baber/WOPTO huggingface dataset:
Patent GB-164148-A (GB)
Title: Improvements in or relating to arrangements for detecting and utilising vibratory movements
IPC: H01H51/32
Filed: 1920-03-06
Abstract: 164,148. Automatic Telephone Manufacturing Co., Ltd., and Smith, S. R. March 6, 1920. Addition to 138,966. Vibrations, indicating, recording and registering - Modifications in the arrangement described in the parent Specification for converting minute vibratory movements into a continuous movement comprise an indicator or relay for giving a visual indication or closing a contact, and remaining operated until re-set ; a relay in which a circuit-closing device responsive to the vibratorv movements causes the closure of a device such as a slow-acting relay and which is de-energized when the vibratory movement ceases; and means for converting high-frequency alternating-current signals into direct-current signals capable of operating a sounder. The catgut thread 5, Fig. 1, attached to the reed 1 pivoted at the centre of the coil 4 through which the vibratory current passes causes uni-directional motion of the drum 6. Two arms 16 pivoted at 37 carry an indicator 17 and a pivoted connecting rod 18 to which is attached a member 19 which is normally held up by the drum 6. The rotation of the drum due to the passage of a vibratory current through the coil 4 frees the arms 16 which drop, causing the indicator 17 to be visible through the opening 26 and the rod 18 to depress the plunger 29 to make contact between the springs 30, 31. The indicator arm is restored to operating position by means of a spring-controlled plunger 36 which engages the face plate 33 of an arm 32 attached to the arm 16, the member 19 being brought into correct position for engagement with the drum 6 by a spring 20 which rotates the mem. ber until a rod 22 engages the stop 23 on the arm. In the arrangement shown in Figs. 3 and 4 the cylindrical drum 41 carries a wheel 52 with projections 53 which cause intermittent contacts between springs 54, 55 when the drum is rotated, thus closing the circuit of a slow-release relay 57 which causes the closure of a circuit through a bell 82 and the left-hand contact 76 of the switch 61. The drum 41 also carries two metallic rings 46. 47 preferably of platinum against which press two light adjustable spring contacts 48, 49 also of platinum. The drum responds to alternating current signals received from the line L<1>, L<2> and changes in resistance of the contacts. 46, 48 and 47, 49 due to motion of the drum cause current variations in a circuit from the battery 37 through the right-hand contact 83 of the switch 61 to the sounder 84 which responds to the signals in the usual manner. The relay instruments may be located under a cover fitted by a bayonet joint to the ring 62.
Patent GB-998599-A (GB)
Title: Developers for latent electrostatic images
IPC: G03G9/135
Filed: 1962-02-22
Abstract: Silicone alkyd resin is mixed in turpentine with a particulate material such as alumina hydrate, magnesium or barium carbonate, talc, plaster of Paris or silica and the mixture is dispersed in an aliphatic hydrocarbon liquid so that the particles are coated with the resin.
Patent GB-125242-A (GB)
Title: Improvements in and relating to Elastic Fluid Turbines.
IPC: F01D11/00
Filed: 1918-04-25
Abstract: 125,242. British Thomson - Houston Co., (General Electric Co.). April 25, 1918. Rotors. - In a turbine comprising a number of bucket wheels 2 spaced along a shaft 1 with nozzle diaphragms 5 between them, in order to allow for the differential expansion under heat of the wheels hubs and the shaft and to maintain the correct spacing of the wheels along the shaft, spacing bushings 9 are mounted on the shaft between the wheel hubs and co-operate with the stationary diaphragms, the bushings being formed with annular grooves 8 so as to be flexible in an axial direction. Specification 13367/14 is referred to
Patent GB-267925-A (GB)
Title: Improvements in the manufacture and production of aldehydes
IPC: C07C45/49
Filed: 1927-03-14
Abstract: 267,925. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 14, 1927. Aldehydes are prepared by treating vapourized carboxylic acids in the presence of a hydrogenating catalyst with carbon monoxide or gas mixtures containing carbon monoxide. Mixtures of hydrogenation catalysts may be used and activating elements or compounds may be present. The temperature ranges from 200‹ to 550‹ C., and piessure may be employed. The process may be effected in a circulating system. According to the examples, (1) benzaldehyde is obtained when benzoic acid vapour mixed with carbon monoxide is passed over an iron catalyst; (2) carbon monoxide and acetic acid vapour, passed over a mixture of cobalt and iron, yield acetaldehyde; (3) benzaldehyde is also produced by passing a mixture of carbon monoxide, nitrogen and benzoic acid vapour over a catalyst prepared by reducing an intimate mixture of chromium and iron oxides, or by leading a mixture of carbon monoxide, nitrogen and water vapour with benzoic acid vapour over a catalyst containing cerium, chromium and iron; 'producer gas or blast furnace gas may be used in the former process and the nitrogen replaced by carbon dioxide in the latter.
