baber/WOPTO huggingface dataset:
Patent GB-335040-A (GB)
Title: Improvements in or relating to supporting arms for electrical pick-ups
IPC: G11B3/20
Filed: 1929-09-02
Abstract: 335,040. Limit Engineering Co., Ltd., and Collins, N. Sept. 2, 1929. Pick-ups, supporting in machines.-The supporting arm for an electric pick-up is constructed so that the pressure of the needle upon the record may be adjusted and so that the needle may be accurately aligned with the record groove irrespective of the position at which the arm is pivoted. A base-plate 1, provided with lugs 2, is screwed to the motor board through holes 3, A spindle 4 is screw-threaded in a boss 5 in the base-plate 1, white at its upper end the spindle 4 is formed with the screw-threaded axial bore for the reception of a locking screw 6. Upon the spindle 4 a housing 7 is rotatably mounted, the bottom of which is fitted with a circular flanged plate 9. The plate 9 is provided with a transverse bridge-piece 10 formed with a boss 11 drilled to receive the spindle 4 which also extends through a hole in the top 8 of the housing 7 so that by means of a locking screw 6 the housing 7 is held in position upon the spindle 4. The top of the supporting arm is cut away at 15 and the side walls 16 have their rear extremities offset inwardly and fitted with screw-threaded bushes 17 for engagement with screvpivots 18 which engage with screw-threaded bushes 19 in the side walls of the housing 7. One end of a helical spring 21 is engaged through a hole 20 in the bottom wall 19a of the supporting arm and the other end is fixed to a nut 22 which engages with an adjusting screw 23 passing through the top 8 of the housing 7 and provided with a milled knob 24. The nut 22 is fitted with a laterally extending forked plate 25 engaging with the spindle 4 to hold the nut 22 from rotation, so that the tension of the spring 21 can be adjusted by rotation of the screw 23. The outer portion 26 of the main part of the arm is split and fitted with a clamping stirrup 27 to grip the tubular telescopic extension 29. This extension is made in halves 29, 29a which at their outer ends are formed with cup-like extensions 30 to provide spherical seatings for a spherical head 31 on the angularly-adjustable extension 32 carrying the pick-up. A clamping bolt 38 serves to grip the head 31 to maintain the extension 32 firmly in the position to which it is set. The conductors from the pick-up are led through a hole 29b and thence through the housing 7 and through a semicircular hole in the base-plate 1 to the amplifier.
Patent GB-1406283-A (GB)
Title: Fluorocarbon polymer compositions
IPC: C09D127/18
Filed: 1972-06-08
Abstract: 1406283 Coating primed Al with PTFE IMPERIAL CHEMICAL INDUSTRIES LTD 24 July 1972 [27 July 1971 15 Nov 1971 8 June 1972] 26801/72 33471/72 and 33472/72 Divided out of 1378288 Addition to 1378288 Heading B2E [Also in Division C3] A primer, comprising an aqueous dispersion of polytetrafluoroethylene and the reaction product of Al 2 (OH) 5 Cl.2H 2 O with or the phosphoric acid and optionally hydrochloric acid (in which the atomic ratio of Al:P is 1:X, X being <0.5), is sprayed onto a grit-blasted aluminium plaque, the coating is dried and baked, a coating of an aqueous dispersion of polytetrafluoroethylene is sprayed over the primer and dried, and the coating is then heated to sinter the polymer.
Patent GB-730407-A (GB)
Title: Improvements relating to hand tools
Inventor: PARDOE ALBERT EDWARD ALPHONSO
IPC: B25G3/02
Filed: 1952-10-27
Abstract: 730,407. Handle fixings. HUNT & SONS, THE BRADES, Ltd., W. Dec. 21, 1953 [Oct. 27, 1952], No. 26869/52. Class 61. In a tool having an operating head which is welded to langet socket parts 6, the langets are formed from strips of metal of uniform thickness, the end to be welded being folded back upon itself as at 8 to form a double or treble thickness of metal. The strips are subsequently pressed to arcuate cross-section. A pair of langets may be formed from a single blank, the combined pair having a substantially cylindrical end. The Provisional Specification discloses also a strip having a folded end of fourfold thickness the extremity being folded back to a point beyond the first backward fold.
