baber/WOPTO huggingface dataset:
Patent GB-242381-A (GB)
Title: Improvements relating to electrical reverse current cut-out apparatus
IPC: H01H83/08
Filed: 1924-09-02
Abstract: 242,381. Railing, M. J., Garrard, C. C., and Wilson, W. Sept. 2, 1924. Electromagnetic switches. - The ampere-hour meter used in a battery charging apparatus is provided with means enabling it to function as a reverse current relay or cut-out. For this purpose a spur wheel a of the meter meshes with a toothed sector b, the spindle of which carries a drum c, which is either of insulating material with a conducting segment d let into it or of conducting material with an insulating segment let into it. A spring f tends to hold the sector b in the central position shown. During charging a rotates clockwise which causes the sector b to rotate counter-clockwise till its last tooth rides over the teeth of the wheel a. Should a reverse current occur, the wheel a will rotate counter-clockwise which will cause the sector b to rotate clockwise till, after a time-lag, the segment d engages the contact e and either short circuits or breaks the circuit of a retaining electromagnet which holds closed a switch between the generator and battery.
Patent GB-1176752-A (GB)
Title: Dosimeter.
IPC: G05B21/02
Filed: 1968-05-01
Abstract: 1,176,752. Gas analysis. MINE SAFETY APPLIANCES CO. May 1, 1968 [May 2, 1967], No.20672/68. Heading G1B. A dosimeter comprises a receptacle, shown in section in Fig.3, having back and side walls and an open front, a colorimetric strip 12 which is sensitive to a predetermined gas and also sensitive to light disposed in a recess 6 in the back of the receptacle, a shield mounted in the receptacle on a hinge pin 18 for normally covering the strip to protect it from direct light, the shield being spaced from the back wall of the receptacle by a leg 20 thereon to expose the area behind the shield to the surrounding atmosphere, colour standards 14 in the receptacle and a tab 21 on the shield to enable it to be temporarily pivoted out of the receptacle far enough so that the colour of the strip 12 can be compared with the standards 14. The front of the recess 6 is provided with a partition 8 provided at its upper end with an opening 9. Most of the partition is opaque but a short length below the opening 9 is transparent to form a clear window 10. Spring wires 13 hold the strip 12 pressed against the partition 8. That part of the strip 12 disposed at the opening 9 will be exposed to the atmosphere and will change colour if the atmosphere contains the predetermined gas. The strip at the opening 9 may be compared with the colour standards 14 by pivoting the shield 16 against the action of a spring 19 which normally holds it closed in the receptacle. If desired the shield may be provided with a central opening 23 containing a filter for light which affects the strip 12. Discoloration of the strip at the opening 9 can then be compared with that behind the window 10 which is not exposed to the atmosphere, enabling a preliminary check to be made without movement of the shield 16. The Specification refers to the use of a strip impregnated with bindone for the detection of hydrazine in air.
Patent GB-597192-A (GB)
Title: Improvements in books
IPC: B42F13/12
Filed: 1945-08-11
Abstract: 597,192. Books. RAYON, Ltd., C. L., and PEACOCK, G. W. Aug. 11, 1945, No. 20674. [Classes 16 and 146 (i)] A book, which may have a cover 21, has a wide unprinted margin 12 adjacent to the bound edge in which two or more circular perforations 13 are formed, the leaves 10 being secured together by wire 15 or other fastening means placed directly opposite the perforations in order to strengthen and reinforce the book edge. The book or several books can then be placed on the posts 19 of a loose leaf binder 16, the binder having spaced flaps 18 on which are fixed the posts 19 and press stud fasteners 20.
Patent GB-713190-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F3/02
Filed: 1951-09-01
Abstract: 713,190. Wet presses of paper-making machines. HEYS. R. C.Aug. 25, 1952 [Sept. 1, 1951], No. 20677/51.Class 96 A wet web 24, Fig. 2, on a press felt 20 of a paper-making machine passes. over a suction chamber 30 formed by rolls 23, 28 and 29, and end-plates 26, air, and water expressed at the nip and drawn through the felt &c., being drawn off at 40. The felt travels over a perforated plate 36 supported from brackets 37 containing leaf springs 38. In. a modification, air under pressure is supplied to a similar chamber 41, Fig. 6, above a web 47 and a felt 42 also supported by a perforated plate and leaf springs in brackets. In other modifications (1) the roll 29 is substituted by a plate with water, air, or steam seals where the plate abuts the rolls 23, 28; (2) the lower press roll 23 has an internal suction box and a perforated shell, suction from the box exhausting the chamber 30; (3) there is a suction chamber before and after the nip of the wet press rolls; and (4) the latter chamber is located between two lower press rolls coacting with one top press roll.