Patent GB-279699-A (GB)
Title: Improvements in and relating to cotton coilers for cardroom machinery
IPC: B65H54/80
Filed: 1927-03-14
Abstract: 279,699. Knight, A. F., and Cosmos imperial Mills, Ltd. March 14, 1927. Sliver conductors.- The passage 10 through the plate 8 of the coiler top is made of a diminishing cross-section from top to bottom, the outlet being restricted in size and merging into the bottom face of the plate 8 over a smooth, convex edge 13. A liner 11 of the requisite formation may be inserted in the usual passage.
Patent GB-326345-A (GB)
Title: A new or improved needle container for gramophones and like instruments
IPC: G11B3/54
Filed: 1929-03-05
Abstract: 326,345. Balcombe, Ltd., A. J., and Hill, W. J. March 5, 1929. Drawer-and-shell boxes; lids, opening.-A box or container for gramophone needles comprises a sliding drawer d normally held within a shell or casing m. by a spring s and carrying a hinged lid i which is automatically lifted, when the drawer is pulled open, by a spring l, the lid i then engaging the end of the casing and the spring 1 holding it in that position to retain the drawer in the open position against the action of the spring s. The casing is formed with apertured lugs p by means of which it may be fixed in the gramophone casing or cabinet. The drawer and casing may be bent or pressed from sheet metal blanks and the drawer may be fitted with a troughshaped member c.
Patent GB-548964-A (GB)
Title: Appliance for relieving ropes, cables and cords from the effects of sudden changes in tensile loading
IPC: B64F1/14
Filed: 1941-10-13
Abstract: 548,964. Resilient shackles. METALASTIK, Ltd., and GOLDSCHMIDT, M. Oct. 13, 1941, No. 7107/42. Divided out of 548,938. [Class 108 (iii)] An elastic tension connection includes a rubber tension spring enclosed in separable hollow shells each having an integral connection member by which the shells transmit the load. The telescopic shells 41,42 are connected to the pins 45,46 respectively and are slotted as at 54, 55 to allow relative movement of the other pin. The shells may be in two parts welded together and integral with attachment eyes 43, 44. The pins are connected by the rubber tension members 40. Specification 548,938 is referred to.
Patent GB-1427039-A (GB)
Title: Automatic clutch mechanism
IPC: B60W30/18
Filed: 1973-02-14
Abstract: 1427039 Clutch control AUTOMOBILES M BERLIET 14 Feb 1973 [18 Feb 1972] 7184/73 Heading F2L A clutch control system for the control of a motor vehicle friction clutch II through hydraulic means 24 (or alternatively pneumatic means 25) to close the clutch 11 at a rate proportional to the rate of rotation of the engine, and also dependent on the rate of acceleration of the engine and speed of the vehicle comprises sensors 1, 2 and 3 which detect as electrical frequencies the engine speed, gear-box III input speed and transmission IV speed, respectively. These frequencies are converted to voltages by circuits 4, 5, and 6, respectively. A further circuit 7 evaluates the change in engine I speed, dN/dt where N is engine speed, which is a measure of the intentions of the operator, it being dependent on accelerator VII position and a circuit 11 computes #N, a voltage dependent on the difference in speed between the input and output members of clutch II, which is the difference in the outputs of circuits 4 and 5. The closing of the clutch II for starting the vehicle is by a signal where N 0  is the lowest operational speed of the engine and (Vv), evaluated by circuit 8, is a value computed from that detected by sensor 3, which is proportional to vehicle speed, and is zero for very low speeds but increases above a threshold value of speed to hasten the closing of the clutch II as the vehicle gains speed. The value E, which controls the rate of closing of the clutch, is computed by a circuit 9 and controls the clutch via a correction circuit 10 and a summation circuit 19 which in turn controls an electrovalve 22 or 23 to close the clutch. The signal #N controls a servomotor via electrovalves 12 and 13 to inhibit the action of the driver of the vehicle to reduce #N, and so clutch slip. When the vehicle has attained a speed of V 3 , at which point the starting function is not required, i.e. (Vv)> V 3  as detected by a circuit 15, a switch 16 in circuit 10 moves to remove the control of circuit 9 over the clutch and the clutch is now opened when a gear-change is made, which change causes an inverting device 18 to be switched over to allow a capacitor 26 to be charged by the voltage #N and to supply a signal to the circuit 10 to open the clutch. On completion of the gear-change, the device 18 switches back and the charge on capacitor 26 controls, in conjunction with the vehicle speed Vv, the rate of clutch closure, the latter increasing this rate through a circuit 17 which increases the rate of capacitor discharge, and the former decreasing the rate of closure in proportion to the clutch slip. The value #N also inhibits the action of the vehicle operator via the means 20 during the gear-change.
