baber/WOPTO huggingface dataset:
Patent GB-1379780-A (GB)
Title: Epoxide resin mixtures
IPC: C07D239/22
Filed: 1972-12-28
Abstract: 1379780 Epoxide resins based on cyclic ureides CIBA-GEIGY AG 28 Dec 1972 [30 Dec 1971] 59855/72 Heading C3B Novel mixtures of epoxide resin compounds of the formula  wherein Z denotes substituted or unsubstituted methylene or ethylene, n denotes a number from 0 to 12, and the proportion of compounds with n=0 in the epoxide resin mixture is below 50 mol per cent, are prepared by reacting one mol of a compound of the formula with 1À2 to 3À0 mols of an epihalohydrin in the presence of a catalyst such as a tertiary amine or a quaternary ammonium salt or base to form an intermediate product containing halohydrin groups which are subsequently converted to epoxide groups by treatment with agents capable of splitting off hydrogen halide. Specified starting materials are hydantoin, 5-methylhydantoin, 5-methyl-5-ethylhydantoin, 5-n-propylhydantoin, 5 - isopropylhydantoin, 1,3 - diaza - spiro(4,5) - decane - 2,4 - dione, 1,3 - diazaspiro(4,4) - nonane - 2,4 - dione, 5,5 - dimethylhydantoin, 5,6-dihydro-uracil, 5,5-dimethyl-5,6- dihydrouracil and 5,5-dimethyl-6-isopropyl-5,6- dihydrouracil. The above epoxide resins may be cured with conventional hardening agents, especially polycarboxylic acids or polycarboxylic acid anhydrides. Uses.-Casting, electrical and lacquer resins, compression moulding compositions.
Patent GB-1414840-A (GB)
Title: Light-activated lateral thyristor and ac switch
IPC: H01L29/747
Filed: 1973-12-28
Abstract: 1414840 Semi-conductor devices WESTINGHOUSE ELECTRIC CORP 28 Dec 1973 [11 Jan 1973] 59940/73 Heading H1K A light activated lateral thyristor comprises a first region 12 diffused into a semiconductor body 10 of uniform impurity concentration, a second region 15 diffused within the periphery of the first, and forming a PN junction therewith, a third region 17 spaced from the first region so as to form a fourth residual region 14, therebetween, of the body 10, the first and residual regions forming the base regions of the device and being capable of switching the device on upon receiving light energy from a source 28A. The structure enables base regions of the same width, and of approaching impurity concentrations, to be obtained, and to have a large surface area to receive the light. The body may be of silicon with boron and phosphorus or arsenic dopants, and may have contacts 19, 20 of aluminium or gold alloyed to the regions. The device may have an annular structure, as shown, the region perimeters being convoluted to increase junction lengths. In an A.C. switch embodiment using two interconnected thyristors, the second region of each thyristor is connected by a planar contact to the third region of the other thyristor.
Patent GB-1323119-A (GB)
Title: Arylimino-oxazolidines and their use as acaricides
IPC: A01N43/76
Filed: 1970-12-17
Abstract: 1323119 Arylimino-oxazolidines BAYER AG 17 Dec 1970 [17 Dec 1969] 60003/70 Heading C2C Acaricides of formula in which R is chlorine, bromine, fluorine, trifluoromethyl or a C 1-4 -alkyl, alkenyl or alkoxy group, R<SP>1</SP> is hydrogen, chlorine, bromine, fluorine, alkyl, alkoxy, alkenyl, trifluoromethyl or difluoromethyl, n is 0, 1 or 2, and R<SP>11</SP> is a C 3-7 -alkenyl radical, optionally substituted at the double bond by at least one chlorine or bromine atom, or a C 3-7 -alkynyl radical, and acid addition salts thereof, are prepared by (a) reaction of a substituted phenyl isocyanide with an R<SP>11</SP>-substituted-ethanolamine, (b) cyclization of a urea of formula or (c) reaction of a corresponding N-unsubstituted oxazolidine with a compound R<SP>11</SP>-A in which A is a reactive ester group.
Patent GB-614382-A (GB)
Abstract: 614,382. Cash registers. NATIONAL CASH REGISTER CO. July 11, 1946, No. 2288/48. Convention date, Feb. 10, 1942. Divided out of 614,347. Drawings to Specification. [Class 106 (i)] Zero eliminating mechanism in or for a cash register or similar accounting machine includes a type carrier, differential means settable under the control of a depressed key to position the type carrier, means, including a segmental gear, to connect the differential means to the type carrier, means adapted to move the segmental gear independently of the differential means when the former is in zero position, and means operated by the segmental gear, when it is moved away from zero position by the differential means, to disable the independent moving means. The mechanism is the same as that included in the machine described in Specification 614,347.
