baber/WOPTO huggingface dataset:
Patent GB-1176530-A (GB)
Title: Dye-Bleaching Bath for the Silver-Dye-Bleach Process
Inventor: GUENTHER EBERHARD
IPC: G03C7/28
Filed: 1967-09-21
Abstract: 1,176,530. Photographic silver-dye-bleach bath. AGFA GEVAERT A.G. Sept. 21, 1967 [Sept.21, 1966], No.43049/67. Heading G2C. An aqueous dye-bleach bath for the photographic silver-dye-bleach colour process contains 45 to 125 ml. of quinoline and 5 to 40 ml. of quinaldine per litre and possesses a pH of below 2 and an electro-chemical silver potential with reference to a saturated calomel electrode that is more negative than -300mV. The bath may contain as acids sulphuric, hydrochloric, hydrobromic, phosphoric, nitric, toluene sulphonic and naphthylene disulphonic acids and alkali-metal halides such as potassium iodide and complexing agents such as thiosemicarbazide and thiourea may also be present.
Patent GB-1058228-A (GB)
Title: Suspension means for swings
Inventor: KREISEL-KILSTOCK KURT
IPC: A63G9/12
Filed: 1963-11-01
Abstract: A clamp comprises two parts 1, 2 arranged to be secured together so as to embrace and clamp the top bars B of a hingedly connected swing frame, the lower part 2 having a nylon lined aperture 13 to receive the top hook or link of a seat chain, rod or the like.
Patent GB-938566-A (GB)
Title: 18-oxygenated pregnanes and process for their manufacture
IPC: C07J75/00
Filed: 1959-12-21
Abstract: The invention comprises D 20:N-18,20-iminopregnenes, particularly those that contain a free or functionally converted hydroxyl or oxo group in the 3-position and which may contain a further double bond in the ring system, e.g. D 4,20:N-3-oxo-18,20-iminopregnadiene, together with a process for the manufacture of an 18-oxygenated pregnane by treating a D 20:N-18,20-iminopregnene with nitrous acid, and if desired reacting the 18-hydroxy-20-oxo-pregnane so obtained with an oxidising agent and/or if desired converting an 18,20-dioxopregnane or a 20-oxopregnane-18-acid so obtained into a functional derivative thereof.  The 18-hydroxy-20-oxopregnane may also exist in the tautomeric form 18,20-oxido-20-hydroxy pregnane and the 18,20-oxido-20 acyloxy compounds are obtained upon esterification.  A detailed example illustrates the conversion of D 4,20:N-3-oxo-18,20-imino-pregnadiene to D 4-3-oxo-18,20-oxido-20-hydroxypregnene or 18-hydroxyprogesterone, its oxidation to 18-oxoprogesterone and its esterification to D 4-3-oxo-18,20-oxido-20-acetoxy pregnene.  The D 20:N-18,20-iminopregnene compounds which may contain in the ring system, particularly in the 3- and 11-positions, free or functionally converted hydroxy and oxo groups, amino groups, e.g. methylamino, and also additional double bonds, particularly in the 1:2, 4:5, 5:6, or 9:11 positions, are obtained by halogenating an 18,20- iminopregnane compound and treating the N-halo compound so obtained with a base or by introducing the 20:N double bond by direct dehydrogenation, e.g. with mercuric acetate.  Thus D 4,20:N-3-oxo-18,20-iminopregnadiene is prepared from conessine by cyanogen bromide treatment to give N,N1-dicyano-conimine, treatment of the latter with ethanolic KOH to give conimine, chlorination of conimine with N-chlorosuccinimide and reaction of the resulting N,N1-dichloro-conimine with sodium methylate in methanol to give D 4,20:N-3-imino-18,20-iminopregnadiene which is then hydrolysed with acid.  Specification 910,768 is referred to.
