baber/WOPTO huggingface dataset:
Patent GB-476721-A (GB)
Title: Improvements in and relating to radio direction finding apparatus
IPC: G01S3/14
Filed: 1936-03-03
Abstract: 476,721. Directive wireless signalling. HOOVEN, F. J. March 3, 1936, No. 6414. Addition to 472,111. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 5, 1936.] [Class 40 (v)] A directive system designed to enable a moving craft to " home " on to a distant beacon, and comprising a directive aerial and a non- directive aerial, the signals from which are separately amplified and combined as described in the parent Specification, is characterized by the provision of means for adjusting the phaserelation of the two branch signals so as to bring them more closely into alignment. The pick-up from the directive aerial 10 is fed through a screened line 11, 14 to an amplifier 13, where it is heterodyned with a local oscillator 19 and passed through further amplifiers 18, 20 to a coil 22, which feeds the output in push-pull to two detectors 36, 37 shunted across the visual indicator 44. Signals from the non-directive aerial 25 are similarly amplified at 28, heterodyned with local oscillations from 19 in the modulator 29, and, after further amplification at 31, are fed from a coil 33 to a mid-point tapping 39 on a resistance shunted across the common combining circuit or input to the detectors 36, 37, so that the signals reach the latter in phase. The phase-adjusting means is inserted in the lead 40 from the common combining circuit 22, 38, and consists of an impedance network 54, 57, 58 with a variable tapping 55. Headphones 62 are supplied through a valve 60 with signals from the non- directive aerial 25. Automatic volume control is applied to the amplifiers 20, 31, through leads 70, from the voltage built up across a condenser 67 by the rectified grid current of the detector 60, so that the sensitivity of the indicator 43 varies inversely with the distance from the transmitter. In a modified arrangement, signals from the frame aerial are applied to the detectors in phase, whilst signals from the non-directive aerials are applied in pushpull. This allows the non-directive signals, which are usually of greater intensity, to be more accurately balanced in the input circuit of the detectors 36, 37.
Patent GB-768189-A (GB)
Title: A method of manufacturing a feeding stuff for animals, in particular fowls
IPC: A23K1/18
Filed: 1955-03-04
Abstract: Flakes of a thickness between 0,5-1,5 mm. particularly for feeding chickens and other fowls are formed from a powdered feed mixture consisting of 10-96 per cent vegetable and 1-50 per cent animal feed products, 0,2-15 per cent mineral substances, about 0,01-3 per cent of vitamins, antibiotics, trace elements, and substances forming a binding agent with water or steam, and 1-25 per cent crude fibre e.g. the fibre of barley or oats grits, fine wheat bran or lucerne meal, by treating the mixture with steam or water and pressing the resulting plastic mass to flakes.  If desired, only the binding agent is treated with steam or water, after which the other constituents are incorporated; the powdered main feed may be separately treated with steam e.g. to a temperature below 70 DEG C., prior to mixing in the water preparation of the binding agent.  The binding agent may be prepared from linseed cake, with or without cereal meal, skim milk or skimmed milk powder, boiled mashed potato or animal glue.  The water or steam treatment may be effected in a continuously-operating screw conveyer and the moist mixture may be extruded through holes as strings which are cut to a suitable length, pressed to flakes and dried.
Patent GB-1328056-A (GB)
Title: Decade frequency generator
IPC: H03B23/00
Filed: 1972-02-11
Abstract: 1328056 Cathode-ray tube circuits WANDEL U GOLTERMANN 11 Feb 1972 [13 Feb 1971] 6516/72 Heading H4T [Also in Division G4]  A decade frequency generator (for generating a sweep frequency) has decade stages FD1- FD5 (with output at 1) controlled by a decade counter chain ZD1-ZD5 to be quasi-continuously swept as the counter chain is indexed under control of an adjustable control device 8, the count being passed to a display 18 via a store ZSp when a pulse generator 10 produces a marker pulse, this being done periodically with a timing which is adjustable at will within the sweep frequency cycle. The pulse generator 10 produces its pulse from a comparator 14 comparing a voltage from a potentiometer 15 with the output of a D/A converter fed from the counter chain ZD1-ZD5, the converter output also forming the X deflection voltage of a CRT 13 of a frequency curve display apparatus. Control device 8 also controls the conversion ratio of the D/A converter via a sweep swing matching device 11.
