baber/WOPTO huggingface dataset:
Patent GB-992769-A (GB)
Title: Gyromagnetic resonance spectroscopy
IPC: G01R33/60
Filed: 1963-03-26
Abstract: 992, 769. Gyromagnetic resonance apparatus. VARIAN ASSOCIATES. March 26,1963 [April 2, 1962], No. 11960/63. Heading G1N. In a gyromagnetic resonance spectrometer having two samples 1, 2 in a common polarizing field means are provided for modulating the polarizing fields of the samples at different frequencies and the resultant changes in the impedance of the resonant cavity containing the samples is detected by a means of a crystal detector 14 in a microwave bridge. The resultant outputs are amplified and supplied to a two pen recorder in conventional manner. A D.C. bias may be applied to the polarizing coil one of the samples, for example to superimpose the zeros of the resultant traces and thus make comparison of the traces independant of recorder linearity. The resonant structure shown in Fig. 3 is a modification of that of Specification 966,918 the samples being in tubes 30 positioned between two coils 10, 11 the two samples being shielded from the modulating field of the adjacent sample. A microwave tuning stub 29 is positioned adjacent a circular iris 28. The modulation energy is connected to the structure through coaxial connectors 32. Window 36 allows the one sample to be subjected to radiation and the effect of temperature on one sample may also be observed. The apparatus may be used to compare the relative concentration of gyromagnetic particles in the samples either by direct comparison of the two traces or electrical comparison of the amplifier outputs. The source of microwave energy may be a reflex klystron oscillator. The cavity is preferably arranged to resonate in a TE 104  mode with the samples at antinodes of the magnetic field. The cavity may be internally silver plated to reduce eddy current losses without affecting cavity a. It is stated that one sample may be of a sample continuously flowing through the apparatus which is compared with the other.
Patent GB-1186850-A (GB)
Title: Thyristor Triggering Circuits
Inventor: ASH BERNARD EDWIN
IPC: G05F1/455
Filed: 1969-03-07
Abstract: 1,186,850. Switching systems for consuming devices. STANDARD TELEPHONES & CABLES Ltd. 7 March, 1968, No. 12219/69. Heading H2H. In a system wherein a thyristor T1 is triggered by way of a pair of transistors TR1, TR2 when the voltage across a capacitor C reaches a predetermined value, the operation of the thyristor, when fed from an unsmoothed rectified A.C. supply, is enhanced by a circuit which includes a diode D connected between the capacitor and the junction of the thyristor T1 and the load and by charging the capacitor C from a source E of constant current together with supplying the transistors TR1, TR2 from a source F of continuous voltage. Thus, during the period when the thyristor is in its triggered state, the capacitor is held discharged so that spurious firing of the thyristor is prevented.
Patent GB-675815-A (GB)
Title: Apparatus for accumulating and automatically removing paint sludge from a liquid carrier
IPC: B01D29/01
Filed: 1950-05-16
Abstract: 675,815. Lever load-handling machines. MAHON CO., R. C. May 16, 1950. [Sept. 10, 1949] No. 12220/50. Class 78 (iii). [Also in Group 1] The apparatus comprises a vessel for receiving a carrier liquid with material such as paint sludge floating upon it, a bucket having a perforated bottom and pivoted for movement between a first position in which it is disposed in the vessel so that liquid and material flowing into the vessel may flow into the bucket and a second position in which the bucket discharges its contents clear of the carrier liquid, and means for automatically moving the bucket in a predetermined desired cycle. Paint sludge and carrier liquid are received in a reservoir portion 24, Fig. 3, of a tank 10 and flow over a weir 22 into a portion 26 in which is disposed a bucket 16 into the open end 16a of which the mixture flows. A flow of carrier liquid through the perforated bottom 34 of the bucket is induced by an outlet box 44 of small cross section connected to an outlet pipe 46, the sludge thus collecting nearer the wall 32 in the bucket 16. At intervals depending on the inflow rate and for which a timing mechanism 50. Fig. 1, can be pre-set the bucket is tipped by a rod 48a actuated by a pneumatic cylinder 48 and connected to the bucket 16 through a counterweight arm 64 and a pivot rod 36 secured between extensions of the bucket sides. The air flow to the cylinder 48 is controlled by valves 52, 54, 56. Limit switches 60, 62 operated by the arm 64 are also connected to the valves. On reaching the tipped position shown in Fig. 1, the arm 64 is stopped abruptly by a heavilyspring-loaded stop 72 so that sludge, including that adhering to the inside, falls from the bucket 16 down a chute 18 into a drum 76. A rest 42, Fig. 3, supports the bucket 16 in the position shown in that Figure.