Patent GB-1130127-A (GB)
Title: Process for the removal of hydrogen sulphide from carbon dioxide and gas mixtures containing carbon dioxide
IPC: C01B32/50
Filed: 1967-02-15
Abstract: 1,130,127. Purifying carbon dioxide. LINDE A.G. 15 Feb., 1967 [17 Feb., 1966], No. 7210/67. Heading C1A. Hydrogen sulphide is removed from carbon dioxide, or a gas mixture containing carbon dioxide, by scrubbing the gas with an aqueous solution of hydrogen peroxide. Preferably the concentration of hydrogen peroxide is 1 to 30% by weight (3 to 8% being particularly preferred) and alkali, e.g. sodium carbonate or bicarbonate, is added to the starting solution in approximately 10% excess of the quantity required to neutralize the sulphuric acid formed by the process. The scrubbing temperature lies preferably between ambient temperature and the freezing point of the solution, but may be higher. Scrubbing pressure may be atmospheric or superatmospheric.
Patent GB-1508952-A (GB)
Title: Radar receiver
IPC: G01S7/292
Filed: 1976-02-24
Abstract: 1508952 Pulse radar STANDARD TELEPHONES & CABLES Ltd 24 Feb 1976 07210/76 Heading H4D A receiver for a pulse radar system which reduces ground reflection interference at low elevations comprises range gate controlled means for simultaneously sampling the return signal distribution across a predetermined portion of the receiving aperture, means for combining said samples to produce a coherent signal waveform corresponding to a time scan of the return signal distribution across said predetermined portion and having a signal spectrum which is representative of the aperture distribution, and means for filtering said waveform such as to attenuate the dyes of the signal spectrum. The sampling means is a parabolic reflector 1 and six horns 3a-f located at the focal plane 2 and extending on one side of the reflector axis. Pulse transmission is via the top horn or horns coupled to suitable pulse generating equipment (not shown). Each horn is coupled to an RF front end mixer 4 fed from a common local oscillator 5 and the IF signals are amplified via individual amplifiers 6 and applied via range gates 7, simultaneously enabled from a range information control timer 8, to corresponding input taps of a surface acoustic wave delay line 9. The delay between successive inputs equals an integral number of cycles of the mixers' output frequency. Thus the output signal from delay line 9 is an apparent scan of part of the focal plane 2 and its spectrum is a solid representation of the aperture distribution. The signal is effectively coherent and is said to be "time gated", because the position of the top horn fixes the extent of angular coverage. This signal is amplified at 10 and filtered by a surface acoustic wave transversal filter 11 such that the edges of the signal spectrum are attenuated. Compare Fig. 2 (not shown), where the wanted signal is not significantly affected by the sector/ time gate and Fig. 3, (not shown), where the unwanted signal is inhibited subsequent to filter 11 there is an amplifier 12, down conversion at a second mixer 13 coupled to a second seal oscillator 14 to a second IF and further amplification in an IF strip 15 with sensitivity time control applied. The signal is detected at 16 and the time of peak response with respect to the range gate applied at the inputs of the delay line is measured by a beam threshold and timing circuit 17. MTI may be included in the second IF chain. The delay line and associated circuitry may be replaced by multiple zero IF receivers yielding cosine (I) and sine (Q) values for the signal from each horn, and where an apparent scan of the focal plane is formed by analogue muliplexing of the I and Q signals, a pair from each receiver. This arrangement is fully described in Specification 1,493,732. The description of the invention is concerned with a fixed pointing angle at low elevation, but reference is made also to a movable pointing angle over the rest of the coverage sector.
