baber/WOPTO huggingface dataset:
Patent GB-441438-A (GB)
Title: Improvements in or relating to piezo electric crystals
IPC: H03H9/19
Filed: 1935-04-10
Abstract: 441,438. Piezo - - electric crystals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Baldwin, C. F. ; 100, Manheim Avenue, Oaklyn, and Bokovoy, S. A. ; 705B, Woodlynne Avenue, West Collingwood, both in New Jersey, U.S.A.) April 10, 1935, No. 11159. Convention date, April 21, 1934. [Class 40 (v)] A piezo-electric section is cut so that its electrode faces are askew with respect to the X, Y and Z axes of the mother crystal. This gives it a fundamental frequency which is high relative to its thickness, and a predetermined temperature - coefficient independent of the relation between thickness and diameter. Fig. 3 shows in plan a crystal section a out along a line f f making an angle w with a mechanical axis, whilst Fig. 4 shows the angle v made by the same section with the optic axis z z. Fig. 5 shows in perspective the manner in which one section 13 is cut from the natural crystal, leaving the parts b, c unused. Fig. 10 shows how, by suitable selection of the two angles v, w, it is possible to cut a crystal oscillator having either a zero or a positive or negative temperature-coefficient.
Patent GB-1220994-A (GB)
Title: Band retainer for satellite separation system
Inventor: MEYER JAMES GROSS
IPC: B64G1/64
Filed: 1968-03-07
Abstract: 1,220,994. Artificial satellites. TRW Inc. 7 March, 1968, No. 11233/68. Heading B7W. [Also in Division F3] Interconnected satellites are secured together by a releasable clamp which is so mounted as to avoid damage to solar cells and other projections upon separation in orbit. Each satellite 6 has a planar top face 8 and a frusto-conical underface 10 respectively provided with upstanding and depending flanges 26, 16 each formed at its extremity with an annular lug 52, the lugs being clamped together by a clamp ring 56 enclosed within a split ring 62 having its ends connected by a remotely-controlled explosively operated releasable attachment device 70. Tension springs 130, 142 connect ring 62 to the inner face of a channel-section annular member 90 into which the ring is withdrawn by the springs when device 70 is released to enable the connected satellites to be forcibly separated by four compression springs 44 positioned between opposed central lower and upper faces 28, 18 of the satellites. The member 90 is formed with an inwardly extending flange 92 secured to face 8 of its respective satellite by three releasable attachment assemblies 108 formed with explosive bolts 122 fired remotely to enable member 90 and its associated parts to be released from the satellite at a selected time, after separation by spring loaded devices 124 that ensure that the member is thrown clear of solar panels or other projections on the satellite.
Patent GB-683833-A (GB)
Title: Improvements in torque-transmitting couplings
IPC: F16D3/221
Filed: 1950-05-06
Abstract: 683,833. Universal joints. BURTWELL, R. W. Feb. 7, 1951 [May 6, 1950], No. 11283/50. Class 80 (ii). Torque is transmitted between members 1 and 2, which are universally connected by a ball and socket joint'3, 5, by means of balls 8 carried in recesses 7 in the member 5 and engaging grooves 9 in a cylindrical sleeve 10 attached to the member 1. An annular layer 14 of synthetic rubber is disposed between the sleeve 10 and an outer sleeve 11 fixed to the member 1 thus providing a resilient drive. The grooves 9 form ribs, Fig. 2 (not shown), on the outer surface of the sleeve 10 which are disposed opposite longitudinal channels in the inner surface of the outer sleeve 11. A spring 6 maintains the ball 3 closely within the socket 5.
Patent GB-1092462-A (GB)
Title: Improvements in implements for biological, inoculation, extraction or collection
IPC: A61B5/15
Filed: 1963-03-21
Abstract: 1,092,462. Medical implements. G. C. JEENS-WILLIAMS. May 22, 1964 [March 21, 1963], No. 11286/63. Heading A5R. An implement for injecting, extracting, moculating or collecting bioligical fluids comprises a squeezable flexible container 16 into which is snap, push or screw fitted an adaptor 4 having nipple 8. Over adaptor 4 there may be fitted a cap 3 or needle assembly 12. The container 16 may be made of a resilient plastics material. The implement may be sterilised and supplied in a tearable plastics sachet or pack.
