baber/WOPTO huggingface dataset:
Patent GB-441407-A (GB)
Title: Process for the manufacture of azodyestuffs
IPC: C09B45/14
Filed: 1934-07-20
Abstract: Azo dyestuffs are manufactured by coupling a diazo or tetrazo compound, suitable for yielding a metal complex compound forming azo dyestuff, with a coupling component of the type <FORM:0441407/IV/1> where X represents S, O, CH2 or CH = CH, or a substitution product thereof, at least one of the components containing a sulphonic acid group.  Coupling takes place in o-position to the hydroxy group.  The products may be transformed in substance or on the fibre into their heavy metal complex compounds by treatment with suitable metals or metal compounds, e.g. copper, copper hydroxide, copper salts, chromium hydroxide or chromium salts. Examples describe the manufacture of the following dyestuffs: (1) 6-nitro-2-aminophenol-4-sulphonic acid --> 3-hydroxydiphenylene sulphide (the product yields corinth after-chromed shades on wool); (2) 5-sulpho-2-aminobenzoic acid --> 3 - hydroxydiphenylene oxide (olive brown shades); the diazo-compound may be replaced by 1-diazo-2-hydroxy-6-nitronaphthalene-4-sulphonic acid (black-brown shades); (3) 4-nitro-2-aminophenol-6-sulphonic acid --> 3-hydroxydiphenylene oxide-2-carboxylic acid (reddishbrown); 1-amino-4-nitrobenzene-6-carboxylic acid --> 3-hydroxydiphenylene oxide-2(?)-sulphonic acid (obtained by monosulphonating 3-hydroxydiphenylene oxide) (dark brown); (4) 3-hydroxydiphenylene oxide \sM 4:4<1>-diaminodiphenyl-3:3<1>-dicarboxylic acid --> 1-(4<1>-sulphophenyl) - 3 - methyl - 5 - pyrazolone (yellowish brown); (5) 6-nitro-2-aminophenol-4-sulphonic acid --> 6-bromo-3-hydroxydiphenylene oxide (obtained by brominating 3-hydroxydiphenylene oxide) (negro brown); (6) the product of (2) is heated with chromium chloride solution (the product dyes wool from an acid bath olive-brown shades); (7) 6-nitro-2-aminophenol-4-sulphonic acid --> 3- or 2-hydroxyphenanthrene (the products yield grey or black and blackish-violet after-chromed shades respectively on wool); (8) 6-nitro-2-aminophenol-4-sulphonic acid --> 2-hydroxyfluorene (reddish-brown shades becoming olive-brown on after-chroming); (9) 4-nitro-2-aminophenol-6-sulphonic acid --> 3-hydroxydiphenylene oxide (brown shades becoming blackish brown on after-chroming). Specifications 15982/04, [Class 2], 426,403, and 427,816 are referred to.
Patent GB-868840-A (GB)
Title: Improvements in or relating to circuit arrangements for dividing binary numbers
Inventor: STRACHEY CHRISTOPHER
IPC: G06F7/52
Filed: 1956-07-10
Abstract: 868,840. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 8, 1957 [July 10, 1956], No. 21357/56. Class 106 (1). An electrical binary series-mode divider is adapted to effect division by a small odd integer of the form 2<SP>n</SP>+1. As shown, Fig. 5, for effecting division by five, the dividend x on a lead 40 passes via a mix 43 in true form to a line 10 and simultaneously after inversion at 12 to a line 11. The lines 10 and 11 supply respective gates a, b which control entry to five unit delays 13-17. The output from the delay 13 conditions the gate b of the delay 13 and the gate a of the delay 15. The other four delays each condition two entry gates as shown. The dividend is applied twice to the mix 43, the first application of the dividend being followed by a " gap signal " of two " 0 " digits applied through a gate 44 to the mix 43, which gap signal is followed directly by a second application of the dividend derived from a delay 41. A pulse on a lead 60 in synchronism with the first digit pulse of the second application of the dividend conditions gates 47, 48, 49 which are arranged to recede in binary form the output of that one of the delays 14-17, which is activated and which represents the decimal remainder 1-4, the serial binary form of this remainder appearing at an output R. During the second application of the dividend a gate 54 is opened to pass the quotient which appears serially from gates 21, 23 controlled respectively by the complement of x and by x, the gates 21, 23 controlling outputs from the respective delays 14, 16 and 13, 15, 17. The apparatus is reset by a pulse DV4 which inhibits a gate 56 to cut off the signals applied to the delays 14-17 when no signal is applied to the lead 40 and opens the gate b of delay 13 representing " 0," which is then maintained activated by feed-back. An arrangement for division by three is described (Figs. 2 and 3, not shown). The mathematical principles underlying the invention are set forth in detail in the Specification. Specification 789,207 is referred to.
