baber/WOPTO huggingface dataset:
Patent GB-397047-A (GB)
Title: Improvements in and relating to cartons with divisions
IPC: B65D5/4805
Filed: 1933-03-10
Abstract: 397,047. Folding-boxes. SEARES, J. G. and BREHMER FOLDING BOX CO., Ltd., 271A, Vencourt Place, King Street, Hammersmith, London. March 10, 1933, No. 7333. Addition to 359,083. [Class 18.] A carton of the kind described in the parent Specification is formed from a single rectangular blank, Fig. 1, scored on the broken lines and cut on the full lines, and when erected forming a rectangular carton, Fig. 2, comprising a rectangular body portion having a series of compartments formed by turning in flaps or panels on two opposite ends of the body. The tongues 5, 9, 6, 10 pass through the slots 3, 7, 4, 8 and engage a loose partition 13 arranged horizontally in the carton, so that six compartments are formed at each end of the carton. In a modification, the blank is formed with the flaps and panels of two different lengths to be turned in, while two vertical partitions are employed. The carton has twelve compartments passing from the top to the bottom of the carton. In this form, the turned-in tongues engage slitted portions of the partitions, the tongues at the opposite ends meeting in the middle of the carton.
Patent GB-905568-A (GB)
Title: Improvements in radial flow machines such as fans and pumps
IPC: F04D29/16
Filed: 1961-02-28
Abstract: 905,568. Centrifugal fans, pumps and the like. MACARD SCREWS Ltd. Feb. 28, 1961 [March 2, 1960], No. 7340/61. Class 110 (1). In a radial-flow fan, pump or the like having an impeller supporting its vanes between parallel side sheets, the parts defining the annular gap between the periphery of the impeller eye and the inlet to the casing and impeller are so shaped and positioned that fluid passes through the gap in a substantially radially outward direction. In the centrifugal fan shown, a fixed or adjustable ring 11 is secured to the inlet nozzle 4 to co-operate with a rebate 12 in the impeller front shroud 2, whereby the air leaking to the impeller eye through the annular gap between the impeller and the inlet nozzle is caused to flow in a substantially radially outward direction without impinging on the main air flow. The leakage is reduced by a labyrinth seal comprising a flange 7 rotating with small clearance relative to a fixed flange 8. A modification omits the ring 11 but arranges the nozzle edge 6 to overlap the edge 5 of the front shroud.
Patent GB-852915-A (GB)
Title: Improvements in or relating to sensitised photographic emulsions
Inventor: NYS JEAN MARIE
IPC: G03C1/18
Filed: 1957-03-06
Abstract: 5-(Hexadecenyl-succinyl-amino)-indazolone is prepared by the method of example 1 of Specification 685,061 by heating 5-amino-indazolone hydrochloride and hexadecenyl succinic acid anhydride in pyridine. Specifications 812,924, 815,172 and Belgian Specification 510,948 also are referred to.ALSO:Carbocyanine dyes are referred to having one of the following general formulae:  <FORM:0852915/IV (c)/1> <FORM:0852915/IV (c)/2> wherein V and W are halogen atoms, V1 is halogen, carbalkoxy or carboxylic acyl, R1, R2, R3 and R4 are alkyl, substituted alkyl, allyl or aryl groups, P is hydrogen or alkyl, Q is hydrogen, alkyl or aryl, X is an anion or forms part of the group R1 or R2 to give an anhydride structure, n is 1 or 2 and n1 is 0, 1 or 2.  R1, R2, R3 and R4 may be methyl, ethyl, n-propyl, carbethoxymethyl, benzyl, p-carboxybenzyl, b -methylsulphonylamino-ethyl, o -acetylsulphonamido-propyl, o -acetylsulphonamido-butyl, hydroxyethyl or acetoxyethyl.  The dyes may be prepared by the methods described in Specifications 812,924, 815,172 and Belgian Specification 510,948 by selecting suitable starting materials.  Specification 685,061 also is referred to.
