baber/WOPTO huggingface dataset:
Patent GB-510068-A (GB)
Title: Improvements in or relating to the filing of letters, papers and the like
IPC: B42F13/24
Filed: 1938-11-22
Abstract: 510,068. Loose-leaf binders. JETLEY, J. G. Nov. 22, 1938, No. 33960. [Class 146 (i)] In a letter file, the leaf - spring 20 makes line contact with the member 15 connecting the filing-posts 14. The spring may have a convex part 21 engaging the flats 17, 18 on the member 15, or the spring may have a rounded protuberance to engage corresponding depressions or recesses. The leaf-spring may be replaced by a spring- hinged rigid member. Member 15 is housed in tongues 16 pressed out from the base 12.
Patent GB-1356758-A (GB)
Title: Microporous polyarylene polyether membranes
IPC: C08J9/28
Filed: 1972-07-20
Abstract: 1356758 Polyarylene polyether membranes KHONE-POULENO SA 20 July 1972 [21 July 1971] 34045/72 Heading B5B A polyarylene polyether membrane has, on each of its faces, pores of diameter between 0À1 and 25 Á, at least some of these pores passing through the entire thickness of the membrane. The polyarylene polyether may consist essentially of a plurality of units of the formula in which Q represents a phenyl radical, Q<SP>1</SP> represents a phenyl radical, a phenyl radical substituted by up to 5 alkyl radicals with 1 to 8 carbon atoms, a biphenyl radical, a terphenylyl radical or a naphthyl radical, A represents a halogen atom and y, the value of which can vary from one unit to another, is equal to 0, 1, 2, 3 or 4. Q and Q<SP>1</SP> may both represent a phenyl radical and y may be 0, or may have an average value between 0À5 and 2 in which case A represents a chlorine atom. The specific viscosity of the polyarylene polyether may be between 0À3 and 1À5, especially between 0À5 and 1, measured at 25 C. as a 5 g./l. solution in cyclohexanone. The membrane is made by (a) forming a solution of the polyarylene polyether with a solvent and a non-solvent for the polymer, the solvent and non-solvent being miscible with one another, (b) casting the solution on a temporary support, (c) leaving the polymer layer on the support in air for 1 second to 3 minutes, at a temperature of between 10 C. and the boiling point of the most volatile constituent of the solution, (d) immersing the polymer layer, still on its support, in a coagulation bath, and (e) separating the membrane from the support and drying it. Suitable solvents include cyclohexane, benzene, toluene, dichloromethane, dichloroethylene, trichloroethylene, tetrachloroethylene, chloroform, dichlorobenzene, monochlorobenzene, cyclohexanone, N-methyl-2-pyrrolidone, dimethyl formamide, dimethyl acetamide and tetrahydrofurane. Specified non-solvents include water, methanol, primary, secondary or tertiary butanol, acetone and methyl ethyl ketone, the non- solvent preferably amounting to between 8 and 15% by weight based on the weight of the solution. The coagulation bath may comprise methanol, ethanol, or an aqueous solution thereof. In examples, a polymer of the given formula is used, in which Q and Q<SP>1</SP> represent a phenyl radical and y is zero; cyclohexanone-isbutanol mixtures are used as solvent, and methanol as coagulant. The object of treating with coagulating liquid is to gel the polymer solution or to complete any initial gel formation. This treatment is preferably carried out at room temperature. Depending on the shape of the support membranes of various shapes, e.g. planar, tubular and spiral, may be made. The membrane may also be reinforced by a woven, non-woven or knitted fabric of natural or synthetic fibres. Such membranes are prepared by casting on to the screen borne by the support. The membranes of the invention find application as separators in accumulators, for the degassing of aqueous solutions, and for carrying out gas exchanges with blood.
