baber/WOPTO huggingface dataset:
Patent GB-1298776-A (GB)
Title: A machine tool having a tool changing device
IPC: B23Q3/155
Filed: 1971-05-26
Abstract: 1298776 Tool changers BW-WEBER VERWALTUNGS GmbH 26 May 1971 [6 June 1970] 17171/71 Addition to 1238040 Heading B3B In a machine tool according to claim 1 of the main patent parent Specification wherein the tool changing device includes two tool gripping devices 208, 209 mounted for independent displacement on a carriage movable between a tool magazine and a spindle, the gripping devices being movable along paths towards a common point which coincides with a tool position in the magazine or spindle, an improvement is made wherein each gripping device is movable along a path 283 on the carriage at least part of which is curved. This ensures a smaller compact carriage and allows the gripping devices to approach a tool 206 in the magazine 204 practically at right angles thereto, to provide closer spacing of the tools. Each gripping device 208, 209 comprises a head 255, 256 having an hydraulic or pneumatic lock attachment on to a tool flange 280, and a pair of pins and rollers 264, 265, 266, 267. The rollers run in a guide groove which is made up of a rear straight position 260, 261, and a curved forward portion 262, 263 which may be larger in width than the rear portion. A pair of hydraulic or pneumatic pistons are connected to the rear pins 264, 265 to move each gripping device.
Patent GB-572198-A (GB)
Title: Improved method of and means for moulding articles from fibrous laminae
IPC: B27D1/08
Filed: 1942-12-03
Abstract: 572,198. Presses. JABLONSKY, B. Dec. 3, 1942, No. 17177. [Class 140] [Also in Groups V and XXIII] A stack of laminae provided with a binder is arranged between two pairs of interacting press tools, and pressure is exerted on the stack by the tools in two directions, viz., by a pair of main press tools in a direction perpendicular to the planes of the laminae, and by a pair of auxiliary press tools in a direction parallel to the planes of the laminae, the pressure of the auxiliary press tools being derived from the pressure of the main press tools through the mechanical interaction of the two pairs of tools. Fig. 1, shows a pair of main tools 1, 2 and a pair of auxiliary tools 3, 4, the main tools having wedge-like parts 3<1>, 4<1> which co-operate with sloping surfaces on the tools 3, 4. As the upper main tool descends, the tools 3, 4 are urged inwardly to press the edges of the stack of laminae. The height of the stack may be so chosen that first the laminae are pressed vertically by the main tools and then they are pressed both vertically and horizontally by all the tools. Fig. 3 shows similar tools with the addition of pins and wedges 10, 11, for clamping all the tools in the closed position. Fig. 5 shows a construction in which the auxiliary tools 3, 4 are forced inwardly, as the main tool 2 descends, by rollers 16 carried by knuckle levers 12, 13 pivoted to the main tools. The pressing faces of the tools may be tapered to produce a conical article and means may be provided for preventing slipping of the article during pressing. A hollow metal insert which projects from the article may serve for transmission of heat during manufacture and as a fastening means, e.g., for an airscrew blade. According to the Provisional Specification, the tools may be operated by rams.
Patent GB-203301-A (GB)
Title: Improved manufacture of white lead
IPC: C09C1/16
Filed: 1923-07-03
Abstract: Basic lead acetate is prepared by treating litharge with acetic acid with or without sodium acetate or with an acetate such as sodium acetate and dilute sulphuric acid, the strength of the acetic acid being from 4 1/2 to 60 per cent and the proportions from 16 to 22 absolute acetic acid per 100 parts of litharge, the product containing from 10 to 73 per cent of water at a temperature not exceeding 60 DEG  C.  White lead.-The basic acetate solution prepared as above is treated with a mixture of sodium or potassium or ammonium carbonate and bicarbonate, the carbonate being wholly in solution and the bicarbonate preferably partly in suspension, partly in solution, and partly added dry after the addition of the dissolved and suspended carbonates, and the operation being effected in the case of ammonium carbonates under a slight pressure of carbonic acid.  The proportion of the carbonates used is from one-fifth to two-fifths parts of the mixed carbonates to one part of litharge contained in the basic acetate, and the proportion of bicarbonate to carbonate employed may be 60 to 75 parts bicarbonate to 40 to 25 parts carbonate.  The white lead precipitate is separated, and washed with water or with normal or basic lead acetate in dilute solution for the purpose of removing any alkali carbonates adsorbed in the precipitate, and finally washed with water. Specifications 223/76, 9122/87, 6683/91, 13886/96 and 9638/12 are referred to.
