baber/WOPTO huggingface dataset:
Patent GB-1425250-A (GB)
Title: Anthraquinones
IPC: C01B15/023
Filed: 1973-06-19
Abstract: 1425250 Hydrogen peroxide E I DU PONT DE NEMOURS & CO 19 June 1973 [20 June 1972] 29060/73 Heading C1A [Also in Division C2] Hydrogen peroxide is produced in the cyclic process by reduction of alkylated anthraquinones dissolved in a solvent followed by the oxidation of the produced anthrahydroquinone in which the improvement comprises employing as an anthraquinone a tetrahydroanthraquinone of Formula I wherein R is a C 1 -C 10  alkyl group and R 2  and R 3  are independently H or C 1 -C 6  alkyl groups or a corresponding 1,2,3,4-tetrahydroanthrahydroquinone or a 1,4-dihydroanthraquinone of Formula II when R 1 , R 2  or R 3  are as defined above.
Patent GB-866263-A (GB)
Title: Improvements in or relating to vacuum flasks
IPC: A47J41/02
Filed: 1956-09-26
Abstract: 866,263. Vacuum-jacketed vessels. BRITISH VACUUM FLASK CO. Ltd., and HASSID, M. A. Aug. 1, 1957 [Sept. 26, 1956), No. 29374/56. Class 64(2) The shoulder 6 of a vacuum flask is formed of polyethylene with a lip 2 as shown. The top being flexible and of smaller diameter than the vacuumjacketed vessel grips the latter which may have an external flange abutted by fins on the shoulder. As shown the bottom is formed to engage the casing as described in Specification 866,264. Just above this bottom is a slightly tapered surface for engaging the mouth of a cup 5. Inside the cup and/or on the surface there may be a thread or interrupted thread 15 or one of the surfaces may be smooth. The external surface 11 of the lip 2 may have a projection, such as a rib for engaging in an inwardly directed recess in a stopper. The Provisional Specification describes also a shoulder with a top formed as shown in Fig. 2 (Provisional) and a bottom which engages a casing as described in Specification 789,884.
Patent GB-425705-A (GB)
Title: Improvements relating to indicators for ironclad electric switches
IPC: H01H9/16
Filed: 1933-10-24
Abstract: 425,705. Indicators for switches. TUCKER, J. B., King's Road, Redfern Road, Tyseley, Birmingham. Oct. 24, 1933, No. 29393. [Class 38 (v)] An indicator for an ironclad switch comprises a plate a connected by a link a<1> to a crank or eccentric disc d at d<1>, the disc d being adapted to be turned by the switch operating handle f. The arrangement is such that the plate a which, in the " off " position lies within the casing b and between the body of the casing and the lid, projects above the casing in the " on " position.
Patent GB-1154472-A (GB)
Title: Process for the Production of Phenol-based Epoxide Resins
Inventor: HILLER CARL MARTIN
IPC: C08G8/28
Filed: 1966-06-30
Abstract: 1,154,472. Purifying epoxylated novolac resins. PLASTA, VEB. 30 June, 1966, No. 29462/66. Heading C3B. In a process for the production of an epoxylated novolac resin by etherifying with an epihalohydrin in alkaline medium a phenol-formaldehyde novolac produced in an acid medium, the epoxy resin is purified by dissolution in ethyl or butyl acetate, washing with a dilute carboxylic acid followed by water, and distilling off the solvent.
