baber/WOPTO huggingface dataset:
Patent GB-676645-A (GB)
Title: Improvements in means for locking a reel in position on an arbor
IPC: F16D1/06
Filed: 1949-09-05
Abstract: 676,645. Positioning reels axially on shafts. SYNCRO MACHINE CO. Sept. 5, 1949 [Sept. 4, 1948], No. 22971/49. Class 80 (ii). A reel 14, Fig. 9, is positioned axially on a rotary sleeve 15, as for free rotation thereon or for torque transmission therebetween through a member X on the sleeve engaging a recess Y in the reel, by bars 34, Fig. 3, caused to project from the sleeve by rotation relative thereto , " a plate member 28 which subsequently moves axially to carry the bars 34 into facial abutment with the reel. The member 28 is operated by a control member 20, Fig. 1, in screw-threaded engagement with a partition 25 fast with the sleeve 15, rotation of the member 20 by a.tool 27 first rotating the member 28 through friction washers 30 adjustably loaded by a nut 31 and spring washer 29, so as to project the bars 34 through pin and slot connection 32, 33; and then, when a pin 37, Fig. 3, projecting from the partition 25 into a slot 38 in the member 28 prevents further rotation thereof, moving both the member 28 and the projected bars 34 axially. Initial axial movement of the member 28 brings a bore therein into co-action with a further pin (not shown) projecting axially from the partitions 25, to prevent retraction of the bars 34 during this part of the operation. In a modification, Fig. 5 (not shown), the control member is rigid with a screwed collar working in the threaded interior of the sleeve, and spring- loaded axial plungers in the collar bear on friction washers between the collar and the plate member to rotate the latter on rotation of the control member. The heads of radial screws in the plate member project into recesses in the bars to transmit the rotary drive thereto, such drive being limited by pins in the sleeve projecting radially inwardly into slots in the bars, whereupon the bars are carried axially of the sleeve on further rotation of the control member, their rear ends passing in front of axial pins in the wide sleeve slots wherein they work, to prevent retraction as before.
Patent GB-861854-A (GB)
Title: Process for the manufacture of plasticized polymers or copolymers of vinyl chloride
IPC: C08L23/34
Filed: 1957-07-19
Abstract: Plasticized polyvinyl or polyvinylidene chloride compositions are prepared by mixing an aqueous emulsion or dispersion, a dispersion in an organic solvent, or finely-powdered polyvinyl or polyvinylidene chloride, or a copolymer of vinyl chloride and an olefinic monomer, with an organic solvent solution of chlorinated or sulphochlorinated polyethylene, polypropylene, or copolymer of ethylene and propylene, and removing the solvent and water from the mixture.  A solution of the polyolefine may be added to an aqueous emulsion of the polyvinyl chloride or vice versa, or alternatively finelypowdered polyvinyl chloride may be added to the polyolefine solution.  Polyethylene prepared by the high or low-pressure processes may be used with solvents such as methylene chloride, chloroform, carbon tetrachloride, tetrachlorethane, benzene or toluene or mixtures thereof, with or without anion or cation emulsifiers.  The mixtures may be freed of solvent by coagulating with, for example, calcium on lead chloride, by atomizing with steam or inert gas under reduced pressure, or by stirring with hot water.  Other plasticizers and dyestuffs may be included in the composition.
