baber/WOPTO huggingface dataset:
Patent GB-787456-A (GB)
Title: Aetiocholane derivatives
IPC: C07J75/00
Filed: 1955-06-21
Abstract: The invention comprises 3a -formyloxy-17b -acetoxyaetiocholane and the preparation thereof by treating 3a -formyloxy-pregnan-20-one with an organic peracid in the presence of an inert organic solvent.  The aetiocholane product may be recovered from the reaction mixture by separating the acid present and removing any unreacted 3a -formyloxy-pregnan-20-one with Girard's reagent T.  Suitable organic peracids are perphthalic, and perbenzoic acids, and a suitable inert organic solvent is ether.  3a -Hydroxy-17b -acetoxyaetiocholane may be prepared by the alcoholysis in the presence of sodium acetate of 3a -formyloxy-17b -acetoxyaetiocholane prepared as above.  Two detailed examples are given.  Testosterone acetate is obtained by treating 3a  - formyloxy - 17b  - acetoxyaetiocholane with N-bromosuccinimide in the presence of water and an oxidizable primary or secondary alcohol i.e. the process claimed in Specification 760,362, to form 4-bromo-17b -acetoxyaetiocholan-3-one which is then dehydrobrominated by means of alkyl carbazates, i.e. the process claimed in Specification 722,166, [Group VI].  Specification 787,455 also is referred to.
Patent GB-1531195-A (GB)
Title: Container assembly and method for attaching a flexible tube to a container
IPC: F16L47/00
Filed: 1977-04-29
Abstract: 1531195 Pipe couplings BAXTER TRAVENOL LABORATORIES Inc 29 April 1977 [14 July 1976] 17980/77 Heading F2G A tube 20 which is fitted over a stub 11 on a container 10 is held thereon by a ring 25 of rubber fitted around the tube end and a retainer cap 30 tightly fitted over the ring 25 and provided with an annular lip 31 to prevent axial movement of the ring 25, the cap 30 having a flange 33 which is fusion bonded to an abutment 13 on the neck 12 of the container.
Patent GB-440412-A (GB)
Title: Improved means for the control of power transmission means comprising hydraulic gears
IPC: F16H45/00
Filed: 1934-06-19
Abstract: 440,412. Controlling motor vehicles. KLEIN, SCHANZLIN, & BECKER, AKT.- GES., Frankenthal, Pfalz, Germany. June 19, 1934, No. 18091. Convention date, June 19, 1933. Drawings to Specification. [Class 97 (v)] [See also Group XXIX] In a motor vehicle transmission comprising a hydraulic torque converter of the Fottinger type and a hydraulic or mechanical clutch, automatic means being provided for determining whether the converter or clutch is in operation, additional non-automatic control means is also provided, the arrangement being that when the throttle lever of the engine is displaced past its full throttle position or in the opposite direction past its no-load position, a change over from the clutch to the converter takes place.
Patent GB-1425438-A (GB)
Title: Combustion apparatus air supply of gas turbine engines
IPC: F23R3/04
Filed: 1974-04-25
Abstract: 1425438 Gas turbine combustion apparatus GENERAL MOTORS CORP 25 April 1974 [27 Aug 1973] 18142/74 Heading F1L Gas turbine engine combustion apparatus having an annular liner 10 defined by outer, inner and upstream walls 11, 12, 15 respectively includes a flow dividing diffuser 24 extending from the compressor outlet guide vanes 23 and having a passage 36 for diverting a portion of the air directed towards upstream wall 15 into the flow-path 14 adjacent inner wall 12. Air distribution is thus improved during conditions of varying compressor outlet pressure and velocity. Diffuser 24 includes a diffusing passage 40 directed toward diversion passage 36. The proportions of air flowing through the various passages are specified.
