baber/WOPTO huggingface dataset:
Patent GB-889800-A (GB)
Title: New silicon-containing reaction products of epoxidized oils
Inventor: FYSH DERICK
IPC: C07D303/42
Filed: 1958-05-08
Abstract: Silicon-containing carboxylic acid esters are obtained by reacting a silicon tetrahalide with an epoxide of an unsaturated fatty acid ester.  The unsaturated ester should have an iodine value of at least 80 and should not contain a substantial proportion of conjugated double bonds.  Epoxidized ground-nut, linseed, soya bean, sunflower, poppy seed, cotton seed and fish oils are specified.  Esters other than the glycerol esters of the fatty acids of these oils may be used as well as those in which some of the epoxy groups have been reacted, e.g. esterified. Reaction may be effected in a solution in, for example, toluene or chloroform.  The products are used as intermediates:-where epoxy groups remain they may be reacted with drying oil acids to give drying oils; and they may be heated with unsaturated polyesters and the products cross-linked by copolymerization with, for example, styrene, diallyl phthalate or methyl methacrylate.  These products adhere to glass and may be used to bond glass fibres. The unsaturated polyesters are produced from unsaturated dicarboxylic acids, e.g. maleic and fumaric acids, with, if desired, phthalic acid, and a glycol.  Final curing is obtained by the use of cobalt naphthenate and a peroxide, e.g. methyl ethyl ketone peroxide.  Examples are given in all of which silicon tetrachloride is the starting material.
Patent GB-180685-A (GB)
Title: Improvements in electric batteries
IPC: H01M6/06
Filed: 1922-05-25
Abstract: 180,685. Weissmann, G. May 25, 1921, [Convention date]. Electrodes; cells.-The zinc electrode of a LeclanchÚ cell is in the form of a strip a<1> enclosed in a porous envelope b<1> and bent to form a number of compartments in each of which are a number of carbon rods c surrounded by powdered depolarizer as shown in Fig. 2. The whole, is enclosed in an envelope f and placed in a container g which is closed by a wax seal. Electrolyte may be poured on to the depolarizer or it may be introduced into the cell through a tube which may be embedded in the depolarizer and provided with holes at different levels. The Specification as open to inspection under Sect. 91 (3) (a) describes a cell in which a zinc container a as shown in Fig. 2 (Cancelled) encloses a carbon rod c surrounded bv a mixture d of manganese dioxide and graphite contained in a bag b of porous material such as filter paper. A solution of ammonium chloride may be introduced into the completed cell or it may be poured into the cell when only a portion of the depolarizer has been placed in the bag b, the remainder of the depolarizer being then added. The cell is closed by wax e and is then placed in an insulating envelope or in a fluid-tight vat. In the form of cell shown in Fig. 2 the electrolyte may be mixed with the depolarizer to form a paste which is poured into the compartments formed by the zinc electrode. This subject-matter does not appear in the Specification as accepted.
Patent GB-462041-A (GB)
Title: Improvements in bogie arrangements for motor and other rail vehicles
IPC: B61F5/24
Filed: 1935-05-21
Abstract: 462,041. Railway - vehicle bogies. TATRA-WERKE, AUTOMOBIL-UND WAGGONBAU AKT.- GES. May 21, 1935, No. 14843. Void. Convention date, May 30, 1934. [Class 103 (vi)] In a motor or other rail vehicle of the kind in which the bogie frames are provided with means for restraining swivelling movements of the bogies about their pivots, each frame 2, 3 is extended towards the centre of the vehicle to form arms 4, 5 which engage dampers 6, 7 on the underside of the body 1, such dampers being positioned at a distance from the near axle of the bogie not less than the distance apart of the pairs of bogie axles.
