baber/WOPTO huggingface dataset:
Patent GB-679142-A (GB)
Title: Improvements relating to fluid projection
IPC: F23D11/10
Filed: 1950-02-01
Abstract: 679,142. Spray-producers &c. URQUHART'S (1926) Ltd., LUNDBERG, K. H. F., and LUNDBERG, K. E. Feb. 1, 1950 [March 5, 1949], No. 2676/50. Class 69 (iii) [Also in Group XI] A device of the type including an obturator or valve 1, Fig. 3, axially movable with respect to a nozzle outlet orifice 3 at the end of a tubular casing 4, whereby fluid flow inwards over the valve face is controlled, also includes flow guide channels in the zone of flow inwards over the valve face, each channel having walls the effective flow guiding areas of which are adjustable during spraying, and being set at an angle to impart rotation to the fluid. The channels are formed by a series of vanes 7 and the control of fluid rotation is obtained by sliding the vanes along their grooves 6, Fig. 1. The valve head may be conical, frustro-conical, hemispherical, &c. and the end wall 4 may be conical. The valve and its stem may include a central passage for liquid which is atomised by a surrounding stream of whirling gas.
Patent GB-489115-A (GB)
Title: Improvements in loud-speaking telephone systems
IPC: H04M1/21
Filed: 1937-01-29
Abstract: 489,115. Sets. TELEPHONE MANUFACTURING CO., Ltd., and FLINT, J. G. Jan. 29, 1937, No. 2701. [Class 40 (iv)] A microphone unit employed in a loudspeaking telephone system comprises a microphone combined with a fitment, such as a memorandum pad, which would ordinarily be present on a user's desk and with which he would be likely to make physical contact during a telephone conversation, in order to facilitate the use of the microphone in a suitable position to avoid the effects of room reverberation. As shown, the loud-speaking telephone instrument comprising a microphone 1, a loud-speaker 2 and a dial switch 3 is structurally combined with a base member carrying a memorandum pad 7, sheets 11, 12 of glass covering reference notes, ink wells 6, a pin tray 8, a pen-stand 9 and an ash tray 10. The instrument also includes a hand set 4 brought into use by a switch 5 which disconnects the loud-speaker. The unit may also incorporate a clock, calendar or a desk lamp. The loud-speaker may be disposed at a distance and separate from the microphone unit.
Patent GB-1116472-A (GB)
Title: Primary alkyl bromides and chlorides from alpha-olefins
Inventor: SUZUKI SHIGETO
IPC: C07C17/08
Filed: 1966-01-20
Abstract: Primary alkyl bromides are prepared by selectively hydrobrominating a C6- 20 a -olefinic hydrocarbon with HBr in the presence of HCl at 0-100 DEG  C. under anhydrous conditions, the reaction being initiated by free-radical catalysis. The primary alkyl bromides may be converted to the corresponding alky chlorides by passing dry HCl gas at 130-300 DEG  C. into a solution of the alkyl bromide and lithium chloride or bromide or a quaternary ammonium chloride or bromide in an organic acid of the formula RCOOH, wherein R is an inert hydrocarbon radical containing less than 21 carbon atoms optionally having one or more hydrogen atoms replaced by F, Cl or Br. In the hydrobromination of dodecene-1 followed by reaction with HCl, the product contains dodecyl bromide and chloride, plus 1,12-dibromo-, 1,12-dichloro- and 1 - chloro - 12 - bromo - undecane resulting from 1,11-dodecadiene impurity in the dodecene feed.
