baber/WOPTO huggingface dataset:
Patent GB-873806-A (GB)
Title: Improvements in or relating to echo sounders
Inventor: LINDARS JOHN HENRY
IPC: G01S7/52
Filed: 1959-02-13
Abstract: 873,806. Echo sounders. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. Sept. 10, 1959 [Feb. 13, 1959], No. 5178/59. Class 40(7) An echo-sounder comprises two transmitreceive transducers with their pressure wave surfaces spaced apart in the direction of propagation by an amount substantially differing from one half-wavelength, and multiples thereof, at the operating wave frequency, means for simultaneously actuating the surfaces by A.C. pulses from a source, and a receiver input circuit coupled to the actuating means and coupled to the source such that pulses therefrom produce substantially no voltage across that circuit. Shallow-water depth sounding and fish finding is thus rendered possible. In the first embodiment, Fig. 1, pulses at an ultrasonic frequency are applied at terminals 1, 1 and transformers 2, 3 are connected such that the pulses at points 4, 4 are in phase with amplitudes equalized by adjustment of components 5, 6; thus no input from the source arises at receiver input terminals 8, 8. The spacing between magneto-strictive transducers 9, 10, preferably #/8, ensures that echo inputs at points 4, 4 are not in phase. In the second embodiment; Fig. 2, a single transformer 11 and a 180 degrees phase shifter 12 are utilized, an attenuator 13 balancing the attenuation in the phase shifter; alternatively, the 180 degrees phase shift may be distributed between the output lines to terminals 4, 4. The transducers may be combined into a single structure.
Patent GB-1213185-A (GB)
Title: Improvements in cable cleats
Inventor: CHAPLIN SYDNEY FRANK
IPC: F16L3/10
Filed: 1968-02-01
Abstract: 1,213,185. Clamps. LONDON ENGS. PATTERN CO. Ltd. 14 Jan., 1969 [1 Feb., 1968], No. 5236/68. Headings E2B. [Also in Division A4] A cable cleat comprises a base member 11 to be secured to a support surface, and two clamping arms 16 releasably attached at their inner ends to the base member at spaced positions thereon and extending from a front face thereof, the arms being adapted to be turned towards one another to embrace a cable or a group of two or more cables 12 extending across said front face, and the outer ends of the arms being engageable by means for drawing them towards one another to clamp the cables between the arms and the base member, wherein, at each position of attachment of an arm, the front face of the base member has a rectangular slot 14. Opening in the front wall of a rear recess, the inner boundary surface of the slot, at the side thereof which is nearer to the other slot, meets the front wall of the recess at an angle to form a sharp rear edge, and at the opposite side of the slot its outer boundary surface diverges relatively to the inner boundary surface and inwardly to the recess, the inner end of each arm is extended as a generally rectangular section lug 15 which is freely slidable with a clearance longitudinally into and out of its associated slot respectively to attach the arm to and detach it from the base member, so that each arm can be rocked on the front of the outer boundary surface of its slot towards and away from the other arm, and the lugs will engage behind said outer boundary surfaces of the slots to firmly inter-lock the arms with the base member when the arms are in clamping engagement with the cable or group of cables, and on the side of each lug which is adjacent said inner boundary surface of its slot there is a main hooking projection 17 extending linearly and transversely across the lug to be adapted to engage behind said sharp rear edge, whereby when the cleat is mounted with one arm above the other, the lower arm can be rocked on the front of the outer boundary surface of its slot to engage the main hooking projection 'behind said sharp rear edge to limit the extent of rocking movement of the lower arm away from the upper arm. In the construction shown each lug is of approximately arcuate form in longitudinal section and the raised hooking projections 17 is disposed intermediate the ends of the lug and each lug is formed with a second hooking projection 18 disposed linearly across the convexity of the lug near the free end of the latter, the latter hooking projection enabling the arm to be held engaged with the baseplate in a swung down position indicated in dashed lines. As shown the end portions of the arms are provided with holes for engagement by a bolt, the arms being held together between the bolt head and a nut on its shanks.
Patent GB-901021-A (GB)
Title: Improvements in or relating to paper or the like
Filed: 1959-02-16
Abstract: 901021 Bactericidal paper &c UPJOHN CO 16 Feb 1959 [24 March 1958] 5310/59 Class 96 Neomycin or its salts, e.g. the sulphate, hydrochloride, laurate, myristate, palmitate, &c. is applied to paper, laminated paper or paperboard as by spraying or dipping during manufacture, or by adding to the paper pulp, e.g. at a Jordan refiner. The products, which may have 5 to 200 parts of neomycin per million of paper or paper-board may be used for animal cage floors, food-trays and carriers, and have recesses in one surface which may be made by embossing-rolls. The other surface is coated with a layer of wax or resin, or backed by wax- or resin-coated or impregnated paper.
