baber/WOPTO huggingface dataset:
Patent GB-991451-A (GB)
Title: Polycyclic diepoxy compounds
Inventor: DUKE ANGUS JOHN
IPC: C08G59/24
Filed: 1961-05-03
Abstract: Novel stereoisomeric di-epoxides of the planar general formula as distinct from their stereoisomers described in Specifications 928,449, 936,346 and U.S.A. Specification 2,543,419, <FORM:0991451/C2/1> wherein X is oxygen or -O-R-O-, R being a C1 to C12 alkylene group optionally carrying secondary hydroxyl groups or an etherified polyalkylene glycol (R1O)xR1, in which R1 is a C2 to C4 alkylidene and x = 1 to 8, said stereoisomeric forms having both no strong or fairly strong adsorption peak at 780\sB5 cm.-1 and undergoing more rapid ring opening and additive reactions with mineral or carboxylic acids than the other stereoisomeric forms, one made by reacting the corresponding unsaturated compound with hypohalous acid, an N-halo amide or imide, or an alkyl hypohalite and treating the product with alkali. The most preferred epoxidation process employs tertiary butyl hypochlorite in the presence of formic or acetic acids.  The examples describe the preparation of compounds of the above formula wherein X is -O1-, -OCH2O-, -OCH2CH2O- and -OCH2CHOHCH2O-. The diepoxides optionally admixed with other oxirane compounds, together with suitable amine or carboxylic anhydrides, accelerators may be made into hardenable compositions. Specification 977,712 and 991,453 also are referred to.ALSO:Novel stereoisomeric diepoxides of the following planar general formula, having both no strong or fairly strong adsorption peak at 780\sB5 cm.-1 and undergoing more rapid ring opening and additive reactions with mineral and carboxylic acids than the other stereoisomeric forms, e.g. as disclosed in Specifications 928,449, 936,346 and U.S.A. Specification 2,543,419, <FORM:0991451/C3/1> wherein X is oxygen or -ORO-, R being C1 to C12 alkylene optionally carrying secondary hydroxyl groups, or an etherified polyalkylene glycol.  (R1O)xR1, R1 being C2 to C4 alkylidene and x=1 to 8, together with hardening agents especially di- or poly-carboxylic anhydrides, e.g. phthalic form hardenable compositions.  Up to not more than 20% of the other stereoisomer may be included.  Lists of the usual hardeners suitable include polyhydric phenols, and phenol formaldehyde resins, aluminium complexes with acetoacetic esters, Friedel-Crafts catalysts, amines, urea-formaldehyde resins, the most preferred being carboxylic anhydrides, optionally with amine or polyhydroxy accelerators.  The compositions may also contain inorganic and organic fillers of which mica, asphalt, kaolin are a selection from the list.  In the examples the compounds of the present invention wherein X is -O-, -OCH2O, OCH2CH2O-, -O-CH2-CHOHCH2O- are compared with the other stereoisomers as regards curing with phthalic anhydride and benzyldimethylamine and some physical properties of the products are evaluated. Specifications 977,712 and 991,453 also are referred to.
Patent GB-452175-A (GB)
Title: Improvements in and relating to the production of typographical slugs
IPC: B41B11/52
Filed: 1935-06-04
Abstract: 452,175. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd.., 9, Kingsway, London.-(Assignees of Mergenthaler Setzmaschinen-Fabrik Ges.; 25, Chausseestrasse, Berlin) June 4, 1935, No. 16118. Convention date, June 5, 1934. [Class 100 (iii)] Assembling matrices.-Relates to the production of long slugs, which are formed by successively casting a number of sectional slugs of normal length and assembling the sections together end to end. To enable this to be effected in machines in which a longitudinally movable matrix-line holder containing all the sections cannot be accommodated, the complete line of matrices is composed in an assembling- frame, and the sections of the line are transferred therefrom in sequence to a hand composing-stick by which they are supported in casting relation to the mould. The assembling- frame a, Fig. 1, is similar in form to known hand composing-sticks, and has a scale c graduated in ems. The first section of the line to be cast is transferred to a hand-stick e, Fig. 2, and, if not of the exact length of the mould slot, must be slightly longer, so that the slug is cast with an overhanging portion o, Fig. 2a. The second section is cast with a blank matrix at the leading end of a thickness equal to the overhang, if any, of the first, section, so that the slug will be formed with a blank portion, to accommodate the overhang. The succeeding sections are cast in the same way.
