baber/WOPTO huggingface dataset:
Patent GB-1111551-A (GB)
Title: Plastic tapes and production thereof
IPC: B29C48/13
Filed: 1965-05-28
Abstract: 1,111,551. Synthetic tapes and filaments. SUMITOMO CHEMICAL CO. Ltd., and S. OKAMOTO. 28 May, 1965 [28 May, 1964; 23 April, 1965], No. 22882/65. Heading B5B. Thermoplastic synthetic-resin tapes having a plurality of longitudinal parallel solid monofilaments connected by film portions integral therewith, the film portions being thinner than the monofilaments, are made by extruding by an inflation method the hot molten resin through a die 3 with a thin circular slit 1 having a number of enlarged grooves 2 to form a tube; this is cut into tapes of suitable width, which are then stretched. The tape may then be fibrillized, to form a bundle of monofilaments. The film may be preheated before cutting, and the tapes may be stretched while in contact with the surface of heated rollers. Before the cutting step, the tube may be cooled quickly or slowly, and may be flattened by being folded double. The grooves 2 may extend on each side of the slit, or on one side only, or on each side alternately, and may be e.g. circular, semicircular, square, rectangular or triangular. The distance between adjacent grooves is preferably 0À8-4À0 times the groove width, and the slit thickness is preferably 0À5-0À8 times the groove thickness. The width and thickness of the groove are preferably 0À8-1À2 mm. Thermoplastic resins which may be used include polyethylene, polypropylene, polyamides, polyvinylidene chloride, polystyrene, and polyesters. An apparatus has feed roll 2 and heated roll 3 from which the film proceeds to tension roll 4 via heated rolls 7, 8, 9 and 10. The film is cut after leaving 3 by a plurality of cutter blades 12. The tapes are finally wound on take-up rolls 20, 21 and 22.
Patent GB-1155771-A (GB)
Title: Improvements in or relating to Gas Lasers
IPC: H01S3/223
Filed: 1967-05-17
Abstract: 1,155,771. Lasers. SIEMENS A.G. 17 May, 1967 [18 May, 1966], No. 22904/67. Heading H1C. The active medium of a gas laser comprises a mixture of carbon dioxide, nitrogen and hydrogen, the partial pressure of the hydrogen being such that a greater power output is obtained than that produced when the hydrogen is omitted. In a discharge tube having a diameter of 20 to 30 mms. the partial pressures of the gaseous constituents may be 1: 2 to 4: 0À05 to 5, the preferred hydrogen pressure being about 1 mm. Hg. The gas mixture preferably flows through the tube at 5 m./sec., but may be static. In the preferred embodiment D.C. discharge electrodes are provided in inlet and outlet ports at opposite ends of the tube. The optimum partial pressure of hydrogen is stated to be approximately inversely proportional to the diameter of the discharge tube.
