baber/WOPTO huggingface dataset:
Patent GB-887917-A (GB)
Title: New or improved means for checking the accuracy of the machining of engineering parts
Inventor: RANDLE WILLIAM EDWIN ROY
IPC: G01B5/245
Filed: 1958-09-16
Abstract: 887,917. Angle comparators. WHARTON & WILCOCKS Ltd. Sept. 4, 1959 [Sept. 16, 1958], No. 29612/58. Class 97(3). A device for checking the angle between two faces of a machined component comprises a base 1 having a hardened knife edge 3 recessed into its lower edge and a pair of spaced vertical bars 4 guiding a block 6 which carries a dial indicating micrometer 8. In use a master component 10 is placed with its corner against knife edge 3 and the probe 9 of the micrometer 8 is adjusted to contact the component 10, the micrometer then being set to zero. The master component 10 is replaced by a second component which is to be checked and the probe 9 engaged with its face, the reading on the micrometer 8 indicating any error. Instead of knife edge 3 the base 1 may be formed, e.g. recessed, to accurately locate the components. To check angled faces the bars 4 may be pivoted about their lower ends, a vernier scale being provided to allow setting to any desired angle.
Patent GB-983455-A (GB)
Title: Coupling for assembling slotted angle-irons
IPC: A47B57/40
Filed: 1962-08-01
Abstract: 983,455. Fastenings. S. HELLEUX. Aug. 1, 1962 [Aug. 2, 1961; March 1, 1962], No. 29615/62. Heading E2A. A coupling device e.g. for connecting angle brackets 6, 7 to an upright 5 formed respectively with equidistant slots 1a, 12 and 8, comprises a plate 1 having eyes C 1 , C 2  and an extension ending in a dovetail b engageable respectively with slots 8, 11 and 12 of the parts 5, 6, 7. The coupling is also formed with an aperture a through which a bolt 10 is inserted to engage with a slot 9. Pins 14 are inserted through the eyes C 1 , C 2  to retain the coupling in position. Various shapes of the coupling device are described including a "stay" form (Fig. 9, not shown) comprising an elongated strip formed with the eye at one end and the extension at the other, or alternatively a modification in which portions of the plate supporting the eyes are bent at right angles to each other.
Patent GB-152672-A (GB)
Title: Improvements in and relating to the storage of inflammable liquids
IPC: B67D7/32
Filed: 1920-10-20
Abstract: 152,672. Scharnagl, V. Aug. 1, 1914, [Convention date]. Governing pumps.-In a system for the storage of inflammable liquids, the space in the tank above the liquid is filled with air saturated with the vapour of the liquid, and the apparatus is so arranged that the pump will only function when the pressure in the tank is below atmospheric, so that in case of leakage and consequent dilution of the saturated air, liquid cannot be drawn off. In the form shown in Fig. 1, the underground tank 1 is provided with a rotary pump 2, and a suction pipe 13. A branch 14 leads from the suction pipe to the air space of the tank, with an interposed vacuum valve 3, which closes when the required pressure difference between atmosphere and the interior of the tank is attained.
Patent GB-665540-A (GB)
Title: Improvements in the construction of hulls of ships
IPC: B63B3/14
Filed: 1947-12-29
Abstract: 665,540. Ship plating. ALLEGRO, G. Dec. 29, 1947, No. 29647/50. Divided out of 665,444 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 29, 1947. Class 113 (ii). In a. method of hull construction, transverse elements 11, each forming a continuous frame and each having a narrow face 13 on the outside, are connected together by longitudinal elements 5 welded thereto, the longitudinal elements 5 each having one of their faces broader than and in a suitable position relatively to the narrow faces of the transverse elements, and finally, the hull plates 3, 4, are fixed by welding their adjacent edges 1, 2, to the longitudinal elements 5. The plates 3, 4 are welded to the element 5 by the method described in Specification 665,444. The narrow faces of the transverse elements 11 may be recessed to receive the longitudinal elements 5.