Patent GB-729836-A (GB)
Title: Improvements in or relating to conveyor systems for conveying flat objects (such as letters or post cards) in anupright or nearly upright position
IPC: B07C1/18
Filed: 1952-11-21
Abstract: 729,836. Letter distribution systems; endless conveyers. MIX & GENEST AKT.-GES. Nov. 21, 1952 [Dec. 4, 1951], No. 29477/52. Class 78 (1). In a conveyer belt system in which flat objects, e.g. letters or postcards, are conveyed in upright position in a number of parallel channels above a conveyer belt, a number of superposed conveyer belts are arranged alternately to travel in opposite directions and means is provided for transferring the objects from a channel associated with one belt to a corresponding channel on the next lower belt, and for leading the objects from the channels into corresponding collecting boxes or shoots at suitable points. As shown, letters may pass round suitable guides from a channel F of the upper belt B1 to the corresponding channel of the lower belt B3 either with or without turning. In Fig. 5 the guiding is positive and without turning and is effected by a guided extension of belt B3 co-operating with a sloping end portion of belt B1. The extension of belt B3 may be replaced by a separate belt, Fig. 4 (not shown), whose upper part may be swung forwards for inspection purposes. The sloping part of belt B1 may be replaced by a separate belt B1a driven at higher speed than belt B1. In Fig. 6 the letters are turned by the combination of an endless band B2 and a stop K so that they fall on the belt B3 in upright position. Either the band B2 or the stop K may be used alone to provide the turning.
Patent GB-868522-A (GB)
Title: Power operated typing mechanism
IPC: B41J25/02
Filed: 1957-08-29
Abstract: 868,522. Typewriters. BURROUGHS CORPORATION. Aug. 29, 1957 [Sept. 11, 1956], No. 29487/59. Divided out of 868,520. Class 100(4) A power operated typing mechanism comprises a cyclically operable power actuating means whose operation is initiated by ordinary keys connected through relatively movable connecting elements at least one of which is moved so that only a single cycle of the actuating means takes place and a separate key whereby adjustment of the connecting elements is made to enable an ordinary key to retain actuating means continuously cycling to effect repeat operation. An ordinary key, e.g. a key 4541 upon operation, through members 4555 or 7, 4570, 4571 rotates shaft 4572, Fig. 2, and a lever 4574 counterclockwise. Lever 4574 carries a pawl 4576 which engages end E of arm 4579 which allows crank 4585 to pivot counterclockwise and rotate shaft 4586, and, by lever 4587, Fig. 1, draw a link 4588 forwardly to initiate a cyclic type action. Upon completion the crank 4585 is restored against the tension of spring 4585 into Fig. 1 position. As the pawl 4576 no longer contacts part E of the arm 4579 the latter rises and when 4585 attempts to move anticlockwise again it is prevented even if the key is held depressed. If a repeat action however is required the repeat key R causes stud 4594 to engage in the fork in the lever 4574 and stops the arm 4579 from rising, so that the crank 4585 may move counterclockwise to effect a repeat action.
Patent GB-294983-A (GB)
Abstract: 294,983. Telefonaktiebolaget L. M. Ericsson. Aug. 3, 1927, [Convention date]. Counting-apparatus ; zeroizing - mechanism. - A counter particularly for use in voting-apparatus comprises coaxial numeral discs 41 of increasing size the stencilled numerals of which are rendered visible by optical projection apparatus. The discs are rigidly connected by a shaft and nested sleeves with the respective denominational elements of the counter. these elements being geared in series bv the usual Geneva mechanism for transfer purposes. The units element is actuated by a pawl 23 carried by the armature of a magnet 20. 'I'he counter is mounted in a frame 5 pivoted at 6 and capable of being rocked by means of two electromagnets 9, 9'. Normally a spring 11 and the magnet 9 maintain the counter in the position shown, but when the magnet 9<1> is energized in place of magnet 9 the counter is rocked downwards to effect zeroizing by means of the heart cams 34 and stationary discs 38. The actuating and d,etent pawls are disengaged in this movement by fixed and moving pins 52 and 29 respectively. The structure 4 carrying the frame 5 and the magnets is mounted at an angle on the adjustable supporting wall 2, Fig. 6, by means of a bracket 1 in order to equalize the paths of the rays proceeding from the lamp 43, through the discs and lenses to the mirror 47 and the screen 48.