Patent GB-657778-A (GB)
Title: Improvements in or relating to a burner
IPC: F23L17/00
Filed: 1948-08-31
Abstract: 657,778. Burners. COMBUSTION ENGINEERING - SUPERHEATER, Inc. Aug. 31, 1948, No. 22917. Convention date, Sept. 19, 1947. [Class 75(i)] [Also in Group XII] In a burner of the type having a windbox, a centrally disposed fuel injector pipe, and means for supplying air through an annular chamber formed around said pipe in a casing, said chamber has an air inlet port formed in its wall extending substantially completely around said chamber near the outer wall of the windbox a cylindrical baffle supported within said windbox so as to extend across said port and spaced from said casing to form an annular air inlet opening to said port, and a second baffle spaced from and extending across said air inlet opening, and normally disposed in a plane substantially perpendicular to the axis of said injector pipe, and means for adjusting said baffle to vary the space between said baffle and said air inlet opening. The pulverized fuel burner shown has a burner pipe 1 having internal helical ribs 6 and supplied with fuel in flotation in primary air through a pipe 8 and a volute entrance section 7. Secondary air is delivered to the tip of the burner pipe 1 from a windbox 9 through a circumferential port 12 at the outer end of an annular chamber 11 surrounding the burner pipe 1. Dampers 13 rotatable on shafts 14 are arranged in the port 12 and are adjustable to provide an auxiliary control of the air flow by rotation of a ring 16 to which each damper is connected by a pin and slot connection. The main control of the air flow is effected by the adjustment of an annular baffle plate 20 in relation to an annular opening 19 formed by a cylindrical member 17 extending inwardly from the wall 18 of the windbox 9 in alignment with but spaced from the port 12. Certain of the shafts 14, designated 14a, are extended at both ends and at one end are secured by nuts 27 to plates 25, supporting and secured by bolts 26 to the baffle 20. At the other end each shaft 14a has a threaded portion 21 engaging a nut 22 fastened to the wall 18 and is provided with a handwheel 23 whereby it may be screwed inwardly or outwardly to adjust the spacing between the baffle 20 and the boundary edges of the opening 19. The shafts 14a may be adjusted evenly so that the plate 19 is parallel to the inner edge of the cylinder 17, or it may be necessary to adjust them so that the baffle 20 is inclined or warped in order to obtain the required uniform distribution of air within the annular chamber 11. Specification 562,078 is referred to.
Patent GB-1384306-A (GB)
Title: Automatic recording sphygmomanometer
IPC: A61B5/022
Filed: 1972-05-16
Abstract: 1384306 Sphygmomanometers M HURWITZ 16 May 1972 [2 Sept 1971] 22960/72 Heading ASK [Also in Division F2] A sphygnomanometer comprises an inflatable cuff 25 carrying a microphone 29 to detect Korotkoff sounds, an electronic circuit 123 which emits a digital output pulse for each Korotkoff sound pulse detected, a marker 54 responsive to said output pulses to record a single respective mark on a stationary recording medium 78 for each Korotkoff sound pulse, means for moving the marker so that its position relative to the recording medium is determined by the cuff pressure means 125 for indicating when the cuff has been inflated adequately to include the artery under cuff 25, a valve 84 operable in a closed mode during cuff-inflation, in a slow-leak mode to allow slow venting of the cuff during blood-pressure measurement, and in a quick-vent mode for releasing the cuff pressure after measurement, and a three-position switch 117, which may be operated by a lever 118 in synchronism with the valve 84, the switch 117 having a first position allowing Operation of signalling means 125 and preventing operation of the pulse recorder, a second position in which means 125 is cut off and the recorder is operational, and a third position in which all electrical parts of the apparatus are de-energised. Pressure in cuff 25 is transmitted to a bellows-assembly 38 operative to rotate a Shaft 46 carrying an arm 52 with a solenoid 53 having a plunger 54. Signals from microphone 29 are amplified and filtered by circuit 123 which includes a noise discriminator and gives output pulses which excite solenoid 53 to cause plunger 54 to produce dots on pressure-sensitive paper 78. An ink pen or a light and photosensitive paper may be alternatively used, and the marker may alternatively be moved rectilinearly. The positions of the first and last dots in a measurement correspond to the systolic and diastolic blood-pressures which may be read off on a scale around the periphery of a window 80. During cuff-inflation the arm 52 rotates until a pin 56 contacts an arm 72 of a disc 68, thereby completing a circuit to light a lamp 125 indicating that the cuff is adequately inflated, whereupon the operator moves lever 118 from an "inflate" to a "record" position. The pressure at which lamp 125 is energised is adjustable by rotating disc 68, this pressure being indicated through a window 81 by marks on the disc.
