baber/WOPTO huggingface dataset:
Patent GB-1036093-A (GB)
Title: An electrical circuit for performing logical operations
IPC: G06F7/501
Filed: 1963-04-25
Abstract: 1,036,093. Transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. April 25, 1963 [April 30, 1962], No. 16247/63. Heading H3T. [Also in Division G4] A binary adder in which the input is in the form of a single pulse which may have any of three amplitudes uses current steering techniques to develop sum and carry outputs. In the circuit shown the load resistor 30 of circuit 20 is greater than the resistor 30 of circuit 40 which in turn is greater than the resistor 30 of circuit 60. Initially the transistors 22, 42 and 62 are conductive. When the input is one unit more negative than the initial state transistor 22 is cut and transistor 21 becomes conductive with the result that there is a unit output on sum line 82 (see Fig. 2, not shown). When the input is two units more negative than the initial state transistors 22 and 42 are cut off and transistors 21 and 41 are conductive. The contribution of transistor 41 to line 82 balances that of transistor 21 and the net result is no output on line 82 and a unit output on carry line 80. Finally, transistors 22, 42, 62 are all cut off by a three-unit negative input and transistors 21, 41 and 61 become conductive resulting in a one unit output on both lines 80 and 82. The circuit can also be adapted to provide a variable threshold gate by commoning the outputs of switches 20, 40 and 60 to a single load resistor. By varying the collector supply voltage the circuit can respond to either one, two or three units of input current to form respectively an OR, majority, or AND circuit.
Patent GB-572016-A (GB)
Title: Improvements relating to seed sowing machines
IPC: A01C7/18
Filed: 1943-10-04
Abstract: 572,016. Seed sowers. WARD, F., and WARD, W. Oct. 4, 1943, No. 16253. [Class 6 (i)] A seled-sowing, machine comprises parallel rotatable discs 1 spaced by pairs of transverse partitions, each pair 3, 4 converging to a peripheral discharge opening 6 and one of each pair extending to the centre of the discs 1. A guard 8 prevents premature discharge. The partitions may be as shown or symmetrical with respect to radii to the disc axis. In this case the seed is introduced laterally through a central gap. Discs may be mounted coaxially with or on a parallel shaft geared to the landwheels. In the latter case adjacent pairs are linked or universally connected to allow for ground irregularities.
Patent GB-368161-A (GB)
Title: Improvements in or relating to luminous electric discharge tubes
IPC: H05B41/06
Filed: 1931-06-04
Abstract: 368,161. Thermal switches. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand Ges. fur Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) June 4, 1931, No. 16271. Convention date,. June 6, 1930. [Class 38 (v).] A bimetallic member 13, having a heating winding 14, engages with a groove 12 in a pivoted plate 8 on which a mercury switch 9 is mounted.
Patent GB-785008-A (GB)
Title: Process for manufacturing veneer panels
IPC: B27N3/06
Filed: 1954-06-02
Abstract: 785,008. Laminates. ELMENDORF, A. June 2, 1954 [July 9, 1953], No. 16280/54. Class 140. A veneer panel is made by applying by heat and pressure to one or both sides of a core of binder-coated uncompacted or loosely compacted ligno-cellulose particles a thin, green, wood veneer coated with an adhesive in excess of the amount required for bonding. The moisture content of the ligno-cellulose particles is 5-10 per cent, and the pressure is effected at 300-350‹ F. initially at 20-100 lb. per sq. ft. to force some of the adhesive between core particles in the region of the core surface, and subsequently at over 100 lb. per sq. ft. to bond the veneer to the core. The adhesive, which may be in powdered form, may comprise urea- or phenol-formaldehyde with, if desired, a filler such as wheat flour. The binder for the core particles may be urea-aldehyde resin, applied by spraying, or by precipitation while the particles are in aqueous suspension. The core particles are as described in Specification 785,007. As shown, a conveyer C carries a succession of cauls 1 on which are placed thin, green veneers 2 beneath a vibrating sieve or screen 3 which distributes adhesive on the veneers and then beneath a vibrating bar or knife 5 which evens up a mass of binder-coated ligno-cellulose fibres placed on the adhesivecoated veneers. The assembly passes beneath a roller 6 which compacts the fibres without bonding them, and under a second adhesivedistributer 7 after which layers 8 of green veneer are superimposed and the resulting sandwiches are hot-pressed. When the veneer layers have flaws such as knot-holes, the comminuted ligno-cellulose particles flow into and fill the flaws.
