baber/WOPTO huggingface dataset:
Patent GB-101009-A (GB)
Title: Improvements in Fish Hooks.
Inventor: PAYTON JAMES YELVERTON
IPC: A01K83/06
Filed: 1916-03-29
Abstract: 101,009. Payton, J. Y., and Center, J. L. March 29, 1916. Fish-hooks; automatic striking-apparatus. - A fish-hook is normally arranged with its shank 1 inside a body A which carries a guard E having a free extremity under which the hook-bill 2 engages, means being provided for projecting the hook when the fish takes the bait. The guard E is of resilient wire and may be bent to vary the pressure between it and the hook when the hook is in the " set " position, Fig. 2. A hook-shaped device F, preferably of doubled wire, is provided to carry bait, to grip the hook, as shown in Fig. 1, when the device is carried in the pocket, to serve as a stop, as shown in Fig. 2, when the hook is being " set, " and to form a guide for the line D which passes from the ring 5 around a part 13 back to an eye 3 on the hook. The line emerges from one side of the eye 3 which is in the plane of the hook, this arrangement securing that, when the hook is projected, it makes a quarter-turn.
Patent GB-111785-A (GB)
Title: Improvements in or connected with Speed Indicators.
Inventor: CHADBURN WILLIAM
IPC: G01P3/10
Filed: 1916-01-03
Abstract: 111,785. Chadburn, W., and Chadburn, W. R. Jan. 3, 1916. Periodic - counter speed indicators comprise cams 21, 22, 23 upon a constant-speed shaft 20 controlling respectively the following parts :-(1) the link-work 62, 63<a>, 64 which effects the periodic engagement, between two wheels 6, 55 with wedgeshaped edges of a V-edged jockey or coupling wheel 61, thereby producing an intermittent rotation of the intermediate wheel 55 from the speeddriven shaft 5; (2) a lever 66 and co-operating V- edged friction pawl 65, which is released, so as to hold the intermediate wheel against a spring return, immediately before termination of the driving period; (3) a similar lever and detent for holding a wedge-shaped edge wheel 56 except for a brief interval following termination of the driving-period. This wheel carries the speed pointer 1 and has a definite zero position defined by a stop, to which it is urged continually by a spring 70, and during the release it moves into agreement with the intermediate wheel, if not already in that condition, as determined by one-way driving- pins 59, 60. At other times, the wheel and pointer remain at the last speed indication. Spring restoration and stop parts are provided for the intermediate wheel 55, which thus always starts from a zero position. The arrangement may be modified by the employment of a second pointer actuated at a recognized time-interval, such as one minute, or two such pointers may be provided, the one to remain at the speed last measured while the other is reset to zero and makes a new measurement. Specifications 1421/74, 7385/03, 4189/04, 16320/04, 21467/07, [Class 37, Electricity, Measuring &c.], 23249/07, 27237/09, and 22980/11 are referred to.
Patent GB-1380647-A (GB)
Title: Mineral mining installations
IPC: E21C29/18
Filed: 1972-02-01
Abstract: 1380647 Mineral-mining installations GEWERKSCHAFT EISENHUTTE WESTFALIA 1 Feb 1972 [9 March 1971] 4643/72 Heading E1F In a mineral-mining installation wear problems arising on tilting of a mineral-minning machine 11 about the axis of a conveyer 10 along which the machine is guided are minimised by so fitting replaceable members 18 to the sword plate-mounted guides 13 of the machine that the members 18 and not the guides 13 will engage the walls of the guide channel 14 mounted on the goaf side of the conveyer when said tilting occurs. Preferably the machine has two guides to which the ends of a haulage chain for the machine are attached. Each guide may have a recess for accommodating a member which can, when housed in the recess, project outwardly beyond the nearest face to the conveyer of the guide member. The member may be a roller 18 or a shaped insert and may be formed of wear resistant material. Alternately wear resistant pads may be attached to the upper and inner faces of each guide member. The machine may have additional replaceable means for engaging the face side of the conveyer, when said tilting occurs and replaceable means combined with structures on the sword plate for limiting the depth of cut of the machine. Specification 1130130 is referred to.