Patent GB-610944-A (GB)
Title: Improved apparatus for the remote regulation of pendulum clocks
IPC: G04C11/00
Filed: 1946-04-12
Abstract: 610,944. Clocks. LANDIS & GYR SOC. ANON. April 12, 1946, No. 11366. Convention date, April 25, 1945. [Class 139] Apparatus for the remote regulation of pendulum clocks is characterized in that a regulating weight enables the pendulum swing to be adjusted by being placed on or being removed from the pendulum, its position being controlled through a relay device in, dependence on a momentary closure of a pair of contacts on the clock, the closing of which contacts automatically taking place through transmission gear at equal time intervals, and also by a switch, actuated momentarily by or at the same time as a timesignal. The pendulum 2 is provided with a tray 4 which may receive a ball 5 which co-operates with an electromagnet 6 the coil of which is connected in series with a relay 8. The coil 16 of the relay 8 is connected in series with contacts 3, closed every 60 secs. by the clock mechanism, and with a key-switch 9. The coil 17 of the relay 8 is connected in series with a manually-operated key-switch 10 and with the key-switch 9. A connection switch 11 is provided in parallel with the contacts 3 and in series with the key-switch 9. In operation, about a minute before the reception (by telephone or radio) of a timesignal the operator closes the switch 9 and prepares to close the switch 10 at the precise " instant" of the time-signal. If the closing of the switch 10 coincides with a closure of the contacts 3 then the pendulum continues undisturbed, if, however, the closure of the contacts 3 is delayed the relay 8 is operated in such a manner as to break the circuit to the electromagnet 6 and the ball 5 is dropped into the tray 4 so increasing the rate of the pendulum. If at the next correction time signal the contacts 3 are closed before the switch 10 the relay 8 is actuated to cause the energization of the magnet 6 and the ball 5 is lifted from the tray 4 to decrease the rate of the pendulum. In another embodiment (not shown) an amplifier is used to control the closing of the switch 10 at the reception of a time-signal and the switch 9 is closed by the clockwork.
Patent GB-260639-A (GB)
Title: Improvements in the manufacture and production of stable iron carbonyl compositions
IPC: C01G49/16
Filed: 1925-05-02
Abstract: 260,639. Johnson, J. Y., (Badische Anilin & Soda Fabrik). May 2, 1925. Liquid fuels.-Iron carbonyl in solution in a liquid hydrocarbon or mixtures thereof is rendered stable to light by the addition of a colouring matter, an organic acid, ester or other organic oxygen-containing compound of high molecular weight capable of acting as a protective colloid, a solid hydrocarbon, or a liquid hydrocarbon boiling above 275‹ C. When these liquid hydrocarbons are used, the solvent should have a considerably lower boiling point. Suitable colouring matters are the iron compound of acetyl acetone, 1.4 di para toluido anthraquinone, or soluble azo dyes such as amino azo benzene combined with ethyl beta naphthylamine or typophor black or oil brown. Other examples of stabilizing substances mentioned are adeps lanµ, naphthenic acids, and caoutchouc or similar polymerized hydrocarbons. The stabilizing compound or compounds may be added to the liquid fuels containing iron carbonyl described in Specification 226,731 or to the more concentrated solutions of iron carbonyl described in Specification 260,640.
Patent GB-542502-A (GB)
Title: Improvements in or relating to photographic development processes
IPC: G03C5/30
Filed: 1940-07-10
Abstract: 542,502. 3-Pyrazolidones. KENDALL, J. D. July 10, 1940, No. 11465. [Class 2 (iii)] [Also in Group XX] A developing agent for reducible silver salt images is a 3-pyrazolidone of the general formula where R1, R2 and R3 are the same or different and are hydrogen atoms or hydrocarbon groups, such as alkyl, for example methyl; ethyl, propyl, or isopropyl; aryl, such as phenyl or naphthyl; aralkyl, for example benzyl; and aryl groups substituted with hydroxy, alkoxy, hydroxyalkyl, amino, substituted amino, nitro, sulphonic, or carboxylic groups, or halogen atoms. Specific developing agents are 3-pyrazolidone, 5-phenyl-3-pyrazolidone, 1-phenyl-3-pyrazolidone, 1-phenyl-5-methyl-3-pyrazolidone, 1-pchlorophenyl-3-pyrazolidone and I-p-tolyl-3- pyrazolidone. The compounds may be prepared where Rl is hydrogen by condensing hydrazine hydrate with α : #-olefine-carboxylic acid of the general formula R3-CH =CR2-COOH, and where Rl is a hydrocarbon group by condensing the corresponding hydrocarbon-substituted hydrazine with #-halogen-substituted fatty acid of the general formula R 3 -CHX-CHR 2 -COOH, X being halogen, such as chlorine, bromine, or iodine.
