baber/WOPTO huggingface dataset:
Patent GB-1466291-A (GB)
Title: Joy stick control mechanism for controlling motor input power polarity
IPC: G05G9/047
Filed: 1974-05-17
Abstract: 1466291 Retractive switches ITT INDUSTRIES Inc 17 May 1974 [4 June 1973] 22091/74 Heading H1N A control mechanism of the "joystick" type comprises a support body 76 having a cylindrical bore 74 therethrough extending from a front face to a rear face thereof, said bore having a smaller diameter portion 82 opening at said front face and a larger diameter portion 84 opening at said rear face, said portions being joined by an annular shoulder 86, a pivot shaft 12 extending axially through said bore beyond said front and rear faces, and having first and second sections 70 and 72 respectively positioned in bore portions 82 and 84, an outwardly extending flange 88 on said second section 72 adjoining said first section with a clearance from bore portion 84 to permit said shaft to be pivoted about an axis 91 extending laterally approximately through the longitudinal axis of said second section 72 adjacent said flange 88, spring means 100 biasing said flange 88 against said annular shoulder 86 to resiliently retain said shaft 12 axially aligned in said bore 74, an insulative plate 16 surrounding said shaft 12 adjacent the rear face of the body 76 and fixed relative thereto, a pair of contacts 20, 22 mounted on the side of said plate 16 opposite said body 76, a laterally shiftable annular printed-circuit board 50 closely surrounding said second section 72 of shaft 12 and having spaced inner and outer circular conductive layers 54, 56 thereon facing said contacts 20, 22, but out of engagement therewith when said shaft 12 is axially aligned in said bore 74, said pivot shaft 12 being pivotable in opposite directions from said alignment to two respective positions, in one of which contact 20 engages layer 56 while contact 22 engages layer 54 and in the other of which contact 20 engages layer 54 while contact 22 engages layer 56. A handle 108 is mounted on upper section 70 of shaft 12 and a rubber boot seal 106 is sealed to its lower surface 110 and is engaged with upper portion 102 of body 76. The printedcircuit board 50 is preferably free-floating and urged upwardly by conical spring 118. The shaft 12 may also be pivoted in the plane perpendicular to the drawing and two more fixed contacts (24, 26, Fig. 2, not shown) are provided so that two motors (M1 and M2) may be controlled.
Patent GB-673050-A (GB)
Title: Improvements in or relating to radio range-indicating systems
Inventor: O'BRIEN WILLIAM JOSEPH
IPC: G01S11/08
Filed: 1950-09-07
Abstract: 673,050. Radio - navigation. DECCA RECORD CO., Ltd. Sept. 7, 1950, No. 22117/50. Class 40 (vii). A radio range indicating system for determining the range of a vehicle, such as an aircraft, from a fixed transmitter radiating a signal of highly stable frequency comprises an oscillator unit carried on the vehicle, means for synchronizing this unit with the transmitter signal immediately before the commencement of a journey, and an indicator on the vehicle showing the phase difference between the signal received from the transmitter and the output from the oscillator unit. It is proposed that the transmitting station should have a short time stability of one part in 10<SP>10</SP> and the oscillator unit carried by the craft a stability of the order of one part in 10<SP>9</SP>, the system at present being limited to short journeys. The transmitter preferably includes an automatic phase control system as described in Specification 656,124 and in order to synchronize the craft oscillator unit with it the unit (9) is made so that it may be removable from the aircraft. The synchronizing arrangement in such a case may comprise a receiver 6 receiving the transmitter signals followed by a phase adjuster 7 and a phase difference determining device and indicator 8 also fed with the oscillator output. The oscillator frequency is made variable over a small range as by a variable condenser movable by detachable shaft. 10 driven by adjusting arrangements 11 and 12. The first step in the synchronization is a manual adjustment by means of knob 12 to maintain the phase difference shown by indicator 8 as nearly as possible constant. For the second step fine adjustment is made by applying the output voltage from the phase discriminator to control the mechanical frequency adjuster 11 which may comprise a motor driven by the control voltage to cancel the operating phase difference. In this way the frequency of the unit 9 hunts about the correct frequency and finally reaches it. A step-by-step method of approach to the correct frequency may also be used and the frequency of the signals applied to the discriminator multiplied to increase the sensitivity. When the unit 9 has been synchronized it is placed on a trolley for transfer to the aircraft 15. The trolley is provided with power supplies and a quick transfer of connections is made when loading on to the trolley and on to the aircraft. Condensers are provided in the oscillator power circuits with sufficient capacity to maintain the oscillations during the change-over. 'The frequency of the oscillator unit and that of the transmitter need not be the same but may be harmonically related and compared at a common frequency. It is preferred that the radiated signal be the actual signal used but the transmitted stable frequency signal could be radiated as a modulation on a high-frequency carrier.