Patent GB-1425223-A (GB)
Title: Battery charging systems for road vehicles
IPC: H02J7/24
Filed: 1973-01-30
Abstract: 1425223 Automatic voltage control LUCASTVS Ltd 30 Jan 1973 [4 Feb 1972] 4671/73 Heading G3R A battery charging system includes an alternator with a relay contact in series with its field winding. The relay winding is energized by a transistor switching circuit in accordance with battery voltage.  As shown, a vehicle battery 19 is charged by  alternator 11 with field winding 39 in series with contacts 37. A winding 34 controls the contacts 37 in response to switching transistors 25, 29, 32, Zener diode 24 and resistors 22, 23 connected across the battery terminals. A capacitor 36 provides surge protection, and another capacitor 27 integrates the input signal to prevent high frequency switching.
Patent GB-483598-A (GB)
Title: Improvements in or relating to the production of full and tear resistant leather
IPC: C14C3/02
Filed: 1937-02-16
Abstract: 483,598. Making leather. ROHM & HAAS AKT.-GES. Feb. 16, 1937, No. 4676. Convention date, Oct. 12, 1936. [Class 76] Leather is tanned with formaldehyde in conjunction with complex compounds of aluminium salts and oxalic acid or its salts. The leather so produced may be further treated with other tanning agents. According to an example hides are fulled in a solution of oxalic acid, aluminium sulphate (or alum), sodium chloride or alkali sulphate and formaldehyde and after some hours a solution of sodium carbonate is added. The hides are finally washed and greased with sulphonated oil. Hides formaldehyde-tanned as described may be further tanned according to examples with sodium silicate and formic acid, iron sulphate chloride and sodium silicate, chrome alum, a mixed bark tanning extract, sulphite cellulose extract, sulphite cellulose and sodium silicate.
Patent GB-928210-A (GB)
Title: Transistor-controlled power supply
Inventor: TIMMERMANS FREDERIK AREND GERH
Filed: 1961-02-08
Abstract: 928,210. Automatic voltage control. NEDERLANDSE ORGANISATIE VOOR TOEGEPAST - NATUURWETENSCHAPPELIJK ONDERZOEK TEN BEHOEVE VAN NIJVERHEID, HANDEL EN VERKEER. Feb. 8, 1961, No. 4693/61. Class 38 (4). In a voltage regulator of the series or shunt transistor type a D.C. load is fed over a rectifier from an A.C. supply source and the transistor is protected against overload by a variable impedance connected in the input to the rectifier. As shown, a variable impedance 11 has a threelegged core with a winding W 1  on the inner leg, in series with the input to a rectifier 12, and series-connected windings W 2  and W<SP>1</SP> 2  on the outer legs in parallel with a load 9 the voltage V across which is maintained constant by means of a series transistor 8. Under normal operating conditions a large direct current flows through the windings W 2 , W<SP>1</SP> 2  and the impedance 11 has a low value. If a short circuit should occur no current flows through these windings and the impedance is at a maximum whereby current from the supply source is limited and excessive dissipation of power in the transistor 8 is avoided. A shunt transistor regulator is described with reference to Fig. 2 (not shown), where the variable impedance is controlled by the current through the load, the impedance increasing as the load current decreases. Specification 831,511 is referred to.
Patent GB-179656-A (GB)
Title: Improvements in liquid level indicators
IPC: G01F23/16
Filed: 1921-02-10
Abstract: 179,656. Smith, G. L., and Gregory, V. H. Feb. 10, 1921. Indicators actuated by pressure of head of liquid.-In liquid-level indicators of the type in which a diaphragm enclosed in a shell 7 is subjected on one side to the pressure head of liquid in the tank 6 and on the other side to the pressure of a sealed quantity of a gaseous transmitting medium controlling a pressure gauge 10, a pump 11 is provided for adjusting the quantity of sealed fluid when setting the pressure gauge. When this operation is completed, a valve carried by the pump plunger is secured in a shut position by locking the plunger spindle 15 in a bayonet-joint groove 16. The device may be applied to a tank subject to compressed-air feed.
