baber/WOPTO huggingface dataset:
Patent GB-1429889-A (GB)
Title: Flexible sand drain for soft ground and method for constructing the same in the soft ground
IPC: E02B11/00
Filed: 1973-07-23
Abstract: 1429889 Sand drains CHIYODA CHEMICAL ENG & CONSTRUCTION CO Ltd 23 July 1973 [22 May 1973] 35085/73 Heading E1F A flexible sand drain comprises a sand pillar enclosed in a tubular protector 11, Fig. 1, the protector consisting of monofilament woven fabric having sufficiently large meshes to permit passage of the sand to the pillar outwardly through the protector. The protector is formed from two strips of the woven fabric, e.g. polyethylene, the strips being joined along lines 19 spaced from the edges of the strips to provide elongate lugs 21. The method of installing the sand drains in soft ground comprises: arranging a plurality of casings 22, Fig. 8, in a regular polygonal form, each casing being provided with a sealing cover (36), Fig. 4 (not shown); driving the casings simultaneously into the ground by means of a pile-driver 23 having a vibro-hammer 24, a support 28 for the casings and an intermediate vibration-transmitting member 27; inserting a protector 11 into each casing; filling each protector with sand from a hopper 29; introducing compressed air into each casing through inlets (41) with the covers (36) closed; and withdrawing the casings 22 while also vibrating them with the vibro-hammer 24. If the sand drains are to be installed in subaqueous ground, the pile-driver is attached to a floating vessel (45), Fig. 9 (not shown), the protectors are inserted in the casings and filled with sand before driving, and a vibration-transmitting rod (46) is provided between the vibro-hammer and casing support (47).
Patent GB-619207-A (GB)
Title: Improvements in burglar-proof safes
IPC: E05G1/00
Filed: 1946-11-27
Abstract: 619,207. Safes. JASPER, I. Nov. 27, 1946, No. 35170. [Class 44] A burglar-proof safe is divided into two or more compartments by a partition or partitions, the external door covering only 'one compartment, access to the other compartment or compartments being through doors in the partitions normally hidden by sliding panels. A safe for example adapted to be built into a wall recess is divided into three compartments 1, 2, 3, by partitions 4, the external door 5, covering the central compartment only, being hinged to the upper wall. The outer walls 7, 8 of the side compartments are set back from the door 5 and concealed behind the wall. Each partition 4 has a door 9, and concealing the partitions 4 are sliding panels 10 which can be drawn forward when the door 5 is opened. Each panel is locked by means of a projection 15 engaged behind a pair of spring fingers 16 on the partition. Release is effected by means of a key comprising a flat disc with two projecting. pins fitting in apertures in the panel which force the spring fingers back, the apertures being covered by a hood 18. A spring tongue member 19 may be provided in the hood to force the disc members forward to hold the pins in contact with the spring fingers.
Patent GB-1122974-A (GB)
Title: Improvements in or relating to piston rings and piston-ring assemblies
Inventor: PORTER JAMES MONTAGU
IPC: F16J9/14
Filed: 1966-08-05
Abstract: 1,122,974. Piston rings. CORDS PISTON RING CO. Ltd. 14 July, 1967 [5 Aug., 1966], No. 35269/66. Heading F2T. In a piston ring assembly comprising split rings 3, 4 axially separated by and urged radially outwards by an expander-spacer split ring 2, the ring 2 is corrugated axially to provide top and bottom crests 5 and 6 interconnected by axial web portions 7 and has axially extending end portions 7<SP>1</SP>, which abut when the ring is compressed in use. Lugs 8 formed on the crests 5 and 6 engage the split rings 3 and 4 to urge them against the cylinder wall 11, the rings being of frusto-conical form before assembly in the piston ring groove 10. The expanderspacer ring is formed from stainless steel strip which is cut along one edge to define projections 16 and corrugated. The projections are bent along the lines 19 to form the lugs 8 and the strip is then cut to length and finally bent into a ring which may then be passed between a pair of grinding tools to finish the outer edges of the lugs 8.