Patent GB-1263381-A (GB)
Title: Metal contact and interconnection system for nonhermetic enclosed semiconductor devices
IPC: H01L23/522
Filed: 1969-05-01
Abstract: 1,263,381. Semi-conductor devices. TEXAS INSTRUMENTS Inc. 1 May, 1969 [17 May, 1968], No. 22235/69. Heading H1K. [Also in Division C7]  A contact layer in ohmic connection with a region of a semi-conductor body comprises a layer of molybdenum containing a homogeneously distributed additive comprising from 3-60% by weight of the layer which additive increases its resistance to corrosion in moist environments. The specified additives in order of preference are titanium, tantalum, chromium, zirconium, hafnium and silicon. For good ohmic contact the contacted regions should be highly doped, e.g. with > 2 x 10<SP>19</SP> atoms cm.<SP>-3</SP> of boron or phosphorus introduced if necessary in an auxiliary diffusion step. Alternatively the surface can be thinly coated with aluminium or with platinum which is sintered to form a platinum silicide layer. Typically electrodes with bonding pads are formed on a planar oxidepassivated transistor element by RF sputtering in a low pressure argon atmosphere from a cathode fabricated from titanium and molybdenum powder to form an overall layer 2500 Š thick which is covered with a 10,000 Š layer of gold deposited in the same sputtering apparatus or by evaporation. The electrode pattern is formed by photoresist masking and etching steps using specified etchants. The element is finally mounted on the central one of parallelstrips, with gold wire emitter and base connections to the outer strips, and potted in plastics by a transfer moulding process. Part of an integrated circuit consisting of a number of interconnected sub-circuits each as in Fig. 9 (not shown) is seen in Fig. 12 with two layers of interconnections forming respectively the internal connections of the sub-circuits and the connections between them. The first layer of interconnections are form etched from an overall layer 116, 117, 118 consisting of 7500 Š of gold or copper sandwiched between 1200 Š layers of molybdenum or molybdenum-titanium. A 20,000 Š layer 119 of silicon oxide, or of silicon nitride, alumina or organic insulator is then formed by evaporation or sputtering and selectively etched to expose parts of the interconnection pattern to be contacted. Molybdenum is then removed from these parts V prior to deposition of an overall 1200 Š thick layer 120 of molybdenum-titanium and a 7500 Š overlayer 121 of gold. These layers are next patternetched to form the intercircuit connections and wires thermocompression bonded to the terminal points of the completed circuit.
Patent GB-315883-A (GB)
Title: Improvements in or relating to speed indicators
IPC: G01P3/44
Filed: 1929-07-19
Abstract: 315,883. Etablissements E. Jaeger, (Assignees of Planiol, J. H.). July 20, 1928, [Convention date]. Electric and magnetic speed indicators.-Comprises a construction of electric speedometer and drive therefor. A resistance 1 is wound on a ring and is fed at two opposite points 2, 3 by a source of direct current 4. Brushes 5, 6, 7 on the shaft 8, the speed of which is to be measured, pass over the resistance 1 and the multiphase currents pass to a receiver comprising an asynchronous motor. The multiphase currents from the brushes 5, 6, 7 are sent in windings 9 only one of which is shown. These windings have a core 10 and the magnetic flux closes through a part 11. In the air gap between the parts 10, 11 is arranged a metal bell 12 mounted to rotate about an axis 13, 15 against the influence of a torsion spring 16. The amount of rotation of the bell corresponds to the speed of the shaft 8 and is indicated by a pointer 17. Means are described for compensating for variation in potential of the battery 4. The shaft 8 may drive the distance counter through a worm and cam switch device electrically, or the counter may be actuated by a metal element rotating in the air gap of the receiver and subjected to a braking torque proportional to the speed as in known power meters.