Patent GB-203858-A (GB)
Title: Improvements in and relating to glass feeding machines
IPC: C03B7/16
Filed: 1922-07-28
Abstract: 203,858. Pleukharp, C. W., and Raynes, H. July 28, 1922. Delivering molten metal.-An automatic feeding device has means by which the molten glass can be supplied from a single delivery aperture to any one of a number of stations, and comprises a number of reciprocating troughs each of which receives a charge and delivers it to an inclined shoot, the mechanism permitting the delivery of charges of different weight to the different shoots. The metal is contained in a forehearth 11, and is fed through a delivery aperture 12 beneath which is a shearing device 13 worked by a piston 14 in a cylinder 15. A number of inclined shoots 18 extend radially outwards beneath the forehearth, and a reciprocating feed trough 19 co-operates with the upper end of each shoot. Each trough is fixed on an arm 20, which is pivoted at its lower end to the framework 28, and is rocked 'between the positions shown in full and dotted lines by means of a piston 24 in a cylinder 25. The pivot point of the arm 20 can be adjusted to vary the inclinations of the trough to suit different conditions of work. Compressed air is admitted to the cylinders 15 and 25 by a valve 36 operated by a cam A, the cylinder 15 being connected to each of the valves 36 so that the shears are operated in conjunction with each of the reciprocating troughs. The cams A are so set on their shafts that the troughs are operated successively, and these cams may be of varying shapes in order that the time during which the trough is beneath the outlet 12, and therefore the weight of the charge it receives, may be varied.
Patent GB-632367-A (GB)
Title: Improvements in or relating to optical systems
IPC: G02B17/08
Filed: 1946-07-11
Abstract: 632,367. Optical systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. July 11, 1946, No. 20739. Convention date, Oct. 10, 1939. [Class 97 (i)] In a Schmidt system comprising a spherical mirror and a correcting element placed at or near the centre of curvature thereof, the element consists of moulded or cast material. Suitable materials comprise benzyl- or nitrocellulose or synthetic resins such as polymerized vinyl-compounds, phenol resins or methacrylic acid exters. Reference has been directed by the Comptroller to Specification 537,738.
Patent GB-802627-A (GB)
Title: Improvements in driving mechanisms for the shafts of felting rollers
IPC: D06C17/02
Filed: 1955-07-19
Abstract: 802,627. Swash-plate mechanism. BYWATER, Ltd., W., and O'BYRNE, B. July 19, 1955, No. 20807/55. Class 80 (3). [Also in Group VIII] In a felting machine a motor-driven swashplate 7 in a housing 1 has diametrically opposite arms connected through trunnions 9 to a pair of reciprocable shafts 3 which are coupled to the non-rotatable shafts 17 of a pair of felting rollers so that the latter are reciprocated as they rotate. Alternatively the shafts 3 may themselves carry the rollers. The housing 1 is partly filled with oil, having a gauge 14 and breather pipe 16, and the shafts 3 have flexible covers 20. Each felting roller, Fig. 3 (not shown), is rotatably mounted on a shaft 17 through pairs of bearings and the remote end of the shaft is slidable in a bearing incorporating an oil reservoir.
Patent GB-778918-A (GB)
Title: Improvements in or relating to reinforced concrete structures
IPC: E04C5/20
Filed: 1954-07-16
Abstract: 778,918. Reinforced concrete. FELDMANN, A. July 11, 1955 [July 16, 1954], No. 20832/54. Class 20(4)  Cover rings for positioning a reinforcing structure relative to a mould 21 before concrete is cast therein are each composed of two complementary concrete blocks 2, 3 which are formed respectively with recesses 5, 6 in their opposed faces 4, 7 to seat around a bar 8 in the structure, the free ends 14, 15 of a loop of wire 9, made e.g. of soft iron and cast into both blocks to act as a reinforcement and hinge them together, being twisted together to clamp the block 2, 3 around the respective bar 8 at the required position. When the desired number of cover rings have been secured to the reinforcing structure, the latter is placed in the mould, alternatively the mould is erected round the structure. The curved peripheral edges of the blocks 2, 3 are bevelled at 18, 18 so that the finer particles of concrete can flow toward the point of contact 20 with the mould, inclined surfaces 17 formed adjacent the exposed hinge part 16 of the wire 9 permitting greater angular movement of the blocks during positioning around a bar 8. The cover rings, of polygonal cross-section having at least four sides. may be of various sizes, alternatively the control aperture of each cover ring can be of standard character, and the ring ran be adapted to receive inserts made with various internal diameters. Two lengths of wire joined to an external hinge may be used instead of a single wire 9. For vertical structures frusto-conical blocks 2. 3 as shown in Fig. 3 are used. Another type of cover ring, not shown, is provided with a corrugated outer surface for positioning in corners of the mould.
