baber/WOPTO huggingface dataset:
Patent GB-1489256-A (GB)
Title: Vertical deflection circuits
IPC: H03K4/72
Filed: 1974-12-23
Abstract: 1489256 Vertical deflection circuit SONY CORP 23 Dec 1974 [27 Dec 1973] 55560/74 Heading H3T A vertical deflection circuit, Fig. 1, has a Miller integrator providing a ramp which is applied to a Schmitt trigger 2 associated with a control circuit 2<SP>1</SP> supplying a vertical synch. pulse signal Pv which operates to reset the Miller capacitor. The sawtooth is applied to an amplifier 4, further amplified 5 and applied to deflection coil 6. As shown, a capacitor 7 and resistor 8 provide respectively a parabolic signal to the integrator for waveform shaping and a sawtooth voltage proportional to the deflection current which is fed to the other input of the difference amplifier 4. An embodiment suitable for integration, Fig. 2, has the Miller integrator formed by capacitor 11 and amplifier 80, retrace occurs when transistor 13 is turned on. The output of the integrator, point A, is connected to the Schmitt trigger 2 in which transistor 39 is the current source and feedback passes from the collector of 37 via transistor 41 and the current mirror 44, 48 to the base of transistor 51. Synchronization is obtained by a signal applied to a second input of the Schmitt trigger at the base of transistor 36. A differential amplifier 55, 56, 60 with an input via the potential divider 53, 54 from the Miller capacitor passes an amplified sawtooth to the output stage 5, and receives D.C. feedback at the second input, the base of transistor 56, to stabilize the operating point and also receives, as set by 65, a variable amplitude replica of the sawtooth to permit adjustment of the height of the scanned area. The free-running rate of the sawtooth is set by resistor 35. It is stated to be an advantage that the parabolic correction voltage, obtained at the junction of the deflection coil 6 and capacitor 7 and fed via resistors 63 64, to the integrator, does not require an adjustable component.
Patent GB-1337687-A (GB)
Title: Production of tubular bodies of semiconductor material
IPC: C23C16/01
Filed: 1971-12-01
Abstract: 1337687 Silicon SIEMENS AG 1 Dec 1971 [9 Dec 1970] 55679/71 Heading C1A A tubular body of semi-conductor material, e.g. silicon, is produced by heating a rod-shaped or tubular body of carbon in a reaction gas which will deposit the said semi-conductor on the carrier, and removing the carrier from the tubular body, at least one annular zone of the cylindrical surface of said carrier being heated to a temperature different from that of the remainder of said surface such that an annular thickening of the tubular body is produced at said annular part. The thickening may be located at one end of the tubular body or at an intended point of division of the tube intermediate its ends. The annular zone may be produced by a reduction of the wall thickness of the carrier, the outer diameter remaining constant as in Fig. 1. The carbon carrier 1 is connected electrically by a carbon or graphite bridge element 2 to an inner rod 3, the carrier 1 and rod 3 being connected to electrodes 7 and 6 respectively. Alternatively the carrier may be of constant wall thickness but the inner rod 3 may have a zone of reduced diameter. An insulating cooling gas may be passed along the annular space between the inner rod 3 and the carrier 1. The tube so-formed may, after removal of the carrier, be used as a treatment vessel for semi-conductor bodies, e.g. wafers, which may be placed inside the tube.
Patent GB-1177218-A (GB)
Title: Treatment of Zirconium-Niobium Alloy
Inventor: BOXALL DOUGLAS G
IPC: C22C16/00
Filed: 1966-12-16
Abstract: 1,177,218. Heat-treating zirconium-niobium alloy. CANADIAN GENERAL ELECTRIC CO. Ltd. Dec.1 1967 [Dec.16, 1966], No.56452/66. Heading C7A. A binary alloy of zirconium with 2-3% by weight of niobium is solution treated at 850‹-950‹C., quenched, heavily cold-worked up to 50% and aged in a nuclear reactor under service conditions. The process is particularly disclosed for the manufacture of tubes for use as fuel channels; working may be effected by drawing through a die, but where this is insufficient roll-swaging may be used.