Patent GB-711226-A (GB)
Title: Improvements in or relating to machines organised for treating pre-welted shoe uppers
IPC: A43D8/40
Filed: 1951-07-21
Abstract: 711,226. Lasting machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). July 21, 1952 [July 21, 1951]. No. 17321/51. Class 17(1) The welt bending means of a machine of the kind described in Specification 545,218 for bending the inner margin of the welt inside the attaching seam towards what will be the general plane of the shoe bottom, are improved. The bending means comprise, in an illustrative form of machine, a work supporting flanged roll 12 similar to that of the earlier Specification, a roll 14 which co-operates with it to grip the welt W and also serves to apply cement thereto, and a freely rotatable adjustable disc-like moulding member 20 rotated about an axis inclined to the axis of the roll 12, all so arranged that a frusto-conical portion 16 of the roll 14, which overhangs a forward edge of the rim of the roll 12, engages the inner margin of the welt inside the seam and bends it over the edge of the member 20. This latter engages the inside of the upper U as the work is fed through the machine, to urge it in the vicinity of the seam which joins the welt and upper together, against an inner face of a recessed part 10 of roll 12 and bend the free margin of the welt over the flange 22 of the roll 12 and also urge the work against the roll 14. The member 20 is so mounted as to be readily movable to an out-of-the-way position to permit introduction of the work and to permit it to be adjusted in up-and-down and in-and-out directions relatively to the roll 12. A guide finger 18 rests against the inner periphery of the welt adjacent the end face of the portion 16 of roll 14 to cause flange 22 of roll 12 to separate the welt from outside of the upper. The roll 12 is mounted on a driven shaft 24 journalled in an arm 26 pivotally mounted on machine frame 30. A gauge 40 adjustably mounted on an extension of a plate attached to arm 26 co-operates with the outer periphery of the welt to guide it to the treating rolls. Combined guides and shields 48, 50 adjustably mounted on a forward end of rigid arm 52, facilitate the presentation of the work and guard against it being caught in the machine.
Patent GB-687962-A (GB)
Title: Improvements in or relating to process for making fluorochloronitroaromatic compounds
Inventor: KOLKA ALFRED JEROME
IPC: C07C205/12
Filed: 1950-07-11
Abstract: The invention comprises chloro- and/or bromo-fluoronitroaromatic compounds having an aromatic nucleus of the benzene series, substituted by chloro and/or bromo, fluoro and nitro groups, the total number of such substituents being at least four, and comprises also the process for the preparation of the compounds by thermal decomposition of the diazonium fluoborate or fluoride, brominating or chlorinating the fluorinated nucleus and nitrating the product. Suitably the product of chlorination or bromination is fractionated and a desired fraction chosen for nitration.  Many chloro or bromo, fluoronitro derivatives of benzene, naphthalene, anthracene, phenanthrene and chrysene are specified.  In an example aniline is diazotized in fluoroboric acid solution to give benzene diazonium fluoroborate which is decomposed to fluorobenzene, chlorinated and the trichlorofluorobenzene fraction nitrated to trichlorofluorodinitrobenzene.ALSO:Fungicidal compositions comprise chloroand/or bromo-fluoronitroaromatic compounds having an aromatic nucleus of the benzene series (e.g. benzene, naphthalene, anthracene, chrysene, phenanthrene) substituted with chloro and/or bromo fluoro and nitro groups the total number of such substituent groups being at least four (see Group IV (b) for preparation) in admixture with a carrier.  Specified carriers are carbon, silica gel, diatomaceous earth, fuller's earth, talc and sulphur and liquid diluents such as ketones, hydrocarbon oils (e.g. kerosene) or halogenated hydrocarbons.  Tests are described in which the active fungicides are trichlorofluorodinitrobenzene, dichlorofluorodinitrobenzene and chlorodifluorodinitrobenzene.
