baber/WOPTO huggingface dataset:
Patent GB-784707-A (GB)
Title: Improvements in integrators for computing the mean value and other characteristics of voltages derived from electrical testers
Inventor: SPENCER-SMITH JOHN LIGHTFOOT
IPC: G06G7/184
Filed: 1953-10-09
Abstract: 784,707. Analogue electric calculating systems. LINEN INDUSTRY RESEARCH ASSOCIATION. Oct. 8,1954 [Oct. 9, 1953], No. 27763/53. Class 37. An integrator for determining the mean value of a signal voltage derived from an electric measuring apparatus comprising a condenser in parallel with a voltmeter which are fed with the signals through a rectifier, is provided with facilities for adjusting the ratio of charge to discharge time T 1 , T 2  for the condenser so that when T 1  = T 2  the voltmeter accurate indicates the mean value of the signal voltage, and when T 1  = T 2  the voltmeter accurately indicates the average of the larger deviations only. For obtaining equality in the time constants the condenser 4 (Fig. 2) is fed with the rectified signal from measuring apparatus 1 via two cathode follower valves 6, 7 connected in pushpull. In a modification the valves are used to square the rectified voltage, so that the meter 5 indicates the mean square value. For obtaining a desired value of T 2  greater than T 1  the rectifier 2 is located between the condenser 4 and the valves 12, 13 (Fig. 4), a variable resistance 14 being added in the cathode circuit, so that voltmeter 5 indicates the average of the widely variable signals only. In a modification the rectifier 2 is replaced by a half-wave rectifier so that the average of only the larger positively (or negatively) varying signals are measured. Specification 681,477 is referred to.
Patent GB-1502398-A (GB)
Title: Textile article treatment apparatus
IPC: D06F37/02
Filed: 1975-07-02
Abstract: 1502398 Textile treatment apparatus G M BHAVSAR 2 July 1975 [4 July 1974] 27863/75 Headings D1A and D1L [Also in Division F4] A textile article treatment apparatus, e.g. for dyeing, drying, cleaning, washing or rinsing, comprises at least one cylindrical drum 1 rotatable about its horizontal axis A and having end faces 2, 4 each having a circular axial opening 3, 5, a scoop 7 having a partcylindrical section 8 extending between the two end faces and connected by an edge 10 to the drum cylindrical side wall 9, the scoop further having a frustoconical section 11 connected by one of its edges to one end face along an arc 12 coinciding with the circular opening, the scoop moving the articles axially from the drum when the latter is rotated through greater than a predetermined angle. Scoop 7 is foraminous and axial vanes 6 are attached to perforated wall 9. Cylindrical collar 13 is fitted to aperture 5. Each drum is mounted on four rollers 35 in a respective housing 18 having a lower half (31) joined to an upper half (32). Drive 20 comprises a motor (21) whose output shaft (22) is connected via chains to sprocket-wheels (25) mounted on splined shafts (24) journalled in arms (27) pivotal about shaft (22). Springs (29) press sprocket-wheels (25) into mesh with chain (26) wrapped around drum 1. Clothing is loaded via chute 42 into the upstream drum 1. Programmer 45 operates valve V to introduce soapy water into appropriate housing 18. Drum 1 is oscillated through 360 anticlockwise and clockwise repeatedly and then through a further 180 clockwise slowly to discharge clothing to the next drum downstream. The drums are started and stopped independently of one another and clothing may be fed from the furthest downstream drum to an extractor or press.