Patent GB-1326147-A (GB)
Title: Wheel cover balancing apparatus
IPC: G01M1/12
Filed: 1971-12-06
Abstract: 1326147 Static balancing apparatus NORTH AMERICAN ROCKWELL CORP 6 Dec 1971 [25 Feb 1971] 56550/71 Heading G1X Apparatus for determining the static out-ofbalance of a wheel cover 18 provided with a plurality of circumferentially spaced, spring fingers 36 comprises a power ram 22 and a fixture 16 having a recess 44 which is chamfered at its open end so that the spring fingers 36 of the cover 18 when located above the fixture can be forced downwardly into the recess 44 by the ram 22 to grip the fixture, the out-of-balance then being determined. As shown, the fixture 16 which may comprise an annular retaining member 40 defining the recess 44 and an adaptor plate 46 having a central aperture 50 for receiving a spindle 14 forming part of a balancing machine is arranged below an air-operable ram 22. Out-of-balance of a wheel cover forced into the recess 44 may be indicated by a bubble indicator 12 and then corrected by one or more weights applied to the cover.
Patent GB-1496128-A (GB)
Title: Explosive joining of pipes in liquid environments
IPC: F16K7/10
Filed: 1974-11-27
Abstract: 1496128 Jointing by tube expanding; explosive welding UNITED KINGDOM ATOMIC ENERGY AUTHORITY 27 Nov 1974 [6 Dec 1973] 56701/73 Headings B3J and B3R Each end of a radial gap 14 between the overlapping ends of pipes 11, 12 to be explosively joined is closed by seals 16, 17 to prevent the ingress of liquid into the gap, at least one of the seals being an inflatable bag. The joint produced may be an interference fit or a metallurgical bond. As shown, a rubber sleeve 16 seals one end of the gap 14 and an inflatable bag 17 the other, the bag 17 being mounted on a guide 18. Water is displaced from the pipes by expansion of an inflatable bag 20, as described in Specification 1,495,559. Any water in the gap is removed through pipes 25 before the gap is washed with clean water, dried with hot air or methylated spirits and filled with air or inert gas. A segmental anvil 19, as described in Specification 1,438,653, is placed around the pipes and an explosive charge 15 fired to form the joint.
Patent GB-1286865-A (GB)
Title: A bending machine
Inventor: PEDDINGHAUS CARL ULLRICH
IPC: B21D7/12
Filed: 1969-11-20
Abstract: 1286865 Angular bending C U PEDDING- HAUS 20 Nov 1969 [23 Nov 1968] 56828/69 Heading B3E [Also in Division G3] A bar is bent into predetermined angles and in a desired sequence by controlling the rotation of a platen 1, having a pair of bending tools (2) (3) which coact in use with a fixed tool, with a plurality of electrical control circuits which are actuated by three slipping contacts 19, 20 and 21 mounted on a disc 4 and corresponding to predetermined angles, e.g. 45, 90 and 180 degrees. A drum 23 having a plurality of sets of pairs of contacts 19<SP>1</SP>-19<SP>11</SP>, 20<SP>1</SP>-20<SP>11</SP> and 21<SP>1</SP>-21<SP>11</SP> is drivable in a series of angular steps and each set of contacts has an adjustable slide 26. If for example a bend of 90 degrees is required a slide 26 is moved to its respective contact 20<SP>1</SP> so that one of the control circuits is closed and current is supplied to the contact 2011 via the slipring 20. The connection of contacts 20<SP>1</SP> and 2011 energizes a relay 27 which actuates a motor 28 to rotate the platen 1 and disc 4. When the disc has rotated through 90 degrees the connection between contacts 20<SP>1</SP> and 20<SP>11</SP> is broken and the motor 28 is therefore stopped. Each slide is manually preset so that movement of the drum by one step after completion of each bend will produce a predetermined bending sequence. A reversible switch 29 is incorporated in the circuit to allow the platen to be rotated in either direction.
