baber/WOPTO huggingface dataset:
Patent GB-850953-A (GB)
Title: Preparation of trichlor- and tetrachlorethylene
IPC: C07C17/02
Filed: 1958-01-30
Abstract: A mixture of tri- and tetra-chloroethylene containing at will 0-75% by weight of the former is prepared by passing over a fluidised solid mass having dehydrochlorinating activity and maintained at a constant temperature between 350 DEG  and 450 DEG C. a mixture of chlorine and acetylene in proportions depending on the desired ratio of C2HCl3 and C2Cl4, with an organic diluent constituted by undesired reaction products, mainly dichloroethylene, tetra- and penta-chloroethane, and tetrachloroethane, the desired mixture of products being separated from the exit gases before recycling the organic diluent. Preferably the volume ratio of chlorine to acetylene is 2-3 ; in examples a molar ratio of C2HCl3 : C2Cl4 of 66 : 34 is obtained by using a molar ratio of Cl2 : C2H2 of 2,30 ; a molar ratio of 78 : 22 by using Cl2 : C2H2 = 2,20 ; and a molar ratio of 18 : 82 by using Cl2 : C2H2 = 2,70.  The fluidised mass may have a weak dehydrochlorinating activity, e.g. active carbon, fuller's earth, or silica gel, or a strong activity, e.g. active carbon impregnated with cupric chloride and barium chloride.  Preferably 1-10% of the catalyst is removed periodically, e.g. every 24 or 48 hours, and replaced by fresh catalyst.
Patent GB-1409123-A (GB)
Title: Artificial acetabulum
IPC: A61F2/34
Filed: 1973-01-22
Abstract: 1409123 Artificial acetabulum SULZER BROS LTD 22 Jan 1973 [1 Feb 1972] 3191173 Heading A5R An artificial acetabulum comprises a rigid shell 1 having a highly resilient intermediate material 5, i.e. material having a hardness in Shore A values of less than or equal to 90, secured to the external surface 3 of the shell 1, the external surface of the intermediate material 5 being formed with anchoring grooves 6 and recesses 7. The shell 1 is made of a bodycompatible metal alloy or plastics material and has, on the surface 3, ribs (4), Fig 1 (not shown) which prevent relative movement of the intermediate material 5 on the surface 3. Wire rings 8, secured to the ribs 4 by brazing, further anchor the intermediate material 5 on the shell 1. The acetabulum is secured in a pelvis by means of a plastics bone cement 12. e.g. methyl methacrylate, which flows into artificial recesses 11 in the pelvis and forms pegs 13 and also flows into the grooves 6 and the recesses 7.
Patent GB-1277374-A (GB)
Title: Integral fan and pulley
Inventor: MCARDELL EDWARD JOHN WILLIAM
IPC: F04D29/28
Filed: 1970-02-25
Abstract: 1277374 Pulleys FORD MOTOR CO Ltd 25 Feb 1970 3230/70 Heading F2Q An integral V-pulley and fan comprises a sheet-metal member forming a V-groove 19 and a radially extending flange from which a plurality of fan blades 12 extend. The blades 12 are formed by bending over sections 20 of a sheet metal blank, and a ridge 21 is swaged through the root of each blade 12 to strengthen it. Holes 22 are formed in the blank before bending out the sections 20. A hub 13 of sintered iron is brazed to the pulley rim, and the hub may be fixed to the shaft of an alternator which may be driven by a V-belt on the pulley and cooled by the fan blades circulating air through the alternator.
Patent GB-105901-A (GB)
Title: Improvements in the Attachment of Fringe to Blinds.
Inventor: KEISER JAN
IPC: E06B9/78
Filed: 1917-03-05
Abstract: 105,901. Keiser, J. April 26, 1916, [Convention date]. Trimmings.-Fringe such as that described in Specification 100,355 for attachment to the bottom rod of a blind is provided with an enlargement 4 along or parallel with its upper edge and adapted to be slid into a slot 2 in the bottom rod 1.