Patent GB-925054-A (GB)
Title: Improvements in or relating to the adjustment of magnetic transducing assemblies
Inventor: COLLINS BERNARD PATRICK
IPC: G11B33/10
Filed: 1958-08-21
Abstract: 925,054. Magnetic recording &c. heads; adjusting. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 12, 1959 [Aug. 21, 1958], No. 26899/58. Class 40 (2). A pneumatic position gauge is used to space accurately an interchangeable transducing head from the surface of a magnetic store, the gauge being calibrated by adjusting the position of the nozzle 17, Fig. 3, relative to the head in which the tube 16 is fixedly mounted so that a standard value of P<SP>1</SP>/P (the pressures in two sections of the tube 1, Fig. 1) is obtained with the tip of the head in contact with the drum surface. Calibration may be effected against the drum surface, or the head may be mounted in a jig, Figs. 5-7 (not shown), and brought into contact with a dummy drum surface. After calibration the head is mounted on a bar 14 and withdrawn from the drum by a nut 10 on a screw 9 to decrease P<SP>1</SP>/P by a given amount. This arrangement compensates for lack of precision in the manufacture of the nozzles. The cylindrical head is split into two parts in a plane parallel to its axis and is tightened in its mounting by a wedge. Modifications described include a threaded head in a threaded hole in the bar, and a withdrawable tube 16 for use when calibrating against the drum surface itself.
Patent GB-1260380-A (GB)
Title: Penicillanic acids
Inventor: CLARK DONALD EUGENE
IPC: C07D499/00
Filed: 1969-05-28
Abstract: 1,260,380. Dehydrated 6 - (1 - aminocycloalkylcarboxamido) penicillanic acids. AMERICAN HOME PRODUCTS CORP. 28 May, 1969, No. 26900/69. Heading C2A. Partially dehydrated and anhydrous 6-(1-  aminocycloalkylcarboxamido) penicillanic acids of formula wherein n is 2 or 3 and m has a value of from ¢ to zero, are prepared by contacting a hydrated corresponding penicillanic acid with methanol which may be admixed with up to 75% by volume of water, at a temperature of -10‹ C. to the boiling point of the methanol when methanol alone is used, or from -10‹ C. to about 35‹ C. when water is present, and then separating and drying the insoluble crystals. The crystals are preferably dried at elevated temperature and/or under vacuum. The methanol treatment is preferably performed in the presence of a base, e.g. sodium acetate, citrate, tartrate, or bicarbonate, potassium maleate, succinate or bicarbonate, ammonia, pyridine or aniline, and the mixture may be treated with absorptive charcoal and filtered prior to crystallization of the anhydrous penicillanic acid. Before drying the crystals are a methanolate of the penicillanic acid.  Reference has been directed by the Comptroller to Specifications 977,609 and 1,169,077.
Patent GB-224368-A (GB)
Title: Improvements in the construction of gas and air passages for regenerative furnaces and in bricks therefor
IPC: F28F21/04
Filed: 1923-10-29
Abstract: 224,368. Masters, E., and Gibbons Bros., Ltd. Oct. 29, 1923. Bricks, special shapes of.-Tubular bricks employed for the construction of gas or air passages in regenerative furnaces have openings 1, Fig. 1, in one face and openings 2 in the opposite face, the openings in one face being opposite the bridge-like connections 3 of the other face. In a modification, single openings 5, Fig. 4, are made in opposite walls near the ends of the brick. In another modification, two types of bricks are assembled to form the passages shown in Fig. 6. One type 7 has an opening 8 in the centre of one face and the other type 9 has short openings 10 in opposite faces at the ends of the brick. Specification 6847/12 is referred to.
Patent GB-1146733-A (GB)
Title: Improvements in or relating to workholders
IPC: B25B5/08
Filed: 1966-06-16
Abstract: 1,146,733. Machine tool details. A. GENELONI and L. BARTOLETTI. 16 June, 1966 [16 June, 1965], No. 27021/66. Heading B3B. A work gripping device has two members 2, 5 adapted to be bolted to a work-table, the members having complementary inclined curved surfaces 4, 6 which effect displacement of the member 5 into its workpiece gripping position as that member is tightened down. The surfaces 4, 6 are of part circular section in a transverse plane and preferably of truncated cone shape, which allows the jaw member 5 to align itself with the edge of the workpiece being clamped. The jaw member 5 has ribs 7 on its gripping face which slope downwards slightly towards the centre of the member.
