baber/WOPTO huggingface dataset:
Patent GB-551472-A (GB)
Title: Improvements in modulated high frequency carrier wave signalling systems
IPC: H03C3/09
Filed: 1941-08-20
Abstract: 551,472. Wireless receiving and transmitting apparatus. DALGLEISH, J. W., and PYE, Ltd. Aug. 20, 1941, No. 10621. [Class 40 (v)] A combined transmitter and receiver comprises a stable oscillator producing a series of discrete harmonic frequencies, a receiver of the super-heterodyne type of which heterodyne oscillations comprise or are locked in synchronism with any selected one of the harmonics of the stable oscillator, and a transmitter of which the sending frequency is controlled in relation to the frequency of the said heterodyne oscillations by means of an automatic frequency control circuit, so that the sending frequency and the heterodyne frequency differ by the amount of the intermediate frequency of the receiver. The invention is shown applied to a combined transmitter and receiver for frequency modulated carrier signals. Signals received on aerial A<1> are amplified at 5 and fed to a mixer 4, amplifier 6, limiter 7, discriminator and demodulator 8 followed by audio and output stages 9, 10 and telephones T. The mixer 4 is fed by a local oscillator 3 whose frequency is controlled by the output of an amplifier 2 which selects harmonics of a crystalcontrolled multi-vibrator of other stable oscillator 1. By making the fundamental frequency of 1 equal to the separation of the signal channels, e.g. 10 kcs., successive harmonics will provide a suitable oscillator frequency for neighbouring channels. The transmitter comprises a microphone M, reactance modulator 16, oscillator 11, limiter and buffer 12, power amplifier 13 and transmitting aerial A<2>. In order to use the controlled oscillator 1 to control the frequency of transmission, a voltage from 11 is fed to the mixer 4 and the D.C. voltage from the discriminator 8 is fed to the reactance modulator 16 to lock oscillator 11 to the frequency to which the receiver is tuned.
Patent GB-502140-A (GB)
Title: Improvements in or relating to coatings for transport bottles or other breakable articles
IPC: B65D23/08
Filed: 1938-04-08
Abstract: 502,140. Protective coverings for bottles &c. ALWARDT, E. April 8, 1938, No. 10774. Convention date, Jan. 27. [Classes 66 and 125 (i)] Transport bottles or other breakable glass &c. articles for conveying chemicals &c. are provided with protective coverings by applying to the outer surface b a binding-medium such as cold glue, followed immediately by a layer of coarse sawdust c, granular cork, peat dust or like material, and, after this has dried, more cold glue and a layer of fine sawdust d or two layers of 2 millimetre granular cork, which is allowed to dry where upon a pulp e made of cold glue and wood dust is applied. When solidified, the covering is coated with a water impervious coat f, e.g. by immersion in a bath of bitumen or asphalt, followed by a coat of metal, chlorinated caoutchouc or a thin coat of xylolith. The layers are applied so as to be thickest at the bottom, which may be reinforced by a plain or profiled plate made of composition wood fibre. In the case of a small bottle, a handle h is secured to the neck by a clamp g; the handle of a big bottle has, in addition, supporting-limbs which extend to the bottom of the bottle and are embedded in the covering.
Patent GB-1004475-A (GB)
Title: Dealkylation of substituted aromatic hydrocarbons
IPC: C07C4/16
Filed: 1962-03-21
Abstract: The dealkylation of a hydrocarbon mixture containing alkyl benzenes and alkyl naphthalenes, the former being present in an amount of 10-80% by weight of the mixture and the weight ratio of the former to the latter being 0.11-4 : 1, is effected at 600-800 DEG  C. and 250-1000 p.s.i.g. in the presence of at least 3 mols. of hydrogen per mol. of hydrocarbon, e.g. up to 25 mols. The space velocity may be 0.1-3 vol./vol./hr.  Preferably, only methyl groups are present in the alkyl benzenes; benzene and naphthalene are recovered as products.
Patent GB-196917-A (GB)
Title: Improved manufacture of blasting cartridges
IPC: F42B3/00
Filed: 1923-04-21
Abstract: 196,917. Soc. Anon. d'Arendonck. May 1, 1922, [Convention date]. Blasting-cartridges.-Cartridges of the kind in which the explosive charge is surrounded by a layer of extinguishing material are made as follows:- The explosive charge is placed in the middle of a cylindrical paper case pervious to water and closed at one end; the annular space between the charge and the case is filled with dry pulverulent extinguishing material mixed with a binding agent capable of setting with water, such as plaster, cement, or a silicate, the open end of the case is closed, and the whole is immersed in water for a certain length of time, and then removed to dry. Other methods of manufacture are disclaimed.