Patent GB-336288-A (GB)
Title: Improvements in or relating to arrangements for illuminating the dials of instruments
IPC: F21V8/00
Filed: 1929-07-11
Abstract: 336,288. Pioneer Instrument Co., Inc., (Assignees of Urfer, A.). March 26, 1929, [Convention date]. Dials and scales, illuminating.-The dials of instruments are indirectly and uniformly illuminated by an externally disposed source of light and optical means comprising an optical body disposed in the casing and formed with a curved reflecting surface whereby the emitted rays are distributed by internal reflection uniformly over the dial area. As shown in Figs. 2 and 3, an instrument casing 13, carrying a dial 12 and cover glass 14, is mounted by means of a flange 17, 18 in a dashboard 11. The casing is drilled at 22 to receive a light distributing body 21 shaped as shown in Figs. 4 and 5 with a curved reflecting surface so as to permit rays from an external source of light such as a filament 19 to pass through and be reflected into a flat pencil of rays to illuminate the dial. To prevent shadows appearing at a remote part of the dial the optical body 21 is positioned so that the divergent rays strike the rear surface of the cover glass and are reflected therefrom on to the dial. A single source of light may be employed to illuminate the dials of a plurality of dashboard instruments symmetrically placed with respect thereto so as to receive the same degree of illumination.
Patent GB-575934-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M7/12
Filed: 1943-12-22
Abstract: 575,934. Spray carburetters. TRIGGS, W. W. (Carter Carburetor Corporation). Dec. 22, 1943, No. 21488. [Class 7 (iii)] A carburetter comprises a mixing conduit 1, a throttle valve 3 and a flow control valve 16 in the conduit, means being provided for controlling the fuel supply when the throttle valve 3 is partly open, for enriching the charge for maximum power when the throttle is nearly fully open and for further enriching it to prevent detonation when the throttle is moved to the fully open position. A stepped needle valve 131 controls the fuel supplied to the main nozzle 6 as it is raised or lowered by a linkage 13, 14, 151, 118, springs 116, 117 and a lost motion device 115, 15 secured to the throttle valve 3. At starting, an unbalanced choke valve 2 is held closed by a bi-metallic coil 24 which may be overridden by opening the throttle to which the choke valve is connected by a lost motion device 23 permitting an initial opening of the throttle to close the starting switch 4 before the choke valve is actuated ; further opening of the throttle valve, to counteract flooding, encounters noticeably increased resistance and switches on a pilot light 25. Such further opening is usually to the fully open position and this brings a connection between the link 15 and a slot in another link 22 to the end of the slot compelling the link 22 to open fully the unbalanced flow-valve 16. Normally the flow-valve 16 is urged to open by the suction beyond it which is applied both directly to the unbalanced valve and to a piston 19 connected to a rocker arm 27 loose on the shaft of the valve but adapted to engage a stop 28 thereon. When the valve has been fully opened by opening the throttle valve fully, suction behind is at a minimum and a spring 31, between the piston 19 and its cylinder 20, pushes the piston outwards rotating the rocker arm 27 and causing a second arm on it to close a valve 29 venting a suction passage between a second nozzle 8 in the intake conduit 1 and a supply 9 of anti-detonating liquid water, petrol or alcohol, the nozzle then delivering the additional liquid to the conduit 1. Simultaneously, the pilot light 25 is energised. A further unbalanced valve 75 in this conduit is urged to close, against the action of a thermosensitive element, by a weight 77, its closure diverting the mixture flow through a byepass 78 in contact with a. hot-spot 79. A valve 81 in the byepass is controlled by the piston 19, the arrangement ensuring that on sudden opening of the throttle valve, cold mixture flows to the engine.
