baber/WOPTO huggingface dataset:
Patent GB-960416-A (GB)
Title: Improvements relating to the printing of thick fabrics and to stencil-printing apparatus
Inventor: LECKIE THOMAS LIDDLE
IPC: B41F15/08
Filed: 1960-02-03
Abstract: 960,416. Stencil-printing machines. BRADFORD DYERS' ASSOCIATION Ltd. Jan. 26, 1961 [Feb. 3, 1960], No. 3880/60. Heading B6C. In an eight station step-by-step carpet printing machine having a brushing frame 1, Fig. 1, entry station 6, perforated support 5 with associated screens, colour boxes, endless chains and driving and operating mechanisms, and a take-off station 7-all as described in Specification 960,414-the perforated support for the carpet beneath each screen S, Fig. 7, forms the top of a suction box SB which is evacuated by a fan having a discharge pipe for directing the evacuated air either to atmosphere or back to the box. The screens S and colour boxes CB are lifted differentially as is described in Specification 960,415 to lift each screen further than its colour box whilst each suction box has a circular mouth 100 joined to the suction side of a motor-driven centrifugal fan F. The discharge-outlet 101 of each fan is connected to a pipe 102 that contains a butterfly valve 103 which may be adjusted through chains 104, 105 passing respectively over sprockets 106, 107, Fig. 6, on a shaft 108, the chain 105 passing also over a sprocket 109 which may be turned by a hand wheel 110. The pipe 102 discharges air from the fan into a box 111, the top of which opens into the suction box. The box 111 has a valve-controlled opening to atmosphere. Directional control of the air is effected by a flap 112 actuated in accordance with the printing operations of the machine from an hydraulic ram 27 through a crank 117, shaft 115, crank 114 and a pivoted linkage 113. Valve-controlled openings 120 are made in the side of each fan casing opposite the side in communication with the suction box mouth 100. The valve controlling these openings is an apertured plate 121 mounted to turn in its own plate to bring apertures into or out of register with the openings 120 in the casing. This valve 121 is turned by a rod 122 connected to a further crank on the shaft 115. During printing the fan discharges to atmosphere through the box 111 and the openings 120 are closed so full suction is applied to the carpet. At the end of each printing operation the suction is destroyed and replaced by a slight positive pressure by changing the valves 112 and 121 so that the fan discharges into the box so as to circulate air in closed circuit, and a small amount of air enters this circuit from the atmosphere through the openings 120. An equivalent amount of air then flows upwards through the carpet. Each printing station has its own fan and suction box but means are provided for interconnecting one box to another or others through ducts 125 each controlled by a valve 126 mounted on a rod 127 turnable through a handle 128.
Patent GB-451509-A (GB)
Title: Process for the production of derivatives of androstenols
IPC: C07J1/00
Filed: 1935-02-06
Abstract: 17-Halogen androstenol compounds are prepared by subjecting to the action of halogenating agents androstendiol compounds in which the hydroxy group on the carbon atom 3 is replaced by a group which on hydrolysis is reconvertible into the hydroxy group, such as O-acyl, O-alkyl, or O-aryl.  Halogenating agents mentioned are phosphorus chlorides or bromides, and thionyl chloride, i.e. halogen compounds which contain besides the replaceable halogen atom an element or a group of atoms which is capable of combining with oxygen or the hydroxy group.  The halogenation is preferably effected in the presence of an organic solvent which is not affected by the halogenating agent.  In examples: (1) a carbon tetrachloride solution of androstendiol-3-acetate is treated with phosphorus pentachloride at 0 DEG  C.  After standing 12 hours the solution is poured into water and extracted with ether.  The etherial solution is evaporated and the product recrystallized from a mixture of acetone and methanol to yield pure 3-acetoxy-17-chloro-androstene; (2) a carbon tetrachloride solution of androstendiol-3 acetate is treated first with calcium carbonate and then with phosphorus pentabromide.  The reaction product is worked up as in example (1) to yield 3-acetoxy-17-bromo-androstene.