Patent GB-1218468-A (GB)
Title: Planetary basket centrifugal strainers
IPC: B04B5/02
Filed: 1968-06-12
Abstract: 1,218,468. Planetary baskets strainer centrifuge. BAKER PERKINS Inc. 12 June, 1968 [12 June, 1967], No. 27912/68. Heading B1D. Planetary baskets 17 rotate in rapid orbital motion about the central axis a such that the slurry in regions 17a is subjected to a centrifugal force; simultaneously, baskets 17 rotate slowly about their own axes b, the effect being that residue solids left in region 17a are gradually conveyed around to region 17b adjacent the central axis, the weaker centrifugal force present there causing the solids to slide out of the baskets over a shelf 39, horizontal adjacent the central axis at least, and into a solids collector 48. As described, baskets 17 rotate orbitally on being driven via belt pulley 28, and about their own axes by virtue of the engagement between gears 15 and 42 driven by a gear wheel 14. Fig. 3 (not shown) illustrates multi-stage baskets (130); in Fig. 4 (not shown) the axes of the baskets (231) are vertical, and a plurality of fixed baffles (258) convey residue to successive stages within each basket. Washing means may be provided.
Patent GB-1101813-A (GB)
Title: Improvements in or relating to appliances for mixing and stirring pulverulent substances
Inventor: CELLIER JACQUES
IPC: B01F23/30
Filed: 1965-07-01
Abstract: 1,101,813. Mixing. CELLIER ETABLISSEMENT. 1 July, 1965, No. 27974/65. Heading B1C. [Also in Division F1] A mixing appliance comprises a vessel for pulverulent materials and a mixing injector passing through the peripheral wall of the vessel with a component tangential to the wall, the arrangement producing two distinct turbulent motions in the materials. The vessel is double walled, contains a horizontal screen above two injectors, and is adapted for starch processing, Each injector comprises a steam nozzle 9 surrounded by a sleeve 10, there being ports 12 in the sleeve through which starch is drawn. The starch may be rotated by blades in a direction contrary to that of the steam.
Patent GB-757960-A (GB)
Title: Improvements in or relating to animal feeding stuffs
IPC: A23K1/18
Filed: 1954-09-28
Abstract: Compounds composed of the cationic fragment of a cationic surfactant and the anionic fragment of an anionic surfactant are employed as a growth promotant, e.g. for hogs and chickens.  The cationic fragment may be derived from a surface-active quaternary ammonium salt and the anionic fragment from common soaps. Trimethyl actadecyl ammonium stearate is a typical compound. Specific examples are given in the Specification.
Patent GB-228975-A (GB)
Title: Improvements in or relating to mattresses and like articles with resilient supporting surfaces
IPC: A47C23/32
Filed: 1923-11-09
Abstract: 228,975. Hilton, T. Nov. 9, 1923. Mattresses. - The helical spring 1 is connected to the wire netting surface 6 of a spring mattress &c. by unknotting the end of the spring, lacing the unknotted end through the wire netting, then looping the unknotted spring end and finally engaging the looped end 5 with the adjacent convolution of the spring, or in a kink therein.
Patent GB-209834-A (GB)
Title: Improvements in thermionic devices
IPC: H02M7/06
Filed: 1922-10-18
Abstract: 209,834. Robinson, E. Y. Oct. 18, 1922. Vacuum or low-pressure apparatus, arrangements of.-In a thermionic valve for rectifying and generating alternating current, the filament is heated by alternating current substantially 90‹ out of phase with the space current so that the filament is heated uniformly. In the arrangement shown in Fig. 4, the anodes are earthed, and the filaments are connected with the secondary windings of a phase-changing transformer 4, the filament of the valve 6 being connected with a secondary formed by two windings 9, 10 the current in which is 90‹ out of phase with the space current due to the corresponding secondary 7 of the power-supply transformer. In another arrangement the secondary of one transformer supplies the power current, and the secondary of another transformer the filament current, the filaments being connected across complementary phases. In the single-phase arrangement shown in Fig. 7 the filaments are connected with the secondary 26 of a transformer through choke coils, preferably of equal value and wound on a single core so that they do not offer any resistance to the space current. The output circuit is tapped from the mid-point of the secondary 26 so that the space current divides equally between the filament legs; or the output circuit may be tapped from the mid-point of choke coils connected in parallel with the filament. A two-phase arrangement is also described. Specification 217,327 is referred to.
