baber/WOPTO huggingface dataset:
Patent GB-1390227-A (GB)
Title: Method of and apparatus for determining the concentration of  gases by optical extinction measurement
IPC: G01N21/31
Filed: 1972-06-16
Abstract: 1390227 Photo-electric gas analysis E SICK 16 June 1972 [18 June 1971] 28338/72 Heading G 1A In an apparatus for the absorption analysis of a gaseous mixture, e.g. flue gases in a chimney 13, in which a beam-splitter 12 provides measuring (31) and reference (14) beams from a light source 11, a plurality of beam-splitters 15, 16 and photocells 20-22 are provided, each photo-cell only receiving radiation within a predetermined wavelength range so that its output is indicative of the concentration of a particular component. Wavelength selection is achieved either with  filters 23-25 or using dichroic mirrors as the beamsplitters 15, 16. Each photo-cell thereby receives a measuring beam, which has travelled through the gas twice, and a reference beam at its appropriate wavelength. To distinguish between the two beams 14, 31 they are chopped at different frequencies by a rotating disc 27 having two series of holes of different pitches. Each photo-cell output is converted to log. form and supplied to an analog computing circuit, Fig.2 (not shown) which calculates the concentrations of the various components.
Patent GB-245256-A (GB)
Title: Improvements in or relating to the cutting of gear teeth
IPC: B23F21/16
Filed: 1924-11-27
Abstract: 245,256. Brown & Sons (Huddersfield), Ltd., D., and Brown, P. Nov. 27, 1924. Tools.-A reciprocating cutter for generating gear teeth comprises a block b having projecting wings b<1> - - b<4>, each of which is formed as a rack cutter. The four sets of teeth are of gradually increasing size and are brought successively into action by partial rotation of the cutter block. the set b<4> being finishing cutters. In a modification, Fig. 3, eight sets of cutting teeth d<1> - - d<8> are arranged round a cylindrical block.
Patent GB-931839-A (GB)
Title: Expansible hollow rivet
IPC: F16B33/00
Filed: 1961-08-04
Abstract: 931,839. Rivets. B. F. GOODRICH CO. Aug. 4, 1961 [Aug. 9, 1960], No. 28419/61. Class 89 (1). A hollow rivet 10 comprises a shank, part 13 of which may be bulged outwardly by shortening the rivet and is of substantially prismatic shape, the end 14 of the shank having a smaller bore than that, 18, in the part 13. The aluminium alloy, stainless steel, brass, non-metallic &c. rivet may be screwthreaded at 24 to receive the removable shortening bar 25, or shortened in a press. The head 11 may be flat, round or countersunk, and the shank passed through a round or polygonal hole in the work 17.
Patent GB-173861-A (GB)
Title: Improvements in means for securing railway rails to sleepers
IPC: E01B9/64
Filed: 1920-10-07
Abstract: 173,861. Baker, R. Oct. 7, 1920. Rails and chairs, securing to sleepers.-Flatbottomed rails a are secured to sleepers by clips e arranged in pairs and having eccentric holes for bolts c which are connected together by a plate d below the sleeper. The portion of the clips engaging the side of the rail flange is formed square, and in all four positions the clips overlap the rail to the same extent. The Provisional Specification states also that chairs may be secured to sleepers by eccentric ferrules made to fit the trenail holes and having marks cast in their heads to indicate the positions giving the varying amounts of eccentricity.
Patent GB-482964-A (GB)
Title: Improvements in or relating to bottle or like capping machines
IPC: B67B3/02
Filed: 1936-10-20
Abstract: 482,964. Capping bottles &c. KING, G. E. Oct. 20, 1936, No. 28563. Addition to 448,666. [Class 125 (ii)] Accidental lowering of the capping-head of the bottle or like capping-machine described in the parent Specification when the head is in its higher position is prevented by a spring catch acting between the cross-head 17, Fig. 1, carrying the capping - head 16 and the guide rod 20 along which the cross-head slides ; as shown the machine conforms to that described in Specifications 458,329 and spring-pressed balls or round-headed spring loaded pins a are disposed in diametrically opposite holes in the guide rod 20. A spring d is arranged at each side of the standard 5 between a pair of abutments b, the one on the standard being swivelled and engaging a rod c fixed to the other abutment which is pivoted to the cross-head 17 ; the spring surrounds the rod and presses the crosshead upwards or downwards as it is moved past a dead-centre position and assists in holding the cross-head in its highest position and assists the downward movement thereof. Instead of severing the foremost cap blank under the capping-head from the strip as the blank is applied to the bottle, the neck of the strip behind the blank is clamped between a pair of blocks e, f, Fig. 3, and the blank is torn from the clamped strip by the downward movement of the capping-head 2. The block e is mounted on the lower face of the upper cylindrical member 35 of the head and the block f on the upper surface of the flanged ring 39 ; the necks of the foil between adjacent cap blanks may be perforated to facilitate the tearing action. The rear edges 12b, Fig. 8, of the leading recess in the feed-slide 12 are undercut or provided with an overhanging lip so that the edge of the leading cap dics is positively engaged by the slide and a pair of leaf springs h curved upwardly over stop pins i bear against the side portions of the discs. The stop members 75, 82, Fig. 2, which are struck by the feed-slide lever arm 72 and the tail of detent lever 77 are mounted directly on the standard 5. According to the Provisional Specification the springs d and rods c may be carried by detent plates mounted on the fixed sector racks 29 of the machine.
