baber/WOPTO huggingface dataset:
Patent GB-535470-A (GB)
Title: A process for the granulation of superphosphate
IPC: C05B19/02
Filed: 1939-07-26
Abstract: 535,470. Superphosphate. SILESIA, VEREIN CHEMISOHER FABRIKEN. July 26, 1939. No. 21759. Convention date, Aug. 15, 1938. [Class 1 (iii)] Superphosphate is granulated by converting it into a plastic mass by mechanical treatment involving pressure and movement, and then treating the plastified mass by simultaneous movement and heating. The first stage may be effected by means of edge mills, extrusion presses or pressing worms. and the second stage may be effected in rotary tubes or mixing drums which may be internally or externally heated. An example is given, in which the second stage is effected at 120‹C. Specification 491,841 is referred to.
Patent GB-1323435-A (GB)
Title: Dropout compensator for colour television
IPC: H04N9/88
Filed: 1971-04-19
Abstract: 1323435 Drop-out compensator MINNESOTA MINING & MFG CO 19 April 1971 [16 Feb 1970] 21778/71 Heading H4F A " drop-out " compensator for a demodulated colour video signal derived for example from a magnetic tape, comprises a switch actuated by a " drop-out " detector to replace the input video signal with a delayed (one or more line periods) portion of the input video signal, and an AGC circuit to maintain a predetermined amplitude relationship between the input and delayed video signals. The arrangement preferably also includes a phase control circuit operative upon the delayed video circuit automatically to maintain a predetermined phase relationship between the chrominance signals in the input and delayed video signals. The automatic phase control circuit, Fig. 3, which is in the delay channel for the demodulated colour video signal (delay circuit 80 has a delay of one or more scanning line periods) comprises bandpass filters 60 and 54 which pass the chrominance signals only to a phase shifter 62 and a variable phase shifter 56 respectively. Variable phase shifter 56 is controlled by an error signal and the corrected signal is phase shifted by 180 degrees in processor 58 (to compensate for the " half-line-offset " in the NTSC system when the delay comprises an odd number of line periods) and added to the luminance signal passed by low pass filter 50. The error signal is derived by comparing 64 the phase of the output chrominance signal of processor 58 and the output of phase shifter 62 (the amount of phase shift imparted by this shifter is dependent upon the type of comparator 64 utilized e.g. it may be 90 degrees). Low-pass filter 68 averages the error signal over a number of lines. The AGC circuit, Fig. 4, which is preferably used for the delay circuit 80 in Fig. 3, comprises a delay element 90 which delays the video signal for one or more line periods as before, and an AGC 92 and amplifier 94, which compensates for any loss in amplitude due to the delay element 90 per se. The delayed and undelayed video signals are D.C. clamped during the blanking intervals by clamps 98 and 96, as shown, and the luminance components compared in comparator 104 to derive the control signal for the AGC 92.
Patent GB-1378708-A (GB)
Title: Gasoline additive
IPC: C08F8/32
Filed: 1973-05-10
Abstract: 1378708 Polyolefin derivatives BRITISH PETROLEUM CO Ltd 10 May 1973 [10 May 1972] 21795/72 Heading C3P [Also in Divisions C4-C5] Compounds of formula. where R is an alkenyl group derived from a polyolefin, R<SP>2</SP> and R<SP>3</SP> are C 1-10  alkylene, R<SP>4</SP> is hydrogen or C 1-12  alkyl and m is 2-12, may be prepared by reacting a diamine of formula HR<SP>4</SP>NR<SP>3</SP>N(R<SP>4</SP>) 2  with an acid of formula HOOC(CH 2 ) m COOH, reacting the product with a diamine of formula HR<SP>4</SP>NR<SP>2</SP>NHR<SP>4</SP> and further reacting with RX where X is halogen. The polyolefin may be a polymer of ethylene, propylene, a butene or 4-methylpentene-1, particularly polyisobutylene. The compounds may be used as detergent additives in gasoline. In examples C 4-6  alkane dioic acids are reacted with (1) N,N-dimethyl-1,3-propylene diamine followed by ethylene diamine or (2) ethylene diamine and the products further reacted with polyisobutenyl (1300) chloride.
