baber/WOPTO huggingface dataset:
Patent GB-1404489-A (GB)
Title: Carrier reproducing circuitry
IPC: H04L27/18
Filed: 1972-12-01
Abstract: 1404489 Data transmission; carrier extracting circuits FUJITSU Ltd 1 Dec 1972 [1 Dec 1971] 55736/72 Heading H4P The carrier signal extracted at 10<SP>1</SP>, Fig. 3, from for example a received PSK signal, is freed from filter and noise (Fig. 2A, not shown) by being sampled at 12<SP>1</SP> at the bit frequency 2B of the data which modulates the carrier, and at the centre of each data bit period. The result 2C is filtered at 14<SP>1</SP> to give a continuous frequency signal 2D. The carrier extracting circuit 10<SP>1</SP> preferably multiplies the received signal by the number of phases used in the PSK system (e.g. 8), and the output of the band-pass filter 14<SP>1</SP> must then be divided by this number at 34<SP>1</SP>. A further bandpass filter 36 then gives the output at the carrier frequency, and a limiter 32 stabilizes the output amplitude. The clock CL is synchronized with the data bit frequency and its output is shaped at 26 to give a square wave whose level is controlled at 28. Sampling is effected thereby at 12<SP>1</SP> at the centre of each data bit period, so as to exclude phase errors possibly arising between adjacent bits. If the carrier frequency is 70 MHz, the input to divider 34 is 560 MHz; and to permit a lower frequency divider to be used, the 560 MHz signal may be mixed with a local oscillator signal of 65 MHz multiplied by 8 up to 520 MHz, thus giving a 40 MHz signal to be divided at 34 down to 5 MHz. The latter is then mixed with the local oscillator signal to re-obtain the desired 70 MHz output into B.P.F. 36. Transistor circuitry is used (Fig. 4, not shown) using constant K filters for the B.P.F.'s, and using a delay line in the shaper 26.
Patent GB-1165828-A (GB)
Title: Process of Forming Oxide Coatings on Fe-Al and V-Al Alloys
IPC: C22C27/00
Filed: 1967-12-08
Abstract: 1,165,828. Bearings. UNITED STATES ATOMIC ENERGY COMMISSION. 8 Dec., 1967 [13 Dec., 1966], No. 55831/67. Heading F2A. [Also in Division C7] An anti-seizing surface suitable for use in a liquid sodium system is formed by oxidizing an alloy consisting of Fe containing 3-35 atom per cent Al or an alloy consisting of V containing 3-40 atom per cent Al, by heating the alloys in an atmosphere of helium and hydrogen saturated with water vapour at 0 C., at about 1000 C.
Patent GB-1409572-A (GB)
Title: Anchor escapement for clocks and watches
IPC: G04B19/02
Filed: 1972-12-04
Abstract: 1409572 Escapements X THEURILLAT 4 Dec 1972 [6 Dec 1971 3 25 Jan 1972 29 May 1972] 55920/72 Heading G3T In an anchor escapement the gaps between teeth 2 of the escape wheel 1 are irregular so that the wheel jumps every second, this jump being made visible by an indicator driven by the wheel. The indicator may comprise a pointer, which may carry a member of a colour which contrasts with fixed zones of a different colour Figs. 3, 4 (not shown). Alternatively, coloured segments may become visible through moving apertures.
Patent GB-1174928-A (GB)
Title: Improvements to Antenna Systems with Electronically Scanned Arrays used in Electromagnetic Detection
IPC: H01Q3/34
Filed: 1966-12-20
Abstract: 1,174,928. Aerials. THOMSON-CSF. 20 Dec., 1966 [22 Dec., 1965], No. 57060/66. Heading H4A. In an antenna radiation lobe scanning system for a pulse radar, the antenna is formed of an array of elementary antenna, p.q, each of which has a phase adjuster, 1.p.q, in the associated feeder, S.p.q. Each adjuster provides a predetermined incremental phase change, in response to a computer, 3, to effect the required lobe movement. The inputs 31, 32, 33 to the computer correspond, respectively, to the required elevation and azimuth angles and the working frequency. The incremental phase changes do not all give the required lobe direction accurately and error correction is effected by controlling the sign of the incremental changes to each source so as to bring the algebraic sum of the changes, for that source, closest to the required total phase change. The sign control of the ancremental phase changes is effected by codes stored in two memories 4, 5. The two codes are applied, respectively, to alternate pulses in order to reduce the formation of subsidiary lobes. In a modification, the computer calculates a theoretical incremental value from the required elevation and azimuth values and then compares this with the mere. mental value to determine the incremental change nearest to the required value.
