baber/WOPTO huggingface dataset:
Patent GB-1170996-A (GB)
Title: Improvements in Holders for Containers.
Inventor: FORSTER WILLIAM EDWARD
IPC: B65D59/04
Filed: 1967-04-27
Abstract: 1,170,996. Sleeve for cans; packaging cans. METAL BOX CO. Ltd. 4 March, 1968 [27 April, 1967], No. 19523/67. Headings B8C and B8P. An open-ended cardboard sleeve erected from a blank, Fig. 1 (not shown), may hold at least two containers 1 arranged end to end to form a package. Alternate panels 3, 4 &c. defined by scores or creases have openings 21 to receive the rims 24 of the containers 1. Shallow V- shaped cut-away portions 19, 20 in the ends of the sleeve act as guides during insertion of the container 1. Panel 3, (9) have transverse perforation line 23 and panels 5, (7) are formed with tear strips 22 for opening.
Patent GB-645322-A (GB)
Title: Improvements in and relating to stabilized oscillators incorporating electron discharge tubes
IPC: H03B5/10
Filed: 1948-07-21
Abstract: 645,322. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. July 21, 1948, No. 19534. Convention date, July 23, 1947. [Class 40 (vi)] The waveform of an oscillator of the cathode-coupled type is rendered more nearly sinusoidal by negative feed - back, which is introduced by means of resistance 17 in the cathode lead. The arrangement also renders the power output more nearly constant where the oscillator is required to tune over a frequency band, or, as shown, is operated in a number of bands by means of ganged switches 8, 9 ; in this case, separate resistances 17 may be provided for each range. Reference has been directed by the Comptroller to Specification 483,918.
Patent GB-980151-A (GB)
Title: Improvements in fluid control valve assemblies
IPC: F16K41/04
Filed: 1963-05-16
Abstract: 980,151. Valves. ROSS OPERATING VALVE CO. May 16, 1963 [May 24, 1962], No. 19568/63. Heading F2V. A valve assembly comprises a port 16, Fig. 1, between inlet and outlet chambers 13, 14, a valve stem 17 movable axially of the port, this stem having an integral first shoulder 29 disposed substantially within the port in closed position and within the inlet chamber 13 in open position and provided with a gradually curved fillet 30 on the low pressure side and a flat surface on the other side, a second integral shoulder 32 on the stem, an annular sealing member 31, of rubber-like resilient flexible material closely received between the shoulders and so dimensioned as to be substantially flexible in the axial direction, the port being of constant diameter and having a flat seating surface engaged by a substantial outer area of the sealing member. The sealing member can be readily forced over the smaller shoulder 32 into assembled position. In another embodiment, the valve is actuated by external fluid pressure applied to a piston carried by the stem, and controls communication between the inlet and a work port, a second sealing member carried by the stem controlling communication between this work port and an exhaust chamber. In a modification, a single valve as in Fig. 1 is actuated similarly by external pressure applied to a piston.
Patent GB-200703-A (GB)
Title: Improvements relating to roofing sheets, tiles and the like
IPC: E04D3/32
Filed: 1922-07-17
Abstract: 200,703. British Fibrocement Works, Ltd., and Buxton, G. H. July 17, 1922. Roofing tiles.-Corrugated roofing sheets, tiles &c., of asbestos cement or like composition, adapted to be laid in successive courses, have throughout the width a portion at the lower end A<1>, B<1> offset above the normal plane of the sheet. and corrugated corresponding to the remainder of the sheet, thus forming a socket to receive the upper end of an adjacent lower sheet. The marginal corrugations A<2> are offset higher than the intermediate offset portions.
Patent GB-1432100-A (GB)
Title: Structural steel articles strengthened by heat treatment
IPC: C21D9/52
Filed: 1974-05-03
Abstract: 1432100 Heat-treating steel N I INST BETONA I ZHELEZOBETONA GOSSTROYA SSSR and MAKEEV METALLURGICHE ZAVOD IM SM KIROVA MICHERMETA URKAIN SSR 3 May 1974 19637/74 Heading C7 A structural steel component comprises a core of tempered martensite, an intermediate transitional zone and a surface layer of sorbite. Preferably the surface layer has a depth of 0À01 to 0À1 times the thickness of the component, and the intermediate layer a depth of 0À02 to 0À25 times that thickness. The structure is obtained by firstly forming a uniform tempered martensite structure, followed by superficial heating, preferably by induction to 720-770‹C followed by cooling. The invention is concerned particularly with reinforcing rods for concrete.
