baber/WOPTO huggingface dataset:
Patent GB-1430180-A (GB)
Title: Method and apparatus for depositing film on a substrate and products produced thereby
IPC: B29D11/00
Filed: 1973-07-31
Abstract: 1430180 Ion beam tubes PRECISION THIN FILM CORP 31 July 1973 [14 Aug 1972] 36394/73 Heading H1D [Also in Division C7] Apparatus for depositing a film on a substrate comprises an emitter 40 of molecular particles of a material, a plurality of rings 48 encircling the path of emitted particles for accelerating and directing the particles to a collector region remote from emitter 40 and including the substrate, and for ionizing the particles, and means for maintaining a high vacuum around the emitter, rings, and collector region. The emitter 40 may be a slug 40 of coating material located in water-cooled block 34 and heated by an electron beam from a filament in cavity 42, the beam being magnetically deflected; a movable shutter 46 is positioned above 40. The accelerator/ionizer shown comprises 6 annular rings, 3 of them being guard rings attached by leads 86 to a source of potential, and 2 being ionized rings having radial inwardly facing needles attached thereto as electron emitters; these receive potential via leads 88; 70 is an accelerating ring. The rings are suspended by wires 60 with insulators 62; frame 50 is a mount for a plastics or metal substrate and has a collector screen 54 for stray particles; R.F. excitation may be used to prevent charge buildup on the substrate, or else bombardment from radioactive isotope 90 is used. A system (Fig. 9, not shown) is disclosed where a strip plastics substrate is fed reel-to-reel through a vacuum chamber having a plurality of units of the type shown; Figs. 15 and 16 (not shown) illustrate apparatus where the ionized particles are deflected by a magnetic field so that undesired ions may be selectively removed; there are disclosed alternative units 48 where instead of attached needles, sharpened annular discs or hollow tubes having sharpened fins are used. Plastics lenses may be given a scratch resistant coating, or plastics film provided with a coating prior to being laminated on one or both sides of a windscreen.
Patent GB-764899-A (GB)
Title: Improvements in the operation of dynamo-electric machines in mutual synchronism
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
Filed: 1954-12-17
Abstract: 764,899. Selsyn machines. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 17, 1954, No. 36627/54. Class 35. [Also in Group XXXVII] Relates to the operation in mutual synchronism of dynamo-electric machines having inter-connected polyphase secondary windings and primary windings which are excited with alternating and direct-current simultaneously. As shown by way of explanation the rotor of the transmitting machine carries a polyphase winding 3 and is driven by a motor 12, whilst the stator windings 1, 2, are respectively excited from alternating and direct-current sources. The receiver has corresponding windings 1<SP>1</SP>, 21, 3<SP>1</SP>, and is mechanically coupled with a load 13 which is to be driven in synchronism with apparatus coupled to the transmitter, the pulsating fields produced by the windings 1, 11, being displaced by 90 electrical degrees from the unidirectional fields due to the windings 2, 2<SP>1</SP>. This arrangement allows a stationary receiver to be automatically synchronized with a running transmitter and, at the same time, the accelerating torque is prevented from overcoming the synchronizing torque when the machines are at or near the synchronous speed corresponding to the supply frequency, so that positive synchronization results. According to the invention the primary windings of the machines are simultaneously excited from a single source of alternating-current, the direct-current excitation being obtained by rectification. In one arrangement, the primary windings are wound for three phases, two phases being connected to the alternating-current supply and the third phase being excited with direct-current with a return path through the other two phases, Fig. 4 (not shown). Since the third phases of the transmitter and receiver are connected in series, a resistor is added to provide a loop circuit for the direct-current excited windings. The receiver may be disconnected from the transmitter and operated independently as an induction motor in either direction of rotation. In another arrangement, the primary windings of the machines are each star-connected with the star-points connected to one pole of the directcurrent supply, Fig. 5 (not shown). If the primary windings are delta-connected, a centretapped choke has its end terminals connected to two primary terminals on each machine, and the centre tap is joined to a direct-current terminal, the remaining direct-current terminal being connected to the other primary terminals, Fig. 6 (not shown). The direct-current field strength of the controlling machine is sufficient to saturate the magnetic circuit, so improving the starting and accelerating torque. A shortcircuited winding on the receiver has its axis aligned with that of the direct-current field in order to improve the starting torque. Specification 500;609, [Group XXXVII], is referred to.