Patent GB-1065573-A (GB)
Title: Tub spacing and despatching equipment for downgoing chain tramway
Inventor: KOTY EDUARD
IPC: B61K7/22
Filed: 1964-07-21
Abstract: 1,065,573. Spacing and moving mine tubs. DEMAG A.G. July 21, 1964, No. 29530/64. Heading B7L. [Also in Division F2] A mine tub spacing equipment comprises, on each side of a horizontal track, four motordriven friction wheels 1-4 which can be pressed against a tub to slow it down or to propel it; also mounted on the track are photoelectric cell controls a, b and a track switch 5. A chain 7 having driving dogs M1, M2 has a horizontal section 8 and a downwardly inclined section. In operation, a first tub or train running into the horizontal track is slowed by friction wheels 1-4 until the tub or train operates control a which causes wheels 1, 2 to stop the vehicle or train; control b is operated, if control a is in the operated condition, so that wheels 3, 4 arrest a following tub or train. A driving catch M1 engages the tub axle to move the arrested first tub or train forward to depress switch 5 which restarts friction wheels 1-4 and energizes controls a, b. The peripheral speed of the wheels is faster than chain 7 so that the tub axle is moved into abutment with dog M2 before reaching the downwardly inclined track so that the tub does not run forward into engagement with dog M2. The wheels 3, 4 which are restarted by track switch 5 move the next tub or train forward until control a causes wheels 1. 2 to arrest this tub or train.
Patent GB-672214-A (GB)
Title: Improvements in and relating to lawn mowers
IPC: A01D34/47
Filed: 1948-11-13
Abstract: 672,214. Making gear wheels. WEBB & CO., Ltd., H. C., and TAYLOR, F. W. Nov. 14, 1949 [Nov. 13, 1948], No. 29536/45. Class 83 (ii). [Also in Groups I and XXIV] A driving wheel for a lawn mower is provided with separate gear teeth 18 formed by a series of pressing operations on a strip of metal. Projections 21 are formed on the strip for welding the strip to the rim 15 of the wheel by projection welding. Specification 672,213 is referred to.
Patent GB-897538-A (GB)
Title: An improved ratchet drive mechanism
IPC: H03J1/06
Filed: 1958-09-15
Abstract: 897,538. Ratchet gearing. SYLVANIA ELECTRIC PRODUCTS Inc. Sept. 15, 1958 [Sept. 16, 1957], No. 29546/58. Class 80 (3). [Also in Group XL (c)] In a television receiver (see Group XL (c)) a tuner 13 is controlled by an arm 19 via the inner shaft 25 and a ratchet mechanism 11. The arm 19 is carried by a cylinder 63 which is loose on shaft 25 and projects through a hole 39 in a bracket 37 secured to the cabinet. A spring 45 is positioned immediately in front of an arm 47 attached to the cylinder 63 so that the arms 49, 51 are disposed on either side of a lug 81. A pawl 53 and a spring 59 are carried on a pin 87 attached to the arm 47. The legs of the spring 59 project through a slot 75 so that the spring 59 is normally compressed between the arms 49, 51 of the spring 45. When the arm 19 is depressed clockwise the arm 47 is rotated as far as the stop 85, compressing the spring 45 by engagement of the pin 77 with the arm 51. At the beginning of this movement tooth 101 of the pawl 53 engages the gear 57 fast on shaft 25 so that the tuner 13 is rotated through three step positions. On release of arm 19 it is returned to its normal position, the pawl 53 riding over the teeth of the gear 57. Rotation of the arm 19 in an anticlockwise direction as far as the stop 83 results in an anticlockwise rotation of the tuner 13 through up to two step positions. Fine tuning is achieved by rotation of the knob 23 which meshes with the gear 44 carried by the outer shaft 27. Specification 897,537 is referred to.
