baber/WOPTO huggingface dataset:
Patent GB-695744-A (GB)
Title: Improvements in or relating to means for indicating variations in liquid level
Inventor: SPOTTISWOODE NIGEL LAWRENCE
IPC: G01F23/44
Filed: 1951-05-15
Abstract: 695,744. Electric selective signalling system. GAS ACCUMULATOR CO., (UNITED KINGDOM), Ltd. May 13, 1952 [May 15, 1951], No. 11311/51. Class 40 (i). A signalling system for telemetering the level of a liquid in a container comprises a transmitter periodically generating a series of pulses whose number is dependent on the liquid level. The transmitter (Figs. 1, 2) comprises a battery B which energizes an electromagnet 29 through a make-and-break device 30, to drive continuously two coupled discs 13, 14 stepby-step through a ratchet 16 and pawl 27. The discs carry a slidable plunger 25 which is first pushed to one side by a fixed, spring-loaded pin 31, thereby operating a mercury switch 22, and subsequently pushed back thereby restoring switch 22, by a pin 32 on a wheel 9 geared to a horizontal shaft 1 whose angular position is determined by a float 6 in a liquid container, and may be indicated directly on a scale 12. Thus the number of steps between the two positions of the switch 22 is determined by the level of the liquid, and at each such step a pulse is transmitted by output lines 88. The receiver (Fig. 3) comprises an electromagnet 45 energized by the received pulses to step a ratchet wheel 39 against a spring 40, coupling through projections 41, 42 with a toothed wheel 37 driving a pointer 34 over a scale 35, against a further spring 38. The wheel 37 is held by a pawl 46 which is released for a short period prior to the receipt of a pulse train by electromagnet 47, whereby a new indication may be obtained. The electrical circuit for producing the correct sequence of operations comprises a diode 51 (Fig. 4) rectifying each received pulse to increase the bias on a valve 52, whereby the increased anode current energizes electromagnet 45 to actuate the pawl 44. The change in anode current also produces negative pulses on a condenser 57, thereby restricting the anode current of a further valve 58, but after the end of the train of pulses condenser 57 discharges through a resistor 59, and a relay 60 is energized, operating a first mercury switch 62 to close the circuit of electromagnet 47 while a series condenser 63 is charging, to release pointer 34, and a second mercury switch 61 with delayed action, which energizes an electromagnet 48 for releasing the ratchet wheel 39.
Patent GB-291208-A (GB)
Title: A hand machine for stropping razor blades
IPC: B24D15/08
Filed: 1927-04-29
Abstract: 291,208. Maywhort, G. April 29, 1927. Stropping - apparatus. - A machine for stropping safety razor blades consists of a U- shaped frame having slots A in the arms in which are journaled a. roller F of rubber &c. and a blade-holder having a cylindrical part D; a clip H fits over the holder to retain the blade in position. In operation, a strop is passed beneath the roller F, and the machine is reciprocated by means of a handle B, the roller F contacting with the part D and serving to reverse the blade holder. Reference has been directed by the Comptroller to Specifications 4778/04 and 15364/04.
Patent GB-377630-A (GB)
Title: Improvements in and connected with chain grate stokers
IPC: F23H11/04
Filed: 1932-04-21
Abstract: 377,630. Furnace grates. BABCOCK & WILCOX, Ltd., and DAVY, C. S., Babcock House, Farringdon Street, London.' April 21, 1932, No. 11433. [Class 51 (i).] A grate bar for travelling grates serving to transmit the drive is formed of two parts A, B, each part being provided with a lug C and opening D engaging with the opening D and lug C of the other part. The lower edges of the two parts are provided with parallel inclined slots E oppositely directed and embracing the supporting rods.
Patent GB-114908-A (GB)
IPC: D03D49/08
Abstract: 114,908. Scott, W. April 27, 1917. Letting-off warps.- In let-off mechanism in which the tension of the warp is controlled by the weight of the warp and warp beam, the weight acts through lever mechanism which is adjustable to vary the effect of the weight on the gripping-devices. The shaft 13 of the beam is supported in a bearing - block 6a pivoted at 6<b> to a bracket 6 slidable in one arm 3 of a bell-crank lever pivoted to a shaft 4, the other arm 3a being attached to a chain 9, and a metal band lined with felt or leather or other flexible friction device passing around the beam and being secured at its other end through a spring 22 to a bracket 11 on the framework. The flexible friction device may be replaced by brake shoes adapted to be pressed into contact with the beam by the lever arms. The shaft 13 is guided vertically by means of a slotted bracket 12. In order to vary the tension of the chain &c., the bracket 6 is moved towards or from the shaft 4 through a screw 7 and a hand-wheel 8. In a modification, the tension on the chain is automatically diminished by means of a tooth on the beam, which engages, at each revolution, a toothed wheel geared to another toothed wheel on the screw 7.
