baber/WOPTO huggingface dataset:
Patent GB-1497145-A (GB)
Title: Method and apparatus for liquid developing in copying machines
IPC: G03D5/00
Filed: 1975-03-24
Abstract: 1497145 Developing apparatus LA CELLOPHANE 24 March 1975 [2 April 1974 10 Jan 1975 17 Jan 1975]. 12190/75 Headings G2H and G2X Electro-photographic or diazo latent images on copy material 8 are developed by liquid issuing by capillary action from openings in the base of supply vessel 6, as the copy material is fed past the underside of the vessel and held against it only by capillary action. If the copier is electro-photographic, the copy material may be charged and exposed by apparatus in travelling body 10, which is reciprocated in synchronism with the movement of vessel 6 in and out of tank 1, and moves the copy material during its return stroke after imaging. Preferably the openings in the supply vessel are located in one or more grooves, so as to homogenise the developer across the copy material.
Patent GB-827892-A (GB)
Title: Marine propulsive power transmission gear with controllable pitch propeller actuating mechanism
IPC: B63H3/04
Filed: 1957-04-15
Abstract: 827,892. Differential gearing; converting rotary to reciprocating motion. HINDMARCH, T. April 15, 1958 [April 15, 1957], No. 12266/57. Classes 80 (1) and 80 (2). [Also in Group XXXIII] The shaft from a prime mover is coupled at A to transmit power via a clutch B and pinion C to a wheel D secured to the shaft 13 which drives a screw propeller (see Group XXXIII) the pitch of the blades of which is controlled by a rod 10 actuated through differential gearing by a motor 45 or emergency handwheel 46. In the embodiment of Fig. 4, the operating-rod 10 is prevented from rotating by a key 34 and has fixed thereto a screwed member 33 in a nut 35 having a gear 36 which drives gear 37 and hence carrier 38 of the differential gear, and a gear 39 which drives gear 40 and hence a gear 41 at twice the speed of the carrier 38. A gear 42, similar to gear 41, is normally stationary but when this is rotated by means of worm-wneel 43 and worm 44 driven by said motor, the nut 35 rotates relative to the propeller shaft 13 and causes fore or aft movement of the rod 10 to alter the pitch of the propeller blades. In the case where the pitch is altered by rotary movement of the operating rod, the key 34 is removed and the nut 35 fixed to said rod, or the gearing shown in Figs. 7 and 8 may be used. Here a pinion 60 attached to the propeller shaft 13 meshes with a pinion 61 rotatably connected with a sun pinion 62 meshing with planet pinions 63 which in turn mesh with an equal number of like planet pinions 64. The planet pinions are carried on pins 65 on a carrier 66 free to rotate on a stationary pin 67. The planet carrier 66 has teeth 68 in mesh with a pinion 69 rotatably connected with the operating rod 10. Meshing with planet pinions 64 is a sun pinion 70 which is rotatably connected to a pinion 71 in mesh with a pinion 72 connected with the above-mentioned motor 45. Gear ratios are such that when the propeller shaft 13 and operating rod 10 will rotate together at the same speed with no rotation of the sun pinion 70, but rotation of the pinion 70 will cause rotation of the rod 10 relative to the shaft 13 and so alter the pitch of the propeller blades.
Patent GB-1184613-A (GB)
Title: Planetary Speed Change Transmission for Machine Tool Feed Drives.