Patent GB-444289-A (GB)
Title: Hardening photographic gelatine emulsions and gelatine solutions
IPC: G03C1/30
Filed: 1935-08-02
Abstract: Gelatine is hardened by the addition of diketones such as diacetyl acetylcaproyl, acetylbenzoyl or dibenzoyl.  Other hardening agents such as formaldehyde or chrome alum may be added. The diketones may be added in solution in methanol.  The hardening effect is greatest at the pH value of 8.
Patent GB-806348-A (GB)
Title: Method of heating gases and vapours to high temperatures
IPC: F22B1/18
Filed: 1956-07-16
Abstract: Fuel oil in a state of fine subdivision is injected into steam heated to a temperature of 1500 DEG  C. in a thermal regenerator (see Group XIII), to produce an oil having a high olefine content as well as liquid cracked products.
Patent GB-279212-A (GB)
Title: Improvements in or relating to voltage regulating systems
IPC: G05F1/24
Filed: 1926-09-07
Abstract: 279,212. Igranic Electric Co., Ltd., Spaink, J. H. Abbink-, and Taylor, J. R. Sept. 7, 1926. Boosting by static transformers; regulation, automatic.-The voltage boost of a transformer Ta is automatically varied according to the supply voltage by a series of interlocked electromagnetic switches 1 - - 6 varying the secondary connections of a transformer Tb supplying the transformer Ta through a choke C. The switches 1 - - 6 are controlled by relays 15 - - 18 the operation of which is initiated by voltagesensitive relays 7 - - 10 responding to different voltage conditions. The last may be of the kind described in Specification 269,646, [Class 38 (v), Electric switches &c.]. The coils of the relays 15 - - 18 are controlled by auxiliary relays 11 - - 14 controlled by the voltage relays. For no boost main contacts 1a, 2a are closed, for succeeding steps 2a and 3a, 3a and 4a, and 4a and 5a and finally 5a and 6a. In addition to electrical interlocks which ensure correct operation of switches, mechanical interlocks prevent contacts 2a and 4a, 4a and 6a, 5a and 3a, 2a and 5a, 3a and 6a opening simultaneously. On failure of supply contacts 1a close and prevent inductive surges.
Patent GB-862998-A (GB)
Title: Improvements in and relating to reciprocating fuel containers of internal combustionengines
Inventor: LANG ANTON
IPC: E01C19/36
Filed: 1959-06-26
Abstract: 862,998. Tanks. DORNFELD, R., and DORNFELD. E. June 26, 1959 [July 10, 1958], No. 22042/59. Class 69 (1). [Also in Group XXVII] A reciprocating fuel container 1, e.g. of an internalcombustion hammer, is divided by a baffle 9 into two chambers A, A<SP>1</SP>, connected by narrow passages 7, 11 which prevent gas being entrained in the fuel in the lower compartment feeding a fuel injection pump 3 The container 1 is formed in the cylinder head of a hammer and the baffle 9 is conical and provided at its outer edge with narrow orifices 11 through which gas bubbles escape from the lower compartment, the inner edge of the baffle forming a narrow annular passage 7 around the in jector body through which fuel flows into the lower compartment. In a modification the baffle is formed by a disc seated on a ledge on the container wall and both the inner passage 7 and outer passage 11 are formed as annular passages.