Patent GB-1321484-A (GB)
Title: Rotary piston machines
IPC: F01C1/16
Filed: 1970-06-18
Abstract: 1321484 Rotary positive-displacement machines ATLAS COPCO AB 18 June 1970 [18 June 1969] 29751/70 Heading F1F The subject-matter of this Specification is identical with that described in Specification 1321482, but the claims are concerned with a machine having single-toothed main and gate rotors and means for synchronizing rotation of the rotors, the profiles of the rotors being such that the fluid pressure acting on the gate rotor is maintained in the same direction throughout each working cycle.
Patent GB-805245-A (GB)
Title: A device for removing the "eyes" of potatoes
IPC: A47J25/00
Filed: 1956-10-01
Abstract: 805,245. Potato eyes &c., removing. GILCHRIST, S., and GILCHRIST, M. S. Oct. 1, 1956, No. 29814/56. Class 28 (2). Eyes &c. are removed from potatoes &c. by pressing an eye against a fluted bit 7 which then rotates as it recedes so that its tubular holder 5 recedes inside an outer tube, so that the inclined slot 10 moves along a fixed pin to provide the rotation. A spring 9 restores the bit to outward position. The device is mounted in a bracket 11 pivoted to a fixed base 13 and easily removable therefrom for convenient storage.
Patent GB-258752-A (GB)
Title: Improvements in and relating to railroad bumper posts
IPC: B61K7/18
Filed: 1925-11-25
Abstract: 258,752. Hayes Track Appliance Co., (Assignees of Hayes, S. W.). Oct. 28, 1925, [Convention date]. Buffer stops.-The buffer head 1, Fig. 1, is secured to the track by two compression members 3 and by two tension members 16 which are secured to track fixtures and anchored to sleepers in advance of the stop. The tension members extend under the rails and seat in a bearing engaging the rail base. The members 3 are channel irons and are bolted to extensions on the head 1. Their lower ends engage lugs 4<a>, Fig. 12, on a track fixture. 5 having shoulders 7 engaging the sleepers and a recess 13 for the hook of an inner anchor bar 11 spiked to the sleepers. The parts 5 are bolted to the track rails and receive tie bars 8. The tension members 16 have bent ends locked in a recess in the head 1 and have their lower ends 25, Fig. 6, bent to engage a seat on a fixture 20 secured to the rail by bolts, one of which 26 passes through the members 16. The parts 20 are connected by a pipe 27 and have a recess 13' for the hook of an outer anchor bar 11'.
Patent GB-364670-A (GB)
IPC: H01B9/02
Filed: 1930-10-06
Abstract: 364,670. Cables. NORDDEUTSCHE KABELWERKE AKT.-GES., Am Oberhafen, Neuk÷lln, Berlin. Oct. 6, 1930, No. 29889. Convention date, Oct. 5, 1929. [Class 36.] The lead sheath 3 of each core of a three-core cable is covered or partly covered with a longitudinal or helical metal band 2 which acts as an earth conductor for protective purposes. The bands 2 are preferably in metallic contact as shown.
