baber/WOPTO huggingface dataset:
Patent GB-592449-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G1/00
Filed: 1945-02-20
Abstract: 592,449. Weighing-apparatus. VANDOME & HART, Ltd., ANDERSON, R. A., and TITFORD, R. J. Feb. 20, 1945, No. 4295. [Class 143] Weighing-apparatus of the type having a balance beam with unequal length arms, has the longer arm connected near its end by a tape or similar flexible member to the weight-indicating device, the movement of the latter being resisted by resilient means connected thereto by a tape or similar flexible member in such a manner that the resistance to movement of the indicating device is directly proportional to the extent of such movement. The resilient means may consist of a torsion strip anchored at its ends or a coiled spring anchored at one end and attached to a spindle at the other, said resilient means being connected to the second flexible member by means including a cam. A fan type scale has the usual pendulum compensator replaced by a steel strip 9 anchored at its ends in a plane perpendicular to that of the long arm 2 beneath the pointed 7 mounted on a spindle 11 to a cylindrical surface 12 of which a tape 13 is secured. The end 13a of this tape is secured to the beam arm 2 through a shackle 13b. Two strips 15, 15a connected by a shackle 16 are connected respectively to a cylindrical surface 14 on spindle 11, and to a cam element 17, Fig. 3, mounted eccentrically by a pin 19 upon the limb 20 of an L- bracket secured to the centre of torsion strip 9. Flexing of the strip 9 causes movement of the surface 17a of the cam relative to strip 15a so as to increase the leverage in direct proportion to the increase in tension of the strip 9. The chart 6 can therefore be equally graduated. Adjustment of the cam 17 is effected by screw 23. The modification, Fig. 5, has a coil spring 28 secured at its ends to a cam 17 and a fixed peg 29 respectively.
Patent GB-251712-A (GB)
Title: Improvements in or relating to radiators for motor cars and the like
IPC: F01P11/18
Filed: 1925-02-17
Abstract: 251,712. Mond, A. L. Feb. 17,1925. Indicators actuated by pressure of head of liquid.-The level of the liquid cooling medium in the radiator of an internal combustion engine is measured by the displacement of part of the gaseous fluid in the radiator, means being provided for compensating for the influence of the temperature of the cooling medium. The radiator cap 2 is provided with a bore 3 through which passes a tube 4 extending upwards into a sealed air vessel 5. An open-ended tube 6 dips into a coloured liquid 7 in the vessel 5. Variations in liquid level in the radiator are transmitted as pressure variations to the air in the vessel 5 and are indicated by the liquid in the tube 6. The indicator is mounted in a socket 8 secured in the cap 2 by a nut 9 and provided with a pin 10 which engages in a bayonet slot 12 of the member 11 which carries the indicator. An annular frame 18 is supported on two pillars 14, 15 and carries the vessel 5. The indicating tube 6 is supported in a stuffing box 19 and washer 21. Glass or other windows 26 are carried by the frame 18, and are perforated to allow cooling air to enter. The pipe 4 is coiled as indicated to provide a cooling surface for the air within, and thus neutralize any heating effect due to the hot liquid in the radiator. In addition to the level indication in the tube 6, the top of this tube may be closed by the finger in the manner of a pipette, and the apparatus withdrawn so that the level of liquid in the tube 4 may be inspected. If the indicator is not mounted on the radiator but used in an inclined position, the pipe 4 may have an enlargement to prevent the entry of the coloured liquid. To prevent the formation of air bubbles in the pipe 6, it may be made upwardly divergent, or baffles may be provided below the lower end of the pipe. Provision may be made for a thermometer 35 to be carried in the radiator cap. In an alternative construction. the manometer tube 6 may be replaced by an indicator of the aneroid type, and in another construction by an evacuated Bourdon tube which is subjected to fluctuations of pressure within the casing. The cooling coil of the pipe 4 may be replaced by a thin metal box, or by a small radiator.
