baber/WOPTO huggingface dataset:
Patent GB-949128-A (GB)
Title: Improvements in and relating to transistorized switching circuits
IPC: H03K17/64
Filed: 1962-02-08
Abstract: 949,128. Transistor switching circuits. BROWN, BOVERI & CO. Ltd. Feb. 8, 1962 [Feb. 10, 1961], No. 4828/62. Heading H3T. A transistor 1 is normally rendered non- conducting by connecting it through a rectifier circuit 3 to the output of an oscillator 4 and may be rendered conducting by applying a signal to a transistor 9 so as to apply to the transistor 1 a forward bias obtained via a rectifier system 8 from the oscillator.
Patent GB-451867-A (GB)
Title: Improvements in and relating to agricultural and other tractors
IPC: B62D49/06
Filed: 1935-02-15
Abstract: 451,867. Tractors. McHARDY, D. N., 61, Doveridge Road, Hall Green, Birmingham, and DUMBELL, P. B., The Chalet, Tettonliall, Staffordshire. Feb. 15, 1935, No. 4864. [Classes 79 (i), 79 (ii), 79 (iv), and 79 (v)] [See also Group XXXII] Means for varying the wheel track or gauge of a tractor comprise a land or road wheel carried between inner and outer supports so that the wheel axle is supported at both ends, and means for adjusting the wheel laterally between the supports. In the construction shown a tractor is mounted on two front laterallvadjustable driving wheels 3, Fig. 1, and a single rear steering wheel 48, Fig. 4, steering being assisted by braking either front wheel separately. Alternatively, instead of a single rear steering wheel two rear wheels may be provided mounted either on stub axles or on a centrally - pivoted axle for steering. Each front wheel 3 is slidable on a splined sleeve 9, Fig. 2, which is rotatable on an axle 6 held in bearing or supports 8, 41 secured to members 39, 37 of a chassis frame member. The wheel 3 is adjustable along the sleeve 9 by means of a screw or screws 11 screwed into the wheel hub 10 and rotatable in but prevented from axial movement in members 14, 15 secured to the sleeve 9. The front wheels are driven from the engine 1 through change-speed gearing 4, and three trains of reducing gearing comprising (1) spur gears 20, 22, 27, the middle gear being an idler wheel, (2) bevel gearing 28, 36, with differential gear 33 and shafts 34, Fig. 5, and (3) spur gearing 40, 16, Fig. 1. A power pulley 29 is provided on the shaft 24 of the first gear 20 which gear may be declutched from the shaft if desired. A second power take-off is provided from the idler wheel 22, which may drive implement lifting gear through a shaft 32, and a third power take-off may be provided by a rearward extension of the shaft 26 of the spur gear 27. The chassis frame comprises closely-spaced longitudinal members 7, and outer side members 39 which are upswept at the front similarly to the members 7 and are connected together in front of the engine and behind the wheels 3 by transverse members 62, Fig. 5, also connected to the members 7. Thus each wheel 3 is enclosed in a rectangular sub-frame. The main members 7 aro braced and connected together by the gear casings 4, 31, 37. The rear steering wheel 48, Fig. 4 is mounted in a fork 50 which is rotated in a column 53 by a hand wheel 54 and reducing gearing 55. The column 53 is secured to a block 57 adjustable laterally along two bars 56 fixed to the vehicle frame. If two rear wheels are provided both may be adjustable laterally. An implement 60, 61 may be attached by means of draw-bars 58, Fig. 1.
Patent GB-112557-A (GB)
Title: Improvements in Junctions or Switches or Runways, Monorails, Telphers and like Constructions and in the Operating Gear thereof.
IPC: B61L23/00
Filed: 1917-04-10
Abstract: 112,557. Morris, Ltd., H., and Davies, B. T. April 10, 1917. Elevated railways and tramways.-Overhead runways &c. having the track of girder form are arranged a t points with the main and branch tracks L, C, Fig. 1, terminating in bevelled pieces E, F, shaped to form slots K, L with the end D of the main track A. Arms I, J, pivoted to the lower ends of vertical shafts G, H, are of such a length and shape that one or other closes its slot whilst the other is sufficiently open to allow a trolly to pass. The upper ends of the shafts G, H are provided with arms M, N slotted at their free ends to engage with pins or rollers O, P on a disk Q. The disk Q may be partially rotated by rope or other means and, as shown in Fig. 5, is connected by a link X with an arm Y on a shaft W operated by a rope &c. through lever V. The shaft W also carries a loose arm a provided with a one-way clutch-tooth so as to act as a resetting lever when a trolly passes from branch C to main A. The link J on shaft H has an extension Z which is operated by the trolly to reset the points when a trolly has passed from main A to branch C. In a further modification, the link operating the disk Q has an oblique slot and terminates in a tripping-device which engages with a side stop on the trolly. A link, carrying a pin which rides in the oblique slot, has a tooth with which a locking-stop can engage for determining in which position the points are to be set or reset, the said locking-stop being operated by electrical or other means.
