baber/WOPTO huggingface dataset:
Patent GB-1509185-A (GB)
Title: Fluid driven turbo machines
IPC: F01D5/22
Filed: 1975-08-04
Abstract: 1509185 Turbine blades REYROLLE PARSONS Ltd 4 Aug 1975 [2 May 1974] 19297/74 Heading F1T To prevent untwisting of adjacent rotor blades 1, e.g. of an axial-flow steam turbine, bridged by U-section shroud members 3 engaging shoulders 2 on opposite sides of each blade at or adjacent the tip, the blades are coupled together by a member which is connected to the leading edge of one blade and to the trailing edge of the adjacent blade so that in operation it becomes loaded under tension. As shown, the shroud members 3 constitute the coupling members and are attached to the blades by rivets 4, or by bolts or screws. Again, the coupling members may be bolts directly connecting the blades, Fig. 2a (not shown), or Fig. 3a (not shown), connecting the shroud members to the blades.
Patent GB-121594-A (GB)
Title: Electric Time Switch.
IPC: G04C23/24
Filed: 1918-11-23
Abstract: 121,594. Landis & Gyr Akt.-Ges. Dec. 18, 1917, [Convention date]. R o t a r y interrupters; clockwork actuation. - An electric time switch comprises a winding spindle a carrying a fixed toothed wheel c driving a clockwork train (including the dial d with adjustable setting- arms p) and a loose wheel h gearing with a pinion on a shaft i which carries the movable contacts m of the switch and a catch wheel k. The driving - spring is mounted between t h e wheels c, h, one end being connected to the wheel c to drive the clockwork train and the other end attached to the shaft and tending to drive the switch member through a ratchet f on the shaft and a pawl g on the wheel h. The catch wheel is held bv a double-ended catch l, which is rocked periodically by the arms p in one direction or the other so as to release the catch wheel and allow the shaft i to rotate step by step. The catch is so arranged that the switch shaft moves a greater distance when tripped to break the circuit than when tripped to close the circuit, thereby avoiding sparking at break. The catch may be operated directly by the arms p.
Patent GB-1459665-A (GB)
Title: Revolver
IPC: F41A19/10
Filed: 1974-05-02
Abstract: 1459665 Revolvers MANUFACTURE DE MACHINES DU HAUT-RHIN 2 May 1974 [9 May 1973] 19321/74 Heading F3C In a revolver, a trigger 74 which actuates a hammer 42 is returned by a spring 110 in the form of a resilient arm acting on a curved thrust surface 120 of a return slide 96 connected to the trigger, the thrust position changing according to movement of the slide so that the component of the spring force parallel to the slide movement is substantially constant; the slide, upon trigger return, rotates the hammer into a safety, non-percussion position. The trigger 74 acts through a connecting arm 104 on to the slide which moves in a frame 10 of the revolver on four rollers 98a, 98b, Fig. 3; one roller may provide the thrust surface 120. Spring thrust is adjustable by a pin 116. The trigger 74 acts through an arm 80 in a ratchet 86 to index a six chamber cylinder 24 and through a finger 94 integral therewith on an arm 66 pivoted to the hammer 42 to move the latter against an adjustable return spring 56 to a rearward position ready for release; the finger 94 releases the arm 66 at the end of the trigger stroke to release the hammer. During this action a bracket 78 locks the cylinder 24 in an indexed position. A further safety device is an arm 90 actuated by the trigger which abuts a surface of the hammer 42 to retain it away from the percussion position.
Patent GB-784653-A (GB)
Title: Improvements connected with printing presses
IPC: B41F3/46
Filed: 1955-07-05
Abstract: 784,653. Proof-printing presses. HARDING, L. June 1, 1956 [July 5, 1955], No. 19360/55. Class 100(2) In a proofing press of the type wherein the impression cylinder rolls over the type bed the cylinder comprises a rubber surface 10 surrounding a metal tube 11 which is provided at each end with a bush 12 rotatably mounted on a shaft 13. The ends 14 of the shaft 13 are reduced in diameter and eccentric to the shaft itself, and have rollers or discs 15 rotatably mounted thereon which are adapted to run along bearers 22<SP> </SP>on the press frame. Each disc 15 drives the cylinder through the medium of a plate 17 provided with four open-ended slots therein which are engaged by pins 20, 21 extending respectively, from the bush 20 and the disc 15. One shaft end 14 extends through the mounting 23 and bar secured thereto a hand-wheel 25. On rotating the wheel 25, the periphery 10 of the impression cylinder can be raised or lowered relatively to the type bed due to the ends 14 being eccentric to the shaft 13.