Patent GB-1523239-A (GB)
Title: Carburation control of a two stroke cycle spark ignited internal combustion engine
IPC: F02B1/10
Filed: 1977-07-07
Abstract: 1523239 Treating IC engine charges J ALBINSON 7 July 1977 28475/77 Heading F1B In a spark-ignition, two-stroke engine fuel is injected into the cylinder at the beginning of the compression phase and the charge includes recirculated exhaust gas, the amount of exhaust gas being determined by a mixing valve, the setting of which is related to the quantity of fuel supplied by the fuel pump, as modified by a servounit responsive to the speed and torque of the engine.
Patent GB-703343-A (GB)
Title: Improvements in or relating to electric bus-bar systems and means for making connections thereto
IPC: H02G5/00
Filed: 1949-11-07
Abstract: 703,343. Hand contact-appliances ; junction boxes. PRUDEN, D. C., and TOWLE, H. G. Nov. 7, 1950 [Nov. 7, 1949], No. 28476/49. Class 38 (1) A bus-bar system and means for making connections thereto comprises an insulating batten 1, Fig. 1, having conducting strips 3 secured on opposite faces thereof and means for securing it to a wall &c. and a connector, Fig. 3, including a pair of spring-closed contacts 7 movable by handles 9 for temporarily connecting said contacts to the bus-bar strips. The connector may carry a lamp-holder 11 connected by leads 12 to the contacts 7 which are L-shaped to hook over the strips 3, fibre rollers 14 being mounted below the contacts for engaging the underside of the batten. The handles are pivoted together at 10 and are urged apart by a spring 15. Fig. 2 shows a junction box for connecting one or more busbar systems to a main bus-bar system and comprising a rectangular box 5 in the sides of which are opposed apertures 6, one pair receiving the main bus-bar system, thus allowing the junction box to be slid thereon, and the others receiving the bus-bar systems 'to be connected thereto.
Patent GB-364047-A (GB)
Title: Improved wheel for tractors and other agricultural implements
IPC: B60B15/02
Filed: 1930-09-24
Abstract: 364,047. Tractor and like wheels. MILLER, G. J., Court Lodge Farm, Chelsfield, Kent. Sept. 24, 1930, No. 28544. [Class 144 (i).] A wheel for use on tractors and other vehicles intended to operate on soft ground has a single narrow rim with projections at its sides to which projections are detachably secured projecting cleats or the like which form an effective rim to support the load. The cleats 16 are, preferably, inclined at approximately equal angles to the radius and tangent. The wheel may be built of two dished thin metal pressings united at their peripheral margins, or may have spokes, or may be formed of a metal disc 11 to which is riveted complementary pairs of lugs 14, each pair carrying a cleat 16 extending to both sides of the wheel. The cleats may be removed and replaced by a metal tyre of ordinary type or a rim shaped to take a rubber tyre.
Patent GB-945124-A (GB)
Title: Improvements in or relating to tyre gauges
IPC: G01L17/00
Filed: 1962-07-25
Abstract: 945,124. Tyre gauges. SCOVILL MANUFACTURING CO. July 25,1962 [Aug. 9,1961], No. 28668/62. Heading G1L. The pressure responsive element of a tyre gauge is constituted by a body 14 of closed cell elastomeric material. A graduated shell 15 is fixed at 41 to body 14 and co-operates with an index line 13 on a transparent part 12 of the casing 10. One end of the casing 10 is closed by a chuck 16 having a check valve to connect the gauge to the tyre valve stem. A manually operated pressure release valve 50 is also provided. Specification 925,284 is referred to.