Patent GB-556007-A (GB)
Title: Method and apparatus for casting diamond studded tools
IPC: B22C9/06
Filed: 1942-03-11
Abstract: 556,007. Casting diamond tools. DIAMOND COREBIT & TOOL CO., Inc. March 11, 1942, No. 3238. Convention date, Nov. 4, 1941. [Class 83 (i)] ] [Also in Group XXIII] Casting-machines.-A diamond tool is formed by positioning cutting stones D, Fig. 9, to seating openings 90 in a die 51, while applying suction to the reverse side thereof, positioning a tool shank 2 over the die, pouring molten metal into the space 15 between shank and stones, and promptly releasing the suction. The shank 2 is hollow and has slotted holes 8 at its lower edge to key with the cast metal. It may have a loose screwed engagement 66 with, and be adjusted by screws 83 in, a die sleeve 65, adapted to engage a flange 62 of the die 51 to which it is secured by pins 116. A hole for cooling water may be formed through the casting by a core 105, also held in position by the suction. If an annular tool is required a carbon core 72, Fig. 8, is fitted into the modified die 53 and this core may carry diamonds in seating openings 91. A suction of 2 to 4 pounds per square inch is applied by placing the die holder 32 on a cup 30 connected by a pipe 35 to a hand operated valve 48, Fig. 5, pressure regulating valve 49, filter 49', to arrest fragments of the cast metal passing through the holes 90, 91, and a pump 44. A number of casting devices may be arranged on one table 26 and be connected to one suction conduit 42. The suction ensures a sound casting. Any excess of cast metal is broken off or removed by boring, grinding, or turning. The tool, whether solid or annular, may have longitudinal and radial waterways 14, 16, Fig. 1.
Patent GB-787801-A (GB)
Title: Improvements relating to machines for picking hops and the like
IPC: A01D46/02
Filed: 1954-02-04
Abstract: 787,801. Hop, bean or pea picking machines. SHOTTON, W. E. May 4, 1955 [Feb. 4, 1954], No. 3282/54. Class 6(3).  A machine for picking hops, beans or peas comprises a pair of parallel picking rotors carried on oppositely rotating axles 1 and 2, Fig. 3. Each rotor has two end-discs 4 supporting spindles 5 carrying picking tines 8. Each spindle is rotated once, during each rotation of its rotor, by cam mechanism comprising an arm 10 secured to each spindle and a roller 11 carried on the arm and running in a cam-track 12 between outer and inner walls 13 and 14 of a cam-plate 15. Each tine may be secured to the flange 7a of a channelled member 7 secured to a flat part of a spindle. Alternatively, each tine may have a sleeve, which passes over a spindle and is secured thereto by a screw. The machine shown in Figs. 1 and 2 has a chassis 19, and two chain conveyers 24 provided with hooks 23 for carrying hop &c. bines 16 between picking rotors 1 and 2. Each conveyer 24 passes round idle sprockets 27, over curved guides 28, under a low central sprocket 29, over curved guides 26 and round driving sprockets 25. A belt 31 directs the bines towards the picking rotors. Picked hops &c. fall on to spaced rollers 23a and then on to a conveyer 33, which delivers them on to an inclined pocket conveyer 34. This deposits them on rollers 35 through which they fall on to conveyers 36 which deliver them into a bagging hopper 37.