Patent GB-1298147-A (GB)
Title: Process for chloronitrosylation of hydrocarbon polymers
IPC: C08G75/20
Filed: 1970-12-01
Abstract: 1298147 Chloronitrosylating polymers BASF WYANDOTTE CORP 1 Dec 1970 [21 Jan 1970] 57135/70 Heading C3P A two-phase process for the chloronitrosylation of hydrocarbon polymers which may be substituted by halogen atoms or carbonyl, carboxyl, sulphonyl or hydroxyl groups comprises contacting the polymer, in the presence of a catalyst, with nitrosyl chloride or chlorine and nitric oxide in a fluorocarbon medium present in such amount that the concentration of the insoluble part of the total amount of polymer present is 1 to 35 weight per cent. Specified polymers are polyethylene, polypropylene, polybutylene, ethylene/propylene copolymers, chlorinated polyethylene, polystyrene, polymethyl styrenes, polybutadiene, polyisobutylene, polychloroprene, butyl rubber, styrene/butadiene copolymers, polysulphones, and polyvinyl and polyvinylidene halides. The catalyst may be light, heat, or a free radical initiator such as a peroxide or azo compound. Preferred fluorocarbons have 1 to 4 carbon atoms and 4 to 10 halogen atoms, at least one of which is fluorine. Examples describe the nitrosylation of (I-III) polyethylene, (IV and V) chlorinated polyethylene and (VII) polypropylene with nitrosyl chloride in 1,1,2-trichloro-1,2,2-trifluoroethane and of (VI) polyethylene with nitrosyl chloride in trichlorofluoromethane, 1,1,2,2-tetrachloro-1,2-difluoroethane, 1,2 - dichloro - 1,1,2,2 - tetrafluoroethane, 1,2 - dibromo - 1,1,2,2 - tetrafluoroethane or dichloridifluoromethane, in the presence of ultra-violet light. The products may be compounded with fillers, e.g. carbon black, and cured by heating with metal oxides, e.g magnesium, zinc, lead or calcium oxides.
Patent GB-1254462-A (GB)
Title: A catalyst for use in transalkylation of alkyl-bezenes
IPC: C07C1/00
Filed: 1968-12-03
Abstract: 1,254,462. Isomerizing and disproportionating alkyl benzenes. TORAY INDUSTRIES Inc. 3 Dec., 1968 [15 April, 1968], No. 57375/68. Heading C5E. [Also in Division C1] Alkyl benzenes are isomerized or transalkylated or disproportionated by contacting them at, for example 300 to 650‹ C., with an exchanged zeolite tuff having a m-xylene adsorption of at least 1% by weight and a weight ratio of the adsorption of benzene to that of m-xylene of 0À9 : 1 to 1À5 : 1, the said tuff being formed from a zeolite tuff comprising gangue and at least 40% by weight of zeolite, by exchanging with hydrogen, at least 50 mole per cent of its alkali metal content. In examples; (1) toluene is disproportionated with the above catalyst to benzene and xylenes at 450‹ C. and a pressure of 30 kg./cm.<SP>2</SP> in the presence of hydrogen, (3) mxylene is isomerized to o- and p-xylene in the presence of hydrogen.
Patent GB-1268449-A (GB)
Title: Gallows for ship-mounted lifting apparatus
Inventor: BRAITHWAITE JOHN CANNON
IPC: B66C13/02
Filed: 1969-11-24
Abstract: 1,268,449. Gallows for ship-mounted hoisting apparatus. VICKERS Ltd. 19 Jan., 1971 [24 Nov., 1969], No. 57468/69. Heading B8B. Lifting apparatus mounted on a ship's deck 3 comprises a gallows with a main frame 1 pivoted at 2 for luffing over the stern by hydraulic rams 4. A hoist rope 5 passes from a winch 6 over a pulley 7 to the load 8. A pendant sub-frame 9 in the form of a V is pivoted by its upper ends at 11 to the upper end of the main frame 1. The rope 5 passes through a tubular guide 10 with flared ends mounted on the subframe 9 to control swaying of the load 8 due to roll of the ship.