Patent GB-583624-A (GB)
Title: Improvements in or relating to the manipulation of wire
IPC: B21F1/06
Filed: 1944-11-09
Abstract: 583,624. Making wire articles. SPORING, P. A., JOHNSON, C. P., and TELEGRAPH CONDENSER CO., Ltd. Nov. 9, 1944, No. 22053. [Class 83 (iv)] Angular bending ; shearing.-A wire stem 1 is provided with a symmetrical eyolet 2 by first bending the end of a continuous wire W, Fig. 6, to form an eyelet to one side thereof and then bending the stem in the plane of the eyelet to make them symmetrical. The wire is then fed and the article cut off. The wire, not shown in Figs. 2, 3, is assumed to have been fed by mutilated rollers 31, 32, driven by a friction clutch 5, shaft 6 and gears 33, 34, through a guide 4 to a rotary head 3 with formers 11, 12. The head is rotated through 225 degrees from the position shown in Fig. 2 by a pinion 9, rack 23, cam 24, shaft 8 and bevel gears 7 from the shaft 6 to produce the eyelet 2, Fig. 6. The guide 4 is then moved to produce symmetry by rotating its shaft 13, Fig. 3, slightly against the action of a spring 30, Fig. 2, by an arm 27 and cam 29 on the shaft 6. The head 3 is then lowered, to release the eyelet 2, by a ball bearing 15 trunnioned to a lever 17 operated by a spring 21 and a cam 20 on the shaft 6. The guide 4 is returned to its normal position, the wire is fed again to give the desired length of stem and cutters 42, 43 are advanced by spring-returned levers 48, 49, arm 55 and a cam 57 on the shaft to cut off the completed article which falls down a shoot 58. The head 3 is then raised to engage the severed end of the wire by the cam 20 and the operations are repeated indefinitely. The length of wire fed may be adjusted by raising a spring-pressed 'lever 35 pivoted at 36 which carries the roller 32, rotating this relative to the roller 31 and then allowing the gears 33, 34 to re-engage in the new position.
Patent GB-608035-A (GB)
Title: Improvements in or relating to electrical recorders and reproducers
IPC: H04R11/08
Filed: 1944-11-09
Abstract: 608,035. Sound recorders and reproducers. STANDARD TELEPHONES & CABLES, Ltd., and GAYFORD, M. L. Nov. 9, 1944, No. 22061. [Class 40 (iv)] An armature assembly for an electrical sound recording or reproducing head comprises an armature formed by a plate of magnetic material mounted for vibratory movement about an axis in its own plane upon leaf springs in the plane of the armature in its normal (or rest) position extending normally to the said axis and fixed at their ends, the armature being connected to each of the springs substantially mid-way between the fixed ends of each of the said springs. The armature 20 carrying a stylus 22 or sapphire point oscillates between the ends 9 ... 12 of bifurcated polepieces 5, 6 associated through end pieces 2, 3 with a cylindrical permanent magnet 1. The armature as indicated in detail in Fig. 6 comprises plates 42, 43 of magnetic material secured by riveting or spot welding to a cross-bar element of a H- shaped member 44 of springy metal such as beryllium-copper. Spacer pieces 45, 46, 47 of magnetic material are inserted between theplates 42, 43 which have recessed portions 48, 49 forming a cylindrical socket for the stylus 40. The ends of the vertical arms of the H-shaped member 44 are soldered in slots 50 in plates 16, 17 extending across the front and rear surfaces of the polepieces 5, 6. A fin 24 formed on the armature 20 is gripped between pads 25 of rubber located in a slot of a bridgepiece 13 connected to the end pieces 2, 3. In the reproducer, Fig. 4, a U-shaped permanent magnet 27 is provided with polepieces 28, 29 and the ends of the arms of the H-shaped member carrying the armature 39 are secured in slots in brass members 37, 38 bolted to a plate 34 secured to a bridge-piece 31 clamped across the magnet 27. The lower end of the armature is enclosed by a damping pad 41. The pivotal axis of the armature is preferably below the centre line of the armature assembly and is chosen to provide a minimum moment of inertia about the pivotal axis of the armature. The plate 34 is secured to the tone arm 36 by a bracket 35.
Patent GB-718329-A (GB)
Title: Improvements in and relating to slide-action stop valves
IPC: F16K3/316
Filed: 1951-03-21
Abstract: 718,329. Manually-actuated valves. THYSSENSCHE GAS-UND WASSERWERKE GES., and VEREINIGTE ARMATUREN-GES. March 21, 1951 [April 20, 1950], No. 22073/52. Divided out of 718,272. Class 135 In a sliding gate valve for fluid pipe lines having resilient pressure rings urging the gate member and its seatings into contact with each other, the contacting surfaces of the gate and its seating overlap each other to such an extent that there is no gap through which fluid may pass from the valve flow passage into the interior of the valve casing. As shown in Fig. 1, a valve casing mounts seating plates a which are engageable with plates g carried by a valve gate c operable by a nut d and a screwed spindle b. The plates a and g overlap so that in all positions of the valve they are in contact with each other. Figure-of-eight sealing rings f, Fig. 3, of natural or synthetic rubber compressed between the gate c and its plates g urge the plates g into sealing contact with the plates a. The rings f may, if desired, be vulcanized to the plates g. In a modification sealing rings m, Fig. 4, are disposed between the seating plates a and the valve casing j to urge these plates into engagement with a valve gate i.
