baber/WOPTO huggingface dataset:
Patent GB-879954-A (GB)
Title: Process for the manufacture of tertiary alkylamine phthalazones
Filed: 1958-06-24
Abstract: Compounds of the general formula:  <FORM:0879954/IV (b)/1> wherein R1 is an acyl or aralkyl residue optionally substituted by halogen atoms, alkyl or alkoxy groups, R2 is a bivalent straight or branched chain alkylene group of 2-5 carbon atoms and R3 and R4 are C1-C4 alkyl groups which together with the adjacent N atom may form a heterocyclic ring, such as a pyrrolidine, piperidine, morpholine or imidazole ring, are prepared by reacting a phthalazone of the general formula <FORM:0879954/IV (b)/2> in the form of their alkali-metal salts with haloalkylamines of the general formula <FORM:0879954/IV (b)/3> Salts may be formed with penicillins and with other acids.  An iodomethylate is also described.  The phthalazones used as starting materials are prepared by reacting hydrazine with o-benzylbenzoic acid, m-tolulyl-o-benzoic acid. benzalphthalide, naphtholbenzalphthalide, p-chloro-or p-methoxybenzalphthalide (prepared from p-chloro- or p-methoxyphenyl acetic acids and phthalic anhydride respectively) or benzal-4(5)-chlorophthalide (from phenylacetic acid and 4-chlorophthalic anhydride).
Patent GB-531101-A (GB)
Title: Means for launching or releasing aerial mines or the like
IPC: F41H11/04
Filed: 1939-07-11
Abstract: 531,101. Aerial warfare. MUIR, H. J. July 11, 1939, No. 20202. [Class 9 (ii)] [Also in Group XXXIII] For launching an aerial mine, or a meteorological sounding apparatus supported by a balloon, the mine &c. is held in a cup-shaped container 15, provided with a handle 16, until the cable, which is wound around the outside of the container, is completely unwound  and lifts the mine &c. out. The strikers 14 of the mine ,are arranged in a conical surface and normally rest upon the chamfered upper edge of the container. The cable is wound upon a reel 19 removable from the container so that other reels may be quickly affixed by screwing. Each reel has a groove 18 to accommodate the inner end of the cable, the outer end of which has a swivel 22 and hook for attachment to the balloon. The outer end is held by a frangible tie 23 and the coiled cable may be held in position by shellac until it is drawn off the reel, or removable pieces of adhesive tape may be used. Specification 485,306 is referred to.
Patent GB-956863-A (GB)
Title: Improvements in electrical condition-sensing apparatus
IPC: G01F23/26
Filed: 1960-06-08
Abstract: 956, 863. Determining liquid levels; bridge measurements; telemetering systems. MINNEAPOLIS-HONEYWELL REGULATOR CO. June 8, 1960 [June 8, 1959], No. 20214/60. Headings G1N and G1U. A self-balancing bridge for indicating the value of a variable condition comprises an additional impedance, normally having no essential function but providing a signal for remote indication when the indicator is used with a further identical indicator. As shown, the value of capacitor 20 is dependent on the level of liquid in tank 21. Antiphased voltages are fed to amplifier 70 via capacitors 20, 68 from calibrating potentiometers 40, 47; a further amplifier input voltage is derived from a rebalancing potentiometer 50 via a capacitor 60. A motor 78, driven by the output of amplifier 70, drives the rebalancing potentiometer 50 to null the sum of input voltages to amplifier 70. The liquid level is then indicated by pointer 82. Remote indication. An identical repeating indicator 10<SP>1</SP> may be plugged into socket 15<SP>1</SP> connecting the voltages to winding 31<SP>1</SP> and to the line winding of motor 78<SP>1</SP> in opposition to those in the primary indicator 10. Capacitors 92<SP>1</SP>, 94<SP>1</SP> are now used to simulate the empty and added values of the sensing capacitor 20. The rebalancing potentiometer 50<SP>1</SP> is thus driven until the slider voltage nulls that from the slider of potentiometer 50. Pointer 82<SP>1</SP> now provides the remote indication. Fig. 2 (not shown) relates to a modification in which capacitor 94<SP>1</SP> is replaced by one contained in the primary indicator 10.