Patent GB-1497226-A (GB)
Title: Control fluid valve arrangement for use in a pressure medium operated brake system
IPC: B60T15/36
Filed: 1975-04-10
Abstract: 1497226 Railway brake control valve arrangemerits KNORR-BREMSE GmbH 10 April 1975 [14 May 1974] 14860/75 Heading F2F A control valve arrangement for use in an air brake system for a rail vehicle comprises both maximum and minimum pressure limiters, and a triple pressure control valve for direct and indirect control of the brake cylinder pressure. The braking system of Fig. 1 including an embodiment of the arrangement according to the invention comprises supply reservoir 41 supplying air to chamber 19 of the maximum pressure limiter from where it may pass to bore 23, according to the position of the valve 11, 12 of the limiter, and on through nozzle 27 to the inlet valve 29 of the triple pressure control valve and to a valve seat 39 of the minimum pressure limiter. On reaching bore 23 air may pass through bores 25, 24 and 18 respectively to act on diaphragm 5 such that valve 11, 12 is closed when a certain maximum desired brake pressure is attained. The maximum pressure limiter incorporates a flow guiding member 21 incorporated in the bore 23 being of widening cross-section then narrowing towards its extremity 22. A second embodiment of the flow limiter may be generally frusto-conical.
Patent GB-129865-A (GB)
Title: Improvement relating to Drawplates of Baking Ovens.
Inventor: FARWELL EDWARD
IPC: A21B1/48
Filed: 1918-12-24
Abstract: 129,865. Farwell, E. Dec. 24, 1918. Bakers' ovens.-A flexible drawplate, working in guide-grooves fixed to the sides of the oven and formed on a casing secured to the oven front, is operated by an endless chain so that, as it is withdrawn, the front part is turned down and returned into the oven. The drawplate is formed of sections a, jointed together, and provided with side extensions carrying rollers a' working in grooves b, b<1> secured to the side walls of the oven. These upper and lower grooves are connected at the front of the oven by semi-circular grooves d<6> formed on a chamber d, in which are enclosed the front sprocket wheels c<2> for endless chains c' connected to the downplate at the middle of its length. A handle is secured to the shaft c<4> and, by operating this, the drawplate can be withdrawn from the oven, and its front part returned along the grooves b<1>. Instead of employing the rollers a<2> the ends of the downplate sections may take directly into the guidegrooves.
Patent GB-653089-A (GB)
Title: Improvements in or relating to lighting units
IPC: F21V21/116
Filed: 1948-06-02
Abstract: 653,089. Fluorescent lighting fittings. HILLIER, M. M. MACLAIRE-. June 2, 1948, No. 14929. [Classes 75(iii) and 75(iv)] A lighting fitting for surgical, dental and like purposes comprises a box-like casing 10 housing a removable panel 41 to which is secured auxiliary gear (a choke 43, a condenser 42 and starting units 44, 45) for one or more fluorescent lamps 16, 17 which are mounted in or on one face (front face) of the casing 10, an additional light source 18 being mounted in or on an adjacent face of the casing. As shown the front and lower faces of the casing are formed with openings to receive concave reflectors 14, 15 respectively for the lamps 16, 17 and 18; the lamp 18 being an electric filament lamp. The detachable panel 41 is screwed to a plate 21 secured along its side edges to the top and bottom of the casing and extending the length of the opening in the front face. Mounted on the plate 21 and projecting into the reflectors 14, 15 respectively are lampholders 31, 32, 33, 34 and 35. 36. The electrical connection between the auxiliary gear on the removable panel 41 and the lamps is effected by means of plugs 46, 47, 48, 49 which plug into sockets on the fixed plate 21, a plug 50 connecting the auxiliary gear to the mains through a switch 51. The filament lamp 18 is connected directly to the mains via a switch 53. Where the additional light source 18 is a fluorescent lamp, independent axuiliary gear and switching is provided. A translucent roller blind 54 may be housed within the casing 10 and arranged to be pulled through a slot 56 in the front face to cover the lamps 16,17, varying the colour or quality of the light therefrom and providing a viewing screen for X-ray films. In an alternative arrangement a flat glass screen may be arranged to slide in grooves formed on each side of the front face opening. The fitting is pivotally clamped at each end between the arms of a tubular bracket member 63 the ends of which are fitted with banjo fittings 64. The centre of the bracket member 63 is provided with an extension 68 having a screw-threaded portion of fine pitch which screws into the bottom portion 71 of a two-part clamp 71. 74, the upper portion 74 being a U-shaped member having a thumb-screw 75 whereby the fitting is adjustably clamped to a rodlike support 76. The support 76 may form part of an existing dental unit or be in the form of a wall bracket, floor stand or ceiling suspension. A horizontal slot 72. is provided in the clamp part 71 to receive a screw 73 which is screwed into.the extension 68 and serves as a stop to limit the rotation of the fitting about a vertical axis.