Patent GB-1388369-A (GB)
Title: Keyboard input circuits
IPC: G06F15/02
Filed: 1973-07-24
Abstract: 1388369 Keyboards HITACHI Ltd 24 July 1973 [26 July 1972] 35278/73 Heading G4H A keyboard input circuit comprises a plurality of blocks of keys, and means to supply to each block a first plurality of relatively-phase-shifted timing pulse trains to multiplex information relating to depression of a key, the multiplexed key signals being further multiplexed utilizing a second plurality of timing pulse trains having a longer period than the first plurality. A set of numeral keys are scanned sequentially (by clock signals), at the same time as a set of function keys, producing a time-significant pulse on one of two lines which are sampled in turn by respective signals to feed a set of AND gates enabled in turn by the key scanning clock signals and one of them also by one of the two sampling signals. One of the AND gates produces an output which is encoded into binary form by OR gates and an AND gate enabled by said one of the two sampling signals. The encoded output is stored in flip-flops. A start pulse generator provides an enabling input to the AND gates preceding the encoder to limit the output signal duration. The AND gate used in the encoding produces one "type" bit in the encoded output which distinguishes a numeral key from a function key. That one of the set of AND gates preceding the encoding which receives said one of the two sampling signals does so to result in the decimal point function being encoded with the "type bit" having the value used for numerals. The storage flip-flops may alternatively precede the encoder. The key scanning clock signals are also used as display digit switching signals.
Patent GB-849648-A (GB)
Title: Sliding lock for knitting machines
IPC: D04B15/36
Filed: 1958-11-04
Abstract: 849,648. Knitting-machines. PALIZ-HOLDING A.G. Nov. 4, 1958 [Nov. 11, 1957], No. 35410/58. Class 74 (2). On the, or each, stitch cam of a straight-bed sliding- needle machine is provided an element having a needle butt guide surface substantially parallel to the direction of traverse, which surface, when the cam is operative, trails the active face of the cam, is located nearer to the front of the needle bed than the extreme position to which the needle butts are retracted by the cam and prevents premature and uneven advance of the needles under the pull of the fabric, as they leave the stitch cam; and when the stroke of the lock is reversed, the element is moved by the needle butts so that it either again trails the cam or is inactive. In Figs. 2 and 4, the stitch cams 6, 7 are provided, each with a pivoted element 13 or 13<SP>1</SP> against the leading flank (23, say) of which the leading needle butt 4 abuts, as it descends the cam, to swing the element about its pivot 21 into the trailing position in which that flank becomes the surface delaying needle advance. A spring 24 may be provided to ensure that the element shall not be in the position (chain line) in which the butt 4 will strike its apex. In Fig. 5, the element 25 is slid by contact of the leading needle butt with one of its side edges so that its edge 26 trails the cam and controls needles after they leave the knock-over surface 17. In Fig. 6, the element 27 projects from the stitch cam 7a during the traverse in which it trails it, but, on the other traverse, is swung into inactive position, against the action of a spring 29, by the needle butts, as they descend the cam flank 16. In Fig. 9, the needle-controlling surface 20<SP>1</SP> of element 34 is active when the cam is moving to the left but, on the reverse stroke of the lock, is pushed down a pin 34<SP>1</SP>, against spring action, by contact of the needle butts with a ramp 35 on the element. In Fig. 11, the needle-controlling surface 20<SP>11</SP> is at the end of a plate-spring 38 mounted on the lock-plate and pushed out of the way by the needle butts when the cam moves to the right. The stitch cams 6 and 7 may be moved between active and inactive (dotted) positions so that when the yarn is laid in the needle hooks by hand, the leading cam on each traverse may be put out of action; when the yarn is supplied by a yarn guide, both cams remain active.
Patent GB-858271-A (GB)
Title: Process for the preparation of 20-mono-enol acylates of 11:20-diketo steroids
IPC: C07J5/00
Filed: 1959-10-20
Abstract: 20-Mono-enol acylates of 11 : 20-diketo-steroids are prepared by reacting the 11 : 20-diketosteroids with a carboxylic anhydride in presence of an organic solvent and a mono-, di- or trinitro-aryl sulphonic acid.  Preferred anhydrides are derived from aliphatic acids with 2 to 6 carbon atoms.  Suitable solvents include 1 : 2-dichloro-ethane, carbon tetrachloride, ethers and dioxan and suitable acids are mono-, di- and trinitro benzene and toluene sulphonic acids and 2 : 4-dinitro naphthyl sulphonic acid, which may also contain further substituents such as halogen atoms or hydroxyl, amino, carboxyl or alkyl radicals.  Examples describe the preparation of \se17(20)-3a  : 20-di-acetoxy-11-keto-pregnene and the corresponding 16a -methyl compound, and \se17(20)-3b  : 20-di-acetoxy-11-keto-allopregnene by the process of the invention ; and their conversion to 3a  : 17a -dihydroxy-11 : 20-diketo-pregnane and the corresponding 16a -methyl compound and 3b  : 17a -dihydroxy-11 : 20-diketoallopregnane respectively by oxidation with mono-perphthalic acid and subsequent hydrolysis. Specification 739,591 is referred to.