Patent GB-898558-A (GB)
Title: Salt bath induction furnace
Inventor: HARRIS GEORGE VICTOR
IPC: H05B6/20
Filed: 1958-10-24
Abstract: 898,558. Salt bath induction furnaces. LINDBERG ENGINEERING CO. Oct. 24, 1958, No. 34165/58. Class 39(3) The body of a salt bath furnace comprises an annular channel section metal shell 11 lined with refractory material 12 and interrupted at at least one point in its circumference so as not to constitute a closed current conducting element. The body is rotatable by motors 18 on rollers 15 and 17 and is provided with a hood 25 having an opening for loading and unloading of articles 27 to be treated which are suspended from cross rods 28. Heating current is induced in a metallic liner 23 which also protects the refractory material 12 when the salt is a carburizing type. A temperature responsive device 29, preferably an enclosed thermocouple or like temperature sensing instrument, may be used to control the current flow in a primary coil 22 wound on a core 21. A modification, Fig. 4, is adapted for neutral type salts which are corrosive to metal and which may be retained adequately by the refractory lining 12. An expendable ring 24 of a nickel chrome alloy constitutes the secondary winding.
Patent GB-776637-A (GB)
Title: Improvements in or relating to disc-shaped spacing members for coaxial high-frequency transmission lines
IPC: H01B11/18
Filed: 1955-11-30
Abstract: 776,637. Cables. SIEMENS & HALSKE AKT.- GES. Nov. 30, 1955 [Nov. 30, 1954], No. 34299/55. Class 36. A spacing disc 2 extruded on to the inner conductor 1 of a coaxial line (has frustoconical extensions 3, 4) in the imme - diate vicinity of the conductor.
Patent GB-1083577-A (GB)
Title: Improvements in or relating to silencers for exhaust gases
IPC: F01N1/08
Filed: 1963-08-29
Abstract: 1,083,577. Exhaust silencers. F.H. KYFFIN. Nov. 4, 1964 [Aug.29, 1963], No.54322/63. Heading F1B. A silencer comprises an inlet pipe 14 with a closed end 15, one or more return flow pipes 20 and an outlet flow pipe 21. Pipe 14 opens into chamber 27 through apertures 16 and the gases flow through pipe 20, passing through resonance chamber 26, to chamber 25 from which they flow through the outlet pipe 21. In Fig. 10 (not shown) the return flow pipe 20 is formed by a U-shaped member attached to pipe 21.
Patent GB-1035735-A (GB)
Title: Agitator system for centrepost agitator washer
IPC: D06F13/02
Filed: 1964-08-24
Abstract: 1, 035, 735. Washing machines. WESTING- HOUSE ELECTRIC CORPORATION. Aug. 24, 1964 [Sept. 23, 1963], No. 34510/64. Heading D1A. In a washing machine having a screw or spiral type agitator 30 which oscillates about a vertical axis within a spinnable clothes basket 26 mounted in a tub, restraining means 34 are provided which, during agitation, prevent movement of the basket in one direction while allowing it to move freely in the other direction. As shown, agitator 30 and perforated basket 26 are secured respectively to an oscillatable drive shaft 18 and a rotatable drive shaft 22. Rotation, in one direction, of basket 26 during rotation is prevented by over-running clutch 34 which comprises a coil spring, preferably of square section wire, whose ends are secured respectively to the stationary housing and the rotary gear frame 16 so that rotation in one direction causes tightening of the spring round the frame 16.
