baber/WOPTO huggingface dataset:
Patent GB-476420-A (GB)
Title: Improvements in high pressure metal vapour electric discharge lamps
IPC: H01J61/30
Filed: 1937-07-27
Abstract: 476,420. Discharge lamps. BRITISH THOMSON - HOUSTON CO., Ltd., and GENERAL ELECTRIC CO., Ltd. July 27, 1937, No. 20744. Convention date, Dec. 1, 1936. [Class 39 (i)] The narrow thick-walled envelope of a highpressure metal-vapour discharge lamp has a bore which is greatest in some plane between the ends of the discharge path and tapers thence towards each end. The pressure is greater than 10, and may reach 50, atmospheres. In the form shown in Fig. 1, adapted for operation with the discharge ends in the same horizontal plane, the upper side 2 of the quartz envelope is bulged, while the bottom side 1 is straight, the transverse cross-section being oval with its vertical diameter greatest in the middle. The ends of the tube carrying the electrodes are inclined downwardly and contain globules of mercury. In a vertical discharge lamp, the cross-section may be circular and greatest in the middle, or, as shown in Fig. 3, at a point above the middle, of the discharge. Specification 449,862 is referred to.
Patent GB-1091188-A (GB)
Title: Solvent-rubber systems of low viscosity
IPC: C09J123/22
Filed: 1965-05-17
Abstract: A solvent rubber system comprises an isoparaffinic solvent and at least two co-milled rubbers wherein at least one rubber is soluble in said isoparaffinic solvent and wherein a second rubber is insoluble in said isoparaffinic solvent.  Soluble rubbers are natural rubber, polyisoprene, butyl rubber, polyisobutylene and E.P.M. rubber. Insoluble rubbers are S.B.R., nitrile rubber, neoprene and polybutadiene.
Patent GB-1451278-A (GB)
Title: Pesticidal phenoxyphenyl phosphates and thiophosphates
IPC: C07F9/12
Filed: 1974-05-10
Abstract: 1451278 Phenoxyphenyl phosphates and thiophosphates CIBA-GEIGY AG 10 May 1974 [11 May 1973 20 March 1974] 20845/74 Heading C2P The invention comprises compounds of formula  (wherein R 1  is C 1-7  alkyl; R 2  is Me or Et; each R 3  and R 4  is independently H, halo or nitro; and X and Y are each O and S); and their preparation by reacting either (a) an appropriate phenoxyphenol or alkali metal, ammonium or trialkylammonium salt thereof with or (b) an appropriate methyl or ethyl phenoxyphenyl phosphorochloridate or phosphorochloridothioate with R 1 YH or R 1 YM where M is alkali metal, ammonium or trialkylammonium; in either process an acid acceptor being used where appropriate. Pesticidal compositions comprise a compound I and a carrier.
Patent GB-310239-A (GB)
Title: Improvements in means for automatically controlling the supply of gas to gas stoves
IPC: F24C3/12
Filed: 1928-07-18
Abstract: 310,239. Kurth, H., and Kauffmann, K. July 18, 1928. No Patent granted (Sealing fee not paid). Valves actuated indirectly.-In a gas stove having a pivotally mounted burner head 1 adapted to maintain the gas valve 6 open under the weight of a cooking-vessel 2 and to close it on loss of weight due to evaporation, the spring 9 supporting the free end of the burner head is carried on the long arm 11 of a bell-crank lever, the short arm 12 of which abuts against an adjusting screw 13: so that the spring 9 can be tensioned for vesselsof different weights.
Patent GB-1270682-A (GB)
Title: Improvements in or relating to intruder alarm systems
IPC: G08B29/14
Filed: 1969-04-24
Abstract: 1,270,682. Intruder alarms. AMERICAN DISTRICT TELEGRAPH CO. 24 April, 1969 [29 April, 1968], No. 20990/69. Headings G4H and G4N. An intruder alarm comprises a sensor 10 located in protected premises connected by a line 12 to a central station containing a switch 20 having a normal position N and a test position T; in the normal position N, signalling circuit 30 in the protected premises is powered by a D.C. source 14 and may be actuated by sensor 10 to operate alarm 16, 18; in the test position T, the signalling circuit 30 is powered by D.C. source 22 of the reversed polarity and produces pulses to operate indicators 26, 106 in response to a simulation of the presence of an intruder obtained in response to said reverse polarity. In the normal position N, sensor 10 which may be capacitive or ultrasonic, may energize a relay 60 to open contacts 50, turn off transistor Q3 and trigger thyristor A4, thus producing an alarm signal. Sensors 2 ... 8 comprising foil strips, wires or contacts are also provided. Relay 60 may be replaced by a transistor (Fig. 5, not shown). In the test position T with contacts 50 in sensor 10 closed relays RB, RY are energized, contacts Y1, Y2 are closed and B1 opened. The closure of contacts Y2 maintains transistors Q1, Q2 off and the closure of contacts Y1 actuate a device e.g. a fan which simulates intrusion by actuating sensor 10 to open contacts 50 and trigger thyristor A4. A pulsing action of relay RB due to the effect of a neon lamp 106 in capacitor C6 causes the neon lamps 106, 26 to flash, thus indicating correct operation. If switch 20 is set to position T with contacts 50 in sensor 10 open, transistors Q1, Q2 are turned on so as to shunt power from relays RB, RY so that neon lamps 26, 106 are not energized.
