baber/WOPTO huggingface dataset:
Patent GB-2467733-A (GB)
Title: An arborist tool for use in raising and lowering tree trunks and branches
Inventor: COATES REG
IPC: A01G23/099
Filed: 2009-02-10
Abstract: An arborist tool 10 for raising and lowering tree trunks and branches comprises a base plate 13 which is attached by a strap 16 to the base of a tree and on which at least one capstan 14 is mounted. A rope gripping device 12 in the form of a two-part lever 23, 24 is pivotally mounted on the base plate 13 for movement towards and away therefrom, and is operable in operation to grip a rope 30 passing therethrough when the rope gripping device 12 is moved towards the base plate 13 and to release the rope 30 when the rope gripping device 12 is moved away from the base plate 13. The lever parts 23, 24 are pivotally attached to each other, with an anvil 28 on one part 23 and a clamp means 29 on the other part 24, the rope 30 passing in a convoluted path between the anvil 28 and clamp means 29. Two spaced axially parallel capstans 14, 15 may be mounted on the base plate 13.
Patent GB-2471458-A (GB)
Title: An angle to PWM converter for a resolver, using a single high frequency reference sine wave
Inventor: BENAMMAR MOHIEDDINE
IPC: G01D5/20
Filed: 2009-06-29
Abstract: A sinusoidal reference waveform from generator 30 is input to a comparison block 101 which also receives amplitude-demodulated sine and cosine values from a transducer 20 such as a resolver. A flip-flop 102 is set by comparator C2 when the reference signal passes positively through zero and is reset by comparator C1 when the reference sinusoid equals the sine value from transducer 20. The output of the flip-flop is a PWM signal with duty ratio proportional to the angle. The comparator C3, responsive to the cosine value, allows the circuit to output PWM signals encoded for angles between 90 and 270 degrees. The range of the sine and cosine values is adjusted to match the range of the reference sinusoid, so that the angle measurement is independent of the amplitude of the reference waveform, which may be the transducer excitation signal. To improve resolution where the sine value is near its maximum or minimum a PWM signal derived from a comparison of the cosine value with the reference signal may be selected, instead of the sine-derived PWM signal, when the angle lies between 45-135 or 225-315 degrees (figures 4-8).
Patent GB-2473264-A (GB)
Title: Volatilization Device
Inventor: WONG ERIC
IPC: A24F42/60
Filed: 2009-09-08
Abstract: A device for delivering volatilized material comprises a heat sink (2) configured to receive heat from an external heat source, and a socket (14) configured to receive a volatilization component (8) having a source of volatilizable material. The socket (14) is configured such that the source of volatilizable material is in detachable heat transfer communication with the heat sink (2). A cover (20) is movable between a first position covering the heat sink (2) (figure 1), and a second position in which the heat sink (2) is uncovered (figure 2).
Patent GB-2459828-A (GB)
Title: Method of encoding data using a low density parity check code
Inventor: LEE YOUNG SEOB
IPC: H03M13/11
Filed: 2008-03-27
Abstract: A method for encoding data using a parity check matrix is disclosed. The method for encoding data using a parity check matrix comprises generating a fourth base matrix by applying a row permutation pattern and a column permutation pattern to rows and columns of a third base matrix, respectively, the third base matrix including a plurality of indexes, each of the plurality of indexes indicating a sub-matrix; generating the parity check matrix by replacing each index of the fourth base matrix with a corresponding sub-matrix; outputting an encoded bit stream by encoding an input bit stream using the generated parity check matrix; and permuting an order of sequences of the encoded bit stream according to an inverse of the column permutation pattern.
Patent GB-2461004-A (GB)
Title: Operator control and display apparatus
Inventor: KELLER MARTIN
IPC: F24C7/08
Filed: 2008-06-16
Abstract: The operator control and display apparatus (1) has a first operator control element (3), an operator control panel (6) with at least one second operator control element, and a display panel (4), wherein the operator control panel (6) and the display panel are designed and arranged symmetrically with respect to the first operator control element (3).
