baber/WOPTO huggingface dataset:
Patent GB-169775-A (GB)
Title: Improvements in or connected with boilers or heaters for tar, pitch, bitumen, asphalt and the like
IPC: C10C3/12
Filed: 1920-06-25
Abstract: 169,775. Mackenzie, K. D., and Lang, J. B., (Representative of Lang, A. A. R.). June 25, 1920. Boiler furnaces; dampers.-A tar boiler comprises two containers arranged one above the other, an uptake, a flue or flues extending hori zontally into the containers from the uptake, and means whereby the heating gases are caused to pass through the flues of the two containers successively from the base upwards, or through the flue or flues of one container only, or through the uptake without passing through any of the flues. Provision is made for enabling the contents of the boiler to be stirred, and for delivering the tar from the upper to the lower container. In the form shown A, B are the tar containers fitted with removable doors G, G<1>, C the uptake from the furnace K, and D, D<1> the flues extending into the containers. Doors F, F<1>, F<2> may be fitted in the uptake, and independently operable dampers E, E<1> are provided each of which when raised covers the flue above. A tube L permits the tar in the lower container to be stirred. A feed passage N is provided for supplying tar to the upper container, and valved pipes are provided for delivering it from the upper to the lower container, and for taking it from the lower container.
Patent GB-1444210-A (GB)
Title: Stoppers for closing containers
IPC: B65D51/00
Filed: 1975-04-25
Abstract: 1444210 Pierceable stoppers BECTON DICKINSON & CO 25 April 1975 [26 April 1974] 17352/75 Heading B8T A preferably butyl rubber stopper for sealing tubes, e.g. blood sample tubes, includes a body 1 surmounted by a coaxial head 2 with a bore 3 extending through the body and head and closed by a membrane 6 located below the head, a portion 7 of the bore tapering upwardly above the membrane to a construction 9 above which the bore comprises a divergent part 8 constituted by a portion 8A and a more divergent portion 8B. The apex angles of the frustoconical parts of the bore are chosen so that, when removing a needle from the membrane, blood drops are retained in the portion 7.
Patent GB-1119613-A (GB)
Title: Improvements in brushes for electric motors
IPC: H01R39/26
Filed: 1966-04-20
Abstract: 1,119,613. Brushes for electric motors. SOC. LE CARBONE-LORRAINE. 20 April, 1966 [5 May, 1965; 11 March, 1966], No. 17367/66. Heading H2A. A brush for an electric motor has at least one commutator-rubbing face shaped to a concave form generated by the revolution of a curved line (c). Such a face has two circular edges A1, A2 of radius equal to that R of a motor commutator and by which alone the brush initially rests in a stable manner on the commutator whereby the brush is rapidly stabilized during the wearing-in period. In other embodiments the brush is of square section and has such faces at both ends.
Patent GB-258695-A (GB)
Title: Improvements in hermetic closures for cans, boxes and like containers
IPC: B65D43/02
Filed: 1925-07-08
Abstract: 258,695. Bennett, G. H. July 8, 1925. Vacuum closures. - A can, box or other container closed by a lid 3 having a skirt 4' adapted to fit over the mouth of the container is formed with a horizontally outstanding flange 2 located below its mouth and a groove 7 adjacent the flange and adapted to receive one edge of a stretched elastic packing ring 6 which normally projects upwardly and outwardly in the path of an outstanding horizontal flange 5 on the skirt 4 and is compressed by it against the flange 2 when the container is closed under a vacuum. The flange 2 is formed by flattening a bead on the body of the container between two dies. In a modification, a flattened part is formed between the flange 5 and the skirt 4 to adapt it for use with a packing-ring of circular or like section. The packing ring may be provided with an outstanding tab which may be pulled to break the vacuum. Specification 246,277 is referred to.
Patent GB-678562-A (GB)
Title: A new or improved mattress or the like
IPC: A47C27/20
Filed: 1949-07-01
Abstract: 678,562. Spring upholstery. VI-SPRING PRODUCTS, Ltd., and COWIE, R. G. H. June 27, 1950. [July 1, 1949] No. 17508/49. Class 52 (iv). In a spring assembly upper and lower layers 30, 31 of rubber, preferably sponge rubber, are connected to the interior springs by shallow pockets engaging the spring ends. The interior may be open or subdivided by rubber inserts or moulded projections 40 on the surface layers to form cells for groups of for example, four or nine springs.
