baber/WOPTO huggingface dataset:
Patent GB-978212-A (GB)
Title: Improvements in condition-reponsive circuitry
IPC: H03B5/10
Filed: 1960-12-30
Abstract: 978, 212. Locating conductive bodies; photo sensitive circuits. HONEYWELL Inc. Dec. 30, 1960 [Dec. 31, 1959], No. 44780/60. Headings G1A and G1N. [Also in Division G4] In a physical-condition-responsive apparatus comprising a pair of oscillators set to oscillate at substantially the same frequency or being slightly detuned, with the frequency determining networks intercoupled by a resistive impedance connected between corresponding points in the network to obtain substantial frequency synchronizm over the working range of the apparatus irrespective of relative detuning, the condition sensing means is arranged in conjunction with low coupling to vary the degree of coupling, or in conjunction with tight coupling to vary the tuning of one of the oscillators so that an output depending on the relative phase angle between the oscillator outputs is produced as an indication of the condition. The arrangement overcomes false alarms arising from ambient changes. Electron coupled oscillators 14, 16 Fig. 1, oscillating at sonic or supersonic frequencies are coupled acoustically by loudspeakers 42, 44 located to detect an intruder by changes in their coupling, and the oscillator outputs connected in opposition to the primary winding 26 of transformer 28 indicate the presence of an intruder on a meter 82 or by an alarm operated by the closure of contacts 172 of relay 160. Amplifier stages 70, 98 and 128, 126 are provided for the rectified output signal, and the relay 160 in series with a current adjusting potentiometer is connected across the cathode loads of the latter. A relay 168 is deenergized by a power failure and contacts 174 are arranged to complete an indicator circuit. The loudspeakers may be replaced by antennae, or a wire fence may be connected to terminal 34. The resistive coupling impedance 46 may include a series switch 48, or may comprise a lead sulphide or other photoconductive element described with reference to Fig. 1A (not shown). A search coil in a ferrous metal detection system or a capacitive transducer in a liquid level measuring system may alternatively be connected to terminals 34, 36, and in the latter, a phase-sensitive detector may be employed to determine the direction in which a change of capacity is occurring. The outputs may alternatively be adapted to effect control, and in the liquid level system, may be used to maintain constant the level of liquid in a tank. In the intruder system the wavelengths may be chosen to be of the same order of magnitude as the human body. Automatic frequency control may be provided to compensate for ambient changes and to prevent a slow change in capacity moving the operating point to a position where the oscillators are no longer held in synchronism. This is achieved by a feedback from the output of rectifier 62 to the suppressor grid of oscillator 14 which controls the transconductance of the tube 22. Operating characteristics are described and examples of component values are given.
Patent GB-1249259-A (GB)
Title: Clamping device
Inventor: BAYLEY CHARLES
IPC: H01R9/26
Filed: 1969-09-11
Abstract: 1,249,259. Fastenings. KLIPPON ELECTRICALS Ltd. 23 April, 1970 [11 Sept., 1969], No. 44889/69. Heading E2B. [Also in Division H2] An electrical terminal comprises a metal sleeve 3, a clamping screw 5, and a metal clamping bar 2 which is provided with a metal spring 8. A conductor 6 which may be aluminium is clamped between the sleeve 3 and the serrated side of the bar 2 and the spring 8 is bent into a recess 7 formed in the other side of the bar 2 to provide the clamping pressure, even if the conductor 6 experiences plastic flow. The terminal may be housed in an insulating housing (1, Fig. 1, not shown) which may house two terminals having a common clamping bar. The spring 8 may be located by lips (11, Fig. 5, not shown) on the bar 2 or by parts of the insulating housing (Fig. 4, not shown).
