baber/WOPTO huggingface dataset:
Patent GB-907623-A (GB)
Title: Improvements relating to electronic apparatus for focussing a beam of electrons
Inventor: WALSH DONALD
IPC: H01J29/66
Filed: 1959-09-30
Abstract: 907,623. Electron lenses. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 28, 1960 [Sept. 30, 1959], No. 33196/59. Drawings to Specification. Class 39 (1). A magnetic electron lens system for focusing a beam of electrons into a flat strip, e.g. for interaction with a planar microwave structure, includes two transverse-field magnetic lenses, the first lens tending to converge the beam in the y-plane and to diverge it in the x-plane and the second lens tending to diverge the beam in the y-plane and to converge it in the x-plane, the relative strengths and spacing of the two lenses being so adjusted that the beam finally emerges parallel to the longitudinal axis. Each lens may be in the form of a U-shaped electro- or permanent magnet with slanted pole-faces to produce a curved field. The fields of the two lenses are in opposite directions, thus deflecting the beam in opposite directions.
Patent GB-883878-A (GB)
Title: Photo-electric scanner for line-following devices
Inventor: KING BRIAN EDMUND
IPC: B23Q35/40
Filed: 1959-09-30
Abstract: 883,878. Photo - electric line followers. BRITISH OXYGEN CO. Ltd. Sept. 27, 1960 [Sept. 30, 1959], No. 33215/59. Class 40(3). In a photo-electric scanner for line following devices, such as are used for controlling machine operations, for example the movement of the cutting nozzle of a flame cutting machine, the photo-electric cell 26 (a phototransistor) is mounted in a carrier 18 which receives in bearings 16 an eccentric spindle 15 on a shaft 14 rotated by an electric motor 10 and is resiliently restrained against rotation by a spring 20 anchored to a casing 19 secured to the body of the electric motor. The photo-electric cell performs an orbiting motion without rotating about an axis. Electric connections 27 to the photo-electric cell may thus. be made without the use of slip rings. If the connections are sufficiently robust to be capable of resiliently restraining carrier 19 against rotation, spring 20 may be dispensed with. In a modification, a spindle projecting concentrically from the carrier may be received in an eccentric socket on the electric motor shaft.
Patent GB-631187-A (GB)
Title: Improvements in mountings for miniature cameras
IPC: F16M11/04
Filed: 1946-11-09
Abstract: 631,187. Camera mountings. KINGSBURY, D. Nov. 9, 1946, No. 33340. [Class 52 (iii)] A stand-head mounting for miniature cameras comprises a segmental housing a slidably mounted in an arcuate seating b in a pedestal base which may be mounted on a tripod or the like. The camera h is clamped in the housing by a screw e between removable end-plates g whose inner faces conform to the shape of the camera and the housing is clamped in the seating b by means of a screw l.
Patent GB-1010297-A (GB)
Title: Automatic control system for hoisting machine
IPC: B66D1/20
Filed: 1962-08-30
Abstract: 1,010,297. Winches; tower hoists. S. T. BUCK. Aug. 30, 1962, No. 33406/62. Headings B8B and B8H. A winch drum 18, Fig. 4, mounted on a portable tower hoist is driven from a motor 10, having an idling speed and a working speed, and coupled through electrically controlled clutch means 15 incorporating " up " and " down " driving elements which are automatically disengaged when the lifting means reaches predetermined positions. An electrically controlled brake unit 16 is geared to the drive system and is automatically disengaged with operation of the clutches. The brake unit 16 is coupled to a centrifugal over-speed governor 58 which operates during lowering to energize the " up " clutch device to provide additional braking. A tensioning device 27 is also provided for the cable 6 and operates to disconnect the clutches in the event of slackness or breakage in the cable. The clutch units (not shown) are associated with separate drive shafts 33, 48, Fig. 5, having oppositely rotating pinions 44 and 49 in engagement with a large pinion 29 on the winch drive shaft 17. The main housing 14 for the pinion 29 and clutch units is pivotally mounted on the shaft 17 and is adjustable angularly by a turnbuckle 28 for tension adjustment of the drive belt 12 from the motor pulley 31. The electrical push-button starting system incorporates a time delay device whereby engagement of the clutches is prevented before the solenoid operated motor throttle lever 89 has been actuated to bring the motor from its idling speed to its working speed. The control incorporates limit switches 65, 67, Fig. 14, actuated by adjustable nuts 60, 61 on a threaded shaft 59 mounted in a housing 22 and driven from the winch drum 18 through a chain drive 20, 21. The nuts have peripheral grooves 60 for adjustable engagement by a spring-loaded locking bar 63 and may be set so that the winch is stopped at any required upper and lower position. A third limit switch 69 may be incorporated for actuation towards the end of the downward movement of the hoist and operating to reduce the motor speed. Reference is made to the use of the winding apparatus on a tower hoist which is hinged in three sections 2a, 2b, 2c, Fig. 2, and which are collapsed for transporting. The hoist frame 1 also has retractable wheels 9. Supplementary drums 25, 26 may be used for power take-off and for raising and lowering the tower sections.
