baber/WOPTO huggingface dataset:
Patent GB-1018521-A (GB)
Title: Improved fuel feed and carburation apparatus
IPC: F02M17/04
Filed: 1964-03-18
Abstract: 1,018,521. Spray carburetters. TILLOTSON MANUFACTURING CO. March 18, 1964 [March 18, 1963], No. 11459/64. Heading F1B. Fuel is supplied to a metering valve 82, Fig. 7, controlled by a suction actuated diaphragm 54, by a diaphragm pump 200 retreated on the opposite side of the mining passage and actuated by pressure pulses, the pump inlet and outlet valves being formed integral with the diaphragm 200. The choke and throttle valve spindles 32, Fig. 5, (not shown), are arranged in a plane inclined at an angle of about 10 degrees to the horizontal and bolt holes 26 for the carburetter securing bolts are arranged in a plane D-D at an angle of 20 degrees to the horizontal.
Patent GB-114875-A (GB)
IPC: C21D9/24
Abstract: 114,875. Napier, C. April 12, 1917. Tempering. - In an apparatus for tempering saw-blades, the blades are connected into a tcmporary chain by means of links y and are passed through an oven A and cooling-chamber B under tension by means of adjustable spring-pressed pairs of rolls F, D driven at different speeds and having grooved peripheries to accommodate the links y. Oil &c. is supplied by a pipe to the cooling-chamber B. The saw-blades, after passing the rolls D, are pushed on to a table P where they may be disconnected by hand; or they may be further pushed into a receptacle Q.
Patent GB-183252-A (GB)
Title: A new or improved cutting tool or reamer
IPC: B23B29/03
Filed: 1921-04-21
Abstract: 183,252. Wragg, R., Wragg, H., and Wragg, H. April 21, 1921. Reamers.-Adjustable reamers comprise a head a in the end of which are mounted cutters b, consisting of a cylindrical body ground to form a notch with a radial side terminating in a cutting-edge b<3>, and attached to the head by a tapered shank. The shanks project into a transverse hole e which receives a tool for ejecting the cutters. Graduations x on the head facilitate setting of the cutters. The cutters are thickest at the cutting-edge, and any number may be fitted to one head. Reference has been directed by the Comptroller to Specification 133,321.
Patent GB-183254-A (GB)
Title: An improved process and apparatus for vulcanising
IPC: B29C35/00
Filed: 1921-04-21
Abstract: 183,254. Zumb³hl, H. Jõggi. April 21, 1921. Vulcanizing by electricity.-A portable electric vulcanizer for vulcanizing patches on tyres or tyre covers is fitted with an automatic thermal switching-device, so that a part of the heating- element is switched off at a predetermined temperature, say 170‹ C., for the purpose of prolonged heating of the vulcanized part at a lower temperature, say 140‹ C. A heating-chamber 1, Fig. 1, adapted to receive the heating-element 3, Fig. 2, is constituted by a cover 4, carrying the automatic switch 5, and a lower part 15, which may have differently-shaped seating surfaces, and is removably secured by studs 14. The electric heater, Fig. 2, consists of two resistances in parallel, provided with contacts 7, 8, 9, of which the contact 8 is disconnected by the automatic switch 11, at a predetermined temperature, thus disconnecting one of the heating-resistances.
Patent GB-436433-A (GB)
Title: Improvements in brakes
IPC: F16D65/22
Filed: 1934-02-07
Abstract: 436,433. Brakes. BARKER, G. G., 14, High Holborn, London.-(Bendix Aviation Corporation ; 105, West Adams Street, Chicago, U.S.A.) Feb. 7, 1934, No. 11621/35. Divided out of 436,364. [Class 103 (i)] An internal brake is operated by a pair of hydraulic cylinders 30 each containing pistons of different diameters. The larger pistons 28 act on the part of the shoes 14, 16 which leave the anchor posts 18, 20 on forward braking. The shoes are also operated by floating levers 36, notched to clear the anchor posts and having upstanding thrust projections 38 between the ends of the shoes. A cable 40 connects the ends of the levers 36 and is operated at its middle by the cable from the brake pedal. In a modification the shoes anchor on adjustable screw cones by means of links having conical ends and the shoes are operated by hydraulic means only. In a further modification, automatic adjustment is provided and the cylinder is divided by a wall 106, Fig. 8, between the pistons. The liquid to each piston is fed through a passage containing a valve 310 having a loosely fitting guiding stem and past which liquid is forced and retained in the cylinder to take up slack due to wear, if wear has occurred.
