baber/WOPTO huggingface dataset:
Patent GB-1108309-A (GB)
Title: Improvements in and relating to magnetic flux detecting devices
IPC: G01R33/04
Filed: 1965-04-08
Abstract: 1,108,309. Electric motors. HITACHI SEISAKUSHO KABUSHIKI KAISHA. 8 April, 1965 [8 April, 1964], No. 14916/65. Heading H2A. [Also in Division G1] A D.C. stepping motor comprises a yoke Y (Fig. 11a) with coil windings Wg 1 , Wg 2 , a permanent magnet rotor Mr, a stationary toroidal core C coaxial with the rotor and carrying a D.C. energized bias winding L3 and coils L1, L2. The coils L1, L2 are located mutually opposite one another and are included, together with capacitors C 1 , C 2  in the feedback circuit of an oscillator comprising a transistor T r-0 , the state of oscillation of which is dependent upon the relative values of L1, L2. In operation the winding L3 is energized by a direct current sufficient to produce a saturating magnetic field in the core C. The rotor magnetic field opposes the bias field in one half of the core and assists it in the other half, so that as the rotor rotates it causes a saturated region to rotate around the core C linking coils L1, L2 sequentially, thereby varying their inductance, and changing the state of oscillation of T r-0 . The emitter current of T r-0  is fed to the base of a switching transistor T r-1  the collector of which is connected to the base of a second switching transistor T r-2 . The stator coils Wg 1 , Wg 2 , in series, are connected between the collectors of T r-1 , T r-2 . When T r-0  is oscillating T r-1  is in the " off " state and T r-2  is " on " so that stator coil Wg 2  is energized and torque. is applied to the rotor Mr. When the rotor has rotated half a revolution, oscillation stops, T r-1  is switched " on " and T r-2  " off ", so that coil Wg 2  is de-energized and coil Wg 1  is energized and thus rotation of the rotor continues. In an alterntive embodiment (Fig. 11b) a toroidal or rectangular core is installed near the peripheral rotational path of the rotor instead of being coaxial therewith.
Patent GB-919424-A (GB)
Title: New water-insoluble mono-azo dyestuffs of the benzthiazole-azo-benzene series
Inventor: FISHWICK BRIAN RIBBONS
IPC: C09B29/033
Filed: 1958-12-03
Abstract: The invention comprises monoazo dyes of formula <FORM:0919424/IV (b)/1> wherein the benzene nuclei A and B may carry substituents other than sulphonic and carboxylic acid radicals, X is a lower alkyl, hydroxyalkyl or alkoxyalkyl radical, Y is hydrogen or a lower alkyl, hydroxyalkyl or alkoxyalkyl radical, R1 is a lower carbamyl-alkyl, lower monohalogenoalkyl, g -halogeno-b -hydroxypropyl or b :g -epoxypropyl radical, R2 is a lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl or lower acyloxy radical and the term "lower" indicates a radical containing not more than 5 carbon atoms. They are prepared by the usual coupling procedure using suitable 2-aminobenzthiazole and N:N-disubstituted-aniline components. p
Patent GB-914128-A (GB)
Title: Improvements relating to gyroscopic instruments
Inventor: NEWLAND DAVID EDWARD
IPC: G01C19/42
Filed: 1960-04-28
Abstract: 914,128. Gyroscopic apparatus. ENGLISH ELECTRIC CO. Ltd. April 21, 1961 [April 28, 1960], No. 14932/60. Class 97 (3). [Also in Group XXXIV] By applying frictional braking pulses of short duration the gimbal ring 1, of a rate gyro, is rapidly brought to rest without overshooting its zero position. Armature 8 mounted by means of spring 9 to gimbal ring 1 intermittently contacts laminated core 5, when coils 6 are energized with A.C., and thus provides a succession of frictional braking pulses preferably at a frequency of four times the natural frequency of the gyro system, but may be between two and twenty times this frequency. An electromagnetic powder clutch may also be used to provide a frictional braking torque. The Provisional Specification refers to other means for producing a pulsed braking torque, e.g. electromagnetic, magneto-strictive and piezoelectric, but no system is described.