Patent GB-1511192-A (GB)
Title: Machine guidance
IPC: G01C7/06
Filed: 1976-08-11
Abstract: 1511192 Optical direction finding JOHN MOWLEM & CO Ltd 11 Aug 1976 33419/76 Addition to 1454515 Heading H4D The target described in Parent Specification is rendered more sensitive to tilting of the device to which it is attached, in particular the tunnelling shield, by making the rows of light detectors 10a, 11a, no longer parallel to the axis of the laser beam 12 but skewed with respect thereto.
Patent GB-305327-A (GB)
Title: Improvements in electrically driven timepieces
IPC: G04C1/02
Filed: 1927-12-10
Abstract: 305,327. Bold, H. Dec. 10, 1927. Electric clocks.-In an electric clock in which a weighted driving arm pivoted on the minute wheel arbor, is re-energized electromagnetically, indicator means connected to the weighted arm are provided to show when the electromagnetic force is insufficient to raise the weight. The driving arm 11, weighted at 13, is pivoted at 7 on the minute wheel arbor and carries a pawl 14 driving the ratchet wheel 8 rigid with the arbor 7 and connected by gearing 1 - - 6 with an escapement which is controlled by a pendulum or by a balance. The weight is connected electrically in series by a wire 16 with the magnet windings 17 and contacts, to close the magnet circuit, with a surface 24 on a bell-crank 20, 21 pivoted at 22 and carrying the armature 23. A stop 27 limits the downward movement of the arm 20. When the weighted lever sinks the weight 13 contacts with the surface 24 and the magnet rocks the bell-crank 20, 21 clockwise so that the weighted lever is kicked upwards by the surface 24. A two-armed indicator member 31, 35 pivoted at 32 to the fixed frame of the clock is connected by a pin and slot 33, 34 to the weight 13 so that when the arm 11 is in its lowest position a red dot 37 on the indicator member shows through a hole 36 in the front plate of the clock and through a hole in the dial. In a modification, the bell-crank carrying the armature is pivoted at one end.
Patent GB-336828-A (GB)
Abstract: 336,828. International Pulverising & Grinding Machines (Parent) Corporation, Ltd., and Legrand, P. Nov. 7,1929. Disc and like mills for disintegrating rubber &c. comprise a fixed disc 5 formed with a central feed inlet 6 and a face 5a undulating in a radial direction mounted opposite a rotary disc 1 formed with an opposed undulatory face 1<a> spaced apart from the fixed disc by a distance which diminishes gradually toward the periphery of the discs, the faces of the discs being formed with rasp teeth 7 in opposed relationship and of a size diminishing toward the periphery. Rasp teeth 10, 12 may be formed on the outer surfaces of the discs and inner surface of a sieve 11 respectively. The teeth may be formed of emery, corundum &c. and spacing discs 13 may be inserted under the fixed disc to regulate the spacing of the discs. The undulatory surfaces may be formed as flat surfaces disposed at obtuse angles to one another and being of angular form extending round the discs concentrically with the axis of rotation.