Patent GB-144301-A (GB)
Title: Improvements in and connected with engine arrangements on flying machines
IPC: B64D27/04
Filed: 1920-06-03
Abstract: 144,301. Daimler-Motoren-Ges. July 20, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Propelling.-In a flying-machine having pairs of engines 3, 4 and 5, 6 arranged one behind the other, the r e a r engines are turned with respect to the front engines through 180 degrees about a vertical axis. As shown, the front engines drive tractor screws, and the rear engines drive pusher screws. The engines may be arranged beneath the planes and within the stays connecting the planes to the fuselage.
Patent GB-529079-A (GB)
Title: Improvements in or relating to the supercharging of compressors by means of a rotary blower
IPC: F04B41/06
Filed: 1939-05-20
Abstract: 529,079. Regulating compressors. SOC. RATEAU. May 20, 1939, No. 15110. Convention date, May 27, 1938. [Class 8 (i)] [Also in Group XXIX] A single rotary blower 9 is used to supercharge a number of compressors 1 ... 4 supplying a reservoir 13. Fall in the reservoir pressure is transmitted to a contact device 15 which then allows contact to be made, closing a circuit to actuate a switch 25 which closes the current supply to the motor 26 driving the blower. At the same time, a solenoid 18 is energized to raise a piston valve 20 and so open a pipe 22 to atmosphere and allow a valve 24 in the blower byepass to close. If the pressure rises unduly the driving circuit is opened, and also the byepass. On further rise of pressure, the air supplied to distributers 27 acts on pistons 29 to close valves 30 in the compressor intakes.
Patent GB-168428-A (GB)
Title: Improvements in and relating to grease cups and the like
IPC: F16N11/02
Filed: 1920-06-07
Abstract: 168,428. Spencer, P. June 7, 1920. Containers, collapsable. - A collapsable container fitted in a grease-cup or analogous device and adapted to be collapsed by pressure to express its contents of viscous material is so formed that when the pressure is relieved it will recover its shape, whereby, after recharging, it may be used repeatedly. As applied to a grease-cup 1 with a screw cap 2, the container 3 is in the form of a volute spring wound from the top in a counter-clockwise direction. The lower end is formed with tongues 5 which engage serrations in the base of the cup to hold the container against rotation. The upper edge of the container is provided with a detent 8 engaging notches 9 in the cap 2 in order to resist unscrewing of the cap and to assist in the collapse of the container. In a modification, the container comprises two telescopic tubes pressed apart by a spring. In a further modification, the container is in the form of an open helical spring provided with detents at each end.
Patent GB-151021-A (GB)
Title: Improvements in and relating to wireless signalling systems
IPC: H04B7/12
Filed: 1916-10-27
Abstract: 151,021. British Thomson - Houston Co., (General Electric Co.). Oct. 27, 1916. Drawings to Specification. Wireless signalling.-In order to minimize the effects of static disturbances on the receiving-instruments, amplitude pulses of an inaudible frequency are produced either by the generation in the transmitting-aerial of oscillations of two frequencies (say 75,000 and 80,000) or by applying the second frequency to the receiving-system from a local source. The currents of inaudible frequency are accumulated in a resonant circuit at the receiving-station and are detected by heterodyning from a low-frequency generator, or otherwise. The arrangements described are identical with those described in Specification 134,585. Specification 16443/15 is referred to. Reference has been directed by the Comptroller to Specification 146,988.