Patent GB-635321-A (GB)
Abstract: 635,321. Electric furnaces. STERENTAL, V. Dec. 24, 1947, No. 34217. Convention date, Dec. 12, 1942. [Class 39 (iii)] A closure for a charging opening 1 in one of the end walls of a rotary electric furnace comprises a wall of refractory material 2 having an opening for receiving an electrode or a resistance holder 6 and a further opening 3 for the relief of furnace vapours. The closure is mounted on a frame 10 axially displaceable from the charging opening. The electrode or resistance holder 6 is eccentrically mounted with respect to the furnace axis such that any portions of charge carried upwards by the rotation of the furnace, shall not fall upon the heating means. The furnace is suitable for melting metals under a protecting and purifying volatile salt bath.
Patent GB-762846-A (GB)
Abstract: 762,846. Pens for recording instruments. LANDIS & GYR AKT.-GES. Dec. 24, 1954 [Dec. 29, 1953], No. 37335/54. Class 146(3). In an ink marking unit for recording apparatus incorporating an ink writing and distribution system, the system is assembled as a unit in the recording apparatus and comprises an ink container 25 with one or more capillary pens 18 each connected to the container by a flexible tube 24, each tube extending vertically with respect to the horizontal body of the pen from which it hangs freely in parallel relationship to a pointer 13 of the apparatus. As shown, the pen 18 is mounted on a carrier 21 having a slot. which is a sliding fit upon a neck 22 of a pointer holder 12 carried by an arbor 11 of the recording apparatus; the arbor 11 is actuated by a measuring mechanism, e.g. an electrical or mechanical one. The pointer 13 co-operates with a scale 15 and carries a pen holder 17 supporting the pen 18 which is of glass. Ink is fed, by capillary action to the pen through the tube 24 of soft para rubber, from the container 25 held in a spring clip 30 fixed to a vertically adjustable carrier 32. The container is of transparent glass and has a rubber plug 27 provided with a capillary hole 29 through which air can enter. In a modification, the container supplies ink to several pens each supported and controlled by a pointer.
Patent GB-2032679-A (GB)
Title: Improvements in or relating to electrical button cells
IPC: H01M50/184
Filed: 1978-10-26
Abstract: An electrical button type cell comprises a casing 11 and a cap 15. The cap 15 has an annular channel 18 which is crimped to grip a non-conducting sealing ring 19, while leaving a narrow opening around the channel, before assembly in the casing. The cap 15 is then sealed into position in the casing with a further non-conducting sealing device 22. The casing contains cathode material 12, anode material 16 and an alkaline electrolyte. <IMAGE>
Patent GB-2010577-A (GB)
Title: Preparing specimens using an ion beam
IPC: H01J37/305
Filed: 1978-11-10
Abstract: Specimens are prepared for examination by transmission electron microscopy techniques by making them suitably thin by using an ion source which is cooled so that the specimen can be placed close to the cathode of the ion source and the concentration of the beam impinging on the specimen to thin it is increased whereby to improve the rate at which the specimen is thinned to a required thickness without deleteriously affecting its structure. The specimen may be held stationary or may be rotated and be so disposed that the ion beam impinges normally or at any convenient angle, e.g. 60 DEG , thereto. Initially, one side of the specimen may be irradiated by the ion beam for a short while, the specimen then being reversed and the other side irradiated to the required thickness, which may be determined by monitoring the ion current penetrating the specimen.
Patent GB-2012937-A (GB)
Title: Refrigerators
IPC: F25D23/06
Filed: 1978-12-22
Abstract: A refrigerator cooled by air circulation comprises an inner lining or shell 1 formed by two separate bodies 2, 4 adapted to be coupled together, the coupling line therebetween being covered by an adhesive band or tape 6. The refrigerator housing 17 is preferably of metal and includes only the sides and top of the refrigerator. The remainder being covered by a light sheet 18 e.g. paperboard and the space between the housing or sheet and lining is filled with a thermal insulation material 16 preferably foamed plastics. <IMAGE>
Patent GB-2011410-A (GB)
Title: Pyrido[1,2-a]Pyrimidine Derivatives, Their Preparation and Pharmaceutical Compositions Containing Them
IPC: A61P37/08
Filed: 1978-12-28
Abstract: Pyrido[1,2-a]pyrimidine derivatives of the general formula I   <IMAGE>  wherein R-R<3> are hydrogen or various organic groups, may be made by cyclising suitably substituted 2- aminopyridine starting materials. The compounds are of interest as chemical intermediates. Some also exhibit a variety of pharmacological activities.
