baber/WOPTO huggingface dataset:
Patent GB-703715-A (GB)
Title: Pantograph
IPC: B43L13/10
Filed: 1951-05-25
Abstract: 703,715. Mathematical drawing instruments OTT, H. May 25, 1951, No. 12353/51. Class 97(3) The parallelogram bar structure of a pantograph carries guides'for the implements of the system points which points coincide with the axes of the guides and these latter have:- surfaces 23, Fig. 2, disposed directly or closely beneath the underface of the bar structure for supporting the structure practically on the drawing plane 54. Each guide comprises a hollow joint pin 15, Fig. 2, adapted for longitudinal sliding of one of the system tools e.g., the pole pin 25 provided with the needle 24. Alternatively a guide comprises a ring 45, Fig. 3, with an insert 47 having a longitudinal bore for guiding the marking tool 51 or a tracer. The holding sleeve 50 for the marking tool 51 can slide in its bore 49 against the action of spring 52 to strike the drawing plane 54. The tracer is a magnifying lens 71, Fig. 5; with a tracer mark thereon, carried in a holder 70 accommodated in a ring 67 at the extended end of bar 13. The holder 70 is similar to and exchangeable with the insert 47 of ring 45 and has a rotatable member 69 for manipulating the tracer. A wire-operated release 63, 64, Fig. 7, similar to a photographic shutter release is provided to operate the marking tool 51. The fourth bar 14, Fig. 1 is connected to side bars 11, 13 by slidable sleeves 31, Fig. 3 which have spring urged clamping members 35. Joint pins 17, 18, are secured to sleeves 31 and mounted on the pins are short arms 38, Figs. 1 and 3 secured at right angles to the bar 14. One of the tools, e.g. the marking tool, carried on a slide 39, Fig. 1, on the bar 14 is similar to slides 31 but carries a holding plate 43 supporting a ring guide 47 in alignment with the pivot pins 17, 18. Each joint 16, 17, 18 in addition to the pole acting joint 15 is provided with a foot 30, Fig. 2, or 36, Fig. 3, having a surface for supporting the bar system on the drawing plane 54: A counter-balance weight 75, Fig. 1, is secured at the end of a cranked. arm 76 held on the bar 12 by a pin and notch arrangement; the weight is supported on small roller.
Patent GB-940571-A (GB)
Title: Improvements in or relating to devices for locating cutting tools in machine tools
Inventor: BENTON JOHN CHARLES
IPC: B23Q17/22
Filed: 1959-04-13
Abstract: 940,571. Jigs. NATIONAL RESEARCH DEVELOPMENT CORPORATION: April 8, 1960 [April 13, 1959], No. 12395/59. Heading B3C. A device for setting a drill or like tool to the required pitch circle diameter comprises a body 1 having a cylindrical surface 5, a spigot 6 and a pin 2, the parts 5, 6 and 2 being in accurate coaxial relationship to each other. A disc 3 is rotationally locked in a recess in the body by a bolt 7 or a grub-screw 14, the disc carrying an eccentrically mounted pin 4. In operation, the device is held in the work-chuck of a machine tool by the surface 5 or the spigot 6, and the pin 4 is set to the required pitch circle diameter by a slip gauge 9 the disc being allowed to rotate and then to be clamped. The drill in the tool chuck is aligned with the pin 4 by a bush located on the pin 4 which receives the drill, and the device is then replaced by the work. In a modification, a mandrel may be used in the tool chuck to engage the bush, which can then be replaced by the drill after setting. A dial gauge mounted on the tool chuck for rotation about the mandrel may be used when extremely accurate work is required, and an extension-arm carrying a pin 4 may be secured to the disc 3 to increase the range of the device. The disc 3, or the body 1 may be graduated to indicate the various pitch circle diameters.