Patent GB-981650-A (GB)
Title: Apparatus for handling bulk material
Inventor: BARKER WILFRED
IPC: B65G27/00
Filed: 1963-02-19
Abstract: 981,650. Vibratory screens. W. H. BARKER & SON ENGINEERS Ltd. Jan. 10, 1964 [Feb. 19, 1963], No. 6595/63. Heading B2H. [Also in Division B8] A vibratory screen 10 is suspended by a plurality of endless chains or other flexible endless elements 11 each of which extends around a pair of circular of part-circular members 12, 13 arranged one above the other, the upper member 13 being carried by a fixed support 18 and the lower member 12 by the screen and the arrangement being such that the flexible elements will wrap on to or unwrap from the members 12, 13 as the screen is vibrated. The screen may be reciprocated by a crank or eccentric weight. Each upper member 13 is carried by a member 14 which is held in trunnions 16 supported on springs 17 for absorbing impact of material thrown on to the screen. When chains are employed as the flexible members, each member 12 may be provided with-one or more teeth.
Patent GB-436077-A (GB)
Title: Improvements in and apparatus for drying dyestuffs and other materials
IPC: F26B5/04
Filed: 1934-03-01
Abstract: 436,077. Drying-apparatus. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.- (I. G. Farbenindustrie Akt.-Ges. ; Frankforton-Main, Germany) March 1, 1934, No. 6601. [Class 34 (ii)] For drying moist dyestuffs or other substances readily decomposable by heating at high temperatures and tending to smear, conglomerate, or form crusts, the substance to be dried is supplied in apparatus comprising two or more superposed floors a capable of being heated and formed each with a radial slot b to permit discharge of the substance to a lower floor or to an outlet g. The substance is uniformly spread on the floors by a stirring appliance comprising radial arms d mounted on a rotary shaft c and provided with sweeping members e. When the substance has been spread uniformly the stirring appliance is prevented from rotating until the drying is complete, thereafter the shaft c, which is capable of being lowered, being set into rotation and gradually lowered to sweep off the substance through the radial slots b<1> to the outlet g. The floors a are preferably hollow and heated by water, steam, or other means. h is an opening for attachment to a vacuum conduit.
Patent GB-128882-A (GB)
Title: Improvements in and relating to Bust Formers for use in connection with Ladies' Garments.
Inventor: STEBBING ERNEST
IPC: A41C3/14
Filed: 1919-03-17
Abstract: 128,882. Stebbing, E. March 17, 1919. Breast - pads. - A breast-pad for ladies garments comprises a convex stiffener c of hair or other suitable cloth made of two pieces, the meeting edges of which, before stitching together, are cut in the arc of a circle and substantially straight respectively. A pad of wadding or the like c is secured at its edges and across two diameters to the cloth c.
Patent GB-807101-A (GB)
Title: Isomers of pseudoirones substituted at c, and/or c
Filed: 1956-03-02
Abstract: Mixtures of stereo isomeric pseudo-irones substituted in the C9 and/or C11 positions are prepared from a mixture of dehydro-3-methyl linalool and an aceto-acetic ester having the general formula <FORM:0807101/IV (b)/1> wherein three at most of the radicals R1, R2, R3 and R4 may be hydrogen, the other or others being identical or different alkyl or alkenyl groups and R is the radical of an alcohol volatile under the rection conditions and capable of liberation by alcoholysis by the dehydro-3-methyl linalool, which comprises heating the mixture at a temperature at which simultaneous alcoholysis of the aceto acetic ester and the molecular rearrangement accompanied by decarboxylation of the ester resulting from the alcoholysis occur, the aceto acetic ester used being in such an excess that a substantially complete conversion of the dehydro-3-methyl linalool is ensured, and separating the mixture of pseudo-irones thereby formed from the other reaction products by distillation.  The process allows 9-allyl and 11-allyl pseudo irones to be obtained in improved yield. The substituted pseudo-irones on cyclization yield the corresponding irones.  In examples: (1) dehydro 3-methyl linalool and ethyl a -methyl aceto acetate (3 mols.) are heated together at 180 DEG  C. and when evolution of CO2 and ethyl alcohol has ceased, the mixture is distilled under reduced pressure to remove excess aceto acetate and then a stereo isomeric mixture of 9-methyl pseudoirones which may be cyclised by the method of Specification 666,881 yielding a mixture of 22-methyl irones; (2) ethyl-a -n-propyl acetoacetate is reacted similarly yielding stereoisomeric 9-n-propyl pseudoirones which are cyclised by means of phosphoric acid to the 22-n-propyl irones; (3) ethyl n-pentenoyl acetate is reacted in the same manner yielding stereoisomeric 11-allyl pseudoirones which on cyclisation as in (1) are converted into 24-allyl irones. Specifications 762,656 and 803,364 also are referred to.