Patent GB-889566-A (GB)
Title: Foundry patterns and a method of making and mounting them
IPC: B22C7/04
Filed: 1959-12-22
Abstract: 889,566. Moulding patterns. MALLEABLE RESEARCH & DEVELOPMENT FOUNDATION. Dec. 22, 1959 [Jan. 21, 1959], No. 43471/59. Class 87(2). [Also in Group XXII] A process for forming a production pattern comprises forming cope and drag negative sections 31, 32, with mating faces 35, 36, from a master pattern, providing a template 50 of predetermined size and outline and a peripheral frame-locating edge, preferably made by casting in the pattern-receiving pocket 41 of the mould frame 40, Fig. 22 then placing a removable frame 55, Fig. 7, around the template and locating a first negative section or sections 31 therein and backing them with a castable material 66 such as synthetic resin, plaster, cement, a low melting point metal or alloy, to form a negative unit 71, Fig. 10, This is then positioned in the removable frame 55, Fig. 12, and the second negative element or elements positioned therein with their mating faces in contact with the mating faces of the first negative sections, and backed-up by castable material 66 to form the second negative unit 72, Fig. 14. Each negative unit is then placed in a frame 55, Fig. 16, and a positive unit formed by casting in pattern material, Fig. 18, comprising a first layer 75 of a thermosetting resin, e.g, epoxy resin, a back-up 76 of resin mixed with granular aluminium, and a final layer 75a of thermosetting resin passed through a hole in a glass plate 60a The template may be dispensed with, the frame being accurately set up on a locating surface.
Patent GB-995665-A (GB)
Title: Improvements in or relating to guiding mechanisms
Inventor: BRIGGS MICHAEL
IPC: A42B3/22
Filed: 1962-11-19
Abstract: 995,665. Hinges and pivots. HELMETS Ltd., AND BEDFORD PRODUCTS & LIGHT ENGINEERING CO. Ltd. Feb. 19, 1964 [Nov. 19, 1962], No. 43640/62. Heading E2F. [Also in Divisions A3 and F2] A mechanism for guiding a first member along a non-circular curved path relative to a second member comprises a first cam surface and a second cam follower fixed relative to the first member, co-operating respectively with a first cam follower and a second cam surface fixed relative to the second member, so disposed that the first member can move relative to the second member only along the prescribed path. The mechanism allows a transparent visor 14 to closely follow the contour of a crash helmet 10 as it is raised or lowered. The visor 14 is attached by screws or press-studs 17 to a band 16 each end of which is adjustably secured to a plate 19 by a screw 22 and nut 24 and a tongue 20 on the plate 19 which engages a slot 21 in the band 16. A pin 32 and a slot 34 of each plate 19 respectively engage a slot 27 and a screw 38 of a boss 25 secured to the helmet by grommets 26. A rubber washer (not shown) may be placed beneath an inwardly facing flange 25a of each boss 25. To hold the visor in one of three positions, one of three holes 41, 42, 43, in each plate 19 is engaged by a ball 44 urged outwardly by a spring 45. The mechanism may also be used, e.g. for supporting a machine guard, or a folding canopy on a vehicle.
Patent GB-1510611-A (GB)
Title: Vehicle with disc brake
IPC: F16D65/28
Filed: 1976-10-21
Abstract: 1510611 Spot-type disc brakes KOMBINAT FORTSCHRITT LANDMASCHINEN NEUSTADT IN SACHSEN VEB 21 Oct 1976 [27 Oct 1975] 43681/76 Heading F2E [Also in Division B7] A double disc element 6 is disposed within a housing 5 and mounted concentrically with the input shaft 4 of spur gearing 3 to be rotatable therewith, a cam-actuating shaft 14 is rotatably supported on a cover 12 for the housing, two brake shoes 22, 23, each provided with a brake lining 20 or 21 are disposed symmetrically relative to the cam 19, each shoe is supported from the cover 12 on a respective axle 24 or 25 to be pivotably displaceable with its axle by the cam 19, the axles 24, 25 extending substantially parallel to the cam-actuating shaft 14 and being spaced from respective friction surfaces 7, 8 of the double disc element 6, and the spur gearing 3 is rotated so as to rotate, indirectly, a vehicle wheel (not shown) by a drive motor 2 through its output shaft 9. The components of the brake are thus protected against dirt, &c., but are easily demountable. Preferably each shoe has a return spring 31 or 32 protruding through the lower end of the shoe axle and anchored at the other end by a lower plate securing screw 27 or 28. Motor 2 may be hydraulic, and the vehicle, agricultural.