Patent GB-200343-A (GB)
Title: Improvements in and relating to sugar cane mills
IPC: C13B10/06
Filed: 1922-06-24
Abstract: 200,343. Blair, A., and Webster, R. June 24, 1922. Roller mills.-Sugar-cane mills are provided with solid headstocks a bored to receive adjustable eccentric bearings f for the shafts of the rollers, the spaces between the rollers being adjusted by rotating the bearings. The bearings or bushes f are provided with flanges h having a series of gaps i with which engage the jaws of spanners j removably mounted on bolts on the headstocks. To adjust the rollers b, d with respect to the top roller c, the bolt k is removed and the spanner j withdrawn from the gaps i and inserted in the gaps above or below and the eccentric bush rotated until the hole in the spanner again registers with the bolt hole, whereupon the bolt k is reinstated to lock the parts in position. Marks may be provided on the flanges h to register with marks on the housings and indicate the distances between the rollers. The outside ends of the eccentric bearings on one side of the mill are prolonged to carry the idle driving-gearing l, l<3> and m, m<1>. The wheel l gears with a wheel l<1> on the driving-shaft l<2>, and the pinion m<1> gears with a wheel m<3> on the shaft of the top roller c, while a pinion on the other end of the latter shaft gears with pinions m<2> on the shafts of the rollers b, d. In a modification, the flanges h are provided with worm-wheels gearing with worms on hand-shafts carried by the headstocks.
Patent GB-747942-A (GB)
Title: Phenyl dihydroxybenzoic acids
IPC: C07C65/105
Filed: 1954-06-14
Abstract: The invention comprises phenyl substituted dihydroxybenzoic acids in which one hydroxyl is ortho to the carboxyl group and the other hydroxyl is meta to the carboxyl group and is para to the first hydroxyl when the phenyl group is meta to the first hydroxyl, i.e. 3-phenyl-2:5-dihydroxybenzoic acid, 4-phenyl-2:5-dihydroxybenzoic acid 5 - phenyl - 2:3 - dihydroxybenzoic acid and 6-phenyl-2:5-dihydroxybenzoic acid. The compounds are made by hydrolysing the corresponding halogenated phenyl-2-hydroxybenzoic acid, suitably by heating at 50 DEG  to 180 DEG  C. at atmospheric or superatmospheric pressure, in an aqueous solution of alkali metal hydroxide such as sodium hydroxide.  In examples the above phenyl-dihydroxy-benzoic acids are made by hydrolysis of (1) 5-bromo-3-phenyl-2-hydroxybenzoic acid; (2) 5-bromo-4-phenyl-2-hydroxybenzoic acid; (3) 3-bromo-5-phenyl-2-hydroxybenzoic acid; and (4) 5-chloro-6-phenyl-2-hydroxybenzoic acid.  Halogenated phenyl - 2 - hydroxybenzoic acids used as starting materials in the above process are made by halogenating a phenyl-2-hydroxybenzoic acid in glacial acetic acid, suitably by reaction with bromine, chlorine or iodine chloride at an elevated temperature.