Patent GB-1465291-A (GB)
Title: Immersion percolating filter
IPC: C02F3/08
Filed: 1974-05-15
Abstract: 1465291 Immersion percolating biological filter H HARTMANN 15 May 1974 [27 June 1973] 21535/74 Heading C1C [Also in Division B1] An immersion percolating filter for biologically purifying sewage effluent has growth accumulation surfaces, which are adapted to be slowly rotated about an axis of rotation whereby the surfaces are alternately immersed in the sewage effluent and removed therefrom so as to enrich the biological growth accumulated thereon with oxygen, wherein the growth accumulation surfaces are uninterrupted in their central regions and are formed from a flexible material and supported within a roller cage support structure at their outer regions only and suspended under tension in planes parallel to one another; the end regions defined by the ends of the support structure being substantially circular and said support structure being rotatably mounted at its ends. In the Figure, the tensional support members (13) support the parallel foils (14) and tension them. These foils, which form the growth accumulation surfaces, may be made of polystyrene.
Patent GB-912390-A (GB)
Title: Improvements in or relating to cash tills or drawers
Inventor: HARE MONTAGUE
IPC: G07G1/00
Filed: 1960-06-21
Abstract: 912,390. Cash tills. HARE Ltd., RUSSELL. Feb. 9, 1961 [June 21, 1960], No. 21642/60. Class 106 (1).  A cash drawer or till for use with an adding machine, comprises an outer casing 10, a drawer 13 slidable in this casing and spring-urged towards the open position and a rocker-arm 18 mounted above the till and having one end 19 adapted to be contacted by the operating handle a<SP>2</SP> of an adding machine a placed on the till, and the other end 20 adapted to project through the outer easing and releasably hold the drawer in closed position. The feet a<SP>1</SP> of the machine locate in depressions formed in the upper surface of the drawer casing.
Patent GB-1459256-A (GB)
Title: Surgical suturing instrument
IPC: A61B17/072
Filed: 1974-05-16
Abstract: 1459256 Surgical staplers VSES NI I ISPYTAT INST MEDITSIN TEKH 16 May 1974 [26 July 1973] 21719/74 Heading B4C [Also in Division A5] A suturing instrument comprises : a supporting body having a channelled bar 1 with a longitudinal slot 2, and a frame 3 in the form of a closed loop, made from two struts 23 parallel to slot 2 and a supporting jaw 4 mounted across the struts, transverse to the slot 2, and carrying a die 5 having depressions for bending staple legs, said slot being open in a direction perpendicular to the plane of the frame; a clamping head 7 having a stem 6 mounted in slot 2; a staple magazine 8 contained within clamping head 7 and a staple ejector 9 extending into clamping head 7 having prongs 10 for ejecting staples. In use, the supporting body 1, 3 with the clamping head/elector assembly removed is first applied to the organ to be sutured, the clamping head/ejector assembly is then placed into the supporting body 1, 3, side projections on either side of clamping head 7 engaging the struts 23 at recessed portions 24, and the annular groove 16 of a wing nut 13 engaging a flange 16<SP>1</SP> of the channelled bar 1. Rotation of nut 13 causes longitudinal motion of the clamping body 1 ejector assembly along the supporting body 1, 3, grooves at each side of the clamping head 7 engaging with the struts 23 and lugs 29 on the tailpiece 11 of the stem 6 engaging slots 30 in channelled bar 1. When the organ to be sutured is gripped between the clamping head 7 and the anvil 4, rotation of a detachable handle 20 ejects the staples, suturing the organ. The clamping head 7 is formed with a detachable wall to allow the magazine 8 to be charged. Reference is made in the Specification to a modification in which the frame is not in the form of a closed loop, one of the struts 23 being omitted.
