baber/WOPTO huggingface dataset:
Patent GB-1071920-A (GB)
Title: Preparation of time stable tunneling diode films
IPC: H01L27/00
Filed: 1965-02-16
Abstract: 1,071,920. Semi-conductor devices. SPERRY RAND CORPORATION. Feb. 16, 1965 [Feb. 26, 1964], No. 6609/65. Heading H1K. The thin (10 to 60 ) insulating layer of a tunnel diode comprising such a layer sandwiched between metallic electrodes is degassed by treatment at room temperature in a vacuum. The vacuum treatment, which takes place after the layer has been applied to one of the electrodes, may be followed by a separate heat treatment at a temperature above 100 C. This heat treatment may take place before or after the second electrode is applied and should be in an inert atmosphere or vacuum. Specified as suitable insulants are the oxides of Al, Ta, Cr, Pb, Zr, Mo, Ti, V, Ni, Fe, Co. Layers of these oxides may be formed by direct oxidation of the surface of a substrate of the corresponding metal, which serves as one of the electrodes. They may also be deposited on these or other metals, e.g. anodically. The electrodes may thus be of any of the above metals, but the following metals are also specified as suitable: Au, Ag, Zn, Mn, Sn, Pt, Cu, W, Pd.
Patent GB-1088145-A (GB)
Title: Switching device for sound reproducing system
IPC: H04R3/00
Filed: 1965-02-16
Abstract: 1,088,145. Sound playback system. IMPULSELLER Inc. Feb. 16, 1965 [Feb. 20, 1964], No. 6708/65. Heading G5R. [Also in Division H4] A plurality of sound sources, which are connectible one at a time to an amplifier, are so arranged that in the absence of sound from the source currently connected to the amplifier one of the other sources is automatically connected thereto. The system is particularly for use in a broadcasting system in which advertising matter is inserted in pauses between musical items. The sources may be disc or tape records. In use a gramophone motor 10 is connected via relay contacts 14, 13 to an A.C. source 12, while the pickup 16 is connected via contacts 20, 19 to a transistorized pre-amplifier 18 and power amplifier 26. A portion of the signal in 18 is applied to a further amplifier 28, 32, an R.C. delay network 70 and a relay 35 which stays up as long as a signal from the pick-up occurs. The R.C. network ensures that short pauses in the signal do not lead to premature release. When 35 does fall back, however, it causes a uniselector 39 to step once. Relay 15 thereby energizes and switches on alternative motor 11 and pick-up 55. The uniselector contacts are wired so that the alternative pick-up need not be brought into use at each step of the uniselector but only operates after, say, every third musical item. The preset programme may be interrupted by opening switch 48, or, pick up 16 may be used exclusively by opening switch 49.
Patent GB-398487-A (GB)
Title: Improvements in electric control systems for fuel burners
IPC: F23N5/20
Filed: 1932-03-05
Abstract: 398,487. Electromagnetic relays. RITCHIE, A., 51, Airlie Gardens, Hyndland, Glasgow. March 5, 1932, No. 6718. [Class 38 (v).] . In an arrangement of relays for controlling fuel burners, a relay is arranged with a starting and running holding circuit, each circuit being in series with a resistance in the starting holding circuit the resistance being'arranged in proximity to a thermal switch so that it can act as the heating coil for the thermal element. A second relay is also employed, the circuit of which is completed automatically after the energization of the main relay, the second relay on operation interrupting the starting circuit of the main relay and completing the running circuit for this relay, but should for any reason the second relay not be energized after a predetermined time limit, the heat generated in the resistance of the starting holding circuit operates the thermal switch to interrupt the starting holding circuit and thereby. de-energize the first relay. As shown in Fig. 1, the circuit of the first relay a is completed by closure of the thermal switch 4 when the fuel heater c reaches a predetermined temperature. The circuit of the relay a includes a resistance a<1> which is placed in proximity to a series-connected thermal switch a<2>. Circuits completed by the relay a comprise that of the motor d, of the burner unit, an ignition circuit e and a pyrostat f. The latter on being heated completes the circuit of the second relay b which on operation changes over the circuit of relay a to an alternative running circuit including a resistance a<3> and thermal switch a<4>. The thermal switch a<4> on being heated by resistance a<3> then opens the circuit of the ignition device e, and the circuits then correspond to the normal running position. If ignition does not take place the thermal switch a<2> will have operated to complete the circuit of a signal lamp and also may complete the circuit of an audible alarm. The operation of the thermal switch a<2> also breaks the circuit of relay a and stops the motor d, the thermal member a<2> being restored manually after operation. The running circuit of relay a includes an aquastat g and roomstat h which are operated respectively to break the relay circuit on excess temperature of a boiler flue or of a room or space to be heated. Specifications 337,093, [Class 38 (v), Electric switches &c.], and 368,339 are referred to.