Patent GB-1425794-A (GB)
Title: Centreless electro magnetic polishing
IPC: B24B5/30
Filed: 1974-04-11
Abstract: 1425794 Electromagnetic polishing ZNIITMASH 11 April 1974 16350/74 Heading B3D In a method of centreless electromagnetic polishing a rotatable workpiece is placed between two transversely adjacent roller members 1, 2 at least one of which is in the form of an electromagnetic grinding head, the axis of rotation of the workpiece is spaced from the plane containing the axes of rotation of the roller members and the or each electromagnetic head is formed by at least one pair of axially adjacent discs 4 each pair containing a coil 6 and having an annular peripheral workpiece grinding/driving ring 5 of rubber or synthetic plastics material, ferro-magnetic abrasive powder 7 being retained within annular peripheral spaces between the rings or at each side of each ring. The workpiece is rotated with the rotation of the roller members and its surface polished during the rotation thereof, the two roller members being rotated at different speeds to create the abrasive polishing action. The axis of one roller may be slightly inclined to the axis of the other so that the axes intersect which orientation causes the axial feed of the workpiece with respect to the rollers during operation. Covers may be provided for the roller members which aid in the retention of the ferromagnetic powder and any coolant fluid used in the operation.
Patent GB-543995-A (GB)
Title: An improved device for mixing materials
IPC: B01F5/02
Filed: 1940-11-14
Abstract: 543,995. Mixing-apparatus. SPOONER, W. W. Nov. 14, 1940, No. 16483. [Class 86] Fluids, or solids in suspension are mixed by means of oppositely disposed jets'of venturi cross section connected by pipes to a feed pump which is supplied from the collected discharge from the jets. The vessel 6, in which the jets 4, 5 are disposed, is connected by its outlet 7 with the pump 1 from which the jets are supplied.
Patent GB-1471591-A (GB)
Title: N-caboxyalkylamino-substituted phosphonic acids
IPC: C07F9/38
Filed: 1974-04-16
Abstract: 1471591 N - carboxyalkylamino - substituted phosphonic acids BENCKISER-KNAPSACK GmbH 16 April 1974 [12 April 1973] 16622/74 Heading C2P An alkali metal salt or mixed alkali motal/ heavy metal salt of an N-carboxyalkylaminoalkane derivative of a primary or secondary amino-alkane mono- or poly-phosphonic acid, the alkane moiety of which may optionally be substituted by an aryl, hydroxy or carboxy substituent, is prepared by reacting the aminoalkane phosphonic acid with a compound containing an aldehyde or keto group and an alkali metal cyanide or an alkali metal-heavy metal cyanide complex in an alkaline medium at a pH of at least 8, at a temperature of 70‹ to 150‹ C. and at a mole ratio of phosphonic acid : aldehyde or ketone : cyanide of from 1 : n : n to 1 : 2n : 2n where n is the number of H atoms on the amino nitrogen atom(s) to be replaced. The compound containing an aldehyde or keto group may be formaldehyde, acetaldehyde, acetone or glyoxylic acid. The products may be used as anti-corrosion and complexing agents in aqueous systems. Phosphonic acids of the Formulae I and II where R is H, methyl, ethyl, phenyl, betahydroxyethyl, carboxymethyl, or (where m is 1 or 2), R<SP>1</SP> is H, methyl or carboxymethyl, R<SP>11</SP> is H or methyl and n is 1, 2 or 3 are claimed per se.
Patent GB-287510-A (GB)
Title: Improved means for effecting propulsion
IPC: B63H11/12
Filed: 1927-06-22
Abstract: 287,510. Experimental Engineering Co., (Assignees of Jacobs, J., and Akimoff, N. W.). March 23, 1927, [Covention date]. Propelling, steering, and manoeuvring by fluid jets.-In jet propulsion apparatus for ships, a fluid under pressure is discharged into a passage open to the surrounding water at its smaller cross-section. The passage has a smaller outlet than inlet. and when external to the vessel has thin edges. A number of such units may be aggregated into a large unit. The apparatus may be adjustable for steering. An engine 2, Fig. 1, drives a pump 3 which forces water down the adjustable conduit 7 on the top of which is a steering lever 8. The pressure water passes to a cylinder 12, Fig. 8, having internal open cones 13, 17 and issues axially at the ports 20 in the constricted part 15 to entrain liquid in the cones. The inlet is larger than the outlet 16 and at botli ends the edges are sharp. Instead of rotating the tube 12 and conduit 7 for steering, the tube 12 may be jointed at 24 to a fixed conduit and has a block 25 that is attached to a steering suspension rod 27. Instead of liquid, air or gas may be employed, such as the exhaust of an internal combustion engine and the tube may be placed inside the boat with the inlet at the bottom and outlet at the stern. A number of units may be disposed at suitable places beneath or within the hull. Alternatively a number of units may be nested within a drum 31, Figs. 9, 10 carrying a front coned header plate 32 and flat rear plate. Pressure fluid is admitted at 34 and passes as jets 36 to entrain the surrounding fluid. This form is suitable for mounting on aircraft.