Patent GB-114702-A (GB)
IPC: G01B11/06
Abstract: 114,702. Reid Bros., and Brown. G. May 22, 1917. Indicating by optical means.- Gauges having a fixed anvil and a gravity moving head are provided with optical indicating-means. The head e slides freelv in the boss d of a bracket c which is adjustably mounted on uprights b by clamps and screws c<3>, c<4>, c<6>. The head is provided with a disk e<2> which is mounted thereon by screw adjustment f<1> and micrometer wheel g. When the head rests on the article A, the rim of the disk e<2> deflects a spring blade h carrying a mirror h<2>. By means of a lamp i and condenser k, carried by an arm j, light is doubly reflected from the mirror h<2> and a second mirror l, and is focussed on to a scale m mounted on a second arm.
Patent GB-1201907-A (GB)
Title: Improvements relating to reciprocating piston liquid supply means
Inventor: JAMES ALEC PATRICK
IPC: F04B7/02
Filed: 1967-03-10
Abstract: 1,201,907. Reciprocating pumps. JACO ENG. DEVELOPMENTS CO. Ltd. Nov.1 1967 [March 10, 1967], No.11473/67. Heading F1A. An air-pressure actuated pump has inlet and outlet valves 14, 13 respectively which are actuated in one direction by a beam 39 rocked either by an air motor 42 and a spring 49 or by two air motors. The pump piston 34 and the motor piston are returned by the pressure of incoming fluid from the tank 16. Alternatively the motor may be double acting. The speed of descent of the motor piston may be regulated by a throttle 55 and the stroke by a screw 37.
Patent GB-675143-A (GB)
Title: Acrylonitrile polymers
IPC: C08F220/44
Filed: 1950-05-09
Abstract: An acrylonitrile polymer, which has in its molecule acrylonitrile and vinyl amine groups, and may also have acrylamide or methacrylamide groups, may be prepared by treating an acrylonitrile polymer containing -CN and -CONH2 groups with an aqueous solution of an alkali metal hypohalite, preferably sodium hypochlorite, of from 3 to 6 per cent concentration, for from 5 seconds to 30 minutes, at a temperature between 65 DEG  and 35 DEG  C.  The treated polymer molecule preferably contains from 70 to 98 per cent acrylonitrile, from 1.9 to 15 per cent acrylamide or methacrylamide and from 0.1 to 5 per cent vinyl amine.  The amido groups in the original polymer may be introduced by copolymerizing acrylonitrile with acrylamide or methacrylamide, or by hydrolysing a portion of the -CN group in a polymer or copolymer of acrylonitrile to -CONH2 groups by treating with sulphuric acid.  The polymer may be converted into an oriented fibre before or after treatment with hypohalite, and the treated polymer dyed with an acid wool dyestuff by conventional wool-dyeing procedures.  In examples, solutions in dimethylformamide of copolymers of acrylonitrile and acrylamide or methacrylamide are spun through a spinneret into isopropanol and the yarn stretched, washed, and treated with sodium hypochlorite before or after drying.
Patent GB-397601-A (GB)
Title: Improvements in and relating to apparatus for removing the stoppers of bottles
IPC: B67B7/44
Filed: 1932-04-22
Abstract: 397,601. Bottle-openers. DEAN, A. H. and DEAN, F. A., 114, North Drive, St. Annes-on-Sea. April 22, 1932, No. 11533. [Class 125 (ii).] A combination bottle-opener comprises a cross arm 5 adapted to act as a handle, a corkscrew 3 mounted thereon, preferably detachable by reason of a bent shank 4 inserted in a hole, a metal cap removing device 9, comprising a straight edge 10, at one end of the handle and at the opposite end forked jaws 6, 7, preferably provided with teeth 8, to act as a key or spanner on the sides of a screw stopper.
