baber/WOPTO huggingface dataset:
Patent GB-1249645-A (GB)
Title: Laminated webs
Inventor: ARSCOTT JOHN ROWLAND
IPC: B65D75/26
Filed: 1968-09-17
Abstract: 1,249,645. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Aug., 1969 [17 Sept., 1968], No. 44092/68. Heading B5N. [Also in Division B8] A laminated web comprises a series of laminated blanks, each of which when severed from the web may be folded to form a packet, especially a cigarette packet, in which the layer of the blank which is to form the outermost layer of the packet is of larger surface area than the remaining layer(s) and the remaining layer(s) are cut away so that the areas of the inner surface of the outermost layer which overlap when the blank is folded are exposed and the outermost layer is coated with a sealable material which becomes positioned between two pieces of the outermost layer where it is necessary to make a seal when forming a self-supporting packet. The web may comprise an outermost layer 5 of a film of cellulose derivative or biaxially oriented polypropylene laminated at its central portion (shaded area of Fig. 3) to a paper layer 2 which in turn is laminated to a composite layer 1 of paper and metal foil. The layer 5 is coated with a sealable material over the whole of its surface laminated to layer 2 and is provided with a tear tape 6. The layers 1 and 2 are cut away at the edges and at 3 and 4. The blanks are severed from the web by first making cuts from a hole 7 to each side of the bridge between the cut-outs 3 and 4 and then cutting along line X-X<SP>1</SP> (Fig. 1). When the blank is folded, the film behind 3 and 4 overlaps the film at the other end of the blank and the portions extending beyond layers 1 and 2 will overlap at the top and bottom of the web. An alternative form of web comprises a composite layer 8 of paper/ Al foil laminated to a wider outermost layer 9 of polypropylene, the exposed zone 10 of which is coated with sealable material. Areas of film 9 are also exposed by cut-away portions 11 through the centre of which along line B-B<SP>1</SP> the blanks are severed from the web. Tear tapes 12 and perforations 13 are provided along the web to enable easy opening of the packages formed therefrom.
Patent GB-1176170-A (GB)
Title: Antenna Arrays
IPC: H01Q21/22
Filed: 1966-10-04
Abstract: 1,176,170. Aerials. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 4 Oct., 1966 [15 Oct., 1965], No. 44352/66. Heading H4A. According to one aspect of the invention an aerial array comprises spaced radiating apertures and energy feeding junctions, adjustable phase shifting means in the junctions to give a phase distribution pattern along the array such that the phase shift between two adjacent apertures is linearly proportional to (sin α/sin α 1 ), where α is the beam angle relative to the normal to the array and 2α 1  is the angular range over which the beam is to be positioned, and the junctions generate a field strength distribution at each aperture of the form (sin X/X) where X is linearly related to a co-ordinate along the array; the apertures may be spaced by (#/2 sin α 1 ), where # is the wavelength. Multi-mode operation may be afforded. According to another aspect of the invention the phase shift between two adjacent apertures is linearly proportional to (sin α/sin α 2 ), where α 2  is half the angle subtended at a radiation source illuminating the array of apertures. In further aspects of the invention the field strength and phase distribution patterns at the apertures are represented by successive terms of a quoted mathematical expression. Low side-lobes, in beam scanning over a wide arc, are achieved. The phase shifters may be controlled digitally as in Specification 1,160,696. It is stated that there is no mutual coupling between the array elements. Specification 1,171,628 is referred to.
Patent GB-1224098-A (GB)
Title: Improvements in or relating to adjustable lamp holders, notably for flood-light projectors
IPC: F21V19/02
Filed: 1969-09-11
Abstract: 1,224,098. Lamps. COMPAGNIE DES LAMPES. 11 Sept., 1969 [18 Sept., 1968], No. 44853/69. Heading F4R. A lamp 15 is mounted between the outer ends of a pair of parallel suspension arms 7, 8 which are slidably and pivotally mounted on studs 9, 11 engaging respective slots 12, 13 in supports 1, 2, the inner ends of the arms being provided with opposed screw-threaded rods 18 of opposite pitches joined by an internally threaded hollow rod 17 and with asbestos washers 19 adapted to engage the flat surfaces of the supports 1, 2 so that the rod 17 can be rotated manually to clamp or release the lamp and can at the same time be used as a handle for adjusting the position of the lamp. The supports 1, 2, which are connected by transverse members 5, have holes 4 and lugs 3 by means of which they can be mounted in a projector housing, the holes 4 enabling the assembly to be pivoted in the housing to facilitate replacement of the lamp 15.
