,303. Perambulator brakes. GANDER, H. F., MERCER, A. W. J., and DOCKERILL, H. E. A. April 30, 1951 [March 13, 1951], No. 5967/51. Class 103 (i). A perambulator has internal shoe-drum brakes fitted adjacent the wheels at each end of the rear axle, each brake being applied by the separate ends of a cable 29 which passes round a pulley 31 journalled in a frame 30, the force applied to each brake by a single cable 9 passing to a spring ratchet locked hand lever being thus equalized by connecting the other end of cable 9 to the pulley 31. Each brake has pairs of shoes 2 expanded by a cam 4 and applies a braking effort to the drum 10 through a fully floating leather lining element 11.
Patent GB-1176324-A (GB)
Title: Improvements in or relating to Capacitance Gauges
Inventor: COTTERELL KENNETH
IPC: G01B7/13
Filed: 1966-02-10
Abstract: 1,176,324. Electro-physical measurementlinear dimensions. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 10, 1967 [Feb. 10, 1966], No. 5957/66. Heading G1N. The invention comprises a modification of the capacitor bore gauge shown in Specification 1,072,511 and uses two diametrically opposed electrodes which may be connected in the negative feedback loops of a high-gain amplifier fed with a stable reference input signal.
Patent GB-489515-A (GB)
Title: Improvements in or relating to means for securing an electric lamp to a holder
IPC: H01R33/97
Filed: 1937-03-01
Abstract: 489,515. Two-part couplings. ROBBINS, D. H. March 1, 1937, No. 6003. [Class 38 (i)] A device for locking an ordinary bayonet-cap lamp in its holder consists of a ring 1 to surround the cap 4 having projections 5 to enter the bayonet slots 12 of the holder and a key operated looking screw 7 to engage above the usual shoulder on the lamp cap to secure the ring 1 in place. The screw 7 is set at an angle in a socket 6 and has an angular head 10 for engagement by a key. The ring 1 has an internal flange at its lower edge with slots for passing over the bayonet pins 3 and the projections 6 extend above and inwardly from the upper edge of the ring.
Patent GB-429010-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J61/54
Filed: 1935-02-25
Abstract: 429,010. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Feb. 25, 1935, No. 6033. Convention date, May 3, 1934. Drawings to Specification. [Class 39 (i)] A tube, such as a lamp having a working temperature over 200‹ C., has an auxiliary electrode of which at least a part bears on the outer side of the tube wall and a material, such as enamel or an oxide layer retaining its insulating properties at a high temperature, is provided between this part and the tube wall. In one form, a U-shaped tube having a filling of neon and sodium has an auxiliary electrode consisting of a metal clip embracing the middle of the tube and a narrow strip parallel to the limbs of the tube which may be connected to one electrode. The clip is coated with an enamel, and the strip may be of aluminium with an oxidized surface. In a modification a wire having an oxidized surface may be wound around the tube.
Patent GB-525618-A (GB)
Title: Improvements in electric discharge devices
IPC: H01J13/32
Filed: 1939-02-23
Abstract: 525,618. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 23, 1939, No. 6089. Convention date, Feb. 23, 1938. [Class 39 (i)] In a device which comprises an anode 5, Fig. 1, and a liquid cathode 10 arranged axially within the container, a starting electrode 12, a transverse baffle 21 in the form of a cooling coil, and a transverse baffle 24 which, with the baffle 21, forms a tortuous path for the discharge, the baffle 21 is rendered impervious to the discharge by means of discs 22 secured to the central part thereof. A vitreous envelope may be used, and cooling may be increased by a coil 19. In another form, the metal container 30, Fig. 3, has double walls through which cooling fluid flows, and the baffle 24 consists of an apertured metal plate secured to the container through a flange 39.
Patent GB-1359574-A (GB)
Title: Temperature sensors
IPC: B60J7/04
Filed: 1973-01-31
Abstract: 1359574 Temperature alarms S DAVALL & SONS Ltd R W G SOMERVELL and E BENNETT 31 Jan 1973 [9 Feb 1972] 6130/72 Heading G4N [Also in Division G1] A temperature sensor comprises a magnet 2 on a rotary member 1 and producing a magnetic flux; a ferromagnetic polepiece element 4 of which the permeability varies with temperature in thermal communication with the member and arranged to alter the flux in response to the temperature of the member; a pick-up coil 3, stationary with respect to the rotational axis of the member and sensing the flux as the magnet passes the pick-up; and an integrating circuit 5 arranged to receive signals from the pick-up representative of the rate of change of the flux magnitude and to integrate the signals to produce an output signal representative of the temperature of the member. The material of the polepiece 4 exhibits a loss of permeability with temperature, for example when heated through a 10‹ C. range near its Curie point reduces the transmitted flux by a factor of 3. In an alternative embodiment, Fig. 2 (not shown), the polepiece (4<SP>1</SP>) is in the form of a shunt or keeper across the magnet poles to inhibit the flux produced by the magnet until the keeper temperature reaches the Curie point. The keeper material linearly reduces transmitted flux by a factor of 3 over a range of temperature from 10‹ to 220‹ C.