Patent GB-578104-A (GB)
Title: Improvements relating to riveting apparatus
IPC: B21J15/34
Filed: 1944-03-22
Abstract: 578,104. Apparatus for setting tubular rivets. AVIATION DEVELOPMENTS, Ltd., and SPOONER, R. A. W. March 22, 1944, No. 5321. [Class 43] Two pivoted jaw members of a "gun" for expanding the ends of tubular rivets are mounted at the nose so as to be slid between two positions, in one of which, into which they are urged by spring action, they may be opened by the leading rivet, and in the other of which they are positively held closed, moved into such position by the pressure applied axially of the gun during the actual setting operation, when the jaws serve as an anvil. In the form shown, the jaw members 22, 23, Figs. 1, 3, are held in a housing 27 screwed at 8 to the forward end of the barrel 7 of the "gun." Balls 30 seated in hemi-spherical recesses in their adjacent faces form the pivots about which they move. Tails 28 on the jaws project within the housing 27 to contact a flange on the forward end of a cup 32, the rearward face of the flange contacting a spring 31 the forward end of which bears on a flange 96 of a tube 33, which forms a guide for rivets 12 mounted on a mandrel 9 having an enlarged setting head 24. When the jaws 22, 23 are pressed against the head 21 of a rivet inserted in two pieces 92, 93 of material to be united, and hydraulic pressure fluid is admitted to the space 16 behind a piston 14 mounted on the barrel 7 and within the casing 1 of tne gun, to produce relative longitudinal movement between the barrel 7 and casing 1, to draw the head 24 through the leading rivet 12 in the work, the spring 31 is compressed and shoulders 29, between spherical-shaped faces 25 on the jaws 22, 23 and the tails 28, are held by the forward end 29 of the casing 27 and prevented from pivoted movement. When such pressure is released after the rivet has been set, the spring 31 pushes the jaws 22, 23 forwards into a position where the head of the leading rivet, by contact with the inner bevelled face 24 of the jaws, may pivot them apart, about a point on the line joining the balls 30, to compress the spring 31 somewhat by the tails 28 and to permit the leading rivet to pass through. The jaws 22, 23 are then reclosed by reaction of the spring 31 against the cup 32 and tails 28. The hydraulic operation of the "gun" is described in Specification 578,105, the tail chuck 10 by which the rear end of the mandrel 9 is gripped and held relatively to the "gun" casing in Specification 578,106, and the device 13 by which the rivets are fed in Specification 578,107.
Patent GB-457190-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1935-02-20
Abstract: 457,190. Spray carburetters. ARNOLD, R., 6, Schlossstrasse, Dresden, Germany. Feb. 20, 1935, No. 5465. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 13, 1936]. [Class 7 (iii)] In a carburetter in which a cam 21 on the spindle of the air inlet valve operates a fuel valve by engaging the end of its stem 23, a wedge member, having a pointed portion 28 leading to a parallel section 28a which ends in a thicker inclined portion 29, is interposed between the cam 21 and head 23 to adjust the quality of the mixture to compensate for altitude &c. A second air inlet valve 37 is normally held clear of the air inlet by a forked arm 39, but if the fuel supply should fail, the arm is turned to release the valve which functions under suction from the engine and permits a fuel supply from a reserve tank to be drawn thereby into the carburetter, a two-way cock being simultaneously operated with the forked arm to put the tank into communication with the carburetter.
Patent GB-781724-A (GB)
Title: Improvements in or relating to rotary brushes
Inventor: PAXTON COLLIER GEORGE
IPC: A46B13/00
Filed: 1954-02-25
Abstract: 781,724. Rotary brushes. SERVICE (ENGINEERS), Ltd. Feb. 24, 1955 [Feb. 25, 1954], No. 5521/54. Class 19. A rotary brush comprises a plurality of similar components assembled along an axis in such a manner that the brush may readily be disassembled, each component comprising a ring formed with a series of radial holes in its periphery and a tuft of bristles in each hole held by separate locking devices in such a manner that each tuft may be independently released when the brush is disassembled. As shown, rings such as 14 are arranged side by side on a tube 13 held by end caps 10 on a driving shaft 11. Each ring is provided with two circumferential rows of radial holes in which the sleeved ends 17 of bristle tufts are secured by grub screws 18 provided in each side of the ring. Specification 711,598 is referred to.