Patent GB-648553-A (GB)
Title: Improvements in footwear and the method of manufacturing the same
IPC: A43B13/36
Filed: 1948-09-01
Abstract: 648,553. Detachable soles. EPSZTEJN, W. Sept. 1, 1948, No. 23022. Convention date, Nov. 21, 1947. '[Class 17(ii)] A detachable sole unit is attached to an upper and insole unit, Fig. 1, by interlocking means mounted on plates f, h secured to the two units, respectively. As shown, a pivot pin e on the insole b, Fig. 1, engages a hole i, Fig. 3, in the sole and on relatively turning the two parts hooks g, a lip k, and a button m on the insole plate f engage respectively eccentric slots j, a slot l and a keyhole slot n on the sole plate h. A screw is inserted through hole o into a screwed hole p to lock the two units in position. In a modification described in the Specification as open to inspection under Sect. 91, the interlocking means comprise only buttons and keyhole slots over the sole and heel and a locking screw at the heel. The sole and heel also may be made separately. This subject-matter does not appear in the Specification as accepted.
Patent GB-1495678-A (GB)
Title: Method for the production of a heating mat and mat produced according to this method
IPC: H05B3/16
Filed: 1975-05-23
Abstract: 1495678 Resistance heating mats ELECTRICITE NEUCHATELOISE SA 23 May 1975 [13 June 1974] 23050/75 Heading H5H A heating mat is produced by stepwise advancing two parallel non-metallic bands 2, stretching insulated resistance wire 1 perpendicular to the bands 2 to form a meander pattern composed of parallel reaches 1a joined by end loops 1b which protrude beyond the side edges of the bands 2, and securing the parallel reaches 1a to the bands 2 by adhesive tape 3. The step-by-step advancement of the bands 2 can be controlled to create zones of the mat free of resistance wire 1. The wire 1 is wound about retractable bolts 6 of the assembly machine after its end has been secured, e.g. by adhesive tape to one of the bands. Holes 4 are stamped through the advancing bands 2 and adhesive tape 3. These are used for positioning the mats during installation. Connector boxes 5 on the bands 2 connect cold terminal wires to the ends of the heating wire 1. Boxes 5 contain connectors in the form of clips which squeeze on to the wire ends. The mats may be mounted on walls or ceilings and subsequently covered by a finishing surface. Alternatively they may be embedded in plaster panels or can be attached to insulating or non-insulating panels.
Patent GB-1042434-A (GB)
Title: Improvements relating to floor-treating appliances
IPC: A47L5/24
Filed: 1963-06-10
Abstract: 1,042,434. Floor-cleaning appliance. HOOVER Ltd. June. 10, 1963 [June 13, 1962], No. 23068/63. Addition to 928,046. Heading A4F. In a floor-cleaning appliance as claimed in the parent Specification, the bag 37 for dirty liquid is supported in the open top of the receptacle 21 for clean liquid so as to present two openings 34 and 35 one leading to the clean liquid receptacle and the other to the dirty liquid receptacle. A ring 30 having a cross-piece 33 forming the two openings 34 and 35 is supported on a shoulder 32 at the open end of the vessel 21, and the bag is clamped to a marginal flange 36 depending from the edge of the opening 35. Vents 40 are provided in the cross-piece so that when the vessel is clamped in position on the cleaning appliance the pressure above the two openings is the same.
Patent GB-186795-A (GB)
Title: An improved slide-on clip for papers, scarves, and other uses
IPC: B42F1/08
Filed: 1921-08-31
Abstract: 186,795. Greenaway, A. T. Aug. 31, 1921. Clips, spring-wire.-A clip for scarves, papers, &c. has two parallel flexible jaws with a spring tongue between them. A piece of wire is bent into a U-shape and bent over at b, b<1> to form the spring tongue c. The other end f of the U- shape is then bent over at d to form the other jaw of the clip and to bear on the tongue c. The end e is bent upwards to facilitate the entry of the scarf or papers at g.
