baber/WOPTO huggingface dataset:
Patent GB-359917-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C9/20
Filed: 1930-04-25
Abstract: 359,917. Pneumatic tyres. MICHELIN ET CIE, Clermont-Ferrand, Puy-de-Dome, France. April 25, 1930, No. 12844. Convention date, May 23, 1929. Void [Published under Sect. 91 of the Acts]. [Class 144 (ii).] A tyre cover, preferably the tread portion which may be detachable, is reinforced by metal or other insertions in addition to the usual fabric &c. b. Figs. 1 and 3 show one form comprising circumferential and transverse metal strips d, e respectively. Figs. 2 and 4 show a modification in which metal discs or plates f are arranged in overlapping layers. In further modifications, the reinforcement consists of wire bent into zig-zag, spiral, or flattened helical form.
Patent GB-372551-A (GB)
Title: Improvements in holding devices for lighting accessories of circular character
IPC: F21V17/00
Filed: 1931-05-01
Abstract: 372,551. Mountings for lighting fittings. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Major Equipment Co., Inc. ; 4603, Fullerton Avenue, Chicago, U.S.A.) May 1, 1931, No. 12862. [Classes 75 (ii) and 75 (iv).] A releasable mounting for lenses, shades, colour screens and other lighting fittings of circular character comprises complementary arcuate members telescopically arranged, opening and closing being effected by relative longitudinal sliding of the members. One of the arcuate members 6 of channel section is integral with the reflector 1 and the complementary channel segment 7 telescopically arranged around it can be moved from the " open position shown in Fig. 7 to the " closed " position shown in Fig. 1 in which the lens &c. is secured in place. The lens &c. 4 is introduced and removed edgewise. Integral with the movable segment 7 is a collar 10 adapted to fit over the edge of the reflector and stiffened by a bead 20. A handle 14 and a stop block 13 are fixed on the channel 7 being slightly spaced from one end of the channel to allow of overlap at 18 when the holder is closed, an overlap 19 being also allowed on the other side. The device is especially adapted for theatre &c. lamps accessible only from behind.
Patent GB-875867-A (GB)
Title: High frequency measuring apparatus
IPC: G01R33/60
Filed: 1959-04-15
Abstract: 875,867. Electric tests and measurements. VARIAN ASSOCIATES. April 15, 1959 [May 23, 1958], No. 12873/59. Class 37. A high-frequency bridge, or equivalent apparatus for measuring the property of a sample comprises a unidirectional attenuator disposed in the measuring arm of the bridge between the power source and the place at which the sample to be measured is disposed, the attenuator being adapted to attenuate wave energy applied to the sample but not to attenuate energy reflected back to the bridge. The Figure shows apparatus for measuring the gyromagnetic properties of a material located in a cavity resonator 1. Microwave energy from a klystron oscillator 4 is passed through an isolator 5 and a variable attenuator 6 to a " Magic T " 7. Part of the energy passes along one arm through a unidirectional variable attenuator 8 and a variable phase-shifter 9 to the cavity where the sample is located in a magnetic field generated by magnet 2. Reflected energy passes back through the phaseshifter 9 and through the variable attenuator in the direction which does not produce attenuation to a detector 13. The output of the detector is coupled through an audio amplifier 14 to a recorder 15. The strength of the magnet 2 is periodically swept by a. generator 16 so that the gyromagnetic resonance frequency of the sample is swept through the value corresponding to that of the microwave oscillator 4 and at this frequency absorption occurs, reducing the reflected energy and correspondingly operating the recorder 15. A timer 12 in the fourth arm of the " Magic T" is adjusted to cause a certain amount of the microwave energy to pass directly to the detector to bias the latter to a linear part of its operating characteristic. The variable unidirectional attenuator 8 permits the microwave energy passing through the " Magic T " to be sufficient to produce the required bias on the detector without causing saturation of the gyromagnetic spins in the sample and without reducing the magnitude of the reflected energy received at the bridge. The variable phase shifter 9 permits measurement to be made of both the absorption and dispersion modes in the sample. Automatic frequency control of the oscillator 4 is effected by sweeping the oscillator frequency by means of a sweep generator 18. Energy is absorbed twice per cycle by an A.F.C. cavity 11 when the oscillator is on tune, but only once per cycle when it is off tune. Any resulting fundamental sweep frequency amplitude modulation is extracted from the detector 13 by an amplifier 14 and applied to a phase detector 21 to produce an error signal for correcting the oscillator frequency.