Patent GB-1374977-A (GB)
Title: Double-walled containers and their manufacture
IPC: F17C1/00
Filed: 1970-12-02
Abstract: 1374977 Making double walled containers, stamping FAIREY STAINLESS Ltd 26 Nov 1971 [2 Dec 1970] 57247/70 Headings B3A and B3Q [Also in Division B8] A method of making a double walled container having an inner thin-walled vessel of stainless steel and an outer rigid vessel comprises forming two or more co-operating pieces or domes 25, 26, of the inner vessel from sheet stainless steel so as to provide mating edges, welding an entry boss 28 to one of the pieces, welding the mating edges of the pieces together, inserting the inner vessel in a rigid outer vessel and admitting pressurized fluid to expand the inner vessel to conform substantially to the internal shape of the outer vessel, the expansion of the inner vessel causing the seam or seams between the pieces to be stretched. A flange 27 is formed on the rim of each dome 25, 26 and the upper dome is apertured to accommodate the entry boss 28. The flanges 27 are plasma are welded together to form a joint standing proud of the container. Pressed aluminium domes 29, 30 are assembled around the inner container and the assembly is placed in an expansion rig. A metered quantity of hydraulic fluid under pressure is admitted to the inner container thereby expanding it to its required capacity. Air from between the containers escapes through the joint between the outer domes. As the inner container expands it enters rolling ways 31 and the flanges 27 at the welded joint tend to flatten and they enter a recess formed by a joggled edge 32 of the dome 30. A dimple 33 in the latter dome may contain adhesive to secure the inner container against the risk of implosion caused by a vacuum formed during cleaning. The assembly is removed from the rig, the domes are welded together and a skirt 35, is welded to the end of the container. A skirt 36 may be welded to the other end of the container and both skirts may be provided with hand holes and drain holes. An aperture having an inwardly turned rim 43 is formed in the dome 25, (Fig. 8) and a stainless steel liner 38 is inserted into it, the liner being surrounded by an aluminium sleeve 42. A flange 41 on the liner is welded to the rim 43 and then the sleeve is welded to the dome 29. In an alternative embodiment, Figs. 1-3 (not shown), an inner container (10) is formed from a tube (11), which has outwardly directed flanges (15) at either end, and flat end plates (12). The edges of the plates are welded to the flanges and as the container is expanded the crevices existing between the flange and the end plates, Fig. 2, are substantially eliminated. A joggled joint, Figs. 4, 5 (not shown) may be used instead. The outer container may be aluminium or plastics reinforced with aluminium.
Patent GB-1412652-A (GB)
Title: Interactive horizon building analysis and editing
IPC: G06F3/037
Filed: 1972-12-12
Abstract: 1412652 Seismic signal processing TEXAS INSTRUMENTS Inc 12 Dec 1972 [30 Dec 1971] 57276/72 Heading H4D Seismic data relating to subsurface horizon segments and stored in a computer system are edited by providing a display of two adjacent phantom (i.e. postulated) horizons and of those segments which lie within prescribed tolerances about the phantom horizons, then selecting, modifying or omitting portions of the displayed segment data so as to identify the most likely location of true horizons in the region of the phantom horizons. In the embodiment described the data from, e.g. a common depth point survey are available in graph form and also as segment data files in computer storage. An operator initially uses an interactive device comprising a stylus movable over the graph (in this case a stacked time section) to store, in the computer, data identifying phantom horizons judged to coincide with the most likely true horizons. A banks of keys is then used by the operator to call up various sub-routines in the editing programme. This programme is arranged to (a) recall from storage the data for first and second adjacent phantom horizons and for those segments which lie within prescribed time-gates about the phantom horizons; (b) provide on respective storage CRT's a first display of the amplitudes of seismic signals giving rise to the segments recalled, a second display of the recalled data on depthpoint (i.e. horizontal distance along a survey line)-versus-time axes, a third display of the RMS and interval velocity values for the recalled data (both velocities as a function of depthpoint) an a fourth display of accumulated results of the editing on depthpointversus-time axes; (c) enable the operator to select from the displayed data those satisfying particular amplitude, time and velocity constraints; (d) accumulate the selected data in a store and display it on the fourth display; (e) update the displays so that the effect, e.g. on the interval velocity of selecting and omitting segment data can be seen immediately; (f) repeat the recalling, displaying and selecting for different iterated pairs of phantom horizons such that at each repetition the second of the two horizons of one display becomes the first of the two horizons of the succeeding display, and (g) provide hard copies of selected ones of the displays. Flow charts for the sub-routines are given.