Patent GB-1566624-A (GB)
Title: Optical fire-detector
IPC: G08B17/10
Filed: 1977-08-24
Abstract: A radiation transmitter (20) generates a beam, generated by a modulator (22), with phase-inverted relationship in a first wavelength band and a second wavelength band. After passing through the room to be monitored, the said beam is received by a radiation detector (26). The latter has a first device (27, 28) for individual measuring of the radiation intensity in the two wavelength bands and a second device (38, 40, 42) for determining the changes in intensity. Between the first device and the second device there is connected a demodulator (30), in which a summing device (31) is connected to two radiation-sensitive elements (27, 28) of the first device. A multiplying device (34) shifts the gain in a single path synchronously with the mutually phase-inverted modulation in the two wavelength bands. This achieves the effect that the flickering caused, for example by the ambient electric lighting or by mechanical effects (heavy traffic on wet road or the like), is suppressed well. <IMAGE>
Patent GB-1517794-A (GB)
Title: Optical guidance systems for missiles
IPC: G05D1/12
Filed: 1975-08-28
Abstract: 1517794 Missile guidance systems BOFORS AB 28 Aug 1975 [28 Aug 1974 4 Dec 1974] 35613/75 Heading G3N The power of a light beam in an optical missile guidance system is controlled in such a way that the beam is of low power until firing and the power of the beam is increased during flight of the missile. As described, a laser diode (1), Fig. 1 (not shown) is controlled by a pulser (2) controlled in turn by a servodevice (3) which compares a signal from a photo-detector (5) in the beam and a reference signal Fig. 3, from a control circuit (4) shown in Fig. 2. Before firing, transistor 8 is kept on by a negative signal applied to its base, whereby transistors 9, 10 are on, off respectively and a voltage Po is transmitted from the junction of resistors 15, 16 to servodevice 21. Upon firing, a positive signal is applied to transistor 8 to switch it off; capacitor 20 begins to charge and so transistor 9 begins to turn off. The voltage between resistors 15, 16 rises as shown in Fig. 3 until at time t 1  transistor 10 turns on, causing the output to servo 21 to remain constant at Pm.
Patent GB-523536-A (GB)
Title: Improvements in or relating to pressure and vacuum gauges and vapour pressure thermometers
Filed: 1938-12-08
Abstract: 523,536. Pressure gauges. CAPSEY, L. W. C., and TOMEY & SONS, Ltd., J. Dec. 8, 1938, No. 35753. [Class 106 (ii)] In an instrument of the Bourden type, rigid stops hare provided which come into operation successively on the tube a towards the free end to reduce its effective measuring length. The stops are formed by radial screws h adjustable in the casing g which may be strengthened to receive them. In the case of a gauge arranged for measuring increase and decrease in pressure relative to the atmosphere, the tube is arranged to contact the first stud when the pointer is at zero.
Patent GB-325614-A (GB)
Title: Improvements in electrical selectors
IPC: H04Q1/38
Filed: 1928-12-05
Abstract: 325,614. Relay Automatic Telephone Co., Ltd., and Johnson, B. B. Dec. 5, 1928. Selective distant control systems.-The transmission of ten signals over two wires, e.g. in a telephone operator's keyboard equipment or in the code transmission of a wanted number, is effected by connecting to each wire 1, 2 at the receiving end a pair of oppositely-polarized relays A, B; C, D, and by applying to the wires at the transmitting end various combinations of positive, negative, and alternating potential. The relays A, D control storage groups MA - - MD, HA - - HD, having change-over relays CM, CH, one of which is operated at the end of each signal by the release! of the operated relay A - - D, and in order to prevent premature operation of a change-over relay when alternating potential is being applied due to the release of one of a pair of relays before the other has operated, it is arranged that when alternating potential is applied to one wire, either positive or negative, steady potential is applied to the other wire and is connected up slightly prior to and disconnected slightly after the connection of the alternating potential.
Patent GB-800448-A (GB)
Title: High voltage insulator for radio tube sockets
IPC: H01R33/76
Filed: 1956-11-23
Abstract: 800,448. Holders for thermionic valves; electrostatic shields for couplings. STANDARD TELEPHONES & CABLES, Ltd. Nov. 23, 1956 [Nov. 25, 1955], No. 35878/56. Class 38(1). An insulating corona bushing for a highvoltage valve comprises a sleeve 14 concentric and integral with the rim 11 of a cup 10, a wafer holder 4, 5 being secured on rim 11 by screws 12 threaded in holes in pilasters 13, a mounting flange 15 being provided on the sleeve. The insulating material may be a thermoplastic.
