baber/WOPTO huggingface dataset:
Patent GB-872779-A (GB)
Title: Improvements in or relating to telephone systems
Inventor: MARWING KENNETH GEORGE
IPC: H04Q3/42
Filed: 1956-11-30
Abstract: 872,779. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Nov. 6, 1957 [Nov. 30, 1956], No. 36619/56. Class 40 (4). A magnetic drum register-translator seizes a direct junction to a wanted exchange if there is a direction junction idle, and if there is no direct junction available the register translator uses an alternative translation. In a system of the type described in Specification 831,188, dialled digits are entered into an appropriate register on a magnetic drum. The first code digit selects a library track and all the code digits are entered on the transfer track. In known manner the code digits are compared with the digits on an address track, coincidence resulting in the transfer from the corresponding part of the library, track to the transfer track of routing and metering information and also a digit indicating the number of direct junctions to the wanted exchange. This information is recirculated round the transfer track. When it reaches the position corresponding to the originating register a complete scan begins during which the exchange code digits are compared with the exchange code digits stored in each of the registers in use. At each coincidence the digit indicating the number of direct junctions is reduced by one. The number of free direction junctions is thus indicated at the end of the scan. If a direct junction is free a comparison circuit transfers the routing and metering information to the originating register and the call proceeds in known manner. If there is no direct junction the comparison circuit calls for a second translation. This is obtained from an auxiliary library track and is transferred to the originating register in the same scanning cycle, the exchange code digits being erased at the same time.
Patent GB-838785-A (GB)
Title: Improvements in or relating to the heat treatment of filaments, fibres, threads, film
IPC: D06B19/00
Filed: 1956-11-30
Abstract: <PICT:0838785/IV(c)/1> <PICT:0838785/IV(c)/2> Dyed filaments, fibres, threads, sheets and like products in long lengths are fixed whilst passing through an upright three-part cylindrical container 11, 12, 13, Fig. 1, which houses a bed of hot fluidized particles and has a slit 14, 18, 26, in its wall through which the materials to be treated are passed sideways when the apparatus is initially loaded. The materials are guided through the container by members 37, 38, and air is introduced at 29 into the box 13.  The slits 14, 18 are normally covered by a hinged rubber-lined flap 30 and the container parts are connected by nut-andbolted flanges 15, 16, 17, 24, rotational movement between the parts 11, 12, on the one hand, and the air-box part 13 on the other-to misalign the slits 14, 18, 26-being allowed by arcuate-shaped bolt-engaging slots 33, Fig. 3, in the flange 17. Clamps 40 are used to flex the container part 11 to adjust and maintain the slit width 14, and four heating elements 36 are supported by and in the part.  The bed may comprise glass balls or sand.  The lower end of the box part 12 has an inward flange 19, Fig. 3, having a slit-accommodating extension to the axial region of the box which mounts a porous air distributer 22.  A modified container is rectilinear in plan view with closed bottom and open top, and two vertical aligned slits are provided, one in each end wall, by means of which the materials are introduced to the bed and through which they are progressed as fixing proceeds. According to the Provisional Specification, the flap 30 is replaced by a device slidable about the container and comprising a longitudinal strip secured to the container by spaced resilient arcuate container embracing bands.  Specifications 773,598, 800,091, 817,992 and 838,784 are referred to.
Patent GB-449095-A (GB)
Title: Improvements in or relating to means for locking the brakes on road vehicles
IPC: B60T11/10
Filed: 1934-12-21
Abstract: 449,095. Locking brakes to prevent unauthorized release. COMETTO, D., and COMETTO, J., 412, Sarmiento Street, Buenos Aires. Dec. 21,1934, No. 36738.. [Class 79 (iii)] [See also Group XXIX] To prevent unauthorized release of hydraulically or like operated brakes on motor vehicles, a non-return valve 26 adapted to be put in or out of action by key -operated means is provided in the fluid conduit. When the valve is out of action, the brakes can be applied and released in the ordinary way but when it is operative, as shown, fluid pressure can be applied to the brakes but cannot be released. The valve 26 occupies a chamber 24 in aT-union 20 connecting a pump 31 to a conduit 30 supplying four-wheel hydraulic brakes. The valve is normally kept open by a cam or eccentric 16 on a rod 15 passing through a packing gland 18 and adapted to be rotated through a flexible steel wire 7 by the key 2 of a rotary barrel lock 1 on the dashboard, the rotary element 3 of the lock being formed with a pair of lugs 4 engaging notches in a flanged disc 6 attached to the end of the wire. The valve is shown in action so that, to release the brakes, the key has to be turned to rotate the cam 16. A projection 32 in the casing engages a recess 33 in the cam to limit the angle of rotation. In a form for operating mechanical brakes, a fluid pressure cylinder containing a spring-pressed piston is connected to the valve chamber 24, the piston rod being directly connected to the arm of a rock shaft operating the brakes.