Patent GB-1375163-A (GB)
IPC: C07C255/32
Filed: 1974-07-03
Abstract: 1375163 α-(benzyl)-acrylo and propio-nitriles WELLCOME FOUNDATION Ltd (Burroughs Wellcome Co) 20 Oct 1971 [22 Oct 1970 16 April 1971] 29553/74 and 29554/74 Divided out of 1375162 Heading C2C Novel compounds II in which R<SP>1</SP> and R<SP>3</SP> are C 2-4  alkyl, R<SP>2</SP> is C 1-12  alkyl or C 1-12  alkoxy and (a) X and Y represent an additional bond and Z is alkoxy, alkylthio or NR<SP>4</SP>R<SP>5</SP> which is an aliphatic or aromatic amino group or a tertiary amino group in which NR<SP>4</SP>R<SP>5</SP> from a heterocyclic ring system or (b) X is hydrogen and Y and Z are alkoxy or together are alkylenedioxy are prepared by reacting a benzaldehyde III with a #-substituted propionitrile (IV) (Z-CH 2 - CH 2 -CN) in which Z is alkoxy, alkylthio or NR<SP>4</SP>R<SP>5</SP> to give compound II in which X and Y represent an additional bond and when compounds II are required in which X is hydrogen and Y is alkoxy carrying the reaction out in the presence of an alkanol and an alkali-metal alkoxide. Compounds II in which R<SP>2</SP> is C 1-12  alkyl and X and Y are an additional bond and Z is NR<SP>4</SP>R<SP>5</SP> are prepared by reacting a compound V in which n is 1 or 2 and R<SP>2</SP> is C 1-12  alkyl with a #-substituted propionitrile (IV). Compounds II in which X is hydrogen and Y and Z are alkoxy may also be prepared by reduction of an α-(R<SP>1</SP>R<SP>2</SP>R<SP>3</SP>-benzylidene)-#-#dialkoxy propionitrile. Compounds prepared are those in which R<SP>1</SP> and R<SP>3</SP> are ethyl, R<SP>2</SP> is methyl or ethyl and Z is anilino and X, Y a bond or X is hydrogen and Y and Z methoxy. Compounds V are prepared by reacting an R<SP>1</SP>,R<SP>2</SP>,R<SP>3</SP>-substituted benzoate with dimethyl sulphone or sulphoxide and reducing the ketone produced. The benzoate is prepared by esterification of the corresponding acid which may be prepared by oxidation of an acetophenone prepared by Friedel-Crafts alkylation of p-alkylacetophenone. Benzaldehydes III are prepared by Rosamund reaction.
Patent GB-445015-A (GB)
Title: Improvements in or relating to adjusting devices for carburetter throttle valves for internal combustion engines of motor vehicles
IPC: G05G1/30
Filed: 1935-10-25
Abstract: 445,015. Controlling motor vehicles. BERGSCHICKER, H., 13, Barfussgasse, Leipsto, Germany. Oct. 25, 1935, No. 29572. Convention date, Oct. 25, 1934. [Class 79 (v)] A foot control for the accelerator comprises a roller a adapted to be rolled over a support f by the driver's foot, the roller being held in position by a link b which is pivoted to a pendulum lever c connected by a link e to the engine throttle. Thus, as the roller is moved over the floor board f the lever c is rocked and the throttle is adjusted as required.
Patent GB-691789-A (GB)
Title: Improvements in or relating to stills
Inventor: SHACKLETON LESLIE ROBERT BURGE
IPC: C02F1/18
Filed: 1949-11-18
Abstract: <PICT:0691789/III/1> Double-effect distillation, particularly of sea water in portable stills, is effected using a burner to heat the first effect, i.e. the higher pressure effect, and allowing distilland to flow continuously through the boiler of the first effect while the second effect is intermittently charged with disstilland and emptied of distillation residues.  The first effect is preferably operated at atmospheric pressure and the second under reduced pressure produced by a hand pump.  In the portable apparatus for distilling sea-water shown in the Figure the first-effect comprises copper-boiler 1, burner 6, steam outlet-pipe 12, and constant-level brine off-take 3; and the second-effect comprises evaporator 14, steam outlet-pipe 23, condenser 24, receiver 26, and discharge-valve 29.  Coil 13 is common to both effects, for it is the condenser of the first-effect and the heater of the second. Distilled water from both effects is collected in vessel 27.  A pipe 34 drains the brine from evaporator 14 to steam-trap 10 via valve 35 and pipes 36, 9.  Valve 35 has a double-bore; and it admits air via pipe 39 to the top of the evaporator while the latter is being drained.  