Patent GB-951084-A (GB)
Title: Improvements in or relating to magnetic recording members
IPC: G11B5/706
Filed: 1960-03-21
Abstract: 951,084. Magnetic structures. FUJI SHASHIN FILM KABUSHIKI KAISHA. March 21, 1960 [March 19, 1959], No. 10008/60. Heading H1H. A process for producing a magnetic recording member comprises heating powdered ferrite, which contains 0.2-35% cobalt by metal atomic ratio and which has a particle size less than 10Á, in a magnetic field at a temperature between 50‹ C. and the sintering temperature (say 600‹ C.) and cooling in a magnetic field, and thereafter dispersing the material in a liquid binder, spreading to form a layer, and drying or allowing to harden whilst the particles are orientated. The ferrites specified are Co ferrite, Co-Fe ferrite, Co-Mn-Fe ferrite, Co-Ni-Fe ferrite, Co-Ni-Mg-Fe ferrite, of granular or columnar shape and ranging in size between 0.2 and 10Á. The powder is placed in a hard glass tube from which the oxygen is removed by N 2  before evacuating and sealing. Heating at temperatures between 50-600‹ C. in magnetic field of 200-1000 gauss is specified and both D.C. and A.C. fields may be used. The particles in the tube may be treated by ultrasonic waves to effect the magnetic orientation. The material may be dispersed in a liquid binder, spread on to a base of cellulose triacetate passed through a magnetic field, and dried, or alternatively after mixing with a binder it may be spread on an endless band passing through a magnetic field, dried, and removed so giving a homogeneous tape. The tape may also be stretched to orientate the particles.
Patent GB-526987-A (GB)
Title: Improvements relating to the preparation of raw cement and like materials
IPC: C04B7/38
Filed: 1939-03-30
Abstract: 526,987. Cement. JORGENSEN, M. VOGEL-. March 30, 1939, No. 10012. Drawings to Specification. [Class 22] Raw materials for making cement are treated to adjust the proportions of the ingredients, for example, impure limestone is treated to remove excess of silica, by utilizing both electrostatic separation and froth flotation. The raw material after grinding may be separated into two parts, for example, according to grain size and one part, generally the coarse part, be subjected to electrostatic separation and the other part to separation by froth flotation. The two concentrates may be mixed before or after drying the wet concentrate from the froth flotation, and the mixture may be formed into nodules. Alternatively, the concentrate from the electrostatic separation may be further ground and separated by froth flotation. Specification 516,603, is referred to.
Patent GB-488988-A (GB)
Title: Drinking apparatus for bees
IPC: A01K53/00
Filed: 1938-04-01
Abstract: 488,988. Bee -- keepers' appliances. BABINEC, S. April 1, 1938, No. 10015. [Class 5 (ii)] A drinking-appliance for bees comprises a raised board 1 having transverse and longitudinal channels 3 that are maintained full of water through apertures 4 in a float chamber 5 supplied from a container 15 by a flexible pipe 11 having a strainer 16. The float is guided by a tubular part 6 provided with a draining plug 7. When the level of the water rises, a conical part 9 of the float enters a nozzle 10 of the pipe 11 which is secured in a detachable cover 14 of the float chamber.
Patent GB-214999-A (GB)
Title: An improved method for producing hydrocyanic acid from sulphocyanic acid or its compounds
IPC: C01C3/02
Filed: 1924-04-23
Abstract: Sulphocyanic acid and its salts and esters are oxidized by air or oxygen so as to obtain hydrocyanic acid by mixing the sulphocyanogen compound in the form of vapour or spray with the oxygen-containing gas at a suitable temperature, for instance 350-750 DEG  C., the reaction being effected for instance by passing the mixture through tubes of clay, silica, iron, aluminium &c., the rough or metallic surface having catalytic effect.  The sulphocyanogen compound, if not volatile may be atomized by distilling a solution in superheated steam by running a solution into a vessel heated to a high temperature so as to cause sudden evaporation, or by injecting superheated steam or air or both.  In an example, sulphocyanic acid solution is vaporized and the vapour, mixed with air, is passed through an aluminium tube containing pieces of porcelain and heated to 500-525 DEG  C.
