baber/WOPTO huggingface dataset:
Patent GB-746045-A (GB)
Title: Dimension-indicating device
Inventor: SHAW HARRY
IPC: F01D21/04
Filed: 1953-05-20
Abstract: 746,045. Electric measuring systems. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. May 11, 1954 [May 20, 1953], No. 14149/53. Class 40(1) [Also in Group XXVI] Apparatus for measuring the distance of an object from a datum level comprises a probe which is driven towards the object until the distance separating them is sufficiently small to discharge a condenser connected in parallel, whereupon the driving mechanism is reversed during recharge of the condenser, and the forward motion is then repeated, so that the probe finally takes up a position, about which it dithers, which is indicative of the distance of the object from a datum level. As shown (Fig. 4), the probe 1 is moved towards the blades 55 of a rotating turbine propeller 56 by a motor M through a synchronous transmitter T and receiver motor M1, also driving a counter 53 through a clutch 54 by a second receiver motor M2. Initially the probe 1 is at a datum position and the counter 53 is set at zero. The condenser 59 is charged from a power supply P feeding into a control circuit C comprising a double triode valve 66, the potential relations being such that anode 66c is non-conducting and anode 66d conducting to energize a relay winding 51a operating switch 51 to cause motor M to drive the probe in the forward direction towards the blades 55 until condenser 59 is discharged by a spark from the probe 1 to the tip of the longest blade 55, when the change in conditions in circuit C due to the charging current of condenser 59 causes anode 66c to conduct instead of anode 66d, relay 51a falls, contact 51 changes over, and the motor M is driven in the reverse direction to retract the probe. When condenser 59 is again fully charged relay 51a is again energized, and probe 1 again proceeds forward to repeat the cycle. The charging rate of condenser 59, and the forward and reverse speeds of motor M are such that the probe is finally brought to a position of small steady oscillation with its point just clear of the longest blade 55, and the counter 53 indicates this distance from the datum position. Probe construction. The probe consists of a metal wire 1 (Fig. 1) electrically insulated by a sleeve 2, and slidably mounted in a holder 6 fixed to a casing 4 assembled as required, e.g., to the top of an axial flow turbine. Part of the holder 6 is screwed at 6a to carry a nut 8 acting as a worm wheel 8a meshing with a worm 10 driven through a shaft 18 by the motor M1, mounted on the casing 4. The datum position of the probe is established by an adjustable back contact 33 which lights a lamp 75 (Fig. 4) when the probe is retracted !to this position, overrun being prevented by stop pegs 8b, 6c. Air passages 5c are provided round the probe and the motor to allow for the circulation of cooling air under pressure.
Patent GB-745131-A (GB)
Title: Improvements in or relating to gas turbine engines having multi-stage axial-flow compressors
Inventor: WILDE GEOFFREY LIGHT
IPC: F02C3/06
Filed: 1952-06-04
Abstract: 745,131. Gas turbine engines; axial-flow compressors. ROLLS-ROYCE. Ltd. May 21. 1953 [June 4. 1952], No. 14156/52. Classes 110(1) and 110(3) A gas turbine engine comprises a multi - stage axial - flow air compressor and one or more air turbine stages are arranged at the outlet of the compressor in series flow therewith, the turbine stages being adapted to produce a decrease in the axial velocity of the air, the air leaving the. air turbine being delivered to the combustion equipment of the engine. The air turbine is drivingly connected to the rotor of the air compressor. The compressor rotor has discs such as 13 and blades 112n and the compressor stator 10 has blades l1ln-1, 111n. The air turbine rotor 20 is mounted on the same shaft 21 as the compressor rotor discs and has blades 22, the air turbine casing portion 10a being sharply divergent. The object of the invention is to reduce the overall length of the engine by dispensing with the compressor diffuser. The air passage through the compressor is designed so that the air flow is of constant, increasing axial velocity. Specification 717,553 is referred to.