Patent GB-709582-A (GB)
Title: Improvements in or relating to organo-mercury compounds
IPC: C07F3/10
Filed: 1951-12-21
Abstract: The invention comprises organo-mercury compounds of the general formula <FORM:0709582/IV (b)/1> wherein R represents an alkyl, cycloalkyl, alkenyl, aryl, or aralkyl radical, and a process for the preparation of the above compounds by reacting 1,2,3,6 - tetrahydro - 3,6 - endomethano - 3,4,5,6,7,7 - hexachlorophthalimide with an alkali or alkaline earth metal hydroxide to form the corresponding N-metal derivative of said imide which is then reacted with a compound of the formula RHgX, wherein R has the significance indicated above and X represents a halogen atom, e.g. bromine, chlorine or iodine. The process may be modified by forming the hexachlorophthalimide derivative by heating 1,2,3,6 - tetrahydro - 3,6 - endomethano - 3,4,5,6,7,7-hexachlorophthalic anhydride with ammonia or an ammonia producing compound, e.g. at a temperature of about 150 DEG  to 250 DEG  C.  The reaction to form the N-metal derivative may be carried out in a solvent, e.g. methanol or a mixture of methanol and dioxane, and the subsequent reaction with the compound RHoX may be carried out in a solvent by heating.  The 1,2,3,6 - tetrahydro - 3,6 - endomethano - 3,4,5,6,7,7-hexachlorophthalic anhydride used in the above process may be prepared by heating hexachlorocyclopentadiene in a Diels-Alder reaction with maleic anhydride or maleic acid.  In the example, N-ethylmercuri-1,2,3,6-tetrahydro - 3,6 - endomethano - 3,4,5,6,7,7 - hexachlorophthalimide is prepared.  The corresponding compounds are also mentioned in which R in the above general formula represents a methyl, propyl, hexyl, dodecyl, beta-chloroethyl, beta-hydroxyethyl, allyl, methallyl, propenyl, beta-chloroallyl, cyclohexyl, aminocyclohexyl, cyclopentyl, phenyl, p-bromophenyl, 41-methoxybiphenyl, biphenyl, naphthyl, benzyl, p-aminobenzyl, phenethyl, phenylpropyl, phenylbutyl or p-fluorobenzyl radical.ALSO:Fungicides comprise organo-mercury compounds of the general formula <FORM:0709582/VI/1> wherein R represents an alkyl, cycloalkyl, alkenyl, aryl or aralkyl radical, dispersed in carriers such as dusts, solvents, aqueous dispersions or other carriers.  The organo-mercury compounds may be used in combination with other insecticides or fungicides.  The radical R may represent any of the following radicals: - the methyl, ethyl, propyl, hexyl, dodecyl, beta-chloro-ethyl, beta-hydroxyethyl, allyl, methallyl, propenyl, beta-chloroallyl, cyclohexyl, aminocyclohexyl, cyclopentyl, phenyl, p-bromophenyl, 41-methoxybiphenyl, biphenyl, naphthyl, benzyl, p-aminobenzyl, phenethyl, phenylpropyl, phenylbutyl or p-fluorobenzyl radical.  A solution of N-ethylmercuri-1, 2, 3, 6-tetrahydro-3, 6-endomethano - 3,4,5,6,7,7 - hexachlorophthalimide in a mixture of acetone and water is prepared.
Patent GB-1309034-A (GB)
Title: Variable speed drive arrangements
IPC: H02P1/46
Filed: 1971-06-25
Abstract: 1309034 Control of synchronous motors SIEMENS AG 25 June 1971 [25 June 1970] 29996/71 Heading H2J A speed control, e.g. starting circuit for a synchronous motor has a frequency converter, e.g. thyristors 5 to 10 fed from a three phase supply RST, and connected via two parallel arms to the supply neutral Mp, one arm comprising star connected stator windings 1, 2, 3 in series with rotor windings 4, the other arm having star connected diodes 11, 12, 13 in series with a single-pole switch 14 (or thyristor 16) and the secondary of transformer 15. To start the motor, switch 14 is closed (or thyristor 16 turned on). For negative half cycles of the supply, one thyristor of each set of thyristors comprising the frequency converter, i.e. 5, 6, 7 and 8, 9, 10 is turned on, e.g. thyristors 7 and 10, so that current flows from the neutral Mp through the rotor winding 4 and stator winding 3. For positive half cycles of the supply, thyristors 5 to 10 block, and the current through windings 3, 4 is maintained, through the parallel path, by transformer 15, whose secondary voltage is in phase with the supply.. As the rotor turns, stator windings 1, 2 or 3 are excited in turn by firing thyristors 5, 6 or 7 resp. until natural commutation of the motor occurs, when switch 14 is opened (or thyristor 16 turned off), and thyristors 8, 9 and 10 turned on.