Patent GB-592343-A (GB)
Title: Antenna arrangements
IPC: H01Q1/28
Filed: 1943-10-22
Abstract: 592,343. Antenna arrangements. STANDARD TELEPHONES & CABLES, Ltd. Oct. 22, 1943, No. 17458. Convention date, March 23, 1942. [Class 40 (v)] An antenna for use in aeroplanes comprises a pair of arms 10 and 11, each an odd number of quarter-wavelengths long and mounted at one end on a hollow metal strut 12 extending vertically. from the fuselage, the arms being conductively joined to the strut and arranged to extend in a direction such that in flight they lie in the plane of polarization of the energy to be picked up or radiated, e.g. the plane of the arms may be parallel or substantially so to that of the wings of the aircraft. The examples shown are intended to be mounted above the fuselage in a low wing monoplane having a conducting skin and in order to render the antenna substantially non-directional the arms 10 and 11 are disposed at an angle to each other of about 80 degrees. This gives an elliptical response curve having a ratio of major to minor axis about 2.5 : 1 for the antenna alone, but the curve is modified due to the aircraft fuselage so as tb be approximately circular in a horizontal plane when the aircraft is flying on a straight course. Connection to the arms 10, 11 is effected through conductors 14; '15 emerging from strut 12 and attached to the arms a short distance (about 6 inches' with the antenna operating at 100 megacycles) from the vortex of the V-shaped structure formed by the arms. The forms shown in Figs. 4 and 5 are said to give improved non-directional characteristics. If desired, curved arms having shapes approximating to those shown could be employed. It is stated that the angles between the arms or the inclined portions thereof may vary between 40 and 120 degrees, that the arms may be mountedfrom 0.07 to 0.15 wavelength above the fuselage, and the point of connection of conductors 14 and 15 to the arms may be from 0.02 to 0.06 wavelength from the junction of the arms. The members 10, 11, 12 may be formed of beryllium-copper alloy sheet and are preferably streamlined, the structure maintaining its performance in rain and ice conditions. In the case of a high wing monoplane, the antenna would be arranged below the fuselage. The antenna described is said to respond satisfactorily over a range from 96 to 104 Mc. without modification of the antenna or its connections.
Patent GB-1393517-A (GB)
Title: Preparation and use of unsaturated organo-tin mercaptides
IPC: C08L1/00
Filed: 1973-04-11
Abstract: 1393517 Unsaturated organotin mercaptides RHONE-POULENC SA 11 April 1973 [12 April 1972 14 March 1973] 17465/73 Heading C2J [Also in Division C3] An unsaturated organotin mercaptide is prepared by (a) reacting, to form an intermediate, x mols. of HS-X-COOH where X is C 1-4  alkylene or phenylene with y 1  mols. of HO-Y-OH or a mixture thereof with at least one of y 2  mols. of HO-Y<SP>1</SP>-OH and y 3  mols. of ROH where Y is a divalent C 1-10  aliphatic hydrocarbyl or C 5-6  cycloaliphatic radical and has at least one of an ethylenic and acetylenic bond and no more than two of each, Y<SP>1</SP> is C 1-10  alkylene or C 5-6  cycloalkylene, R is C 1-8  alkyl or alkenyl, C 5-6  cycloalkyl or cycloalkenyl, or phenyl-(C 1-4  alkyl) and x, y 1 , y 2  and y 3  are subject to the following inequalities and (b) reacting the intermediate with z 1  mols. of R 1 R 2 SnO or R 1 R 2 SnCl 2 , or a mixture of either thereof with z 2  mols. of a stannoic acid monomer or polymer thereof of recurring unit R 1 SnO 1 . 5  or with R 1 SnCl 3 , R 1 Sn(OH)Cl 2  or R 1 Sn(OH) 2 Cl where R 1  and R 2  are C 1-10  alkyl and x, z 1  and z 2  are subject to the following inequalities When any or all of y 2 , y 3  and z 2  are 0, the above inequalities become considerably reduced. The reactions may be effected in a water-immiscible solvent with removal of water by azeotropic distillation. Step (a) may be effected in the presence of an acid catalyst and step (b) in the presence of NH 3  or an amine as HCl acceptor. In the examples 2-butene-1,4-diol  isobutyl alcohol, 2-butyne-1,4-diol, thioglycollic acid, #- mercaptopropionic acid and di-(n-butyl)- and di-(n-octyl) tin oxides are used as reactants and the products may typically, as in Example 1, consist of groups of formulae and also, as in Example 4, of formula The compounds are useful as stabilizers for halogenated vinyl resins.