Patent GB-666312-A (GB)
Title: Methods of preparing alkyl acyloxy acrylates and derivatives thereof
IPC: C07C69/54
Filed: 1947-05-07
Abstract: Alkyl b -acyloxyacrylates are prepared by reacting metallo derivatives of alkyl b -hydroxyacrylates with a lower aliphatic carboxylic acid halide in dialkyl ether solution, and directly neutralizing the reaction mixture to about pH7.  Preferably, sodio-derivatives are used in ether at ca. 35 DEG  C.; the acid may be e.g. butyryl chloride or propionyl bromide.  The neutralization may be performed with e.g. an aqueous solution of a bicarbonate. The metallo derivatives of the b -hydroxyacrylates may be prepared by reacting an alkyl, e.g. ethyl, acetate with an alkyl, e.g. ethyl, formate and an alkali metal, e.g. sodium, in ether.  The alkyl b -acyloxyacrylates may be treated with halogen, e.g. chlorine or bromine, in an alkanol R2OH, to give an alkyl a -halo-b  : b -dialkoxypropionate of formula <FORM:0666312/IV (b)/1> In the example, ethyl formate, ethyl acetate, and sodium sand in xylene are heated to give the sodio derivative of ethyl b -hydroxyacrylate, which is treated with acetyl chloride to give ethyl b -acetoxyacrylate, further treatment of which with chlorine in ethanol gives ethyl a -chloro-b  : b -diethoxypropionate. p  Specification 531,968 is referred to.  The Specification as open to inspection under Sect. 91 comprises the statement that the alkyl a -halo-b  : b -dialkoxypropionates may be hydrolysed to the free acid, treated with ammonia to give a -amino-b  : b -dialkoxypropionic acid, which is treated with a phenacyl halide to give a -phenacetamido-b  : b -dialkoxypropionic acid, which may then be esterified.  This subject-matter does not appear in the Specification as accepted.
Patent GB-684462-A (GB)
Title: An improved method of and apparatus for measuring mechanical forces
Filed: 1951-05-25
Abstract: 684,462. Electric indicating systems. LE GALL, A. C. G., PAULIN, P. G. and ORGANIZATION & SECURITE DU TRAVAIL, O.S.T. May 25, 1951 [May 31, 1950], No. 12371/51. Class 40 (i). Apparatus for producing an A.C. signal proportional to a mechanical force consists of a bar of magnetic material 1, Fig. 1, subjected to compressional, torsional or flexural distortion by the force, a primary winding 3 and a secondary winding 7 spaced therefrom and situated at the point where losses of the magnetic flux created by the primary winding reverse in sign. In Fig. 4, the rate of decrease of flux dF/dX is plotted against distance along the bar, the primary being at AB. An unstressed bar gives the curve B C0, and a stress produces the curve B C1. The point D where the curves intersect is stated to be independent of the stress, and the secondary is positioned at the point E. The distortions produce changes in permeability which result in the desired A.C. in the secondary 7. An unstressed, bar 2 can be used to provide an opposing signal, so that meter 9 registers the variation only. The opposing signal from the secondary 8 may have its phase changed by 10, 11 to produce a desired zero in meter 9. In a modification, the bar 40 Fig. 5 may have two spaced primary windings 43, 44 and a secondary winding 45 located between them, an opposing balancing signal being derived from the A.C. supply 46 to adjust the zero reading of the meter 50. Measuring liquid flow. The liquid flow 12, Fig. 2, deflects a vane 13 pivoted at 15 to produce flexural distortion of the bar 23. A magnetic shunt 28 may be provided between the primary and secondary windings 26, 27. Measuring pressure and liauid level. The pressure 30, Fig. 3, compresses bar 36. If the pressure is derived from a fluid reservoir, its variation is an indication of 'variation of liquid level. Measuring quantity of heat. If the apparatus for measuring flow feeds one winding of an energy meter, and the other winding is fed from a resistance thermometer, the meter registers calories.