Patent GB-1385566-A (GB)
Title: Cylinder forming
IPC: B21D24/16
Filed: 1972-06-19
Abstract: 1385566 Cupping CYLINDER FORMING Ltd 22 May 1973 [19 June 1972] 28597/72 Heading B3Q Shock absorber bodies and other tubular components deep drawn on a punch 26 are given a smooth bore by a projecting rim on this punch as the latter is withdrawn from the components. Oppositely-directed punches on each side of a slide (14), Fig. 1 (not shown), co-operate with a die-set 12 at each end of the press, the slide being moved hydraulically and the punches supported in bearings (22). A tungstencarbide ring 48, secured to the punch by a screw or brazing, may provide a projecting rim constituted by frusto-conical and cylindrical surfaces 52, 54. Alternatively, the whole punch may be formed of hard material, the radiused corner 58 may be bevelled and the tapering section 52 may be replaced by a radial shoulder. The drawn component may be supported against expansion during withdrawal of the punch.
Patent GB-432791-A (GB)
Title: Improvements in soot blowers
IPC: F28G3/16
Filed: 1933-12-16
Abstract: 432,791. Soot blowers. BABCOCK & WILCOX, Ltd., Babcock House, Farringdon Street, London.-(Assignees of Snow, N. L.; New Canaan, Connecticut, U.S.A., Thomas, W. P. ; Highland Park, Brelsford, H. E. ; Birming- ham, Howse, C. L., and Bowers, F. ; Detroit, all in Michigan, U.S.A.) Dec. 16, 1933, No. 28630. Convention date, Dec. 27, 1932. [Class 99 (ii)] A soot blower for a fluid heater comprises a plurality of blower tubes 23, Fig. 1, each of which is supplied with cleaning fluid by a branch 41 of a main 40 and is rotated through gearing 28 by a fluid motor 30 having a supply conduit 70 for pressure fluid which leads from a compartment 49 of a casing 45, Fig. 4. This casing 45 is provided with a horizontal partition 46 and vertical partitions 48 to form the compartments 49 and also a chamber 47, a pressure fluid supply conduit 50 being led to the chamber 47 and the partition 46 having openings 51 for permitting communication between the said conduit 50 and the several conduits 70. The openings 51 are controlled by spring-pressed valves 52 which are normally closed and are actuated in any desired sequence by cams 58 adjustably secured by set screws to a rotatable shaft 56. The casing 45 is also provided with a valve-controlled compartment 49<a> provided with an outlet 65 leading to a cylinder 66 in which is mounted a piston 67, Fig. 5, connected to a valve 42 which is located in the main 40 and is normally closed by a spring 69. The arrangement is such that upon rotation of the shaft 56 the valve 52 of compartment 49<a> is first opened, whereupon pressure fluid flows from the conduit 50 through the chamber 47 and conduit 65 to the cylinder 66 and acts upon the piston 67 to open the main valve 42, continued rotation of the shaft effecting an opening of the remaining valves 52 so that pressure fluid flows through the conduits 70 to the motors 30. The motors will then operate to rotate the blower tubes, rotation of the latter periodically opening the usual valves in the respective cleaning-fluid branches 41. Valves 71, one or more of which may be closed so that the corresponding motor is rendered inoperative, are provided in the conduits 70 as shown. The Specification as open to inspection under Sect. 91 comprises also the constructions described in Specification 433,609. This subject-matter does not appear in the Specification as accepted.
