baber/WOPTO huggingface dataset:
Patent GB-725783-A (GB)
Title: Improvements relating to continuous furnaces of the pusher type
IPC: C21D9/70
Filed: 1953-10-05
Abstract: 725,783. Continuous metal-heating furnaces. STAHLUND ROHRENWERK REISHOLZ GES. Oct. 5, 1953 [Oct. 16, 1952], No. 27284/53. Class 51 (2). In a continuous metal-heating furnace of the pusher type, even heating of the ingots 3 is ensured by allowing them to tip off the stepped end 8 of a main hearth 2 on to an equalizing hearth 5, which is mounted on wheels and reciprocated under the projection 7 in such a manner that the length of its stroke is greater than the space taken up by an ingot. The furnace is heated by burners 4 disposed oppositely to the direction of movement of the ingots. Use of the equalizing 'hearth results in the ingots being pushed by the projection 7 into the proper position at the discharge door 9 of the furnace at the end of each stroke.
Patent GB-873270-A (GB)
Title: Improvements in or relating to aerials
Inventor: KILLEEN JOHN ROY
IPC: H01Q9/44
Filed: 1958-08-26
Abstract: 873,270. Aerials. LABGEAR Ltd. Aug. 18, 1959 [Aug. 26, 1958], No. 27347/58. Class 40(7) A wide-band aerial is designed to operate as a travelling-wave aerial for signals of a wavelength not greater than the length of either of the two members forming its radiating elements. These members are arranged in V formation and they are so dimensioned, and the angle between them so chosen, that when functioning in travelling- wave mode the characteristic impedance between their outer (spaced apart) ends is substantially that of free space. The members are supported, and a feeder connected to them, in an insulator at the apex of the V. In an embodiment intended for operation over a range of 40 to 220 megacycles/sec. travelling-wave operation in accordance with the invention takes place over the upper part of the frequency range. The angle between the members 1 is made 90 degrees and they are supported in an insulator 2 and extend to a length of 6 feet 2 inches. It is stated that the ratio between the length and diameter of the members should be of the order of 20:1 but in order to avoid the use of large diameter tubes it is preferred to use two half-inch tubes for each element. These are arranged fan-wise as shown with a maximum separation of thirteen inches. Shorting clamps 3 connect the tubes forming each member. The wide-band width given to the aerial when functioning in resonant or semi-resonant manner by the fan arranged elements is stated to enable signals to be handled from the frequency at which the aerial resonates as a half-wave dipole up to frequencies of travelling-wave operation. The aerial is substantially unidirectional in travelling-wave mode but requires a reflector to make it unidirectional in resonant mode. The reflector may either be a straight element or one constructed in similar manner to the aerial (Figs. 2 and 3, not shown).
Patent GB-1094939-A (GB)
Title: An operator for an electric limit switch
IPC: H01H21/28
Filed: 1965-06-29
Abstract: 1,094,939. Actuating devices for switches; retractive switches. SQUARE D CO. June 29, 1965 [July 10, 1964], No. 27404/65. Heading H2B. An operator 24 for an electric limit switch comprises a housing mountable on an end of an enclosure containing the switch and having a cavity 70 and a pair of axially aligned bores 77, 79, a rotatable shaft 80 journalled in the bores, a pair of identical members 84, 85 non-rotatably mounted on shaft 80, a stop on each member engaging with a portion 87, 88 of the housing to limit the rotation of each member in one direction, a camming surface on each member to engage a movable plunger extending from the end of the enclosure and a resilient arrangement to resiliently maintain at least one of the members 84, 85 in the stop position. A double-ended actuating member (83) is mounted on the knurled end of shaft 80. The stops on members 84, 85 comprise flat edge surfaces (84s, 84t, 85s, 85t) and the camming surfaces comprise edges (84x, 85x). There may be a number of plungers (54) fitting in the appropriate holes (30-33) of the enclosure depending on whether operator 24 is mounted with member (83) facing the front, rear, or either side of the enclosure, the plungers bearing on a common plate (51) bearing on the actuator (50) of the switch (49), details of the switch not being given. The resilient arrangement comprises a compression spring around shaft 80 bearing on a retainer at each end for balls (95), which, when shaft 80 is rotated, ride over ridges (84f, 84g, 85f, 85g) to give a snap action and retain members 84, 85 in position.