Patent GB-1072970-A (GB)
Title: Game apparatus
IPC: A63H33/22
Filed: 1966-05-09
Abstract: Apparatus for playing a competitive game consists of pictures divided into reference areas and reproductions of small parts of the original pictures, the object of the game being to identify the area of the original picture to which the small part belongs.
Patent GB-358108-A (GB)
Title: Improvements in or relating to centerless grinding machines
IPC: B24B5/22
Filed: 1930-07-04
Abstract: 358,108. Centreless grinding. CINCINNATI GRINDERS, Inc., 3058, South Street, Cincinnati, Ohio, U.S.A.- (Assignees of Binns, G. W. ; 3555, Edwards Road, Oakley, Cincinnati, Ohio, U.S.A.) July 4, 1930, No. 20362. Convention date, July 5, 1929. [Class 60.] Bevelling. -A centreless grinding-machine for grinding bevelled ends and a central groove on rollers, consists of a bed 10 having mounted thereon in a head 11 three grinding- wheels 12a, 12b, 12c, and in an adjustable head 14, a regulating- wheel 15. The work-pieces 38 are fed from a trough 52 to a guide formed by members 32 .. 37 carried by a bracket 19 on the slide 13 of the regulating-wheel. The work-pieces are fed downwards through the grinding-throat by two similar cams 21, 22 driven by chain gearing from a motor 28, and, after grinding, enter slots 43 in the cams, from which they fall into a discharge shoot 47. Before the work-pieces enter the throat, they are guided by a bar 48 and a weight-pressed pivoted bar 49 ; during the grinding, they are centralized by the end grinding-wheels 12a, 12b.
Patent GB-1025162-A (GB)
Title: Improvements in or relating to valve bags
IPC: B65D30/24
Filed: 1964-05-19
Abstract: 1,025,162. Valve bag. COMPAGNIE NDUSTRIE DES TEXTILE ET EMBALLAGES PLASTIQUES C.I.T.E.P. May 19, 1964 [May 30, 1963], No. 20574/64. Heading B8K. A sleeve 9 (Fig. 2), is secured to a valve flap 3 and a bag wall 4 by a continuous weld d so that the bag may be filled only through the sleeve 9 and a slit 5 in the bag wall. The slit 5 may be straight or have a broken line or curved configuration. A sheet of non - thermoplastic material may be placed in the sleeve to prevent the opposing faces being welded to each other. After filling, the sleeve 9 may be closed by folding, welding, gluing or adhesive tape. The bag may be made of polyethylene, jute, cotton, paper, metal or a laminate. An extended portion on the sleeve 9 adjacent the base of the valve pocket may be inserted into the bag via the slit 5 to facilitate filling,
Patent GB-531297-A (GB)
Title: Improvements in or relating to acoustic control means in association with the direction indicators of motor vehicles and the like
IPC: B60Q1/34
Filed: 1939-07-17
Abstract: 531,297. Road-traffic signals on vehicles. REICHMAN, W. July 17, 1939, No. 20764. Convention date, July 16, 1938. [Class 118 (ii)] A compact acoustic device is provided which can be connected readily in place of the indicating lamp sometimes used in association with the direction indicators of motor vehicles. The device consists of a buzzer that fits into the socket 2 of the indicating lamp and is housed within the transparent casing 3 usually employed to cover the lamp. The device comprises a magnet coil 4 having a movable iron core 5, and a cap 7 which may be made of metal or of insulating material. In the latter case, a small contact plate 8 is secured to the cap to co-operate with a contact 9 on the core. A spring 11 urges the core against the cap and acts in conjunction with the coil 4 to cause rapid reciprocation of the core when the coil is energized.