Patent GB-1075070-A (GB)
Title: Recording devices
Inventor: ALLAM PETER CLERK
IPC: G01D15/16
Filed: 1965-03-15
Abstract: 1,075,070. Pens for recording instruments. P. G. S. MERO. March 15, 1965. No. 10899/65. Heading B6P. [Also in Division F1] In a graphic communication receiving station of the type described in parent Specification 950,933, an auxiliary reservoir 61 is mounted on the pen arm 42 for movement with the nib 41. Ink conduit means which includes an inlet line 69 and a recirculation line 72, is connected between the auxiliary reservoir 61 and a main supply reservoir 66. A dual channel pump 80 (see Division F1) is connected in both lines and pumps ink through the inlet line into the auxiliary reservoir 61 and pumps any excess ink through the recirculation line back into the main supply reservoir 66. The drive for the pump is taken from the paper strip drive, so that pumping only takes place when the paper strip 47 is advanced, although a timing device and separate drive (38<SP>1</SP>) for the pump could be utilized, quite independently of the paper feed (Fig. 3). The auxiliary reservoir (61, Figs. 4 and 5) is connected to pen (41) by a U-shaped ink supply line comprising an inlet portion (62) within reservoir (61), a reverse bend (63) and a connecting portion (64). An air vent (76) is provided at a greater elevation than the intake opening (71) of the recirculation line (72), which is itself situated at a greater elevation than the outlet opening of the inlet line (69), irrespective of whether the reservoir (61) is positioned horizontally or vertically. The pump 80 and the inlet and recirculation lines 69 and 72 therefore maintain a substantially constant supply of fresh ink in the auxiliary reservoir 66.
Patent GB-539968-A (GB)
Title: Improvements in or relating to the extraction of gelatinous materials from fibrous plants
IPC: C08B37/18
Filed: 1940-06-26
Abstract: 539,968. Vegetable colloids. WALSH, C. L., and NEWMAN, A. A. June 26, 1940, No. 10916. [Class 121] Colloidal matter is extracted from plants of the Agave family, aloes. Sanseviera &c. at ordinary temperatures by treating them first with a dilute solution of sodium carbonate, removing the alkaline solution and then extracing with tri-sodium phosphate solution which may contain alkali. The gelatinous substance may be precipitated from the extract by addition of organic liquids such as alcohol or acetone; neutral salt solutions such as sodium chloride or acids such as hydrochloric, sulphuric or acetic. The precipitate may be dried. The plants may be given a preliminary treatment with a dilute acid. Specification 517,729 is referred to.
Patent GB-236501-A (GB)
Title: Improvement in aerial landing and launching platform
IPC: B64F1/36
Filed: 1923-12-28
Abstract: 236,501. Kenney, M. A. Dec. 28, 1923. Drawings to Specification. Landing-places and launching-ways.-A landing and launching platform is provided with a series of spaced parallel guide members, preferably stretched cables, supported resiliently above the platform by coil springs and adapted to be engaged by downwardly projecting parts on the aircraft. The platform described is identical with that described in Specification 234,531 which claims other features.
Patent GB-914293-A (GB)
Title: A process for doping a semi-conductor body with boron
IPC: C30B31/04
Filed: 1961-03-24
Abstract: Alloys for use in the manufacture of semi-conductor devices (see Group XXXVI) are made by dissolving boron uniformly in germanium, silicon or aluminium, and dissolving the resulting material in gold or silver to form an alloy.  A typical alloy consisting of 98.9% gold, 1% silicon and 0.1% boron by weight is formed by heating 9 grams silicon and 1 gram boron together in an inert atmosphere at 1500-1600 DEG  C., and heating 1 gram of the resulting material with 99 grams of gold to 1000 DEG  C. to form the alloy which is subsequently rolled into foil.  Another alloy is formed by mixing 9.5 grams of aluminium with 0.5 grams boron at 1000 DEG  C., and then heating 2 grams of the product with 98 grams of silver.