Patent GB-1277216-A (GB)
Title: Sanitary napkin
Inventor: MASUDA TAMIO
IPC: A61F13/15
Filed: 1969-07-22
Abstract: 1277216 Sanitary napkins YAMANOUCHI PHARMACEUTICAL CO Ltd 22 July 1969 [31 July 1968 19 June 1969] 36878/69 Heading A5R A sanitary napkin comprises three superimposed layers of absorbent material 8, 8a, 8b, a barrier sheet 9 of liquid-repellant material between the upper two layers 8, 8a, two sideby-side spaced-apart liquid-repellant barrier sheets 9a, 9b partly overlapped by sheet 9a and located between the lower two layers 8a, 8b, a water-proof strip 10 under the absorbent layers, and an outer envelope 11 of fibrous material. In a second embodiment, Figs. 3, 4 (not shown), the order of the layers 8, 8a, 8b and sheets 9, 9a, 9b illustrated in Figure 1 is inverted relative to the strip 10. The barrier sheets comprise films of synthetic resins such as polyethylene or polypropylene, or tissue papers laminated with wax emulsions, aluminium acetate, polymerised silicone resins, organo-silicone polymers, long chain pyridinium compounds, wax zirconium acetate emulsions or oil.
Patent GB-860434-A (GB)
Title: Improvements in the production of optical lenses
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01J5/26
Filed: 1956-12-03
Abstract: 860,434. Glass-metal seals. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 10, 1958 [Dec. 3, 1956], No. 36928/56. Class 36. [Also in Group XXIII] A lens is formed by fusing within a substantially circular metal frame, arranged with its axis vertically, a body of glass, the volume of which is such that the opposed surfaces of the glass both acquire-solely as a result of surface tension and gravity-a spherical configuration while the glass is soft and retain this shape as the glass solidifies. As shown in Fig. 1, the frame 1 has a flange 2 and the glass body initially has the shape 5. In Fig. 4, the frame is a tube 1 having an internally projecting flange 12. The glass body may be shaped to form a bead prior to being brought into contact with the frame or a larger quantity of glass may be sealed to the frame, the excess removed by rough grinding and the assembly reheated to form the lens. The assembly may be inverted periodically during sealing to modify the curvature of the surfaces. Specification 572,020 is referred to.
Patent GB-953063-A (GB)
Title: Speed regulating system for an electric motor
IPC: H02P7/295
Filed: 1961-10-16
Abstract: 953,063. Control of D.C. motors. SINGER CO. Oct. 16, 1961 [Nov. 3, 1960], No. 36975/61. Heading H2J. [Also in Division G3] The speed of a series motor is controlled as described in Specification 953,061, but the reference voltage is adjusted by a variable inductor 10, so eliminating sliding contacts in the gate circuit of the silicon controlled-rectifier 17. The inductance is varied by a spring-loaded sliding core 13 and at the slow speed limit of its travel contacts 15 are closed to short circuit the inductor and so positively cut off the rectifier 17. A resistor 14 sets an upper limit to the impedance in the gate circuit.
Patent GB-793250-A (GB)
Title: Improvements in and relating to percussive drill bits
IPC: E21B10/36
Filed: 1954-12-22
Abstract: 793,250. Percussive drills. GRIFFITHS, E., and ROGERS, J. March 21, 1956 [Dec. 22, 1954], No. 36998/54. Class 124. A percussive drill bit is provided adjacent the rear of its cutting face but spaced therefrom with one or more integrally formed, fin-like projections merging smoothly into the body. As shown, a hollow drill bit 1 has cutting edges 2 and at least two projections 3 formed on the body. The projections may extend radially to be in line with or beyond the outer periphery of the front face.
