baber/WOPTO huggingface dataset:
Patent GB-980604-A (GB)
Title: Improvements in or relating to control systems for power-driven units
IPC: G05D1/02
Filed: 1963-04-19
Abstract: 980,604. Inductive control of vehicles. BARRETT ELECTRONICS CORPORATION. April 19, 1963 [April 23, 1962], No. 15589/63. Drawings to Specification. Heading H4U. A control system for causing a self-propelled vehicle (e.g. a lawn mower) to traverse in random manner an area defined by a loop of cable comprises a leader gear following system with the right-hand and left-hand sensing coils connected to the opposite steering motors whereby the vehicle sheers away from the cable instead of following it. As described the system has a reversing switch in the sensing coil connections whereby the mower may be made to follow the cable round the edges of the plot in known manner. The connections are then reversed so that when one of the sensing coils detects an approach to the cable, the relay in the opposite steering motor circuit is energized to steer the mower away from the cable. When the relay is deenergized as the mower leaves the vicinity of the cable, "off-centre " switches mounted adjacent to and actuated by the steering wheels maintain the mower on a substantially linear course. If the mower approaches the boundary cable head-on so that both steering relays are energized a circuit is completed to reverse the drive motor and apply right steering lock. A rear sensing coil stops the drive if the mower should then back up to another part of the boundary cable.
Patent GB-417210-A (GB)
Title: Improvements in and relating to sound-proof windows
IPC: E06B7/10
Filed: 1933-05-31
Abstract: 417,210. Sound - - proof windows; window guards, window ventilators. LAWRENCE, W. L., 75, Westbourne Road, Penarth, Glamorgan. May 31, 1933, No. 15667. [Classes 20 (iii) and 137.] A sound-proof window comprises two or three panes arranged in parallel or substantially parallel planes and some distance apart, the panes being provided with slots and associated deflecting means which permit of ventilation but impede the passage of sound waves. According to one construction, the window comprises two glazed frames 4, 5, hinged at 6, 7, respectively to an outer fixed or sliding frame 1. The panes 2, 3, of the frames 4, 5, have aligned, centrally disposed, horizontal slots 8, 9, and clipped or otherwise secured to the edges of these slots are two sheet-metal deflecting plates 10, 11. The opposed faces of these plates are parallel to one another and are covered by a layer 14 of felt or like sound-absorbing material. The frames 4, 5, are held in their closed positions by ball-catches 16. The slots may alternatively be formed by the gaps between the top and bottom glasses forming a pane, and may be in vertical alignment or staggered. In a modification, the window has three glazed frames, the outer two being hinged to the window frame and provided with slots and associated deflecting means, while the inner frame is fixed and has a slot which is staggered with respect to the slots in the outer frames.
Patent GB-109869-A (GB)
Title: Improvements in Wire Stretching Devices.
Inventor: WITHERS JOSEPH SUTTON
IPC: F16G11/12
Filed: 1916-11-02
Abstract: 109,869. Withers, J, S., (Penning, C. J. H.). Nov. 2, 1916. Wire-strainers comprise a frame or guide adapted to be temporarily or permanently attached to the wire and a strainer proper which is housed in a bearing in the guide during the straining operation and remains in position thereafter. The guide may have the form of a cylindrical cup a provided with a central bearing d for the strainer and with bayonet slots or holes c through which the wire is passed, a fixed or detachable handle f being provided for the guide. The strainer consists of a single piece of round metal bent to the form shown in Fig. 4 with the winding portion g slotted at h. In operation, the slotted part g is passed over the wire into the bearing h, the wire being strained by revolving the device therein and secured in the strained position by means of a notched portion i which engages the wire. A hook, so formed that it can be closed over the wire, may replace the notched locking-piece. In a modification, particularly applicable for joining the ends of broken wires, the guide may be stamped from sheet metal and formed as shown in Fig. 8, the wires being passed through the holes c and the strainer inserted in the bearing d. When used with wire ropes, the guide is made in two box-like halves l, Fig. 12, slotted at c, d to form the bearings for the ropes and the strainer, the two portions being fastened tog'ether during straining by pins m passed through holes n. According to the Provisional Specification, the strainer may be constructed in two parts riveted together, and the slotted winding-drum may be of larger diameter than the remainder of the part g.