Patent GB-375078-A (GB)
Title: Improvements in process of manufacturing sugar
IPC: C13B20/02
Filed: 1931-06-23
Abstract: Raw cane or beet sugar juice is heated with lime and ammonium carbonate along with green syrup from a previous operation.  The mixture is carbonated to reduce the alkalinity to 0,05 per cent of lime, filtered, again treated with ammonium carbonate, evaporated to a thickened juice, and again carbonated to 0,02-0,04 per cent of lime.  The juice is then submitted to sulfitation, filtered, evaporated further, sulfitated, and again filtered.  The thick juice is then passed to the usual vacuum pan and centrifugal separator. Part of the molasses is returned to the first lime separation tanks, while the remainder is conducted to a second vacuum pan and separator to give a second product sugar and end molasses.  The second product sugar may be returned to the juice going to the first vacuum pan for further treatment.
Patent GB-380837-A (GB)
Title: Apparatus for machining rolls for rolling mills and the like
IPC: B23C3/34
Filed: 1931-06-24
Abstract: 380,837. Machining grooves in Pilgerrolls &c. MANNESMANNRÍHRENWERKE, 1B, Berger Ufer, Dusseldorf, Germany. June 24, 1931, No. 18260. Convention date, Feb. 23. Addition to 353,829. [Classes 83 (ii) and 83 (iii).] Planing.-The apparatus described in the parent Specification for machining circumferential grooves in Pilger and like rolls is modified by the provision of means arranged to impart supplementary radial displacement to the tool holder in order to modify the roll profile such as by the formation of depressions in e the normally circular part c, a, c of the profile. For this purpose a pair of oppositely disposed supplementary cams 18a are arranged to operate similarly to the main cams 18 to impart radial movement to the tool holder. The supplementary cams may be adjusted similarly to the main cams by gearing driven from the spindle 37, Fig. 2. If desired, the adjustment of the supplementary may be effected independently of the main cams. Additional supplementary cams may be provided to produce other modifications of the roll profile.
Patent GB-1224133-A (GB)
Title: Improvements in or relating to traffic signals
Inventor: JENSEN WAYNE EMIL
IPC: G08G1/096
Filed: 1969-04-09
Abstract: 1,224,133. Road signals for controlling traffic. W. E. JENSEN. 9 April, 1969 [23 Sept., 1968], No. 18264/69. Heading G4Q. A traffic signal comprises a movable screen between a lens and a lamp, so that while the lamp is switched on, a progressively changing illuminated area of the lens indicates the remaining fraction of the illuminated period of the signal. As shown, roller 54 carries a flexible opaque sheet 52 which is unrolled by flexible connectors 58 which wind on to roller 66 driven by electric motor 74. The drive for the roller 66 includes solenoid 76, linkage 82, 84, and clutch 70. A torsion spring 90 allows retraction of the sheet 52 on to the roller 54 when the light is extinguished. Leads 98 are connected so that the motor and solenoid operate in the same sequence as the light. The motor, screen, and driving mechanism are mounted on a frame 42 which may be placed behind the amber-coloured lens of a traffic light signal. In an alternative arrangement, Figs. 6, 7 (not shown), the motor is coupled directly with the roller 66 and the solenoid and clutch are omitted.
Patent GB-664206-A (GB)
Title: Improvements relating to cycle handle-bar clips
Inventor: REYNOLDS ANTHONY ARTHUR
IPC: B62K21/12
Filed: 1949-07-12
Abstract: 664,206. Handle-bars. REYNOLDS TUBE' CO., Ltd. June 22, 1950 [July 12, 1949], No. 18364/49. Class 136(iii) A cycle handlebar clip a has combined with it a screw d adapted to effect both tightening and slackening of the clip. The screw d is inserted through a pair of lugs c formed at the adjacent ends of a divided clip a. Axial movement of the screw relative to one of the lugs is prevented by a split ring e which is sprung into a groove formed adjacent to the-head f of the screw. The threaded end of the screw engages a rotatable nut g which is anchored to the other lug by a spring ring or, as shown, by expanding the inner end of the necked portion of nut over a washer h.