Patent GB-971283-A (GB)
Title: Improvements in or relating to pressure responsive indicating devices
Inventor: PREECE ROBERT
IPC: G01L19/08
Filed: 1962-11-29
Abstract: 971,283. Indicating pressure rise in liquid filters. AUTOMOTIVE PRODUCTS CO. Ltd. Aug. 30, 1963 [Nov. 29, 1962], No. 45186/62. Heading BID. [Also in Division G1] A pressure responsive indicating device, used to indicate when a filter pad 13 interposed in a base 11 has become blocked, comprises an indicator member, e.g. a hollow button 34, which is resiliently biased toward an indicating position by a spring 37, a latch device, e.g. a resilient U-shaped member 40 positioned inside the button to hold it in a non-indicating position, as shown in Fig. 1, and a plunger 24 arranged so that fluid pressure applied thereto will cause it to move and release the latch device when the pressure provides a predetermined thrust on the plunger, the button thus being released to move to its indicating position. The plunger 24 has an enlarged central part 26 moving in a bore 17, and in effect forms a double-sided piston. Passages 31, 32 connect the upstream and downstream sides of the filter 13 with the two sides of the plunger 24. As the filter becomes blocked, the pressure upstream increases, causing the plunger to move against a spring 27. The plunger carries a head 43 of double conical shape behind which the inwardly-turned ends 41 of the limbs of the member 40 normally engage to hold the button 34 in its non- indicating position. As the head 43 moves, it releases the limbs 41, thus permitting the spring 37 to move the button to its indicating position. In order to prevent the button from being released as a result of a high pressure drop across the filter caused by high viscosity of the liquid at low temperatures, a bimetallic element 46 is mounted around the button and engages a flange 38 on the button preventing its release until the temperature has risen sufficiently. The indicating device may alternatively be a pivoted arm or flap held by a latch in a position flat against the surface on which it is mounted, the arm or flap moving, when released, to a position projecting at right angles to the surface under the action of a spring.
Patent GB-1084558-A (GB)
Title: Improvements in power plants
IPC: F01K17/06
Filed: 1964-11-06
Abstract: 1,084,558. Gas and steam turbine plant. BABCOCK & WILCOX Ltd. Nov. 6, 1964 [Nov. 9, 1963; Feb. 28, 1964], No. 45292/64. Heading F1Q. [Also in Division F4] A power plant comprises a fuel fired steam generator supplying a steam turbine to generate the total plant power under normal load conditions, and a combustion chamber supplying gases to a gas turbine for supplementing the plant power at peak load times, at which times at least part of the gas turbine exhaust is fed to the steam generator firing means to provide at least part of the oxygen required therein. Steam from a steam and water drum 6 of a steam generator 1 having firing means 30 is passed through a superheater 7 to a high-pressure steam turbine 11. Part of the turbine 11 exhaust is led to a reheater 8 and thence to a low-pressure steam turbine 14, the exhaust of which is condensed at 21. Part of the condensate water passes through bled steam, feedwater heaters 41-46 to a water tank 47, heated by part of the turbine 11 exhaust steam. The rest of the condensate water passes to the tank 47 via either a pre-economizer 27 or a heat exchanger 29. From the tank 47, de-aerated, pre-heated feedwater is passed through an economiser 9 back to the drum 6. Under normal load conditions, the firing means 30 is supplied with air from a compressor 32 via valve 66 and bled steam combustion air heaters 242-247. Under peak load conditions, a valve 68 is opened to pass some of the air from the compressor 32 to a compressor 62, a combustion chamber 61 and a gas turbine 3. Part of the gas turbine exhaust passes, together with the pre-heated combustion air, to the firing means 30, the remainder passing through the heat exchanger 29 under the control of a valve 65 and thence, either to exhaust or to the combustion gas outlet from the steam generator between the preeconomizer 27 and the economizer 9. Valves 66 and 68 may be coupled so that as one is closed the other is opened, and the degree of opening of valve 68 may be controlled in accordance with the output of the compressor 32. In a modification, Figs. 3 and 4 (not shown), some of the combustion air heaters 242-247 comprise tubes wherein the steam is desuperheated, tubes forming a condenser, and tubes for condensate removal.