Patent GB-1131708-A (GB)
Title: Improvements in apparatus for launching torpedoes from a submarine tube
IPC: F41F3/10
Filed: 1966-05-18
Abstract: 1,131,708. Launching torpedoes. SVENSKA FLYGMOTOR A.B. 18 May, 1966 [19 May, 1965], No. 22135/66. Heading B7A. [Also in Division F1] Apparatus for launching a torpedo comprises a launching tube constituted by a tubular easing 1 lined with shock-absorbing material 2 and alternate axially-orientated beams 3, 4, each of the beams 4 being furnished with an axially-extending slot 7 and housing a carriage 6 with two pairs of rolls engaging with the interior surface of the beam on either side of the slot, which carriage can be driven along the beam by pressurized hydraulic-fluid directed into a flexible hose 5 that is depressed by a further pair of rolls on the carriage. A torpedo conveyer 10 is attached to the carriages 6 by members 8 extending through the slots 7. An annular channel (not shown) is provided at each end of the launching tube for distributing fluid to the hoses 5 so that the carriages can be driven in either direction. When the torpedo is launched the tube aforesaid is filled with water through channels constituted by the beams 3, which are of the box type. To prevent injury to the hoses 5, a flexible band 9 of relatively stiffer material may be lodged between each hose and the associated carriage.
Patent GB-1470339-A (GB)
Title: Partially hydrogenated 1h-indeno-1,2-b-pyridine derivatives and process for preparing them
IPC: C07D221/16
Filed: 1974-05-17
Abstract: 1470339 Derivatives of 2-oxo-IH-indeno- [1,2-6]-pyridine HOECHST AG 17 May 1974 [19 May 1973] 22186/74 Heading C2C [Also in Division A5] The invention comprises compounds of formula and their salts, wherein R 1  and R 2  are each H, halogen or C 1-4  alkoxy; R 3  is pyridyl or Ph (possibly substituted by 1 or 2 of halogen, NO 2 , acylamino, C 1-4  alkyl or alkoxy, NH 2 , N forming part of a heterocyclic ring, or NH 2  substituted by 1 or 2 C 2-18  aliphatic or aromatic hydrocarbon radicals); bond A is single or double; and X is O or S. In examples, these compounds are prepared by (1) reducing a 4a-5 double bond (and simultaneously any NO 2  group present); (2) reacting 3,4-R 1 R 2 C 6 H 2 CO(CH 2 ) 3 CN or a IH-5,6- dihydro - 6 - (3,4 - R 1 R 2 C 6 H 3 )pyrid - 2 - one with R 3 CHO; (3) cyclizing a 3-(1-amino-6-R 1 -SR 2 -3-R 3 -2-indanyl)propionic acid; or (4) converting X=0 to S using P 2 S 5  or PCl 5 /H 2 S.
Patent GB-188106-A (GB)
Title: New or improved wheel locking device for perambulators applicable to other hand propelled vehicles
IPC: B62B5/04
Filed: 1921-08-22
Abstract: 188,106. Rodway, J. I. Aug. 22, 1921. Locking vehicle wheels by positive detents.-A wheel locking-device for perambulators and similar vehicles comprises a bolt f sliding in a casing b mounted upon the wheel axle. a and normally urged between the wheel spokes i by a spring h. A Bowden wire extends from the bolt to a lever l pivoted upon the vehicle handle m so that when this handle is grasped, the bolt is disengaged from the wheel. The lever l is adapted to lie flush with the handle m in a groove therein. The wire g is passed over the handle or through a hole therein so that friction serves to reduce the pressure of the hand necessary to hold the bolt in the disengaged position.