Patent GB-570002-A (GB)
Title: Improvements in or relating to the surface hardening of ferrous metal bodies
IPC: C21D1/08
Filed: 1943-12-15
Abstract: 570,002. Blowpipe burners. SHORTER PROCESS CO., Ltd., and SHORTER, A. E. Dec. 15, 1943, No. 21002. [Class 75 (i)] [Also in Group II] In a metal-hardening apparatus, Fig. 2, the nozzle 28 of a water cooled burner head 25 is provided with a threaded shank 29 extending through the top plate 30 of a metal casing 31 having a refractory mass 32 shrouding the flame emitted by the nozzle 28 and striking the surface S to be hardened. To improve the combustion, air is admitted to the combustion space 33 by ducts 34 registering with ports 30 in the plate 30. Alternatively air, oxygen or oxygenenriched air may be fed into the ducts 34 by outlets in an annular distribution chamber mounted in the plate 30. In another form, Figs. 6 and 7, in which a multi-nozzle burner is used, the burner comprises elongated head 41 having a distribution chamber 42 connected to supply pipes 43 to a header 44, the gas being distributed by orifices 45 formed in a row of nozzles 46 and delivered to a combustion chamber 47 shrouded with refractory material 48 housed in a skirt 49. An auxiliary combustion supply gas is supplied through a pipe 51 to chambers 50 and thence by ducts 52 to the chamber 47. The head 41 is provided with a cooling jacket 54 and the end plates 56 for the heads being lined with refractory blocks 57.
Patent GB-1189813-A (GB)
Title: Distributors for Internal Combustion Engines.
Inventor: SERES JOHN
IPC: F02P5/10
Filed: 1967-05-05
Abstract: 1,189,813. Rotary interrupters. J. SERES. 5 May, 1967, No. 21004/67. Heading H1N. A make-and-break commutator assembly for an internal combustion engine ignition distributer comprises a plate 6, Fig. 2, having lobes 8 interconnected by a common central portion 10 and embedded in a cylindrical insulating body having a flush surface for engagement by a pair of brushes 9, Fig. 1. The brushes 9 are bridged by the lobes 8 and are mounted on a base which is rotatably adjusted by an ignition retarding and advancing device 12, 13. A modification is referred to in which the edges of the lobes 8 are exposed on the cylindrical periphery of an insulating body for engagement by the brushes.
Patent GB-233220-A (GB)
Title: Improvements in graters
IPC: A47J43/25
Filed: 1924-09-06
Abstract: 233,220. Winstone, E. H. Sept. 6, 1924. Graters. - In a domestic grater comprising a grater sheet a and a container for the nutmeg &c. slidable thereon, two longer opposite sides of the container c are bent to form flanges e to engage the turned-over edges f of the sheet a and the rod k secured to the spring-pressed plate i is arranged centrally in the container and has a head m to prevent complete extrusion of the spring which fits closely around it. A stop h is provided at one end of the grater.
Patent GB-444474-A (GB)
Title: Radio transmission arrangement, more particularly for short or ultra-short wave purposes
IPC: H03B19/10
Filed: 1934-07-20
Abstract: 444,474. Valve generating and modulating circuits. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. July 20, 1934, No. 21208. Convention date, July 21, 1933. Addition to 435,561. [Class 40 (v)] The frequencydoubling and modulating arrangement of the parent Specification is modified by the use of two separate screengrid valves in place of the single valve, and by providing means for equalizing the amplifying effect of the respective valves. As shown, the input from a tuned circuit 4 is applied in push-pull relation to the inner grids of the valves 9, 10. Each grid is negatively biassed by a source 6 so that only positive half-cycles affect the plate current. The screening-grids are joined and are biassed through a choke 16 and resistance 18, whilst modulating potentials are applied through a condenser 17. Positive voltage is applied to the plates through chokes 36, and the output pulses from the plates are transferred through a differential condenser 32 .. 34 to a coil 21 coupled to a circuit 22 tuned to the double frequency. The pulses are equalized by adjustment of the movable plate 34 of the condenser, despite disparities in the valves or components. The differential condenser may be arranged on the input side of the valves 9, 10, and in this case the valve plates are connected directly to each other and to the coil 21. The system is particularly applicable to television transmission, and synchronizing signals are preferably negative or black and of constant peak potential as in Specification 441,761.