Patent GB-559498-A (GB)
Title: Improvements in the manufacture of soft metal articles having a sheath of hard wear-resisting metal
IPC: F16B5/10
Filed: 1942-09-14
Abstract: 559,498. Making fastenings &c. SUMMERS, J. M. Sept. 14, 1942, No. 12953. Convention date, May 22. [Classes 83 (ii) and 83 (iv)] Stamping; forging; trimming.-Articles having a sheath of hard wear-resisting material and a body of soft metal such as aluminium and aluminium alloys are shaped by a combined forging and stamping process in which the soft metal during forging acts as a fluid medium to shape the hard metal shell. As applied to the production of a bayonet slot type of fastener such as is described in Specifications 538,115 and 557,828, [Group XXV], a stainless steel cap 14, Fig. 1, is placed in a die 28 and a slug 15 of aluminium &c. to form the body is superposed. Pressure applied by the top die 29 stamps the bottom of the shell to position the ram presses 11, 12 and the abutments 13, Fig. 6, also the parts 11A, 12A and 13A, Fig. 1 respectively. Bevels are also formed at 17A and 17B and a flange 19 is formed at 19A and indented at 19B. In further dies the flange is thinned with the formation of an annular rib 20, Fig. 6 ; the flange is trimmed peripherally; and a hole to pass the stud member and cross pin of the fastening is provided. Metal may also be caused to fill anchoring holes 24 in the shell.
Patent GB-745072-A (GB)
Title: New dyestuffs of the dioxazine series and process for making them
IPC: C09B19/02
Filed: 1953-05-08
Abstract: Quinones of the formula <FORM:0745072/IV(a)/1> in which R is cycloalkyl, and X is halogen, are made by condensing one mol. chloranil with two mols. of a compound of the formula <FORM:0745072/IV(a)/2> which are themselves prepared by condensing an alkali salt of a 2-halogen-5-nitrobenzene-1-sulphonic acid which contains a substituent X in 3-position with a cycloalkylamine, and reducing the nitro group.  In examples, R is cyclohexyl and X is chlorine or bromine.ALSO:The invention comprises dioxazine dyes of the formula:-<FORM:0745072/IV(c)/1> in which R is cycloalkyl, and one of the two substituents X bound to the same benzene nucleus is sulpho, the other being halogen. They are obtained by ringclosure of substances of the formula:- <FORM:0745072/IV(c)/2> in which X is halogen (see Group IV(b)).  In examples, R is cyclohexyl and X which is not sulpho is chlorine or bromine.  The products dye or print leather, silk, wool, casein fibres, nylon, superpolyurethanes, paper, linen, cotton, and regenerated cellulose reddish-blue shades.
Patent GB-861838-A (GB)
Title: Glutarimide compounds and methods for their production
IPC: C12P13/02
Filed: 1959-04-16
Abstract: The invention comprises substituted glutarimides of formula <FORM:0861838/IV (b)/1> where R has the formula <FORM:0861838/IV (b)/2> and R1 is hydrogen or a fatty acid acyl radical containing fewer than 6 carbon atoms.  d-3-(2 - hydroxy - 5,7 - dimethyl - 4 - oxo - 6,8 - nonadienyl) glutarimide, designated streptimidone, is obtained by extracting with an organic solvent an aqueous culture medium filtrate of Streptomyces rimosus forma paromycinus with or without prior removal of the paromomycin.  The extraction is preferably carried out in a slightly acid environment. Suitable extraction solvents include alkyl esters of lower fatty acids, ketones such as methyl isobutyl ketone, alcohols such as n-butanol and n-amyl alcohol, chlorinated methanes and aromatic hydrocarbons. The crude streptimidone may be obtained from the extract by evaporation of the solvent or by precipitation with a solvent such as petroleum ether in which it is not soluble.  It may be purified by active carbon chromatography of an organic solution, countercurrent extraction of an aqueous solution with an organic solvent or recrystallization.  Di- and tetra-hydrostreptimidone are prepared by catalytic reduction of stretimidone with gaseous hydrogen using palladium/calcium carbonate catalyst in the first case and palladium/carbon in the second.  Lower aliphatic alcohols are preferably used as solvents for the reduction.  The acyl derivatives are prepared by reacting the streptimidone, di- or tetrahydro-streptimidone with an acylating agent, preferably an acyl anhydride, preferably under anhydrous conditions in the presence of a basic catalyst such as pyridine.  Dilute aqueous solutions are used as herbicides. Specification 797,568 is referred to.