Patent GB-990672-A (GB)
Title: Improvements in method of pelletizing finely divided solid materials
IPC: B01J2/12
Filed: 1964-01-30
Abstract: 990,672. Granulating. KENNEDY VAN SAUN MFG & ENG CORPORATION. Jan. 30, 1964 [Feb. 1, 1963], No. 3977/64. Heading B5A. Powdered mineral material, e.g. dolomite, which contains a small percentage (2¢-5%) of an inorganic binder which forms a hydrate, is pelletized by adding water (about 15% by weight) to the material in a mixer 14 to form agglomerated lumps, crushing the lumps thus formed in a crusher 22 and passing the homogenized material through a screw conveyer 24 into a balling cone 26, in which additional water is added. The pellets formed in the cone roll out on to screen 50, the pellets of the required shape passing through the screen into shoot 52 and then into a drying oven 58, whilst the undersized and oversized pellets fall into shoots 54 and 56 respectively and are reintroduced into the crusher or cone. Other powdered mineral material may be the dust from drying or calcining Portland cement mixtures, lime, clay, fly ash or flue dust, and the binders may be dolomite quicklime, dolomite hydrate, high calcium quicklime, high calcium hydrate or other equivalent reactive hydratable calcined material. If the mineral material already contains the required amount of hydratable binder no additional binder need be added.
Patent GB-233790-A (GB)
Title: Bodies and vessels capable of moving in any fluid opposing resistance to their propulsion
IPC: B63B1/34
Filed: 1924-02-15
Abstract: 233,790. Chenet, J. P. L. Feb. 15, 1924. Resistance to propulsion, reducing.-The forward portion a of a submarine boat, or other body adapted to be propelled through a fluid, is provided with an open-ended cap b arranged so as to leave a channel between its inner wall and the surface of the body, and a fan or the propeller of the craft is located at the mouth of the cap. The arrangement is stated to prevent eddying of the fluid medium about the surface of the body. The cap b is held in position at the front by a cross frame c and at the rear by bars d. Modified forms of the cap are shown in Figs. 4 to 7. Reference has been directed by the Comptroller to Specifcations 3364/10, [Class 113 (ii), Ships &c., Kinds &c. of]; 15735/12, [Class 114, Ships &c., Propelling &c.] ; 3263/13 and 975/14, [both in Class 4, Aeronautics].
Patent GB-1106974-A (GB)
Title: Improvements in or relating to character recognition systems
Inventor: WEAVER JOHN ANTHONY
IPC: G06V30/164
Filed: 1964-01-30
Abstract: 1,106,974. Automatic character reading. MULLARD Ltd. 23 April, 1965 [30 Jan., 1964], No. 4086/64. Heading G4R. In character reading apparatus of the type in which the character is stored in a matrix as a pattern of binary signals the amount of noise is reduced by exploring a test area (e.g. of 3 x 3 matrix elements) around each element of a line in turn, designating the central element black if more than 5 of the 9 elements are black and white if more than 5 are white, entering the successive elements of the line in a store as designated black or white and, at the end of the line, replacing the original line with the stored line. The process is repeated several times until the stored pattern becomes stable. The invention is described in relation to the programmed computer system of Specification 1,106,972.
Patent GB-219890-A (GB)
Title: Improvements in or relating to the lubrication of bearings
IPC: F16C3/14
Filed: 1924-02-18
Abstract: 219,890. Napier & Son, Ltd., D., and Wilkinson, G. S. Feb. 18, 1924. Bearing members as separating chambers.-A hollow bearing member, such as a crank-pin A<1>, eccentrically mounted on a shaft, has oil ducts C<2> leading to the bearing surfaces partitioned from the interior by walls C<3> having passages E preferably nearer to the axis of rotation than the oil ducts. Oil enters the hollow crank-pin by passages A<2> and the solid impurities in the oil which are removed by centrifugal action are deposited on the inner walls of the crank-pin, the clean oil passing through the passages E to the ducts C<2>. As shown, the partitions C<3>, preferably, are formed in a sleeve C removably fitted in the crank-pin A<1>, the ends of which are closed by caps B.
Patent GB-549789-A (GB)
Title: Cross talk balancing
IPC: H04B3/34
Filed: 1942-03-28
Abstract: 549,789. Preventing inductive disturbance. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4179. Convention date, Oct. 23, 1940. [Class 40 (iv)] Balancing units for neutralizing the crosstalk between the pairs of a multi-core highfrequency cable comprise two coupling circuits, one consisting of a fixed resistance R in series with a differential condenser C1 and the other of an adjustable condenser C2. The latter condenser may also be differential, and it may have a fixed or adjustable low resistance R2 in series with it. The total unbalance between two pairs may be considered to be made up of conductance and capacity, and the dimensions of the elements of the balancing units are chosen in accordance with measurements on two typical pairs at a number of frequencies. The units are individually adjusted in the field with a single frequency applied to the sending end of one pair until the cross-talk in the other pair becomes a minimum. It is shown that at any given frequency the phase of the neutralizing current is independent of the setting of C1 and that this adjustment is practically unaffected by the adjustment of C2. The units may be installed on panels in the manner described in Specification 468,735.