Patent GB-397881-A (GB)
Title: Improvements in the manufacture and treatment of filaments and the like
IPC: D01F2/28
Filed: 1932-01-29
Abstract: The stretching of artificial filaments, yarns, ribbons, and like materials, made from or containing cellulose acetate or other film-forming substances which are relatively resistant to penetration by water, is facilitated by stretching materials from which an additional substance has been removed before or during the application of the stretch-assisting agent.  The additional substance is defined as a substance of different nature from the base of the materials and from the solvent or other substance which is removed from the spinning solution or like composition in order to form the materials, and examples of such substances are glycerine, cyclohexanol, cyclohexanyl acetate, methyl cyclohexanol, methyl cyclohexanyl acetate, cyclohexanone, methyl cyclohexanone, cyclobutanone, acetyl acetone, ethers of olefine and polyolefine glycols, benzyl alcohol, benzyl acetate, ethyl oxybutyrate, diacetin, triacetin, tribenzoyl glycerine, triphenyl and tricresyl phosphates, diethyl and dibutyl phthalates, diethyl and dibutyl tartrates, paratoluene sulphonamide and sulphonanilide, oils, fats, and waxes. The additional substance may be wholly or partly dissolved out by suitable liquids which may or may not have a solvent action on the substance of the materials.  In wet spinning processes, a volatile additional substance insoluble in the coagulating bath may be employed, and subsequently removed from the materials by the action of heat.  If the liquid used to eliminate the additional substance from the filaments is itself a relatively strong swelling agent for the substance of the filaments, it may be unnecessary to treat again with a stretch-assisting agent, the stretching operation being, for example, continuous with the removal of the additional substance by means of a liquid having swelling properties.  The stretching may be effected on the filaments &c. in hank form as in Specification 277,089, [Class 2 (ii), Cellulose &c.], or may be conducted on the travelling filaments as in Specification 323,790, [Class 2 (ii), Cellulose &c.], or intermittently stretching may be employed as is described in Specification 370,430.  In examples, (1) an aqueous acetone solution of cellulose acetate containing 10 per cent of triphenyl phosphate is spun, and the filaments stretched by the process of Specifications 277,089, 323,790, or 370,430, after first removing the triphenyl phosphate by means of a bath of benzene; (2) an aqueous acetone solution of cellulose acetate containing 8-12 per cent of diethylene glycol monobutyl ether is dry-spun, and the filaments are passed through a bath of 40 per cent aqueous acetone to remove the ether and to soften them, after which they are stretched to 200-400 per cent or more of their original length.  According to the Provisional Specification, the process is applicable to the production of filaments and the like of regenerated cellulose from viscose, cuprammonium cellulose, and nitrocellulose.  Specifications 391,829, 392,186, 392,191, 396,761, and 400,180, also are referred to.
Patent GB-427790-A (GB)
Title: Improvements in and relating to sound reproducing apparatus
IPC: G11B7/00
Filed: 1935-01-28
Abstract: 427,790. Photographic sound-records. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Jan. 28, 1935, No. 2777. Convention date, Jan. 27, 1934. [Class 98 (ii)] [See also Group XXXVIII] A cylindrical sound record member 1 which is supported on a drum 2, for sound reproduction, has the record, which may be produced photographically or mechanically, or ink printed, extending from one end thereof to the other in the form of a helical track. Alternatively, the sound record member may be in the form of a paper &c. strip having one or more sound record tracks thereon and adapted to be wrapped around the drum 2. The record shown is of the double-hump type.
