baber/WOPTO huggingface dataset:
Patent GB-383115-A (GB)
Title: Improvements in and relating to mine roof supports
IPC: E21D11/34
Filed: 1932-01-27
Abstract: 383,115. Mine roof supports. HœSER, A. and WEBER, H. F., 116, Provinzialstrasse, Sprockhovel, Westphalia, Germany. Jan. 27, 1932, No. 2523. [Class 20 (ii).] The horizontal and vertical members of mine roof supports are held together by means of a device formed of two shackle members hinged together, each member being adapted to engage one of the support members. The shackle member b engages the end of the horizontal support d and is hinged to the shackle member a which embraces the upright support c. The shackle a may be formed in two parts joined together by a fastening member e engaging the adjacent lugs on the two parts. The ends of the loop member b are passed through apertures in the sides of the member a and are secured by means of cross pins ; or the apertures may be of keyhole shape to receive thickened parts f of the loop member b, which are retained therein by the narrow portions of the slots g.
Patent GB-1518222-A (GB)
Title: Data transmission method with acknowledgement
IPC: G08C/
Filed: 1976-01-22
Abstract: 1518222 Selective signalling LICENTIA PATENT VERWALTUNGS GmbH 22 Jan 1976 [22 Jan 1975] 02530/76 Heading G4H [Also in Division H4] In a data transmission method, a coherent block is transmitted, the block comprising an instruction (e.g. calling) message and an acknowledgement message these messages having independent address signals but common sync. and data-safeguarding signals. As disclosed, a main station calls movable substations in turn to each send a data message block to the main station which acknowledges receipt of these data messages, the acknowledgement being combined in the same block as the call for the next (or a subsequent) substation. All blocks may have the same length. The instruction message may request other data or a change of location rather than be calling information. A data message may be sent by a substation only after the substation has received a calling message addressed to it, after input of the data and operation of a start button, and the data message to be sent after each calling message addressed to it until receipt of an acknowledgement message.
Patent GB-304918-A (GB)
Title: Improvements in and relating to toilet sets
IPC: A45C11/00
Filed: 1928-01-26
Abstract: 304,918. Elkan, W., (Firma W÷rnlein & Zellhofer Akt.-Ges.). Jan. 26, 1928. No Patent granted (Sealing fee not paid). Cases combined with brushes and mirrors; fittings, internal; cases made by bending sheet material.-A toilet set comprises a strip of flexible material a forming the circumference of an enclosing case and having means, such as a fastener n, by which the two ends of the strip may be secured together to embrace a hair-brush c and a mirror d or a fixed side piece, the backs of which form the ends or sides of the case whilst one end of the strip is connected to a point intermediate the length thereof by a transverse strap k which serves to maintain the strip permanently bent into the form of one half of the case and also to prevent the brush c, from accidentally falling out of the case. As shown, the case is provided with a partition b carrying a loop for a comb but the partition and comb may be dispensed with or a comb may be carried in a loop at the inside face of the fixed side piece which may replace the mirror d. The brush and mirror may be formed with surfaces i, j which abut against beadings g, h along the edges of the strip. Specification 11656/00 is referred to.
Patent GB-946367-A (GB)
Title: Improvements in fuel cells
Inventor: THOMPSON CHARLES EARL
IPC: H01M8/08
Filed: 1962-01-24
Abstract: 946,367. Fuel cells. ESSO RESEARCH & ENGINEERING CO. Jan. 24, 1962, No. 2621/62. Heading H1B. A fuel cell using an acid electrolyte in which the cathode and/or anode has as catalyst a platinum base alloy containing at least 0.003% wt. of Ir. Preferably, the electrodes are porous carbon impregnated with a particulate mixture of the metal catalyst. The fuel, which is fluid is hydrogen, a hydrocarbon or an oxygen substituted hydrocarbon. Fuel is supplied to the anode 3 and oxygen to the cathode 2, both immersed in e.g. aqueous H 2 SO 4  and separated by a membrane 7 that is non- permeable or ion-exchangeable and serves to prevent soluble fuel from pouring. If a non- soluble fuel is used then this membrane may be omitted.