Patent GB-306952-A (GB)
Title: Improvements in or relating to electric irons
IPC: D06F75/26
Filed: 1929-02-20
Abstract: 306,952. Siemens - Elektrowarmo- Ges. Feb. 28, 1928. [Convention date]. Thermostats.-A thermal element forming part of a switch on an electric iron, comprises an expansible copper plate 21 which co-operates with a less expansible rod 23 of stainless steel pivoted to the plate at a knife edge bearing 26.
Patent GB-538922-A (GB)
Title: Improvements in and relating to synthetic resinous condensation products and the like
IPC: C08C19/00
Filed: 1940-03-29
Abstract: 538,922. Resinous condensation products. BRITISH RUBBER PRODUCERS' RESEARCH ASSOCIATION, and POPHAM, F. J. W. March 29, 1940, Nos. 5690 and 16205. [Class 2 (iii)] Synthetic resinous condensation products are prepared by mixing oxidized rubber, prepared as described in Specifications 417,912, 462,613 or 462,627, [all in Group V], with maleic anhydride and phenol, heating the mixture in the presence of air or oxygen, and then reacting the mixture with formaldehyde while preventing under rise of temperature. In a modification, the oxidized rubber is first dissolved in a small proportion of the phenol, the maleic anhydride added, the mixture heated to the point of incipient gelling, the remainder of the phenol then added, and the reaction completed with formaldehyde or paraformaldehyde ; in a further modification, the gelled mixture of the oxidized rubber, the proportion of the phenol and maleic anhydride is milled with phenol formaldehyde resin and hexamine. The phenol may be replaced by cresol. The resins obtained are soluble in ketones, alcohols and esters, but are insoluble in aromatic hydrocarbons and petroleum products ; they may be used in the preparation of adhesive compositions, bonding agents, e.g. for abrasives, moulding powders, impregnating agents for fabrics, paper and the like. Specifications 368,902, [Group V], and 507,995 are referred to.
Patent GB-525246-A (GB)
Title: Improvements in and relating to prepayment mechanism for meters and basic charge collectors
IPC: G05F1/52
Filed: 1939-02-21
Abstract: 525,246. Prepayment mechanism. UNITED GAS INDUSTRIES, Ltd., CHARLES, A., and CHRISTIAN, A. J. Feb. 21, 1939, No. 5829. [Class 27] A prepayment mechanism for meters or for rental of appliances, house property &c. comprises a quantity mechanism 3, a control element 14 related thereto for operating, say, a gas inlet valve 17, and coin-holder mechanism 1 adapted for use with a plurality of sizes of coin and for transmitting through the quantity mechanism 3 to the control element 14 a determined travel irrespective of the coin which has to be prepaid. The coin-holder mechanism 1 may be suitable for one value coin only, and be readily removable for substitution of a coin-holder mechanism suitable for another determined value coin. A transmission gear 5, 6, 7, 8 is shown for imparting drive from the coin-holder mechanism to the quantity mechanism, which may be in the form of a nut moved forward on a rotating threaded spindle, and is returned by the metering mechanism or by a time control mechanism 20. The mechanism 20 may be an electric clock operated by a battery 21. When substitution coin holder mechanisms are employed the coin slots in the respective change discs are of the size required for the coin to be employed, and the discs are held in position by a retaining ring.
Patent GB-840746-A (GB)
Title: Mechanism for feeding articles into a machine
IPC: B65G47/14
Filed: 1957-02-21
Abstract: 840,746. Feeding caramels. SERAGNOLI, E., and SERAGNOLI, A., [trading as SOC. G. D. IN ACCOMANDITA SEMPLICE]. Feb. 21,1957 [Feb. 25,1956; April 11, 1956 (2)], No. 5925/57. Class 78 (1). Caramels are thrown in bulk into container 34 and are discharged therefrom to step-by-step rotating disc 20 by one or more step-by-step rotating discs 27, each disc 27 having bottomless holes 31 into which the caramels fall, being supported therein on supports beneath, and each caramel in its hole 31 being transferred to a hole 23 in disc 20 by a reciprocating plunger when the two holes coincide during an interval of rest. The caramels now in holes 23 and supported therebeneath are conveyed by the disc to position 36 whereat they are discharged in a wrapping operation by two complementary plungers. The discs 27 may be positioned overlapping or underlapping disc 20 and may be provided with a double row of holes and may have a conical centre portion. The disc 20 may be replaced by an equivalent endless belt conveyer having holes therein.
