baber/WOPTO huggingface dataset:
Patent GB-1446843-A (GB)
Title: Sealing apparatus
IPC: B29C65/10
Filed: 1975-02-07
Abstract: 1446843 Seaming non-metallic sheet material ALTSTADTER VERPACKUNGS - VERTRIEBS GmbH 7 Feb 1975 [8 Feb 1974] 5362/75 Heading B5K Apparatus for sealing together marginal edge portions 14, 15 of sheet material 1 having a sealable plastics coating at least on the faces of the portions 14, 15 directed towards each other, comprises opposed jaws 2, 5 between which, in use, the portions 14, 15 pass and which are resiliently urged together, a guide rail 3, 6 on each jaw 2, 5 and each having a slot 10, 11 therein, the slots being positioned to receive and spread apart the free edges of the portions 14, 15 to expose the sealable coating, and a nozzle 17 to blow hot air on to the coatings of the spread apart free edges. The slots include an angle of 50-90 degrees, preferably 60-80 degrees, more preferably 75 degrees, As shown, apparatus for producing a tube from polyethylene-coated carboard 1 comprises a fixed sealing jaw 5 with a movable sealing jaw 2 resiliently urged thereto by a spring (7), Fig. 2 (not shown). The jaws 2, 5 having facing side walls 8, 9 curved at their upper ends 24, 25. Wedge-shaped projections 18, 19 are provided on the jaws 2, 3 to fold the portions 14, 15 to the positions 14<SP>1</SP>, 15<SP>1</SP> after the coating has been softened by hot air from the slit nozzle 17. The jaws 2, 5 are cooled by the circulation of cooling water therethrough in the viscinity of the seam. The nozzle 17 is formed between two members 27, 28 supplied with hot air through an aperture 29 in a block 30 having distribution chambers 31 closed by a perforated plate 32. Preferably, the apparatus is used for intermittent operation, e.g. by intermittently operated conveyer rollers, but may be used for continuous operation.
Patent GB-994232-A (GB)
Title: Improvements relating to apparatus for washing bottles and like containers
IPC: B08B9/42
Filed: 1963-02-09
Abstract: 994,232. Washing bottles &c. DAWSON BROS. Ltd., G. DAWSON, and D. DAWSON. May 6, 1964 [Feb. 9, 1963], No. 5375/63. Heading B8T. In bottle washing apparatus of the kind in which bottles &c. are conveyed through a succession of tanks or compartments and therein subjected to soaking in and/or jets of detergent liquid, and also in some compartments to pre-rinsing and a final rinsing, the rinse tanks and the piping, header boxes &c. through which rinse water passes are flushed out with hot detergent or other liquid by means of the pumping equipment normally used for serving one or more of the detergent tanks. A detergent tank 1 has header boxes 2, 3 with jets supplied by a pump connected by a pipe 4 to an isolating valve 5. A final rinse tank 6 has header boxes 7, 8 with jets supplied via valves 11, 12, and header boxes 14, 15 with jets supplied via a valve 20 and a heat exchanger 18. The valves 11, 12 and 20 are coupled to a water supply pipe 13. To provide a flushing of the rinse tank and piping &c., a hose part 21 of the water supply pipe, Fig. 2, is disconnected from the valves 11, 12 and 20 after closing an isolating valve 23 and replaced by a detergent hose part 22. Alternatively, a single hose may be used with one end connected to the valve 11 and its other end alternatively to the water pipe 13 or detergent pipe 4.
Patent GB-660613-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01R15/00
Filed: 1949-02-28
Abstract: 660,613. Voltmeters. GENERAL ELECTRIC CO., Ltd., BRYDEN, J. E., and EASTER, B. Feb. 28, 1950 [Feb. 28, 1949], No. 5406/49. Class 37. In an instrument in which an ammeter is shunted with a non-linear impedance, such as a, dry-plate metal rectifier, in order to obtain a non-linear response, the effect of temperature variation is compensated for by connecting the non-linear impedance to a potential source through an impedance network, the potential difference across which varies with temperature. In the valve voltmeter shown, for indicating power level in decibels, a pentode 8 has its anode 6 connected to the positive supply terminal 2 through a resistance R1, the cathode being connected to the negative terminal 3 through a bias resistance R2. Connected between the terminals 2, 3 are a rheostat 4 and two parallel-connected potentiometers formed by resistances R3, R4, R5, R6, of which R3, R4, R6 have a very small temperature coefficient, whilst R5 is of material such as copper having an appreciable temperature coefficient. A milliammeter 5 is connected between the anode 6 of the valve 8 and the junction of the resistances R3, R4, and a selenium dry-plate rectifier 7 is connected between the anode 6 and the junction of the resistances R5, R6. The voltage to be measured is applied between the control grid of the valve 8 and earth. With zero input to the voltmeter the rheostat 4 is adjusted so that the milliammeter 5 reads zero. The effect of the variation in potential difference between the two junctions R3, R4 and R5, R6 with temperature variation is to put a potential source in series with the rectifier 7, the series combination being in shunt with the milliammeter 5. Temperature errors over the working range are thereby compensated for the ammeter 5 may be calibrated in decibels. Specification 660,614 is referred to.