Patent GB-377946-A (GB)
Title: Rodless well pump
IPC: F04B47/04
Filed: 1931-01-28
Abstract: 377,946. Deep well pumps. RODLESS PUMP CO., 804, East Gage Avenue, Los Angeles, U.S.A. Jan. 28, 1931, No. 2829. Convention date, Feb. 4, 1930. Void [Published under Sect. 91 of the Acts]. [Class 102 (i).] A deep well oil pump comprises a plunger connected to a fluid-operated motor supplied with pressure fluid from a pump on the surface, the pressure-fluid supply being controlled by a valve gear arranged with a snap action and actuated by movement of the fluid-pressure motor piston. The pump is single acting and the areas of the fluid motor piston and pump plunger are so arranged that a uniform flow of liquid is delivered from the apparatus, the discharge of the lower end of the fluid cylinder mixing with the oil discharged by the pump plunger. The pump plunger 20 is hollow and provided with a downwardly opening valve 34. Oil is drawn in through the inclined ports 38 and delivered through the foot valve 24 to the annular passage 30. The rod 52 connects the plunger 20 and the piston 66. A sleeve 68 connects the distributing valve 72 to an abutment 101. A spring 62 is provided with abutments 65, 64 the latter being secured to the rod 67. Balls 94 co-operate with grooves 91, 92 on the sleeve 68 to retain the valve 72 in its position during a part of the stroke of the piston 66. Assuming the valve 72 to be held in the upper position. Motive fluid will pass from the tubing 120 through ports 79 to space 77, past the lower end of the valve 72 into the passage 96, through ports 69, 97 acting upon the top end of the piston. On the movement of the piston, shoulder 99 moves the detent 94 and locks the valve 72. During the stroke the oil pumped passes through passages 47, 44, 85 to the annular space formed by the tubing 121. Also during this stroke the oil beneath the piston 66 is exhausted through ports in the lower end of the cylinder 40 and passes through passages 45, 89, 73, 78 where it joins the pump discharge. When the piston nears the end of its stroke, the rod 78 is held by a projection upon the rod 68 and holds the lower spring seat 64 stationary; then shoulders 105, 106 engage, compressing the spring. The recess 992 will be brought opposite the ball 94 thereby releasing the valve 72 which will be pulled into the position shown by the spring. Motive fluid then passes through ports 78, 73, 89 to the lower end of the cylinder until the abutment 65 contacts with the lower end of the stem 68, when the spring 62 is again compressed and recess 991 allows the balls 94 to release the valve 72. Air may be used as a motive fluid for the motor.
Patent GB-561787-A (GB)
Title: Improvements in or relating to tuning devices for oscillatory electric circuits
IPC: H03H5/02
Filed: 1943-02-19
Abstract: 561,787. Wireless receiving apparatus. HARMER, C. A. W., DALGLEISH, J. W., and PYE, Ltd. Feb. 19. 1943, No. 2829. [Class 40 (v)] [Also in Group XXXVI] A tuning device for oscilla tory electric circuits com prises a trimming condenser 1, 6 and an inductance coi 15 mounted coaxially, the trimming condenser com prising a tubular electrode 1 having a second electrode 6 longitudinally movable therein whilst the inductance 15 is wound on a ceramic former 14 having a ferro magnetic core 18 longi tudinally movable therein the means 10 for adjusting the electrode 6 of the con denser and the means 19 for adjusting the core 18 of the inductance being arrangec at opposite ends of the assembly. The electrode 1 is closed by a cap 11, 12 ai one end while the other enc is connected by a ceramic collar 2 to a tube 3 which is formed with an oblique slot 9 for the accommodation of a spring wire 8 which co-operates with a helical groove 7 in the electrode 6 to allow adjustment of the electrode. The assembly is fixed by bushes 4 to a chassis 5.
Patent GB-413593-A (GB)
Title: Improvements in the manufacture of zinc containers for electrical cells
IPC: B21C33/00
Filed: 1934-01-27
Abstract: 413,593. Making hollow-ware; feeding blanks. VEREINIGTE DEUTSCHE METALLWERKE AKT.-GES. ZWEIGNIEDERLASSUNG SUDDEUTSCHE METALLINDUSTRIE, 79, Geisseestrasse, Nuremberg, Germany. Jan. 27, 1934, No. 2889. Convention date, Feb. 8, 1933. Addition to 387,575. [Classes 83 (ii) and 83 (iv).] Squirting.-In the manufacture of zinc containers according to the parent Specification, the zinc plate is inserted in the press so that the side which was the lower side in the casting operation is uppermost and forms the inner side of the container. Plates a are supported in a magazine 6 and are raised therefrom by a plate 4, and slide down a groove 5 therein into a groove in a stationary member 10 when the plate 4 reaches its upper position. The zinc plates a are arched in manufacture, the concave side indicating the lower side in the casting operation. An opening 11 registers with an opening 13 in the supporting member 1 and a plate a, Fig. 5, in the incorrect position falls through these openings into the magazine. A plate a, Fig. 4, in the correct position is supported by an edge 12 and is delivered to the extrusion press.