Patent GB-1160925-A (GB)
Title: 2-Substituted Benzofuran Derivatives
Inventor: GHELARDONI MARIO
IPC: C07D307/80
Filed: 1967-02-08
Abstract: 1,160,925. Benzofurancarbinol derivatives. A. MENARINI S.A.S. 8 Feb., 1967, No. 5935/67. Heading C2C. Novel pharmaceutically active compounds of Formula I wherein R is methyl or phenyl optionally substituted in the para position by Br, Cl, or I or NO 2 , and R<SP>1</SP> is hemisuccinyl, hemiphthalyl, nicotinyl, diethylaminoethyl or may be hydrogen if R is not methyl, are prepared as follows (a) in the case of the alcohols (R<SP>1</SP> = H) by reduction of the corresponding ketones, (b) in the case of the esters by esterification of the aforementioned alcohols, and (c) in the case of the ether, either by reaction of the alcohol with diethylaminoethyl halide or by reaction of diethylaminoethyl alcohol with a 2-benzofuryl chloro methane derivative.
Patent GB-234565-A (GB)
Title: Improvements in the manufacture of vacuum electric tube devices having electron emitting cathodes
IPC: H01J9/04
Filed: 1924-03-07
Abstract: 234,565. Robinson, E. Y., and Metropolitan-Vickers Electrical Co., Ltd. March 7, 1924. Electrodes; oxides, obtaining: treatment after electrolysis.-A coating of oxides of barium and strontium is applied to a platinum-iridium strip filament containing 10 per cent of iridium by electrodeposition in a bath consisting of a mixture of barium and strontium iodides dissolved in acetone with a trace of water, as described in Specification 221,851, a current density of 0.25 amp. per sq. cm. being supplied for one minute. A protective coating, such as flexile collodion, gum, resin, or cellulose or its derivatives, is applied subsequently to the oxide coating, and is removed by flashing the filament after mounting in the bulb of a thermionic valve.
Patent GB-557216-A (GB)
Title: Improvements in dynamo-electric machines particularly of the dynamometer or eddy current brake type
IPC: H02K49/04
Filed: 1942-05-05
Abstract: 557,216. Electro-magnetic clutches and brakes. BRITISH THOMSON-HOUSTON CO., Ltd., WALKER, J. H., and FITCHETT, F. May 5, 1942, No. 6015. [Class 35)] [Also in Group XXXIV] In dynamo-electric machines for use a dynamometers, brakes o couplings, the stator is formed of a laminate( core with slots carrying hollow conductors which are short circuited, and the rotor is formed with teeth by which alternat ing current is induced in the conductors, and means are provided for circulating fluid there through. In the machine shown in Fig. 1 the hollow conductors D are mounted in slots in the laminations B of a yoke A, and are shortcircuited by a ring M, or by the header E by which cooling fluid is circulated through the conductors ; a detachable cover F is provided on the header for inspection and cleaning. The rotor H has half the number of slots of the stator, and may be energized by a D.C. winding L, and slip rings if necessary. As applied to the homopolar machine shown, the winding is disposed between two parts of the rotor, and is supported by bolts N from the stator. Specification 272,229, [Class 35], is referred to.
Patent GB-349929-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
IPC: H03G5/06
Filed: 1930-02-24
Abstract: 349,929. Valve amplifying circuits. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, and PADDLE, L. H., 2, Burlington Gardens, Chiswick, both in London. Feb. 24, 1930, No. 6132. [Class 40 (v).] An audio-frequency source, e.g. a gramophone pick-up, is connected to the grid of a valve amplifier through a resonant circuit tuned to cover a band of low audio-frequencies, thereby increasing the amplification at said frequencies whilst not interfering with the normal amplification at higher frequencies. As shown in Fig. 2, the source 6 is connected through the circuit 1, 2, 7 to the valve grid. The coil 1 forms the primary of a transformer, the secondary coil 4 of which is connected between grid and filament. The variable resistance 7 may be omitted. In a modification, Figs. 3 and 4 (not shown), the junction point of the coils 1, 4 is on the pick-up side of the resonant circuit 1, 2. In a further modification, Fig. 6, the secondary coil 4 is connected between the resonant circuit 1, 2 and the grid, and a choke coil 12 and variable resistance 13 are connected in series between the resonant circuit and filament. The source of audio-frequency current may comprise the plate circuit of a preceding valve, Figs. 5 and 7 (not shown), a condenser being interposed to permit the application of different D.C. voltages to the plate and grid. A further transformer 16 may be interposed between the resonant transformer 1 and the valve grid, as shown in Fig. 8. Reference has been directed by the Comptroller to Specification 328,331, [Class 40 (v), Wireless signalling &c.].