Patent GB-790648-A (GB)
Title: Improvements in or relating to an alternating voltage-monitoring device
IPC: G01R1/30
Filed: 1955-06-09
Abstract: 790,648. Voltage measuring bridge. BRUNO, A., and GALMAN, H. June 9, 1955, No. 16634/55. Class 37. A device for monitoring alternating voltages comprises a voltage-sensitive bridge comprising linear and non-linear resistances of which one diagonal is fed, over a range switch controlling a tapped series resistance, from the unknown input voltage; the other diagonal energizing a phase-sensitive balanced demodulator deriving a reference voltage from the input to produce a measurable unidirectional voltage representing in magnitude and sense the deviation of the voltage across the bridge from a standard balance valve; whereby the unknown input voltage may be determined from the unbalance voltage value and the range switch setting. In Fig. 2 the unknown voltage is connected over terminals A, B, series resistances 14, 22, variable resistance 13, and a selector switch successively inserting series resistances 2 to 10 to a diagonal of a bridge 15 comprising linear resistances R1, R2 and non-linear resistances L1, L2 respectively in opposite arms. The remaining diagonal is transformer coupled to a phasesensitive rectifier bridge demodulator 24, whose reference voltage is derived from the voltage drop across resistance 22 in series with the input and whose output is measured by centre-zero milliammeter 26 in series with variable calibration resistance 27 and/or by a recorder (not shown) coupled over terminals C, D and resistance-capacitance filter 29, 31, 33. The bridge is balanced when energized by 105 volts, and its output is then zero, but at other values there are developed by the demodulator unidirectional unbalance voltages dependent in magnitude and sense on the amplitude and sense of the difference. In operation, resistances 2, 3, 4, 5 corresponding to inputs of 110, 115, 120 and 125 volts, and resistances 6, 7, 8, 9, 10 corresponding to inputs of 190, 200, 210, 220 and 230 volts, may be successively inserted by switch 12 in series with calibrated variable resistance 13 for fine adjustment over a 5-volt range. The deflection range of meter 26 in either direction corresponds to 5 per cent of the bridge input voltage, and by adjustment of switch 12 the deflection of the meter is reduced to a minimum, so that the unknown voltage to be monitored may be determined from the switch setting in conjunction with the meter deflection, or alternatively in conjunction with the setting of calibrated resistance 13 for zero meter deflection. The voltage-sensitive bridge may comprise one non-linear resistance element only, or two pairs of such elements having opposed temperature coefficients, while an isolating amplifier may be inserted at the bridge input. In a modification (Fig. 3, not shown) the voltage-sensitive bridge comprises a linear and a non-linear resistance in conjunction with the centre-tapped secondary of an input transformer; the reference voltage for the balanced demodulator being derived from the primary thereof.
