baber/WOPTO huggingface dataset:
Patent GB-931474-A (GB)
Title: Improvements in observation ports for enclosures
IPC: G02B23/24
Filed: 1962-02-06
Abstract: 931,474. Viewing equipment for radio-active environment. S. CLAVE, and M. CLAVE. Feb. 6, 1962 [Feb. 6, 1961], No. 4498/62. Class 39 (4). [Also in Group XX] Apparatus for the observation of the interior of enclosures dangerous to enter because of radiation, comprises two aligned afocal systems for reducing and enlarging the field of view respectively and each consisting of a planoconcave component and a plane-convex component separated by a distance equal to the difference between their focal lengths, and transparent means in the light path between the components or at least one system for protecting against radiation traversing the apparatus. As shown in Fig. 2, the apparatus is mounted in a wall 2a and comprises a field reducing afocal system 13, 14 and a fieldenlarging afocal system 15, 16, transparent blocks 1b, 1a being provided in the light path between the components of the respective systems. An apparatus giving a panoramic view is shown in Fig. 3. This apparatus is rotatable about axis X-X<SP>1</SP> in bearings 21a, 21b in a wall 2b and, instead of transparent blocks between the components 13a, 14a and 15a, 16a, there are reflecting prisms. In front of component 13a is a mirror 19, which is rotatable about an axis Y-Y<SP>1</SP> orthogonal to the rotary axis X-X<SP>1</SP> of the apparatus, and the prisms between components 15a, 16a are also rotatable about axis X-X<SP>1</SP> at half the angular rate of rotation of mirror 19. Rotation of mirror 19 and the prism is effected by a handle 24 geared to the respective mounts of the mirror and prisms, while the apparatus is rotated about axis X-X<SP>1</SP> by handle 22.
Patent GB-568693-A (GB)
Title: Apparatus for automatically controlling change speed gears
IPC: F16H61/00
Filed: 1943-03-19
Abstract: 568,693. Telecontrol of automobile gears. TRIGGS, W. W. (Schweizerische Lokomotiv-und Maschinenfabrik). March 19, 1943, No. 4513. [Class 40 (i)] A machine 11, which generates a voltage proportional to the speed of a motor vehicle, is connected to the operating circuit of a switch 4 which selects gear-changing circuits as the voltage rises or falls to keep the engine speed constant. Adjustable stops may be provided to limit the travel of the switch arm and so to prevent the engagement of one or more of the gears. When a switch A is in its " off " position, this automatic control is cut out and a latch operating on the arm of a manuallyoperated selector is released. The latter can then be used to select any desired gear. Specifications 450,560, [Group XXIX], and 501,380 are referred to.
Patent GB-725439-A (GB)
Title: Improvements in or relating to lathe centres
IPC: B23B33/00
Filed: 1953-02-18
Abstract: 725,439. Lathe drivers and centres; chucks. GAUCH, E. Feb. 18, 1953, No. 4688/53. Class 83 (3). Lathe drivers and centres.-The pressure of the work on a centre 4 forces the driver 19 or drivers 5 into engagement with the end face of the work through a common pressure-equalizing medium 11, such as rubber, a synthetic plastic, a liquid such as oil or, as shown, a number of small hardened steel balls. A cylindrical member 3, Fig. 10, carrying the centre 4 is slidable, against return springs 12 and within the limits imposed by a pin 13 and slot 14, within a sleeve 1 having either a taper shank 2 or forming part of the lathe spindle, and three drivers 5 having roughened work-engaging faces 6 are slidable in slots in the member 3. At their rear ends, the drivers are widened to provide part-annular feet 9 which almost abut each other and encircle a reduced extension 10 of the centre member 3. Since the surface area of the feet 9 is greater than the area of the end face of the extension 10, an increased force is transmitted through the balls from the centre to the drivers. The sleeve may drive the drivers through ribs on the drivers engaging slots on the sleeves or a transverse rib 15 may prevent rotation of the balls so that all the parts are locked together. A single driver 19, Fig. 13, having teeth 6 acts upon pressure pins 17 passing through the centre member 3 to bear on annular disc 28 behind which are the balls 11. A pressure face 34 is provided in an extension 31 of the centre member 3 by one or more grooves 35 and the balls wedge in those grooves to prevent the extension 31 from sliding completely into a bore 33 in which is a return spring 32. The driver 19 and disc 28 are formed so that they may tilt to allow the driver to accommodate itself to the face of the work, the driver being secured against rubber or other springing means 25 on the sleeve by a pair of bayonet-type fastenings 22, 23 and a slight amount of lost motion being allowed between the pins 17 and the driver. Chucks.-The drivers may be in the form of clamping jaws moved radially to clamp, for example, hollow work.
