baber/WOPTO huggingface dataset:
Patent GB-1506667-A (GB)
Title: Speculum
IPC: A61B1/24
Filed: 1976-04-15
Abstract: 1506667 Speculum ABM-MAVELLO AB 15 April 1976 [21 April 1975] 15553/76 Heading A5R A speculum for examining body cavities comprises a pair of identical angle pieces 1 of U-shaped cross-section that are pivotally connected at their mid-points with their channels facing each other. The pivoting is provided by a pin 5 on each angle piece engaging with a snap fit within a corresponding slot in the other angle piece. One side of each angle piece is provided with an enlarged tablike projection 8 at its mid-point. These projections have ratchet teeth 9 on their inner recessed surface for releasable engagement with tabs 10 on the other angle piece when the two pieces are pivoted together. The angles have fold lines 11, 14 slits 13 and stiffening ridges 15 all of which facilitate flexing of the central portions of the angles to enable readjustment of the teeth 9 and projections 10. Arms 3 are narrower than arms 4.
Patent GB-1210759-A (GB)
Title: Improvements in needle-beds for domestic knitting machines
IPC: D04B15/00
Filed: 1969-03-25
Abstract: 1,210,759. Knitting machines. EMPISAL (PTY) Ltd. 25 March, 1969 [2 April, 1968], No. 15610/69. Heading D1C. A hand knitting-machine having a bar shape needle a sinker bed 16 has the slotted top plate through which the butts project extended beyond the base to provide flanges 21 which serve as guides for the camslide 20. The top plate 12 is secured to the base by being attached to flange 14 which project inwardly, outwardly or in both directions from the upper edges of the side walls of the base.
Patent GB-439169-A (GB)
Title: Improvements in or relating to the manufacture of moulding powders
IPC: C08F20/50
Filed: 1934-05-25
Abstract: Moulding - powders are manufactured by subjecting monomeric methacrylonitrile or a mixture whereof the predominating constituent is methacrylonitrile, if desired with the addition of other polymerizable substances, to polymerizing conditions in the non-emulsified state in the presence of not more than 20 per cent on the weight of the mixture of a plasticizer for the polymeric product, with or without the addition of a substance promoting the polymerization reaction, e.g. a peroxide such as benzoyl peroxide, and subjecting the solid polymerized product to a grinding operation to convert it to powder.  Pigments, e.g. Titanium white, iron oxide or zinc oxide, may be incorporated during the grinding process, whilst organic dyestuffs and fillers may be incorporated during the grinding process or subsequently by malaxating between hot rolls.  In examples, methacrylonitrile is polymerized with the aid of benzoyl peroxide in the presence of the following substances: (1) methyl methacrylate and dimethyl phthalate; (2) methyl methacrylate, methyl glycol phthalate and cellulose acetate; (3) acrolein and dimethyl phthalate; (4) styrene, coumarin and a mixture of butyro-and valero-lactones; (5) vinyl acetate, coumarin and butyro- and valero-lactones; (6) methyl acrylate and dimethyl phthalate; (7) coumarin and butyro- and valero-lactones; (8) lactide and butyro- and valero-lactones; (9) acetoacetic ester; (10) coumarin.  In each case the product is powdered.  Specifications 419,357 and 421,397 are referred to.
Patent GB-163922-A (GB)
Title: Improved cigarette and like delivery apparatus
IPC: A24F15/04
Filed: 1920-06-10
Abstract: 163,922. Chapman, G., and Sellars, H. June 10, 1920. Contents, delivering.- An apparatus for containing and delivering cigarettes &c. comprises a storage chamber 1 having an inclined back 8 and a rotary roller 2 having flat sides which lift and separate the cigarettes lying in the back and carrv them one at a time in the groove 3 to be dropped on to the inclined bottom 10 at the front of the apparatus, where they roll to the eldge 11. The roller may have a pair of grooves, and is secured in position by a split ring engaging an annular groove therein and screwed to the side of the apparatus. The apparatus is provided with tags by which it may be secured to a wall &c., or with a broad base for resting on a table &c.