Patent GB-2015727-A (GB)
Title: Method and apparatus for checking the position of out-of-round workpieces, in particular piston rings
IPC: G05D3/12
Filed: 1979-01-04
Abstract: Piston ring 4 with out-of-round inner and outer peripheral surfaces 5 and 6 is rotatable by a motor 1 through spindle 2 and clamping segments 3. Its periphery is illuminated by light source 8 through diffusing screen 7 and scanned by a photo-electric receiver 9 which transmits electrical signals representing radius r as a function of angle  phi  to computer 10. Measured curve 11 is compared with reference curve 12 to provide information which is used to rotate the ring and displace it radially for alignment with other rings for subsequent machining. Alternatively an inductive sensor may be used to measure the profile of a piston (not shown) and the profile is correlated electronically as above to provide a signal to control the machining of the piston. <IMAGE>
Patent GB-2039817-A (GB)
Title: Method of Manufacturing Plastics Closures for Containers
IPC: B29C45/44
Filed: 1979-01-09
Abstract: A method of manufacturing a plastics closure for a container having a neck formed with an annular flange 15 the closure being of the kind comprising a tubular portion (1) having an inner annular projection (7) adapted to co-operate with the annular flange of the container neck, and a capsule-type portion (2) which is closed at the top and connected to the tubular portion (1) via a weakened zone (5), such method comprising die casting in one piece the tubular portion (1), the weakened zone (5) and the capsule-type portion (2) of the closure with the inner annular projection (7) projecting from the inside wall of such tubular portion (1), in the form of a continuous fin inclined towards the opening (6) of the tubular portion (1), extracting the workpiece from the die and folding back the projection (7), subsequent to extraction from the die, giving it an inclination opposite to that obtained by die casting. The outer end (7a) of projection (7) engages the base end of the annular flange (15). <IMAGE>
Patent GB-2040233-A (GB)
Title: Improved method and apparatus for venting hydrocarbon gases from the cargo compartments of a tanker vessel
IPC: B63J2/10
Filed: 1979-01-22
Abstract: An apparatus for venting hydrocarbon gases from the cargo compartments of a tanker vessel comprises valve means, coupled to and communicative with at least two of the cargo compartments and disposed at the top of the compartments. In a method according to the invention, the valve means 20 coupled to one of the cargo compartments from which oil is to be discharged is opened subsequent to discharging oil from the compartment so as to operatively interconnect the compartment with another, empty compartment in the tanker vessel. The vent means 17, 18 of both compartments are then closed so as to render the compartments non-communicative to the atmosphere. The emptied cargo compartment is then filled with a liquid so as to expel the hydrocarbon gases from the compartment and vent the gases to the other of the cargo compartments through the valve means. <IMAGE>
Patent GB-2013582-A (GB)
Title: Arrangement for closing and sealing an opening in a housing
IPC: G09F3/03
Filed: 1979-01-26
Abstract: The arrangement serves for closing an opening in a housing wall of, for example, a meter and simultaneously provides a sealing effect, this opening serving for its part for reaching through the housing wail for the purpose of setting any type of functional assembly located within the housing. As the sealing element, there is provided a stiff flat lamina (4) which comprises breaking points (12/13) and which is insertable by way of wall-parallel pushing into holding means (2/3) which are formed on the housing wall (1) in the area of the opening (8) to be closed. Suitable locking means (6/10), which are formed on the sealing element and the holding means, prevent a destruction- free release of the sealing element. <IMAGE>
Patent GB-2015254-A (GB)
Title: Electrical switch
IPC: H01H9/28
Filed: 1979-02-12
Abstract: An electrical switch has a rotatable operating spindle (12) and an operating knob (13) which is rotatable relative to the spindle and carries a key-operated mechanism (19, 24, 25) for coupling the operating knob (13) to the spindle (12) so that the knob (13) may rotate the spindle (12) to operate the switch. <IMAGE>
Patent GB-2015318-A (GB)
Title: Manufacture of ventilated filter cigarettes
IPC: B05C1/08
Filed: 1979-02-22
Abstract: A method of making ventilated filter cigarettes in which cork portions cut from a perforated cork web are used to join tobacco rods to filter portions, characterised in that adhesive is applied to the cork web along longitudinally extending main areas lying on opposite sides of the perforations, and in that the area between those longitudinally extending main areas of adhesive there are transverse stripes of adhesive at regular intervals, at least part of each strip being inclined to the lines along which the cork is cut to produce individual portions. <IMAGE>
