baber/WOPTO huggingface dataset:
Patent GB-694066-A (GB)
Title: Improvements in two-stroke injection type internal-combustion engines with energy cell and return-flow scavenging
IPC: F02B21/00
Filed: 1951-04-04
Abstract: 694,066. Arrangements of air cells and fuelinjectors. LANOVA AKT.-GES. April 4, 1951 [Sept. 6, 1950], No. 7824/51. Class 7 (iii). In a two-stroke fuel-injection engine with returnflow scavenging comprising a combustion chamber 5, an injection nozzle 8. an energy cell 6 and opposed piston-controlled exhaust and scavenging ports 2, 3, respectively, the cylindrical cell 6 is disposed in the cylinder head at the same side as the exhaust ports 2 with its longitudinal axis 7 so disposed that the jet of combustion gases from the cell impinges upon the top of the piston, not shown, at the same side as the scavenging ports 3. The nozzle 8 may be arranged vertically or horizontally but in both instances the fuel-jet is substantially perpendicular to the centre line of the cylinder and is directed toward the funnel-like mouth of the cell 6; when a vertical nozzle is used the fuel-jet passes through a short horizontal duct before entering the combustion chamber 5. the nozzle being thereby protected from the hot combustion gases. The above constructions provide for even overall heating of the pistons.
Patent GB-510903-A (GB)
Title: Improved spraying apparatus for liquids
IPC: B05B15/622
Filed: 1938-03-14
Abstract: 510,903. Pipe joints. TOMS, E. S. March 14, 1938, No. 7829. [Class 99 (i)] [Also in Group XXIX] The tube 1 of a sprayer is provided with a pin which engages a bayonet slot in a tube 7 and passes through a cup leather 8 retained by a screw cap 9.
Patent GB-895869-A (GB)
Title: Improvements in hot-gas reciprocating engines
IPC: F02G1/047
Filed: 1959-03-06
Abstract: 895,869. Hot gas engines. PHILIPS GLOEILAMPENFABRIEKEN N.V. May 6, 1959 [May 10, 1958], No. 7868/59. Class 7(1). [Also in Group XXDC] In a hot-gas reciprocating engine in which the supply of fuel to the heater is controlled by a thermostat and the air supply to the burners by an hydraulically-controlled servomotor, the thermostat 7 which is located in the combustion space 3 adjacent the heating coil 2 acts on a control mechanism 8 to control the supply of liquid fuel to the burner 4 in accordance with engine load. On, e.g., an increase in this load, the temperature on the walls of the coil falls so that the thermostat adjusts the mechanism 8 to supply more fuel to the burners and at the same time decrease the pressure on the downstream side of a flowrestrictor 24 in a fuel supply line 23. The pressure on the upstream side of the restrictor being maintained constant by a pressure-relief valve 56 on the discharge side of a gear-wheel pump 22. This differential pressure causes a piston 30 slidable in a cylinder 29 connected by pipes 27, 28 to opposite sides of the restrictor to move rightwardly to move a piston valve 32 to the right so that pressure liquid, as shown liquid fuel delivered through a branch 37 from the fuel line 23, is directed to act on the underside of a piston 43 which moves upwardly and through a rack and pinion 45, 46 increases the amount of opening of a valve 12 in a line 11 supplying the burner with combustion air so that the increased fuel supply to the burner is matched by a corresponding increased air supply. The air line 11 upstream of the valve 12 is also fitted with a flow-restrictor comprising a Venturi 47 connected by lines 48, 52 to opposite sides of a diaphragm 50 operatively connected by a rod 53 with the piston valve 32. The increased opening of the valve 12 results in leftward movement of the diaphragm 50 and the restoration of the piston valve 32 to its initial position with the piston 43 and valve 12 retained in their new positions until the demand on the engine again changes. The flow restrictors 24, 47 are designed so that their characteristic curves, i.e. volume of flow per unit of time plotted against pressure difference are parabolic with their peaks at the origin of the axes so that the ratio of the amounts of air and fuel flowing through the lines 11 and 23 remains substantially constant.
Patent GB-812503-A (GB)
Title: Improvements in or relating to the production of dried aluminium hydroxide gels
Inventor: BEEKMAN STEWART MILTON
IPC: C01F7/02
Filed: 1957-03-11
Abstract: An aluminium magnesium hydroxy carbonate admixture is made by mixing hydrous aluminium hydroxy carbonate gel with precipitated magnesium carbonate (5 to 35 parts as oxide per 100 parts total oxides) and drying.  The mixture may be made by admixing the two ingredients or by adding magnesium chloride to the aluminium hydroxy carbonate gel and precipitating the magnesium carbonate in situ.