Patent GB-1173771-A (GB)
Title: Wall Assembly Clip
Inventor: LANE GORDON WHITLOCK
IPC: E04B1/61
Filed: 1966-02-08
Abstract: 1,173,771. Clips; panel wall structure. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 Jan., 1967 [8 Feb., 1966], No. 5476/66. Headings E1W and E2B. Adjacent panels 1, 2 of a wall structure are secured laterally with respect to each other by a clip 3 of generally I-shaped cross-section, each of the portions of the clip, which straddle marginal portions of the panel, being adapted for engagement with a cover strip 4 or 5, for concealing the clip and the gap between the panels. As shown, the clip is formed with lips 13, 14 over which the resilient cover strips may be snapped. The terminal portion of lip 14 is parallel to lip 13. The panel-straddling portions of the clip may be offset from the web 6 of the clip, Fig. 4 (not shown). The clip may be secured to the edge of one or both panels by nails, spikes or, as shown, screws 11. The clip and the cover strips may be of metal or plastics.
Patent GB-580056-A (GB)
Title: An improved revolution or like counter
IPC: G06M1/04
Filed: 1944-03-24
Abstract: 580,056. Ratchet gearing. SPREADBOROUGH, E. J., and CLAUDET, Ltd, F. March 24, 1944, No. 5519. [Class 80 (iii)] [Also in Group XIX] A revolution or like counter has a driving shaft e capable of being attached with its either end to the machine, the revolutions of which are to be counted, and arranged to revolve the counting mechanism through an eccentric disc pawl and ratchet device so that the mechanism is rotated in one and the same direction irrespective of the direction of rotation of the driving shaft. The counting mechanism b of known type is enclosed in a casing a and is actuated by a ratchet wheel c which is rotated by a spring-loaded pawl d mounted on an eccentric f carried by the driving shaft e. A spring-controlled check pawl is provided at h. Reciprocations may be counted by mounting on the shaft e an arm connected to the reciprocating member. By increasing the number of teeth in the ratchet wheel, one indicated revolution may be made to correspond to a number of revolutions of the driving shaft.
Patent GB-999588-A (GB)
Title: Polymers and method for forming same
IPC: C08G18/38
Filed: 1962-02-14
Abstract: A process for producing a flame-retarded polyurethane foam which is non-dripping and forms a non-burning charcoat on its surface when in contact with a flame, comprises reacting a polyisocyanate with an alkoxylated disaccharide having an average of from one to two alkoxides per hydroxyl in the presence of a phosphorus-containing compound containing at least 7% phosphorus by weight, foaming the reaction product which is formed and curing the product, the amount of alkoxylated disaccharide being sufficient to produce a total disaccharide content in the product of at least 9% by weight of the foamed product, the amount of phosphorus-containing compound being sufficient to produce a total phosphorus content in the product of 0.7% to about 4% based on the weight of the product.  The alkoxylated compounds are produced from sucrose, lactose, maltose, trehalose, cellobiose, gentiobiose and melibiose.  Suitable phosphorus compounds are monoesters of phosphoric acid, mono- or diesters of pyrophosphoric acid, diphosphoric acids or diphosphonic acids and the reaction products of these compounds and of diphosphinic and phosphonic acids with an alkylene oxide such as ethylene, propylene and butylene oxides and dicyclopentadiene and 1,4-butadiene dioxides. As non-reactive phosphorus compounds that may be added to the reaction mixture there are given as examples tributyl phosphate, tricresyl phosphate, tris-(2-chloro-ethyl) phosphate, triphenyl phosphate, butyl dibutyl phosphinate, diethyl 2-ethylhexyl-phosphonate, methyl dimethylphosphonite, butyl diphenyl phosphate, dimethyl methylphosphonate, tris-(2-chlorethyl) phosphite and tris-(2,3-dichloropropyl) phosphate. Specification 954,792 is referred to.