Patent GB-473908-A (GB)
Title: Improvements in or relating to tubular rubber and spring structures
IPC: A47C27/20
Filed: 1936-05-27
Abstract: 473,908. Springs. INTERNATIONAL LATEX PROCESSES, Ltd., MURPHY, E. A., TROBRIDGE, G. W., and WARD, A, N. May 27, 1936, No. 14940. [Class 108 (iii)] [Also in Groups V and XIV] A composite structure of rubber and material in the form of a helical spring such as for upholstery pads or tubes for gas masks or other connections comprises a helical spring 2 wholly or partially embedded in a rubber tube 3 made directly from an aqueous dispersion. A number of such tubes may be cohesively united parallel to each other, a spring being embedded in each tube, so as to form a composite block. The structure may be formed by dipping the springs in the aqueous dispersion or by spraying or otherwise coating. The or each spring may be mounted on a former. Where several tubes are to be united, the formers may be mounted on a baseboard. The tubes may be arranged in two layers, the innermost tubes in one layer being bonded at one end to four tubes in the other layer, and the outer tubes being bonded to two or three of the tubes in the other layer. The springs may be steel wire or coarse rayon filaments. Natural or artificial aqueous dispersions of rubber with or without the addition of synthetic rubber, or rubber substitutes such as factice, or rape oil, or other rubber-like substances, or cellulose esters or casein may be used. The aqueous dispersion may be frothed. Specifications 290,313, 332,525, and 332,526, [all in Class 70], are referred to.
Patent GB-110210-A (GB)
Title: Improvements connected with Fuel Economisers or Exhaust Steam Heaters and the like for Steam Boilers.
Inventor: GREEN FRANCIS WILLIAM
IPC: F22D1/02
Filed: 1916-10-20
Abstract: 110,210. Green, F. W., and Tennant, G. E. Oct. 20, 1916. Feed-water, heating.-The water-supply pipe E and the delivery pipe F of an economizer or exhaust steam heater are so connected to two consecutive or intermediate stages A, B of a multistage centrifugal pump that the preliminary stages keep the pressure in the economizer or heater at the desired limit, and the final stages force the water through the outlet G into the boiler.
Patent GB-140283-A (GB)
Title: Improvements in and relating to machines for coating nuts or other objects with chocolate, or other sweetmeats
IPC: A23G3/24
Filed: 1919-06-13
Abstract: 140,283. Norwood, P. June 13, 1919. Discharging-devices for conveyers; parallel chains with cross-connexions.-In a machine for coating objects with chocolate, the centres are placed in compartments on a conveyer which carries them through a bath of molten chocolate, the centres being free to move in their compartments to give the chocolate free access to the whole surface. As shown, the conveyer c comprises parallel wires connected by transverse plates f, carried 'by gear chains driven by sprockets. At the delivery end of the conveyer the wires and transverse plates sink into grooves of a roller n and the coated centres are delivered to fluted rollers l and a conveyer m. Longitudinal wires may connect adjacent plates f to prevent coated centres from moving together and adhering. According to the Provisional Specification, the conveyer may comprise parallel flexible metal bands, the inner one having transverse rows of fingers and the outer one corresponding holes.
Patent GB-125557-A (GB)
Title: Improvements in and relating to Combination Furniture and Knock-down Shelving Units.
Inventor: ALEXANDER ALBERT EDGAR
IPC: A47B87/02
Filed: 1918-09-16
Abstract: 125,557. Alexander, A. E., (Grand Rapids Show Case Co.). Sept. 16, 1918, Sectional furniture is constructed with pilasters connecting adjacent sections, some of the pilasters serving as supports for shelving. In the arrangement shown in Fig. 1, the sections 1 are connected by pilasters 4, 6 at the front and rear which support shelves 15 by means of shelf-supports 12 having projecting ledges and engaging slots 11 in the pilasters.
Patent GB-130201-A (GB)
Title: Improvements in or relating to Press Knives.
Inventor: JOYCE CHARLES
IPC: C14B5/04
Filed: 1918-09-16
Abstract: 130,201. Joyce, C. Sept. 16, 1918. Press knives. - A press knife comprises a blade or blades of steel ribbon, sharpened on one edge, and assembled in a holder with packing material of strip form. A knife for cutting out laces comprises a flexible blade 1, Fig. 1, wound up spirally with a strip of packing material 2, such as lead, the whole being received in a recess 3 in a holder 4. A modification is described for cutting rectilinear strips such as a fringe.