When it is desired to operate the apparatus, water is charged to boiler 1 and feed-tank 25, burner 6 is ignited, valves 29 and 35 are closed, and the pressure in the second-effect is slightly reduced by hand-pump 40.  When the water in boiler 1 has begun to boil, valves 33 and 31 are opened, and water is thereby supplied to boiler 1 and evaporator 14.  Valve 31 is closed when the water in evaporator 14 reaches a suitable level, as indicated by gauge 20.  The supply to the boiler, which passes through heater 17, pipe 18 and auxiliary tanks 8 and 7 before entering the boiler through tube 7a, is adjusted so that the water in the boiler overflows at a slow rate via off-take 3, pipe 9 and steamtrap 10.  Excessive deposition of salt in the boiler is thereby avoided.  When the brine-level is evaporator 14 has become low, valves 29 and 35 are opened.  The brine is thereby discharged from the evaporator; and the distilled water collected in receiver 26 flows into vessel 27 which already contains the distilled-water obtained from boiler 1.  Valves 29 and 35 are then closed, the pressure in the second-effect is again reduced by pump 40, and the evaporator is recharged by opening and closing valve 31.  In the meantime the first-effect can operate continuously. Specification 691,791, [Group XII], is referred to.
Patent GB-906459-A (GB)
Title: Arrangement for the tuning of oscillators with the aid of line circuits and electrically controllable reactances, preferably for the television band ó(
IPC: H04N5/50
Filed: 1960-08-26
Abstract: 906,459. Automatic frequency-control systems. STANDARD TELEPHONES & CABLES Ltd. Aug. 26, 1960 [Sept. 30, 1959], No. 29583/60. Class 40 (5). A wideband tunable U.H.F. oscillator, e.g. for a television receiver converter, includes a tuning line 1 with tuning and trimmer capacitors 2, 10, respectively, lines 4, 5 indicating the standing wave voltages on the line at limits of the frequency range. A.F.C. is provided by two at least voltage variable resistances, e.g. capacitors 12, 13 located preferably at the voltage nodes 6, 7 so that one at least is effective at each frequency limit and both effective intermediately of the range, so that a desired frequency control throughout the tuning range is obtained. Increased A.F.C. effectiveness with increase of tuning frequency may be obtained by displacing one variable capacitor 12 away from node 6 towards tuning capacitor 2. Different control voltages may be applied to both variable capacitors 12, 13 and each may have different capacity variation characteristics.
Patent GB-1215665-A (GB)
Title: Improvements relating to direct positive photographic silver halide emulsions
IPC: G03C1/485
Filed: 1969-06-11
Abstract: 1,215,665. Direct-positive photographic silver halide emulsion. E. I. DU PONT DE NEMOURS & CO. June 11, 1969 [June 12, 1968], No.29599/69. Headings G2C. Direct-positive photographic silver halide emulsions containing a fogging amount of at least one amine borane compound also contain at least one water-soluble gold compound in an amount to provide at least 0À4 x 10<SP>-5</SP> moles of Au<SP>+++</SP> or Au<SP>+</SP> per 1À5 moles of silver halide. Boranes specified are trimethylamine borane, test-butylamine borane and morpholine borane and gold compounds mentioned include auric chloride and aurous thiocyanate. The gold compound reduces the red sensitivity of the emulsion. The emulsion may also contain sensitizing dyes, e.g. 3-carboxymethyl-5-[3-ethyl- 2 (3 thiazolinylidene) ethylidene] rhodanine, and rhodium chloride as a kink desensitizer.
Patent GB-1026872-A (GB)
Title: Improvements in and relating to underground mine roof supports
Inventor: KIBBLE JOHN DUNBAR
IPC: E21D23/18
Filed: 1961-08-16
Abstract: 1,026,872. Hydraulic apparatus. COAL INDUSTRY (PATENTS) Ltd. Aug. 10, 1962 [Aug. 16, 1961], No. 29619/61. Heading F1P. In an advancing mine roof support system as claimed in Claims 4-6 of Specification 967,163 the fluid back-pressure in the ram 5 is applied to the valve 23 in co-operation with the force 26 resiliently biasing the valve into its closed position.