Patent GB-981372-A (GB)
Title: Pharmaceutical formulations for oral administration to animals
Inventor: GOWER LESLIE JOHN
IPC: A61K9/00
Filed: 1960-05-04
Abstract: A solid wafer formulation, which readily adheres to the tongue or buccal mucosa of animals, comprises a physiologically active substance, a solid non-toxic adhesive and a non-toxic humectant and plasticizer.  Preferably the wafers have a surface area greater than 300 square millilitres and a thickness from 0,2 to 1,0 mm.  A wafer for piglets is prepared by drying a sheet of paste containing iron powder and copper powder suspended in an aqueous solution of sorbitol and sodium carboxymethylcellulose. In a second example, the active substance is calcium dioxytetracyclinne and the wafer is prepared from sodium carboxymethylcellulose, sorbitol and polyoxyethylated sorbitol. Other adhesives are hydroxyethylcellulose, a water-soluble polyethylene resin, gum tragacanth, gum arabic, gum Karaya, sodium silicate, hydrated aluminium silicate, isinglass, agar-agar, water-soluble alginate, gelatine, casein and albumen. The humectant and plasticizer may by glycerol, propylene glycol, dipropylene glycol, polyoxyethylated sorbitol, polyoxyethylated glycol, polyoxyethylated glycerol, a -methylglycerol, corn syrup or propylene glycol glucoside.
Patent GB-1416241-A (GB)
Title: Device for mounting a release lever in a clutch
IPC: B60K/
Filed: 1973-04-02
Abstract: 1416241 Friction clutches DAIKIN SEISAKUSHO KK 2 April 1973 [17 April 1972] 15699/73 Heading F2C In a friction clutch for a motor vehicle wherein radial release levers 8 of U-shape cross-section are pivoted by a fulcrum pin 11 to an eye bolt 10 fast with a clutch cover 3 and are pivotally connected ty a connecting pin 12 to lugs 4a on a presser plate 4, the fulcrum pin 11 and connecting pin 12 are formed at one end with non-circular cross-sections (11a, 12a) which engage complementary holes (8b, 8c) in the release lever to prevent rotation of the fulcrum pin 11 and connecting pin 12 relative to the lever. The non-circular section may be D- shaped, square or rectangular. The eye bolt 10 is supported on the clutch cover 3 by a nut 9 which is prevented from rotating by a locking plate 15.
Patent GB-476313-A (GB)
Title: Improvements in or relating to moving-map route progress indicators
IPC: G09B29/06
Filed: 1936-06-05
Abstract: 476,313. Route - progress indicators. SUFFIT, R. M. R. COURTOIS.. June 5, 1936, No. 15713. Convention date, June 8, 1935. [Classes 106 (ii) and 106 (iii)] [Also in Group XX] A map route-progress indicator for use on aircraft is provided with a device indicating the height of the aircraft relative to the altitude shown on the map. The pilot follows the route shown on the moving map 2 which together with an altitude map 7 is driven by a device of the kind described in Specification 458,214, through the medium of friction plates 11, 12, in accordance with the ground speed of the aircraft. A pointer 14 or a corresponding spot of light representing the aircraft is moved across the map 7 by a cable 15 adjusted by an aneroid type of altimeter 21. Points of interest may be represented on a large scale, for example, by a photograph 13. The maps 1, 7 may be combined.
Patent GB-408111-A (GB)
Title: Improvements in guide flanges for wheels of rail vehicles
IPC: B60B17/02
Filed: 1933-05-31
Abstract: 408,111. Railway wheels. MICHELIN ET CIE, Clermont Ferrand, Puy de Dome, France. May 31, 1933, No. 15758. Convention date, July 27, 1932. [Class 144 (i).] The guide-flange of a railway wheel comprises an outer ring 1 of mushroom section with its web 2 spaced from the wheel-body 4 and an attachment-ring (or series of clamps) 5 by a cushioning- body 3 formed of rubber, leather, or like anti-vibration material. The web 2, and the co-operating parts of the wheel and ring &c. 5, may be of angle-section.
Patent GB-705198-A (GB)
Title: -a-(mononitro-monocyclic-aryl)--a-halo-ethyl lower alkyl ethers
Filed: 1951-07-03
Abstract: The invention comprises a - (mononitromonocyclic aryl) a -halo-ethyl alkyl ethers which may be substituted by various groups in the ring, obtainable by reacting a substituted styrene compound with a halogen and lower alkyl alcohol, in which reaction, a lower alkoxy group and a halogen are simultaneously introduced into the vinyl group, followed by nitrating. Dehydrohalogenation of these products gives nitroacetophenones. In examples the following products are obtained by the first process described:- a -(chloromethyl) benzyl methyl ether; the corresponding isopropyl-, and ethyl -ethers; a -(bromomethyl) benzylmethyl ether; a -(chloromethyl) -3-methyl-, 3:5-dichloro- and 3:5-dimethyl-, ethyl ethers; and nitration of the un-nuclearsubstituted ethers and the 3-methyl, 3:5-dimethyl and 3:5-dichlorsubstituted ethers, is also described.  A similar reaction occurs by the action of a halogen and lower alkyl alcohol on styrene when already substituted by bromo-, fluoro-, methoxy-, ethoxy, trifluoromethyl-, dimethylamino-and cyano-, the nuclear substituents remaining unchanged, to give the corresponding a - mononitroaryla  -haloethylalkyl ethers containing the substituent groups, on nitration.