Patent GB-1510273-A (GB)
Title: Reflectance spectroscopy standards
IPC: G01N21/47
Filed: 1976-05-05
Abstract: 1510273 Spectroscopy TECHNICON INSTRUMENTS CORP 5 May 1976 [9 June 1975] 18388/76 Heading G2J A diffuse reflectance standard for diffuse reflectance spectroscopy is composed of a fired ceramic material. As exemplified the material may be of the following composition:- and have sufficient thickness to render it opaque.
Patent GB-1293046-A (GB)
Title: A device to protect against the connection of a battery with the wrong polarity
Inventor: KVAPILIK PETR
IPC: H02H11/00
Filed: 1970-04-17
Abstract: 1293046 Protective arrangements PALMAGNETON NARODNI PODNIK 17 April 1970 [18 April 1969] 18400/70 Heading H2K An arrangement for preventing damage to an electrical system, e.g. of a motor vehicle, should a battery 1 be connected with the wrong polarity, comprises a diode 4 connected in series with, or across, the winding 3 of an electromagnetic relay having contacts 2 which remain open when the polarity is incorrect, since the blocking action or short circuiting action of the diode prevents energization of the winding. When the diode is connected across the winding, a resistor or a fuse is connected in series with the diode and winding, Fig. 3 (shown). A switch 5 may be provided.
Patent GB-1460946-A (GB)
Title: Eye examining instrument
IPC: A61B3/02
Filed: 1974-04-26
Abstract: 1460946 Eye examining apparatus TROPEL Inc 26 April 1974 [9 May 1973] 18402/74 Heading G2J An eye examining instrument having an optical system including an eye-piece 11 for alignment with an eye to be examined, further comprises a viewable target system having second and third eye-pieces 12, 13 arranged on opposite sides of said optical system to be used in turn with the eyepiece 11, a pair of identical, slightly blurred-image targets mounted at the focal points of the eyepieces 12, 13 and viewable by the eye not being examined, a sharp-image target having an image content which corresponds with that of the  blurred-image targets and being viewable through the eye-piece 11, together with means for effecting optical movement of the sharp-image target until it appears slightly blurred to the eye being examined.
Patent GB-1473841-A (GB)
Title: Apparatus and process for firing a furnace
IPC: F23C5/00
Filed: 1974-07-16
Abstract: 1473841 Burners J W MIDDLEMAS and E C JOPE 16 July 1974 [17 April 1973] 18521/73 Heading F4T An apparatus for firing a furnace comprise a burner 14, with a liquid or gas fuel injector 12, a cowl 4 having a double-walled section 18 surrounding the injector, the inner wall being provided with apertures 5 and a gas supply 1 communicating with the space between the walls. The burner is incorporated in the wall of a shaft kiln 15 charged with particles of limestone, dolomite, or magnesite 13, and gas is supplied to a gasifying chamber 16 from ducts 2, 6' through inlets 10, to be mixed with fuel issuing from injector 12, the mixing taking place adjacent the entry point of the kiln. A duct 1, provided with a sight hole 8, supplies recycled gas to the interior of the cowl via the space 21 in the double wall, and apertures 5. The supply of gas from ducts 6, 1, 2, is regulated by valves 22, 23, 24 and 3. Air can be admitted into cowl 4 by means of a movable control plate 7, which is secured by a locking pin 11.
Patent GB-589297-A (GB)
Title: Improvements in machines for winding yarn packages
IPC: B65H54/54
Filed: 1944-09-28
Abstract: 589,297. Winding yarns. SCRAGG, Ltd., S. & E., and ARMES, C. L. Sept. 28, 1944, No. 18546. [Class 120 (ii)] A yarn package is tapered by holding it above a driving drum with the axis of the package spindle in a vertical plane disposed at an angle to the vertical plane passing through the axis of a reciprocating bar carrying a thread guide. A spindle C upon which the yarn package is built is held obliquely across a friction driving drum A by slotted arms E, adjustable for length, while a guide G is traversed in a line parallel to the drum shaft B by a bar J.