Patent GB-352232-A (GB)
Title: Apparatus for chiselling grooves, such as those on doors, windows and the like
Inventor: LARS BRUUN
IPC: B27F5/12
Filed: 1930-06-27
Abstract: 352,232. Grooving wood. BRUUN, L., 22, Hoffgardsgate, Drammen, Norway. June 27, 1930, No. 19646. Convention date, June 28, 1929. [Class 145 (i).] A machine for chiselling grooves in woodwork comprises of one or more V-shaped chisels which are adapted to reciprocate rapidly in a longitudinal direction and at the same time may be displaced at right-angles to such direction relatively to the work. Fig. 1 shows a portable machine comprising two chisels 13,14 clamped at 17, 18 to connecting rods 19, 20 driven by crank pins 21, 22 upon pinions 7, 8 driven by a pinion 5 connected to a motor attached to the casing 1. The chisels are suitably guided so that the outer edges are vertical as shown in Fig. 8. The chisels operate in a space 29 provided in a guide 28 movable in two directions to determine the length and depth of the groove. Fig. 6 shows an arrangement when one chisel is employed, the chisel 43 being secured in a supporting member 38 sliding in a member 37 which may be rotated between certain limits by a lever 42 so that in passing across a groove the chisel may be moved from the position 43<1> to the position 43<11> as shown in Fig. 7.
Patent GB-476513-A (GB)
Title: Improvements relating to electrical connecting caps
IPC: H01M50/543
Filed: 1936-07-16
Abstract: 476,513. Soldering electric terminals. KLEINMANN, E., and MENDEL, A. July 16, 1936, No. 19776. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXVI] In order to confine to a limited area the solder employed to attach a lug 3 to a metal cap 1, such as those used for capping carbon electrodes, the required area is either formed as a depression, or is roughened. The depression 2, Fig. 1, extends only part-way through the thickness of the cap 1. If a roughened area 4, Fig. 3, is employed it retains the solder upon it.
Patent GB-893132-A (GB)
Title: Improvements in weed extracting machines
Inventor: WHITFIELD JOHN WILLIAM
IPC: A01B39/08
Filed: 1959-06-10
Abstract: 893,132. Agricultural implements. WHITFIELD BROS. (ENGINEERS) Ltd. June 9, 1960 [June 10, 1959], No. 19819/59. Class 6(1). A weeding machine comprises blades 18 mounted on shafts 16, 17 which extend longitudinally of a three wheeled frame. The shafts are driven by gearing from a motor which also drives a pair of rear wheels 10 through worm and wheel gearing the arrangement being such that the cutters revolve to throw the cut plants outwardly. The blades 18 are mounted in friction discs secured to the shafts to allow the blades to slip on meeting an obstruction.
Patent GB-1343679-A (GB)
Title: Valve assemblies
IPC: F16L41/02
Filed: 1971-06-10
Abstract: 1343679 Valves DANFOSS AS 10 June 1971 [11 July 1970] 19904/71 Heading F2V A valve assembly has at least two valve blocks 1, 2 held together by at least one clamping element constituted by a tension spring 28 enlarged at each of its two ends to engage complementary recesses 27 in adjoining faces of the blocks. The enlarged ends may be of circular configuration and extend through 270 degrees or more. A centering portion 24 having 0-ring seals 25 may be used to connect fluid passages 14, 15 in the blocks and to prevent relative movement in a direction which would be unopposed by the springs. In-line or L-shaped assemblies of magnetic valves may be formed for use in hydraulic systems or washing machines.
Patent GB-199967-A (GB)
Title: An improved electric water heater
IPC: F24H1/12
Filed: 1922-07-20
Abstract: 199,967. Newhouse, F. L., Smith, C. H., and Electric Fires, Ltd. July 20, 1922. Heating by electricity.-In an electric geyser, water entering the tube i passes to a chamber g and thence between heating elements e and tubes d to the chamber h and outlet j. The elements are supported in a partition f in the lower chamber by means of a screwed cap q.
Patent GB-687115-A (GB)
Title: Control system for the automatic regulation of the speed of prime movers
IPC: H02P23/00
Filed: 1950-08-10
Abstract: 687,115. Gas turbine fuel supply. DE HAVILLAND AIRCRAFT CO., Ltd., and MAINE, A. E. Sept. 17, 1951 [Aug. 10, 1950], No. 19951/50. Drawings to Specification. Class 110(iii) [Also in Group XXXV] In an electric system of over-riding control for the speed regulator of a turbo jet engine wherein if the speed rises to 105 per cent of the maximum rating, the speed is automatically reduced by a limit relay-operated by a tachogenerator (see Group XXXV), an additional relay may be provided which is operated at excessive speed (120 per cent) to cut off the fuel supply and simultaneously feather the propeller. Provision is also made for control at 75 per cent maximum speed to reduce the possibility of the engine exceeding the permissible speed should acceleration become excessive.