Patent GB-940792-A (GB)
Title: Improvements in and relating to pneumatic tyres
Inventor: DRAKEFORD GEORGE EDWARD
IPC: B60C9/09
Filed: 1959-05-08
Abstract: 940,792. Pneumatic tyres. DUNLOP RUBBER CO. Ltd. April 12, 1960 [May 8, 1959], No. 15796/59. Heading B7C. A pneumatic tyre carcase comprises at least one parallel cord ply 17, Fig. 4, which extends across the sidewalls and tread and terminates at, or short of, the base 16 of each bead, and in each bead at least one filler 18 formed by a flat annular spiral winding of parallel side by side convolutions of rubberized filamentary material such as steel wire. The carcase ply or plies may be of rubberized, radially disposed steel or textile cords, and for a passenger car tyre, the arrangement may be as shown in Fig. 4, or two additional plies such as 17 may terminate at each bead to sandwich the arrangement of Fig. 4 therebetween. Fig. 1 shows a construction for a giant tyre, two bead wire cores 3 being incorporated in each bead to provide bulk, the steel cord ply 2 being sandwiched between the bead cores, two filler strips 4 of spirally wound steel wire being disposed one on top of each bead core, and the whole bead assembly being wrapped around by a bracing strip 5 of radial steel cords which extends from a point radially outwardly of the bead on the inner surface of the tyre sidewall, either to the bead toe, or as shown, right around the bead to terminate on the outer surface of the bead. In an alternative construction, four plies such as 2 are used, and three bracing strips 5, one of which terminates at the bead toe. In a further construction comprising three bead wire cores in each bead, each surmounted by a filler such as 4, six plies such as 2 are disposed in pairs between adjacent bead cores and axially inwardly thereof respectively,the whole being wrapped around by a bracing strip.
Patent GB-1137710-A (GB)
Title: Signal limiter
IPC: H03B28/00
Filed: 1966-04-12
Abstract: 1,137,710. Limiters. INTERNATIONAL BUSINESS MACHINES CORP. 12 April, 1966 [15 April, 1965], No. 15820/66. Heading H3T. A limiter comprises an amplifier with a semiconductor shunt negative feedback circuit whose impedance changes from a high to a low value when the input signal amplitude goes above a certain level, the feedback circuit comprising two oppositely poled semi-conductor devices in series with a capacitor, the whole being shunted by a resistor. Fig. 1 shows three such limiting stages in cascade, each stage having collector-base negative feedback through oppositely poled diodes 356, 357 operating on negative and positive going portions respectively of an input signal applied at 345. The diodes are preferably of the silicon type having a threshold above which their impedance falls. Negative noise peaks on the top of a positive-going signal will be substantially eliminated by the three stages (Fig. 3, not shown). The gain may be increased by using two amplifying transistors in each stage. The diodes may be replaced (Fig. 4, not shown) by the base-emitter paths of two saturated transistors of opposite conductivity types (see Specification, 1,054,908), or by two Zener diodes in series (Fig. 5, not shown). If an asymmetric output signal is acceptable only one Zener diode need be used, the non-limiting region lying between the forward and reverse breakdown points. The invention may be used in the frequency-shift data transmission system of Specification 1,137,705.
Patent GB-437461-A (GB)
Title: Improvements in means for treating flowing supplies of liquid with treating reagents
IPC: C02F1/68
Filed: 1934-05-28
Abstract: 437,461. Mixing liquids in flow. GRIFFIN, F. C., 3, Charnock Place, Calcutta, India. May 28, 1934, No. 15824. [Class 86] An apparatus for chlorinating or otherwise treating liquid in flow comprises a chamber to which the liquid and treating reagent are fed and a further chamber into which they are led without eddies a float being provided therein which controls the rate of discharge by a needle valve and is connected to means for controlling the supply of the reagent by varying the elevation of a pivoted discharge pipe. The liquid is supplied by a pipe 21, together with reagent from a pipe 3, to a chamber 22 in communication by passages 23 with a chamber 24. Twin floats 25, which may be protected against eddies by wings 33, are guided by a central stem 34 passing through a fixed crossmember 36 and having at its lower end a needle valve which controls the discharge from the chamber 24. The reagent is supplied from a vessel, in which a constant level is maintained by a bird fountain, by a pivoted discharge pipe 3 the height of which is controlled by means of a cord passing over pullies and connected with the stem 34.