Patent GB-458608-A (GB)
Title: Improvements in or relating to the manufacture of laminated glass and the like
Filed: 1935-08-15
Abstract: Laminated glass is provided with an intermediate layer produced by the polymerization of vinyl acetate or an acrylic acid ester with up to 25 per cent of softening agent and without solvents, the polymerization being carried to the middle stage, and, after this stage is reached, all uncombined monomers being distilled off, the product rapidly heated to 100--120 DEG  C. and forced out of the polymerization vessel and applied to a smooth base to which it does not adhere at normal temperatures, to form a sheet which can be transported or stored prior to use.  Sheets of smooth metal, polished wood, compressed cardboard, and the material known under the Registered Trade Mark "Bakelite" are suitable non-adhesive bases. Examples describe the polymerization of vinyl acetate with dimethyl glycol phthalate and with tributyl phosphate, and of ethyl acrylate with dibutyl phthalate.  The sheets are secured between glass plates, or between a glass plate and a strengthening backing (in making a reflecting sign) with the aid of an adhesive.  A sample is furnished under Sect. 2 (5) of a polyvinyl resin sheet prepared by polymerizing vinyl acetate with 13 per cent of dimethyl phthalate with the aid of uranyl sulphate as catalyst by heating up to 80 DEG  C. distilling off residual monomers, heating to 100 DEG  C. and extruding on to a metal sheet. Specifications 381,693; 456,918, [Group V], and 457,345 are referred to.  The Specification as open to inspection under Sect. 91 describes also the polymerization of vinyl esters generally including vinyl bromide, and of vinyl esters mixed with acrylic acid esters, in the presence of softeners.  Tricresyl phosphate is stated to be a suitable softener.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1414279-A (GB)
Title: Motor vehicle having audio systems
IPC: H04R5/04
Filed: 1974-05-23
Abstract: 1414279 Loudspeaker circuits; stero systems; radio and tape recorder arrangements FORD MOTOR CO Ltd 23 May 1974 23005/74 Headings H4J H4R and H3Q  A motor vehicle has two separate audio systems, for example a radio and a tape or record player, which feed a common loudspeaker system through a relay. When one of the audio systems is in operation the relay is energized and connects the output of the first audio system to the loudspeaker system. When the relay is not energized it connects the output of the second audio system to the loudspeaker system. Preferably the relay when energized disconnects the second audio system from the vehicle electrical supply. One or both audio systems may be a stereo system and the loudspeaker system may comprise two sterophonically related speakers.
Patent GB-599159-A (GB)
Title: Improvements in sound gates of the drum type
Filed: 1945-09-06
Abstract: 599,159. Sound gates. DEBRIE, A. L. V. C. Sept. 6, 1945, Nos. 23028 and 23029. Convention dates, Feb. 23, 1942, and July 15, 1942. [Class 40 (ii)] In an apparatus for reproducing sound on film, correct registration of the operative edge of the film, despite any irregularities which may occur in the width of the film, is effected by two fixed guides on the operative edge of the film, and a spring-loaded means applied to the other edge to maintain the film against the said guides. One of the fixed guides may take the form of a projection 9, Fig. 2, which is mounted beside the drum 2, and has a U-shape groove curved longitudinally to correspond to that of the periphery of the drum 2. The other fixed guide may take the form of a flanged pulley 4. The means for applying pressure to the film 1 to urge it towards the fixed guides may be obtained by an intermediate spring-loaded flanged pulley 6. In an alternative construction, Figs. 4 and 5 (not shown), the fixed flanged pulley 4 may be omitted and a longer fixed guide 9 used, in which case the spring- loaded flanged pulley 6 is also omitted and replaced by a spring-loaded flange on the drum 2. Constancy of speed of the film 1 passing over the drum 2 is maintained by a fly-wheel 3 on the drum shaft, and a spring-loaded jockeywheel 8, which maintains tension in the film, and is arranged to permit longitudinal rocking on its axis to enable it to conform to the shape of the film 1, when the lengths of its edges vary.
Patent GB-409962-A (GB)
Title: Improvements in or relating to control and protective arrangements for electric distribution systems
IPC: H02H3/00
Filed: 1933-08-18
Abstract: 409,962. Protective cut-out systems. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Hester, E. A.; R.F.D. 9, South Hills Branch, Pittsburg, U.S.A.) Aug. 18, 1933, No. 23063. Convention date, Aug. 25, 1932. [Class 38 (v).] Automatic circuit-breakers; electromagnetic switches.-The load network 2 is supplied from sources 1 through breakers 3, 6 and transformers 4. Opening and closing of breakers 6 is effected under control of relays 13, each having a winding 21 energized by a current transformer 25, windings 22, 24 energized proportionally to the voltage of the network 2, and winding 23 which is energized proportionally to the voltage of transformer 4, but only when the breaker 6 is open and switch 27 thereby closed. Impedances 25<1>, 28, 29 adjust the phase displacement between the energizing voltages and the flux produced by the appropriate windings. The magnetic circuits of the relays are as shown, and each armature carries a plunger 20 slidable in an aperture in the upper core and carrying a bridge-member for contacts 30. When 6 is open and 2, 4 are energized, the windings 22, 23, 24 are energized and the armature is in its upper position. The flux of 22 tends to lower the armature, whereas that of 24 tends to maintain it raised ; the flux of 23 also opposes that of 24, so that when the resultant of the fluxes of 23, 24 bears a given relation to that of 22, the armature is lowered to close contacts 30 and energize the closing coil 7, the breaker being latched at 11. With a predetermined reverse current, windings 21, 22, 24, instead of maintaining the armature in its lowered position, act to raise it and move the latch 11 aside, whereby the spring 8 opens the breaker. The operation of the various relay windings is explained with the aid of a vector diagram, Fig. 3 (not shown).