Patent GB-1380560-A (GB)
Title: Wet pressing of ceramic articles
IPC: B28B7/02
Filed: 1970-12-05
Abstract: 1380560 Compression moulding P J BATCHELOR E TWIGG and J R ALLRIGHT 19 Jan 1972 [5 Dec 1970] 57895/70 Heading B5A A die assembly for use in the wet pressing of ceramic articles, e.g. clay flatware comprises upper 5 and lower 6 dies having removable and/or adjustable spacing means disposed therebetween. The spacing means may comprise a ring 12 which may rest on annular shims or on shims 14 located on pegs 13 associated with the lower stationary die 6. Adjustment is obtained by removal of one or more shims. Alternatively rings of different height and usable one at a time may be employed. As shown, each die comprises a plaster body 10 and a metal rim 9. The dies may be provided with suction facilities for extracting moisture from the clay. The moulded article(s) may be ejected by applying pressure air through the lower die whilst maintaining suction through the upper movable die, the article then being parted from the upper die by passing pressure air therethrough.
Patent GB-1341620-A (GB)
Title: Device for correcting data as it is recorded onto a tape
IPC: H04L1/00
Filed: 1971-12-14
Abstract: 1341620 Error detection COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 14 Dec 1971 [14 Dec 1970] 57918/71 Heading G4H A system 60-73 for recording data from a store U one character at a time on punched (as shown) or magnetic tape 71 incorporates individual processors Y 1 -Y 9  which compare each required character (a 1 -a 9 ) with that actually recorded (b 1 -b 9 ) to generate outputs indicating the detection of a missing or an excess bit, and a common processor Y activated by said outputs to cause the tape to be reversed by one character so that the data on the tape may be corrected. A motor-driven shaft 62 rotates as each 8-bit character is punched on to the tape; discs 63, 64 and photo-cells 68, 69 provide signals Z (one per character) and T (tape advance) which are fed to the processors Y and to the printer control 73. If no recording error is detected, a new character is called from the store U by a signal A from processor Y; if an excess or a missing hole is detected, a respective signal ab or ab is generated by Y 1 -Y 9  and transmitted to Y. An input ab (missing hole) to Y triggers a modulo-2 counter 93, Fig. 3 (not shown), which suppresses signal A for two pulses of signal Z, an error signal E being generated instead, a signal D causes the printer control 73 to reverse the tape one character, and the original correct character is repunched. An input ab (excess hole) to Y triggers a modulo-3 counter (92) which suppresses A for three pulses of Z, signal E again being generated; signal D reverses the tape D as before, but now a signal G causes a complete row of holes to be punched, whereafter the original character is punched again and the recording resumed. If in either case the re-recorded character is incorrect (i.e. the perforator is at fault), then signal E is used to halt the recording operation. The puncher-reader 65 is operable as a reader alone by means of a switch 74; when this switch is in the punchread position, a signal P is produced and fed to a motor starter 60 for the shaft 62 and to the processors Y 1 -Y 9 .
Patent GB-1165839-A (GB)
Title: Image Recording
IPC: G03G15/26
Filed: 1967-12-20
Abstract: 1,165,839. Electrostatic recording. INTERNATIONAL BUSINESS MACHINES CORP. Dec. 20, 1967 [Jan.4, 1967], No. 57989/67. Heading G2H. In an image recording device, the supply reel for record sheet material has a hollow core in which the developer, either liquid or powder is contained. In one embodiment, see Fig. 5a, the hollow core 22 is closed by a spring-loaded valve 24, 26, movements of which are controlled by a metering means comprising a float 30 in the developer tank 10, a switch 31, solenoid 32, plunger 33, pivot 41 and insulating pad 42. Thus, as the developer level falls in tank 10, pad 42 rises to close switch 31 actuating plunger 33 to open valve means 24, 26. Developer then flows along chute 23 until the level in the tank rises sufficiently to cause switch 33 to open. In a second embodiment, see Fig. 5b the end of the core is sealed by a rapturable membrane 29 which maybe pierced by a knife 40 to permit dispensing of the developer.