Patent GB-526323-A (GB)
Title: Improvements in or relating to the production of metallic materials
IPC: B22F3/14
Filed: 1939-03-13
Abstract: 526,323. Iron and other metals and alloys; obtaining coherent masses from powdered metals. SWAN, HUNTER & W. RICHARDSON, Ltd., and McBAIN, W. March 13, 1939, No. 8050. [Classes 72 and 82 (i)] [Also in Group XXII] Metals or mixtures of metals are obtained in a form having improved properties by melting and subsequently subjecting the molten material to pressure in absence of air. The heating may be effected electrically by means of a welding plant, and the pressure may be applied hydraulically, the material being treated in a solid metal container having a hole drilled therein to form a mould. The metal before melting may be initially in a finely divided state. The application of the process to the following single metals, viz: copper, tin, lead, zinc, aluminium, mild steel, cast iron, and cable iron, and to the following mixtures, viz: cast iron and mild steel, cast iron and copper, cast iron and cable iron, mild steel and copper, and cable iron and copper, is specified. Specification 424,627, [Group XXII], is referred to.
Patent GB-825692-A (GB)
Title: Improvements in or relating to a method of treating silicon-iron alloys
IPC: C21D8/12
Filed: 1958-03-13
Abstract: In the heat treatment of silicon-iron alloys as described in the parent Specification, (a) the cold deformations are followed by introducing heat treatments, (b) the percentage reduction of the section of the workpiece produced by the last deformation (40-85%) is greater than that produced by the penultimate deformation (8-40%) and (c) the heat treatment between the last two stages is carried out at a temperature between 750 and 950 DEG C. The final heat treatment may be preceded by an additional heat treatment the temperature (500-800 DEG C.) and duration (at least 10 minutes) of which are such that more than 90% complete primary recrystallization takes place with less than 10% secondary recrystallization with cubic texture.  This additional heat treatment may be carried out in a non-oxidizing or gently oxidizing atmosphere preferably containing hydrogen, and the workpiece may or may not be cooled to room temperature before the final heat treatment.
Patent GB-578208-A (GB)
Title: Method of making selenium elements
IPC: H01L21/06
Filed: 1944-05-01
Abstract: 578,208. Selenium cells. STANDARD TELEPHONES & CABLES, Ltd. May 1, 1944, No. 8159. Convention date, May 1, 1943. Drawings to Specification. [Class 40 (iii)] [Also in Group XXXVI] In making a selenium element, such as a rectifier, selenium powder is pressed against a base-plate, the temperature of the carrier plate being maintained higher than that of the selenium surface, during the compression. This may be effected, for example, by keeping that platen of a press that is in contact with the selenium at a temperature of 20 C. to 110 C., while the temperature of the platen that is in contact with the base-plate is kept at 110 C. to 220 C., at a pressure of about 4000 lbs. per sq. in.
Patent GB-338090-A (GB)
Title: Improvements relating to cage or like guides in mine shafts
IPC: E21D7/02
Filed: 1930-03-13
Abstract: 338,090. Seabrook, H., (Schmiedag Vereinigte Gesenkschmieden-Akt.-Ges.). March 13, 1930. Cage and platform lifts.- Means for securing the guide beams in a mine shaft to the buntons or cross-beams comprise a U-shaped strap embracing the crossbeam and fixed to the guide beams with strain taking means consisting of a plate secured by the strap and engaging the guide or bolts engaging the strap and recesses in the guides. The crossbeam g is embraced by a strap h with flanged edges i and is secured to the guides a by bolts b. A bent plate n is secured between the strap and cross-beam by a bolt l and has a lug o engaging a recess in the guide. The bent plate may be replaced by backing strips f, Fig. 4, the strap securing bolts m having coned collars p fitting conical bolt holes in the lugs c and recesses in the guides.