Patent GB-936220-A (GB)
Title: Photographic flashlight apparatus
IPC: G03B15/03
Filed: 1961-12-18
Abstract: 936,220. Photographic flashlight apparatus. A. FISCHER. Dec. 18, 1961 [Dec. 27, 1960], No. 45334/61. Class 9 (2). A photographic flashlight apparatus comprises a unit 1, which houses a capless bulb 11 and its associated electrical components, and a reflector unit 5 which slidably engages the housing unit. The end 10b of a lever 10, which normally projects through a slot 12, maintains the units in the position shown, but when caused to telescope together, portion 13 of the reflector unit 5 forces end 10b downwardly, lever 10 pivoting about a pin 9 and end 10a ejecting the bulb 11. The top wall of the reflector unit 5 is constituted by a flap 7 hinged at 8 and allows for removal and replacement of flashbulbs. While the units are telescoped together a groove 14 in the rear wall 14a permits lever 10 to regain the position shown, but on extending the apparatus to the operative position, portion 13 forces end 10b upwardly and end 10a moves against the action of a spring 15 to be later returned thereby into contact with the base of the bulb. A foot 2 is provided for attachment of the apparatus to a camera and flap 7 may be automatically closed by a hairpin spring or only free to open to such a position that it can fall to the closed position under its own weight. Some of the electrical components may be contained in the reflector unit 5.
Patent GB-1418840-A (GB)
Title: Control circuit for dc motor
IPC: H02P7/29
Filed: 1973-09-28
Abstract: 1418840 Commutating thyristors MEIDENSHA KK 28 Sept 1973 [22 Jan 1973] 45449/73 Heading H3T [Also in Division H2] In a control system for a D.C. series motor 11, 14 of the type chopping the D.C. from a battery 10 by use of a silicon controlled rectifier 16 made conductive by a pulse generator 17 and non-conductive by an oscillatory circuit formed from a reactor 18 and a capacitor 19, the current flowing when capacitor 19 discharges through the rectifier 16 is increased by discharge of additional energy stored in the reactor 18 during the non-conductive period of rectifier 16 by the current flowing through the motor freewheel diode 13 and a coil 20 magnetically linked with the reactor 18. Thus the capacitor 19 is charged to a higher reverse voltage compared with a known control system, Fig. 1 (not shown) so improving turn-off of the rectifier without having to change the values of the reactor and/or capacitor or increase the voltage of the source 10. Also the reverse voltage increases with increase of the motor load current to stabilize the commutation of the rectifier over the load current range. In the circuit of Fig. 3, the capacitor 19 is charged through a second silicon controlled rectifier 22 when the rectifier 16 is non-conductive and discharges through the latter (when it is made conductive) and members 18, 23 to a reverse voltage increased by the action of coil 20 on reactor 18, the rectifier 22 being turned off by the discharge of capacitor 19. Rectifier 16 is turned off when the rectifier 22 is fired by pulse generator 17 to allow capacitor 19 to reverse bias the rectifier 16. When the motor field coil 14 is reversed to reverse the direction of rotation, a diode 12 short circuits the EMF produced by the armature 11 to prevent it being subjected to an abrupt braking force.
Patent GB-1272196-A (GB)
Title: Bushing arrangements for rotary shafts
IPC: F01C21/02
Filed: 1970-09-24
Abstract: 1,272,196. Bearings. GENERAL SIGNAL CORP. 24 Sept., 1970 [26 Sept., 1969], No. 45611/70. Heading F2A. [Also in Division F1] A rotary shaft 15 is journalled in a bush 19 located in a bore 23 in a structural member. A clearance 28 is provided between the outer periphery of the bush and the wall of the bore, the clearance being at least coextensive with the load zone of the bush in the circumferential direction, extending longitudinally from one end of the bush at least half the length of the bush, and being tapered to a maximum radial width at one end of the bush. Preferably, the wall of the bore is cylindrical and the outer periphery of the bush is conical. The bush may be bronze-lined with a steel backing, or may be solid bronze. As described, four bushings are provided for the shafts of a high pressure gear pump, the clearance being provided at the end of the bush nearer the gear. Wear plates 17, 18 are provided, one (17) being fixed and the other being movable.