Patent GB-1418510-A (GB)
Title: Process for the production of glycol ethers
IPC: C07C/
Filed: 1973-12-18
Abstract: 1418510 Ethylene glycol ethers SOC ITALIANA RESINE SIR SpA 18 Dec 1973 [22 Dec 1972] 58654/73 Heading C2C Ethylene glycol ethers are made by reacting ethylene glycol with a monofunctionally alcohol in the molar ratio of 3 : 1 to 2 : 1, in a first reaction stage, at 70-220 C. and 10-50 kg./cm.<SP>2</SP> absolute; separating excess alcohol from the formed ethylene glycol ethers; reacting the said ethers with ethylene oxide in the molar ratio 1 : 1 to 10 : 1 and with monoethylene glycol ether (recycled from the purification stage) at 100-250 C. in a second reaction stage; separating the mono- and diethylene glycol ethers from the reaction product and partly recycling the former to the second reaction stage such that the ratio of discharged to recycled monoethylene glycol is 0À5 : 1 to 5 : 1.
Patent GB-1400807-A (GB)
Title: Control systems for use in fluid supply systems
IPC: F04B49/00
Filed: 1972-12-20
Abstract: 1400807 Gas turbine engine fuel systems; hydraulic control circuits TRW Inc 20 Dec 1972 [26 Jan 1972] 58782/72 Headings F1G and F1P In a fluid supply system having an inlet from a fluid source and an outlet to a fluid utilizer and having a variable-speed first pump open to the inlet and followed by at least two constant-speed pumps acting in parallel and discharging to the outlet, a normally-closed by-pass valve is provided for at least one but not all of the constant-speed pumps, and a control system opens and closes the by-pass valve in response to pressure differentials between fluid-pressures sensed at at least three separate regions intermediate the inlet and outlet. An aircraft fuel system comprises positive-displacement gear or vane pumps 16, 17 receiving fuel from an engine-driven centrifugal booster pump 19 and discharging in parallel via respective check-valves 53, 54 to an outlet 12 leading to an engine or to hydraulic actuators, oil coolers or other users of pressurized fuel. A secondary inlet 13 may return fuel from these users. A by-pass 60, 61 for the pump 16 is controlled by a by-pass valve 63 which is closed by a spring, the pressures above and below the valve being equalized by an orifice in the end-wall 236. When the engine speed has increased sufficiently, the resultant increase in the pressure rise generated by the pump 19, communicated via conduits 209, 210 to a diaphragm 71b, overcomes the force of a spring 212 and moves an abutment 213 out of contact with a normally-closed valve 200. The pressure drop across a flow-measuring restrictor Rl which measures the fuel flow through the pump 19 acts, via conduits 210, 216, on a diaphragm 72b to assist a spring 230 to hold the valve 200 closed, while the pressure drop across a flow-measuring restrictor R2 which measures the constant fuel flow through the constant-speed pump 17 acts, via conduits 221, 225 on a diaphragm 70b to tend to open the valve. When the engine fuel demand drops below the constant amount passed by the constant-speed pumps 16, 17, a relief valve 55 opens to return the surplus fuel to their inlets. As the demand drops still  further, the ratio between the pressure drops across R1 and R2 eventually drops to a value at which the valve 200 is opened, thereby venting a chamber 235 below the by-pass valve 63 via the conduit 225. This causes the valve 63 to open to recirculate the ouput of the pump 16 to its inlet, the check-valve 53 then closing. The single valve 200 operated by three diaphragms may be replaced by three separate valves connected in series, each valve being subjected to the respective pressure differential. The valve responsive to the pressure rise across the pump 19 may be arranged to remain closed at all speeds below 3000-3500 r.p.m. and at all speeds above 4500-5000 r.p.m. The pressure differential associated with the pump 17 may be the pressure rise across the pump rather than the pressure drop across a restrictor R2. A heater may be provided downstream of the pump 19.
Patent GB-1315139-A (GB)
Title: Double or multiple-glazing window frame
IPC: E06B3/64
Filed: 1970-12-10
Abstract: 1315139 Glazing K A HANSSON 10 Dec 1970 [10 Dec 1969] 58828/70 Heading E1R A double or multiglazed frame has parallel ribs 7 equal in width to a pane 8, and resilient metal rails 10, 11 of channel form, the legs of the rails having flanges engaging in recesses in the ribs.