Patent GB-980873-A (GB)
Title: Improvements in or relating to unipole and dipole aerial systems
IPC: H01Q1/36
Filed: 1962-04-25
Abstract: 980,873. Aerials. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. April 25, 1962 [May 17, 1961], No. 15736/62. Heading H4A. A wide-band unipole aerial (or a dipole, not shown) comprises a helical winding 2 having capacitances 4 connected between tappings thereon to form a plurality of resonant circuits. The winding former 1 is of insulating material. The capacitances are so chosen that the resonant frequency of each individual circuit is substantially equal to the frequency at which the length of helix between the terminal point thereof and the individual resonant circuit considered is the optimum value for reception or transmission. The spacing of the taps 3 preferably follows a logarithmic periodic law, that is the ratio of the distances, e.g. l 1  and l 2 , between the terminal point of the helix and any two adjacent taps, e.g. A and B, is a constant #. The individual resonant circuits are damped by resistors 5 such that the frequency response curves of adjacent resonant circuits overlap at their 3 dB. points. A theoretical argument is given to show that the physical length of the unipole is reduced by a factor of 2/# as compared with a plain helix. The aerial may be used on motor vehicles.
Patent GB-625792-A (GB)
Title: Improvements relating to trigger mechanisms
IPC: G05G7/08
Filed: 1947-06-16
Abstract: 625,792. Linkwork. CHAMBERLAIN & HOOKHAM, Ltd., JAMES, S., DEACON, L. O., and BOLT, L. June 16, 1947, No. 15763. [Class 80 (iii)] Mechanism for rocking a transmitting member 8 about its pivot between predetermined positions upon repeated movements of a lever 1 comprises a pawl 4 pivoted on the lever 1 and having an extension 5 and a shallow V- groove 6, the extension 5 being adapted to engage alternately the surfaces 11 of a pair of notches 10 in the member 8. Thus on depression of lever 1 against a spring 3, extension 5 of the pawl 4 engages a cam surface 11 and the pawl tilts and turns member 8. On release of lever 1 the V- groove 6 of the pawl 4 engages a stop 7 to return the pawl to its initial position. Further depression of lever 1 thus turns member 8 in the opposite direction. The stop 7 may be replaced by a flat blade spring engaging a flat base of the pawl.
Patent GB-651914-A (GB)
Title: The manufacture of anhydro-n-carboxy glycine
IPC: C07D263/44
Filed: 1948-06-11
Abstract: Anhydro-N-carboxy glycine is prepared by treating with an inorganic acid chloride the product obtainable by reacting glycine with sodium or potassium carbonate in an aqueous medium and subsequently isolating the product.  The starting material may be made as described in Specification 651,913 by mixing glycine and sodium or potassium carbonate in an aqueous medium and either cooling a hot concentrated solution or adding methanol to a concentrated solution at room temperature when a white solid is precipitated.  This reaction product is mixed with an inorganic acid chloride preferably in the presence of a diluent.  In examples, a glycine sodium carbonate reaction product is treated in (1) with thionyl chloride in the presence of ethyl acetate and with phosgene in (2) and (4) in the presence of ethyl acetate and (3) in the presence of dioxan.
Patent GB-744685-A (GB)
Title: Dispersions of polyvalent metal oxides or hydroxides in mineral lubricating oil
IPC: C10M159/20
Filed: 1953-06-09
Abstract: Dispersions of polyvalent metal oxides or hydroxides in mineral lubricating oil are prepared by blending the oil, a dihydric alcohol and the oxide or hydroxide, adding to the blend a mixture of a non-hydroxy monocarboxylic acid (or its calcium salt) containing 1 or 2 carbon atoms and an alpha-hydroxy monocarboxylic acid (or its calcium salt) containing 1-3 carbon atoms, and filtering.  The dispersions, when employed as lubricants in internal combustion engines, neutralize acids formed during the operation of the engines. The non-hydroxy monocarboxylic acid may be formic or acetic acid, while the alpha-hydroxy monocarboxylic acid may be glycollic or lactic acid. In the preparation of the dispersions, metal sulphonates, phosphonates, phosphates, normal phenates or basic phenates may be added as stabilizing agents for the dispersions.  In the examples, dispersions are prepared from calcium hydroxide, ethylene glycol, mineral lubricating oil, calcium mahogany sulphonate, glycollic acid and acetic and/or formic acid.  The ethylene glycol is distilled off before the dispersion is filtered and in the final dispersion some of the calcium hydroxide has reacted with the free acids to form calcium glycollate, acetate and/or formate.  For comparison purposes, a similar dispersion is described from which the acetic and formic acid have been omitted.  To the dispersions of the examples there may be added sulphurized calcium alkyl phenate (wherein the alkyl radicle is derived from a polypropylene fraction containing an average of 14 carbon atoms per molecule), the zinc salt of a mixed diester of dithiophosphoric acid (wherein the diester radicles are obtained from a butyl alcohol and a hexyl alcohol), and sulphurized diparaffin sulphide (obtained from a paraffin having a molecular weight of 370).  Specification 718,714 is referred to