Patent GB-629349-A (GB)
Title: Improvements in or relating to thermionic valve oscillator circuits
IPC: H03B5/10
Filed: 1947-02-15
Abstract: 629,349. Valve generating circuits. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and CAMPBELL, C. F. Feb. 15, 1947, No. 4446. [Class 40 (vi)] An oscillator has a metal filament lamp inductively coupled with a plurality of impedances in the feed-back path in such a manner that the output level is maintained substantially constant. The Figure shows an oscillator having its frequency determined by the tuned circuit IC, QD, QE, QC and a feed-back path from anode to control grid via the primary winding of transformer TRA, resistors YG, YH and the iron-cored inductor IC, which acts as an auto-transformer. The metal filament lamp LPB reflects a resistive impedance into the primary winding of transformer TRA so that if, for example, due to a change in supply voltage, the voltage across the winding tends to change the resistive impedance changes in the same direction thus varying the feed-back voltage in such a direction that the output voltage is maintained constant. The circuit is further stabilized by negative feed-back over the resistors YD, YE, and the frequency stability is maintained high in spite of the use of the ironcored inductor IC, as changes in frequency with supply voltage due to changes in the oscillatory current in the indicator current are minimized by the lamp LPB. Changes of frequency with temperature are reduced by forming the capacitors QC. QD. QE partly of silvered mica capacitors having a positive temperature coefficient and partly of ceramic capacitors having negative temperature coefficients. The pre-set resistors YG, YH are given a positive temperature coefficient to compensate for the effects of temperature changes in other components of the circuit, by winding them partly with Eureka and partly with iron wire. The output voltage is derived from tappings on the secondary winding of transformer TRB. Relay RA operates alarm signals on failure of the power supply.
Patent GB-502635-A (GB)
Title: Improvements in or relating to cylinders or beaters for cleaning and opening cotton and such like
IPC: D01G9/20
Filed: 1938-02-14
Abstract: 502,635. Opening cotton &c. PLATT BROS. & CO., Ltd., and ADDISON, J. S. Feb. 14,1938, No. 4499. [Class 120 (i)] An encased cylinder or beater for cleaning and opening cotton &c. comprises rings or discs b, Fig. 4, mounted on a shaft a and having machined seatings b<1> in which built-up lag structures are supported and secured by bolts f, Figs. 5 and 6, each lag consisting of a longitudinal block c machined at intervals laterally to receive shaped strikers or blades d, which are secured on the block c by angle plates e, Fig. 11, shields g, Fig. 1, being fitted between the lags and covers h provided at the ends.
Patent GB-1138273-A (GB)
Title: Improvements in or relating to electronic clocks
IPC: H01J17/49
Filed: 1967-01-30
Abstract: 1,138,273. Electric Mocks. GENERAL TIME CORP. Jan. 30,1967 [Feb. 1, 1966], No. 4515/67. Heading G3T. [Also in Division Hi] An electronic clock comprises a glow discharge tube having at least two series of cathodes 2 8/ 2 , 28m formed on a substrate 8 and viewed through a light-transmitting member 36, the cathodes of each series being inter-connected to form two or more groups with successive cathodes of each group separated by at least one cathode from the or each other group, and electronic control circuits for transferring a glow discharge directly between successive cathodes in each series, the discharge being maintained at each cathode until transferred. Each cathode is thus a "position" cathode, and intermediate "guide" or "transfer" electrodes as described in Specification 987, 231 are not required. The tube envelope, formed by sealing a glass plate 36 to a stainless steel ring 42 which is silversoldered to an aluminium or stainless steel cylinder 38 having a bottom 39 which is more flexible than the glass plate 36, is evacuated through an aperture 44 until the bottom 39 flexes inwardly and supports the glass plate 36 through spacers 46. A filling of argon at a pressure of 40 to 50 mm. Hg is then introduced. An anode of conductive meshes, sufficiently fine to be almost invisible, is printed on the back surface 4 of glass plate 36. Glow cathodes 28f equal in number to the supply frequency are printed on a board 6. Sixty "second" cathodes 28s, sixty "minute" cathodes28w, and forty-eight "hour" cathodes 28h are printed on a board 8. A one-way window 30 comprising a linear polarizer 52 and a quarter-wave plate 54 ensures that only glowing cathodes can be seen. The cathodes are connected internatively into a three-phase circuit by connections printed on the backs of boards 6 and 8 and connected by springs Figs. 12 and 13 (not shown), to a printed circuit board 7 covered by an asbestos insulator 60. Terminal pins Figs. 11 and 14 to 17 (not shown), extend through the bottom 39 to a board 34 on the back of which control circuit elements are mounted. The control circuit Fig. 19 (not shown), comprises four three-phase ring counters supplying pulses to the associated glow cathode. The first three counters also supply input pulses through an amplifier to the succeeding counter. The "hour" cathodes are switched each fifteen minutes. A switch on the front of the clock enables line frequency pulses to be applied to the minutes and seconds counters when setting the time. The power supply Fig. 18 (not shown), comprises a voltage tripler supplying 400V to the anodes and a further rectifier supplying 100V to a synchronizing circuit and 40V to the inter-stage pulse amplifiers, and a pulse generator supplying positive pulses at line frequency to the first ring counter.