Patent GB-109267-A (GB)
Title: Apparatus for Drying Material in Bulk.
Inventor: HOFMANN ALFRED
IPC: F26B17/08
Filed: 1917-08-29
Abstract: 109,267. Hofmann, A. Aug. 23, 1916, [Convention date]. Endless - band conv e y e r s , materials carried on.-Relates to apparatus of the type in which the material passes repeatedly backwards and forwards from above to below in a drying-chamber, and consists in an arrangement by which heated gases, after use for heating inflowing air, are directed on to the material at certain places. Figs. 1 and 2 show longitudinal and transverse sections of the chamber, the central part of the former being taken on a plane in front of the side parts. Heated air admitted at 13 passes into the upper part of a chamber 11 and thence through pipes 9 to a chamber 12, from which it returns by pipes 10 to the lower part of the chamber 11 and is forced by a fan 15 into the vertical flue 16. The pipes 9, 10 heat the material by radiation, and also heat air entering by openings 8 and passing upwards as indicated by arrows. Perforated plates 4, 6 disposed above the heating-pipes direct the air and also serve to collect material falling from the conveyers. The hot gases may be admittÚd to any part of the drying-chamber by opening the flap valves 28, or to the chamber 2 in which the heating-pipes are placed, by opening the valve 27. A valve 30 is fitted to the flue 16 and is opened when the valves 27, 28 are closed and when starting the apparatus. Inspection openings 31 provided with doors are fitted at both ends of the chamber.
Patent GB-125105-A (GB)
IPC: B62D55/02
Abstract: 125,105. Foster & Co., W., and Tritton, Sir W. A. May 18, 1916. Endless-track vehicles.-The tracks are carried by sprocket-wheels f, g, Fig. 1, mounted on a centrally pivoted frame b, and the track rollers l on a spring-mounted auxiliary frame k. Buffers o may be provided for the frame b, and the orifice for the bearing-pin c may be elongated to permit vertical movement. The track is driven by a sprocket y and chain-gearing v, x. The steering wheel or wheels z, Fig. 2, are carried by a pivoted member 2, one end of which lies between springs 5 carried in an adjustable casing 6. In a modification, the pivot 3 is mounted in an eccentric bearing.
Patent GB-1181694-A (GB)
Title: Coating Process
IPC: G21K1/10
Filed: 1967-03-17
Abstract: 1,181,694. Coating. FORD MOTOR CO. Ltd. 17 March, 1967 [18 April, 1966], No. 12518/67. Heading B2K. A coated wooden surface is irradiated by an electron gun to cure the coating with the gun aimed at the flat surface of the wooden object. A scattering surface made say of lead or steel, is arranged at an angle of say 45‹ with the wooden object to scatter electrons not intercepted by the object onto the coated edges of the object.