Patent GB-353049-A (GB)
Title: Improvements in or relating to the control or comparison of electric currents
IPC: G01R13/20
Filed: 1930-04-11
Abstract: 353,049. Automatic regulation. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London. - (Western Electric Co., Inc. ; 195, Broadway, New York, U.S.A.) April 11, 1930, No. 11534. [Class 38 (iv).] The frequency or phase of a plurality of currents is controlled or compared by a cathode-ray tube, to the deflecting elements of which one of the currents is applied, and which has means therein adapted to be variably affected by the ray. The tube 1, Fig. 1, has the usual pairs 5, 6 of deflecting plates supplied with potentials which are 90‹ out of phase from a phase-splitting circuit 13, 14 connected across the secondary 12 of a transformer 10 whose primary 11 is fed with a fundamental frequency. The normal trace produced by the beam is a circle 60, Fig. 2, impinging on the points of a star-shaped electrode 7. The current whose frequency is to be controlled or compared with the standard is shown as being produced by an oscillating valve 51 and in the example shown has a frequency of five times that of the standard. This is superimposed on the cathode-anode circuit of the tube 1 through the transformer 66 and produces the trace 59, Fig. 2, which embraces the five-pointed electrode 7 without touching it at any point. Should the frequency or phase relationship of the two sources vary, the trace 59 rotates and the beam strikes the target 7 giving it a charge which is transferred to the grid of a valve 44. An alteration in plate current in this valve, and hence in the winding 47 of the transformer 48, varies the permeability of the core and hence the inductance of the winding 49 which is connected in the frequency-determining circuit 55, 56 of the oscillator 51, and brings the latter into the required relationship again with the low-frequency oscillations. If the winding 49 is short circuited and the winding 47 replaced by a frequency meter 63, Fig. 4, the latter will indicate the difference in frequency between the high frequency and the fifth harmonic of the low frequency, and the apparatus can, therefore, be used for frequency measurement if one of the frequencies is standard. One of the pairs of plates 5, 6 may be dispensed with, and a target of the form 61, Fig. 3, utilized, the trace of the beam being indicated at 62. Any sufficiently large decrease in the anode voltage or cathode energization will cause the beam to impinge on the target, an effect which may be utilized. The cathode excitation may be affected instead of the anode potential by the high-frequency control.
Patent GB-891265-A (GB)
Title: Method and apparatus for coating a web
IPC: B05D1/42
Filed: 1960-04-01
Abstract: 891,265. Coating webs; coated fabrics; gloss-coated paper &c. GENERAL FOODS CORPORATION April 1, 1960 [April 3, 1959], No. 11540/60. Classes 96 and 140. A method of applying a thermoplastic coating 10a to a web 10, e.g. of paper, comprises depositing small amounts of the coating material in closely spaced relation on the web while in a plastic condition whereby the deposits spread and merge into a continuous coating, bringing the coated portion into contact with a smooth surface 24 while the coating is still plastic, and setting the coating while it is in contact with the surface 24. A heated steel roller 11 having a multiplicity of shallow etched recesses 13a, 14a, Fig. 4, rotates in a trough 20 of coating material 19, e.g. molten wax, an upper heated rubber roll 12 pressing the coated web against a smooth hollow roll 24 which is cooled by circulating brine therethrough. Infra - red heaters located between the points 22, 23 may be provided to keep the coating melted until the roll 24 is contacted by the web. Air jets may assist in the cooling of the web on the roll 24, and rubber-surfaced roll 25 assists in peeling the coated web from the roll 24. Various modifications are mentioned. The roll 11 may have one recess-containing portion only, not extending all round the periphery, or more than two such portions, and the roll 24 may be replaced by an endless belt. An additional heated roll may be provided between the rolls 12 and 24, and both surfaces of the web may be coated by two apparatus of Fig. 1 arranged in series. The reverse side may be coated on its margins only, or on portions only of its margins. The roll 24 may be coated with a material which is smooth and has good release properties, e.g. vinyl acetate, copper or aluminium foil, or a silicone or other resin lacquer, or the roll 24 may be nickel- or chromium-plated or be of polished metal. Other web materials mentioned include regenerated cellulose, cellulose acetate, plastic, metal foil, e.g. aluminium or tin, paperboard and laminated paper, and coating materials mentioned include paraffin wax, microcrystalline wax, low molecular weight polythene or polypropylene, polyterpene, petroleum resins or mixtures thereof. Reference has been directed by the Comptroller to Specification 794,460.
Patent GB-920832-A (GB)
Title: Improvements in or relating to the removal of liquids from a solids-liquids mixture
Inventor: KNOWLES BRIAN GEOFFREY
IPC: B30B9/02
Filed: 1958-04-11
Abstract: 920,832. Compressing solids-liquids mixtures into briquettes. COAL INDUSTRY (PATENTS) Ltd. July 10, 1959 [April 11, 1958], No. 11563/58. Class 87(2). Liquid is removed from a mass of particles, e.g. coal particles, as they are compressed into briquettes in apparatus which comprises a plunger 11 to force the particles through a nozzle of increasing cross-sectional area, passages 12 in the nozzle (and/or the plunger) so that liquid can escape in one or more directions different from the direction of movement of the plunger and means for adjusting the nozzle to control the pressure in the mass. The moving part 15A of the adjustable nozzle is hinged to the fixed part 15 and is engaged by a piston 32 marking in a cylinder 25. When a cam 17 on the plunger 11 opens a valve 19, oil pressure in the space 16 above the plunger is transmitted to a control valve 22 similar to the control valve described in Specification 875, 441. The operation of the valve 22 is such that high pressure oil passes to the cylinder 25 if the pressure in the space 16 is too low and oil escapes from the cylinder 25 if the pressure in the space 16 is too high, so providing automatic adjustment of the nozzle whereby constant frictional resistance is applied to the moving mass of particles.
