baber/WOPTO huggingface dataset:
Patent GB-535901-A (GB)
Title: Improvements in or relating to fastener or like inserting machines
IPC: A43D69/04
Filed: 1939-10-24
Abstract: 535,901. Nailing. BRITISH UNITED SHOE MACHINERY CO., Ltd., and JAMES, C. H. Oct. 24, 1939, No. 28536. [Class 89 (iii)] In a machine of the kind described in Specification 22456/04, [Class 89], driving a fastener having a bevelled face and clenching the point, the clenched end portions of successive fasteners are caused to extend in the same direction by means engaging the bevelled face as the fastener passes through its guiding passage. The passage 62 normally receives a portion 86 of a latch 80 urged clockwise about its pivot 82 by a spring 88. As the fastener drops into contact with, or is driven past a plane face 92 of the latch, the fastener rotates on its own axis to the position shown, which ensures that the ends do not emerge at the side of the work. A stop surface 94 of the latch limits its swing so that the face 92 is in line with the side of the passage while the fastener is driven.
Patent GB-285598-A (GB)
Abstract: 285,598. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Dec. 7, 1926. Barbituric acids containing alkinyl groups (alkyl groups having a triple band) are prepared according to the usual esterification methods for the production of barbituric acids, but using alkinyl esters for alkyl esters. Thus, monoalkylmalonic acid esters are converted into alkylalkinylmalonic acid esters which are treated with urea, or monoalkylbarbituric acids are esterified with alkinyl esters. The products, which in addition to the alkinyl group may contain an alkenyl instead of an alkyl group, possess enhanced soporific properties. According to the examples, (1) isopropylpropargylbarbituric acid is obtained by treating a solution of isopropylbarbituric acid in alcoholic caustic soda with 3- bromopropine-1; using the hydrobromic ester of butin-2-ol (obtained from the butinol by the action of hydrobromic acid), isopropylmethylpropargylbarbituric acid is produced; in the same way, by the use of isopropenylpropargyl bromide, isopropenylpropargylisopropylbarbituric acid results ; (2) malonic ester is treated with diethylmethyl bromide and the resulting diethylmethine malonic ester then condensed with urea ; the diethylmethinebarbituric acid so produced is dissolved in a solution of sodium in alcohol and heated with propargyl bromide; the product comprises prapargyldiethylmethinebarbituric acid. Isopropenylpropargyl bromide is prepared by treating isopropenylacetylene with magnesium ethyl bromide, reacting on the product with formaldehyde to give isopropenylpropargyl alcohol, and then forming the bromide by treatment with phosphorus tribromide.
Patent GB-911914-A (GB)
Title: Improvements in or relating to astronomical, navigational and like apparatus
Inventor: UTTLEY ALBERT MAUREL
IPC: G01S3/788
Filed: 1946-09-24
Abstract: 911,914. Navigational instruments. UTTLEY, A. M., JONES, S., and MANNS, L. Dec. 13, 1947 [Sept. 24, 1946], No. 28576/46. Class 97 (2). [Also in Groups XXXV and XL (c)] Two telescopes 10, 11 are adapted to view two chosen stars and electric signals are produced measuring misalignment of their axes from the directions of these stars, and converted automatically into error voltages which are fed into driving means adapted to nullify the misalignment. The telescopes are clamped in positions determined by the declinations of the chosen stars S<SP>1</SP>, S<SP>2</SP> to rails 12, 13 fixed to rings 16, 17. The rings 16, 17 and an intermediate ring 18 are free to rotate about a vertical axis within a ring 19 which is gyro-stabilized horizontally. A prism 20, in the form of a truncated pyramid having base angles of 45 degrees and parallel silvered faces, is rotatable about a horizontal E-W axis and is correctly aligned when a telescope at 10<SP>1</SP> points towards the North or South celestial Pole P. A mask comprising opaque spokes, Fig. 5a, is associated within each telescope with a motor-driven scanning mirror to cause the star image to follow a circular locus 23. When the locus 23 is eccentric, as shown, the pulse signal sent by an electron multiplier photo-tube is frequency-modulated as starlight passing the spokes falls on the cathode of the tube in unequal flashes. A.C. misalignment signals Sd<SP>1</SP>, Sh from telescope 10 and Sd<SP>2</SP> from telescope 11 are obtained from the frequencymodulated pulse signals. These misalignment signals are in polar co-ordinates and are converted in a computer to error voltages #l #C, #h in cartesian co-ordinates representing changes in latitude course and hour angle. These error voltages are amplified and applied to two-phase servomotors 61, 60, 59 which drive the prism 20, ring 18 and rings 16, 17 respectively. The rings 16, 17 are connected to shafts 78, 79 and are driven in part by a clock 68 keeping sidereal time and in part by the motor 59. The latitude l and the angles h<SP>1</SP>, h<SP>2</SP> and h<SP>2</SP>-h<SP>1</SP> are supplied to the computer 50 and manual controls 74, 75, 82 are provided for initial setting of the sidereal hour angles of both stars and the declination of one star. The servomotors also operate a device 81 displaying navigational data such as course, latitude and longitude or may effect guiding adjustments to an aircraft in which the apparatus is mounted. The viewing means shown in Fig. 1 is unsuitable in equatorial regions and for these regions the device is modified by fixing the prism 20 and providing the rings 16, 17 with rotation about a horizontal N-S axis, Fig. 2 (not shown).