Patent GB-530310-A (GB)
Title: Improvements in change speed gear
IPC: F16H63/18
Filed: 1939-04-26
Abstract: 530.310. Actuating change speed gear. MARCHANT, W. D., and PRESTWICH, E. S. April 26, 1939, No. 12537. [Class 80 (ii)] In a change speed gear a one-piece gear shift lever 11 is freely mounted on the gear change shaft 1, and upon movement is coupled uni-directionally thereto, and is afterwards returned to its initial position. As shown, the lever 11 is mounted on a bush 12 on the end of the gear change shaft 1. The lever has a pin 14 engaging a cam slot 15 in the bush 12, and ratchet teeth 7a, 8a, opposed to ratchet teeth 7, 8, on discs 4, 5, fixed to the shaft 1. A pin 16 fixed to the bush 12 passes through a slot 17 in the lever 11 and is engaged by a pair of compression springs 18. Upon a turning movement' being given to the lever 11 the pin 14 moves in the slot 15 and the lever moves axially to engage the teeth 7, 7a, or 8. 8a, and operate the gear change shaft 1. Upon release of the lever 11 the ratchet teeth disengage and the lever 11 is returned to the initial position by the springs 18. Instead of the pin and slot connection 14, 15, the lever 11 may be screw threaded to the bush 2, and the ratchet clutches may be replaced by cone clutches.
Patent GB-222796-A (GB)
Title: A sectional cover or lid for pots or bowls
IPC: A01G13/02
Filed: 1924-05-22
Abstract: 222,796. Martyn, J. May 22, 1924. Lids and covers.-A cover for a plant or flower pot or bowl comprises two or more portions the edges of which are suitably shaped so that when assembled apertures are provided in the cover. The cover may be flat or of any appropriate shape, and the parts 1 may provide a single aperture 2, or, for example, three apertures as shown in Fig. 4. The edges of the parts may overlap as shown in Fig. 5, and the covers may also be so constructed that a number of them, superposed, may together form a cover, as shown in Fig. 6.
Patent GB-553161-A (GB)
Title: Improvements in and relating to illuminating means for an electric oven or the like
IPC: A21B3/10
Filed: 1942-09-07
Abstract: 553,161. Retractive switches. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 7, 1942, No. 12611. Convention date, Sept. 12, 1941. [Class 38 (v)] A door-operated switch, particularly for a lamp in an oven, is actuated by the expansion and contraction of a spring when the door is opened or shut. As shown, a bridging contact 26 is kept from fixed contacts 25, towards which it is biassed by a spring 32a, by the pressure exerted between two plates 33, 34 clamped between turns of a spring 17, until door is opened a sufficient distance. This spring acts partly to counter balance the weight of a downwardly opening door, and also to press on a catch for positioning the door partly open.
Patent GB-553065-A (GB)
Title: Improvements in or relating to lavatory seats
IPC: A47K13/26
Filed: 1941-09-30
Abstract: 553,065. Closet-seats; hinges. BRITISH INDUSTRIAL PLASTICS, Ltd., and WOODFULL, A. H. Sept. 30, 1941, No. 12657. [Class 26] [Also in Group XXV] In a lavatory seat having fixing means comprising hinge lugs adapted to be secured in various positions by providing them with means for receiving the heads of the fixing bolts which allow for a substantial range of adjustment of the heads in the lugs, the lugs are moulded in two parts ,a base part provided with an elongated seating for the head of the bolt and a cover part which will be secured to the base part so as to enclose the head after the bolt has been inserted through the base part. The elongated seating may be of tortuous form so that both lateral and longitudinal adjustment of the heads is obtained. The tortuous slot 5 in the base part 3 of the hinge lug 2 is countersunk to form ledges 6 forming a seating for the heads 7 of fixing bolts 8 so that the latter can accommodate themselves in the bolt holes 9 in the pedestal 10. The part 3 is also provided with supports 11, 12, forming bearings for the hinge pin 13 provided with a recess 13<SP>1</SP> engaging a corresponding flange in the cover 4. When a cover 15 is also provided, the pin 13 enters bearings 14 on the seat 16 and bearings 17 on the cover, a distance piece 18 being provided between the cover bearings. The cover 4 is secured on the base part 3 by screws 19 entering holes 191.