Patent GB-1439725-A (GB)
Title: Method for checking the quality of a piezoelectric material
IPC: H01L41/22
Filed: 1974-01-30
Abstract: 1439725 Selecting piezoelectric crystals VESS ORDENA TBUDO KRAS ZNAM N I INST SINTEZA MINERAL SYRYA VNIISIMS 30 Jan 1974 04239/74 Heading H1E The quality factor (Q) of a piezoelectric material is assessed by measuring the frequency f at which the tangent of the loss angle (tan #) is a maximum. It is shown that such maxima occur at the same frequency in the curves of tan # versus f for different cuts of the same quartz crystal, and at different frequencies for different crystals. Moreover, a plot of log max against Q (measured) shows proportionality between these two factors and the plot serves as a calibration curve for assessment of Q. The measurements of tan # are made at constant temperature using a known bridge substitution method. It is stated that the method is also applicable to piezoceramics.
Patent GB-311841-A (GB)
Title: Improved kettles, saucepans, urns, and other similar utensils, used for boiling water or other liquid
IPC: A47J27/022
Filed: 1928-06-05
Abstract: 311,841. Birkinshaw, E. June 5, 1928. Urns.-The bottoms of urns and other liquid-heating vessels are formed with radial flutings A leading either to apertures B formed in a depending portion of the side wall of the vessel, as shown in Fig. 1, or to vertical channels or flutings formed in the side wall. Fig. 2 shows a detachable heat - retaining screen for use with the vessel, made of aluminium or other metal, and provided internally with baffles C forming spiral channels for the flame gases, the whole being pressed or shaped from a single piece of metal. The upper edge of the screen is preferably crimped inwardly as at D. The invention is shown as applied to a kettle. Specifications 201,850, 212,859, and 267,711, [all in Class 66, Hollow-ware], are referred to.
Patent GB-719097-A (GB)
Title: Improvements in or relating to hydrocarbon copolymers
IPC: C08F10/00
Filed: 1952-02-19
Abstract: Isoprene and isobutylene are copolymerized in the presence of a Friedel-Crafts polymerization catalyst at between 0 and -164 DEG C. (preferably -40 and -110 DEG C.) using a copolymerization feed comprising 100 parts iso utylene and 25 to 150 parts isoprene.  It is preferred that the isoprene is at least 96 and preferably 99 mole per cent. pure, and that the molecular weight of the product is between 20,000 and 100,000 and has a Wijs iodine number between 55 and 175. Specified catalysts are aluminium chloride, bromide, titanium tetrachloride, uranium chloride, the mixed chlorobromides of aluminium and titanium, the chloro-alkoxides of aluminium and zirconium chloride-organoether complexes.  The catalysts are used in solution in low-freezing solvents, e.g. methyl chloride or bromide, dichloromethane ethyl chloride, propane, butane, the pentanes and carbon disulphide.  The products may be vulcanized. Specification 719,098 is referred to.
Patent GB-860757-A (GB)
Title: Improvements in or relating to automatic process controllers
Inventor: FERNER VALENTIN
IPC: G05B11/50
Filed: 1957-02-11
Abstract: 860,757. Fluid-pressure servomotor-control systems. GERATE-UND REGLER-WERKE TELTOW VEB. Feb. 11, 1957, No. 4577/57. Class 135. An automatic process controller includes a member responsive to an input signal corresponding to the value of a controlled condition, a member rotatable in one or other direction by said input signal responsive member, and means operable by said rotatable member to generate an output signal, the rotatable member only being rotated to vary the output signal when the deviation of the input signal from a desired value is increasing but remaining stationary to cause the output signal to remain constant when the deviation of the input signal is decreasing. The input signal is fed to a bellows 2 which actuates a driving member 4 located between the left-hand ends of two pivoted levers 15, the other ends of which lie between two adjustable stops 13, 14. If the bellows 2 expands or contracts to move the driving member 4 from the set position one or other of the pawls 5, 6 is actuated to rotate the ratchet-wheel 7. When the driving member 4 is moving back to the set position the brake 8 holds the ratchet-wheel 7 stationary. The ratchet 7 controls a lever 10 which actuates a bleed valve 11 connected by a line 17 to a source of fluid pressure. The back pressure of the bleed valve 11 constitutes the output signal on the line 18 and is fed back to the bellows 12. The system may be used in association with a conventional single or compound action controller. In a modification, Fig. 2 (not shown), additional line connections and cocks are provided to allow the input signal to pass directly to the output line if desired.