Patent GB-914810-A (GB)
Title: Improvements in or relating to tubular heat exchangers
IPC: F28F13/06
Filed: 1959-04-24
Abstract: 914,810. Tubular heat-exchangers. HUET, A. April 24, 1959 [May 16, 1958], No. 14162/59. Class 64 (3). A heat-exchanger comprises a plurality of tubes having longitudinal grooves b and fluiddeflecting means c, e or g of undulating form disposed between the tubes. As shown in Fig. 2, the fluid deflecting means are sheaths c having undulations d and disposed around each tube. In the modification of Figs. 3 and 4, the deflecting means is a hollow core e closed at both ends and disposed in the spaces between the tubes taken in sets of four as in Fig. 3. Fig. 5 shows deflecting means g of undulating form and curved to be arranged concentrically with the tubes which are in in-line formation. The tubes may also have transverse grooves and the longitudinal grooves may have a slightly undulated form instead of being rectilinear.
Patent GB-611869-A (GB)
Title: Improvements in and relating to toilet outfits combined with brushes
IPC: A45D29/20
Filed: 1946-05-11
Abstract: 611,869. Brushes. JOSEPH, R. May 11, 1946, No. 14270. [Class 19] In a toilet outfit of the kind comprising a container which houses toilet articles and consists of a base portion formed by a brush and an openable cover, the container comprises a bottomless box and a cover of equal depth, a bottom being provided to the box by the back of a hair brush fixed in the box and having a depth of half that of the box. As shown .in Fig. 2, the box 1 and cover 7 form a longitudinally partitioned housing for various toilet articles, the removable pad 8 covering a mirror and accommodating folding scissors and a nail file in slots in its upper surface. The edge of the box is inturned to provide a seating for the back of the brush 4 from which it may be detached for cleaning of the bristles 5. In modifications, the cover may slide in grooves in the box or may be a friction-tight fit with it.
Patent GB-301436-A (GB)
Title: Improvements in wireless communication
IPC: H04L27/10
Filed: 1927-05-27
Abstract: 301,436. Robinson, J. May 27, 1927. Secret and selective signalling systems.- Signals are transmitted by using two or more sets of carrier waves or modulations differing in frequency or in some other characteristic, and the radiation is shifted from one carrier to another at a frequency less than the carrier frequencies but greater than the signal frequency; and reception is effected by separate receivers having their detectors connected in opposition to a circuit tuned to the shift frequency. Figs. 1 and 2 show the transmitting and receiving circuits respectively. Two carrier - wave generators V1, V2 are coupled through amplifiers V3, V4 to transmitting aerials A1, A2. These aerials are rendered active alternately by coupling a valve V5, oscillating at the shift frequency, to the grid circuits of the valves V1, V2, causing them to oscillate in turn. The receiver employs separate aerials a1, a2 tuned to the respective waves and connected to detector valve v1, v2 which are coupled in push-pull fashion to a circuit L5, C5 tuned to the shift frequency. The distinctive radiation from the desired transmitter builds up a resonant oscillation in the circuit L5, C5. Other signals or disturbances affecting the receiving circuits a1, a2 simultaneously will not affect the circuit L5, C5. The signal may be sent as a modulation of the frequency or the amplitude of either or both the carrier waves, or of the shift frequency generated by the valve V5. Instead of using separate carrier waves as the alternate channels, separate modulations of a carrier wave or of two carrier waves may be employed. Moreover, one or both channels may comprise two carriers used simultaneously. According to the Provisional Specifications, one of the carrier waves may be suppressed, the signal being sent by intermittent trains of the other carrier. Two receiving circuits are used as in Fig. 2, only one of which is tuned to the carrier wave, and the circuit L5, C5 is tuned to the frequency of intermittence. Specification 278,479 is referred to.