Patent GB-2019472-A (GB)
Title: Improvements in or Relating to Fire Doors and the Like
IPC: E06B5/16
Filed: 1979-02-27
Abstract: The invention concerns a fire door that is so constructed that in the event of a fire any gaps between the door and its surround are automatically and quickly sealed so as to prevent the passage of flame and hot gases past the door. This is achieved by attaching to edges of a door 1 and to opposed edges of a surround 3 therefor for a metal profile 4 in which is held captive a strip or layer of an intumescent material 5 so that in the event of a fire the intumescent material 5 responds to a predetermined temperature rise and swells and forces the outer face 7 of the profile 4 into sealing contact with an adjacent surface of the door surround or other adjacent surface and so provides a continuous barrier to the passage of flame and hot gases there past. <IMAGE>
Patent GB-2016794-A (GB)
Title: Selecting and loading magnetic discs
IPC: G11B17/28
Filed: 1979-03-15
Abstract: A data transducing machine pulls jacketed flexible magnetic disks ("diskettes") into a data transducing station, closes a collet on to a disk driving spindle for rotating the disk and moves magnetic transducing heads into contact with the disk for a data transducing action. The machine includes a clothespin like picker device 186, 188 reciprocable so as to move into embracing relationship with the diskette and to then pull the diskette into the data transducing station. The diskettes can be contained in a magazine which is translatable transversely with respect to the path of travel of the picker device so that the picker device may be operative to grip any one of the series of diskettes, depending on the position of the magazine. The picker device is driven from an electrical stepping motor 164 driving a pulley 160 which in turn drives a belt 166 operatively connected with the picker device, and the pulley 160 carries a pair of cams 156, 158 one of which is effective on a swing arm for moving the collet into engagement with the driving spindle and the other of which is effective on a swing arm for causing engagement of the magnetic transducing heads with the disk for a data transducing action. <IMAGE>
Patent GB-2023045-A (GB)
Title: Method of starting a continuous casting plant
IPC: B22D11/08
Filed: 1979-06-12
Abstract: In a method of starting a continuous casting plant using a starter bar whose cross-section differs from that of the strand to be cast, the head (9) of the starter bar is introduced into the mould cavity and sealed against the mould inner walls, and after pouring in melt to form a cast-on transition piece (16) on the head (9), one or more parts, e.g. the side walls (1, 2) of the mould are adjusted to a desired cross section of the strand to be cast and metal pouring is continued. <IMAGE>
Patent GB-2051089-A (GB)
Title: Heat Setting Poly(Alkyl Acrylate) Dispersions
IPC: C09D11/10
Filed: 1979-07-05
Abstract: Heat-setting pastes of particulate thermoplastic alkyl acrylate and methacrylate polymers with glass transition temperatures below 40 DEG C dispersed in a soft resinous phase are useful as printing inks or when uncolored, as clear overprint coatings.
Patent GB-2025850-A (GB)
Title: Improvements in or Relating to Suspension Files
IPC: B42F15/00
Filed: 1979-07-19
Abstract: A suspension file is formed by folding a cardboard blank into two rectangular portions and edges (3) of the blank are turned over to define channels (4) in which rods (5) are received. The rod ends protrude from the channels (4) and are fitted with plastics runners (6) which include tongues (10, 11) which resiliently grip the cardboard blank (1). The runner (6) also includes a lug (12) which defines with the tongues (10, 11), a slot to receive the suspension bar of a filing cabinet. <IMAGE>
Patent GB-2027238-A (GB)
Title: Clear and wait instruction means and method
IPC: G06F9/30
Filed: 1979-07-20
Abstract: A method of performing a clear and wait operation for a digital processor with a single instruction, the processor (10) including a plurality of programmable registers (18, 24, 30, 32, 34, 36, 38) including a condition code register (24), the method comprising ANDing a byte stored in memory with the contents of the condition code register (24), inhibiting a non-maskable interrupt during the ANDing operation, stacking the plurality of programmable registers (18, 24, 30, 32, 34, 36, 38) and waiting for an interrupt to occur so that the interrupt can be handled without having to save extra data. <IMAGE>
Patent GB-2029467-A (GB)