Patent GB-1000323-A (GB)
Title: Hyper-eutectic aluminium silicon alloys
IPC: C22C21/02
Filed: 1963-09-12
Abstract: A process for preparing a hyper-eutectic aluminium silicon alloy (e.g. containing about 21% Si) comprises preparing a melt of the Al and Si in the correct proportions, adding magnesium or manganese phosphide as a nucleation catalyst and rapidly solidifying the melt. Preferably 0.2% of the nucleation catalyst is added and the melt is held in a molten condition for a period of time to optimize the effect of the addition.
Patent GB-853811-A (GB)
Title: Improvements in or relating to hydraulic gear pumps or motors
IPC: F04C2/08
Filed: 1958-11-10
Abstract: 853,811. Gear pumps and motors. BOSCH G.m.b.H., R. Nov. 10, 1958 [Nov. 9, 1957], No. 35947/58. Class 110 (2). In a gear pump or motor, Figs. 1 and 3, the gear-wheels are disposed between a flanged end-plate 23 and two C-shaped resilient end - plates 41, 42. The shaft 13 of one gear-wheel has a through bore 47 and the shaft 18 of the other gear-wheel has a blind bore 48 terminating in an outlet 49 adjacent the shaft sealing-means 19. Cover dies 12 constituting a force fit in the pump housing define lubricating chambers 51, 52, 53 which are interconnected as shown. The member 23 is grooved to receive a seal 35 defining aT-shaped portion 37 communicating with the outlet zone of the pump through a bore 38. In a modification, Fig. 5, the end plates 61, 62 are provided with spring steel strips 63 and the shape of the end-plate 60 is somewhat modified.
Patent GB-1430257-A (GB)
Title: Programme-controlled data processing systems
IPC: H04L12/24
Filed: 1973-07-30
Abstract: 1430257 Data processing system SIEMENS AG 30 July 1973 [18 Sept 1972] 36134/73 Heading G4A A data processing system comprising a number of processing units VE1-VEn and at least two, normally redundant, stores S1, S2 each connected in parallel to all processing units each of which has a comparator means V1-V3 for detecting incorrect redundant operation, is arranged selectively to operate the stores non- redundantly without loss of synchronism. To this end each processor requiring storage access sends a request signal to all the stores together with data specifying whether, and if so which, stores are not to execute the requested operation. The specified store(s) perform an idle cycle in order to maintain synchronism. Non- redundant operations are used, e.g. with less important data which is stored only in one store, more important data being stored redundantly in more than one store. In the event that two processors make simultaneous requests for non-redundant operations in different ones of two stores, both processors may be given access to their respective stores and idle cycles are avoided. It is stated that each store may be formed from a number of subsidiary stores M, N, &c. In the event that two processors make simultaneous requests for non-redundant operations in respect of different subsidiary stores in different ones of two such stores, it is necessary for the subsidiary stores in each store corresponding to that subsidiary store in the other store in which a non-redundant operation is being performed, to perform an idle cycle. For redundant operation the comparators V1-V3 compare both control and data signals exchanged between the stores and the processors. For non-redundant operation only the control signals are compared. It is stated that the stores may incorporate parity checking circuits to be used as an additional and the sole error check in the case of redundant and non- redundant operations, respectively. Simultaneous requests by two or more processors for the same store are resolved in accordance with the priorities of the processors.
Patent GB-489598-A (GB)
Title: Improvements in or relating to resonant electrical lines
IPC: H01P7/04
Filed: 1937-12-30
Abstract: 489,598. Electric resonators. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 30, 1937, No. 36154. Convention date, Jan. 4. [Class 40 (iii)] A coaxial-cylinder resonator is folded up to make it compact, a set of coaxial cylinders being connected in series to form an electrical path a quarter of a wave-length long. At the short-circuited end, to which the oscillator O may be directly connected as shown, the inner and outer conductors are the opposed surfaces of the cylinders 10, 11. This portion of the electrical path is in series with the next portion comprising the opposed surfaces of cylinders 11, 12, and the path ends with the opposed surfaces of cylinders 13, 14, which are opencircuited. The ratio of the diameters of each pair of surfaces may be the same, allowance being made for the thickness of the cylinder walls, or the effect of a lumped capacity may be obtained by giving a relatively small ratio to the pair of diameters at the open-circuited end. In a modification, Fig. 2 (not shown), the open-circuited end may be outside and the short-circuited end inside. Connection may be made at a current antinode at 17 or at a voltage antinode at 19 through a coupling condenser 18, or magnetic coupling may be effected by loops 22, 23, 24 which, for close coupling, are located at an angle of the structure. Loops 22, 23 may be connected respectively to the output and input of two stages of an amplifier.