Patent GB-114912-A (GB)
IPC: B24D5/06
Abstract: 114,912. Jennings, M. M. May 1, 1917. Drawings to Specification. Wheels.-The peripheries of wheels for surfacegrinding are formed with helical ridges of square section.
Patent GB-219414-A (GB)
Title: Improvements in and relating to tuning devices for radio telephony and the like
IPC: H01F21/12
Filed: 1923-04-28
Abstract: 219,414. Woodroffe, F. K., and Dawson, R. N. April 28, 1923. Tuning-apparatus, construction of.-In a tuning device a rotary handoperated contact member controls the amount of inductance in the circuit, and during its rotation acts through inclined or cam-shaped parts on the movable member of a variable condenser. In one construction, Fig. 1, the bottom 5 of the casing forms the fixed plate of the condenser, and is covered by a layer of mica or dielectric. The movable member 8 of the condenser is slidably mounted on the rotatable spindle 1, being prevented from rotation by pins 9 on the cover of the casing which engage lugs on the member 8. The upper surface of the member 8 is formed with cams 17 which engage a pin 11 on a disc 12 secured to the spindle 1. The disc 12 carries contact plates 15 which cooperate with spring-controlled contact studs 16 connected to sections of the inductance coil, so that on rotating the spindle, the inductance is thrown into circuit in steps, and the capacity is varied from a minimum to a maximum at each step. In a modification, Fig. 3, the contact plates 15 are mounted on a quadrant 30 pivoted at 31, and the member 8 is slidably mounted on a hollow spindle 1<@> secured to an operating knob 2. A pin 11 secured to the spindle engages the inclined upper surface 17 of the member 8, and causes the capacity to vary from minimum to maximum values once during each revolution of the spindle. The inner end of the quadrant 30 is formed with slots or teeth which engage a pin or tooth 29 on the spindle 1<x>, whereby an adjustment of the inductance is effected once during each revolution. A vernier plate 19, for producing a fine adjustment of the capacity, is operated by a spindle 1, which passes through the spindle 1<x> and is provided with a separate knob 2<x>. The inner and outer ends of each section 40 of the inductance coil may be connected to contact studs 42, 42<x> arranged in two concentric rows, as shown in Fig. 4, and the disc 12, or the underside of the dial plate, may be provided with co-operating contactmembers 41, 43, in order that the portions of the inductance coil not in use may be completely disconnected from the circuit.
Patent GB-733034-A (GB)
Title: Improvements relating to the recovery of new growth factors or vitamins from aqueoussolutions thereof
IPC: C12P19/42
Filed: 1953-04-27
Abstract: The invention comprises coprogens which are effective in supporting the growth of Pilobolus species, particularly P. Kleinii, and which contain the elements carbon, hydrogen, nitrogen, oxygen and iron, said substances being soluble in hydroxylated solvents, and insoluble in acetone, ether, benzene, chloroform and carbon tetrachloride, and their preparation from aqueous fermentation liquors thereof by extracting an aqueous fermentation liquor with a water-immiscible hydroxylated organic solvent, separating the solvent phase and reducing its volume. Preferably the fermentation liquors are treated with a salting out agent, e.g. ammonium sulphate or sodium chloride, and the fermentation liquor thereafter extracted with a water-immiscible hydroxylated solvent, e.g. n-butanol, iso-butanol, isoamyl alcohol, benzyl alcohol or phenol, to obtain a solvent phase which is chromatographed.  The solvent phase from the column, e.g. n-butanol and ethyl acetate, is distilled azeotropically, while continuously adding water, until a substantially aqueous solution is achieved, the aqueous solution lyophilised, the solids dissolved in a small amount of ethanol and a crystalline product recovered therefrom.  As the aqueous fermentation liquor containing coprogens there may be used Penicillium, Sarcina lutea, or Actinomyces fermentation liquor.
