baber/WOPTO huggingface dataset:
Patent GB-648612-A (GB)
Title: Improvements in or relating to noise suppression circuits for electrical signalling systems
IPC: H03G11/00
Filed: 1948-03-10
Abstract: 648,612. Radio interference suppression circuit. GENERAL ELECTRIC CO., Ltd., and BEDDOES, M. P. March 10, 1948, No. 7359. [Class 40 (v)] A circuit for suppressing noise impulses of excessive amplitude comprises a valve amplifier with a negative feed-back path which is rendered inoperative by desired signals, but operative during noise impulses of amplitude greater than that of the desired signal. The Figure shows part of the sound channel of a television receiver, in which intermediate frequency energy is applied to detector D4, and triode T1 acts as the first low-frequency amplifier. A diode D1 together with resistances R7, R8 and condenser C8 are provided, so that the potential at the common point of the resistors R7 and R8 approaches the peak negative value of the modulation wave. The anode of a diode D2 is thus biassed negatively, but the output from triode T1 is also applied to the anode of diode D2 via the network R10, C7, R11, and if a noise impulse of excessive amplitude occurs, diode D2 is rendered conducting to apply negative feed-back to the grid of valve T1 to reduce the amplitude of the pulse. The value of the time constant circuit R7, C5, R8, is such that the rate of change of bias of diode D2 with increase of desired signal amplitude is greater than that with decrease of this amplitude. The diodes may be replaced by metal or crystal rectifiers.
Patent GB-1509921-A (GB)
Title: Electrical switch
IPC: H01H35/14
Filed: 1975-05-19
Abstract: 1509921 Inertia switches A E BERRIDGE 19 May 1975 [19 Feb 1974] 7406/74 Heading H1N In an inertia switch for monitoring vehicle accelerations a conductive ball 58 moves on a concave support 56 and is engageable with an adjustable conductive plate 54 associated with an alarm buzzer 32. The conductive plate 54 is adjustably threaded on the switch housing 50 having a ball and socket mounting 52 for adjustment of the housing relative to the vehicle.
Patent GB-572976-A (GB)
Title: Improvements relating to compressors for drawers of filing or other cabinets
IPC: A47B63/00
Filed: 1944-04-21
Abstract: 572,976. Filing cabinets. CONSTRUCTORS, Ltd., and FINER, H. J. April 21, 1944, No. 7471. [Class 146 (i)] In a filing cabinet or like article of furniture having a drawer or drawer! each incorporating a compressor, the com pressor 1 has guide plates 5 at its sides snugly engaging grooves 6 in the sides of the drawer to maintain it in a vertical position, and is locked against move ment in one direction by spring-urged pawl! 9 pivoted on th( plates 5 and engaging racks 11 of wavy formation formed by depressions in the lower walls of the grooves 6, release being effected by the operation of a handle 16. By the provision of two nose portions 12, 13 on the pawl for engaging the rack 11, the locking effect is increased.
Patent GB-888064-A (GB)
Title: Improvements in or relating to machines for counting currency notes, tickets and thelike
Inventor: PARFETT FRANK
IPC: G06M7/06
Filed: 1959-03-04
Abstract: 888,064. Sheet-delivery apparatus. PITNEYBOWES Ltd. Feb. 23, 1960 [March 4, 1959], No. 7528/59. Class 100(1) An improvement in the machine for counting paper and card articles described in Specification 801,762 comprises a cam 9 adapted to operate a switch 5 to complete the circuit for a solenoid 4 which trips the brake mechanism, not shown, which interrupts the feeding of further articles into the machine when (a) more than one article is fed into the machine (b) a predetermined number of articles has been passed through the machine. The machine is driven by a continuously running motor 1 controlled by a switch 2. The solenoid 4 trips a latch 3 to apply the brake. A gear 6, driven by the counting mechanism, has an adjustable single-toothed spur wheel 7 engaging a gear 8 which is indexed by one tooth for each revolution of the gear 6. The cam 9 has opposed lobes 10 and 11 and is fixed to the gear 8. The lobes operate the switch 5 alternately, such that once in each half revolution of the cam 9 the brake is applied through tripping the latch 3. Closure of switch 5 also energizes a relay 13 which opens a contact 14 in the circuit to the solenoid 3. Closure of the switch 5 lights a lamp 15 to indicate that the required number of articles in a batch has been counted. The cam does not complete its last stepping movement of the cam before the machine is stopped. For example, if the cam moves in steps of 36 degrees it need only be moved through 30 degrees before it acts on the microswitch to stop the machine so that on restarting the cam would be indexed through the remaining 6 degrees so releasing the microswitch, extinguishing the lamp and de-energizing the relay. The number of lobes on the cam 9 may be varied or a second tooth may be added to the spur wheel 7 to vary the number of articles in a batch. Specification 709,436 also is referred to.