Patent GB-394200-A (GB)
Title: Circuit breaker contacts for large currents
IPC: H01H1/42
Filed: 1932-10-14
Abstract: 394,200. Switch contacts. ALLM€NNA SVENSKA ELEKTRISKA AKTIEBOLAGET, Võsteras, Sweden. Oct. 14, 1932, No. 28728. Convention date, Oct. 15, 1931. [Class 38 (v).] A contact for heavvcurrent switches has a pair of flared contact fingers 2 in the form of an inverted V comprising the relativelyfixed contact member between which is adapted to engage the wedge-shaped movable contact 1. During the contact engagement the fingers 2 are adapted to move pivotally about their lower ends, relatively strong springs <3> bearing on their outer sides near the lower ends and relatively weak springs 6 bearing on their outer sides near the upper ends so that a larger lateral movement of the upper ends is permitted than can take place at the lower ends. The inward movement of the contact fingers when the contact 1 is lowered is limited by the enlarged heads of pins 4 which pass loosely through holes in the outer springs 3. Current is led to the contact fingers 2 through flexible strips 8, 9, portions of the strips 8 being bowed together to produce electrodynamic forces tending to hold the contacts in engagement. The rocking motion of the contact fingers during the engagement by the fixed contact is stated to prevent welding or sticking together of the contacts due to arcing.
Patent GB-1360893-A (GB)
Title: Adjustable tiller extension
IPC: B63H25/08
Filed: 1972-06-20
Abstract: 1360893 Adjustable tiller extension SEAWAY SUPPLY CO 20 June 1972 [2 July 1971] 28782/72 Heading B7V An adjustable tiller extension 10 comprises two elongate telescopically engaged elements 11, 12 which are axially slidable and relatively rotatable with respect to one another. Locking device 24 interconnects the two elements and is operable such that it is engageable in any selected position of the two elements by relative rotation between the two elements to prevent subsequent sliding movement between them. The locking device is releasable by relative rotation in the opposite direction to permit further sliding movement between the two elements. In the embodiment shown the locking device comprises locking base 25 fixed to inner element 12 and having eccentric portion 29 of reduced diameter surrounded by locking sleeve 30 of different thickness at different points.
Patent GB-189756-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/14
Filed: 1922-10-24
Abstract: 189,756. Pollock Pen Co., (Assignees of Pollock, R. T.). Nov. 30, 1921, [Convention date]. Reservoir pens.-A sealed ink cartridge 3, Fig. 2, is screw-threaded at the sealed end for attachment to a bushing 7, Fig. 1, in the end 20 of the barrel, and the feed-tube 8 extends through the bushing and is provided with a point 9 for puncturing and forcing inwards the sealing-cap 15 as the cartridge is being seated on the bushing. Bevelled seats 17, 18 are provided on the bushing and the cartridge to make a tight joint. The feed-tube is positioned in the end 20 of the barrel by means of a screw 13 to determine the flow of ink and also the position of the puncturing-point 9. Vent holes 19 are provided in the barrel 1 near the bushing 7. A screw cap 4 is provided at the rear end of the barrel to admit the cartridge.
Patent GB-380631-A (GB)
Title: Improvements in differential pressure gauges
IPC: G01L7/22
Filed: 1931-10-17
Abstract: 380,631. Liquid - level pressure gauges. PERMUTIT CO., 440, 4th Avenue, New York, U.S.A. Oct. 17, 1931, No. 28925. Convention date, Nov. 26, 1930. [Class 106 (ii).] A differential gauge comprises a float on each liquid column actuating an indicating device through a submerged parallelogram linkage. The cover 3 of a container 1 has depending walls dividing the container into three chambers 5, 6, 7 which communicate at the lower portions. The chambers 6, 7 have closed tops while the chamber 5 is open to the atmosphere. The container is partly filled with water, oil, &c. and the pipes 9, 10 conveying pressure fluid open into the chambers 6, 7 above the level of the liquid therein. In the lower part of the container is a parallelogram formed of jointed links 11 .. 14, the shaft of the joint 18 being supported in a bracket 19. The link 11 has two rigid extensions 20, 21 to which the floats 22, 23 are attached. Attached to the link 13 at right-angles to it is a pointer 24 moving on a scale 25 to indicate the average height of the floats. A longitudinal extension of the link 12 forms the pointer 26 which moving parallel to the link 11 indicates the pressure difference in chambers 6, 7. In a modification the floats are connected by vertical links to a T-lever one leg of which forms the link 11, while the link 12 is in one with a short arm at right-angles to it which is connected by a link to a recording pen moving over a clock-driven chart while the link 13 is pivoted to a link connected to a pivoted pointer. In a third modification the links 12, 13 are each connected with a pivoted magnet which moves a corresponding magnet attached to a pivoted pointer outside the casing.