Patent GB-467199-A (GB)
Title: Improvements in or relating to electro-magnetically operated reciprocating devices
IPC: H02K33/10
Filed: 1935-12-12
Abstract: 467,199. Electromagnetic interrupters. SANDERSON, E. P., and AMAL, Ltd. Dec. 12, 1935, Nos. 34528 /35 and 30585/36. [Class 38 (v)] [Also in Groups XXVIII and XXXV] An electromagnetically operated reciprocating device for use in pumps, hammer mechanisms, &c. comprises a reciprocating member, a main solenoid adapted to actuate said member, a make-and-break switch included in the main solenoid circuit one contact of which is operated by the reciprocating member, an auxiliary control solenoid connected either in series or in parallel with the main solenoid and controlled by said make-and-break switch, the control solenoid being adapted to keep the make-andbreak switch closed during part of the positive or forward stroke of the reciprocating member, a stop or the like acting to open the make-andbreak switch near the end of the forward stroke, and a spring or like means keeping the make- and-break switch open during the return stroke. As shown in Fig. 2 of the first Provisional Specification the main electromagnet 3 is mounted on a core 2 through which passes a rod 17 carrying a main armature 4 at its lower end and at its upper end an auxiliary solenoid 21 connected in parallel or in series with the main solenoid. Secured to the upper end of the rod 17 is a contact 27 normally engaging a contact 29 attached to an armature 30 carried by a blade spring 31 and when the circuit of the electromagnets is completed, during the first upward movement of the rod 17 the contacts 27, 29 travel upwardly together owing to the attraction of the armature 30 by the auxiliary electromagnet. At or near the end of the stroke of the rod 17, however, the end of the armature 30 engages a stop 36, which may be adjustable and the rod 17 by continuing its upward movement owing to the inertia of the moving parts, separates the contacts and breaks the circuit of the electromagnets. The armature 30 then springs back rapidly to the position shown causing a rapid separation of the contacts, the rod 17 being returned by the spring 39. Thus contact is not re-made until the armature has completed its return stroke. The contact separation is made in the field of the auxiliary electromagnet which thus has a magnetic blowout effect and a spark-reducing condenser may be connected across the contacts. The windings of the main and auxiliary solenoids are so made that the reverse induced voltage set up by the latter prevents the building up of a high-sparking voltage. The armature 4 as shown is attached to the operating diaphragm 5 of a fuel pump with inlet connection 8, gauze filter 12, pumping chamber 9 and non-return or ball outlet valve 14. In a modified driving arrangement the auxiliary solenoid is made stationary, the relatively fixed interrupter contact being mounted on an armature adapted to be attracted to this solenoid during a portion of the upward stroke of the main armature.
Patent GB-1198952-A (GB)
Title: Improvements in or relating to Electromagnetic Brakes
IPC: F16D65/46
Filed: 1968-07-19
Abstract: 1,198,952. Electromagnetic brakes. BROWN, BOVERI & CO. Ltd. 19 July, 1968 [21 July, 1967], No. 34558/68. Heading F2E. The invention is a spring-applied, electromagnetically-released, brake with a spring adjuster at one end of the spring assembly, and an abutment (for transmitting spring force) at the other end of the assembly, and means for producing relative movement between the adjuster and the abutment to disengage the brake even when the electromagnet is not energized. As shown, a circular disc 1, slidable on but keyed to the shaft 3 of an electric motor, has bothsurfaces lined with annular bands 2 of friction material and co-operates with a portion 19 of the motor casing and an annular friction surface 5a provided on a ring 5 secured to a circular carrier plate 9. The ring and plate assembly 5, 9 is axially guided by pins 4 and urged to " brake on " position by a spring 15 surrounding a rod 7 welded to the plate. The brake is released by an electromagnet 14 which attracts an armature 6, welded to the plate 9, when the motor is switched on. The degree of compression of spring 15, and hence the braking torque, may be regulated by screwing or unscrewing a hollow adjuster bolt 13 in a hub 12 forming part of the casing 11. Once adjusted, the bolt 13 may be axially fixed by co-operation of its hexagonal head with a corresponding opening in a plate 17, subsequently bolted at 18 to the casing 11. To disengage the brake when the electromagnet is not energized, a long bolt 20, Fig. 2, has a washer 21 placed under its head; the bolt is then screwed into a threaded aperture 8 in the rod 7 so that the washer abuts the adjuster bolt 13. The bolt 20 may now be rotated to draw rod 7 and plate 9 to the left, against the force of spring 15, to disengage the brake. When not in use the long bolt 20 may be accommodated in the threaded aperture 8, Fig. 1.