Patent GB-767504-A (GB)
Title: Improvements relating to laminated spring assemblies
Inventor: HODGSON ALAN
IPC: F16F1/26
Filed: 1953-07-18
Abstract: 767,504. Laminated springs. BROCKHOUSE & CO., Ltd., J. Aug. 16, 1954 [July 18, 1953], No. 19966/53. Class 108(3). The invention relates to a laminated spring assembly of the type in which an eye 14 integral with one of the laminations 13, is adapted to engage a bush &c. (not shown) on the member to which the spring is secured, a reinforcing clip 10 being associated with the eye. According to the invention, each free end of the clip 10 is secured in position by means of respective saddle clips 30, 31, spaced apart axially of the spring, one free end of the reinforcing clip underlying both the main (13) and next adjacent (18) spring leaves. One free end 11 of the clip 10 is upturned at 34 to engage a transverse bolt 35 of the clip 30 which is riveted at 33 to a lamination 22.
Patent GB-935357-A (GB)
Title: A process for packaging liquefiable material in flexible containers
Inventor: DOSCH RUDOLPH
IPC: B65B63/08
Filed: 1962-05-25
Abstract: 935,357. Packaging. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. May 25, 1962, No. 20194/62. Class 94(1). Hot molten material such as bitumen is poured into a flexible container while the latter is supported in a water bath, the container being sealed, and removed from the bath when its contents are solidified by cooling. In one embodiment of filling apparatus, a plastics bag 1, formed by clamping the base of a tube, is supported about a nozzle 3 by counterweight means 5 above the water bath. As the bag is filled so it descends until, when filling is complete, its upper end is released and clamped and it is moved along in the bath for cooling. Subsequently the ends are heat-sealed. In another embodiment (not shown) a plastics foil tube is continuously formed about the nozzle and increments of material enclosed by transverse seals. The joined packages are drawn through the water bath by means not described. Examples of suitable bag materials are polyvinyl-chloride and polypropylene. Mention is made of known process in which bitumen is packaged in polyvinyl alcohol film which has the advantage of being readily removable by immersing the package in water.
Patent GB-533430-A (GB)
Title: Improvements in or relating to machines for making tiles
IPC: B28B11/16
Filed: 1939-07-12
Abstract: 533,430. Moulding tiles. HARTLEY, A. C. July 12, 1939, No. 20312. [Class 87 (ii)] Tiles of concrete or other plastic material having chamfered and jagged edges in simulation of hand-made slates are formed by imparting such chamfered and jagged surfaces to one or more edges by mechanical means. As shown, an extruded stream of the plastic material is received on pallets a and traversed along guides b past a cutting device d, oscillated from an eccentric f, carrying knives h to sever the stream and also provided with presser members chamfered and roughened to form the desired edges and with nail hole punches j. Each pallet accommodates a pair of tiles which are severed by rotary cutters k. In a modification the side edges are formed by embossed or built-up sides contiguous to the knives k.
Patent GB-1338953-A (GB)
Title: Donductive polymeric elements and methods of making same
IPC: H01B1/24
Filed: 1971-04-19
Abstract: 1338953 Electrically conductive polymer compositions TEXAS INSTRUMENTS Inc 19 April 1971 [27 Jan 1970] 20401/71 Heading C3P The invention comprises an electrically conductive polymeric element having a positive temperature coefficient of resistance, the element comprising a crystalline polymer having a narrow molecular weight distribution, filler material including conductive particles dispersed therein and means to make electrical contact to the element. The term "molecular weight distribution" means the ratio of the weight average molecular weight to the number average molecular weight and the word "narrow" denotes the range 2 : 1 to 6 : 1. The conductive particles which do not oxidise at temperatures of 350 F. or less include tin, silver and gold and preferably carbon black in amounts of 20 to 35% by weight of carbon black and polymer. The polymers are preferably polyolefins, e.g. polyethylene and copolymers thereof and polypropylene and the total filler content does not exceed 50% by weight of the element mixture. The elements may also contain stabilizing agents, e.g. an alkylated polyhydroxyphenol, phenylbetanaphthylamine or dialkylphenol sulphide, flame retarding agents, e.g. antimony oxide or perchloropentacyclodecane and antimony oxide. The elements are prepared by mixing the polymer and filler components at temperatures not exceeding 350 F. preferably in the range 250-350 F. and not for more than 5 minutes when the temperature exceeds 200 F., subjecting the mix to a shearing action between surfaces held at different temperatures, e.g. at a differential of 5 F., and then moulding in a mould preheated to 300 F. The element may then be subjected to electroless nickel plating and annealing of the coated element.