Patent GB-628456-A (GB)
Title: Improvements in or relating to aircraft pressure cabin controllers
IPC: B64D13/04
Filed: 1944-11-10
Abstract: 628,456. Fluid-pressure servomotor-control systems. CLEVELAND, F. J. (Boeing Aircraft Co.). Nov. 10, 1944, No. 22225. [Class 135] Valve apparatus to control the flow of air through an aircraft cabin so that in the highest altitude range the ratio of cabin pressure to the ambient atmospheric pressure is substantially constant has a pressure ratio control device having resilient pressure sensitive means accessible only to the ambient atmospheric pressure. The embodiments of Figs. 1 and 2 (not shown), have identical counterparts in Specification 628,455. In Fig. 3, however, the absolute pressure control device 2 is divided by a diaphragm 29 to provide with the aid of the fixed orifice 26a and the adjustable orifice or valve 28a proportional control as described in connection with Fig. 3 of Specification 628,455. The pressure ratio control however, in this case, is embodied in the differential pressure control 3 and takes the form of a spring-loaded evacuated bellows 36 arranged between the floor of the piston 31 and the shoulder on the spindle 12a. Specifications 521,623, 621,669, 621,670 and 622,283 also are referred to.
Patent GB-479474-A (GB)
Title: Improvements in or relating to fire escape and like apparatus
IPC: A62B1/14
Filed: 1936-08-12
Abstract: 479,474. Rope-grips. ARLE, J. Aug. 12, 1936, No. 22245. [Class 78 (ii)] [Also in Group XXV] A slide of a fire-escape or like apparatus comprises a frame A within which is pivoted at 10 a bight member C ; an anchored rope down which the slide runs passes through apertures 4 and 5 in the frame and is looped round the bight member through holes therein, whereby the frictional engagement of the rope turns the bight member from the position shown in full lines, in which the check on Descent is a minimum, to that shown in broken lines, in which the check on descent is a maximum. A descending person can turn the bight member from the latter position by means of a handle 12. A projecting part 22 on the bight member engages the rope adjacent the opening 5, when the handle is released, to check the speed of descent further. Additional means to check the speed may comprise friction wedges pivoted to the bight member and adapted to be thrust between the rope and the sides of the openings 4 and 5 on rotation of the bight member, or friction balls or rollers mounted within the openings 4 and 5. The descending person is supported from a reversible bracket D also pivoted at 10, and the whole device is double-ended so that the rope can be hauled up after one descent and another descent made with the slide running in the reverse direction in relation to the rope.
Patent GB-692440-A (GB)
Title: Improvements in or relating to the manufacture of pyro-mellitic acid
IPC: B01J8/18
Filed: 1950-09-11
Abstract: Benzene 1 : 2 : 4 : 5-tetracarboxylic acid is obtained from benzene polycarboxylic acids by heating at 250-400 DEG  C. in presence of water-vapour, and in a fluidized state.  This state may be maintained by coating or impregnating a porous carrier with the initial material, in an amount of 1-3 times that of the carboxylic acids, preferably by an aqueous solution of the acids, subsequently removing the solvent.  In examples, benzene-polycarboxylic mixtures are heated in the presence of steam with or without nitrogen and on carriers of fine pumice or coke breeze.  Specification 692,454 is referred to.
Patent GB-962674-A (GB)
Title: New androstane and 19-nor-androstane derivatives and the preparation thereof
IPC: C07J75/00
Filed: 1961-06-21
Abstract: The invention comprises steroids of the general formula: <FORM:0962674/C1/1> wherein R1 represents H, CH3; R2 represents H, Cl or OH; R3 represents H, H or a H, b OH or keto; R4 represents H, F; R5 represents H, H or CH2; X represents H, OH or =N -CH2CH2OH; Y represents H, H or a H, b OH or a CH3, b -OH or a C2H5, b OH or =N-CH2 CH2OH (at least one of the symbols X and Y represents =N-CH2CH2CH2OH) and the corresponding derivatives unsaturated in the 1, 2-, 4, 5- or 5, 6-position or in the 1, 2- and 4, 5-positions, and the preparation thereof by reacting the required 3-keto, 17-keto or 3, 17-diketo steroids with b -hydroxyethylamine.  Therapeutic compositions having androgenic or anobolic activity and which may be administered orally contain as the active ingredient steroids of the above general formula.