Patent GB-401957-A (GB)
Title: Improvements in automatic electric overload switches
IPC: H01H73/56
Filed: 1933-04-04
Abstract: 401,957. Automatic circuit-breakers. GOTTSCHLICH, H. and GOTTSCHLICH, J., 171, Sch÷nbrunnerstrasse, Vienna. April 4, 1933, No. 10127. Convention date, April 5, 1932. [Class 38 (v).] In an automatic circuit-breaker which may, alternatively, be released by hand a retaining latch is employed which also combines the functions of a releasing lever for the manual release and a pressure-transmitting member during the closing of the circuit-breaker As shown in Figs. 6 and 7 this member consists of a plate 9 formed with ears 8 surrounded by springs 11, the ears being adapted to slide down in vertical slots 6 in a fixed bridge member 2 on depression of an operating push-button 4. During this movement the lower edges 15 of the plate 9 bear against projections 27 of an insulating slide 24 (Fig. 5) so that the operating pressure is transmitted to this slide and the movement of the slide against a spring 26 draws the insulating projection 25 from between the resiliently supported contacts 22 so that these contacts are allowed to come into engagement. At the end of the downward movement of the push-button the ears 8 move into enlargements 7 of the slots 6 as shown in Fig. 6 so that the circuit-breaker remains closed when the pressure on the push-button is released. To release it by hand further pressure is made on the push button and the flange 41 bears on upturned projections 13 of the plate 9 so that the lever pivots about the bases of the enlarged recesses 7 and the edges 15 are drawn from the projections 27. The insulating slide then slips back and separates the contacts. In addition a combined electro-magnetic and thermal trip is provided consisting of an electromagnet 31 below which is mounted a resilient currentcarrying thermal strip 35 on which is secured an armature 33 (Fig. 1). In the case of a moderate overload of considerable duration the bending of the strip 33 operates a push rod 39 engaging an upturned end 16 of the plate 9 and lifts the edges 15 of this plate from the projections 27 of the switching member so releasing this member to break the circuit. A similar tripping action occurs on excessive overloads sufficient to cause the electromagnet to attract the armature 33. The switch contacts are mounted between the insulating plates 1 and 21 and the circuit-breaking action is assisted by the electromagnet 31 which is mounted on the plate 21 immediately below the contacts. The return of the push-button after closure of the circuit is prevented by a depending rod terminating in a ball-shaped projection 18, this rod working in a longitudinal slot in the plate 9. The position of the button thus indicates the closing or opening of the circuitbreaker. The base 1 is provided with grooves 14 in which the ends of the springs 11 slide during operation of the mechanism, the other ends of these springs bearing on lateral projections 12 of the plate 9.
Patent GB-610256-A (GB)
Title: Improvements in building blocks, slabs or panels
IPC: E04C2/04
Filed: 1946-04-02
Abstract: 610,256. Building-slabs. AFRON, A. April 2, 1946, No. 10221. [Class 87(i)] A building-slab comprises an asbestoscement facing sheet 1 secured to a backing of cavity bricks 3 or pumice stone blocks spaced apart by reinforced concrete 5. The bricks 3 may have grooves to key with a binding material 2 and one or more edges of the slab may be bevelled to engage reinforced concrete supports. The sheet 1 may project beyond the backing.
Patent GB-497193-A (GB)
Title: Improvements in or relating to party line communication systems
IPC: H04L15/26
Filed: 1938-04-04
Abstract: 497,193. Party-line systems. MIX & GENEST AKT.-GES. April 4, 1938, No. 10259. Convention date, April 3, 1937. [Class 40 (iv)] In a system in which the wanted party is signalled by operating the magneto in accordance with the Morse code, one or more of the stations has apparatus which is actuated by the signals but only gives an indication if the code received is that of the station concerned. This apparatus has a separate part for responding to each of the elements in the calling signals. A single abnormally long element may be used for emergencies or for calling all stations at once. In the arrangement shown, apparatus W responds to the signals and during the first code element sends impulses to a stepping mechanism A through a series relay X which is energized by the first impulse over Wi. The stepping mechanism controls a wiper or a cam Sa and its off-normal springs sa cause the relapse of X at the end of the first code element. The impulses of the next element are thus directed to a similar mechanism Sb through a series relay Y, and so on. At the wanted station a circuit is made in due course for a relay P which pulls up sluggishly to operate a relay R which locks itself, gives the calling signal and removes a shunt from a relay M which sends the driving mechanisms home. In cases in which some stations have two-element and others threeelement codes, P is made very sluggish at the two-element stations to enable its circuit to be broken by the arrival of a third element before it can operate R. R is released at the called station when the call is answered, e.g. by the insertion of a plug. At the other stations a thermal relay TH causes restoration of the apparatus by removing a shunt from M. In a modification, Fig. 2 (not shown), a common driving mechanism driven over the line is clutched in turn to the cams &c. individual to the code elements. Other modifications referred to but not described in detail comprise the replacement of the device W by a clutch for coupling the cams to a machine in response to received impulses, and the restoration of the selecting apparatus by operating a key or by the act of answering instead of by relay R.