Patent GB-1205249-A (GB)
Title: Spectrophotometric analyzer for analysis of plurality of components
Inventor: BARTZ ARNOLD MARTIN
IPC: G01J3/427
Filed: 1967-10-04
Abstract: 1,205,249. Spectrophotometry. DOW CHEMICAL CO. Oct.4, 1967 [Oct. 5, 1966], No.45106/67. Heading G2J. [Also in Division G1] Apparatus for determining a plurality of components of a mixture by measuring the radiation affecting properties of each of the components at a pair of mono-chromatic wavelengths comprises a mono-chromator with a plurality of entrance slits and shutter means for selectively masking and unmasking the entrance slits. Infrared radiation from a resistance wire, nernst glower or a piece of heated silicon carbide, 10 is focused by a mirror 11 on to a plurality of entrance slits 13, 14, 15. Slits, 13 and 15 are so positioned that light entering through them reaches the exit slit 28 of the grating mono-chromator 25, 26, 27 as measuring wavelengths for two components of a mixture in flow cell 30 and slit 14 is positioned to provide a reference wavelength. A filter 29 removes higher orders of diffraction. The pneumatically operated shutter 16 alternately exposes slits 13 and 14 and slits 14 and 15 to estimate the components in turn. A chopper 22 chops radiation passing through slit 14 at frequency f 1  and through slits 13, 15 at frequency f 2 . The radiation passing through the flow cell 30 and falling on detector 32 contains measuring and reference components modulated at frequencies f 2  and f 1  respectively. These components in the detector output are separated by tuned amplifiers and detected by rectifiers synchronized with the rotation of chopper 22 by photodiodes 42, 43. The rectifier outputs are compared in self balancing potentiometer and recorded. When shutter 16 is operated by the instrument programmer to test the other component, a mark is made on the record or a different pen is brought into use. The output may be used for process control. The flow cell may be a reflectance cell using the attenuated total reflectance principle, and the grating may be replaced by a Na Cl crystal prism. The apparatus may be used to determine ethylbenzene and vinylcyanide (acrylonitrile) in styrene monomer. The apparatus may be used in the visible spectrum using glass lenses and front surface mirrors and in the ultraviolet spectrum using quartz lenses and front surface mirrors.
Patent GB-1349465-A (GB)
Title: Hydrocyclones
IPC: B04C5/14
Filed: 1971-09-28
Abstract: 1349465 Hydrocyclones ELAST-O-COR PRODUCTS & ENG Ltd 28 Sept 1971 [28 Sept 1970 20 Aug 1971] 45172/71 Heading B2P A hydrocyclone comprises a generally conical chamber having an axial fluid outlet passage 26, 30 at each end and a tangential fluid inlet 34 adjacent its wider end, the inner surface of the fluid outlet passage 26 at the smaller end being provided with a screw-thread like formation 42. The formation 42, preferably a multiple thread, defines spiral shaped grooves. The formation may be rectangular, semicircular or semi-elliptical in cross-section. The threads may spiral in the same direction as, or in the opposite direction to, the direction of rotation of the fluid vortex in the chamber. The imaginary surface formed by the top of the threads is conical. The thread groove need not be of constant depth and its profile can change along its length. The body of the hydrocyclone may be made of polyurethane. In Fig. 1, two hydrocyclones for treating paper pulp slurries are shown mounted in spaced apart walls 12, 14, 16 which define a reject region 18, a feed region 20 and an accept region 22. Labyrinth seals 21 prevent leakage of material from one region to another. Dimensions and results of tests are given. The theory explaining how and why the spiral grooves facilitate discharge through the hydrocyclone apex outlet passage 26 is given.
Patent GB-1017663-A (GB)
Title: Concentration of hydrazine
IPC: C01B21/16
Filed: 1961-12-20
Abstract: Aqueous hydrazine solutions are concentrated by removing water therefrom by permeation through cellulosic membranes.  The process comprises introducing an aqueous hydrazine solution to the feed zone of a permeation apparatus, which comprises a feed zone separated from a permeate zone by a membrane made from cellulose or a derivative thereof, e.g. cellulose acetate or regenerated cellulose, and recovering from the feed zone and permeate zone solutions enriched and depleted in hydrazine respectively. Sodium chloride or sodium sulphate may be present in the initial solution. The permeate zone may have a pressure less than the vapour pressure of the permeate vapour, and the process may be carried out at 30-70 DEG  C.  The enriched hydrazine solution may be distilled to recover anhydrous hydrazine.