Patent GB-1246703-A (GB)
Title: Apparatus for stabilising the voltage of a supply main
IPC: H02J3/18
Filed: 1969-03-24
Abstract: 1,246,703. Automatic voltage stabilization with varying inductive loads. LICENTIA PATENTVERWALTUNGS - G. m. b. H. March 24, 1969 [March 23, 1968(2)], No. 15412/69. Heading G3R. The voltage of an A. C. supply main which feeds a rapidly-varying inductive load is stabilized by maintaining the reactive current substantially constant, using inductors which are in series or in parallel with the load and which are controlled by electronic switches so that the inductance value can be altered with a rapidity of the order of one half to a cycle of the mains supply. The operation of an arrangement comprising a variable inductor in series with an inductive load having a variable resistance, Fig. 1 (not shown) is explained with the aid of a circle diagram Fig. 6 (not shown), from which are derived the various values of the inductor required to maintain the reactive current constant over a range of load resistances. In the extreme case of low load resistance the inductor acts as a current limiter. The variable inductor may comprise three series-connected inductors stepped in the ratio 1 : 2 : 4 and each in parallel with anti-parallel thyristors, Fig.3 (not shown). The latter should be fired at the peak value of the inductor voltage to prevent the occurrence of aperiodic components, Fig. 4 (not shown). If the variable inductor is in parallel with the load, Fig. 2 (not shown) its value is varied so that the reactive current is maintained at a value corresponding to the minimum value of the load resistance. Such an arrangement is shown in Fig. 7 wherein the load is an arc furnace R and a series connected inductor L, and the variable inductor comprises inductors L 12 , L 23 , L 31  controlled by anti-parallel valves. The load currents are sampled in each cycle or half cycle by a high speed electronic computer R 12 , R 23 , R 31 , each of which controls a respective valve-control circuit S 12 , S 23 , S 31  so that the inductors L 12 , L 23 , L 31  are switched to supplement the fluctuating load current with a delay of about one half to one cycle. The reactive current is thereby stabilized at a maximum value which may be compensated by capacitors C. The use of separate computers and control circuits enables the inductors to be switched to convert an asymmetrical loading situation (if such exists) to a symmetrical one, in accordance with the Steinmetz formula. Typical sampling instants and supplementing effects are described, Fig. 8 (not shown).
Patent GB-1299638-A (GB)
Title: Improvements in or relating to flat warp knitting machines, particularly stitch-bonding machines
Inventor: DORING WOLFGAN
IPC: D04B23/12
Filed: 1970-04-01
Abstract: 1299638 Knitting-machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 1 April 1970 15429/70 Heading D1C A warp machine has means for presenting weft to the needles comprising two hookbearing endless chains 1, 2 supplied with weft by laying means 3 moving to-and-fro between them and also to-and-fro transversely between them. The two movements ensure the wefts are perpendicular to the wales in the fabric. The weft laying means comprises two plates 4, 5 spaced by bars 6, driven by a chain 11 along fixed guides 8, 9 in a basic direction between the chains. The weft threads 13 are guided by a slide 7 movable along the bars transverse to the basic direction. The slide carries a sleeve through which a bar 14 is passed; the bar is oscillated by arms 15. Ropes 17 are connected at one end to the arms and at the other to a pivotable lever 18 oscillated by a driven cam 19. In a modification (Fig. 2 not shown) the rod 17 is moved in a rectilinear path along fixed guides (31, 32). In further modifications (Figs. 3, 4 not shown) the rod is swung about an axis perpendicular to the plane containing the chains. In further embodiments additional wefts are laid obliquely to the wales by laying means moving solely to-and-fro between the chains. The oblique wefts (36 Fig. 7 not shown) are laid by means (35) moved to-and-fro by a chain (37). The laying means carries a slide (12) movable transversely to the basic movement, relative thereto and by guide bars (42, 43) at the end of the traverses. A second slide (82 Fig. 12 not shown) may be mounted opposite the first slide on the laying means. In an alternative embodiment (Fig. 10 not shown) the two laying means (3, 35) are separately driven, the former being moved transversely at the end of its traverses by cam wedges (54, 55).