Patent GB-513419-A (GB)
Title: Manufacture of new azo dyestuffs
IPC: C09B29/08
Filed: 1938-04-04
Abstract: 513,419. Dyes ; dyeing and printing. KNIGHT, A. H., and IMPERIAL CHEMICAL INDUSTRIES Ltd. April 4, 1938, No. 10331. [Classes 2 (iii) and 15 (ii)] Water-soluble azo dyestuffs are manufactured by combining diazotized 6-chloro- or 6- bromo-2:4-dinitraniline with a coupling component of the general formula where R1 is alkyl (methyl to butyl) and R2 is a sulphatoethyl group. Alternatively there are .employed coupling components of the above formula in which R2 is a hydroxyethyl group, and the resulting dyestuffs are treated with agents capable of converting them into their sulphuric esters, e.g., sulphuric acid. The products are suitable for dyeing and printing acetate artificial silk, and for dyeing wool, natural silk, tin-weighted silk and leather. The dyeings are dischargeable. In examples : (1) 6-chloro- or 6-bromo-2:4-dinitraniline is diazotized and coupled with N-n-butyl-N-#- sulphatoethyl-m-toluidine; (2) the dyestuff 6-chloro- or 6-bromo-2:4-dinitraniline# N-nbutyl-N-#-hydroxyethyl-m-toluidine is treated with concentrated sulphuric acid ; (3) 6- chloro-2:4-dinitraniline is diazotized and coupled with N-ethyl-N-sulphatoethyl-m-toluidine; (4) 6-bromo-2:4-dinitraniline is diazotized and coupled with N-isopropyl-N-sulphatoethyl-mtoluidine. Specifications 421,975 and 430,079 are referred to.
Patent GB-187573-A (GB)
Title: Improvements in or relating to driving mechanism for actuating reciprocating bodies
IPC: D03D49/46
Filed: 1922-04-11
Abstract: 187,573. Souczek, F. Oct. 21, 1921, [Convention date]. Addition to 148,757. Picking-motions; checking shuttles and pickers; pickers; shuttle-boxes; shuttles.-In driving- mechanism for reciprocating objects, particularly shuttles of looms, as described in the parent Specification, a rotating magnet drum 21, Figs. 1 and 2, is used comprising cast steel parts 2, 3, 4, the part 2 being fixed to the spindle 1 and the annular part 4 being detachably screwed to the part 3, which is adjustable. Electric current is supplied to a magnet-exciter winding 6 in the part 3 by means of brushes 9, 10, the magnetic flux having to bridge air gaps 11, 12. The parts 2, 4 are formed with wedge-flanges 13, 14, which are separated when the electric current is cut off by the action of a spring or springs 18 in boxes in the part 4 pressing against pins 19, so that the movement of the shuttle is not interfered with. The lower lateral surfaces of the shuttle are chamfered to suit the wedge-angles of the drum flange. When the shuttle enters the shuttle box 25, it engages the picker 22, thereby extending springs 26, Fig. 2<a>, attached to brackets carried by the picker and fitting through slots 24, whereby the shuttle is stopped. The shuttle is held wedged against the top walls of the box by means of a spring-controlled hardwood wedge 29, resting on rollers 30, but, when the magnet windings are excited and the flanges 13, 14 of the rotating magnet drum are thereby caused to approach one another, they act on a wedge-shaped spring-controlled driver rod 32 which engages the wedge 29, moves it to the left, and frees the shuttle. The shuttle is then ejected from the box under the action of the stressed springs acting on the picker brackets, and it passes between a vertically-adjustable stopbar 16 and the flanges 13, 14, whereby it is picked across the loom. The magnet drum is driven by a belt 20, and the contact-device for the electric currents used has only two current-giving contacts. The wedge 29 may be actuated by a cord and knob 37 when it is desired to remove the shuttle. It is stated that, in a modification, the two drum parts are pressed together at the desired time by means of wire cable and levers from the old shuttle-throwing shaft, by means of cams. The picker is filled with rubber or leather.