Patent GB-494335-A (GB)
Title: Improvements in thermostatically controlled electric ovens or stoves
IPC: H05B1/02
Filed: 1937-02-18
Abstract: 494,335. Thermal switches. ESTATE STOVE CO. Feb. 18, 1937, No. 4906. Convention date, April 13, 1936. [Class 38 (v)] [Also in Group XXXV] A thermal switch comprises an element 37 carrying pairs of connected contacts adapted to bridge respective pairs of terminals 35 in the leads supplying oven heaters. The element 37 is carried by a lever 38 pivoted at 39, and engaging a nut 28 on the end of a screw 29 secured to the bellows 22 of a temperature responsive device which comprises an element 20 in the oven. A control member 15, with suitable indicating means, may be rotated into various positions, including an off position, and is arranged to turn the nut 28 on the screw 29 to close the circuit and to determine the temperature at which the element 37 will open it. In the off position, a cam-shaped portion 56 of the control member 15 operates a spring-controlled plunger 50 whereby an arm 58 is caused to open the switch and hold the element 37 locked against circuit closing operation by the temperature responsive element. In a modification, movement of the control member 15 back beyond the off position causes a cam depression to permit a spring-controlled sliding bar, carrying a contact bridge, to close the circuit of an independent heating element.
Patent GB-266131-A (GB)
Title: Improvements in or relating to the manufacture of woven pile fabrics
IPC: D03D27/06
Filed: 1926-02-20
Abstract: 266,131. Smith, G. R. Feb. 20, 1926. Drawings to Specification. Pile fabrics having uncut twisted loops of pile warp yarn are produced from twisted pile yarn in the greasy state, the twisted loops being set by boiling, preferably in the presence of alkali and quenching in cold water. The pile yarn is twisted to such an extent that unless it is maintained under tension, it curls or cockles.
Patent GB-525202-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B5/12
Filed: 1939-02-15
Abstract: 525,202. Fasteners. FERNBERG, E. B., and FERNTOL PATENTS, Ltd. Feb. 15, 1939, No. 4983. [Class 44] A device for fastening a channelshaped beading 14 to a panel &c. comprises a strip b of spring steel bent to shape shown with out-turned feet 12 to engage slots 17, 18 in a base 16 which slides under the flanges 15 of the beading. Specification 451,721 is referred to.
Patent GB-744059-A (GB)
Title: Method of recovering ammonia from dilute aqueous solutions containing ammonium ions
IPC: B01J49/30
Filed: 1953-02-23
Abstract: 744,059. Electrolytic recovery of ammonia. CHEMISCHE FABRIK BUDENHEIM AKT.- GES. Feb. 23, 1953 [Feb. 23, 1952], No. 5000/53. Class 41. A method of recovering ammonia from aqueous ammonia or ammonium salt solutions by treatment with a cation exchanger charged with hydrogen ions, comprises subjecting the exchanger after absorption of ammonium ions to electrodialysis to set free the ammonia and to regenerate the cation exchanger. A cylinder 1 made from diaphragm material contains cation exchanger 2 and a cylindrical anode 3, has a stirrer 4, and is surrounded by a net-like cathode 7. A solution of ammonium carbonate is introduced in the centre chamber, the cation exchanger becoming charged with ammonium ions. After removal of residual ammonium carbonate by washing a current is passed, ammonia being liberated at the cathode, with the cation exchanger becoming charged with hydrogen ions. The exchanger is then ready for use again after washing. A strong electrolyte, such as sulphuric acid, may be introduced in the exchanger after absorption of ammonium ions and subsequent washing. A modified apparatus may be used comprising a container divided into three compartments by two diaphragms. The cation exchanger is contained in the centre compartment, while an anode is situated in the compartment on one side and a cathode in the compartment on the other side. The ammonia may be obtained in the gaseous state or as a concentrated solution.
Patent GB-754941-A (GB)
Title: Improvements relating to electrical pulse generating circuit arrangements
Inventor: MELVILLE WILLIAM SIMM
IPC: H03K3/45
Filed: 1954-02-19
Abstract: 754,941. Changing wave shape. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 18, 1955 [Feb. 19, 1954], No. 5012/54. Class 38 (2). To generate pulses of a high recurrence frequency a plurality of individual storage circuits are discharged in a recurring sequence through a common load. Fig. 1 shows three circuits each comprising an arrangement of series connected saturable inductors and parallel connected condensers such as forms the subject of Specification 666,574 supplying a common load in parallel from a star-connected three-phase winding G. The load receives six pulses each A.C. cycle alternating in polarity. To suppress the pulses of one polarity each inductor may be biased by a winding carrying D.C., Fig. 2 (not shown). Alternatively the use is described of combinations of saturable inductors and saturable capacitors as described in Specification 723,803, Fig. 3 (not shown), and of arrangements for obtaining pulses superimposed on a D.C. potential such as form the subject of Specification 749,628, Fig. 4 (not shown). To provide six pulses per cycle of the same polarity from a three-phase source, two pulsing circuits with biased inductors may be supplied from each phase, the phase of the output of one circuit of each pair being reversed in a transformer, Fig. 5 (not shown). Specification 666,575 also is referred to.