Patent GB-1100052-A (GB)
Title: Improvements in or relating to processes of hot forming high speed tool steel
IPC: C21D7/13
Filed: 1965-05-27
Abstract: 1,100,052. Working at specified temperatures. GEBR. BOHLER & CO. A. G. 27 May, 1965 [11 June, 1964; 8 Oct. 1964], No. 22529/65. Heading B3V. In hot forming by rolling, forging, extruding or pressing high-speed tool-steel, the steel is heated to a temperature not in excess of its Ac 1  point and no more than 120‹ C. below the Ac 1  point and then hot formed. Due to heat generated during the forming operation the work-temperature may rise above the Ac 1  point but not up to the Ac 3  point. The best starting temperature within the range can be found by rolling, upsetting, hot tensile or hot-. twisting tests.
Patent GB-600855-A (GB)
Title: Improvements relating to horticultural and like syringe or hose attachments
IPC: B05B1/18
Filed: 1945-09-03
Abstract: 600,855. Nozzles. CROSSLAND & WOOD, Ltd., WOOD, R., and CROSSLAND, A. G. Sept. 3, 1945, No. 22584. [Class 69 (iii)] A nozzle from a pump-barrel. b or a hose has three or more delivery jets of different types, e.g. a rose, jet and fine spray, the nozzle having ball valves g in guide channels i on the inner side of the fitting cap a to block any two of the jets. The jets shown are a rose spray c, a single jet d and a fine spray e. Fig. 3 shows guides i to direct the two balls into their seatings to close the bottom outlets. Hand rotation of the whole nozzle, say through a 120 degrees, brings a different outlet to the' top delivery position, the balls moving down to block the two lower jets.
Patent GB-1361583-A (GB)
Title: Cantilever slide gate
IPC: E05D15/06
Filed: 1972-05-15
Abstract: 1361583 Cantilever slide gate USS ENGINEERS & CONSULTANTS INC 15 May 1972 [13 May 1971] 22646/72 Heading E1B A cantilever slide gate 30 is supported on posts 2 and 6 by means of a longitudinally movable track 24 which moves on two pairs of fixed rollers 22 carried by brackets 8 on the posts, the gate also having two pairs of rollers fixed thereto which move on the track. The track comprises two channel section members with their webs vertical and their flanges projecting towards each other interconnected by a plate welded between the mid lines of the webs, and the rollers bear on the flanges. Each end of the track is provided with a stop to limit the movement of the gate in opening and closing directions. A flexible cable 48 is fixed to each post and to the gate at 50 and passes around sheares 46 fixed to the track. The brackets 8 are vertically adjustable. The posts 2 and 6 are braced by a torque bar 23.
Patent GB-976835-A (GB)
Title: A novel unsaturated aldehyde and the preparation thereof
IPC: A23L5/40
Filed: 1963-05-31
Abstract: The invention comprises 8-[2,6,6-trimethyl-4-methoxycyclohexen-yl-1]-2, 6-dimethyloctatrien-2, 4, 6-al-1 and a process for preparing it by treating 6-[2,6,6-trimethyl-4-methoxycyclohexen-1-yl-1]-4 -methylhexadien-2, 4-al-1 with triethyl orthoformate and ethyl propenyl ether in succession and hydrolyzing the acetal formed. Specification 976,834 also is referred to,
Patent GB-258596-A (GB)
Title: Improvements in or relating to railway rail joints
IPC: E01B11/56
Filed: 1926-09-15
Abstract: 258,596. Reifer, O. Sept. 16, 1925. [Convention date]. Rail joints. - Rail ends are prevented from lateral movement by guide parts on the base portions of fish-plates which support the rail bases. The fish-plates a, b have one or more tongues a<2>, b<2> which interengage, the tongues being narrow so as to contact with guide bolts d, f or side flanges connecting the tongues on the adjacent plate. The upper tongues may have projections a<3>, b<3> to limit the longitudinal movement. The joint is supported on sleepers.