Patent GB-416470-A (GB)
Title: Improvements in or relating to pickers for looms
IPC: D03D49/36
Filed: 1934-04-30
Abstract: 416,470. Loom pickers. BURGERSTEIN, L., Rapperswil, Jona, Switzerland. April 30, 1934, No. 13007. [Class 142 (iii).] A picker is made of two pieces of raw hide, the thicker piece R<1> lining the guide for the picker spindle and surrounding the shuttleengaging part, while the thinner piece R<2> surrounds the part R at the upper part of the picker and is enclosed by the same at the foot. The part R<1> is U-shaped adjacent the slot 1
 for the picking stick or strap and is cut flat to form a guide surface. The striker stud 6 is arranged in a pocket, is curved on its upper surface, as shown, and is secured by a rivet 4<a> or rivets arranged above the line of percussion of the shuttle. The striker may be enclosed at its ends, as shown, or it may extend across the full length of the foot of the picker.
Patent GB-131264-A (GB)
IPC: D03D49/24
Abstract: 131,264. David, A. May 31, 1919. Smallware looms.-The shuttle rack c is driven by a cam e working between partitions b, b<1> mounted on the rack. The cam e is oscillated through a rack g and pinion f from a crank h on a shaft j, which revolves one revolution to two blows of the batten a, so that the rack receives a reciprocation for each. The length of stroke determines the ratio of stroke and repose of the rack. For convenience in the size of the cam the partitions may be mounted on a separate bar connected to the rack at each end through reducing pulleys.
Patent GB-197535-A (GB)
Title: Improvements in and connected with two stroke cycle engines
IPC: F02B75/02
Filed: 1922-05-10
Abstract: 197,535. Hounsfield, L. H. May 10, 1922. Two-stroke-cyole engines; cylinders, pipes for; pumps.-Engines compressing in the crank case and having two pistons working in a common combustion chamber have the gas passages arranged to be without pockets so that lubricating oil cannot collect. With a four-cylinder engine, the admission pipe P from the carburettor is formed in the cylinder block and without any pockets, the outlet from the pipe being controlled by the skirts of the lower pistons. The mixture flows from the crank case in an upward direction to the transfer passages G, the lower pistons controlling the exhaust ports M.
Patent GB-970430-A (GB)
Title: Improvements in or relating to cartons
IPC: B65D5/50
Filed: 1962-04-05
Abstract: 970,430. Cartons. WEYERHAEUSER CO. April 5, 1962 [April 19, 1961], No. 13157/62. Heading B8P.  A carton comprises a platform 26 apertured as at 80 to retain and display one or more articles and is preferably formed from a single blank as shown in Fig. 1. To erect the carton, an adhesively coated panel 25 is stuck to front wall 24 and the undersurface of a flap 27 on platform 26 is stuck to rear wall 22. For storage and transport the blank is folded along lines 34 and 32. Side flaps 70 on the platform are folded downwardly thereby raising tabs 41 to form slots 42 and gusset folds 69 are constrained to lie between the side flaps 70 and side walls 61 when the latter and the rear and front walls 22, 24 are folded upwardly. The carton is held erect by folding inwardly side wall extensions 62 so that tongues 64 thereon may enter the slots 42. A cover 21 hinged to the rear wall has front and side flaps 20, 50 respectively which lie within the front and side walls of the carton when closed.
Patent GB-378386-A (GB)
Title: Improvements in or relating to transmission mechanism for motor driven vehicles
IPC: B60K17/08
Filed: 1931-05-04
Abstract: 378,386. Lubricating internal-combustion engines. LJUNGSTROM, B., 83, Linnegatan, Stockholm. May 4, 1931, No. 13158. Convention date, March 19. [Class 12 (iii).] The lower part 6b of the crank case of an internal-combustion engine is detachable and is divided by a partition 28 into two compartments, one for variable-speed gearing and the other 27 for an oil container. The partition 28 may have a recess 29, if necessary, so as not to interfere with the rotation of one of the cranks. The change-speed gear does not run in an oil-bath but oil is pumped from the container or. tank 27 by a pump 30, Fig. 7, to the gear by a pipe 31a, and also, if desired, to the engine by a pipe 31b. Since the oil tank is not the lowest part of the crank case the oil is returned to the tank by means of a pump 32.