Patent GB-1529628-A (GB)
Title: Fuel supply device for internal combustion engines
IPC: F02M51/02
Filed: 1976-09-07
Abstract: 1529628 Controlling fuel injection SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 7 Sept 1976 [30 Sept 1975] 37046/76 Heading F1B To maintain the desired air/fuel ratio, solenoid valve 71 meters air via restriction 79 to control a fuel pressure regulating valve 33 so as to vary the injection pressure in response to an operating condition eg exhaust composition, detected by sensor 60. Reference signal from generator 61 and a sawtooth wave signal from generator 65 are combined with the sensed signal to provide a variable duration squarewave output which is applied to the solenoid 70 via amplifier 69. The duration of fuel injection is controlled in response to the position of auxiliary throttle 3 via potentiometer 25 and control unit 20, device 23, rotated for example by the engine, providing the signal for commencement of injection.
Patent GB-848874-A (GB)
Title: Improvements in hoists
IPC: B66D3/18
Filed: 1955-12-28
Abstract: 848,874. Hydraulic overhead hoists. DAVIDSON, J., and HUTCHINSON, A. Dec. 27, 1956 [Dec. 28, 1955; July 16, 1956], Nos. 37127/55 and 21926/56. Classes 78 (2) and 78(4). An overhead hoist running on wheels 14, 15 along girder 16 is operated by piston 11 of cylinder 10 the piston carrying pulleys 33, 34 which reciprocate to elevate or lower load hook 39, by means of cable 35 passing around said pulleys. The hoist is controlled by four-way valve 21 operated via lever 31 by pull chains 27, 28, which latter also at the same time operate switch 32 of electric motor 18 driving pump 19, which circulates fluid in the hydraulic circuit 22, 23, 24, 25. Valve 21 operates progressively so that the speed of movement of the load can be varied. Safety valves may also be included in the hydraulic circuit. The hoist may be traversed along the girder by an hydraulic motor (not shown) supplied by said pump 19.
Patent GB-1148416-A (GB)
Title: Dc amplifier
IPC: H03F1/14
Filed: 1967-08-14
Abstract: 1,148,416. Transistor amplifying circuits. BUNKER-RAMO CORP. 14 Aug., 1967 [15 Aug., 1966], No. 37224/67. Heading H3T. A transistor amplifier comprises two transistors of similar conductivity type in cascade connection with a load impedance comprising a third transistor of opposite conductivity type with its base held at a fixed potential (Fig. 1, not shown). In a modification, the first and second transistors in the cascade circuit, Q4, Q5, Fig. 2, are respectively of NPN and PNP type and their common point is connected to supply potential via a resistor R2; the third transistor Q6 is of NPN type and its emitter is connected to a supply source via a resistor R3. This modification is such that the output terminal 18 can be at earth potential in the absence of an input. In a further modification the first transistor Q12, Fig. 4, forms with transistor Q16 a push-pull input pair, having as common emitter impedance a further transistor Q15. The output from the second transistor Q13 in the cascade circuit is used to drive a complementary pair of transistors Q17, Q18 forming an emitter-follower output stage operating in class B; resistor R10 serves to prevent crossover distortion.
Patent GB-832026-A (GB)
Title: Arrangement in or relating to punches or the like machines
IPC: B21D28/00
Filed: 1957-11-29
Abstract: 832,026. Machinery safety devices. HANSEN A.S., H. J. Nov. 29, 1957 [Nov. 29, 1956], No. 37261/57. Class 80 (4). A safety device for a compressed-air-operated punch or press comprises an auxiliary piston 1 connected to the main ram or piston 5 to which air is supplied to operate the ram or punch at a reduced power for the greater part of the stroke which is not sufficient to damage an operator's finger if left in the way. For the final part of the stroke when there is not sufficient room for an operator's finger the piston 5 passes beyond its cylinder 6 to open the main cylinder 2 to the compressed air to operate the main ram or piston 5 at full power. A vacuum relief valve 4 is provided for the space above the piston 5.
Patent GB-817484-A (GB)
Title: Improvements in transistor amplifiers
IPC: H03F3/14
Filed: 1955-12-29
Abstract: 817,484. Transistor amplifier circuits. GENERAL ELECTRIC CO. Dec. 29, 1955 [Jan. 28, 1955], No. 37266/55. Class 40 (6). A broad-band transistor amplifier comprising a cascaded connection of junction transistor amplifier stages, each having a grounded emitter and each transistor being of the tetrode type having a main and auxiliary base connection, the emitter of each stage being biased in the forward direction and the collector in the reverse direction. A potential difference is maintained between the main and auxiliary base electrode so that current flows through the base and reduces the voltage amplification per stage thus increasing the band width. The collector of each stage is capacitively coupled to the base of the succeeding stage and the input to the amplifier is applied between the base and emitter of the input stage and output is taken between the emitter and collector of the last stage. The Figure shows a wide band video amplifier comprising two grounded emitter junction transistors 1, 2 of the N.P.N. type in which bias batteries 13 and 14 bias the emitter and collector electrodes in the forward and reverse direction respectively and in which battery 15 maintains a potential difference between the main base electrode 3 and the auxiliary base electrode 11. The output of the first stage is taken from collector 5 and applied by a capacitor 17 to a substantially identical output stage. It is stated that with the circuit described a band-width of approximately 2 m/c. may be obtained over as compared with the band-width of 185 k/c when each of the stages is operated in a conventional triode connection. P.N.P. tetrode junction transistors may be used the bias polarities being reversed.