Patent GB-1282840-A (GB)
Title: Improvements in or relating to coffee percolators
IPC: A47J31/053
Filed: 1971-04-19
Abstract: 1282840 Coffee percolator SUNBEAM CORP 19 April 1971 [30 June 1970] 22453/71 Heading A4D An electric percolator comprises a base 12, a glass vessel 13 and a heater assembly 67 that includes pump well 22, a first heater 69 mounted in conducting relationship with the underside of the pump well and a second heater 73 disposed above the first, the glass vessel having a bottom opening making sealing engagement with the outer periphery of the heater assembly. In use heater 69 boils the water in the well and percolation takes place in the normal manner, the water passing up tube 18 and down through coffee basket 16. When the coffee has brewed and the temperature in the vessel reaches a manually preselected temperature, bimetal (82), Fig. 2 (not shown), opens contacts (84) and heater 73 is connected in series with the first heater 69. This series connection lessens the current so that the total heating effect is sufficient to keep the coffee warm but is two small to cause re-percolation. The glass vessel is fixed to the base by a latch 45 attached to the handle 33.
Patent GB-357324-A (GB)
Title: Improvements in electrical switchgear
IPC: H02B13/035
Filed: 1930-07-25
Abstract: 357,324. Switchgear structures. DAVIES, D. R., 14, Ruabon Road, Didsbury, near Manchester, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. July 25, 1930, No. 22496. [Class 38 (v).] In switchgear for connecting a cable with a bus-bar, or with alternative bus-bars, or with other cables, the oil circuit-breaker itself together with its terminal isolating contacts is adapted to rotate on a vertical axis for isolating and bus-bar &c. selecting purposes. In the arrangement shown applied to the connection of a cable 1 to alternative bus-bars 2, 3, the oil circuit-breaker with its feed contacts 6, 7 and movable bridging contact 4 is mounted on a turntable 5 between the busbars. The rotary portion comprises the oil tank and its contents and two auxiliary oil-filled tanks 11, 12 from which depend the selector contacts 15, 16, carried by insulators and strip-connected at 17, 18 to the contacts 6, 7. Between the main oil tank and the auxiliary tanks a flanged plate 34 is arranged (with orifices for the various insulators) and the plate covers the mouths of two fixed sector-shaped oil chambers 19, 20. Chamber 19 carries two spaced-apart fixed contacts both connected to the same cable and chamber 20 carries two contacts 24, 24<1> connected to the alternative bus-bars. The switchgear is shown in Fig. 3 in the isolated position in which (at the end shown) the control 16 which rotates with the switch tank as a whole is in connection with neither of the bus-bar contacts 24, 24<1>. At the other end (not shown in Fig. 3) the movable contact 15 is midway between the contacts 23 connected with the cable. By rotating the oil tank about its turntable in a particular direction a chosen bus-bar may be connected with the cable, and by returning the tank to the mid-position the circuit-breaker may be again isolated. The circuit-breaker is shown adapted for operation by the solenoid 41 and, by interlocking of the closing and tripping circuits, all three circuit-breakers of a three-phase system may be closed and opened together. The isolating contacts may be earthed in the intermediate position.
Patent GB-690367-A (GB)
Title: Rotary plug cock, especially a cock provided with a ball-like plug
IPC: F16K27/06
Filed: 1951-09-26
Abstract: 690,367. Casting composite articles. NEUE ARGUS GES. Sept. 26, 1951 [Sept. 29, 1950], No. 22519/51. Class 83 (i). [Also in Group XXIX] The casting 2 of a rotary spherical plug-cock is cast around the plug 1, both parts being made, e.g. of brass. To enable the plug to lie loosely within the casing it is covered with a layer of soot which may be removed after casting. Alternatively, the casing may be cast closely around the plug which is subsequently lapped in after it has been loosened by heating the casing. The plug has a tongue and slot connection 4, 9 with an operating-spindle 5 which has screwed engagement with the casing at 7-and carries a packing ring 8. Alternatively, the spindle may be integral with the plug. The plug may have a number of fluid passages.