Patent GB-1392840-A (GB)
Title: Polycyclic compounds
IPC: C07C49/643
Filed: 1972-11-10
Abstract: 1392840 Polycyclic compounds F HOFFMANN-LA ROCHE & CO AG 10 Nov 1972 [26 July 1972] 06293/74 Divided out of 1392839 heading C2C The novel compounds of Formula Ia or Ib wherein R v , R 7  and R 8  each independently represents a hydrogen atom or a C 1-6  alkyl or C 1-6  alkoxy group; R 2  represents a hydrogen atom or a C 1-6  alkyl or C 2-6  alkenyl group; R 3 , R 4  and R 5  each independently represents a hydrogen atom or a C 1-6  alkyl group; R 6  represents a C 1-6  alkyl group; R 9  represents a hydrogen atom or C 1-6  alkyl group and wherein the broken lines indicate that the bonds denoted thereby can be saturated or oleftnic bonds may be prepared by treating a compound of Formula II wherein R 1 -R 9  are as defined above, with mercury-(II) acetate in tetrahydrofuran or by hydrogenating a compound of Formula Ia or Ib which contains an olefinic double bond in the presence of a noble metal catalyst. Specific compounds disclosed are 3,4,4a,7,8,8ahexahydro - 3,4a,8 - trimethyl - 2,8 : 4,7- dimethano - 2H - 1 - benzopyran and 2,3,3a,6, 7,7a - hexahydro - 2,3a,7 - trimethyl - 2,7- ethano-3,6-methanobenzofuran. Odorant compositions comprise at least one compound of Formula Ia or Ib as an essential odour imparting ingredient, together with other known odorant components.
Patent GB-812788-A (GB)
Title: Method of making refractory articles and articles made thereby
Inventor: TEAGUE ERNEST DOUGLAS
IPC: B28B7/34
Filed: 1957-02-26
Abstract: A hollow refractory article, such as a gas sheath for arc welding, is produced by spraying the molten refractory material, e.g. zirconia or alumina, to a suitable depth on a former of graphite or carbon, and this is subsequently removed from the end p  product.  The former is obtained by machining a block of graphite to correspond to the interior hollow part of the article and this former is then sprayed with refractory material by sufficiently heating a rod of alumina with a flame in the presence of a blast of gas.  The graphite former may be removed mechanically or may be heated in a furnace to a temperature at least 200 DEG C. below the melting point of the refractory material so that the graphite oxidizes.  Specification 745,257 is referred to.
Patent GB-954833-A (GB)
Title: Detergent tablets
Inventor: SMALL FREDERICK IVAN GORDON
IPC: C11D17/00
Filed: 1960-02-23
Abstract: Detergent tablets comprise (a) an acyl isethionate or acyl methylisethionate in which the acyl radical is derived from a fatty acid having 12-18 carbon atoms; (b) a di-salt of an a -sulpho derivative of a saturated fatty acid having 12-18 carbon atoms; and (c) a plasticizier having a fatty or waxy nature, e.g. soap, fatty acids, fatty amides and alkanolamides, lanolin, petroleum jelly, ethylene oxide condensates with higher fatty acids, alcohols and alkylphenols, higher alkyl esters of phthalic acid, and partial fatty esters of polyhydric alcohols, (a) and (b) totalling 40-70%, preferably 45-65%, of the combined weight of (a), (b) and (c) and the weight ratio of (a) to (b) being 10 : 1 to 1 : 4, preferably 5 : 1 to 1 : 2. Component (b) preferably consists of the di-salt of a -sulpho acids derived from hydrogenated tallow or coconut oil, and the cations present in components (a) and (b) are the alkali metals, normally sodium, ammonium or substituted ammonium such as triethanolammonium; (a) and (b) are both preferably derived from hydrogenated tallow or coconut oil fatty acids.  Soap is generally present as plasticizer, but other plasticizers usually in amounts of not less than 10% nor more than 35%, and preferably 15-30%, of the composition are suitably also present; such plasticizers specifically mentioned are coconut fatty acid ethanolamide, stearic acid, tallow fatty acids, palm kernel oil fatty acid amide, the glycol monoester of hydrogenated tallow fatty acids and glycerol monostearate.  The composition generally also contains 4-10% water and is formed into tablets by milling and plodding; perfumes, opacifiers, dyes and small amounts of inorganic salts may be added at the milling stage.