Patent GB-551924-A (GB)
Title: An improved method of, and means for, purifying wort
IPC: B04B15/00
Filed: 1941-09-12
Abstract: 551,924. Centrifugal separators. AKTIEBOLAGET SEPARATOR. Sept. 12, 1941, No. 11707. Convention date, Oct. 19, 1940. [Class 23] [Also in Group VI] In cooling, purifying and aerating wort, the hot wort coming from the boiler 1 is passed through a strainer 2 to remove coarse impurities, through a centrifuge 3 to remove other impurities and through an air mixer 4 and cooler 5 into a vat 6 in which the impurities which precipitate during the cooling operation are removed by being raised to the surface by finely divided air, which forms a layer of froth that can be skimmed off. The air-mixer 4 may be dispensed with and air mixed with the wort in the centrifuge 1. For this purpose, a paring device projecting into the rotating liquid consists of a disc 4, Fig. 2a, having channels 5 and covered at each side by discs one or both of which have recesses 7 in the periphery, these discs being adjustable to vary the position of the recesses with respect to the channels 5. Alternatively, the rotating liquid in a chamber 5, Fig. 3, is separated from the atmosphere by a disc 2 in a chamber 3 and air is drawn into the chamber 5 through a valved pipe 8, chamber 6 and opening 7 and is discharged with the wort by a paring tube 1 having its orifice directed towards the rotating liquid. The cooler may have a throttle valve at its outlet to increase the pressure and therefore the amount of air retained by the wort. A closed chamber in which the pressure is maintained may be arranged be. tween the cooler and the throttle valve.
Patent GB-565438-A (GB)
Title: Improvements in or relating to bookbinding
IPC: B42D1/00
Filed: 1943-07-19
Abstract: 565,438. Books; memorandum appliances. HIRSCH, C. July 19, 1943, No. 11717. [Class 16] Books, memorandum pads, &c. comprise a base 10, Fig. 1, having two or more separate packs of leaves 11, 12 bound thereto along two or more edges by temporary or permanent bindings. Two separate packs 25, 26, Fig. 4, may be bound to one edge, and a third 14 to the opposite edge, or two packs 30, 31, Fig. 6, may be bound to opposite edges between packs 13, 14 bound to the other two edges. Stiff covers may be provided for the packs. The binding-devices may consist of tubes 17, 18, Fig. 1, of cellulose acetate having overlapping edges and cut away at intervals to form rings, which pass through holes in the sheets. The base may have an extension in the form of a pencil box &c.
Patent GB-197330-A (GB)
Title: Improvements in or relating to the manufacture of iron and steel articles which are subjected during manufacture to the action of a testing load
IPC: G01M5/00
Filed: 1923-05-01
Abstract: 197,330. Daeves, K., and Weissenberg, B. May 1, 1922 [Convention date]. Shells and barrels.-Steam boilers are subjected to a testing-load which is increased until the yield point of the material is reached, whereupon the load is removed and the article is annealed to remove the effects of overstrain. A closed container 1 intended for use as a boiler is provided with circumferential steel tapes 2 kept taut by weights, and end frames 3 carrying pins 4 capable of longitudinal movement; the tapes and pins may be calibrated, or they may operate recording-instruments. Internal pressure is applied until deflection of the container indicates that the yield point has been reached. The container is then passed to an annealing-furnace.
Patent GB-1536349-A (GB)
Title: Rotary sliding-vane-type double-lobe hydraulic pumps
IPC: F04C14/22
Filed: 1976-03-23
Abstract: 1536349 Rotary positive displacement hydraulic pumps; reciprocating pumps; gas turbine fuel control systems SUNDSTRAND CORP 23 March 1976 [30 April 1975] 11734/76 Headings F1A F1F and F1G In a radial sliding vane pump, a cam ring 161 defines two part-elliptical lobes 162, 163 of differing profiles. As shown, the vanes 16 also act as reciprocating pistons, a pair of axially pressure loaded valve plates (21, 22) Fig. 2 (not shown) defining inlet ports 70, 71, 72, 73 and outlet ports 85, 86, 90, 91, thus providing four volumetrically different outputs. In the arrangement of Fig. 3 which may feed fuel to an aircraft jet engine, fuel from a boost pump 68 is fed to a pair of inlets 65, 66, one pair of outlet ports 85, 86 delivering into line 80 via line 81, the other pair 90, 91 delivering into line 80 via line 82 and a check valve 96. Each discharge has a spring and pressure loaded by-pass valve 100, 105, the latter having a weaker spring than the former. The pressure loading on the valves is controlled by a valve 120 having a spool movable by a diaphragm responsive to the pressure differential across a throttling device in a fuel control. As the diaphragm moves the pressure in lines 125, 126, 127 is varied by the position of the land 124, having output pressure via line 121a on one side and drain pressure on the other. A relief valve 112 connects line 80 to inlet 66.
Patent GB-362311-A (GB)
Title: Improvements in closures for jars or the like containers
IPC: B65D51/14
Filed: 1931-04-21
Abstract: 362,311. Closures for jars. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Phoenix-Hermetic Co.; 2444. West 16th Street, Chicago, U.S.A.) April 21, 1931, No. 11759. [Class 125 (iii).] Relates to jar closures of the type in which a sealing band which secures the closure is spun between two ribs on the mouth of the jar. According to the invention the bead 15 which is spun between the ribs 3, 5 extends over the locking lug 21 and lifting tongue 22, and a flange on the lower edge of the locking ring engages the bead 5.