Patent GB-811292-A (GB)
Title: Improvements in or relating to milking apparatus
IPC: A01J5/14
Filed: 1954-07-13
Abstract: 811,292. Pulsators. SIMPLEX DAIRY EQUIPMENT CO. Ltd., and BROWN, R. P. July, 12 1955 [July 13, 1954], No. 20434/54. Class 84. An electro-magnetic pulsator comprises a hollow core 21 with an energising winding 22 in a sealed housing 26. A pivoted armature 35 is arranged alternately to close an air intake through a filter 34 and core 21, and the mouth of a tube 19<SP>1</SP> which is under constant vacuum via a stall cock fitting 28. The interior of the housing 26 communicates via a bore 31 with a connector 32 for the pulsating vacuum line of the teat cup assembly. The constant vacuum line of the teat cup assembly is fastened to connector 30. Specification 794,182 (Group XXXV] is referred to.
Patent GB-1215901-A (GB)
Title: Laser
IPC: H01S3/036
Filed: 1969-04-22
Abstract: 1,215,901. Lasers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 April, 1969 [25 April, 1968], No. 20476/69. Heading H1C. In an infra-red gas laser having a discharge tube 1 more than one and a half metres long, cataphoretic segregation of the water vapour content of the gaseous active medium is prevented by provision of a tube 11 between the ends of the discharge tube 1, the mean inside diameter of tube 11 being less than one third that of tube 1. The active medium is a mixture of CO 2 , He, N 2  and water vapour, and the latter may be formed in situ from hydrogen and any traces of oxygen present. The discharge tube 1 has a concave quartz seal 6 coated with a gold reflector 7. A flat germanium sheet 8 acts as a partially transmitting mirror at the other end of the tube 1. A zeolite rod 10 saturated with water acts as a water replenisher at the anode end of tube 1, the anode and cathode being formed respectively from platinum cylinders 4, 5 in tubes 2, 3.
Patent GB-1100323-A (GB)
Title: Improvements in or relating to servomotor apparatus
IPC: G05D3/14
Filed: 1965-05-14
Abstract: 1,100,323. Control of A.C. motors. FERNSEH G.m.b.H. 14 May, 1965 [16 May, 1964(2)], No. 20502/65. Heading H2J. [Also in Division G1] The reference winding 14 of servomotor 3 is not energized until the control voltage applied to winding 13 has reached a threshold level. The motor is used for follow-up control involving a bridge circuit comprising potentiometers 6, 7. When the control voltage exceeds a higher threshold level, the amplitudes of transient and ripple components transmitted over capacitor 26 are sufficient to render transistor 23 conductive. A switching signal is developed at point 35 whereby rectifier 36 becomes conductive, capacitors 15, 16 are discharged, and diodes 37, 38 pass current to motor winding 14. If the control voltage exceeds a lower threshold value only, transistor 23 is conductive for a brief period, the winding 14 being automatically switched-off after a short interval. When the control voltage decreases from a value above the higher threshold level, de-energization of winding 14 is delayed in accordance with the values of capacitors 26, 29 and resistors 37, 30.
Patent GB-1128255-A (GB)
Title: Nuclear reactor
Inventor: LEROY CLAUDE
IPC: F22B1/18
Filed: 1966-05-09
Abstract: 1,128,255. Reactors. INDATOM. 9 May, 1966 [14 May, 1965; 26 April, 1966], No. 20517/66. Heading G6C. A gas-cooled. reactor chaving a core (2) disposed above a heat exchanger (3) in a concrete pressure vessel (1) has a shielding floor (4) carrying the core supported by a cylindrical skirt 5 surrounding the heat exchanger (Fig. 1, not shown). A cylindrical shell 8 co-axial with the skirt 5 defines the inner surface of the space receiving the heat exchanger. The heat exchanger comprises a plurality of interconnected hairpin shaped coils 7 extending in a vertical direction and arranged in three groups 9 separated by spaces 10,11. In plan-view (Fig. 3,not shown) the coils have an arcuate profile to form circle involutes (12) extending between the shell 8 and. skirt 5 thereby -economically filling the entire annular space between the shell and skirt. In the direction of descending . gas flow the heat exchanger comprises in sequence superheater, evaporator and economizer sections, the feed water entering at 22 and the superheated steam leaving through pipes having expansion, bends 26 situated in the shell 8. The spaces 10, 11 are.provided to facilitate assembly and repair and access to the heat exchanger is obtained by a ladder 36, gangways 37 and manholes 38, 39 provided in the shell 8. The .coils 7 are supported by hangers 30 carried by beams 32. In a modification (Fig. 4, not. shown) a portion of the heat exchanger serves for resuperheating steam returned from the first stage of a turbine. In another modification (Fig. 5, not shown) the heat exchanger is divided into'high and low pressure sections. In a further modification (Fig. 6, not shown) the shell 8 is extended upwardly and supports the floor 4.