Patent GB-185935-A (GB)
Title: Improvements in apparatus for indicating quantities, numbers and the like
Filed: 1921-08-16
Abstract: 185,935. Japy, A. P. Aug. 16, 1921. Addition to 151,870. Dials and scales; index hands and pointers.- In apparatus for indicating statistics described in the parent Specification, consisting of an outer dial 1 supported in a frame 3 and an inner dial 5 supported on a button 7 so as to be rotated through a slit in the dial 1, the button 7 is supported by the outer dial 1 which is fixed in a spiral groove b thereon. The dial 5 is held in a second spiral groove 6. In a modification, the spiral groove b may be dispensed with by making the button 7 fit exactly in the circular opening in the dial 1. Relative rotation of the two dials is arranged to give a warning noise by means of a projection on the dial 1, or a protection g on a spring blade h attached to the dial 1, contacting with a series of teeth f on the back of the dial 5.
Patent GB-778270-A (GB)
Title: Improvements relating to wheel caps for motor vehicles
IPC: B60B7/02
Filed: 1955-07-28
Abstract: 778,270. Wheel cover discs. DAIMLERBENZ AKT.-GES. July 28, 1955 [Aug. 2, 1954], No. 21811/55. Class 144 (1). A wheel cover disc comprises a central circular hub 1, which may be embossed with a trade mark 9, 10, the periphery 4 of which is bead rolled together with the inner periphery 3 of an annular trim ring 2 shaped to conform with the wheel disc and rim flange, the rolled edges 3, 4 being spot-welded against circumferential displacement. Elongated ventilating apertures 5 may be provided in the ring 2 to correspond with openings in the wheel disc, and openings 7 are provided in the ring 2 adjacent the rolled edges 3, 4 for the insertion of a removing tool. A further opening 6 may be provided for projection therethrough of the tyre inflation valve. Specification 777,190 is referred to.
Patent GB-1036940-A (GB)
Title: Improvements relating to information display systems
IPC: H04N5/257
Filed: 1964-05-27
Abstract: An information display system comprises a photochromic screen on which is projected the image to be displayed, e.g. a p.p.i. cathode-ray display, a flying-spot scanner which repeatedly scans the screen, and a control circuit to vary the intensity of the flying-spot light beam according to the optical density of each successive point of the image on the screen in such a way as to maintain the beam after transmission through the screen at a constant intensity. The flying-spot light beam may be of such intensity as to allow a gradual decay of the photochromic image, or so intense as to retain the image until the flying-spot beam is interrupted. Two or more images may be projected simultaneously on to the photochromic screen.
Patent GB-1500393-A (GB)
Title: Installation for burning a material in powder form at high temperature more particularly for the production of cement
IPC: B01J6/00
Filed: 1975-05-21
Abstract: 1500393 Burning powdery material at high temperature FIVES-CAIL BABCOCK 21 May 1975 [22 May 1974] 21952/75 Heading F4B An installation for burning powdery material comprises cyclone preheaters 1, 2, 3 and 4, a rotary furnace 12, a combustion chamber 14 and a material cooling apparatus 16. Air from the cooling apparatus 16 is supplied partly as secondary air for the burner 18 in the furnace 12 and partly as secondary air for the fuel injectors 28 in the combustion chamber 14. A valve 22 regulates the distribution between the furnace and the combustion chamber. Exhaust gases from the furnace 12 containing particles of material are fed tangentially into the combustion chamber 14 by the duct 26 and travel in a helical path along the wall of the chamber while secondary air from the duct 20 with fuel from injector 28 generates a flame along the centre of the combustion chamber 14. Combustion gases from the flame and the furnace exhaust gases mix at the outlet of the chamber 14 which is connected to the cyclone 4 by a square sectioned duct 30. At the instant of mixing the temperature of the combustion gases is relatively low so that there is no danger of melting particles of material in the exhaust gases or damaging the walls of the combustion chamber.