Patent GB-146011-A (GB)
Title: Improvements in transmission shock absorbers
IPC: F16D3/12
Filed: 1919-09-19
Abstract: 146,011. Triumph Cycle Co., and Middleton, E. C. Sept. 19, 1919. Securing wheels &c. on shafts.-In shockabsorbing means for connecting motorcycle and other shafts to sleeves carrying gear-teeth &c., a pair of disks B2 C are splined to one member, such as the shaft A, and engage inclines or screw-threads on the other member D. One or more springs J press the disks apart or, in a modification, together, in which case they butt against projections on the sleeve or shaft, so that in each case the end thrust is self-contained. Holes in the shaft and sleeve convey lubricant, to the gearing.
Patent GB-1017239-A (GB)
Title: Improvements in or relating to the packaging of tow
Inventor: GUENTHER E G
IPC: B65D85/07
Filed: 1962-06-15
Abstract: 1,017,239. Packages. EASTMAN KODAK CO. June 15, 1962 [June 19,1961], No. 23140/62. Heading B8C. In baled tow of crimped continuous filaments, e.g. of cellulose acetate, the tow has a total denier of not more than 80,000, a denier per filament of less than 9 and the tow is arranged in superposed non-intermeshing layers, the density of the bale being at least 24 pounds per cubic foot. The removal of the tow from the bale is said to be considerably facilitated by these conditions. The layers may be formed zig-zag fashion. The bale is enclosed in a lined wrapper 10 before being bound with strapping 12. Several examples of denier and density values with different materials are given. The tow is especially applicable to the manufacture of cigarette filter tips.
Patent GB-186797-A (GB)
Title: Improvements in and relating to electric current limiting devices
IPC: H01H81/04
Filed: 1921-08-31
Abstract: 186,797. British Thomson-Houston Co., Ltd., (General Electric Co.). Aug. 31, 1921. Electromagnetic interrupters. - A currentlimiting switch is adapted to operate with a large interval of time between successive openings of the contacts, when the predetermined load is exceeded. For this purpose, an armature 14 is weighted at 16, and, when attracted by the winding 12, in series with the load, strikes a weighted contact-member 26 as it nears the end of its travel. The blow thus imparted lifts the contact 27 out of engagement with its co-operating fixed contact 28 until it strikes a stop 30 when it descends, re-making the circuit, the weight 40 considerably diminishing the frequency of interruption. A felt stop 15 is attached to the support 18 of the contact 28. The armature 14 is pivoted to the magnet frame. 13 at 32 and to adjust the air-gap, the frame 13 is pivoted to the base at 33 and a clamp provided at 35. The core 13 is preferably laminated for use in alt-ernating-current circuits and secured by screws 33, 39. For very large overloads, the contacts may be held apart by the attraction of the armature 14, a resistance 31 being connected in shunt across the contacts for the purpose of providing an alternative path for the current until normal conditions are restored.
Patent GB-608298-A (GB)
Title: New or improved optical glasses
IPC: C03C3/15
Filed: 1946-08-03
Abstract: 608,298. Optical glass. KODAK, Ltd. (Eastman Kodak Co., and Paolis, P. F. de). Aug. 3, 1946, No. 23183. Addition to 462,304. [Class 56] The invention of the parent Specification is modified to give three groups of glasses as follows: Group 1, refractive index approximately 1.71, and dispersive index approximately 53, with not more than 46 per cent of at least two of La 2 O 3'  ThO 2 , Ta 2 O 5 , &c., not more than 40 per cent of one or more of B 2 O 3 , Al 2 O 3 , SiO 2  of which at least 30 per cent is B 2 O 3 , and at least 15 per cent of the oxides of one or more divalent metals of which BaO constitutes at least 7 per cent. Group 2, refractive index 1.75-1.80, and dispersive index 37-40, with 18-27 per cent of La 2 O 3 , 12-18 per cent of TiO 2  and/or MoO 3 , 12-18 per cent of ThO 2 , 15-27 per cent of one or more of BaO, SrO, CaO, CdO, 20-30 per cent B 2 O 3 , and less than 3 per cent of Al 2 O 3  and/or BeO. Group 3, refractive index 1.80-1.82, and dispersive index 40-42, with less than 70 per cent of La 2 O 3 , Ta 2 O 5 , and ThO 2  and at least 5 per cent of each, 27-30 per cent of one or more of B 2 O 3 , Al 2 O 3  and SiO 2  of which B 2 O 3  comprises 22-24 per cent, and 2-15 per cent of one or more of WO 3 , ZrO 2  and TiO 2 . Several examples are given.
