baber/WOPTO huggingface dataset:
Patent GB-1426213-A (GB)
Title: Rolls
IPC: D21F3/08
Filed: 1973-09-17
Abstract: 1426213 Rollers ESCHER WYSS Ltd 17 Sept 1973 [16 Sept 1972] 43582/73 Heading F2U In a roller for pressure treatment of material webs, a shell 1 rotates about a stationary beam 2, and forces for supporting the shell, and for coupling the effects of flexure of the beam are derived from a series of fluid pressure jacks, each comprising a primary cylinder 3, a piston 4, and a bearing shoe 6, located on an articulated pivot joint 5, with a secondary fluid chamber 7 sealed by an annular seal 12 in a plane through the pivot point and arranged such that the pivot joint 5 is subjected to a small compressive force only, resulting from the differential action of fluid pressures on piston areas in the two fluid chambers. Fluid in the two chambers may be at the same pressure, with a relatively large connecting duct 9, Fig. 2, or alternatively the secondary chamber 7 may have fluid supplied at reduced pressure through a constricting duct 9, Fig. 4. The outward face of the bearing shoe 6 may be provided with hydrostatic bearing pockets 10<SP>1</SP> and 10<SP>2</SP>, fed with fluid through constricting ducts 11<SP>1</SP>, 11<SP>2</SP>, Fig. 2. An alternative arrangement of concentric hydrostatic bearing pockets, Fig. 5 (not shown), may have a wide duct (11). The bearing shoe 6 may be shaped to offer a secondary piston 14 into the cylinder surface 8 of the primary piston 4, Fig. 2. In an alternative arrangement, as in Fig. 4, bearing shoe 6 may carry the cylinder surface 8, and the secondary piston may be integral with a flange portion 16 of the primary piston 4. Similarly, in other embodiments (not shown in any figure), the primary piston and cylinder elements may be interchanged, with beam 2 carrying a fixed piston, engaging in a moving cylinder.
Patent GB-1528906-A (GB)
Title: Endoprosthetic devices
IPC: A61F2/38
Filed: 1974-10-11
Abstract: 1528906 Prosthetic joints NATIONAL RESEARCH DEVELOPMENT CORP 9 Oct 1975 [11 Oct 1974] 44089/74 Heading A5R A prosthetic elbow joint comprises an axially bored humeral component 10 having a first portion 13 providing a bearing surface which is concave in the axial direction and convex in the circumferential direction and a second portion 14 providing a bearing surface which is convex in both the axial and the circumferential directions, and an ulnar component 30 providing a bearing surface which is convex in the axial direction and concave in the circumferential direction and has a curvature in the axial direction equal to or, preferably, less than that of the concave surface of the first portion of the humeral component so that the two components can fit together in mutual articulatory engagement. The second portion 14 of the humeral component may articulate with the natural head of the radius 70 or with a radial component 40 providing a fourth bearing surface which can be concavely dished to be complementary with the second bearing surface. The humeral component may be of integral construction or the first and second portions may be separably connected in axially adjustable manner.
Patent GB-1145107-A (GB)
Title: Ion beam microanalyser
IPC: H01J49/32
Filed: 1966-10-04
Abstract: 1,145,107. Ion beam tubes; particle spectrometers. APPLIED RESEARCH LABORATORIES Inc. 4 Oct., 1966 [11 Oct., 1965(3)], No. 44183/66. Heading H1D. An ion beam microprobe analyzer has a wedgeshaped magnetic lens 116 for filtering out undesired ions and a unipotential electrostatic lens 118 for concentrating the beam directed on to the specimen 124. An additional concentrating unipotential lens 122 may be provided and the beam is scanned over a selected area of the specimen by pairs of deflection plates 126. Ions emitted from the specimen are directed into a double-focusing mass spectrometer 130 in which a unipotential lens 132 is provided in advance of the electrostatic analyser 134, as described in Specification 1,145,108, in order to increase the acceptance angle. An auxiliary pair of deflection plates 150 is provided at the entrance of the spectrometer in order to compensate for movement of the cross-over at the exit aperture 142 due to the effect of scanning the primary ion beam over the specimen. An electron gun 152 produces an electron beam for ionizing neutral particles emitted from the specimen and so to increase the effective ion emission from the specimen.
