baber/WOPTO huggingface dataset:
Patent GB-266648-A (GB)
Title: An improved game apparatus
IPC: A63F7/00
Filed: 1926-12-02
Abstract: 266,648. Barley, G. F. Dec. 2, 1926. Table games.-A structure 3 is mounted at one end of a board 1 and is provided with apertures 19 through which a ball may be rolled to release one or more models 8, such as fire-engines or lifeboats, and allow them to run down guideways 7. The ball on passing through an aperture depresses a pivoted rod 18 and withdraws the upper end 10 of a vertical rod 11 from engagement with the under-part of the model 8. The ball passes through a hole 18 and the rod 14 is moved in the reverse direction by a spring 21 until contacts 22, 23 in the circuit of a bell 24 are closed.
Patent GB-374759-A (GB)
Title: Improvements in and relating to jigger conveyors
IPC: B65G27/00
Filed: 1931-11-04
Abstract: 374,759. Jigging conveyers. RIDGILL, E., Dronfield, Sheffield. Nov. 4, 1931, No. 30564. Addition to 362,264. [Class 78 (i).] The coupling described in the parent Specification is modified by disposing the ratchet teeth 16 around the periphery of the nut extension 4, and mounting the detent 17 radially. The outer end of the extension 4 is received within an elongated hole 11 in the boss 12 of the bracket 8, and can rise and fall slightly in order to accommodate itself to the position of the bolt 13.
Patent GB-445367-A (GB)
Title: Improvements in nozzles for suction cleaners
IPC: A47L9/06
Filed: 1934-10-25
Abstract: 445,367. Suction nozzles. ELECTROLUX, Ltd., Luton, Bedfordshire.-(Assignees of Inventia Patent-Verwertungs-Ges.; 10, Herrenacker, Schaffhausen, Switzerland) Oct. 25, 1934, No. 30626. Convention date, Nov. 8, 1933. [Class 8 (i)] In a brush nozzle for vacuum cleaners with a flexible tubular support 13 disposed within the brush rim the material of edge of the support is reinforced so that it retains its shape under the suction. The tubular support 13 may be of rubber and the edge 16 vulcanized relatively hard, or a wire frame 18 may be inserted or moulded therein in the course of manufacture.
Patent GB-1491923-A (GB)
Title: Driverless industrial trucks
IPC: G05D1/02
Filed: 1975-07-22
Abstract: 1491923 Steering vehicles ERNST WAGNER KG 22 July 1975 [24 July 1974] 30642/75 Heading B7H [Also in Division G3] In a driverless fork-lift truck having one or more front wheels 1 steered by a motor 2 and a sensing device 9 immovably mounted on the rear of the truck to be used when the truck is travelling in reverse for sensing deviation of the truck from a predetermined path defined by a guide wire 14, there are provided means which compare the steering angle of the wheel 1 with the sensed deviation from the guide wire and control operation of the motor 2 so that the steering angle has a predetermined correspondence in magnitude and direction to the deviation. The sensing device 9 comprises two scanning coils 10, 11 arranged so that there is a voltage difference between their outputs when the guide wire 14 is not equi-distantly located between the coils. The coils 10, 11 are connected through amplifiers 12 to a differential amplifier 8 which also has an input from the slider of a potentiometer 15 which is linked to the steerable wheel 1 to provide a voltage signal representing the steering angle of the wheel. As shown in Fig. 3 voltages U1, U2 of opposite polarity obtained from the coils 10, 11 through the amplifiers 12 are applied to resistances R1, R2 to give a voltage which represents the deviation from the guide wire 14 and is fed to the inverting input of an amplifier 16 having a high impedance input and a low impedance output. The amplifier 16 has a feedback resistor 16 and a non-inverting input connected to the slider of the potentiometer 15. The output of the amplifier 16 is connected to a pulse width converter 17 to control operation of the steering motor 2. In another embodiment, Fig. 1 (not shown), the output from the scanning coils is connected to a differential amplifier through ganged potentiometers which are linked to the steerable wheel so that the voltage difference between the outputs is cancelled out when the steering angle and the deviation from the guide wire are in the predetermined correspondence. The steering angle feedback may be applied directly to the scanning coils each of which is provided with a second winding connected to a steering angle potentiometer and arranged to oppose the voltage induced in the scanning coil.