Patent GB-1135520-A (GB)
Title: Improvements in and relating to the production of para-formaldehyde
Inventor: SCHUMACHER ROLF
IPC: C08G2/08
Filed: 1967-05-08
Abstract: 1,135,520. Paraformaldehyde. KARL FISCHER APPARATE U ROHRLEITUNGSBAC. 8 May, 1967, No. 21214/67.HeadingC2C. In the continuous rectification of aqueous formaldehyde solutions for the preparation of paraformaldehyde as described in Specification 1,135,519 a working pressure exceeding 150 mm. of mercury is maintained in the first rectification column.
Patent GB-982248-A (GB)
Title: Production of phenol-formaldehyde condensation products
IPC: C08G8/24
Filed: 1961-06-13
Abstract: One hydroxyl equivalent of a phenol, 3,31- or 4,41-methylene bisphenol or a mixture thereof, is reacted at raised temperature in aqueous medium initially with 2.1 to 3.25 mols. formaldehyde and 0.3 to 0.6 mols. alkali metal hydroxide, the proportion of alkali metal hydroxide being 14-20 mol. per cent based on the formaldehyde, until a viscosity of at least 100 MacMichael 26d units at 70 DEG  F. is attained, additional aqueous alkali metal hydroxide is added to a total not exceeding 0.8 mol. and reaction is continued at raised temperature until the viscosity at 70 DEG  F. is 50-250 Mac-Michael units.  Still more aqueous alkali metal hydroxide is then added to a total of 1.0 to 2.0 mols. and reaction continued at raised temperature, the viscosity at 70 DEG  F. after addition of each increment not being allowed to exceed 150 MacMichael units, and finally the reaction mixture is rapidly cooled.  Up to 15% by weight of the phenol may be replaced by cresols, xylenols or polyphenyl phenols, which occur in still bottoms during purification by distillation of phenol and vanillin.  The highly reactive products may be used as adhesives for wood substitutes, paper, cardboard or cloth.  Conventional additives, e.g. fillers, soda ash, soluble silicates, ammonia, defoamers, hardeners, buffers salts, dyes, carboxy-methyl cellulose, hydroxyethyl cellulose, polyelectrolytes, polyolefins or polyesters, may be added.  The products of the invention may also be used in admixture with conventional protein adhesives.
Patent GB-1344768-A (GB)
Title: Centrifuge having a damping device
IPC: B04B9/14
Filed: 1972-05-08
Abstract: 1344768 Damping vibrations of centrifuge rotor MASCHINENFABRIK AUGSBURGNURNBERG AG 8 May 1972 [7 May 1971] 21345/72 Heading B2P [Also in Division F2] Radial deflection of a centrifuge rotor 9 is Radial deflection of a centrifuge rotor 9 is damped by magnetic interaction of a magnet 4 of a non-rotatable damping device with a magnet 7 attached to the rotor. The rotor 9 is provided with a peripheral bead 9a to allow slight flexing. The magnet 7 which is annular is mounted in a disc 8 which is attached to the rotor. The magnet 4, which is also annular and of the same polarity as the magnet 7 is arranged within a housing 1 attached to a central feed tube 3 fixedly mounted on the centrifuge casing. The faces of the magnet 4 carry annular damping elements 5 which are immersed in damping fluid 6. The magnet and damping element assembly is supported by three thin stiff wires 5a attached to the housing 1 beneath the lower damping element. An additional mass 10 is arranged on the feed tube 3 for added inertia. Instead of being damped by the oil acting on the damping elements 5, the magnet 4 may be damped by eddy currents or electromagnetically.