Patent GB-1280034-A (GB)
Title: Low foam detergent compositions
IPC: C11D3/00
Filed: 1969-07-25
Abstract: 1280034 Low foam detergent compositions WEST LABORATORIES Inc 25 July 1969 [25 July 1968] 37466/69 Heading C5D A low foam detergent composition comprises (A) a non-ionic surfactant having a molecular weight of from 1800 to 6000 and containing units of ethylene oxide and propylene oxide, the molecular weight of the P.O. units being at least 800 and the E.O. units constituting not more than 65% by wt. of the compound, (B) from 5 to 100% by wt. of component (A) of a non-ionic surfactant containing 2 to 25 moles of ethylene oxide per mole of surfactant and having a molecular weight of at least 300 when E.O. is the only alkylene oxide from which it is derived and of at least 1800 when it is derived from both E.O. and propylene oxide, (C) from 1 to 50% by wt. of component (A) of an aliphatic monocarboxylic acid and/or aliphatic alcohol, the aliphatic radical(s) having 8 to 18 carbon atoms and, when component (C) is an aliphatic monocarboxylic acid, (D) from 1 to 20 times by wt. of component (A) of a mineral acid. Surfactant (B) may be ethoxylated nonyl phenol or alcohol containing 2 to 4 moles of E.O. per mole of surfactant. Component (C) may be capric acid, decyl alcohol or tridecyl alcohol. Optional ingredients are (E) water-soluble solvents e.g. ethanol, ethylene glycol or the butyl ether of ethylene glycol, (F) iodine, (G) hydroxy organic acids e.g. citric acid, (H) alkali metal or alkaline earth metal hydroxides, alkali metal silicates, phosphates or carbonates.
Patent GB-1442820-A (GB)
Title: Track belt
IPC: B62D55/24
Filed: 1973-08-08
Abstract: 1442820 Tread bands CATERPILLAR TRACTOR CO 8 Aug 1973 [22 Aug 1972] 37633/73 Heading B7C A track belt 10 for use when disposed around a pneumatic carcase 12 comprises an elastomeric base belt 11 provided with substantially inextensible reinforcing plies 19 and having permanently-formed flat track-shoe sites 20, and track shoes 13 located on respective track-shoe sites by means of keeper bars 15, bolts 14 and retaining blocks 16. The keeper bars may be located on the radially inner periphery of the base belt or may, as shown, be embedded in the base belt. Sealing ribs 21 may be provided between adjacent track-shoe sites. Lands 22 may be provided on the base belt, for engagement in grooves 23 of the carcase 12. The elastomeric belt may be made by applying reinforcing plies and uncured elastomer to a cylindrical drum and curing the elastomer while forcing flat plates against the elastomer so as to form the flat track-shoe sites 20. The reinforcing plies 19 may comprise metal or glass fibre filaments. Each ply 19 may comprise a single convoluted filament, or a plurality of filament loops arranged in side-by-side relationship.
Patent GB-1021672-A (GB)
Title: Improvements relating to vehicles for towing
Inventor: ELVY FRANK WALTER
IPC: B62D59/02
Filed: 1962-10-05
Abstract: 1,021,672. Driving trailers. SCOTTORN Ltd. Sept. 4, 1963 [Oct. 5, 1962], No. 37803/62. Heading B7H. In a towing vehicle/trailer combination the trailer axle 2 is similar to the towing vehicle rear axle and is connected by propeller shaft 7 to a power-take-off on a gear-box 11 on the towing vehicle. The gear-box 11 is identical to the transfer gear-box 19, the power-take-off of which is connected to what is normally, the power-take-off output of gear-box 11. The input and one output of gear-box 11 are blanked off while the other output acts as a power-take-off and is connected to the trailer axle 2. Since the ratios of gear-boxes 11 and 19 are identical and the trailer axle and towing vehicle rear axle are the same the wheels travel at the same speed.