Patent GB-349277-A (GB)
Title: Improvements relating to motor vehicles
IPC: B60G5/03
Filed: 1930-05-09
Abstract: 349,277. Road vehicle suspensions. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. May 9, 1930, No. 14329. Convention date, July 1, 1929. Grant of Patent opposed. [Class 108 (ii).] Four - wheeled vehicles adapted to be readily converted to sixwheeled vehicles and vice versa are constructed with the rear parts of the side-frames shaped to form an arch for the accommodation of two rear driving axles, brackets 16, Fig. 1, being secured to the frame members at the middle of the arch and serving to support the rear ends of the suspension springs 10, when the vehicle is provided with one rear axle only, or alternatively, to support the centres of inverted equalizing springs 12, 14 when two pairs of driving axles are fitted. In the latter case the ends of the springs are connected to saddles 20, bolted to the fixed disc of the brake assembly, through the medium of horizontal trunnions 32 and vertical pivots 30, as shown in Fig. 4.
Patent GB-469153-A (GB)
Title: Improvements in aerial bombs
IPC: F42B12/60
Filed: 1936-05-20
Abstract: 469,153. Aerial bombs. ELSBURY. W. H. May 20, 1936, No. 14331. [Classes 9 (i) and 9 (ii)] Relates to compound bombs intended to be dropped from aircraft and comprising a main central bomb surrounded by subsidiary bombs which, during flight, are released from the main bomb and scattered by centrifugal force. According to the invention, the subsidiary bombs 4 are contiguous with the main bomb 1, are supported on pins 7 projecting from the main bomb, and are secured in place by encircling flexible members 9; each flexible member is attached at one end to the main bomb and at the other end to a socket 10 slipped over a pin on the main bomb and secured thereto by a rod 12 extending downwards from an inverted cup 13; and this cup is normally pressed down by a spring 15 and interlocked with tail fins 5 on the main bomb. When the bomb in dropping has acquired a predetermined speed, air pressure lifts the cup 13, pulling up the rods 12, thereby allowing the subsidiary bombs to slip off from the pins 7. The subsidiary bombs themselves have tail fins 6 to guide them. The lower edge of the cup 13 is notched to interlock the cup with the fins 5, and slight rotational displacement occurring between the cup and the fins after retraction of the cup prevents subsequent full return of the cup. The fins 5 are inclined to cause rotation of the compound bomb. The fins may be pivotally mounted and their inclination may be adjusted about the pivots by a screw-and-nut device.
Patent GB-1531171-A (GB)
Title: Silyl ethers and their use as polymerisation initiators
IPC: C07F7/18
Filed: 1977-04-05
Abstract: 1531171 Silyl ethers; polymerizing unsaturated compounds BAYER AG 5 April 1977 [7 April 1976] 14332/77 Headings C3S and C3P Novel silyl ethers have the formula where each Ar is a C 6-12  aryl radical, optionally methyl-, methoxy- or chlorine-substituted; R<SP>1</SP> is H or as R<SP>11</SP>; R<SP>11</SP> is as R<SP>2</SP> or may be a naphthyl or biphenyl radical, optionally C 1-4  alkyl- or alkoxy-, or chlorine-substituted; R<SP>2</SP> is a C 1-6  alkyl, a C 5-7  cycloalkyl, a C 6-8  aralkyl, or a phenyl radical optionally C 1-4  alkyl- or alkoxy- or chlorine-substituted; and R<SP>3</SP> is a C 1-6  n-alkyl or a phenyl radical. They may be prepared from the corresponding 1,2- diaryl-2-oxocompound by reaction with a metallo-aromatic compound, then with the halosilane. They are useful as free-radical initiators for polymerization of unsaturated compounds, especially unsaturated polyester compositions. In Examples 1-4 benzoin isopropyl ether, methylbenzoin isopropyl ether, benzoic isobutyl ether and benzil diethyl ketal are treated in turn with PhMgBr and Me 3 SiCl to give the products In Examples 5-12 these are used in amounts of 0À1 to 0À3 wt. per cent to cure a phthalic anhydride/maleic anhydride/propylene glycol polyester in styrene (66% solution) at 120- 150 C.; in Example 10 there is also added chalk, zinc stearate and MgO. In Examples 13 and 14 styrene is cured at 110 C. with 0À2 wt. per cent of the silyl ether, and butyl acrylate with 0À3 wt. per cent of the catalyst is boiled in toluene.