Patent GB-461623-A (GB)
Title: Improvements in and relating to the production of acetylated alkyltrimethylolmethanes and the use thereof
IPC: C06B25/26
Filed: 1935-08-17
Abstract: Tri-acetates of alkyltrimethylol methanes which are made by reacting the alkyltrimethylol methanes with acetic anhydride at 115--118 DEG C. are used for gelatinizing and partially or wholly phlegmatizing of bursting or propellent explosives such as trinitrololuene, tetryl, tetranitropentaerythrite, trinitro-trimethylenetriamine, nitroglycerin, and nitric esters of alkyltrimethylol methanes.  In an example, a gunpowder is made by mixing nitrocellulose (11,6--13 per cent nitrogen) 50--64 parts, nitroglycerin or nitric esters of alkyltrimethylolmethanes, 42--28 per cent, and methyltrimethylolmethane triacetate 2--8 per cent.  This powder can be rolled or drawn.  Instead of a single acetate a mixture of two or more acetates may be used.  The Specification as open to inspection under Sect. 91 states that the alkyltrimethylolmethane acetate may be used as an addition to cellulose nitrate and acetate for the production of lacquers, films, plastics, &c.  This subject-matter does not appear in the Specification as accepted.
Patent GB-262863-A (GB)
Title: Improvements in balanced valves
IPC: F16K39/02
Filed: 1925-09-17
Abstract: 262,863. Dederich, W. Sept. 17, 1925. Addition to 237,435. Valves controlled by pilot or relay valves; closure members.- The valve described in the parent Specification is modified by arranging the auxiliary valve to control the flow from the steam chamber tc the balancing chamber ir more than one phase. The main valve 2 is coupled to a piston 10 and co-operates with a seat 15 arranged at the bottom of a recess so as to throttle the steam supply on its way to the valve closure. Steam is supplied to the chamber 9 at the back of the piston through pipes 6 chambers 5 and 12 and annular passage 8 and is controlled by a disc 13 on the actuating spindle co-operating firstly with the front edge of the chamber 12 and later with the bottom of the chamber. When opening the main valve, steam is exhausted from the chamber 9 through passage 16 under the control of the auxiliary valve 3.
Patent GB-957324-A (GB)
Title: Improvements in or relating to hydraulically operated power transmission systems
IPC: F01B3/00
Filed: 1960-08-31
Abstract: 957,324. Hydraulic transmission of power. C. VAN DER LELY N.V. Aug. 31, 1960 [Sept. 15, 1959], No. 23253/62. Divided out of 957,321. Drawings to Specification. Heading F2C. [Also in Division G3] The description in this Specification is identical with that concerning the transmission in Specification 957,321, but the claims are directed to the mechanism 87 for varying the angularity of the swash plate of the pump, the mechanism having a piston movable in a cylinder by a control rod connected to the piston by a lost-motion connection which enables the piston to be moved in the ahsence of a supply of hydraulic pressure medium to the cylinder. Specifications 957,322, 957,323, 957,325 and 957,326 also are referred to.