Patent GB-1002633-A (GB)
Title: Improvements in or relating to road vehicles
IPC: B60P3/40
Filed: 1963-01-24
Abstract: 1,002,633. Vehicle trains; transporting special loads. H. P. WYNN. Jan. 22, 1964 [Jan. 24, 1963], No. 2965/63. Headings B7B, B7D and B7H. A road vehicle comprises a pair of load bearing longitudinal members 2 and 3 articulated to a pair of bogies 11, each articulation pin 9 being carried by a transverse member 8 which is connected to the longitudinal members by means of pivoted links 12 and 13. A pair of hydraulic rams 14 and 15 is dispersed between the links 12 and 13 and the transverse members 8 at each end whereby, by expansion and contraction of the rams, the distance apart of the longitudinal members 2 and 3 may be varied. Cross brace members 4, 5 and 60, with arrangements for varying their lengths, are provided. A road train may be made up of the vehicles, in which one bogey may be driven.
Patent GB-1390481-A (GB)
Title: Process for produckng yarn from continuous web plastics material
IPC: D02G3/06
Filed: 1973-01-22
Abstract: 1390481 Yarn from webs ADRIANO GARDELLA SPA 22 Jan 1973 [22 Jan 1972] 3097/73 Headings DID and D1F A yarn is made by drawing a synthetic plastics web, molecularly oriented in its longitudinal direction and separated into strands joined at intervals along their length, in a drafting unit of a centrifugal cup-spinning frame to form a fibrillated strand, and twisting the strand in a cup-spinning spindle. The web may be subject to a draw ratio of between 1:1.4 to 1:5. Web 17 is fed from a slitting machine or from a reel into drafting unit 10, where it is supported during fiibrillation between rollers 14, 15 by guide 16 or by air jets or by an air flow created by the spindle. The resultant fibrillated strand 18 is passed through rotating, pre-twisting guide 4 and then through reciprocating guide 3, telescoping about guide 4, to be deposited in rotating cap 2 as a bobbin 20 of twisted yarn 19. The cap-spinning device may be of the type disclosed in Specification 1319378.
Patent GB-359829-A (GB)
Title: An improved finger released pipe coupling
IPC: F16L37/02
Filed: 1931-02-02
Abstract: 359,829. Pipe connectors. TOMLINSON, G. V., 147, Union Street, Oldham. Feb. 2, 1931, No. 3212. [Class 99 (i).] Tubular members a, b adapted to be secured to flexible tubes d, f of small section are slightly tapered externally and internally respectively, for frictional engagement, each member having means such as lugs h<1>, g<1> to facilitate disengagement by relative rotation.
