baber/WOPTO huggingface dataset:
Patent GB-1471147-A (GB)
Title: Image analysers
IPC: H04N5/14
Filed: 1973-07-16
Abstract: 1471147 Television NUTRITIONAL RESEARCH UNIT Ltd [trading as HUNTING- DON INSTRUMENTS] 8 July 1974 [16 July 1973] 33791/73 Heading H4F An image analyser comprises n delay circuits 2-5 connected in series, where n is an integer divisible by 2, to which the video signal is applied, the output of all the delay circuits other than the n/2 delay circuit being added 7 and then subtracted 8 from the n/2 delay circuit 3 output after it has been multiplied 6 by n. As shown n equals 4 but it may be equal to 2, and in the event of a feature in the video signal the polarity of the output of the subtractor 8 changes at the half amplitude points of the leading and trailing edges of the feature so that the output of the subtractor can be utilized to detect these points and thus the feature. Specifically the output of subtractor 8 is compared 9 with a fixed potential, e.g. zero volts, to give output C of Fig. 3. To remove the noise which occurs away from the half-amplitude points of the transition edges the analyser includes a logic circuit made up of comparators 10-13, which receive a common threshold voltage and the video signals V 1 , V 2 , V 4  and V 5  (i.e. the same video signals that are summed in adder 7), and AND gates 14 and 17, and OR gates 15 and 16 connected as shown to derive detected signal F, Fig. 3. To overcome slow variations in the video signal background level and to relate the threshold voltage thereto, the threshold voltage is produced by the circuit shown in Fig. 2 which includes diodes D 1 -D 5  to which a lower shading limit D.C. level and the video signals V 1 , V 2 , V 4  and V 5  are supplied, the circuit being as shown and including a threshold voltage selector switch 30.
Patent GB-413942-A (GB)
Title: Process for producing tobacco free from nicotine
IPC: A24B15/26
Filed: 1933-12-01
Abstract: Tobacco is freed from nicotine, without affecting the aromatic constituents, by thoroughly moistening with water or steam and then extracting by means of an organic solvent, which is removed from the tobacco either by means of warm air, repeated moistening and repeated treatment with warm air, or by heating the tobacco in vacuo.  The solvent may be a volatile chlorhydrocarbon such as dichlorethylene, chloroform, carbon tetrachloride, or dichlormethane, and the process is preferably carried out at temperatures not exceeding 50 to 60 DEG C.
Patent GB-1255299-A (GB)
Title: Production of haloethylphosphonyl dihalides
Inventor: FIELD NATHAN DAVID
IPC: C07B61/00
Filed: 1970-07-13
Abstract: 1,255,299. 2-Haloethyl phosphonyl dihalides. GAF CORP. 13 July, 1970 [14 July, 1969], No. 33944/70. Heading C2P.  2-Haloethylphosphonyl dihalides are prepared by reacting a phosphorus oxyhalide with ethylene in the presence of a catalyst at 15 to 200 C. and under an ethylene pressure of 50 to 1000 p.s.i.g. until ethylene take up ceases. The preferred reactant is phosphorus oxychloride, and the reaction is preferably carried out in a closed system. The reaction may be carried out in the presence of a solvent, and the product may be recovered by distilling off the excess phosphorus oxyhalide and solvent, if present, and then distilling the residue.
Patent GB-862209-A (GB)
Title: Refractory shell moulds
Inventor: ARCHDALE ROBERT WILLIAM
IPC: B22C1/08
Filed: 1958-10-23
Abstract: The fusible pattern is removed from its investment by surrounding the invested pattern with a discrete mass which has been heated to a temperature sufficient to melt out the pattern. A wax pattern is invested by several dip coatings of a silica sol comprising a colloidal suspension of silica in water, water, nitric acid, a wetting agent, an anti-foaming agent and alumina, with intermediate stucco coatings of alumina, and waterproof coatings of 40% ethyl silicate in methyl isobutyl carbinal.  The stucco coatings on the end of the runner portion of the pattern are of heat conductive aluminium or other metal filings or shot. As an alternative to the silica sol coating alumina in acid hydrolised ethyl silicate solution may be used.  The pattern may be vibrated during dipping.  The invested pattern is then held inverted in a container by a flange around the runner portion or by a refractory layer rammed around the end portion of the runner and hardened by CO2, and granular fireclay grog heated to 300 DEG C. is then poured around the invested pattern to cause the wax to melt and run out.  The container may be vibrated.  The mould may be poured while still backed up by the grog, or if an unbacked mould is to be used, a further dip coating of a solution of monoaluminium phosphate with or without alumina and a suitable surpension agent, may be applied to the coated patterns.
