baber/WOPTO huggingface dataset:
Patent GB-769855-A (GB)
Title: Device for separating dust or liquid particles from a gaseous medium
IPC: B04C5/04
Filed: 1955-06-15
Abstract: 769,855. Centrifugal separators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. June 15, 1955 [June 21, 1954], No. 17168/55. Class 23. Apparatus for separating solid or liquid particles from gas comprises a separating chamber 5, a spiral inlet duct 6 having a cross-section increasing in the direction of flow and which communicates with the chamber only at the duct end, a gas outlet 7 concentric with the chamber, and a spiral enlargement 4 at the bottom of the chamber and which merges into a tangential outlet pipe for the particles. As shown the gas is wetted in a distributer 15 before passing through the apparatus, and a water trap 13 is fitted in the particle outlet pipe. A collar 11 surmounts the outlet 7, and any dust passing through this outlet falls on to a partition 9, which may be conical, and is removed by liquid respectively, supplied and discharged by tangential pipes 8, 12.
Patent GB-595520-A (GB)
Title: Fluid pressure transmission system
IPC: B60T11/224
Filed: 1945-07-05
Abstract: 595,520. Brakes. SCHNELL, S. July 5, 1945, No. 17204. [Class 103 (i)] A fluid-pressure system, described as applied to a brake, comprises a pedal-operated mastercylinder A, brake-actuating cylinders 10 and an interposed booster unit C containing connected pistons 18, 19 working respectively in large and small cylinder bores. When the pedal is first operated, the resultant pressure is communicated through the passages 24, 31, space 16 and pipe 11 to the brake cylinders. The pistons 18, 19 do not move as the area of the piston 19 is greater than the area of the piston 18 within the sealing ring 25, and the pressure tends to keep the piston 18 seated on the ring 25. When the master cylinder pressure rises sufficiently, it lifts the valve 47 and admits the pressure through the passage 42 to the outside of the ring 25, and at the same time, through the passage 40 to the space 41. This moves a piston 30 to abut on a valve seat 34 which closes the passage 31. Continued actuation of the pedal at the high pressure, therefore, moves the piston 18, 19 to the left bv the master cylinder pressure acting on the whole of the area of the piston 18, the pressure transmitted to the brake cylinders being correspondingly higher according to the relative areas of the pistons 19, 18. A constriction 45 in the passage 44 leading to the valve 47 prevents a sudden initial actuation of the pedal from opening the valve and bringing the booster immediately into operation.
Patent GB-1422285-A (GB)
Title: Exposure control mechanism
IPC: G03B9/42
Filed: 1973-04-10
Abstract: 1422285 Exposure control mechanism POLAROID CORP 10 April 1973 [21 April 1972] 17213/73 Addition 1417044 Heading G2A An exposure control mechanism comprises aperture blocking means e.g. blades 24, 26 interconnected by a walking beam 36 and having teardrop shaped openings 32, 34; movable by a belt drive assembly between a terminal position blocking the passage of light through an exposure aperture and positions unblocking the passage of light, Fig. 4; the assembly comprises a belt 124 wound around a first belt winding surface 128 connected to the walking beam 36 and around a second belt winding surface 122 which is connected to an electromagnetic actuator 134; surfaces 128 and 122 are biased by first and second springs 80 and 106 respectively when the actuator is de-energized, Fig. 7 the second spring 106 rotates surface 122 against the bias of the first spring 80 so that surface 128 rotates to move the blades to their light unblocking position, energization of the actuator rotates surface 122 against the bias of the second spring introducing slack into belt 124 and allowing surface 128 to rotate under the bias of spring 80 to move the blades to their light blocking position. Spring 106 has a greater bias than spring 80. The drum is attached to the actuator 134 by an extension 136 of the belt and the mechanism may be calibrated by varying the effective length of the belt using a screw 158 which bears on the belt and is mounted on a collar 160 on the walking beam. In an alternative embodiment only one shutter blade is provided.