Patent GB-819900-A (GB)
Title: Improvements in or relating to optical microscopes
IPC: G02B21/00
Filed: 1956-04-30
Abstract: 819,900. Optical microscopes. BAKER OF HOLBORN Ltd., C., and CURTIES, M. G. L. April 30, 1957 [April 30, 1956], No. 13262/56. Class 97(1) An optical microscope has two upright pillars extending upwardly from the base to support respectively the opposed sides of a slide member on which the lens tube is mounted. As shown in the horizontal section through the microscope in Fig. 2, the pillars 13, 14 have rearwardly projecting arms 15 and 16, and further arms 17 and 18 directed toward each other and interconnected by a web 19. The lens tube is carried by a slide-member 22 attached to the U-shaped member 26 which slides vertically between the pillars on ball bearings 28 consisting of linear races 31 and 32. The sub-stage condenser unit 37 is similarly ball mounted for vertical adjustment. The microscope stage 65 is adapted for horizontal adjustment in one direction, and a clip member is provided for independently moving the slide in a direction perpendicular to this by means of two sets of ball mountings. Movement of the various members is achieved by the manually operable knobs such as 63, 41, and 73- shown on the front of the box like member 12 of the microscope-in conjunction with mechanical means described in Specification 819,899. The knob 20 controls the intensity of the light illuminating the specimen and the pillars 13 and 14 carry hollow doors 83, 84 which totally enclose the microscope when shut and have racks 88 for storing accessories.
Patent GB-647301-A (GB)
Title: Improved means for protecting furniture from insect access
IPC: A01M29/34
Filed: 1948-05-14
Abstract: 647,301. Insect traps for furniture. HENDERSON, J. May 14, 1948, No. 13294. [Class 5(i)] Furniture legs are formed or provided with annular troughs for containing an insect - repellent or destroying substance. The trough 3 is surmounted by a dome 7 the lower end of which extends below the trough. The upper end 5 of the leg is threaded to engage a plate 10 to be attached to the article of furniture.
Patent GB-239268-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/10
Filed: 1924-05-30
Abstract: 239,268. Spiers, W. May 30, 1924. Knot-tying devices.-Relates to knot-tying devices for use particularly on knitting machines or the superposed cylinder type, as described in Specifications 24290/12 and 15008/00, [Class 74 (ii), Knitting &c.]. Yarns such as 1<b> are led to corresponding fingers such as 2<b>, from which one yarn proceeds to the needles while the others are held by trapping members 3, 3a. The running yarn 1 travels upwards in front of a fixed guide plate 5 to a non-movably mounted knottying device 6 which may be of the type described in Specifications 18778/00 and 2311/03 and thence to the needles. To knot the running yarn to another, a finger is operated to bring its yarn 1a into the path of the looper element 8. The V-shaped yarn receiving end 8a then places both yarns across the tying bill and the clamping elements 6b. An extension on another guide plate deflects the yarns behind the blades of the bill. Meanwhile the part 8 throws the yarn 1a behind the plate 5 while the yarn 1 is brought between the two guide plates. The bill now rotates to form the knot, the yarn 1 and a short piece of the yarn 1a are cut off and, as the bill approaches the end of its movement, the loops are stripped therefrom while the joined yarns remain in the clamp 6b to enable the knot to be tightened. A reverse movement of the bill causes the old yarn to be trapped. The yarn fingers are pivoted on a shaft 12 and are held by springs 14 against a stop rod 13 excepting when depressed by the action of a cam 17. The cam is rotatable and slidable on a spindle 18 and is moved endways to engage one or other yarn finger by means of a slotted plate mounted on a bell-crank controlled by a pattern chain, the studs or dogs on which are of different heights. This plate and the cam 17 are moved to different extents according to the height of the controlling stud. The pattern chain is stationary when the knot-tying and yarn changing apparatus is inactive. The bill and clamp are actuated by a lever 59 from a cam through intermediate means held out of action when the cam 17 is in normal position. The trapper comprises the plate 3 attached to a block 5a a spring finger 67 pivoted thereto and the hooked member 3a. Fig. 7 shows the normal position, with a pin 69 on the member 3a engaging the extension 67a of the spring finger to prevent it from trapping the yarns. During the operative movement of the bill the member 3a moves away, opens the main trapper and causes the yarns freed thereby to be trapped under the finger 67. On the return movement the hook of the member 3a engages the severed yarn and traps it. The severed ends are received in a trough. When splicing is to be done the running yarn is not severed. Specification 220,366 is also referred to. Reference has been directed by the Comptroller to Specifications 219,313 and 238,301.