Patent GB-330781-A (GB)
Title: Improvements in or relating to removable book covers
IPC: B42D3/04
Filed: 1929-06-24
Abstract: 330,781. Kitcat, L. G. June 24, 1929. Loose covers.-Removable protective covers for books of the kind comprising a sheet A, Fig. 1, of flexible material, adapted to be folded around the back and covers of the book, and provided at the ends with stiffening-strips B<1>, B<2> for disposal inside the permanent covers, are made of such a size as to allow of the stiffening-strips, or a part thereof, being turned underneath those parts of the removable cover that lie on the inner side of the permanent covers C<1>, C<2>, Fig. 3. In the form of cover shown in Fig. 2, one stiffening- strip B<2> has an extension or flap b<2>, the cover being disposed as shown in Fig. 4, with a flap b<2> passing over the edge of the permanent cover and lying beneath the removable cover A. Alternatively, the flap b<2> may be doubled on itself, so as to lie wholly on the inside of the permanent cover. The removable cover is preferably of transparent paper, and is secured to the stiffening-strips, which may be of stiff paper or card, by means of adhesive, the edges of the cover being serrated or perforated, in order to secure better adhesion.
Patent GB-194778-A (GB)
Abstract: 194,778. Poincet, A. Dec. 15, 1921. Hair-curling appliances. - An electrically-heated container for use in hair waving &c. is spaced by one or a pair of apertured rings of insulating-, material from a hollow insulating handle so as to leave an annular space in which air can freely circulate. The handle b is composed of sheets of cork disposed on a cylindrical body c of metallic gauze. A leather &c. cover d may be provided. An insulating-ring e secures this handle to the heater a which is composed of a metal tube f, electric resistance wiring h, mica i, and cork j attached by an agglutinant. The mica and cork are held against bent-out extremities of the tube f by the ring e. Air can circulate through holes o and the space p. The handle b is made longer than the heater a and is reduced at n to avoid burning of the scalp. In a modified construction. the tube f extends along the entire length of the handle, and is spaced therefrom at each end by. an insulating-ring; the heater in this case may fit loosely to allow circulation of air. When intended for heating curling-irons, the apparatus may be enclosed in a metal casing provided with feet or supports.
Patent GB-973254-A (GB)
Title: Polarity-sensitive oscillator
IPC: H04L27/12
Filed: 1962-05-21
Abstract: 973,254. Frequency shift radio signalling. GENERAL ELECTRIC CO. May 21, 1962 [May 31, 1961], No. 19482/62. Drawings to Specification. Heading H4P. Two tunnel diodes in back-to-back relation are shunted by capacitors of different value, and the combination connected in series with an inductor and an RC bias network so that in response to pulses of different polarity applied to the network different radio frequencies are produced.
Patent GB-221061-A (GB)
Title: Improvements relating to direct current electric motors
IPC: H02P7/28
Filed: 1923-07-31
Abstract: 221,061. Cooch, H. July 31, 1923. Speed-maintaining systems.-A direct-current motor is automatically controlled for constant speed by taking off alternating current from tappings or from a coupled generator, and passing the alternating current through a periodic contact device so as to produce compensatory impulses in the field or armature of the motor or in the field of an auxiliary generator connected in the motor circuit. In the arrangement shown in Fig. 1, the motor armature winding 1 is tapped so as to give alternating current to a transformer 5 the secondary of which is connected to a rated vibratory contact device 8, 9 and to a condenser 13 shunted across a resistance 10 in circuit with the motor field 2. Any departure from a set relation between the successive vibratory contacts and the alternating-current periods alters the effective value of the resistance 10, adjustments being made so that the alteration corrects the speed of the motor. The vibratory contact may be a double-pole reversing switch, or may be replaced by a rotary brush switch. Two or more motors may be simultaneously controlled so as to run synchronously.
Patent GB-1271171-A (GB)
Title: Stabilized abs polymer compositions
Inventor: SISCO WILLIAM E
IPC: C08K5/00
Filed: 1970-04-23
Abstract: 1,271,171. Stabilized ABS polymer compositions. AMERICAN CYANAMID CO. 23 April, 1970 [6 May, 1969], No. 19650/70. Headings C3G and C3P. Polymeric compositions stabilized against the effects of heat and oxygen comprise (a) an ABS polymer (as defined below), (b) from 0À05- 2-0%, based on the weight of (a), of mannitol and/or sorbitol, and (c) 0À05-2À0%, based on the weight of (a), of a 2,2<SP>1</SP>.methylene.bis-(4,6- dialkylphenol) wherein the alkyl groups contain 1-6 carbon atoms and those at the 6-position are branched. (The ABS polymer is defined as being derived from acrylonitrile, butadiene and styrene, or their substituted derivatives, and may be a single polymer or a polymer blend. Specified products are (i) a blend of a styreneacrylonitrile copolymer with a butadieneacrylonitrile copolymer and (ii) a blend of a styrene-acrylonitrile copolymer with a graft polymer obtained by polymerizing styrene and acrylonitrile on to polybutadiene. The compositions may also include secondary stabilizers, e.g. organic phosphites or diesters of thiodipropionic acid. Other optional components include lubricants (e.g. zinc stearate), fillers, dyes and pigments (e.g. titanium dioxide). The compositions can be formed into film, sheet or other articles.