Patent GB-920265-A (GB)
Title: Improvements in hydraulic positive displacement machines
Inventor: FIRTH DONALD
IPC: F01B3/00
Filed: 1960-02-09
Abstract: 920,265. Reciprocating pumps. COUNCIL FOR SCIENTIFIC & INDUSTRIAL RESEARCH. Feb. 3, 1961 [Feb. 9, 1960], No. 4621/60. Class 102(1). [Also in Group XXIX] A stationary valve plate 22, for a rotating- cylinder block pump and having arcuate inlet and outlet ports 20, 21 with which each cylinder port 104 registers alternately during rotation, is provided with bleed ducts through which each cylinder port 104 communicates with the inlet port 20 before ceasing to communicate with the outlet port 21 and with the outlet port before ceasing to communicate with the inlet port. thereby reducing or eliminating the formation of shock waves. In the embodiment shown in Fig. 3, the bleed ducts 108, 109 are formed as tapered grooves at both ends of ports 20, 21. In another embodiment, Fig. 4, bleed ports 115, 117 are provided at both ends of ports 20, 21 and communicate with ports 20, 21 through passages 113, 116 respectively. In a swash-plate pump or motor construction, Fig..1, the valve plate 22 floats between bearing surfaces 18, 29 on the cylinder block 8 and an end housing 2 and is radially located through a peg 25 by a screw-threaded rod 23 movable by a captive nut to angularly adjust the valve plate relative to a tiltable swash-plate 12 to vary the timing. Hydraulic balancing of the bearing surfaces of the valve plate is employed and limited radial float of the valve plate is controlled hydrostatically. Specifications 893,848 and 906,553 are referred to.
Patent GB-706596-A (GB)
Title: Improvements in or relating to sliding drawers for kitchen cabinets
Inventor: PRESTON WILFRED
IPC: A47B88/49
Filed: 1952-02-22
Abstract: 706,596. Kitchen cabinets. PRESTON & ROWLAND, Ltd. May 8, 1953 [Feb. 22. 1952], No. 4675/52. Classes 52(1) and 52(3) A kitchen cabinet having a slidably withdrawable work-surface g is provided with drawers h, h<SP>1</SP> carried by telescopic runners the intermediate slides m of which have attached flanges m<SP>1</SP>, m<SP>2</SP> engaging undercut grooves k, j in the drawer and housing, the end faces m<SP>3</SP>, m' of the fianges serving as stops.
Patent GB-776626-A (GB)
Title: Granulated material and method for producing same
IPC: B29B9/00
Filed: 1955-02-16
Abstract: A detergent composition, which may comprise salts of acid sulphate esters of fatty alcohols, arylalkylsulphonates, alkyl-sulphonates or secondary alkylsulphates with carboxy methyl-cellulose and mineral salts such as sodium carbonate, bircarbonate, sulphate, phosphate, pyrophosphate, polyphosphate or silicate, is mixed with 15 to 25 per cent by weight of water and extruded (see Group V) to form granules, which are then subjected to a radiant heat of e.g. 1000 DEG C. for 6 to 12 seconds to make the granules porous.  Sodium bircarbonate may be added as a blowing agent.
Patent GB-1299125-A (GB)
Title: Improvements in fluidised bed incinerators
Inventor: MUIRHEAD D R
IPC: F23C10/02
Filed: 1970-02-02
Abstract: 1299125 Incinerators POWER-GAS Ltd 19 April 1971 [2 Feb 1970] 4833/70 Heading F4B A fluidized bed incinerator 10 provided with a refuse charging opening 18 above a first bed region, and closable ash and incombustibles discharge openings 23 leading from a second bed region, is so fed with fluidizing air from pipes 17 through one or more air boxes 16 and with further air from pipes 24 that a circulation of the bed sand particles and the burning refuse, as shown by arrow 32, occurrs. Sand particles discharged from openings 23 are separated from the ash and incombustibles by screen 29 and returned to the bed in conveyer 30, chute 28 and gas space 21. The fluidizing air is distributed through an upper perforated plate 14, which may be inclined, and a lower horizontal perforated plate 15 which has a fine stainless steel mesh spot welded to its underside. A refuse shredder may be provided adjacent opening 18.