Patent GB-1074924-A (GB)
Title: Treatment of lead-containing sludges
Inventor: OXLEY GEOFFREY ROY
IPC: F26B21/14
Filed: 1965-03-19
Abstract: 1,074,924. Drying lead containing sludges. ASSOCIATED OCTEL CO. Ltd. March 10, 1966 [March 19, 1965], No. 11780/65. Heading F4G. A method of drying lead containing sludges resulting from the manufacture of lead alkyls, particularly lead tetraethyl, comprises treat. ment in a bed of the particles fluidized by a stream of gas non-reactive with the lead or any lead alkyl, e.g. nitrogen, which is maintained at a temperature between 30 C. and the melting-point of the sludge. The dried lead is recovered by overspill from the upper surface of the bed in the form of granules.
Patent GB-251997-A (GB)
Title: Manufacture of compounds containing carbocyclic or heterocyclic rings
IPC: C07B61/00
Filed: 1926-05-05
Abstract: 251,997. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). May 5, 1925, [Convention date]. Condensation prodructs, unspecified; anthraquinone-acridones; thioindigo dyes. - Fluorsulphonic acid is used in place of chlorsulphonic or fuming sulphuric acid for effecting ring-closure in aromatic compounds. In the preparation of thioindigo dyes from arylthioglycollic acids the fluorsulphonic acid may at the same time oxidize the oxythionaphthene first formed. According to examples (1) a chloroxythionaphthene is obtained from m-chlorphenylthioglycollic acid; (2) 1-chlor- 2 : 3-naphtho-oxythiophene and the corresponding naphthioindigo from 1-chlornaphthalene-2- thioglycollic acid; (3) the naphthoxythiophene yields indirubin dyes by condensation with isatin or its derivatives; (4) 4-aminoanthraquinone- 1 :2-acridone from 4-aminoanthraquinone-1-anthranilic acid. The Specification as open to inspection under Sect. 91 (3) (a) describes also the conversion of 2-methoxy-5-chlorphenylthioglycollic acid into 4 : 4<1>-dichlor-7 : 7'-dimethoxythioindigo. This subject-matter does not appear in the Specification as accepted. 1-Chlornaphthalene-2-thioglycollic acid is obtained from 1-chlor-2-naphthylamine by diazotizing, treating with a xanthate, saponifying, reducing to the 1-chlor-2-mercaptan, and condensing with chloracetic acid.
Patent GB-412381-A (GB)
Title: Improvements in or relating to fans
IPC: F04D29/28
Filed: 1933-04-22
Abstract: 412,381. Centrifugal fans. KEITH & BLACKMAN CO., Ltd., J., and WOODLEY, D. S., 27, Farringdon Avenue, London. April 22, 1933, No. 11834. [Class 110 (i).] A rotor for a centrifugal fan has a back plate A and a shroud plate B with eight straight blades C, each inclined backwardly at approximately 30‹ to the tangent of the inlet eye circle where it is intersected by the inner end of the blade. The diameter d of the inlet eye is approximately one-third of the diameter D of the rotor. The intersection of the blade and the outer periphery of the plate A falls 45‹ behind the intersection of the blade and the inlet eye, so that the inner intersection of one blade and the outer intersection of the previous blade are situated on a radius of the rotor. The axial width W of each blade at the inlet eye exceeds the axial width w at the periphery by one-eighth of the diameter d of the eye. Two rotors may be joined back to back to form a double inlet rotor and the blades may be shortened so that they do not reach the outer periphery of the rotor. Specification 412,380 is referred to.
Patent GB-1453247-A (GB)
Title: Apparatus for cooking
IPC: H05B3/00
Filed: 1974-03-18
Abstract: 1453247 Electric cooking ELEKTRO-FOOD AB 18 March 1974 [16 March 1973] 11860/74 Heading A4D [Also in Division H3-5] In grilling apparatus in which sausages, hamburgers &c. are heated by current through them from electrodes e.g. 5, 10 between which they are positioned at least one of the electrodes e.g. 10 is loosely mounted so that it may readily conform to the variations in shape of food as it is being heated. The weight of the electrode may be sufficient to keep the electrode in contact with the food, but preferably springs 12 are provided. The spring pressure may be adjustable. As shown, sausage electrodes 5, 10 have cavities 6, 11 to receive the sausages, the lower electrode 5 having a fat drainage groove 7 communicating with a withdrawable collecting box 9 by a channel 8. The hamburger electrodes 15, 17 have grooves 16, 18. All the electrodes are of cast or pig-iron. Timers 13, 19 are provided for the hamburger and sausage sections. The electrodes are supplied from the secondary of a step-down transformer, the voltage of which is stepwise adjustable.