Patent GB-292237-A (GB)
Title: An improved method and apparatus for preparing cream fondant and the like
IPC: A23G3/14
Filed: 1927-03-15
Abstract: 292,237. Head, R., Clay, C., Baker Perkins, Ltd., and Soc. Anon. Anciens Etablissements A. Savy Jeanjean et Cie. March 15, 1927. Drawings to Specification. Confectionery. - A continuous method of preparing cream fondant and the like is characterized in that sugar syrup or the like is continuously cooked, cooled and passed through a beater or beaters into which, or any of which, is introduced a predetermined quantity of cooked or heated diluting syrup, the fondant mass and additional syrup then being further beaten or mixed. Glucose, albumen, colouring or flavouring matter may be introduced either into the diluting syrup or into the beaters. Apparatus for carrying out the process may consist of an automatic cooker, a cooling drum, which discharges into a beater or beaters, means for introducing diluting syrup into the beater or beaters, either through a heater from the main cooker, or from a small auxiliary cooker, and an additional beater, having a tempering-jacket, for the mixture of diluting syrup and partially formed fondant.
Patent GB-551850-A (GB)
Title: Grinding taps for use in cutting screw-threads
IPC: B24B3/18
Filed: 1942-05-29
Abstract: 551,850. Grinding screw cutting taps. AUTO MACHINERY CO., Ltd., and LEEDHAM, B. May 29, 1942, No. 7293. [Class 60] [Also in Group XXII] Screw cutting taps have spiral flutes, with a pitch about that of a twist drill, to enable them to be produced or finish ground in a centreless grinding machine. The blank may be formed with a pilot at its smaller end by which it may be re-inserted in the machine in the reversed position to improve the accuracy of the finished thread.
Patent GB-478159-A (GB)
Title: A process of grinding cereals by stages and a roller mill therefor
IPC: B02C4/42
Filed: 1937-03-12
Abstract: 478,159. Roller mills. TEICHMANN, A. March 12, 1937, No. 7307. Convention date, Jan. 8. [Class 59] Wheat &c. is ground into flour in a roller mill having a pair of rollers, the speed of which may be varied in accordance with the grinding operation in progress, such as cracking, disintegrating, &c., the velocity ratio of the rollers being variable approximately from 1À3 to 1 : 10. As shown, the shaft 1 of the driven roller has a pulley 2 keyed thereon which drives a pulley 4 of a variable-speed gear 5, the drive pulley 7 of which drives a pulley 10 rotatably mounted by a sleeve 11 on the sleeve 9 of the pulley 2. A pinion 12 on the sleeve 11 drives a gear-wheel 13 mounted on the shaft of the slow running roller whereby the speed ratios may be varied between 1 : 3 and 1 : 10. Planet gear, conical-drum gear, stepped pulley gear, &c. may provide the change speed gear or the slow roll may be driven independently by a variable-speed motor. Two sets of mills may be used, each performing part of the process.
Patent GB-110316-A (GB)
Title: Improvements in Friction Clutches.
Inventor: PLEYTE LOURUS
IPC: F16D13/00
Filed: 1917-05-22
Abstract: 110,316. Pleyte, L. May 22, 1917. Clutches, friction. - In combined cone and expanding-band clutches, the band is operated by adjustable toggle-levers, which are moved over their dead-centres to enable the cone clutch to be subsequently applied. The cone 6 is carried by the operating- collar 7 which is adjustably secured by a bolt 25 to a built-up frame 26, 28 sliding in a sleeve 14 keyed to the shaft 2. The expanding band 13 is secured by a key 19 to a ring 18 on the sleeve 14 and is operated by a pair of toggle-levers 33 pivoted on eccentric portions' 31, 32 of a spindle 30 carried in the frame 26, 28. Pins 35 on the levers 33 slide in slots 36 in the ring 18. When the collar 7 is moved to the left, the toggle-levers first bring the band into clutching engagement and then move over their dead-centres and allow the cone 6 to be engaged with a cone 5 on the shaft 1. Adjustment of the toggle-levers is provided by the use of the bolt 25 and bv rotating the spindle 30 by means of a worm-wheel 38, worm 39, wormshaft 40, and adjustable lever 43. A spring-ring 52 prevents oil, admitted through a plug 51, from reaching the cones.