Patent GB-1058604-A (GB)
Title: Improvements in or relating to colour television systems
IPC: H04N11/16
Filed: 1964-02-21
Abstract: 1,058,604. Colour television. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Feb. 21, 1964 [March 1. 1963], No. 7440/64. Heading H4F. In a colour television system there is transmitted a luminance signal and a chrominance signal produced by quadrature amplitude modulation of a colour carrier wave by two colour-difference signals, the direction of the phase modulation of the chrominance signal being reversed at line frequency, and one of the side bands of the chrominance signal being attenuated or suppressed, whilst at a receiver for the system means are provided for respectively adding and subtracting the chrominance signal relating to corresponding points in successive line periods, whereby to derive outputs which when demodulated represent respectively the colour-difference signals without substantial cross-talk due to the attenuation or suppression of the pass band. The reversal of the direction of phase modulation may be effected in the manner described in Specification 1,005,855, e.g. by switching by 180 degrees the modulation axis of one of the colour difference signals. The chrominance signal is modulated with carrier suppression. The attenuation or suppression of the chrominance pass band is effected by a filter included either in the chrominance channel or in the channel for the combined luminance and chrominance signal. The latter method is preferred with the chrominance carrier located at the upper extremity of the luminance band and the filter having a Nyquist flank with the carrier frequency located at the minus 6 db. point. Reference is made to the transmission of the chrominance signal with enhanced amplitude to improve signal-to-noise ratio but at the cost of some measure of compatibility. Reference is also made to the use of filters in the receiver. The receiver's operation is based on a one-line-duration delay line through which the received chrominance signal is applied to two adding stages, the signal also being applied directly to one stage and via a 180 degrees phase reverser to the other. In addition, the adding stages also receive reference oscillation at chrominance carrier frequency, the phase of the oscillation applied to one stage being in quadrature with that applied to the other and also being subjected to 180 degrees phase reversals at line frequency. The outputs of the adding stages are applied to conventional amplitude demodulators to obtain the colourdifference signals.
Patent GB-753744-A (GB)
Title: Composition for preventing "loading" of cutting and abrading surfaces
Filed: 1954-03-15
Abstract: A lubricating composition for use in metal working comprises 65 parts tallow, 29 parts paraffin wax, 6 parts beeswax and urea. Optional ingredients are citric acid, oxalic acid, potassium citrate and a colouring agent such as Vienna red.
Patent GB-1459424-A (GB)
Title: Manufacture of shoes
IPC: A43D3/02
Filed: 1973-02-15
Abstract: 1459424 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 14 Feb 1974 [15 Feb 1973] 7471/73 Addition to 1313189 Heading A3B The forward locating member for temporarily retaining an insole on a last of Specification 1313189 is repositioned at the mid-region, instead of adjacent the toe, of the last. As shown, a forward locating member 6 having a C-shaped cutting edge 10 and a stem 12 is positioned just rearwardly of the hinge between the two parts 2, 3 of a hinged last. Alternatively the locating member 6 may be positioned just forwardly of the last hinge. A rear locating pin 7 is provided adjacent the heel of the last. An insole is placed on the bottom 4, 5 of the last and secured to the forward and rearward locating devices 6, 7 by hammering, &c. The cutting edge 10 compresses the insole locally and then cuts out a tab. Following lasting, the last 3, 4 is withdrawn from the boot, &c so made. The tab is bent back during withdrawal of the last 3, 4. Subsequently, the tab is returned to lie flat in the insole, and is covered by a sock.
Patent GB-267958-A (GB)
Title: Improvements in cracking hydrocarbon oils or their distillates by distillation underpressure
IPC: C10G9/24
Filed: 1927-03-17
Abstract: 267,958. Stransky, S., and Hansgirg, F. March 18, 1926, [Convention date]. Hydrocarbons, cracking.-In cracking hydrocarbons by heating under pressure, the heating is effected by electric resistances having large heating surfaces distributed throughout the liquid space of the still, which is also provided with an agitator. This enables the light hydrocarbons formed by the decomposition to be rapidly vaporized and removed. The temperature and pressure in the still may be controlled automatically; for example, by pyrometers regulating varying resistances or operating switches, &c. The hydrocarbons to be cracked may be passed in series through two or more stills. The relation between the gas space and the liquid space of the still which produces the highest yield of low-boiling products is formed experimentally and is maintained approximately constant. Oil to be treated is forced by a pump 24 through heat-exchangers: 18, 23 into a still 1 containing electric-resistance heaters 2 of large surface and fitted with an agitator 26. The vapours pass through a dephlegmator 13, filled with Raschig rings, and an outlet valve 15 controlled by a pyrometer 17 to maintain a definite temperature, to a condenser 18. The electric supply to the heaters 2 is controlled either by a pressure gauge 6 or a pyrometer, which operates a potential-adjusting device 4 in connection with a transformer 3. A definite level is maintained in the still 1 by means of a condenser formed of concentric tubes 10, 11 dipping into the oil. Variations in the level of oil cause variations in the dielectric constant of the condenser and these are utilized to vary the opening of a valve for the residual oil. The residual oil is discharged into an expansion chamber 21, the vapours from which pass to a condenser 22, and the unvaporized oil to the heat-exchanger 23.