Patent GB-875451-A (GB)
Title: New dyeing process
Inventor: PARSONS BRIAN NEVILLE
IPC: D06P3/10
Filed: 1959-05-08
Abstract: Natural or regenerated protein textile materials are dyed or printed with an aqueous dispersion of one or more disperse azo dyestuffs which are free from sulphonic and carboxylic acid groups but which contain at least one group:-  -Y-A-Z wherein Y represents -O- or -S-, A represents a substituted or unsubstituted alkylene radical and Z represents a halogen atom or an oxiranyl group.  Specified radicals A are methlene, ethylene, trimethylene, propylene, hydroxytrimethylene, tetramethylene and a  : b -dimethyl ethylene.  Dyeing is effected at a temperature up to or above 100 DEG C., at a constant or varying dyebath pH value, and the dyebath may also contain ammonium sulphate, acetate or phosphate, sodium bicarbonate, sulphuric, phosphoric, formic or acetic acid, ethyl lactate or tartrate and anionic, cationic or non-ionic surface-active agents.  Printing is followed by steaming and the printing paste may contain acid-binding agents and the usual thickeners and adjuvants such as sodium alginate, methyl cellulose, oil-in-water or water-in-oil emulsions, ethanol, urea and sodium m-nitrobenzene sulphonate.  Specified disperse azo dyes are, among others, 1-phenyl- 3-methyl- 4-[41-(g -chlorob -hydroxypropoxy) phenylazo]- 5-pyrazolone, 1-[41-(g -chlorob -hydroxypropoxy) phenylazo]- 2-naphthol and 4-ethoxy- 41-(211 : 311-epoxypropoxy) azobenzene.
Patent GB-1462732-A (GB)
Title: Device for securing tips to rod-shaped articles such as cigarettes
IPC: A24C5/47
Filed: 1975-04-17
Abstract: 1462732 Tipping cigarettes A SCHMERMUND [trading as MASCHINENFABRIK ALFRED SCHMERMUND] 17 April 1975 [19 April 1974] 15866/75 Heading A2C Tips are secured to cigarettes by placing cut sheets 5 of tipping paper on a rotating grooved drum 7; pressing cigarette tip assemblies 18 into the grooves thereby partially wrapping a sheet 5 around an assembly but leaving an extended free end 28; folding the free end so that it lies parallel to the surface of the drum by means of a guide 22; and ejecting the assembly from the grooved drum 7 into a groove of a second drum 31 so that the sides of the grooves of the second drum press the free end against the assembly and thereby complete the wrapping. The grooves of both drums are shaped so that in crosssection they comprise an inner cylindrical portion and an outer radial portion of narrower width. The tipping sheets are initially held on the drum 7 by suction applied through orifices 10 adjacent the grooves. Pressure is applied to the orifices after the assemblies have been pressed into the grooves so that the free end is in an upstanding position ready for folding by the guide. In the embodiment shown the assemblies are ejected from the grooves by means of a rotating ejector drum 37 having projections which can extend into the grooves. Alternatively each groove may be provided with an ejector rod activated by a cam.
Patent GB-575278-A (GB)
Title: Improvements in or relating to abrasive tools and instruments
IPC: B24D3/08
Filed: 1944-08-19
Abstract: 575,278. Abrasive tools. FERRARI, J. Aug. 19, 1944, No. 15893. [Classes 60 and 124]. [Also in Group II] In an abrasive tool or instrument diamond or other abrasive is partly held by a foundation of beryllium alloy and partly held by superimposed sprayed metal. The alloy preferably contains 1 to 10% beryllium ; best results are stated to be obtained when the alloy is a copper base alloy known by the trade description Cu Be 250 and having a nominal analysis of beryllium 2 per cent, cobalt 0.25 per cent, copper 97.75 per cent. The diamond or other abrasive is distributed, preferably in a predetermined pattern, over the interior surface of a die which is of the approximate shape of the finished tool and which may be coated wholly or in part with a heat resisting agent such as fire-clay, the depth of the coating varying with the size of the diamond or abrasive but being generally of the order of 33 per cent of the grain thickness of the abrasive. Molten or plastic beryllium alloy is then poured or forced into the die to form a foundation in which the diamond or other abrasive is partly embedded ; small cavities around the diamond and on the operative portion of the tool are then sprayed with metal. Alternatively diamonds or particles are placed on the end of a piece of beryllium alloy. Heat is applied and pressure brought to bear on the diamond bearing surface; cavities are formed around most of the diamonds or particles ; the cavities are filled, and the surface built up, by metal spraying. The product is then turned or machined to any desired shape. Specification 562,294 is referred to.