Patent GB-796361-A (GB)
Title: Improvements in or relating to production of trichlorobenzoic acid
IPC: C07C51/27
Filed: 1955-10-27
Abstract: Trichlorobenzoic acids are produced by the action of nitric acid of less than 90 per cent concentration on the corresponding trichlorobenzyl or benzal chlorides or bromides.  The concentration of nitric acid is preferably 60-85 per cent and the temperature at least 95 DEG  C., and finely-divided inert material (e.g. fuller's earth) and catalysts (e.g. iodine) may be added. Tables are given of the conversion of mixed isomeric trichlorobenzyl and trichlorobenzal chlorides and bromides, with nitric acid of 70-90 per cent and varying conditions, to give isomeric mixtures of 2 : 3 : 6-, 2 : 3 : 4-, 2 : 3 : 5-, 2 : 4 : 5-, and 2 : 4 : 6-trichlorobenzoic acid, the 2 : 3 : 6- and 2 : 4 : 5- in major proportion.  Starting materials. Trichloro - benzyl and -benzal chlorides and bromides are prepared by side-chain halogenation of trichlorotoluenes.  The mono- and di-chlorination of an isomeric mixture of trichlorotoluenes are described in detail.  The corresponding dibromination is effected with ultra-violet irradiation.
Patent GB-247521-A (GB)
Title: Trigger arrangement for coupled machine-guns or the like
IPC: F41A19/08
Filed: 1925-12-07
Abstract: 247,521. Aktieselskabet Dansk Rekylriffel Syndikat. Feb. 10, 1925, [Convention date]. Machine guns.-A number of coupledtogether machine guns or the like, especially for use on aircraft, are provided with trigger-actuating mechanism such that all the triggers can be operated together or independently. As shown, the stocks a, b of two machine guns are coupled by a cross-piece c, the guns being mounted on a suitable movable support. The trigger-operating mechanism comprises a lever f, g mounted on the right-hand gun, adapted to operate the trigger d of the righthand gun directly, by means of a transverse roller j, and the trigger of the other gun through a Bowden cable h.
Patent GB-234006-A (GB)
Title: Improvements in and relating to motor driven railway and the like vehicles
IPC: B61F5/48
Filed: 1924-12-23
Abstract: 234,006. Buchli, J. Dec. 23, 1924. Motors, mounting or supporting; compound or articulated railway motor-cars; electric railway cars. - In a vehicle having a long wheelbase carried by two radiating axles, the axles are driven from and given steering adjustments by a guiding bogie carrying a motor and capable of lateral movement relatively to the vehicle body. In the construction shown in Figs. 1 and 2, the vehicle body e is supported by two centrally pivoted axles a which are driven by electric motors c carried on a bogie f, the motors driving the axles through universal joints and longitudinal shafts enclosed in casings b, by means of which the lateral movements of the bogie f on curves adjust the driving axles radially. This movement of the axles is permitted by means of swinging links connecting the ends of the springs with the main frame. In a modification, two motors, one driving each axle, are carried on independent two-wheel trucks. The centres of the springs are then attached to the axle casing at points lying between the axles and the motor-carrying bogies. In a further modification, shown in Fig. 3, the body is made in two parts, each part being carried by one pivot on its driving axle and by another pivot on the bogie.
Patent GB-1317464-A (GB)
Title: Hydrogenation of adiponitrile
IPC: B01J23/00
Filed: 1970-06-25
Abstract: 1317464 Hexamethylene diamine E I DU PONT DE NEMOURS & CO 25 June 1970 [11 July 1969] 30951/70 Heading C2C Hexamethylene diamine is formed by feeding adiponitrile, ammonia and hydrogen in the super-critical vapour phase to a reactor operating at 100-200‹ C. and at superatmospheric pressure and containing a granular catalyst comprising an iron compound which has been activated by contact with hydrogen at a temperature not above 600‹ C. and which is capable of being reduced to elemental iron under the conditions of the catalytic hydrogenation reaction.