Patent GB-1019158-A (GB)
Title: Improvements in or relating to axial-flow compressor,blower or fan with reduced noisiness
IPC: F04D29/54
Filed: 1964-05-20
Abstract: 1,019,158. Axial-flow compressors, blowers and fans. J. JENIE, J. NEMEC and Z. MORAVEC, May 20, 1964 [May 21, 1963], No. 20781/64. Heading F1C. Noise in an axial-flow compressor, blower or fan is reduced by arranging that #/#o is greater than 0À65, where To is the circumferential pitch of the blades of either the stator 1, Fig. 2, or the rotor 2, measured at the tip diameter D 2 , Fig. 3, and # is determined graphically as follows. A point B on the trailing edge 3 of a stator blade at a diameter D is projected at b on to the conical surface of revolution described by the leading edge 4 of a rotor blade, intersecting this surface at a point B<SP>1</SP>. The locus of all such points B<SP>1</SP>, from the root diameter D 1  to the tip diameter D 2 , when further projected parallel to the axis O of rotation on to a plane at right angles to this axis forms a trace 3<SP>1</SP> on that plane of the trailing edge 3. The leading edge 4 is similarly projected on to this plane to form a trace 4<SP>1</SP>. If these traces 3<SP>1</SP> and 4<SP>1</SP> are rotated about the axis O until they have a common point E on the root diameter D 1 , they subtend at the tip diameter D 2  the required value #. A similar construction can be applied in the case in which the stator blades follow the rotor blades instead of preceding them. The optimum value of S is Z r /Z s , where Z r  is the number of rotor blades and Z s  is the number of stator blades. Preferably,   Z r /Z s  = 1/k, i/2, where i is an integral positive odd number and k is an integral positive number or   Z r /Z s  = 1/k (i-2/3) or 1/k (i-1/3), where i and k are integral positive numbers.
Patent GB-1299783-A (GB)
Title: Method of, and apparatus for charging a thermostatic system
IPC: H01H37/36
Filed: 1970-04-30
Abstract: 1299783 Temperature responsive actuating devices; testing for leaks DANFOSS A S 30 April 1970 [7 May 1969] 20796/70 Headings G1D and G1S A thermostatic system is charged firstly with a substantially non-condensable medium such as nitrogen and subsequently with a condensable medium. As shown, the system which comprises a temperature sensor 1 connected by a capillary tube 3 to a chamber 5 provided with a diaphragm 6 is connected by way of pipes 12, 20, magnetic valves 17, 18, 22 and a reducing valve 14 to a container 13 containing nitrogen under pressure and is also connected by way of further pipes and valves to either a container 23 or container 31 containing a condensable medium. In use, the thermostatic system is flushed with nitrogen by suitably actuating the valves 17, 18, 22 and further valves 19, 36, 37 which allow escape of gas to the atmosphere or the pressure to be suitably reduced in the system by operating a vacuum pump 38. When the system has been flushed and the gas pressure therein reduced to a required pressure as indicated on a gauge 21 the condensable medium is charged into the system either in liquid form from the container 31 by way of valves 33, 35 and a measuring container 34 or in vapour form from the container 23 by way of valves 24, 26 and 29 and a measuring container 27 provided with a pressure gauge 28, the pressure gauge 28 being arranged, if desired, to automatically open and close the valves 26, 29 at predetermined pressures in the container 27 so that automatic supply of a predetermined quantity of condensable medium can be effected. The thermostatic system may be tested for leaks during the flushing operation by immersing the system in a liquid when the system has been charged with nitrogen under pressure and observing any bubbles indicative of leaks.
Patent GB-875683-A (GB)
Title: Improved apparatus for the heat treatment of materials
IPC: D21F5/00
Filed: 1958-07-01
Abstract: <PICT:0875683/IV(c)/1> Webs or a series of conveyed sheets of thin flexible material e.g. cloth are heat treated by burners (not shown) in a chamber 1 through which a stream of air is passed by a fan 5 for maintaining a constant temperature therein and for removing vapour &c. through an exhaust 3, 4, the stream being automatically controlled by means responsive to the temperature within the chamber. The means comprise a thermostat 8 within the chamber set to a predetermined temperature which controls a valve 7 within the exhaust duct by means of a solenoid-actuated valve 13 and a fluid-operated cylinder and piston device 11, 12 to control the amount of air exhausted from the chamber.
