baber/WOPTO huggingface dataset:
Patent GB-240652-A (GB)
Title: Apparatus for use in teaching or practising lawn-tennis
IPC: A63B69/00
Filed: 1924-10-11
Abstract: 240,652. Gaskell, H. Penn-. Oct. 11, 1924. Lawn-tennis practising and teaching appliances. -Apparatus for use in teaching or practising lawn tennis consists of a pedestal capable of variation in height and surmounted by a ballsupport, preferably of tubular rubber, possessing sufficient rigidity to maintain its erect attitude but capable of offering but little resistance to lateral movement when struck by the racket. As shown in Fig. 1, a telescopic pedestal b is surmounted bv an india-rubber tube c capable of readily yielding when struck by a racket in playing the ball a. In a modification, Fig. 2, the ball is supported on a hard rubber tube e extending upwardly from a bent arm d which is capable of rotating in the upper portion of the pedestal when the ball is struck. In a further modification, instead of employing the tube e, the ball is suspended from the arm d by means of a pair of resilient levers f, Fig. 3, connected to the arm bv cords h. In a further modification, Fig. 4, the ball is suspended by a cord sling f tightened by a rubber ring k.
Patent GB-501457-A (GB)
Title: Improvements in or relating to dartboards
IPC: F41J3/00
Filed: 1937-09-04
Abstract: 501,457. Dart-boards. BURDEN, A. F. Sept. 4, 1937, No. 24181. [Class 132 (iii)] A dart-board has the'playing surface formed of an assembly of strips of suitable dartpierceable material secured together in straight and parallel relationship. Strips or bars 2 of compressed fibrous material are secured together with the fibres running perpendicular to the playing surface. If strips of a flexible nature be used, the joins may be slightly waved. The playing surface is backed by a sheet of wood 3, or a sheet of wood may be interposed between two such playing surfaces. The scoring areas are defined by wires held on the surface by staples 4 which are driven through the playing surface into the backing sheet. A binding strip 5 may be applied to the periphery of the assembly. The board may be rectangular in which case the playing surface is defined by a circular line and the portions of the board surrounding this line may be covered by suitable panelling.
Patent GB-246070-A (GB)
Title: Improvements in means for drying stockings and the like
IPC: D06F59/06
Filed: 1925-09-29
Abstract: 246,070. Grime, M. Sept. 29, 1925. Drying-frames.-A drying-frame for stockings &c. is provided with a suspension c having a peg b adapted to be engaged with a slot in the frame.
Patent GB-462887-A (GB)
Title: Improvements in and relating to electric motor-generators for welding purposes
IPC: H02K11/00
Filed: 1936-09-05
Abstract: 462,887. Dynamo electric machine casings. SIEMENS - SCHUCKERTWERKE AKT.-GES. Sept. 5, 1936, No. 24305. Convention date, Nov. 14, 1935. [Class 35] A motor-generator in a common casing has the accessories disposed in a hollow integral foot which has apertures in its walls to accommodate some of the accessory parts. In the form shown, the foot 2 is integral with the casing 1 and contains accessories including a starter, regulator and instruments, some of which are arranged in the apertures 3.
Patent GB-841161-A (GB)
Title: Improvements relating to phase detection
Inventor: LONGFELLOW RICHARD CLARK
IPC: G01R25/00
Filed: 1957-07-31
Abstract: 841,161. Phase discriminators. GENERAL ELECTRIC CO. July 31, 1957, No. 24318/57 Class 40(5). Two waves have their phase difference measured up to almost 360 degrees by vectorially adding them in an amplifier 16, after limiting at 13, 15, then detecting the phase difference between the vector sum and one of the waves. The latter waves to this end may be amplified and limited in line amplifiers 17, 18 to equal amplitudes, then 90 degrees delayed versions of each wave added on to the other by an interconnecting #/4 transmission line 19 conducting energy both ways, but without reflection of energy at each end, and the combined waves each rectified by rectifiers 20, 21 to derive two outputs whose amplitude/phase difference graphs are successive half waves of like polarity but phase displaced by 90 degrees whose difference is taken by inverting one in a phase inverting amplifier then adding them in a network 24. Phase differences varying over +90 degrees to -90 degrees between the outputs of 17, 18 or over +180 degrees to -180 degrees between input amplifiers 12, 14, are thus indicated by maxima of opposite polarity at the output of network 24. The adding amplifier 16 may comprise two valves with common anode impedance. The adding network 24 may comprise two equal resistors in series with their connection as output. The inputs to amplifiers 12, 14 may be pulsed radio frequency waves.