Patent GB-802895-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/228
Filed: 1956-07-27
Abstract: 802,895. Valves. GARRETT CORPORATION. July 27, 1956 [Aug. 17, 1955], No. 23262/56. Class 135. A butterfly valve comprises a shaft 12 pivotally mounted in a housing 10 at an angle to the transverse plane of the bore 11, a disc-portion 13 of the shaft somewhat smaller than the bore 11, and a resilient valve sealing disc 16 carried by the discportion 13. The disc 16 has an edge portion 18 loosely engaging the rim 14 of disc 13 and is concavo-convex axially so that the pressure of fluid on its convex side will expand its periphery 21 into sealing engagement with the bore 11.
Patent GB-458915-A (GB)
Title: Improvements relating to universally-jointed piping for conveying liquids
IPC: F16L27/08
Filed: 1936-08-25
Abstract: 458,915. Universally-jointed piping. McGLASHAN, J., c/o McGlashan & Co., 9, Cathedral Lane, Glasgow. Aug. 25, 1936, No. 23279. [Classes 99 (i) and 99 (ii)] Two pipes 1, 2 are connected in a swivelling manner by a right-angled union 5 the ends 7, 8 of which are enlarged to form gland boxes 9 to receive end pieces 10, 10a on the said pipes and also joint-making packing for securing fluidtightness between the parts. As shown, the end pieces are each provided or formed with a collar 11 which seats upon the base 14 of its gland box, and the packing, which is compressed on the collar 11 by a nut 22, preferably comprises a loose leather &c. ring 15, a wrapping 16 of hemp or like yarn, a second leather ring 17 and a metal ring 18. The invention is particularly applicable to piping for conveying beer, the extreme ends of the pipes 1, 2 being connected respectively to a fixed conduit 3 leading to the dispensing apparatus and to a barrel (not shown) by unions 4, 6 similar to the union 5. The unions are provided with removable plugs 24 to facilitate cleaning the bores 13 thereof.
Patent GB-395884-A (GB)
Title: An electric switch and socket combination with protective arrangement
IPC: H01R13/707
Filed: 1932-08-20
Abstract: 395,884. Plug couplings combined with switches. DAVIES, D. W., Bryngwynfi, New Road, Treboeth, Swansea. Aug. 20, 1932, No. 23378. [Class 38 (i).] A switch socket comprises a pair of bars B pressed together by springs S at one end and acted upon centrally by a cam C attached to the switch knob. At one end the bars B when separated engage terminals T, to which the leads are attached, and at the other end they engage plugs inserted in the sockets H. If no plugs are inserted and the switch is moved to the " on " position, the bars B move across the sockets and prevent insertion of the plug, the other end of the bars remaining out of contact with the terminals T. The plugs have projections so that they are locked in the sockets when the switch is " on."
Patent GB-1074012-A (GB)
Title: Improvements in or relating to graphitic tool steels
IPC: C21D8/00
Filed: 1964-06-05
Abstract: A graphitic tool steel consists of 1.2 to 1.6% by weight of carbon, of which 0.2 to 0.5% is in the form of graphite, 0.8% to 1.5% of silicon, which may be partially or completely replaced by aluminium, the balance being iron and impurities except for a spheroidizing agent, which may be calcium, magnesium, or a rare earth metal. Additionally the steel may contain one or more of the following elements in the amounts stated.  .Manganese.0.2-2% .Chromium.0.25-1.5% .Nickel.0.25-2.5% .Molybdenum.0.2-1% .Tungsten.0.25-3.5% .Vanadium.0.08-0.12% The steel is hot worked
Patent GB-155384-A (GB)
Title: Improvements in or connected with tipping waggons and the like
IPC: B61D7/12
Filed: 1919-09-23
Abstract: 155,384. Koopman, M., and Johnston, H. Sept. 23, 1919. Tip-wagons.-Relates to tip-wagons of the kind in which one or more containers A, B are mounted pivotally at C upon the wagon frame in such a manner that when loaded the centre of gravity lies between the pivot and the open or discharging end, and when unloaded the centre of gravity lies on the opposite side of the pivot, so that the containers automatically tip and return to their normal position. Two containers A, B are pivoted upon the frame R, and a single partition Q, preferably converging towards its lower end, extends across the entire width of the wagon and serves as a closure to the adjacent open ends of both containers in their normal position. The containers are supported in the horizontal position by resting on transverse rods G, H connected to operating levers F which are raised for allowing the loads to discharge. Pins N on the containers engage behind catches N on the wagon frame so as to hold the containers in the tilted position until the catches are released, whereupon the containers automatically return to their normal position, being preferably aided in the latter movement by counterbalance plates P riveted near the ends of the containers.