IPC: F16H3/66
Filed: 1967-03-16
Abstract: 1,184,613. Epicyclic gearing. GIDDINGS & LEWIS Inc. 16 March, 1967 [6 April, 1966], No. 12370/67. Heading F2D. A multistage epicyclic gear, particularly for the feed drive of a headstock, saddle, table, or end support lead screw of a horizontal boring, drilling and milling machine, comprises three stages I-III connected in series and respectively providing three, four and three ratios to provide a total of thirty-six ratios in a first band of 24 closely spaced ratios and a second, lower output spaced, band of 12 more widely spaced ratios. Stage I comprises, freely journalled on an input carrier 24, planets 30, 45, 54 meshing suns 34, 46, 52 and rings 29, 44, 55, the suns 34, 46 being fast on a stage I output shaft 35, the rings 44, 55 being fast together, and the rings 29, 44 and the sun 52 being respectively brakable at 36, 48, 56 to provide ratios through sun-ring trains 30, 34, 29 and 45, 46, 44 and compounded trains 45, 46, 44, 54, 52, 55. Stage II comprises, journalled on a free carrier 66, planets 64, 70 meshing suns 62, 69 fast on the stage I output shaft 35 and rings 65, 71 to form two sun-ring trains, and planets 75, 81 meshing suns 76, 84 fast on a stage II output shaft 78 and rings 74, 80 to form two further sun-ring trains, the rings 65, 71 and 74, 80 being brakable, in pairs, at 68, 72 and 79, 85 to provide pairs of ratios through series pairs of sun-ring trains. Stage III comprises, freely journalled on a carrier 90, planets 88, 95, 100 meshing suns 86, 94, 99 fast on the stage II output shaft 78 and rings 91, 96 and a stage III output ring 101, the carrier being brakable at 104 to provide reverse ratio through the sun-ring train 100, 99, 101, and the rings 91, 96 being brakable at 92, 98 to provide reverse ratios through compounded trains 88, 86, 91, 100, 99, 101 and 95, 94, 96, 100, 99, 101. The epicyclic brakes are disengaged by laminated leaf springs (41) (Fig. 2, not shown) and engaged by fluid pressure under the control of solenoid valves SV15-SV26. The stationary housings are axially stacked and secured together by through bolts (22). The stage I input carrier 24 is selectably coupled by a solenoid valve-controlled hydraulically actuated disc clutch device 16 to a reversible feed drive motor M or a reversible headstock spindle drive motor HM.
Patent GB-944930-A (GB)
Title: Improvements in or relating to electromagnetic wave apparatus
Inventor: LINES ALBERT WALTER
IPC: H01P5/16
Filed: 1953-05-04
Abstract: 944,930. Radar ; R.F. couplings ; combined radio receiving and transmitting systems ; radio receiving systems. MINISTER OF AVIATION. April 23, 1954 [May 4, 1953], No. 12392/53. Headings H4A, H4D and H4L. [Also in Divisions G1 and H1] The invention utilizes the phenomenon that if two prisms 1, 5 (Fig. 5) are placed sufficiently near each other an electromagnetic wave A, which would normally be totally reflected by the prism 1, is divided into a transmitted component B and a reflected component C, the relative amplitudes of the components depending on the spacing between the prisms. According to the invention the emitting and receiving surfaces of a pair of prisms for use at wavelengths between 6 mm. and 0.1 mm. are provided with matching means to prevent unwanted reflections at these surfaces. The matching means may comprise a quarter-wavelength layer of material of dielectric constant ##, where # is the dielectric constant of the prism, or it may comprise quarterwavelength slots in the emitting or receiving surface. The prisms may be of perspex, fused silica or polystyrene. Fig. 10 shows a balanced mixer in which the prisms 1, 5 are so spaced that the signal A is equally divided into beams B and C wihch are fed to crystal mixers 22, 21; the local oscillator beam D is similarly equally divided. It is shown mathematically that this arrangement gives cancellation of local oscillator noise due to the phase difference of # radians which exists between the inputs to the two mixers 21, 22. Fig. 11 shows an arrangement for a TR unit based on an assembly of hybrid units, i.e. pairs of prisms arranged to give equal reflection and transmission. A signal from a local oscillator 31 is fed by a horn 32 through a phase-correcting lens 33 to a hybrid unit 24 which divides the signal into two equal parts: the transmitted part is further divided by hybrid unit 26, half being transmitted to an automatic frequency control mixer 46 and the other half being reflected to a prism 28 which reflects it into a second A.F.C. mixer 44; the reflected part is divided by hybrid unit 25, half being transmitted to a signal mixer 36 and the other half being reflected to a prism 27 which reflects it into a second signal mixer 37. The received signal is divided by hybrid unit 25 into two parts which are fed to the two signal mixers. The transmitter 52 feeds a directive feed unit 54 which transmits most of the power but reflects some of it into hybrid unit 26 and so to the two A.F.C. mixers. Specification 689,179 is referred to.