Patent GB-347632-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/38
Filed: 1930-01-25
Abstract: 347,632. Knitting- machines. COLE, A. R. and COLE, B. T., 87, Princess Road, Leicester. Jan. 25, 1930, Nos. 2635 and 35451. Divided application [Class 74 (ii).] Pelerine stitch-forming instruments 20 are provided in a circular knitting-machine and are arranged in an annular bed 14, the whole or major part of which is disposed outside the needle circle. The bed 14 is preferably supported from a carrier 15, detachably secured to the sinker ring 12, by spaced pillars 19 extending between the carrier and the bed. The bed 14 is formed in two or more segments adjustably interconnected to permit adjustment in a circumferential direction. Alternatively the bed 14 may be supported above the sinker cover 13, ,Fig. 10, and may be driven by gearing 56, 57 from a gear ring 58 secured to the sinker ring 12. In another form, the bed 14 is mounted above the sinker cover and is rigidly connected to the sinker ring. A needle depressing cam 43, Fig. 6, (not shown), additional to the usual stitch-cam system, may be provided at position at which the pelerine instruments are projected over the top of the needles. The instruments 20 have butts 25 arranged at varying heights, and selectors 26, one to each height of butt, are provided for actuating the instruments 20. The selectors 26 are pivotably mounted, and are swung inwardly to actuate the instruments 20 by an abutment 28 carried by the needle-cam box and adjustable by pattern means to bring it into register with any of the selectors 26.
Patent GB-569526-A (GB)
Title: Improvements relating to the separation and concentration of diolefins
IPC: C07C7/10
Filed: 1943-02-17
Abstract: Separation and concentration of diolefins in hydrocarbon mixtures is effected by contacting with an ammoniacal cuprous solution containing more than 2 and up to 5 mols. per litre of copper, ammonia and an anion forming a soluble cuprous salt, for example, acetate, lactate, tartrate, formate, and glycolate.  Such high copper content solutions always contain some cupric copper which makes them passive to iron and steel.  The preferred solution contains per litre about 3.0 mols. cuprous copper, 0.2 mols. cupric copper, ammonia 10.5 to 11.0 mols., acetic acid 4 mols., and the balance water, and has a pH of about 10.5 to 12.5. Other solutions referred to contain per litre: 3.44 mols. copper, 8.0 ammonia, and 3.8 ammonium lactate, 4.5-5 mols. copper, 8-9 ammonia, and 7-8 ammonium lactate, 4.78 mols copper, 8 ammonia, and 8 ammonium tartrate.  Figures are given for the extraction at -5 DEG  C. of butadiene-butene-2 mixtures with the preferred cuprous acetate solution.  Three absorption towers with counter-current flow may be used, the hydrocarbon being in gas or liquid phase. Turbo-mixers may likewise be employed.  Diolefin of at least 90 per cent purity is obtained by adsorption or, if about 20 per cent is removed in a pre-flashing step, 98 per cent purity is secured on further heating to 70-80 DEG  C.  The solution is treated with metallic copper before re-use.  Examples show the passive action of the high copper content solutions to steel as compared with the corrosive action of more dilute solutions.  The extraction of a C4 cut containing 25 per cent butadiene and 75 per cent butene-2 with ammoniacal cuprous acetate of 3.4N cuprous copper is compared with an extraction by 1.7N copper solution.
Patent GB-213884-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60J1/12
Filed: 1924-02-02
Abstract: 213,884. Soc. Letourneur et Marchand. April 5, 1923, [Convention date]. Windscreens.-The weather screen arranged behind the front seats of a road vehicle is formed in two parts 2, 3 adapted to pivot about a single central standard 1. This standard is jointed to the vehicle body by a ball-and-socket joint 5, 6 to enable the folded screen to be swung downwardly in a vertical plane at right-angles to the longitudinal axis of the car and then swung into a recess 9 formed in the central division of the vehicle, so that the shorter edges of the weather screen become horizontal and therefore do not interfere with the use of a folding seat.
Patent GB-925936-A (GB)
Title: Improvements in or relating to bags
IPC: B65D30/24
Filed: 1960-01-26
Abstract: 925,936. Bags. MONSANTO CHEMICAL CO. Jan. 26, 1960 [Jan. 26, 1959], No. 2775/60. Class 94(2). A bag formed from tubular polyethylene has a body portion 20 closed at one end 17, a tongue 23 of thinner material of substantially rectangular shape being joined to the open end. The tongue and the contiguous comer of the bag are folded down and the edges of the tongue are sealed between the edges of the bag at 30, the bag being filled through the tube thus formed and being finally closed by pressure of the contents against the tube. The bags may be made from a plurality of plies of polyethylene film.