Patent GB-766213-A (GB)
Title: Improvements in or relating to structural members of reinforced concrete
IPC: E04B5/06
Filed: 1955-02-18
Abstract: 766,213. Concrete beams. BRAUNBOCK, E. Feb. 18,. 1955 [Feb. 22, 1954], No. 4993/55. Class 20(4) A concrete beam or like support member is of trough-shape and has ring-shaped or helical transverse reinforcements which extend across the top of the trough in, or substantially in, the plane containing the top of the trough. In Fig. 3, the beam 1 has a part-circular sectioned cavity in the walls of which a helical reinforcement 3 is embedded or partly embedded. The shoulders 5, which are provided to support filler-blocks or temporary shuttering 10, Fig. 10, in floor and like constructions, may be omitted, and the trough may be of trapezium section, the trough being wider at the bottom than at the top. The reinforcement 3 is correspondingly rectilinear and is flush with the top of the trough. The bottom of the beam 1, and if desired the sides, may be faced with light concrete, fibre boards, or ceramic material. The reinforcements 8 for tying in situ concrete 7 to the beams 1 are inserted into the troughs just before the in situ concrete is applied. The reinforcement 3 may be wound on a mandrel of the section required for the cavity, the mandrel remaining in the mould until the concrete has set. Prestressed longitudinal reinforcements may be provided in the beam.
Patent GB-137662-A (GB)
Title: Improvements in or relating to drop-down guns and rifles
IPC: F41A19/41
Filed: 1919-02-28
Abstract: 137,662. White, J., end Payne, H. H. Feb. 28, 1919. Breech actions, drop-down barrel.-Consists in employing a longitudinally sliding hammer the actuating-spring of which is adapted to be stressed during the closing movement, of the gun. The hammer is preferably adapted to be retracted into the cocked position when the gun is opened. In the form shown in Fig. 2, the sliding hammer b is connected by a rod o to a plug p working in a cylinder d slidable in a boring in the body g and enclosing the firing-spring e. The forward end of the cylinder is closed by a plug q pressed rearwardly by a cocking-spring f, and having a cam-face k against which the nose j of a lever i pivoted to the body is adapted to work. The cylinder d is slotted to permit the passage of the nose j. The sear c is pivoted to the body below the hammer and is urged into bent by a coiled spring l. In the position shown, both springs e, f are compressed, and the gun is ready for firing. On pulling the trigger, the spring e drives forward the hammer b and fires the cartridge. On opening the barrel, the spring f urges the lever i upwards and the cylinder d rearwards, thereby retracting the hammer until the sear springs into bent. On closing the gun, the barrel forces the lever i downwards, and, through the cam k, retracts the cylinder d and compresses both springs e, f.
Patent GB-848086-A (GB)
Title: Improvements in transistor electrical pulse generators
Inventor: BEAUFOY RAYMOND
IPC: H03K3/30
Filed: 1957-02-15
Abstract: 848,086. Transistor blocking oscillator circuits. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Feb. 14, 1958 [Feb. 15, 1957], No. 5180/57. Class 40(6). A transistor blocking oscillator is provided with an additional feed-back circuit which prevents the transistor from bottoming heavily. The Figure shows a transistor blocking oscillator with a conventional transformer TR coupling the collector circuit to the base. In operation, a steady voltage is built-up across capacitor Cl and during the part of the cycle in which the collector current is cutting off the collector voltage swings to the negative supply voltage at which it is clamped by a rectifier MR1. A capacitor C3 accordingly charges through rectifier MR3 towards the voltage across capacitor Cl. When the transistor again becomes conductive the collector potential starts decreasing carrying with it the potential at the upper electrode of a capacitor C3. Before the collector bottoms the potential at this latter point becomes less negative than the potential at the base and rectifier MR2 starts conducting preventing heavy bottoming and an excess amount of hole storage occuring in the base. Output pulses may be derived from terminals ON and OP. Variation in the width of the output pulses may be effected by varying the voltage across capacitor Cl and variation in the frequency of the pulses may be effected by varying the potential applied to resistor R2.