Patent GB-453235-A (GB)
Title: An improvement in or relating to speed signals and speed control devices for motor road vehicles
IPC: G01P1/10
Filed: 1935-04-04
Abstract: 453,235. Automatic control systems. GLEDHILL, W. V., Ty Bryn, Thongsbridge, near Huddersfield. April 4, 1935, No. 10439. [Class 38 (iv)] [See also Group XIX] Speed.-In speed indicating and control devices on vehicles wherein at a predetermined speed the speedometer needle a<1> engages a yielding adjustable contact b to close, by means of a cut-in device g, a circuit through an electromagnet h for operating the fuel control valve of the engine and/or earthing the ignition system, the driver on closing his control switch c is notified that the control circuit is in operation by means of a pilot valve e on the instrument board, a rear lamp f giving a similar warning to overtaking vehicles. The adjustable contact b may be replaced by two or more spaced contacts, and as the speed rises the needle a<1> may engage first a fuelcontrol contact and then a contact for cutting- out the ignition.
Patent GB-460108-A (GB)
Title: An improved aid for rapidly determining the degree of acidity or the ªÐh value of liquids
IPC: G01N31/22
Filed: 1936-04-09
Abstract: A reagent paper for determining the pH value of liquids, particularly milk, is impregnated with one or more indicators adjacent to which one or more colours are applied for comparison. The comparison colour may itself be an indicator possessing originally the same colour as the first indicator but changing to a different one.  Several indicators responding to different pH values may be applied side by side, and may all change to the same colour.  The values at which they change may be printed on or beside each indicator, preferably in the colour to which the indicators all change so that the statements become invisible in respect of the affected indicators.
Patent GB-1393211-A (GB)
Title: Manufacture of shaped hollow bodies of silicon or silicon carbide
IPC: C23C16/44
Filed: 1973-03-05
Abstract: 1393211 Silicon and silicon carbide bodies SIEMENS AG 5 March 1973 [15 June 1972] 10504/73 Heading C1A A method of manufacturing a hollow body of silicon or silicon carbide by deposition of silicon or silicon carbide from the gas phase upon a heated graphite substrate, whereby the substrate becomes coated with a layer of silicon or silicon carbide and thereafter removing the substrate for reuse to leave the layer as the desired hollow body, wherein prior to the deposition of the layer of silicon or silicon carbide the graphite substrate is heated at a temperature above 1300 C. in a stream of reducing or inert gas. A preferred temperature range is 1400 to 1600 C. The gas may be hydrogen, nitrogen or a rare gas. An apparatus for carrying out the method is described.
Patent GB-276046-A (GB)
Title: Improvements in variable velocity ratio gearing of the sun and planet wheel type
IPC: F16H3/66
Filed: 1926-04-21
Abstract: 276,046. Normanville, E. J. de. April 21,1926. Variable-speed gearing of the kind in which different epicyclic trains are brought successively into the driving combined train, comprises a main train or unit with interengaging planets 4, 7 carried by a brake drum 6. The planets 4 mesh with a central gear 3 fast on the driving-shaft 2 and with an internally-toothed ring 1 constituting the driven element. The planets 7 mesh with a sun gear 9 which can be clutched solid with the shaft 2, or driven at definite speeds below and above that of the shaft 2 through additional trains. In the arrangement shown, a second train 12, 13, 15, 17, 18 is similar to the train 3, 4, 1, 7, 9. By applying brakes to drums 6, 11, 16, 20 in succession, reversed driving and three reduced forward rising speeds are obtained. When a splined sleeve 24 is slid to the right to engage a clutch 23, 22, there is solid driving. When the sleeve 24 is slid to the left to engage a clutch 32, 31, and a drum 30 is held fast, there is overdriving, that is the element 1 is driven faster than the shaft 2. In a modification, between the drums 11, 16 are two separate three-element trains producing the same ratios as the train described.