Patent GB-921803-A (GB)
Title: Improvements in or relating to carbonating polymers
IPC: C08F8/00
Filed: 1961-07-26
Abstract: A process for carbonating a polymer comprises contacting dry gaseous carbon dioxide, under pressure with a solution of a polymer prepared by contacting a monomer with an organo alkali metal compound, the polymer having at least one terminal alkali metal atom, under conditions of turbulent flow whereby instantaneous mixing of the carbon dioxide and the solution occurs, the quantity of carbon dioxide present being in substantial excess of the amount required for stoichiometric carbonation of the polymer.  Specified monomers are butadiene, isoprene, piperylene, methylpentadiene, phenylbutadiene, 3-4-dimethylhexadiene, 4-5-diethyloctadiene, chloroprene, fluoroprene, styrene, vinyltoluene, p-methoxystyrene, vinylnaphthalene, 2- or 3-, or 4-pyridine, 2-ethyl or -methyl-5-vinylpyridine, 3-5-diethyl-4-vinylpyridine, methyl or ethyl acrylate or methacrylate, propyl or butyl methacrylate, ethyl ethacrylate, methyl vinyl ether, vinyl chloride, vinylidene chloride, vinyl furan, vinylcarbazole, and vinyl acetylene-copolymers may also be used.  Specified catalysts include n-butyl lithium, 1-5-dipotassiopentane, 1-4-disodio-2-butene, disodionaphthalene, dilithioanthracene, 1-4-dilithiocyclohexane, dilithiomethane, 1-4-dicestooctane and 1-3-dilithio-4-ethylbenzene. The carbonated polymer may then be treated to remove the alkali metal atoms from the polymer and leave carboxy end groups, e.g. by treatment with an acid such as anhydrous hydrogen chloride.  Specifications 895,980 and 906,315 are referred to.
Patent GB-1058479-A (GB)
Title: Water-soluble organic reactive dyestuffs and process for their manufacture
IPC: C09B62/12
Filed: 1964-07-01
Abstract: Water-soluble reactive pyridazine dyes are provided which contain the group of formula <FORM:1058479/C4-C5/1> in which n is 0 or 1, A is methylene, ethylene, or vinylene and Hal is a chlorine or bromine atom, the pyridazine nucleus may be substituted by further chlorine or bromine, or alkyl, aralkyl or aryl radical.  The dyes are made by usual methods but especially by acylation of dyes containing an amino group, many types of dyes are specified, and give red-yellow-green-black colours on cellulosic materials. missing page 100
Patent GB-713241-A (GB)
Title: Apparatus for launching rocket-bombs from aircraft
IPC: B64D1/04
Filed: 1949-10-24
Abstract: 713,241. Rocket magazines. ROBERT, R. A. Oct. 24, 1949 [Oct. 29, 1948], No. 27232/49. Classes 9(1) and 9(2) As shown in Fig. 2 rockets are suspended from one another, the top rockets being suspended from tubes 63, 63<SP>1</SP>, which, in turn, are connected tc girder members 51 and 51<SP>1</SP> via the tube pieces 52, 52<SP>1</SP>. Bridge members 50 and 50<SP>1</SP> join the girders and are mounted on the threaded shafts 36 and 37, Fig. 4, driven by the motor 48, Fig. 14, via the bevelled wheels 45 and 46. Collars 87 and 98 carry the suspension means, the former also carrying studs which run in the vertical guide rails 105, 106, 105<SP>1</SP> and 106<SP>1</SP>. On pressing the trigger 145, Fig. 14, to close the switch 140 the motor 48 drives the rockets downwards in the magazine, and at the same time fires the resistor 116 in the rocket 88, by means of the contacts 122 and 123 in the outlet of the magazine touching the contact fingers e.g. 110 carried on the collar 98 of the rocket 88<SP>2</SP>, the finger 110 having an inserted plug 112. While the switch 140 is closed the rockets will be fired in succession via the rocket immediately above. For the top rockets electrical contact is made via the arms 1081 and 1091. To release the whole row of rockets in an inert condition together with the tubes 63 and 63<SP>1</SP>, the button 133 is pressed, thus breaking the supply to the motor 48 and the contacts 122, but energizing the electromagnet 147 and withdrawing the hook 148, or, as in Fig. 5, operating the crank pin 78 to withdraw the hook 70. The rear ends of the rockets may carry collapsible fins which only open as the rocket reaches its firing position. An added means of suspension may be provided in the form of flat hooks. Specification 713,297 is referred to.