Patent GB-564568-A (GB)
Title: Improvements in or relating to windscreen wipers
IPC: B60S1/34
Filed: 1943-08-03
Abstract: 564,568. Windscreen cleaners. TRICO PRODUCTS CORPORATION. Aug. 3, 1943, No. 12519. Convention date, Sept. 17, 1942. [Class 138 (i)] A windscreen cleaner of the kind in which the wiper is operated by an arm 7 pivoted to an inner section 11 which is detachably connected to a serrated head 8 driven by a motor shaft 2, is constructed with a pivoted latch 17 for securing the device to the head 8, the latch 17 being automatically disengaged to permit withdrawal of the section 7 by swinging the arm 7 to the position indicated by dotted lines 22. The arm 7 is provided with a pivot 14 mounted in a bearing 15 on the section 11, and the latch 17 is acted upon by a spring 20 which maintains a keeper 18 in contact with internal teeth on the head 8, and also acts upon the section 7 to maintain the wiper in contact with the windscreen. The pivot 16 of the latch is arranged near the head 8, and the latch is formed with a curved part 23 to permit the section 7 to move to the position 22 without restriction by the bearing 15. Specification 554,705 is referred to.
Patent GB-594460-A (GB)
Title: Improvements in vapour-containing resonators
IPC: H01J17/04
Filed: 1944-06-30
Abstract: 594,460. Discharge apparatus. M-O VALVE CO., Ltd., CLACK, B. N., and HARRIS, N. L.June 30, 1944, No. 12536. [Classes 39 (i), 40 (iii) and 40 (v)] An electrical circuit arrangement consists of a concentric transmission line 3 from a generator to a load with a branch line 4 coupling high frequency energy through a resonant circuit to an apparatus to be protected from this energy when it exceeds a critical value. The resonant circuit consists of two coaxial tubular conductors 7 and 8 with slidable extensions 7<1> and 81 short circuited and providing tuning means, the opposite ends of tubes 7 and 8 terminating in electrodes 11 and 12 sealed in a discharge tube 6 with primer electrode 14 connected to negative bias to aid the discharge which occurs across gap 13 between electrodes 11 and 12 when the power level in line 3 rises to a critical value. The discharge tube 6 is filled with a mixture of an inert gas such as argon, hydrogen, nitrogen and a condensable vapour, i.e. one whose vapour pressure at - 40‹ C. is less than 2 mms., e.g. water vapour, methyl alcohol or ethyl alcohol. In an alternative form the gas filled cavity is the resonator itself and the energy is coupled by means of a wave guide as in Fig. 2 (not shown).
Patent GB-1225011-A (GB)
Title: Phosphorus acid esters and their use in the stabilisation of polymers
Inventor: BRIGGS PETER JAMES
IPC: C07F9/08
Filed: 1967-03-17
Abstract: 1,225,011. 2,2-Di(hydroxymethyl) alkyl phosphites and derivatives thereof. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 March, 1968 [17 March, 1967], No. 12563/67. Heading C2C. [Also in Division C3] Compounds of formula (RO)P(OH) 2  where R is a 2,2-di(hydroxymethyl) alkyl group or acyl derivative thereof, which group may contain a second phosphorous acid monoester group, are prepared by one of the following methods: (a) reaction of a 2,2-di(hydroxymethyl) alcohol or appropriate derivative thereof with PCl 3  to give a dichlorophosphite which is then hydrolysed to the monoester, (b) hydrolysis of a bicyclic 1,1,1-trimethylol-alkane phosphite or (c) hydrolysis of a monocyclic hydroxymethyl-dimethylolalkane phosphite. Specified compounds are 2,2-di(hydroxymethyl) butyl phosphite and the bis-phosphorous acid esters of pentaerythritol and dipentaerythritol. The compounds are used as stabilizers for polymers.