Patent GB-645219-A (GB)
Title: Improvements in and relating to electric cookers
IPC: A47J37/08
Filed: 1948-03-11
Abstract: A periodically operated electric toaster as described for example, in Specification 568,498, has a primary heater and a thermally responsive timing device provided with a secondary heater for interrupting the primary heating, the secondary heater being arranged to increase the rate of heat input to the timer as its temperature rises.  In the preferred embodiment the timing device comprises a bi-metallic element surrounded by a heater element of a material having a positive temperature coefficient of resistance, such as pure nickel or nickel-iron alloy.  The heater is in series with the primary heater, and thereby absorbs more power as its temperature rises.  The primary heating is interrupted after the timer has been heated to a pre-determined high temperature and allowed to cool to a relatively low temperature.  The first toasting slice is heated for a longer period than subsequent slices to compensate for the heat absorbed by the toaster mass.
Patent GB-1206691-A (GB)
Title: Navigational aid system
Inventor: ROSCOE STANLEY NELSON
IPC: G01S19/35
Filed: 1968-02-15
Abstract: 1,206,691. Film strip projectors. HUGHES AIRCRAFT CO. Feb.15, 1968 [March 27, 1967], No.7560/68. Heading G2A. [Also in Divisions G1; H4] A navigational aid system for use on an aircraft, ship or submarine comprises a projector 25 providing a chart display of a selected area on a screen 10, on which a symbol 20 indicates the position of the craft and another projector displays desired path indicators RS1, VD1, there being means controlling the symbol 20 and indicator RS1 so that their relative location represents a navigational error R and means controlling the indicator VD1 to keep a distance from the indicator RS1 which is a predetermined function of the error R. The indicator VD1 may take the form of a line 18 equal in length to a gap between two parts 14, 16 of a line forming the indicator RS1. A computer 45, Fig.2, on an aircraft is fed both prior to and during flight with the necessary information to preset or control  (a) the indicators RS1, VD1 through a symbol generator 38 Figs.7-13 (not shown) (see specification ................) (b) synchro circuits 37, 41 for moving the chart display relative to the symbol 20 in accordance with X and Y co-ordinates from a resolver, Figs. 3-6 (not shown) and synchro circuit 127 for rotating the chart display through a prism 26  (c) synchro circuit 49 for setting a desired heading through a ring 43 and symbol 11 (d) synchro circuit 33 for controlling the symbol 20.  The area for chart display on the screen 10 (by projection employing a lamp 24, film strip 27, Pechan prism 26 and focusing lenses 28, 30, 23) is selected by means of a high speed motor driving the film strip 27 to change the frames depicting different map sections corresponding to the areas, the motor being controlled automatically or manually with feedback to the computer 45. In a similar system, Figs. 14-19 (not shown), a suitably biased cathode ray tube is controlled by a symbol generator to provide symbols on its screen which are focused by a lens system and reflected from a semi-transparent mirror to combine with a chart projection passing through the mirror for display on a screen.
Patent GB-1245379-A (GB)
Title: Process for the distillation of liquids
Inventor: MACDONALD JOHN SMITH
IPC: B01D1/00
Filed: 1970-02-17
Abstract: 1,245,379. Distillation of liquids subject to frothing. TOMATIN DISTILLERS CO. Ltd. 17 Feb., 1970, No. 7567/70. Heading B1B. During the distillation of a liquid subject to frothing, e.g. whisky, in a kettle 1 which is heated by a coil 2 supplied with steam, ,the level of froth above the liquid is maintained at or below a predetermined value by regulation of the rate of supply of steam to the coil in response to a change in pressure in the gas space above the liquid in the kettle wherein increase in frothing causes an increase in the gas pressure and a decrease in frothing causes a decrease in the gas pressure. The upper section of the kettle is provided with a bleed pipe 3 in communication with a diaphragm valve (or bellows) 4 which is mechanically linked to an air reducing valve 5; this valve being connected by an air line 8 to a vacuum-operated valve 9 in the steam pipe which supplies coil 2. When frothing interferes with the process of distillation, valve 4 causes a reduction of pressure in air line 8 whereby steam valve 9 is wholly or partially closed. As a result, the degree of frothing in the kettle is reduced with a consequent decrease in the pressure in the gas space causing the system to operate in reverse with the consequent opening of the steam valve. An idicator board 7 comprises green and red lights which are connected to an electric circuit containing micro-switch 6 such that, when the level of froth in the kettle is above that desired and the increase in pressure operates valve 4, the red light is displayed, otherwise the green light is shown. Instead of the hydraulic system, valve 4 may actuate valve 9 by means of an electric circuit.