Patent GB-454948-A (GB)
Title: Method of increasing yield in the catalytic synthesis of aliphatic hydrocarbons
IPC: A46D3/04
Filed: 1935-04-10
Abstract: Aliphatic hydrocarbons containing more than one carbon atom, particularly liquid hydrocarbons, are produced by reacting mixtures of carbon monoxide with at least an equal volume of hydrogen in the presence of catalysts, at ordinary or slightly increased or reduced pressure, and at temperatures of 180--200 DEG  C., the reaction being effected in at least two stages with intermediate removal of all or part of the condensible reaction products, and in the early stages conditions being so chosen that the gases are only partly converted, for example by operating at low temperatures within the range, or by using a deficiency of hydrogen or high velocities.  The gas mixture may traverse a cycle with one or more contact stages and then, after removal of reaction products, be completely converted in a further stage.  In examples: (1) a mixture of 2 parts H2 and 1 part CO is passed over three layers of cobalt in succession, the reaction products, oil, benzine, and water, being removed after passing each layer.  The temperature is selected so that no more than one third of the CO is converted in each stage, for example, 182 DEG  C. in the first stage, 187 DEG  C. in the second, and 193 DEG  C. in the third. Alternatively, two layers may be disposed in parallel and, after removal of reaction products, the gases passed over a third layer. Temperatures may be 184 DEG  C. in the first stage and 195 DEG  C. in the second; (2) two stages at 180 and 200 DEG  C. are employed, light benzine and lower boiling hydrocarbons being removed intermediately as by washing with cold oil or the use of active carbon; (3) as in (2) all the reaction products being removed, the oil by washing with an oil at above 100 DEG  C., the water with water, unsaturated gaseous hydrocarbons with H2SO4, and saturated gaseous hydrocarbons with active carbon; (4) insufficient hydrogen is used in the first stage and after each stage only so much hydrogen is added as will limit the conversion.
Patent GB-233515-A (GB)
Title: Improvements in dustless rock drill
IPC: E21B21/01
Filed: 1924-05-05
Abstract: 233,515. Marks, E. C. R., (Ingersoll- Rand Co.). May 5, 1924. Percussive drills. - In order to prevent pressure air from mixing with the clearing fluid a washer D is arranged at the front end of the cylinder formed with ports P of sufficient area to reduce the pressure at the front end to atmospheric pressure on the rearward stroke of the piston. A fibrous packing R is provided engaging the flutes of the piston shank.
Patent GB-121571-A (GB)
Title: Improved Lubrication Apparatus for Steam Engines.
Inventor: MEYERINGH DIRK JAN CHRISTIAAN
IPC: F01B31/10
Filed: 1918-07-06
Abstract: 121,571. Meyeringh, D. J. C. July 6, 1918. Force-feed and displacement lubricators.-To lubricate steam-engine cylinders, &c., oil is supplied from a vessel 1 by the difference of pressure at two points in a contracted nozzle 3 placed in the main steam pipe. The narrowest part of the nozzle 3, where the velocity of the steam is greater and the pressure less, is connected to the vessel 1 by a pipe 5, through which oil is supplied to the steam and becomes atomized in it. The wide part of 'the nozzle is connected to the vessel by a pipe 2 containing a horizontal spiral coil 4. The part above the coil contains steam, and the part below it contains water of condensation, which displaces the oil in the vessel. To balance the pressures due to the liquids in the pipes 2, 5, the vertical lengths of the pipe 2 below the coil 4 and of the pipe 5 are proportional to the specific gravities of oil and water respectively. The nozzle 3 may be replaced by two Pitot tubes. The device is applicable for lubricating a number of engines from a common source.
Patent GB-549067-A (GB)
Title: Improvements in or relating to newspaper conveyors
IPC: B65H29/60
Filed: 1941-09-01
Abstract: 549,067. Belt conveyers. IGRANIC ELECTRIC CO., Ltd., and RAPLEY, H. H. Sept. 1, 1941, No. 11159. [Class 78 (i)] A newspaper conveyer in which the papers are gripped between belts is provided with a free running diverter belt movable into alternative positions to direct the stream of papers on either side of itself into either of two courses. The stream of papers passing between conveyers 17 is diverted along either of the conveyers 10 by the free running diverter belting 1 running over fixed pulleys 2, 3 and over a pulley 4 mounted on an arm 13 so that it may be moved to the right as shown (when the papers pass to the left conveyer 10) or to the left. The conveyer belts 6, 7, one or other of which drives frictionally the non-driven belt 1, run over corner pulleys 8, 9 which are each rendered self tensioning by a link connection to the appropriate pulley 16. Specification 533,750 is referred to.