Patent GB-1535294-A (GB)
Title: Electric dc supply circuits for intermittent loads
IPC: G05F1/10
Filed: 1976-05-06
Abstract: 1535294 Supplying D.C. Ioads on vehicles WESTINGHOUSE BRAKE & SIGNAL CO Ltd 12 April 1977 [6 May 1976] 18575/76 Heading H2H To supply continuous 7 and intermittent 8 auxiliary loads from the traction batteries of a vehicle, terminals 2, 4 are connected across the chains of battery cells and terminal 3 is connected to an intermediate point in the chain. Unit 1 is a transistorized D.C. chopper. If loads 8 draw excessive current for the chopper 1, the latter makes itself non-conducting and the fall in voltage at 5 causes the diodes 9-11 to conduct to supply the larger current required via them. The battery cells between 2 and 3 are subject to greater drain than the others, so diode 12 and current-limiting resistor 13 are provided for trickle-charging. A thyristor may be provided in series with the diodes 9-11, controlled to, e.g. minimize some fluctuations.
Patent GB-572690-A (GB)
Title: Improvements relating to the removal of carbon disulphide from hydrocarbon liquids
IPC: C01B31/26
Filed: 1943-11-09
Abstract: Carbon disulphide is removed from benzole or other impure hydrocarbon liquid by extracting with dimethylamine, mixed, if desired, with a strong alkali such as caustic soda, caustic potash or lime.  The carbon disulphide is thus converted to a dithiocarbamate more soluble in water than in the hydrocarbon. The dithiocarbamate may therefore be separated, decomposed with acid, the carbon disulphide distilled off and the dimethylamine recovered by distilling the residue with alkali.  In examples, benzole is agitated with aqueous dimethylamine with or without caustic soda, and the bottom layer of dithiocarbamate solution is drawn off and acidified with sulphuric acid.  Carbon disulphide is distilled off and the residue distilled with caustic soda or lime to recover the dimethylamine.  Specifications 2149/12, [Class 2 (iii)], and 467,581 are referred to.
Patent GB-1157543-A (GB)
Title: Improvements in or relating to Web Feeding Devices.
Inventor: LEE RONALD HENRY
IPC: B65H21/00
Filed: 1967-04-22
Abstract: 1,157,543. Typewriters &c. INTERNA. TIONAL COMPUTERS Ltd. 22 April, 1967, No. 18614/67. Heading B6F. [Also in Division B8] Web-feeding apparatus comprises means for detecting a break in or exhaustion of the web, and means for locating the trailing end of the web with its side edges aligned with the side edges of the remaining part of the web or a new web to enable the webs to be joined to form a continuous web. As employed for feeding continuous stationery to a printer, the web is fed from a supply 1 by sprockets 5 engaging edge perforations 9 in the stationery, the sprockets being driven from a motor 8 through a control device 7 including clutches to enable the feed to be arrested. The web edges are engaged by transversely-adjustable feelers 14 which, if a break occurs in the web due to one or other the edges being damaged, or a complete break occurs, or the web supply is exhausted, operate micro-switches 13 to actuate the control device 7 so as to arrest the feed. When this occurs, two blocks 17 are moved inwardly beneath the web edges. Each block 17 has four pins spaced according to the perforation spacing, so that the trailing end of the web in use can be placed over the top pairs of pins and the leading end of a new web or the severed end of the supply web can be placed over the lower pairs of pins. Joining of the two webs is now effected by an adhesive strip, or by adhesive if the two web ends overlap. In a modification, a transversely adjustable block carrying a feeler such as 14 has four holes along the line of feed of the web and spaced corresponding to the web perforations. When the feed is arrested by operation of the feeler, two blocks each with two pins fitting into the holes can be used to align the ends of the two webs. For unperforated webs, clamping devices which align the side edges of the webs may be used instead of the pins. The apparatus may be used with multi-ply webs. If a web with one row of feed perforations is employed, a single pin-bearing block 17 would be required.