Patent GB-1334216-A (GB)
Title: Acoustic transducer for use under water
IPC: H04R17/10
Filed: 1972-04-07
Abstract: 1334216 Underwater transducers KAWASAKI JUKOGYO KK and FURUNO ELECTRIC CO Ltd 7 April 1972 [14 April 1971] 16156/72 Heading H4J An electro-acoustic transducer for use under water includes a piezoelectric ceramic transducer element 1 having an inner surface which, when the transducer is in use as a sound radiator, radiates unwanted acoustic energy. A chamber 10, defined in part by the inner surface of the element 1, communicates with a resonance cavity 20 through a plurality of passages 8 in a pipe 4 leading from the chamber 10. The transducer element 1 is preferably cylindrical and, together with two discs 2, 3, defines the chamber 10. Disc 2 has a central opening 5. The resonance chamber 20 is cylindrical. In use, the chamber 10 acts as a static water pressure chamber, water pressure being applied substantially equally to the outside and inside of the transducer element 1. The transducer has a well-defined resonance frequency, related to the resonance frequency of the chamber 20, at which it is extremely sensitive. In use the transducer is put in a flexible container filled with oil and the external water pressure is applied to the inner wall of the chamber through the oil.
Patent GB-535370-A (GB)
Title: Mechanical cocking device for automatic fire arms
IPC: F41A7/02
Filed: 1939-06-01
Abstract: 535,370. Automatic guns. VERWALTUNGSGES DER WERKZEUG MASCHINENFABRIK OERLIKON. June 1,.1939, No. 16179. Convention date, April 22. [Classes 92 (i) and 92 (ii)] A cable or link gear 8 extending between a part of the gun mounting and the cocking handle 2a is operated to re-cock the breech mechanism when the gun is manipulated as by elevating or training or by folding the gunner's seat. Fig. 1 shows a cable, normally housed on a spring drum within the gun pedestal, which is withdrawn and passed over a pulley 3a and connected to the cocking handle. The gun can then be ,manually cocked by depressing the gun about its trunnions 4a to the dotted line position shown. In a modification (not shown), the required movement is obtained by raising the vertical pivot 4 by means of a hand-gear 6. Fig. 4 shows a cam 16 and cable gears 17 for moving slides 18 furnished with arms 18a for cocking four guns when the mounting is trained. When in use, the cam is fixed by a pin 20 and the cables are strained by the cam to cock the guns. In a modification (not shown), the elevating hand wheel drives a drum for the cable through the medium of a disconnectable clutch.
Patent GB-1138960-A (GB)
Title: Water based air drying paints
IPC: C08F2/22
Filed: 1966-04-13
Abstract: 1,138,960. Emulsion copolymer paints. DeSOTO Inc. 13 April, 1966 [28 April, 1965], No. 16181/66. Heading C3P. Water-based, air-drying paints comprise dispersed particles of an emulsion copolymer comprising (1) units derived from a monoethylenically unsaturated monoepoxide material of which the oxirane ring has been reacted with an ammoniating agent or a primary or secondary amine or a mixture thereof, the units being present in an amount corresponding to from 0À2-3% by weight of the original monoepoxide material, based on the total weight of the copolymer, and (2) units derived from ethyl acrylate and methyl methacrylate in weight proportions of approximately 2 : 1 ; which particles coalesce at room temperature when the water phase of the emulsion is allowed to evaporate. The copolymer may also contain small amounts (up to 3-5% by weight) of units of an additional monomer such as acrylic acid, acrylamide, methylol-acrylamide, an amino-acrylate or hydroxyethyl acrylate. The oxirane groups can be reacted with the said agent or amine before, during or after the preparation of the copolymer from the corresponding monomers. The epoxide monomer may be glycidyl acrylate and/or methacrylate, allyl glycidyl ether, glycidyl vinyl ether or dipentene monoxide. Copolymerization is effected in aqueous emulsion, generally in the presence of a suitable catalyst, e.g. potassium or ammonium persulphate, hydrogen peroxide, benzoyl peroxide, cumene hydroperoxide or methyl ketone peroxide and desirably at a pH of 4À0-6À0. The products obtained can be pigmented or may contain dyes.