Patent GB-123874-A (GB)
Title: Improvements in or relating to Agricultural Tractors.
Inventor: JOSE ERNEST JOHN HENRY DAVEY
IPC: B62D49/06
Filed: 1918-04-16
Abstract: 123,874. Jose, E. J. H. D. April 16, 1918. Adjusting centrally-pivoted axles for steering.-The front wheels c are mounted on a centrallypivoted dead axle which is deflected for steering by a. wormoperated chain n actuating a bevel-wheel Q.
Patent GB-556536-A (GB)
Title: Improvements in and relating to fluorescent electric lamps
IPC: H01R33/08
Filed: 1942-05-12
Abstract: 556,536. Lamp-holders. BRITISH THOMSONHOUSTON CO., Ltd, May 12, 1942, No. 6438. Convention date, May 16, 1941. [Class 38 (i)]  [Also in Group XI] A mounting for a tubular lamp comprises a lampholder 20 protruding through a reflector 23 to which it is attached by an adjustable device that enables lamps of different diameters to be located correctly in the reflector. At one end of the lamp a starting device 22 is provided and at that end the lamp holder has attached thereto a socket coupling 21 to receive the starting device and connect it in circuit, as described in Specification 544,562, the mounting of the socket being adjustable. The holder 20 is of the type having an annular space 27 to receive a pair of pin contacts on the lamp cap and guide them into engagement with spring contacts 31, 32. These are connected by screws 37, 38 to the electric supply, one of them 37 constituting a terminal for the direct connection of a lead entering through a slot 54 and the other 38 making connection to a plate 50 attached to one contact of a coupling located in the bottom of a recess 40 of the socket coupling 21 to receive the switch device 22. The counting 21 is secured to the lampholder 20 by the screws 37, 38 a spacer 72 being interposed when the coupling is to be lowered to correspond with the lower position of the reflector 23 in respect to the lamp holder, that is when a lamp of larger diameter is in use. The adjustment of the reflector is provided for by attaching the reflector to the flat part of a bracket 60 which is recessed at 69 to fit round the switch housing 22. Ears 61 on the bracket enter either of the slots 62, 63 in the lamp holder, an offset tongue 64 entering a recess 65, the bracket being inverted in changing it from one slot to the other and a screw 67 serving to secure the tongue 64 in the recess 65. When the reflector is in the higher position the spacer 72 is omitted so that the housing 22 still projects far enough through the reflector to allow its being gripped when it is to be removed. The socket fitting 21 is made reversible so that the switch housing 22 can be arranged outside the lamp holder 20, and it can be inverted as shown in Fig. 10, so that the housing is accessible from below.
Patent GB-718450-A (GB)
Title: Improvements in or relating to ripple reducing smoothing circuits
Inventor: BURDICK ROBERT HARRY
IPC: H02M1/14
Filed: 1952-03-12
Abstract: 718,450. Ripple reducing arrangements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 8, 1953 [March 12, 1952], No. 6455/52. Class 38(2) A smoothing circuit arrangement of the kind using a plurality of chokes 1, 2, 3 having ferro-magnetic cores with air gaps therein has at least two of the chokes mounted with their air gaps adjacent so that the leakage fields therefrom interact, as indicated at X; the directions of the lines of force in the coupled leakage fields being such that, and the spacing between the air gaps in the ferro-magnetic cores being such that, by virtue of the leakage field coupling the A.C. components of these fields tend to cancel. The choke windings are connected in series in the normal manner and associated with shunt condensers, the distance d between the chokes having a critical value at which the smoothing effect is a maximum.
Patent GB-491456-A (GB)
Title: Beer engine and like pumping apparatus
IPC: B67D1/02
Filed: 1937-03-04
Abstract: 491,456. Beer engines. POINTER, G. S. March 4, 1937, No. 6462. [Class 102 (i)] A beer pump, which is adapted to be attached to the side of a cask, is secured at its lower end to a tap 10 in the cask by means of a coupling 9. At the upper end a collar 17, slidable on an extension 20 of the pump casing, carries a pivoted arm 16, which slides in a sleeve 15, pivoted to a clamp 13 secured to the cask. The pump is operated by a handlever 6, pivoted in the extension 20, and carrying a toothed segment 5<1>, which engages a rack 4 on the bucket rod. A projection 27 on the bucket engages the suction valve 25 at the end of the downward stroke.