Patent GB-1439143-A (GB)
IPC: A23G9/32
Filed: 1972-06-12
Abstract: 1439143 Ice confections UNILEVER Ltd 11 June 1973 [12 June 1972] 27427/72 Heading A2B A composite ice confection comprises an ice zone having a cone penetrometer softness (as defined) of less than 20 and an adjacent zone of a non-aerated edible fat dispersion comprising 3 to 60% fat and 97 to 40% of an aqueous sugar syrup, the fat forming the dispersed phase, and the dispersion having a cone penetrometer softness greater than 30. Preferably the aqueous phase in the ice zone contains less than 25% sugar, and that in the fat dispersion contains 40 to 75% sugar. The fat dispersion preferably contains non-dosing fat e.g. cocoa butter, borneo tallow, illipe butter, shea butter, hardened coconut, palm kernel, cotton seed, groundnut, palm, sunflower seed, sesame, corn, soybean safflower or rapeseed oil, or hardened whale or fish oil. The sugar may be glucose, fructose or invert sugar. The dispersion may include a hydrophilic emulsifier, e.g. cocoa protein. In the composite product the ice zone may surround the dispersion, or vice versa, or the dispersion may be formed as a ripple in the ice zone. The product may be extruded. The ice zone may be ice cream or water ice, a stick may be inserted to form an ice lolly.
Patent GB-924427-A (GB)
Title: Improvements relating to cis-1,4-polybutadiene
IPC: C08F136/06
Filed: 1960-07-29
Abstract: Cis-1,4-polybutadiene of controlled molecular weight is obtained by polymerizing butadiene with a catalyst comprising a dialkyl aluminium monohalide, and a compound of a metal of Group VIII of the Periodic Table according to Mendel<\>aeeff, in the presence of a solvent mixture comprising at least one aromatic and at least one aliphatic hydrocarbon, and controlling the average molecular weight of the polymer by increasing the volume ratio between the aromatic and aliphatic hydrocarbons in the mixture. The aliphatic hydrocarbon may be butane, pentane, petroleum ether, heptane, or iso-octane.  The aromatic hydrocarbon may be benzene, or toluene.  The catalysts exemplified are diethyl aluminium chloride admixed with nickel or cobalt diacetylacetonate.
Patent GB-262736-A (GB)
Title: Improvements in pectin preparations and manufacture of preserves and jellies
IPC: A23L29/231
Filed: 1926-11-03
Abstract: 262,736. Douglas Pectin Corporation, (Assignees of Loesch, H. G.). Dec. 10, 1925, [Convention date]. Jam ; fruit jelly; table jellies.-A pectin preparation containing solid pectin suspended in a liquid medium, such as alcohol, glycerine, or sugar syrup, in which it is insoluble but which readily dissolves on dilution with water, is employed in making jams and jellies. In use, the preparation is diluted with water and heated in the presence of added sugar and sufficient acid, such as lactic, tartaric, citric or malic, to ensure jellification. Using a dry powdered pectin prepared by alcohol precipitation from a pectin concentrate, the pectin is practically insoluble in a 58 per cent sugar solution, but by adding organic acids insolubility is reached at a lower concentration of sugar. By adding 0.2 per cent of an acid, such as tartaric acid a 40 per cent sugar solution may be used, and by adding 0.6 per cent of acid, a 30 per cent sugar solution. A suitable solution is a saturated sugar solution of about 67 per cent strength which also acts as a preservative. To produce jellification in the finished product its acid content must be at least 0.15 per cent, and is preferably 0.25, per cent. By varying the proportions of pectin and syrup. the consistency of the preparation may be varied from paste to liquid form. Flavouring and colouring material may be mixed with the preparation to form a homogenous product. The unflavoured material may be added to fruit juice or crushed fruit and sugar then added to make jams or jellies. The preparation may be pasteurized. Specification 19192/13 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the preparation of pectin suspensions in solutions of dextrose, invert sugar, or a mixture of sugars, and in sugar containing fruit juices which are cencentrated or have sufficient sugar added to form a syrup in which the pectin is insoluble. This subjectmatter does not appear in the Specification as accepted.
Patent GB-480029-A (GB)
Title: Improvements in and relating to locks or latches for drawers and the like
IPC: E05C1/08
Filed: 1936-10-10
Abstract: 480,029. Drawer &c. fastenings. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and BICKERS, H. J. Oct. 10, 1936, No. 27529. [Class 44] A fastening particularly for the drawers of steel filing cabinets comprises a hook catch c for each drawer, the catches being slidably mounted on a channel or frame member a, each catch having a pair of lugs e bearing against one face of, and a pair of lugs d passed through a slot b in, said member. The lower lug d is initially spaced away from the lower lug e as shown in Fig. 1 to facilitate insertion through the slot. The lower lug d is then pressed in to bear against the channel member a, Fig. 5, and the upper lug d is bent laterally, Fig. 4, to prevent withdrawal from the slot. Each catch engages automatically under action of a spring f anchored in a slot d<1> in the lower lug d, and to a tongue g struck up from member a. The catches are released by sliding member a upwards.