Patent GB-336398-A (GB)
Title: Method for the production of necked boxes with hinged lids
IPC: B31B105/00
Filed: 1929-09-30
Abstract: 336,398. Universelle Cigaretten-Maschinen Fabrik J. C. M³ller & Co. Jan. 31, 1929, [Convention date]. Addition to 319,330. Apparatus for making boxes. The blanks for making the box body and lid and the neck strip by the method of the parent Specification are formed from continuous webs in a continuous operation, the webs being subjected in their travel to the point where they are assembled over the folding die to the necessary stamping, gumming, labelling and printing operations. As shown, the webs Zo and Zu from which the lid and body parts of the box are formed are drawn from spools and travel towards each other to the assembly point St where the neck strips are fed over the abutting flaps of the blanks, the web Za from which the neck strips are formed being fed from a spool at right angles to the travel of the webs Zo and Zu. In their travel the webs Zo, Zu are provided with patches S of adhesive, have their edges trimmed by rotary cutters 7<1> and labels 8 applied from reciprocating pile holders to the adhesive S; rollers 10 press the labels on to the webs, rectangular parts 11 are then cut from the edges thereof, rollers 13 feed the webs between scoring knives which score the webs along the lines 15 and after the ends of the webs have passed beneath the forming block at the assembly point St, the blanks Zo<1>, Zu<1> are severed therefrom. The web Za is fed between the ribs of a grooving device R and the end taken by a reciprocating gripper 30 which lays the web over the blanks Zo<1>, Zu<1> at the point St and knives 33 then sever the neck strip Za' from the web; the webs Zo, Zu may be of different qualities.
Patent GB-298385-A (GB)
Title: Improvements relating to fastenings for the bonnets of motor vehicles
IPC: E05B65/19
Filed: 1927-11-05
Abstract: 298,385. Briscoe & Co., Ltd., W. H., and Suckling, A. Nov. 5, 1927. Hasp fastenings. - A pivoted fastening for motor-car bonnets &c. adapted to be swung into engagement with a forked lug j on the bonnet k comprises a square stem b pivoted to a bracket a with a stop c to limit pivotal movement, and having slidable thereon a tubular member d urged towards the pivot by a spring e, the member d carrying a screw h adapted to engage in a recess in the forked lug j under the action of the spring e. The screw has a head i by which, if desired, it may be operated to cause member d to engage the underside of lug j as shown so as to secure the fastening positively by clamping the lug between the screw and member d. To prevent accidental rotation of the screw a plate l slidable but not rotatable on stem b may be provided, the plate having serrations &c. m adapted to engage notches in the end of the screw, under the action of spring e, or, as shown, of an auxiliary spring n.
Patent GB-905757-A (GB)
Title: Improvements in rotary printing machines for the printing of sheets in a plurality of colours
IPC: B41F13/00
Filed: 1960-08-29
Abstract: 905,757. Rotary printing-machines. NEBIOLO S.p.A. Aug. 29, 1960 [May 18, 1960], No. 29741/60. Class 100 (2). In a sheet-fed rotary machine for printing in two colours and having printing units 1, 2 connected by transfer cylinders 6, 7, 8, each carrying respective gear-wheels 6a, 7a, 8a and sheet clamping means 13, 14, the power drive to the impression cylinders 3 of the units and the cylinders 6, 7, 8 is effected from a common source but transmission of power through the transfer cylinders from one cylinder 3 to the other is prevented by cutting the teeth of the gear-wheel 7a, which is the central wheel of the train 6a, 7a, 8a such that complete mesh between the wheel 7a and either of the wheels 6a, 8a is only effected at the moment of sheet transfer from either the cylinder 6 or the cylinder 7. Each printing unit comprises printing, offset and impression cylinders 5, 4, 3, the latter being driven from a common power shaft 9 through bevel gearing 10, 11. Gear wheels 3a, 3b keyed to the impression cylinders mesh with the wheels 8a and 6a, respectively.