Patent GB-440141-A (GB)
Title: Improvements in or relating to domestic hot water supply systems
IPC: F24D17/00
Filed: 1934-11-28
Abstract: 440,141. Heating water. ROLYAT TANK CO., Ltd., Toft Green, and PENROSE, H., 15, Rockingham Avenue, Hewarth, both in York. Nov. 28, 1934, No. 34137. [Class 64 (i)] In a domestic hot - water supply system of the kind in which the heated water from a fireback boiler or gas boiler is circulated through a closed tank or calorifier 3 within a larger tank 4 so as to heat the water in the latter, the tanks 4, 3, are fed by pipes 7, 8 from separate cold water chambers 5, 6 respectively which are supplied by overflow from an auxiliary chamber 12 into which the float valve 13 delivers. The float valve 13 is operated by a float 14 in the chamber 5 supplying the storage tank 4. A partition 11 is provided between the auxiliary chamber 12 and the chamber 5 above the normal level in chamber 6, and a pipe 16 sloping down from the partition 11 to the chamber 6 forms a direct overflow connection from the auxiliary chamber 12 through a partition 9 to the chamber 6 and determines the level in the latter. A hole 17 of such size that it will not pass the volume of water as fast as it is delivered to the chamber 12 is provided in the partition 11 below the pipe 16 and determines a level below which the auxiliary chamber cannot empty. An expansion pipe 15 delivering into the chamber 6 depends into the inner tank 3 below the main level of the system to ensure an expansion space in the top of the tank 3. Specification 427,925 is referred to.
Patent GB-1015127-A (GB)
Title: Improvements in or relating to coating apparatus for web material
IPC: D06B1/12
Filed: 1962-09-06
Abstract: 1,015,127. Coating webs. BLACK-CLAWSON CO. Sept. 6, 1962 [Sept. 6, 1961], No.34202/62. Addition to 921,494. Heading D1L. Apparatus for coating one surface of a moving web W comprises a flexible blade 15 arranged to press the web against a supporting member (preferably a roller 10) and a plurality of individual assemblies 30 arranged along the length of the blade so that localized adjustment of the contact pressure between the blade and the web may be effected. In the form shown, the coating bath 11 is formed in a member 12 mounted on a bar 13 which may be raised and lowered as described in the parent Specification. The flexible blade lies between member 12 and a holder bar 20 which is mounted on a member 21 pivotable about a shaft 22 so that an actuator 23 may shift the bar 20 out of its operative position e.g. so that blade 15 may be replaced. The blade 15 is initially aligned e.g. by the method disclosed in Specification 998,737 and is clamped in position by a pressurizable tube 27 mounted in a groove in bar 20. The blade is urged against the web W by a further pressurizable tube 29 mounted in a series of adjustable blocks 32. Each block 32 is mounted on a base 31 bolted to bar 20 and has a central slot 40 engaging a portion 41 of the base so as to be slidable normal to blade 15. A screw adjustor 44 is provided to move block 32 relative to its base 31 and so adjust the contact pressure of blade and web in its locality. A spring plate 55 and screw 56 are provided to hold block 32 in its adjusted position. The groove 39 in each block 32 is not located centrally thereof so that when the block is reversed (dotted lines Fig. 2) the tube 29 engages blade 15 closer to its end.
Patent GB-177843-A (GB)
Title: Improvements in and relating to vices
IPC: B25B1/24
Filed: 1920-12-03
Abstract: 177,843. Petz, H. L. Dec. 3, 1920. Vices.-In a vice of the kind having a square- or polygonal jaw rotatably mounted on the body, the jaw is fixed in its various positions by means of a spring-controlled pin engaging recesses in the rotating jaw. The square jaw f is mounted on the conical part of the screw e screwed at an angle into the vice body b, and is fixed by means of the spring pin i which snaps into recesses k in the jaw. Each side of the latter has removable gripping faces h of different shape, and the screw e is provided with a handle g.