Patent GB-325675-A (GB)
Title: Improvements in or relating to miners' safety lamps
IPC: F21L23/00
Filed: 1929-01-31
Abstract: 325,675. Woodhead, D. W., and Wenham, D. Jan. 31, 1929. Vaporizing-apparatus; oil reservoirs; burners, attaching. - In an incandescent miner's safety lamp the burner comprises a body having a central mixing-chamber surrounded by an annular vaporizing-chamber connected by ducts to a nozzle and to the fuel inlet and is fixed above a container from which fuel is supplied by pressure. The burner body 10 is provided with an axial mixing-chamber 15 surrounded by an annular channel 14 from which ducts 23 and 22 lead to a nozzle 17 in the base of a transverse passage 16 and to a screwed fuel inlet end of the body 11. A cap 18 screwed to the upper end of the burner body closes the annular vaporizing- channel and forms a continuation of the mixing- chamber and is screwed at 19 to carry the mantle. The heat-retaining properties of the burner are improved by an air-gap 25. The channel 14 and ducts 22, 23 preferably contain filtering materials to prevent the choking of the nozzle.. A hollow stud 28 connects the burner to a fuel container 13, a tube 12 forming a continuation of the duct 22 ending in the dished portion 31 of the base 30. This portion carries a hollow boss 32 forming a seating for a stop valve 33, 34. To fill the container it is inverted and the valve removed. On replacing, air is pumped in before the valve reaches its seating. When the container is turned to its upright position the air pressure drives the fuel to the burner body. The burner may be extinguished at any time by inverting the container.
Patent GB-1529666-A (GB)
Title: Mos pulse edge detector circuit
IPC: H03K19/017
Filed: 1977-01-26
Abstract: 1529666 Edge detector DATA GENERAL CORP 26 Jan 1977 [19 Feb 1976] 03254/77 Heading H3T A MOS pulse edge detector circuit comprises first and second MOS devices 10, 12 serving as a voltage divider and third and fourth MOS devices 11, 13 from an inverter and functioning as a threshold detector, and capacitors 15 and 14, 15 being greater than 14, whereby when the input 16 is HIGH, the voltage at node N is a fraction of the supply voltage which is higher than the threshold voltage established by 11 and 13, thereby giving one output state, and on the input 16 giving LOW, node N is able to follow the transition rapidly due to capacitors 15 and 14, so that the output will change state when the input 16 falls below the threshold voltage. The circuit is made as an integrated circuit, capacitances 15 and 14 being parasitic capacitors, 15 being three times larger than 14.
Patent GB-802637-A (GB)
Title: Process for the manufacture of cartridge cases and the like, and cartridge cases and the like obtained through said process
IPC: B21D51/54
Filed: 1956-02-02
Abstract: 802,637. Making cartridge cases. FABBRICA NAZlONALE D'ARMI. Feb. 2, 1956 [Feb. 11, 1955 ; June 1, 1955], No. 3295/56. Class 83 (2). [Also in Group XXI] In a method of making cartridge cases the cartridge tube B, Fig. 1, is placed inside a bottom plate A, formed with an outwardlyflared flange 1 to accommodate a ring D of brazing alloy in a hollow space E and after brazing the projecting portion C, Fig. 2, is removed by turning. The case may be a machined tube or may be made by deep drawing or spinning a disc of metal to form a capsule F, Fig. 4, from which the closed end F<SP>1</SP> is subsequently removed.
Patent GB-1278219-A (GB)
Title: Cables
Inventor: SPICER LYNDON REGINALD
IPC: H01B11/18
Filed: 1971-01-28
Abstract: 1278219 Coaxial cables STANDARD TELEPHONES & CABLES Ltd 28 Jan 1971 3364/71 Heading H1A A coaxial cable has spacer means, comprising a strip of insulating material 1 (Fig. 3) having openings through which the inner conductor 8 passes, which undulates relative to the conductor 8 and has a helical twist. The outer conductor 9 (Fig. 4) is supported by the edges of the strip at the apices of the undulations. The openings can be in the form of holes at equal intervals along the strip, interconnected by slits (Figs. 1, 2, not shown) and the edges of the strip may be curved (Fig. 2, not shown) in order to provide better support for the outer conductor (Fig. 5, not shown). The insulating material may be polyethylene. The cable can be manufactured by employing wire and strip feed means and insulating wire take-up means, the strip feed having a higher feed rate than the wire feed, so that undulations are formed in the strip. The wire is forced through the slits and into the holes and either simultaneously or subsequent to the strip application, the undulating strip is given a helical twist. An outer conductor, e.g. longitudinally welded copper tape, is then formed around the strip.