Patent GB-340692-A (GB)
Title: Dialling handle for use with automatic telephone
IPC: H04M1/23
Filed: 1929-11-06
Abstract: 340,692. Impulse transmitters. BONE, A. J. and BONE, G. A., Kenarede. Hockley Rise, Hawkwell, Essex. Nov. 6, 1929, No. 33753. [Class 40 (iv).] A device for operating the dial switch of an automatic telephone instrument comprises a handle 1 carrying a rotatably and detachably mounted member 2 having a rubber or like covering 3. Specification 264,709, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-1081565-A (GB)
Title: Improved bogie for trucks and other heavy vehicles
IPC: B60G11/44
Filed: 1965-08-06
Abstract: 1,081,565. Tandem axle suspensions. R. F. WHITEHEAD. Aug. 6, 1965 [Aug. 7, 1964], No. 33789/65. Heading B7D. A tandem axle bogey for a road vehicle comprises a pair of bracket members 61, 61A, for attachment to the vehicle chassis, welded to a transverse trunnion member 11 which has at each end a rotatable hub 20 to which is clamped a pair of leaf-spring assemblies whose down-turned ends bear upon pins supported by lugs 73, 74, 73A, 74A extending upwardly and downwardly from the tandem axles, of which the front axle 12 is live and the rear axle 15 is trailing. A pair of longitudinally disposed torsion arms 43, 43A extend laterally between the trunnion 11 and front axle 12 from downwardly depending lugs and torsion arms 24 and 51 extend centrally between the rear axle 15 and trunnion 11, and trunnion 11 and front axle 12, respectively, from upwardly extending legs. A torsion resisting wishbone member 31 extends between lugs depending downwardly from the rear axle 12 and trunnion 11. The connections between the various torsion members and the lugs may be by means of rubber bushed pins, or, in the case of the wishbone member 31, by means of shackle pins. The wheels may be single or double. The arms 36, 36A of the wishbone member may be separate or integrally connected together.
Patent GB-1592161-A (GB)
Title: Biphenyl carboxylic esters and their use as liquid crystal materials
IPC: C07C43/23
Filed: 1976-08-13
Abstract: The liquid-crystal material is a mixture of a plurality of compounds, of which at least one is a cholesteric liquid-crystal compound having a molecular helical pitch. Said cholesteric compound is an ester of the formula <IMAGE> in which n is 1, 2 or 3, and R is straight-chain or branched alkyl having up to 10 carbon atoms, it also being possible for this alkyl to contain a centre of chirality. The liquid-crystal material is suitable for use in electro-optical display devices of the phase-change type.
Patent GB-1387586-A (GB)
Title: Aluminium based alloys
IPC: C22C21/00
Filed: 1971-07-20
Abstract: 1387586 Cracking at specified temperatures BRITISH ALUMINIUM CO Ltd and TI (GROUP SERVICES) Ltd 27 June 1972 [20 July 1971] 33922/71 Heading B3N [Also in Division C7] A non-heat-treatable aluminium base alloy containing at least 5% Mg or at least 1% Zn or a heat-treatable aluminium base alloy containing one or more of Cu, Mg, Zn, Si, Li and Mn are made superplastically deformable by including therein 0À3-0À8% in total of one or more of Nb, Ni, Ta and Zr, substantially all of which is present in solid solution. The alloy is made by casting a melt at at least 775‹ C. (e.g. 775- 925‹ C.) to produce a cell size in the casting not above 30 microns and plastically working the casting at not substantially above 550‹ C.
Patent GB-944261-A (GB)
Title: Improvements relating to water closets
Inventor: CHEETHAM COLIN REGINALD
IPC: A47K13/02
Filed: 1961-09-22
Abstract: 944,261. Pivoting and hinging seats and lids. SHIRES & CO. (LONDON) Ltd. Oct. 1, 1962 [Sept. 22, 1961], No. 33981/61. Heading E1C. A hinged seat a for a watercloset or sanitary pan comprises a one-piece moulding in polypropylene which includes seat and base portions b, d joined together as shown in Fig. 1 by an integral flexible web c of reduced thickness, the portion d being secured to the pan, and the web c providing a hinge about which the portion b can swing relative to the portion b. The portions d, b and the web c are moulded to lie in the same plane so that with the portion d attached to the pan, the portion b is in its lowered position relative to the pan when the web c is unflexed. The seat a is clamped to the pan by a clamping bar g (Figs. 5 and 6) mounted on the base portion d and bolts h to pass through the portion d and through holes in the pan top secured by nuts. A hinged lid may be combined with the seat a which comprises a one-piece moulding in polypropylene and is made up of a base portion k joined to a lid portion j by an integral flexible web l, which provides a hinge about which the portion j can swing relative to the portion k which is mounted between the portion d and the bar g, the bolts h passing through the portions k and d. The lid-base portion k is preferably of L section, being then moulded as shown in Fig. 6, a portion m thereof being mounted on the portion d so that the portion j extends upward when raised relative to the pan when the web I is unflexed. In a modified arrangement a hinged seat has a hinged lid in combination therewith, both being formed in the same one-piece moulding, the seat-base portion affording a hinge base common to both the seat and lid and having the lid portion joined thereto by a second integral flexible web.