Patent GB-1441108-A (GB)
Title: Cross linked polymers
IPC: A61K6/893
Filed: 1973-01-23
Abstract: 1441108 Cross-linked polymers; photopolymerizing unsaturated polyurethane derivatives C A REDFARN 22 April 1974 [23 Jan 1973 3329/73 Headings C3R and C3P [Also in Division G2] Cross-linked polymers are prepared by first reacting a saturated linear polyether based polyurethane prepolymer with at least the stoichiometric amount of an ethenoid monomer which is a hydroxy-alkyl ester of acrylic acid or methacrylic acid, or with less than the stoichiometric amount of the ester and with a sufficient amount only of a saturated aliphatic alcohol containing at least 6 carbon atoms to make up the stoichiometric balance, and thereafter curing the resultant polymer by reaction with an ethenoid monomer selected from acrylic acid, methacrylic acid, alkyl and hydroxy alkyl esters of acrylic acid or methacrylic acid, styrene and divinyl benzene by exposure to u.v. light in the presence of a photo-chemical sensitizer. The ethenoid monomer used for curing may be added to the polymer after completion of the first reaction or may be present during the first reaction in which case it may be constituted by excess over the stoichiometric amount of the ethenoid monomer used in the first reaction. In examples a polyetherbased polyurethane prepolymer is reacted in the first stage with hydroxy ethyl acrylate or hydroxy ethyl methacrylate and optionally ethyl hexanol and where further monomer is required in the curing step with methyl methacrylate or butyl methacrylate. The sensitizers may be benzoin, anthraquinone, benzophenone, benzil, diacetyl, diphenyl sulphide, tetramethylthiuram sulphide, uranyl nitrate, uranyl propionate, stannic chloride, stannous chloride and titanium chloride. Dentures and printing plates may be produced from the polymers.
Patent GB-1015277-A (GB)
Title: Improvements in or relating to a disc brake
IPC: F16D55/00
Filed: 1964-01-27
Abstract: 1,015,277. Disc brakes. SOC. D'ETUDES ET D'APPLICATIONS INDUSTRIELLES COMMERCIALES ET IMMOBILIERES "INTER - TECHNIQUES". Jan. 27, 1964 [Feb. 11, 1963], No. 3339/64. Heading F2E. A disc brake has a stirrup which straddles the disc and is constituted by a massive U-shaped element, the branch 6 of which has a continuous face carrying the pad P, the opposite branch 3 having at least one ram V detachably secured thereto. As shown the piston 10 has an extension 12 which passes through an aperture in the branch 3 and is secured thereto by a ring 13 inserted in the extension 12. The cylinder 11 comprises a rectangular base which carries the pad P<SP>1</SP> and also prevents the cylinder from rotating about the piston. The stirrup is formed with longitudinal reinforcing ribs 6 and two lateral portions 8 and is adapted to be secured in a loose manner to a wheel support. In modifications the cylinder is detachably secured to the stirrup and a number of rams disposed in parallel relation are detachably secured to the stirrup.
Patent GB-615231-A (GB)
Title: Improvements in joints for sheet piles
IPC: E02D5/08
Filed: 1946-02-01
Abstract: 615,231. Sheet piling. ACIERIES REUNIES DE BURBACH-EIGH-DUDELANGE SOC. ANON. Feb. 1, 1946, No. 3345. Convention date, Nov. 29, 1943. [Class 68 (ii)] Sheet piles having double-hooked joints of the form described in Specification 402,275, are modified to permit adjacent piles to lie in substantially different planes. As shown, the inner ends of the hooks and claws are joined by arcuate surfaces C<SP>1</SP>D<SP>1</SP>, CD, which guide the peaks S, S<SP>1</SP> of the triangular hooks e for angular displacement about the centre O defined by the abutting apices of the V-shaped portions e2. The claw surfaces D<SP>1</SP>E<SP>1</SP>, D,E are tangential to the arcuate portions of the hooks at F, F<SP>1</SP> (centred at O). The arrangement may be such that, when the sheet piles c, d are coplanar, the plane SOS<SP>1</SP> lies obliquely to their common plane (clockwise to its direction in Fig. 2), whereby sturdier hook roots are obtained; the directions of the surfaces e<SP>2</SP> may be modified (anti-clockwise to their directions in Fig. 2) to increase the hooking action. All the corners of the hooks and recesses may be rounded, and the parts k may widen towards the hooks e.