Patent GB-1124632-A (GB)
Title: Cable supported conveyor belt
Inventor: THOMPSON CHARLES
IPC: B65G17/02
Filed: 1965-04-13
Abstract: 1,124,632. Endless belt conveyers. SOLAR THOMSON ENGINEERING CO. Ltd. 7 April, 1966 [13 April, 1965], No. 15859/65. Heading B8A. A conveyer of a type driven and supported by pulley supported cables comprises a belt 10 reinforced by a plurality of transverse metal strips 11 which project beyond the sides of the belt 10 and carry cable-engaging means 17, separate from the belt and which abut the sides of the belt and form a substantially continuous outer edge. The cable-engaging means 17 comprises two pairs of ribs 18, each pair extending in opposite directions and may be aligned opposite each other, as shown, or laterally displaced (Fig. 6, not shown) to allow interengagement between the ribs and thus a smaller diameter when the conveyer is stored on a drum (16). In a further embodiment (Fig. 8, not shown), the cable-engaging means adjacent the edge of the belt has only one pair of ribs (18) and a further pair of ribs (19) are spaced inwardly of the first pair and are formed integral with the belt. The separate cableengaging means 17 may comprise one for each projecting strip, or each pair of projecting strips, or one continuous means for each side of the belt. The belt may be made from a flame resistant material of relatively low elasticity, e.g. polyvinyl chloride and the cableengaging means from a flame resistant material of higher elasticity, e.g. neoprene, to accommodate the curvature around the end pulleys. In a modification of Fig. 7 (not shown), the projecting ends of the strips 11 may be cranked upwards.
Patent GB-494359-A (GB)
Title: Improvements in or relating to automatic or semi-automatic pilots for aircraft
IPC: G05D1/00
Filed: 1937-06-08
Abstract: 494,359. Fluid - pressure servomotor - control systems ; gyroscopic apparatus. SPERRY GYROSCOPE CO., Inc. June 8, 1937, No. 15860. Convention date, June 12, 1936. Addition to 418,499, [Group XXXIII]. [Class 135] [Also in Group XX] An improvement in or modification of the automatic pilot for aircraft described in the parent Specification, in which the relation between a gyrovertical and the craft is controlled to maintain level flight by a barometric container which can be opened to the atmosphere at will, consists in that the container is provided with a permanent restricted opening so that it is responsive to rate of change of altitude of the craft. As applied to an automatic pilot of the general type shown in Specification 416,813, [Group XXXIII], in which a gyroscopic pendulum 1 controls the fore-and-aft attitude of the craft by means of a cut-off disc 7, Fig. 8, moving with the gyroscope and associated with follow-up ports 8, 9 to control a relay valve 92 of a servomotor 90 to regulate the elevator 91, the device comprises a flexible container 50, Fig. 1, the interior of which is open to atmosphere through a long coiled capillary tube 52, which actuates an arm 54 to control ports 57, 58, Fig. 3, leading to nozzles 30, 31 of a small oppositely-bladed turbine rotor 29 which is geared to a differential mechanism 23 arranged between a follow-up pulley 6 driven from the servomotor and the ports 8, 9. The ports 57, 58 constitute air inlets to the casing 47 which is continuously evacuated and movement of the arm 54 regulates the air jets at the nozzles 30, 31 to effect an adjustment one wav or the other of the control ports 8, 9 of the elevator servomotor 90 according to the rate of change of altitude of the craft, an independent manual adjustment of the altitude is provided by means of a knob 13 which operates, through the differential 23, the control ports 8, 9. A friction clutch 38 allows this adjustment without disturbing the turbine 29 and also limits the diving or climbing angle introduced by the container 50. The position of the ports 57, 58 may also be adjusted by means of a knob 60 to provide a continuous climb or descent at a rate depending upon the amount of the adjustment. A further altitude control may be provided by manually actuated air intake valves 74, 75 for controlling the turbine 29. The gyroscopic base line may be used as an artificial horizon, in the manner disclosed in Specifications 461,813 and 473,688, [Group XX], for an indicator in the form of a miniature aeroplane 95, Fig. 9, connected to the gyroscope to show directly the pitch and bank indications at 100 and 99 respectively. Follow-up movements of servomotors controlling the pitching and banking are also shown by indices 104 and 101 connected to follow-up members. The index 104, being also under control of the container 50, will also show whether the craft is ascending or descending, even though the craft is in the correct horizontal attitude.