Patent GB-1334974-A (GB)
Title: Fisheye lens system
IPC: G02B13/06
Filed: 1971-12-20
Abstract: 1334974 Wide angles lens NIPPON KOGAKU KK 20 Dec 1971 [24 Dec 1970] 59058/71 Heading G2J A fisheye lens comprises first and second negative meniscus lens elements L 1 , L 2  convex to the object, a third bi-convex lens element L 3  cemented to a fourth negative meniscus lens element, an aperture stop, and then fifth to eighth lens element L 5  -L 8  including at least one negative lens element L 5 , L 8  (or L 6 ) Fig.3 (not shown) arranged in two lens groups. In one embodiment the groups are two doublets L 5  L 6 , L 7  L 8 ; in another embodiment a triplet L 5 -L 7  and a single element L 8 . A filter may be interposed between element L 4  and the aperture stop. Desirably the back-focus lies in the range 2f to 3f and the following inequalities apply: - 3f < R 1  < 7f R 7  < 0 3f < R 3  < 7f n m  > n p  0À5f < R 2  < 2f V m  < V p  0À5f < R 4  < 2f where n m  and v m  are the mean value of refractive index and dispersion of the negative elements among L 5 -L 8 , and n p  and v p  therefor the positive elements. Optical data for four examples is given.
Patent GB-1451780-A (GB)
IPC: E05D1/00
Filed: 1973-12-27
Abstract: 1451780 Pinless hinges FORMFAC INTERNATIONAL AB 27 Dec 1973 [17 Jan 1973] 59758/73 Heading E2F  In a panel wall comprising two juxtaposed interconnectedly hinged panels 10, the hinged connection is in the form of two complementary burr fastener tapes 11, 12 connected to the end edges of the respective panels. The burr fastener tapes are each affixed to an arcuate frame element 13 attached to its respective panel 10. As shown in Figure 2 the tape 11 is of the closed loop type and the tape 12 is of the cut loop type.
Patent GB-1277538-A (GB)
Title: Axle arrangement in a machine tool
IPC: F16C31/02
Filed: 1970-12-21
Abstract: 1277538 Axle arrangement for a machine tool A MONFORTS 21 Dec 1970 [20 Dec 1969] 60628/70 Heading B3B [Also in Division F2] Anaxlearrangementin a machine toolin which the axle 1 sags under the weight of structural members 4 fitted thereon, wherein the axle is rotatable as well as longitudinally displaceable in a bearing 2, wherein a bearing surface 5 in the axle is formed so as to be of greater diameter than the rest of the axle and wherein the length of the bearing surface is shorter than the bearing by substantially the length of the stroke of longitudinal displacement. Thus the length L is constant as is the deflection of the axle caused by members 4 and this constant deflection can be accounted for during machining. Two or more such arrangements may be utilized together. A typical use of an arrangement is as the shaft for a rotary tool turret of a rotary turret machine.
Patent GB-1260790-A (GB)
Title: Flow deflector for nuclear fuel element assemblies
IPC: G21C3/322
Filed: 1970-12-29
Abstract: 1,260,790. Fuel elements. COMBUSTION ENG. Inc. 29 Dec., 1970 [31 Dec., 1969], No. 61568/70. Heading G6C. A fuel assembly containing a plurality of spaced parallel fuel elements 12 is provided with inverted conical or pyramidal deflectors 20 in the coolant flow channels between the fuel elements to divert the coolant flow. This disrupts the coolant layers adjacent the fuel elements, promotes the mixing of coolant from various channels, and raises the critical heat flux. The deflectors 20 are supported in position at the points of intersection of a grid structure 24,. 26 which may also be a support grid for the fuel elements. The deflectors 20 each have a square base and four deflecting side walls, the latter being oriented so as to face four adjacent fuel elements 12. The side walls are concave and the centres of curvature of the concavities correspond to the centres of the adjacent fuel elements 12.