Patent GB-1178565-A (GB)
Title: Method of and apparatus for Joining Sheets formed of Plastic Material
IPC: C09J5/10
Filed: 1967-03-17
Abstract: 1,178,565. Seaming non-metallic sheet material. PERALT ANSTALT. 17 March, 1967 [24 March, 1966], No. 12582/67. Heading B5K. Sheets of plastics material are joined to form a lap seam by applying a welding solvent simultaneously over the whole length of the surface edges to be joined and subsequently applying pressure over the entire length of the edges to form the seam. Polymers and copolymers of polyvinyl chloride are specified as suitable plastics material and tetrahydrofuran is a specified solvent. The sheets may be joined by a conventional lap seam, Fig. 3a (not shown), or laminated sheets may be joined to form a flat sheet by removing one or more laminations, Fig. 3b. In one embodiment, Fig. 1, sheets 1, 2 are positioned on surfaces 4, 5, the sheet 2 having been previously joined to a sheet 7 by a seam 6. The surfaces 4, 5 are formed by table tops or, in a modification (not shown), by endless belts. The surface 5 is situated at a lower level than the surface 4. The sheet edges 11, 12 to be joined depend downwardly under their own weight so that they are angled into the spray 14 produced by fixed nozzles 15 which are regularly spaced along the whole length of the seam to be produced. A measured quantity of solvent is sprayed by the nozzles 15. After spraying, the surface 5 is moved upwardly and, simultaneously, pressing bars 18, 19 extending over the entire seam length are forced together to complete the join. In another embodiment, Fig. 4, one supporting surface 35 is inclined relatively to the other surface during spraying of the solvent by nozzles 45 and is brought into the same plane as the surface 36 while pressure is applied. Pressing members 48, 49 are pivoted to actuating rods 52, 53 at 50, 51 and have resilient surfaces provided with suction openings to hold the sheet edges 61, 62 in the position of Fig. 4 during spraying. A shield 70 is provided for the upper surface of the sheet 2 during spraying and is biased against this sheet by a spring 71. In a further embodiment (not shown), the solvent is applied by rolls impregnated therewith.
Patent GB-343820-A (GB)
Title: Improvements in or relating to speed governors for electric driving motors for gramophones and the like
IPC: G11B19/28
Filed: 1930-04-23
Abstract: 343,820. Maintaining defined speed of motors. BETHENOD, J., 79, Boulevard Haussman, Paris. April 23, 1930, No. 12590. Convention date, Jan. 20. [Class 38 (iii).] A gramophone motor of the series commutator type is fitted with a centrifugal governor controlling the motor circuit for maintaining the motor speed constant, and an antiinduction screen is placed around the contacts operated by the governor to prevent disturbances in an amplifying apparatus combined with the gramophone. Upon an increase of motor speed the governor 3 separates contacts 5, 6 in the circuit of a relay 16, which being de-energized, inserts an impedance 18 in the motor circuit to reduce its speed. An impedance 17 reduces the sparking between the contacts 5, 6. A casing 9 with a cap 10 totally enclosing the governor forms the anti-induction screen around the contacts 5, 6, behind which the relay operated contact may also be shielded. The relay 16 may be either electromagnetically or electronically operated. The normal speed of the motor is adjusted by varying the position of a lever 7 attached to the contact 6.
Patent GB-1444050-A (GB)
Title: High-molecular weight cellulosic derivative of 2-diethylamino ethyl-para-aminobenzoate hydrochloride and method of preparing  same
IPC: C08B11/15
Filed: 1974-03-21
Abstract: 1444050 Cellulose linked to diethylaminoethylp-aminobenzoate residues INST KHIM DREVESINY AKAD NAUK LATVII SSSR and RIZH MEDITSIN INST 21 March 1974 12697/74 Heading C3A A cellulose derivative has the general formula where x is the degree of substitution and is from 0À6 to 1À0 and n is the degree of polymerization, which is from 40 to 120. The derivative is prepared by reacting carboxymethyl cellulose methyl ester with 2- diethylaminoethyl - p - aminobenzoate hydrochloride in an aqueous medium.
Patent GB-387554-A (GB)
Title: Improvement in buckle for garment supporters
IPC: A41F3/02
Filed: 1932-05-03
Abstract: 387,554. Buckle fastenings. HAWIE, M., 729, North Washington Avenue, Bridgeport, Connecticut, U.S.A. May 3, 1932, No. 12724. Convention date, Dec. 29, 1931. [Class 43.] A buckle adapted for suspender webbing comprises a frame 10 having a slot 11 for passage of the main part of the webbing and a pivoted lever which comprises a handengaging portion 19 and a rear web-engaging portion 20. The latter has a straight edge 21 and is formed with a rearwardly extending lug or lugs 22, the lower edges whereof are in the same plane as the edge 21. A single lug may be provided centrally in the portion 20. The lever and lug may be stamped out of sheet metal and attached to a bar 12 by curled portions 18. The edge of the slot 11 is straight. The returned end of the webbing may be attached to the buckle by stamped-out tongues 14. The frame 10 is reinforced by ears 16 turned at right-angles thereto.