Patent GB-1317992-A (GB)
Title: Gas turbine power plant
IPC: F02C7/18
Filed: 1970-07-27
Abstract: 1317992 Gas turbine engines - cooling GENERAL ELECTRIC CO 27 July 1970 [4 Aug 1969] 36260/70 Headings F1G and FIT The invention relates to a method of cooling the casing of a gas turbine plant in which air under pressure is passed through the nozzle of an ejector thereby drawing in atmospheric air, the mixture of primary and secondary air flows being discharged through cooling holes in the casing. The plant shown comprises a turbine casing 2 and an exhaust casing 3, the turbine comprising inlet nozzle guide vanes 4 and interstage guide vanes 4a, also first stage rotor blades 6 and second stage rotor blades 7. An annular chamber 9 is formed by the stator parts 8, 10, 11 and 2 and a further annular chamber 15 is formed by stator parts 13,14. Air under pressure which may be tapped from the engine compressor, not shown, is supplied to the chamber 9 and discharges therefrom through a series of ejector nozzles 19 which are disposed opposite cooling air holes 20 formed in the casing 2. The pressure air discharging from the nozzles draws in atmospheric air, the mixture of primary and secondary air acting to cool the casing and the discharging into the chamber 15. The air then flows through hollow struts 12 which extend across the turbine exhaust duct, the air finally discharging to atmosphere as shown by the arrows. The cooling air holes 20 may be of uniform section as shown in Fig.2 or they may be of divergent form. The plant is enclosed within an outer casing 2a, the atmospheric air being drawn from the space 3a within the casing.
Patent GB-831506-A (GB)
Title: Improvements in or relating to electric magnetic gear couplings
IPC: H01R43/14
Filed: 1956-11-27
Abstract: 831,506. Brushes for dynamoelectric machines. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. Nov. 27, 1956 [May 3, 1956], No. 36296/56. Class 35. In an electromagnetic gear coupling to which current is supplied by a rotating slip ring 1 and one or more currentcarrying brushes 2, the ring surface is cleaned by at least one dummy brush 3 which slides on the said ring and carries no current. The currentcarrying and dummy brushes 2, 3 may be of different materials and dimensions from each other.
Patent GB-410898-A (GB)
Title: Improvements relating to the production of metal castings
IPC: B22D27/04
Filed: 1932-12-23
Abstract: 410,898. Casting. BAILEY, R. W., 20, Grange Avenue, Hale, Cheshire, ENGLISH STEEL CORPORATION, Ltd., Vickers Works, Sheffield, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Dec. 23, 1932, No. 36425. [Class 83 (i).] Casting processes ; moulds. -In the method of casting wherein a substance of low melting point, such as a liquid metal or alloy or a mixture of metal salts, is introduced into the space which arises between the casting and the mould on solidification, a screen or barrier projecting from the interior surface of the mould is employed to restrict the substance to certain parts of the casting. A mould 1, Fig. 1, has an inlet 6 with a refractory lining 7 for bottom-pouring of the casting metal, the inner end of the inlet extending into a central portion 5 which is detachable from the base 2. A ring 11 fits into a recess 10 between the members 2, 5, and projects into the mould. After casting the metal 4, the lower part of the ring 11 prevents lead which is introduced through an inlet 9 to fill the space 4<a> from reaching the inlet 6. The ring is taken out with the cast ingot, and the/part projecting from the casting is removed. A mould for casting rolls comprises a chill 12, Fig. 2, for the body portion, and boxes 13, 15 with refractory material for the end portions. Lead is introduced under pressure from a container 22 through an inlet 20 formed in a ring 27 separated by gaskets 29 from the upper and lower mould sections. A ring 28 acts as a screen to prevent lead reaching the lower portion of the mould, and may be tinned to facilitate bonding of the inner part with the casting. The ring 27 may be formed with thin walls and have a refractory coating to prevent chilling of the lower portion of the roll. According to the Provisional Specification the barrier or screen may be perforated to facilitate bonding with the cast metal.