Patent GB-1085990-A (GB)
Title: Improvements in and relating to metal enclosed switching units
Inventor: GIBSON ARTHUR CHARLES
IPC: H01H33/666
Filed: 1965-06-29
Abstract: 1,085,990. Switchgear structures. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 20, 1966 [June 29, 1965], No. 27530/65. Heading H2B. A metal enclosed switching unit utilizing vacuum switches 32 has first and second switch sets S1 and S2 respectively (see also Fig. 1, not shown) inserted in two sections of a ring main (2) which sections supply power to a spur circuit (8) and are effective to connect and disconnect the spur circuit from either or both sections of the ring main. A further switch set S3 is effective to isolate the spur circuit (8) from the ring main when open-circuited, this set S3 including vacuum switches as in Specification 997,126 and being operated by a handle 18. Each set S1 or S2 of vacuum switches such as 32 is operated by a handle 45 and actuator mechanism comprising linkages 44 and a spring. An earthing switch 48 has interlocking means (not shown) permitting closure only when vacuum switch 32 is open and a removable earth link 54 is contacting an earthing/test terminal 50, the switch 48 being a knife switch operable via linkages 56 and a handle 60. The upper ends 36 of the vacuum switches 32 are connected by bus-bars 40 to switch set S3.
Patent GB-500892-A (GB)
Title: Improvements in and relating to apparatus for measuring the opacity of a liquid
IPC: G01N21/29
Filed: 1937-10-11
Abstract: 500,892. Photometric apparatus. YACCO, S. A. F. Oct. 11, 1937, Nos. 27615 and 27616. Convention dates, Oct. 16, 1936 and Aug. 11, 1937. [Class 97 (i)] In apparatus for measuring the opacity of a liquid, in which a mark is observed through a variable thickness of the liquid and the thickness which is just sufficient to obscure the mark is determined, the mark is disposed on the foremost surface, visible to the observer, of the rear wall of the liquid receptacle. The apparatus is particularly intended for measuring the opacity of lubricating oil. Fig. 2 shows a form in which the liquid is contained in a wedge-shaped space between a glass plate 3 and the base'of a groove 2 formed in a metal plate 1 against which the plate 3 is held by a spring-urged stirrup 5. The marks to be observed through the liquid are formed on the plate 1, and consist of a number of lines 8 with which graduations may be associated. The stirrup 5 can be rotated about a pivot 20 to enable the apparatus to be dismantled for cleaning &c. In Fig. 5, the liquid is contained in the space between the plane upper surface of the plate 1 and the convex lower surface of a lens 3 which is held against the plate by a screw cap 17 and packing ring 25. The marks 8 consist of concentric circles on the plate 1. Connection 18, 19 are provided to enable the instrument to be inserted in an oil-circulation system, such as that of a motor-vehicle engine, the instrument then being mounted on the instrument-board of the vehicle. Fig. 13 shows a form in which the liquid is contained in the space between the plane lower surface of a plano-convex lens 3<1> and the plane upper surface of the member 1. The lens is mounted in a support 30 which screws on to the base 55 so that the thickness of the liquid layer can be varied by rotating the support. The rotational position of the support 30 is indicated on a scale. A single mark 8, which may be an arrow, is provided on the member 1. The lens 3<1> serves to concentrate light from a source 36 on the liquid.
Patent GB-616644-A (GB)
Title: Improvements in electric welding apparatus
IPC: B23K11/18
Filed: 1946-09-16
Abstract: 616,644. Electric welding. WILLIAMS, B. H. LEPINE-. Sept. 16, 1946, No. 27685. [Class 83 (iv)] In electric butt &c. welding a limit switch i operated by the movable table f at the end of the weld stroke controls an electronic or like timer-circuit k to open the work clamps a, b after a preset interval and separate the tables e, f. The timer k may operate electromagnetic &c. valves l, m controlling the pressure fluid or other clamp and table operating means. Push-button controls o, p are provided and current is supplied from a transformer n. The clamps a, b may hold aluminium parts or electrodes c, d.