Patent GB-780516-A (GB)
Title: Improvements in or relating to resistance terminating loading devices
Inventor: GARTHWAITE ERNEST
IPC: H01P1/26
Filed: 1955-02-16
Abstract: 780,516. Transmission line terminations. MARCONI INSTRUMENTS, Ltd. Nov. 28, 1955 [Feb. 16, 1955], No. 4597/55. Class 40 (8). A loading device which presents a pure resistance to a transmission line at all frequencies comprises inner and outer conductors in the form of pairs of conductive plates A1, A2; B1, B2 which converge towards their point of connection to the conductors A3, B3 of the transmission line, e.g. a coaxial line. At its divergent end the inner conductor is connected to a resistive element A4, e.g. a tubular ceramic body with a resistive coating. The front and rear convergent portions of the outer conductor are joined by a short parallel section and the rear portion is joined to the remote end of the resistive element A4. Reactive effects may be tuned out by adjustment of the yoke 2 which determines the distance between the outer plates. Connection to a power measuring circuit may be made through a ring A5 surrounding the resistive element. The device is held in a frame (not shown) with the plates A1, A2, B1, B2 vertical and the resistor A4 at an angle of about 30 degrees to the horizontal.
Patent GB-195234-A (GB)
Title: Improvements in or connected with the manufacture of pneumatic wheel tyres, tubes, and the like, and metal reinforcing elements, and patches, in or for same
IPC: B60C9/16
Filed: 1922-02-17
Abstract: 195,234. Caddy, S. C. Feb. 17, 1922. Pneumatic tyres, repairing.-Relates to reinforcements or patches in which flattened wire helices are embedded in rubber. A ribbon 1 formed of a single flattened helix, or of two such with intermeshing coils, is embedded by pressure between two strips 2 of unvulcanized (or partly vulcanized) rubber. Lengths of this composite strip are arranged circumferentially, transversely or diagonally in a tyre cover between the fabric foundation layers 3. The reinforcement may be used in the manufacture of new tyres, or in re-building worn tyres. Reapir patches may be made with the reinforcement, preferably in two crossed layers, between the usual fabric plies.
Patent GB-161776-A (GB)
Title: An improved water turbine for domestic and other uses
IPC: F03B13/04
Filed: 1920-02-16
Abstract: 161,776. Hennig, J. Feb. 16, 1920. Massage; air douches; cupping-appliances and pneumatic appliances.-A portable appliance for various uses such as massage, cupping, hot air treatment, &c. consists of a combination of impact turbine and blower on the same shaft enclosed in a sheet metal casing which is adapted to be clamped to a water tap, the nozzle of the turbine being provided with a branch pipe in which the jet of water induces suction. In the drawings, a indicates a turbine of the Pelton wheel type, and b a blower mounted on a common shaft c. The casing comprises two sheet metal outer parts f, g and a partition d, these parts being centred by. their overlapping edges. The passage r for the supply of air to the blower is formed by a stamped channel-shape sheet secured to the side of the casing and shaped as shown to provide a long passage into which the flames of a lamp or other hot gases may be introduced when it is desired to use the blower for the purpose of a hot air douche. A flexible tube v may be connected to the discharge passage u of the blower. The turbine casing f is connected to a water-tap i by means of the pipe h, washer w, bolts l, and a strap k passing under and over the tap. The jet nozzle m has a branch pipe n which may be connected by a flexible tube o to a suction cup p for any required medicinal purpose, such as drawing off liquids, suction and congestion massage, and opening and treating wounds. The shaft of the turbine may be connected by a flexible shaft x to a grinding or polishing disc y or to a vibratory massage apparatus.
Patent GB-695047-A (GB)
Title: Improvements in or relating to flexible tubing and to a method of producing the same
IPC: E21F1/04
Filed: 1951-02-27
Abstract: 695,047. Coated glass fabric tubes. DUNDEE BRATTICE CLOTH & WATERPROOFING CO., Ltd., and SYME, D. May 14, 1952. [Feb. 27, 1951] No. 4733/51. Drawings to Specification. Class 140. [Also in Group XXVIII] An impermeable binding medium which may be the precondensate of a synthetic resin which is subsequently completely condensed or polymerised, e.g. plasticised polyvinyl chloride or polyvinyl acetate, or mixtures of such resins, is applied, in liquid form, to a sheet of woven glass fabric and allowed to solidify, the sheet afterwards being formed into a tube. More than one coat of resin may be applied to the sheet and one side of the sheet may have a greater number of coats than the other or the same number of thicker coats.