Patent GB-254713-A (GB)
Title: Improvements in, or relating to, the destructive hydrogenation of coal, tar, mineral oils, and the like
IPC: C10G1/06
Filed: 1926-06-28
Abstract: 254,713. I. G. Farbenindustrie Akt.- Ges. July 2, 1925, [Convention date]. Hydrogenation, destructive.-In the production of liquid hydrocarbons by treating carbonaceous bodies such as coal, tar, mineral oils, and lignite with hydrogen, the gas used is obtained by the partial decomposition, by oxygen or gases richer in oxygen than air, of gases or vapours containing hydrocarbons so as to. produce hydrogen and carbon monoxide, and simultaneously or subsequently converting, partially or completely, the carbon monoxide into carbon dioxide bv means cf water vapour, with production of more hydrogen. Carbon dioxide, water vapour, or both, with or without catalysts such as nickel precipitated on magnesia, iron alloys, or molten fron or iron alloys mav be present. The hydrocarbon vapours so treated are preferably the gases obtained in the destructive hydrogenation of carbonaceous materials, may be after separation of ethane, propane or other valuable compounds e.g. by cooling or by porous adsorbents; such separated propane &c. may be chlorinated, oxidized to formaldehyde and the like, or converted at high temperatures. into olefines.
Patent GB-794886-A (GB)
Title: Electric arc welding
IPC: B23K9/173
Filed: 1956-05-25
Abstract: 794,886. Welding by fusion. AIR REDUCTION CO., Inc. May 25, 1956 [May 27, 1955], No. 16259/56. Class 83 (4). Shielding gas for use in gas shielded arc welding is obtained by expanding a jet of liquefied gas to the gaseous state in the vicinity of the arc. The gas is carbon dioxide and may be partially in the form of snow after expansion. The expanding carbon dioxide cools the welding torch. A welding torch, Fig. 2, through which is fed a consumable electrode E, has a copper contact tube 30. Liquid carbon dioxide is fed from a manifold 33 through tubes 34 soldered in recesses in the contact tube 30 to orifices of say 0.01 inch diameter in a plate 38. In a modification, the liquid is fed by a single tube to an orificed manifold at the lower end of the torch, and a gas nozzle is provided around the electrode E. The contact tube may have a projecting enlarged end 61, Fig. 9, to increase cooling of the torch. In a modification, Fig. 7, the liquid supply tubes 51 extend down the exterior of the torch and pass through apertures in a nozzle 52 to direct gas against the nozzle and tangentially of the electrode. In a further modification, Figs. 11, 12, the contact tube 75 is formed with passages 76 through which is passed an inert gas such as argon or helium to form an inner shielding layer whilst liquid carbon dioxide in tubes 70 is expanded through orifices 72 to supply an outer shielding layer. The electrode E may be consumable or non-consumable.
Patent GB-293790-A (GB)
Title: Relay for regulating apparatus
IPC: G05D16/18
Filed: 1928-06-05
Abstract: 293,790. Akt.-Ges. der Maschinenfabriken, Escher, Wyss, et Cie. July 12, 1927, [Convention date]. Apparatus.-A relay for regulating apparatus comprises a movable deflecting device 6, Fig. 1, adapted to dip to a greater or less extent into a liquid jet 20 passing from a nozzle 4 to a nozzle 5, and thus vary the pressure acting on a regulating piston 10 or a pilot valve controlling the piston. The device 6 may consist of a knifeedged plate, a prism, or, as shown in Fig. 5, of a disc adapted to co-operate with two jets.
Patent GB-545089-A (GB)
Title: Improvements in gas filters
IPC: B01D46/24
Filed: 1940-11-08
Abstract: 545,089. Filtering gases. CHEMA MANUFACTURING CO., Ltd., and SIGMUND, M. Nov. 8, 1940, No. 16275. [Class 8 (ii)] Gas to be filtered enters an axial duct 3 closed at the end. and passes radially through a body of filtering material,e.g. activated carbon enclosed between perforated annular walls one or both of which is tapered so that the radial thickness traversed increases from the inlet end. The material is packed by a spring-pressed circumferentially ribbed plate 18, centrally dished to fit over the plate 11 closing the inlet duct, and spacing means 17 are provided fitting over the flange 21 of the plate 18.