Patent GB-625341-A (GB)
Title: Improvements in and relating to electrical multi-circuit breakers
IPC: H01H71/10
Filed: 1947-05-08
Abstract: 625,341. Automatic circuit breakers. COMBI, A. May 8, 1947, No. 12447. [Class 38(v)] A number of toggle-lever circuit-breakers are coupled together to form a multicircuit unit which can be collectively opened by tripping of any one breaker. As shown, the couplings comprise insulating sleeves o fitting loosely over the extended intermediate pivot pins n of toggle levers d, e which are normally constrained into locking position by springs. The levers d are connected to members f which are secured to a common handle l, and the levers e are each pivoted to a 'contactcarrying lever b held closed against spring- action. Any of the toggles may be broken by thermal means (not shown) or by an electromagnetically - actuated armature lever j, k. The lost motion between pins n and sleeves o ensures that initially there is no additional resistance to tripping of the overloaded breaker, the spring acting on the arm b of that breaker being thereafter strong enough to break the toggles of the remaining breakers. The circuitbreakers may alternatively be arranged one behind the other, in which case the pivot pins n are received in slots in a coupling bar (Fig. 5, not shown).
Patent GB-723959-A (GB)
Title: Improvements in and relating to the preparation of highly adsorbent and water-absorbent artificial fibres
IPC: A61L15/18
Filed: 1949-12-30
Abstract: Highly adsorbent and water-absorbent artificial fibres, suitable for use in making bandage and like material, are obtained by incorporating in a spinning solution finely divided silica gel which has been treated with an emulsifier, preferably one which is stable against alkali, and then extruding the solution to form the desired fibres.  The spinning solution may be viscose, or a solution of cellulose.
Patent GB-257210-A (GB)
Title: Yarn reel
IPC: B65H49/30
Filed: 1925-08-07
Abstract: 257,210. Br³gger, X. Aug. 7, 1925. Skein holders and swifts.-In yarn reels of adjustable diameter, the successive spokes 3a, 3b, 3c, Fig. 4, are pivoted alternately on the inside and outside of the flanges 1 in order to obtain a wider angle of movement for the spokes and a corresponding greater variation in diameter of the reel. Guiding and holding plates 4, 4<1>, Fig. 1, have arms 5 for adjusting the spokes, and a ring- shaped runner a having a wavy ball race 11 facilitates adjustment. A nut 7 clamps the plates 4, 4<1> and race 11 together.
Patent GB-762312-A (GB)
Title: Radio receivers
Inventor: FAIRHURST HAROLD ALFRED
IPC: H03D11/02
Filed: 1954-04-30
Abstract: 762,312. Super-regenerative receivers. MURPHY RADIA, Ltd. April 26, 1955 [April 30, 1954], No. 12616/54. Class 40(5) A self quench super-regenerative amplifier 1, 2, 3, 4 feeds its quench frequency output to a circuit 7 tuned to a frequency higher than the quench frequency such that the non-linearity of the frequency response of the tuned circuit compensates for the non-linearity of the relation between quench frequency and signal amplitude. The most accurate compensation may be obtained if the circuit is tuned approximately to the third harmonic of the mean quench frequency, final adjustment being effected by varying the quench frequency or the tuning of circuit 7.