Patent GB-548635-A (GB)
Title: Improvements relating to flexible pipe lines
IPC: F16L11/02
Filed: 1941-04-17
Abstract: 548,635. Flexible tubes. FIREPROOF TANKS, Ltd., QUINN, N. G., and TEW, R. SMALLMAN-. April 17, 1941, No. 5013. [Class 99 (ii)] A flexible tube for conveying fuel or oil in aircraft, land vehicles or boats is provided with a reinforcement consisting of an open helix 1 formed from a synthetic resin, such as polyvinyl chloride, which upon fracturing or disintegrating does not damage the other parts of the tube. As shown, the helix 1 is covered by a layer 2 of helically wound tape, petrol-proof layers 3 of fibrous cellulose, which may be cemented together, a helix 4 of thin string, and a resilient layer 5 of tough rubber cemented to the cellulose layer 3. The layer 5 tends to seal a puncture such as a bullet hole, and is surrounded by a helical winding 6 of string and a cemented covering 7 of rubberized fabric, rubberized braiding or wire braiding. A second helix of plastic material may be arranged on the covering 7 with its convolutions lying between those of the helix 1. This and the helix 1 may be formed by winding on a heated or cooled mandrel. The Provisional Specification states also that the tube may have between the cellulose layer and the tough rubber tube a layer of sponge rubber and a thin layer of vulcanized rubber as described in Specification 543,005, [Group XXIX], and a layer of petrol-proof cellulosic compound or derivative within the inner helix.
Patent GB-269115-A (GB)
Title: Improvements in or relating to the construction of portable folding advertising or dispaly devices or stands
IPC: A47F5/11
Filed: 1926-02-25
Abstract: 269,115. Lutman, A., and Rowntree & Co., Ltd. Feb. 25, 1926. Card and Like stands.- A collapsable cardboard &c. display stand is composed of a blank bent to form a front portion 12, two side portions 13 and a rear portion 11, the side portions having recesses 14 to provide supports for articles. A flap 19 on each portion 12 is secured to the adjacent side 13. The sides 13 may be formed with rear wings 20 to give the stand additional stability. The stand may be folded substantially flat on the crease lines 15, 17 or 16, 18.
Patent GB-285816-A (GB)
Title: Improvements in tenterframe drying machines
IPC: D06C3/00
Filed: 1928-02-17
Abstract: 285,816. Triggs, W. W., (Rudolph & K³hne Ges.). Feb. 17, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 22, 1928]. Drying materials in long lengths.-The material c is conveyed by tenter chains through superposed chambers defined by telescopic partitions attached to a wall constituting one side of the chambers, this arrangement facilitating the treatment of material of diferent widths. Fans d and heaters are provided so that cold air, drawn into the lowermost chamber, is passed through the successive chambers at progressive temperatures in countercurrent to the material.
Patent GB-694022-A (GB)
Title: Process for the production of germanium elements for use in the electrical arts
IPC: H01L21/288
Filed: 1949-02-25
Abstract: 694,022. Electrolytic surface treatment of germanium. WESTERN ELECTRIC CO., Inc. Feb. 25, 1949 [Feb. 26, 1948], No. 5202/49. Classes 37 and 41. A process of making a germanium element for electrical use, includes the step of subjecting a face of a body of N-type germanium material to an anodic oxidation treatment, so as to produce a P-type layer thereon. The invention is a means of producing a thin layer of P-type conductivity on a -block of N-type, high back voltage germanium material which may then be used in a transistor arrangement. The Specification describes a process in which a block of N-type material is prepared as described in Specification 632,942, and the surface is then ground and etched, using a solution of concentrated nitric acid, hydrofluoric acid. and copper nitrate. As shown in Fig. 1, one side of the block 1 is provided with a metal coating 2, and a viscous electrolyte 6, such as glycol boriborate is placed on the upper surface. A negative potential is applied to electrode 7, and the potential may be periodically adjusted so that a current of about 1 milliampere per sq. cm. of block surface is maintained for 30 minutes. Alternative doses of current are described. The block is then washed with warm water, which removes any germanium dioxide, or alcohol, which allows the oxide film to remain, and then dried in a vacuum chamber by means of radiant heat. The process is said to result in the production of a very thin P-type layer on the N-type block, and the element may be used in a transistor or crystal amplifier arrangement as described in Specification 694,021. Specifications 592,303, 594,121 and 669,399 also are referred to.