Patent GB-884135-A (GB)
Title: Machine for registering stereotype colour mats
IPC: B41D1/00
Filed: 1959-08-13
Abstract: 884,135. Printing-surfaces. KNIGHT NEWSPAPERS Inc. Aug. 13, 1959, No. 27699/59. Class 100(2) A registering device for matrices to be used in casting stereotype printing plates, especially for multi-colour printing, comprises a bed 22 for maintaining the matrix 20 in flat condition while a scriber 198 is used to mark, along the edges of a clamping frame 70, a cutting line 202, Fig. 6 (not shown); The bed 22, Fig. 1, has apertures 84 connected to a vacuum chamber 88 connected by a pipe 98 to a pump 102. The frame 70 has side and rear bars 64 and 66 respectively and is raised to release the matrix by push rods 74 engaging cam-shafts 40 to release the matrix 20. The cam-shafts 40 are coupled by a chain 46, one cam-shaft being driven by a hand-crank, not shown. Registering needles 162 are swung inwardly from the broken line position to the full line position and adjusted to coincide with register marks 188, Fig. 6, (not shown) on the matrix 20, Fig. 1, clamped by the frame 70. Blocks 144 carrying the needles 162 are adjustably clamped to a rod 140, while brackets 130 are adjustably clamped to a shaft 124. The matrix 20 is then removed after marking the cutting line and a further matrix placed on the table 22 and registered by marks 192, Fig. 7 (not shown) which are made to coincide with the previously set needles 162, Fig. 2, prior to forming a cutting line around the matrix. Subsequent matrices are registered for forming cutting lines in the same manner.
Patent GB-1337189-A (GB)
Title: Remote meter reading systems
IPC: G01D4/00
Filed: 1971-06-14
Abstract: 1337189 Transponder systems SANGAMO ELECTRIC CO 14 June 1971 [10 July 1970] 27805/71 Heading H4L [Also in Division G4] A remote meter reading system comprises a transponder arranged to provide data representing signals, which comprises input means for receiving input signals of a first frequency, non- linear impedance means coupled to said input means and operative to distort said input signals to generate related harmonic signals, and data means for providing information signals to modulate said harmonic signals prior to transmission to associated equipment. Meter reading system.-To read a utility meter, a mobile unit arrives in the vicinity and, by means of a directional radio aerial, transmits a particular frequency at a transponder associated with the meter, the transponder including a YAGI aerial having tuned directional transmit and receive sections linked by a varactor diode. Reception by the receive section of the particular frequency causes production in the transmit section of its second harmonic of amplitude determined by the value of a reverse bias applied to the varactor diode. The bias is controlled to have one of two values at any one time, under control of a serial word applied to it. The word consists of a start code and data consisting of a binary-coded meter identification and a binary-coded meter consumption count, each data bit being accompanied by a sync bit. Such words are produced from meter circuitry continuously but are only transmitted to the mobile unit in response to reception of the particular frequency. In the mobile unit, after reception by a directional aerial, the word is recorded on magnetic tape, optionally after temporary storage and/or conversion to ASCII code. Instead of recording the information may be retransmitted to a central station. A second embodiment has 8 meters per transponder and applies 5 successive words from each to the varactor diode before proceeding to the next.
Patent GB-1391508-A (GB)
Title: Pulsator units of milking machines
IPC: A01J5/12
Filed: 1972-06-14
Abstract: 1391508 Milking machines S E BODMIN 14 June 1972 [17 June 1971] 27899/72 Heading AIM In a pulsator for a milking machine a main vacuum chamber 2 has connectors to the constant vacuum line 4 and to the milk line conduits 3; a pulsator chamber 6 has connections to the pulsation conduits 7; an air-introducing chamber 8 is connected to the atmosphere via inlets 18 and a filter 17; and a pulsation control chamber 9 is separated from chamber 8 by a flexible diaphragm 10, spring biassed towards a suction cup 16 at the upper end of a plastics moulding 14 which can seal chamber 8 from chamber 6 at 23 or can seal chamber 6 from chamber 2 at 24 by means of a valve member 13. Operation Initially passageway 24 is open, passageway 23 closed, and the vacuum in chamber 2 is applied to the pulsation conduits 7. But the exhaustion of the pulsation control chamber 9 via piercings 15, 11 causes an upward movement of the diaphragm 10 under the action of atmospheric pressure in chamber 8. Passageway 23 thus opens, admitting air to the pulsation conduits 7. Moulding 14 reaches the end of its travel, closing passageway 24. At this point the suction cup 16 separates from the diaphragm 10, allowing the pressures in chambers 8 and 9 to equalize, and the spring 12 returns the appartus to the starting points. In a modification (Figure 2, not shown) passageway 23 is always open, but the valve 13 lies above the partition 27 separating chambers 2 and 6. Valve 13 thus separates chambers 2 and 6 in its lowest postion; in its uppermost position it reaches an abutment 28 to shut off chamber 8 from chamber 6. The operation of the modification is generally similar to that of the embodiment shown. The clearance at 20 and 21 controls the speed with which air is admitted to chamber 6 and thus the highest pressure applied to the outside of the teat cup inflations. The strength of spring 12 controls the relative times of application of atmosphere and vacuum in chamber 6. The speed of pulsation can be varied by adjusting the position of the valve member 13, which is screwed to the moulding 14.