Patent GB-1182316-A (GB)
Title: Improvements in or relating to Air Silencers for Turbocharged I. C. Engines
IPC: F02B33/44
Filed: 1967-12-18
Abstract: 1,182,316. Intake silencers. GOTAVERKEN A.B. Dec.18, 1967 [May 30, 1967], No.57314/67. Heading F1B. A silencer located in the substantially 90 degrees bend of a conduit 8 between a turbocharger 6, 7 and the air receiver 10 of a two-stroke I. C. engine 1 comprises a plurality of parallel passages each of which at right angles to the direction of air flow has a depth between the ratios of ¥-1 and 1-1 of the wavelength of the basic compressor sound at the normal engine operating speed. The passages in the bend have their walls covered by damping material 13, e.g. mineral or glass-wool bonded by a plastics material, covered by a perforated sheet 16 and the area of the openings 17 in relation to the pitch of the openings and the thickness of the damping material is such that the resonance frequency of the silencer will substantially correspond to the basic compressor sound. A formula for determination of the silencer resonance frequency is given in the Specification. The silencer 11 acts as a diffuser to the air receiver 10 and its cross-section changes from circular at the connection to the conduit 8 to rectangular at the connection with an air cooler 9. In a further embodiment, Fig. 3 (not shown), a modified arrangement of damping material is provided.
Patent GB-1365888-A (GB)
Title: Physical exercising apparatus
IPC: A63B21/02
Filed: 1971-11-19
Abstract: 1365888 Spring units COMPRETNV 19 Nov 1971 [3 Dec 1970] 57515/70 Heading F2S [Also in Division A6] An exercising apparatus comprises a tubular easing 1 containing a pair of slidable members 3, 4 separated by a resilient compressible member such as a coil spring 5, the members being retained by a stop 2 and a circlip 6. A rod or tube 9 is slidably supported by the members 3, 4 and carries an abutment 12 and a nut 15 to bear against faces 13, 16 respectively. Handles 19, 21 are provided and may be covered by sleeves 20. Graduations 18 may indicate the extent of displacement of the elongate member 9 with respect to the casing. The handles 21 are secured to the casing somewhere between the mid point and one end so that the apparatus may be assembled as shown with the handles well separated, or, by removing nut 15, the rod or tube 9 may be withdrawn from one end and reinserted at the other so that the handles are close together (Fig. 2, not shown).
Patent GB-1369530-A (GB)
Title: Hydraulic system for hydraulically tiltable boat propeller drive units
IPC: F15B11/024
Filed: 1972-12-13
Abstract: 1369530 Hydraulic control circuits VOLVO PENTA A B 13 Dec 1972 [21 Dec 1971] 57594/72 Heading F1P In the circuit shown in Fig.2 when fluid is fed to a space 16 above a piston 32 by a pump 1 and the resistance to movement of the piston rod 35 is below a predetermined level fluid from the chamber 20 is fed into the chamber 16 to produce rapid displacement of the piston. If resistance is above the predetermined level fluid from the chamber 20 is fed to a reservoir 6 resulting in a high-pressure slow displacement. Fluid passes from the pump 1 through a line 2, valve 37 and line 13 to chamber 16. If resistance to piston movement is low the pressure in the system is low and a piston 44 is displaced to open a check valve 45 so that fluid from the chamber 20 passes through a valve 27, line 15, valves 46, 45, chamber 47 and lines 2 and 13 to the chamber 16. When the resistance to piston movement is high the high-pressure produced in the fluid moves a piston 26 which opens a valve 38. Check valve 46 closes the passage to the still open valve 45 so the fluid passes from chamber 20 through line 15, valve 38 and a line 22 to the reservoir. Overload valves 29, 30 and 48 are provided. The valve 41 may be dispensed with in a second embodiment in which the valve 27 is replaced by a valve 50, Fig. 3. The latter has two neutral positions which respectively connect the chamber 20 to either the chamber 16 or the reservoir. The device is used for tilting or trimming the  propeller of a boat and the valve member 51 is connected by a lost-motion linkage to the forward and reverse drive mechanism of the boat.