Patent GB-1428332-A (GB)
Title: Method and apparatus for extruding wire-reinforced thermoplastics tubing
IPC: B29C48/90
Filed: 1974-03-21
Abstract: 1428332 Extruding helically reinforced tubing A TAMBORINI and G TAMBORINI 21 March 1974 [29 May 1973] 12664/74 Heading B5A [Also in Division F2] In an extrusion of a pipe of thermoplastics material having internally of its wall a reinforcing coil of metal wire 12<SP>1</SP>, the coil is delivered to an extrusion outlet passage 4, and without rotation about its axis, by the internal or external thread of a rotated threaded member 6. The extrusion passage 4 is defined between a stationary die 1b, and a stationary mandrel 13 which is of smaller diameter than the internal diameter of the coil so that the thermoplastics is applied to both the exterior and interior of the coil 12. For thicker wire, the threaded member may comprise an internally threaded sleeve, Fig. 4 (not shown), rotated by a chain and wheel drive from a geared motor, and provided with the threads only along a short portion of its length adjacent the extrusion outlet passage. For thinner wire, Fig. 2, the threaded member 6 comprises an externally threaded sleeve rotating within a stationary sleeve 8 and a bearing 9 and, at a bearing 18, about an upstream extension of the mandrel 13 attaching to a fixed support 15. The member 6 is rotated at a variable speed by the head of a coiler (not shown) which continuously forms the wire 12 as a coil at 8a about the upstream and smaller diameter unthreaded end of the member 6. The coil 12<SP>1</SP> is delivered from the member 6 to the extrusion passage 4, along an annular passage equal to the thickness of the wire 12, and defined between the bearing 9 and an increased diameter portion of the mandrel 13. An electric heater plug is formed in a bore 20 of the mandrel 13. The extruded pipe is drawn from the die by rollers located along a cooling channel.
Patent GB-547378-A (GB)
Title: Improvements in or relating to means for removing fire bombs and the like
IPC: A62C3/06
Filed: 1941-10-02
Abstract: 547,378. Scoop for incendiary bombs. HILL, H. A. Oct. 2, 1941, No. 12735. [Class 6 (ii)] An inverted openmouthed casing A is supported at the end of a handle K and encloses a pair of members B, C substantially semicircular in cross-section, and closed at their ends, and one or both of these may be raised and lowered so as to enclose an incendiary bomb X or the like, when placed over said bomb. Cables G extend from lugs F on the members over pulleys H, and are operated by a ratchet device on the handle, so that they raise or lower the members B, C which are pivoted on bolts D secured to the ends of the casing A. In a modification, one only of the members is movable, and is operated by levers from the handle K.
Patent GB-759820-A (GB)
Title: Continuously variable speed gears
IPC: F16H15/38
Filed: 1954-09-03
Abstract: 759,820. Variable-speed gearing. RENNERFELT, S. B. Sept. 3, 1953, No. 12806/55. Divided out of 759,773. Drawings to Specification. Class 80(2) The arrangements described are the same as those described in Specification 759,773, but the claims differ.
Patent GB-647139-A (GB)
Title: Improved process for effecting the adhesion of two or more plies of fabric to form a laminated sheet
IPC: D06M17/02
Filed: 1947-05-13
Abstract: 647,139. Compound sheet materials. FELIX, A., HORN, J. J., HORN, M., and HORN, H. May 13, 1947, No. 12901. [Class 140] Fabric plies are united to make a stiffened material by placing between adjacent plies of the fabric a sheet or film of cellulose acetate or other cellulose derivative containing a solvent plasticizer and hot-pressing without the use of a volatile solvent or other liquid, the solvent plasticizer being present in such quantity as will effect complete or partial disintegration of the sheet and yield a permeable product. The fabric plies may be of wool, rayon, linen, cotton, or felt. The solvent plasticizer is one which will dissolve or suspend the cellulose derivative on the application of heat and pressure, triacetin, tributyl phosphate, and diethyl phthalate being specified.