Patent GB-152718-A (GB)
Title: Improvements in hydrocarbon fuel burners
IPC: F23C99/00
Filed: 1919-06-19
Abstract: 152,718. Hastings, H. H. June 19, 1919. Pilot jets.-In a hydrocarbon burner for use in cooking-stoves, furnaces, heaters, and steamgenerating boilers, a small pilot flame may be retained at gas nozzles 11, which are provided to heat initially caps 11 over which the oil from delivery pipes 15a flows.
Patent GB-1043798-A (GB)
Title: Steering clutch and brake controls for tractors
IPC: B60T7/02
Filed: 1965-04-12
Abstract: 1,043,798. Brakes. CATERPILLAR TRACTOR CO. April 12, 1965 [April 28, 1964], No. 15583/65. Heading F2E. [Also in Division B7] In a tractor steered by selective declutching and braking of opposite driving wheels or endless-tracks, control pedals 18L, R are connected by linkages 21, 22, 23, 24 to servo boosters 12 which disengage the steering clutches during initial depression of the pedals, and lugs 33 on the pedals 18L, R engage levers 28L, R connected by links 30 to brake mechanisms 26L, R which include lost-motion sufficient to ensure clutch disengagement before brake application. A third pedal 35 carries an equalizing bar 38 engaging both levers 28L, R to enable simultaneous application of both brakes without disengaging the clutches. Each servo booster 12 comprises a plunger 15 which is depressed upon actuation of the associated pedal to close port 50 communicating with vents 51 and cause oil supplied through an inlet 48 to build up pressure behind a piston 46 engaging a roller 53 on a lever 52 connected to the clutch mechanism. Ports 56 extend beyond the bore 47 to relieve pressure on the piston when the clutch is disengaged.
Patent GB-677193-A (GB)
Title: Lubricant metering fitting
IPC: F16N27/00
Filed: 1950-06-22
Abstract: <PICT:0677193/IV (a)/1> In a lubricating system, a metering device A contains a socket 21 having a seat 31 upon which is received a spring - urged valve. The valve comprising a brass disc 25 to which is attached a valve-face 24 of synthetic polymerized material.  The preferred valve face 24 may be made from a disc or woven glass fabric coated with white silicone rubber; nylon fabric may also be used. The silicone rubber may be applied directly to and be cured on to the brass valve disc 25, or to the valve seat 31.  The valve face elements may be provided by polymerization of hydro - silicone compounds.  Titanium dioxide may be used as a filler.  Other low molecular weight siloxanes may be employed by themselves or in mixtures to make the valve face material.