Patent GB-349616-A (GB)
Title: Improvements in or relating to healds for loom weaving and in heald knitting machines for producing same
IPC: D03C9/02
Filed: 1930-03-01
Abstract: 349,616. Making loom healds. PEACE, W. P., 49, Commercial Street, Huddersfield. March 1, 1930, Nos. 6801 and 23942. [Class 142 (i).] Mail-heald knitting machines are constructed to provide for advance of the rig-bands relatively to the flys beyond the normal amount of feed during each lapping or binding operation, for the purpose of forming healds having their individual threads closer together, as shown in Fig. 8. In one construction, in which arrangement is made for the fly devices to be advanced and retracted, the machine comprises the usual shafts a, Fig. 2, revolvably mounted in slide brackets a<1> and adapted to operate flys b through gearing a2, e, each fly b, Fig. 4, with its lapping bobbin x and thread guide z, being loosely mounted on a hollow spindle c which is reciprocated in parts a3, d, of the bracket a<1> by means of its connection, through a block f and adjustable connecting rod y, with a crank disc h on a shaft j driven by chain and sprocket means from the main shaft m. The spindle c, which is formed with a central bore to accommodate the rig-band R, is prevented from turning by the engagement of a square or otherwise shaped tail-piece c<1> with a correspondingly shaped part of the bracket d. An arm u, pivotally supported by an adjustable collar u<2> on the spindle c, is operated by a cam v on the shaft a to engage the loops of the healds presented by carrying forks o and retain them in slots s, t of the fly and spindle respectively during the lapping operation, which takes place while the flys are being retracted and the forks are returning to the centre for a fresh loop. The rigbands R are fed forward continuously by the usual fence device, and the flys, in their forward movement, are advanced at the same speed. In a modified arrangement, the flys are rotatably, but not slidably, mounted on the brackets a<1>, and the rigbands are fed forward at double the normal speed during the lapping operation, the feed being stopped while the forks o are carrying the heald thread loops to the flys on each side of the machine.
Patent GB-1475977-A (GB)
Title: Pliers of plastics material
IPC: B25B7/00
Filed: 1976-02-20
Abstract: 1475977 Pliers G YGFORS 20 Feb 1976 [25 Feb 1975] 06871/76 Heading B4W Pliers of plastics material have jaws 1, 3 formed so that on closure they abut at the outer extremities first and on application of increased clamping pressure to the handles they abut progressively till shoulders 12, 13 on the handles abut each other, at which point engagement of the jaws is substantially complete. The jaws may have metallic gripping elements (16 ... 19, Figs. 5-8, not shown) secured thereto, e.g. by heat and by edge portions bent round the edges of the jaws, the elements being shaped for picking up particular components. A resilient strip of plastics (8, Fig. 1, not shown) interconnects the outer ends of the handles to bias the handles and jaws apart.
Patent GB-434596-A (GB)
Title: Vulcanization accelerators and their application
IPC: C08K5/00
Filed: 1934-03-05
Abstract: A 2-mercaptoarylthiazole is reacted with a halogenated ketone of the general formula: R.CHX.COR<1>, wherein X stands for a halogen atom and R and R<1> stand for alkyl groups.  Suitable ketones are 2-chlorbutanone-3, 2-chlorpentanone-3 and 3-chloropentanone-2, and the 2-mercaptoarylthiazoles include products substituted, for example, by alkyl, aralkyl, aryl or halogen, in the aryl nucleus. Organic media suitable for the reaction include alcohol benzene, acetone, and carbon tetrachloride.  The products are liquids easily dispersed in rubber, and by virtue of the ease with which they are hydrolyzed, they act as powerful accelerators.  In examples 2-mercaptobenzthiazole is condensed with 2-chlorobutanone-3, 3-chloropentanone-2 and 2-chloropentanone-3 and details illustrating the accelerating properties of these compounds in a rubber mix are also given.  Specification 360,491 is referred to.ALSO:Liquid vulcanization accelerators easily dispersed in rubber are prepared by reacting a 2-mercaptoarylthiazole with a ketone of the general formula: R.CHX.COR1, wherein X stands for a halogen atom and R and R1 stand for alkyl groups.  The 2-mercaptoarylthiazoles include products containing substituents in the aryl nucleus for example alkyl, aryl, aralkyl or halogen. The products by virtue of the ease with which they are hydrolyzed are powerful accelerators.  Details are given illustrating the accelerating action in a rubber mix of the condensation products of 2 - mercaptobenzthiazole with 2 - chlorobutanone-3, 3-chloropentanone-2 and 2-chloropentanone-3. Specification 360,491 is referred to.