Patent GB-1493685-A (GB)
Title: 8-azapurinones
IPC: C07D239/46
Filed: 1975-04-28
Abstract: 1493685 B-Acapurinones MAY & BAKER Ltd 27 April 1976 [28 April 1975 2 June 1975] 17573/75 and 23785/75 Addition to 1338235 Heading C2C Novel compounds of Formula I wherein R<SP>1</SP> represents an alkylthio, alkylsulphinyl, alkylsulphonyl or alkoxycarbonyl group, R<SP>2</SP> represents a halogen atom, a hydroxy, alkyl, phenylalkyl, alkoxy, alkenyloxy, alkynyloxy, alkoxyalkoxy, phenoxy, aralkoxy, hydroxyalkyl, alkanoyl, trifluoromethyl or methylenedioxy group or an amino group substituted by two groups selected from alkyl, phenyl, alkanoyl, alkylsulphonyl and arylsulphonyl groups or by one group selected from alkanoyl, alkylsulphonyl and arylsulphonyl, m<SP>1</SP> represents an integer from 1 to 4 and m<SP>2</SP> represents an integer from 1 to 4, the sum of m<SP>1</SP>+m<SP>2</SP> being not greater than 5, and pharmaceutically acceptable salts thereof are prepared as in parent Specification. Pharmaceutical compositions in conventional forms and having use in the treatment of respiratory disorders comprise an above novel compound and a carrier therefor.
Patent GB-113432-A (GB)
Title: Improvements in Internal Combustion Engines.
IPC: F01L13/00
Filed: 1917-11-28
Abstract: 113,432. Chinese-American Co., (Assignees of Whaley, W. B. S.). Jan. 27, 1917. [Convention date]. Inductor-alternators; magnetos, driving.-Each cylinder may have two sparking-plugs 27, 116, Fig. 1, the plug 116 being connected to a magneto 110, and the plug 27 to an electric ignition device 42 arranged on the side of the cylinder. The magneto 110 and the ignition devices 42 are driven from a shaft 85, which carries eccentrics &c, 98, 99, 100 arranged to actuate the air valves. The shaft 85 is driven from the crank-shaft 2 by means of a shaft 56, Fig. 7, carrying a helical gear 67 adapted to be moved along the shaft 56 by a hand-wheel 63 operating a screw 62. When the hand-wheel 63 is turned to move the gear 67 downwards or upwards from the neutral position shown in Fig. 7, the air valve 86 is opened and the shaft 85 is turned to set the ignition devices and the operating-mechanism for the valves 32 in correct position for forward or reverse running of the engine. At the same time, an electric contact 74 is moved to close the electric circuits of the ignition devices 42. Fine adjustment of the valves 32 and of the ignition devices may be obtained by slight movement of the hand-wheel 63. The ignition devices 42, Fig. 1, have reciprocating armatures 45, Fig. 5, and are arranged to spark when a latch 44 on an operating-rod 43 is tripped by a stop 46, which may be adjusted by a cam 47 to vary the time of ignition.
Patent GB-291251-A (GB)
Title: Improvements in motor-car propelling and transmission mechanism and suspension means therefor
IPC: B60K5/00
Filed: 1927-07-02
Abstract: 291,251. Budge, J. July 2. 1927. Radius rods.-The radius rod for the front axle comprises a cradle, 4 carrying the power plant 5, 6, 7, the cradle being flexibly supported at the rear by a ball joint 9 or otherwise on' the main frame 10 and rigidly connected at two points 3 to the axle beam 2.
Patent GB-968884-A (GB)
Title: Fastener member for assembly in an aperture in a support
IPC: F16B21/08
Filed: 1961-05-15
Abstract: 968,884. Nails. UNITED-CARR FASTENER CORPORATION. May 15, 1961 [May 31, 1960], No. 17648/61. Heading F2H. [Also in Division E2] A fastener of metal, resin or moulding compound, for assembly in an aperture, e.g. to secure apertured members 24, 26 together, is mainly hollow and open down one side with a stem 22 of tapered form and a neck 20 connected by a strip 14 to a cap 12. As the fastener is passed into the apertures of the members 24, 26, the stem 22 is compressed inwardly until upwardly-divergent edge portions 36 have passed through and snapped apart. Arcuate edge portions 38 engage the lower edge of the lower aperture and the back 28 of the fastener moves from the walls of the apertures nearer to their centres. In a modification, Figs. 6-10 (not shown), the back 28 does not move from the walls of the apertures since the neck 20 is shorter and wider so that the tops 48 of the edge portions 36 abut the bottom edge of the lower aperture.