Patent GB-847887-A (GB)
Title: Animal feeds
IPC: A23K20/195
Filed: 1958-06-30
Abstract: An animal feed composition comprises a nutritionally-balanced feed together with a small proportion, e.g. 1 to 40 grams per ton of feed, of an oleandomycin antibiotic compound which may be oleandomycin base itself, an acid addition salt, e.g. the hydrochloride, sulphate &c., or a lower polyacyl ester of oleandomycin having 2 to 4 carbon atoms in the acyl moiety. Specification 779,257 is referred to.
Patent GB-170099-A (GB)
Title: Improved apparatus for playing a game
IPC: A63F9/14
Filed: 1920-07-12
Abstract: 170,099. Lawes, C. D. July 12, 1920. No Patent granted (Sealing fee not paid). Race games, mechanical.-Relates to apparatus of the type in which objects 19, Fig. 2, are propelled from a starting to a finishing post by means of cords 14 attached to the objects and to winding-spools 6 slidably mounted upon driving shafts 1 having hand-wheels 4 and speed-governors 5, which automatically disconnect the spools from their shafts when the speed of the latter exceed a predetermined maximum, and consists in providing means for automatically disengaging the spools from their shafts when any one of the objects reaches the finishing post. As shown, the spools are maintained in driving connection with their shafts by arms 8, secured to a common shaft 9, which is controlled by the attendant. The shaft 9 is held in position through an arm 33, Fig. 3, connected by a link 34 to a pawl 35, which is pivoted to the casing and engages a depending stop-pawl 37 carrying the armatures 38 of an electromagnet 32. On one of the objects reaching the finishing-post, it engages a plunger 40 carried by a contact 27, Fig. 4, which completes first the circuit through the lamp 30 situated above the object, and then that through the electromagnet, thus releasing the stop pawl and allowing the arm 33 to fall and the spools to disconnect from their shafts. The objects then fall to the starting-post and the contact 27 engages permanently with the contact 26 and maintains the circuit through the lamp situated above the winning object. At the commencement of a race, the spools are simultaneously engaged with their shafts through a cord 41, which is attached to the link 34 or the arm 33 and actuated by the attendant. Reference has been directed by the Comptroller to Specification 168,373.
Patent GB-138661-A (GB)
Title: Improvements in apparatus for mixing air and gas in airship engines
IPC: F02B43/00
Filed: 1918-12-14
Abstract: 138,661. Bellamy, V. A. F., and Binding, A. O. Dec. 14, 1918. Drawings to Specification. Aerostats.-The buoyancy of an airship may be reduced by supplying hydrogen from the envelope to a mixing-device fer air and gas which supplies the engine.
Patent GB-835802-A (GB)
Title: Process for the production of new anilides and salts thereof
IPC: C07D295/12
Filed: 1957-07-03
Abstract: The invention comprises anilides and their acid addition salts of the formula <FORM:0835802/IV (b)/1> wherein R1 and R2 are straight or branched alkylene radicals, Am is a secondary or tertiary amino group or a nitrogen atom forming part of the ring of a heterocyclic base, R3 is chlorine, bromine or methoxy, R4 is hydrogen or when R3 is chlorine or bromine, may also be methyl, and their preparation by reacting an acid anilide of the formula <FORM:0835802/IV (b)/2> with an amine of the formula X1-R2-Am, wherein one of the symbols X1 represents a halogen atom and the other represents the group -NH (alkyl or aralkyl).  More generally, the compounds may be prepared by reacting the appropriate substituted aniline or a reactive derivative thereof with an acid HOOC.R1.N (alkyl or aralkyl) -R2-Am or a reactive derivative thereof such as a halide, ester or anhydride.  In place of the above amino-acid or derivative thereof, a similar compound containing a group which is subsequently converted into the amino group Am may be used.  Products in which Am is a primary or secondary amino group may be further alkylated to secondary or tertiary amino compounds.  The products are used as local anaesthetics, suitably in the form of salts such as the sulphate, hydrochloride, hydrobromide, phosphate, acetate, glycolate, citrate, succinate, fumarate, maleate, dihydroxymaleate, methane sulphonate, and hydroxyethane sulphonate.  