Patent GB-1036036-A (GB)
Title: Improvements in or relating to spinnerets for melt-spinning
IPC: D01D4/02
Filed: 1964-07-07
Abstract: 1,036,036. Spinnerets for melt-spinning. SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONE VISCOSA S.p.A. July 7, 1964 [July 24, 1963], No. 27920/64. Heading B5B. The spinning orifices of spinnerets for melt-spinning are arranged in two straight or somewhat curved converging rows which include an angle whose bisecting line is parallel to the direction of the flow of cooling air which flow is in a direction transverse to the downward path of travel of the extruded filaments. The distance between any two adjacent holes in either row is such that the points of intersection of a line at right angles to the direction of flow of the cooling air and the two lines joining the centres of the orifices and parallel with the direction of flow of the cooling air are at least 1 mm. apart. The angle included between the two rows when they are produced to meet in the direction of convergence to form a V-shaped figure may be between 30 and 120 degrees and preferably between 45 and 80 degrees.
Patent GB-1388237-A (GB)
Title: Halogen-keto esters and process for their production
IPC: C07C69/716
Filed: 1973-06-12
Abstract: 1388237 γ-Halo-#-ketoesters FUJI PHOTO FILM CO Ltd 12 June 1973 [13 June 1972] 28005/73 Heading C2C γ-Halo-#-ketoesters of the general formula wherein R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, each represents an alkyl alkoxy or alkoxyalkyl group, or they are connected to each other to form a ring; R<SP>3</SP> is an alkyl or optionally substituted aryl group and X is a halogen atom, are prepared by halogenating a #-ketoester of general formula In the examples ethyl and n-butyl-α-bromoisobutyryl acetate, ethyl α-bromo-isohexyl acetate and ethyl-α-chloro-isobutyryl acetate are prepared. α - (N - morpholino)isobutyryl acetate is obtained by reacting α-bromo-isobutyryl acetate with morpholine. Colour coupler α - (α<SP>1</SP> - (N - morpholino) - isobutyryl] - 5 - [γ - (2,4 - di - tert - amylphenoxy)- butyramido] - 2 - chloroacetanilide is prepared by reacting α-(N-morpholino) isobutyryl acetate with 5 - [γ - (2,4 - di - tert - amylphenoxy)- butyramido]-2-chloroaniline.
Patent GB-445278-A (GB)
Title: Manufacture of 6-nitro- and 6-amino-2:3-hydroxynaphthoic acid
IPC: C07C205/60
Filed: 1934-10-02
Abstract: The nitro compound obtainable by mononitrating the diazo oxide from 1-amino-2 : 3-oxynaphthoic acid in concentrated sulphuric acid is treated with a reagent capable of eliminating the diazo group. 6-Nitro-2 : 3-oxynaphthoic acid may be so obtained, but if the elimination of the diazo group is effected with the aid of a strong reducing agent, in a proportion sufficient to provide at least about eight atoms of hydrogen per molecule of nitrodiazo compound, 6-amino-2 : 3-oxynaphthoic acid results; the latter compound is also obtainable by reducing 6-nitro-2 : 3-oxynaphthoic acid.  Examples are given of the production of the 6-nitro compound with the aid of the following reagents for eliminating the diazo group: (1) cuprous oxide; (2) titanous chloride; (3) sodium stannite; (4) formic acid and copper; other specified reagents are finely divided copper or zinc dust in an aqueous alkaline medium, ferrous chloride in suspension in alcohol or glacial acetic acid, aluminium bronze in sulphuric acid, and also hydroxylamine, hydrazine or an alcoholic suspension of phenylhydrazine.  Examples are given also of the production of the 6-amino compound from the nitrodiazo compound with the aid of the following reducing and diazoeliminating agents: (1) aqueous sodium sulphide; (2) stannous chloride and hydrochloric acid; (3) alkaline sodium hydrosulphite; other reagents which are also suitable, when used in sufficient proportion, are sodium stannite, titanous chloride, and zinc dust in an alkaline medium.  An example is given also of the reduction of the 6-nitro compound to the 6-amino compound with zinc and caustic soda.  The N-acetyl and N-benzoyl derivatives of the 6-amino compound are described. Specification 326,971, [Class 2 (iii)], is referred to.