Patent GB-468173-A (GB)
Title: Improvements in smokers' ash-receptacles, refuse-tidies and the like
IPC: A24F19/00
Filed: 1936-10-21
Abstract: 468,173. Smokers' ash receptacles. ALBERT, C. Oct. 21, 1936, No. 28631. [Class 130] In a smokers' ash receptacle or like refuse tidy, for fixing in the walls or bodywork of vehicles or in furniture and the like, with the mouth of the receptacle extending through the wall or other supporting surface, the longitudinal axis of the whole receptacle is a circular arc of which substantially the whole length is normally behind the wall or surface. In one form, Fig. 1, the receptacle 4 is fitted in a guide socket 2 in a cavity 5 in the arm rest of a vehicle, and is retained by a spring catch 9. An opening 8 allows the insertion of ash &c. when the receptacle. is withdrawn by means of a knob 7. In a modification; Fig. 3, a receptacle 14 fitted to a dashboard 13 has inlet and emptying openings closed by hinged covers 21, 25 in front of the dashboard. In a further form, Fig. 6, a guide socket 29 is secured by U-shaped stirrups 31 to the dashboard 33, and a grid 43 hinged at 45 forms a cigarette rest in the position shown. When the receptacle is pushed into the socket 29, the grid 43 is lowered by the engagement of a pin 49 thereon with a cam surface on the socket, allowing refuse on the grid to fall into the receptacle. The wall 40 of the receptacle is hinged at 56 to allow emptying.
Patent GB-712962-A (GB)
Title: New or improved feeding device for use in pneumatic conveying pipe lines carrying loose materials
IPC: B65G53/66
Filed: 1952-11-14
Abstract: 712,962. Pneumatic conveyers. MIAG MUEHLENBAU UND INDUSTRIE GES. Nov. 14, 1952 [Nov. 15, 1951], No. 28706/52. Class 78 (1) In a pneumatic conveyer in which material is delivered in batches to the feeding hopper 11, a valve 12 is provided which controls the air intake opening 4 to the system and the outlet 5 of the hopper in such a manner that the air pipe line is closed when the hopper is empty. The valve 12 is pivoted at 3 and is urged towards the closed position by a weight 6. The hopper is divided into a main container 10 and a secondary container 9, the outlet passages 8, 7 of which are controlled by slides 15, 3.
Patent GB-692372-A (GB)
Title: New chromiferous monoazo-dyestuffs and process for their manufacture
Filed: 1950-11-23
Abstract: Compounds of the formula <FORM:0692372/IV (b)/1> where A1 and A2 are alkyl or cycloalkyl, X is alkyl, aralkyl or -NR1R2, R1 is hydrogen, alkyl or aralkyl and R2 is hydrogen or alkyl (or -NR1R2 is a morpholino residue) are made as follows: aminohydroquinone dialkyl ether is acylated (e.g. with acetic anhydride) and treated with chlorosulphonic acid to introduce a sulphonyl chloride group; the product is either (1) reacted with HNR1R2 or (2) converted into a sulphinic acid (salt) with alkali bisulphite and condensed with an alkyl or aralkyl halide; finally, in each case the acylamino group is hydrolysed to amino.  In specified products A1 and A2 are methyl and -SO2X is sulphonamide, sulphonmethylamide, sulphonethylamide, sulphondiethylamide, sulphonisopropylamide, sulphomorpholide, ethylsulphone and benzylsulphone.ALSO:The invention comprises complex chromium compounds of <FORM:0692372/IV (c)/1> where A2 is alkyl, X is alkyl, aralkyl or -NR1R2, R1 is hydrogen, alkyl or aralkyl, R2 is hydrogen or alkyl (or -NR1R2 is a morpholino group), one Y and one Z are sulphonic acid and the other Y and the other Z are hydrogen. These are made by diazotizing a 2 : 5-dialkoxyaniline having a group -SO2X in the 4-position, coupling with the appropriate naphtholdisulphonic acid and chroming the product under dealkylating conditions.  The metal-free dyestuff need not be isolated, the coupling mixture merely being rendered weakly acid before chroming. The alkoxy groups in the nucleus may be substituted and may be cycloalkoxy; groups of 1-4 carbon atoms are preferred.  The products are suitable for dyeing and printing wool, silk, leather, superpolyamides and superpolyurethanes.  In the examples, the following dyestuffs are made and chromed: (1) 2 : 5-dimethoxyaniline-4-sulphonamide --> 1 - naphthol - 3 : 6 - disulphonic acid; (2) 2 : 5-dimethoxyaniline - 4 - sulphonethylamide --> 1-naphthol-3 : 8-disulphonic acid; and (3) 2 : 5-dimethoxyaniline-4-sulphonethylamide --> 1-naphthol - 4 : 8 - disulphonic acid.  A further example shows the dyeing of wool (blue) with the product of (1).  Other suitable components are mentioned. Specification 408,590 is referred to.