Examples describe the preparation of the 2-chloroanilides of N-b -pyrrolidino - ethyl - N - benzyl - aminoacetic, N - b  - pyrrolidinoethyl - N - methyl - amino-acetic, N - b  - pyrrolidinoethyl - N - methyl - a -aminopropionic, N - b  - diethylaminoethyl - N - methyl - a  - aminopropionic, N - b  - diethylamino - ethyl - N - methyl - aminoacetic, N - b -piperidinoethyl - N - methyl - aminoacetic, N - b  - pyrrolidinoethyl - N - ethyl - aminoacetic, N - b  - piperidinoethyl - N - methylaminoacetic, N - b  - piperidinoethyl - N - ethylaminoacetic, N - b  - diethylaminoethyl - N - ethyl - aminoacetic, N - b  - dimethylaminoethyl - N - methyl - aminoacetic and N - b -dimethylaminoethyl - N - ethyl - aminoacetic acids; the 2 - bromoanilides of N - b  - diethylaminoethyl - N - methyl - aminoacetic and N-b  - pyrrolidinoethyl - N - ethyl aminoacetic acids; the 2-methoxyanilides of N-b -diethylaminoethyl - N - methyl - aminoacetic and N-b  - pyrrolidinoethyl - N - methyl - aminoacetic acids and the 2-chloro-5-methyl anilide of N-b -pyrrolidinoethyl - N - methyl - aminoacetic acid.  N - Methylaminoacetic acid 2 - chloroanilide is made by the reaction of methylamine with chloracetic acid-2-chloroanilide.  Chloracetic acid 2-methoxy-anilide is made by the reaction of chloracetyl chloride with o-methoxyaniline in the presence of sodium acetate.
Patent GB-958964-A (GB)
Title: Improvements in or relating to xeroprinting
IPC: G03G13/22
Filed: 1960-06-16
Abstract: 958,964. Xerographic masters. RANKXEROX Ltd. June 16,1960 [June 23, 1959], No. 21144/60. Drawings to Specification. Heading G2H. A xerographic master plate capable of being raised to a uniform potential and then showing a charge distribution in an image pattern is constructed using an electrical resistivity or a capacity differential. In one embodiment an insulating material pattern is formed on a support, having a resistivity less than that of the pattern but greater than 10<SP>10</SP> ohm-cms, which may have a conductive backing. The said material may be polystyrene or rosin-modified phenol-formaldehyde and the supporting layer may be an epoxy resin or bleached shellac, and the thickness of the layer may be in the range 0. 001-0. 005 inch. In another embodiment using a capacity differential, a raised material pattern is formed on a conductor plate e.g. a cast type slug with a sheet of an insulating material e.g. polyethylene terephthalate placed across the pattern. The gaps between this sheet and the unraised portions of the plate may be filled with a solid dielectric of low capacity, e.g., an epoxy resin. The master may also be formed by etching the copper of a copper clad epoxy-filled glass sheet and placing the etched surface in a electrically grounded base. A similar embodiment comprises a conductive material pattern formed on an insulator on a conductive base with an insulator covering the material pattern and contacting the other insulator in the gaps in the pattern. The first mentioned embodiments are charged by subjecting them to a corona device but for charging the latter embodiment a potential is applied to the material pattern directly; the corona device is also used.
Patent GB-461888-A (GB)
Title: Improvements in the preparation and use of catalytic bodies
IPC: B01J35/02
Filed: 1935-07-25
Abstract: <PICT:0461888/III/1> A catalyst carrier comprises a perforated metal plate in which the size and form of the perforations and the thickness of the plate are such that the flow of fluid through the plates is not of a stream-line character and the resistance to flow is sufficient to distribute the fluid uniformly over each plate. The plates should be from \ba1/32\be in. to \ba1/64\be in. thick and the perforations should be cylindrical and equal in diameter to the thickness, occupying about 30--50 per cent of the area of the plate. The preferred metal is aluminium. The catalyst may be applied by dipping, spraying, etc.; vanadium oxide is an example of a catalyst used for the oxidation of naphthalene. The plates 1 are preferably annular and are stacked with distance pieces 2 between them; these pieces comprise concentric rings so that the assembly constitutes an annular reaction chamber 15. The plates may project beyond the outer ring so as to constitute cooling elements which may be enclosed in a jacket 13 traversed by the reaction mixture. The conduit 3 occupying the centre of the annular chamber may be supplied through pipe 10 with a heating medium to initiate the reaction.