Patent GB-404545-A (GB)
Title: Improvements in and relating to weaving looms for continuous weaving in which the weft is inserted by means of pirnless shuttles
IPC: D03J5/00
Filed: 1933-06-16
Abstract: 404,545. Looms with stationary weft supplies. DEWAS, R., 120, Boulevard de St. Quentin, Amiens, Somme, France. June 16, 1933, No. 17223. Convention date, June 23, 1932. Addition to 403,292. [Class 142 (ii).] The dummy shuttle described in the parent Specification is modified to permit of weft being inserted alternately from each side of the loom, a weft engaging clamp comprising two straight flexible prongs 5, Fig. 2, which may be pressed together by auxiliary springs 6, being mounted in the central groove 4. Weft is presented to the shuttle and released therefrom by a thread guide 8, Fig. 9, and a blade 9 carried by a cam operated member 10, one of which is provided at each side of the loom. Alternatively the shuttle may be provided with two spring clamps 5<1>, 5<11>, Fig. 13, and 15, disposed in independent grooves 21, 31, the weft presenting eyelets and weft releasing blades being fixedly mounted on each side of the loom. Fabrics with or without selvedges are formed by providing a cutting blade on the shuttle or on the loom frame. The shuttle may be propelled across the loom by means of electro-magnets.
Patent GB-674496-A (GB)
Title: Process for crystallising urea
IPC: C07C273/16
Filed: 1950-07-11
Abstract: Urea is crystallized from aqueous solutions in the presence of not more than about 1 per cent based on the weight of the urea of glyoxal-urea condensation products, which term also includes condensation products of glyoxal-urea condensates with formaldehyde e.g. tetramethylol-acetylene-diurea and substances obtained by heating glyoxol-urea condensates.  In examples (1) acetylene-diurea is added to a 65 per cent aqpeous solution of urea at 60 DEG C; the solution is cooled and the crystals obtained separated from the mother liquor and dried, (2) acetylene-diurea is heated to 250 DEG C and added to a 65 DEG C. aqueous urea solution at 60 per cent; active charcoal is added and the solution crystallised; (3) acetylene-durea is added to a urea melt containing a few per cent of water and the melt sprayed by means of an air current.  Alternatively a glyoxol urea condensate may be added to a urea solution which is first concentrated to a melt and then solidified by spraying.
Patent GB-227373-A (GB)
Title: Improvements relating to the manufacture of hose pipes of rubber or the like
IPC: B29D23/00
Filed: 1924-07-19
Abstract: 227,373. Kort, K. July 19, 1924. Hose pipes.-Hose, pipes composed of layers of elastic material and fabric are formed by building the pipe around a hollow inflatable mandrel adapted to contract on deflation so as to be easily removed from the tube. In order to limit the expansion of the mandrel, a canvas jacket is supplied to surround the mandrel prior to the winding.
Patent GB-693570-A (GB)
Title: Improvements in or relating to insulating guard plates for live electric terminals or contacts
IPC: H01H85/25
Filed: 1950-07-11
Abstract: 693,570. Switch cases. COOPER, H. C., and MEK-ELEK ENGINEERING, Ltd. Oct. 11, 1951 [July 11, 1950], No. 17380/50. Class 38 (v) An insulating plate 30 shielding a pair of contact blades 11 and having a pair of holes 31 to permit the passage therethrough of conducting members to engage the blades 11, has the leakage path between the holes 31 increased by forming the plate with a slot 32 extending transversely to a line intersecting the holes. The arrangement may be applied to a switch box in which the contacts 11 are mounted by screws 19 on platforms 18 of an insulating block 15 secured to the box base 14, and are engaged by contacts (not shown) mounted on the box lid, the arrangement being suitable for the transfoimer box disclosed in Specification 664,073. The block 15 has an upstanding wall 10 situated between the contacts 11 and having an elongated boss 33 extending through the slot 32. The plate 30 is secured at one end on a boss 38 by a screw 37 and at the other end rests on projections 34 on an upstanding end wall 17 of the block 15 and is located by a peg 54 on the box wall. A metal angle member 55 may protect one side of the block 15, alternatively, the plate 30 and member 55 may be integral and of insulating material. In a modification Fig. 6, (not shown) the underside of the plate 30 abuts the top of the wall 10. According to Fig. 7, (not shown) the boss 33 is dispensed with, and a recess may be formed in the top of the wall in register with the slot 32, Fig. 8, (not shown). An alternative mounting for the plate 30, Fig. 9 (not shown) comprises a nosepiece on the boss 33 which overlies the plate. Another mounting, Fig. 10 (not shown), comprises a clip secured to the block 15 and having a bent end which overlies the edge of the plate 30 at the opposite end to the screw 37.