Patent GB-208302-A (GB)
Title: Improvements relating to rope conveyors
IPC: B61B10/02
Filed: 1922-10-25
Abstract: 208,302. Main, G. A., and Mann, S. G. Oct. 25, 1922. Suspended vehicles for travelling ropeway conveyers run on guide rails 2 at bends or stations so as to free the clips 3 from the rope 4 and engage supplementary clips 5 with driving- chains 6, the clips being diverted by a guide from contact with the chain pulleys.
Patent GB-1111077-A (GB)
Title: Method of improving fuel cell performance
IPC: H01M8/14
Filed: 1966-06-29
Abstract: 1,111,077. Improving the performance of a fuel cell having a fused carbonate electrolyte. TEXAS INSTRUMENTS Inc. 29 June, 1966 [7 July, 1965], No. 29141/66. Heading H1B. The performance of a fused carbonate type fuel cell is improved by lowering the temperature of the cell from the normal working temperature to a temperature still above the solidification point of the electrolyte then returning the temperature to normal. The lower temperature is preferably closer to the solidification temperature than to the normal operating temperature, and preferably corresponds to the point where internal cell resistance begins to increase sharply with decreasing temperature. The cycle preferably occupies at least two hours, better, 8-16 hours, and the cell may continue to be operated at the lower temperature. In Examples a cell of the type described in Specification 1,092,211 is operated at 650‹ C. and cooled to 480-520‹ C., using a sodium-lithium carbonate eutectic. A ternary sodium-potassium-lithium carbonate electrolyte would require temperatures of 550‹ C. and a little over 400‹ C. correspondingly.
Patent GB-249910-A (GB)
Title: Improved apparatus for recording the rest and motion of road vehicles
IPC: G07C5/06
Filed: 1924-12-05
Abstract: 249,910. Sutherland, W. C., and Denton, J. Dec. 5, 1924. Roller-and-sheet recording appatatus. - In an in-motion recorder the record strip 2 is fed by rollers 3, which are driven by an electro-magnet governed by time-regulatingmechanism. The armature 8 of the electromagnet 7 has a pawl 9 engaging a ratchet-wheel 10 which is mounted loosely on a spindle 12 and is connected by a spring 14 to a toothed wheel 13. This wheel meshes with a pinion 16 on a spindle 17 the rotation of which is controlled by an escapement 18, 19 and a 'balance wheel 20. A worm 6 on the spindle 17 drives the upper feed roll 3. The make and break in the circuit of the electromagnet 7 comprises a star-wheel 23 fixed to the spindle 17 and adapted to contact with spring blades 24, 24<a>. TEe recording pencil 26 is carried by a spring blade 25 which is oscillated, when the vehicle upon which the instrument is mounted is in motion, by a star-wheel 27 driven by a wheel-actuated shaft 28. This shaft may also actuate a mileage register.