Patent GB-643314-A (GB)
Title: An improved liquid fuel burner
IPC: F23D11/04
Filed: 1948-08-10
Abstract: 643,314. Liquid-fuel burners. PIETRI, F. Aug. 10, 1948, No. 21040. Convention date, Aug. 13, 1947. [Class 75(i)] A fuel oil burner of the kind comprising a stationary fuel oil-feeding pipe 6 having at one end a stationary radially-discharging nozzle and a fixed or rotatable fuel distributing member, e.g. a cylinder 10, thereon, a rotatable cylindrical atomizing cap 13 arranged about the member 10 to form an annular fuel outlet opening 18 therewith, an open-ended tubular casing 1 disposed about the cap 13, and external helicoidal blades 16 carried on the outer periphery of the atomizing cup 13 for driving air axially through the casing 1, is characterized in that the casing 1 has on its internal wall a plurality of stationary blades 17 adjacent to and coacting with the rotary blades on the cup 13. The cup 13 is integral with a sleeve 12 on the pipe 6 and is rotated by a pulley or gear wheel 15 and associated driving means.
Patent GB-224314-A (GB)
Title: Improvements in or relating to advertising on vehicles
IPC: G09F21/04
Filed: 1923-08-21
Abstract: 224,314. Harrington, W. D. Aug. 21, 1923. Moving apparatus combined with vehicles; actuating and controlling.-An illuminated sign carried by a vehicle has its component parts variably lit or extinguished by a distributor contact rotated by a moving part of the engine or like driving member such as the cam or crank-shaft. The distributor consists of a casing 1 supporting a shaft 7 rotated by a sprocket-driven spindle 2 through worm gear 5, 6. At each end of the shaft 7 is a contact drum 8, 9, to either of which the sign may be connected at will. The drum 8 has stepped portions 11, 11<1>, 11<2> of different lengths, with which contact is made by springs 12 connected to terminals 14. The drum 9 has a number of contacts 16 each touching in turn a series of springs 17 connected to terminals 19. The drums 8, 9 are earthed through the spindle 2 which carries a spring-pressed stud bearing against a ring 21. A battery supplies the current and a switch may be provided to illuminate the sign continuously when the engine is stopped.
Patent GB-203863-A (GB)
Title: Improvements in combined pressure and vacuum gauges
IPC: G01L7/04
Filed: 1922-08-03
Abstract: 203,863. Salter & Co., Ltd., G., and Rogers, L. N. Norris-. Aug. 3, 1922. Bourdon pressure gauges.-A sensitive tube is employed, which to resist pressure is assisted by a spring band or the equivalent, a stop being provided to prevent the band influencing the tube when under vacuum. The tube 1 moves the needle through the usual quadrant and pinion gear 6, 8 and is surrounded by a resilient check band or split ring 12 which is fastened to the casing at one end while its free end 13 is adapted to engage a fixed stop 14. Tangential springs 15 are provided to increase the resistance offered by the band 12 to expansion of the tube 1 and to assist contraction thereof. When the gauge is exposed to a vacuum the tube 1 acts under its own resiliency, the stop 14 preventing action of the band. A modification is described in which curved metal strips are pressed against the tube by radially arranged spiral springs.
