baber/WOPTO huggingface dataset:
Patent GB-1015383-A (GB)
Title: Improvements in or relating to easily openable bags
IPC: B65D75/58
Filed: 1964-08-26
Abstract: 1,015,383. Easily openable bag. ARENCO A.B. Aug. 26, 1964 [Oct. 3, 1963], No. 34921/64. Heading B8K. A strip of material 4 (Fig. 1, not shown) having a tear line 7, is securely attached to a bag 1 so that when the strip 4 is torn along the tear line 7 the bag 1 also tears along a similar line. In the embodiment described a piece of tearable material (Fig. 2, not shown), e.g. card, paper, plastics, or plastics coated paper, is provided with tear lines 7a, 7b and notches 8 and 9. The strip is folded about the line 11 and welded or gummed to both faces of the bag 1 at 5 and 6, so that the notches coincide at 9 and the tear lines coincide at 7. After the portion 2 has been torn away, the remaining portion of the strip 5 serves as a stiffening for the opening of the bag. The tear lines and notches of Fig. 2 may be replaced by a circular tear line having the line 11 as a diameter. Alternatively a V-shaped strip may be used having a score line down each of its arms. The bag may be used as a liner in a box.
Patent GB-1015326-A (GB)
Title: Improved aircraft take-off monitor
IPC: G05D1/00
Filed: 1962-09-14
Abstract: 1,015,326. Electric analogue integrator. SPERRY RAND CORPORATION. Sept. 14, 1962 [Sept. 14, 1961], No. 35090/62. Heading G4G. [Also in Division G1] In an integrator, for use in an aircraft takeoff monitor (see Division G1), when contacts 90, 91 are in their lower positions an aircraft acceleration signal is fed through potentiometer 85 and amplifier 80 to a motor-tachogenerator arrangement providing feedback to amplifier 80. The position of the motor shaft is registered by the slider of potentiometer 84 connected to a constant D.C. supply 86 to provide a signal indicative of airspeed. The slider of potentiometer 85 is also coupled to the motor shaft so that the acceleration signal is modified in dependence upon the airspeed. Potentiometer 84 is discontinuous so that no signal is produced until the motor shaft rotates to a position equivalent to an airspeed of about 80 knots. The integrator resets to zero when contacts 90, 91 are in the upper position shown.
Patent GB-418054-A (GB)
Title: Improvements in domestic refrigerators and refrigerant evaporators therefor
IPC: F25D11/02
Filed: 1933-12-14
Abstract: 418,054. Refrigerators. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. Dec. 14, 1933, No. 35155. Convention date, Dec. 14, 1932. [Class 29.] A domestic refrigerator comprises a storage chamber c cooled by an independent heatinsulated evaporator unit adapted to be slid over the chamber, e.g. after the latter has been enamelled. The evaporator consists of a shell b to which is secured a corrugated sleeve e forming a helical duct connected to refrigerant inlet and outlet pipes g, h respectively. The inlet pipe is connected in series with the helical refrigerant passage p of an ice-making unit m, said passage being connected to the condenser t which is preferably supported on the back of the refrigerator. The space between the storage chamber and the shell b is filled with brine. In a modification, the chamber c, Fig. 2, is cooled by an evaporator unit comprising inner and outer sleeves, the space between which is filled with brine, a corrugated sleeve x being secured to the inner sleeve to form a refrigerant duct f.