Patent GB-1411301-A (GB)
Title: Alkyl alkanoate derivatives of substituted piperazinediones and  polymer compositions stabilized thereby
IPC: C08K5/3462
Filed: 1973-03-29
Abstract: 1411301 Stabilizing polymers CIBA-GEIGY AG 29 March 1973 [30 March 1972] 15101/73 Headings C3P and C3R [Also in Division C2] Synthetic organic polymers normally subject to UV deterioration are stabilized by the novel piperazine diones of Formula I where R<SP>1</SP> and R<SP>2</SP> are the same or different C 1-12  alkyl group or R<SP>1</SP> and R<SP>2</SP>, together with the common carbon atom, form a monocyclic carbocyclic ring having 5 to 12 ring carbon atoms; n is 1 or 2; when n is 1, R<SP>3</SP> is C 1-20  alkyl and when n is 2, R<SP>3</SP> is a C 2-8  alkylene group; and A is a C 1-6  straight or branched chained alkylene group in which the terminal carbon atoms each bear only hydrogen atoms or one alkyl group. Examples stabilize polyethylene, polypropylene, polystyrene, acrylonitrile - butadienestyrene terpolymer, polyurethane (from toluene diisocyanate and alkylene polyols), polycarbonate (from bisphenol A and phosgene), polyethyleneterephthalate, polymethylmethacrylate, nylon 6,6 and polyphenylene oxide with compounds of Formula I and/or with specific hindered phenol antioxidants.
Patent GB-365463-A (GB)
Title: Improvements in or relating to methods and apparatus for forming scroll-edge blanks from metal sheets
IPC: B21D28/06
Filed: 1931-05-22
Abstract: 365,463. Punching; stamping. ARMSTRONG, J. J. V., 12, Church Street, Liverpool.-(Continental Can Co., Inc. ; 100, East 42nd Street, New York, U.S.A.) May 22, 1931, No. 15131. [Classes 83 (ii) and 83 (iv).] Making hollow-ware.-Apparatus for producing scroll-edge blanks from which tin can tops and bottoms &c. are to be blanked out, comprises means for notching the edge of the sheet, trimming out the edge portion between said notches and stamping out alternate blanks spaced exactly the double width of a blank whereby the alternate blanks fall out. The sheet 10 is fed to the dies step by step by fingers 19 reciprocated in timed relation to the reciprocating ram 14 by means of the crank 27, and is positioned by gauge fingers 19a and stops 20. Punches 13 on the ram co-operate with dies 15 to form triangular notches a in the edges of the forward part of the sheet. The sheet is then fed so that the part located between these notches lies over the opening in the lower die 12. The scroll-edge die 11 then descends to shear out a blank A, the punches 13 simultaneously operating. The sheet is again fed forward a distance equal to two blank widths, bringing the scrolled forward edge of the sheet beyond the opening in the lower die 12, and that located between the notches a directly over said opening. On the downstroke of the ram, two scroll-edge blanks A, B are sheared out, A being punched through the opening in the lower die and B falling incident. Simultaneously the blades 17, 18 trim off the portions b<3> at the ends of the blanks B, such recoveries being usable for punching out small articles therefrom, the waste strips a<4> fall away and the next set of notches a is formed.
Patent GB-185221-A (GB)
Title: Improvements in and relating to sterilising milk
IPC: A23C3/033
Filed: 1921-05-31
Abstract: 185,221. Nielsen, N. J. May 31, 1921. Sterilizing and preserving milk.-Milk sterilized by heating to about 130' C. is then cooled and sealed in vessels through which sterilizing- medium, such as steam, is passed immediately before filling, the apparatus being so arranged that the flow of milk is continuous, one vessel being filled while others are being attached, sterilized, and removed. The milk is passed by a, pump 21 through heaters 9, 10 and coolers 11, 12. These consist of tubes 13, Figs. 4 and 5, attached to headers 14 formed with grooves 15 so as to connect the tubes in pairs as shown, thus forming a zigzag conduit, and provided with covers 16. The tubes are enclosed in casings through which heating and cooling fluids may be passed. A tank 22 is provided connected by a pipe 33 with the pipe joining the heater and cooler so that milk may be circulated through the heater until the desired temperature is reached, when the pipe. 33 is closed by a valve 34 and the milk passes by a pipe 25 provided with branches 26, 27 to the filling-devices. These consist of rotatable shafts 43, Fig. 7, formed with passages 45, 46 communicating with lateral openings 51 to which the vessels to be filled can be attached and transverse passages 47, 48 in the frame in which the shafts rotate. The opening 51 is formed with two concentric passages the outer of which the milk enters tangentially through the pipe 27 and passages 47, 45, the air escaping by the inner passage, the passages 46, 48 and an outlet 66. When the vessel is full, a cork 58 is pressed into place by a plunger 56 and the vessel removed. Superfluous milk passes by the passage 48 and a pipe 67 to a chamber 28 and thence to the tank 22. Before introducing the milk, steam is passed through the vessel and passages by a pipe. 64. The cork 58 is placed in the position shown by the plunger 56, so that it is sterilized along with the rest of the apparatus.