Patent GB-1209798-A (GB)
Title: Improvements in or relating to wheel hub cover assemblies
IPC: B60B7/10
Filed: 1968-12-04
Abstract: 1,209,798. Vehicle wheel cover discs. W. H. S. ALBRECHT, [trading as LEICHTMETALLAUTOZUBEHOR WALTER H. S. ALBRECHT]. 4 Dec., 1968 [18 Oct., 1968], No. 57689/68. Heading B7C. A wheel hub cover assembly comprises a plastics intermediate ring 20, a separate cover plate 27, e.g. of aluminium, securable to bead 25 on the ring, and a plurality of spring claws 24 circumferentially-spaced apart in the ring, by which claws the assembly is securable to a wheel rim 29. The claws are mounted in pockets moulded in the ring which is made of a thermoplastic plastics material.
Patent GB-1410174-A (GB)
Title: Peristaltic pumps
IPC: F04B43/12
Filed: 1971-12-15
Abstract: 1410174 Peristaltic pumps K S BARRACLOUGH 13 Dec 1972 [15 Dec 1971] 58297/71 Heading F1F [Also in Division A5] A peristaltic pump for use in injecting vaccine into humans or animals comprises a portable housing 1 defining an elongate surface 3 along which extends a flexible tube 4 from an inlet 5 to an outlet 6, the housing 1 having a pistol grip 2 with a trigger 18 which can be depressed to rotate a lever 24 about its pivot 16 so that a roller 11 on the lever squeezes and moves along tube 4 to deliver, in a peristaltic manner, fluid from a needle or nozzle 10 attached to the end of the tube. The lever 24 is biased by a spring 25 to a normal inoperative position whereby the roller 11  is brought opposite a recess 22 in surface 3 so that after return following an injection, the tube 4 is not squeezed and a fresh supply of fluid can be drawn into the tube from a reservoir. An outlet end section 7 has a non-return valve, and the lever pivot 16 is the centre of curvature of the arcuate elongate surface 3. An alternative embodiment shows two levers inter-connected with each other, one carrying the roller, Fig. 1 (not shown). Also envisaged are embodiments where the elongate surface is outside the housing or formed by a further roller. Holes 23 in the trigger can cooperate with pegs to limit the travel of the trigger and thus the amount of fluid pumped, and the reservoir is preferably flexible so that it collapses as fluid is taken therefrom.
Patent GB-1409750-A (GB)
Title: Board game
IPC: A63F3/00
Filed: 1972-12-18
Abstract: 1409750 Board games T J WALLACE and V E BRYANT 18 Dec 1972 58338/72 Heading A6H Apparatus for playing a game representing tennis, table tennis, badminton, squash &c comprises a board marked with lines to represent a court, each court area having an indicium on it, three pieces representing two players and a ball, and means (such as two dice) for randomly selecting one of the indicia. Dials may be provided for recording the score. The board may fold and carry pictures of a crowd and scoreboard. A net may fit on the board. One dice or spinning tops may be used. The dice may be lettered instead of numbered.
Patent GB-1201569-A (GB)
Title: Improvements in and relating to an apparatus treating eggs
IPC: C12M3/00
Filed: 1968-12-09
Abstract: 1,201,569. Preserving shell eggs. CRIMEX N.V. 9 Dec., 1968 [14 Dec., 1967], No. 58373/68. Heading A2D. An apparatus for treating whole shell eggs with a liquid, containing for example an antibiotic or a fungicide, comprises a plurality of vessels 8 circularly mounted on a ring 1 for rotation about a common central axis and communicating with a central vacuum source 11 through a rotary coupling 3; each vessel 8 holding an egg basket, having a sealing lid 10, and including means for connecting the space above the treatment liquid held therein to the vacuum supply and for cutting off the vacuum supply and readmitting atmospheric air after a time interval. The vacuum supply and vents to atmosphere for each vessel 8 are controlled by three-way valves 16 actuated during the rotation of the apparatus by fingers 17 engaging suitably located stationary pins 19. The fingers 17 are curved to effect slow actuation of the valves 16 and hence a gradual pressure change within the vessels 8 on each actuation. Preferably the eggs, after immersion in the treatment liquid in the apparatus, are subjected to reduced pressure for about five minutes and subsequently held in the treatment liquid at atmospheric pressure for about ten minutes, during which total time the apparatus completes one rotation.