Patent GB-1420528-A (GB)
Title: Process for the production of fructan-degrading enzyme
IPC: A61K8/66
Filed: 1974-02-19
Abstract: 1420528 Fructan degrading enzyme SANKYO CO Ltd 19 Feb 1974 [26 Feb 1973] 7547/74 Heading C3H Fructan degrading enzyme is obtained by cultivating a fructan degrading enzyme producing micro-organism of the genus Talaromyces, Eupenicillium, Sporotrichum, Sordaria, Chaetomium, Gelasinospora, Stachybotris or Actinomyces in a nutrient medium therefor, and recovering fructan-degrading enzyme from the resulting culture. The cultivation is preferably conducted at about 28‹ C. at pH 5À5-7À0 using the micro-organisms: Talaromyces flarus var. flarus, Sordaria humana, Chaetomium subspirale, Gelasinospora longispora, Stachybotris lobulata, Eupenicillium javanicum, Sporotrichum schenkii, Talaromyces stipitatus, Talaromyces luteus, Sordaria fimicola, Chaetomium aureum, Chaetomium atrobrunneum Gelasinospora cerealis, Stachybotrin atra, Actinomyces longisporons, Actinomyces cyanoalbus, or Actinomyces lavendofoliac, most preferably using Talaromyces flavus var. flavus FERM P-1892.
Patent GB-801054-A (GB)
Title: Moisture separator
IPC: F24D19/08
Filed: 1956-03-12
Abstract: 801,054. Steam traps; separatine liquid particles from gases. SPECIALTIES DEVELOPMENT CORPORATION. March 12, 1956 [May 10, 1955], No. 7619/56. Classes 64(2) and 123(3) [Also in Group XXIX] Pressurized gas, such as atmospheric air, containing moisture, is admitted to the casing 10 through an inlet nozzle 35 and rotates a turbine wheel 17 which drives a cam 61 via a worm gear. The cooling effect resulting from the expansion of the gas as it passes through the nozzle together with the turbulence to which the gas is subjected in the casing causes condensation of the moisture in the gas; this condensate accumulates in the bottom 39 of the casing whilst the gas exhausts by a tubular member 37. Rotation of the cam 61 gradually depresses a plunger 52 against the action of a spring 56 until the cam step passes the upper end of the plunger 52 whereupon the spring expands and urges the plunger away from a drain opening 45; a plunger pin 54 then engages the upper end of slots in a valve casing to lift a conical valve member 50 from the opening 45 so that the pressure in the casing ejects the trapped moisture. The force of the moisture passing through the opening 45 serves to reseat the valve member 50 as soon as the spring urge is spent: the valve is only open for a fraction of a second during each revolution of the cam 61. The spring 56 and the pressure in the casing normally serve to maintain the valve member 50 seated. A turbulence baffle and a heating coil may be arranged in the casing 10.
Patent GB-799655-A (GB)
Title: Improvements in or relating to the manufacture of hollow fluid-conducting members
IPC: B21C37/14
Filed: 1957-03-07
Abstract: 799,655. Making pipes, heat-exchangers; continuous casting. REVERE COPPER & BRASS, Inc. March 7, 1957 [March 8, 1956], No. 7678/57. Addition to 784,484. Classes 83 (1) and 83 (2). The invention of the parent Specification is modified in that the billet is continuously cast by discharging molten metal into a chilled ring on to a descendable support and the friable elongated inserts comprising longitudinal sections with interengaging ends, are fed and guided downwards as the support descends. The chilled ring 189 is surmounted by a runner box 294, and initially the lower end of the ring is closed by a ram-operated platform 197, on top of which are two abutting plates 209, 207, the former having notches 281 along the abutting edge to accommodate and position the lower ends of the first sections of the inserts 45. Across the top of the runner box extend abutting bars 321, 323, the latter having spaced notches which form guide passages 291 for the inserts. Above these bars are vertical tubes 295 supported from vertical standards 303 by horizontal bars 311, which tubes serve both as guides and magazines for the insert sections. These sections have their ends shaped as in Fig. 5 so as to interengage one with another to form a continuous length. Specification 799,700 is referred to.