Patent GB-1246786-A (GB)
Title: Improved belt fissure detection device
Inventor: NAGATA ZENJI
IPC: B65G43/02
Filed: 1970-03-19
Abstract: 1, 246, 786. Flaw detectors. SUMITOMO ELECTRIC INDUSTRIES Ltd and TOKAI RUBBER INDUSTRIES Ltd. March 19, 1970, No. 13331/ 70. Heading GIN. Fissures in a conveyer belt are detected by pairs of loop-coils implanted in the belt at spaced intervals to couple transmitter and receiver coils as the loops pass the detector station. CONTROL CIRCUIT Fig. 4 (not shown). The two pulses normally produced by the passage of each loop pair are fed to AND/OR gates, triggering and resetting a flip-flop. A single pulse due to breakage of either coil leaves a steady output, which integrated over a short time reaches a set (comparison) level to actuate alarm and control circuits. LOOP-COIL ARRANGEMENTS. Lengthwise and transverse loops 2, 6, are embedded in the belt Figs. 1, 2 to co-operate with a transmitter coil A and receiver coils B, C, which may be mounted for transverse movement by belt-edgefeelers to maintain alignment with the loops. The coils A, B, C are preferably tuned and wound on a ferrite core together with a low-impedance coupling coil for connection to the transmitter / receiver Figs. 5, 6 (not shown). Minor modifications of the loop layout are illustrated Figs. 7..16 (not shown) including three rectangular coils with two transmitters (G), (H) and three receivers (J), (K), (P), Figs. 13, 14. Flexible loop conductors may be wound as a helix on a plastics core which is then coiled or twisted, or several such conductors may be arranged in parallel in a band Figs. 18..23 (not shown).
Patent GB-811694-A (GB)
Title: Treatment of hides and skins with resin dispersions
Inventor: COLE GRAHAME HENRY THOMAS
IPC: C14C3/22
Filed: 1957-04-26
Abstract: Water-insoluble solid copolymers of an ester of methacrylic acid with a polymerizable aldehyde or a derivative from which the parent aldehyde is recoverable by hydrolysis may be prepared by emulsion polymerization.  Specified esters of methacrylic acid are ethyl, propyl and preferably methyl.  Specified aldehydes are crotonaldehyde, acrolein and methacrolein, and derivatives which may be used are their acetal and acetate derivatives.  The copolymer may contain minor amounts of acrylic or methacrylic acid, amide or nitrile.  The proportion by weight of aldehyde or derivative in the copolymer may be up to 20 per cent and is preferably 2-10 per cent. Example 1 describes the preparation of an aqueous dispersion of a methyl methacrylate: acrolein acetal copolymer by adding methyl methacrylate and acrolein acetal with ammonium persulphate to a heated aqueous mixture of sodium carbonate, oleyl sodium sulphate and turkey red oil; Example 2 describes the preparation of an aqueous dispersion of a methyl methacrylate: crotonaldehyde diacetate copolymer by adding methyl methacrylate, crotonaldehyde diacetate, sodium hydrosulphite, ammonium persulphate, oleyl sodium sulphate and turkey red oil to a heated aqueous mixture of sodium bicarbonate oleyl sodium sulphate and turkey red oil under nitrogen; in Example 3 a dispersion is prepared as in Example 2, using hydrogen peroxide and zinc formaldehyde sulphoxylate in place of ammonium persulphate and sodium hydrosulphite; in Example 4 a dispersion is prepared as in Example 2 using crotonaldehyde in place of crotonaldehyde diacetate.
Patent GB-790557-A (GB)
Title: Piperazine derivatives
Inventor: GOLDBERG ALAN AUGUST
IPC: C07D295/027
Filed: 1955-05-09
Abstract: The invention comprises piperazine monoglutamate and piperazine bis (glutamate), and a mixture thereof, and the preparation of a piperazine glutamate by admixing solutions of piperazine and glutamic acid in substantially the desired stoichiometric proportions.  Thus glutamic acid and piperazine hydrate may be reacted in the desired proportions in water, and the resulting solution is then evaporated to dryness.  An alternative procedure is to prepare solutions, in the desired proportions, of glutamic acid and of piperazine in a solvent or solvents, e.g. ethyl alcohol, in which the required salt is sparingly soluble or substantially insoluble and add one solution to the other.  The mixture of the mono- and bis-glutamate may be prepared by mixing aqueous solutions of the two glutamate salts, or the solution may be prepared by reacting piperazine and glutamic acid in the proportions of more than one but less than two mols. of glutamic acid for each mol. of piperazine, and the solutions may then be evaporated to dryness.  In the examples the monoglutamate and bis-glutamate are prepared.ALSO:A therapeutic composition contains as the active ingredient piperazine monoglutamate and/or piperazine bis(glutamate).  The composition may be in tablet form.