Patent GB-874855-A (GB)
Title: Colorimetric recorder means and temperature compensator therefor
IPC: G01N21/27
Filed: 1959-06-19
Abstract: 874,855. Temperature-compensated photoelectric comparators. TECHNICON INSTRUMENTS CORPORATION. June 19, 1959 [July 10, 1958], No. 21180/59. Class 40(3) An instrument for measurement of the light transmission through a liquid comprises a potentiometer for comparing the outputs of two photocells, one receiving light through the liquid and the other through a standard, and includes a temperature-sensitive device for compensating the output of the photocells for change in temperature. Light from a source 12 passes through cells 28, 38, containing the standard and test liquids respectively, to photocells 30, 40. The voltage developed across the resistor 48 is applied to the slide-wire of a potentiometer 44. The voltage difference between the taps 68, 72 of the potentiometers 44, 46 respectively is applied to a converter 54 whose output feeds a motor 62. The motor 62 drives threaded shaft 70 to move both the tap 68 and the stylus of a recorder R until there is no voltage difference between the taps 68, 72. Since the output of the photocells varies with temperature a thermistor 82 is placed in contact with each cell so that the voltage across resistor 48 remains constant while that across resistor 72 is compensated.
Patent GB-928368-A (GB)
Title: Rolling mill
IPC: B21B13/20
Filed: 1961-06-13
Abstract: 928,368. Rolling. F. PLATZER. June 13, 1961 [June 18, 1960], No. 21248/61. Class 83 (4). A rolling mill comprises a number of freely rotatable rolls 4 mounted in driven cages 12 and 13, the paths of the rolls being determined by rollers 6 which are mounted on the roll shafts and follow cam tracks 8 and 9 on stationary supports 2 and 3. Bearing blocks 16 are spring urged radially inwardly to keep the rollers 6 in contact with the cam tracks, the latter being formed at 10<SP>11</SP> and 11<SP>11</SP> with parallel portions at the working position. Specifications 758,073, 822,132 and 828,128 are referred to.
Patent GB-353238-A (GB)
Title: Improvements in direction indicators for motor vehicles
IPC: B60Q1/34
Filed: 1930-07-14
Abstract: 353,238. Road-traffic signals on vehicles. HARRIS, R. C., Shaftesbury House, Prince Consort Road, Gateshead-on- Tyne. July 14, 1930, No. 21294. [Class 118 (ii).] Rotary drums C bearing manoeuvre signals are mounted at the front and rear of a vehicle and operated simultaneously by a hand-lever F by means of an endless wire D secured to a drum E. Lamps K within the drums are automatically lighted as the lever F enters the appropriate notch. The drums may display, in addition, a destination indication or an advertisement at the neutral positions.
Patent GB-1077499-A (GB)
Title: Internal combustion engine
IPC: F02B75/26
Filed: 1966-05-13
Abstract: 1, 077, 499. Swash-plate engines; ignition systems. G. A. WAHLMARK. May 13, 1966 [May 20, 1965; April 28, 1966], No. 21357/66. Heading FIB. In a swash-plate engine with a rotary cylinder block 12, inlet and exhaust to the cylinders are controlled by a rotary valve plate 13. In the three-cylinder four-stroke engine shown the pistons 15 drive the swash-plate 16, fixed to shaft 20, through ball joints 16c and the swash-plate drives the cylinder block 12 through toothed gearing 16b. The cylinder block is urged towards the stationary cylinder head 10 by a spring 50b and the crank-case is sealed by sealing rings 43, 47 urged against plate 44. The valve 13 is driven from the block by a shaft 21 which drives a reduction gear 51, 53, 54, meshing with a sleeve 67, the lower end of which drives the plate 13 at half the speed of the block 12. The plate 13, Fig. 7 (not shown) has pairs of ports (13a), (13b), (13c), each pair co-operating with the inlet and outlet port (87) of a respective cylinder. The engine may operate with a carburetter or with a fuel injector; as shown a sparking plug (85), Fig. 5 (not shown) rotates with the block and contacts a supply terminal (91) to provide ignition. Binding of the valve 13 is prevented by balls (73) Fig. 8 (not shown) which produce a camming action to force valve 13 away from its seat if the friction increases. Oil is fed to the valve gear and the shaft 20 by centrifugal force produced by flange 93 in the swash-plate 16 which dips into oil 31b in casing 31.