Patent GB-1468340-A (GB)
Title: Cine-cameras
IPC: G03B1/50
Filed: 1974-04-11
Abstract: 1468340 Cine cameras K VOCKENHUBER and R HAUSER 11 April 1974 [24 May 1973] 04789/76 Divided out of 1467342 Heading G2E A cine and sound camera has drive means comprising an intermittent drive for transporting the film through the camera gate, and a continuous drive formed by a capstan and a pinch roller which can be moved together or apart, the drive means having an operative and a non-operative condition, which means can be latched in the non-operative condition against biasing means, and released to assume the operative condition. Fig. 1 shows a camera 101 having a sound-film cassette 2, the film being driven intermittently through the exposure gate by a claw mechanism 107. The take-up spool is driven by a ratchet 300, the ratchet being driven by a flywheel (311), Fig. 2, (not shown) which is coupled to a capstan 108. A pinch roller 109 is mounted on a lever 314, and can be brought into contact with the capstan to engage and drive the film F, or retracted therefrom in the "off" position, which is shown in Fig. 1. If the camera is started by the release 120, the motor 106 is switched on, and the claw mechanism 107 drives the flywheel (311) and the capstan 108. This driving torque is transmitted to the film take-up drive, and a latching pawl 313 is retracted from the position of Fig. 2A, in which it holds lever 314 in the "off' position, and allows it to be pulled upwards by a strong spring 316 into the Fig. 2B position, in which roller 109 engages with the capstan. If the camera is to be stopped, a locking pawl for a lever 320, to which the other end of spring 316 is attached, is briefly disengaged by the release 120. Lever 320 is thus pivoted by spring 316 into the Fig. 2C position until it engages a cam 318 which is continuously driven clockwise by the flywheel. Lever 320 is thus pivoted clockwise until the cam passes into the Fig. 2D position, in which it no longer engages with lever 320. In this position spring 316 is completely relaxed, so that lever 314 is now pulled by a less strong spring 317 and pivoted clockwise until it is latched once more in the "off" position by pawl 313. A mode selector switch 324 enables the camera to be operated without the pinch roller being pivoted against the capstan. Figs. (not shown) 3-6 are alternative methods of controlling the movement of the pinch roller towards the capstan.
Patent GB-1530032-A (GB)
Title: Actuator
IPC: B66F7/08
Filed: 1976-02-06
Abstract: 1530032 Fluid-pressure actuators K W BERGLUND and K S N NORDLUND 6 Feb 1976 [10 Feb 1975] 04801/76 Heading F1D An actuator, Fig. 1, comprises a flexible sac 14 enclosed by co-operating members 17, 18 which enclose the sac and produce rectilinear movement. The members 17, 18 are connected respectively to a base 2 and lifting arms 5, 6 which raise and lower a platform 4. A collapsible screen 28 is provided. Levers 5, 6 bear on the member 18 by means of rollers 24. The sac 14 may be of rubber, plastics material or impregnated paper.
Patent GB-105257-A (GB)
Title: An Improved Electromagnetically Operated Switch.
Inventor: TURNBULL ALFRED PERCY
IPC: H01H29/18
Filed: 1916-04-01
Abstract: 105,257. Turnbull, A. P. April 1, 1916. Electro-magnetic switches; mercury switches.-An elect r o magnetically - operated switch comprises a vertically-disposed inulating - tube 4 closed at its ends by metallic caps 7, 8. which constitute the main terminals of the switch. The tube contains mercury 9, which is in connexion through the bolt 15 with the lower terminal, and a soft-iron tube 10 floats upon the mercury. An adjustable contact rod 12 depends into the tube, as shown, and is loosely surrounded by a sleeve 11 of insulating non-combustible material, for example soapstone, which also floats upon the mercury. The tube 4 is surrounded by a solenoid 5 with a single winding or with differential windings, which, when energized, draws the iron tube into the mercury, the level of which rises, lifting the soapstone sleeve until, finally, the mercury contacts with the rod 12 and the circuit is completed. When the solenoid is de-energized, the iron tube rises and the surface of the mercury falls, the soapstone sleeve falling over the point of the control rod 12 and extinguishing the arc as the mercury leaves the contact rod. The device may be mounted on gimbals.