Patent GB-735798-A (GB)
Title: Colouring matters of the aza(3)-benzanthrone series and their process of preparation
Filed: 1953-05-08
Abstract: Dyes of the formula <FORM:0735798/IV (c)/1> where Z denotes hydrogen, chlorine, bromine, methyl, or sulpho, R1 denotes hydrogen, or an aliphatic or acyl radical, R2 denotes hydrogen, or an aliphatic, cycloaliphatic, araliphatic, aromatic, heterocyclic, or azo compound radical, and R1 and R2 may contain one or more sulpho groups, are obtained by condensing, in presence of an acid binding agent, an azo-(3)-benzanthrone of the formula <FORM:0735798/IV (c)/2> where W is chlorine, bromine, or nitro, with a compound of the formula <FORM:0735798/IV (c)/3> The invention also comprises generally products of the first formula above, provided that instead of aromatic radicals generally, R2 represents anthraquinonyl, or, when R1 is an aliphatic or acyl radical, it may represent a mono- or binuclear aromatic radical.  The products may be sulphonated, or where Z is halogen, reacted with alkali sulphite, or saponified. The products dye cotton, wool, silk, regenerated cellulose, nylon, and polyamide fibres.  In examples, 1 - carbethoxy - 2 - methyl - 6 - brom - aza(3) - benzanthrone-4-sulphonic acid is condensed with (1) ammonium hydroxide; (2) benzamide; (3) aminocyclohexane; (4) 2-aminopyridine; (5) the compound of the formula <FORM:0735798/IV (c)/4> (6) methylaniline.  Also in examples, 1-carbethoxy or carbomethoxy-2,4-dimethyl-6-brom-aza(3)-benzanthrone is condensed with (7) 4-methylbenzene - 1 - sulphonamide; (8) amylamine; (9) aniline; (10) sulphanilic acid; (10) 2 - amino - 1,11 - diphenyl; (11) 4 - amino - 1,11 - azobenzene; (12) 1 - amino - 3 - nitrobenzene; (12) 4,41-diamino - 1,11 - diphenyl - 2,21 - sulphone; (13) 4,41 - diamino - 1,11 - diphenyl-sulphone, followed in some cases by sulphonation.  In further examples: 1-carbethoxy - 2 - methyl - 4,6 - dichlor- or dibrom-aza(3)-benzanthrone is condensed with (14) benzylamine; (15) 1-amino-4-acetylaminobenzene (followed by reaction with potassium sulphite); (16) 1-aminoanthraquinone; 1-carbomethoxy or carboethoxy-2,4-dimethyl-6-nitro-and chloro-aza(3)-benzanthrone are condensed respectively with (17) anisole, and (18) benzidine, and 1-carbethoxy-2-methyl-6-brom-aza(3)-benzanthrone and its 4-sulphonic acid are condensed respectively with p-phenylene diamine and methylaniline.  A number of other starting materials are listed, and dyeing examples using wool and viscose are given. Specification 715,241 is referred to.
Patent GB-238945-A (GB)
Title: Improvements in and relating to devices for transmitting or reproducing sound
IPC: H04R7/12
Filed: 1924-05-27
Abstract: 238,945. Brown, S. G. May 27, 1924. Diaphragms.-A vibrating element, more particularly for microphones, telephone receivers, and gramophones, comprises a double diaphragm of thin metal in which the interior is open to the atmosphere and one face only is rigidly attached, the attachment being about the centre of that face. One face is caused to vibrate, the other face being fixed about its centre to a casing and having a hole communicating with the atmosphere through the casing. As shown, the faces a, b each have a conical portion and a flat annular portion, their peripheries being united by spinning, welding, &c. The conical portions point in the same direction and the air space between the faces is of uniform thickness. Grooves k may be provided to increase flexibility. In applying the diaphragm to a loud-speaker, a flat portion on the face b is attached to a vibrating reed l, Fig. 4, and a flange f around a central aperture in the face a is fitted tightly within an inwardly projecting portion n of the base-plate m carrying the horn. As applied to a telephone receiver or as a modification of the loud-speaker mounting, the flanged central aperture in the face a is secured' by a collar in a central opening in a disc-like member, the periphery of which is secured against a cylindrical member or sleeve in the casing of the receiver or by a screwed cap or ear-piece. The diaphragm may be made of material otherthan metal.