Patent GB-442306-A (GB)
Title: Improvements in or relating to spring catches or fasteners for windows and the like
IPC: E05C1/06
Filed: 1934-10-08
Abstract: 442,306. Window-fasteners. MULLINS, F., Rhodesia, Boreenmanna Road, Cork, Irish Free State. Oct. 8, 1934, No. 28780. [Class 44] A catch for fastening a window &c. which can be withdrawn by a cam comprises a U-or J-shaped plunger arranged in parallel bores in a block with a compression spring about the shorter arm, the other arm serving as or being provided with a locking plunger. A fitting 1 having securing flanges 2 is bored at one side to take two plungers 7, 11 screwed to a U-shaped member 9 projecting through smaller bores in the opposite side of the fitting. A spring 10 surrounding one limb of the member 9 presses the plunger 11 against the window frame to prevent rattle and causes the engagement of the other plunger with a recess in the frame. A casing 12 with a handle 13 carries a pin 14 passing through the loop of the member 9 so that pressure on the handle causes withdrawal of the plungers. A modified casing is shown in Fig. 2 which has a handle 16 adapted to be secured thereto in any of four positions by a screw 15 corresponding to the pin 14. Specification 354,142 is referred to.
Patent GB-914165-A (GB)
Title: Improvements relating to leadscrew mechanisms
Inventor: FLETT ALEXANDER
IPC: F16H25/24
Filed: 1958-09-08
Abstract: 914,165. Screw-and-nut gearing. FAIREY CO. Ltd. Dec. 7, 1959 [Sept. 8, 1958], No. 28792/58. Class 80 (3). [Also in Group XXXIV] In a lead-screw mechanism which comprises two co-operating screw-threaded members, the co-operating surface of one of the two members is provided with at least three recesses or groups of recesses distributed circumferentially around the axis of rotation of the lead-screw, each recess or group of recesses having a fluid connection to a source of pressurized fluid whereby a continuous flow of fluid can be maintained from each recess through a clearance gap between cooperating parts of the nut and lead-screw to a low-pressure outlet, the arrangement being such that changes in the position of the leadscrew relative to the nut in a radial direction result in pressure changes in the clearance gaps in a sense which will tend to restore the lead-screw to a central position in the nut. The flanks of the thread formation of the nut 11 are formed with recesses 13, 14, or alternatively helical recesses distributed along the length of the thread, pressurized oil being fed to the recesses of each flank through a separate restrictor or restrictors 17. The oil flows through the clearance between the flanks of the co-operating threads of the screw and nut to the relatively large clearance passage 26 between the root of the nut thread and the crest of the lead-screw thread. In a modification, Fig. 5, the flanks of a rectangular thread are formed with recesses 35, 36 and the root surface of the nut thread is also formed with recesses 40 connected to a separate pressurized system to counteract radial forces, the low-pressure outlet being formed by the large clearance 43 between the root and crest of the nut and screw thread, respectively. The lead-screw may be supported at one or each end by a multiple ring thrust bearing 50, the annular flanks 58, 59 of the stationary rings 54-57 having recesses connected to a pressurized oil system. In an application where the axis of the screw is vertical and supporting a heavy load, the restrictor values may be selected so that in the mean flank clearance position a pressure differential exists to support the static load without imposing any limitation on the upward drive thrust.
Patent GB-463033-A (GB)
Title: Improvements in and relating to electric resistance heating elements
IPC: H01B7/16
Filed: 1936-10-23
Abstract: 463,033. Electric wire resistances; BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1936, No. 28899. Convention date, Oct. 24, 1935. [Class 39 (iii)] A sheathed electric heater is formed by assembling a resistance wire loop 11, having terminals 13 and readily deformable supporting members 18 and 23, in a sheath 10. The supporting members are provided with apertures so that the tube may be filled from one end with electrically insulating heat conducting material such as magnesium oxide. The tube is then swaged to compact the insulating material and the deformable members are substantially destroyed so that in the finished heater the resistance wire and terminals are supported solely by the insulating material. The sheath 10 is closed at both ends by metal washers 15 and 32 before swaging takes place. After swaging, the washer 32 and the ends of the terminals 13 are cut off from the unit. The deformable members 18 and 23 may be mica washers. A tube 16 fits within sheath 10 and is provided with notches in which ears on the washers engage and thus the parts are secured in position. Specifications 144,767 and 198,932, [both in Class 37], are referred to.