Patent GB-1268906-A (GB)
Title: Improvements relating to a method and apparatus for discharging liquids from a container
Inventor: WALLER DAVID JOHN
IPC: B67D1/04
Filed: 1968-12-09
Abstract: 1,268,906. Discharging liquids by gaseous pressure. BOWATER PACKAGING Ltd. Dec. 8, 1969 [Dec. 9, 1968], No.58422/68. Heading F1R. A pressure vessel, 1 for discharging liquids by gaseous pressure from container 3 having an outer case 9 and an inner liner 13, comprising a fluid tight detachable lid provided with an inlet for introducing pressurized gas and an outlet for discharge of liquid from which a dip tube 15 depends, the vessel having a concave base 5, has a platform 7 to support the container above the base 5. The platform is arranged below the uppermost points of the concave surface of the base 5 of the vessel 1. The platform 7 may be a plate or a plurality of rods or a grille.
Patent GB-1329735-A (GB)
Title: Processes for the evaporation of sea water
IPC: C02F1/06
Filed: 1970-12-15
Abstract: 1329735 Desalination of sea water; flash evaporation H TABATA N TABATA and R NAKAJIMA 15 Dec 1970 [15 Dec 1969] 59606/70 Heading BIB Fresh water is produced from sea water by reacting it with added magnesium carbonate so that 90 to 95% of the calcium content is precipitated as calcium carbonate, the sea water is then fitered and the pH of the filtrate is adjusted to 5.0-5.5 with mineral acid (H Cl or H 2 SO 4 ), the sea water is next deaerated and finally introduced into a flash evaporation stage at a temperature less than 80‹C, the flashed vapours being condensed to obtain fresh water. In order to precipitate Ca Co 3 , a slurry of magnesium carbonate is added to the sea water, and the mixture is agitated and heated, preferably at a temperature of 40‹-60‹C for about 3¢ hours. The mixture may be passed to a thickener, and the liquid overflowing therefrom is passed through a sand filter. The filtrate is de-aerated at a temperature of 40 to 55‹C and a pressure of 40 m.m. Hg. The calcium remaining in the deaerated water results in the formation of an invisible corrosion-resisting film of calcium carbonate in the flash evaporator, which may be made of steel. The evaporation may be carried out in a 20-stage flash evaportor, the treated sea water being introduced into the 18th stage (Fig. 5, not shown).
Patent GB-1450928-A (GB)
Title: Shank mounting assemblies for earthworking tools
IPC: A01B35/22
Filed: 1973-12-27
Abstract: 1450928 Mounting soil-working tools MASSEY-FERGUSON Inc 27 Dec 1973 [10 Jan 1973] 59865/73 Heading A1B A shank-mounting assembly 10 for securing a tool to a frame member 14 of an agricultural implement comprises a bracket 18 having a rear flange 26 with an aperture which encloses a shank 12 and forward flanges 30 separated by a central slot. The shank 12 is clamped to a shank support 20 which comprises a pivot rod 40 and a guide plate 42 both welded to a plate 38. If the force F on the soil-working tool 16 exceeds a given value the shank 12 pivots about the rod 40, movement being resisted by two compression springs 58, sideways movement of the tool being restrained by the guide 42 which moves within the slot between the flanges 30.
Patent GB-600704-A (GB)
Abstract: 600,704. Workmen's time recorders. LINDON, S. Oct. 12, 1943, No. 16690. [Class 106 (iv)] Depression of the lever g which actuates the recording mechanism in a workmen's time recorder is normally prevented by the presence beneath the lever of a bolt b. When a solenoid a is energized the bolt b is drawn to the right so that the lever g can then be operated. The switch controlling the solenoid is at a control point and also controls the solenoids of a plurality of other recorders. Contacts on the holt close a circuit to light lamps on the recorder and at the control point to indicate that the recorder is free for operation. The recorder may stamp merely " in " and " out " marks on the inserted cards, a time stamp being unnecessary since the recorder can be operated at the permitted times only. In a modification, the bolt locks the actuating lever by passing through a hole therein, a bell circuit being completed if an attempt is made to force the lever to move.