Patent GB-1115785-A (GB)
Title: Improvements in apparatus for moulding glass parisons
IPC: C03B9/38
Filed: 1965-10-29
Abstract: <PICT:1115785/C1/1> <PICT:1115785/C1/2> An apparatus for forming parisons from charges of molten glass includes an open-ended parison mould 20 or 22 having one or more cooling air passages 46 extending through the mould body, the or each passage 46 communicating at one end with an open end of said mould and at the other end with the surrounding atmosphere, and means associated with said open end of the mould for drawing air from the atmosphere through said passage or passages.  The apparatus illustrated includes twin blank moulds 20, 20.  The blank moulds are mounted on an arm 18 (Fig. 1) attached to a piston rod 16.  The upper end of rod 16 passes through and is slidable within a cylinder 72, the upper end of said rod being attached by a yoke 76 to a pair of fluid actuated motors which when activated raise or lower the blank moulds.  The lower end of rod 16 has a cam follower 108 which is adapted to run in a groove 92 in a cam 88 (see also Fig. 5, not shown).  This permits, in the upward direction, initial vertical movement only of the moulds and then a vertical motion but with rotation through 41 degrees.  A pair of split neck ring moulds 28, 32 having air passages 42 communicating with atmosphere at one end and passages 46 at the other, and having a plunger arrangement 70, are adapted to co-operate with the lower end of blank moulds 20, 22, seating thereon through mating surfaces 68. After a gob of molten glass has been deposited in the parison mould with the neck-rings in position a pair of baffles 34, 36 on an arm 40 are caused to come into co-operating relationship with the upper ends of the parison moulds.  The plunger 70 then enters the moulding cavities 24 and presses out the parison 62.  The baffles 34, 36 include air passages 52, 50 which communicate at their lower ends with passages 46 in the parison moulds 20, 22 and at their upper ends with a vacuum line.  After the parison has formed, the baffles are removed and the parison moulds moved upwardly away from the parison and then through an arc of 41 degrees through the fluid motor operated piston rod 16 and cam 88.  The parison is then inverted for introduction into a blow mould.
Patent GB-1082353-A (GB)
Title: Haloalkanoylbenzimidazoles
IPC: C07D235/12
Filed: 1964-11-11
Abstract: The invention comprises compounds of the formula <FORM:1082353/C2/1> (wherein each of R1 and R2 is H, CF3 or a C1- 5 alkyl or alkoxy radical, R3 is H or a C1- 5 alkyl radical and X is Cl or Br.  The compounds may be prepared and/or further converted to 2 - (41 - thiazolyl) - benzimidazoles in accordance with the reaction scheme <FORM:1082353/C2/2> <FORM:1082353/C2/3> <FORM:1082353/C2/4> wherein R4 is H or a C1- 5 alkyl radical, step A is an oxidation, step B involves reaction of compounds II with (CF3CO)2O in the presence of a catalytic amount of a sulphonic acid, step C involves halogenation of compounds III by contacting them with chlorine or bromine in a solvent solution, step D involves reaction with a C1- 5 alkanol, step E involves reaction with a thioamide of the formula <FORM:1082353/C2/5> and compounds II may be directly converted to give the brominated trifluoroacetic-acid-addition salt form of compounds V by reaction, in suspension in CF3COOH, with liquid bromine.
Patent GB-951738-A (GB)
Title: Earthing the shields of shielded electrical connectors
Inventor: COLLIER JOHN COVELL
IPC: H01R4/64
Filed: 1961-12-22
Abstract: 951,738. Couplings. AMP Inc. Dec. 17, 1962 [Dec. 22, 1961]. No.46015/61. Heading H2E. An earthing connection is made between a crimped ferrule 15, and an electrical shield 11, surrounding a conductive core 10, the two separated by an insulating sleeve 12. The ferrule 15 has holes punched in it with the metal from the holes left standing up internally of the ferrule so that it keys into the braided shield but does not penetrate the insulation. An earth wire 14 is inserted between the ferrule 15 and the insulation 12. In a modification, Fig. 6 (not shown), no earth wire is provided and one edge of the ferrule, 15, is prolonged to provide a tab with a hole for receiving a securing bolt. A machine is described for applying the ferrules and earth wires by automatic crimping and severing.
Patent GB-1205146-A (GB)
Title: Sterilizing compound
Inventor: KRUEGER ROBERT KENNETH
IPC: C12H1/14
Filed: 1968-09-27
Abstract: 1,205,146. Cyclopropane carboxylic carbonic anhydrides. JOS. SCHLITZ BREWING CO. 27 Sept., 1968 [27 Sept., 1967], No. 46107/68. Heading C2C. [Also in Division A5] The invention relates to cyclopropane carboxylic carbonic anhydrides of the general formula where R is a radical containing 1-24 carbon atoms, e.g. alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkynyl, aryl or mixed alkylaryl. The compound in which R is ethyl is claimed per se. The compounds may be prepared by dissolving a carboxylic acid and a tertiary amine in an organic solvent and then adding an alkyl chloroformate preferably ethyl chloroformate. In an example to a mixture of cyclopropane carboxylic acid and triethyl amine ethyl chloroformate was added and cyclopropane carboxylic ethyl carbonic anhydride obtained. Other examples are given.