Patent GB-402070-A (GB)
Title: Improvements in and relating to filters
IPC: B01D35/00
Filed: 1932-03-14
Abstract: 402,070. Filters. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT EXPLOITATIE VAN TEN BOSCH OCTROOIEN N. V., 25, Isaõc Evertslaan, Arnhem, Holland. March 14, 1932, No. 7573. Convention date, March 17, 1931. [Class 46.] Edge filters are built up of two sets of laminµ arranged alternately, one set having recesses 3 with rounded profile at the edge of the lamina and the other apertures 6 which, when the laminµ are piled in position, register with the recesses to form discharge passages for the filtrate. The laminae also have apertures 8 for the reception of connecting bolts, and apertures 7, which, when the laminae are cemented together, form fluid-tight passages for the reception or circulation of a heating medium. The edges of one set of plates may be set back relatively to those of the alternate plates or the edges of one set may be corrugated. Fig. 5 shows a form of lamina in which two of the recesses have inward extensions 13 which when the laminµ are piled together register with discharge passages formed by apertures 14, 15. Such plates are arranged in small groups, the extensions 13 registering for the members of a group but being out of register for members of different groups. An arrangement is described in which six filtering surfaces built up of laminµ in accordance with the invention form the wall of a filtering-chamber which has a hexagonal cross-section. The Specification as open to inspection under Sect. 91 describes also the use of laminae the edges of which are folded over one or more times. This subject-matter does not appear in the Specification as accepted.
Patent GB-1244936-A (GB)
Title: Apparatus for measuring electrical signals
Inventor: GILMOUR WILLIAM DUDLEY
IPC: G01T1/185
Filed: 1969-02-12
Abstract: 1,244,936. Sampling circuits. JOHN HEATHCOAT & CO. Ltd. 6 Feb., 1970 [12 Feb., 1969], No. 7576/69. Heading H3T. [Also in Division G1] Electric charges stored on a plurality of lowloss capacitors 2 (only one of which is shown), e.g. from ionisation chambers 1 or photoelectric cells, are sequentially sampled 3, 4 by a Miller integrating circuit 10, 11 having D.C. negative feedback from its drain to its source via a diode 16. After each capacitor 2 is sampled the integrator is reset by a switch. The output from the integrator may be digitized and stored from cycle to cycle.
Patent GB-704569-A (GB)
Title: An improved process for removing hair and wool from animal hides and skins
IPC: C14C1/06
Filed: 1952-03-26
Abstract: 704,569. Depilating skins. WOLF, K. March 26, 1952 [April 3, 1951], No. 7736/52. Class 76 In a process for removing hair and wool from animal hides and skins a flat carrier containing a water-insoluble alkaline earth metal sulphide, preferably paper loaded with calcium sulphide is sandwiched between two skins, flesh side inwards, which have been treated with an aqueous solution of a substance capable of reacting with the alkaline earth metal sulphide to form a water-soluble sulphide and a water-insoluble alkaline earth metal salt, the arrangement being repeated and pairs of skins packed in a pile. Suitable reagents for treating the skins are:-water-soluble sulphates, e.g. sodium sulphate, ammonium sulphate or potassium sulphate, water-soluble carbonates or bicarbonates, e.g. sodium carbonate, sodium bicarbonate or ammonium bicarbonate, or soluble borates, e.g. borax. The sides of the lowermost three or four pairs of skins may be protected from the liquid exuded from the pile by interposing protective sheets or foils between the pairs of skins and arranging them to project from the sides of the pile. Unhaired pelts doubled fleshside outwards may be used for this purpose.