Patent GB-1311974-A (GB)
Title: Method of and machine for producing brushes with at least two  different types of bristles
IPC: A46D3/04
Filed: 1970-07-16
Abstract: 1311974 Brush making apparatus and brushes made thereby H ZAHORANSKY [trading as ANTON ZAHORANSKY] 16 July 1970 [31 July 1969] 34598/70 Heading A4K A machine for making brushes in which each tuft of bristles has one or two bristles 3a of a different thickness to the rest of the bristles 2a comprises a filling tool 1 to which the two types of bristles are carried from two separate magazines 2, 3 in two grooves 12 and 11 respectively in a cresent-shaped reciprocating feeder 4, said two grooves spaced apart by a distance equal to distance between the central axes of the magazines and being large enough to accommodate a plurality of bristles and one two or three bristles respectively. A lever 6 which is pivoted to a pin 9 fixed on the machine and is moveable by a piston 8 and cylinder 7 holds the bristles in the magazines before the feeder 4 is moved to a position in front of the magazines.
Patent GB-1359716-A (GB)
Title: Modular assemblies
IPC: E04B2/72
Filed: 1971-07-23
Abstract: 1359716 Structural elements for buildings AUTOIPARI KUTATO INTEZET 23 July 1971 [31 July 1970] 34602/71 Heading E1K [Also in Division F2] Two section members 1, 2, which may be in the form of beams, slabs or panels, e.g. of metal, for building construction, are connected together to form a rigid structure by the interengagement of tongue and groove formations of the form shown wherein each member has a long tongue and a short tongue and the recesses are provided in the inner faces of the tongues. Various modifications are described, e.g. the webs of the members 1, 2 may be inclined to the main faces provided with the tongues (Fig. 3, not shown), and the shapes of the tongues and recesses may be varied (Figs. 3-7, not shown).
Patent GB-1119700-A (GB)
Title: By-pass or ducted fan gas turbine engine having flow-dividing splitter
Inventor: FLIGG JAMES ALMA
IPC: F04D29/68
Filed: 1966-08-02
Abstract: 1,119,700. Gas turbine jet engines; axial-flow compressors. UNITED AIRCRAFT CORP. Aug. 2, 1966, No. 34604/66. Headings F1C and F1J. In a by-pass or ducted fan gas turbine engine the flow from the last stage 2, 4 of a fan or compressor is divided by a splitter 16 spaced from the downstream edges 36 of the blades 4 by a distance of 0À117 or less than the chord length of the blades 4 at the position of the splitter. The splitter causes a higher velocity. flow at the root portions of the blades 4 to thereby delay stall.
Patent GB-1000833-A (GB)
Title: Current limiting networks
IPC: H03K3/315
Filed: 1961-09-27
Abstract: 1,000,833. Semi-conductor trigger circuits; current limiter circuits. WESTERN ELECTRIC CO. Inc. Sept. 27, 1961 [Oct. 11, 1960], No. 34655/61. Heading H3T. A voltage controlled negative resistance device has means connected to it which compensates the negative resistance region to produce a region exhibiting substantially constant current. A trigger circuit, Fig. 1, comprises a tunnel diode 16 connected in the base circuit of a transistor 10. The diode 16 may be biased for astable, monostable, or bistable operation and switching transistor 10 between its " off " and " on " conditions. To prevent transistor 10 from saturating in its " on " condition a current limiter comprising a tunnel diode 13 and a resistor 15 is connected in the emitter circuit. Referring to Fig. 3, the value of resistor 15 is made numerically equal to the value of the negative resistance region of the diode 13 so that the resulting current/ voltage curve exhibits a substantially constant current region.