Patent GB-1100440-A (GB)
Title: Electronic device
IPC: G01P3/48
Filed: 1966-02-07
Abstract: 1,100,440. Electric selective signalling; speedometers. MOTOROLA Inc. 7 Feb., 1966 [5 March, 1965], No. 5316/66. Headings G4D and G4H. [Also in Division G1] A vaned wheel 18 attached to the brake drum of a vehicle co-operates with a permanent magnet 15 to open and close a read switch 10. Each time the switch opens a +ve pulse is fed via rectifier 37 to charge a condenser 38. The repetition rate is indicated by a milliameter 40 calibrated as a speedometer. Closing the switch 10 feed ave pulse to the base of transistor 35 which conducts to feed a capacitor 50 forming with a unijunction transistor 52 a relaxation oscillator. The output from 52 is amplified at 68, 70 to advance an electromagnetically-operated odometer 96.
Patent GB-787791-A (GB)
Title: Tetracycline
IPC: C07C233/00
Filed: 1956-02-22
Abstract: Tetracycline is prepared by treating bromtetracycline in an inert organic solvent with hydrogen in the presence of a catalyst consisting of palladium or platinum or mixtures thereof. Tetracycline hydrobromide is produced and may be recovered after filtering off the catalyst by evaporating the reaction solution to dryness or by adding a non-solvent to precipitate the tetracycline hydrobromide.  If tetracycline base is desired, or if the hydrochloride or hydrobromide of bromtetracycline is the substance hydrogenated, the reaction is carried out in the presence of a tertiary amine base such as triethylamine or trimethylamine.  Specified solvents are aliphatic alcohols such as methanol and ethanol containing not more than eight carbon atoms, dioxane, methoxyethanol, ethoxyethanol or mixtures thereof. The reaction is carried out at 10 DEG  to 50 DEG  C. and preferably 25 DEG  to 35 DEG  C. and at pressures of slightly above atmospheric or of 3 to 5 atmospheres.
Patent GB-1294681-A (GB)
Title: Novel bis-thiachromonyl compounds their preparation and use
Inventor: KING J
IPC: A61K31/38
Filed: 1969-02-01
Abstract: 1294681 Anti-allergic &c medicines FISONS PHARMACEUTICALS Ltd 22 Jan 1970 [1 Feb 1969] 5570/69 Heading A5B [Also in Division C2] Pharmaceutical compositions useful for treatment of allergic asthma, hay fever, urticaria and auto-immune diseases comprise bisthiachromone carboxylic acid compounds of the formula (I): in which P, Q, R, P<SP>1</SP>, Q<SP>1</SP>, and R<SP>1</SP>, which may be the same or different, each denote H, alkyl, hydroxyalkyl, alkoxyalkyl, alkoxy, hydroxyalkoxy, alkoxyalkoxy or carboxylalkoxy, alkenyl or alkenyloxy, amino, mono- or dialkylamino, acylamino, aminoalkoxy, dialkylaminoalkoxy, acyl, hydroxy, or halogen; X denotes -O-X<SP>1</SP>-O- or -X<SP>1</SP>- in which X<SP>1</SP> represents a saturated or unsaturated straight or branched hydrocarbon chain, optionally substituted by one or more halogen atoms, carbonyl oxygen atoms, hydroxy or alkoxy groups and optionally interrupted by a carbocyclic or heterocyclic ring, or an oxygen atom, or pharmaceutically acceptable derivatives thereof, as active ingredients, in combination with a pharmaceutically acceptable diluent or carrier, and optionally a bronchodilator such as isoprenaline, adrenaline, orciprenaline, isoetharine and derivatives thereof (especially isoprenaline sulphate). The compositions may be in forms suitable for administration orally, parenterally, by inhalation (including use of nebuliser or aerosol dispenser), or topically.