Patent GB-724445-A (GB)
Title: Method of and apparatus for shaping hollow metal bodies
IPC: B21D7/024
Filed: 1953-03-13
Abstract: 724,445. Angular bending. HUET, A., and COMPAGNIE DES SURCHAUFFEURS. March 13, 1953, No. 6977/53. Addition to 680,411. Classes 83 (2) and 83 (4). In the method of bending tubes set forth in the parent Specification the deforming of the tube to reduce its moment of inertia and the bending operation are combined in a single operation. The groove b of the bending former 6 is of ovoid section. Rolls C press the tube, heated on the inside by a torch i, into the groove b. The bending is then effected by rotation of the former.
Patent GB-910525-A (GB)
Title: Improved venting closure for sealing a receptacle
IPC: B65D53/04
Filed: 1959-02-27
Abstract: 910,525. Venting containers. PATTON, F.S. Feb. 27, 1959 [Nov. 28, 1958], No. 6999/59. Class 125(3). A closure for relieving excessive pressure in a container comprises a screw cap 13 inside which is a resilient seal 17 having grooves 20 which are compressed between the cap and the container to form a seal but which are reopened by an excessive pressure inside the container, The seal is either a disc or a ring and has parallel grooves formed on the side facing the container which are spaced either equally or closer together towards the centre of the seal or extend over only a part of the seal.
Patent GB-230858-A (GB)
Title: An improved vehicle for colouring matters and graphite, and process of making the same
IPC: C09D195/00
Filed: 1925-03-16
Abstract: 230,858. Lange, V., (Assignee of Lange, H.). March 14, 1924, [Convention date]. Emulsions, making.-A vehicle for pigments and graphite is made by boiling together an aqueous solution of sugar, molasses, or syrup and a solution of pitch, asphaltum, rubber, balata, guttapercha, or the like in a solvent such as benzine, carbon tetrachloride, or benzol, and skimming the liquor. Specification 230,859, [Class 140, Waterproof &c. fabrics], is referred to.
Patent GB-145127-A (GB)
Title: Improvements in or relating to floats and landing-wheels for hydroaeroplanes
IPC: B64C35/00
Filed: 1919-03-21
Abstract: 145,127. Fairey Aviation Co., and Fairey, C. R. March 21, 1919. Shock of landing, deadening; land wheels. -A hydro-aeroplane in which land wheels are adapted to be withdrawn into a downwardly opening well, has each land wheel mounted in a frame resiliently connected to a pivoted arm having a spring bolt adapted to lock the arm in the landing position. Fig. 1 shows a wheel carried by a spindle 2 between two triangular frames 3 which are connected together by transverse members 4, 9, the member 4 being mounted iu bearings on the float frame. The transverse member 9 is connected by a rubber spring 31 to an arm 6 pivoted about the member 4 and provided with a spring bolt 7 adapted to engage a hole in a plate 8 secured to the float frame. A pin 22 on the bolt is engaged by a cam slot 21 in a plate 20 pivoted to the arm 6 and connected by cords 19, 25 to an operating lever 18. Movement of the operating-lever 18 in one direction first withdraws the bolt and then turns the frames 3 into the position shown in dotted lines. Hinged doors 26 normally held open by the spindle 2 are closed by rubber springs 28 when the wheel is withdrawn into the float. Lateral stresses on the wheel may be taken by guide plates 15 bearing against plates on the ends of the spindle 2 or by diagonal stays extending from the ends of the spindle 2 to extensions of the member 4. According to the Provisional Specification, the wheel spindle is held between pairs of arms arranged one above the other and rotatably mounted on a transverse shaft, the free ends of the arm being connected by rubber bands. The lower arm of each pair is engaged by a detent connected to cranks on the shaft about which the arms are pivoted. A drum on the shaft is connected by an endless wire to a similar drum operable by the pilot so that the shaft can be turned. The initial movement of the shaft releases the detents and further movement raises the arms into the well in the float. A sliding door closes the opening in the float. Two wheels may be mounted on each spindle.