Patent GB-965616-A (GB)
Title: Automatic tension control for endless conveyor system
Inventor: SKINNER NORMAN PHILIP
IPC: B65G23/44
Filed: 1962-09-05
Abstract: 965,616. Endless conveyers. BAGSHAWE & CO. Ltd. May 24, 1963 [Sept. 5, 1962], No. 34016/62. Heading B8A. An endless conveyer strand 11 is driven by a master drive station 12 operating at a predetermined speed or substantially so with a floating tensioning device 20 to keep the strand 11 taut downstream of the master drive station 12. Additional drive stations 13, 17 are controlled respectively by tension sensing devices 15, 16 and 18 to maintain a substantially constant tension in the strand 11. Fig. 3 shows one form of sensing device in which portion 23 of the conveyer track is fixed and portion 25 has limited movement, the tension in the strand normally forcing the ends of these portions together against springs 34 so that a microswitch 36 is normally closed by an abutment 37 on portion 25. If the strand tension slackens the springs 34 force portions 23, 25 apart and thus open the microswitch 36 breaking a circuit and initiating tension compensating control by the associated additional drive station.
Patent GB-413561-A (GB)
Title: Improvements in or relating to television and like facsimile telegraph systems
IPC: H04N5/08
Filed: 1933-12-04
Abstract: 413,561. Television. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 4, 1933, No. 34035. Convention date, Dec. 2, 1932. [Class 40 (iii).] Television and like synchronizing signals consist in reductions of the transmitted current to zero, and the picture signals vary upwards from a minimum value. Transmitter, Fig. 2. Light from the scanned object A C normally falls on a light-sensitive cell E, but at the end of each scanning line unmodulated light falls on a second cell F. The cells are connected to amplifying-valves M, N, and neutralizing condensers H, J are so adjusted that neutralization of the two cells is obtained when the cell E is unilluminated and the cell F illuminated. A longer synchronizing signal is obtained at the end of each complete scanning by illuminating the cell F from one or more idle scanning-lines. Receiver, Fig. 3. A valve 7 has its grid normally biassed to cut-off by a voltage derived by rectifying the signals by a diode 5, but becomes conductive when the zero synchronizing signals are received. The valve triggers a local alternating-current generator or discharges a pair of deflecting-plates in a cathoderay tube. To separate the longer synchronizing signals between pictures a second valve is provided with its grid circuit shunted by a condenser.
Patent GB-968977-A (GB)
Title: Improvements in and relating to insulating rings for electrical windings
IPC: H01F41/12
Filed: 1963-08-29
Abstract: 968,977. Transformers. LICENTIA PATENT-VERWALTUNGS.G.m.b.H. Aug. 29, 1963 [Aug. 31, 1962], No. 34273/63. Heading HIT. Angle rings for transformers and inductors are made by making cuts extending inwards from both side edges of a strip of insulating material and stopping short of an intermediary line on the strip, folding the strip along that line, coiling a number of turns of the strip to form a cylinder of predetermined diameter, turning up the flaps formed by the cuts and securing rigid rings of insulating material on both sides of the flange formed by the turned-up flaps. Fig. lb shows a paper strip from a drum 1 provided with slits at the edges by cutters 3, folded by guides 5 and rollers 6 and wound on a reel 8. The doubled strip is wound on to a former composed of exchangeable arcuate plates 14 (Fig. 2b) carried by adjustable supports 13, by which the plates can be moved to the required diameter. After the flaps have been turned up to form the flange of the angle ring rigid press board rings are secured to them.