Patent GB-230102-A (GB)
Title: Improvements in and relating to the generation and superheating of steam
IPC: F22B21/34
Filed: 1924-01-12
Abstract: 230,102. Bell, J. E. Jan. 13, 1923, [Convention date]. Straight-tube superheaters.-A boiler furnace of the kind described in Specification 209,764 has a combustion chamber provided with a depending baffle incorporating water or steam superheating tubes of the boiler and adapted to guide the flames through an elongated U-shape path. The boiler comprises a steam-and-water drum D, Fig. 1, connected by tubes D' to headers D<2> and D<3>. These are connected by vertical tubes D<4>, D<40> , D<14> to lower drums D<5>, D<6> and headers D<60>. The lower drums D<5>, D<6> are also connected to a drum D<9> by tubes D<7>, D<8>, forming a cooling-screen for ashes &c. passing downwards into the ash-pits A<9>. Depending from the drum D is a hollow baffle formed by the drum D<11>, bent tubes D<10>, straight tubes D<13>, and tiling E provided with apertures E<1> for the admission of air to the combustion chamber A. The drum D" communicates with the drum D<9> by external pipes D<15>. Steam-superheated units K are incorporated in the side walls of the combustion chamber. A modification of the hollow baffle depending from the drum D, Fig. 9, is formed as a steam-superheater comprising two sets of tubes K<10> connected at their lower end to an outlet header K<11> and at their upper ends to headers K<12> supplied with steam from the drum D through connections K<13>. The superheater tubes are encased in cast iron sections K<14> arranged between bricks K<15>, the enlarged heads of which abut against angle bars K<16>. Tiles K<17> protect the header K<11> and lower parts of the tubes.
Patent GB-508599-A (GB)
Title: Improvements in apparatus for the utilisation of the flow of water in a conduit
IPC: G05D7/00
Filed: 1938-02-23
Abstract: 508,599. Electric control systems. CANDY, F. P. Feb. 23, 1938, No. 5642. [Class 40 (i)] In a system for controlling the speed of a pump in accordance with the flow of liquid in a conduit, the liquid operates a rotary current interrupter b which alternately controls the valve-operating solenoids m, l, of a hydraulic servomotor o through the intermediary of electromagnetic switches f, i; e, h. The inlet pipe n<1> of the servomotor is connected to the pipe a on the up-stream side of the interrupter b and the reciprocatory operation of the valves n drives the servomotor and the associated pump p. The system may be employed for indicating liquid flow or for adding chemical reagents to the liquid. In the latter case, the reagent is supplied through the inlet pipe p<1> and delivered to the down-stream side of the conduit a by the pipe p<2>.
Patent GB-688236-A (GB)
Title: Improvements in stencil printing apparatus
IPC: B41F15/42
Filed: 1948-02-04
Abstract: 688,236. Stencilling-apparatus. ROTO-MATIC SCREEN PRINTER, Ltd. Feb. 4, 1948 [Feb. 5, 1947], No. 5765/51. Divided out of 688,194. Drawings to Specification. Class 100(ii) The subject-matter of this Specification is identical with part of that described in Specification 688,194, but the claims are directed to means for raising and lowering the scraper at the front and back of the machine and means for mounting the scraper for limited vertical and pivotal movement. Specifications 688,237 and 688,238 also are referred to.
Patent GB-1390111-A (GB)
Title: Pulverulent coating composition
IPC: C08G18/80
Filed: 1972-02-08
Abstract: 1390111 Pulverulent coating compositions VEBA-CHEMIE AG 8 Feb 1972 [8 Feb 1971] 5826/72 Heading C3R Pulverulent coating compositions for powder layering comprise 3-isocyanato-3,5,5-trimethylcyclohexyl isocyanate or a mixture thereof with at least one other cycloaliphatic polyisocyanate blocked with #-caprolactam and one or more hydroxyl-containing polyesters derived from acids of which more than 50% by weight are aromatic polycarboxylic acids which polyesters are solid below 40‹ C., free-running and form low-viscosity melts at .150 to 180‹ C., the granulometry of the composition being less than 0À25 mm. The polyisocyanate, before blocking, may be used as it is or as a reaction product with a polyol. Running and gloss improvers may be added to the compositions, as may heat stabilizers, antioxidants and pigments. The compositions, after coating, are heated to a temperature above the cracking temperature of the blocked polyisocyanate, but below 280‹ C., to bring about a curing thereof.