Patent GB-1146022-A (GB)
Title: Preparation of halogenated ketones
Inventor: GLAMKOWSKI EDWARD JOSEPH
IPC: C07C49/792
Filed: 1966-06-08
Abstract: 1,146,022. Preparation of haloketones. MERCK & CO. Inc. 8 June, 1966 [15 June, 1965], No. 5265/68. Divided out of 1,146,021. Heading C2C. Haloketones C 6 H 5 COR 4  wherein the benzene ring contains a bromine or chlorine atom meta to COR 4  and a C 3-8  cycloalkyl radical para to COR 4 , R 4  being C 1-5  alkyl or benzyl, are prepared by reacting a cycloalkyl-benzene with an acid halide R 4 COhal in an inert solvent in the presence of AlCl 3  or AlBr 3  to give the ketone C 6 H 5 COR 4  containing the cycloalkyl group para to COR 4 , admixing the reaction mixture, without isolating this ketone, with chlorine or bromine in the presence of an excess of AlCl 3  or AlBr 3  to form a halophenyl ketone complex and treating this complex with water or an aqueous acid.
Patent GB-1138654-A (GB)
Title: Explosive charges for seismic prospecting
Inventor: TEICHMANN GORDON ALGER
IPC: F42D1/04
Filed: 1966-02-07
Abstract: 1,138,654. Explosive charges. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Jan., 1967 [7 Feb., 1966], No. 5277/66. Heading F3A. [Also in Division H4] An explosive charge for land and marine seismic prospecting comprises a charge of high explosive having two or more initiating points each coupled with an initiating means and arranged to initiate the explosive charge at all the initiation points simultaneously or within a negligible period so that the shock waves propagating from the initiation points collide within the explosive at two or more positions simultaneously or within a negligible period. The charge may comprise an initiating line 31, Fig. 6, of detonating fuse cord and a looped line 32 also of detonating fuse cord, the detonation waves travelling in the direction of the arrows. Alternatively, the charge comprises a tape of polyethyleneterephthalate in which two sheets of the material are bonded together to sandwich therebetween an initiating line of high explosive (35, Fig. 7, not shown), and looped explosive charges (36), the explosive being contained within a preformed depression is one of the sheets. The explosive charge may also comprise a plurality of individual charges each having two or more initiating points with initiating means coupled to each point and arranged to initiate the individual charges so that the shock waves propagating therefrom collide within the individual charges and all the collisions occur simultaneously or within a negligible period. The charge may comprise initiating lines of fuse cord 27, Fig. 5, and transverse lengths 28 of fuse cord or; two initiating lines of fuse cord (24, Fig. 4, not shown) and looped lengths (23) of fuse cord or; two initiating lines of fuse cord (10 and 11, Fig. 1, not shown) threaded through the opposite ends of plastic explosive charges (12), (13) and (14). The individual charges and the initiating lines may be sandwiched in an envelope of sheeted plastics material e.g. polyethylene, polypropylene, polyvinyl chloride, polymethylmethacrylate or polyethyleneterephthalate strengthened with wire or textile yarn and arranged in the form of a flexible tape.
Patent GB-696887-A (GB)
Title: Improvements in multiple jet blasting devices
IPC: F42B1/028
Filed: 1950-03-02
Abstract: 696,887. Blasting and like charges. BYERS, L. S. March 2, 1950 [March 15. 1949; Feb. 16, 1950], No. 5373/50. Class 9(i) An explosive device for blasting and like purposes is provided with a hollow charge housed in a container the base of which is recessed to form a cavity with a plurality of outwardly flaring coaxial conical surfaces, the top of the container being dome-shaped. The charge 5 is placed in a casing of metal, moulded plastics or moulded fibrous material, having a base 31 which may be of metal and is provided with a recess having a frusto-conical outer part and a conical inner part of greater cone angle than the frustum. In the domeshaped top 32 is a blasting cap guide 35 aligned with the cavity in the charge. The container 32 has a flange 33 secured to the base 31 by a beading 34. The base 31 is of thinner material than the container.