Patent GB-599071-A (GB)
Title: Improvements in or relating to hydraulic shock absorbers
IPC: F16F9/36
Filed: 1943-10-26
Abstract: 599,071. Hydraulic shock-absorbers. MONROE AUTO EQUIPMENT CO. Oct. 26, 1943, No. 17653. Convention date, Sept. 5, 1941. [Class 108 (iii)] In a shock-absorber comprising concentric pressure and reserve chamber cylinders 10, 9 having a common closure member 19 forming a guide for the piston rod 14, a packing unit 24, 25 is seated on an annular flange 23 extending outwardly from a tubular portion 26 on the closure member and an internal portion or flange 8 on the reserve cylinder 9 extends over the packing unit to retain it in compression on the flange 23. A seal 27, provided between the tubular portion 26 and the piston rod, forms a cover for recess 22 connected by a passage 21 with the reserve chamber 11, and consists of a disc 28 clamped between metal washers 29, 30 and having a downwardly extending portion 31 held in frictional engagement with the piston rod 14 by spring fingers 32. Liquid wiped from the rod by the portion 31 is deposited in the recess 22 from which it passes through the passage 21 to the reserve chamber 11. Tongues 35 on the tubular portion 26 are crimped over the washer 29 to hold the parts in position. Piston Assembly. The piston head 40 is disposed between a plate 41 and a tubular member 42 on a reduced portion 43 of the piston rod, and the parts 40, 41, 42 are held against displacement by an adjusting nut 44. Fluid flow passages 45, 46 extending through the piston are controlled by valves 47. 48, the valve 48 being held normally in closed position by a coiled spring 50 which bears at its other end on an adjusting plate 54 screwed on the nut 44. Slots 56 in the skirt 55 of the plate 54 are adapted to receive an upstanding peg 57 on a plate 58 at the lower end of the cylinder 10 so that, to adjust the spring 50 and thus the resistance of the shock-absorber during extension, the casing 9 and cylinder 10 are moved upwardly together until the peg 57 engages one of the slots 56, subsequent rotation of the casing and cylinder relatively to the piston causing the plate 54 to rotate on the nut 44. Operation. On compression of the shockabsorber, liquid is forced from one side of the piston to the other through the passages 45 against the resistance of the spring-pressed valve 47 and is also forced to the reserve chamber 11 through a bleed opening 60a in a spring valve 60 on the plate 58. On extension, liquid is forced through the passages 46 against the resistance of the valve 48 and simultaneously the valve 60 is unseated so that liquid also flows from the reserve chamber 11 through an opening 59 in the plate 58. Specifications 599,122 and 599,123 are referred to.
Patent GB-863268-A (GB)
Title: A triangle solving mechanism
Inventor: IMM LEWIS WILLIAM
IPC: G06G3/00
Filed: 1957-03-19
Abstract: 863,268. Mechanical calculating-apparatus. GENERAL PRECISION Inc. March 19, 1957, No. 17832/60. Divided out of 863,267. Drawings to Specification. Class 106 (1). Mechanism for solving a right triangle having one small angle comprises means for entering a value equal to the square of the length of the shortest side (the altitude), means for entering a value equal to the length of the base, means for multiplying the latter value by approximately 2 (preferably 2.38) and means for dividing that product into the first-mentioned value to obtain a value which, it is shown, is approximately equal to the difference between the hypotenuse and the base. The latter value may then be added to the base in order to obtain the length of the hypotenuse. The mechanism is used to obtain the slant range R s  of a submarine from a destroyer given the horizontal range R and the depth D, using the equation R s  = R + D<SP>2</SP>/2.38R, and is fully disclosed in Specification 803,269.
Patent GB-787281-A (GB)
Title: Improvements in coated paper drying machines
IPC: F26B13/28
Filed: 1955-06-21
Abstract: 787,281. Drying paper. ADSHEAD, W. June 20, 1956 [June 21, 1955], No. 17845/55. Class 34(1) A web 1, Fig. 1, of waxed or coated paper is passed from the waxing bath over a heated roller A and thence through a bath B of chilled water and over rollers b<1> to a receiving reel, water being blown off the web back into the bath B by jets of compressed air supplied through slotted pipes D, Fig. 3, having adjustable blades d<1> to control the size of the jets. Air is drawn through a filter c<2> and a valve c' by a blower C<1> which discharges into a main C having branches connected to the pipes D. In another arrangement, a coated paper web is dried by passage over a horizontal perforater surface above which are slotted air supply pipes which direct jets of warm air on to the paper. Warm air is supplied to the underside of the paper through the perforations on the surface.