Patent GB-1512723-A (GB)
Title: Method of making magnetic transducer heads
IPC: G11B5/133
Filed: 1975-05-09
Abstract: 1512723 Flying head assemblies VRC CALIFORNIA Inc 9 May 1975 [13 May 1974] 19696/75 Heading G5R A flying head assembly is produced from a planar magnetic ferrite core 20, Fig. 3, and a support piece 12 by fixing the core 20 to the support 12 so that the plane of the core is perpendicular to a frontal surface of the support, and thereafter narrowing the core to define the track width by showing material from a side portion of the core adjacent the frontal surface using a tool advanced against the core in a direction perpendicular to the plane thereof. The support 12 comprises a ceramic shoe 14 glass-bonded to a magnetic ferrite shield 16 and initially formed with a groove 26 and an opening 18 in which the planar ferrite core 20, having a ceramic-filled transucing gap 22, is glass-bonded. The core 20 is then lapped to form a desired depth for gap 22 and groove 26 is ground to remove excess glass therein resulting from the core-bonding step. The front part of the core is then narrowed to a desired track width by lapping with a tool located in groove 26, such narrowing exposing a ridge (30), Fig. 4 (not shown), on the core, or glass bead being bonded on to this ridge to support the narrowed core. The groove 26 is then reground and widened to its final dimension removing excess glass of such support, the final groove dimension determining the flying height of the finished assembly in use thereof. The support piece 12 and core 20 are again lapped to a final transducing gap depth while removing portions of the glass support on the core ridge (30) and then the frontal surface of the shoe 14 is contour lapped to a radius of about 270 inches to provide a smooth air bearing surface. The ferrite core 20 may initially have dimensions of 0À12 Î 0À06 x 0À004 inch wide, the frontal part being reduced to a width of 0À001 inch during manufacture as above.
Patent GB-682996-A (GB)
Title: Driving means for gas meters
IPC: G01F3/22
Filed: 1950-08-08
Abstract: 682,996. Gas meters. WILSON GAS METERS, Ltd., G., and JOHNSON, D. E. Aug. 31, 1951 [Aug. 8, 1950], No. 19723/50. Class 54. A dry gas meter has two measuring chambers each controlled by a valve 37 driven from a spindle 24 which through a tangent arm 31, a link 33 and an arm 22 on a flag shaft 18 is connected to a flexible diaphragm in the chamber controlled by the valve, the two spindles 24 being geared together to rotate in unison. Each valve is connected to its spindle by a connecting rod 45 and a crank arm 44 and is guided in its reciprocation by a rod 48 which slides in forks 49 secured to a plate 21 which also supports the valve seatings. A gear 27 connected through a shaft 41 to the index mechanism 42 also meshes with gears 28, 29 fast with the spindles 24 which are journaled in a casing 26 supported on a bracket 36. The plate 21 also serves to form a space around the measuring chambers which is connected with the outlet pipe 56, the inlet pipe 55 delivering gas to the upper side of this plate. The casings for the meter and the measuring chambers may be formed as pressings, castings or mouldings. Poppet or oscillating valves may be used.
Patent GB-885893-A (GB)
Title: Improvements in or relating to the reproduction of photographic or similar images
Inventor: AITKIN LAURENCE WALTER
IPC: G03B27/08
Filed: 1959-06-09
Abstract: 885,893. Photographic contact, projection or composite printing; optical projection. TECHNICOLOR Ltd. May 30, 1960 [June 9, 1959], No. 19728/59. Classes 97(1), 98(1) and 98(2). Photographic contact or projection printing, or optical projection, apparatus includes means for imparting to the two films, or to the film and any other closely adjacent member in the light path, relative vibration having at least a component perpendicular to the opposed surfaces of the film and the other member thus reducing interference effects due to the intermediate air film, and sticking. In the projection shown in Fig. 1, an air jet 18 is directed on to the edge of a film 12 adjacent a transparent member 11 in the projection gate of a projection system (or enlarging system). The air-jet may also be applied remote from the gate. In the composite printing arrangement shown in Fig. 4 positive and negative films 28, 27 are relatively vibrated, preferably at ultra-sonic frequency, by an electromagnetic-acoustic transducer 42 situated behind the printing gate 30 and connected thereto by the funnel 43. Alternatively, a piezo-electric material such as barium titanate may be used as a transducer and oscillated at audio- or ultrasonic frequency by a suitable electrical oscillator. The film vibration serves also to prevent friction in the film gate.