Patent GB-1249151-A (GB)
Title: Excavator buckets
Inventor: LIEBRECHT HEINRICH FRITZ
IPC: E02F3/407
Filed: 1968-02-20
Abstract: 1,249,151. Excavator buckets. LEEFORD (LONDON) Ltd. 17 Feb., 1969 [20 Feb., 1968], No. 8195/68. Heading E1F. In an excavator bucket having a bottom plate structure 16 pivoted to the main structure 10 of the bucket adjacent the front lower part thereof, e.g. a 25, the plate structure 16 can be swung up through the main structure 10 by one or more, preferably two, jacks 28, 29 pivotally connected at 30 and 33 between the structures 10, 16. The structure 16, in front of the or each jack is configured to provide a rearwardly opening box structure that will embrace and protect the associated jack when the structure 16 is lowered to lie in the vicinity of the bottom edges of the structure 10.
Patent GB-557734-A (GB)
Title: Improvements in or relating to calculating devices, slide rules and the like
IPC: G06G1/12
Filed: 1942-06-16
Abstract: 557,734. Calculating apparatus. BOLTON, S. E. June 16, 1942, No. 8229. [Class 106 (i)] A slide rule for use in machining operations comprises a fixed member and two movable members with logarithmic scales for correlating the spindle speeds at which a machine tool must run to give a specified relative speed between the tool or cutter and the work and the diameter of the work at which the cutting is taking place. The fixed member 1, Fig. 1, has three scale areas 4, 5 and 6 ; the area 6 is inscribed with graduations A indicating cutting speed, the area 5 has graduations C representing speed of machine and area 4 has two sets of graduations E and F indicating, respectively, time to travel one inch and inches of travel per minute. The movable members 2, 3 are provided with graduations D, B, indicating, respectively, feed per revolution and work diameter. The scale A is offset with respect to the other fixed scales determined by the expression 12/# Î datum line figure on scale A/datum line figure on scale B In a modified form the scale A may be aligned with the scale C while the lower scale on member 3 is offset by an amount as expressed above. In another form both scales A and the lower scale B may be offset, the scale A by an arbitrary amount and the scale B by the amount as expressed above less said arbitrary amount.
Patent GB-911993-A (GB)
Title: Improved process for the production of smoke filters and filters so produced
IPC: A24D3/02
Filed: 1960-03-09
Abstract: A process of producing smoke filters from a sliver of long natural fibres such as hemp, flax or jute comprises the steps of bleaching, drying and sterilizing the sliver, subjecting it to a second drying and to an operation to open the fibres and spread them apart, and then wrapping the sliver in paper to form a rod which is subsequently subdivided.  The bleaching is effected by hydrogen peroxide and the sterilization by heating the sliver in an autoclave at 100 DEG  C. for about four hours.
Patent GB-609620-A (GB)
Title: Improvements in juice extractors for use in connection with fruits and vegetables
IPC: A23N1/00
Filed: 1946-03-19
Abstract: 609,620. Extracting juice from fruit. STYLES, C. F. March 19, 1946, No. 8444. [Class 28(ii)] A juice extractor for fruit and vegetables comprises an outer casing 11 having a lid 2 apertured at 3 for the passage of the fruit &c., said apertures leading to a volute passage 4 within the casing which directs the fruit &c. onto a horizontal perforated and toothed shredder plate 5 secured to an apertured supporting plate 6 having a central sleeve 6a keyed to a vertical shaft 7 driven by an electric motor. Freely mounted on a sleeve 6b keyed to sleeve 6a is a 3-armed spider 8 each arm carrying a truncated conical roller 9 said rollers being mounted so as to form three concentric crushing paths on the stepped underside of plate 6. The pulped fruit &c. is then centrifuged by a perforated bowl 10 driven by shaft 7 through pins 6c co-operating with 'the sleeve 6b, the juice being delivered circumferentially into the casing 11 and therefrom through an outlet spout 12. A bracket 13 prevents rotation of the spider 8. Removal of a clip 14 permits ready removal of the lid 2 and passage 4 access then being obtained to a knob 15, the unscrewing of which allows the plate 6, spider 8 and, if desired, the bowl 10 to be withdrawn from the machine for cleaning or other purposes. According to the Provisional Specification the free ends of the spider arms may be spring-anchored to the outer wall of the passage 4 and the hub of the spider may be mounted on a spring-loaded ball thrust-bearing.