Patent GB-584499-A (GB)
Title: Improvements in safety blade magazines
IPC: B65D83/10
Filed: 1944-04-25
Abstract: 584,499. Safety-razor blade magazines. BENJAMIN, S. H. April 25, 1944, No. 7716. [Class 18] In a device for changing the blade in a safety razor in which a blade magazine is contained in a blade-magazine holder, the magazine consists of top 70, Fig. 9, sides 71, and bottom members 72 having an opening 73, and end members 74, 75, Fig. 8 of which the latter constitutes an opening 76 through which the lowermost blade 100 of a stack of blades contained in the magazine and pressed by a spring 77 is ejected. The top front edge of the magazine has openings 178, 179, Fig. 1, of which the former receive pins 52, the purpose of which is to ensure that a magazine not possessing the openings 178 shall not be used with the razor.
Patent GB-1421675-A (GB)
Title: Silicone elastomers which are paintable
IPC: C08J7/043
Filed: 1974-02-20
Abstract: 1421675 Silicone elastomers DOW CORNING CORP 20 Feb 1974 [20 Feb 1973] 7723/74 Headings C3T and C3S A RTV silicone elastomer composition is made by mixing (A) 100 p.b.w. of an hydroxylterminated polydimethylsiloxane having a viscosity of from 1000 to 100,000 cs. at 25 C.; (B) 5-200 p.b.w. of a filler, (C) 0-14À5 p.b.w. of an alkoxy silicon compound selected from ethylorthosilicate, n-propylorthosilicate, ethylpolysilicate and n-propylpolysilicate, (D) 0À5-10 p.b.w. of a silane of the formula wherein R is methyl, ethyl or propyl and x= 1-4, the combination of (C) and (D) providing from 1-15 p.b.w. per 100 p.b.w. of (A), and (E) 0À1-5 p.b.w. of a metal salt of a carboxylic acid wherein the metal ranges from lead to manganese in the electromotive series of metals and said carboxylic acid has less than 16 carbon atoms. Filler (B) can be a reinforcing filler such as a treated or untreated silica filler or a non-reinforcing filler. Examples of fillers are TiO 2 , CaCO 3 , ZnO, diatomaceous earth, crushed quartz; asbestos, zirconium silicate and carbon black. The preferred metal salts (E) are tin salts. In the examples compositions are prepared by mixing an OH-terminated polydimethylsiloxane (12,500 cs.), a fume silica filler surface treated to provide trimethyl siloxy units thereon, a silane of the formula dibutyltin diacetate alone and together with npropylorthosilicate, which are then cured at room temperature. The above silane is prepared by reacting betamercaptoethyl trimethoxysilane with phenylacetylene by heating first in the absence and then in the presence of azo-bis-isobutyronitrile as catalyst.
Patent GB-358854-A (GB)
Title: Improvements in and relating to sack holders
IPC: B65B67/12
Filed: 1931-03-13
Abstract: 358,854. Sackholders. BROWN, A., 172, Walworth Road, London. March 13, 1931, No. 7803. [Class 58.] A sack holder comprises a substantially U-shaped hollow casing 4 provided with bosses 5 each having a bore through which a vertical standard 6 passes. Locking screws 8 clamp the casing at the desired height. In each side arm of the casing a spindle 11 carrying sack-holding hooks 12 is mounted. The spindles are connected through cranks 13 and a link 14 and a spring 15 normally. holds them in such a position that the hooks project through apertures in the casing. The hooks are retracted to release a sack by turning the spindles against the tension of the spring 15 by a hand- or foot-lever 16, The holder may be fitted on a weighing apparatus, the lever 16 being automatically actuated when the sack contains a desired weight.
Patent GB-545512-A (GB)
Title: Improvements relating to stationery containers or envelopes
IPC: B65D27/06
Filed: 1941-06-20
Abstract: 545,512. Envelopes. MABEY, T. G. June 20, 1941, No. 7829. [Class 146 (ii)] An envelope, which can be used three or more times is made from a blank adapted to be folded upon the centre-line 2 and having, in addition to a closure flap 3 for the first use, two or more additional closure flaps 4, 6, 8, which are pregummed and lie within the envelope during its first use. The flaps 4, 6, 8 are successively pulled out through the slit which is formed when the envelope is opened along one edge, and are used one after another for subsequent sealing. The side flaps 5, 7 may be sealed down in the first use of the envelope, or they may be turned in like the flaps 4, 6, 8, and used for further transmissions. In that case, separate sealing-strips are applied over the side edges of the folded blank, to complete the first closure.