Patent GB-364753-A (GB)
Title: Improvements in and relating to methods of manufacturing table jellies and apparatus therefor
IPC: A23L21/10
Filed: 1930-11-13
Abstract: 364,753. Moulding table jellies &c. COHEN, M., 6, Royal Crescent, Harrogate, and ROWNTREE & CO., Ltd., Wiggington Road, York. Nov. 13, 1930, No. 34216. [Class 87 (ii).] Table jellies and like confections are made by introducing the liquid jelly into a mould provided with partitions which produce spaces or indentations in the moulded jelly to enable it readily to be divided into smaller pieces or to dissolve quickly without subdivision, the mould being provided with a bottom which is wholly or partly removable or is formed by a separate preferably cooled surface to enable the jelly to be ejected on setting, or with a fixed bottom, the partitions being removable together with the jelly which is then ejected from the partitions. In the example given, the moulds consist of frames 8 carried by a pair of endless chains 1 which pass over chain wheels 2 .. 7, the frames being attached at each end to the chains. Each frame 8 is divided by partitions 10 into three moulds which are open at top and bottom and are divided by partitions 9 extending from the bottom to below the top of the frame. A pair of endless chains 11 supported by wheels 12 .. 15 carry between them a series of plates which by adjustment of wheels 13, 14 are pressed against the bottom edges of the moulds and form the bottoms thereof as long as the jelly remains liquid. The chains 1 .. 11 are driven in synchronism. The liquid jelly is supplied to the moulds from a depositor 16 and the moulds then pass to a cooler 17. The jellies are finally removed from the moulds by ejectors 25 carried by a pair of chains 18 passing over wheels 19 .. 22 and driven in synchronism with chains 1. The ejectors are shaped correspondingly to the moulds 8, having channels or spaces into which the partitions 9 enter and are pressed, by adjustment of wheels 21, 22, against the surface of the jelly. A conveyer 23 removes the ejected jellies 24. The empty moulds may be passed through a washing apparatus on their way to be refilled. To improve the appearance of the jellies, the bottom plates of the moulds may be removed before the jelly is completely set, thus producing convex surfaces between the partitions. Ejection of the jellies from the moulds may also be effected by compressed air, high-pressure water, or suction applied at the opposite surface of the mould, alone or in combination with the ejectors 25. The bottoms of the moulds may have patterns which it is desired to form on the jelly. The moulds may be filled with the same jelly, or differently coloured or flavoured jellies or both may be deposited in different sections of a mould and united by a common uncoloured and unflavoured portion. Specification 364,250, [Group VI], is referred to.
Patent GB-784074-A (GB)
Title: Devices for use in sorting roots of root crops from waste material
Inventor: HAWKINS JOHN CLEMENT
IPC: A01D33/08
Filed: 1954-11-08
Abstract: 784,074. Sortingsolid materials. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 26, 1955 [Nov. 8, 1954], No. 34537/56. Divided out of 784,073 [Group XXX]. Class 117 A wheeled potato harvester is hauled by a tractor and potatoes together with large stones and clods of earth are fed into an elevating drum 17 of the kind described in Specification 784,073 [Group XXX], where some separation of smaller stones &c. takes place, and the potatoes, larger stones &c are delivered by the drum on to a rotary sorting table 25 and are carried round in front of sorters. The sorters select the potatoes and deposit them on to an annular shelf 37 rotating with the table, and a deflector 42 feeds the potatoes into a bagging-off shoot 43. Waste material is swept off the table by a fixed deflector 40 and into a shoot 41. When the receptacle underneath the shoot 43 is full a deflector 44 is swung into position to feed the potatoes to a second shoot 46. A fixed frustoconical shoot 38 surrounds the shelf 37. The table is driven about a shaft 28 and consists of a canvas sheet 26 attached to a framework 27 and kept taut by springs 34 connected between the sheet and radial bolts 33 attached to a cup-shaped member 32. A frusto-conical shield 36 surrounds the inner edge of the sheet. Specification 747,647 also is referred to.
Patent GB-430021-A (GB)
Title: Improvements in and relating to the insulation of water-cooled furnace walls for water tube boilers
IPC: F23M5/08
Filed: 1933-12-09
Abstract: 430,021. Furnace walls. CAPE ASBESTOS CO., Ltd., 26, Holborn Viaduct, London, and KING, F. W., 18, Hurstbourne Gardens, Barking, Essex. Dec. 9, 1933, No. 34732. [Class 51 (i)] In a method of insulating water-cooled furnace walls for water tube boilers, the insulation is applied in the form of one or more layers of panelling composed of butted slabs of non-plastic insulating material removably held in place by a system of strip metal banding secured by bolts anchored to the wall face and covering the joints of the outermost-layer of panelling. In the form shown the wall is built up from water tubes P enclosed between hollow wall blocks F and clamps secured together by bolts B. The spaces or cells within the blocks F are filled with a plastic composition p such as asbestos fibre and diatomaceous earth or with moulded blocks of insulating-material so as to form a flat outer surface. Against this outer surface is laid an inner layer of slabs I<1> of asbestos fibre or other insulating material, the edges being butted together at J<1>; a second layer of insulating slabs I<2> which break joint with the inner layer and are butted at J<2>; and a protective layer comprising slabs L of stiff material such as asbestos sheeting or millboard. The layers are held in place by a lattice of short strips S of sheet metal held at their ends beneath the tongues of star washers W secured by bolts b. The bolts b are anchored to the wall bolts B directly by screwing into or on to the bolts B or indirectly by means of washers or strips held by the bolts B and secured to or engaging the bolts b. In one form the bolts b are hooked to engage eyes in strips K formed with tongues k<x> which may be bent over to secure the slabs I'.