Patent GB-581757-A (GB)
Title: Improvements in pressure filters and water purification plants
IPC: C02F1/52
Filed: 1945-04-05
Abstract: 581,757. Purifying water; filters. MOORE, R. P. April 5, 1945, No. 8476. [Class 46] A filter plant suitable for water purification comprises an enclosed filter chamber 7 separated by a perforated floor 8 from a filtrate chamber 5, the base of which forms the top of a chamber 2, which may be a settling chamber. A pipe 12 extends from the chamber 2 to the top of the filter chamber 7. Liquid is supplied through a pipe 3 to the chamber 2 which is provided with an outlet valve 34. When the valve 34 and also a valve 38 in a pipe 37 are opened, liquid discharging from the chamber 2 draws air in through the pipe 37, through the filtrate chamber 5 and up through the filter bed 10. The liquid may be water treated with coagulants, or with chemicals such as lime and soda, supplied from a container 23. Pipes from the container lead to both sides of an apertured plate 26 in a supply pipe 21. After agitation of the filter bed by air, a valve 29 is opened to admit washing water from a pipe 30. In a modification the wall of the filter chamber is detachably connected to the floor by bolts.
Patent GB-502288-A (GB)
Title: Improvements in small portable looms
IPC: D03D29/00
Filed: 1938-03-18
Abstract: 502,288. Looms. SOC. L. SEGARD & FILS. March 18, 1938, No. 8478. Convention date, March 18, 1937. [Classes 142 (i), 142 (ii), and 142 (iii)] A small portable loom comprising a framework N and supports P has heddles H and a comb C into which the warp threads can easily be inserted. The heddles comprise U-shaped metal strips H having holes h, h<1> adapted to be threaded by metal rods I. The comb comprises metal strips C entering vertical grooves or saw cuts c in a part b of a lower wooden frame B their bent ends entering a horizontal groove c<1> whilst their upper ends enter a groove a in a frame A. A part b<1> covers and is glued to the part b, and the frame A is held in position by milled nuts g engaging the threaded parts of supporting arms D having bent ends d. When threading the healds and comb, the frame A is removed from the latter which is laid horizontally on the framework the parts d entering notches at d<1>, whilst rods I are inserted through the upper holes h in the heddles and are inserted in notches in the framework, two groups, H<1>, H, of heddles being formed. The warp thread extending from the roller R to the cloth roller Q is lowered into the first heddle of the group H<1> and into the first space of the comb, the second thread is lowered into the first heddle of the group H<2> and so on. Rods I are now inserted in the upper holes h and are suspended from arms J on a rod L which is rocked by a control lever O to form the shed, the rods having been withdrawn from the lower holes h<1>. The frame A is reinstated on the comb, which is then brought into working position wherein it is supported like a stilt with its bent ends entering holes in the supports P.
Patent GB-709395-A (GB)
Title: Process for the manufacture of new high molecular weight branched chain hydrocarbons
Inventor: RAY NEIL HUNTER
IPC: C08G61/04
Filed: 1951-04-12
Abstract: High molecular weight, branched chain hydrocarbons are prepared by reacting diazomethane and a minor molecular proportion of at least one higher diazoalkane in the presence of a covalent boron compound as catalyst, preferably in the presence of an organic solvent, at a temperature of 0 DEG  to 50 DEG C.  Suitable catalysts are boric esters, e.g. trimethyl, triphenyl, tri-(b -chloroethyl) and tricyclohexyl orthoborate; alkyl boranes, e.g. methyl borane; and boron halides, e.g. boron trifluoride.  Specified solvents are anhydrous ether, benzene and dioxane.  The higher diazoalkanes include diazoethane, 1-diazopentane, 1-diazoheptane, 1-diazodecane, 1-diazooctadecane and 1, 6- bis diazohexane.  The products, which have molecular weights of the order of 50,000 to 100,000, can be represented by the formula (CHR)a-(CH2)b - (CHR)c - (CH2)d, &c. where R is an alkyl group and a, b, c, d are integers.  They have little crystallinity which can be increased by stretching or cold-drawing. They are mostly soluble in hot organic solvents such as carbon tetrachloride and benzene, those made from bis diazo compounds being an exception, and are insoluble in water, alcohol and ether.  They are flexible and tough and may be pressed into transparent films. Specification 701,203 is referred to.