Patent GB-1218548-A (GB)
Title: Improvements in or relating to heating devices for thermoplastic pipes
Inventor: ABLEWHITE JAMES MURRAY
IPC: B29C35/04
Filed: 1967-05-09
Abstract: 1,218,548. Heating pipe ends. TENAPLAS Ltd. 3 May, 1968 [9 May, 1967], No. 21537/67. Heading B5A. [Also in Divisions B2 and F3- F4]  Pipe ends are softened prior to re-shaping by inserting the end into a chamber and spraying it internally and externally with a heated recirculated liquid, such as glycerine, brine or water, the liquid being removed from the pipe during withdrawal by wipers mounted in the wall of the chamber. In the embodiment illustrated in the Figure the pipe is inserted into the chamber through an annular gap defined by an outer variable orifice diaphragm 2 and an internal diaphragm 3 and is sprayed with glycerin through a central tube 8 and outer spray rings 7. The glycerine is recovered in a heated reservoir located at the bottom of the chamber and is reciroulated to the spray tube and rings by a pump mounted on the outside of the chamber.
Patent GB-1382293-A (GB)
Title: Production of percarboxylic acids
IPC: C07C407/00
Filed: 1972-05-09
Abstract: 1382293 Percarboxylic acids DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 9 May 1972 [21 May 1971] 21581/72 Heading C2C  Percarboxylic acids are obtained by reacting the corresponding carboxylic acids or esters thereof with C 1-4  aliphatic alcohols, in the gas phase with hydrogen peroxide in the presence of solid acid catalysts. The catalyst may be applied to a support, such as alumina. Specified acid catalysts are ammonium sulphate, sodium hydrogen sulphate, barium nitrate, aluminium phosphate, aluminium sulphate and boron phosphate.
Patent GB-1167633-A (GB)
Title: An improved process for the production of a Thermostable Trioxane Copolymer
IPC: C08G2/38
Filed: 1967-05-10
Abstract: 1,167,633. Trioxan copolymerization. INSTYTUT TWORZYW SZTUCZNYCH. 10 May, 1967 [13 May, 1966], No. 21611/67. Heading C3P. Trioxan copolymers are obtained in particulate form by copolymerizing trioxan with another heterocyclic monomer in the presence of a cationic polymerization catalyst and a non- ionic surface-active agent. Dioxolan is the specified comonomer, cyclohexane the specified reaction solvent, and the specified classes of surface-active agent are saturated polyesters, polyvinyl acetals, alkylene polyethers, and condensation products of acids, alcohols or phenols with epoxides. Exemplified surface - active agents are polyvinylbutyral, oxyethylated nonyl phenol, polyethylene oxide and polypropylene oxide, and the catalyst BF 3 .(C 2 H 5 ) 2 O.
Patent GB-975413-A (GB)
Title: Portable film viewer
IPC: G03B23/12
Filed: 1961-06-15
Abstract: 975,413. Film viewers. EXECUGRAF CORPORATION. June 15,1961 [Aug. 29, 1960], No. 21659/61. Heading G2J. A film cartridge comprises an elongated housing with two reels therein and means for simultaneously rotating them: the two walls extending between the reels are provided with viewing apertures. The cartridge may be place in a film view which is provided with means for driving said rotating means. The cartridge shown in Fig. 4 comprises a housing having two apertured walls 17, 18, with lenses in the apertures, and two rotatable reels 40, 41 which are spring urged into a coupled engagement with sprocket wheels 83, 84. A third sprocket wheel 92 is provided and all three are connected by a chain 100 which moves in a channel which keeps it tensioned. Mounted on the same shaft as sprocket 92 is a sprocket 95 which engages perforations in the film and therefore rotation of this shaft results in the film being fed and the reels rotated. The cartridge may be mounted in a viewer 15 (Fig. 10) so that a sprocket 135 with a projection 136 is urged by spring 135 into coupling engagement with the shaft of sprocket 92, 95. The sprocket 135 is connected by a chain 130 to a gear in a manually rotatable knob 26.