Patent GB-144734-A (GB)
Title: Improvements in light projectors including head lamps for vehicles and the like
IPC: F21S8/10
Filed: 1920-06-12
Abstract: 144,734. Correll, P. E. June 12, 1919, [Convention date]. Vehicular and like lanterns; search-lights. - Vehicular lamps and other light-projectors, such as head-lights, motorist spotlights, search-lights, and lamps for flood lighting are provided with a reflecting-member, the whole or a part of the effective surface of which is a bright metallic surface having a slight sheen so as to possess slight light diffusivity. In the form shown, the paraboloidal reflector B of a motor head-light is arranged with its focus just in front of the filament of an electric lamp A, the upper half being of high light diffusive power for preventing glare, and the lower half of slight light-diffusive power for preventing streakiness in the beam of light. The Specification as open to inspection under Sect. 91 (3) (a) also states that reflectors of slight light-diffusive power may be employed with head-lights, which are tilted downwards, or in which the reflectors are provided with an ellipsoidal and a paraboloidal reflecting-surface, or a paraboloidal and hyperboloidal reflecting-surface, or with an upper and a lower paraboloidal surface, the foci of which are not coincident, or the axes of which are inclined to one another. This subject-matter does not appear in the Specification as accepted.
Patent GB-691853-A (GB)
Title: An improved method of and apparatus for the manufacture of moulded articles of fibrous material
IPC: D21J3/00
Filed: 1949-06-17
Abstract: 691,853. Moulding articles from aqueous fibrous pulp. MULLER, K. June 17, 1949, No. 16171/49. Class 87 (ii). The pulp is fed through pipe c, Fig. 1, into vessel b and thence to moulding sieve a first at low pressure and then at high pressure, the water escaping through the sieve into vessel e. The object of the initial low-pressure feed is to preclude penetration of the fibre into the openings of the sieve. During this low-pressure feed the supply is throttled in pipe c and the level of the pulp rises slowly into the sieve. Vessel e is made so small that the level A of the water therein is just below the pulp level B within the sieve; the pressure forcing the water through the sieve (corresponding to the difference in levels) is therefore low. The water overflows at f. An outlet g for the water can be opened and closed as desired. d is a supply pipe for a gaseous pressure or heating means. Fig. 2 shows a modified apparatus in which the water vessel k is closed at the top and has pipes l, m, n to control the discharge of water. Initially l is open and m and n are closed. When the high pressure is applied, n may be opened. Suction may be applied through m to increase the pressure difference. When all the fibre has been deposited, emptying of vessel k through pipe can be hastened by shutting l and admitting compressed air through m.
Patent GB-318531-A (GB)
Title: Improvements in the manufacture of composite yarns and the like
IPC: D01D7/02
Filed: 1928-06-05
Abstract: 318,531. Dreaper, W. P. June 5, 1928. Yarns and threads; processes.-A, composite or doubled and twisted yarn is produced by passing two or more yarns or strands, at least one of which must be a twisted strand, from suitable collecting units over a godet or similar speed regulating device through a funnel guide into a centrifugal spinning box, the composite yarn being subsequently wound off the cabe so formed. The second yarn may be untwisted or of opposite twist to the first. The strands forming the composite yarn may be viscose or other artificial silk, natural silk, cotton, linen or staple fibre, while the yarns may be treated with a sizing liquid before or after reaching the godet.. The cake of doubled yarn may be sized or bleached after removal from the centrifugal box. Additional twist may be put on the single yarns as they pass to the godet and the composite yarn is wound off the centrifugal cake with or without additional twisting. Specification 189,155 is referred to.
Patent GB-515385-A (GB)
Title: Improvements in and relating to clarinets
IPC: G10D7/06
Filed: 1938-05-31
Abstract: 515,385. Wind musical instruments. HAYNES. J. W. May 31, 1938, No. 16254. [Class 88 (ii)] Relates chiefly to the means for producing C#, G# and Eb, Bb in clarinets &c. a pad 45 and ring key 44 being provided over the usual A, D hole and pad 45 adapted to be held down by the usual ring key over hole 12 whereby the left hand second finger is free to manipulate the ring key 44 and the G # C # pad 51 linked thereto ; a normally closed supplementary pad 60 covers a supplementary B b, E b hole. In the instrument shown, the rings 16 for the three right-hand fingers at the holes 13, 14, 15 are all on a shaft 27, and pad 30 also on shaft 27 is therefore directly closed by any one of them. Shaft 27, by an arm 54 thereon engaging an arm 53 on a shaft 43, turns shaft 43 and closes the C#, G# pad 51 thereon. Shaft 43, by an adjustable arm 42 thereon engaging an ear 40 on a shaft 39, turns shaft 39 and closes pad 37 thereon Ring 16 at hole 12, for the left-hand third finger, is on a shaft 25 and therefore directly closes pad 45 also on shaft 25. Shaft 25, by an arm 47 thereon engaging a second ear 40 on shaft 39, turns shaft 39 and so also closes pad 37 as above. Ring 44, for left-hand second finger, is on the shaft 43 and so closes pad 51 and pad 37 as above. Ring 16 at hole 11, for left-hand first finger, is on a shaft 22 and therefore directly closes pad 17 also on shaft 22. Pad 17 is also controlled from the thumb ring 19 at hole 20. Pads 57, 60 on shafts 55, 58 are opened by finger levers 62, 62a, the opening of pad 60 (the closed E b, B b key) also rotating shaft 43 to close pad 37 as above, through an arm 63 engaging the arm 53. The ring 44 may be replaced by arms 65, Fig. 11, or 67, Fig. 12.