Patent GB-1149414-A (GB)
Title: Noncontact current-sensor
Inventor: ISSERLIN EVGENY BORISOVICH
IPC: G01R15/20
Filed: 1967-03-09
Abstract: 1,149,414. Current measurement. E. B. ISSERLINandY.A. BYSTROV. March 9, 1967, No.11163/67. Heading G1U. [Also in Division H1] A current sensor for measuring a high current by a non-contact method consists of an evacuated vessel 4 containing an electrode system coaxial with the lead carrying the high current and comprising a cathode 1 and two longitudinally separated anodes 2, 3. The electrodes are energized from a suitable source, with loads in each anode circuit. The magnetic field produced by the current to be measured deflects the electron flow in the vessel towards one or other of the anodes. By measuring the potential difference between the anodes, the value of the input current is ascertained. The arrangement is such that the effects of external magnetic fields or misalignment of the test current conductor are obviated. In an alternative arrangement Fig. 4 (not shown) the electrodes are annular, and arranged with the anodes separated radially, and arranged on either side of the cathode, so that electron current flows parallel to the test current. The emissive coating of the cathode may be distributed so that various relationships between the input current and output voltage of the device are established Figs. 5-7 (not shown). The vacuum tube system may be designed to clip round a current carrying conductor Fig. 9 (not shown). Alternatively a special unit may include a central conductor for connection in series in a circuit to be tested Fig. 10 (not shown).
Patent GB-551761-A (GB)
Title: Tuning mechanism for wireless apparatus
IPC: H03J5/12
Filed: 1941-09-05
Abstract: 551,761. Radio receivers. PHILCO RADIO & TELEVISION CORPORATION. Sept. 5, 1941, No. 11372. Convention date, Sept. 6, 1940. [Class 37] [Also in Group XL] A push-button tuning arrangement comprises a set of plungers 92 depression of which moves an operating bar 30 a predetermined distance according to the setting of threaded operating rods 57 which engage the edge of bar 30 and which are adjustable by means of milled wheels 91 accessible through slots in the individual pressbuttons. Bar 30 carries pins 46, 47 which engage crossed levers 34, 35 (dotted on Fig. 4) pivoted at 36, 37 the free ends of which operatively engage a bar 22 of a slidable frame 21, 22, 23 to the member 21 of which are attached by members 19, the movable cores 17 of permeability tuning coils 16. Movement of the frame 21, 22, 23 is assisted by an electromagnet 67 which is energized by a switch 72 by movement of the locking bar 59, a depression of any button, a second pair of contacts on the switch serving to mate the receiver during tuning. The central push-button is used for manual tuning and in this case the tuning knob 95 is mounted directly on the adjusting means for threaded operating rod 57. A pin 54 on link 35 abuts a cam surface 103 on a pivoted link 96 to move a pointer 99 having an index 105 movable over a scale (not shown) carried on a bracket 106. Fig. 20 shows an arrangement in which push-button 108 serves for automatic tuning and button 109 for manual tuning as previously described. A further button 110 has a knob connected by a flexible shaft 112 to a volume control 111 while the shaft is formed with a lug 114 for engaging an on and off switch 113. The arrangement is such that depression of 110 de-energizes the set. Operation of another button releases 110 to energize the set and allow 110 to be used for volume control.
Patent GB-474287-A (GB)
Title: Improvements in electric motor control systems
IPC: B21B37/54
Filed: 1936-04-21
Abstract: 474,287. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., CARNEGIE, H. S., and ROGERS, A. E. April 21, 1936, No. 11381. [Class 38 (iii)] Field control.-A reel, on which strip material is wound as it is delivered from a variable speed mill or other machine, is driven by a motor 4 having a field winding 6 supplied from an exciter 9, a field 8 of which is excited by the motor armature current so that the motor horse-power is kept substantially constant at any one mill speed. The motor 4 is supplied from a generator 1 driven with the mill, and a compounding field winding 5 and a decompounding field winding 3 may be provided on the motor and generator respectively. The exciter has an additional field 7 assisting the field 8 and fed from a constant voltage source 12 through a tension adjusting resistance 11. The exciter 9 may be a bucking or boosting exciter in series with the field 6 fed from a constant voltage source, the field 8 appropriately opposing or assisting the field 7. To prevent a reversal of polarity of the field 6 a rectifier 17 is inserted in series, and may be shunted by a resistance to permit a weak reverse field. Torque may be maintained at standstill by an additional generator 19 connected in parallel, or, as shown, in series with the generator 1. In a modification, Fig. 3, the generator 1 is driven with the exciter 9, and its field 2 is supplied from an exciter 22 driven by the mill. A weak series field winding 27 on the generator may oppose the field 2 and act as a " suicide " winding. The standstill torque may be obtained by providing an additional field 24 on the generator 1. Where the mill motor is controlled by the Ward- Leonard system, the reel motor 4 may be supplied from the Ward-Leonard generator. A separately excited field winding may be provided on the motor 4. Specification 432,169, [Group XVI], is referred to.