Patent GB-726260-A (GB)
Title: Quaternary amino compounds and processes for the production thereof
Filed: 1953-05-07
Abstract: The invention comprises quaternary amino compounds of the formula <FORM:0726260/IV (b)/1> in which R is an alkyl group of 1 to 3 carbon atoms, Z is the radical -CY=Y1C- or -CHY-CHY1-, where Y and Y1 are hydrogen or alkyl groups containing 1 to 6 carbon atoms, and Hal is a halogen.  They are prepared by reacting the alkali metal phenolate of the 4,41-diphenol of the residue Z with 2 molecular equivalents of 2-dialkylamino-chloroethane to form the bis-(2-dialkylaminoethoxy-4-phenyl) derivative of Z, which is then quaternized with an alkyl halide.  Examples describe the preparation of (1) the di-iodide of 1,2-bis-(4 - (2 - trimethylammonium - ethoxy) - phenyl)-pentene-1, and (2) the di-iodide of 1,2-bis-(4-(2-trimethylammonium - ethoxy) - phenyl) - pentane. Compounds also are described in which Z in the formula is -CH :CH-, -CH : C(CH3)-, -CH : C(C2H5)-, CH : C(iso C3H7)-, -CH : C(nC4H9)-, -C(C2H5) : C(C2H5)-(Cis and trans), -C(nC4H9) : C(nC4H9)-, C(nC6H13) : C(nC6H13)-, -CH2-CH2-, -CH2-CH(CH3)-, -CH2-CH(C2H5)-, -CH(C2H5)-CH(C2H5)-, -CH2-CH (iso C3H7)-, and -CH2-CH(nC4H9)-The 4,41-diphenol of the saturated residue Z may be prepared by catalytic hydrogenation of p  the corresponding known unsaturated 4,41-dimethoxy derivatives followed by demethylation.
Patent GB-241481-A (GB)
Title: Improvements in or connected with gasholders, tanks and the like
IPC: E04H7/06
Filed: 1924-12-29
Abstract: 241,481. Milbourne, R. J., and Cutler, S. Dec. 29, 1924. Girders.-The crown sheets of circular gas holders. tanks &c. are supported by trusses constructed so that the strength thereof from the centre to the periphery increases proportionately to the increase of bending movement and the material of the trusses is subjected to a uniform maximum stress. Fig. 1 shows a gas-holder roof truss comprising a main rafter a, struts b, and tension rods c and having an outline conforming to the funicular polygon diagram. The centre column e is connected to the outer end of the rafter a by means of a tension rod f which may be constructed as described in Specification 235,962. The, struts h are arranged in the direction of the perpetual loads and may be connected by cross-he-rods b<1> which carry the stresses due to occasional loads.
Patent GB-1026900-A (GB)
Title: Rectification of high voltages at high frequencies
IPC: H01L25/07
Filed: 1965-03-25
Abstract: 1,026,900. Rectifying. SIEMENS-SCHUCKERTWERKE A.G. March 25, 1965 [March 25, 1964], No. 12798/65. Heading H2F. A rectifying arrangement for supplying E.H.T. to a cathode-ray tube comprises a voltage source of more than 5 Kv at a frequency higher than 10 kc/s. feeding a rectifier element comprising a stack of selenium rectifier tablets, each of which has an active rectifying area which is between <SP>1</SP>/ 4  and <SP>1</SP>/ 100  of the total area of one of its major faces. As shown, each element has an aluminium electrode 16, a selenium layer 17, an insulating layer 18 of paper or lacquer with a central hole 18<SP>1</SP>, and an electrode 19 which projects through the hole to make contact with the layer 17. The rectifying area is limited to the area of the hole. The tablets are mounted in a tube 11, are held by spring 14 and are connected with terminals 13. The arrangement is concerned with minimizing the effect of the non-linear voltage distribution along the stack.