Patent GB-1034868-A (GB)
Title: Inking mechanism for rotary printing machines
IPC: B41F31/14
Filed: 1963-06-19
Abstract: 1,034,868. Printing apparatus. AGFA A.G. June 19, 1963 [June 22, 1962], No. 24426/63. Heading B6C. An inking mechanism for incorporation in a rotary printing machine as a readily detachable unit comprises a forme roller 9 for contact with a forme cylinder 2 of the machine and a ductor roller 25 arranged for adjustable step-by-step advancement to supply ink to the forme roller. The mechanism also includes means for raising the forme roller from the forme cylinder and means for interrupting the drive for advancing the ductor roller, the interrupting means being so coupled to the raising means that when the latter is operated to raise the forme roller the ductor roller drive is interrupted. The raising means also effect separation of the forme roller, an ink distributer roller 5 and a damping roller 10 of the mechanism. A distributer roller 5 is carried by a spindle 4 forming part of a frame 6, itself part of the mechanism unit. Fixed on the spindle 4 at both sides of the frame 6 are cam discs 14, a setting lever 34 also being fixed to the spindle for rotation thereof together with the discs 14. The latter have cam surfaces 14b and 14c which on rotation of the lever in a clockwise direction respectively urge the bearings 7 and 8 of the forme roller 9 and the damping roller 10 radially outwards against springs 16 and 17. This rotation therefore lifts rollers 9 and 10 away from the roller 5. The discs 14 have in addition surfaces 14a which during the above mentioned rotation contact the bearings 7 and pivot the frame 6 together with the spindle 4 so that the forme roller 9 moves from the cylinder 2 against a spring 11. Through a stop 35 linked to the lever 34 the interruption of the ductor roller drive is positively combined with the separation, by way of lever 34, of the inking and damping rollers and also with the movement of the roller 9 from the cylinder 2. The lever 34 pushes the stop 35 into the path of a stop pin 22a on a lever 22 which is oscillated thereby causing step-by-step advancement to be transmitted to the ductor roller 25. A setting lever 37, which may be looked in a number of fixed angular positions, is used to control the magnitude of each step of advancing movement of the ductor roller by simply placing a stop 37b in predetermined locations along the path of the oscillating lever 22.
Patent GB-259571-A (GB)
Title: Improvements in or relating to marine cables
IPC: H01B9/06
Filed: 1926-10-05
Abstract: 259,571. Siemens - Schuckertwerke Ges. Oct.. 6, 1925, [Convention date]. Insulating coverings for cables; cables with strengthening means. - Lead-jacketed marine telephone cables with paper air space insulation have the core of the cable filled with a liquid or viscous substance which fills the hollow spaces and is absorbed by the insulation. By this means the lead jacket is uniformly supported and en. sured against deformation due to external pressure. Highly viscous refined products of rock oil, such as hot steam cylinder oils mixed with paraffin or ceresin are used and supplied to the cable under high pressure. The cable may alternatively be filled with air or gas under pressure.
Patent GB-664014-A (GB)
Title: Stabilization of frequency modulated oscillators
IPC: H03L7/26
Filed: 1949-09-26
Abstract: 664,014. Automatic frequency control systems. RADIO CORPORATION OF AMERICA. Sept. 26, 1949 [Nov. 30, 1948], No. 24678/49. Class 38 (iv). In a frequency-modulated oscillator provided with automatic frequency-control, the tendency for the A.F.C. system to reduce or annul the desired frequency modulation is counteracted by applying the modulation voltage not only to vary the oscillator frequency but also to vary the datum frequency at which the A.F.C. operates. In Fig. 3, the main oscillator 10 feeding a load 12 is arranged to beat in a rectifier 13 with a sweep oscillator 15, the beat being fed to a tuned amplifier 17 to give a pulse output whenever the beat frequency agrees with the amplifier frequency. The sweep oscillator 15 also feeds a resonance device 19, shown as a gas cell, to give a pulse output from the rectifier 20 to an amplifier 21. The pulses are compared in phase at 18 and the output voltage corrects the frequency of the klystron oscillator 10 by varying the reflector electrode voltage. The desired frequency modulation is applied through a transformer 47 and potentiometer tapping 42 to the klystron cathode; and is at the same time applied from tapping 40 to an electrode 45 in the gas cell 19 to give a corresponding variation to the resonance frequency thereof. The A.F.C. system is thus rendered ineffective to remove the frequency modulation imposed by the desired signal. In other arrangements of the invention, Fig. 1 (not shown), the A.F.C. system is similar to that described in Specification 658,198, and the frequency-modulating signal is applied to a thermionic reactance to vary the tuning of the beat amplifier 17, Fig. 2 (not shown). A further modification, Fig. 4 (not shown), employs an A.F.C. system disclosed in Specification 653,979. Reference has been directed by the Comptroller to Specification 663,065.