Patent GB-1499497-A (GB)
Title: Electric cell using beta sodium alumina electrolyte eg a sodium-sulphur electric cell
IPC: H01M2/02
Filed: 1976-10-25
Abstract: 1499497 Alkali metal; S, P or Se cells COMPAGNIE GENERALE D'ELECTRICITE SA 25 Oct 1976 [28 Nov 1975] 44211/76 Heading H1B A molten alkali metal (Na)-S, P or Se cell having a # alumina, solid electrolyte tube 12 is sealed by compressing an O-ring 18 of, e.g. Al, between flanges 19, 20 and an alumina plate 6. The containers 2 and 8 may be strengthened by bushes 21 of, e.g. stainless steel or ceramics. The containers may be made of stainless steel, Mo, Cr, Al, Ni-Cr-Mo or Al-Mg.
Patent GB-1149964-A (GB)
Title: Improvements in or relating to thrust units
Inventor: TURNER STANLEY BERRY
IPC: F02K7/18
Filed: 1965-10-19
Abstract: 1,149,964. Jet propulsion units. PLESSEY CO. Ltd. Sept.23, 1966 [Oct.19, 1965], No.44339/65. Heading F1J. A propulsion unit comprises a decomposition chamber in which a mono-fuel is decomposed, the products of decomposition being discharged into a mixing chamber where they are mixed and burned with air or other gaseous medium containing oxygen, the resulting combustion gases being discharged in the form of a propulsion jet. In the embodiment shown mono-fuel is decomposed in the chamber 1 and the resulting decomposition products discharge into the mixing chamber 2 drawing in air as indicated by the arrows 3. The mixture of decomposition products and air burns in the chamber and the resulting gases discharge through the nozzle 4 in the form of a propulsion jet. The air-flow into the chamber 2 may be assisted by the ram action.
Patent GB-1439334-A (GB)
Title: Re-usable formers
IPC: E01C9/00
Filed: 1972-09-27
Abstract: 1439334 Paving GRASS CONCRETE Ltd 28 Aug 1973 [27 Sept 1972] 44657/72 Heading E1G A re-usable former for forming voids in concrete paving comprises a plurality of expandible and contractable bodies 12 interconnected and spaced apart by a frame 11. The bodies are preferably hollow and are inflated by compressed air supplied through the frame which is in the form of pipes. All the bodies may or may not have the same shape. The bodies are used by laying them on hardcore, casting concrete therearound and then subsequently filling the voids with soil, turf, or coloured gravel. The formers may be inflated before or after the concrete is cast therearound.
Patent GB-1017277-A (GB)
Title: Process for the manufacture of benzodiazepine derivatives
IPC: C07D243/16
Filed: 1962-11-29
Abstract: Compounds of the general formula <FORM:1017277/C2/1> (wherein R1 and R2 each represents a halogen atom or a trifluoromethyl group and the broken lines indicate that the substituents attached thereby are optional) and acid addition salts thereof are prepared by reacting a benzophenone of the formula <FORM:1017277/C2/2> (wherein R3 and R4 each represents an optional halogen, trifluoromethyl or nitro substituent) with ethylene diamine, introducing a nitro group into the reaction product where R4 is absent, replacing said nitro group and/or any nitro group(s) already present in the reaction product by halogen and, if desired, converting the product into an acid addition salt, a methylation step for the purpose of introducing a methyl group in the 1-position in the product being included at any suitable stage if desired.
Patent GB-1366792-A (GB)
Title: Radar receivers emplying multi beam antennas for determining a di rection
IPC: G01S13/44
Filed: 1972-09-29
Abstract: 1366792 Pulse radar THOMSON-CSF 29 Sept 1972 [1 Oct 1971] 45192/72 Heading H4D A monopulse system includes "sum" and "difference" amplifiers under the control of a single gain control signal, a synchronous demodulator providing position indicating output from the sum and difference amplifier outputs, a first switch for alternately connecting the sum and difference signals to the difference amplifier and a synchronized second switch for supplying the gain control with the sum signal amplified by the difference amplifier wherein the sum signal is connected to the difference amplifier during one recurrence period in a plurality thereof. Switches SW 4 , SW 5  are controlled by generator Sy 1  which comprises a four stage chain of divide by two bi-stables and logic circuits (Fig. 7, not shown). They are operated such that for normal operation (positions a 4 , a 5 ), sum signal # and difference signal # are fed via amplifiers A 1 , A 2  respectively to demodulator D which provides the directional error signal via memory M 2  to the "add" input of comparator Su. For one recurrence period the switches are in position C and this provides a zero potential to the difference amplifier, the detector D output being fed to memory M 1  which feeds the "subtract" input of comparator Su. This provides a zero reference level for the measurement signals. During a further single recurrence period contacts b 4 , b 5  are used to supply the sum signal through the difference amplifier and the detector output to comparator S where it is compared to a reference level K and the difference drives gain controller C to set the gain of amplifiers A 1  A 2 . In further embodiments, the reference zero level stage is excluded removing the need for memories M 1  M 2  (Fig. 3, not shown), the gain control signal is derived from the amplifier A, output signal directly (Fig. 2, not shown) or by adding the high pass filtered, peak detected sum amplifier output to the low pass filtered output of a comparator comparing the difference amplifier output (sum signal) with a reference level K, (Fig. 4, not shown).