Patent GB-710597-A (GB)
Title: Paper and coating composition therefor
IPC: B41M5/155
Filed: 1952-05-20
Abstract: 710,597. Paper coating compositions. NATIONAL CASH REGISTER CO. May 20. 1952 [May 26, 1951], No. 12699/52. Class 96 Printing paper is coated with a highly adsorbent substance, e.g. attapulgite, sodium or hydrogen zeolite material which may include some low adsorbent substance, e.g. kaolin, calciums, carbonate, or titanium dioxide, an adhesive, e.g. casein, soya protein, polyvinyl alcohol, or starch, or a latex of butadienestyrene or acrylonitrile, or a styrene-isoprene co-polymer, polychloroprene, or a methylacrylate-acrylonitrile co-polymer, and, to improve the keeping properties, sodium or potassium silicate. An example mentions also ammonium caseinate and tetra-sodium pyrophosphate. The paper may be printed with crystal violet lactone (e.g. in chlorinated diphenyl) which changes to a deep blue where, it contacts the attapulgite particles. Specification 666,437 is referred to.
Patent GB-150654-A (GB)
Title: Process for the recovery of camphor from gaseous mixtures
IPC: C07C49/437
Filed: 1920-05-07
Abstract: Camphor is recovered from the vapours which are exhausted to atmosphere in the manufacture of incandescent gas mantles, celluloid, photographic films, &c. by the use of phenol or its homologues, for example crude cresol, as an absorbent.  The camphor is liberated from the phenolic solvent by steam distillation or by precipitation with soda.  Specifications 127,309, 128,640, and 131,938, [all in Class 32, Distilling &c.], are referred to.
Patent GB-1217893-A (GB)
Title: Improvements in doors or windows
IPC: E06B/
Filed: 1968-03-15
Abstract: 1,217,893. Pivotable sashless windows. COMPAGNIE DE SAINT-GOBAIN. 15 March, 1968 [22 Nov., 1967], No. 12763/68. Heading E1J. The meeting style or jamb 3 of a pivotable sashless window or door 1 which the window or door can contact in its closed position comprises a rigid member 3 which is roughly H-shaped in cross-section disposed to present one of the recesses 9 to the adjacent closing edge 14 of the window 1 and there is accommodated in said recess a flexible sealing strip of flexible resilient material, e.g. plastics material, adapted to engage the pivotable window in the closed position thereof. The other recess of the member 3 is fitted on to a pivotable pane 2. The sealing strip consists of two beadings 11, 12 fitted respectively into dove tail grooves on the inwardly facing flanges 6, 7 of member 3 and are bridged by a concave web portion 13 to contact the edge of the window which is rounded as shown, the beading 12 preferably has a tongue 15 the tip of which contacts the external surface of the window 1 to form an external seal. The member 3 is integral with a housing 16 for accommodating mechanism for operating locks &c. The member 2 may be a stationary pane e.g. of toughened glass or it may be the fixed door surround.
Patent GB-184252-A (GB)
Title: Hearth-smelting or heating furnaces
IPC: F27B3/00
Filed: 1921-05-04
Abstract: 184,252. Faþoneisen - Walzwerk L. Mannstaedt et Cie Akt.-Ges., and Bansen, H. May 4, 1921. Gaseous-fuel furnaces.-In a smelting or heating furnace having a combustion chamber C at one end of the hearth or heating-chamber into which oppositely situated pairs of burner ports A<1>, A<11> are directed at different angles, and in which the main body of the heating-gases is drawn continuously along the hearth, the burner ports are connected up with a regenerator system for heating the gas supply. Regenerator chambers C<1>, C<11> are arranged beneath the combustion chamber C and are connected through flues B<1>, B<11> with the gas passages of the burner ports A<1>, A<11> respectively on both sides of the combustion chamber. In one phase of operation in which gas is supplied through the regenerator C<1> and flue B<1> to the ports A<1>, and air is admitted under control of dampers H<1>, a portion of the products of combustion is withdrawn through the ports A<11> and regenerator C<11>, while the main body of the heating-gases passes along the hearth and through a recuperator for heating the air supply. In the other phase of operation the functions of the ports A<1>, A<11> are reversed, without affecting however the main stream of heating-gases. The combustion chamber may be of circular crosssection with burner ports delivering tangentially thereinto and two or more pairs of ports may be provided at each side, in which case the combustion chamber may increase in cross sectional area in the direction of flow of the gases. A cold gas connection K is provided so that the regenerator system can be put out of action when desired. The combustion chamber may be applied to boiler or rotary furnaces.