Patent GB-589956-A (GB)
Title: Improvements in or relating to permanent hair waving
IPC: D06M13/252
Filed: 1942-05-26
Abstract: An aqueous preparation containing a mercaptan having a pH value greater than 7 and less than 10 is used for the treatment of hair or other keratin fibres as a preliminary to or during a waving, de-kinking or other shaping treatment.  The mercaptan advantageously carries substituents which render it monmalodorous and non-toxic and such substituents may be (a) acidic polar atoms or groups, e.g. halogen atoms or carboxylic, sulphonic, nitro or sulphato groups, (b) basic polar groups, e.g. amino or imino groups, or (c) non-polar groups, e.g. hydroxyl, aldehyde, ketone, carboxylic ester or ether groups.  Specified mercaptans are ethyl and benzyl mercaptans, thioglycollic acid, mercaptoethylsulphonic acid, b -aminoethyl mercaptan and its N-methyl and N-dimethyl derivatives, b -mercaptoacetone, mercaptoethyl acetate, b -mercaptoethyl ethyl ether, 3-amino-2-hydroxypropyl mercaptan, thioglycerols, trithiohexitols, di-, tri- and tetra - glycol dimercaptans, mercaptoethyloxyethylamine, trimercaptoethylamine, mono-, di- and poly-thiohydroxy acids, mercapto-di- and poly-carboxylic acids, mono-, di- and tri-thiomucic acids, mono- and dimercaptosuccinic acids, thiocitric acid, mercaptoamino acids, the a -mercaptomethyl derivatives of furane, thiophene, pyrrole and pyrimidine, thiofurfuryl alcohol, mercaptoalkyl-ureas, thioureas and isothioureas, mercaptoethylurethane, mercaptoethyl-acetamide, mercaptoethyl-guanidine and mercaptoalkyl-betaines and taurines. The pH of the mercaptan solution is adjusted to within the range 7.0-10.0, e.g. by addition of ammonia, methylamine or ethylamine. The mercaptan is subsequently removed from the hair &c. by rinsing with water, containing in some cases sodium hypochlorite, chlorine, hydrogen peroxide or tartaric acid.  Mercaptoethylhydroxyethylamine is made by reacting diethanolamine with mercaptoethylamine, or by the action of sodium hydrosulphide on Cl-CH2.CH2.NH.CH2.CH2.OH. Thiocitric acid is prepared by treating citric acid with dry hydrochloric acid and then with sodium hydrosulphide.  a -Mercaptomethyl-furane is prepared by treating furfuryl bromide with sodium hydrosulphide.  Mercaptoalkyl ureas are prepared by the action of sodium hydrosulphide on a bromalkyl urea, which is itself made from the isocyanate of the alkanolamine.  Mercaptoalkyl thioureas are prepared by treating a bromoalkyl thiourea with sodium hydrosulphide. Alpha-hydroxy-thiophene is prepared by the action of formaldehyde on the Grignard reagent from alpha bromo thiophene.  Mercapto ethylsulphonic acid is prepared by oxidizing OH.CH2.CH2.SH to OH.CH3.CH2. SO3H, treatment with bromine and then with sodium hydrosulphide.
Patent GB-691432-A (GB)
Title: Thiosemicarbazones
Filed: 1951-03-27
Abstract: The invention comprises thiosemicarbazones of derivatives of benzalacetone substituted in the benzene nucleus by halogen, amino, acylamino, alkylamino, hydroxy, alkoxy, aryloxy, acyloxy and nitro groups, obtainable in the usual manner by the action of thiosemicarbazide on the corresponding ketones in presence, if necessary, of catalysts.  Exchange of substituents may be effected in pre-formed thiosemicarbazones.  Examples describe the preparation of the following substitution derivatives of benzalacetone thiosemicarbazone, viz. the 4-methoxy, 4-allyloxy-, 4-acetamino-, p-chloro-, m-methoxy-, p-nitro-, p-phenoxy-, p-dimethylamino-o-hydroxy-, p-amino- (and the thio-diglycol derivative thereof), and p-acetoxy-derivatives.
Patent GB-1298151-A (GB)
Title: Flotation of sulfide ores
Inventor: HARRIS GUY HENDRICKSON
IPC: B03D1/012
Filed: 1970-02-13
Abstract: 1298151 Flotation agents for sulphide ores DOW CHEMICAL CO 13 Feb 1970 [13 Feb 1969] 7156/70 Heading B2H [Also in Division C2] Sulphide ores (e.g. those of Cu, Zn or Mo) in pulp form are subjected to flotation conditions in the presence of a flotation collector compound of the formula wherein R 1  is a C 1-10  alkylene group; R 2  is a hydrocarbyl group, other than an aryl group wherein an atom in the ring structure is directly bonded to Y; Y is S or O; A is either a radical of formula wherein R 3  is H or C 1-7  alkyl; R and R' are C 1-7  alkyl, alkenyl, cycloalkyl or cycloalkenyl: X and X' are S or O; if X and X' are both O, R and R' may differ; if X and X' are both S, R and R' are identical; if X and X' differ, R and R' may differ; or, A is a radical of formula wherein X and X' are idependently O or S; R and R' are independently H or C 1-5  alkyl and R 3  is H or C 1-7  alkyl.