Patent GB-1148237-A (GB)
Title: Crossbar multiselector with mechanical hold
IPC: H01H67/26
Filed: 1967-10-05
Abstract: 1,148,237. Electric selectors. INTERNATIONAL STANDARD ELECTRIC CORP. 5 Oct., 1967 [20 Oct., 1966], No. 45392/67. Heading H1L. In a cross-bar switch employing mutually orthogonal sets of longitudinally displaceable select and hold bars, the holding bars are spring biased in one direction and have abutment surfaces which engage the movable contacts of the selected sets and bias them in this direction. The selected contacts are thus held closed mechanically. As shown (Fig. 1) the movable contacts are coil springs 2 mounted on a printed circuit board 1 and the fixed contacts are parallel coil springs 18, the turns of which are sufficiently far apart to enable a coil spring 2 to squeeze between them. The select bars 3 are biased towards the right of the figure by links 11 and coil springs 10 and are displaceable to the left by energizing electromagnets 54 attracting their armatures 8. The holding bars are similarly mounted. As shown in Fig. 9, the holding bars 36 to 38 and selecting bars 34, 35 have apertures through which the movable contact springs 39, 40 and 47-50 pass. The holding bars have teeth one per aperture which extend into the apertures and form the abutments. Open contacts at an unselected cross-point in the normal position of the bars are shown at A, A<SP>1</SP>. To close such contacts the corresponding hold bar 36, 37 or 38 is displaced towards the bottom of the figure by enabling its electromagnet. The corresponding select bar 34 or 35 is displaced to the left by energizing its electromagnet thus moving the movable contacts in front of the abutments. The hold bar is then released causing the movable contacts to be forced into engagement with the fixed contacts as shown at B, B<SP>1</SP>. The select bar can then be released as indicated at C, C<SP>1</SP>. The select and hold bars are made of light material, e.g. polyester ribbon. Each cross-bar assembly is closed by a transparent plastics cover 19.
Patent GB-1375330-A (GB)
IPC: B01D53/68
Filed: 1972-10-02
Abstract: 1375330 Preparation of aqueous hydrogen chloride solutions SOC ITALIANA RESINE SIR SPA 2 Oct 1972 [17 Nov 1971] 45408/72 Heading C1A Gaseous hydrogen chloride which is contaminated by organic substances is absorbed in water to produce substantially pure aqueous HCl using the following process (i) a fraction of the contaminated gaseous hydrogen chloride is fed to the head of a graphite exchanger 1 via a line 3 together with water through a line 4 and isothermal absorption of the gas takes place to yield aqueous hydrogen chloride with a concentration less than or equal to 20% by weight; (ii) the remaining fraction of the gaseous hydrogen chloride is supplied to the base of an adiabatic absorption column 2 via a line 8; (iii) the aqueous solution of hydrogen chloride from the isothermal absorption is subjected to decantation in decanter 12 together with the cooled products discharged at the head of the adiabatic absorption column 2; (iv) the oganic phase is discharged from the decanter through line 13; (v) the aqueous hydrogen chloride is discharged from the decanter via line 7 and is supplied to the head of the adiabatic absorption column; (vi) the aqueous solution of hydrogen chloride with an acid concentration of 32-33% by weight is discharged via line 8<SP>1</SP> from the base of the column 2 and is cooled in exchanger 9.
Patent GB-1482813-A (GB)
Title: Shock absorbers
IPC: F16F9/348
Filed: 1974-10-23
Abstract: 1482813 Shock absorber piston valves; valves JONAS WOODHEAD Ltd 23 Oct 1974 45779/74 Headings F2S and F2V An hydraulic shock absorber comprises a piston 12 slidable in a cylinder 10, a first resilient valve element 46 co-operating with an annular valve seat 48 on the piston and controlling flow in one direction (downwards) through at least one passage 28 extending through the piston, and a second resilient valve element 60 (Fig. 2) or 92 (Fig. 5) seating on the first valve element 46 and controlling flow in the other direction (upwards) through the passage(s) 28, the first valve element 46 being formed with elongate arcuate slots (56, Fig. 3, not shown) to provide access to the second valve element. In both embodiments the valve element 46 is backed by a resilient valve element 50, both elements flexing away from the seat 48 on the piston to uncover the passages 28 on upward movement of the piston. The valve element 46 has four arcuate slots and the valve element 50 has nine holes (58, Fig. 4, not shown). Whatever the relative angular orientation of these two elements 46, 50 the cross-section for flow to the second valve elements 60, 92 is substantially the same. On downward movement of the piston, the second valve element 60, 72 leaves its seat on the first valve element 46 to uncover the passages (56, 58), the valve element 60 (Fig. 2) flexing, the valve element 92 (Fig. 5) moving bodily at first and then flexing round a stop 64.