Patent GB-350793-A (GB)
Title: An improved tobacco pipe
IPC: A24F5/04
Filed: 1930-07-28
Abstract: 350,793. Tobacco pipes. ANDERSSON, A., 16, Holstenstrasse, Wandsbek, Germany. July 28, 1930, No. 22656. [Class 130.] A removable bowl a with vertical flutings b in the main surface is connected to the mouthpiece f by an interchangeable smoke tube g fitted in the stem i and made of straw, paper, &c., which is given a pleasing taste and smell, for instance, by boiling or steeping in a solution of saccharin and vanilla. An intermediate tube h in the stem has a screw-threaded outer end k on which the mouthpiece f is screwed, and is closed at the bowl end by a plug l. The stem i is connected to the bowl by a packing ring n, preferably of cork, fitted on the tube h, and an outer ring o.
Patent GB-337403-A (GB)
Title: Method of and apparatus for varying illumination
IPC: G01J1/42
Filed: 1929-05-24
Abstract: 337,403. Hilger, Ltd., A., and Twyman, F. May 24, 1929. Divided on 329,712. Photometric apparatus.-Comprises a method of and apparatus for automatically varying the illumination of a surface in a progressive manner, and is described in connection with photographic printing by projection with a standard time of exposure of a succession of negatives or originals. The negative to be copied or enlarged is placed in a holder 5 beneath a light diffuser 9 into which light from the source 6 enters by way of the aperture 7 in front of which is rotatable an apertured screen 1 as shown. A portion of the light passing through the negative is reflected by a transparent mirror on to a photo-electric cell A, Fig. 4. The current through the cell A due to the illumination under the voltage applied from the terminals flows through the resistance B associated with the grid of a thermionic relay C, and through the moving coil of a relay E, adapted to close either of the secondary contacts on a variation of the illumination from the predetermined standard. Upon closing either of these contacts the corresponding electromagnet of a power relay G is energized to close contacts in the circuit of the motor H, which is connected with the screen 1 and rotates it until the illumination is such that the relay E is restored to its neutral position. Specifications 297,995, [Class 98 (ii), Photographic processes &c.], and 329,712 are referred to.
Patent GB-1399731-A (GB)
Title: Process and unit for treatment of jet engine exhaust gases
IPC: F01N3/05
Filed: 1972-05-15
Abstract: 1399731 Silencing and cooling jet engine exhaust gases TELLER ENVIRONMENTAL SYSTEMS Inc 15 May 1972 [13 May 1971] 22753/72 Heading F1B Augmentation fluid, e.g. water and air, is introduced into jet engine exhaust gases and a portion of the resulting gas stream is returned from a downstream position to an upstream position. In the unit shown exhaust gases from the nozzle 32, air aspirated between the nozzle and or shell 34 and water from nozzle 44 are mixed upstream of the tube 46. A portion of the gases leaving the tube 46 are returned to the mixing zone 38 through a passage 54 between the tube and an outer shell 42. A baffle 56 and a member 58 for splitting the flow of gases are located downstream of the tube 46. Water may be sprayed within the tube 46 and from the member 58. The amount of water sprayed is from 0.05 to 1.5 pounds/pound of exhaust gas and the amount of air is 0.1 to 1.2 pounds/pound. Dimensions of the unit and angles of gas flow directing surfaces are given in the Specification.
Patent GB-620416-A (GB)
Title: Improvements in the treatment of jute fibre
IPC: D01C1/02
Filed: 1946-07-31
Abstract: Jute fibres are opened up, and rendered more resilient, soft and wool-like, by steeping or soaking them in a solution of caustic soda of 20-30 DEG  Baum<\>ae at 4-7 DEG  C.  A treatment of not more than 7 minutes is preferred.  The fibres may be treated in the raw condition or in sliver, spun, woven, or other state. Fibres so treated may be readily spun, carded, or drawn.  The fibres assume a curled condition and resemble wool.ALSO:Jute fibres are curled and rendered more resilient, soft, and wool-like, by steeping or soaking them in a solution of caustic soda of 20-30 DEG  Baum\'e at 4-7 DEG C.  A treatment of not more than 7 minutes is preferred.  The fibres may be treated in the raw condition or in sliver, spun, woven, or other manufactured state. Fibres so treated may be readily spun, carded, or drawn.