Patent GB-1081615-A (GB)
Title: Improvements in and relating to fasteners
Inventor: FERNBERG PAUL CARL ROGER
IPC: H02G3/06
Filed: 1963-05-28
Abstract: 1,081,615. Carrying conductors through partitions. F.T. PRODUCTS Ltd. May 26, 1964 [May 28, 1963], No. 21371/63. Heading H2E. [Also in Divisions E2 and F2] A cable (10), Fig. 8 (not shown), is fastened in an aperture in a panel (11) by a two-part grommet (12), e.g. of resilient synthetic resin, one part 14, Fig. 7, being an insert in a cavity 25, Fig. 4, in the other part 13 which has a head 15 and a deformable shank, the cavity 25 extending into the head to form a radial groove 24. A right-angled passage is left between the parts 13, 14 for the cable. The shank is of U- section, comprising two side limbs 18 joined by a web 19 with a part-cylindrical outer surface 20. The insert 14 has extended ribs (27), 28 at its sides to locate in grooves 23 on the inner faces of the shank limbs 18. The edge of the panel aperture engages a groove 21 in the web 19 adjacent the circular head 15 and a groove 31 in the outer surface of the insert 14 and the grommet shank is radially compressed.
Patent GB-280659-A (GB)
Title: Improvements to welding machines
IPC: B23K11/04
Filed: 1926-08-31
Abstract: 280,659. Hadley, C. A., and Rose Street Foundry & Engineering Co., Ltd. Aug. 31, 1926. Welding.-In an electric butt-welding machine the movable work-holder is moved towards the fixed work-holder by liquid pressure which is controlled automatically by the movement of the work-holder so as to vary the speed of approach. The parts to be welded are thus moved slowly towards each other according to the burning away of the metal during the Hashing period, preferably .at a gradually accelerating speed, until they reach welding heat. whereupon the current is cut off and the parts then pressed quickly together to effect the weld. The slide a carrying the movable work-holder is connected to a ram 6 and through an adjustable rod 12 to a valve 9 which normally closes a port 24 connected by a pipe 8 with the end of a hydraulic cylinder 7. On operating a valve 14 by a lever 3, water passes from a valved pipe 2 through a pipe 5 into the box 4 of the control valve and passes through a duct 17 and pipe 8 into the cylinder 7 to push forward the ram. The duct contains a creep valve 18 which is normally slightly open. This valve is connected with the slide by an adjustable link 19 pivoted to an arm 20 so that during movement of the slide the valve 18 gradually opens. When the valve 9 uncovers the port 24 the slide is pushed rapidly forward to complete the weld. The angle through which the arm 20 is moved is varied by mounting the link 19 in different holes 22, 23 in the slide and arm. The face of the lever 20 mav contact with a cam face on the valve body to vary the rate of opening of the valve. The parts are returned by water passing through a small bore pipe 53 to the front of the cylinder when the valve 14 is opened to exhaust 51. In a modification, Fig. 3, the control valve consists of a creep valve 39 carried by a lever 40 connected by a link to the slide and having an internally threaded head 42' to engage a screwed boss so as to open the valve when the slide moves forward, or the boss may be provided with a face cam engaging a similar cam on the end of the head on a spring-returned lever. The main valve 33 is opened by a tappet 34 on a lever 35 connected by an adjustable rod to the slide. In a. further form. Fig. 6, the power is supplied to the inlet 59 of the control valve and passed through a by-pass 62 containing an adjustable valve 61 into the cylinder. The main valve 54<1> is fixed to a slide 55 having an eccentric 56 engaging a pivoted cam 57 attached by a rod 58 to. the electrode slide. Motion of the slide rotates the cam and allows the valve 54<1> to open. The initial position of the valve 54' may be set by adjusting the position of the eccentric by a worm wheel 64 and worm 65. The valve may also be operated by a hand lever 66. In all forms the electrodes may be loosely linked to the valve or cam so that part of the movement of the electrodes is at a uniform speed. Specification 190,734 is referred to.
Patent GB-286547-A (GB)
IPC: A63F3/00
Filed: 1927-08-15
Abstract: 286,547. Solod, W. P. March 25, 1927, [Convention date]. Board games.-A draughts or like board of two sections hinged at 11 is provided, each section having round its three sides a continuous channel 15 closed by end walls 16, the two channels so formed providing a storage chamber for the pieces A when the board is folded.
Patent GB-276660-A (GB)
Title: Fish plates for railway rails
IPC: E01B11/10
Filed: 1927-08-15
Abstract: 276,660. AciÚries de Haine-Saint- Pierre et Lesquin, Soc. Anon. Aug. 27, 1926, [Convention date]. Rail joints. - Rails are joined by fishplates 1, 2 extending around the rail flanges 5 and forming vertical cheeks 8, fishplate 1 resting on a shoulder 10 formed on fishplate 2 and the rails resting on a filling 7 secured between the fishplates. The cheeks 8 are concave internally to afford resiliency, and extend between adjacent sleepers. Upper and lower bolts 11, 13 complete the joint.