Patent GB-1178612-A (GB)
Title: Opaque Films
Inventor: SEINER JEROME A
IPC: C09D7/00
Filed: 1967-02-01
Abstract: 1,178,612. Microporous films. PPG INDUSTRIES Inc. 1 Feb., 1967 [1 Feb., 1966], No. 4869/67. Heading B5B. [Also in Divisions B2 and C3] Opaque microporous films may be prepared by casting and drying compositions comprising (a) at least one gellable film-forming polymer and (b) a solvent mixture for the film-forming material comprising at least two miscible liquids, at least one of which is a non-solvent for the polymer and has a lower volatility than other liquids in the mixture, the solvent mixture and polymer forming a single phase, the amount of the low volatility liquid present being sufficient to produce, on removal of the solvent mixture from a film of the composition, a film having a Kubelka-Munk scattering coefficient greater than 0À5 reciprocal mils at 4400 angstroms and greater than 0À1 reciprocal mils at 5600 angstroms, and less than that which, on removal of the solvent mixture, produces a discontinuous film. The films are said to contain discrete closed cells. Many suitable composition ingredients are specified including polymers of acrylic and methacrylic compounds and styrene, casein, gelatin, shellac, cellulose derivatives, polyamides, polycarbonates, polyesters, epoxy resins, phenolic resins and aminoplast resins; ketones, esters, alcohols, hydrocarbons and chlorinated hydrocarbons; and colorants. Examples describe the casting of microporous films from compositions comprising cellulose acetate, cellulose acetate butyrate, cellulose nitrate, ethyl cellulose, curable polyurethane, butylated melamine/formaldehyde resin, high acid number alkyd resin, epoxidized polyester resin, chlorendic alkyd resin, epoxy resins, epoxidized oils, nylon, casein, polystyrene, polymethyl methacrylate, butylated acrylamide/styrene/methyl methacrylate/methacrylic acid copolymer, butyl ether of methylolated acrylamide / styrene / methyl methacrylate/ethyl acrylate copolymer, copolymers of methyl methacrylate with acrylonitrile, styrene, linseed oil, methacrylic acid, methacrylic acid and butylene dimethacrylate, methacrylic acid and lauryl methacrylate, lauryl methacrylate, butyl methacrylate, 2- ethylhexyl acrylate and methacrylic acid, and glycidyl methacrylate and methacrylic acid, and a copolymer of hydroxypropyl and hydroxyethyl methacrylates with methacrylic acid; aliphatic hydrocarbons, toluene, xylene, aromatic naphtha, acetone, methyl ethyl ketone, methanol, ethanol, isopropanol, butanol, diacetone alcohol, ethyl acetate, ethoxyethyl acetate, isopropyl acetate, butyl acetate, butyl benzyl phthalate, phosphoric acid and water; and magenta dye and green and aluminium pigments.
Patent GB-1492751-A (GB)
Title: Engine-ignition systems
IPC: F02P15/00
Filed: 1975-05-01
Abstract: 1492751 Ignition systems SMITHS INDUSTRIES Ltd 1 May 1975 [1 Feb 1974] 04876/74 Heading F1B An ignition system includes an ignition circuit for supplying electrical energy to discharge between electrodes of an igniter 3 that is adapted to be mounted on an engine 18 with one of the electrodes grounded thereto and the circuit is electrically insulated from the engine such as to be grounded thereto at the igniter alone. The ignition circuit may be coupled to the igniter by means of a screened electrical cable 2 and the screening 11 of the cable may be grounded to the engine at the igniter alone. The screening of the cable may be both electrostatic and electromagnetic. Screens (not shown) of material having a relatively high electrical conductivity may be used to partition an ignition unit into three regions. The igniter may have three electrodes, the additional electrode providing a triggering impulse to initiate discharge across a main electrode gap. In Fig. 2 (not shown) the housing 5' need not be connected with the electromagnetic screening of the cable but may be grounded separately to a part of the engine. An igniter of air-gap type may be employed.