Patent GB-450071-A (GB)
Title: Improvements in or relating to the air cooling of the cylinders of internal-combustion engines
IPC: F01P7/02
Filed: 1935-12-18
Abstract: 450,071. Cooling cylinders. YACCO S. A. F., 42, Avenue de la Grand-Armee, Paris. Dec. 18, 1935, No. 35098. Convention date, Dec. 18, 1934. [Class 7 (ii)] In an engine in which cooling-air is led to the cylinders A by a casing 1, baffles 6 protect the cylinders from direct blasts of air and so prevent over-cooling. Preferably, the baffles are provided adjacent the cylinder bases only, and comprise plates 6 curved round the cylinder ribs, or plates 10, 11 which deflect the air stream to the two sides of each cylinder. The front cylinder is protected by a deflector 7 integral with the casing. The spaces between the cylinders are closed by baffles 13 which, with a casing 2, form the outlet passage B<2>. This casing and the inlet casing 1 may, however, be splayed as shown dotted at 2<1> to produce divergent and convergent passages respectively. An additional port 9 admits air to the first cylinder head. In a V-engine, two splayed inlet baffles, like the casing 1, are arranged in the V, and have inlet openings, the areas of which differ to allow for the oblique air flow produced by the propeller driven by the engine. The flow of air may be adjusted by valves and shutters.
Patent GB-348666-A (GB)
Title: Improvements in typewriters
IPC: B41J1/32
Filed: 1929-11-18
Abstract: 348,666. Typewriters. SANDER, C. G., 4, Knaresborough Place, Earl's Court, London. Nov. 18, 1929, Nos. 35259/29 and 27816/30. Addition to 317,501, [Class 100 (iv), Typewriters &c.]. [Class 100 (iv).] Index type-wheel machines.-In the machine described in the parent Specification, the shaft 3, Fig. 2, of the type-drum is rotated and tilted by means of a plunger a mounted on the carriage 7 of the shaft. The plunger and the shaft may be mounted in a slide d guided by a cross-piece f of the carriage, the plunger being connected to the shaft by gears b, c, and being provided with a knob g and a returning spring h. Aligning for impression.-The shaft 3 is provided with a notched disc 15 and a plain disc n co-operating with a blade j and a rack l to align the type-drum. The rack is preferably hinged or loosely mounted and spring-supported. The disc may be replaced by a spring-pressed finger on the carriage. Platen rotation for writing music.-A ratchetwheel q, Fig. 5, on the shaft of the platen 1 is coupled by a pawl r to a loose sector o provided with knobs o<1>, and a scale p which is arranged under a pointer w and indicater lines and spaces. The sector is formed with teeth s co-operating with a detent t. Printing-line indicators.-A pivoted pointer x, Fig. 5, indicates the printing line on the platen 1.
Patent GB-1502974-A (GB)
Title: Internal combustion engine having a varying piston displacement
IPC: F02B25/26
Filed: 1975-08-26
Abstract: 1502974 Variable piston displacement engine INSTITUTUL NATIONAL PENTRU CREATIE STIINTIFICA SI TEHNICA-INCREST 26 Aug 1975 [2 Sept 1974] 35272/75 Heading F1B A variable displacement engine has its piston stroke and mean piston position both variable to compensate for changes in the nature of the load on the output shaft 11. A spherical swash-plate 5, translating the reciprocation of the piston 2 into an annular motion of the end of the drive-shaft 10, is arranged to move axially with respect to the crank-case by being mounted by bearings 6 in slide 7. Axial movement of the slide varies the mean piston position and simultaneously varies the stroke due to the co-operation of the driveshaft slide 14 and the inclined grooves a in the output shaft fork by causing the angle of the driveshaft 10 to the output shaft 11 to alter. The axial position of the slide 7 may be controlled mechanically or hydraulically via a resilient unit 9 which opposes the forces generated by the pistons. The unit 9 may be operated automatically or manually. Various angles of the grooves a providing differing relationships between stroke and compression are disclosed in the Specification.