Patent GB-1254244-A (GB)
Title: Fluidically controlled, electrically operated unloader valve control system
IPC: F04B49/00
Filed: 1970-01-30
Abstract: 1,254,244. Fluid logic and switching circuits; reciprocating pumps and compressors. WORTHINGTON CORP. Jan. 30, 1970 [Feb. 25, 1969], No. 4583/70. Headings F1A, F1N and F1P. Each of a plurality of electric switches 18a, 18b, 18c serving to control solenoid operated unloading valves of a multi-cylinder reciprocating pump or compressor in response to discharge pressure, flow-rate, oil pressure or receiver pressure acting on a solenoid-operating switch 108, are held open by fluid-pressure in the preferred output lines 56a, 56b, 56c of bi-stable fluidic  switches 16a, 16b, 16c, and are closed by fluidpressure in output lines 58a, 58b, 58c of said fluidic switches which have constant pressure power input lines 50a, 50b, 50c connected to a common line 72, 74 and have first control input lines 52a, 52b, 52c branching from a first main line 82 and terminating in normally vented nozzles 34a, 34b, 34c in a block 32, and second control input lines 54a, 54b, 54c branching from a second main line 86 and terminating in normally vented nozzles 36a, 36b, 36c in block 32. The nozzles are sequentially blocked by rotating cams 42, 44 driven by the pump shaft 40 and the main lines 82, 86 are connected at 24, 26 to a solenoid valve 12 which connects the constant pressure line 72, 74 to line 82 whilst venting line 86 at 27 or connects line 72, 74 to 86 whilst venting 82 at 25 according to whether switch 108 is open or closed. Electric switches 18a, 186, 18c when sequentially closed energize solenoids 20a, 20b, 20c which in turn sequentially close loading valves (not shown) of compressor or pump 38. In operation and with valve 12 in position shown and with cam 42 leading cam 44 and both rotating anti-clockwise, closure of nozzle 36c by cam 42 produces no control input in line 54c because main line 86 is vented at 27. Subsequent closure of nozzle 34c by cam 44 generates pressure in control input line 52c but this merely confirms the preferred output in line 56c. Similar considerations apply to elements 16b, 16a on subsequent blocking of nozzles 36b, 34b and 36a, 34a. On valve 12 being switched by solenoid 30 to its other position so as to pressurize line 86 and vent line 82, blocking of say nozzle 36c by cam 42 results in a signal in control input line 54c of element 16c and switching of the supply input at 50c to line 58c whilst venting line 56c at 60c and closure of electric switch 18c. Subsequent blocking of nozzle 34c by cam 44 produces no signal in control input line 52c since main line 82 is vented at 25. Elements 16b, 16a are similarly switched and electric switches 18b, 18a closed when nozzles 36b, 36a are blocked by cam 42.
Patent GB-866069-A (GB)
Title: Improvements relating to the manufacture of plastics
Inventor: CHARLESBY ARTHUR
IPC: C08F291/18
Filed: 1956-02-14
Abstract: A polymer is subjected to the action of ionizing radiation while in the presence of a polyfunctional monomer containing at least two potentially reactive carbon-to-carbon double bonds, one pair of carbon atoms joined by double bonds being separated from the next pair of such carbon atoms by at least one carbon atom. The polymer may be polyethylene, polyvinyl chloride, polymethyl methacrylate, cellulose acetate or polyacrylonitrile, and the polyfunctional monomer may be diallyl phthalate, ethylene dimethacrylate or divinyl benzene.  The polymer may be mechanically mixed with the monomer or may be immersed in liquid monomer or in monomer solution for a time sufficient to imbibe the monomer.  The process may be carried out in the presence of a second monomer which may or may not be polyfunctional such as vinylidene chloride or lauryl methacrylate.