Patent GB-873540-A (GB)
Title: Improvements in or relating to floating blanket
IPC: B65D88/34
Filed: 1960-05-17
Abstract: 873,540. Covers for tanks. STANDARD OIL CO. May 17, 1960 [May 22, 1959], No. 17403/60. Class 69 (1). A blanket arranged to float on a liquid in a tank to minimize evaporation and made of flexible material so that it may be inserted into the tank through a manhole 5 has an elongated sleeve 30 with at least one opening for insertion of an elongated stiffener 41 secured by heat sealing or adhesive to one face of the blanket near its outer edge. In the preferred embodiment, sectors 23 of a closed cell type of foamed polystyrene are secured between sheets 20, 21 of polyvinyl chloride welded together along radii between the sectors and around their peripheries. The sleeve 30 may be similar synthetic material and preferably has between one and four openings for insertion of solid or tubular stiffeners of metal or synthetic material. A loop 50 and a cord 51 enable the blanket to be raised for insertion of the stiffeners or for inspection.
Patent GB-356261-A (GB)
Title: Improvements in or relating to electrostatic sound-reproducing instruments
IPC: H04R19/02
Filed: 1930-06-05
Abstract: 356,261. Circuits for electrostatic instruments. VOGT, H., 17, Genthinerstrasse, Berlin. June 5, 1930, No. 17470. Convention date, June 6, 1929. [Class 40 (iv).] The biassing potential for an electrostatic loud-speaker is obtained from the input signal currents by connecting a high-resistance rectifier 15 in shunt across the instrument and the secondary of the input transformer 11. With an instrument of the type having a central diaphragm between the fixed electrodes, Fig. 2, the rectifier 19 is connected in series with a condenser 20 across the fixed electrodes 16, 17 and the mid-point of this shunt is connected to the diaphragm 18 through a high resistance 22.
Patent GB-1406095-A (GB)
Title: Detergent compositions
IPC: C11D1/83
Filed: 1972-08-29
Abstract: 1406095 Detergent compositions COLGATEPALMOLIVE CO 29 Aug 1972 [1 Sept 1971 12 Nov 1971 22 May 1972] 17560/75 Divided out of 1406094 Heading C5D A detergent composition comprises (A) a water-soluble sulphate detergent having a long aliphatic chain and an ether linkage in which an oxygen of the sulphate group and the oxygen of the ether linkage are directly attached to adjacent carbon atoms, (B) sodium silicate, (C) sodium carbonate and (D) water-soluble antiredeposition polymer; the ratio of (A) : (B) being from 1 : 4 to 1 : 0À7; the ratio of (A) : (C) being from 1 : 4 to 1 : 0À7; the ratio of(B) : (C) being from 2À5 : 1 to 1 : 2À5; the ratio of (A): (D) being from 40 : 1 to 5 : 1; the ratio of (A)+(C) to (B) being from 5 : 3 to 3 : 5; and the ratio of (B) + (C) to (A) being from 4 : 1 to 2 :1. (A) is an alkyl ethoxymer sulphate detergent or a methoxy alkyl sulphate detergent or a mixture thereof. The sulphate (A) may be replaced in part by the alkylbenzene sulphonate detergent of Specification 1,404,161 or by the olefin sulphonate or paraffin sulphonate of Specification 1,404,162 provided the aforesaid relationships between the sulphate detergent (A) and the other ingredients (B), (C) and (D) are still satisfied. The detergent (A) may be in the form of an alkali metal, NH 4 , C 1 -C 4  alkylamine or C 1 -C 4  alkanolamine salt. Component (D) is preferably sodium carboxymethylcellulose. Optional ingredients are (E) ethylene oxide or ethylene oxide-propylene oxide condensates of C 10 -C 16  alkanols; (F) bleach, e.g. sodium perborate; (G) organic builder, e.g. trisodium hypochlorite; (H) dyestuffs and others, e.g. optical brightening agents.