Patent GB-984087-A (GB)
Title: Thermal and pigment stable latices of oxidized liquid diolefin polymers
IPC: C08C19/04
Filed: 1962-10-05
Abstract: A pigment stable latex is prepared from a liquid polymer obtained by the polymerization of a conjugated diolefin of 4 to 6 carbon atoms by treating the liquid polymer with oxygen at between 20 DEG  and 250 DEG  C. in the presence of a hydrocarbon solvent and emulsifying a solution of the oxidized polymer in the same solvent in which it was treated with oxygen by agitating it with water in the presence of 2 to 5 parts of an ionic emulsifier per 100 parts of liquid polymer and in the absence of nonionic emulsifier, the ionic emulsifier having the formula MRSO4 where M is sodium, potassium, ammonium, triethanolamine or diethanolamine and R is lauryl, cetyl, oleyl or an ethoxylated derivative thereof and after removing the solvent, the pH of the latex is adjusted to above 8.0.  The preferred polymer is a copolymer of 75 to 100 parts butadiene and 25 to 0 parts styrene, the emulsifier sodium lauryl or sodium oleyl sulphate.  Comonomers also specified are acrylonitrile, methyl vinyl ketone and alkyl ring substituted styrene.  Specifications 766,225, 802,563 and U.S.A. Specification 2,611,751 are referred to.
Patent GB-1519490-A (GB)
Title: Frame assembly for panels or the like
IPC: E04B2/96
Filed: 1975-09-17
Abstract: 1519490 Frames TAJIMA JUNZO SEISAKUSHO Ltd 17 Sept 1975 [20 Sept 1974 4 Oct 1974] 38157/75 Headings E1J and E1W A frame member comprises two first channel members (21) joined at base portions, and two further U-section members 22 joined to the first members by flanges 29, 30. In Fig. 7 (not shown) the frame member forms a mould for plaster (32). In Figs. 9-10 (not shown) resilient members (34) cover flanges 29, 30 and abut against partitioning wall members (35). For Figure see next column
Patent GB-345255-A (GB)
IPC: G03F7/115
Filed: 1929-12-13
Abstract: 345,255. Photo-mechanical printing- surfaces. LUDVIGSEN, N., 2, Rue de Louvois, Paris. Dec. 13, 1929, No. 38256. Convention date, Dec. 19, 1928. Drawings to Specification. [Class 98 (ii).] In a process of producing etched metal plates for photo-mechanical relief printing, a resist screen is applied as by mechanical printing to a metal plate before applying the sensitive coating. In a modified process, the resist screen so applied serves to yield the light parts of the image, and after the sensitive coating has been applied, a second screen serving for the dark parts and half-tones is superimposed thereon. The sensitive layer comprises a colloid sensitized as with ammonium bichromate, and the plate is finished, after exposure to a negative, by the known steps of washing with water, heating, and etching. The development with water washes off the second screen and the unexposed colloid, and leaves bare the first screen where the colloid has been removed; while at the exposed parts, the colloid printed through the second screen remains and covers up the first screen.
Patent GB-1029778-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
IPC: F04B49/08
Filed: 1963-09-27
Abstract: 1,029,778. Reciprocating pumps and motors. C. VAN DER LELY N.V. C. Sept. 27, 1963 [Oct. 16, 1962], No. 38272/63. Heading F1A. A control mechanism for the swash plate type pump and motor of an hydraulic transmission is connected by a coupling rod 50 to the motor swash plate which is in turn connected by a linkage to the pump swash plate (Fig. 1, not shown). A settling rod 31 is manually operable and acts as a piston valve in a piston 25 which divides a housing 24 into chambers 26, 27. Liquid under pressure is supplied to the chamber 26 through a non-return valve 53. A lost motion connection between the rod 31 and piston 25 is provided by a circlip 39 in a groove 38 in a retaining nut 36. When the rod is moved in the direction of the arrow A, liquid in the chamber 27 is vented to the space surrounding the housing 24 through holes 41, a groove 40 and bores 46, 45, 44, 30 so that the pressure in the chamber 26 moves the piston 25. When the rod 31 is moved in the opposite direction the chambers 26, 27 communicate through bores 42, 46, the groove 40 and the holes 41, equalizing the pressure therein and moving the piston 25. Owing to the lost motion connection the piston is maintained in a state of equilibrium since small movements of the rod 31 are possible without corresponding movement of the piston.