Patent GB-1406821-A (GB)
Title: Composite elastic bands and garments incorporating such bands
IPC: A41B9/14
Filed: 1972-06-21
Abstract: 1406821 Wearing apparel AUTOMATIC BRAIDING CO (NOTTINGHAM) LTD 15  June 1973 [21 June 1972 10 April 1973] 28932/72 and 17115/73 Heading A3V A band for the waist cuff or ankle of a garment and capable of being stretched elastically from a relaxed condition comprises a core of elastic ribbon material, a cover of flexible material secured to the core, and a draw cord extending lengthwise within the band. The band may comprise two rubber strips 9 with the draw string 10 therebetween, the cover being strips 8 of woven material or non-woven material such as knitted fabric or one of bonded fibres, secured to the strips by adhesive. Alternatively the band may be one of those disclosed in Specification 1279743 but provided with a draw cord. The band may be enclosed by the edge of the garment (14, Figs 2-5, not shown) by apparatus disclosed in Specification 1406822, and the ends of the band sewn together by the joining seam as the article is completed, a loop of the draw cord being pulled through the wall of the band and an opening 16b in the garment turning. The loop is then severed and the cut ends knotted; alternatively if a second opening 16a is available one cut end can be drawn therethrough before knotting or tacking.
Patent GB-160497-A (GB)
Title: Improvements in or relating to electric switches
IPC: B60R16/00
Filed: 1919-11-21
Abstract: 160,497. Westney, H. F., and British Ever Ready Co., Ltd. Nov. 21, 1919. Switches ; ratchet actuation; contacts.-For controlling the supply to the tail-, side,- and head-lights of a motor-vehicle, a switch consists of a single flat commutator member cooperating with fixed contacts so arranged and interconnected that any one of the following circuit combinations may be energized-(a) tail and off side-light, (b) tail and both side-lights, (c) tail and both head-lights, (d) all lights; an off position of the switch may be provided also. The switch comprises an insulating ratchetwheel 15 driven step by step by a spring pawl 19 carried by the operating lever 20 pivoted coaxially with the wheel which carries contacts 21, 22, on its under face in electrical connection, respectively, with contact screws 24 and contact 23 on its upper face. The interconnected contacts 22, 23 overlap one another somewhat. Fixed contact springs 1, 4 co-operate with the upper contacts, and 2, 3, 5 with the lower contacts. The contacts 22, 23 are together of a width sufficient to bridge the distance of three fixed contacts; contact 21 bridges five contacts and contact screws 24 bridge four contacts. The circuit connections to the various lamps are shown in Fig. 4. The operating spindle carries a pointer which indicates which lamps are in circuit.
Patent GB-1488643-A (GB)
Title: Leucomycin derivatives
IPC: A61P31/04
Filed: 1976-07-13
Abstract: 1488643 Isoleucomycin As TOYO JOZO KK 13 July 1976 [15 July 1975] 29071/76 Heading C2C Novel isoleucomycin A 5  of the formula and pharmacologically acceptable acid addition salts thereof are prepared by allyl rearrangement of leucomycin A 5  or a water-soluble salt thereof in the presence of an acid catalyst in an aqueous medium, followed optionally by salification. Pharmaceutical compositions having antibacterial activity comprise, as active ingredient, isoleucomycin A 5  and/or at least one pharmacologically acceptable acid addition salt thereof, in admixture with a solid or liquid pharmaceutical diluent or carrier.
Patent GB-745808-A (GB)
Title: Improvements relating to coke ovens
IPC: C10B3/02
Filed: 1954-10-11
Abstract: 745,808. Coking. SIMON-CARVES, Ltd. Oct. 11, 1954 [Oct. 13, 1953], No. 29248/54. Class 55(1). In a continuously operated coke oven, having a vertical chamber of narrow rectangular section, wherein the fuel gravitates through a carbonization zone 1, an after-carbonization zone 2 and a cooling zone 3, the heat is supplied by transversely flowing washing-gases, from a chamber 11, which are heated by combustion of fuel gas and air in an adjacent chamber 18. The washing-gases, which may be distillation gases branched from the useful gas conduit by a pipe 14, pass through a heat-exchanger 15 which receives the combustion products from the chamber 18. The pre-heated gas passes through the pipe 16 to an aspirating chamber 30, which induces an oppositely directed transverse flow of heating gas through the after-carbonization zone 2, and from thence through the heating chamber 11, and checker-work 10 to the collecting chamber 12, gas-condenser 13, by-products recovery plant and the useful gas conduit. The combustion chamber 18 heats also a recup. erator 22 in which the air is pre-heated and supplied through conduits 21 to a burner 20 supplied either with rich gas at 23, or with preheated weak gas fed to a compartment of the recuperator 22 by a pipe 24. A portion of the washing gas is branched off at 28, mixed with air at 29, the consequent combustion in the chamber 26 producing gases which pass through checker-work 25 to the chamber 30. The collecting chamber 12 is formed with a dust pocket 31 and removal valve 32.