Patent GB-1532804-A (GB)
Title: Hydrostatic extrusion process
IPC: B21C23/00
Filed: 1975-11-07
Abstract: 1532804 Hydrostatic extrusion KOBE STEEL Ltd 7 Nov 1975 [7 Nov 1974(2) 46174/75 Heading B3P Hydrostatic extrusion apparatus comprises a container 2 movable along an axis K-K of the apparatus, a platen 1 in front of the container, a stem 5 driven by a cylinder 9 for pressurizing a fluid medium 21, a die 3 slidable in the container, a die holding fixture secured to the platen and columns 8 interconnecting the platen and cylinder. A billet 7 is placed in a supply unit 23 on an axis J-J of an auxiliary station along with a die 3, pressure medium 21 and a seal block 20. The unit 23 is pivoted into alignment with the axis K-K by an arm and has its forward end in contact with the container 2, Fig. 4 (not shown). A mandrel 6 and the stem 5 are advanced, the mandrel breaking a foil covering the seal block bore and the stem 5 pushing the die 3, billet 7, the pressure medium 21 and the block 20 into the container. Meanwhile the unit 23 is opened out, Fig. 5, and the arm pivots to its original position for reloading the unit. The starting pressure is applied by advancing the mandrel 6 and stem 5 together and the normal extrusion pressure is applied by the stem 5 only. When extrusion is complete, the container 2 is withdrawn, Fig. 6 (not shown), over the stem 5 and the pressure medium 21 and block 20 fall into a receptacle (29). A shear blade (19) cuts off the extrusion end product which falls into the receptacle together with the die 3.
Patent GB-968960-A (GB)
Title: Production of oxygen-containing waxes by oxidation of low molecular weight ethylene polymers with oxygen or gases containing molecular oxygen
Inventor: ZEITLER GERHARD
IPC: C08F8/06
Filed: 1962-12-10
Abstract: Oxygen-containing waxes are produced by oxidising with oxygen or free-oxygen containing gases an ethylene polymer of molecular weight 2,000-20,000 in the presence of at least 50% of a saturated C2- 6 carboxylic acid and a catalyst dissolved in the reaction mixture comprising 0.1-1% of one or more manganese and/or cobalt salts and 0.1-1% of halide ions, at 110-140 DEG C. until the polymer has an acid number of 5-90. The oxygen may be used in the form of air. The catalyst may comprise a permanganate, a manganous and/or cobaltons salt, e.g. acetates, stearates, naphthenates, chlorides or bromides and halide ions which may be provided by adding 0.1-0.7% hydrochloric acid to the polymer at below 75 DEG C. The ethylene polymers may be copolymers with carbon monoxide and contain 10-30 carbonyl groups/1,000 C atoms or prepared by thermal degradation of polyethylene. The carboxylic acid may be acetic, propionic, valeric or caproic. The process may be carried out at up to 100 Atm. pressure. An emulsifier, e.g. sulphonates of or oxyalkylated fatty alcohols or aliphatic esters of phosphoric acid, may be used. The waxes may be used alone as emulsions for producing polishes and to finish textiles and paper.
Patent GB-1023975-A (GB)
Title: Electrically driven wagon-tilting apparatus
IPC: H02P5/68
Filed: 1962-12-11
Abstract: 1,023,975. Wagon tipplers. SIEMAG MASCHINEN UND STAHLBAU NETPHEN G.m.b.H. Dec. 11, 1962 [Dec.13, 1961; Jan. 25, 1962], No. 46647/62. Heading B8E. [Also in Division H2] An induction motor 5 driving a wagon tilter is started by closing switch 65 to energize relay 60 whereby magnetic valve coil 70 and relay 80 are energized. Valve 70 controls hydraulic cylinder 22 to withdraw bolt 21 whereby a wagon is locked within receptacle 1. Cam 23 operates limit switch 6 to close contact 68, whilst relay 80 releases brake 8 and energizes relay 90. The latter closes contact 92 to connect the motor to supply network 39, the receptacle 1 being driven through reduction gear 10, shaft 12, pinion 15 and ring 16. At the same time, controller 19 for the motor is adjusted through chain drive 20. As the receptacle 1 approaches the end of a complete revolution, cam 110 opens contact 111 to de-energize relay 60, the coils 70, 80, now being maintained through cam-operated contact 113. Relay 90 is de-energized to disconnect the motor from network 39. Closure of cam-operated contact 115 energizes relay 100 whereby the motor is connected through contacts 103 to the lowfrequency output of a frequency changer 34, the motor being braked regeneratively until it reaches the new nominal speed. Contact 115 opens when the tilter reaches its end-position, to disconnect the motor, apply the brake, and unlock the wagon. Further operation of the tilter is prevented if the frequency changer becomes overloaded. In another arrangement, the motor 5 is braked by connecting it in reverse to the low-frequency supply for a short period.