Patent GB-374009-A (GB)
Title: Improvements relating to the ignition of gas burners by electric means
IPC: F24C3/10
Filed: 1931-02-23
Abstract: 374,009. Lighting burners by electric devices. ELECTROGAZ, SOC. ANON., 17, Beau-Site, Le Locle, Neuchatel, Switzerland. Feb. 23, 1931, No. 5674. Convention date, June 18, 1930. [Class 75 (iii).] Relates to electric ignition means for gas burners comprising a step-up transformer, a sparking device in the high-tension circuit near the burner and a gas valve which, on being opened, operates a switch to close the lowtension circuit. Each switch, of which there is one for each valve and burner, comprises a square-sectioned block of insulating material 19, mounted on a pivot 18 within an insulating casing, which is carried by the gas distribution pipe 3 and may consist of sections 7 placed end to end. Near one corner of the block 19 is secured a contact 20, which, when the block is turned, engages the spring contact blades 21, 21<1>, 21<11>, which also normally hold the switch in open position. An arm 17 on the switch projects into the path of a finger 15 adjustably secured by clutch teeth 14 on the gas valve spindle. Thus on opening the valve the switch is closed, but immediately returns to open position. The electric circuit comprises a make-and-break coil (with condenser) embodied in a plug by which connection is made with the mains, and, for each switch, a transformer, the secondary of which is connected by a short lead to the burner electrode. The three blades 21 &c. serve, when a switch is closed, to make the connections necessary for exciting the coil and the condenser and for closing the circuit including the make-and-break device and the primary of the transformer concerned. Cavities 9 of the casing 7 may carry the hot-plate burner transformers, that for the oven burner being conveniently placed on the oven side close to the burner.
Patent GB-1379097-A (GB)
Title: Rotatable cutter heads for use in cutter dredgers
IPC: E02F9/28
Filed: 1972-02-07
Abstract: 1379097 Dredger cutter heads VAN HATTUM EM BLANKEVOORT BV 7 Feb 1972 [11 Feb 1971] 5677/72 Heading E1F A rotatable cutter head for use in a cutter dredger has secured to helical arms 2a, which converge together at one end of the head to form a hub 3 and, at the other end, are interconnected by a support ring 4, cutter teeth 5 that so extend laterally of the arms that the axis of each tooth crown lies in a plane that is defined by a perpendicular to a surface of revolution centred on the axis of the head and enveloping the cutting tips or the middle points of the cutting tips at the point where the tip or the middle point of the cutting edge contacts the surface and the tangent at said point to the orbit of said point when the head is rotated.
Patent GB-212562-A (GB)
Title: Improvements in spring contact devices for electrical switch apparatus
IPC: B21D28/34
Filed: 1924-03-05
Abstract: 212,562. Akt.-Ges. Brown, Boveri, et Cie. March 5, 1923, [Convention date]. Contacts for switches comprise co-operating machined contact surfaces c arranged paralell to themselves and oblique to the direction of movement, so that a rubbing action is produced when contact is made. The figures show three constructions in each of which the contacts c are secured to a fixed member a and a movable member b in a pivotal or resilient manner and are acted upon by springs f. The construction shown in Fig. 3 is for an oil switch and there may either be two contacts c for each block a or b or several contacts c in which latter case the blocks a and b are in the form of polygonal prisms.
Patent GB-1135014-A (GB)
Title: Improvements relating to swimming pools
IPC: E04H4/14
Filed: 1966-02-09
Abstract: 1,135,014. Swimming pool. VEREINIGTE METALLWERKE RANSHOFEN-BERNDORF A.G. 9 Feb., 1966 [9 Feb., 1965], No. 5706/66. Heading A4N. A swimming pool, formed as an open topped container and having a channel member of inverted U-shaped cross-section (2) which can be placed over the container wall (1) so that the limbs of the U (3) and (6) are directed downwards, one of the limbs (6) being adapted for connection to a stiffening bracket (8) for the container wall. the exterior of the web of the U carries formulations having anti-slip properties (12).
Patent GB-576522-A (GB)
Title: Improvements in and relating to brassieres
IPC: A41C3/02
Filed: 1943-02-01
Abstract: 576,522. Brassieres. TRUBENISED, Ltd., and BIHALY, L. Feb. 1, 1943, No. 5711/45. Divided out of 576,499, [Group VIII]. [Class 141] A lady's brassiere comprises a pair of separate breast pockets i moulded from thermoplastic material carried by a belt j and connected at the front by lacing k so as to be adjustable laterally and provided with shoulder straps l and buckles m for adjustment vertically. Specification 576,499 is referred to in the Complete Specification and Specification 419,208 in the Provisional Specification.