Patent GB-577721-A (GB)
Title: Improvements in or relating to open texture fabrics and screens
IPC: E06B9/52
Filed: 1944-04-26
Abstract: An open texture fabric suitable for use as an insect screen for windows is composed of smooth composite threads of heavy denier obtained by binding together by impregnation with a compatible compound, high tenacity stretched filaments having a basis of an organic ester of cellulose.  The compatible compound is one which is capable of adhering to the particular organic ester of cellulose forming the base of the filaments.  It may be a cellulose derivative, e.g. a cellulose ester or a cellulose ether such as ethyl, methyl, or benzyl cellulose.  The impregnating compound may be applied to the filaments by application from a solution and the amount of such compound binding the filaments together may be 5-25 per cent of the original weight of the filaments.  The fabrics may be woven or netted in any desired pattern, but the openings must be small enough to prevent the passage of insects therethrough.  The open texture fabric may be held in place on a frame, after being stretched taut, by wooden or metallic strips fixed by nails, tacks, or staples, or the fabric may be fixed by an adhesive to the frame.  The fabric may be reinforced along the edges by cloth strips or tapes.  It may be mounted on spring rollers with the edges attached to guides operating in trackways.  The yarns going to form the composite thread may be stretched to the same or different degrees, and they may have the same or different acidyl values.  Several yarns may be plied together to give a total denier of 500-1500.  A group of filaments may be subjected to stretching continuously with or subsequently to production.  They may be softened by acetone vapour or by a mixture of acetone and water or alcohol, or by steam, or by dry heat and stretched many times their original length.  A thread made from several multi-filament yarns is impregnated with a solution of a cellulose derivative so as to form a composite thread which is like a monofil in that it has no tendency to fray or balloon and is free from interstices, and it also has high flexibility and strength.  In an example, ten yarns of stretched cellulose acetate filaments are plied together and run through a solution of ethyl cellulose in acetone and then through a solution of ethyl cellulose in benzene. After removal of solvent a smooth lustrous thread is obtained.  This is woven or netted to form an open texture fabric.
Patent GB-1386344-A (GB)
Title: Manufacture of multiple laminated conductor boards
IPC: H05K3/46
Filed: 1972-02-21
Abstract: 1386344 Printed circuits; inductors HOCHVAKUUM DRESDEN VEB 21 Feb 1972 7836/72 Headings H1R and H1T A multiple laminated conductor board is manufactured by applying alternate conductive and insulating layers to an insulating support element by evaporation or cathodic atomization in a vacuum, connections between adjacent conducting layers being provided through holes in the intervening insulating layer made by masks, programmed removal of the insulating material, charged particle or electromagnetic beam bombardment, electro-erosion or by etching. A conductive layer 3, Fig. 2, is evaporated on to a bonding agent 2 applied to one surface of an insulating support element 1, followed by evaporation of an insulating layer 18 over the conductor layer, any required holes 19 in the insulating layer and any conductor patterns in the conductor layer being formed by masking etching techniques, or by removal of material by charged particle or electromagnetic beam bombardment. Further conductive and insulating layers may be added as required. External components may be connected by inserting connector pins 9, 13 into holes 10, 14 formed in the support 1 and in the multiple laminate, said holes being lined when the last conductor layer to be connected to the component is applied to the laminate. A final insulating layer 12 is applied after soldering the connector pins into place. Single layer and multi-layer components, e.g. coils, capacitors may be formed in the conductive layers.
Patent GB-898255-A (GB)
Title: Improvements relating to display signs and the like
IPC: G09F7/10
Filed: 1960-03-07
Abstract: 898,255. Signs. MILLS, E. Feb. 2, 1961 [March 7, 1960], No. 7896/60. Class 3(2). A sign comprising a base 1 and grooved ribs 2 for insertion of sliders 5, is provided with rubber or plastic foam strip 4 and a layer of smooth plastic 4a to press against the sliders and hold them in position.
Patent GB-609430-A (GB)
Title: Improvements in pirns for shuttles
IPC: B65H75/10
Filed: 1946-03-14
Abstract: 609,430. Shuttle pirns. PAPER TUBES (BURY), Ltd., and ABBOTT, E. March 14, 1946, No. 7949. [Class 120(iii)] In pirns for shuttles for looms employing electric weft stop motions, a flanged metal ferrule A at the end of the pirn is pressed to provide a recess 4 or projection 5, Figs. 3 and 7, respectively for engagement with a corresponding pin or slot in or on the head of the shuttle tong.