Patent GB-849604-A (GB)
Title: Trim control system for autopilots
IPC: G05D1/08
Filed: 1958-07-21
Abstract: 849,604. Automatic steering control systems. LEAR Inc. July 21, 1958 [Aug. 1, 1957], No. 23280/58. Class 38 (4). In a system for automatically controlling an aircraft, a D.C. error signal, developed when the aircraft is out of trim, is applied to actuate a main control surface and a pulse width modulated signal corresponding to the error signal is applied to actuate a trimming control surface. In an aircraft automatic pilot, Fig. 1, the rudder 4 is controlled by signals from a rate gyro 8 and a lateral accelerometer 7 acting through a servoamplifier 6 and a clutch-controlled motor actuator 5. The error signal output of amplifier 6 is also applied to control windings 82, 84 of negatively-biased saturable reactors 64, 66, A.C. windings 60, 62 of which are respectively in series with output windings 34, 36 of a low-frequency square-wave oscillator formed by transistors 12, 14 and a saturable feed-back transformer 22. According to the sense of the error one or other of the negatively-biased transistors 42, 44 is thus rendered conductive intermittently for periods dependent on the magnitude of the error. This causes, through further transistors 124, 126 or transistors 128, 130, operation of a split-field D.C. motor 152 in the appropriate direction to remove persistent error signals by adjustment of a rudder trim control surface 90. The total period of intermittent operation of motor 152 is limited by a condenser 150 which when charged causes operation of a relay 192 to cut off the electric power supply to the automatic pilot. Rectifiers 162, 164 isolate the circuit if voltages are applied through a selector switch 165 to control motor 152 manually.
Patent GB-295584-A (GB)
Title: Improvements relating to electrical accumulators
IPC: H01M50/40
Filed: 1928-08-13
Abstract: 295,584. Stame, F. Aug. 13, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Electrodes; separators.-In a storage battery having a negative electrode which receives on charging a deposit of zinc, nickel, silver, &c., the electrode is enclosed in a bag of fabric or other porous material in order to prevent shortcircuiting due to the formation of metallic burrs or projections. The bag is open at the top to allow gas to escape and it may be spaced apart from the enclosed electrode. The positive electrode may be enclosed instead of the negative. The Specification states that the use of the porous bag increases the osmo-electric, hydrostatic and electro-chemical phenomena through the creation of well defined acid and neutral regions.
Patent GB-456184-A (GB)
Title: Improvements in luminous electric discharge lamps
IPC: H01J61/56
Filed: 1935-08-19
Abstract: 456,184. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent-Treuhand Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) Aug. 19, 1935, No. 23298. [Class 39 (i)] The series resistance for a discharge lamp is formed as a coating on the exterior surface of the bulb, the resistance being covered by an insulating coating attached to the bulb. In the form shown, the bulb 1 is coated with graphite 4 terminating in carbon deposit 13, 14 the latter of which has a binding 6 connected by lead 10 to the electrode 3 separated from the other electrode 2 by an insulator 12. The resistance is enclosed by a cellulose coating 11 and terminals 17 18 are secured to the bulb by conducting cement 16, 19 respectively. In a modification the terminals 17, 18 are omitted.
Patent GB-703691-A (GB)
Title: Improvements relating to the manufacture of mould masks, cores or the like
IPC: B22C23/00
Filed: 1950-09-22
Abstract: 703,691. Moulding processes, making cores, casting composite articles. POLYGRAM CASTING CO., Ltd. Sept. 22, 1950 [July 1, 1949], No. 23317/50. Class 83 (1) Patterns; mould &c. materials.-In a continuous process of making shell moulds and hollow cores, heated patterns, pattern-plates or core boxes are provided with an insulating coating and invested with a mouldable mass comprising a loose filling material such as sand, metal powder, oxides, or the like together with a binder such as an artificial resin, lacquer, silicone or the like which becomes set in contact with the heated surface after which the excess of mouldable material is removed, the coating hardened by heating, separated from the pattern or core box and then strengthened by a backing. The binder may contain different materials which harden successively at different temperatures. The insulating coating may be applied by painting or spraying or may be included in the mouldable mass, for example as a wax which, on contact with the heated pattern, melts and separates from the mass. Alternatively the pattern may be of sintered metal powder impregnated with a lubricant. The mouldable mass may be applied by spraying or by inverting a container over the pattern and then turning over both the pattern and the container so that the surplus falls back into the container. The mass may also contain wood meal or other filling and also hardening agents. If magnetic material such as iron powder is used, the mask may be lifted with the aid of a magnet. Metal parts may be moulded into the mask so as to be retained in the casting. The pattern &c. may be of graphite or of a cold casting mixture such as graphite powder together with magnesite, steartite, quartz, kaolin and magnesium chlorite or water glass. Specification 703,749 is referred to.