Patent GB-1285468-A (GB)
Title: A vacuum switch
Inventor: GEBAUER GERHARD VOIGT ECKEHARD
IPC: H01H33/664
Filed: 1969-09-17
Abstract: 1285468 Vacuum switches ELEKTROAPPARATE-WERKE BERLIN-TREPTOW VEB 17 Sept 1969 45830/69 Heading H1N The contacts of a vacuum switch are made replaceable by forming the envelope in such a way that it can be unsealed, and attaching the contacts to the electrodes extending through the envelope by means of screws and a soft solder. Seals between the ceramic parts 1 and the end plates 2, 3 and between the bellows 4 and adjacent parts are made of high temperature solder while those between the ceramic parts 1, 1<SP>1</SP> and a ring 10 supporting a shield 11 are made with a low temperature one, e.g. of a copper-silver eutectic. The contacts 7, 8 are screwed to electrodes 5, 6 and retained by more of the low temperature solder so that when the switch is heated to break the seals the contacts are also freed. The solder may be disposed between the contacts and electrodes in various channels (Figs. 2-7, not shown).
Patent GB-1384801-A (GB)
IPC: H04J3/07
Filed: 1972-10-05
Abstract: 1384801 Multiplex pulse signalling SIEMENS AG 5 Oct 1972 [22 Oct 1971] 45854/72 Heading H4L Positive and negative stuffing is used in the interleaved transmission of a number of pulse trains over a common multiplex, stuffing data being sent over the multiplex to a receiver indieating the instantaneous phase shifts existing between each train and a standard frequency so that the receiver can control oscillators against the standard frequency to reconstitute the pulse trains at their original frequencies. By controlling oscillators at intervals more frequent than the occurrence of stuffing pulses, pulse jitter is reduced. In the embodiments four pulse trains with frequencies differing to a small extent from the mean standard frequency f 10  are multiplexed on to a common highway by bit interleaving. The multiplex is organized in super groups comprised often basic groups of 264 bits each. The first 8 bits of the odd numbered basic groups are used for synchronizing codes while the first 8 bits of the even numbered basic groups are used for stuffing data. With bit interleaving each 8 bit stuffing code contains 2 bits concerning each of the four pulse trains, each pulse train having 10 bits spread over the 5 such stuffing code groups in each super group. The bits of the last stuffing code group in each super group are used for stuffing, one bit of the associated pair being stripped (negative stuffing) if the pulse train is slow, or a bit being added (positive stuffing) if the pulse train is fast, such bits being correspondingly restored or stripped at the receiver. The phase difference between each pulse train and the standard frequency can be signalled by pulse code modulation or by delta modulation, the latter requiring fewer of the stuffing data bits. With pulse code modulation the receiver matches the signalled phase difference with the difference between the standard frequency and the output of a voltage controlled oscillator, Fig. 6, not shown. With delta modulation the received signal indicates whether the phase has advanced or retired by a step of 2#/m, or has not changed, and also whether a stuffing bit has been deployed. The receiver records the sign of the preceding phase shifts to determine the sign of stuffing when it occurs. Frequency is reconstituted by adding or deleting a bit when necessary from the output of a pulse oscillator of frequency mÎf 10 , the resulting train being divided by m, Fig. 9, not shown.