Patent GB-223591-A (GB)
Title: An improvement for heels of footwear
IPC: A43B21/40
Filed: 1924-10-17
Abstract: 223,591. Detachable Heels, Ltd. Oct. 17, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Protectors, securing.-Aheel for footwear is formed in two portions 1, 3 secured together by a plate 4 of triangular shape attached to one part with flanges 5 engaging undercut edges 6a of a flat plate 6 attached to the other part. The two interengaging parts are obtained from a single plate which is slightly larger than the heel to form overhanging pieces 8. These pieces are turned over after the heel is assembled to form locking means.
Patent GB-209459-A (GB)
Title: Electric switches for use in the magnetisation of permanent magnets
IPC: H01F13/00
Filed: 1922-09-13
Abstract: 209,459. Stentophone Motor Accessories (1921), Ltd., and Treloggan, A. H. Sept. 13, 1922. Automatic circuit-breakers; switches, actuating.-A switch for controlling the current used for magnetizing permanent magnets has two levers A, B mounted side by side on a common pivot C and each controlled by a spring H, H<1>. The lever B carries a contact D adapted to connect fixed contacts E and the lever B carries a pivoted armature K controlled bv a spring blade N. A catch L is secured to the armature K and so arranged that when the handle G at the lower end of the lever B is depressed the catch L engages a detent M secured to the contact lever A and carries this lever down until contacts E E are joined, thus switching on the magnetizing current and energizing a series electromagnet J. As soon as the current rises to a value corresponding to the strength of the catch spring N the, armature K is attracted, releasing the catch L from the detent M and allowing the spring H to move back the lever B, breaking the circuit at E, E. When utilized for magnetizing the magnets of a "Ford" ignition generator the windings are set correctly in relation to the poles of the permanent magnets and are connected through the switch to a, suitable electric supply. One or a number of impulses are sent through the windings by successively depressing the switch-operating lever. A similar arrangement is employed for magnetizing horsehair magnets, the current passing through the windings of a V-shaped electromagnet, Fig. 5.
Patent GB-1410321-A (GB)
Title: Process for the separation of terephthalonitrile
IPC: C07C/
Filed: 1974-06-05
Abstract: 1410321 Separation of terephthalonitrile SUN VENTURES Inc 5 June 1974 [16 July 1973] 24877/74 Heading C2C A process for the separation of terephthalonitrile from a gaseous ammoxidation of p-xylene product stream comprises cooling the hot product stream to a temperature above 150 C. and below 165 C. and separating the solid crystals of terephthalonitrile so obtained.
Patent GB-898092-A (GB)
Title: Method and apparatus for contacting a liquid and a fluid of less density
IPC: B01D47/02
Filed: 1959-07-20
Abstract: 898,092. Contacting a liquid with a fluid of less density. ALUMINIUM LABORATORIES Ltd. July 20, 1959 [July 29, 1958], No. 24884/59. Class 55 (2). In a method of contacting a liquid with a fluid of less density and not wholly miscible therewith, the fluid is passed upwardly in a vessel 10 from an inlet 17 to an outlet 22 through a bed of floating buoyant elements 27 arranged between grids 13 and 16 and wetted by liquid from pipe 20. The vessel 10 may contain more than one bed of buoyant elements and the buoyant elements are preferably spherical or spheroidal and may suitably be table-tennis balls, balls of foamed plastics with an impervious external surface or hollow metal spheres. The spheres used may be between  inch and 3 inches in diameter, preferably between 1 inch and 2¢ inches, and preferably have a density of 1¢ to 11 pounds per cubic foot. In an example of washing a gas with a liquid, the gas velocity was 600 foot per minute and the buoyant elements were spheres of 1¢ inches diameter weighing about 5.5 gms. apiece.
Patent GB-140333-A (GB)
Title: Improvements relating to bags and bag frames and the manufacture of the same
IPC: A45C13/04
Filed: 1919-10-11
Abstract: 140,333. Sieff, S. H. Oct. 11, 1919. Bags.-A bag having a mouth frame of trough section has the sheen secured in the trough of the mouth frame by means of tongues or projections f, Figs. 5, 11, and 12, formed in, or attached to, the mouth frame and taking under the shoulders h, Fig. 2, of the sheen. In the form shown in Figs. 5 and 11, the tongue is pushed into operative position after insertion of the sheen. In the form shown in Fig. 12, the tongue is of spring material.