Patent GB-800548-A (GB)
Title: Improvements in and relating to convergent-divergent turbine nozzles with a quadrilateral-shaped outlet orifice, and method for their manufacture
Inventor: MARQUARDT RUDOLPH WILLY
IPC: F01D9/02
Filed: 1956-05-15
Abstract: 800,548. Making nozzles. BRONSWERK N.V. May 15, 1956, No. 15137/56. Class 83 (2). [Also in Group XXVI] A convergent-divergent turbine nozzle is formed of two concentric parts so as to provide a quadrilateral-shaped outlet orifice, the two parts being shown in Figs. 1 and 4, and comprising a cylindrical external part 1 formed with a cylindrical chamber 2 and an outlet orifice 3 of square cross-section, and a cylindrical internal part 4 adapted to be received in the cylindrical chamber 2 and comprising a convergent bore 7 of circular cross-section and a divergent hole 6 of square cross-section, the size of the outlet of the hole 6 corresponding to that of the orifice 3 in the external part 1. After assembly, the two parts are machined off at the plane D, D, Fig. 7, making an angle α with the centre-line of the nozzle equal to the inlet angle of the working fluid. The plane D, D passes through an outlet edge of the hole 6 in the internal part 4 and through an outlet edge of the orifice 3 in the external part 1. The orifice 3 and the hole 6 are originally formed as cylindrical and conical holes respectively and are subsequently shaped to square section.
Patent GB-449359-A (GB)
Title: Improvements in devices for applying tear-off caps to bottles
IPC: B67B3/22
Filed: 1935-05-24
Abstract: 449,359. Capping bottles. POMMER, E., (trading as KORKFABRIK E. POMERANZ), 30, Erdbergerlande, Vienna. May 24, 1935, No. 15244. Convention date, Feb. 22. [Class 125 (ii)] A machine for applying tear-off caps to bottles &c. e during their automatic conveyance from the filling to the closing position, has a feeding device m for caps f from which caps are taken up by the advancing bottles on the conveyer a. The caps pass from a hopper k by way of a sorting drum l to the feeding device m and are first held by a pair of stop-fingers r and after automatic release are taken up by the bottle heads and passed between a pair of rollers s by means of which they are lightly secured to the bottle head. The bottles then pass under a setting head d and between two separate conveyer bands which are provided with grooves corresponding to the periphery of the bottle head.
Patent GB-1339087-A (GB)
Title: Rice snack product
IPC: A23L1/164
Filed: 1972-04-04
Abstract: 1339087 Snack products NESTLE SA 4 April 1972 [19 April 1971] 15300/72 Heading A2B An intermediate which may be deep fried to give a crisp snack is in the form of shaped pieces comprising at least 70wt% gelatinised rice, 0-10wt% cold swelling starch, 7-15wt% colour and flavour, and 0-15wt% water, the rice having been gelatinised after shaping. The snack derived therefrom may comprise 25- 40wt% fat, 50-75wt% gelatinised rice flour, 0-10% flavour and colour, and have a density of 50-90 gm/l. The intermediate may be prepared by forming a dry mix into a dough, shaping into pieces, heating to gelatinise the starch whilst maintaining the water content at above 27wt%, and drying to below 15wt% water.
Patent GB-1004599-A (GB)
Title: Cantactless alternating current switch using controlled valves
IPC: H03K17/725
Filed: 1963-04-18
Abstract: 1,004,599. Control systems for consuming devices. CESKOSLOVENSKA AKADEMIE VED. April 18, 1963 [April 27, 1962], No. 15301/63. Heading H2H. A three-phase A.C. load 21, 22, 23 is controlled by a switching system comprising semiconductor valves 5, 6, 7 controlled respectively by an external supply 50, 51, by a current transformer 90 and by a second current transformer 60, the arrangement being such that the valves 6, 7 are ignited by the pulses induced in transformers 90, 60 when the current in the valves 5, 6 reaches zero. The initiation and continuance of valve conduction is controlled by the external source 50, 51, and the secondary winding 92 of transformer 90 is centre-tapped and connected as shown so that when valve 5 conducts at the commencement of a cycle its increasing current produces a pulse of correct polarity to cause simultaneous conduction of the valve 6, which thereafter is fired as described above. The functioning of the circuit is analysed, Fig. 3 (not shown), and a single-phase arrangement comprising two valves and one current transformer is described, Fig. 1 (not shown).