Patent GB-1060385-A (GB)
Title: Improvements in the sampling of container contents
IPC: G01N30/24
Filed: 1964-04-20
Abstract: 1,060,385. Gas sampling apparatus. STROH BREWERY CO. April 20, 1964 [April 19, 1963], No. 16383/64. Heading G1B. A method of sampling gas present in the headspace of a closed container 18 e.g. a beer can, comprises filling a sampling chamber 32 with purging gas, the purging gas being subsequently expelled through a sampling conduit whose open end 20 is in the vicinity of the container 18 to envelope the space between the end 20 and the container with the purging gas, the open end 20 then being placed in communication with the headspace by causing it to pierce the top of the container, so that a sample of the headspace gas is passed to the sampling chamber 32, the sample being subsequently expelled therefrom to a gas analyzer e.g. a gas chromatograph or gas absorption burette. A container 18 is placed on a platform 16, the platform being reciprocable by a pneumatic cylinder 12 controlled by a solenoid operated valve 66. As the container 18 is forced upwardly the end 20 of the sampling conduit pierces the container to obtain the gas sample. A gasket 22 surrounds the end 20 to prevent contamination of the sample as it is taken. The sampling conduit contains a junction box 28 which connects with a supply of purging gas e.g. helium and with the gas analyzer. The sampling chamber 32 contains a piston 36 which is raised by the effect of the purging gas or by the gas sample released as the container is pierced. A pneumatic cylinder 44 controlled by a solenoid operated valve 46 is provided to lower the piston 36 to expel gases in the chamber 32. The operation of the apparatus is controlled by microswitches which in turn control the operation of the various valves and this is described in the Specification. The operation is initiated by operation of a switch 70 by an arm 72 which is moved as a container 18 is placed on the platform 16. Purging gas is supplied to the chamber 32 and is expelled through the end 20 of the sampling conduit, the platform 16 is raised, a sample of gas enters the chamber 32 and is subsequently passed to the gas analyzer, which in the case of a gas chromatograph uses only a fraction of the collected sample. The apparatus is described with reference to the determination of oxygen in the headspace gas of beer cans or bottles.
Patent GB-709543-A (GB)
Title: Improvements in parking and shopping traffic board game
IPC: G03F7/20
Filed: 1952-07-01
Abstract: 709,543. Board games. TRAFFIC GAME, Inc. July 1, 1952 [July 5. 1951], No. 16557/52. Class 132(2) Apparatus for playing a board game representing a shopping expedition comprises a board marked as shown, two dice, four packs of cards marked, respectively, with shops &c. to be visited, penalty cards for pedestrians, penalty cards for motorists and calls to be made on the way home and, for each player, a set of pieces distinguished by colour and comprising a motorist marker, a pedestrian marker and a "home" marker. In play, the cards marked with shops to be visited are dealt out and the players cast the dice and, in order of throw, inspect their shopping cards and place their "home" markers on "home" stations 20 around the peripheral tracks of the board. They then move their motorist markers in dependence on the throw of one die only over the main tracks to a parking space 14 drawing motorist penalty cards on certain spaces. They then draw and retain one card each of the pack denoting calls to be made on the way home. They then move their pedestrian markers in accordance with the throw of two dice and the pedestrian penalty cards about the board until they have visited all the shops defined by their shopping cards and return to their parking spaces 14<SP>1</SP>. They then proceed using one die and motorist markers: to their home stations 20 via the calls to be made on the way home as defined by the card drawn by each on first arriving at the spaces 14<SP>1</SP>. A "jail" space 23 is marked on the board. Specification 525,521 is referred to.
Patent GB-185863-A (GB)
Title: Improvements in hand looms or frames for use with raffia and the like
IPC: D03D29/00
Filed: 1921-06-16
Abstract: 185,863. Collins, L. F. A. June 16, 1921. Kindergarten plaiting and weaving appliances.- A hand loom or frame, for use in weaving or making lamp shades, flower-pot covers, &c. from raffia &c., comprises a hollow cylinder or cone a of cardboard &c. with notched opposite edges b, c. The warp is looped over the notched edges, and the weft worked under and over around the cylinder or is looped or knotted around alternate strands; or patterns may be produced. Two or more pieces of cardboard &c. with interposed wedge-shaped pieces may be used to form the cone.
Patent GB-507802-A (GB)
Title: Automatic focussing device for photographic projection printing or copying apparatus
IPC: G03B27/36
Filed: 1938-06-03
Abstract: 507,802. Photographic projection - printing apparatus. WENCZLER, L., and HEIDENHAIN, J. June 3, 1938, No. 16660. Convention date, June 8, 1937. [Class 98 (i)] Automatic focusing means for photographic projection printing or projection copying apparatus of the kind in which the light rays are deflected so that the object, lens and image are not in a straight line, comprises a linkage including a rigid body c which is supported so as to be rotatable about a point d which is stationary in relation to the lens b, the body e being pivotally connected by means of connecting-rods i, f with the copy holder a and dark slide holder c. The body e may comprise links e<1>, e<2>, m, as shown, or it may be formed as a triangular plate which may be provided with apertures or as a triangular grid. Counterweights may be used.