Patent GB-1155230-A (GB)
Title: Improvements in or relating to the Electrical Insulation of Electrical Conductors
IPC: C08G73/14
Filed: 1968-03-12
Abstract: 1,155,230. Polyamide imides. DR. BECK & CO. A.G. 12 March, 1968 [20 March, 1967]. No. 11903/68. Heading C3R. Thermostable, linear polyamide imides are made by reacting a dicarboxylic acid containing imide groups forming part of a chain between the functional carboxyl groups in the molecule with a diisocyanate in a polar organic solvent in approximately stoichiometric proportions. Up to 5% by weight excess of the diisocyanate may be present. The acid may be prepared by reacting 2 moles of an aromatic tricarboxylic acid anhydride, e.g. trimellitic acid anhydride, with 1 mole of a primary diamine which is preferably aromatic. A solution of the polyamide imide may be applied to a conductor to form an electrically insulating coating.
Patent GB-746768-A (GB)
Title: Improvements in or relating to infra-red radiation meters for gas analysis
IPC: G01N21/3504
Filed: 1953-04-30
Abstract: 746,768. Infra-red spectrometers. SIEMENS & HALSKE AKT.-GES. April 30, 1953 [May 2, 1952], No. 11921/53. Class 40 (3). In infra-red gas analysis apparatus, the comparison between the energy in a particular spectral range remaining in beams which have traversed paths 5, 6 and 7, 8 containing the sample gas and a reference gas respectively is effected by means of a bridge of temperaturesensitive resistors 16 ... 19 in chambers 11 ... 14 containing the gas to be detected or another gas with the same spectral absorption characteristic.
Patent GB-979641-A (GB)
Title: Improvements in and relating to groynes for the control of coastal erosion
IPC: E02B3/06
Filed: 1961-04-04
Abstract: 979,641. Groynes. S. M. WOOD. April 4, 1961, No. 11983/61. Heading E1H. A groyne 1 for resisting the littoral flow of material along a fore-shore comprises one or more walls extending from the shore end 3 outwardly to the seaward end 4, each wall comprising rows of longitudinal members disposed one above the other, at least some of the members being castellated, and said wall (formed of longitudinally abutting sections 2) defining interspaces of progressively increasing cross-sectional area whereby the groyne provides outwardly increasing permeability to the transverse through flow of water.
Patent GB-992625-A (GB)
Title: Improvements in or relating to brakes
Inventor: PURDY WILLIAM CHARLES
IPC: B66D5/00
Filed: 1964-03-20
Abstract: 992,625. External shoe brakes. THOMPSON BROS. (ENGINEERS) Ltd. March 20, 1964, No. 11985/64. Heading F2E. A brake for a lifting and lowering mechanism comprises a brake drum 10 which is normally engaged by non-rotatable friction means 12 and which is mounted on a drive shaft 5 and is connected thereto by a freewheel 15 so that a lifting movement of the shaft does not entrain the brake drum whereas a lowering movement does so. The friction means 12 are a pair of friction linings which are mounted on brake shoes pivoted to a baseplate 2 and urged together by compression springs 14. The freewheel comprises an outer race 17 keyed to the drum 10 and an inner, cammed race 18 keyed to the shaft 5. Rollers 19 are trapped between the races. The brake is mounted on ball bearings on the shaft intermediate of a driven chain wheel on one end of the shaft and a reduction gear to which the other end of the shaft is coupled (Fig. 1, not shown).
Patent GB-593052-A (GB)
Title: Improvements relating to means for mounting fuel injection pumps, magnetos and otherauxiliary apparatus on internal combustion engines
IPC: F02M39/00
Filed: 1945-05-14
Abstract: 593,052. Fuel-injection pump mountings. C.A.V., Ltd., EVANS, F. M., and NICOLLS, - W. E. W.. May 14, 1945, No. 12016. [Class 102 (i)] [Also in Groups XXVII and XXXV] Means for mounting on an internal-combustion engine a fuel pump or other auxiliary apparatus adapted to be driven by the engine, comprises a bracket a provided at its rear edge with an overhanging ledge f and also with a lug h for engagement with the lug j on the front side of the pump c by a clamping bolt i which when tightened forces the projection g formed on the side of the pump c firmly against the ledge f to hold the base of the pump rigidly on the concaved surface d of the bracket a.