Patent GB-732793-A (GB)
Title: Improvements in tunnel kilns
Inventor: BURTON WILLIAM HENRY
IPC: F27B9/20
Filed: 1952-07-04
Abstract: 732,793. Tunnel kilns. PILKINGTON'S TILES, Ltd. July 3, 1953 [July 4, 1952], No 16793/53. Class 51 (2). [Also in Group XXX] In a tunnel kiln utilizing a "walking beam" type of conveyer for the passage of articles therethrough, the "walking beam" is raised by unidirectionally rotating lifting cams, the traversing movement being controlled by a cam follower or followers on the "beam" engaged by a unidirectionally rotating control cam or cams, and the "beam" carries a central portion built up on refactory material, the normal level thereof coinciding with the level of two outer members forming with the upper surface of the central portion, the base of the kiln. The kiln shown is formed of a refractory material A, A<SP>1</SP>, and is provided with ducts a to house electrical heating elements a<SP>1</SP>. The kiln base is formed by outer members A<SP>2</SP> and a portion B which is carried by a "walking beam" B<SP>1</SP>. The "beam" is supported at each end of the kiln on lifting cams C mounted on shafts c, which are caused to rotate via worm gearing c<SP>3</SP> and a shaft c<SP>6</SP> disposed along the length of the kiln by an electric motor c<SP>5</SP>. Mounted on the shaft c at the feed end of the kiln is a cam C<SP>1</SP> adapted for engagement with a follower c<SP>1</SP> secured to the "beam". Both cams C raise and lower the "beam" and are in contact with it continuously, such that were it not for the control cam C<SP>1</SP> and follower c<SP>1</SP> the "beam" would undergo continuous forward movement. The control cam C<SP>1</SP> ensures that the "beam" is rested and moved rearwardly against the rotation of the lifting cam C at predetermined time intervals. Positive forward movement of the "beam" may be ensured by the provision of another cam-C<SP>2</SP> on the shaft c at the feed end of the kiln adapted to co-act with a follower c<SP>1</SP> secured to the "beam". The beam b<SP>1</SP> is provided with fins b3 projecting into sand seals a<SP>3</SP>, and is stiffened by fins b<SP>1</SP> and, at each end, by I-section members B2, one section member and the beam carrying pairs of horizontal guide rollers b' engaging vertical rollers b<SP>6</SP>, whereby any warping &c. of the beam may be compensated. Slits may be provided in the upper flange of B1 for expansion &c. and one or more vents a<SP>5</SP> may be provided for release of any gases generated in the kiln.
Patent GB-241523-A (GB)
Title: Improvements in electrical regulator systems and devices
IPC: H02P5/48
Filed: 1925-06-30
Abstract: 241,523. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Staege, S. A.). Oct. 14, 1924, [Convention date]. Speed - maintaining systems.-For the speed regulation of electric motors, in particular for the maintenance of a definite speed - ratio between motors driving different units of papermaking machinery, a rotary drum 25, Fig. 1, having ronducting and non-conducting segments passing under brushes 37, 38, intermittently short-circuits resistance 36 connected to the field 4 of a motor 3 which may drive a paper roll 1. The drum is kept rotating by a constant-speed synchronous motor 21 and also undergoes axial displacement from a differential screw and nut 35 whenever the relative speed of the motor 2 varies; the displacement varying the effective field resistance so as to restore the normal speed. Any number of motors may be simultaneously controlled, each associated with a contact device and a synchronous generator, the periodicity of which may be varied by varying the speed of a direct-current master motor 14. The number of brushes in contact with the drum is not less than three, and, as shown in Fig. 5, a large number of brushes may be disposed in a helical line corresponding to a helical boundary between the insulating and conducting segments 52, 53; successive steps of field resistance 71 being thus brought into use as the drum moves axially. The drum is provided with springs to effect axial re-engagement of the screw and nut members after travelling to the extreme limits. Further devices for ensuring re-engagement are described in Specification 237,234.
Patent GB-112144-A (GB)
Title: Improvements in connection with the Manufacture of Paper Cores, Paper Plugs, and the like.
IPC: B31D5/00
Filed: 1916-11-24
Abstract: 112,144. Spicer & Sons, J., and Spicer, A. D. Nov. 24, 1916. Machines for making; cores, covering by winding.-Relates to the manufactura of plugs or pellets for the nose portions of bullets. These are usually made of aluminium. According to the invention, the plugs are made from cords, rods, or the like of cellulosic or other organic material weighted, if necessary, so as to have the same specific gravity as the metal that has to be replaced. Suitable weighting-materials may comprise glue and barytes or litharge and casein. The cord may be produced from paper strips guided by glass rods 7, 10, Fig. 1, through a tank and superposed and pressed between rollers 7, 8. The combined strips are then twisted by a flyer and wrapped with further paper strips in a separate machine. Guide-rollers for the twisting-machine are provided at the throat, shoulders, and extremities of the flyer. The flyer spindle is driven by toothed gearing, and the bobbin is braked by blocks 33, 34 adjusted by a fly-nut 37 and acting on) a drum 32 connected by pins 38, 39 with the bobbin. The lifter rail 40 is raised and-lowered so as to lay the cord evenly on the bobbin by a mangle pin-wheel 45 operated by a shiftable pinion 46. The bobbin is held down on the lifter rail by hooks. The feed rollers are driven through chain gear. The rods 9, 10 are mounted so as to be capable of being raised clear of the liquid in the tank. The described machine for wrapping the twisted cord with paper strip is of a generally known character, and comprises a brake 105 for the bobbin, adjustable tubes 107, 109 to regulate the amount of adhesive taken up by the cord during its passage through the tank 108, a hollow spindle 115 carrying ribbon spools 114 and slotted for the passage of the paper strip, and a purchase drum 118. Successive units of the kind described may be employed to wrap successive layers of paper ribbon on the cord. The purchase drums 118 are preferably driven by chain gearing. The cord produced is preferably re-wound. During the re-winding, it may be passed over polishing and drying cylinders. It may then be worked up into plugs by machines usually employed in forming plugs from aluminium wire.