Patent GB-718044-A (GB)
Title: Improvements in radar systems
Inventor: MCMULLIN TERENCE ALEXANDER
IPC: G01S13/78
Filed: 1952-02-02
Abstract: 718,044. Pulse radar. MURPHY RADIO, Ltd. Feb. 2, 1953 [Feb. 2, 1952], No. 2843/52. Class 40 (7) Relates to a pulse interrogator-responder system comprising a plurality of interrogators having different recurrence frequencies and operating in conjunction with a single responder beacon in which each interrogator compnses a strobe pulse which drifts relative to the interrogating pulse until it coincides with a response pulse and then remains locked thereto, In such a system the normal search drift of a strobe pulse may be slowed down by encountering spurious responses initiated by other interrogators and according to the present invention this isminimized by automatically reducing the width of the strobe pulse when it encounters a response. The invention is described as applied to a single pulse strpbe but a double pulse strobe may be employed in which case both the durations of the pulses and their separation are reduced.  As shown the single strobe is generated by applying the positive square wave output from the screen grid of a plantastron V11 to the grid of a valve V5 via a differentiating circuit C11, R 12, R73, the resultantnegative pulse coincident with the trailing edge of the square wave being selected and inverted by V5 and applied to the selected and inverted by V5 and applied to the suppressor of a pentode gate valve V4 and the response signals being appied to the control grid of V4. In the absence of response pulses the timing of the strobe is cylically varied by applying a sawtooth voltage from a Miller integrator V3 to the anode of V11 via a diode V12, but when the strobe coincides with a response a negative pulse is produced at the anode of the gate valve V4 which is applied via a diode V6 to the grid of V9 thereby increasing the potential of its anode which is directly coupled to the grid of the Miller valve V3 to reduce the rate of drift of the strobe pulse. The grid of V5 also is connected via a resistor 12 to a tapping on the anode lead 73 of V9 so that when the anode potential of V9 increases the duration of the pulse selected by V5 decreases. Specifications 690,480 and 718,038 are referred to.
Patent GB-1064136-A (GB)
Title: Valve control for vibrator and like apparatus operated by elastic fluid
IPC: B06B1/18
Filed: 1965-01-22
Abstract: 1,064,136. Percussive tools. A. H. PETER. SON. Jan. 22, 1965 [Feb. 6, 1964], No. 2927/65. Heading B4C. [Also in Divisions F1 and F2] A mechanism for vibrating, shaking, pounding, punching or impacting comprises a hammer reciprocated within a cylinder by pressurized elastic-fluid. In a vibrator 10 a hammer 30 is reciprocated within a cylinder 28 by pressurized air, e.g. at a minimum pressure of 30 p.s.i., received from a compressor 54 through an optional pressure regulator valve (not shown) in line 50, an inlet chamber 48 and a port 56 intermittently opened and closed by a main valve 66. With the main valve and hammer in the position shown, the air flows through passage 42, orifice 46 and passage 47 to raise the hammer and discharge air in chamber 36 through a vent 40 to atmosphere. As the hammer reaches the end of its upward or return stroke a rod 118 opens a check valve 114 to vent to atmosphere, or other low pressure, pressurized air trapped in a chamber 84 and exerting a closing force on the main valve 66. This permits the pressure exerted on the effective area 74 of a flange 72 on the main valve to open the main valve against the closing force exerted by an optional cushioning spring 112 and a number of magnets 78. The effective area 74 may be 0À6 square inch and the force exerted thereon 18 1b.The sudden flow of pressurized air into chamber 36 forces the hammer 30 on its downward stroke. This movement is cushioned by compressing the air trapped below the hammer to a pressure sufficient to enable it to escape through radial passages 15 and an 0-ring seal 17. Moreover, when the main valve opens some pressurized air flows through check valve 114 into the chamber 84 to substantially establish pressure balance across the main valve and permit the magnets 78 to return the main valve to its closed position. The diameter of the passage 88 may be varied to adjust the time taken for pressure balance to be established and thereby the timing of closing of the main valve. The timing of opening of the check valve 114 can be altered by adjusting the length of the rod 118. The speed of the upward stroke of the hammer 30 may be adjusted by varying the size of orifice 46 by needle valve 44, or the size of vent 40 by a needle valve (not shown). The vibrator 10 is shown attached in an upright position to a body 20. However, it may be arranged in other positions, e.g. inverted from that shown in which case the hammer is returned by gravity.