Patent GB-244462-A (GB)
Title: The manufacture of new anthraquinone derivatives
Filed: 1925-12-08
Abstract: The condensation of formaldehyde or a substance which yields it with 4-substituted-1-aminoanthraquinones or their derivatives in the presence of an acid condensing agent is carried out to a stage such that the products are not decomposed into their components by the the action of water or dilute acids; the same products may be obtained by further condensing, for example by the action of sulphuric acid, the known compounds from 4-substituted-1-aminoanthraquinones and formaldehyde in which the latter is only loosely combined.  Two series of compounds can be obtained, namely, Series I by using 1 mol. formaldehyde to 1 mol. anthraquinone derivative, and Series II by using 2 or more mols. formaldehyde to 1 mol. anthraquinone derivative: the compounds of Series II upon treatment with oxidizing agents such as manganese dioxide in sulphuric acid or even with the acid itself are converted into others from which 1 mol. formaldehyde can be readily split off leaving compounds of Series I.  The parent Q 1-aminoanthraquinone derivatives may be alkylated or aralkylated in one or more amino groups.  As condensing agents may be employed aqueous sulphuric acid, mixtures of glacial acetic and hydrochloric, sulphuric, or phosphoric acids, phosphoric acid, phosphorus oxychloride, aluminium chloride and the like; when sulphuric acid alone is employed it must be of 65-85 per cent strength.  The production of the following compounds is described in examples:-(1) compounds of Series I or II and mixtures thereof from 1 : 4-amino-oxyanthraquinone and paraformaldehyde in presence of diluted sulphuric acid, a mixture of acetic acid and sulphuric or phosphoric acid, or sulphuric acid and boric acid; (2) a compound of Series II by action of phosphorus oxychloride on 1 : 4-amino-oxyanthraquinone suspended in formaldehyde solution; (3) compounds of Series I or II from 1 : 4-diaminoanthraquinone or 1 : 4-methoxyaminoanthraquinone and trioxymethylene or paraformaldehyde in sulphuric acid; (4) compounds or Series I by oxidizing the compounds of Series II obtained from 1 : 4-amino-oxyanthraquinone with sulphuric acid, or manganese dioxide and sulphuric acid, and eliminating formaldehyde by washing with water.  In place of formaldehyde, paraformaldehyde, or trioxymethylene may be used methylene diacetate, methylal, or formaldehyde-bisulphite.  The compounds obtained from 1 : 4-amino-oxyanthraquinone or 1 : 4-aminomethoxyanthraquinone dye cotton from a violet hydrosulphite vat in bluish grey to black shades.  Specifications 22128/01 and 4648/11 are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the condensation with formaldehyde, or substances which yield it, of 1-aminoanthraquinone and its derivatives in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-1507227-A (GB)
Title: Process for producing copper base alloys
IPC: C22F1/08
Filed: 1975-07-24
Abstract: 1507227 Copper alloy OLIN CORP 24 July 1975 [30 Aug 1974] 31013/75 Heading C7A [Also in Division B3]  A method of making copper alloy workpieces, e.g. strip, sheet, rod or wire, comprises using as a starting material a copper alloy which has been hot worked to reduction of thickness of at least 50%, the thickness being 0.200"-0.750", annealing the starting material at 40%-70% of its melting temperature for 1-24 hours and cold working it. The starting material is a cast ingot which has been hot rolled and is an alloy containing 2.5%-3.1% Al, 1.5%-2.1% Si, 0.25%-0.55% Co balance Cu. Hot rolling is performed at 800 -920‹C, preferably 850 - 900‹C, and internal cracking occurs. Dissolved hydrogen in the alloy diffuses in these cracks and a hot working reduction of 75%-95% is preferred to reduce the number of cracks. Annealing diffuses the hydrogen from the material and the minimum thickness of 0.200" ensures that the material is able to resist the expansion of the cracks from the pressure of the hydrogen. Annealing is preferably carried out in a conventional reducing atmosphere. The final cold working comprises rolling to a reduction of at least 60%, preferably 75% to weld together the internal defects or to a reduction of 40% followed by further annealing.
Patent GB-1167544-A (GB)
Title: Purification of Nickel-Titanium Alloys
Inventor: BUEHLER WILLIAM JAMES
IPC: B22C1/00
Filed: 1966-09-28
Abstract: 1,167,544. Purifying nickel-titanium. W.J. BUEHLER. Sept. 28, 1966 [Oct.7, 1965], No. 31035/67. Divided out of 1, 167, 543. Heading C7D. Nickel-titanium alloy is purified by contacting the molten alloy under vacuum with carbon, e. g. by melting in a graphite crucible or by melting in any container and then adding carbon. Purification may be promoted by adding calcium or magnesium metal to the melt or by bubbling hydrogen through the melt. The treatment of alloys composed of Ni 50-70%/Ti remainder is specified.