Patent GB-889047-A (GB)
Title: Improvements in and relating to liquid heating apparatus
IPC: H05B1/02
Filed: 1959-05-12
Abstract: 889,047. Immersion heaters. GILL Ltd., R. T., and GILL, R. T. May 10, 1960 [May 12, 1959], No. 16306/59. Class 39(3) Apparatus for heating liquids comprises an electrical heating element movable relative to a liquid container but not supported by the container and a switching device for switching off current supplied thereto. The heating element is mounted on a movable, preferably flexible arm 12 and is used to measure energy, temperature or time lapse. 16 is an on and off switch and is held on against a spring by relay 17. A temperature sensitive resistance R 2  is in the bridge circuit R 2 , R 3 , R 4 , R 5 . When R 2  alters due to heating the spring moves the switch 16 to the off position. Neon indicators show whether the switch 16 is on or off. Alternatively a mechanical timing switch of double pole clockwork operated type is connected in series with the mains alone or in parallel with another type of automatic switch for alternative operation or controls switch 16. If the heating element has a tapped winding a selector switch is connected in circuit to provide for increased or reduced heating rates. Circuits may prevent operation if the earth connection to the heating element is disconnected. The circuit heats jugs, pans such as saucepans, teapots of translucent plastic. The containers may have an entrance duct for liquid at the bottom of the vessel controlled by an adjustable flow valve and a flow restricting exit duct. A clockwork or electric time switch or a thermostat or a thermoelectric time delay switch or a bimetal switch may be used and may be in the plug for the heating element, Fig. 1 (not shown). In another embodiment, Fig. 3 (not shown) a flexible or rigid arm or an arm of rigid members pivoted together holds the heating element. The heating element may be formed by winding high resistance wire on to one or more mica former strips and bending the arrangement round an open ended metal cylinder inside an outer metal cylinder. The windings of the heater are packed with "pyruma" (Registered Trade Mark). The outer casing is a rectangular strip of light gauze metal provided at one end with three metal tongues wrapped around. The tongues are welded or soldered to the other end of the strip. The ends of the cylinders are joined by soldering or welding. An earthing lead (preferably duplicated) formed by metal braiding or screening for the cable is connected to the inner and outer metal cylinder. The cable passes into the supporting arm. In another embodiment, a conductive perforated earthed stainless steel mesh screen is disposed close to the heater. The position of the arm operates a safety switch. In all embodiments, variations in the heating rate are obtained by tappings on the resistance wire of the element so that parts of the wire can be switched in or out as desired. The liquid may have suspended solids and fine grain solids in motion.
Patent GB-577540-A (GB)
Title: Improvements relating to agricultural implements
IPC: A01B1/04
Filed: 1943-10-05
Abstract: 577,540. Digging tools. GASCOIGNE, G. H., and KINGSTON, J. A. Oct. 5,1943, No. 16317. [Class 6 (ii)] Operation of a fork or spade is facilitated by an attachment comprising a spring which is flexed during the earlier part of the soil lifting operation but unbends or unwinds to assist the latter part of the lifting and turning of the loosened soil. The attachment includes a shaft B connected by interengaging eyes B<x>, A<6> to a collar A<4> clamped on the shaft A<1> of the implement, and a tread - plate C brought to rest on the ground by the insertion of the tines A. The connecting hinge pin B<1> is enveloped by one or a pair of springs D opposing tilting of the handle A<1> until the tines A have loosened the soil when both the tines and soil pivot upwardly about the connection A<6>, B<x>. Thereafter the soil may be tipped aside by the universal character of the same connection. A chain E limits the separation of the members B, C. The handle A<2> is provided with an extension A<3>.