Patent GB-273053-A (GB)
Title: Improvements in or relating to automatic or semi-automatic weighing apparatus
IPC: G01G1/00
Filed: 1926-05-03
Abstract: 273,053. Avery, Ltd., W. & T., and Timson, W. May 3, 1926. Counter-scales and the like; pendulum-weight apparatus; casings.-In automatic or semi-automatic weighing apparatus the casing containing the indicating mechanism is secured directly to the base housing by means permitting rotation of the casing relative to the base housing about an axis coincident with the central vertical axis of the casing without involving any disturbance, of the indicating or weighing mechanism. The lower end of the casing 16 of the indicator is attached by screws 17 to an annular plate 18 encircling an annular guide 19 secured to the base housing 8. A pair of screws 21 passing through the base of the casing 16 engages flanged bushes working within curved guide slots 8<b> formed in the housing 8. After slackening the screws 21 the indicator casing may be rotated. The lever system within the housing 8 is connected to the usual pendulum mechanism 12 through a lever weight 9, lost motion link 10, an adjustable, swivel connection 24, 25, Fig. 5, and a flexible ribbon 11. The point of connection of the link 10 with the lever weight 9 is located in a vertical plane containing the fulcrum 12<b> of the pendulum and in the central vertical axis of the casing 16.
Patent GB-714842-A (GB)
Title: Improvements in or relating to electric discharge lamps and electrodes therefor
IPC: H01J61/073
Filed: 1951-05-17
Abstract: 714,842. Discharge lamps; electrode materials. GENERAL ELECTRIC CO., Ltd., and RIGDEN, S. A. R. Feb. 22, 1952 [May 17, 1951], No. 11593/51. Class 39(1) A high pressure constricted arc discharge lamp for operation on A.C. contains a pair of main electrodes at least one of which consists of a solid block of tungsten or molybdenum having its terminal surface formed with a plurality of intersecting slots recessed into the terminal surface, which slots are filled with a solid sintered mixture of the powders of two or more refractory materials, at least one of the materials constituting an activating material for the electrode. The mixture of refractory powders can be sintered in a reducing atmosphere to form a solid mass whilst contained within the slots and before mounting the electrodes in the lamp envelope. The activating material can be thoria and the material with which it is sintered may consist of tungsten and/or molybdenum, the weight of the thoria being substantially half of the total weight of the mixture. The mixture can be applied to the slots as a paste with distilled water with several applications. In the construction shown in Figs. 1 and 2 of the drawings accompanying the Provisional Specification the terminal surfaces 4, 5 of the tungsten rod electrodes 2, 3 of diameter 0.6 cm. contained in the spheroidal quartz bulb 1 are formed with a plurality of regularly spaced parallel slots 10, 11 intersected at rightangles by a further plurality of regularly spaced parallel slots, one set 12 of these further slots being shown in Fig. 2. Each slot is approximately 0.75 mm. deep and 0.375 mm. wide extending across the terminal surface of 'the electrode. The terminal surfaces of the electrodes are diametrically opposite and spaced approximately 15 mm. apart about the centre of the bulb which has a longer internal diameter of 61 mm. and a shorter internal diameter of 56 mm.
Patent GB-1262594-A (GB)
Title: Method of reducing the coercive force of permanent-magnetic material
IPC: H01F1/06
Filed: 1970-03-11
Abstract: 1,262,594. Magnetic compositions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 March, 1970 [14 March, 1969], No. 11666/70. Heading H1H. [Also in Division C1] Magnetic bodies are obtained by compacting, before, after or during magnetization, a powdered rare-earth-cobalt compound of the formula M 5 R where M=Co or a combination of Co with one or more of Fe, Ni and Cu and R is one, or more lanthanide, yttrium or thorium. The material is reduced in coercivity by application of a pressure of hydrogen gas until it contains at least 0À2 moles per mole of M 5 R before magnetization. ,In an example SmCo 5  is pulverized, orientated in a magnetic field, compressed without a binder to form a block and the block was subjected to a hydrogen pressure of 30 atmospheres, and magnetized.