Patent GB-183960-A (GB)
Title: An improved splash guard for motor vehicles and the like
IPC: B62D25/18
Filed: 1921-05-23
Abstract: 183,960. Jones, J. W. May 23, 1921. Lateral-splash guards. - A guard for motor vehicles &c. comprises a plate 1 sloping downwardly and outwardly and hinged, on the outside of a wheel 2, to stays 3 secured to the ordinary mud-guard 5. The plate 1 is preferably provided with lugs adapted to pass upon inturned ends 3<a> of the stays 3, and may be formed with tapered and inturned ends and have its edges strengthened with wire or rod. Arms 7, provided with pads, project downwardly and outwardly from the lowerends of the stays 3, and the plate 1 is pressed against the arms 7 by flat springs 8, each of which is secured at one end to a stay 3 and engages at the other end with a catch on the plate 1. Revolving catches 11, provided with pads, are mounted on the stays 3 or mudguard 5, and secure the guard 1 in the raised position. Additional stays 14 may be provided to stiffen the stays 3.
Patent GB-553782-A (GB)
Title: Improvements relating to the boilers of hot water circulation systems
IPC: F24H1/44
Filed: 1942-10-13
Abstract: 553,782. Hot-water boilers. SIGERIST, R. Oct. 13, 1942, No. 14356. Convention date, Oct. 14, 1941. [Class 64 (i)] A tubular element 1 extending across the flue of the boiler of a water heating-system is connected by flexible pipes 8 to the flow and return pipes 10, 9 of the system and has a tubular extension 5 projecting at right angles into the fire space of the boiler.
Patent GB-911476-A (GB)
Title: Process for the manufacture of 2:5-diarylamino-terephthalic acid esters
Filed: 1961-04-20
Abstract: 2:5-Diarylamino-terephthalic acid esters are prepared by heating a 2:5-diarylamino-dihydroterephthalic acid ester with nitrobenzene.  In an example 2:5-di(p-nitroanilino)-dihydroterephthalic acid ester diethyl ester is heated under reflux with nitrobenzene, the crystals of 2 : 5-di(p-nitro-anilino)-terephthalic acid diethyl ester are filtered off, washed with alcohol and dried.  In further examples 2 : 5-di-anilino-, -p-toluidino-, -(11 - or 21-naphthylamino)-, -(21-methyl- or -methoxy-41- or -51-nitro-anilino)-, -(41-hydroxy- or -methoxy-anilino)- and -(21 : 51-dichloro-anilino-terephthalic acid diethyl esters are prepared.
Patent GB-109856-A (GB)
Title: Improvements in Corsets.
Inventor: LEOPOLD JULIUS
IPC: A41C1/08
Filed: 1916-10-10
Abstract: 109,856. Leopold, J., and Beberfeld, M. Oct. 10, 1916. Corsets.-Flaps 26, 27 are attached to side steels 16, 17 of a corset and, after the end 29 has been passed through a metal-reinforced slit 37 in the flap 27, both ends 29, 35 are secured to eyelets 31, 31<a>, 39, 39<a> on the respective steels by hooks 32, 40 or 33, 41. An adjustable support is thus given to the abdomen. The space between the side steels and the front busks is filled with laced sections 19, 20, secured at their sides and upper edges, but free below. The suspenders are secured to straps 42, 43 which connect the lower ends of the husks with the side flaps.