Patent GB-657423-A (GB)
Title: A supporting border for ladies' stockings
IPC: A41B11/12
Filed: 1948-03-23
Abstract: 657,423. Hose suspenders. BILEK, J., RENGEROVA, R., and RENGER, R. March 23, 1948, No. 8534. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 28, 1948.] [Class 141] A border of knitted fabric which may be separate from or integral with a lady's stocking for supporting the same above the knee of a wearer, and which is of the kind wherein groups of bare elastic threads, the. number and size of which depends upon the size of the thigh of a wearer and whose cross sections are preferably square, are drawn through the fabric at intervals, spaced preferably <SP>1</SP>/ 3  inch to inch apart, so that the greater part of the length of each thread bears freely against the inside face of the fabric for frictional engagement with the skin, is characterized in that each elastic thread, which preferably should not have a section exceeding 1/16 inch by 1/16 inch, does not exceed a 30 per cent elongation of its non-tensioned length when the border is being worn. The border is supported mainly by the friction between the bare elastid threads and the skin while the gripping of the low-tensioned threads is very slight and is of secondary importance. Two or more threaded parts divided by threadless parts may form a supporting border.
Patent GB-875740-A (GB)
Title: Improvements in mechanical stoking installations
IPC: F23H11/00
Filed: 1959-03-12
Abstract: 875,740. Travelling grates. BENNIS COMBUSTION Ltd., and DAWKINS, B. W. June 7, 1960 [March 12, 1959], No. 8543/59. Class 51(1). The mechanism and supports 13 of a travelling grate 2 are enclosed within the furnace brickwork or panels 16 secured to the steelwork supporting the brickwork. Air inlets 21 direct air on to the supporting frame members 13 of the grate so as to cool them. The inlets 20 may be replaced by louvred openings in the panelling 16, and the size of the inlets may be regulated. The air is drawn into the inlets 20 by natural or forced draught, or air may be blown through them.
Patent GB-1197351-A (GB)
Title: Improvements in or relating to Beds
Inventor: PEACE WALTER LESLIE
IPC: A47C21/08
Filed: 1968-02-22
Abstract: 1,197,351. Side rails for beds. MASTERPEACE PRODUCTS Ltd. 7 March, 1969 [22 Feb., 1968], No. 8584/68. Heading A4J. A side 8 for a bed comprises a rod 24 which is provided with a hook 25 and an operating lever 26 and a rod 9 which has a stop 27 and through which rod 24 extends. In the upright position of the bed-side, the pillar 6 is located between the hook 25 and the stop 27 and lever 26 extends downwardly. For movement to an out-of-way position rod 24 is pushed by lever 26 to disengage hook 25 and allows the bed side 8 to be pivoted downwardly.
Patent GB-349193-A (GB)
Title: Process of synthesising oxygenated aliphatic compounds
IPC: C07C51/14
Filed: 1930-03-18
Abstract: Oxygen containing organic compounds of the lower (i.e. first six) members of the aliphatic series are prepared by the reaction of carbon monoxide on water in the state of liquid or vapour in the presence of mixed (single-phase) catalysts containing a rare earth metal or metal compound other than cerium in association with at least one alkali or alkaline earth metal compound and one or more of the elements or compounds of the elements, copper, manganese, zinc, cadmium, lead, vanadium, chromium, molybdenum, antimony, bismuth, boron, aluminium, tungsten, silicon, titanium, zirconium and thorium. The alkali or alkaline-earth metal compounds employed are compounds of potassium, sodium, lithium, beryllium, magnesium, calcium, barium or strontium.  Instead of a rare earth metal or metal compound a mixture of rare earth metals or compounds of such metals including cerium or cerium compounds may be used.  The catalysts may be prepared as described in Specification 296,049, [Class 2 (iii), Dyes & c.].  In an example a mixture of steam and carbon monoxide is passed at 350 DEG  C. over a catalyst prepared by dissolving crude cerium carbonate containing didymium and a small amount of lanthanum and other cerite earths, in acetic acid together with zinc carbonate, barium hydroxide and aluminium acetate and precipitating with caustic soda.  The product consists of a mixture of the lower members of the fatty acids and esters.  The proportion of products of an acid character generally increases with the proportion of highly electronegative elements contained in the catalyst, and the molecular weight of the products increases with the temperature, the pressure or the volume of the catalyst.
Patent GB-512950-A (GB)
Title: Improvements in and relating to vehicle wheels
IPC: B60B9/00
Filed: 1938-03-21
Abstract: 512,950. Vehicle wheels. HOLLAND, J. R. March 21, 1938, No. 8695. [Class 144 (i)] A detachable wheel is secured to the brake drum 6 or like flange on the axle 5 by bolts &c. 9 passed through a rubber cushion 2 fitted in the cupped hub 1 of the wheel. Ferrules 4 mav be fitted in the bolt holes of the rubber block.