Patent GB-841448-A (GB)
Title: Improvements in and relating to a draught control device
IPC: F24C15/00
Filed: 1958-04-22
Abstract: 841,448. Dampers ; thermostats.VEREEN IGDE BLIKFABRIEKEN N. V., DE. April 22, 1958 [Feb. 21, 1958], No. 12800/58. Class 126. A draught control device for the combustion chamber of a stove having a threebranched pipe interconnecting a flue 2, a combustion chamber 3 and an enclosure 4 which it is desired to heat by the stove comprises a valve 5 supported by a bimetallic strip 6. The strip is adapted to vary the degree of opening of the valve to control only the exit of flue gases from a chamber common to all three branches to the flue.
Patent GB-489128-A (GB)
Title: Improvements in construction of seats or carriers
IPC: A47D1/10
Filed: 1937-05-05
Abstract: 489,128. Seats; brackets or supports. RENN, F. W. May 5, 1937, No. 12818. [Classes 52 (ii) and 52 (v)] A miniature seat or carrier adapted to be hung on the back of an ordinary seat has two or more hooks 10, 11, Fig. 1, hinged upon a common pivot so that the pair of hooks suited to the thickness of the seat back may be used and the remaining hooks folded. The seat comprises a frame 1, to which are hinged side arms 4 carrying at their outer ends links 5, with a cross-bar 6 at the ends of the links. The frame is upholstered, and carries a seat (not shown). The hooks 10, 11 are pivoted to brackets 8 which can be located in different positions by screws engaging one of a series of holes 7. For use where the seat back is sloped, the frame 1, Fig. 3, may be provided with a folding strut 15 at the rear, the strut being supported by links 16 detachably connected to the frame 1.
Patent GB-1021073-A (GB)
Title: Aerosol dispenser button
IPC: B65D83/16
Filed: 1963-04-01
Abstract: 1,021,073. Spray - producers. SCOVILL MANUFACTURING CO. April 1, 1963, No. 12822/63. Heading B2F. [Also in Division Fl] A method of forming an aerosol dispenser button 13 comprising the steps of sintering into a cylindrical socket 17 in a body member 14 a concavo-convex disc 22 having a cylindrical central orifice and a cylindrical peripheral wall, then flattening said disc to transform the walls of the orifice and the periphery into tapered walls and enclosing said disc in situ by causing the resulting tapered peripheral wall to bite into the cylindrical wall of the socket. The contiguous faces of the disc and the base of the socket form a whirl chamber.
Patent GB-707906-A (GB)
Title: Improvements in or relating to foam inhibitors and liquids containing the same
IPC: C10M171/00
Filed: 1951-05-31
Abstract: A foam inhibitor comprises a liquid organo-silicon oxide condensation product and a silane derivative having the general formula <FORM:0707906/III/1> where X is R or OR, and R similar or dissimilar organic radicals such as alkyl, aryl, alkaryl, aralkyl and heterocyclic groups. Suitable organo-silicon oxide condensation products are the silicones, e.g. dimethyl, methyl phenyl, ethyl butyl, methyl cyclohexyl, dicyclohexyl, diphenyl, hydroxyphenyl methyl, phenyl propyl, phenyl isopropyl, tolyl butyl, and tolyl amyl silicones, and polymers of methyl and ethyl orthosilicates; when the condensation product contains an aromatic hydrocarbon group, substituent radicals, such as halogen, NO2, NH2, SO3H, SH, phosphite or phosphate, may be present.  Examples of silane derivatives are silicon tetramethyl, silicon tetraethyl, silicon tetraphenyl, silicon tetrabenzyl, silicon tetrapropyl, tripropylallylsilane, trimethylsilane, triphenylsilane, triethylsilane, tri-i-butylsilane, tri-i-amylsilane, trimethylchlorosilane, tribenzylchlorosilane, triethylbromosilane, triphenylbromosilane, triethylfluorosilane, tribenzylfluorosilane, benzylethylpropylchlorosilane, dimethyl-and diphenyldibromosilane, methyltrichlorosilane, amyltriethoxysilane monomethylo - triethoxysilane, diisopropyldiethoxysilane di-n-butyl-diethoxysilane, triamylethoxysilane, tri-2-ethylhexyl - ethoxysilane, and monolauryl - triethoxysilane.  The two ingredients of the foam inhibitor may be mixed with a high-boiling naphtha such as kerosene, and then added to the liquid liable to foam; a finely-divided siliceous material, e.g. silica, may also be included. The inhibitor may be added to special-purpose lubricating oils, e.g. industrial gear lubricants, refrigerator oils, and rock-drill lubricants, to hydraulic transmission oils (see Group XXIX), antifreeze liquids (see Group XIII), gasoline, kerosine, cleaning fluids, turbine oils, latex, resins, paints, perfumes, synthetic oils, vegetable oils and fats, animal oils and fats, and cutting oils containing emulsifying agents and diluted with water.  A lubricating oil for Diesel engines also includes basic barium sulphonate, barium dithiophosphate, and a sulphurized terpene product.  The foam inhibitor may also be used in processes involving distillation, filtration, solvent extraction &c.  Specification 626,515 and U.S.A. Specifications 2,375,007, 2,406,671, 2,416,503, and 2,416,504 are referred to.