Patent GB-658873-A (GB)
Title: Collapsible stands
IPC: F16M11/24
Filed: 1949-02-21
Abstract: 658,873. Collapsable stands. WHILTON, R. B. Feb. 21, 1949, No. 4606. [Class 52 (iii)] A collapsable stand comprises four legs 10 having feet 19 and each entering a socket 17 in a top 18, each pair being joined by a pair of crossed stays 11 each of which is pivoted to a slider 15 at one end and to a fixed lug 13 at the other end, each pair of stays 11 being pivoted at a point 12 above their centres so that the legs splay out on opening. Stops 16 are provided on the legs 10 to limit the opening. Telescopic screw-set legs may be fitted. The stand may alternatively have three legs only,
Patent GB-539522-A (GB)
Title: Apparatus for the spray treatment of biscuits and like articles
IPC: A21C15/00
Filed: 1940-03-12
Abstract: 539,522. Coating bakers' goods. GIBBS, S. T., and BAKER PERKINS, Ltd. March 12, 1940, No 4633. [Class 28 (i)] [Also in Group III] Two rotary brushes 11, 12 spray oil on biscuits carried between them by an openwork wire conveyer band 5. The oil is pumped from a reservoir 24 to troughs 14, and falls in streams over heightadjustable double-sawtoothed (17, 18) weir plates 15 on to the brushes. The brushes may be replaced by spaced discs having serrated peripheries or by cylindrical members having pins secured therein. The brushes may be formed on a perforated core, the trough and weir being mounted within the core. The bristles of the brushes may touch the lower edges 18 of the weir plates. The weir plates may be fixed and the troughs adjustable. The upper brush and trough are enclosed in a hood 26 having oil-collecting perforated gutters 27 from which the oil drops into a drip tray 23 delivering by pipe 25 into the reservoir 24. The hood has an air-vent 41 with baffles 42 which trap oil escaping with the air. The supply of oil to the troughs is controlled by valves 36, 37, surplus oil being returned to the reservoir by a byepass 38.
Patent GB-624672-A (GB)
Title: Improvements in or relating to lifting tackle
IPC: B66C1/12
Filed: 1947-02-18
Abstract: 624,672. Slings; engaging, lifting, and lowering loads. VARNEY, E. R. Feb. 18, 1947, No. 4654. [Classes 78 (ii) and 78 (iv)] A hanger for lifting tackle adapted to be suspended from a hook or other lifting means is provided with a plurality of notches each adapted to receive a link of one of a number of chain lengths by which a load is slung from opposite sides of the point of suspension of the hanger whereby any chain length may be readily lengthened or shortened so that the load may be lifted in any required position. In the embodiment shown, the hanger is'in the form of a beam 10 and supports four chains 18 for lifting a motor vehicle engine 25, each of the chains having a hook engaging an eye nut 24 screwed on to a cylinder head stud of the engine. Notches 11 are formed in the flanges of the beam, these flanges being reinforced by a welded block 13 which is drilled to receive the stem 14 of an eye bolt 15 adapted to engage a crane hook 26. Each notch I I is just wide enough to pass a chain link 17, the adjacent link 19 being trapped against the inside of the beam when a load is applied to the chain. Fig. 5 shows a modification in which the eye bolt is replaced by a bridge 27 welded to the flanges of the beam.
Patent GB-1027573-A (GB)
Title: Unsaturated bicyclic ketones and the preparation thereof
IPC: C07C45/62
Filed: 1963-02-06
Abstract: The invention comprises compounds of formulae (I), (II) and (IV), wherein one of the 3-Me groups may be alternatively H or C2- 4 alkyl. Compounds (I) and (II) are prepared by cyclizing Me2C = CHCH2CH2CHMe = CHCH2CMeR.CN (R being H or C1- 4 alkyl) with conc. H2SO4, polyphosphoric acid or equivalent strong acid and may be converted to (III) and (IV) by reduction, while (IV) --> (III) is effected by oxidation. <FORM:1027573/C2/1> The initial reaction appears to proceed by formation of the ketimines corresponding to (I) and (II), followed by hydrolysis.
Patent GB-1039433-A (GB)
Title: Steam pressure reducing valve
IPC: G05D16/10
Filed: 1965-02-04
Abstract: A pressure reducing valve for superheated steam comprises an inlet 1, not shown, and an outlet 15, a valve number 4 movable axially to vary the cross-section of the inlet 1, and a chamber 3 situated down stream of the member 4 and having a cross-section which increases in the direction of flow, an end face 5 to provide an abrupt reduction of the cross-section of the chamber 3 to cause the creation of a pressure wave front 7 in the flow through the chamber, and outlet ducts 8 for the injection of cooling water into the flow immediately upstream of the end face 5.  The ducts 8 are formed in a spindle of the valve member 4 and are supplied with cooling water through an inlet 9 and passage-way 10 surrounding the spindle.  A chamber 11 is formed downstream of the front 7 and has guide vanes 13 disposed in it.  Movement of the member 4 is controlled by a piston 18 connected the valve spindle and defines with the cylinder 17, two chambers 19 and 20.  Chamber 19 is connected with the cooling water passageway 10, the flow of which is controlled by a valve 23 in response to the temperature of the stream in the outlet 15.  Chamber 20 is connected to a line branched off the cooling water inlet and a valve 21 varies the amount of water exhausted from the branch line in response to steam pressure in the outlet 15.