Patent GB-1573815-A (GB)
Title: Vibrator unit
IPC: H03H9/19
Filed: 1977-01-27
Abstract: The piezoelectric crystal vibrator, operating by thickness shearing, comprises a vibrating portion (1) provided with a plurality of electrodes (A1, A2) and a support portion (3) formed jointly with this vibrating portion. The support portion is formed as a single body with the vibrating portion and it has the shape of a "haft" extending outwards, laterally, from the ends of the vibrating portion. This vibrator is of high accuracy in frequency, small bulk and can be manufactured easily. It applies in a particularly advantageous manner in an electronic watch in the guise of reference element of standard frequency. <IMAGE>
Patent GB-524571-A (GB)
Title: Resilient sheets
IPC: B21D31/04
Filed: 1939-02-01
Abstract: 524,571. Spring surfaces; plate springs. COMMERCIAL INGREDIENTS CORPORATION, and DUNAJEFF, L. A. Feb. 1, 1939, No. 3384. [Class 52 (iv)] [Also in Group XXXII] A plate of resilient material has perforations 14, 16, connected by bridge-pieces 17 extending in different directions and provided with transverse corrugations 2, 3 in the plane of the plate or at an angle thereto. When used in a seat or bed padding or additional blade springs 45 can be superposed on the plate and securing holes 13 provided in its periphery. Various forms of sheet resilient material such as rubber, fibre, metal &c. are described and as shown in Fig. 10 the bridge-pieces 23 are corrugated in the plane of the sheet. The cross section of the corrugations can be of U or other shape.
Patent GB-1326173-A (GB)
Title: Apparatus for applying a coating powder to articles
IPC: B05B5/04
Filed: 1972-01-25
Abstract: 1326173 Spray producers; coating apparatus ROBERT BOSCH GmbH 25 Jan 1972 [2 Feb 1971] 3390/72 Headings B2F and B2L A spray producer which comprises a disc 10 rotatable in an electrostatic field, has a feed conduit 19 for powder fed under air pressure, which conduit has its outlet end 20 inclined at an angle of between 5 and 30 relative to the plane of the disc, the latter being provided with radial vanes 21 for producing turbulence of the powder. The disc 10 is carried by a shaft 12 rotated by an electric motor (13), Fig. 1 (not shown), which is within a device (14) which can be raised or lowered to vertically adjust the position of the disc 10. The articles to be sprayed are rotated by devices (17) and suspended from rails. The conduit 19 may have a slot shaped outlet opening.
Patent GB-1026212-A (GB)
Title: Frequency modulated communication system with improved signal to noise ratio
IPC: H04B14/00
Filed: 1963-01-28
Abstract: 1,026,212. Radio signalling. COMPAGNIE FRANCAISE THOMSON-HOUSTON. Jan. 28, 1963 [Feb. 6, 1962], No. 3421/63. Heading H4L. In an FM radio beam communication system, e.g. tropospheric, the detected thermal noise level at the receiver (inversely proportional to the receiver signal level) is signalled back to the transmitter where it variably controls the attenuation of a line through which the modulation multiplex passes, i.e. the maximum frequency modulation swing of the transmitted beam so that the signal/noise ratio at the receiver is a maximum. This maximum may be arranged if there is also known at the transmitter the intermodulation noise at the receiver (a function of the frequency swing) as well as the thermal noise. Further, a pilot frequency is passed through the attenuator and its amplitude at the receiver is by a feedback loop used for automatic gain control of the received carrier signal for keeping the output constant in spite of the variable attenuation at the transmitter. Alternatively, the receiver detected noise may in a two-way signalling system, vary the attenuation and frequency modulation produced by a multiplex communication signal together with pilot frequency sent back to a receiver at the first transmitter where the detected noise, as before, controls the transmitter modulation level. The receiver output at this first transmitter, as before, is restored to constant output by the received pilot signal. The detected noise may be modulated on one channel of the multi-channel frequency spectrum. In Fig. 4, a gain-control feedback loop maintains the signal level of the combined multichannel input and pilot frequency at a constant value, irrespective of the number of channels in use varying at any time. In all cases the receivers may use space diversity antenna systems.