Patent GB-474312-A (GB)
Title: Improvements in envelope and like sealing machines
IPC: B43M5/02
Filed: 1936-08-10
Abstract: 474,312. Feeding sheets. SOUTHWELL, R. N. Aug. 10, 1936, No. 21956. [Class 100 (i)] [Also in Group XVII] In a machine wherein filled envelopes are fed from a pile and the flap is raised, moistened and sealed, the envelopes are contained in a magazine having an inwardly inclined side 10, Fig. 3, and an opposite side 11 inclined outwards and mounted for lateral adjustment for different sizes of envelopes. A sheath 18 having a bent edge 19 is placed over the side 11 to relieve the lower envelopes of the weight of the pile. The bottom envelope is fed by a wiper 22, Fig. 1, to the main feeding roller 20, on which it is held by fingers mounted on a pivoted yoke.
Patent GB-257739-A (GB)
Title: Improvements in or relating to cycle or like brakes
IPC: B62L3/02
Filed: 1925-09-03
Abstract: 257,739. Pugh, J. V., Whitmall, W. H., and Rudge-Whitworth, Ltd. Sept. 3, 1925. Brake mechanism for cycles &e. comprises at each end of the handlebar separate brake handles or like actuating-means, either of which is adapted independently, and without movement of the other actuating- means, to apply the same pair of brakes. Two roller levers b, mounted in bearing-lugs d<1>, are each rigidly connected at their inner ends to a lever h, each of which engages the outwardly-turned parts y, Figs. 2, 3, and 4, of a double-sided lever arm r, s, which, when turned by either or both of the levers h, is adapted simultaneously to actuate the front and rear wheel brake rods u, w. The lever arm r, s, the arms of which are united by a transverse connecting-part t, is rotatably mounted on washers p, which, in conjunction with nuts n, secure the levers h to the roller levers b. The levers h are normally held against the junction lug a of the handle-bar by coil springs g, each of which engages at one end with a notch h<1>, Fig. 3, in the lever h and is secured at the other end to the bearing-lug d<1>.
Patent GB-1515614-A (GB)
Title: Preparation of m-benzoylhydratropic acid and an intermediate therefor
IPC: C07D307/83
Filed: 1976-05-27
Abstract: 1515614 Benzofuranone compound and mbenzoylhydratropic acid AZIENDE CHIMICHE RIUNITE ANGELINI FRANCESCO SpA 27 May 1976 [5 June 1975] 22103/76 Heading C2C The novel compound, 7-benzoyl-3-methyl- 2,4,5,6 - tetrahydro - benzo[b]furan - 2 - one, is prepared by reacting 2-benzoyl-cyclohexanone with pyruvic acid or a salt or ester thereof. The product of the above reaction containing the novel compound, or the isolated novel compound, may be heated at 200 to 230 C. with an acid to form m-benzoyl-hydratropic acid.
Patent GB-1173046-A (GB)
Title: Improvements in or relating to Containers such as Cardboard Boxes
Inventor: LAWSON JEREMY THOMAS
IPC: B65D5/68
Filed: 1967-05-12
Abstract: 1,173,046. Boxes. LONDON FANCY BOX CO. Ltd. 7 May, 1968 [12 May, 1967], No. 22161/67. Heading B8P. A cylindrical, hexagonal &c. cardboard box, shown as rectangular, has a lid 15, Fig. 1, with slots 21 cut at each side and partially covered by paper to leave semi-circular &c. notches 23, and a body, Fig. 5, with outwardly-turned lock flaps 25 which engage the slots 21 when the lid is pushed on to the body. To release the lid 15, the flaps 25 are pushed inwards by gripping them through the notches 23. In a modification, Figs. 8-10 (not shown), the slots and lock flaps are half-way down the body &c. walls, instead of on the top edge of the body.