Patent GB-1240947-A (GB)
Title: Random access memory
Inventor: MURRAY WILLIAM DENNISE
IPC: G11C8/00
Filed: 1969-09-16
Abstract: 1,240,947. Magnetic storage arrangements. BURROUGHS CORP. 16 Sept., 1969, No. 45628/69. Heading H3B. By propagating a travelling domain wall along a rigid magnetic member and at the same time selectively pulsing a plurality of conductors extending longitudinally of the direction of wall movement and adjacent a magnetic storage structure, a plurality of words are simultaneously written into the storage structure with each word entered in serial form in a different channel. Non-destructive serial readout of the stored data is effected by propagating a domain wall and detecting the disturb voltages induced in the conductors. One form of data store is shown in Fig. 1 in which a plurality of longitudinal magnetic plated wires 12 surround a travelling domain wall rod 10. An alternative is shown in Fig. 4 in which the domain wall is propagated along a tube 40, removably inserted in a magnetic storage structure 42 on which the longitudinal conductors are plated. A further arrangement, Fig. 5, consists of a housing 52 supporting a travelling domain wall rod 56 and conductors 54, a tube of magnetic material 50 being removably inserted into an annular space between the conductors. A removable magnetic storage strip, which may be folded, is shown in Fig. 12, the strip 12-10 being associated with transversely-extending domain wall rods 12-14 and conductors 12-16. A plurality of removable spaced storage plates 13-16 supported in a frame 13-10 is used in Fig. 13, domain wall rods 13-14 and conductors 12-23 being mounted in a structure slotted to receive the plates. A matrix of the travelling domain wall data stores is shown in Fig. 11, each store being as shown in Fig. 5. The travelling domain wall is produced in a selected rod 50 by the coincident energization of two driver coils, one coil being connected in a column circuit and the other in a row circuit. Selection is effected by an address source 11-24 which energizes a selected column circuit and a selected row circuit through flip-flops 11-20, 11-22, diode matrices 11-16, 11-18, and drivers 11-12, 11-14. Read/ write addressing circuits for the longitudinal conductors are also described, Figs. 9 and 10 (not shown).
Patent GB-1318606-A (GB)
Title: High voltage cable terminator
IPC: H02G15/064
Filed: 1970-09-24
Abstract: 1318606 Cable terminations MINNESOTA MINING & MFG CO 24 Sept 1970 [25 Sept 1969] 45643/70 Heading H2E A high voltage cable terminator comprises an insulative corrugated ceramic tubular body (11), having semi-conductive elastic caps 12, 18 retained on the body by co-operating ridges and grooves 15, 16 and metal bands 14, 19. The cap 18 has a stress cone configuration and the clamp band 19 is earthed at 23 and may be of the form shown in Fig. 4, providing support for the assembly. The termination 26 is crimped using a sleeve 27 to the cable end 25 and inserted through the assembly, rupturing a diaphragm 28, Fig. 3 (not shown), in cap 18 and diaphragm 24 in cap 12, the diaphragm retaining a thixotropic insulative grease filling within the body. The caps 12, 18 are made from conductive polymer and sealingly engage the terminal and cable sheath respectively. The ceramic may be porcelain.
Patent GB-1167401-A (GB)
Title: Improvements in or relating to Monitoring Arrangements for Multi-Stage Equipments
IPC: G01R31/25
Filed: 1966-10-12
Abstract: 1,167,401. Voltage testing. TELEFUNKEN PATENTVERWERTUNGS-G.m.b.H. Oct.12, 1966 [Oct. 23, 1965], No.45684/66. Heading G1U. [Also in Division H3] A monitoring system for checking that a number of voltages, which may be of either polarity and which are derived from a multistage transistor circuit whose operation is to be checked, are of correct magnitude, is arranged so that the voltages are applied in turn to a voltage measuring or indicating device, such as a meter or magic eye 11, via a circuit which incorporates two paths in parallel arranged so that whatever the input polarity the output of the circuit is always the same polarity. The two paths are decoupled from one another at the ends connected to the indicator. The inputs are applied in turn via a switch 54 to a high input impedance amplifier 48 and thence to two channels, one including a diode 7 for handling inputs of one polarity, the other including a diode 8 for inputs of the other polarity. Signals in the channel 7 are amplified without inversion through the transistors 18, 19 while those in the other are inverted through transistors 21, 22. The circuits incorporate arrangements 32, 37 for equalizing their gains. The circuit outputs are passed via decoupling diodes 23, 24, transistor 45 and one of a number of resistors 42-44 to the input of the magic eye 11. The resistors 42-44 are switched in unison with the input switch and are set so that each input voltage is attenuated such that, if correct, it has a standard reference value.