Patent GB-1434145-A (GB)
Title: Process for obtaining d-penicillamine
IPC: C07C67/00
Filed: 1974-01-25
Abstract: 1434145 Resolution of DL-penicillamine DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 25 Jan 1974 [27 Jan 1973] 03489/74 Heading C2C The invention comprises a process for obtaining D-penicillamine by resolving protected D,L-penicillamine using L-lysine. Suitable protected forms are of Formulµ (I) and (II) where Ac is acyl, Z is H or together with Ac signifies diacyl, R is H, benzyl or Ac and R<SP>1</SP> and R<SP>2</SP> are H, C 1  to C 8  alkyl, C 5  to C 8  cycloalkyl or aryl. The examples describe the formation of the salt of L-lysine and D-3-formyl-2,2,5,5- tetramethyl - 4 - carboxy - thiazolidine starting from the D,L-3-formyl compound; the salt is then treated with 6N-HCl to give D-3-formyl- 2,2,5,5 - tetramethyl - 4 - carboxy - thiazolidine which, in turn, on heating with 15% HCl at 70‹ C. gives D-penicillamine. HCl (D-penicillamine is itself obtained by treating the hydrochloride with NEt 3 ). The mother liquor remaining from the crystallization of the salt of L-lysine and D-3-formyl-2,2,5,5-tetramethylthiazolidine-4-carboxylic acid is concentrated by evaporation, and the salt of L-lysine and essentially L - 3 - formyl - 2,2,5,5 - tetramethylthiazolidine-4-carboxylic acid is recovered. From this salt, by treatment with dilute hydrochloric acid, L-lysine is separated out. The L-3-formyl- 2,2,5,5 - tetramethyl - thiazolidine - 4 - carboxylic acid is racemized by heating in toluene in the presence of'acetic acid anhydride.
Patent GB-572120-A (GB)
Title: Printing machine for marking tubes or cylinders
IPC: B41F17/22
Filed: 1944-02-24
Abstract: 572,120. Printing-machines. PEACE, H.E. Feb. 24, 1944, No. 3492. [Class 100 (ii)] A machine for printing on tubes or cylinders is formed of a bed 10 on which an inked impression or type is arranged, and the tubes or cylinders are mounted in a carriage 11 which is formed with sides slotted to receive rollers 16 upon which tubes 17 are mounted, or with means tor the mounting of solid cylinders. The carriage 11 is given a longitudinal movement not greater than the circumference of the tubes by means of a pressure pad 22 operated by power or by means of a hand knob 23. The pad is formed with a felt or rubber surface 24 by means of which pressure is applied to the tubes, causing them to rotate as they pass over the inked surface. The bed is fitted with a removable table 18 which is secured accurately in position by the aid of a pressure plate 20 adjustable by means of a screw 21, and the inked surface 10 is secured to the table.
Patent GB-544835-A (GB)
Title: Improvements in or relating to composite wooden cores for hollow door panels and the like
IPC: E04C2/36
Filed: 1941-03-14
Abstract: 544,835. Doors. ACHESON, M. BACHTOLD-. March 14, 1941, No. 3546. [Class 20 (iii)] [Also in Group XXIII] A filling in a hollow door panel &c. consists of sheets 2 of inexpensive veneer spaced by single-ply wood laths 3 disposed widely apart on edge in planes perpendicular to the veneers or radial to the curves thereof, the grain of the veneers running in the longitudinal direction of the laths and secured by glue. The laths are approximately parallel and equidistant. In the case of a flat one the laths may run perpendicular to the grain of the veneer. Such assemblies may be amplified by additional laths and veneers and from such a composite block the required filling may be cut. The laths may be rended or split.