Patent GB-1283225-A (GB)
Title: Derivatives of cyclopropane carboxylic acid and process for their preparation
IPC: C07C61/35
Filed: 1969-07-14
Abstract: 1283225 Hemi-acylals of cis-3,3-dimethyl-2- formyl - cyclopropane - 1 - carboxylic acid ROUSSEL UCLAF 14 July 1969 [12 July 1968 (2)] 35377/69 Heading C2C Compounds of the formula - wherein R<SP>11</SP> represents hydrogen or a C 1-6  alkyl radical, and racemic mixtures thereof, may be obtained (a) by reacting a compound of the formula wherein R represents a C 1-6  alkyl radical, in a non-aqueous medium with a metal alkoxide to yield compounds of Formula I wherein R<SP>11</SP> is alkyl, (b) treating a compound of the formula with an acid, or (c) by hydrolysing a compound of Formula I wherein R<SP>11</SP> is C 1-6  alkyl to give the compounds of Formula I wherein R<SP>11</SP> is hydrogen. Reaction (a) above is suitably effected by employing an alkalimetal methoxide/ methanol couple; the acid employed in reaction (b) above is preferably benzene- or p-toluene sulphonic acid, optionally in the presence of a solvent such as benzene; the hydrolysis reaction (c) may be effected in a neutral medium comprising water and optionally a further solvent such as methanol, ethanol or dimethylformamide, in a weakly acidic aqueous medium containing acetic or hydrochloric acid, in a weakly basic aqueous medium containing sodium bicarbonate, or preferably in an aqueous medium containing dioxan or carbon dioxide.
Patent GB-330220-A (GB)
Title: Improvements in or relating to television apparatus and the like
IPC: H04N3/08
Filed: 1929-01-31
Abstract: 330,220. Baird, J. L., Television, Ltd., and Baird Television, Ltd. Jan. 31, 1929. Divided on 328,616 and addition to 291,127.. Television.-A receiving screen contains a substance whose colour is changed under the influence of the signals, the change being subsequently reversed (so as to obliterate the picture) in readiness for the succeeding signals. Thus (a) a screen treated with gum guaiacum may be scanned (Fig. 1, not shown) with blue light, which darkens the gum, and then exposed to red light which obliterates the effect of the blue. This result may be achieved by means of a scanning disc similar to that described in the parent Specification. The scanning and obliterating light-sources may be arcs with blue and red colour-screens respectively, or a single lamp may be associated with a suitably arranged mirror and colour-screens, or the scanning apertures may be covered with blue screens while an obliterating aperture is covered with a red screen. (b) In the arrangement shown in Fig. 3, a screen 16 of paper treated with potassium ferrocyanide, or other " pole-finding " substance, is scanned by brushes 12 to which negative signal currents are applied so as to produce a change of colour by electrolytic action. The picture is periodically obliterated by the positive brush 14. Suitable circuit arrangements are described in the Specification (Fig. 2, not shown).
Patent GB-1235668-A (GB)
Title: Containers for two-part mixtures
Inventor: WILLIAMS MICHAEL JOHN
IPC: A61C5/66
Filed: 1967-08-03
Abstract: 1,235,668. Portable containers. AMALGAMATED DENTAL CO. Ltd. 31 May, 1968 [3 Aug., 1967], No. 35638/67. Heading B8D. A container for a two-components of a mixture comprises a tubular body 3 closed at one end and housing a first (e.g. solid) component 6 and a tubular cap 1 which is slidably fitted over the open end of the body and houses a second, liquid component 7. The body 3 is sealed at its open end by a plug 4 which has a capillary bore 9 through which the liquid can be discharged into the body 3 by axial compression of the container. A hole may be provided in the body 3 for the expulsion of air during the latter operation. A rib 5 on the body 3 prevents axial compression of the container until it is aligned with a slot 2 in the cap.
Patent GB-1407679-A (GB)
Title: Measurements of deflections of retaining structures
IPC: E02D33/00
Filed: 1972-07-31
Abstract: 1407679 Measuring deflections of soil or structures in situ SOIL MECHANICS Ltd 29 Oct 1973 [31 July 1972] 35731/72 Heading G1S A vertical tube 1, Fig. 1, of about 18 metres in length is driven into soil or supported and cast within a pile casing to be cast in situ, Fig. 4 (not shown), and is provided with graduated brass pins 6, Fig. 2, placed longitudinally about every 2“ metres and laterally offset along its length. Lamps 7 and reflectors 8 are provided to illuminate the pins and a conduit 12 is attached for running electric supply cables and to act as an inlet for nitrogen gas to prevent condensation and pressurize the tube. The pins 6 may be individually lit, and a translucent screen 9 may be graduated. In operation a telescope (not shown), is mounted vertically above the tube and then sighted on various pins 6 whose depth are known. The vertical angular deviation is then determined and from this deflections of the tube 1 at various depths ascertained.