Patent GB-220934-A (GB)
IPC: D01F2/06
Filed: 1924-07-11
Abstract: Fine viscose silk is prepared by spinning a viscose having a cellulose content and an alkali content lower than the normal, but having a normal viscosity.  Such viscose solutions are obtained when employing an alkali cellulose which has been subjected to a diminished maturing period or to a lower maturing temperature or to both.  The speed of winding and the rate of extrusion are those ordinarily employed.
Patent GB-985715-A (GB)
Title: Improvements in and relating to centrifuges
IPC: F25B21/04
Filed: 1963-04-29
Abstract: 985,715. Centrifugal separators. M. CHRIST, [trading as MARTIN CHRIST FABRIK ELEKTRO-MEDIZINISCHER APPARATE]. April 29, 1963 [May 12, 1962], No. 16771/63. Heading B2P. [Also in Division G3] In a centrifuge comprising a housing 1 defining a chamber containing a rotor 16, 17 and adapted to be evacuated during the rotor operation, the temperature of the rotor is sensed by means of a temperature-sensitive element 21 connected to an electrical circuit on the rotor so that, upon a variation occurring in the rotor temperature, the element 21 causes a variation in the flow of electrical current in the electrical circuit to provide an output signal to which is responsive an electrical control circuit which controls the flow of electric current through Peltier elements 26 arranged around the rotor so as to maintain the temperature of the latter sensibly constant. The element 21 is in the form of a thermistor located in a hollow shaft 15 at the end of a driving shaft 13 and on which are secured the rotor parts 16, 17 of different shape and provided with tumblers 19, 20 respectively fixed and pivotable with respect to the rotor axis during operation. The thermistor 21 is electrically connected to a coil 22 fixed to the shaft 13 and inductively coupled to a stationary coil 23 having terminals 24. The signal from the coil 23 is converted to a unidirectional voltage and compared with a stabilized potential in a control bridge, Fig. 2, whose output is connected via a reversing push-button switch, an amplifier and electrical leads 30 to the Peltier elements 26 so as to heat or cool the chamber. The Peltier elements are circumferentially distributed around a metal mantle 25 enclosing the rotors 16, 17 and are associated with cooling liquid jackets 27. The chamber is evacuated by means of a vacuum pump connected at 2 and is closed by a cover 3 which, during opening or closing by means of a chain 8, sprockets 9, 10 and a servomotor 11, slides on rails 6 by means of rollers 5. To open the cover the servomotor is energized through a delay circuit by depressing the push-button of the switch. This interrupts the connection through the switch from the control bridge to the amplifier which is simultaneously put into connection with a dew point detector which, should the dew point of the ambient air be above the temperature of the centrifuge chamber, delivers an output signal to the amplifier. The latter responds to the signal by passing current through the Peltier elements in such a direction that they cause the temperature inside the chamber to be raised above the dew point of the ambient air. The delay period of the delay circuit is sufficient to allow this action to take place before the cover is opened.
Patent GB-147548-A (GB)
Title: Improvements in or relating to ordnance
IPC: F41A21/28
Filed: 1920-06-21
Abstract: 147,548. Master, S. D. July 11, 1919, [Convention date]. Ordnance smoke and gases, deflecting; flash of discharge, obscuring; sound, modifying.-Consists in providing lateral gas vents in the barrel, and a gas-actuated rocking valve at the muzzle adapted to be closed after the passage of the projectile, with or without means for obscuring the flare of the laterally escaping gases, and for maintaining the lateral vents closed until the projectile has passed. In the form shown, a rotary valve 6, having a cylindrical or flared part 9 slightly wider than the gun bore, is rotated to close the bore after the passage of the projectile 10 by gases passing through a port 17 into a cylinder 16 and displacing a piston 15 coupled to the valve 6 by rack-and-pinion gearing. The gases in the barrel are then discharged through vents 19 or received in a pit or other receptacle, the flare being obscured by a plate 18. The piston 15 is cushioned during its forward movement by an arrangement of ports 22, 23, the port 23 being closed by a ball valve 26, and is returned by tensile springs 21. A modification is described in which the ports 19 are interrupted bv a slidable ported valve controlled by the piston 15. The Specification as open to inspection under Sect. 91 (3) (a) comprises also modifications, in which lateral ports interrupted by a gas-operated slidable or rotary ported valve are employed alone, without the rotary valve 9. This subject-matter dces not appear in the Specification as accepted.