Patent GB-810079-A (GB)
Title: Process for the preparation of cable-impregnating oils
IPC: C10G17/09
Filed: 1957-06-28
Abstract: Cable-impregnating oils are prepared from a mineral oil fraction having a viscosity of at least 20 DEG  E. at 50 DEG  C. and an aromatic content of at least 50 per cent by weight, by (1) treating with strong sulphuric acid (i.e. at least 70 per cent), oleum or SO3, (2) neutralizing with a basic compound, (3) distilling, and (4) treating with a solid adsorbent. Alternatively, a fraction comprising a partial fraction having the above-described viscosity and aromatic content may be treated as in steps (1) and (2) and then fractionally distilled to separate the partial fraction which is then treated with the adsorbents.  The mineral oil fraction may be a distillate or residue fraction from crude oil, e.g. a naphthenic or asphaltic crude oil.  If the oil is viscous, the acid treatment may be carried out at an elevated temperature, e.g. 60-90 DEG  C., and/or with the addition of a diluent, e.g. gas oil, from 5-30 per cent acid may be used.  The acidification may be carried out in one or more batches and intermittently or continuously, and after treatment the acid sludge is removed.  Basic compounds referred to are sodium and calcium hydroxides; the compounds may be used in solid form or as a solution or suspension in, e.g., oil, water, and/or alcohol.  Between 5 and 40 per cent of the compound may be used.  The distillation is carried out at reduced pressure to prevent decomposition of the oils, and may be effected either after or simultaneously with the neutralization. Adsorbents referred to are bleaching earth, bauxite and clays, e.g. "Filtrol" (Registered Trade Mark), "Tonsil" and "Floridin"; 1-15 per cent of the adsorbent may be used, and the temperature of adsorbent treatment may be 70-130 DEG  C.  The oil fractions may first be extracted with a selective solvent for aromatics, e.g. liquid SO2 or furfural.  To the cable-impregnating oils thus prepared there may be added minor proportions of antioxidants and/or metal deactivators, e.g. phenols, amines and condensation products of amines with aldehydes; examples given are 2,4-dimethyl - 6 - tert. - butyl phenol, phenyl - a  - naphthylamine, phenyl - b  - naphthylamine, o-phenylene diamine, N,N1-disalicylal-ethylene diamine and N,N1 - disalicylal - phenylene diamine.  Less than 1 per cent of the additives may be used.
Patent GB-571515-A (GB)
Title: Apparatus for drying air or gases
IPC: B05B7/24
Filed: 1943-12-08
Abstract: 571,515. Drying air &c. LUMB, C. F. Dec. 8, 1943, Nos. 20531/43 and 15826/44. [Class 123 (iii)] Apparatus for drying air, &c., comprises a vessel 1, preferably cylindrical, provided with air inlet and outlet pipes 2, 3 and locating a deflecting surface 5 on to which the air stream is directed and which causes moisture to be projected outwardly against the inner wall of said vessel, a drain cock 14 being fitted at the bottom of the latter. The surface 5 may be constituted by the conical surface of a plug 5a secured to one end of a sleeve 4 which surrounds the outlet pipe 3, an extension 4a on the other end of the sleeve 4, which is provided with axial slots 6 for the passage of air, being located on said pipe 3 by a nut 12, preferably with the interposition of a perforated disc 13. In a modification, a second sleeve is disposed between the sleeve 4 and the vessel 1 in line with the periphery of the plug 5a, and the wall of the outlet pipe, adjacent its mouth, may be perforated.
Patent GB-581341-A (GB)
Title: Improvements relating to the electrolytic protection of metal surfaces against corrosion
IPC: C23F13/02
Filed: 1943-12-08
Abstract: 581,341. Preventing corrosion. ARNOLD, J. C. (Standard Oil Development Co.). Dec. 8, 1943, No. 20544. [Class 123 (i)] [Also in Group XXXVI] Metal surfaces are protected against corrosion by employing as anode a flexible sheet, which has a surface area between 1 per cent. and 3 per cent. of that of the surface to be cathodically protected and is of higher negative solution potential than that of the protected metal. Iron oil tanks of tankers are protected by sheet zinc, but magnesium and aluminium are also suitable. A bundle of thin foil sheets may alternatively be employed.