Patent GB-343189-A (GB)
IPC: D03D45/20
Filed: 1929-11-22
Abstract: 343,189. Automatically changing bobbins in loom shuttles. CROMPTON & KNOWLES LOOM WORKS, Worcester, Massachusetts, U.S.A. Nov. 22, 1929, No. 35774. Convention date, Nov. 22, 1928. [Class 142 (iii).] The tip of the bobbin in the transfer position is supported by two flexible cylindrical supports 24, 27 projecting downwardly and obliquely and comprising closely coiled wires fitting in oblique holes in holders 22, 20, which are angularly and longitudinally adjustable on the tie rods 15 of the magazine. The supports 24, 27 engage the conical end of a bobbin moving to transfer position and thereby position it longitudinally. The magazine may comprise front and rear plates furnished with slots 13 to form guideways for the bobbins, and there may be a central device at the bottom of each magazine compartment. The supports may bend at the lower ends and be displaced forwardly (or rearwardly) by a misplaced bobbin as shown in Fig. 5.
Patent GB-363107-A (GB)
Title: Door check
IPC: E05C17/20
Filed: 1930-11-28
Abstract: 363,107. Checks for vehicle doors. MORRIS COMMERCIAL CARS, Ltd., HAMILL, W. W., MEAD, F. W., and DAVIS, W. A., Foundry Lane Works, Soho, Birmingham. Nov. 28, 1930, No. 35803. [Class 65 (i).] A frictional check, particularly for the rear doors of motor vans, comprises a bar d pivoted at one end to the door and passing through a slot in a member f on the vehicle body. The part of the bar near its hinge passes through the slot freely, but the outer part j of the bar is twisted so as to bind in the slot and resist the opening of the door above a certain amount. The free end of the bar is bent downwards to form a stop. The bar is preferably arranged below the floor of the vehicle, passing through the skirt of the body where one is provided, as shown.
Patent GB-1464903-A (GB)
Title: Growing crystals
IPC: C30B23/00
Filed: 1974-08-15
Abstract: 1464903 Growing crystals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 15 Aug 1974 [18 Aug 1973] 35982/ 74 Heading B1S A method of growing crystals in a crystallisation vessel comprises the periodic deposition of the crystal material from a transporting phase of the crystal material present in the vessel and the partial retransfer of crystal material deposited at the site of the crystal growth to the transporting phase which is separated from the deposition site, the periods of deposition and retransfer being such that (a) a net amount of material is deposited at the site of crystal growth and (b) the formation of parasitic seeds is suppressed. The quantity of the crystal material deposited on a perfect seed crystal is larger in any period than the quantity of the crystal material retransferred to the transporting phase so long as the grown crystal is perfect; and the quantity of the crystal material retransferred to the transporting phase is larger in any period than the quantity of deposited crystal material as soon as and as long as the crystal to be grown shows structural defects. As shown in Fig. I at least two defined regions of the circumference of the crystallisation vessel 1 are heated simultaneously and the temperature of the circumference is increased and decreased periodically relative to the temperature of the centre by rotation through tube 13 of the vessel, the defined hot regions being formed by a fixed wire loop heater 6 and thermal losses being overcome by means of heater 9. When the crystallisation vessel 1 is rotated in the temperature gradient which extends at right angles to the axis of the vessel the starting crystal material 2 will pass alternately through an undersaturated and a supersaturated region and material transport takes place, e.g. sublimation, when the average valve of the temperature as a function of time from all the circumferential points is different from that of the temperature of the centre. The growth of large single crystals of HgI 2  is exemplified.