Patent GB-1181484-A (GB)
Title: A Process for Producing a Dry Enzyme or Protein Preparation.
Inventor: SCHOEPFEL DIETMAR
IPC: C12N9/28
Filed: 1968-02-15
Abstract: 1,181,484. Precipitating protein. FORSCHUNGSINSTITUT FUER DIE GAERUNGSINDUSTRIE ENZYMOLOGIE UND TECHNISCHE MIKROBIOLOGIE. 15 Feb., 1968, No. 7388/68. Heading C3H. In a process for producing a dry enzyme or protein preparation having a low salt content, precipitation from an albumen-containing culture solution or culture filtrate is carried out with an anionic, cationic or amphoteric synthetic organic tanning agent and subsequent extraction of inorganic salts and excess tanning agent takes place using water or mixtures of water and an organic solvent. The "syntans" may be condensation products of phenols with phenol carboxylic acids, phenol sulphonic acids, phenol sulphonamides, ligninsulphonic acids and aromatic amines, or condensates of polyols (including sugars) with aliphatic oxy- and/or amino acids. The precipitate may be filtered and washed with water and/or alcohols, ketones, glycol ethers, dioxan or tetrahydrofuran. In examples, protease and amylase are precipitated.
Patent GB-982017-A (GB)
Title: Improvements in or relating to the evaporation of liquid films
IPC: B01D1/12
Filed: 1962-02-26
Abstract: 982,017. Evaporating liquid in film-form; distilling sea water. GENERAL ELECTRIC CO. Feb. 26, 1962 [Feb. 28, 1961], No. 7391/62. Addition to 967,929. Heading B1B. Liquid such as sea water is evaporated by passing it in the form of a film down the inner surface of heat-exchange members 4, which are surrounded by a heating-jacket 5, the members 4 being designed so that the cross-sectional area of the vapour-passage 42 increases in the direction of flow whereby the vapour-velocity is maintained at an approximately constant value as it passes through the passage. The concentrated liquid which collects in sump 15 may be withdrawn through conduit 30 or it may be recirculated through conduit 18, together with fresh feed introduced through conduit 16, to chamber 13 which distributes the liquid to the heat-exchange members. Part of the steam, discharged from the lower ends of heat-exchange members, may be passed via conduits 23 and 24 to a compressor (not shown), and the compressed steam is then introduced through inlet 6 into jacket 5 for use as heating-medium, the condensate, i.e potable water, being withdrawn through outlet 7. The outside surfaces 41 and 41<SP>1</SP> of heat-exchange members 4 have drainage grooves in order to increase the efficiency of steam-condensation. Part of the steam from the lower chamber may be passed, via compressor 27 and conduit 29, to chamber 13 so that it flows down inside the members 4, and assists in maintaining a thin film of liquid on the inner surface of the members. In place of the heat-exchange members shown in Fig. 2, there may be employed cylindrical tubes in which are mounted conical baffles which taper in a downward direction. The outer surface of the tubes may be treated with a chemical to promote dropwise condensation.
Patent GB-550590-A (GB)
Title: Improvements in power transmission by dynamo-electric machines
IPC: H02K49/06
Filed: 1941-06-11
Abstract: 550,590. Transmitting mechanical power. ENGLISH ELECTRIC CO., Ltd., and CARNEGIE, H. S. June 11, 1941, No. 7397. [Class 38 (iv)] An electromagnetic coupling, of the kind in which torque is transmitted by the electromagnetic interaction between a field system and a secondary system in which the field induces current during continuous slip, is combined with a dynamo-electric generator and a motor element whereby the rotation of the output shaft may be reversed with or without changes in speed ratio. Fig. 1 shows a shaft 1 carrying two field elements 5, 7 the first forming with a secondary element 6 on a shaft 2 an electromagnetic coupling and the second co-operating with a stator 8 to form an alternator supplying current to a motor stator 10 co-operating with a rotor 11 on the shaft 2. Various structural arrangements of the elements 7, 8, 10, 11 are possible and the motor or generator may constitute separate machines in driving association with the shafts. The electrical control comprises primarily a switch 13 for selective energization of the field elements and may comprise a switch 15 whereby in successive positions (1) a forward drive, (2) braking by application of D.C. to the .motor stator, and (3) reverse drive are obtained. A pole changing switch 17 may give a change of speed. Other methods of braking may be used. The generator may be a synchronous alternator and the motor an induction motor or synchronous-induction motor.