Patent GB-446066-A (GB)
Title: Improvements relating to the purification of sewage or of gases containing air or oxygen
IPC: A61L9/03
Filed: 1935-09-06
Abstract: 446,066. Deodorizing gases. BLUNK, H., 7, Mozartstrasse, Essen, Germany. Sept. 6, 1935, No. 24905. Convention date, Dec. 24, 1934. Addition to 412,065. [Class 81 (i)] [See also Group I] The method described in the parent Specification for treating sewage in which the liquid passes through a filter bed directly enclosed laterally and covered by a roof is modified in that air, instead of being passed upwardly through the filter in countercurrent to the sewage is passed downwardly with it. The sewage is supplied to the filter c of granulated lava by a distributer h and air is forced in through a pipe d. After passing through the bed the air separates and is discharged through a pipe e and the liquid passes to a tank l. Foul gases, given off as the liquid is distributed are drawn through the bed and in presence of the air are broken down bacterially, the gas discharged through the pipe e being free from odour. Foul air or gas mixtures containing oxygen, such as gases from manure or glue factories, fish and hotel kitchens, gases containing sulphuretted hydrogen or gases from other sewage apparatus, may be deodorized by downward passage through the filter in company with sewage or water containing nutrients for the micro-organisms after the bed has been inoculated with suitable bacteria by treatment with sewage or activated sludge. Additional air or oxygen is supplied if necessary. Liquid from the tank may be passed to a vessel g, in which it is treated with nutrient material from a vessel k, and then raised to the distributer h by a pump f. Insects carried through the pipe e by the deodorized gas may be trapped in nets or sieves. To prevent the growth of fungi in the bed, hydrogen sulphide may be added to the air or gas supplied.
Patent GB-338200-A (GB)
Title: A method of manufacture of adjustable spanners, tools for carrying this method into effect and adjustable spanners obtained by this method
IPC: B21D53/00
Filed: 1929-08-15
Abstract: 338,200. Chobert, J. F. G. Aug. 15, 1929. Sliding - jaw wrenches; handles; jaw faces.-A fixed or movable jaw member of an adjustable wrench having two side plates formed by folding a single flat plate is constructed from a flat plate so shaped that the two side plates are connected together at the jaw nose along which the flat metal plate is folded. The movable jaw member 1 with side plates 2<1>, 2<2> of the screw wrench shown in Figs. 6, 7, 8 is formed from the flat metal plate 80, Fig. 9, comprising two similar portions connected together along the jaw nose parts 81', 81<2>. The plate 80 is folded along the dotted lines by apparatus shown in Fig. 14 comprising a matrix 33 with guides 34 and a die 37 coacting with a spring- pressed counterdie 38 serving also as an ejector. The side plates 2<1>, 2<2> of the bent plate are then trued up to bring the nut apertures 31<1>, 31<2> into exact alignment by apparatus shown in Fig. 15 comprising a matrix 40, 41, spring-pressed counterdie 43 and a shaping die formed of an H-section body 45 and cover plates 46 providing narrow recesses 48 to fit the side plates 2', 2<2>, the ends of which are engaged by abutments 47 at the top of recesses 48. The original blank may be modified as shown in Fig. 12 by providing extra metal 51<1>, 51<2> along the jaw noses which during the truing operation is forced into the jaw noses themselves by the die member 45, an additional blade being provided on the latter member to enter between the jaw noses. The fixed jaw member 3, Fig. 7, carries a screw 13, adjusting nut 14 and locking spring catch 11, and has an extension 10 to take the pressure on the jaw 1. In the modification, Fig. 18, the extensions of the side plates 2' are reduced and threaded at 55 to take adjusting nut 14. In another modification, Figs. 20 ana 22, the movable jaw 1 is formed from a suitable blank by first folding the side plates 2<1>, 2<2> and then bending about the nose of the jaw. Fig. 24 shows another construction with the fixed jaw member 3 formed by folding a blank about the nose of the jaw, the side plates 2<1>, 2<2> having teeth 90 to engage the worm 14, whilst Fig. 26 shows a wrench with similarly controlled fixed jaw member 3 and a movable jaw 1 adjusted by screw 110 and nut 14 mounted in slots 111. In another modification, Fig. 27, the fixed jaw member 3 is of similarly folded construction with teeth 90 engaged by a, worm 14 on movable jaw 95. In a further modification, Fig. 29, the fixed jaw member 3 is of similar folded construction and apertured to receive adjusting nut 14.