Patent GB-473536-A (GB)
Title: Improvements in or relating to devices comprising ionic discharge tubes
IPC: H01J17/58
Filed: 1937-06-26
Abstract: 473,536. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 26, 1937, No. 17871. Convention date, June 29, 1936. Drawings to Specification. [Class 39 (i)] A device, for example for rectifying or switching, comprises an incandescent cathode arc discharge tube, pressure p of the filling of which lies between pmax. and 1À25 pmax. which values are, for argon, 0À02 mm. and 0À0008 mm. and for other gases or vapours values giving equivalent mean free paths, and the cathode of which is of wire, has a peak value of emission of 0À08+0À4p/pmax. amps. per sq. cm. of active cathode surface, and is so constructed that the distance between adjacent parts or turns is at least about double that distance at which the entire periphery takes part in the emission. The actual spacing for a helical cathode, may be at least equal to the wire diameter. The peak value of emission may be double the minimum value stated. The filling may comprise argon at 4.10<-3> mm. 6.10<-3> mm. 18.10<-3> mm. 20.10<-3> mm. or 60.10<-3> mm. or helium at 100.10<-3> mm. or neon at 70.10<-3> mm., or krypton at 12.10<-3> mm. or xenon at 10.10<-3> mm. or mercury at 8.10<-3> mm. or mixtures. Dimensions and characteristic curves of a typical rectifying arrangement are given.
Patent GB-497798-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03J7/04
Filed: 1937-06-28
Abstract: 497,798. Wireless receiving - circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 28, 1937, No. 17893. Convention date, June 27, 1936. [Class 40 (v)] In a superheterodyne receiver having automatic control of frequency, a multi-grid valve combines the functions of the local oscillator and frequency control valve. In Fig. 1, the local oscillator is constituted by the electrodes 22, 23, 24 of valve 19 connected as shown to the tank circuit 18, while the anode circuit includes an inductance 28 connected to the tapping 30 on inductance 8<1> over blocking condenser 31. The bias of the outer grid 32 is varied in known manner in dependence on departure from exact tune by control voltage derived from the error detector 6<1>, 8, 9, 9<1> whereby the oscillatory anode current develops a potential across inductance 28 which is in phase-quadrature with the voltage across tank circuit 18 and which varies the effective inductance between tapping 30 and earth. The frequency of circuit 18 is thus varied in dependence on departure from tune of the intermediate frequency. In Fig. 3, the combined oscillator-frequency control valve is a heptode, the tank circuit 18 of the oscillator being shunted by the network 44, 45 whereby the voltage across condenser 45, which is in phase-quadrature with that across the tank circuit 18, is applied over condenser 62 to the grid 61 of valve 50 ; this grid is variably biassed over lead 33 from the error detector circuit. A virtual inductance is thus reflected across circuit 18, which varies with the mutual conductance of valve 50 and therefore with sense and magnitude of departure from exact tune. Specifications 445,350 and 487,687 are referred to.
Patent GB-449115-A (GB)
Title: Improvements in or relating to the exhausting of the cylinders of internal combustion engines
IPC: F02B27/04
Filed: 1935-06-24
Abstract: 449,115. Ejecting exhaust. HURUM, F., 1036, Drammensveien, Oslo, Norway. June 24, 1935, No. 18049. Convention date, June 23, 1934. [Class 7 (ii)] In a multicylinder engine, in which each cylinder has two exhaust channels 7, 8, the valve timing is such that the exhaust flow through one channel produces an ejector effect on the exhaust flow through the other. The channels are fed by valves 5, 4, or groups of simultaneously operated valves, and if ignition in cylinder 1 precedes ignition in cylinder 2, the last-opened valve 4 in cylinder 1 will open simultaneously with the first-opened valve 5 in cylinder 2 to produce this effect. The exhaust channels 8 lead tangentially into an annular collector 9 which may form the engine fairing of an aircraft ; increased suction is thus produced by the cooling of the gases therein.
Patent GB-594407-A (GB)
Title: Improvements in or relating to clay catalytic materials
IPC: B01J21/16
Filed: 1944-09-21
Abstract: Clays, especially for use as catalysts in the conversion of hydrocarbon oils, are activated by digesting with acid (e.g., sulphuric acid), filtering and washing, and then digesting with a further quantity of the acid.  A total of at least 50 per cent. and preferably 60-80 per cent. of acid, based on the dry weight of the clay, may be used.  The concentration of the acid may be below 25 per cent. and is preferably about 12.5 per cent.  In examples, clay treated twice or three times with acid at 175 DEG -200 DEG F. is used as a catalyst in the cracking of gas oil at 850 DEG  F.  A yield of up to 52.5 per cent. of gasoline boiling below 400 DEG  F. is obtained.