Patent GB-1447813-A (GB)
Title: Rolling mill
IPC: B21B13/18
Filed: 1974-06-27
Abstract: 1447813 Rolling mills A I WILSON 24 June 1975 [27 June 1974] 28576/74 Heading B3M A mill stand comprises a pair of mountings 21 each supporting a work roll 25, 27, the mountings being pivotally connected together at 33 about an axis parallel to the roll axes and on one side of the plane containing the roll axes, means causing a part of each mounting to move cyclically so that each roll axis moves around a closed path having a part approaching the pass line, and means for driving the rolls about their axes. In Fig. 2, each mounting 21 is supported by a pair of cranks 15A, 16A (one of each shown) on shafts 15, 16 rotatable in the housing which consists of uprights 12 and cross-members 14. The mountings are connected by a joint on each side of the pass (one shown) consisting of bifurcated leg 30, leg 32, and pin 33, these joints being separate from the housing. When shafts 15, 16, are rotated, Fig. 3A, pins 33 reciprocate along the pass line, and each roll axis describes a path 41. The peripheral speed of the roll due to its rotation exceeds that due to its travel around the path, so that when the rolls contact the work, they urge it in the feed direction 31.
Patent GB-287135-A (GB)
Abstract: 287,135. Kßrpßti, J., and Hubsch, M. G. March 16, 1927, [Convention date]. Acetic acid; acetaldehyde.-Acetic acid is produced by passing acetylene and oxygen into glacial acetic acid containing a mercury salt and cellulose fibres. Instead of cellulose fibres, vegetable fibrous materials such as sawdust shavings, or straw which have been slightly carbonized on the surface by heating in a stream of nitrogen at 200‹ C. and activating with highpressure steam, may be used. The best yields are obtained when only the quantity of water required for the hydration of the acetylene is present, and this is preferably added in the form of dilute acetic acid. In an example an acetylene-oxygen mixture is passed into acetic acid of 96 per cent strength containing mercury sulphate and cellulose, at 35-40‹ C., fermentation acetic acid being then added and acetylene and oxygen being again supplied, or the fermentation acid may be supplied continuously. In another example the cellulose is replaced by hard-wood sawdust which has been heated in a stream of nitrogen and activated with steam, and the acetylene and oxygen are supplied alternately.
Patent GB-864165-A (GB)
Title: Hydrocarbon chlorination process
IPC: C10G73/38
Filed: 1959-08-21
Abstract: A process for chlorinating a hydrocarbon mixture comprising a major proportion of a soft paraffin wax and a minor proportion of a normally liquid paraffinic hydrocarbon oil is characterised by an initial stage of contacting the hydrocarbon mixture with a chlorine-containing gas, passing the resulting mixture at an elevated pressure through a reaction zone, passing the resulting product mixture to a disengaging zone operated at an elevated pressure but at a pressure lower than in the reaction zone, wherein by-product hydrogen chloride and unreacted chlorine gases are separated from the chlorinated hydrocarbon mixture separately recovering the gases and the chlorinated hydrocarbon mixture and continuously passing the latter back to the reaction zone, along with additional chlorine-containing gas, continuing the sequential operations of reaction, disengaging and recycling, withdrawing at least a portion of the chlorinated hydrocarbon mixture from this stage of the process, passing the withdrawn chlorinated hydrocarbon mixture to at least one other succeeding stage containing a separate reaction zone and disengaging zone, the reaction zone having a pressure greater than the pressure in the reaction zone of the preceding stage and the disengaging zone having a pressure no less than the pressure in the reaction zone of the preceding stage, continuing the sequential operations of reaction, disengaging and recycling in the succeeding stage while passing chlorinated hydrocarbon recovered from the preceding stage and chlorine-containing gas into said stage, passing the chlorine and hydrogen chloride gases recovered from the disengaging zone to the reaction zone of the preceding stage, and recovering from the succeeding stage a chlorinated hydrocarbon mixture having a higher chlorine content than the chlorinated hydrocarbon mixture withdrawn from the preceding stage.  Preferably at least three stages are used.  Preferred hydrocarbon mixtures contain 55-80% of the wax and 20-45% of the oil; a minor proportion of a solvent may be present, e.g. a mixture of highly branched chain saturated hydrocarbons containing at least eleven carbon atoms.  The temperature in each stage is preferably 50-140 DEG C.; actinic light may be used.  The product chlorinated wax may be blown with air or nitrogen, and may be stabilized by the incorporation of e.g. glycols, polymers of epoxy-alkyl alkenyl ethers, tin hydrocarbons and iron salts. Specification 864,166 is referred to.