Patent GB-972751-A (GB)
Title: Improvement in electro-magnetic transmission systems operating below ground surface
IPC: H04B13/02
Filed: 1963-04-10
Abstract: 972,751. Signal transmission systems. COMPAGNIE GENERALE DE GEOPHYSIQUE. April 10, 1963 [April 19, 1962], No. 14433/63. Drawings to Specification. Headings H4L, H4R and H4U. [Also in Division H1] In a system in which electromagnetic waves are sent below ground surface, and an amplifier is provided having a pair of input terminals and a pair of output terminals connected to corresponding electrodes in the ground, the output electrodes are first positioned and then the input electrodes are positioned on an equipotential surface of the field due to the output electrodes thereby preventing feedback in the amplifier. The invention is applied to a system in which the earth comprises two conducting layers separated by a high resistivity and the signal is transmitted by applying it to electrodes sunk into the high resistivity layer, the conducting layers acting as a waveguide. The input and output terminals of the amplifier are inserted at an intermediate point in the system into the high resistivity region in the manner described above.
Patent GB-295089-A (GB)
Title: Improvements in or relating to receptacles for containing condiments
IPC: A47G19/24
Filed: 1927-05-30
Abstract: 295,089. Stone, H. E. H. May 30, 1927. Condiment receptacles. - A receptacle a for mustard, sauce, or the like has a body of glass, a removable metal top b provided with a small outlet c, and a thin metal base plate e which is provided with a rim d for attachment to the body.
Patent GB-693975-A (GB)
Title: Anti-static treatment of cloth, paper or leather
IPC: C08J7/00
Filed: 1950-06-09
Abstract: Non-conducting sheet material consisting of fabric, e.g cotton, or of paper or leather used, for example, in handling photographic film, is rendered capable of slowly dissipating charges of static electricity by impregnating with an aqueous solution of an alkali metal or ammonium salt of a condensation product of formaldehyde and a naphthalene sulphonic acid.
Patent GB-150099-A (GB)
Title: Improvements in furnaces for the heat treatment of metals
IPC: B21J17/00
Filed: 1919-06-07
Abstract: 150,099. Gaunt, C. F., Walter, C. M., Marle, M. van, and Gibbons Bros. June 7, 1919. Metal-heating furnaces; discharging; cooling discharged materials; observation devices.-In a furnace for the heat-treatment of metals, having two or more furnace tubes or retorts a, b supported above a quenching-bath f, a rotatable device is provided for causing displacement and diffusion of the quenching-liquid. In the construction shown, in which the lower ends of the tubes are sealed by the quenching-bath, the device consists of a table adapted to carry baskets or containers for receiving the articles as they are discharged. The table is rotated by handles fitted on to studs n on a collar m carried by a central sleeve k. The furnaces are carried by brackets on a central pillar d, and are connected through a cap p to a common flue r. In connexion with each furnace a pillar t is provided carrying a mirror w, and a pulley v over which passes the cable for suspending the articles to be heated. The quenching-bath may be cooled by water circulated through the jacket h.
Patent GB-811344-A (GB)
Title: Improvements in or relating to the manufacture of tubes of concrete and the like material having an arbitrary internal profile
IPC: B28B21/06
Filed: 1956-05-10
Abstract: 811,344. Pipe-casting machines. SMITS, H. F. M. May 10, 1956, No. 14519/56. Class 87(2). A concrete pipe is formed by moving a lower mould 2 mounted on guides 5 upwardly into a stationary mould 1 and casting concrete into the space between the two moulds, whilst vibrating the mould 2 by a vibrator 3. A groove may be formed in the end of the pipe by a ring 7 which may also be vibrated to compact the concrete longitudinally. A linen strip 10 at the top of the mould 2 allows air to escape. When the mould 2 is lowered, it is not vibrated, but a steel strip 11 compresses the concrete radially and smooths it. At the end of its upward movement, pawls 9 engage grooves in the ring 7.