Patent GB-823462-A (GB)
Title: Improvements in the preparation of graft copolymers
IPC: C08F255/02
Filed: 1957-06-13
Abstract: Graft copolymers are prepared by reacting an activated polyethylene obtained by subjecting polyethylene to ionizing radiation of at least 1 megarep with a polymerizable organic monomer, such as styrene or vinyl acetate.  The Specification contains a list of other suitable monomers.ALSO:Graft copolymers are prepared by reacting an activated polyethylene obtained by subjecting polyethylene to ionizing radiation of at least 1 megarep with a polymerizable orgnic monomer, such as styrene or vinyl acetate.  The Specification contains a list of other suitable monomers.
Patent GB-244044-A (GB)
Title: Improvements in obturating devices for pipes and the like
IPC: F16L29/02
Filed: 1925-07-22
Abstract: 244,044. Prost, A¯nÚ, Les Fils de. Dec. 2, 1924, [Convention date]. Junction pipes; tapered spigot-and-socket joints; with valves.- In a pipe coupling valve arrangement of the kind comprising a ball or like valve such as 3, Fig. 1 opened against a spring 4 by the conical end or nozzle 6 of a pipe when coupled up, and secured by a coupling union nut 7, the movable nozzle 6 is provided with a connecting-head arranged to supply a plurality of pipes 15. The remote ends of such pipes may each be fittted with a ball valve actuated by coupling means. The end 9 of the nozzle 6 is serrated, and an embedded ring 11 shrunk on the nozzle 6 retains the union nut 7. Fig. 4 shows an arrangement in which the valve casing is in two parts 30, 31 screwed together with an intermediate pusher member 32 guided in two parts and having a rib 34 moving in a recess between the parts. The conical recess 5 is adapted to receive the conical nozzle 6.
Patent GB-167066-A (GB)
Title: Manufacture of aralkyl esters of 2-phenyl-quinoline-4-carboxylic acid
Filed: 1920-07-05
Abstract: 2-phenylquinoline-4-carboxylic acid, or a salt or halide thereof, is esterified with an aralkyl compound.  The sodium salt of the acid may be suspended in acetone and heated while benzyl chloride is gradually added.  When the reaction is finished, the mixture is evaporated to dryness, mixed with water, and the ester extracted with benzene, ether, &c.  The solution is washed with sodium carbonate solution and water and dried.  On introducing dry hydrogen chloride there is precipitated the hydrochloride of the ester, an alcohol solution of which can be treated with solid sodium carbonate to free the ester. In another method, the chloride of the acid, benzyl alcohol, and benzene or toluene are boiled together, cooled, agitated with sodium carbonate solution and water, dried, and treated with dry hydrogen chloride as above described.  In other methods, a solution of the acid in the aralkyl alcohol is treated with dry hydrogen chloride or heated with a little sulphuric acid.  The esters may be used medicinally.
Patent GB-862770-A (GB)
Title: Automatically operating bottle packing machine
IPC: B65B21/16
Filed: 1958-06-12
Abstract: 862,770. Packaging-machines. NIEHLER MASCHINENFABRIK G.m.b.H. June 12, 1958 [July 12, 1957 ; April 18, 1958], No. 18835/58. Class 94(1). Bottles are packed into compartments 26 of a magazine, before being released into a container 5, by a pusher 3 controlled by an electric metering device 7. A conveyer 2 moves -the bottles until the device 7 switches on a hydraulic pump 8 when a ram 9 causes the pusher to transfer the bottles to the magazine. A feeler 13 is engaged by an end 4 of the pusher and actuates a pump 11 which returns the pusher. When the magazine is full a feeler 14 causes a pump 15 to operate a jack 16 and raise the container 5. The engagement of one stop 17 with another causes apertures beneath the bottles to open and the bottles fall into the container. The weight of the container and bottles causes the jack to retract and to operate a feeler 18 causing a pump 19 to extend a jack 20 and push the filled container off its platform 6 by means of an empty container 22. A stop 27 engages a switch 25 and causes a pump 23 to retract the jack 20. The magazine is of a wear resistant resilient synthetic plastic.