Patent GB-1087923-A (GB)
Title: Method and apparatus for converting a gas distribution system from town gas to natural gas
IPC: B01F23/10
Filed: 1965-05-28
Abstract: 1,087,923. Gas distribution systems. EUHRGAS A.G. May 28, 1965 [May 30, 1964], No. 22778/65. Heading F4X. A method of converting a gas distribution system from town gas to natural gas comprises, at a point between converted and unconverted sectors of the system, adding propane and/or butane to town gas from the unconverted sector to produce an auxiliary gas similar in calorific value, density and Wobbe number to natural gas and feeding this gas mixture into the converted sector of the distribution system. The mixing being performed by a mobile mixing machine. Additional corrections to the calorific value, density and Wobbe number of the auxiliary gas may be made by adding air to the mixture. The mobile mixing machine comprises a mobile carriage 1 on which is mounted two pressure storage vessels 2 and 3, for liquefied propane or butane, connected through valves 4, 5, 6 and 7 to a vaporizer 8, having additional means of heating, if required, the propane gas then flows through a valve 11, a pipe 12 and a regulating valve 13 to a mixer and compressor 14 driven by a motor, not shown. The town gas from an unconverted section 17 of a pipeline 15 is supplied through a pipe 19, a gate valve 20 and a flexible pipe 21 to the mixer and compressor 14 in which it is mixed with the propane gas to form the required auxiliary gas which is fed through a flexible pipe 22, a gate valve 23 and a pipe 24 to the converted section 18 of the pipeline 15. The regulating valve 13 is controlled by a measuring and control device 26 sampling the auxiliary gas at the outlet of the mixer 14 through a pipe 25. A gate valve 16 separates the converted and the unconverted sections 17 and 18 of the pipeline 15.
Patent GB-532796-A (GB)
Title: A non-slip rim for pneumatic tyred tractor wheels and the like
IPC: B60B15/26
Filed: 1939-07-29
Abstract: 532,796. Vehicle wheels. MARDEN, F. H. E. July 29, 1939, No. 22781/38. [Classes 144 (i) and 144 (ii)] A detachable tread band for pneumatic-tyred tractor wheels comprises two steel rings 1 each formed on two or more segments connected as by bolts 7, Fig. 2, and spaced by transverse bars 2, external channel or A-shaped shoes 3 and internal tyre-embracing brackets 9 being secured to the rings by bolts 4. Fig. 5 shows a tool for drawing together the ends of the ring segments comprising a pair of hooks 11, 13 pivoted, one adjustably, to the hand-lever 10, bolts being passed through registering holes 15 in the lapped ends of the segments.
Patent GB-679425-A (GB)
Title: Improvements in or relating to machine guns
IPC: F41A21/26
Filed: 1950-09-18
Abstract: 679,425. Machine guns. DANSK INDUSTRI SYNDIKAT COMPAGNIE MADSEN AKTIESELSKAB. Sept. 18, 1950. [Nov. 1, 1949] No. 22887/50. Class 92 (ii). Relates to machine guns of type in which the barrel 10 which recoils on firing, is bayonetlocked to the lock casing and is partly embraced by a fixed open-topped jacket 11 fitted with a muzzle recoil amplifier 12. According to the invention the recoil amplifier is bayonet locked, at 18, 19, to a reinforced part 11<SP>1</SP> of the jacket 11 in the same manner as the barrel is locked to the lock casing, and a tubular extension 12<SP>2</SP> of the amplifier has a lug 12 fitting into a longitudinal keyway in the barrel. By such an arrangement a suitable movement of a handle 24 releases both bayonet joints simultaneously. The amplifier shown includes a disc 14 with an opening 17 of chosen size, and a flash obscurer 16.