Patent GB-825854-A (GB)
Title: Improvements in or relating to plastic coated fly casting line and methods of making the same
Inventor: BEEBE ROBERT LA MAR
IPC: A01K91/00
Filed: 1956-04-17
Abstract: A plastic-coated line for fly-casting comprises a cord of uniform diameter covered with an outer layer of waterproof plastic material tapering smoothly between different outer diameters. The cord may be of nylon and the coating of vinyl resin which may contain a substance from which gas is evolved on heating, giving a cellular coating which enables the line to float.
Patent GB-1324587-A (GB)
Title: Variable disc capacitors
IPC: H01G5/38
Filed: 1972-03-13
Abstract: 1324587 Variable capacitors JOHANSON MFG CORP 13 March 1972 [3 Jan 1972] 11666/72 Heading H1M A variable capacitor comprises a rotor plate 19 sandwiched between ceramic discs 12, 14 bearing registering metal coatings 17, 18 to constitute stationary electrodes, the assembly being held together on P.T.F.E. base 11 by conducting spring clamp 15 having portions 28, 29 engaging electrode 17 and spring finger 25 engaging electrode 18. As shown clamp 15 is fixed to base 11 by turned-over portions 30, 31 of portions 28, 29 passed through slots 33, 34 and a further portion 27 bent horizontal after passing through slot 32 forms the stator terminal. Preferably as shown a second spring clamp 16 has a finger 43 passing out through slot 44 to form the rotor terminal, and fingers 37, 38 have brush contacts 39, 40 bearing against central portion 20 of the rotor. The spring clamps may be beryllium-copper or silver, the rotor may be silver, the stator electrodes may be deposited silver-palladium and points of fixed electrical contact may be spot welded or soldered. In another embodiment (Figs. 4, 5, 6, not shown) each stator has two pairs of registering electrode areas substantially sectorshaped and disposed diametrically opposite each other, and the rotor plate has a complementary "butterfly" shape. Two spring clips connect together the stator electrodes of each pair. In a multiple assembly based on this arrangement (Figs. 7 to 9, not shown) the rotor-stator assemblies are stacked with the stator electrodes in register and the rotors individually adjustable. One pair of spring clips holds the stack together. In any of the embodiments the discs may have an angular instead of circular periphery (Figs. 10 to 15, not shown).
Patent GB-629104-A (GB)
Title: Improvements in or relating to electrical control systems
IPC: G05D3/14
Filed: 1942-08-19
Abstract: 629,104. Automatic electric control systems. SPERRY GYROSCOPE CO., Inc. Aug. 19, 1942, No. 11671. Convention date, Aug. 19, 1941. [Class 38 (iv)] [Also in Groups XXXVIII and XL (c)] In a position control system, a displacement signal from a controlling member is passed to an amplifier, the D.C. output of which influences the excitation of an opposed field generator supplying power to a servomotor. In the embodiment described the controlling device comprises an electromagnetic pick-off 101 having a central pole supplied with A.C. which is variably coupled, by a suitably-shaped movable member 161, with the outer limbs carrying opposed windings so that the output from the latter windings varies in magnitude and phase with the displacement of the member 161 from the central position. Such a device forms the subject of Specification 629,150. The output is brought into phase with the supply 137 by a phase-shifter 106 and applied to a transformer 105, whose secondary winding 109 feeds the opposed halves of valve 121. According to the phase of the input, one half of this valve passes current on successive half-waves of the supply and, .after smoothing by a tuned circuit 145, 147 the output appears across resistor 141, 143 as a voltage proportional to the displacement of the member 161. The changes in this output pass through condenser 165, 169 and appear as a velocity derivative across resistor 167, 171 which are each further connected through a condenser 173, 181 to give an acceleration derivative output across resistor 175, 183. To this voltage are added controllable amounts of velocity derivative, by resistors 179, 185 and of displacement voltage, by potentiometers 187, 189, and the resultant is applied to a duplex amplifying valve 177. The resultant voltage appears across a resistor 205, 207 directly coupled to duplex triode 223 but, since this is connected to the A.C. supply in the opposite sense, the voltage is made to persist during each subsequent half-wave by charging condenser 217. The final output flows through the appropriate one of the opposed field windings 237, 239 of generator 241, of which the armature is driven at constant speed, by motor 242, to give an output proportional to the excitation. This drives the servomotor 247 which may restore the element 161 by a follow-up action and position any controlled object such as a rudder 251. Specification 539,995 also is referred to.