Patent GB-1312841-A (GB)
Title: Method and apparatus for providing continuous foam circulation in wells
IPC: E21B21/02
Filed: 1970-06-19
Abstract: 1312841 Wells &c CHEVRON RESEARCH CO 19 June 1970 [20 June 1969] 30012/70 Heading E1F In drilling or workover operations in a well, fluid circulation through tubing 20 and the surrounding annulus 24 is maintained constant during the addition or removal of joints from the tubing. During well cleaning a joint 70 depending from a power swivel 72 is connected to the tubing and foam is supplied to the swivel to flow down the tubing and up the annulus. Prior to disconnection of the joint 70 from the tubing, the tubing is supported by slips 50, foam is fed to a shell 52 so that foam from the shell is supplied to the tubing when the joint is disconnected. The joint 70 is raised, a valve 60 is closed, supply of foam to the swivel is stopped, and the joint is removed from the shell. A further joint is added to the joint 70 and lowered into the shell, the valve is opened, foam is supplied to the swivel, the joints are connected and the supply of foam to the shell is stopped. Where reverse circulation is used foam is supplied to the annulus by a pipe 42 and is discharged from the tubing through the swivel and a discharge pipe. If a well liner is to be cleaned by a solvent or acid, a slug of the solvent or acid surrounded by foam is moved up and down the liner by alternately supplying foam to the shell and to the pipe 42.
Patent GB-895032-A (GB)
Title: A sealing device for providing a fluid tight seal between two relatively movable co-axial members
Inventor: LINDOW ARTHUR LAWRENCE
IPC: F16J15/48
Filed: 1960-08-31
Abstract: 895,032. Stuffing-box substitutes. CLEVELAND PNEUMATIC INDUSTRIES Inc. Aug. 31, 1960, No. 30082/60. Class 122 (5). A seal 13 between two relatively movable coaxial members, such as the plunger 12 and the cylinder 10 of a liquid spring, comprises a packing assembly which is fixed against movement relative to one of the members, e.g. the cylinder 10, and which is compressed against the other member, e.g. the plunger 12, with a pressure higher than that of the fluid being sealed, and includes a rubber or other resilient disc 24 positioned between a pressure-plate 21 and back-up plate 22, and an annular sleeve 27 which is made of a viscous plastic material, such as polytetrafluoroethylene, and is substantially totally confined on its end faces and outer surface by the packing assembly. As shown, the disc 24 is provided with a central aperture to accommodate the sleeve 27 and with a plurality of symmetrically-arranged apertures through which pins 28 secured to the plate 21 slide to engage apertures 33 in the plate 22, the pins being sealed by viscous plastic sleeves 29. In operation, the effective area of the packing assembly 23 being less than that of the plate 21, i.e. by an amount equal to the cross-sectional areas of the pins 28, the packing assembly 23 is at a higher pressure than that of the liquid acting on the plate 21. Anti-extrusion rings 31, 32 are also provided between the rubber disc 24 and back-up plate 22. Specification 539,966 is referred to.
Patent GB-1317011-A (GB)
Title: Process for producing a mixture of silicon oxynitride and silicon carbide
IPC: C01B31/36
Filed: 1970-06-22
Abstract: 1317011 Silicon oxynitride and silicon carbide refractories DANFOSS AS 22 June 1970 [20 June 1969] 30088/70 Headings C1A and C1J [Also in Division H5] A composition containing silicon oxynitride and beta silicon carbide substantially free of SiO 2  is produced by heating to a temperature of from 1200‹ to 1600‹ C. a material including elemental silicon in an atmosphere including carbon monoxide and nitrogen, the atmosphere containing oxygen at a partial pressure of less than 10<SP>-16</SP> atmospheres. The material may also contain alpha silicon carbide. The composition may be used in the production of refractory linings.