Patent GB-1515298-A (GB)
Title: Tamperproof shackle seals
IPC: B65D63/10
Filed: 1974-08-21
Abstract: 1515298 Seals ITW Ltd 20 Aug 1975 [21 Aug 1974] 36694/74 Addition to 1430093 Heading B6P In a seal as claimed in Claim 1 of parent Specification resilient fingers 26 may be stabilized either by webs joining each finger to its neighbour along their whole lengths or by respective webs 28 each joining its associated finger 26 along its length to the adjacent socket wall 18. The webs are stated to assist the fingers 26 to recover quickly from any distortion. Alternatively the resilient fingers may be of uniform thickness along their length. The strap 10 may be provided with a projecting stop which restricts its freedom of movement.
Patent GB-1126430-A (GB)
Title: Automatic fly casting reel
IPC: A01K89/016
Filed: 1967-08-11
Abstract: 1,126,430. Fishing reels. CARPANO & PONS. 11 Aug., 1967 [11 Aug., 1966], No. 36905/67. Heading A1A. A fishing reel has a rotatable spool 3 arranged, during winding out of the line, to wind up a spring 10 whereby the spool can be automatically rotated in the line winding-in direction and is characterized in that the spool is detachably mounted on a shaft 2 and in that when the spool is removed the spring 10 is unwound. A clutch 23 connects a disc 21 associated with the spool to a gear 20 from which the spring 10 is wound via gear 18. The spool is pressed against the clutch by spring 37, the pressure being variable by rotation of cap 36 which has a projection 37 guided in a helical groove 2<SP>111</SP>. To prevent undesired rotation of the spool by the spring the disc 21 has a drum part 21<SP>11</SP> which is engaged by a coil spring 24 which has one end secured in the casing 4 and is arranged to tighten on to the drum. The other end of this spring is engageable by a manually operated lever to release the drum and thus the spool. The spool can be removed from the shaft when cap 36 has been turned (by rotation of the further cap 39) sufficiently to move projection 35<SP>1</SP> out of the groove 2<SP>111</SP>. An adjustable line guide ring 34 is also incorporated. The spring 10 can be tensioned manually via a pawl and ratchet mechanism by rotation of housing part 5 with respect to the casing 4.
Patent GB-1316900-A (GB)
Title: Multiple flash unit
IPC: G03B15/04
Filed: 1971-08-05
Abstract: 1316900 Photographic flash units PATENTTREUHAND GES FUR ELEKTRISCHE GLœHLAMPEN mbH 5 Aug 1971 [5 Aug 1970 17 Feb 1971] 36946/71 Heading G2A In a flashcube containing percussive flash bulbs and having integral strikers in the form of torsion springs 8, each spring is coiled round a pin 7 at the appropriate corner of the cube baseplate 3, one end of each spring being bent upwards to form a lug 11 against which the other end, forming a striker 9, engages in its stressed condition. A safety pin (14) Fig. 4, (not shown) carries a flange which bears against the strikers 9 to retain them in their stressed positions when the cube is transported. When the cube is attached to a camera, the pin (14) is raised by a socket pin. The pin (14) then projects through the top of the cube to indicate that the flashcube is ready for firing.
Patent GB-1371875-A (GB)
Title: Installation for rotatably supporting a workpiece
IPC: C21D1/62
Filed: 1972-08-09
Abstract: 1371875 Supporting workpieces CREUSOTLOIRE 9 Aug 1972 [3 Sept 1971] 37084/72 Heading C7N A device for rotating a workpiece 3 comprises two supports 1, 2 each having an endless chain 11, 21 passing over a pair of upper pulleys 131, (121) and 221, (231) respectively, each pulley being at the same height. The chain 11 of support 1 is driven by a motor 154, Fig. 2 (not shown), acting on a lower pulley (151), whilst the chain 21 of support 2 passes round a lower idle pulley 252, Fig. 3 (not shown). The supports 1, 2 are displaceable relative to each other, as are the upper pulleys. The device may be used for quenching or air-cooling a large workpiece.