Patent GB-1008455-A (GB)
Title: Manufacture of pyridine and substituted pyridines
Inventor: IAN CAMPBELL JOHN ANTHONY CORR
IPC: C07D213/14
Filed: 1963-07-19
Abstract: Pyridine or substituted pyridines are prepared by interacting an ether of 2-hydroxy-3,4-dihydro-2H-pyran or of a substituted derivative thereof with ammonia in the vapour phase at an elevated temperature in the presence of a catalyst comprising a compound or compounds of boron, phosphones and oxygen.  Suitable reaction temperatures are between 200 DEG  and 500 DEG  C. and the vapour phase may contain diluent gases or vapours.  The compound(s) of boron, phosphorus and oxygen is (are) preferably deposited on a support material, advantageously by impregnating the carrier with an aqueous solution containing boric and phosphoric acids and subsequently drying and calcining the impregnated material. Specified ether reactants are those of the general formula <FORM:1008455/C2/1> wherein R1, R2, R3 and R4 represent hydrogen atoms or alkyl radicals, and R represents an alkyl radical or an aliphatic chain interrupted by one or more oxygen atoms.
Patent GB-152878-A (GB)
Title: Improvements in chairs
IPC: A47C4/08
Filed: 1919-11-19
Abstract: 152,878. Goodearl Bros., and Barnes, A. E. Nov. 19, 1919. Folding seats.-In a folding chair, the back A is hinged to the seat B so that it can be turned to bear against the bottom of the chair between the legs, and arms D are provided, hinged to the sides E so that they can be folded down to lie upon the top of the seat. Hooks G are provided to hold the arms and back in the position for use..
Patent GB-1112278-A (GB)
Title: Method of and apparatus for forming plastics sheet material
Inventor: DUCRUEZ RAYMOND PHILIPPE
IPC: B32B38/14
Filed: 1965-07-07
Abstract: 1,112,278. Shaping expanded sheet material. R. C. BUCHMANN. 7 July, 1965, No. 28846/65. Heading B5A. During the forming of an article from an expanded plastics sheet material, e.g. polystyrene, the sheet is immersed in a heated liquid bath or in a steam bath, thus preventing the material from drying and obviating the subsequent cracking thereof. The sheet may be formed by any conventional means and, in one embodiment (see Fig. 1, not shown), is formed in a heated liquid bath by co-operating belts, one of which carries male members whilst the other carries female members. In a second embodiment the sheet is formed between a ridged drum and a co-operating belt, whilst in a third embodiment co-operating male and female dies mounted upon a rotary member for index to filling, moulding, cooling and removal stations, are used. In a fourth embodiment, moulds slidable around a closed circuit are indexed first to a hot liquid bath then to a cooled one.
Patent GB-1444693-A (GB)
Title: Web printing method and machine
IPC: B41F15/24
Filed: 1974-06-28
Abstract: 1444693 Screen-printing machines MITTER & CO 28 June 1974 [28 June 1973 8 Jan 1974] 28875/74 Heading B6C In a screen-printing machine having one or more rotary stencils printing on a web supported by a blanket, the blanket is driven at a higher speed than the web so as to maintain the web under tension during printing. In one embodiment, Fig. 1, web 1 is passed between rollers 2 to a tensioning device 3, loop 10 formed in the web being regulated by a light-sensitive device 7 connected to the main drive. The web passes around an intake roller 40 provided with a gripping surface 41 and is fed onto blanket 5 and under rotary stencils 6. The endless blanket 5 passes around rollers 50 to 53 roller 50 being directly connected to main drive shaft 8. The drive shaft 8 is coupled via drive shaft 82 and angle drives 81 to the stencils 6 and optionally to the intake roller 40 which could alternatively have a separate drive. Each stencil drive or the intake roller drive includes planetary transmissions and a control motor so that individual speeds can be regulated (Figs. 2 and 3, not shown). Thus, all the printing mechanisms can be driven synchronously with the web 1 or can be driven at different speeds to change the pattern being printed. Some slippage between the stencils 6 and the web can be incorporated, e.g. around 1 to 2% speed difference, to assist equalisation of tension. In a further embodiment, Figs. 5 to 7, (not shown), a slipping clutch (44) can be incorporated in the drive of the intake roller 42: the tension in the web is consequently self-regulating.