Patent GB-412687-A (GB)
Title: Moisture-proof material
IPC: C08J7/052
Filed: 1933-02-17
Abstract: A composition adapted when in solution to be applied as a transparent, waterproof lacquer or cast to form films consists of a cellulose derivative, a wax and a plasticizer, the composition being free from castor oil, gum or resin and the wax being present in an amount from 1 per cent to less than 2 per cent. Preferably, the composition is used for coating transparent films of regenerated cellulose, cellulose esters or ethers, gelatine or casein, to produce a waterproof, transparent wrapping material which can be heat sealed at 100 to 160 DEG  C.  The plasticizer, which is present in relatively large amounts, 25 to 50 per cent, is of high boiling point and may be dibutyl, diamyl, cyclohexyl, or diphenyl phthalate, triphenyl or tricresyl phosphate.  The cellulose derivative for example cellulose nitrate or acetate and ethyl or benzyl cellulose constitutes 50 to 75 per cent of the composition.  The wax employed has preferably a high melting point and may be a mineral wax, e.g. paraffin, ozokerite or ceresine, an animal wax, e.g. beeswax or spermaceti, or a vegetable wax such as candelila or palm wax; the waxes may be used alone or in mixture.  As solvent, a mixture of ethyl and butyl acetate with toluene may be used.  Specifications 283,109, [Class 140], and 380,832 are referred to.  Reference has been directed by the Comptroller to Specifications 309,017, 318,166, 335,775, [all in Class 95], and 391,299, [Group VIII].
Patent GB-156015-A (GB)
Title: Improvements in the manufacture of chairs or other articles of furniture from ply-wood
IPC: A47C5/14
Filed: 1920-02-18
Abstract: 156,015. Morandi, G. Feb. 18, 1920. Frames.-Chairs and other articles of furniture that are subjected to strains are constructed entirely of ply wood, the ply wood of each part being simultaneously built up and bent to the required shape. A chair is constructed by forming each of the flanks a in a single piece and likewise the back members b, c and the bracing members d, e.
Patent GB-907183-A (GB)
Title: Improvements in the production of cyclododecanone
Filed: 1961-02-10
Abstract: Cyclododecanone is prepared by reacting cyclododecene with a strong acid of 70 to 100% by weight concentration, the amount of acid being such that the weight ratio of cyclododecene to acid is 2 : 1 to 1 : 10, hydrolysing the resulting ester to p  cyclododecanol and dehydrogenating the cyclododecanol.  The acid, such as sulphuric, phosphoric, formic or trichloracetic acid, is preferably reacted with the olefin at about +5 to -20 DEG C., optionally in the presence of a diluent, the resulting ester hydrolysed by heating at 70-100 DEG C., advantageously first in an alkaline medium then in an acid medium, and the alcohol dehydrogenated over Raney nickel.  Examples are given.
Patent GB-606708-A (GB)
Title: Improvements in or relating to automatic release mechanisms, more particularly for use with parachutes
IPC: B64D17/56
Filed: 1946-02-18
Abstract: 606,708. Primers. BENDIX AVIATION CORPORATION. Feb. 18, 1946, No. 5017. Convention date, Dec. 2, 1944. [Class 9 (i)] [Also in Group XXXIII] Fig. 4 shows a plastic receptacle 71 containing an explosive charge which is fired by an electric circuit which heats a wire in the charge, the circuit being completed through the connections shown on the right. Other constructions are shown in Figs. 10 and 18-22 (not shown). The device may be disarmed by a manual switch which must be closed before the firing circuit can be completed.
Patent GB-110301-A (GB)
Title: Improvements in Target Practice Apparatus for use with Small Arms.
Inventor: REARDON ROBERT EDWIN
IPC: F41J1/10
Filed: 1917-04-11
Abstract: 110,301. Reardon, R. E. April 11, 1917. Teaching rifle shooting. - Consists of a special target - holder for use with practice apparatus of the kind in which a rod contained in a tube inserted in the barrel of a small-arm is projected by a blow from the hammer to mark a record card or target placed a few inches in front of the muzzle of the gun. The holder comprises two uprights 40, 41, Fig. 1, a block G mounted to slide thereon and having grooves to receive a target F, a holder 100 for dummy cartridges 103, and a clip 107 for spare target cards. The uprights 40, 41 are tubular and are adapted to receive the marking rod when it is out of use. The target block G, which is preferably made of resilient material, engages the uprights by means of side grooves 50, Fig. 7, and is adapted to be reversed and inverted so that it can take up four positions. A plate 80, Figs. 5 and 7, adapted to be inserted in the target-holder G, may be provided to hold a target 81 so that it can be adjusted laterally to provide practice in allowing for windage. The feet of the uprights 40, 41 are pointed for insertion into the ground, and may be weighted to steady the holder if it is suspended for use.