Patent GB-753492-A (GB)
Title: Improvements in and relating to trailers for motor cars and the like
IPC: B62D63/06
Filed: 1953-07-30
Abstract: 753,492. Collapsible trailers, vehicle undercarriages. BURNS, A. T. July 26, 1954 [July 30, 1953], No. 21205/53. Classes 108 (1) and 108 (2). A collapsible trailer comprises a box framework chassis, cross-braced by members 6 at the ends, Fig. 1, a floor 13 and frameworks 7, 7: 8, 8 each hinged at 9 to a side of the chassis and supporting a wheel or wheels 11 in depending triangular frames 10 so that the wheels may be stowed flat beneath the chassis. Tie-rods 12, Fig. 2, which may be locked to support the frames 10, hold the wheels in running position. The floor 13 may be extended by hinged sections supported at each side by telescopic frames 17- 20, Fig. 6, the members 17 having ends 16 fitting into hollow chassis corner members 5, and the members 20 being hinged to the chassis. These telescopic frames allow varying widths of floor extensions to be used and are provided with locking pins between members and also with vertical sockets 21 which pass through holes in the floor extensions. Studs 24 also pass through and are bolted to the floors. Telescopic tubular supports are also provided at the ends to support floor extensions and are connected to members 3 and members 23 which connect pairs of frames 17-20. The sockets 21 or members 5 may support a box-like canvas covered and floor flapped body framework, Fig. 12. The canvas covering may be unrolled from rollers situated beneath the ends of the chassis. Further rollers may provide a second canvas weather cover. The trailer may be used to carry goods by fitting slatted sides and ends in the sockets 21 which sides and ends may be stretched across and hinged to vertically adjustable supports 37, 39, Fig. 12, to provide bunks when the trailer is used as a caravan. On each side of the chassis, or on detachable sides, there may be arranged vertical rollers, or the wheels may be arranged to project beyond the sides of the chassis when folded, which allow the trailer to be moved on its side. The trailer may be fitted with skids for use when the wheels are folded away and may also be fitted with feet so that it may be stowed on top of a motor vehicle. A drawer may be provided below the chassis. Specification 723,255 is referred to.
Patent GB-768710-A (GB)
Title: Improvements connected with electrically heated radiators
IPC: F24H3/00
Filed: 1954-07-21
Abstract: 768,710. Electrically heated radiators. BROWN, L. Aug. 15, 1955 [July 21, 1954], No. 21214/54. Class 39(3) The tubular sheathing a for housing a withdrawable heating element of an oil filled radiator b has its outer end welded or brazed a<SP>1</SP> to a collar c which in turn welded or brazed c<SP>1</SP> to one, end of the base channel b<SP>1</SP> of the radiator, a liquid tight joint thus being formed. The heating element preferably comprises a high resistance wire coiled around a cylindrical ceramic base and is terminated in a box d secured by screws d<SP>1</SP> and provided with a removable cover (not shown). Thermostatic control is specified.
Patent GB-1392121-A (GB)
Title: Fuel injection systems
IPC: F02M55/00
Filed: 1972-05-06
Abstract: 1392121 Collecting leakage from fuel injection pumps and injectors SOC D'ETUDES DE MACHINES THERMIQUES 6 May 1972 21218/72 Headings F1A and F1B Fuel leaking from the upper part Fig 2, of a fuel injection pump 3a or from the pipe 10 connecting the part to an injector is collected in a cover 6 sealingly clamped to the upper part, the inside of the cover being in communication with a sheath 9 enclosing the pipe 10. The collected fuel flows out of the cover 6 through an aperture 11 and thence by gravity through a pipe 2b into a manifold 2a. The manifold 2a also receives the leaked fuel from other pumps 3b &c and conducts all the fuel to a collecting vessel 1. If minor leakage occurs, the leaked fuel entering the vessel 1 is prevented from collecting therein by an opening in the base connected to a discharge pipe 23. Major leakages result in a build-up of fuel in the vessel 1, this being detected by a float-operated switch in circuit with a warning device. Transparent chambers 25 in the pipes 2b, 2c, &c from the covers 3 facilitate the location of a detected leak.
Patent GB-1178983-A (GB)
Title: Improvements in or relating to rubber springs
IPC: F16F1/40
Filed: 1967-05-08
Abstract: 1,178,983. Rubber springs. ALFRED TEVES G.m.b.H. 8 May, 1967 [28 May, 1966], No. 21262/67. Heading F2S. A rubber spring comprises superposed rubber rings 1, 2 with at least one interposed centring ring 7 which has a radial width exceeding the width of the bearing surface of the expanded rubber rings 1, 2, but is not larger than the radial width of the expanded rubber rings, so that when the rubber rings are deformed during the springing stroke they bear directly one against another, Fig. 2. The centring rings can be guided by a spindle extending through the spring.