Patent GB-196811-A (GB)
Title: Improvements relating to baking tins
IPC: A21B3/13
Filed: 1922-04-24
Abstract: 196,811. Bergougnoux, E. C. April 24, 1922. Baking-tins. - Baking-tins of the kind comprising an expansible wall formed with a groove for housing a loose bottom have the beading a<1> of the walls not completely closed but of channel form so that the plain edge a<2> of the overlapping end engages slidingly within the channelled portion. One or both beaded edges are preferably provided with spring wires tending to keep the band expanded. The rim of the loose bottom is of conical form widening upwardly and fits under the groove b, resting on the inside of the lower beaded part. The manipulating lever d consists of a metal stamping having a stamped-out tongue d' to carry the link e.
Patent GB-194965-A (GB)
Title: Improvements in and relating to door wedges or the like
IPC: E05C17/54
Filed: 1922-04-24
Abstract: 194,965. Keyte, T. S. April 24. 1922. Wedges.-Relates to door wedges of the kind comprising a wedge 1 and a screw 3 formed with a knob and a point 5 beyond a shoulder 6, whereby when the screw is turned the point grips the floor or floor covering 8 while the shoulder presses on the floor and causes the wedge to be lifted and tightened against the door 7. According to the invention, the wedge 1 is made of wood solid throughout except for the screw hole. The screw is also preferably made of wood, but with a metal point 5. The screw may, however, be made wholly of wood.
Patent GB-458897-A (GB)
Title: Improvements in springing arrangements for vehicles
IPC: B60G11/20
Filed: 1936-04-22
Abstract: 458,897. Vehicle spring - suspensions. PORSCHE GES., DR. ING. H.C.F., 24, Kronenstrasse, Stuttgart, Germany. April 22, 1936, No. 11524. Convention date, May 18, 1935. [Class 108 (ii)] of In. vehicle suspensions in which the wheel is carried by a pair of links each coupled to a torsion spring the journals of the links are mounted so as to be capable of yielding axially to absorb side thrust on the wheels. As shown the wheel 2 is carried by a pair of links 15, 16 having journals 23, 24 mounted in. transverse tubes 58, 58<a>, secured to the chassis. The journals are permitted limited axial and rotary movement in the tubes by means of pins or studs 39<1>, 40 and the ends of torsion springs 41, 42 are secured to the journals, the springs being anchored to the tubes. Side thrust on the wheel at road level causes a couple at the journals so that one torsion spring is in tension and the other in compression to damp the shock.
Patent GB-242316-A (GB)
Title: Improvements in and relating to plant for the removal of free fatty acids and other impurities from oils, fats and the like
IPC: C11B3/14
Filed: 1924-05-09
Abstract: 242,316. Lever Bros., Ltd., Craig, R., and Shawfield, C. E. C. May 9, 1924. Fats and fatty oils, purifying; fatty acids, obtaining.-A distilling- plant, particularly applicable for use in the process of refining oils or fats described in Specification 224,928 comprises a distilling vessel a through which oil entering by an inlet b passes by a tortuous path formed by baffles f to an outlet pipe c projecting upwards into the vessel to maintain a definite level. Vapours are withdrawn through condenser x by a pump y which maintains a high vacuum in the vessel a. The oil to be treated passes from a tank 2 to a tank n and is drawn through a submerged cook o and a heat-exchanger r to the vessel a from which it is withdrawn through the outlet pipe c, heat exchanger r, and a cooler s, by a submerged pump u. The vessel a is constructed of a non-corrosive alloy such as an alloy containing 92.5 per cent of aluminium, 4 per cent of copper, 2 per cent of nickel and 1.5 per cent of magnesium. Steam is injected into the compartments formed by the baffles f through perforated pipes k. The vessel a is heated by gas burners m to about 220-300‹ C. In a modified form, the vessel a consists of a vertical cylindrical vessel containing cylindrical baffle plates and a radial baffle so as to form tortuous passage for the oil. To prevent inward leakage of air, the joints in the apparatus may be formed with grooves supplied with steam under a pressure of about two atmospheres.
Patent GB-149406-A (GB)
Title: Improvements in sound-recording and sound-reproducing instruments or machines
IPC: G11B3/00
Filed: 1919-05-08
Abstract: 149,406. Kay, M., and Wright, E. J. May 8, 1919. Sound magnifying and directing appliances.- The horn c of a gramophone is of rectangular or like cross-section, and is provided with apertures t in its sides, which may be connected by struts. An adjustable shutter or roller blind v regulates the opening of the horn mouth.