Patent GB-512604-A (GB)
Title: An improved extensible prop for use between opposed surfaces
IPC: E21D15/24
Filed: 1939-02-21
Abstract: 512,604. Props. WIGLEY, A.F. Feb. 21, 1939, No. 5730. [Classes 20 (i) and 20 (ii)] A prop of the kind comprising an inner perforated tubular member 2 adapted to receive a supporting pin and to slide in an outer tubular member 1, the upper end of which is screwed to coact with a nut 5 whereby a fine adjustment is given to the prop, has a sleeve 3 carried by the nut, the sleeve being provided with apertures at a smaller pitch than those in the inner member. A washer 4 is interposed between the upper surface of the nut and the lower end of the sleeve. A guide rod 6 is positioned in the outer prop member and is engaged by the flanged end of the inner member, to prevent complete withdrawal of the inner member. The ends of the prop members may be provided with flat or shaped supporting plates.
Patent GB-706114-A (GB)
Title: Thyratron control circuits
Inventor: O'DELL DOUGLAS THOMAS
IPC: H01J17/26
Filed: 1951-03-09
Abstract: 706,114. Automatic control systems for thyratrons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 10, 1952 [March 9, 1951 ; Oct. 15, 1951], Nos. 5734/51 and 23949/51. Class 38 (4) In order to control the rate of replenishment of gas in a hydrogen filled thyratron of the type containing an electrically heated capsule of titanium hydride, the heater is energized so as to maintain constant the rate of rise of the discharge current obtained when the thyratron is connected as an oscillator. It is shown that once a discharge has been initiated, the rate at which the current rises varies with the pressure of the hydrogen filling. This rate of change of current is measured as the voltage across an inductance L2, Fig. 3, in the cathode circuit of the thyratron V1. The voltage pulses are applied to a diode rectifier D2 and to a cathode follower V2, the output of which is compared with a reference voltage tapped off a potential divider P.D. connected across the H.T. supply to the thyratron. Any resultant out of balance voltages are fed to the amplifier V3 which controls a magnetic amplifier M.A. controlling the supply to the capsule heater H. In a modification, Fig. 4 (not shown), the reference voltage is obtained by rectifying the voltage across an auxiliary winding coupled to the charging inductance in the anode circuit of the thyratron. In a further modification shown in Fig. I the voltage pulses across the inductor L1 in the cathode circuit of the thyratron V1 are compared with a reference voltage and the resultant applied via a buffer amplifier V2 to a blocking oscillator V3. As long as the pulse amplitude across L1 is sufficient, the output of V2 triggers the oscillator, the output of which is rectified in the grid circuit V4 and cuts off the anode current of this valve. Hence the saturable reactor in the anode circuit passes little current to the capsule heater. A fall in the pulse amplitude across L1 causes the oscillator V3 to stop oscillating, the anode current of V4 rises, and the heater current increases to correct for the drop in gas pressure.
Patent GB-1240540-A (GB)
Title: Improvements relating to photographic apparatus
IPC: G03B19/12
Filed: 1968-07-25
Abstract: 1,240,540. Photographic cameras. INTERNATIONAL POLAROID CORP. July 25, 1968 [July 25, 1967], No. 5839/71. Divided out of 1,240,531. Heading G2A. The camera is described in Specification 1, 240, 531 the invention being directed to a collapsible camera having four pivotally coupled body sections so as to form a closed loop, one section containing an objective lens and other section containing a film support, extensible light-sealing means forming a light tight enclosure with the sections.
Patent GB-1489697-A (GB)
Title: Shelf supporting arrangement
IPC: A47B57/42
Filed: 1975-02-12
Abstract: 1489697 Shelf supports R BOHNACKER 12 Feb 1975 [12 Feb 1974] 5955/75 Heading A4B A shelf support arm. 16 has a plurality of hooks 17, 18 which engage slots 6, 7 or 21, 22 in a wall mounted bracket 1-7 or 19-23, the number of hooks being equal to the number of slots, and the bracket including at least one pair of holes 5 or 23 disposed on opposite sides of the slots to receive fixing screws. In one embodiment, Fig. 1, the bracket is in the form of a trough and the holes 5 are provided in the base 1 of the trough. Alternatively, Fig.2 (not shown) the screw holes (10) are provided in side flanges (9) of the trough. Alternatively, Fig.3 (not shown) the wall bracket is U-shaped with outwardly extending flanges (11) at the free edges of its side limbs (14), the screw holes (12) being provided in the flanges (11). In a further embodiment, Fig.5, the slots 21, 22 have a width equal to the spacing apart of the side limbs 19 of the bracket and substantially equal to the thickness of the shelf support arm 16.