Patent GB-1096501-A (GB)
Title: Improvements relating to axial piston pump housings
IPC: F04B1/22
Filed: 1965-10-29
Abstract: 1,096,501. Reciprocating pumps. LINDE A.G. Oct. 29, 1965 [Oct. 30, 1964], No. 45809/65. Heading F1A. A pair of axial piston pumps is mounted in a housing 1 having an input shaft 7 carrying a gear 5 which meshes with gears 6 on the pump shafts. The pump shaft bearings 15 are mounted in bushes 14 inserted in apertures in the partition wall 2 and each pump comprising shaft 10, gear 6, bearing 15 and bush 14 is inserted through an end opening having a cover-plate 13. The gear 5 is assembled on the shaft 7 by passing the gear through one of the apertures for the bushes 14. The housing has two seatings 22, to one or both of which may be secured stroke control devices 26. When only one device is used it is connected through a changeover valve 28 to two pipes 21 connected to the pump outlets the valve 28 selecting the higher of the two pressures, and the controlled members (bodies 11) of the pumps are connected together. When individual control is required each pipe 21 is connected to a separate device 26 on each seating 22. Each pump cylinder housing 11 is maintained full of liquid by an auxiliary pump and the inlet valve part communicates directly with the interior of the housing. Reference has been directed by the Comptroller to Specification 992, 334.
Patent GB-1213758-A (GB)
Title: A kiln
IPC: F23M5/00
Filed: 1969-09-17
Abstract: 1,213,758. Kiln roof. KELLER OFENBAU G.m.b.H. 17 Sept., 1969 [18 Sept., 1968], No. 45910/69. Heading F4B. The fire holes in the roof 1 of a kiln have shoulders 4 projecting inwardly at the end of the hole near the kiln so as to support a burner 7, Fig. 3, or a closure 5, Fig. 2. The shoulder 4 may be formed as an annular ledge, the bore flaring outwardly below the ledge. A closure plate 5, Fig. 2, rests on the ledge, and an insulating plug 6 and cap 9 surmount the plate 5 in each bore not provided with a burner.
Patent GB-1475755-A (GB)
Title: Method of and apparatus for controlling advance of underground  armoured conveyors
IPC: E21F13/08
Filed: 1974-10-24
Abstract: 1475755 Mine face conveyers COAL INDUSTRY (PATENTS) Ltd 19 Aug 1975 [24 Oct 1974] 45996/74 Heading B8A A series of devices 1 secured at intervals along a laterally, bodily, movable, mine face conveyer (not otherwise shown), each have a spool 5 of cord, the latter passing off the spool and around a pulley 7 of an impulse generating device 6 before being connected to a fixed part of the mine. As the conveyer is moved laterally towards the mine face (not shown), impulses are generated from the devices 1 and are passed to a receiver (11) (Fig. 1, not shown). The latter suitably actuates a control means (12) in the form of solenoid valves thereby to control the action of advancing rams (13) for the conveyer. The devices 1 may each be replaced by an element (not shown) movable along an anchored track.
Patent GB-1013635-A (GB)
Title: Improvements in or relating to automatic rolling devices with multiple profiled rolls
IPC: B21H1/12
Filed: 1963-11-21
Abstract: 1,013,635. Rolling annular bodies. VYZKUMNY USTAV PRO VALIVA LOZISKA. Nov. 21, 1963 [Nov. 24, 1962], No. 46081/63. Heading B3M. [Also in Division F2]  A rolling device suitable for rolling bearing races 7, Fig. 3, comprises an inner rotatable roll 25 surrounded by profiled rolls 6 each carried by a lever 4 mounted on a rotatable ring 2, radial movement of the lever and axial movement of the rolls 6 being controlled by cams 11 and 21 respectively. Each of five arms 4, pivotally mounted on the ring 2, includes a bore in which is housed a roll 6, and also a spring- loaded roller 10 which follows a cam 11 to determine the attitude of the arm 4. The axial position of each roll 6 is controlled by a spring- loaded plunger 19, Fig. 3, to which is attached a roller 22 co-operating with a rotating cam 21. For feeding and delivering blanks the cam causes each plunger and roll to be withdrawn from the blank, the arm first having been shifted radially outwards by the roller 10. A stop 16, Fig. 1, limits travel of each arm.