Patent GB-1177966-A (GB)
Title: Electroluminescent Cell and Matrix therefor
Inventor: BACZEWSKI ALEXANDER
IPC: H05B33/20
Filed: 1967-03-13
Abstract: 1,177,966. Electroluminescence. GENERAL TELEPHONE & ELECTRONICS LABORATORIES Inc. 13 March, 1967 [16 March, 1966], No. 11704/67. Heading C4S. An electroluminescent matrix comprises a non-vitreous dielectric material containing a suspension of actuated ZnS, CdS, Zn Se and/or CdSe phosphor particles and a dispersion of an organic Zn salt whose ionic Zn content is 0À0001 to 0À1 gram atoms per mole of phosphor. The phosphor is actuated with Cu, Mn or Cl. The dielectric is a polyacrylate or polymethacrylate in toluene or butyl acetate solvent, P.V.C.-acetate in methyl, isobutyl ketone, cyanoethylcellulose in tetrahydrofuran, polystyrene in toluene or an epoxy resin. Zn salts are acetylacetonate, dithiocarbamate or those of a saturated fatty acid, and are added to the suspension which is then dried to form the solid matrix. An e.l. cell is formed by vapour depositing Al on one face of the matrix and placing a tin oxide layer on glass adjacent the other face.
Patent GB-215791-A (GB)
Title: Releasing mechanism for coin-controlled meters for gas, water, electricity or the like
IPC: G07F15/04
Filed: 1924-05-12
Abstract: 215,791. Mortensen, H. P. A. May 12, 1924. Gas &c., supplying by meter. - Prepayment mechanism for gas, water, electricity or like meters is mounted between two plates 1, 2, Fig. 2, and comprises a nut 26, Fig. 3, travelling on a screw 28 and adapted to engage a block 29 which slides on cross-rods 5, 6 and has an arm 31 to operate the valve lever or the like. The nut is rotated, on prepayment, by a slotted drum 25 passing through a flange on the nut and connected by gears 24, 11 to an operating handle 12. The screw 28 is rotated to close the valve &c. by the counting- mechanism of the meter. Indicators.-The amount of gas &c. prepaid but unconsumed is indicated by a pointer 30 on the sliding block 29. Coin action, mechanical-connection.- A coin M passes through a slot 14 in a pawl 13 into a slot in a drum 7 on the spindle 9 of the handle 12, and, when the handle is turned, is pressed against a curved portion 15 of the pawl to lift it and clear a lateral projection 16 from a lug 17 on the drum. Backward rotation of the drum is prevented by the nose of the pawl engaging a ratchet wheel 10. Coin-discharging mechanism.-When the drum has made a half-revolution, the coin drops out. If the coin jams, it is pushed out by a knife edge on a pin 19, which is fastened to the plate 2, projecting into a slot 18 on the drum in the path of the coin.