Patent GB-767646-A (GB)
Title: Improvements relating to the removal of fine or light particles from mixtures of particles
Inventor: MEEDOM HALVOR
IPC: B28C1/08
Filed: 1955-03-17
Abstract: 767,646. Pneumatic separating. SMIDTH & CO. AKTIESELSKAB, F. L. March 17. 1955, No. 7876/55. Class 117 Fine particles are removed from a mixture containing coarse particles by feeding the mixture downwardly through a cylindrical shaft 1 countercurrent an air stream fed at 2 and exhausted at 3. Partitions 4 with inclined holes 5 cause abrupt changes in the gas stream velocity and cause a whirling of the stream on passing through the holes. The gas is fed to a separator 9 in which the fine particles are precipitated, and the gas then flows to a dust filter 12. The gas may comprise a mixture of hot air and combustion gas fed from a furnace 14.
Patent GB-1451326-A (GB)
Title: Acoustic wave devices
IPC: H03H3/08
Filed: 1973-02-16
Abstract: 1451326 Acoustic wave devices; oscillators; active filters NATIONAL RESEARCH DEVELOPMENT CORP 21 Feb 1974 [16 Feb 1973] 7880/73 Headings H3F, H3V and H3W In a surface or bulk acoustic wave device for use with an amplifier 3 to form an oscillator, one of the transducers T 1 , T 2  has an "effective length" (which is defined in the Specification) which is sufficiently equal to the distance between the centres of the transducers so that the frequency responses of the transducers together suppress unwanted modes of oscillation and allow a single frequency mode only. In a first embodiment, Fig. 1, having a centre frequency W 0  an amplifier 3 supplied from a battery 6 has its output 5 and input 4 respectively connected to input and output interdigital transducers T 1 , T 2 . All modes except W 0  are arranged to coincide with a zero of the response of transducer T 1  by making the intertransducer distance L equal to the length N# 0  of T 1 . In a second embodiment, Fig. 4, the fingers of transducer T 1  are arranged in groups which are separated by a distance M# 0 , which is equal to the length of T 2 . Thus side-bands in the response of T<SP>1</SP> coincide with zeros in the response of T 2 . Modes of oscillation other than W 0  are prevented by making the inter-transducer distance P# 0  equal to N# 0 +M# 0 . Transducer T 1  may be modified by having unequal distances between the finger groups. For example the number of fingers may vary in a Gaussian distribution, or they may be arranged randomly but symmetrically about the transducer centre. In a third embodiment (Figs. 10, 11 not shown) quarter wave reflectors (22) in the form of straight conductors are arranged in the gaps between finger groups in both transducers T 1 , T 2 , and also at the ends of the transducers. When bulk waves are used absorbent material may be provided on the substrate surface or the transducers may be tuned inductively to the bulk wave frequency. The oscillator output may be tapped by further output transducers (T 3 , T 4 , Fig. 8 not shown) spaced along the wave path by a quarter of a wavelength. The oscillator may include a phase-shift network to provide a frequency-modulated source. Two devices 18, 19, Fig. 9 may be connected in parallel with an amplifier 3 to provide an active filter. The devices have respective centre frequencies 60MHz and 56 MHz.
Patent GB-286472-A (GB)
Title: Ferro-concrete shoring and lining in mines
IPC: E21D11/08
Filed: 1927-03-22
Abstract: 286,472. Minder, W. March 22, 1927. Tunnels.-In a shoring or lining unit for mine adits &c. comprising three arcuate ferro-concrete members forming a three-hinged arch, with cushioning material between their engaging ends, these ends are respectively bevelled and recessed so as each to present two mutually inclined plane surfaces, the cushioning material being placed in similarly inclined layers. The members may be rectangular, or they may have their outer edges bevelled, and they have steel sheaths. The cap joints may comprise soft wood &c. cushioning material 3, Fig. 3, and packing 5, with longitudinal steel &c. members 4 connecting adjacent units. The base joints may contain cushioning wood &c. 3 alone or together with softer packing wood 5 and bricks or tiles 9, Fig. 6, or bricks &c. 9 and sand &c. 8, Fig. 7; the wood &c. 3 may extend through several units or it may be omitted. Guides are provided to prevent outward movement of the side members 1. and the base members 2 diminish in cross section towards their middle.
Patent GB-194155-A (GB)
Title: Improvements in ladies' fans
IPC: A45B27/00
Filed: 1922-03-18
Abstract: 194,155. Studdy, G. E. March 18, 1922. Animals.-A lady's fan of the stiff or non- collapsable type is decorated with a representation of a living creature, mechanism or the like and provided with a movable limb, member, feature or the like designed to move to produce amusing effects as the fan is manipulated. Openings b, c, Fig. 2, are made in the fan and a card bearing representations of an eye and tongue is unsymmetrically pivoted behind these openings. The front of the fan bears the representation of a dog. The framework of the fan comprises diverging members e, cross-members f, g and members h slightly converging to grip a handle pushed between them. In a modification, a card l, Fig. 6, bearing eyes and tongue is mounted in the quadrangle e, f, g wibh limited sliding movement. In a further modification, the eyes are constituted by shoe buttons loosely mounted in slits in the fan.