Patent GB-517733-A (GB)
Title: Improvements in coin freed time controlled apparatus for the delivery of commoditiesand for other purposes
IPC: G07F15/06
Filed: 1938-07-26
Abstract: 517,733. Prepayment mechanism for meters and games. UNITED GAS INDUSTRIES, Ltd., SMITH, N. L., SMITH, D. G. (Representatives of SMITH, E. W.), and CHARLES, A. July 26, 1938, No. 22177. [Class 27] A coin-freed time-controlled apparatus for the delivery of commodities such as a gas or a fluid, and for other purposes, such as the timing of the use of game apparatus &c, has an electrical time control mechanism 1 operated by a primary or secondary battery 2. A control element 7, consisting of a cam or disc having a substantially radial slot into which enters a pin 30 mounted on an arm 31 of a gas valve 6, is of such construction and is so disposed on its carrying spindle that in the operation of the coin-holder mechanism 13 and by transmission of the movement of quantity wheels 14, 15 through epicyclic reduction gear, 17, 18 and differential quantity mechanism 8, 11, 12, the element 7 is given an angular movement proportional to the amount of prepayment or initial charge, and is such that in the rotation of the control element the pin 30 rests against the rim thereof. The member 12 of the differential quantity mechanism is driven by the coin mechanism 13, and the member 11 is driven by the time control 1, whilst the member 8 controls the element 7. The timing mechanism 1, which operates continuously serves -to return the element 7 in the direction to close the valve 6, a radial extension on the element 7 bearing on the pin 30 for this purpose, assisted by a spring 32. A frictional or other clutch is interposed in the drive to enable the timing mechanism 1 to operate when the element 7 is arrested, or the drive may be dis-connected till the valve is opened by fresh prepayment. Alternatively the timing mechanism 1 may itself be stopped by automatic breaking of the electric circuit. The element 7 may have an ' extention of its radial slot disposed concentrically with the axis of rotation so that when the pin 30 has closed the valve 6 it may be retained in that position while the element 7 continues to rotate, or, as shown, the element 7 is threaded on an extension of the spindle of the Maltese Cross member 10 and is pressed by a spring 35. In this construction, when the valve 6 is closed, the element 7 is constrained against further rotation but travels axially. Thus before the valve 6 can again open sufficient prepayment must be made to return the element 7 along the spindle to its initial position. Specifications 387,678, 392,530, 400,636 and 405,302 are referred to.
Patent GB-1502530-A (GB)
Title: Filling head for a bottle filling machine
IPC: B67C3/26
Filed: 1976-05-28
Abstract: 1502530 Filling nozzle STORK AMSTERDAM BV 28 May 1976 [2 June 1975] 22264/76 Heading B8T In a filling head for a liquid bottling machine operating under sub-atmospheric pressure, a liquid seal is formed by a cylindrical edge 8 of a stationary valve portion 7 extending downwardly into an annular liquid space 14 formed by an upwardly extending cylindrical edge 13 of a slidable valve portion 20 attached to a cupshaped member 2 which receives the rim of a bottle in operation. In the Figure, the righthand side shows the filling position, the lefthand side the position between filling operations. During filling, the bottle is brought to the same pressure as the liquid reservoir by gas pipe 4, liquid then flows through the nozzle as indicated by the arrows until the bottle is filled to the level of opening 5 of the gas pipe. As the bottle is then lowered, edge 18 engages against sealing ring 21, while the liquid space 14 enlarges to prevent escape of liquid therein past collar 19, so that the nozzle does not dip.