Patent GB-1431474-A (GB)
Title: Radar systens
IPC: G01S13/62
Filed: 1973-09-18
Abstract: 1431474 Radar JAMES SCOTT (ELECTRONIC ENG) Ltd 30 July 1974 [18 Sept 1973] 43742/73 Addition to 1289496 Heading H4D In a C.W. Doppler radar including a microwave generator comprising a Gunn effect device mounted in a resonant cavity, two mixer diodes are supplied with received signals which are in phase, and are also supplied with local oscillator signals from the generator which are in quadrature, said phase relationships being obtained by suitably positioning the diodes and the Gunn effect device relative to each other. An indication of the direction of a target is derived from the output signals of the diodes. In a first embodiment a resonant cavity 2, Fig. 1, comprises a portion of rectangular cross-section waveguide which has a short-circuiting plate 6 at one end, and which extends into a horn aerial 1 at the other end. A Gunn effect device 3 is mounted in the cavity 2 at a distance of n#/2 from the plate 6 (n = an integer, # = the operating wavelength). Spaced on either side of the device 3 are Schottky diodes 8, 9, their respective distances R1, R2 from said device being such that R1-R2=#/4 and R1+R2=m# (m= an integer). If m=1, R1=5#/8 and R2= 3#/8. The signals derived from the diodes may be processed by apparatus of the kind described in Specification 1,254,443. In another embodiment the Gunn effect device 3, Fig. 3, is housed in a lateral cavity 14, having a short-circuiting plate 15 at one end, and connected at the other end to the main cavity 2 by an H- or E-plane junction. The plate 6 may be replaced by a matched load.  Reference has been directed by the Comptroller to Specification 1,214,833.
Patent GB-1235546-A (GB)
Title: An improved objective lens for a camera
IPC: G03B7/16
Filed: 1968-09-16
Abstract: 1,235,546. Exposure control. NIPPON KOGAKU K. K. Sept.16, 1968 [Sept.16, 1967], No.43867/68. Heading G2A. A focusing ring and an aperture-setting ring can be coupled together so that an indicator on one reads against a flash guide number scale on the other. As shown, the lens barrel 1 slides axially within a fixed mounting cylinder 3, under the control of a focusing ring 5. Mounted on the outside of cylinder 3 is an aperture-setting ring 17, which carries on its outer periphery both an aperture sclae (19), Fig. 3 (not shown) and a flash guide number scale 18. Ring 5 carries a clutch member 12, which is movable in an axial direction, and has a finger 14 extending therefrom. The clutch member also carries an arm 15 having a cutout 16 at one end, the cut-out being so located that it moves over the scale 18, and thus acts as an indicator. On its inner surface the aperture ring 17 has a series of grooves 20. Rings 5 and 17 can normally be rotated independently. However, when flash illumination is required, ring 5 is first rotated until indicator 16 registers with the selected guide number on scale 18, and then rings 5 and 17 are coupled together. This is effected by moving member 12, 15 axially so that the finger 14 enters the correspondingly located groove 20 in ring 17. Thus ring 17 now rotates together with ring 5 when the latter is used for focusing.