Patent GB-601287-A (GB)
Title: Improvements in blade-sharpening attachments for lawn mowers
IPC: B24B3/42
Filed: 1945-11-19
Abstract: 601,287. Sharpening lawn mower blades. CRAIG, J., and EMMETT, A. F. Nov. 19, 1945, No. 31037. [Class 60] A mower blade sharpening attachment of the type which comprises a hone, means for adjustably mounting the hone on the ground plate or bottom blade of the mower in a position to engage the cutting edges of the rotary blades during their rotation, and means for clamping the mounting in a desired position of adjustment along the said bottom blade, comprises a rectangular box-like mounting 3 having a first open-mouth slot 2 for receiving a hone 1 and opening through one face of the mounting, a second open-mouth slot 4 for receiving the mower bottom blade 6 and extending at right-angles to the first slot 2 from a point adjacent the mouth thereof, means 7, 17 for clamping the bottom blade 6 in the second slot 4, means 8 for adjusting the extent to which the hone 1 projects from the first slot 2, and means 9, 10 for clamping the hone in the adjusted position. The bottom plate 6 may be replaced by one of heavier gauge and may be grooved for engagement by a ball 17. For a final trueing of the rotary blades the clamping means 7 is loosened and the mounting moved slowly to and fro along the bottom blade.
Patent GB-793205-A (GB)
Title: A method of preparing olefinically unsaturated chlorinated hydrocarbons
IPC: C07C21/12
Filed: 1955-10-31
Abstract: Trichloroethylene and/or perchloroethylene are obtained in a process which comprises passing a gaseous mixture initially containing chlorine and tetrachloroethane sequentially through at least two catalytic zones, effecting substantially all of the exothermic portion of the conversion in the first of said zones and thereby consuming essentially all of the chlorine in the said first zone and conducting the endothermic dehydrochlorination in the second catalyst zone in the substantial absence of chlorine and while preventing substantial flow of material from said second zone to the first zone. When the primary product is to be trichloroethylene the preparation involves employing up to 0.4 mol. of chlorine per mol. of tetrachloroethane and the temperature of the first zone being between 460-600 DEG  F. and of the second zone between 450-700 DEG  F.  When the primary product is to be perchloroethylene the preparation employs more than 0.4 mol. of chlorine per mol. of tetrachloroethane, the temperature of the first zone being between 450-650 DEG  F. and of the second zone being between 400-500 DEG  F. and from 30-130 DEG F. cooler than the first zone.  As catalysts there may be used barium chloride, strontium chloride, calcium chloride, cadmium chloride, copper chloride, magnesium chloride and other salts of bivalent metals.  The reaction may be effected employing separate catalyst beds contained in an elongated tubular reactor having a diameter of less than 3 inches.  The relative temperature of the two zones may be controlled by transferring heat from the second to the first zone. The retention time in the second zone should be at least 6 seconds.
Patent GB-250497-A (GB)
Title: Improvements in spindles for spinning and twisting machines
IPC: D01H7/04
Filed: 1925-12-09
Abstract: 250,497. Lee, J., and Hattersley & Son, Ltd., J. Dec. 9, 1925. Baths and reservoirs.-In bearings for the spindles of spinning and twisting machines a plug 16, screwed into the bolster 4, carries the footstep 6 and a sleeve 18 forming an oil cap in which the lower end of the spindle 1 extends. Oil is carried up to the journal bearing 5 by a spiral groove 19 on the spindle.
Patent GB-945633-A (GB)
Title: Improvements in or relating to circuits for switching a pulse signal without distortion at any arbitrary moment
IPC: G06F1/10
Filed: 1962-08-14
Abstract: 945,633. Transistor switching circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 14, 1962 [Aug. 17, 1961], No. 31164/62. Heading H3T. In a circuit for switching a pulse signal without distortion at any arbitrary moment, the signal is differentiated at 4, the resulting needle-like pulses corresponding to the leading edges being fed to the 1 inputs of bi-stable circuits FF 1 , FF 2 , whilst the needle-like pulses corresponding to the trailing edges of the signal are fed to the 0 input of FF 1 . A switch S, controlling the output, is provided in the 1 input lead of FF 1 . As described, the bi-stable circuits may be transistorized Eccles-Jordan circuits. Circuit FF 1  provides, at f, a continuous output which is an anti-phased version of the input square wave signal at a. The signal at f is differentiated at 5, the resulting positive needle-like pulses being passed via diode 8 to FF 2  so that anti-phased square wave outputs corresponding to the input at a, are provided at 2 and 3. Switch S is opened when it is desired to terminate the signals at 2 and 3, the last half cycle of the output being maintained without distortion by the action of circuits FF 1 , FF 2 . An inverter J may be provided. A delay circuit V is included to compensate for the delay introduced by details 7, J. Fig. 3 (not shown), relates to a similar arrangement fed from an anti-phased square wave source.