Patent GB-569982-A (GB)
Title: Improvements in means for automatically controlling the operation of a reciprocatinghydraulic engine
IPC: F15B11/15
Filed: 1943-08-12
Abstract: 569,982. Liquid - pressure engines. CANDY, F. P., and THOMAS, W. D. J. Aug. 12, 1943, No. 13047. [Class 69 (ii)] A liquid-pressure engine for operating a pump, e.g. for closing reagent to a pressure water flow, comprises a primary valve 1 which distributes operating liquid to the engine and also to a secondary valve 8 which in turn controls the supply of liquid for operating the valve 1, and means for regulating the speed of the secondary valve, whereby the engine is governed by the length of pauses between its strokes. As shown, the secondary valve operating liquid passes through a pressure reducing valve 19 and passages 13A, 13B, to the primary valve which controls its passage to throttle devices 15 or 15A and thence to the ends 9 or 9A of the valve 8. The primary valve also receives a main pressure supply 5, 5A and distributes it through a passage 7 or 7A to the engine, the other passage 7A or 7 being connected to exhaust through pipes 6c, 6. In an alternative speed control, the pressure-reducing valve is omitted and variable throttles disposed between the primary and secondary valves. These throttles may be manually or automatically controlled, e.g. by the pressure differences in a venturi tube arranged in the water flow. Specification 542,682 is referred to.
Patent GB-131582-A (GB)
IPC: D03J5/00
Abstract: 131,582. Ter Kuile, H. Aug. 23, 1918. [Convention date]. Weft-feeler arrangements; shuttles.-In an electric feeler arrangement, the cop feeler, comprising a hinged lever 2, is pressed away from the cop, whilst the shuttle is moving, by a spring 3 and is pressed against the cop, when the shuttle is boxed, by means of a spring-actuated bow 5 hinged to a pin on the shuttle box. When the cop is sufficiently emptied, the feeler 2 contacts with the shuttle spindle 9, and a circuit for operating the loom stopping-mechanism is conipleted through contacts 10, 11 on the shuttle and shuttle box. The feeler 2 may be arranged to contact with a contact pin or spring in the shuttle. In the Specification as open to inspection under Sect. 91 (3) (a), the circuit is stated to operate loom parts. This subject-matter does not appear in the Specification as accepted.
Patent GB-895762-A (GB)
Title: Improvements in or relating to weatherproof covers for sports pitches
IPC: E04H15/18
Filed: 1960-04-13
Abstract: 895,762. Protecting sports pitches. INGRAM, G. Feb. 28, 1961 [April 13, 1960], No. 13182/60. Class 132(2) A weatherproof cover for a football pitch comprises a plurality of rectangular strips 10 of rubber or plastic coated fabric or waterproof canvas which are arranged in overlapping relationship and are supported centrally by a stressed cable 13 and trestle 17, the ends of the strips 10 having eyelets secured to pegs 15 in the ground by elastic ropes 16.
Patent GB-278036-A (GB)
Title: An improved method for reducing the self-inductance of electric circuits
IPC: H04B3/16
Filed: 1926-05-25
Abstract: 278,036. General Electric Co., Ltd., and Bartlett, A. C. May 25, 1926. Nentralizing inductance by negative inductance. -A network having the effect of a negative inductance comprises an ordinary resistance r in parallel with a capacity C and a "negative resistance " -r which may, for example, be a dynatron valve. Such a network may be connected in series with a telegraph or telephone circuit having inductance L and resistance R to reduce the inductance thereof and if r and C are chosen so that L=C r<2> the whole combination will have zero inductance and a resistance equal to R + r. Specification 148,995 and 221,393, [both in Class 40 (iv), Telephones &c.], are referred to.