Patent GB-892227-A (GB)
Title: Improvements in or relating to apparatus for forming grooves in unset concrete
IPC: E01C23/02
Filed: 1959-01-30
Abstract: 892,227. Concrete grooving machines. JOHNSTON BROS. CONTRACTORS Ltd., and BONE, A. B. April 27, 1960 [Jan. 30, 1959], No. 3460/59. Class 107 A machine for grooving unset concrete comprises a wheeled support frame which runs on rails positioned on each side of the area being grooved, a slatted shield which is lowered from the support frame to a rest position on the concrete surface and a cutting blade which is lowered through the slat in the shield to cut the concrete. The shield and blade are reciprocated in opposite phase and the frame, shield and blade may be adjusted to operate on surfaces of various widths. The support frame which includes two longitudinal members 5 and two end sections 1, is provided with a pair of wheels 2 at each of its ends and one of these pairs of wheels is supported in a structure 3 which is adjustable along the longitudinal members 5 according to the width between the rails. The cutting blade 8 is secured between angle sections 10 and an outer pair of height adjusting mechanisms support the angle sections and the blade at each end of the machine by means of roller 48 and strap 13 arrangements which permit reciprocation of the blade. Two strips 23, which together form the slatted shield are secured to angle members 26 which are also supported, at each end of the machine, by a second pair of height adjusting mechanisms which allow reciprocation of the shield. The blade and shield are reciprocated by connecting rods 17, 33 respectively connected to a crank shaft driven by a motor 58 via a gear reduction mechanism 57. Additional sections 9, 24 may be added to the blade and shield respectively to increase their length.
Patent GB-951924-A (GB)
Title: Process for the preparation of carbamyl chloride
IPC: C07C271/04
Filed: 1963-01-28
Abstract: Carbamyl chloride is prepared by feeding urea and/or biuret to a fluidized bed of inert particles maintained in the fluidized state by a flow of dry hydrogen chloride gas and at a temperature sufficiently high to cause decomposition of urea or biuret into isocyanic acid and ammonia, the gas mixture discharged from the bed being cooled to precipitate solid ammonium chloride and then condensed to recover the carbamyl chloride.  Suitable bed temperatures are 300 to 500 DEG C., and suitable bed materials are sand, silica gel, aluminium oxide, zirconium oxide and coke.
Patent GB-239773-A (GB)
Title: Improvements in or relating to blasting detonators
IPC: F42D1/04
Filed: 1925-02-07
Abstract: 239,773. Corrie, D. Feb. 7, 1925. Blasting-detonators. - A blasting-detonator comprises a primer tube a containing a fulminate priming charge d in an open-ended base chamber c surrounded by thickened walls b, in combination with a detachable detonator tube f containing a less-sensitive detonating charger g. The tube f is screwed to the tube a or secured to it by a bayonet-joint i, or otherwise detachably connected thereto, the tubes when separated being safe to handle. The primer is ignited by means of a pellet e of black powder fired by an electric or other fuze.
Patent GB-104547-A (GB)
Title: Improvements in or relating to Acetylene Generators.
Inventor: ALLEN THOMAS GASKELL
IPC: C10H1/00
Filed: 1916-03-09
Abstract: 104,547. Allen, T. G. March 9, 1916. Liquid supply controlled by variations of gas pressure. - In acetylene-generators of the kind d e s c r i b e d in Specifications 25661/09 and 26087/12, the water chamber is closed air-tight at its upper end and provided with an air inlet which can be opened or closed at will to start or stop the flow of water from the water-feed to the carbide. In the construction shown in Fig. 1, the water chamber a is provided with a screwed stopper c with air inlet c<1>, and the water - feed to the carbide chamber b consists of a baseplate f, a screwed plug c shaped as shown, and a tube g provided with holes g<1>. In the con struction shown in Fig. 2, the water-feed consists of a bush k and a pin m with flat head o,