Patent GB-389057-A (GB)
Title: Improvements in or relating to projector lamps and the like
IPC: F21V7/04
Filed: 1932-12-19
Abstract: 389,057. Light-projectors. ANCIENS ETABLISSEMENTS SAUTTER-HARLE, 16, Avenue de Suffren, Paris. Dec. 19, 1932, No. 35992. Convention date, Feb. 26. Addition to 309,908, [Class 75 (ii), Lamp chimneys &c.]. [Class 75 (iv).] In a light-projector having a reflector divided into parts which are so arranged that in one position they co-operate to form a complete reflector surface without gaps, said parts being capable of rotational adjustment about one or more axes passing through the focus of the complete reflector and the light source so as to produce any desired concentration of one or more beams in one or more directions, as described in the parent Specification, the light source comprises an electric incandescent lamp 5 having a filament 22 in the form of a substantially flat grid whose mean plane substantially coincides with the vertical plane of symmetry of the projector. The grid may be constituted by vertically disposed spirals, the innermost of which passes through the common focus of two half parabolic reflector parts 18, 19.
Patent GB-414574-A (GB)
Title: A catalytic process for the manufacture of nuclear substituted aromatic amines
Filed: 1933-12-21
Abstract: Nuclear-substituted aromatic amines are obtained by heating a primary amine with an aliphatic or cycloaliphatic alcohol or olefine in the presence of a non-metallic catalyst having no basic character.  A mixture of C-substituted and N-substituted amines is formed from which the former is separated.  The formation of the nuclear - substituted product is favoured by heating with exclusion of water and removal of any water formed.  The preferred catalyst is a hydrosilicate of large surface area and the reaction temperature may be 200--270 DEG  C.  Examples describe the production of (1) o-cyclohexyl aniline from aniline and cyclohexene; (2) p-methyl-o-cyclohexyl aniline from p-toluidine and cyclohexene; (3) cyclohexyl aniline from cyclohexanol and aniline; (4) butyl aniline from butyl alcohol and aniline; (5) a mixture of primary and secondary bases from m-toluidine and methyl-cyclohexene; (6) vic.-1-cyclohexyl-2-amino-3-methylbenzene from o-toluidine and cyclohexene.
Patent GB-1515296-A (GB)
Title: Rotor for centrifugal compressor or centripetal turbine
IPC: F01D5/04
Filed: 1975-08-11
Abstract: 1515296 Turbine or compressor bladed rotor NOEL PENNY TURBINES Ltd 11 Aug 1975 [16 Aug 1974] 36091/74 Headings F1C and FIT A bladed rotor for centrifugal compressors or centripetal turbines comprises a hub 1 and a body portion 2 formed with internal cavities 11 defined by portions 6 of the concave root face 3 and by side walls 5 formed, in effect, by internal extensions of the blades 4. The cavities may be openended or closed by individual plates or a single plate 7 snap-fitted at 8, or the plates may be welded. The hub and body may be made integrally, or the rotor or body may be formed from segments subsequently welded together.
Patent GB-1135077-A (GB)
Title: Tall column structure
IPC: E04H12/10
Filed: 1966-08-12
Abstract: 1,135,077. Lattice masts. GRANGER ASSOCIATES. 12 Aug., 1966 [16 Aug., 1965], No. 36267/66. Heading E1B. A metal lattice mast comprises a number of superposed sections interconnected by bolted or rivetted splice plates 7, each mast section comprising three equilaterally-positioned legs 6 interconnected by Warren bracing 10 of tubular or angle section. Each leg 6 may comprise a channel having a central web and equal-width 60-degree flanges. Alternatively each leg 6 may have any other cross-section (e.g. an ellipse) which is such that the maximum and minimum radii of gyrations about axes through its centre of gravity are in the ratio 2:1. The tower is braced at the top and intermediately, by guy ropes 17 attached to bars 12, the lower ends of the guys being connected through turnbuckles 18, and plates 19 to anchor rods 20.
Patent GB-173169-A (GB)
Title: Improved apparatus for stone dusting in mines
IPC: E21F5/10
Filed: 1920-12-29
Abstract: 173,169. Waters, M. M. Dec. 29, 1920. Dust distributor.-An apparatus for distributing stone dust in coal mines comprises a frame on which are mounted a hand-operated plunger pump 5, a moisture trap, and a dust distributor. From the pump air passes through a downwardlydirected pipe 11 into the moisture trap 4, the dried air leaving by an outlet 10 and so through a pipe 7 to the ejector nozzle 6 of the dust distributor 2. Condensed moisture is withdrawn from the trap 4 through a cock 13.