Patent GB-118682-A (GB)
Title: Improvements relating to Match Holders.
Inventor: NORTON DOWNES ELLAND
IPC: A24F29/00
Filed: 1917-09-07
Abstract: 118,682. Norton, D. E. Sept. 7, 1917. Boxes combined with igniting-appliances; matches, boxes specially designed for; match-box holders.-A holder for short-stemmed matches is attached to a chain f, which is secured to a spring clip h slipped over one end of the drawer g<1> of a match-box, or to an angle-plate, Fig. 2, with one part i<1> bearing against the skellet g and the other part i<2> bearing against the drawer g<1>; by this means the box may be suspended from the holder when a match is, being used.
Patent GB-644674-A (GB)
Title: Improvements in or relating to combustion chambers
IPC: F23R3/14
Filed: 1948-05-11
Abstract: 644,674. Liquid-fuel burners. DARLING, R. F., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. May 11, 1948, No. 12894. [Class 75(i)] [Also in Group XII] In a burner for a gas turbine comprising an outer casing 1 and an inner casing or flame tube 3 which has its upstream end closed by a back plate 4 pierced with a number of axial air holes and has a plurality of peripheral apertures 8 to admit combustion air thereto and internal swirl vanes 6 opposite the point of maximum combustion intensity, means 9 are provided to control the total quantity of combustion air. The back plate 4 is attached to a cylinder 5 on the outside of which are mounted the swirl vanes 6 which may extend over the whole length of the cylinder to act as cooling fins. The outlet of the vanes is arranged to be at the point where the combustion is most intense. The flame tube 3 is extended rearwardly past the swirl vanes and provided with slots 8 which may be covered or uncovered by the lantern ring 9. A rotatable conical plate 10 controls the air flow through the axial holes. Vanes 2 direct the air uniformly around the combustion chamber. In a modification, the plate 10 is omitted and the back plate covered by a fixed baffle to cause the whole of the combustion air to flow over the back plate. In this arrangement, the back plate may have cooling fins welded to it. The back plate and the flame tube may be lined with refractory material. Specification 619,353, [Group XII], is referred to.
Patent GB-691317-A (GB)
Title: Multiplate clutches
Inventor: HALLEWELL GEORGE
IPC: F16D13/69
Filed: 1950-05-23
Abstract: 691,317. Friction clutches. BLACKSTONE & CO., Ltd. May 9, 1951 [May 23, 1950], No. 12911/50. Class 80 (ii). In a multiplate friction clutch, in which coaxial outer and inner members are splined to receive a plurality of teeth on the outer and inner peripheries of (e.g., phosphor bronze) friction discs 1, 2, certain teeth only spaced apart around the outer periphery of each disc 1 are bent in opposite directions so as to engage corresponding teeth on the adjacent discs 1, and thus tend to produce disengagement of the clutch. Radial slots are cut into the discs on each side of the bent teeth, which are thereby given the form of tongues. The outer parts of the teeth are milled down to a reduced thickness, before being bent over towards their plane sides. As a modification, the bent teeth are provided around the inner peripheries only of the friction discs 2.