Patent GB-1300291-A (GB)
Title: Multiple analysis hematology control
Inventor: DECASPERIS ANTHONY JOSEPH
IPC: G01N33/96
Filed: 1970-07-17
Abstract: 1300291 Haematology control fluid; stabilising fowl red cells PFIZER Inc 17 July 1970 34665/70 Heading B1X Fowl red blood cells are stabilized by a process comprising mixing an 8% suspension of the cells in 0.45% saline with an equal volume of 1% mercuric chloride in 0.45% saline, heating the resulting mixture at 37‹C for about 19 hours, centrifuging and resuspending the cells as a 4% suspension in saline, combining with the cell suspension an equal volume of a 0.0025% solution of tannic acid in 0.45% saline buffered at pH 7.2, incubating for 30 to 60 minutes at about 50‹C, centrifuging, incubating at 0.01 to 20% suspension of the cells in 5.0% glutaraldehyde in an isotonic solution buffered at pH 7.2 at 37‹C for 16-20 hours and washing the cells 3 or 4 times with the buffered isotonic solution, separating the cells by centrifugation after each washing. A hematology control fluid comprises a suspension of fresh human red blood cells and the tanned fowl red blood cells prepared as above in a volume of anticoagulant-containing serologically compatible human plasma medium which is approximately equal to the packed volume of the human cells, the concentration of the fowl cells being 5,000-10,000 per cubic millimeter. The fowl cells may be goose, chicken, duck or (preferably) turkey cells. Reference has been directed by the Comptroller to Specifications 1,131,690 and 1,215,662.
Patent GB-1315775-A (GB)
Title: Circuit arrangements for generating a high-voltage spark
IPC: F23Q3/00
Filed: 1971-07-23
Abstract: 1315775 Ignition systems BRAUN A G 23 July 1971 [27 July 1970] 34673/71 Heading FIB An ignition system for producing a high voltage spark has a circuit T, TR1 functioning as a blocking oscillater and a voltage transformer, supplied from a source of low DC voltage B. At least two capacitors C1, C2 are connected to a high voltage transformer winding L3 to be charged in parallel in one position of a switch S and connected in series in another position of the switch and discharged through the primary of atransformer TR2, the secondary L5 of which applies voltage to an ignition spark gap F. The invention is applicable to table or pocket lighter.
Patent GB-645951-A (GB)
Title: Process for melting glass and the like
IPC: C03B5/235
Filed: 1947-12-30
Abstract: 645,951. Gas-turbines. UNION DES VERRERIES MECANIQUES BELGES SOC. ANON., HENRY, G., and BRICHARD, E Dec. 30, 1947. No. 34703. Convention date, Feb. 18. 1939. [Class 110(iii)] [Also in Groups XII and XXIII] Gaseous fuel and air are supplied to a melting furnace b by compressors l and m driven by a gas turbine k supplied with combustion products from the furnace shaft a. The combustion products first pass through a recuperator j for preheating the air and escape from the turbine through a second air recuperator n. Specification 646,000, [Group XII], is referred to.
Patent GB-737077-A (GB)
Title: Electric apparatus for indicating the condition of a variable
Inventor: IBBOTT HAROLD WILLIAM
Filed: 1953-12-14
Abstract: 737,077. Temperature-responsive actuating-elements. NEGRETTI & ZAMBRA, Ltd. Dec. 14, 1953, No. 34799/53. Class 64 (2). [Also in Groups XXXVI, XXXVII and XXXVIII] An element employed in a system for the indication of temperature (see Group XXXVIII), comprises a brass tube 16 enclosing a heater winding 8 and mounted at one end in an opening 18 in a brass housing 19. The free end of the tube is secured to a lever 22 pivotally supported by a sealing diaphragm 24 whereby the lever - is moved on differential expansion between the tube and housing. To reduce heat transfer, the outer surface of the tube and inner surface of the housing are polished, and the space between the tube and housing is evacuated.