Patent GB-919402-A (GB)
Title: Metallurgical lances
IPC: C21C5/46
Filed: 1961-05-03
Abstract: 919,402. Lances; feeding granular material. ARBED, ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE S.A. May 3, 1961 [May 18, 1960], No. 15995/61. Classes 51 (1) and 51 (2). A metallurgical lance has a nozzle mounted in the end of a central tube, which end is surrounded by a spaced apart cooling jacket. As shown, the end tube 4 is screwed into a portion 3 of the central tube 1, and has its lower part 7 fitted down against the horizontal shoulder 10 of the cooling jacket 9. The nozzle 13 is of abrasive material, and has a tapered lower portion 12 fitted into the inside tapered surface of the lower part 7 of tube 4, and is set into tube 4 at its top edge 11. Between the nozzle 13 and tube 4 is an air space 18 which may be filled with sand or cement 19, and between tube 4 and the cooling jacket is an air space 15 which may convey gases down to a passage 17 in the nozzle. Another embodiment has the lower exterior portion of tube 4 following the line of the upper portion, there being only a small gap between this portion of tube 4 and the cooling jacket. In this embodiment and the following ones there are no connecting passages 17. Another embodiment has an outwardly tapering end to tube 4 to form a close fit with the lower end of the cooling jacket, and in the final embodiment the lower end of the nozzle 13 is formed horizontally across at the level of the bottom of tube 4.
Patent GB-612550-A (GB)
Title: Improvements in lathe headstocks
IPC: B23Q1/26
Filed: 1946-05-27
Abstract: 612,550. Turning. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. May 27, 1946, No. 16010. Convention date, March 18, 1942. [Class 83 (iii)] A loose headstock of a lathe is provided with an eccentrically journalled roller for clamping the headstock to the lathe-bed, the roller being located between two slide faces in the bed; in one position the roller engages one slide face and clamps the stock, and in the other position engages the opposing face and lifts the headstock from the bed. As shown, four rollers 12 on eccentric pins 13 support the headstock 17 on slides 24 and are moved by levers 22 tu engage slides 23, thus clamping the headstock against the bed faces 19, 21.
Patent GB-363284-A (GB)
Title: Process for improving fibres of cellulose esters
IPC: D01F2/28
Filed: 1931-06-02
Abstract: Threads composed of fibres of organic esters of undegrated cellulose obtained by the esterification of natural cellulosic fibres or of artificial fibres of undegraded cellulose, are reduced in denier and improved as regards their strength, feel, &c. by subjection to a stretching operation in the presence of a swelling agent.  Suitable swelling agents are dilute acetic and formic acids, pyridine, and aqueous solutions of ammonium sulphocyanide.  In examples, cellulose artificial silk which has been butyrylated or acetylated according to the process of Specification 353,978, is treated in aqueous formic or acetic acid or aqueous pyridine, and then stretched; alternatively, the stretching may follow directly on the acetylation while the material still contains acetic acid.  The process is also applicable to the treatment of fibres obtained by esterifying fibres of cellulose xanthate or cellulose xanthic acid referred to in Specification 349,322.
Patent GB-318659-A (GB)
Title: Improvements in or relating to steering mechanism for mechanically driven vehicles
IPC: B62D3/02
Filed: 1928-06-06
Abstract: 318,659. Yare, J., and Yare, L. June 6, 1928. Non-reactive steering-mechanism; deflectable axle-ends and intermediate connections therefor. -Two short shafts E are-mounted on the axle and connected by chain gear D, these shafts being connected by other chains to two shafts close to the stub axles, each of the last-mentioned shafts carrying a worm B gearing with a sector A on the respective stub axle H. One of the shafts E is the steering-shaft. It is also stated that differential turning of the stub axles may be obtained by mounting the chain wheels F eccentrically. The sectors A are made about 200‹ as shown to give a wide steering lock. in order to take up wear and avoid backlash in the worm gearing the sectors are each provided with a spring-pressed section or layer.
Patent GB-722597-A (GB)
Title: Improvements in or relating to the bleaching of coconut fibres
Inventor: BULDER JOHANNES MARGARETHUS
IPC: D06M11/52
Filed: 1953-06-15
Abstract: Coconut fibres, immediately after separation from the pitch or coir dust, are bleached with an aqueous solution of a hydrosulphite, which may be sodium hydrosulphite and may be at a temperature of 70 DEG  to 90 DEG  C.  A further bleach in an aqueous solution of chlorous acid at 70-80 DEG  C. may be given.