Patent GB-986600-A (GB)
Title: Improvements in coupling devices
IPC: B65H23/04
Filed: 1964-02-13
Abstract: 986,600. Couplings. O. HACHTMANN. Feb. 13, 1964 [Feb. 13, 1963], No. 6136/64. Headings F2C and F2D. A coupling for connecting a shaft to a hollow cylindrical core upon which a web or tape may be wound, comprises a member 2 fitting on a squared end 1 of the shaft and having guide slots 3 parallel to the sides of the shaft for clamping rollers 5 which are provided with bolts 4 slidably engaged in oblique grooves 7 formed in a ring 8 which is mounted for limited angular movement relative to the member 2. A cylinder 10 to be clamped to the shaft is placed over the rollers 5 in an eccentric position, for example due to the weight of the cylinder for a non-vertical shaft, so that at least one of the rollers frictionally engages the internal surface of the cylinder. Clockwise rotation of the shaft 1 causes the roller 5 engaging the cylinder 10 to move along its slot 3, and hence due to the ring 8 causes all the rollers to move simultaneously into the dotted line position in Fig. 2 in which the cylinder 10 is centred on the shaft and clamped thereto. In the modification shown in Fig. 5, the coupling is effective for both directions of rotation of the shaft, and has rollers 15 slidably engaging slots 19 parallel to the sides of the shaft and also engaging radial slots 18 in a member 16 having limited angular play on the shaft. In this embodiment the rollers 15 are suitably shaped for engagement with the guide slots, the bolts 4 being dispensed with. In both embodiments the slots 3, 19 are disposed so that the rollers roll on the surfaces of the shaft 1. The rollers may be knurled or fluted or covered with rubber or other friction material.
Patent GB-195056-A (GB)
Title: A process for making single and multi-colour photographic paper pictures and diapositives
IPC: G03C7/46
Filed: 1923-03-03
Abstract: 195,056. Vobach, W., (Assignee of Gleichmar, A.). March 16, 1922, [Convention date]. Bichromated colloid; photo-mechanical printing- surfaces.-In a process of producing dye-prints on paper, or diapositives, of the kind in which a colloid image is coloured with aniline dye and brought into close contact with a gelatine layer coated on paper, to which the dye migrates, the colloid image is produced in a sensitized colloid layer with which is incorporated finely-divided insoluble substances such as carbon, chalk, sludge, resin &c., which facilitate absorption of dye by the hardened parts of the layer. The colloid layer may be of bichromated gelatin, and be expcsed from the rear under a negative and developed in warm water without transfer to remove the soft unexposed parts of the gelatine, thus producing a diapositive in relief which may be dyed immediately and used as a printing plate. The process may be applied to the production of multi-colour prints.
Patent GB-207100-A (GB)
Title: Improvements in bomb throwers to be applied to the barrels of portable firearms
IPC: F41C27/06
Filed: 1923-03-03
Abstract: 207,100. Ciano, A. March 3, 1923. Barrel.-A bomb - throwing attachment for rifles and machine guns comprises a tube a forming a continuation of the barrel bore, a large-bore tube b to receive the bomb, and a chamber d adapted to receive the explosion gases from the barrel and connected to the bomb tube b through a rerestricted orifice or nozzle f formed of two conical portions., as shown, or of a single converging conical portion.
Patent GB-379232-A (GB)
Title: Improved flushing cistern
IPC: E03D1/22
Filed: 1932-03-02
Abstract: 379,232. Siphon-discharge waterwaste-preventers. ALLNER, J., 233, High Street, Poole, Dorset. March 2, 1932, No. 6274. [Class 26.] A water-waste preventer comprises main and auxiliary tanks a, b, as shown in the Figure, water being supplied to the tank a and discharged from the tank b ; the tanks communicate by a siphon c of which the outlet is disposed below the level of the discharge orifice d so that when the tank a is refilled after discharge an air lock is formed in the siphon. Means, such as a movable body e, are provided to lower the level in the tank b and thus to release the air-lock and effect discharge. The tank a may be divided into two portions communicating by a siphon in order to delay refilling of that portion of the tank surrounding the siphonmouth and thus to ensure the formation of an effective air-lock. Further, the siphon-mouth may be bell-shaped and provided with air-inlet holes.