Patent GB-813340-A (GB)
Title: Improvements in or relating to valve units for controlling fluid flow
IPC: G05D7/01
Filed: 1954-06-08
Abstract: 813,340. Stuffing-box substitutes. MILLAR, J. H. Sept. 8, 1955 [June 8, 1954], No. 16871/54 Class 122 (5). [Also in Group XXIX] In a glandless valve, the operating parts are isolated from the controlled fluid by a sealing device comprising an axially compressible flexible corrugated metal tube 26 secured at its ends to the valve member 16 or a part thereof or thereon and to the valve bonnet 12 or other fixed part of the structure by first crushing a few of the end corrugations 28 of the tube and then trapping these crushed corrugations against an annular shoulder by advancing relatively to one another, a tubular nipple or spigot 29 projecting into the end of the tube and a ferrule 32 located on the outside of the tube, one of these parts carrying the shoulder and the other having a corrugated peripheral surface complementary to that of the tube for engagement therewith. The tube 26 is helically corrugated. As shown the shoulder 30 is formed on the nipple 29 and the ferrule 32 is internally corrugated to correspond with the uncrushed corrugations of the tube 26. The nipple 29 and the ferrule 32 are formed with hexagonal parts 27, 33 respectively to enable the one to be screwed into the other. One nipple 29 is formed integrally with the valve member 16, and the other with a cover or bonnet 12. The valve member may be operated electrically, e.g. by a solenoid or may alternatively be operated by pressure fluid admitted to the inside of the flexible sealing tube 26 itself.
Patent GB-571567-A (GB)
Title: Improvements relating to optical condenser systems
IPC: G03B21/20
Filed: 1943-10-14
Abstract: 571,567. Optical-projection apparatus. WRAY (OPTICAL WORKS), Ltd., and WYNNE, C. G. Oct. 14, 1943, No. 16889. [Class 97 (i)] [Also in Group XI] In an optical system comprising a reflector and condenser, the reflector has the form, of parts of one or more conicoids of revolution, as shown an ellipsoid, with the light source 5 at one of the foci F1, the major axis F1, F2 being both the axis of revolution and the optical axis of the condenser 9 which receives light through an aperture 6 located about that axis ; the aperture 6 is placed on the opposite side of the focus F1 at which the light source is placed to a line 10, 11 on the reflecting surfaces forming the boundary between two regions 10, 1, 11 and 10, 17, 18, 11 such that rays originating from the light source 5 incident on either of the two regions is reflected to the other region and thence back through the focus at which the light source is placed, the ray after such double reflection making a greater or lesser angle with the optical axis than does the original ray according to whether the latter is incident on one or other of the two regions of the reflecting surfaces. Such rays are shown by the full line F1, 14, F2, 15, F1, 16, the angle 15, F1, F2 after double reflection being less than the angle 14, F1, F2 made by the original ray with the axis, and by the dotted line F1, 19, F2, 20, F1, 21, F2, 22, F1, 23, the angle 20, F1, F2 after the first two reflections being greater than the angle 19, F1, F2 made by the original ray. Modifications comprise the use of other conicoids of revolution ; in Fig. 2 (not shown) part of the ellipsoid is replaced by a hyperboloid convex to the source of light; in Fig. 3 (not shown) the hyperboloid becomes a plain surface containing the minor axis of the ellipse ; in Fig. 4 (not shown) part of the ellipsoid is replaced by a hyperboloid concave to the source of light; in Fig. 5 (not shown) the common chord of a hyperboloid and an ellipse cuts the optical axis outside the line joining the foci ; in Fig. 6 (not shown) the reflector is made up of sections of paraboloids, such that focus F2 is removed to infinity. Light reflected from the zone 17, 18 at the rear of the reflector is ineffective if the distance between Fl and F2 is great, in which case the reflecting surface is replaced by a spherical mirror having its centre of curvature at F1.