Patent GB-1483137-A (GB)
Title: Solar cell devices
IPC: F24S23/70
Filed: 1975-08-18
Abstract: 1483137 Photovoltaic devices TYCO LABORATORIES Inc 18 Aug 1975 [1 Nov 1974] 34279/75 Heading H1K A photovoltaic device, for use as a solar cell, has a photovoltaic junction 6 close to the radiation-receiving surface 18 of a tubular semiconductor body which carries a continuous electrode 8 on the inner surface and a grid of longitudinal electrodes 12, and circumferential electrodes 10, 14, 16 on the surface 18. A number of such devices may be mechanically and electrically connected, Fig. 2, by using a flanged coupling member 22 of insulating material conductively coated to connect electrodes 14 and 16 of adjacent devices, and prevented from shortcircuitry the photovoltaic junction by an insulating ring 30. End connections are made via leads 46, 48 secured to conductive coatings on end members 36, 38. Interconnection between a P or N cell and an N or P cell is achieved, Fig. 3 (not shown) by using a cylindrical coupling member having facial grooves which engage the ends of adjacent devices, and which carry electrodes to interconnect the inner or outer surfaces of adjacent devices. A coolant may be passed through the tubular assembly. In another arrangement, Fig. 4 (not shown), a central mounting rod passes through apertures in the coupling members. Coolant then passes between adjacent devices through additional apertures in the coupling members, and enters and leaves the assembly via ducts in end members which also carry recesses to support the rod ends. Alternatively, the assembly may be axially compressed by nuts on the threaded ends of a support rod which emerges through axial holes in the end members. In this case, coolant enters and leaves the assembly via ducts in the rod ends. To allow for expansion and contraction of the assembly, the devices may be interconnected by electrodes in the form of conductive straps, bellows, or flexible sleeves. The central rod may also be used as a bus-bar, when parallel device connection is required, by using grooved coupling members carrying electrodes which interconnect the rod with the inner device electrode, and which interconnect the outer adjacent device electrodes. Heating of the device, by solar radiation of wavelength greater than about 1À2 Ám., may be inhibited by use of a concentric filter or by an anti-reflection coating. The photovoltaic junction may also be a surface barrier (e.g. Schottky barrier), a hetero-junction, or may comprise a conductive metal or metal oxide layer. Also, the device cross-section may be ellipitcal, square, or rectangular. An arrangement is described for using an array of serially-connected cooled assemblies in conjunction with solar reflectors.
Patent GB-305015-A (GB)
Title: Improvements in or relating to brush holders for dynamo-electric machines
IPC: H01R39/41
Filed: 1928-11-21
Abstract: 305,015. Soc. Anon. des Etablissments Ducellier. Jan. 28, 1928, [Convention date]. Brush-holders. - A carbon brush 4 and a pressure spring 9 are secured in a holder 2 by a cap 7 having bentover parts 8, one of the parts 8<a> co-operating with a groove 15 in the holder to guide the cap into position. Loss of a securing screw 14 on removal of the cap is prevented by threading it at the end only and providing a diametrically reduced central portion which passes through a tapped hole in the cap. Connection between the brush 4 and the cap 7 is effected bv a conductor 6. According to the Specification as open to inspection under Sect. 91 (3) (a) the carbon brush may be replaced by a greased wick for lubricating the commutator. This subject-matter does not appear in the Specification as accepted.
Patent GB-923096-A (GB)
Title: Process for the preparation of new chlorinated dicarboxylic acid dichlorides
IPC: C07D413/14
Filed: 1961-09-25
Abstract: Dichlorotetrahydrothiophene- 2:5-dicarboxylic acid dichlorides of formula <FORM:0923096/IV(a)/1> where X1 and X3 represent hydrogen and X2 and X4 are chlorine, or X1 and X3 are chlorine and X2 and X4 hydrogen, are produced by reacting tetrahydrothiophene-2:5-dicarboxylic acid with a chlorinating agent at 20-100 DEG C. under anhydrous conditions.  The chlorinating agent may be a mixture of phosphorous oxychloride, phosphorous trichloride and chlorine.  The dicarboxylic acid starting material is made by treating a a 1-dichloroadipic acid with sodium carbonate and sodium sulphide, and liberating with sulphuric acid.  The dicarboxylic acid dichloride product may be hydrolysed with aqueous hydrochloric acid to form thiophene-2:5-dicarboxylic acid.  The dichloride may be reacted with an amino benzene of formula <FORM:0923096/IV(a)/2> where A represents a substituted or unsubstituted ortho-phenylene radical, and Y represents an oxygen atom or a group -NR-, where R represents a hydrogen atom or an organic residue, to form a bisazole compound of formula <FORM:0923096/IV(a)/3> The dichloride may also be reacted with ammonia, a primary, or secondary amine to form the diamide, e.g. o-phenylene diamine in the presence of polyphosphoric acid produces 2:5-di-[benzimidazolyl- (21)]-thiophene.  The dichloride may also be esterified by reaction with an organic hydroxy compound.