Patent GB-122563-A (GB)
Title: Improvements in Condensers and Coolers for Steam and other Fluids.
Inventor: BROWN ARTHUR WHITTEN
IPC: F28D7/12
Filed: 1918-04-22
Abstract: 122,563. Brown, A. W. April 22, 1918. Field-tube apparatus.-In a condenser or cooler of the kind in which the cooling fluid flows through Field tubes 8 surrounded by jackets 11, through which the fluid to be condensed or cooled is directed in close contact with the tubes, the internal tubes 7 of the Field tubes are provided with heat-insulating coverings 12. Heat-insulating coverings may be applied also to the jackets around the tubes.
Patent GB-885397-A (GB)
Title: Improvements in and relating to grinding machines for gear wheels
Inventor: LINDIG JOHANNES
IPC: B23F19/00
Filed: 1959-02-26
Abstract: 885,397. Gear-grinding. GROSSDREHMASCHINENBAU 7 OKTOBER VEB. Feb. 26, 1959, No. 6788/59. Class 83 (3). [Also in Group XXIII] A gear-grinding machine comprises means 35 for also grinding the axial bore in the gearwheel. The work-holder assembly 2 is adjustable about a pivot 34 for helical gears. The blank 3 is clamped to a rotary holder 1 by a rotary flange 11 on a slide 9 pressed downwardly by a fluid-pressure device 5. The slide 9 also carries the grinding wheel 36 and its feed cylinder 14 for machining the bore of the gear while it is clamped merely by the flange 11. For grinding the teeth with a hob 37, a piston 18 is moved upwardly and pins 23 are moved outwardly against spring fingers 26 by a conical plunger 27. The plunger is then clamped downwardly, causing the pins 23 to engage the flange 11 and clamp the gear more firmly.
Patent GB-673416-A (GB)
Title: An improved method of producing moulded bodies, such as fibrous boards, from vegetable fibrous materials, and products thus obtained
IPC: C08H8/00
Filed: 1950-03-20
Abstract: 673,416. Moulded fibrous bodies or boards. HELLEFORS BRUKS AKTIEBOLAG. March 20, 1950 [March 24, 1949], No. 6842/50 Class 96. Wood, e.g. as saw-dust, or as shavings, or straw, bagasse or bamboo &c., e.g. in pieces passing a ¢ cm. screen, is lightly ground &c. in a Jordan or Hollander &c. in dilute alkali (0.05 to 0.70 per cent, preferably 0.1 to 0.2 per cent, calculated as sodium hydrate). There may be an alkaline pre-treatment, e.g. for 16 hours in 0.05 per cent alkali at room temperature. Moulded bodies or boards are formed which may be of good bending strength, low waterabsorption, and may be sawn &c. without splitting &c. Binders may be added.