Patent GB-530075-A (GB)
Title: Improvements in or relating to apparatus for dropping bombs from aeroplanes
IPC: B64D1/04
Filed: 1939-06-15
Abstract: 530,075. Bomb-dropping apparatus. PANIZZA [nee COLOMBO], V., COLOMBO, F., COLOMBO, P. A., and COLOMBO, L. June 15. 1939, No. 17532. Convention date, July 2, 1938. [Class 9 (ii)] A spring or equivalent motor 20, Fig. 2, controlled by the pilot through means 1<SP>1</SP> acting on a governor 40 for adjusting the speed rotates a relay device 30, 32 connected to several independent spring or equivalent motors 51, Fig. 3, each of which controls its own pile of bombs B, B<SP>1</SP> in the rack to release one at a time from each pile in succession. In the form shown, the spring motor 20 drives a drum 30 with helically arranged pins 31 for engaging at equally-timed intervals the fingers 32 which are each connected to a lever 50, Fig. 3, controlling the action of an auxiliary motor 51. The drum 30 also drives through gearing a centrifugal governor having spring arms 44 with weights 43 the outward movement of which against the action of springs 46' is controlled by a conical member 47 slidably adjusted by the means 1<SP>1</SP>. Each auxiliary spring motor 51 acts through an automatic-release device 54 to rotate a cam 58 controlling a pair of bell-crank levers 57 connected to pivoted members 56 for releasing a bomb B and permitting the next bomb B<SP>1</SP> to fall into the place previously occupied by the bomb B. Handcontrolled means 75 is provided for releasing the stops 56 to permit of recharging the bomb rack S, Fig. 6, from a container 80 attachable to the bottom of the rack and furnished with a hydraulic ram 82 operated by a hand-pump 84.
Patent GB-1419408-A (GB)
IPC: E06B1/38
Filed: 1973-04-12
Abstract: 1419408 Glass partition; squash court ELLIS PEARSON & CO Ltd 3 April 1974 [12 April 1973] 17571/73 Headings B1A and E1W A wall is formed from a plurality of glass panels 11-15 arranged edge-to-edge with the wall's periphery being engaged in a resiliently lined, channel sectioned frame 16, 17, 19, 20 and the abutting edges of the panels resting against a resilient strip 23 on pillars 21, 22, all of the pillars being disposed on the same side of the wall. A door 13 comprises a panel which is pivoted to, but does not engage in, the top and bottom channels. The wall may be used in a squash court.
Patent GB-598534-A (GB)
Title: Process of producing nitric oxide
IPC: C01B21/30
Filed: 1943-10-25
Abstract: In obtaining nitric oxide from gaseous mixtures comprising nitrogen and oxygen by high-temperature heating followed by quenching, the rapid cooling, preferably within 0.1 second, is effected by forcing the highly heated reaction a bed of the above described refractory bodies, which have a mean volume less than that of a sphere of two inches diameter, and accordingly present to the reaction mixture at least 22 square feet of surface area for each cubic foot of volume of the bed.  Preferably, the reaction mixture passes serially through a preheating zone, a reaction zone and a chilling zone, the preheating and chilling zones each consisting of a bed of the above described refractory bodies, and the direction of the gases through the system being periodically reversed.  The refractory bodies are preferably chaotically assembled and may consist of one of the compounds Al2O3, Cr2O3, ZrO2, ZrO2, SiO2, CaO, MgO, MgO.Al2 O3 (spinel) &c.  As shown, a blower 1 forces atmospheric air through a valve 2 and inlet 3 into chamber 4 and from thence through a layer of the refractory bodies 6, the upper layers of which are heated by a prior operation to at least 3400 DEG F., say 4170 DEG F., a reaction space 7, 8, 9 and a layer of the refractory bodies 10, a portion of which has a temperature of say below 300 DEG F., preferably atmospheric temperature, the gas <PICT:0598534/III/1> containing nitric oxide leaving chamber 12 via exit 13, valve 2 and pipe 14 to the recovery system.  Sufficient fuel oil, natural gas or manufactured gas is introduced into the space 7 through a port 17 to maintain a reaction temperature of, say 4160-4900 DEG F. At chosen intervals valve 2 is rotated through 90 degrees the direction of the gases through the system being thereby reversed. During the reverse flow, the fuel oil &c. is caused to enter the space 9 through a port 19.  Operation in a similar apparatus on a smaller scale employing temperatures of 3600-4000 DEG F. is also described.  Instead of being empty, the spaces 7, 8, 9 may be filled with relatively large lumps of refractory material.