Patent GB-576123-A (GB)
Title: Improvements in the control of compound motors used for rheostatic braking
IPC: B60L7/02
Filed: 1942-05-04
Abstract: 576,123. Control of D.C. motors. GENERAL ELECTRIC CO., Ltd., and CROFT, E. H. May 4, 1942, No. 5974. [Class 38 (iii)] Non-regenerative braking. In a braking system for a vehicle propelled by a D.C. electric motor in which the first motion of a controller has applied rheostatic braking and further motion has applied mechanical fiuid pressure braking, current through a separately excited field is reduced to zero, or a value low enough to prevent undesirable heating, when the speed has dropped' to a predetermined low value. The figure shows electromagnetic contacts 1, 2 and 3 controlling the rheostatic braking. Contactor 1 connects the motor armature to a braking rheostat and contactor 2 gives partial field excitation. Contactor 3 increases field excitation. The final controller step applies mechanical brakes. Relay 10 is closed by the armature e.m.f. or current and opens circuit 8 at a predetermined low speed. Relay 11 is piston-operated to open circuit 9 when mechanical braking is applied. Contactors 1, 2 and 3 are de-energised only when both circuits have opened. Relay 10 may be connected to the armature only when the controller is in a braking position. Relay 10 may be mechanically operated in response to vehicle speed.
Patent GB-138735-A (GB)
Title: Apparatus for preventing the entrance of enemy projectiles into the muzzles of guns during the loading operations
IPC: F41A35/04
Filed: 1919-03-11
Abstract: 138,735. Schneider et Cie. Nov. 22, 1918, [Convention date]. Ordnance, muzzle shutters for; breech mechanism.-Consists in providing a " tank " or like gun with a muzzle-shutter which is mounted on a longitudinal rock-shaft operated by a movable part of the breech-actuating or firing mechanism, so that enemy projectiles are prevented from entering the gun muzzle during loading, or when the gun is not firing. A pivoted muzzle-shutter C operated by the actuating-lever F of a wedge breech action is shown in Figs. 1 and 2, the muzzle-shutter and the lever F both being connected to the extremities of a longitudinal rockshaft E. In modifications, (1) a muzzle-shutter may be connected by cranks and links to a screw breech mechanism, and (2) the shaft E of a shutter, similar to that shown in Fig. 1, may be connected to a plunger which actuates a firing-hammer pivoted to the breech end of the gun belowthe breech-block.
Patent GB-1167792-A (GB)
Title: Core Handling Device with Air Sorting System.
IPC: B07C5/344
Filed: 1967-02-08
Abstract: 1,167,792. Gauging and sorting apparatus. RAMSEY ENG. CO. Feb.8, 1967 [Sept. 13, 1966], No.6095/67. Heading G1M. In apparatus for sorting and handling fragile articles e.g. toroidal cores, the cores 90 are delivered by gravity through a chute 12 with their axes parallel to the axis of a probe needle 91, an apertured probe needle guide being provided on the chute 12 at 92. The stack of cores rests on a release lever 60 movable in a plane perpendicular to the direction of movement of the probe 50; after testing the lever 60 is moved away to permit the lowermost core to drop into the chamber 74 of the selection assembly. Dependent on the test results a control valve is actuated to drive air under pressure through passageways leading to the selector assembly. In the case of a current article, air under flow through radial nozzles 82, 83 to take the article away through accept tube 84. If the article is not acceptable it is deviated through a reject tube 76.
Patent GB-1369962-A (GB)
Title: Circuits for igniting fluorescent lamps
IPC: H05B41/04
Filed: 1973-02-08
Abstract: 1369962 Circuits for starting discharge lamps R E SMOLYANSKY L I FAINSHMIDT V A SMOLYANSKY E I AFANASIEVA L A PETROV J P ZAVALSKY and E A ALPEROVICH 8 Feb 1973 6141/73 Heading H2H A circuit for starting a discharge lamp 1 comprises electronic switches 5, 10 and a photosensitive device 16 positionable adjacent one of the thermionic electrodes 2 of the lamp and responsive to its light emission. When an A.C. supply is connected to terminals a, b heating current flows through the electrodes 2 via the thyristor 5 connected across a bridge rectifier 4. The lamp 1 eventually emits a flush of light which is received by the device 16 thereby lowering its resistance and triggering the thyristor 10. The thyristor 5 is therefore switched off causing resonance in the circuit formed by a ballast 3 and a capacitor 17. A high voltage pulse is therefore applied to the lamp to start the lamp. In a modification the thyristors and the rectifier bridge are replaced by a pair of triacs.