Patent GB-557081-A (GB)
Title: Lubricating devices for sewing machines
IPC: D05B71/00
Filed: 1942-04-30
Abstract: 557,081. Sewing machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). April 30. 1942, No. 5841. [Class 112] [Also in Group XXXVI] A sewing-machine frame includes a hollow bracket-arm standard 11 with lubricant reservoir and feed-inspection cavities 58, 59, the latter having a window 77, the cavities being connectec by a conduit 64 provided with a control valve 67. Cavity 58 has an apertured flanged disc 7: forming a guage-plate, the window 77 extending beyond this disc, whilst cavity 59 has a liner 75<SP>1</SP> coated white. Valve 67 is actuated by a hand-lever 6S engaging the bushing 68, a spring 70 embracing the valve rod. The lubricant is conveyed by a duct 86 to a rotary loop-taker forming the subject-matter of Specification 557,094. Specification 557,096 also is referred to. '
Patent GB-570843-A (GB)
Title: Hydrogenation of benzene to cyclohexane
IPC: B01J25/02
Filed: 1943-04-12
Abstract: 570,843. Catalytic hydrogenation. IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 12, 1943, No. 5857. Convention date, April 11, 1942. [Class 1 (i)] A nickel aluminium alloy hydrogenation catalyst is activated by the removal of a portion (e.g., 25 per cent.) of the aluminium content, and when the calayst has lost its activity in use this is restored by the removal of a further portion of the aluminium. The extraction is preferably effected in the reaction vessel by passing dilute caustic soda through the catalyst. The invention is particularly applicable to the conversion of benzene to cyclohexane.
Patent GB-549875-A (GB)
Title: Improvements in or relating to collecting mechanism for cigarettes, filter wads and other rod shaped articles
IPC: A24C5/354
Filed: 1941-05-08
Abstract: 549,875. Filling containers with cigarettes &c. MOLINS, D. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. May 8, 1941, No. 5996. [Class 78 (i)] Relates to machines for transferring rod-shaped articles, e.g. cigarettes, to suitable receptacles and arranging them in an orderly manner therein. Fig. 1 shows an embodiment of the invention wherein cigarettes 1 are delivered from a making machine by an endless-belt conveyer 2 the upper traverse of which is located between walls 3 moving in and out to align the cigarettes transversely to the conveyer belt. The cigarettes descend the slope between the conveyer rollers 4 and 5, and are pressed-upon during this descent by a flexible apron 11 fitted with a stiffener 16 on which bears a pivoted presser 14. Beyond the roller 5 the cigarettes pass over a platform 7 to reach a wheel 9 having paddles 10 which push the cigarettes forward to accumulate under an extension of the apron 11. On this extension bear a flexible strip 17 weighted at 19, a pivoted control plate 37, and a pivoted levelling element 42 fitted with an adjustable biasing weight and engaging an adjustable stop 45. The paddle wheel 9 is driven from the cigarette machine through a slipping clutch, and when the stream of cigarettes under the apron 11 gets too shallow, the wheel 9 is stopped by a pawl which is allowed to fall into engaging position with a ratchet fixed to the wheel 9, by the falling of the presser 14. The receptacles R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> into which the cigarettes are piled slide on an upwardly inclined platform 51 having front extensions 132, 134, and are moved forward intermittently by a pair of parallel endless chains 21 furnished with pivoted catches 122, 123 which engage front and rear bottom ends of the receptacles. The chains 21 are driven through a friction ball ratchet on the shaft 54 of sprocket wheels 50, the rocking of the ball casing being effected by a slotted rod engaged by a lever oscillated by a crank-pin. The stroke of the slotted rod can be varied by the location of a knife edge 98 on a serrated incline 97 attached to the rod, the knife edge in turn being adjusted, with a lost initial motion, by a wire 41 connecting it with the plate 37. The cigarettes ride down a starting box 129 on to a guide 20 having a telescopic lower extension 106 terminating in a flexible flap 121. When one receptacle is filled the extension 106 is withdrawn to enable the guide 20 to pass by way of a slot into the next advancing receptacle, this being automatically effected by a cable 107 pulled by a lever 112 tripped by one of a series of blocks 116 on the chains 21. The receptacles may be advanced by a handwheel on the shaft 54. A lamp &c. is lit when a receptacle is full. Specifications 549,877, 549,878, [Group XXIV], and 549,879 are referred to.
Patent GB-549218-A (GB)
Title: Lubricated hook for sewing machine
IPC: D05B57/14
Filed: 1941-05-09
Abstract: 549,218. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). May 9, 1941, No. 6032. [Class 112] In a rotary-hook lock-stitch sewing machine one of the oil ducts 22 leading from the central oil cavity 16 in the hook shaft to the hook raceway 25 terminates in a cavity 30 in the hook body which has a port opening on to the raceway. The cavity 30 is filled with wick material which is pressed into the port and retained in place by a cover-plate 28. A groove 32 in the hook body underneath the cover plate conveys oil from the cavity 39 and delivers it to the raceway through ports 33.