Patent GB-208982-A (GB)
Title: Improvements relating to means for heating buildings and the like by means of hot air
IPC: F24H3/00
Filed: 1922-12-19
Abstract: 208,982. Marshall, T. Dec. 19, 1922. Air-heating stoves; sighting interior. - A stove for heating buildings by hot air comprises inner and outer shells a, e with alternating ribs d, f between which pass the gases from a gaseous or liquid fuel burner h. The gases subsequently pass through a radiator consisting of connected inner and outer annular chambers n, u. The air passes up between the outer shell e and an outer casing g and is further heated in the annular space r between the radiator chamber n, u, the area of the latter space being greater than that between the lower portion of the casing and the outer shell. Air is also admitted to the space t in the inner shell, which is preferably lined with heat-retaining material such as fire-clay, bricks or the like. An inspection window l allows the burner to be observed from above. Specification 201,205 is referred to.
Patent GB-639261-A (GB)
Title: Improvements relating to fuel systems for gas-turbine engines
Inventor: DAVIES KENNETH ROY
IPC: F02C7/22
Filed: 1947-05-12
Abstract: 639,261. Fluid-pressure servomotor-control systems. ROLLS-ROYCE, Ltd. May 12, 1947, No. 12821. Drawings to Specification. [Class 135] [Also in Group XXVI] In a fuel system for a gas-turbine engine in which a constant volume, engine-driven pump passes liquid through restricting means variable by a speed-selecting device and in which means responsive to the pressure drop across the restriction is operative to reduce the fuel delivery to the engine with increase of pressure drop, and vice versa, means is provided to limit the minimum value of the pressure drop whereby a corresponding upper limit of fuel delivery is defined. The invention is described with reference to the disclosure in Specification 639,260. It is stated that the loading on valves 25, 29 may be varied by speed-responsive devices similar to those described as varying the effect of capsule 37. Specification 639,262 also is referred to in the Provisional Specification.
Patent GB-970665-A (GB)
Title: Method of removing arsenical compounds contained in sulphur
IPC: C01B17/02
Filed: 1962-04-03
Abstract: Purified sulphur is prepared by removal of arsenical impurities from sulphur, which has been obtained in an elemental state by oxidative processes for absorbing H2S from gaseous mixtures by means of aqueous solutions containing arsenic compounds, by mixing an aqueous paste of sulphur with a purifying substance, heating the paste mixture in a filtering vessel to melt the sulphur, and filtering first the water in the paste and then molten arsenic-free sulphur, an arsenic-rich phase remaining in the vessel.  The purifying substance is Fe(OH)3, Fe(OH)2, Ca(OH)2, Mg(OH)2, silica gel or fuller's earth, either alone or jointly; the sulphur to be purified may initially contain a small proportion of iron hydroxides.  The purifying substance may be added in particulate form to the sulphur paste.  The paste mixture may be heated in an apparatus which contains a filter basket, preferably centrifugal. The temperature is gradually brought to 135-145 DEG  C. at which it is maintained.  The temperature may subsequently be raised to minimize the proportion of molten sulphur remaining in the arsenic-rich phase.  Specifications 833,451 and 902,081 are referred to.