Patent GB-757288-A (GB)
Title: Improvements in or relating to mechanical milking equipment
Inventor: CORDEROY NEEL
IPC: A01J5/04
Filed: 1953-11-19
Abstract: 757,288. Cow-milkers. ALFA-LAVAL CO., Ltd. Nov. 18, 1954 [Nov. 19, 1953; Jan. 18, 1954], Nos. 31167/54 and 31168/54. Divided out of 757,227 and 757,228. Class 84. An operating cover for a milking machine milk receiver is provided with sealing means comprising a resilient sealing ring removably attached to the cover by an integral retaining portion engaging the outer side of the cover proper. Fig. 1 shows a sealing ring 1 with a depending flange engaging the internal wall of the receiver and a portion 1c engaging the outer side of the cover 2. A similar but F-shaped ring is disclosed, the flange engaging the outside of the receiver and the retaining portion being similar to that of Fig. 1. Fig. 3 shows a ring secured to the cover 2 by projecting knobs 7, and again.the ring has a depending external flange. A similar construction with a flange on the cover 2 instead of on the ring, and another with the parts 7 projecting through a depending flange on the cover, are also disclosed. The second Provisional Specification refers to Specifications 757,227 and 757,228.
Patent GB-1487154-A (GB)
Title: Mechanisms for converting linear movement to alternating rotational movement
IPC: E05B65/20
Filed: 1975-07-25
Abstract: 1487154 Linkwork KEELER BRASS CO 25 July 1975 [14 Aug 1974] 31230/75 Heading F2K A mechanism for converting linear movement to alternating part-rotary movement comprises a non-rotary shaft 20 linearly movable in a block 30 between first and second positions (Figs. 6 and 8), and a part-rotary plate 50 formed with pegs 86, 86a which are alternately engaged by a pin 42 transversely slidably carried in the shaft 20 and selectively positioned to project from one or other side by a earn and follower assembly 40 to effect alternate partrotation of the plate 50. A vacuum motor (not shown) or, as shown, a solenoid 22 serves to axially move the shaft in one direction, i.e. from the first to the second position, and a return spring 78 returns the shaft 20 to the first position, the shaft 20 being shifted by the solenoid 22 between the first and second positions to effect alternate clockwise and counterclockwise part-rotation of the plate 50 through each cycle of operation. The plate 50 is pivoted at 64, 66 in the housing block 30 between the cam assembly 40 which comprises a pair of arms 72, 72a pivoted at 68, 70 and 68a, 70a in the block 30. The cycle of operation is as follows: Starting from the position of the mechanism as in Fig. 6, inward movement of the shaft 20 by the solenoid 22 initially moves the pin 42 into contact with the lower peg 86 on plate 50 (Fig. 7) to effectively turn the plate 50 clockwise to the position shown in Fig. 8, which position is positively located by the end of a peripheral slot 76 on the underside of the plate 50, engaging a fixed peg 74 in the block 30. In this position (Fig. 8) a part-circular periphery 88 of the plate 50 rocks and positively locks the lower arm 72 and, via a relieved, i.e. cut-away part-circular portion 92 of its periphery, the plate 50 disengages from, i.e. frees, the upper arm 72a whereby as the spring 78 returns the shaft 20 the pin 42 is transversely, i.e. upwardly cammed through the shaft 20 via a ramp 102, 104 on the lower arm 72, as shown in Fig. 9, such that as the shaft 20 is again inwardly moved by the solenoid the pin 42 now engages the upper peg 86a on plate 50 (Fig. 10, not shown) to now turn the plate 50 anti-clockwise and lock the upper arm 72a whilst disengaging the lower arm 72 (Fig. 11, not shown) such that the spring return movement of the shaft 20 causes the pin 42 to be downwardly cammed by the upper arm ramp 102a, 104a to complete the cycle (Fig. 12, not shown) whereby the mechanism is again at its starting point of Fig. 6. The mechanism may be used to operate doors and locking mechanisms therefore, windows and heating and air conditioning vents &c.
Patent GB-262795-A (GB)
Title: Improved method of decarbonising ferrochrome
IPC: C21C7/00
Filed: 1925-09-03
Abstract: 262,795. Penniman, W. B. D., and Shackelford, E. J. Dec. 11, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Electrode furnaces.-Ferro-chrome is decarbonized in an electric arc furnace preferably of the arc to molten bath type, with or without a bottom electrode, and preferably having two or more symmetrically arranged electrodes. Specifi- .cation 244,413 is referred to.