Patent GB-1011936-A (GB)
Title: Device for the control of a roll of paper exposure installation
Inventor: ZEIBIG SIEGFRIED
IPC: G03B27/58
Filed: 1963-07-30
Abstract: 1,011,936. Feeding webs. PENTAGON DRESDENUND KINOWERKE DRESDEN VEB. July 30, 1963, No.30178/63. Heading B6B. [Also in Division G2] The paper-advancing mechanism in a photocopying apparatus comprises a lever having a toothed segment which is coupled by gearing to a transport drum, the lever being actuated by an arm thereof which bears against a cam, the camshaft also controlling a switch to shut off the driving motor. In the form shown, the toothed sector 3 is journalled to the main housing, and biased clockwise by a spring 2. On being turned anti-clockwise, it engages with gearing 35, 37 and so operates drum 38 which feeds the photo-sensitive paper strip 39 across the exposure aperture 40. An integral arm extending from sector 3 has at its lower end a wheel 4, which is caused by biasing spring 2 to bear against one of a series of differently-sized cams 5, 6, 7 mounted on a hollow shaft 10. Shaft 10 can slide on a spindle 11, and by operating a pinion 12 a selected one of the cams can be brought into engagement with wheel 4, by this means altering the length of paper advance. The shape of the cams is such that the acceleration and deceleration of the paper movement is sinusoidal, and each has a fairly wide " rest '' position (Fig. 2, not shown) so that even if the cam rotates a little further as the switched-off motor runs down, no further movement is imparted to the wheel 4, and hence the papermoving sector 3. Spindle 11 also carries contact discs 22, 23 which engage with blades 24, 25 of a switch in the circuit of the drive motor 21. The operation of the machine is started by closing switch 59. An image of the film 32 is projected so as to be reflected by a hinged inclined mirror 31 on to a ground glass inspection plate 34. Switch 57 is now closed, which causes mirror 31 to swing to a vertical position, allowing the projected image to fall on the paper 39 and so effect the exposure. Mirror 31 now pivots back into its inclined position, during which movement it actuates switch 29, so starting motor 21. This is geared to spindle 11, and so drives cam 5, 6 or 7 to operate the paper advance. After one full revolution of spindle 11 motor 21 is switched off by the action of contact disc 22 on switch blade 24. The action of contact disc 23 on switch blade 25 now energizes motor 48 which controls a paper-cutting operation via cam disc 44 and lever 43; a knife 42 on a pivoting plate 41 cuts off the end section of paper strip 39. After one rotation of cam disc 44, motor 48 is also switched off.
Patent GB-1041926-A (GB)
Title: Press brake guards
IPC: F16P3/04
Filed: 1964-07-21
Abstract: 1,041,926. Machinery guards. M. O. HOGGETT. July 20, 1965 [July 21, 1964], No. 30194/64. Heading F2J. In a brake press comprising a blade in the form of a plurality of fingers 19, each finger carries a slide 25 which projects downwardly and substantially masks the space between the blade finger 19 and die 15, and actuating means 30, for raising the slides 25, can only be operated when the machine is inoperative. Also the machine cannot be operated when the slides 25 are in the raised position. The guard actuating means 30 comprises a pivoted angle sectioned member 31 having a horizontal web 34 which engages pegs 28 on the slides 25 to lift the slides when the member 31 is tilted on actuation 41, Fig: 4 (not shown). The guard actuating means 30 is connected by a Bowden cable 48 to a bell-crank lever 50 having an arm 51 which co-operates with an extension 52 on a treadle arm 22, Fig. 3 (not shown), to prevent operation of a treadle 21 to start the machine when the guard fingers 25 are in their raised position. When the machine is working, the guard fingers 25 are prevented from being raised by the engagement of the arm 51 by the end of the extension 52.