Patent GB-562481-A (GB)
Title: Improvements in electric couplings
IPC: H01R13/70
Filed: 1942-12-10
Abstract: 562,481. Two part couplings combined with switches. SADLER, A., and BRITISH GENERAL MANUFACTURING CO. (1941), Ltd. Dec. 10, 1942, No. 17596. [Class 38 (i)]. [Also in Group XXXVII] A socket coupling-member is provided with a switch comprising a sliding' block f having mounted on it rectilinearly moving contacts formed of pairs of metal cups h, each pair pressed apart by a helical spring, the cups engaging recesses j<3> in the fixed contacts i in the closed position and other recesses b<2> in the insulating body b in the open position. This engagement together with operation by a sliding bar g having knobs or buttons m pressing on springs that act on an abutment g<3> in the block f provides a snap action. The buttons m are arranged on the joint between the two parts of the body b. A central partition a separating the contacts is'formed with bosses r to receive screws q that fix the body parts together.
Patent GB-963103-A (GB)
Title: Improvements relating to power transmission chain drives
Inventor: SCHARFF RICHARDT FLORENTIN
IPC: F16H7/06
Filed: 1963-05-03
Abstract: 963,103. Conveyer chains. F. L. SMIDTH & CO. A.S. May 3, 1963, No. 17649/63. Heading B8A. [Also in Division F2] A chain has links 12 each comprising a block 13 with two prongs or bars 14 extending sideby-side rigidly from it, the prongs of one link being pivoted by a pin 18 to the block of the next link. The face of the block engaging a chain wheel 2 has a longitudinal groove whose sides 16 converge towards the groove bottom. In a bucket conveyer, the buckets are slung between two similar chains by means of bolts engaging holes in the blocks 13.
Patent GB-761537-A (GB)
Title: Process for the production of a silicon-containing protective layer adhering even at high temperatures on articles of iron and steel, and iron and steel articles having such layer
IPC: C23C16/08
Filed: 1952-07-14
Abstract: Articles of iron and steel are provided with a silicon-containing protective layer containing 6-11 per cent silicon on the surface by dipping in, or cladding, cementation or sintering with an iron-silicon alloy, or by a halide diffusion process.  In this latter process, the diffusion treatment with a silicon-halogen compound is interrupted after a short time, and the protective layer formed subjected to diffusion annealing (e.g. at 1150-1200 DEG C. where no chromium, tungsten or molybdenum is present) until the silicon content of the surface layer has been reduced below 11 per cent, the process being repeated until the protective layer is of the desired thickness.  The protective layer is stated to be firmly adherent at temperatures up to 1000 DEG C. and suitable for the application of a second silicon-containing layer, e.g. of 14 per cent silicon, preferably by halide diffusion at 1150 to 1200 DEG C. followed by quenching to 650 DEG C. to minimize equalization between the two silicon-containing layers.  Specification 419,057 is referred to.