Patent GB-1067397-A (GB)
Title: Multi-layer silver halide material for the production of photographic colour images
Inventor: PIETRZOK HUBERTUS
IPC: G03C7/32
Filed: 1965-09-01
Abstract: 1,067,397. Photographic mask-forming colour couplers. FILM FABRIK WOLFEN, VEB. Sept. 1, 1965,. No.37382/65. Heading G2C. A multi-layer photographic silver halide material contains a water-soluble, diffusionresistant colour coupler of the pyrazolone type for magenta and/or of the naphthol type for cyan, wherein an azo group present in the coupling position has the general formula: - in which R1 and R2 are hydrogen, halogen, sulpno, carboxyl, alkyl or alkoxy, R3 is hydrogen, halogen, hydroxyl, alkyl or acylamino and R4 is hydrogen or carboxyl.
Patent GB-366219-A (GB)
Title: Improvements in connection with the electrical heating of buildings
IPC: F24D13/02
Filed: 1930-12-16
Abstract: 366,219. Wire resistances. GRIERSON, R. and DULRAE PATENTS, Ltd., 4, Bloomsbury Place, London. Dec. 16, 1930, No. 37858. [Class 37.] In a system wherein the heating resistances E are embedded in the floors, walls or ceilings, the resistances are enclosed in tubes D connected to header boxes H the tubes and boxes containing sufficient oil or other suitable liquid or substance which is liquid at the operating temperature to cover completely the open ends of the tubes entering the boxes. The wires may be insulated by glass or porcelain beads or tubes if the tubes D are of metal. The tubes D may, however, be made of glass or earthenware. The tubes are embedded in a stratum of concrete B.
Patent GB-805850-A (GB)
Title: Terminating glands for armoured electric cables
IPC: H02G15/02
Filed: 1956-12-11
Abstract: 805,850. Mechanical couplings for cable and wire armouring. HENLEY'S TELEGRAPH WORKS CO. Ltd., W. T., and MOOR, E. Dec. 11, 1956, No. 37870/56. Class 38 (1). A cable gland comprises a body 4 having spaced outer and inner integral sleeves 8, 5, respectively, the cable armouring 2 being clamped on to the conical outer face 6 of sleeve 5 by an internally coned ring 12 forced on to the armouring by a screw 11 screwing into the outer sleeve. Recesses 14 in the body provide for engagement of the gland by a tommy-bar so that an extension 15 may be screwed into a housing, and a sleeve 16, e.g. of p.v.c. excludes dirt and moisture.
Patent GB-632379-A (GB)
Title: Improvements in or relating to keyboards, especially for electrically-controlled accounting or card-punching machines
Filed: 1946-12-30
Abstract: 632,379. Punching cards. COMPAGNIE DES MACHINES BULL. Dec. 30, 1946, No. 38063. Convention date, Oct. 2, 1945. [Class 31 (ii)] Also in Groups XVI, XIX and XXXVII] A keyboard, particularly for an electricallycontrolled card-punching machine, includes a key 50 adapted to actuate a set of contact blades 54, 55, 66, all of which except the blade 66 are flexibly articulated or hinged at their attached ends so as to offer only negligible resistance to depression of the key, the blade 66 being resilient so as to resist the key depression and ensure engagement of all the contact points 61 ... 64. As shown, the blades 54, 55 are secured at one end to a support 60 by flexible strips 56, 57. At their other ends, the strips engage respectively a notch 52 and a projection 80 on an insulating plate 51 attached to the key stem. When the key is depressed against the action of a spring-raised bail 104, the blades 54, 55 move downwardly until the resistance of the blade 66 causes the contacts to engage. The blades 54, 55 are positively restored to their original positions by the parts 52, 80. A plate 73 on the support 60 has a slot 74 into which the blade 54 enters, the lower edge of the plate forming a stop for the blade 55 which is wider than the blade 54. The plate 51 may be omitted, and pins provided on the key stem to actuate the blades 54, 55. In a keyboard comprising a number of keys as described above, means are provided for preventing depression of more than one key at a time, comprising the usual ball-race 100 co-operating with a series of spring- controlled levers 93 individual to the keys. Each lever engages the balls at a point intermediate its pivot 95 and the point where it is engaged by a pin 92 on the corresponding key stem.