Patent GB-698438-A (GB)
Title: Improvements relating to direct current electric power transmission systems employing valve converters
Inventor: BUSEMANN FELIX
IPC: H02M7/51
Filed: 1951-03-22
Abstract: 698,438. Converting. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. March 12, 1952 [March 22, 1951], No. 6918/51. Class 38 (ii). In a D.C. power transmission system which feeds an A.C. line 25 through an inverting arrangement which may comprise mercury vapour converters 1-6 connected in double three-phase bridge arrangement between D.C. line 20 and earthed centre point 22 and a similar arrangement (not shown) between the centre-point and the other D.C. line, and which is fed by rectifiers at the distant end, a protective device operates upon a sudden rise of current in the line caused by a reduction of the voltage of A.C. line 25. The protection consists in advancing the firing angle of the converters for a time to allow the fault on the A.C. line to clear. The sudden rise of current induces a voltage across the smoothing choke 23 and in the winding 31 coupled thereto, and closes a relay VR, the coil of which is connected across a potentiometer 35 supplied from winding 31 through a filter 32, 33 which blocks normal ripple. The coil of a main relay MR which is in series with the contacts of relay VR and the normally closed contacts of timing relay TR and (41) of anti-hunt relay AH across D.C. supply 36, is energized and closes contacts 37, 39, 38, respectively to advance the phase angle of the grid impulses, to complete a holding circuit for relay MR excluding the contacts of relay VR, and to energize relays TR and AH. Relay TR opens after a set delay to de-energize relay MR and allow the inverters to fire normally. While voltage across reactor 23 persists relay MR recloses and the cycle is repeated, until after a predetermined number of operations, relay AH operates, closing hold-in contact 42 and opening contacts 41 to break the supply to relay MR permanently until reset switch 43 is opened. In a modification, Fig. 2 (not shown), relay VR is replaced by a triode which is fired by a voltage on its grid derived from a transformer across the smoothing choke. Fig. 3 shows how the phase of the inverter grid volts, derived from points 69, 79 of a bridge comprising the centre-tapped secondary winding 66 of a transformer, resistance 68 and saturable inductance 69 may be suddenly changed by short-circuiting a resistance 73 in series with the saturating winding 70 of inductance 69 upon closure of relay 74 energized when relay MR operates.
Patent GB-555879-A (GB)
Title: Improvements in or relating to means for adjusting inaccessible elements
IPC: H01J21/08
Filed: 1942-05-22
Abstract: 555,879. Adjusting wireless apparatus. STANDARD TELEPHONES & CABLES, Ltd. May 22, 1942; No. 7004. Convention date, May 31, 1941: [Class 37] [Also in Group XXVI]  An adjustable element 22, such as an electrical impedance, an electric switch or a fluid valve, is mounted inside an hermetically sealed container 4 which is closed by means of a corrugated phosphor bronze diaphagm 6 through which passes in sealed fashion an operating lever 48 engaging a socket 50 in a disc 43, rotation of which effects adjustment of the element 22. Movement of the rod 48 is effected by its engagement at 46 in a graduated knob 40 rotatable in a member 41. In a modification, Fig. 1 (not shown) the disc 43 is moved by intermittent engagement of a spring pawl on the operating lever when the lever is rocked by direct hand operation, The outer end of the lever may be removed after the adjustment is completed. The pawl may be arranged to rest on the disc after adjustment and serve as a locking device, or it may be free of the disc so as to prevent unintended further adjustment.
Patent GB-330269-A (GB)
Title: Improvements in or relating to electrical connecting devices
IPC: H01R33/46
Filed: 1929-03-04
Abstract: 330,269. Bray, A., Bray, G., and Bray & Co., Ltd., G. March 4, 1929. Holders. - In electrical couplings of the lamp-holder or like type wherein leads b are gripped between the end of an insulating tubular element g and the top of the contact block c to relieve the terminals of the weight of the device, the tube g, which is actuated by a screwed cap h engaging a shoulder g<2> on the tube, is constrained to move axially only, thus avoiding fraying the leads, by means of a projection k on the dome a co-operating with a groove i in the tube. The tube g is prevented from falling out during assembling, by co-operation of the projection k with the closed upper end of the groove i. The screwed cap h may be permanently attached to the dome a by turning in a tip h<2> below the screw threads, the tube, cap, and dome then forming a unit. The gripping end of the tube may have circular corrugations &c.
Patent GB-374145-A (GB)
Title: Improvements in electrostatic apparatus for separating particles of dust in suspension in a gaseous fluid
IPC: B03C3/51
Filed: 1931-03-06
Abstract: <PICT:0374145/III/1> <PICT:0374145/III/2> <PICT:0374145/III/3> <PICT:0374145/III/4> <PICT:0374145/III/5> <PICT:0374145/III/6> <PICT:0374145/III/7> <PICT:0374145/III/8> In apparatus for the electrical purification of gases, several deposit electrodes b are formed by a single length of metal which is bent to form sharp vertical edges f located transversely to the gas current, the concave parts of such electrodes being opposite to the ionizing electrodes a and further from the latter at all points than are the edges f so that passages are formed down which the deposited material can fall by gravity.  Examples of forms which may be given to the deposit electrodes are shown in Figs. 1-4.  Both surfaces of the deposit electrodes may be utilized. The ionizing electrodes may consist of wire, rod, &c. of suitable cross section, but are preferably given the forms shown in Figs. 5-7, having edges a<1> preferably directed towards the corresponding edges f of the deposit electrodes.  The Specification as open to inspection under Sect. 91 (3) (a) states that the deposit electrode may be discontinuous and may be arranged as shown in Fig. 8 (Cancelled) with external portions b<0> and internal portions b<00> having passages u between to form vertical expansion chambers x wherein the dust particles will fall to the bottom of the apparatus.  This subject-matter does not appear in the Specification as accepted.