Patent GB-1061283-A (GB)
Title: Method and apparatus for manufacturing a tubular body
IPC: F16L9/16
Filed: 1963-11-06
Abstract: 1,061,283. Making containers. REYNOLDS METAL CO. Nov. 6, 1963 [Nov. 23. 1962], No. 43883/63. Heading F2P. A method of making a container comprises the steps of helically rotating and axially advancing container material on a mandrel, while providing a cushion of fluid between the external surface of said mandrel and the internal surface of said container material, to facilitate movement of said container material relative to said mandrel. A hollow mandrel of porous material such as porous bronze or iron or a perforated hollow mandrel may be used. As described lining material, e.g. paper-backed aluminium-containing metallic foil is helically wound on a hollow mandrel 12 rotated by a crossed belt 40, with the metallic surface innermost. The edge of the strip is coated with adhesive from applicator 26. Container body material 29, having an adhesived inner surface is then helically wound on the mandrel and a paper-backed metallic foil 35 with the metallic face forming the outer surface is finally wound on the container. The fluid enters the mandrel from pipe 18. A knife 52 cuts the container body stock into desired lengths. The mandrel may also be vibrated to further reduce friction.
Patent GB-1076335-A (GB)
Title: Radioactive ceramic source and method of manufacture
Inventor: MEYER GERARD
IPC: H01L35/22
Filed: 1965-10-18
Abstract: Radioactive strontium fluorapatite 3Sr3(PO4)2.SrF2 containing Sr-90 is formed by suspending radioactive strontium carbonate in water, adding HF to precipitate strontium fluoride, diluting the solution, adding phosphoric acid and then adjusting the pH to 7-9.5 to precipitate strontium phosphate, filtering the precipitate and heating at 600 DEG -1000 DEG  C. to form strontium fluorapatite.  The compound is crushed, compacted and sintered to produce a radioactive ceramic source for use as a heat source in an electrical energy generator.
Patent GB-1181265-A (GB)
Title: Roller Drafting System for Spinning Machinery
IPC: D01H5/22
Filed: 1967-09-28
Abstract: 1,181,265. Roller drafting. TOYODA AUTOMATIC LOOM WORKS Ltd. 28 Sept., 1967 [12 Oct., 1966], No. 44294/67. Heading D1D. In a drafting arrangement e.g. for a drawing frame the front top roller 2 is smaller than the front bottom roller 1 and the second top roller 4 is smaller than rollers 2 and 3 and the rollers 1, 2, 3, 4, 5 of the main zone are arranged so that the line PQ intersects the line RS, the nip a is below tangent bf and the tangent bc is substantially perpendicular to the line RS. Thus the sliver contacts an arc at the input end of the drafting zone but passes through rollers 1, 2 at right angles to their line of centres. For slivers of different staple length the position of roller 4 is adjustable about centre Q. As illustrated in Fig. 5, not shown, roller 7 may be replaced by a smaller roller and the lines of centres 6, 7 and 8, 9 arranged at an angle to each other and at an angle to line. PQ.
Patent GB-1071816-A (GB)
Title: Polymerisable bis-amides
Inventor: GAZZARD EDWARD GEORGE
IPC: C08F24/00
Filed: 1964-10-30
Abstract: The invention comprises amides of formula <FORM:1071816/C2/1> wherein R0 and R are A, halogen or hydrocarbyl, R1 is H or hydrocarbyl and X is the residue of an aromatic or saturated aliphatic dicarboxylic acid.  These amides are made by reacting together the appropriate amines and dicarboxylic acids, or amide-forming derivatives of the latter.ALSO:Compounds of formula <FORM:1071816/C3/1> wherein R0 and R are H, halogen or hydrocarbyl, R1 is H or hydrocarbyl and X is the residue of an aromatic or saturated aliphatic dicarboxylic acid, are polymerized (optionally with a vinyl ether comonomer such as acrolein tetramer) in presence of a known vinyl ether polymerization catalyst, e.g. BF3-etherate. Other vinyl ether comonomers, and catalysts, are listed.  Polymerization may be effected under conditions such that a foam-forming gas, e.g. CFCl3, is generated; other ingredients present in examples are an oxyalkylenesiloxane, polypropylene glycol (mol. wt. 425) and diphenylol propane.