Patent GB-1444771-A (GB)
Title: Electromagnetic radiation source
IPC: H01J65/04
Filed: 1973-08-13
Abstract: 1444771 Lamps CHARYBDIS Inc 13 Aug 1973 38204/73 Heading F4R [Also in Division H1] An electromagnetic radiation source comprises an electrodeless container 10 of predetermined size confining a plasma-forming gas under a pressure of at least one atmosphere, an r.f. generator 34 mounted outside said container for generating radio-frequency electromagnetic en-  ergy so as to develop magnetically an induction field extending through the container into said gas so as, in use, to ionize said gas to a plasma arc suspended within said container without contacting the wall of the container, and means for controlling said r.f. generator to control the frequency and magnitude of the induction field so that, in use, the diameter of the plasma arc is less than the diameter of said container. The source may be used for lighting and/or heating. Radiation from the source is focused by a lens 31 on to a sensor 30 which passes signals to power and frequency adjusting circuits 32 and 33  which control the generator 34 which is connected to a coil 18 surrounding the container 10. the circuits 32 and 33 may each comprise a single condenser (Figs. 4 and 5, not shown). The container 10 is a spherical quartz glass envelope positioned in a chamber defined by a reflector 22 and lens 24 and supplied with liquid coolant from a sealed heat-exchange system. The coil 18 is cooled by a throughflow of liquid from the same or from an independant system and is embedded in a glass cloth tape structure wound under tension around the reflecting chamber which may be replaced by a conventional projection system. Radiation passing through the lens 24 impinges on a hyperbolic reflecting surface 25 and is re-directed to a beam forming reflector 26. The gas filling may be a mixture of plasmaforming xenon with a lighter background gas such as argon, neon, helium or hydrogen. Alternative fillings are mercury or caesium or other alkali metal.
Patent GB-1263687-A (GB)
Title: Machine tool control system
Inventor: RHOADES JOHN MERRILL
IPC: G05B19/416
Filed: 1970-08-07
Abstract: 1,263,687. Programmed control of machine tools. GENERAL ELECTRIC CO. Aug. 7, 1970 [Aug.22, 1969(2)], No.38261/70. Addition to 1, 217, 961. Heading G3N. The Specification is directed to a modification of the machine tool control system of Parent Specification whereby a further pulse rate modifier is used to adaptively control the spindle speed in dependence on sensed operating condition either in conjunction with the feedrate, or independently. The spindle speed can also be independently controlled to maintain a constant surface speed by compensating for changes in radius of the work. In a constant chip thickness mode the feedrate is controlled as a function of spindle speed so that as cutter torque increases with dulling of the tool or a tougher material is machined, the spindle speed and feedrate are changed simultaneously to maintain constant chip thickness.
Patent GB-1249519-A (GB)
Title: Internal combustion piston engines with fuel injection
IPC: F02B23/06
Filed: 1969-07-30
Abstract: 1,249,519. I.C. engine combustion chambers. DAIMLER-BENZ A.G. July 30, 1969 [July 31, 1968], No.38319/69. Heading F1B. In an I.C. engine having at least one fuel injection nozzle 7 disposed in the cylinder head 6 close to the rim of a piston combustion space 2 which is substantially symmetrical about the piston axis, the nozzle has at least two injection jets diverted towards different points spaced around the side wall 3 of the space 2 and having a penetrative power ensuring impact of both jets on the side wall, of which one jet 9a is diverted substantially in the direction of rotational inflow of the air which at least one other jet 8a is directed substantially against the direction of rotational inflow, the space 2 being shallow in relation to the piston diameter and the points of impact of the jets being disposed close to the outer edge of a frustro-conical upper part of the side wall. The counter-flow jet 8a is disrupted by the air-flow whereby it is rapidly ignited, while the jet 9a is ignited appreciably later. This ensures a gentle combustion with a slow pressure rise and easy starting. As shown, the piston may have a recess 13 to allow the nozzle 7 to be located radially beyond the space 2 to increase the length of the jets. Two diametrically opposite nozzles may be provided. The frusto-conical upper part of the wall 3 prevents fuel which reaches the wall from being directed downwardly towards the lower zone 4. Any fuel reaching the step 5 is detached from the wall there and entrained by the rotating airflow. A spark plug or incandescent plug for providing entraneous ignition or for assisting coldstarting of a Diesel engine may be provided in the region of one of the jets.