Patent GB-144817-A (GB)
Title: Improvements relating to shoe fitting stools
IPC: A43D1/02
Filed: 1919-03-21
Abstract: 144,817. Brooks, G. G. March 21, 1919. Foot-stools.-A shoe-fitting stool is provided with a foot measure, attached thereto or forming a part thereof. The measure may comprise a pivoted heel-piece H and a spring-controlled slidable toe-piece G. A shield or protecting device for the upholstered portion of the stool may be provided, and may consist of a sheet of fabric mounted on a spring roller and withdrawable by means of the ring M.
Patent GB-936137-A (GB)
Title: Ion source with space charge neutralization
IPC: H01J27/04
Filed: 1962-02-26
Abstract: 936,137. Discharge apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. Feb. 26, 1962 [March 27, 1961], No. 7352/62. Class 39 (1). A plasma gun e.g. for space propulsion or for injecting plasma into a thermonuclear reactor comprises an ion source through which a beam of ion-neutralizing electrons are projected with sufficient energy to emerge with the ions. In Fig. 1 the ion source consists of an enclosure 14 and a cathode 16 and an anode 17 between which an arc discharge is struck in deuterium gas supplied at 18. A shield is provided at 15 and the outlet plate 20 has a tungsten insert 21. The electrode 22 between the outlet plate 20 and the extractor electrode 24 is electrically floating and is stated to increase the current output. The electron source includes a directly or indirectly heated filament 1, a hollow anode 2 to which argon is supplied through tubing 3 and a shield electrode 8 and accelerator electrode 10 which are connected together. A gas arc is struck between the cathode 1 and the anode 2. A collimating magnetic field H is provided. In a modification, Figs. 4 and 5 (not shown), the electron source comprises a hollow tubular cathode coaxial with a hollow anode. Gas is supplied to the rear end of the hollow cathode and a hollow arc discharge is struck between the cathode and the anode. A door may be provided to cover the inlet aperture to the ion source when the electron source is not required. In a complete plasma injector device, Fig. 2, the electron source 28 and ion source 65 are surrounded by collimating magnetic coils 52, 57 and intermediate coils 53 to 56 and further coils 58 to 61 which are provided have housings electrically connected to provide accelerating fields. To provide a higher density final plasma beam, coils 53 to 56 and 58 to 60 with associated accelerating stages may be eliminated, Fig. 3 (not shown). Specification 905,428 is referred to.
Patent GB-647561-A (GB)
Title: An improvement in or relating to tapping machines
IPC: B23G1/16
Filed: 1948-03-11
Abstract: 647,561. Controllers. KITCHEN & WADE, Ltd., and WALKER, D. March 11, 1948, No. 7426. [Class 38(iii)] [Also in Group XXII] A controller for reversing electric motors in a tapping machine, (see Group XXII), comprises contacts p<SP>1</SP>, p<SP>2</SP> on a spindle p adapted to be actuated by a lever r for controlling the elevating motor for the radial arm of the machine, and contacts a, a<SP>1</SP> on a spindle b which is operated by a lever c in a gate e so as to bring either of the contacts #, a<SP>1</SP> into engagement with its fixed contact d, d<SP>1</SP> in order to operate the motor driving the tapping spindle k. Notches e<SP>1</SP>, e<SP>4</SP> and e<SP>2</SP>, and the end position e<SP>3</SP> in the gate e correspond, respectively, to " forward ", " automatic reverse ", " off " and " reverse " settings of the lever c. The latter is adapted to be ejected automatically from the notch e' by means of a spring-pressed plunger f after which it is urged by a spring m, Fig. 4, into the "reverse" setting e<SP>3</SP>. The plunger f is raised to eject the lever c by means of a cone-cam g advanced by pivoted-action of a bell-crank lever h caused by engagement between a pin i and abutment i<SP>1</SP> which is rotated by a disc j connected through a rack k<SP>1</SP> and pinion j<SP>1</SP> to the spindle k. A spring-urged rod r<SP>1</SP> is adapted to engage either in a V-recess b<SP>3</SP> in a block b<SP>1</SP> fixed to the spindle b or in a hole provided in a plate r<SP>2</SP> secured to the lever r so as to prevent both motors from operating at the same time.