Patent GB-672185-A (GB)
Title: Improvements in or relating to armchairs
IPC: A47C7/64
Filed: 1950-09-01
Abstract: 672,185. Combination furniture. SHIELDS, J. T. Oct. 10, 1950. [Sept. 1, 1950] No. 21637/50. Class. 52 (iii). An armchair or settee is provided in its back with a wardrobe or cupboard 1 the door or doors of which extend over substantially the entire area of the back of the chair. Drawers 7 are provided under the seat and accessible from the wardrobe, hinged flaps 16 defining storage spaces beside the seat and carrying auxiliary pockets 18 and either lidded containers 13 or pull-out drawers in the arms. The wardrobe door carries a tie-rail 4 and a hat basket 5 with a shelf 6. A rail 3 for coat-hangers is provided. The door is locked by lugs 10 on an internal rod 8 engaging eyes 11 on the inside of the door, access being had to the rod 8 by a hinged top-flap 12. The rod 8 may be spring loaded towards the locking position.
Patent GB-203674-A (GB)
Title: Improvements in or relating to motor-winches with distant control for agricultural purposes
IPC: A01B3/68
Filed: 1923-08-27
Abstract: 203,674. Etablissements Joya. Sept. 6, 1922, [Convention date]. Steam and other power cultivation of land; single-furrow implements; draught devices.- In cable-propelled agricultural implements of the type in which the motor is operated from a distance by the pull in the winding cable, the tension in the cable is adapted to release. a brake and to operate a clutch so that the implement can be fitted with a continuouslyrunning motor. Figs. 1 and 2 show a double-drum winch for hauling a plough. A wheeled framework carries a motor A driving a countershaft B which is geared to each drum C by spur gearing controlled by clutches J. The two drums work independently and each is fitted with a set of controlling means, the apparatus being fitted up so that the drums are used to haul the plough in opposite directions. A rearward pull on either of the hauling-cables D raises it from the stack position 3 to the positions 4, 5 in succession. In the position 4 the cable has raised the corresponding arm e, e<1> and released a band brake H from the shaft B, while in the position 5 it has raised the weighted arm f, f<1> and released the band I connected to the lever K sufficiently to allow the spring L to engage the corresponding clutch J. At this stage the drum is driven to haul the plough. To stop the winding action, a lever U on the plough, controlling a bell-crank lever, can be manipulated to slacken the hauling-rope sufficiently to disengage the clutch and apply the brake. Fig. 5 shows an arm carried by the plough which telescopes vertically and horizontally and is arranged to pass over an obstacle such as a row of vines. When ploughing the last furrow prior to the obstacle, the tail rope is detached from the rear of the plough and hooked to the free end of this arm and thus is laid in position for acting as the hauling-rope when ploughing- the next furrow.
Patent GB-1478587-A (GB)
Title: Preparation of alpha-6-deoxy-5-hydroxytetracycline
IPC: C07C67/00
Filed: 1975-05-20
Abstract: 1478587 Preparation of α-6-deoxy-5-hydroxytetracycline PFIZER Inc 20 May 1975 [28 May 1974] 21672/75 Heading C2C α - 6 - Deoxy - 5 - hydroxy - tetracycline or an acid addition salt thereof is prepared by contacting 6 - deoxy - 6 - demethyl - 6 - methylene-5-hydroxy-tetracycline or an acid addition salt thereof with dicobalt octacarbonyl, triphenyl phosphine and a mineral acid in the molar ratio of tetracycline/dicobalt octacarbonyl/triphenyl phosphine/acid of 1À0/1À0-5À0/ 0À1-0À25/1À0-7À5 in a solvent for the reactants and under an inert atmosphere at 80-115 C.
Patent GB-357681-A (GB)
Title: Improvements in and connected with moulds for moulding articles of plastic material
IPC: B29C33/00
Filed: 1930-07-17
Abstract: 357,681. Surgical trusses. SOUTHERWOOD, W. D., Fernside, Bourne Street, Wilmslow, Cheshire, and BROOKS APPLIANCE CO., Ltd., 80, Chancery Lane, London. July 17, 1930, No. 21674. [Class 81 (ii).] Surgical truss padholders of the kind described in Specification 254,126, [Class 81 (ii), Medical &c. appliances], are modified by (1) bevelling the inner end of the cross slot g as shown at g<1>, Fig. 14, and (2) forming recesses at the inner end of this slot corresponding to the projecting ends of the flange 22 on the core member shown in Fig. 11. These recesses receive the ends of a lateral pin on the cross strap.