Patent GB-751703-A (GB)
Title: Improvements in or relating to wound magnetic cores for mounting in preformed electric coils
IPC: H01F27/25
Filed: 1954-10-07
Abstract: 751,703. Transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Oct. 7, 1954 [Oct. 15, 1953], No. 28879/54. Class 38 (2). A laminated magnetic core 10 is wound from a corrugated strip of magnetic silicon iron strip having magnetically oriented characteristics, the core being formed in two or more annular sections 13, 14, 15 wound from strips of differing widths so as to give the core substantially a maximum cross-sectional area. Specification 672,430, showing a method of producing the corrugated strip, is referred to.
Patent GB-903674-A (GB)
Title: Improvements in or relating to adjustable cam devices
Inventor: THURSTON BRYAN OLIVER
IPC: F16H53/04
Filed: 1959-08-24
Abstract: 903,674. Cams. SANGAMO WESTON Ltd. Aug. 10, 1960 [Aug. 24, 1959], No. 28898/59. Class 80 (3). An adjustable contour helical cam, particularly for an oil burner control unit, comprises an incomplete ring 20 of flexible material, such as nylon, and means for adjustably displacing the two ends of the incomplete ring relatively to one another in a direction parallel to the ring axis. The ring 20 is of rectangular cross-section and is split radially at 21, the opposed ends having integral drilled and tapped bosses 22, 23 through which pass adjusting screws 25, 26. A rotatable control knob 10 houses the heads of the screws 25, 26 and carries a semi-cylindrical mounting body 16 having a plate 29 at its lower end which supports the lower ends of the screws 25, 26. A guiding projection 24 on the ring 20 engages the mounting body 16 on the side remote from the split 21. The cam 20 is engaged by a follower member 32 which is moved axially by rotation of the control knob 10. Rotation of the screws 25, 26 in the same direction produces axial movement of the cam 20 whilst rotation of the screws in opposite directions changes the shape of the helix. In a modification the cam is in the form of a helix having more than one turn.
Patent GB-714778-A (GB)
Title: Petrol tank cover
Inventor: SMITH WILLIAM BERNARD
IPC: B62J35/00
Filed: 1951-12-11
Abstract: 714,778. Covers for motor cycles. MIDLAND GEAR CASE CO., Ltd. Dec. 10, 1952 [Dec. 11, 1951], No. 28946/51. Classes 79(3) and 136(1) A petrol tank cover for a motor cycle comprises a flexible weather proof jacket 1 to straddle the top and sides of the tank, the top part 3 having openings 6 to accommodate the petrol and oil filler closures, straps 14 extending under the tank for fastening the jacket in position, and knee grips 10 for the rider on the sides 4 of the jacket. The knee grips consist of pouches, containing sponge rubber pads, sewn at their boundary edges 11 to the jacket. The top 3 is provided with a pocket 8 fitted with an edge to edge fastener 9. The front 2 of the jacket has an opening 5 to permit it to fit closely about the fore part of the motor cycle.
Patent GB-970005-A (GB)
Title: A contact making and bridging member for printed circuit boards
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R12/71
Filed: 1962-07-27
Abstract: 970,005. Two-part couplings. PRESSAC Ltd. May 28, 1963 [July 27, 1962; Oct. 1, 1962], Nos. 29008/62 and 37046/62. Heading H2E. A connecting member 1, for connecting two printed circuit boards 4 and 9, comprises a pair of outer prongs 2, which pass through an opening 3, in the first printed circuit board 4, and are soldered at their free ends to the printed circuit wires 7 at each side of opening 3, and a pair of intermediate prongs 8, in the same plane as the outer prongs 2, and between which can be inserted an edge of the second printed circuit board 9 through an opening in, and in a plane perpendicular to the first board 4 so that one of the pair of intermediate prongs engages a contact strip 11, of the printed circuit board 9. In a modification the two intermediate prongs are replaced by one prong and the second printed circuit board is supported between one of the outer prongs and the central prong.