Patent GB-217539-A (GB)
Title: Improvements in illuminating appliances
IPC: F21V5/00
Filed: 1923-08-01
Abstract: 217,539. Dorey, W. A. June 12, 1923, [Convention date]. Street and like lamps.-In a lamp, more particularly applicable to street lighting, a source of light is surrounded by an inner refracting envelope and an outer envelope which latter is provided with plain segments and prismatic segments adjacent thereto and so arranged as to refract light towards the plain segments to intensify the direct beams of light emitted therethrough. The form shown in Fig. 6 gives a twoway beam of light suitable for illuminating a curved road. In this case the outer envelope has only two plain segments and in addition the inner surface of the bottom portion 77 of the inner refractor 40 is covered in part with concentric prisms 106 and in part with radial prisms. A curved reflector 97 of white porcelain, enamelled steel or other material having a glossy white surface, is arranged on each side of the lamp and is supported from a housing 90 of the same material. A modified form described as being suitable for illuminating substantially straight roads, is similar to that shown in Fig. 6 and in addition portions of the inner surface of the inner refractor are provided with vertical prisms.
Patent GB-187697-A (GB)
Title: Improvements in grates designed to fire-boxes of boilers, either maritime or stationary
IPC: F23H13/00
Filed: 1921-07-22
Abstract: 187,697. Mazzucchelli, F. L. July 22, 1921. Fire-bars and grates. - In fire-bars arranged to form a grate, as shown in Fig. 3, where the air space between adjacent bars varies inversely as the distance from the source of air inlet, either uniformly or in steps longitudinally of the bars, a section, as shown in Fig. 2, is employed. The upper surface 6 of the bar is flat while the sides 3 are concave and the lower edge 4 is convex.
Patent GB-476377-A (GB)
Title: Screw pump with axial relief
IPC: F04C2/16
Filed: 1937-07-17
Abstract: 476,377. Meshing screw engines. LEISTRITZ, P., and BURGHAUSER, F. July 17, 1937, No. 19855. Convention date, Aug. 13, 1936. Addition to 452,906. [Class 110 (ii)] Means for balancing axial thrusts on screw rotors a, b, c include collars e,f, g on the spindles as in the parent Specification, and a chamber h<1> containing fluid under pressure to balance the thrust on the rotors from the delivery chamber h (in the case of a pump). Fluid enters the pump through a suction chamber s. Passages o, l permit pressure fluid to pass from grooves r in the upper bearings to the space p and lower grooves r to the chamber h<1>. The upward pressure may also balance, in part or wholly, the weights of the rotors. The bearings are lubricated by the fluid being pumped. External pipes may replace the passages o, l. The chamber h<1> may be formed in the casing cover c. The invention is applicable to pumps having two, or more than three rotors. Rotor spindles may be coupled by spur wheels.
Patent GB-182340-A (GB)
Title: Improvements in or relating to electric cables
IPC: G01M3/18
Filed: 1921-07-25
Abstract: 182,340. Lee, L. R. July 25, 1921. Addition to 164,965. Indicating faults.-Faults in a cable are indicated by the galvanic action set up on penetration of water into a cable by sheet wrappings C, D of different conducting materials separated by a permeable insulating layer F. Each wrapping may comprise a pair of spirally-wound paper or textile strips coated with carbon or metal foil or powder in contact with one or more intermediate copper wires E, E<1>. the two wires being connected to an indicating instrument. The conductive material for the paper coils must allow the penetration of water.
Patent GB-700333-A (GB)
Title: Improvements in drill wagons for use in tunnelling
IPC: E21D9/12
Filed: 1951-08-24
Abstract: 700,333. Drill wagons. AKTIEBOLAGET ATLAS DIESEL. Aug. 24, 1951 [Sept. 20, 1950], No. 19973/51. Class 124 A drill wagon comprises a carriage movable on the ground, a platform carried by the carriage at substantially a man's height and movable into a position lengthwise of the carriage in which one end of the platform is supported on the carriage, a support for the extended end of the platform and means on the platform for forming seats for the feed legs of drills. As shown, a framework structure 4 is formed on a carriage mounted on wheels 2 and a platform 7 is arranged to be supported, at substantially a man's height wholly on the framework 4 or to have one end supported by the framework and the other by one or more expanding supports 9. The platform may comprise two or more beams 7 having planks 5 fixed transversely to them to give seatings for the feed legs of drills. Supplies of air and water may be fed to the wagon through flexible tubes. Side extensions may be provided on the platform and be supported in the extended position by rods 24. A clamp 11 may hold the wagon steady on the rails during drilling.