Patent GB-1287630-A (GB)
Title: Hydraulic pump
IPC: F04B1/32
Filed: 1969-09-08
Abstract: 1287630 Pump servo control SUNDSTRAND CORP 8 Sept 1969 [11 Oct 1968] 44536/69 Heading G3P During normal operation of pump 10, the delivery pressure in line 68 is maintained constant by valve 60 having a spool 78 movable against spring 87 by the delivery pressure to connect swash-plate control servomotor 62 to the delivery line or to exhaust line 76. Servopiston 64 movement is fed back to spool 78 via fluid link 103, a derivative effect being introduced by apertured piston 98. During start-up, however, or whenever the pump is to be depressurized, solenoid 121a is energized to position spool 128 such that the pump delivery pressure is admitted to drain passage 76 and servomotor 62 thereby rendering spool 78 ineffective and reducing delivery pressure. Optionally, spool 128 can simultaneously pressurize line 162 to close blocking valve 151, 152 in the delivery line. The pump inlet is supplied from auxiliary pump 36 and has a branch 48 receiving fluid from a casing relief valve 50. A check valve 170 is provided in the delivery line.
Patent GB-1358129-A (GB)
Title: Cable supporting device
IPC: H02G7/02
Filed: 1972-09-27
Abstract: 1358129 Cable clamp RELIABLE ELECTRIC CO 27 Sept 1972 [30 Sept 1971] 44530/72 Heading H2C [Also in Division E2] A gripper for round cable comprises a shell 4 in which there is a fixed shoe 6 and a slidable, serrated, wedge-shaped shoe 8, both of plastics such as polyformaldehyde resin. The gripper has a loop 10, 18 by means of which it is supported in use.
Patent GB-1407619-A (GB)
Title: Electrical signal transmission systems
IPC: G08G1/081
Filed: 1972-09-29
Abstract: 1407619 Traffic light control systems SIEMENS AG 29 Sept 1972 [30 Sept 1971] 45016/72 Headings G4H and G4Q A signal transmission system comprises a central station I, XI, XXI which transmits control pulse trains to remote stations Kr 1 , Kr 11 , Kr 21 , a common timing pulse generator Tg in the central station and a control channel L 1 , L 11 , L 21  for each remote station, the control pulses having an effect on the remote stations dependent on their time position within cyclically repeated pulse groups generated by the pulse generator. The system enables the control of traffic lights at road intersections which form the remote stations, each intersection including four pairs of red and green lights in units Sg1-Sg4. The central station includes a computer Z provided with a programmer Pg which generates sequences of four control pulses. When the pulse generator Tg is operated a transmitter S transmits sequences of eight timing pulses to receivers E1, E1 11 , E1 21  which cause switch arms e1 1 , e1 2 , &c. to step once for each timing pulse. If a control pulse is received via a transmitter such as S2 1  simultaneously with a timing pulse, a contact e2 1  is closed by a receiver E2 1  and that bi-stable relay S1-S4 selected by the instantaneous position of the arm e1 1  is operated. The relays control switches S1-S4 to energize a red or green light in the units Sg1-Sg4. Monitoring relays K1- K8 having contacts k1-k8 supply an acknowledgement signal via a transmitter S3 1  and a receiver E3 1  to the central station. If the operated light does not correspond to that commanded by the programmer Pg, a contact e3 1  remains closed when a contact p is closed by a relay P so that a relay A is energized to close its contact a and operate an alarm bell W. Different frequencies are used for the control pulses, the timing pulses and the acknowledgement signals. In a modification the timing signals consist of 4-bit words to define sequences of six successive time slots. The timing signals are decoded at the remote intersections and enable the control pulses to control nine groups of three traffic lights at each intersection.