Patent GB-1429734-A (GB)
Title: Vehicle elevating apparatus
IPC: B60S5/00
Filed: 1973-07-21
Abstract: 1429734 Vehicle lifts GKN TRANSMISSIONS Ltd 20 March 1974 [21 July 1973] 34857/73 Heading B8H Vehicle elevating apparatus comprises a pair of vertical pillars (11, 12), Fig. 1 (not shown), along each of which moves a carriage having a pair of vehicle engaging arms 13, 14 and 15, 16 pivotally mounted thereon, respectively, the apparatus including a safety arrangement whereby the arms 13-16, during their descent, stop when an appropriate safety clearance remains thereunder to prevent the occurrence of an accident such as an operator's foot being trapped under the arms. The carriages are driven along the pillars by an electric motor 21 which forms part of the electric circuit of Fig. 3, the circuit including a limit switch 34 mounted on one or other of the pillars and operable by contact with the carriage passing along the pillar to stop the electric motor and thus the descent of the arms when the latter are a short distance above their lowermost position. By means of a manual override switch 35 which short-circuits the switch 34 it is possible to continue the lowering of the arms 13-16 to their lowermost position. The switches 34, 35 are typically micro-switches.
Patent GB-212669-A (GB)
Title: Improvements in or relating to the production of explosive mixture for internal combustion engines
IPC: F02M1/00
Filed: 1922-12-22
Abstract: 212,669. Pickard, W. Dec. 22, 1922. Spray carburettors in which steam as well as fuel is admitted to the nozzle, are arranged so that the water supply to the steam generator. the steam supply, and the fuel supply are all controlled simultaneously by the accelerator lever; the fuel supply to the slow-running nozzle may also be controlled by the same lever. As shown in. Figs. 4 and 5 the nozzle is supplied with either steam from a pipe 12 or fuel from a pipe 14 according to the position of a cock 16, having two passages. the steam passing up a coiled pipe 17 and the fuel up a vertical pipe. These pipes are heated bv exhaust gas circulating through a chamber 25 by pipes 26, 27. The cock 16 is rotatied in conjunction with the throttle valve 22 from a rod 23 through levers 21, 18. The spindle of the throttle valve also carries an arm 37 which rotates a cock 34 and so closes the fuel supply to the slow-running nozzle 33 when the throttle is opened. The supply of air, to form the slow-running mixture, is regulated by the hand-actuated valve 42, and the fuel may be heated by an electrically heated coil inside a cylindrical chamber 39. The main air supply is regulated by a sleeve 44 which can be rotated by a rod 46 to uncover ports 43. The steam is generated by the exhaust gas which circulates around a series of indented tubes in a casing 1, water being fed by a pipe 7 from a tank 6 past a cock 8 which is controlled from the rod 23 by a lever 24. A pipe 30 allows the pressure of the exhaust gas to act on the surface of the water in the tank 6. The steam passes through a nozzle and a water trap 10 to the pipe 12.
Patent GB-486738-A (GB)
Title: Process and apparatus for the extraction and treatment of medulla from plants
IPC: C08H99/00
Filed: 1937-12-17
Abstract: 486,738. Separating pith. ZWICKL, G. Dec. 17, 1937, No. 34991. [Class 59] [Also in Groups VIII and V] Plants containing medulla, e.g. Indian corn stalks, are disintegrated dry, e.g. in a stamping mill, fed into a hopper supplying a graduated succession of cylindrical screen sections, each feeding through a hopper 7 a conveyer band 8. Air from slots along each side of a pipe 11 above each band 8 blows the medulla particles 20 towards the sides of the band 8 whence they collect through hoppers 16, 18, the fibres passing between adjustable guide plates 15 into a hopper 17. The medulla may be further cleaned as by flotation and boiling. It may be compressed for transport or storage and loosened mechanically and by steaming or boiling before use. The medulla may be mixed with casein, cement, resin, bitumen, glue, paper pulp, fillers, &c. and moulded into heat or sound insulation bricks or used as a substitute for cork in linoleum. The medulla or the products made therefrom may be treated with copper sulphate, tar products, formaldehyde, paraffin, resin soaps, &c.