Patent GB-1363068-A (GB)
Title: Amino-ketone derivatives and their method of preparation
IPC: C07C205/15
Filed: 1971-07-13
Abstract: 1363068 Acylamino-ketones WELLCOME FOUNDATION Ltd 13 July 1971 [27 July 1970] 11750/74 Divided out of 1363064 Heading C2C Novel compounds of general formula (where R<SP>1</SP> is alkyl, aryl or aralkyl and Y is C 1  to C 4  alkyl, e.g. 3-benzoylamino-3-methylbutan-2- one) are made by oxidizing
Patent GB-315491-A (GB)
Title: Improvements in or relating to surgical bandages
IPC: A61L15/07
Filed: 1928-04-21
Abstract: 315,491. Spuhl, R., and Wirth, R. April 21, 1928. Drawings to Specification. Medicines for external application.-In a bandage impregnated with paraffin or a paraffin mixture for use as a splint, ichthyol or tar is introduced either into the impregnating material or into the bandaging material itself for treating slow-healing wounds.
Patent GB-789018-A (GB)
Title: Improvements in spacer members for the reinforcement in reinforced concrete structures
IPC: E04C5/20
Filed: 1955-04-25
Abstract: 789,018. Reinforced concrete. BERRY, F. W. April 23, 1956 [April 25, 1955], No. 11864/55. Class 20(4) A device for spacing the reinforcement in reinforced concrete from the shuttering or mould, comprises a concrete disc 1, with a slot 2 to receive a reinforcing rod, and grooves 4 into which is slid a retaining member 5 of spring steel with one upturned end 6 and one or more tongues 7 near the other end. When the disc 1 has been fitted over a reinforcement the member 5 is slid into the grooves 4 until the tongues 7 snap up and engage the far side of the disc, the end 6 engaging the near side. Additional tongues may be provided between the tongues 7 and end 6 to hold the member 5 against the bottom walls of the grooves 4. Specification 597,505 is referred to.
Patent GB-201243-A (GB)
Title: Improvements in or relating to vises
IPC: B25B1/10
Filed: 1922-04-28
Abstract: 201,243. Pickles, J. April 28, 1922. Grant of Patent refused. Vices.-In vices of the kind in which a halfnut is releasable from the screw to allow of rapid adjustment the threads of the screw and half-nut are undercut so that when the work is gripped, the screw and half-nut are looked against accidental release. A screw S with undercut buttress threads S<1> and a correspondingly threaded half-nut N engages the upper side of the screw or two releasable half-nuts may engage opposite sides of the screw. Reference has been directed by the Comptroller to Specification 5114/85.
Patent GB-723569-A (GB)
Title: Improvements in or relating to liquid delivery apparatus
Inventor: JUNIPER ALBERT THOMAS
IPC: B67D7/42
Filed: 1952-05-12
Abstract: 723,569. Discharging liquids by gas pressure. JUNIPER, Ltd., A. T. Aug. 12, 1953. [May 12, 1952] No. 11916/52. Class 102 (2). Apparatus for delivery measured quantities of liquid comprises a hand-operable gun 10, Figs. 1, 2, having a transparent graduated container 28 secured thereto, a spring-loaded valve 32 connected by a yoke 36 to a pivotallymounted trigger 38 and a two-way valve 43 having limbs 43b, 43c connected respectively to the liquid and air spaces of a tank containing a supply of liquid under air pressure. A vent cock 30 is fitted on the container 28. To charge the container with liquid, the valve 43 is moved to connect the limb 43b to the gun, the cock 30 opened and the trigger 38 pressed to open the valve 32 against its spring. To discharge the container, the limb 43c of the valve 43 is connected to the gun, the cock 30 closed and the trigger 38 again pressed to open the valve 32 to admit compressed air from the tank to eject the liquid in the container through the nozzle 20 which may be connected by a flexible pipe 44 to an otherwise inaccessible point where the liquid is required,.e.g., an aircraft tank.