Patent GB-676496-A (GB)
Title: A device for recording impulses
IPC: G01D1/02
Filed: 1950-09-25
Abstract: 676,496. Recording apparatus. LICENTIA PATENT-VERWALTUNGS GES. Sept. 25, 1950 [Oct. 20, 1949; Oct. 22, 1949; Oct. 22, 1949; Oct. 22, 1949], No. 23419/50. Class 106 (iv). A device for recording impulses is characterized by the inclusion of means for changing the ratio : input impulses/recorded impulses. In a known arrangement input impulses across a magnet 1 operate pawl and ratchet means 2, and a cam 3 causes energization of a second magnet 5 which by punching or other means, records on a clock-driven strip 8. In a modification a variable gear, or the equivalent, is introduced between the ratchet 2 and the cam 3. The applications of the device to the recording of heart or lung activity, the output of a Geiger-Muller counting tube, and road traffic intensity, are described.
Patent GB-314713-A (GB)
Title: Improvements in brake systems for rail vehicles
IPC: B61H7/02
Filed: 1928-08-14
Abstract: 314,713. Maley, A. W., and Taunton, E. M. Aug. 14, 1928. Skid.- In brakes for maximum traction trucks of tramcars, comprising wheel shoes applied by the drag of a magnetic track shoe through a cam, the cam shaft is connected to the track shoe by a long horizontally link so that variation in the vertical movement of the track shoe due to wear does not appreciably affect the force applied to the wheel shoes. The track shoe 3 supported by springs 4 is connected by a horizontal link 15 to a double cam lever 9 secured to a shaft 8 mounted in a bracket 6 carried bv a frame member 5. The cam lever 9 has two abutments 10 one or the other of which engages the yoke 11 according to the direction of travel of the vehicle when the shoe 3 is applied to the track, and thus applies the shoes 12 to the pony wheels 2 of the track. A member 17 extending from the angle-bar 16 which connects the shoe on either side of the vehicle engages a bracket 18 to limit transverse movement of the shoes 3. A member 14 and parts not shown are provided for application of the shoes 12 by hand when required.
Patent GB-899442-A (GB)
Title: Improvements relating to pneumatic or hydro-pneumatic suspensions in motor vehicles
IPC: B60G17/015
Filed: 1960-07-05
Abstract: 899,442. Fluid-spring suspension systems. DAIMLER-BENZ A.G. July 5, 1960 [July 25, 1959], No. 23465/60. Class 108(2). To prevent pressure differences arising between the diagonally opposed pairs of springs of a pneumatic or hydro-pneumatic suspension system when the vehicle is travelling on uneven roads or around curves, the springs on one axle are interconnected by a pipe 9 capable of being partially or completely throttled or closed. The springs 3, 4 are connected through height .regulating valves 8 to a pipe system 7 supplied by a receiver 6 and an air compressor 5. A valve 10 controlled by the engine ignition, the steering mechanism or a gravity device, such as a pendulum, is inserted in the pipe 9. Alternatively, the pipe may be permanently throttled.