Patent GB-1215175-A (GB)
Title: Phonograph pickup
Inventor: MILLER MICHAEL EVANS
IPC: G11B3/04
Filed: 1968-06-07
Abstract: 1,215,175. Gramophone pick-ups. RCA CORPORATION. 7 June, 1968 [7 June, 1967], No. 27244/68. Heading H4J. A gramophone pick-up has an elongate stylus arm 28 supporting a stylus at one end and a resilient member 30 supporting the stylus arm 28 at the other end. A coupling member 20 couples a transducer element 14, to the stylus arm 28 and engages the stylus arm 28 at a position such that a portion of the coupling member 20 is contiguous with a portion of the resilient member 30. Preferably the pick-up is stereophonic, using two piezoeletric elements 14, 16 and the coupling member 20 abuts the resilient member 30. A plastics holder 26 seated in a recess 22 may be rotated through 180 degrees by an arm 32 having projections for engagement in recesses 24, for use of one or other of two styli. The holder 26 has a dowel (34), Fig. 2 (not shown), received in a rear bore (36) of the resilient member 30. The central non-bored portion of member 30 provides a pivot centre for the stylus arm 28. Member 30 also provides damping of the rear end of the stylus arm 28 as well as damping of mechanical resonances appearing during use. The member 26 has opposite flats 40 engaged by a leaf spring 54.
Patent GB-377019-A (GB)
Title: Improvements in or relating to friction hinges
IPC: E05D11/08
Filed: 1931-09-30
Abstract: 377,019. Friction hinges. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(McKinney Manufacturing Co. ; Liverpool Street, Pittsburg, U.S.A.) Sept. 30, 1931, No. 27263. [Class 65 (ii).] A nut 14, which co-operates with a hinge-pin 9 to press together knuckles 5, 7 of the hinge leaves 4, 6, is housed in a bore hole in a knuckle 8. Friction washers 12, 16, of which the latter fits on a flattened part 19 of the pin 9, are inserted between the knuckles. Relative rotation of the leaf 6 and the hinge-pin 9 is prevented by a pin 10 which enters slots 11 in the knuckle 7. A square shank 15 on the nut 14 is concealed by a lock-nut 17.
Patent GB-1347273-A (GB)
Title: Automatic control system for a movable body
IPC: B66B1/50
Filed: 1971-04-19
Abstract: 1347273 Controlling lift cages S RICHMON 19 April 1971 [13 March 1970] 27278/71 Heading B8L [Also in Division H1] In an automatic control system for stopping a lift or the like at a plurality of selected stations a rotary switch 32, Fig. 1, in a box 10 attached to the lift cage (2), Fig. 1a (not shown) has a multiplicity of operating arms 34 corresponding to the number of stations and is rotated stepwise by linearly arranged bullet-shaped cams 18A or 18B mounted on a wire 12 at positions corresponding to each station. In the particular example described the arms 34 comprise pairs of parallel radially extending spring strips 26 having upper and lower pointed projections 27 engageable respectively by the upper flat end 21 of a cam 18A when the lift moves downwardly and by the under-side of a cam 18B when the lift moves upwardly. The cams 18A and 18B have conical pointed ends so that they force the strips 26 apart and pass the switch 32 without rotating it when the lift moves upwards or downwards respectively, whereby only one of the cams 18A or 18B stops the switch 32 when the lift is moving in a given direction. The switch is stated to operate through a complete step by the action of an internal spring whereby the cams 18A or 18B are normally required to move the switch 34 through a part only of its full angle of movement. Further projections (68), Fig. 5 (not shown) are however provided on the ends of the strips 26 for engagement by the flat ends of the cams, 18 in the event of failure of the switch spring. The projections 27 and (68) are spaced apart to ease the passage of the pointed ends of the cams 18. A guide 36 is provided on the wall of the box 10 between the ends of the strips 26 to retain the wire 12 and cams 18 in position. The box 10 further contains an additional pair of up and down " station " positioning switches 38, 40 operable by a second set of cams 20 mounted on a wire 13. A lift control system, Fig. 2 (not shown), is described in which initial rotation of the switch 32 signals the approach to the required station as determined by selector push buttons (55) to start slowing down the lift motor (59) while the cam 20 operate the switches 38, 40 to cause the lift to continue moving respectively upwardly or downwardly until the cam 20 is positioned between the switches 38, 40 to determine the exact position at each station. A further end stop gear and rack and pinion mechanism is described with reference to Fig. 9 (not shown) which operates to rotate the switch 32 when the lift reaches the limits of its up or down travel, and the switch 32 is incorrectly positioned, as may result from a failure of one of the cams 18 to step the switch 32 or due to an incorrect initial setting during maintenance. Alternative arrangements are referred to in which the cams or switch are moved relatively to one another at speeds proportional to the movement of the lift &c. and in which the cams 20 are arranged between the cams 18A, 18B on the same wire.