Patent GB-1424455-A (GB)
Title: Conveying line
IPC: F16H55/26
Filed: 1973-01-22
Abstract: 1424455 Conveying systems NITTSU SOGOKENKYUSHO KK 22 Jan 1973 [1 Feb 1972] 3163/73. Heading B7L [Also in Division F2] A conveying line comprises a rack having a flexible spindle 1 with teeth 2, the rack being slidable in a guide 9 having a longitudinal slot 10, the rack being moved by a pinion 12 engaging the teeth 2 and driven by a motor (not shown) and a load 15 is suspended from a conveying frame 14 as shown which has an engaging device 13 engaging between teeth 2 in the slot 10 so that movement of the rack conveys the load. The guide 9 may have a circular or rectangular cross-section. The teeth 2 can be formed integrally with the spindle 1 or can be moulded on to it separately, and both spindle 1 and teeth 2 can be of plastics material.
Patent GB-1255159-A (GB)
Title: Intake air heating apparatus for compression-ignition internal combustion engines
IPC: F02N19/08
Filed: 1968-11-22
Abstract: 1,255,159. Control of burners; spark igniters. CUMMINS ENGINE CO. Inc. 22 Nov., 1968 [22 Nov., 1967 (2)], No. 3227/71. Headings F4F and F4T. [Also in Division F1] The subject-matter of this Specification is substantially the same as that in Specification 1,255,159 but the claims are concerned with the burner and the control of its fuel supply.
Patent GB-837486-A (GB)
Title: Esters of hyponitrous acid
Inventor: SEED LESLIE
IPC: C07C245/00
Filed: 1957-01-30
Abstract: The invention comprises a -acyloxyalkylhyponitrites of formula <FORM:0837486/IV (b)/1> where R is alkyl, cycloaklyl or aryl, which may be substituted and may be unsaturated, and may be part of a dibasic acid; and R1 and R11, which may be the same or different, are hydrogen, alkyl, alkoxy or aryl, and may be substituted through ether-oxygen links or by unsaturated groups; or R1 and R11 are part of the same cyclic structure.  These compounds may be prepared by contacting an inorganic hyponitrite with an ester of an organic carboxylic acid which carries a halogen substitutent on the a -carbon atom of the alcohologenic portion of the ester, preferably in an inert non-aqueous solvent at - 20 DEG  C. to 0 DEG  C.  Bromomethyl acetate is prepared by the reaction of acetyl bromide with paraformaldehyde in the presence of anhydrous zinc chloride.  2 - Acetoxy - 2 - bromo - propane is prepared by reacting acetyl bromide with acetone in the presence of anhydrous aluminium chloride. 1-Bromo-1-ethoxy-methyl acetate is prepared by reacting acetyl bromide with diethoxymethyl acetate.  The compounds of the invention may be used as polymerization catalysts (see Group IV (a)). Specification 813,460 is referred to.ALSO:Ethylenically unsaturated compounds are polymerized in the presence as catalyst of a compound of formula <FORM:0837486/IV (a)/1> where R is alkyl, cycloalkyl or aryl, which may be substituted and may be unsaturated, and may be part of a dibasic acid; and R1 and R11, which may be the same or different, are hydrogen, alkyl, alkoxy or aryl, and may be substituted through ether-oxygen links or by unsaturated groups; or R1 and R11 are part of the same cyclic structure.  The monomers may be mono- or poly-olefinic, specific olefinic compounds mentioned being butadiene, chloroprene, fluoroprene, isoprene, cyclopentadiene, 1,4-hexadiene; ethylene, propylene, vinyl acetate, vinyl chloride, vinyl benzoate, vinyl phthalimide, vinyl carbazole, acrylonitrile, acrylamide, styrene and halogenated styrene, methyl methacrylate, methacrylamide, isopropenyl acetate, and vinyl ethyl ether. Interpolymers may also be p  prepared.  The polymerization reaction may be carried out in the presence of chain-transfer agents, or diluents, such as hydrogen, carbon tetrachloride, chloroform, bromotrichloromethane, propane, ethane or methane.  The polymerization may be effected batchwise or continuously.  (For preparation of the hyponitrites see Group IV (b)).  Specification 813,460 is referred to.