Patent GB-1430196-A (GB)
Title: Rotary fluid pressure operated actuator
IPC: F15B15/12
Filed: 1973-03-13
Abstract: 1430196 Sealing vanes of semi-rotary actuators R MIRKOVIC and S VICAR 13 March 1973 [13 March 1972] 11937/73 Heading F1F The vane of a semi-rotary actuator has a seal 15  which extends continuously around the vane 14 and its hub, the seal covering each side of the vane and its peripheral edges sealingly engaging the axial end-walls and peripheral wall of the chamber housing 13, a further seal 19 being provided in the housing for wipingly sealing the hub portion of seal 15. Seal 19 presents two lips 19a for engaging seal 15 and the latter has multiple saw-toothed peripheral edges around the hub Fig. 3, (not shown) to provide labyrinth sealing. Along the sides of the vane 14, seal 15 has outwardly turned peripheral lips and the outer surfaces of the seal 15 have a felt layer extended thereover which is impregnated with oil to provide lubrication of the seal Fig. 5, (not shown).
Patent GB-1101845-A (GB)
Title: Improvements in sparkover control circuit for lightning arrester shunt gap unit
IPC: H01T1/04
Filed: 1966-03-18
Abstract: 1,101,845. Surge diverters. GENERAL ELECTRIC CO. 18 March, 1966 [22 March, 1965], No. 11981/66. Heading H2H. In a lightning arrester for very high voltage systems of the type in which additional valve resistance material (4) is shunted by a spark gap unit 5 responsive primarily to lightning surges, Fig. 1 (not shown), the unit 5 comprises main gaps G<SP>1</SP> ... G 5  which have substantially the same individual spark-over voltage and are sequentially fired at an applied voltage across terminals 6, 7 whose value may lie between the individual spark-over voltage and the sum of all the spark-over voltages. The firing voltage in the range up to twice that of an individual gap is determined by the value of resistor R 2 , higher spark-over levels being achieved by adding a resistor in series with auxiliary gap S 3  (above the junction with R 5 ) and another in series with the gap S 4 . The auxiliary gaps S 1  . . . S 4  act as pre-ionizers for the respective gaps G 1  - - - G 4  and control the sequential spark-over of these gaps, each gap S 1  . . . S 4  having an individual spark-over voltage about half that of the gaps G 1  . . . G 4 . A coil 8 provides magnetic blow-out for the arcs in the gaps G 1  . . . G 4  which may be of the horn gap type. Capacitor C 1  ensures that the spark-over voltage of the unit 5 is substantially independent of the wave shape of the applied voltage, and capacitor C 2  short-circuits the coil 8 until after the gaps G 1  - - . G 4  have fired. A typical operation is described in which gaps G 1  . . . G 5  are sequentially sparked over in that order. In a modification, Fig. 3 (not shown), the gaps S 2 , S 3 , S 4  are replaced by corona-type pre-ionizers shunted by resistors which, with members R 1  8, form a voltage divider network after the gap S 1  has sparked over. Compensation for applied voltage waveshape is provided by two capacitors respectively connected across the gaps G 3 , G 4 , these capacitors also contributing to the sequential operation of the unit.
Patent GB-107861-A (GB)
Title: Improvements in Cushion Heels.
Inventor: WOOSNAM ARTHUR
IPC: A43B21/24
Filed: 1916-08-26
Abstract: 107,861. Woosnam, A., (Scholl Manufacturing Co.). Aug. 26, 1916. Protectors, construction of. - A cushion heel lift is provided at its forward inner portion with a stiffening-member. Preferably the lift is made of rubber with the usual holes and washers for the securing nails, the stiffening - member comprising a U-shaped metal strip. Fig. 5, apertured at 19, and disposed so that its legs 15 are flush with the upper face of .the lift while its body portion 16 extends parallel to that face and is located somewhat below the tread. The lift is preferably moulded to produce a gradual thickening below the stiffening-member towards the corner 10<a>.