Title: An improved stitchbonded non-woven fabric
IPC: D04B21/14
Filed: 1979-07-24
Abstract: In a stitchbonded non-woven fabric the stitches are formed on one side of the fabric by needles inserted from the other, a plurality of fibres from the fabric being caught up in each stitch. These fibres tend to close holes in the fabric produced during stitch bonding and render it suitable for use as a filter. The fabric is made on a machine having latch needles provided with barbs. <IMAGE>
Patent GB-2032448-A (GB)
Title: Process for the manufacture of azo and hydrazo dyestuffs and certain dyes so obtained
IPC: C09B29/42
Filed: 1979-09-04
Abstract: The process comprises condensing an acyl hydrazine of the formula   <IMAGE>  with a 2,3,6-trioxotetrahydropyridine of the formula:   <IMAGE> in which R is hydrogen, alkyl, aralkyl, phenyl or substituted phenyl;  R<1> is methyl, phenyl or substituted phenyl;  Y is carbamoyl or acetylamino;  R<2> is an optionally substituted aryl group and R<3> is hydrogen, lower alkyl or aryl to produce a dyestuff of the formula:   <IMAGE> The process provides a route to azo-pyridine dyestuffs which avoids the use of a two-stage diazotisation/coupling. The process also provides novel hydrazo dyestuffs in which R3 is lower alkyl or aryl and which by virtue of the presence of a lower alkyl or aryl group R<3> are fixed in the hydrazo form and are unobtainable by a diazotisation/coupling reaction. The dyestuffs are valuable for the colouration of a variety of natural and synthetic textile materials, for example polyesters, polyamides, polyacrylonitrile, cotton, wool and acetates.
Patent GB-2034305-A (GB)
Title: Preparation of piperidine derivatives
IPC: C07D211/58
Filed: 1979-10-23
Abstract: The invention relates to a new process for the preparation of compounds of value as pharmaceuticals or intermediates. The process comprises a process for preparing compounds of formula I   <IMAGE> and acid addition salts thereof, wherein R is alkyl, cycloalkyl, aralkyl or aryl (including heteroaryl), R<1> is an organic radical, X is oxygen or sulphur and A is an alkylene, mono- or dioxo- or hydroxyalkylene radical of 1-5 carbon atoms, which process comprises reacting a compound of formula II   <IMAGE> wherein R<1> and A are as defined above with an acylurea of formula H2NCXNHCOR wherein R is as defined above and X is oxygen or sulphur and if desired converting the product to an acid addition salt.
Patent GB-2038394-A (GB)
Title: Stressed-skin Reinforced Concrete Stairway Structures
IPC: E04G13/06
Filed: 1979-12-04
Abstract: A support structure (1) for use in forming an externally reinforced concrete stairway includes a plurality of elongated C-channels (3) interconnected, preferably by welding to form a unitary body which serves as formwork receiving fluent concrete, and forms a stressed-skin to strengthen the hardened concrete externally. Riser plates 4 are secured to flanges of the C-channels and to brackets 5 by welding. Additional conventional reinforcement may be provided. The staircase is secured to landings by reinforcement or studs projecting from the landing and embedded in or secured to the staircase. <IMAGE>
Patent GB-2068447-A (GB)
Title: Clamp for posts
IPC: F16B7/14
Filed: 1980-01-30
Abstract: A clamp comprising a hollow rectangular steel section having an internal size larger than the external size of a rectangular supporting post, and having one clearance hole drilled in one side in line with a captive nut welded to the outside of the section, and a set-pin screwed through both items. The clamp can be slid over the supporting post and held in position by tightening the set-pin. With a hinge welded to the outside and used in pairs, two clamps can be used to regulate the height of a cattle feed barrier. One clamp with provision for a latch welded on the outside can be used to secure the feed barrier in the closed position against the other post. <IMAGE>
Patent GB-2052956-A (GB)
Title: Frame constructions
IPC: A47B88/00
Filed: 1980-06-06
Abstract: A set of parts to be assembled to form a frame construction comprises at least three wall panels formed from a continuous panel member divided by V-notches into sections to be folded at right angles to one another about the notches to form the wall panels, and clip members for engagement at the corners of the frame construction to retain the wall panels in their folded condition. <IMAGE>
Patent GB-2077918-A (GB)
Title: Temperature responsive coating agents
IPC: G01K3/00
Filed: 1980-06-07
Abstract: A temperature responsive coating agent comprises a material which liberates ammonia gas on heating and is intended in use to be applied to an article under test e.g. electronic circuitry. Liberation of ammonia gas is detected by a copper phthalocyanine resistor to provide an indication of overheating.