Patent GB-749686-A (GB)
Title: Improvements in or relating to the suspension of ceilings in building
IPC: E04B9/18
Filed: 1953-02-05
Abstract: 749,686. Concrete floors; ceilings. CONCRETE, Ltd., and WOOD, K. M. Feb. 5, 1954 [Feb. 5, 1953], No. 3258/53. Class 20(4). Concrete hangers 4 for supporting ceiling battens 3 from a floor comprising hollow concrete beams such as 1 and 2 have embedded therein hooked bolts 9 and wooden blocks 5 the free ends of the bolts 9 project through the joints between beams and are secured as shown while the battens are nailed to the wooden blocks 5.
Patent GB-1444147-A (GB)
Title: Electronic data processing apparatus
IPC: G06F9/45
Filed: 1973-07-06
Abstract: 1444147 Plotters HEWLETT-PACKARD CO 6 July 1973 [7 July 1972] 03350/76 Divided out of 1444141 Heading G4H X and Y offset values entered from a keyboard into a memory in a programmable calculator are summed with specified X and Y co-ordinates in response to plot commands so as to control the positioning of the recording head of a mechanical X-Y plotter. The plotter can also be controlled by the calculator executing routines stored in ROM to (1) operate in incremental plot mode in which the current X and Y co-ordinates are added to specified X and Y increments stored in the calculator; (2) to draw X and Y axes including specified starting and ending coordinates; (3) to plot an alpha numeric label in response to a label command having the same format as a standard BASIC language PRINT command, the character height-to-width ratio and the angle of rotation of the label being specified in the command; (4) to displace the plotter pen by a specified number of character units; (5) to plot an alpha numeric character entered from the keyboard following a LETTER command; and (6) to control movement of the plotter pen in either co-ordinate direction in response to actuation of a corresponding plotter pen position control key on the keyboard.
Patent GB-524541-A (GB)
Title: Improvements in and relating to the distillation of coal tar acids
IPC: C07C37/00
Filed: 1939-02-01
Abstract: 524,541. Distilling tar acids. CRAIG & CO., Ltd., A. F., and MURRAY, W. F. Feb. 1, 1939, No. 3371. [Class 32] Tar acids, after continuous dehydration, are pumped through a heater and passed, e.g. at 160‹ C. into a vaporizer operating under reduced pressure, e.g. 80 mm. of mercury, to liberate, as vapours, substantially all phenol, cresols and xylols and leave a residue of pitch and high boiling acids, the liberated vapours being then passed to a fractionating column operating under reduced pressure in such a manner that xylenols are recovered as a residue and meta an d para cresols as a side stream while phenol and orthocresol are removed as an overhead which is condensed and passed through a second heater to a second fractionating column where orthocresol containing a small percentage of phenol is recovered as a residue and pure phenol is recovered as an overhead. As shown, tar acids are passed through heat exchanger 2 and steam heater 2a to a dehydrator 3 from which the dehydrated crude passes through cooler 7 to-a storage vessel 8. From the vessel 8 the crude is pumped through a heater 11 and passed, e.g., at a temperature of 160‹ C. to a vaporizer 12 operating under reduced pressure, e.g. 80 mm. of mercury. Residue is withdrawn to a vessel 21 and the vapours pass to a fractionator comprising two bubble columns 13, 14 equipped with reboilers 15, 16 and reflux condensers 17, 18. Meta-4-xylenol is withdrawn from the base of column 13 and meta- and para-cresols from the base of column 14 to receivers 22, 23 respectively. Vapour passes to a condenser 19 and thence to a storage vessel 24 from which it is passed through heater 25 to a second fractionator comprising two columns 26, 27, orthocresol being withdrawn from the base of column 26 to a receiver 32 and the liquid from the base of column 27 being returned to column 26. Phenol vapours are condensed at 30 and passed to a receiver 33.