Patent GB-261551-A (GB)
Title: Improvements relating to boring and facing machines
IPC: B23B39/02
Filed: 1925-12-02
Abstract: 261,551. Pearn, H. A., and Pearn & Co., Ltd., F. Dec. 2. 1925. Combined turning, milling, and boring machines, - In boring and facing machines of the type in which a rotary facing head having a tool slide traversed thereon is adapted to be raised or lowered for adjusting the head or for milling-operations, and in which the work tables B, C, are provided with longitudinal and transverse traversing-motions, means are provided for controlling the quick power traverse and the automatic feed motions of the tables and of the headstock. The shaft k is driven for the slow feed movement from the feed-box (not shown) through bevel gearing s, spur gearing p, worm gearing n, m, and clutch g. For the quick power traverse movements the shaft k is driven from the mainshaft of the machine through a chain wheel 23, reversing bevel gearing 18 and spur gearing 17. The two speeds of the shaft are controlled from a handle b adapted to impart either rotary or axial movement to a shaft a. For the slow speed the shaft is moved axially by rack and sector gear thus actuating the gearing h to engage the clutch g with the wheel m. In this position of the shaft a, a projection i engages a recess j to prevent the rotary movement. For the high speed the shaft a is lowered and then rotated in either direction, this movement actuating the reversing bevel gearing through lever mechanism to drive the shaft k from the chainwheel 23. The motion of the shaft k is selectively transmitted to the longitudinal or transverse table feeds or to the headstock traversing gear by means of a control handle x imparting rotary and axial movement to the shaft y. The table feeds are obtained by engaging a clutch u with a wheel w from which motion is transmitted through spur wheel 11<b>, spiral gearing 11 and' spur gears 9, 10 to the shafts 8, 8<a> actuating the transverse and longitudinal feeds respectively. The shafts 8, 8<a> are selectively driven by means of clutches 6, 7, actuated by racks 4, 5 operated by rotary movements of the handle x. The headstock traverse is obtained by engaging the clutch u with a wheel v which is connected tbrough spur gears 12, 13 and bevel gears 15 with the vertical screw 15<a>. The handle x may work in a gate to prevent incorrect engagement of the gears. A hand-wheel 28 may rotate the shaft k through gears 29, 30, for hand-setting.
Patent GB-449944-A (GB)
Title: Improvements in or relating to coupling devices for vehicles
IPC: B60D1/02
Filed: 1935-11-05
Abstract: 449,944. Couplings for vehicles. WOHLDORF, H., 41, Schleusberg, Neumunster, Germany. Nov. 5, 1935, No. 30597. Convention date, Dec. 6, 1934. [Class 103 (v)] A coupling fork 1 adapted to receive a drawbar eye 13 is provided with a hinged guide plate 2 connected by links 8 to the coupling pin 7 and supported in the raised position shown by a catch 5, which in the coupling operation, is pressed back by the end 12 of the drawbar, whereon the guide plate 2 drops carrying the pin 7 into engagement with the eye. The plate 2 is formed with converging walls 10 through which passes the hinge pin 3 mounted in the fork 1. The catch 5, pivoted in lugs 4 on the undersurface of the plate 2, passes through an opening 6 in the fork and is held in engagement by a spring 5<11>. When the plate drops, the end of the catch engages the solid part of the fork, locking the bolt 7 in coupling engagement, an extension 14 of the catch forming a handle for release.
Patent GB-681378-A (GB)
Title: Means for supplying fuel for a re-heating system of a gas turbine engine
IPC: F23R3/00
Filed: 1949-11-30
Abstract: 681,378. Gas turbine plant; jet propulsion plant. ARMSTRONG SIDDELEY MOTORS, Ltd., and ALLEN, S. Oct. 16, 1950 [Nov. 30, 1949], No. 30700/49. Class 110(iii) Fuel is supplied to the exhaust reheat chamber of a gas turbine engine by means of an ejector to which high pressure gaseous fluid, such as air from the compressor or preferably combustion products from the combustion chamber, is supplied along a passage 21 having a constriction 25. The constriction gives a pressure ratio of at least two to one so as to provide a sonic speed of flow in the constriction. Fuel is supplied from the annular chamber 29 to the annular passage 28 which is downstream of the constriction and faces partly downstream so that an ejector action, is set up. The supply passage diverges at 26 downstream of the constriction thereby producing a flow at supersonic speed. The invention is shown applied in the case of a reheat chamber of a gas turbine jet propulsion engine, a valve 22 being fitted in the passage 21. The supply passage 21 downstream of the constriction and nozzle may be coiled round the jet pipe so assisting in vaporising the fuel. Alternatively, it may pass into the interior of the jet pipe and form a coil therein. An ignition device 36 which may be as described in Specification 674,641 is fitted in the reheat chamber.