Patent GB-890145-A (GB)
Title: New process for the preparation of novel copolymers
IPC: C08F255/02
Filed: 1959-05-27
Abstract: Graft copolymers are produced by exposing inhibitor-free polyethylene to the activating influence of thermal energy and/or ionizing radiant energy, such as gamma rays, and then subjecting the activated polyethylene to graftcopolymerizing conditions with a vinyl monomer such as acrylonitrile, styrene, methyl acrylate, and vinyl acetate. The activating step is preferably conducted in oxygen or an oxygen-containing medium at a pressure, or partial oxygen pressure, of from 0,2 to 20 atmospheres.
Patent GB-546121-A (GB)
Title: Improvements in or relating to light structures
IPC: E04C2/18
Filed: 1940-12-24
Abstract: 546,121. Aircraft structures. DREYFUS, H., FINLAYSON, D., and TAYLOR, W. I. Dec. 24, 1'940, No. 18084. [Class 4] [Also in Group VIII] A structural element for air-, craft comprises a body of rigid pith-like material of low specific gravity of about 0.02 to 0.1 such as that described in Specification 530,271, [Group IV], reinforced by stress resisting metal sheets, fabrics &c. of greater density and strength held spaced apart from one another by the body of pith-like material which imparts resistance to bending and buckling. The pith-like material e.g. cellulose acetate with a small admixture of solvent e.g. acetone heated under pressure such as in a vessel 9, Fig. 3, provided with a pressure piston 11 and heating jacket 10, the material being allowed to expand suddenly through an outlet 12 and cock 13 into a tubular fabric 7 in a mould 8, which sudden expansion causes the solvent to vaporize and convert the material into a pith-like body within the fabric tube producing a rod-like structural element. Thin sheets of metal may be united to a layer of the pith like material by applying solvent to the metal sheets and pressing them on to the pith-like material. Fig. 3 shows a layer of the material 2 united to double layers of fabrics 3 made up of heavy yarns 4 crossed by light threads 5 as described in Specifications 544,442 and 545,628, [Group VIII]. Fig. 4 shows a complex structure made up of a rod like member 30 enclosed by fabric layers 19 united to sheet like members 23 between double layers 17, 18 all assembled in a moulding member 24.
Patent GB-134345-A (GB)
Title: Pneumatic or other Power Hand Machine Suspender.
Inventor: MALCOLM THOMAS
IPC: B21J15/38
Filed: 1918-11-06
Abstract: 134,345. Malcolm, T. Nov. 6, 1918. Supports for portable machines.-A pneumatic or other machine 10 used in ship-building or constructional work, and counterweight 12 are supported by a wire 11 running over pulleys on a carriage 8. This carriage is supported by its wheels 9 on a rail 3 which fits into the ends of the brackets 1. These brackets are shaped at 2 to fit into any rivet or bolt holes, and are supported by adjustable struts 4 which can be clamped by bolts 5 in any required position.
Patent GB-943254-A (GB)
Title: Stowage for painter or the like
Inventor: DEWAR DOUGLAS
IPC: B63C9/23
Filed: 1959-05-28
Abstract: 943,254. Painter stowage. DUNLOP RUBBER CO. Ltd. May 18, 1960 [May 28, 1959], No. 18151/59. Heading B7S. A painter stowage for an inflatable liferaft comprises a board 10 to which the painter in the form of a coil 12 is adhesively detachably secured, e.g. by rubber solution. The inner end 14 is secured to the discharge valve 15 of a gas container 16, via the aperture 11 and the outer end 17 is secured to the ship's structure, or temporarily secured to the stowage container at 19, via the aperture 18. The painter may be secured to the board in the form of open-ended loops and at least the outer end may be treated to render it moisture repellant. The painter may be joined to the valve 15 by a looped wire which joint may be enclosed in a protective conduit.
Patent GB-313755-A (GB)
Title: Improvements in or relating to presses
IPC: B30B1/02
Filed: 1928-06-22
Abstract: 313,755. Hoe & Co., Ltd., R., (Hoe & Co., Inc., R.). June 22, 1928. Presses, mechanical.-A press tor drying material under pressure, such as a stereotype matrix, is driven by an electric motor capable, even when nearly or completely brought to rest when maximum pressure is exerted by the press, of exerting power, so that continuous and uniform pressure can be applied to the matrix irrespective of expansion of the parts of the press due to the heat, or of contraction of the matrix dueto' drying. The electric motor actuates a worm-wheel 24 having a screw-threaded bore engaged by the lower end of a thrust member 27 and is connected by pivoted links 36 to levers 34, 35, pivoted to extensions 38, 39 of the bed B of the press. The outer ends of the levers 34, 35 are connected by links 43, 44 to guide-rods 41, 42 slidable in the bed B and carrying the head 46 of the press.