Patent GB-564398-A (GB)
Title: Improved household refrigerator
IPC: F25D23/12
Filed: 1943-04-22
Abstract: 564,398. Refrigerators. FRIGIDAIRE, Ltd., and ABBOTT, F. A. S. April 22, 1943, No. 6480. [Class 29] A drop hinged shelf 10 or a sliding shelf is fitted above the door 11 of the storage compartment of a domestic refrigerator, which may form part of a built-in or other kitchen cabinet, to serve as a support for articles to be stored &c. without impeding access to the refrigerator. The drop shelf may be supported by stays 10a, and forms the door of a compartment in front of the space for the compressor or other unit. Alternatively, the shelf may be supported by side wings guided by pin and slot, or a hinged drop door may be connected to a sliding shelf to form an extension of the shelf when lowered and drawn out.
Patent GB-997258-A (GB)
Title: Stereophonic fm receivers
IPC: H03D1/22
Filed: 1964-02-18
Abstract: 997,258. Stereophonic radio signal receivers. RADIO CORPORATION OF AMERICA. Feb. 18, 1964 [Feb. 27, 1963], No. 6816/64. Heading H4L. A demodulator for a composite stereophonic signal provided at the output of a frequency discriminator in a radio receiver, comprises means for separating a pilot signal from the composite signal and applying it in push-pull to a pair of transistors acting as a frequency doubler, and a detector circuit receiving the composite signal and the output of the frequency-doubler, the pair of transistors being biased so that a predetermined threshold level of pilot signal is required for operation of the frequency-doubler, and switching means reduce the threshold bias when the frequency-doubling circuit is operative. As shown, the composite signal from the frequency discriminator 8 is supplied to a transistor amplifier 18, the 19 kc./s. pilot signal being selected by a tuned circuit 32 in the collector circuit for application to the frequency-doubler 37, 38 and the composite signal being supplied from the emitter circuit via a filter 75, rejecting any additional unwanted (S.C.A.) signal, to the time division multiplex type detector circuit comprising diodes 61, 63, 65, 67 which also receives the 38 kc./s. switching signal from the frequencydoubler via a capacitor 55. A portion of the pilot signal is fed back via resistors 34 and 35 to the emitter of transistor 18 to balance out the 19 kc./s. component. The biasing of the transistors 37, 38 is controlled by a switching transistor 45 and during monophonic reception or when the pilot signal level is below the predetermined threshold value as determined by the potentiometer 50, the transistor 45 is non-conductive so that its collector potential is approximately that of the source 30 and the indicator lamp 48 is extinguished. The positive potential at the collector of transistor 45 is also supplied to the anodes of diodes 63, 65 so that they conduct and identical monophonic signals are supplied to the L and R output channels. The voltage at the junction of resistors 46, 47 is supplied via the potentiometer 50 and diode 52 as reverse bias to the transistors 37, 38. An acceptable level of pilot signal overcomes this bias and develops a voltage across resistor 44 to cause transistor 45 to conduct and its collector voltage to become less positive, thus reducing and finally removing the reverse bias on transistors 37, 38. When the transistor 45 is saturated, the indicator lamp 48 lights and the positive voltage is removed from the diodes 63, 65. The arrangement is such that the pilot signal level may fall somewhat below the predetermined level before the operation of the frequency-doubler is prevented. The L and R signals from the demodulator are supplied via respective conventional de-emphasis circuits to transistor amplifiers 81, 83, crosstalk being balanced out by a potentiometer 88 common to the emitter circuits.
Patent GB-683265-A (GB)
Title: An improved carrier-frequency installation for communication between mobile and stationary stations
IPC: H04J1/00
Filed: 1951-03-22
Abstract: 683,265. Communication over power lines. HASLER AKT.-GES. WERKE FUR TELEPHONIE UND PRAZISIONSMECHANIK. March 22, 1951 [Dec. 6, 1950], No. 6856/51. Class 40 (iv). [Also in Group XXX] In a carrier-frequency system for communication between an electrically-driven vehicle L1 and a fixed communication network, a carrier frequency line S, E is arranged along the track and is connected to separate sections a, b, c of conductor rail or contact line F. The lines S, E terminate in a public telephone network and provide up to 30 two-way channels. The carrier frequency is transmitted as a pilot to effect volume control of the line amplifiers I-IV and echo-suppressing arrangements may be incorporated in the amplifiers H and V to block out any noise induced in conductor rails not in use. The system which is intended for public train telephone service provides full dialling facilities from the train and the provision of coin-freed apparatus is suggested.