Patent GB-693489-A (GB)
Title: Filters
Inventor: STOKES EDWARD ARTHUR
IPC: B01D46/24
Filed: 1950-02-24
Abstract: 693,489. Filters. VOKES, Ltd. Feb. 12, 1951 [Feb. 24, 1950], No. 4878/50. Class 46 [Also in Group XXVIII] Cylindrical filter elements are formed by compressing fibrous material on to a permeable inner cylinder in one or more layers and maintaining it in compression with permeable and flexible wrapping material preferably in the form of a continuous length. The ends of the filter material in the element thus formed are sealed to the cylinder. A perforated cylinder 3, Figs 2 and 4, having end caps 14 is supported by a pair of mandrels 1, Fig. 2, in a framework, Fig. 1, and has secured to it the end, preferably tapered, of a. length of wrapping material 5 carried on a cylinder 4, Fig. 1, supported by a pair of mandrels 2. A constant tension is applied to the material 5 by weights 6 acting on the mandrels to provide preferably equal loading on the roll 5 and cylinder 3. Fibrous filter medium may thus be fed from a roll 10 with little effort between the material 5 and the cylinder 3 as the latter is rotated. The degree of compression of the filter medium 10 by the wrapping material 5 is governed by the choice of the weights 6. When sufficient of the medium 10 has been rolled on to the cylinder 3 to enclose it wholly in one layer or more, any remaining filter medium is pulled off, and a further quantity of wrapping material wound on to the cylinder. Just before this operation is completed a strip of thermoplastic tape is laid across the wrapping and when this has been taken into the element heat and compression are applied to bring about complete adhesion between adjacent layers of the wrapping. Means such as the weights 6 maintain tension in the material 5 during this sealing operation to prevent unrolling of the element during sealing. The tapering of the inner end of the wrapping 5 and the length of the tapered portion are both chosen to ensure that at least one complete roll of the filter medium 10 is applied to the cylinder and is thus in direct contact with the flanges of the end caps 14 before the width of the wrapping is the same as the length of the cylinder 3. The ends of the formed element are further compressed and sealed on to the cap flanges by tensioned metal strip 15 applied by a strapping machine. One end cap is provided with an inlet or outlet. In a modification of the apparatus the mandrels 1, 2 loaded by friction clutches driven by an electric motor instead by weights 6, and the filter medium 10 is in the form of a loose heap which can be fed in by hand or by a rotary comb driven by the motor
Patent GB-1172423-A (GB)
Title: Tape Recording Apparatus
Inventor: BACH WALTER HERMAN
IPC: G11B5/52
Filed: 1967-02-01
Abstract: 1,172,423. Recording transverse tracks on magnetic tape. BACH AURICON Inc. 1 Feb., 1967, No. 4903/67. Heading G5R. The subject matter of this Specification is included in Specification 1,172,424 but the claims relate to the apparatus for recording successive transverse tracks across a driven magnetic tape by rotating a recording and an erase head in a continuous path back and forth across the tape such that the erase head leads the recording head during the traverse part and lags during the return part of the stroke.
Patent GB-116679-A (GB)
Title: Improvements in Tool-bars for Miners' and other Tools.
Inventor: REES ERNEST VINSON
IPC: E05B37/02
Filed: 1918-03-20
Abstract: 116,679. Rees, E. V. March 20, 1918. Picks.-A locking toolbar for locking together miners' picks or shovels &c. through holes in the handles, comprises a bolt or bar a having at one end a head c and at the other end a key-less lock. The lock shown is a letter lock of the known permutation type consisting of rotatable notched disks engaging notches in the end of the bar a, the lock being removable when the proper letters are in alinement with the index mark e<2>. A washer e is provided to prevent the tools from slipping-off the bar when the lock is withdrawn.
Patent GB-668301-A (GB)
Title: Improvements in and relating to an automatic record-changing talking machine
IPC: G11B17/16
Filed: 1949-02-23
Abstract: 668,301. Automatic gramophones. THORENS SOC. ANON., H. Feb. 23, 1949. [Feb. 28, 1948] No. 4931/49. Addition to 606,679. Class 40 (ii). An automatic record-changing gramophone of the kind described in the parent Specification which plays successively the underside of the lowermost record 9a of a stack 9 on a spindle 12, and then the upper surface of the record 9a, after it has been dropped over a lower spindle 20, is provided with a spring-urged pivoted member 10 to support the stack of records. A record is released by moving a shaft 19, Fig. 2, slidable in the spindle 12. The lower spindle 20 may be integral with a record support 21 which has a keying piece 22 to engage the turntable 5. The support 21 is preferably of smaller diameter than the records to be played, to allow them to be lifted easily by their edges. Records are placed on the top spindle by removing the support 21 placing the records on the spindle 20, returning the support, and then moving the records up over the member 10. In a modification, Fig. 3 (not shown), the lower spindle may be removably attached to the driving shaft 4, for loading the records, by a pin integral with the spindle shaft. The pick-up arm 7 is rotatable through 180 degrees. Upper and lower driving shafts 15, 4 are driven in opposite directions by separate motors. The Specification, as open to inspection under Sect. 91, comprises also a construction in which the spindle 40, Fig. 4 (Cancelled), is rigid with the shaft 4 and the records are inserted by making the spindle 12 shorter or by raising the bracket 17<SP>1</SP> of the upper motor. This subject-matter does not appear in the Specification as accepted.