Patent GB-1435023-A (GB)
Title: Method of safeguardi
IPC: B60K28/06
Filed: 1973-10-02
Abstract: 1435023 Preventing unauthorized starting of engines BIVIATOR SA 2 Oct 1973 [31 Oct 1972] 45961/73 Heading F1B [Also in Division A5] A method of preventing a vehicle being used by an operator in an unfit condition consists in requiring an intending operator to peform a test on an automatic safety device, the test being initiated by the operator inserting, into a reader of the device, a key which pre-sets the device to suit one person and the operator then being required to successfully carry out the steps of the test in order to be able to start the vehicle. An apparatus for carrying out the test consists of a reader 2 into which a punched card 1 (the key) is inserted, an oscillator 3 which produces a train of timing pulses, a lamp L which is energized by a second oscillator 13, and a relay 17 which actuates contacts 20 in the ignition and starter motor circuits. Pulses from oscillator 3 are fed to a unit 7 which produces signals at three-minute intervals and to a unit 8 which produces signals at 30 minute intervals, both sets of signals being fed to a control unit 5. The frequency of the second oscillator 13 is controlled by a unit 12 so that lamp L is energized seventy times a second when it is first switched on by pressing a switch button 10 and the oscillator frequency is reduced progressively until the lamp is energized only 20 times/second. The button 10 is purposely made difficult to operate and inadequately controlled operation of the button transmits a "Test failed" signal to unit 5. Such signals are counted by a unit 9 and if three are received the timing unit 8 transmits a signal to unit 5 which prevents operation of the vehicle for a period of 30 minutes. If the button 10 is operated properly the lamp L starts flashing at 70Hz, which appears as a continuous light, and the operator must release the button as soon as the flicker becomes apparent due to the reducing oscillator frequency. When the button is released the frequency is locked and is compared with the information on the punch card. If satisfactory the relay 17 is energized and the vehicle may then be started by ignition switch 19. If the comparison is unsatisfactory a "Test failed" signal is transmitted to the unit 5. Three such signals again prevent operation of the vehicle for 30 minutes. Once the test has been successfully carried out, the engine can be stopped and then restarted within a period of three minutes without repeating the test, provided that the punch card is not removed from the reader.
Patent GB-998780-A (GB)
Title: Control mechanism for hydraulic pumps
Inventor: FREEMAN LESLIE BERNARD
IPC: F15B11/05
Filed: 1962-12-12
Abstract: 998,780. Valves. JOSEPH LUCAS (INDUSTRIES) Ltd. Dec. 2, 1963 [Dec. 5, 1962], No. 45986/62. Headings F2C and F2V. [Also in Division G3] The displacement of an hydraulic pump 2, Fig. 1, driven by an electric motor 1 is controlled in response to the load on the motor. A pump 12 supplies fluid to the opposite sides of a piston 10 which is centred by springs 11 when the pressures are equal. The opposite sides of the piston are connected to a valve 14 which is actuated by the high pressure in lines 3 or 4 to connect one side of the piston to a normally closed valve 15. The piston 10 is connected to a link 8 the opposite ends of which are connected to the pump displacement means and a manually adjusted lever 9. The valve 15 comprises a valve member 17, Fig. 2, loaded to the closed position by an electromagnetic 18 and spring 20 and opened when the current fed to an electromagnetic 19 is sufficient to overcome the load. In operation, the lever 9 is set to a pump displacement and also sets the current fed to the solenoid 18. The current fed to the solenoid 19 is proportional to the load on the motor 1 and when this is sufficient to open the valve 15, pressure is released from one side of the piston 10 and the pump displacement is reduced. The pump 2 supplies fluid to motors 5 driving the wheels of a truck. The pump 12 also acts as a make-up pump for the fluid circuit between the pump and motor.
Patent GB-952923-A (GB)
Title: Commutators
Inventor: WOODMAN LEONARD JOHN
IPC: H01R39/04
Filed: 1961-12-27
Abstract: 952,923. Commutators for dynamo-electric machines. C.A.V. Ltd. Dec. 21, 1962 [Dec. 27, 1961], No. 46227/61. Heading H2A. In a dynamo-electric machine commutator whose semgents 3 are looked in position around a flanged bush 5 by two metal, e.g. steel, clamping rings 7 engaging respectively two annular grooves 3a at opposite ends of the segment assembly, the unflanged end of the bush 5 being spun over to retain the rings 7 in position, the ring surfaces in contact with the segments 3 have resin impregnated fibrous material, e.g. glass insulating layers 8 engaged and cured on the rings prior to their insertion in the grooves 3a. The remaining insulation is mica. Specification 878,013 is referred to.
Patent GB-977008-A (GB)
Title: Improvements in or relating to telescopic beams
IPC: E04G11/56
Filed: 1961-05-12
Abstract: 977,008. Telescopic beams; metal bars. URANUS TRUST. May 12, 1961 [June 7, 1960], No. 46405/63. Divided out of 972,386. Drawings to Specification. Headings E1K and E1S. The subject-matter is the same as Specification 972,386 but the claims relate to a beam the inner and outer telescoping parts of which are partly or wholly made of plastics and are thickened at the top where they engage and at the bottom where they are reinforced.