Patent GB-1168002-A (GB)
Title: Propellant Injector
Inventor: MACMUNN JAMES LAMONT
IPC: B23P11/02
Filed: 1967-10-04
Abstract: 1, 168, 002. Rocket engine -propellant injector; fuel injections. NORTH AMERICAN ROCKWELL CORP. Oct.4, 1967 [Oct. 4, 1966], No.45282/67. Headings FIB, F1J and F1L. A fuel or propellant injector for example of a rocket engine or a Diesel engine comprises a main body 12 having a circular boss 14 protruding therefrom, the boss being formed with an annular recess 18, a ring member 40 being tightly secured on the boss to define with the annular recess, a manifold chamber 47 from which a plurality of jet openings extend through either the ring or the boss or through both thereof. The injector shown is the propellant injector of a rocket unit, the body part 12 being secured to the combustion chamber wall 13 and forming the end wall of the combustion chamber. Bores 25, 27 are formed in the circular boss portion 14 and communicate with the manifold chamber 47, the bores opening into an annular recess 17 formed in the face of the boss portion. Bores 48, 49 are formed in the ring member 40 and also communicate with the manifold chamber 47. A bore 30 is formed in the body part 12 and communicates with the chamber 47, fuel supplied through bore 30 to the chamber 47 discharging through bores 25, 27, 48, 49 into the combustion chamber, that discharging through bores 48, 49 flowing along the combustion chamber wall 13 and serving as a coolant. Further bores 24, 26 are formed in the circular portion of the boss 14 and communicate with a bore 20, to which propellant such as oxidizer, is supplied, the oxidizer discharging through bores 24, 26 into the combustion chamber. The jets of oxidizer from the bores 24, 26 impinge on the jets of fuel from the bores 25, 27 and so thorough mixing is ensured. The ring member 40 is received within an annular recess 50, Fig. 2, formed in the body part 12. The ring is assembled by a shrink process so as to ensure secure fitting. An aperture 57 is provided for a pressure sensing device, and a pin 55 is provided for locating purposes.
Patent GB-1517034-A (GB)
Title: Probes for use in determining gas concentrations
IPC: G01N27/404
Filed: 1975-10-31
Abstract: 1517034 Electro-chemical gas concentration probe GEORGE KENT Ltd 29 Oct 1976 [31 Oct 1975] 45453/75 Heading G1N A probe for determining gas in a fluid has a sensor producing an electrical current signal proportional to gas concentration and circuitry for converting the current signal to a signal for connection to a circuit of high input impedance mounted on and in the probe body respectively. Temperature compensation may be provided. The probe output is suitable for connection to a pH meter.
Patent GB-986897-A (GB)
Title: Improvements relating to hall effect apparatus
Inventor: DREW ANTHONY JOHN
IPC: H03C1/48
Filed: 1961-12-20
Abstract: 986, 897. Electric analog calculating. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 5, 1962 [Dec. 20, 1961], No. 45636/61. Heading G4G. [Also in Divisions H1 and H3] A Hall effect modulator comprises a ferrite or other magnetic core energizable to produce within an enclosed Hall effect prism two perpendicular magnetic fields of quadrature phase forming a rotating magnetic field. Also two pairs of input electrodes at right angles of the Hall prism are supplied with quadrature phase A.C. to form a rotating of electric field, the output electrodes producing a modulation product. The core may be toroidal with opposite pairs of toroidal coil or coils with radial magnetic axes. Further, the quadrature coils may overlap and the core may have salient poles, with each coil in two parts on opposite sides of the pole, or wholly mounted on the salient pole. Alternatively the core may be a square with salient poles and a pair of quadrature phase coils mounted at each side of one pair of oppositely facing salient poles and so arranged that resultant quadrature phase magnetic fields are produced, at right angles. Alternatively four coils arranged as in Fig. 7, energized in common by quadrature phase sources X, Y may be used. Alternatively, two coils may be wound at right angles on the Hall prism, a surrounding ferrite casing providing a low reluctance return path for the magnetic flux. The two electrical inputs may be applied to two pairs of parallel electrodes along the edges of a Hall cube and the two inputs may each be shunted by a potentiometer, with adjustable tappings connected to a common output electrode of the Hall prism, to balance out any constant electrical output. Similarly, magnetic balance may be arranged by connecting two conductive loops to one output electrode surrounding the prism at right angles, and having resistances with adjustable tappings connected together and to a common output terminal of the modulator. Or one output electrode may be connected to an output rod located in a hole drilled through the prism and the other output electrode connected to a conductive sheath surrounding this rod, the rod and sheath forming the modulator output terminals. Specification 941,619 is referred to.