Patent GB-1178965-A (GB)
Title: Improvements relating to fluid pressure intensifiers and fluid systems embodying such intensifiers
Inventor: ORLOFF GEORGE
IPC: F01B1/06
Filed: 1967-02-03
Abstract: 1,178,965. Hydraulic intensifiers. MOLINS MACHINE CO. Ltd. Feb.1, 1967 [Feb.3, 1966], No.4844/66. Heading F1P. A hydraulic intensifier comprises a set of radial cylinders 22 Fig.1 having free pistons 5 arranged in two banks and formed in a rotor 3 surrounded by an eccentric sleeve 25 and surrounding a pintle 2 provided with inlet and outlet bores 17, 20 and the rotor 3 is driven by a hydraulic motor which also comprises a set of radial cylinders 13, free pistons 4 and a rotor which is co-axial with and fixed to the pump rotor and is surrounded by an eccentric sleeve 14 and surrounds an axial extension of the pintle 2 with inlet and outlet bores 8, 11. The speed of the motor may be varied by adjusting the eccentricity of the sleeve 14 about a pin 28 Fig. 3 either by pushing a block 29 against a spring 31 by means of a piston 32 subjected to pump delivery or by manual screw adjustment of the block 29. In a modification the motor and pump sleeves comprises a cylindrical track 28, 29 Fig. 5 supported by needle bearings 30, 31. The pump pistons 32 are cylindrical and the inlet bores of the pintle are in open communication with each other. The motor HIM Fig. 7 of any intensifier HI is supplied with low-pressure fluid from a source S through a line L and a control valve CV and the pump HIP which is also supplied from line L feeds a high-pressure transducer HPT. The speed of motor HIM is controlled by pump delivery bled through a line CL. The low-pressure supply line L also supplies low-pressure transducers LPT1, LPT2, LPT3 through control valves V.
Patent GB-646590-A (GB)
Title: Improvements in mowing machines
IPC: A01D34/30
Filed: 1948-02-18
Abstract: 646,590. Belt gearing. BAMFORD, C. J., and BAMFORD, H. V. Feb. 18, 1948, No. 4846. [Class 80(i)] [Also in Group I] In a mowing machine (see Group I), two shafts are connected by belt anc pulley or chain anc sprocket drive and mean: are provided for altering the position of the driving surface of one sprocket or pulley in relation to thai of the other. As shown, the shaft 26 carrying a pulley 25 is mounted in a bearing 27 contained in a housing 28, the exterior surfaces 29 of which are eccentric to the shaft 26, the housing 28 being supported in a bracket 30 having a clamping cap 31 to allow adjustment of the angular position of the housing 28. In a modification a pulley has a V- section groove and is made in two separate parts with the division parallel to the plane of rotation the pulley having spring- loaded means tending to keep the two parts of the pulley in the closed position so that the tension of the belt is automatically maintained.
Patent GB-537840-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D23/06
Filed: 1939-07-10
Abstract: 537,840. Clutches. AKTIEBOLAGET LJUNGSTSTROMS ANGTURBIN. July 10, 1939, No. 4942/41. Convention date, July 8, 1938. Divided out of 537.811. Drawings to Specification. [Class 80 (ii)] The Specification describes a power transmission device which is also described in connection with Specification 537,811, but the claims in the present application are limited to the construction of the clutch device. Specification 381,368 also is referred to.
Patent GB-1502693-A (GB)
Title: Sealing of electro-chemical devices utilising liquid sodium and a solid ceramic electrolyte permeable to sodium ion
IPC: H01M10/39
Filed: 1976-02-09
Abstract: 1502693 Na-S cell; Nb protective seal CHLORIDE SILENT POWER Ltd 7 Feb 1977 [9 Feb 1976] 05030/76 Heading H1B An Na-S cell (Fig. 1) has a protective layer or film of Nb, 15, secured to an outer metal tubular housing 14 composed of, for example, Ni-Fe alloys, to protect the bond between the housing and a sodium resistant glass seal, 13, from degradation by Na vapour in anodic compartment 18. In Fig. 1, 10 is the upper part of a beta-Al 2 O 3  tube, secured at its top end to an alpha-Al 2 O 3  flange 11 by a glass seal 12. Alternatively, Fig. 3, the alpha-Al 2 O 3  flange may be dispensed with, the seal being effected by glass 23 bonding 10 to a nickel-iron ring 24 which in turn is welded at 25 to a cylindrical steel casing 14; the ring is plated with Nb at 26 where the glass-metal interface is exposed to Na vapour. The Nb film may be electroplated or vapour deposited on the base metal member; the coating being preferably from 10 to 200 Ám.