Patent GB-724121-A (GB)
Title: Improvements in and relating to contact rectifiers
Inventor: SMITH DEREK RANDALL
IPC: H02M7/40
Filed: 1952-05-14
Abstract: 724,121. Converting. BRITISH THOMSON. HOUSTON CO., Ltd. Feb. 26, 1953 [May 14, 1952], No. 12220/52. Class 38 (2). To obtain sparkless switching of the contacts of a contact converter, across each pair of contacts B which are in series with a switching choke A, are connected two selenium rectifiers C, D poled in opposition, an auxiliary voltage source E, preferably D.C., being connected across one of the rectifiers D through a control rheostat G and a smoothing inductor F. Fig. 2 shows the voltage/current characteristics S, T of the two rectifiers C, D. Immediately before contacts B open, the currents through the contacts and rectifiers C, D are #i, i, i 2  respectively, and the rectifiers are operating at points J, H. Immediately after opening the contacts, # i  is transferred to the bridge circuit, the current in the rectifiers becoming i 1  + #i and i 1  - #i respectively so that the rectifiers operate at points K, L. The rise in voltage across contacts B is thus V KJ  + V KL  which is made small by choosing operating points beyond the knees of the characteristics of suitably selected rectifiers. The auxiliary voltage source E is preferably connected across that rectifier poled to permit current flow in the direction of the negative voltage appearing across B when these are opened. A three-phase bridge arrangement of contacts is described in which a common rectifier D is provided for each set of three contacts, Fig. 3 (not shown).
Patent GB-289474-A (GB)
Title: Improvements in or relating to circuit interrupters
IPC: H01H9/34
Filed: 1928-04-26
Abstract: 289,474. Associated Electrical Industries, Ltd., (formerly Metropolitan-Vickers Electrical Co., Ltd.), (Assignees of Slepian, J.). April 29, 1927, [Convention date]. Arc-rupturing devices. - The arc formed between contacts 2, 4 of a contactor or other switch is driven into a deionizing structure comprising a series of metallic plates 24 having tapering V-shaped notches as shown in Fig. 5. The notches are aligned so that together they constitute a V- shaped groove into which the arc is driven, and the arc, in the case of an alternating-current is extinguished as the current passes through zero. If the arc persists after reaching the top of the V groove, it becomes split up into a series of short arcs between the plates 24, which are sufficiently long to prevent the arc reaching the top of them before the current reaches zero. The arc is driven upwards by a magnetic field formed between the sides of a U-shaped iron member 27, which field may be produced by the current flowing round the curved arcing horns 30, 31 which constitute the end portions of the contacts 2, 4. Electromagnetic switches. - The invention is shown applied to a contactor switch having three pairs of contacts 2, 4. Each movable contact 4 is supported in a slot at the end of the arm 5 and is adapted to be pressed into engagement with its fixed contact 2 by a spring 11 on a rod 10 passing loosely through holes in the members 4, 5. The three arms 5 are mounted on a bar 6, turnable on trunnions 7 and carrying an armature 17 attracted by the core 18 of an electromagnet 19. The weight of the armature 17 turns the bar 6 into open position when the magnet is de-energized. Specification 288,326 is referred to.
Patent GB-1159056-A (GB)
Title: Process for the Preparation of Olefins.
Inventor: MCGRATH BRIAN PATRICK
IPC: C07C6/04
Filed: 1967-03-16
Abstract: 1,159,056. Disproportionating olefins. BRITISH PETROLEUM CO. Ltd. 15 Feb., 1968 [16 March, 1967], No. 12303/67. Heading C5E. Olefins are prepared by co-disproportionating an initial mixture of an olefin of formula R(R 1 )C = C(R 2 )R 3 , the R substituents being H, alkyl or aryl groups, with an easily polymerizable tertiary olefin containing the grouping or a secondary olefin containing the grouping wherein Ar is an aromatic radical in the presence of a catalyst comprising Re 2 O 7  supported on Al 2 O 3 , wherein the support or the Re 2 O 7  or Al 2 O 3  catalyst has been modified by the addition of a minor proportion of alkali or alkaline earth metal ions. The catalyst may be subjected to thermal activation either in a stream of inert gas (e.g. N 2  CO 2  or He) or in air or O 2  followed by a final treatment in inert gas. An example describes the co-disproportionation of a feed containing butene-2 and iso-butene over a catalyst containing 14% Re 2 O 7  and 0À25% Na+ to give a product containing propylene and 2-methyl butene-2.