Patent GB-1386967-A (GB)
Title: Making electrical connections to semi-conductor devices
IPC: H01L21/60
Filed: 1971-05-17
Abstract: 1386967 Semi-conductor devices; component assemblies DEFENCE SECRETARY OF STATE FOR 15 May 1972 [17 May 1971] 15306/71 Headings H1K and H1R A method of making electrical connection to a semi-conductor device comprises depositing a layer of glass on a conductive plate 13, heating the layer to convert it to a glass-ceramic material, etching the layer to leave a post 12, mounting the device 11 on the plate adjacent the post, and bonding a connection 14 between the top of the post and an electrode on the device. A ring 17 (Fig. 5), may also be formed by etching from the layer, and a cap 18 may be fixed to the ring, and contact the post top, to form one contact of the assembly. The structure and materials of the encapsulation are said to reduce capacitance at GHz frequencies. A plurality of devices 11, 11a may be present each associated with a separate post 12, 12a, or a plurality of devices may be associated with a single post, in series or parallel relationship. The assembly may be incorporated in a wave guide, or form a travelling wave tube arrangement. The semi-conductor devices may be avalanche or PIN diodes, high frequency transistors, varactors or Gunn effect devices. The glass ceramic may be a mixture of oxides, predominantly of silicon, zinc and lithium. The plate 13 which forms a contact of the assembly may be of copper or diamond, the connection 14 being of gold.
Patent GB-402681-A (GB)
Title: Improvements in or relating to looms for weaving
IPC: D03D47/24
Filed: 1933-05-27
Abstract: 402,681. Looms for weaving. TEFAG TEXTIL-FINANZ AKT.-GES., Zurich, Switzerland.-(Assignees of Wuttig, E. ; 41, Schulstrasse, Chemnitz, Germany.) May 27, 1933, No. 15363. Convention date, June 6, 1932. [Class 142 (iii).] In a loom for weaving, of the kind employing a fixed weft bobbin and a freely flying shuttle of the gripping or " nipper " type, one or each of the shuttle boxes, as also the picking mechanism associated therewith, is adjusted relatively to the other shuttle box and its associated picking mechanism, so that the distance between the boxes and mechanisms can be adjusted without necessitating adjustment of the slay. As shown, the shuttle boxes 15<a>, 15b, are carried on members 31<a>, 31b, which are locked to a bar 32 by bolts 34<a>, 34b, which engage slots in the bar. Pickers 8<a>, 8<b>, are alternately jerked inwards by straps 9<a>, 9<b>, wound around the ends of pivoted levers 21<a>, 21b, and around the end of an arm 19 oscillated by cam-controlled lever mechanism 17, 18. In one modification the members 31<a>, 31b, are dispensed with, the boxes resting on and being adjustably secured to the slay 1, and in another modification the bores are slidably adjusted on rods extending across the loom.
Patent GB-1060778-A (GB)
Title: Optical rotation medium
IPC: G01J4/04
Filed: 1964-04-14
Abstract: A glass has a composition of formula xR2O3.(1 - x)A, where x \sF 0.1, R is Ce, Pr, Tb, Dy or mixture thereof, and A is a glass-forming oxide.  A may contain P2O5, B2O3, GeO2, Al2O3, or mixtures thereof. In preparing the glass, the rare earth may be added as oxide or carbonate; P2O5 may be added as an ammonium phosphate, e.g. mono- or di-basic ammonium phosphate, or ammonium metaphosphate; B2O3 may be added as such or as ammonium borate. The reactants are powdered, mixed and calcined, preferably below the solidus temperature, again ground and mixed, and fired in a platinum crucible until molten in air or in an inert atmosphere, e.g. N2, Ar or He.  The melt is then quenched and moulded in a brass mould and annealed at 450 DEG  to 650 DEG  C.  The glass may be used in optical rotation devices.