Patent GB-925678-A (GB)
Title: Physical culture appliances
IPC: A63B21/068
Filed: 1960-02-02
Abstract: 925,678. Gymnastic and exercising apparatus. F. TURNSEK. Feb. 2, 1960 [Feb. 5, 1959], No. 3702/60. Class 132 (1). Gymnastic and exercising apparatus comprises resilient means, e.g. a spiral spring R, disposed between two concentric members 1, 2, moving one within the other and mounted in a casing 4 not coaxial therewith, the relative movement of the coaxial members being indicated on a scale on the outside of the casing. As shown, a member 9 displaceable along a slot 11 in casing 4 has an external indicator 10 and carries a bell 14 with a striker member 15. Cylinder 2 is secured to casing 4 to move therewith when traction forces are applied to connecting means, e.g. cords 5, 6 secured to cylinders 1 and 2 and a finger 7 on cylinder 1 moves in a slot 8 in cylinder 2. When cylinders 1, 2 are sufficiently separated finger 7 engages member 15 to ring the bell. At the same time a circuit is completed through conductor 18, finger 7, blade 16, conductor 19 and bulb 20. One or more straps 21 are provided which can be engaged in the top, side or bottom of a door where each is held by its thickened end 23, Fig. 3. Each strap 21 carries a pulley 22. Cords 5 and 6 may engage respectively the pulleys on two straps on either side of a door for exercising, as shown in Fig. 4, or at the top and bottom of a door, Fig. 5 (not shown), otherwise cord 5 may pass through one pulley whose strap is under a door for exercising in a prone position, Fig. 6, cord 6 being connected to a head harness, or the strap may be over a door for exercising standing up, Fig. 7 (not shown).
Patent GB-1076978-A (GB)
Title: Nuclear reactor
Inventor: CHALLENDER RONALD SCOTT
IPC: G21C1/00
Filed: 1964-01-28
Abstract: 1,076,978. Reactors. SOC. ANGLO-BELGE VULCAIN S.A. Jan. 28, 1965 [Jan. 28, 1964], No. 3709/64. Heading G6C. A reactor, of the pressurized water coolant moderator type, utilizing forced flow cooling of the core includes a reactivity control system which is responsive to a pressure differential across a section of the coolant circuit; a Venturi is connected in parallel with a part of the coolant circuit and a connection is made between the Venturi throat and the control system. The system includes a piston, one side of which is exposed to the Venturi pressure and to a spring pressure, both urging the associated rod to a shutdown position, and the other side of which is exposed, e.g. to the pressure in the control chamber, i.e. immediately downstream of the core outlet face. Heat exchangers are mounted in the pressure vessel between it and the core circumference, and a plurality of Venturi tubes are mounted in parallel with the heat exchangers, each operating a separate control rod. Some of the control rods effect shutdown, and others have regulating mechanisms for effecting a graduated control. The Venturi tubes may alternatively be connected in parallel across the circulating pumps.
Patent GB-1219883-A (GB)
Title: Electromagnetic actuator
IPC: H02K33/18
Filed: 1969-01-23
Abstract: 1,219,883. Percussion tools. GULF GENERAL ATOMIC Inc. 23 Jan., 1967 [5 Feb., 1968], No. 3747/69. Heading B4C. [Also in Divisions H1 and H2] An electromagnetic actuator comprises a fixed primary coil, a movable secondary coil inductively linked to the primary coil, and an actuating element having a conductive portion inductively linked to the secondary coil so that when the primary coil is energized the actuating element is repelled with respect to the secondary coil, means being provided to damp the movement of the secondary coil. As shown, Fig. 1, a recoilless electromagnetic hammer comprises a primary coil 11 wound in a helical groove 31 in a conductive support 12, which has a gap or slit so that it does not act as a shorted turn, and secured in a easing 21 by means of an epoxy liner 32. A secondary coil 13 in the form of a conductive hollow cylinder having a longitudinal slit 36 lies within the primary coil 11, and its rear end engages a recess in an insulating disc 14 on which operates a return spring 46 and a dashpot 18. The front end of the secondary coil is provided with a layer 42 of insulating material. The actuating element (hammer) 16 is mounted in front of the secondary coil and carries a conductive portion 17 in the form of a closed ring. The primary coil is connected to a power supply via a trigger 35 mounted in handle 27 and flexible conduits may also extend through cable 33 to supply coolant to the liner 32. In operation a pulse of current is applied to the primary coil, e.g. by discharge of a capacitor bank, the resulting magnetic field linking the primary and secondary coils resulting in a secondary current the field due to which induces a current in the conductive portion 17 of the actuating element. The actuating element and the secondary coil repel one another, the movement of the secondary coil being damped by a dashpot 18. In an alternative embodiment, Fig. 2 (not shown), the primary coil is positioned within the secondary coil and the dashpot may be omitted. The actuator may also be applied to the operation of valves and switches.