Patent GB-1119074-A (GB)
Title: Improvements in devices for measuring angles
IPC: G01B11/275
Filed: 1965-08-18
Abstract: 1,119,074. Measuring angles. ROBERT BOSCH, G.m.b.H. Aug. 18, 1965 [Aug. 19, 1964], No. 35336/65. Heading G1X. A device for measuring angles, particularly of vehicle wheels comprises at least one mirror 2 attached to the member 1 whose angles are to be measured, a light source on optical means 31 capable of projecting a light beam along an optical path from the light source on to the mirror and thence on to a reading screen 41 provided with rectangular co-ordinates, and a scale 28 and cross hairs 29 both arranged in the section of the optical path between the light source and the mirror. Each wheel mirror system comprises three individual mirrors, the two outer ones being inclined to the central mirror. For measuring vehicle wheel angles, two projectors 4 are aligned with the cross hairs of the image of one coinciding with the co-ordinate axes of the reading screen of the other, the distance between the projectors being large enough for the width of most vehicles. The vehicle is then driven between the projectors until the axle is disposed approximately along the optical axis of the two projectors. Each projector may be switch operated to cut down the intensity of the bulb. To test that the wheels are perpendicular to the wheel axis, the wheels are raised from the ground and rotated and provided the position of the image of the scale is stationary, then the wheel is correct.
Patent GB-1437017-A (GB)
Title: Light sensitive layer transfer material
Inventor: RUCKERT H
IPC: C08L61/00
Filed: 1973-07-25
Abstract: 1437017 A positive-working; photo-resist stripping material HOECHST AG 25 July 1973 [27 July 1972] 35372/73 Heading G2C A positive-working, photo-resist stripping material comprises a support and a layer strippable from the support, said layer comprising an o-naphthoquinone-diazide-sulphonic acid ester or amide, acrylic resin, and alkali-soluble phenolic resin. The light-sensitive layer may also contain a polyvinyl ether to improve the stripping quality of the layer and the layer may be laminated to a protective film. In the examples, a polyester support subbed with polyvinyl alcohol and trichloracetic acid or a polypropylene support is coated with a layer containing the naphthoquinone diazide, novolak resin, acrylic polymer, polyvinyl ether and optionally vinyl acetate/crotonic acid copolymer or a dye and covered with a covering film. The material is image-wise exposed and developed to remove the exposed areas and optionally the remaining unexposed areas transferred whilst heating and pressing to a receptor surface. Colour proofs may be produced by such a transfer process using differently coloured dyes for each transfer. Alternatively, the material may be laminated to a screen fabric to produce a screen stencil or two materials may be laminated to either side of an electrical conductor to produce electrical articles. In another embodiment, the material may be laminated to an opaque film and exposed through the support before this is stripped off. The developer may be tri sodium phosphate/ butanol/water or an aqueous solution of methyl cellulose, sodium phosphates and sodium metasilicate.
Patent GB-1021166-A (GB)
Title: Improvements in or relating to circuit arrangements including two gaseous and/or vapour discharge lamps
IPC: H05B41/232
Filed: 1964-08-31
Abstract: 1,021,166. Supply circuits for discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 31, 1964 [Sept. 3, 1963], No. 35521/64. Heading H2H. The thermionic electrodes 8, 9 of a discharge lamp 4 inductively stabilized by a choke coil 3 are supplied from the secondary windings 10, 11 of a choke coil 5 which with a capacitor 6 provides capacitive stabilization for a second discharge lamp 7, whose electrodes 12, 13 are supplied from the windings 14, 15 of a transformer 16 in parallel with the lamp 4. The method of operation is described and typical values given of current and voltage in the lamp circuits for a 240-volt, 50-cycle supply.
Patent GB-324470-A (GB)
Title: Improvements in or relating to tight joints for engine cylinders and the like
IPC: F16J15/08
Filed: 1928-12-03
Abstract: 324,470. Birkigt, M. Nov. 9, 1928, [Convention date]. Joint-making packing.-In an internal-combustion engine wherein the cylinder a is screwed into a jacket b, the joint c between the parts comprises a packing-ring of bellows form with elastically-deformable, plane bearing-surfaces engaging the cylinder and jacket respectively. The packing is made by turning or spinning spring steel. In the construction shown in Fig. 2, the packing is of N-shape with end plane surfaces c. A number of N-shaped elements may be combined. Similarly M-shaped elements, single or multiple. may be used. Any number of bands may be provided as shown in Fig. 9. One or more, U-shaped elements may be used. A construction with extended bearing surface is shown in Fig. 14.