Patent GB-869090-A (GB)
Title: Corticosteroids and preparation thereof
IPC: C07J75/00
Filed: 1958-05-15
Abstract: The invention comprises steroids of the formulae:  <FORM:0869090/IV (b)/1> or <FORM:0869090/IV (b)/2> and their D 1-dehydro derivatives, wherein R is keto or b -hydroxyl, X is hydrogen or halogen and Y is amino, monoalkylamino, dialkylamino, monophenylamino, monophenylalkylamino, N-alkyl-N-phenyl-amino, N-alkyl-N-phenylalkylamino, morpholino, 1-pyrrolyl, 1-pyrrolidinyl, N-alkyl-N-pyridyl-amino, piperidino or C-alkylated-piperidino, the alkyl groups containing at most 6 carbon atoms; and acid-addition salts thereof; and their preparation by contacting the corresponding 21-iodo, 21-bromo or 21-sulphonyl ester-corticosteroid with the appropriate amine. This process is preferably effected in a polar organic solvent at from about 20 DEG  to about 200 DEG C. for a time of about 15 minutes to 24 hours.  Examples are given and a list of salt-forming organic or inorganic acids is provided.  U.S.A. Specification 2,907,694 is referred to.ALSO:Pharmaceutical compositions comprise steroids of the formul  <FORM:0869090/VI/1> and their D 1-dehydroderivatives, wherein R is keto or b -hydroxyl, X is hydrogen or halogen, and Y is amino, monoalkylamino, dialkylamino, monophenylamino, monophenylalkylamino, N-alkyl-N-phenyl-amino, N-alkyl-N-phenylalkylamino, morpholino, 1-pyrrolyl, 1-pyrrolidinyl, N-alkyl-N-pyridyl-amino, piperidino or C-alkylated-piperidino, the alkyl groups containing at most 6 carbon atoms, or acid-addition salts thereof in admixture with a carrier.  They may take the form of aqueous suspensions, sterile aqueous solutions, tablets, elixirs, ointments or salves, and may contain saline, glucose and sweetening or flavouring agents.  A list of salt-forming organic and inorganic acids is provided. U.S.A. Specification 2,907,694 is referred to.
Patent GB-818252-A (GB)
Title: Preparation of tetrachloroalkylphenols
Inventor: LYNCH ERIC ROYLE
IPC: C07C37/62
Filed: 1957-05-17
Abstract: Tetrachloro - m - alkylphenols are prepared by chlorinating the corresponding 2 : 4 : 6-trichloro - m - alkylphenol at a temperature of 40 DEG  C. or above, preferably between 65 DEG  and 75 DEG  C., in the presence of a chlorination-catalyst, such as aluminium chloride, and an inert organic solvent such as symmetrical tetrachloroethane, 1 : 1 : 1 : 2 - tetrachloroethane, and tetrachloroethylene.  The process is particularly applicable to the preparation of tetrachloro - m - cresol.  Trichloro - m - cresol is readily prepared by the chlorination of m-cresol in the absence of a solvent or a catalyst; and the trichloro-compound is then chlorinated by the process of the invention.  The ethyl-, propyl- and butyl-compounds may be similarly prepared.  The process may be modified by over-chlorinating the trichloro-m-alkylphenol to obtain a product containing tetrachloro-m-alkylphenol and some 2 : 4 : 4 : 5 : 6-pentachloro - 3 - alkylcyclohexa - 2 : 5 - dienone; and then converting the latter into the required tetrachloro - m - alkylphenol by reduction with a sulphite, or by heating it, i.e. the pentachlorocyclohexadienone, with the corresponding trichloro-m-alkylphenol in the presence of aluminium chloride.
Patent GB-899967-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
Inventor: STREICHER KURT
IPC: A44B19/40
Filed: 1959-05-07
Abstract: 899,967. Sliding clasp fasteners. RUHRMANN, J. May 7, 1959, No. 15698/59. Class 44. A method of making a sliding clasp fastener, interlocking members 2 of which are made of plastics and are interconnected to form a string of interlocking members, comprises the steps of placing a covering strip 4 on the string of interlocking members and welding or gluing the covering strip to the string and or through interstices between adjacent interlocking members to the tape 1 or other support carrying the string. As shown, the interlocking members 2 substantially U-shape, one end of each member (except for the end members) being connected only to the succeeding and the other end only to the preceding member by bridge portions. The members 2 are attached to the tape 1 by stitches 11. The covering strip 4 includes a layer 7 of weldable plastics material. In modifications, the strip 4 may be impregnated with or made entirely of plastics material or may be welded or glued solely to the limbs 3 of the members 2.