Patent GB-173896-A (GB)
Title: Improvements in advertisement signs and the like
IPC: G09F11/02
Filed: 1920-10-13
Abstract: 173,896. Moore, H. W., and McWhirter, A. Oct. 13, 1920. Reel and endless-web apparatus; rotary prism apparatus. - In advertisement signs &c. of the type in which rollers are actuated intermittently by a vertical reciprocating rod carrying pawls which operate the rollers, the pawls f are mounted directly on the rod d and act upon pins or equivalents k which extend from the roller extremities parallel to the roller axes. The rod d carries at its lower end a roller c which rests on the surface of a cam, eccentric, &c. b or on the undulating surface of an horizontal rotary member. The sign may be mounted on a vehicle, bill-board, hoarding, &c., or in shops or fields, and may be driven by any source of power. A trip mechanism may be employed for retaining one or more of the rollers in one position during two or more movements of the remaining rollers. Such a device is shown in Fig. 1 applied to the middle square roller i, and consists of a lever n, o balanced or sprung to remain in the position shown in full lines, and to hold the corresponding pawl f away from the pins k. One of the pins k of the upper roller i is formed long enough to reach the arm n of the lever n, o and to move it to the position shown in dotted lines, thus allowing the pawl f of the middle roller i to actuate that roller once for every four actuations of the upper roller i. The rod d is made in elongated U formation, and the pawls f are adjustable along its length. The advertisements may be carried directly on the faces of the rollers i or on endless bands passing over the rollers. Fig. 3 shows bands q and rollers i which are in the form of discs having teeth t which drive sprocket-wheels, s engaging perforations in the edges of the bands q. When carried directly on the rollers the signs may be interchangeable, for example, by slip-in metal letters, sheets, or glass panels, and the rollers may be internally or externally illuminated.
Patent GB-1361179-A (GB)
Title: Emulsifying compositions
IPC: C09K23/00
Filed: 1971-06-14
Abstract: 1361179 Emulsifying agents BRITISH PETROLEUM CO Ltd 14 June 1971 [16 June 1970] 29020/70 Heading B1V [Also in Division Cl]  An emulsifying composition for forming oilin-water emulsions comprises a condensation product of 1 mol of one or more long chain (i.e. C11-C20) aliphatic alcohols with 1.5 to 6.0 mols of ethylene oxide dissolved in a refined kerosine containing less than 5% by vol. of aromatic compounds. The aliphatic alcohols specified are lauryl, myristyl, cetyl, oleyl and stearyl. Alcohol mixtures may be obtained by hydrolysis of sperm oil. The composition may contain an alcohol containing up to 3C atoms (e.g. isopropyl alcohol) as a solubilising agent. Reference has been directed by the comptroller to Specification 1205235.
Patent GB-836607-A (GB)
Title: Improvements in control systems for power operated forming presses
IPC: B30B15/14
Filed: 1956-09-24
Abstract: 836,607. Systems for transmitting mechanical power. IGRANIC ELECTRIC CO. Ltd. Sept. 24, 1956 [Sept. 23, 1955], No. 29118/56. Class 38 (4). A control system for a power press 10 or the like driven by an electric motor 17 has the drive from the motor 17.transmitted to the press 10 by an electromagnetically operated magnetic particle clutch 20, the press 10 being provided with an electromagnetically operated magnetic particle brake 27, an electromagnetically released friction brake 12 and a plurality of limit switches 15, the operations of which switches are dependent upon the position of the ram of the press. The operations of the clutch 20 and the brake 27 are controlled by a plurality of electromagnetic relays, the control coils and contacts of which are so interconnected with each other and with the limit switches and a number of switches of the push-button type that all the relays controlling the clutch 20 must pick up before the clutch can be energized, that drop out of any one of the clutch control relays will de-energize the clutch and that pick up of any one of the control relays for the brake 20 will cause energization thereof. Closure of a " START " switch energizes a relay to put the motor 17 on the mains and also causes energization of the operating coil 14 to release the friction brake 12. If, during the operation of the press, any .of the relays fail to operate satisfactorily the friction brake will be re-applied. Delay means are also provided so that energization of the brake 27 may be delayed for a predetermined time pending de-energization and discharge of the control winding of the clutch 20, the brake 27 being energized immediately if the delay means fail. Various other switches are incorporated whereby the press can be controlled to have single cycle operation or " inching " operation.