Patent GB-815951-A (GB)
Title: Improvements relating to relief valve system for suction dredges
IPC: E02F3/90
Filed: 1957-07-24
Abstract: 815,951. Fluid-pressure servomotor-control systems. HOFER, D. L. July 24, 1957, No. 23474/57. Class 135. [Also in Group XXI] An hydraulic dredge 1 comprises a suction pipe 2 connected at one end to a pump 4 with a discharge pipe 5; a butterfly relief valve 6 is disposed in the wall of the suction pipe 2 near its intake end 3. Should a low-pressure occur in the discharge pipe 5, due for example to blocking of the pipe 2, a pressure-responsive switch 27 operates to de-energize a solenoid 19 whereupon a spring 24 moves a three-way valve 18 to a position where a pipe 17 connected to the cylinder of a singleacting piston 16 is vented thus enabling a spring 10, joined to the valve 6 and piston 16 by a cable 8, to open the valve 6, the incoming water relieving the abnormal pumping condition. When this condition is eliminated the switch 27 closes energizing the solenoid 19 to move the valve 18 to the position shown wherein air from a restricted supply pipe 22 is fed into pipe 17 to retract the piston 16 slowly and hence close the valve 6. An excessive pressure in pipe 5 accompanied by a low vacuum in pipe 2 causes the opening of corresponding parallel connected switches 28, 32 and consequent quick opening and slow closing of the valve 6 as above described; switches 27, 28 are in series. Failure of electric current to the solenoid 19 or of the air supply to the valve 18 will effect an opening of valve 6 ; the same thing will occur upon manual operation of a switch 37. Manually actuable valves 31, 36 are disposed in the connections between the switches 27, 28 and 32 respectively; a similar valve 23 is located in the pipe 22.
Patent GB-785596-A (GB)
Title: Improvements in rotary pumps
IPC: F04B43/14
Filed: 1955-08-16
Abstract: 785,596. Rotary pumps. FORD, R. C. Aug. 14, 1956 [Aug. 16, 1955], No. 23539/55. Class 110(2). A flexible-tube type of pump such as described in Specifications 590,045, 612,604, 744,413, 744,414 and 785,597 is provided with extra outlet area, either by means of an additional front 11, before the outlet 12, or an enlarged outlet 12a. Rollers 9 may be resiliently mounted in the rotor 10.
Patent GB-907753-A (GB)
Title: Piston and piston ring assembly
IPC: F16J9/20
Filed: 1960-07-06
Abstract: 907,753. Piston rings. GOETZEWERKE FRIEDRICH GOETZE A.G. July 6, 1960 [Sept. 30, 1959], No. 23669/60. Class 122 (1). A piston and oil scraper ring assembly comprises two rings 3, 4 of different cross-section urged radially outwards and against the sides of the piston groove 1 by a garter spring 2 bearing against a bevelled surface on each ring, the bevelled surfaces being of differing inclination to the piston axis. The arrangement is such that the lower edges, i.e. those nearest the sump when the assembly is installed in an engine, of each ring bear against the cylinder wall with a higher pressure than the upper edges.
Patent GB-501211-A (GB)
Title: Improvements in or relating to high frequency amplifiers
IPC: H03G3/22
Filed: 1937-08-30
Abstract: 501,211. Valve circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 30, 1937, No. 23676. Convention date, Aug. 29, 1936. [Class 40 (v)] In a wide-band amplifier, such as a television I.F. amplifier, a bandpass coupling transformer is so loaded that variation of the selectivity characteristic due to variation of the effective capacity of the amplifying valves with A.V.C. grid bias, is avoided. As shown, the @uned band-pass transformers 16, 32 are loaded by resistances 31, 47 respectively connected across the secondary of the first transformer and the primary of the second. The I.F. valves 24, 41 associated with said transformers are controlled by A.V.C. potentials derived from the full-wave second detector 54 and amplified by the D.C. amplifier 64. In alternative arrangements both primary and secondary windings of the band-pass transformers are loaded and series resistances or coils of resistance wire may be used instead of parallel connected loading resistances.