Patent GB-1506397-A (GB)
Title: Shaft encoders
IPC: G01P3/481
Filed: 1975-10-17
Abstract: 1506397 Shaft angle measurement FERRANTI Ltd 17 Oct 1975 [24 Oct 1974] 46154/74 Heading G1A and G1N A shaft angle measuring apparatus comprises: means for continuously and repetitively moving a marker past a fixed detector and past a movable detector responsive to shaft displacement; means responsive to the detectors and to a fixed-frequency source to provide two counts of pulses whose numbers represent the shaft angle and one drum rotation respectively; and means for providing further pulses whose number represents the ratio between the two counts. In a photo-electric transducer Fig. 4 a drum 11, driven at high speed (e.g. 6000 rpm) about an axis aligned with a shaft 10, carries extensions 11a, 11b which interrupt respective light beams between a fixed lamp 15 and detector 17 and between a lamp 14 and detector 16 mounted to rotate with the shaft 10. Signals from the movable detector 16 are extracted via slip rings 121 and brushes 122. In an electromagnetic transducer Fig. 5 the drum 11 carries embedded magnetic elements 111 arranged to induce pulses of e.m.f. in a fixed coil 117 and a movable coil 116, signals being transmitted from the latter via a rotary transformer coupling 130, 131. In the circuit of Fig. 2, pulses 21 from the fixed detector, and pulses 20 from the movable detector, cause counters 68, 71 to count, during alternate drum rotations, numbers of first clockpulses 67 respectively representing the times taken for the drum to rotate through one circle and through the angle subtended between the fixed and movable markers. A rate multiplier 72, multiplying second clockpulses 75 by a factor proportional to the counter 68 contents, uses the product to empty the counter 71, whereby the number of second clockpulses 80 gated out during the emptying is an accurate measure of the ratio of counter contents 71 to 78, and errors due to long-term drum-speed variation are thus avoided.
Patent GB-1137720-A (GB)
Title: Improvements in and relating to apparatus for controlling the winding of yarn or the like in textile machines
IPC: D01H1/36
Filed: 1965-11-02
Abstract: 1,137,720. Builder motions. ZINSER TEXTILMASCHINEN G.m.b.H. 2 Nov., 1965 [9 Dec., 1964], No. 46354/65. Heading DID. In a builder motion wherein the reversal of the motion of the traversed member 104 is initiated by an element 105 therein passing reversing control elements 100, 101 (e.g. in the form of photo-electric switches), control signals are 'generated at time intervals of A/v (where A is a constant or programmed parameter and v is the speed of the means delivering yarn to be wound) and the position of at least one of the control elements 100, 101 is adjusted in response to each signal by an adjusting member e.g. a threaded rod 103 through a pre-determined path increment. As shown the threaded shafts 103 are rotated by a pawl and ratchet device 111, 112 which is intermittently actuated by a solenoid 109 operated by the control signals. The control signals are generated by the device of Fig. 8 not shown the motor thereof being synchronised with the motor driving the yarn delivery device so that the 1/v factor of the above equation is provided. It may be arranged that the solenoid 109 performs a number of stepping movements as a result of each control signal. A programming device may be associated with the pulse generator so as to vary the time intervals between the control signals during the build and thus produce packages of various shapes. Solenoid 109 may be replaced by a servomotor (140) Figs. 4 and 5 not shown to rotate the threaded rods carrying the reversing control elements. In Fig. 2 the gearing 108a causes the elements 100, 101 to be driven in opposite directions whereas in Fig. 4 the gearing is such that the elements move in the same direction; thus a variety of package types can be produced. In Fig. 4 the control element 100, 101 can be driven in reverse and at high speed to return them to their initial positions upon completion of a wind. The rotor (140) driving the control elements 100, 101 may operate an impulse generator the pulses of which are counted and the restoring of the traverse device can be initiated when the counted pulses reaches a predetermined number. In the embodiment of Figs. 6 and 7a not shown the threaded rods driving the reversing control element are driven by independent servo-motors activated by separate impulse generators. One of the control elements (100) may alternately operate sensing devices (180, 181) which devices cause reversal of the drive of the associated servo-motor (140a) and cause the control element to traverse between set limits. Thus windings such as in Figs. 16, 17, not shown, can be obtained. The other control element may also be arranged to be reciprocated and packages of the type illustrated in Fig. 18, not shown, obtained.
Patent GB-1437987-A (GB)
IPC: A01N53/02
Filed: 1973-10-08
Abstract: 1437987 Spiro-cyclopropane carboxylate derivatives SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 7 Oct 1974 [8 Oct 1973] 46926/73 Heading C2C The invention, comprises cyclopropane carboxylate derivatives of the general formula wherein R 1  and R 2  each represents an alkyl group; R 3  represents a hydrogen group or an alkynyl or cyano group; R 4  represents an optionally substituted phenyl or heterocyclic group; and n is an integer from 2 to 5, and their preparation by reacting the compounds of formula with a compound of the formula wherein one of the groups X and Y represents a halogen atom and the other represents a hydroxyl group. The compounds of the invention are pesticides and the invention includes pesticidal compositions comprising the compounds of the invention and a carrier and/or a surface active agent, and a process for combating insect and/or acarid pests at a locus by applying, to the locus, a compound or composition of the invention.