Patent GB-1502500-A (GB)
Title: Fluids solids contacting
IPC: B01J8/44
Filed: 1975-06-27
Abstract: 1502500 Fluidised bed grid EXXON RESEARCH & ENG CO 27 June 1975 27321/75 Heading B1F A grid plate for supporting a fluidised bed has nozzles, e.g. 26 Fig. 4, for each aperture, the nozzles having walls diverging at an angle not greater than 30‹ as measured from the vertical axis of the nozzle, the effect being that entrained solid passing with the fluidising gas through the nozzles will pass centrally of the nozzle and avoid sticking and fouling of the grid. The nozzle may alternatively be as shown in Fig. 5.
Patent GB-467003-A (GB)
Title: Improvements relating to hydraulic lifting means for adjustable chairs
IPC: A61G15/02
Filed: 1936-10-08
Abstract: 467,003. Motor-actuated hydraulic jacks. CORNO, J. Oct. 8, 1936, No. 27331. Convention date, Feb. 19. [Class 78 (iii)] [Also in Group XIV] In a chair having hydraulic lifting means for the seat liquid is delivered to the cylinder of the lifting ram from a gear pump 6 coupled by a coil spring 5 to an electric motor 1. arranged in the seat base with its shaft vertical, the spring 5 being so coiled as to urge the liquid away from the motor. The latter and a relief valve 33 are controlled by two pairs of symmetrical pedals 13, 14 which are interlinked so that depression of one pedal also depresses its follow in the other pair and simultaneously raises the two remaining pedals. The pedal linkage can be set to remain in the lifting, lowering, or stopped positions and a safety device opens the motor circuit when the seat is near its maximum height by tilting by means of links 38, 40 a mercurytube rocking switch 19 carried by the lifting pedal, and should the motor fail to stop the relief valve is then opened.
Patent GB-625130-A (GB)
Title: Process for producing cellulose
IPC: D21C3/22
Filed: 1946-09-11
Abstract: Bleachable pulp is obtained from ligno-cellulosic material by a single step alkaline pressure cooking process wherein the full-pressure cooking is carried out at or about the temperature at which the encrustants of the material react with the cooking liquor with the maximum reaction velocity and the time of this full-pressure cooking is restricted to 20 minutes or less.  The temperature of maximum reaction velocity differs for different classes of ligno-cellulosic materials.  In the case of pine wood it is approximately 200 DEG  C.  For wheat straw it is about 186 DEG  C.; corn stalks 185 DEG  C.; hemp tow 183 DEG  C.; flax tow 182 DEG  C.; bagasse 173 DEG  C.; phragmites communis, arundo donax 172 DEG  C.; bamboo 170 DEG  C. In practice, temperatures up to 5 DEG  C. above or below the temperature of maximum reaction velocity may be used.  The alkaline treatment liquor preferably contains the equivalent of 17-22 per cent of active Na2O based on the weight of air dry raw material. To avoid any substantial disintegration of the material during the time taken to heat up the contents of the cooker to the desired reaction temperature, this period is restricted to about 50 minutes or less.  In an example, chips of Jack pine are treated with a liquor containing caustic soda, sodium sulphide, and sodium carbonate.  The temperature is raised within 47 minutes to 199 DEG  C. and maintained at this level for 18 minutes, whereafter the relief valve of the cooker is opened and the contents are discharged.
Patent GB-225350-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1923-11-01
Abstract: 225,350. Avery, Ltd., W. & T., and Timson, W. Nov. 1, 1923. Counter scales and the like; pendulum-weight apparatus. - In a semi-automatic scale of the kind wherein the two scale pans are mounted on crosses or spiders at opposite ends of the weigh beam and the whole or part of the load is indicated by a pendulously-controlled indicator, one of the crosses or spiders 7 has an integral extension 7<a> directed towards the centre of the scale and having a point connection to a link 10 connected to the pendulum 20 of the indicating mechanism.
Patent GB-1384567-A (GB)
Title: Fibre-optical viewing devices
IPC: G02F1/1335
Filed: 1972-06-12
Abstract: 1384567 Light guides SOVAL Ltd 11 June 1973 [12 June 1972] 27413/72 Heading G2J In an optical viewing device comprising a fibre optics bundle (1) and a light source (7) mounted to one side of the bundle, a lateral illumination inlet (8) in the bundle is provided by causing contacting portions of some outermost fibres in the bundle to coalesce by simultaneously heating and slightly stretching them. The device may comprise three 4-channel glass fibre optics units 10, the disposition of the bundles in each unit being as indicated at 11, to provide scrambling, or the bundles may be parallel, see Fig. 5 (not shown). A baffle (17), a solid transparent light guide block (18), Fig. 8 (not shown) and a reflective foil (15) Fig. 2 (not shown) may be provided.