Patent GB-679133-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/47
Filed: 1949-11-15
Abstract: 679,133. Electrostatic precipitation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 15, 1949 [Dec. 1, 1948], No. 29195/49. Class 39 (i). An electrostatic precipitator comprises a screen of meshed filaments of relatively high electrical resistance held in a frame of relatively low electrical resistance, and a high voltage is established between a point in the interior of the screen and the frame. The electrified screen is placed transverse to the gas flow. Several screens may be incorporated in a dust collector cell removable from a casing, and preceded by an ionizer. In one embodiment, Fig. 8, the screen is of zig-zag outline, and comprises meshed filaments 40 held in frames formed by horizontal spaced zig-zag wires 38 and vertical spaced straight wires 39 located midway between the apices of the fold. The high voltage is applied between wires 37 which contact the centre of alternate screen sections at apices of the folds, and the frame wires 38, 39. In a modification, Fig. 13, the wires 37 form with further vertical spaced straight wires 44, frames containing screen sections whose centres are contacted by the wires 38. In another embodiment, Fig. 9, the filamentary screens comprise flat sheets having spaced, rounded projections 52, 53. The projections on adjacent sheets are staggered with respect to each other, and space apart the flat areas. The screens may comprise asbestos fibres, paper or cloth base filaments, or threads impregnated with a liquid containing electrically conductive particles such as carbon or metallic salts, or filaments of semi-conductive plastics, such as urea-resin plastics. The openings between the filaments may be circular, square or hexagonal, and the filaments may be coated with an adhesive to aid in holding the deposited particles. Specification. 475,443 is referred to.
Patent GB-942926-A (GB)
Title: Circuit arrangements for decoding signals in a binary notation
Inventor: DELANOY DONALD BRIAN
IPC: H04W88/02
Filed: 1959-08-26
Abstract: 942,926. Electric selective signalling systems. PYE Ltd. Aug. 26, 1960 [Aug. 26, 1959], No. 29220/59. Heading G4H. A circuit which is responsive to a particular binary coded signal comprises a two-state device for each digit of the code signal for example cold cathode discharge tubes V 1 -V 4  connected to a trigger device V 5  which only operates when all the devices V 1 -V 4  are set to the respective states corresponding to the code signal. Tubes V 1 -V 4  have an output taken from the cathodes if they represent "1" and from the anodes if they represent "0",the connections preferably being made by plug-in link conductors LK. The outputs of tubes V 1 -V 4  are connected through diode gates D1-D5 to the trigger electrode of tube V5 which only fires if all diodes D1-D5 are blocked. Tube V5 may control an indicator relay RL. Specification 942,921 is referred to.
Patent GB-1186068-A (GB)
Title: Pulse Amplifier
IPC: H03K5/135
Filed: 1967-06-26
Abstract: 1,186,068. Transistor pulse circuits. SPERRY RAND CORP. 26 June, 1967 [28 June, 1966], No. 29310/67. Heading H3T. A pulse amplifier, e.g. for sensing the output from a magnetic film store comprises an amplifier circuit Q2, Q3, having an input coupling capacitor 69, a first switch Q1, connected in a negative feedback path and second and third switches Q4 and Q5 connected in series between the amplifier side of capacitor 69 and a point of reference potential. Each cycle is divided into four intervals. During the interval t 0 -t 1 , Q1, Q4 and Q5 are made conductive by the INITIATE and SAMPLE control input signals 17 and 19 so as to short circuit any noise on the input line 67. At time t 1 , Q4 is turned off, allowing capacitor 69 to charge so as to bring Q2 and Q3 to a Class A condition under control of feedback via the symmetrical transistor Q1. At t 2 , Q1 is turned off by the INITIATE input 17. The polarity of the input 67 now determines the change in conductivity of Q2 and Q3 and thus provides an output indicative of the state of the store. A STRETCH interval is provided between t 3  and t 4  by the SAMPLE control input 19, turning on Q4, which drives point A more positive so as to latch the amplifier in its present conductive state. Q5 is either conductive or non-conductive at this time depending on the binary state of the store. Finally, Q1, Q4 and Q5 are all turned on by the INITIATE and SAMPLE control inputs 17, 19 to clear the output.