Patent GB-996260-A (GB)
Title: Waterstop connector
Inventor: FISCHER WALLACE CHARLES
IPC: E04B1/68
Filed: 1961-05-25
Abstract: 996,260. Waterstops, e.g. for concrete structures. SERVICISED PRODUCTS CORPORATION. Aug. 1, 1962 [May 25, 1961], No. 18885/61. Heading E1V. A connector for joining the end portion of a waterstop 2 of a first flexible material to the end portion of a waterstop 3 of a second and different flexible material comprises a strip 1 of said second material having one end portion bonded into an end portion of an embracing member 5 formed of the first material or of a material that can be bonded easily or with good bond strength to the first material, the other end portion of the member 5 being shaped to receive the end portion of the waterstop 2. The member 5 may be in natural or synthetic rubber or a mixture thereof and the strip 1 in synthetic plastic material such as polyvinyl chloride, the adhesive therebetween being e.g. based upon reclaimed rubber or a mixture of synthetic and natural rubbers. The member 5 may be one form of rubber and the waterstop 2 in another form. The waterstop 3 is bonded to the strip 1, e.g. by welding. Specification 776,713 is referred to.
Patent GB-1388765-A (GB)
Title: Machines for propelling rod or the like
IPC: H02G1/08
Filed: 1972-04-24
Abstract: 1388765 Inserting cables in ducts POST OFFICE 24 April 1972 18936/72 Heading H2C A machine for propelling flexible rods through duets preparatory to drawing cables therethrough comprises a carriage 1 upon which are mounted rod clamps 5 and 6 which are applied and relaxed, e.g. by a clamping cylinder C2 containing a piston, and a fluid operated drive, e.g. a drive cylinder C1 containing a piston, that is arranged to reciprocate the carriage; a mechanism, such as a system of valves, the operation of which is described, co-ordinates the clamp piston and the drive piston such that the clamps are applied during movement of the carriage in one direction and relaxed during movement of the carriage in the other direction; a manually operated control enables the drive direction of the machine to be reversed; means 11-18 anchor the machine to a duct. The frame of the machine has extensions 10 and 19 at its ends to facilitate handling and location of the machine in use. The extensions may be locked in a number of positions by pins 12 and 20. Pin 11 is pivoted at the end of extension 10 and engages the cylinder 15 which carries a adjustable plug for insertion into the end of the duet through which the rod is to be drawn. The plug is expanded to grip the inside of the duct by tightening two wing nuts 16. When the machine is operating the rod passes through the plug assisted by the roller 14, through the guide 7, between the clamps 5 and 6 and through the guides 8. Exhaust valves in the valve system are provided with exhaust silencers 21.
Patent GB-1393965-A (GB)
Title: Vaccine and method for inducing infertility in a male animal
IPC: A61K38/44
Filed: 1972-04-24
Abstract: 1393965 Antifertility vaccine and method ORTHO PHARMACEUTICAL CORP 24 April 1972 [5 May 1971] 18952/72 Heading A5B Infertility is induced in a male animal by injection into the testes of a vaccine comprising the purified X isozyme of lactate dehydrogenase (LDH-X) which enzyme is essential to and specific for the reproductive process of the testes. Thereby, antibodies specific to the enzyme are produced by the animal which are also specific to the testes and which suppress the reproductive process thereof. The vaccine may additionally comprise an adjuvant base, e.g. Freund's adjuvant.