Patent GB-259120-A (GB)
Title: Improvements relating to internal-combustion engines
IPC: F01L7/04
Filed: 1926-03-23
Abstract: 259,120. Trnka, J. March 23, 1926. Cylinders, cooting. - In order to equalize the cooling around the cylinder walls of an air-cooled engine on a moving vehicle or aircraft, the cylinder is fitted with an open-ended lining r rotated by gearing k, l. The lining may also act as a sleeve valve controlling inlet and exhaust.
Patent GB-1183676-A (GB)
Title: Load Pusher Apparatus Actuated by Coordinated, Simultaneously Operated Rams.
IPC: B66F9/14
Filed: 1968-02-19
Abstract: 1,183,676. Lift trucks. CASCADE CORP. 19 Feb., 1968 [20 Oct., 1967], No. 8041/68. Heading B8H. [Also in Division Fl] The upright pusher member 14 of a lift truck is displaced parallel to the truck frame 12 by a pair of double acting rams 38, 40 (Fig. 2) so connected that captive hydraulic fluid expelled from one side of one ram passed through a transfer conduit 106 to one side of the other ram whereby they move in unison. The rams 38, 40 are pivoted at 42, 52 to the frame 12 and their rods cause rotation of respective levers 50, 56 fixed to tubes 22, 27 carrying crossed levers 16a, 18a which act through pivoted arms 16b, 18b to cause displacement of the member 14. A changeover valve 102 directs fluid from a pump 110 to one or other of conduits 104, 108, the conduit not pressurized being connected to a reservoir 112. A filling valve 120 is provided. During normal operation valves 86, 64 in ram pistons 58, 80 remain closed, but in the event of expansion or contraction of the captive fluid they open to relieve or replenish the captive fluid.
Patent GB-552874-A (GB)
Title: Improvements in or relating to the distribution of surge voltages in the windings of electrical apparatus
IPC: H01F27/34
Filed: 1942-06-12
Abstract: 552,874. Transformers &c. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 12, 1942, No. 8083. Convention date, June 14, 1941. [Class 38 (ii)] To obtain a satisfactory distribution of surge voltages in transformer and like inductive windings, the capacity distribution of the winding is modified by dividing the winding into sections each comprising a number of disc coils the winding starting at that end of the first section which is remote from the end of the stack and continuing through the different disc coils of the section in turns of the same diameter and then back and forth in successive layers of different diameter. The order is reversed in successive sections as indicated by the turn numbering 1 ... 24.
Patent GB-675201-A (GB)
Title: Improvements in and relating to high pressure metal vapour lamps
IPC: H01J61/82
Filed: 1949-03-25
Abstract: 675,201. Metal-vapour lamps. BRITISH THOMSON-HOUSTON CO., Ltd. March 25, 1949 [March 27, 1948], No. 8198/49. Drawings to Specification. [Class 39 (i). The life of a high-pressure metal-vapour lamp of the type having a quartz discharge tube enclosed in an outer tubular vitreous envelope is prolonged by a suitable choice of glass for the outer envelope, and a suitable choice of dimensions for both envelopes, the latter chosen to give wall loadings within a specified range of watts per square centimetre. It is stated that deterioration is caused by the diffusion of hydrogen through the hot quartz into the discharge space, and that this unwanted hydrogen comes from the outer envelope. Accordingly, certain specified glasses are now used for the outer envelope to give better results than glasses previously used. The rate of diffusion of the hydrogen is further reduced by increasing the radiating area of both envelopes so as to lower the operating temperature. Exemplary dimensions are given for lamps of various ratings, and being designed to give a specific wall loading ranging from 1 to 1.5 watts per square centimetre for the outer vitreous envelope and from 8 to 13.2 watts per square centimetre for the inner quartz envelope. In the particular example described, the discharge atmosphere consists of mercury vapour at several atmospheres pressure in an unsaturated condition during operation, with argon at a few millimetres pressure. The space between the envelopes is filled with nitrogen at about half an atmosphere pressure. Specification 444,943, [Group XI], and U.S.A. Specifications 2,094,694, 2,135,690, 2,135,702, 2,177,685 and 2,247,176 are referred to.