Patent GB-595385-A (GB)
Title: Improvements in or relating to clamps
IPC: B23Q1/28
Filed: 1945-06-08
Abstract: 595,385. Drilling; work-holders. JOHNSON, W. G., and FORWARD, H. June 8, 1945, No. 14605. [Class 83 (iii)] A clamp, which may be used for securing the portable boring machine described in Specification 595,383 to a cylinder block being bored, comprises a body formed of members 13, 14 where - of the former has longitudinal channels 15, 16. A sprocket 18 is journalled on a pin 19 in the body so as to project into both channels and engage with a chain 24 in channel 16, the sprocket being rotatable by a rack or a series of parallel pins 21 slidable in channel 15. The pins are carried by a block 20 which is slidable by a toggle linkage or by a handoperated screw 22 acting through a shock absorber 29. The body, which is secured together by bolts 26, is inserted in a housing 10 in the base 11 of the boring machine so as to project through a T-slot 12 therein with a clamping face 9 engaging the shoulders of the T-slot, and on rotation of the screw 22 the chain 24 is moved to cause a stepped pad 27 attached thereto to engage the base of a cylinder block and clamp the machine thereon. The pad 27 may be tilted about the chain to pass through a bore in the cylinder block.
Patent GB-684943-A (GB)
Title: Improvements relating to temperature-responsive devices in liquid cooled electrical apparatus
IPC: H02H5/08
Filed: 1951-06-20
Abstract: 684,943. Temperature measuring. BRITISH THOMSON-HOUSTON CO., Ltd. June 20, 1951 [June 23, 1950], No. 14637/51. Class 40 (i) [Also in Groups XI and XIII] In a system for cooling the winding 2 of electrical apparatus, e.g. a transformer, by circulating a liquid 6 in which the apparatus is immersed, the system being provided with a temperatureresponsive element 10 in heat exchange relation both to the liquid and to a heating coil 14 energized proportionally to the electric current flowing through the winding 2, means 16 responsive to failure of circulation of the liquid are provided to reduce the proportional energization of the heating coil 14, so that the temperature-responsiveelement 10 is subjected to thermal conditions simulating those of the winding 2 whether the liquid is circulating or not. In the form shown in Fig. 1, a transformer 15 associated with a conductor leading to the transformer '2 energizes the heating-coil 14, and an electric resistance 20 and contacts 18, 19 are arranged in parallel with the coil 20. A contact arm 17, moved by pressuresensitive bellows 16 connected to the liquidcirculating system, bridges the contacts 18, 19 when the liquid is being circulated by the pump 7. If the circulation fails, the pressure on the bellows drops and the arm 17 opens the contacts 18, 19 so that all the current from the transformer 15 flows through the coil 14. The temperatureresponsive element is a fluid-containing bulb 10 in a well 11, and is connected by a capillary tube 13 to an indicating or relay device 12. In a modification, Fig. 2, the temperature-responsive element is a resistance 21 in series with a resistance 31 and an indicating or relay device 23. A contact arm 28 bridges contacts 29, 30 and so short-circuits the resistance 31 when the cooling liquid is circulating, but not if the circulation fails.
Patent GB-1173631-A (GB)
Title: Improved Metal Working Lubricant.
Inventor: DELONG HERBERT KENNETH
IPC: C10M173/00
Filed: 1967-03-30
Abstract: 1,173,631. Rolling. DOW CHEMICAL CO. 30 March, 1967 [4 April, 1966], No. 14638/67. Heading B3M. [Also in Division C5] During the rolling of magnesium and aluminium metals and alloys containing more than 70 wt. per cent of magnesium or aluminium the rolls of the mill are sprayed with an oilin-water emulsion containing: (a) 1-10 wt. per cent of a soluble oil compounded with anionic or non-ionic emulsifying agents, a bactericide, a high pressure lubricant and water; and (b) one or more corrosion inhibitors which are either organophosphates or alkali metal salts of these (see Division C5). The same mill and lubricant can be used for both magnesium and aluminium. Billets of magnesium at 900‹ F. are rolled in six passes with the rolls maintained at 180‹ F.