Patent GB-798220-A (GB)
Title: Improvements in or relating to the latent heat cooling of thermionic valves
IPC: H01J19/36
Filed: 1956-03-09
Abstract: 798,220. Cooling thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. (Laboratoire Centrale de Telecommunications, Soc.- Anon.). March 9, 1956, No. 7446/56. Class 39(1). The projecting external anode of a valve used with an evaporative cooling system has a set of protuberances, and transverse bars or strips running close to the anode surface and the protruberances, and conforming to their contour, so as to form a grid-like structure which ensures that the liquid flow against the anode is always turbulent. In Fig. 3 the central anode has a number of wide fin-like protuberances 20 ... 24, and the grid-like structure is shown in dotted outline, closely conforming to the anode contour. The grid is formed from the sheet metal structure of Fig. 4, slotted as shown. The strips in each vertical column (i.e., 17, 19 &c.) may advantageously be slightly bent inwards and outwards alternately. The anode is cooled by a closed liquid circulatory system, Fig. 1 (not shown), in which the pipe leading from the boiler to the condensing chamber is constricted by an adjustable regulator, so that the pressure in the boiling chamber can be increased, thus raising the boiling point of the liquid.
Patent GB-1399494-A (GB)
Title: Antibacterial laundry oil and dust control composition
IPC: C11D3/48
Filed: 1972-07-21
Abstract: 1399494 Mineral oil compositions SUN OIL CO 21 July 1972 [1 Oct 1971] 7480/74 Divided out of 1399493 Heading A5E [Also in Division C5] A bactericidal composition comprises a major portion by weight of a mineral oil and a minor portion by weight of a 1, 2- benzoisothiazolone of the formula: wherein R is H or a halogen atom and watersoluble salts thereof. The compositions may be used to impregnate fabrics such as dust mops, dust cloths and walk-on rugs or mats, or to launder such fabrics.
Patent GB-1142641-A (GB)
Title: Universal joint with an axially movable shaft
IPC: F16D3/00
Filed: 1966-02-21
Abstract: 1,142,641. Universal joints; shaft couplings. DEMAG A.G. 21 Feb., 1966 [24 March, 1965], No. 7563/66. Heading F2U. In a universal joint of the kind wherein torque transmitting balls 3 engage grooves in outer and inner member 1, 2, the inner member 2 is connected to a shaft 4 by balls 7 engaging axial grooves 6, 6<SP>1</SP> in the member 2 and shaft 4, thus permitting relative axial movement between the member 2 and shaft 4. The balls 7 are maintained in spaced relation by a cage 5 connected to levers 8 between the member 2 and shaft 4. In Fig. 2 (not shown), the above joint is in series with another universal joint.
Patent GB-738158-A (GB)
Title: Electroplating process and compositions
Inventor: CHESTER ALLAN E
IPC: C25D3/56
Filed: 1952-03-24
Abstract: 738,158. Electrodeposition of zinc-copper alloys. POOR & CO. March 24, 1952, No. 7567/52. Class 41. Dithiobiuret is added to an alkaline zinc copper cyanide bath, in amount, e.g. 0.5- 12 gms. per U.S.A. gallon, in order to extend the range of current density for which white alloys may be deposited. Zinc may be present in the bath as a zinc aldonate, preferably zinc gluconate. The weight ratio of zinc to copper in the bath may be from 85 : 15 to 70 :30. The weight ratio of total cyanide to total plating metal should be within the range 2.35 to 2.55. Brightening agents may be present which may be the reaction products described in Specification 715,849, also furfural or anisic aldehyde or piperonal each dispersed with gluconic acid, a reaction product of gelatine or of a protein rich seed meal with an aldonic acid and furfural. An example of the preparation of a bath is described which is identical with that described in Specification 717,212 except that dithiobiuret is substituted for zinc dimethyl dithiocarbamate. Chromium may be directly plated on to the alloy deposit without buffing. Specifications 641,435 and 693,592, [Group IV (b)], are referred to.