Patent GB-298756-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C17/02
Filed: 1928-04-23
Abstract: 298,756. Thomas, D. April 23, 1928. Air tubes and chambers. -A reserve air-tube b nested within the main tube a is formed of slightly smaller diameter than the latter so as to be held in tension at the rim side of the tyre when not in use. The tubes have independent valves, preferably arranged diametrically opposite one another.
Patent GB-586102-A (GB)
Title: Improvements in and relating to gramophone pick-ups or recorders
IPC: H04R11/08
Filed: 1944-12-13
Abstract: 586,102. Gramophone pick-ups and recorders. BRITISH THOMSON-HOUSTON CO., Ltd., and DYER, G. H. Dec. 13, 1944, No. 25034. [Class 40 (iv)] [Also in Group XXXVIII] In an electrical pick-up or recorder, the needle is held between two blocks of rubber or other resilient material, one of which is fixed and the other is adjustable towards or away from the needle to secure it or release it respectively. In the needle armature pick-up shown, the upper part of the needle 4 is located in a thin metal holder 5 held between two blocks 6 of rubber which are mounted between clamping pieces 7, 8. The clamping piece 7 is rigidly fixed, but the clamping piece 8 is capable of sliding between a block 3c and a guide plate 10 and is forced towards the fixed clamping piece 7 by means of a screw 11 passing through the side limb 1a of one of the polepieces of the magnet 2. The needle 4 is held in position by the holder 5 whose walls are sufficiently deformable by pressure of the rubber blocks 6 to grip the needle 4.
Patent GB-752528-A (GB)
Title: Improvements in or relating to substituted 4-hydroxy coumarins
Inventor: KNOEVENAGEL KURT
IPC: C07D311/46
Filed: 1954-08-30
Abstract: The invention comprises 3-substituted 4-hydroxycoumarins (and hydrates thereof) of the formula (keto form): <FORM:0752528/IV(a)/1> wherein R1 is an alkyl group, and R2 is phenyl or a substituted phenyl group (e.g. by nitro-, methoxy or halogen), and a process for their preparation by reacting 4-hydroxy coumarin with a b -keto ester R2CH : C(COCH3)COOR1, preferably in the presence of a basic catalyst, e.g. pyridine, an alkali metal alcoholate, or sodium or potassium triphosphate.  In examples: (1) 4-hydroxy coumarin, ethyl a -benzylidene acetoacetate and trisodium phosphate are refluxed in water, mixture cooled and solid product crystallized from aqueous acetone giving ethyl a -acetyl-b -phenyl-b -(4-hydroxycoumarinyl-3) propionate, which on recrystallization from benzene or toluene in the presence of water yields the corresponding monohydrate; (2) as in (1), but effecting the reaction in dioxane or toluene as solvent; (3) as in (2), using potassium triphosphate or pyridine as catalyst; (4) as in (1), effecting the reaction in the absence of a solvent. Saponification of the products of the examples gives 3-(1-phenyl-2-acetyl-ethyl)-4-hydroxycoumarin.ALSO:A rodenticide comprises a 3-substituted-4-hydroxy coumarin (or a hydrate thereof) of the formula (keto form) <FORM:0752528/VI/1> wherein R1 is an alkyl group and R2 is phenyl or a substituted phenyl group (e.g. by nitro-, methoxy or halogen), together with an edible bait material (e.g. corn, corn-starch or rolled oats).  A suitable concentration of active compound in the bait is from 0,01-0,03 per cent.
Patent GB-393922-A (GB)
Title: Improvements in or relating to fuel pumps for internal combustion engines
IPC: F02M59/36
Filed: 1931-09-08
Abstract: 393,922. Fuel-injection pumps. FIAT SOC. ANON., 250, Via Nizza, Turin, Italy. Sept. 8, 1931, No. 25215. Convention date, Sept. 30, 1930. Void [Published under Sect. 91 of the Acts]. [Class 102 (i).] In a fuel-injection pump the injection is terminated by a piston-valve 21, which puts the pump chamber 4 in communication with the suction chamber 30 by means of passages 29, 29<1> and a reduced portion 22 of the valve. The suction port is controlled by the plunger, the fuel entering the pump chamber by passages 28<1>, 28 and the space 22. The valve 21 is operated from the plunger-operating rod 9, by means of a lever 13 having an eccentric pivot 12. The operating mechanism is contained in a chamber 2 in the casing.