Patent GB-862676-A (GB)
Title: Method and apparatus for producing filter mouthpieces for cigarettes or the like
IPC: A24C5/47
Filed: 1958-06-23
Abstract: 862,676. Cigarette-making machines. KÍRBER, K. June 23, 1958 [Sept. 21, 1957], No. 20008/58. Class 130. A recessed mouthpiece comprises a filter plug 35, Fig. 1, flush with a small tube of relatively stiff paper 13, the plug and tube being surrounded by a thin paper wrapper 12. A double length plug 31, Fig. 1, on a conveyer 32, Fig. 5, is bisected and transferred to a drum 36 to which cigarettes 7, 8 are fed on either side of the plug and the parts 34, 35, Fig. 1, with their associated cigarettes are moved apart and then transferred to a drum 10. Connecter sheets 12 with recess strips 13 of stiff paper thereon are attached to the groups and wrapped therearound on wrapper drum 11 so that the strip 13 forms a tube abutting the ends of the plugs, the resultant assemblages being bisected to form two mouthpiece cigarettes. The recess strips 13 are cut from a strip R and fed to the previously gummed connector sheet material V which is cut in the spaces between strips 13 to form connector sheets. If double length filter plugs are to be formed for subsequent attachment to cigarettes, the step of supplying the cigarettes 7, 8 to either side of the plug on the drum 36 is omitted. A multi-length plug may also be produced by a connector sheet 12, Fig. 7, bearing several recess strips 13 and plugs 34.
Patent GB-809943-A (GB)
Title: Improvements in and relating to clothes drying machines
Inventor: BALSHAW LEONARD BUNN
IPC: D06F58/02
Filed: 1954-07-08
Abstract: 809,943. Drying clothes. ENGLISH ELECTRIC CO. Ltd. July 1, 1955 [July 8, 1954], No. 20013/54. Class 34(2) A tumbler clothes drier with rotary drum 5 has air drawn through an inlet in the door 13 and the drum 5 by a centrifugal fan 11 which expels the moist air through a vertical duct 14 connected to an outlet orifice in the top cover 2 provided with a lint trap in the form of a hollow perforate body 15 secured to a flanged and slotted plate 16 and resting in position by gravity. Specification 809,944 is referred to in the Provisional Specification.
Patent GB-397651-A (GB)
Title: Improvements in or relating to preparyment meter mechanism
IPC: G07F15/06
Filed: 1932-07-15
Abstract: 397,651. Prepayment mechanism for meters. GRASEBY, R. C., Venner Works, Kingston-By-Pass Road, New Malden, Surrey. July 15, 1932, No. 20039. [Class 27.] Mechanism for prepaying basic charges.-In a prepayment meter, particularly an electricity meter, having means for collecting a basic charge, such as rent, a switch controlling device, comprising a disc 2 with a gapped flange 3 is fixed to a spindle 12 carrying the radius arm of the planet wheel 11 of a first differential, to one sun-wheel 5 of which is fixed a coinactuated star-wheel 1. The other sun-wheel 6 is connected by gears 7, 8, 9 to one sun-wheel 10 of a second differential, of which the other sun-wheel 14 is driven through gearing 15, 16 by a constant speed motor, and the planet wheel 17 is mounted to rotate bodily with a spindle 19 connected to the motor mechanism of the meter. The connection between the spindle 19 and the meter comprises wheels 18, 18<1>, 20, the wheel 20 being free on the spindle 12 and driving through gearing 21 a flier 22 the arms 23 of which co-operate with flats 25 on a barrel 24 driven by the meter. When the star-wheel 1 is rotated by a coin, the disc 2 is rotated against the action of a spring 13 which constitutes the driving means for returning the disc 2 to zero as the sun-wheel 6 rotates. During consumption the meter permits the flier 22 to rotate and consequently the planet wheel 17 moves round bodily permitting rotation of the wheels 10, 6 and the planet wheel 11. The constant speed motor rotates the wheel 17 axially, the drive being transmitted to the sun-wheel 6. The constant speed motor may be arranged to drive the disc 2 beyond zero in order to collect arrears of rent. Specifications 1363/14 and 294,739, [both in Class 27, Coin-freed apparatus &c.], are referred to.