Patent GB-906025-A (GB)
Title: Electric apparatus for conversion from digital to analogue and vice-versa
IPC: H03M1/00
Filed: 1958-11-28
Abstract: 906,025. Digital-analogue interconverters. UNITED AIRCRAFT CORPORATION. Nov. 28, 1958 [Nov. 29, 1957], No. 38382/58. Class 40 (1). A digital-to-analogue converter adapted to convert a three digit binary-coded decimal number into an alternating current analogue proportional to the number. The decimal digits are each represented by signals on four leads A0-A3, B0-B3 and C0-C3, Fig. 1. In each group of four leads a signal on any of these leads causes an associated transistor to conduct and allows current to flow from a source through resistors weighted 1, 2, 4, 8 to an output line 40. The group which corresponds to the decimal digit of highest significance is connected across an autotransformer 94 producing a standard A.C. voltage of E volts. The group corresponding to the next decimal denomination is connected to a tapping producing one-tenth of E volts and the third group, to a tapping producing one-hundredth of E volts. The autotransformer may be replaced by a potentiometer, the tappings of which produce voltages in the ratio 1, 10 and 100. Analogue-to-digital converters.-The digitalto-analogue converter described above may be controlled by a binary coded decimal counter and the resulting analogue signal compared with an input signal. The difference signal causes clock pulses to increase or decrease the value in the counter until a balance is achieved.
Patent GB-861540-A (GB)
Title: Method of separating air into oxygen and nitrogen
IPC: F25J3/04
Filed: 1959-11-13
Abstract: 861,540. Cold separation of air. SULZER FRERES S.A. Nov. 13, 1959 [Nov. 15, 1958], No. 38620/59. Class 8(2). In a compressed air separation process wherein cooling is effected in serially arranged heat exchangers 5, 8, 12 traversed by nitrogen leaving the head of a column 22, the necessary cold required to condense a portion of effluent nitrogen withdrawn from the outlet duct 17 is met by expanding at a value 24 a portion of liquid oxygen withdrawn from the base of the column through ducts 33, 23 and passing it through an exchanger 25 also traversed by said nitrogen effluent which is thereby liquefied, the so vaporized oxygen then being further warmed in an exchanger 26 in countercurrent to a portion of itself after compression at 28 and preliminary cooling in a coil 30 traversed by an external refrigerant and after which the so cooled saturated oxygen vapour is returned through duct 23 to the column 22. Product liquid oxygen is discharged through a duct 35, compressed oxygen gas through a duct 29 and uncompressed oxygen gas through a duct 27. The cooling nitrogen is work-expanded in turbines 10, 6 between exchangers 12, 8 and 5. Argon-rich gas is withdrawn from the column 22 through a duct 34 and serves to assist cooling of the incoming air.
Patent GB-1197823-A (GB)
Title: Methods of Producing Hydrothermally Hardened Structural Materials or Parts.
Inventor: IBERG ROLF
IPC: C04B28/18
Filed: 1968-08-13
Abstract: 1,197,823. Cementitious compositions. BATTELLE INSTITUT E.V. 13 Aug., 1968 [25 Aug., 1967], No. 38637/68. Heading C1H. Natural or synthetic marls analyzing CaCO 3  9À8-30%, clay 40-70%, and silica 20-50%. and titania 0À2-3% are roasted at 700-900‹ C. and then hydrothermally hardened. The marls can be crushed before or after roasting, and then mixed with lime or cement. The titania mav be present in the marl or added as such. Hardening is preferably at above 165‹ C. e.g. 180-210‹ C. for at least 65 atmosphere-hours.
Patent GB-1094417-A (GB)
Title: Method of producing 1-(4 methoxy-phenyl)- butanone- (3) and 1-(4 hydroxy-phenyl)- butanone- (3)
IPC: C07C45/67
Filed: 1965-09-10
Abstract: 1 - (4 - Methoxyphenyl) - butanone - (3) is produced by adding K2CO3 to a solution of p-methoxy benzyl chloride and ethyl acetoacetate in acetone, heating the mixture with refluxing of the acetone, removing the K2CO3 from the cooled mixture, removing the acetone, adding the cooled residue to aqueous NaOH, boiling the resultant mixture under reflux, cooling, separating the resultant oily upper layer, extracting the aqueous lower layer and mixing the extract with the oil, washing the extraction medium to neutrality and removing it after separation and drying, the residue being fractionated under high vacuum to yield the product. The preferred extraction medium is benzene.  1 - (4 - Hydroxyphenyl) - butanone-(3) may be prepared from the above, via an ether cleavage reaction with the aid of concentrated hydrogen bromide solution in a mutual solvent for the 1 - (4 - methoxyphenyl) - butanone-(3) and the HBr.  The preferred mutual solvent is glacial acetic acid.