Patent GB-958174-A (GB)
Title: Cementitious material
Inventor: WHITE CONNIE PATRICIA
IPC: C04B28/02
Filed: 1962-09-26
Abstract: A cementitious mixture is obtained by mixing powdered slate with 1-15% of a pozzuolana, with 1-15%, relative to the slate and pozzuolana, of a fibrous hydrated magnesium silicate and with finely divided concentrated hydrochloric acid, followed by the addition of 20-50% of a setting material, and thereafter a further quantity of finely divided acid the total weight of acid not exceeding 12% of the final mixture.  Long lists are given of suitable pozzuolanas and setting material. Coarse slate may be used as an aggregate in the mix.
Patent GB-997093-A (GB)
Title: Improvements in and relating to polymeric bodies
Inventor: WARD JOHN CAMERON
IPC: D06M14/18
Filed: 1960-10-25
Abstract: The surface properties of a hydrocarbon polymer are modified by graft polymerization by a process which involves forming free radicals on the surface of the polymer by subjecting it to an electric discharge in a gas at a pressure of up to 1 mm. Hg, and subsequently contacting the polymer with a polymerizable substance and initiating graft polymerization by means of the free radicals on the surface of the polymer. Hydrocarbon polymers specified are polyethylene and polypropylene, which may be in the form of a fabric or a powder. Polymerizable substances specified are methacrylic acid, acrylonitrile, and vinyl pyridine.  The electric discharge may be supplied by a valve oscillator or a Tesla coil. After exposure to the discharge, the polymer may be contacted with the monomer immediately, or may be exposed to air to cause the formation of peroxide groups thereon. The examples describe grafting methacrylic acid on to polyethylene and polypropylene, and acrylonitrile on to polyethylene. The methacrylic acid-grafted products are dyeable with basic dyestuffs.
Patent GB-1118947-A (GB)
Title: Digital data processing system
IPC: G06F17/13
Filed: 1966-08-16
Abstract: 1,118,947. Digital electric computing. SCIENTIFIC DATA SYSTEMS Inc. 16 Aug., 1966 [16 Aug., 1965], No. 36673/66. Heading G4A. A digital electric computer is described for solving in real time equations of the type #x + Á#x + f(x) + g(t) = 0 given Á, f(o), g(o) and having provision for manual intervention in the operation by operation of a console keyboard (Fig. 2). The basic programme (Fig. 5) causes the values of the initial conditions, which have been entered on the keyboard to be loaded into allocated storage locations and, for instance converted from binary coded decimal numbers to floating point octal numbers, and for the initial condition x(o)=-x(o) -f(x(o)) + g(o) to be calculated. The results of the calculations can then be displayed on the keyboard. The programme then commences the iteration calculations, at Aoo and begins the rate 1 calculations. This involves integration using the " Euler ", " Runge-Kutta " or Adams- Bashforth approximations using preselected time increments at the end of each iteration, the time increment being set up on the console and entered into a counter which is then decremented by timing pulses to produce the required time interval #t and cause the next iteration to commence. In certain cases quantities such as Á may vary with time but not sufficiently to be updated during each iteration so, also on the console a quantity k#t is set up and at the end of this time a rate 2 calculation is commenced which causes the required values to be updated, the new values, as before, being set manually on the console. The rate 1 calculations are then continued with the updated values. The programmes and subroutines required to perform the various calculations and examinations of the state of the control console are given in Tables I-V not shown, and the methods of holding the current address of an instruction when an interrupt in rate 2 calculations occurs so that the previous calculation can be completed after the interrupt. Normally the instruction register address is determined by a counter incremented by 1 but transfer can occur to an address held by a word withdrawn from the previous address, or indirect addressing can occur. The console (Fig. 2) allows the time increments for rate 1 and 2 calculations to be set, and altered if the operator finds the setting is too high or too low, allows any calculated quantities to be shown in windows 121, 122 depending on which of the display buttons 190 is pressed and allows operator interruption in the calculation by means of the mode switches 211-215, with a Hold mode switch causing calculation to stop at the end of the current iteration and single frame, mode switch restricting operation to only one iteration.