Patent GB-111548-A (GB)
Title: Improvements in connection with Tanks for the Purification of Sewage.
Inventor: NAYLOR GEORGE WILFRED
IPC: C02F3/20
Filed: 1916-12-07
Abstract: 111,548. Naylor, G. W., and Naylor, J. F. Dec. 7, 1916. Aerating.-In sewage-purifying tanks provided at or near the bottom with air-diffusing tubes, the tubes are so constructed as to discharge air mainly from the sides. In the form shown in Fig. 2, a non-porous tube a is arranged throughout its length in a casing d of canvas, gauze, or the like which is stretched by screws e. The tube is formed at the bottom with perforations b and is provided with a jacket c of cloth or gauze for equalizing the pressure. The screws may be replaced by templets which may consist of walls formed with apertures to support the sides of the casing. Or the templets may consist of spring. metal members k which may be arranged inside or outside the casing as shown in Figs. 3 and 5 respectively. To reduce the discharge from the top, the tubes may be provided with a layer of cloth m which may be held by spring clips n. The diffuser shown in Fig. 7 consists of a tube h of earthenware or the like which is rendered impervious at the top by a coating of paint.
Patent GB-455103-A (GB)
Title: Improvements in or relating to looped tube steam generators, water or air heaters
IPC: F22B13/02
Filed: 1935-06-18
Abstract: 455,103. Water-tube steam boilers ; air heaters ; soot blowers. CLARKSON THIMBLE TUBE BOILER CO., Ltd., and FOUNTAIN, H. J., Australia House, Strand, London. June 18, 1935, No. 17569. [Classes 64 (i) and 123 (ii)] [See also Group XXVIII] In steam boilers or water heaters having an annular water space from which rows of loop tubes project into a central heating chamber, means comprising baffles or short connecting pipes are provided in the water space for ensuring a positive circulation through all the tube rows in succession. In a steam boiler having an annular water space 3 and loop tubes 4 projecting into a central passage 5 traversed by heating gases from an upper inlet 6 to an outlet 7, dished annuli 8 are placed over the inner shell 2 and are spaced by their rims 9 to lie between the inlet and outlet ends of each horizontal row of tubes. Feedwater is introduced through an inlet 10 and passes successively through the tube rows steam being taken off through an outlet 12. A soot blower 13 with orifices 14 is mounted on a rotatable cylindrical baffle 15 supported on a pivot pin 16. The apparatus may be used as an air heater by pumping hot water through the tubes while the air to be heated is passed through the central passage.
Patent GB-1344525-A (GB)
Title: Photographic silver halide materials containing a beta-disulphone
IPC: G03C1/42
Filed: 1971-05-27
Abstract: 1344525 Photographic silver halide material containing a beta-disulphone EASTMAN KODAK CO 27 May 1971 [1 June 1970] 17622/71 Heading G2C A photographic silver halide material contains a #-disulphone in a layer of the material in an amount sufficient to stabilize it after exposure and development, on activation by an alkali. The #-disulphone is preferably a 1, 1-bis (sulphonyl) alkane and may be bis (methyl- or ethyl-sulphonyl methane. Others are listed. The material preferably contains 2-10 moles of #-disulphone per mole of silver halide, and may contain a silver halide developing agent. The #-disulphones do not desensitize a silver halide emulsion or stabilize the emulsion prior to development but on alkaline activation they act as effective stabilizers
Patent GB-1269811-A (GB)
Title: Improved dispensing devices for use with or including aerosol dispensing containers
Inventor: THIEL CHARLES GILBERT
IPC: A61M15/00
Filed: 1969-04-03
Abstract: 1,269,811. Pocket inhalers. RIKER LABORATORIES Inc. 3 April, 1969, No. 17636/ 69. Heading A5T. [Also in Divisions B8 and F1] In a dispensing device for inhalation therapy comprising a housing 21, Fig. 4, or 75, Fig. 10, for receiving an aerosol dispensing container 20 with a metering valve 30, a spring means for biasing the container relative to the housing may be latched in a compressed position by a latch 47, 51 or 83, 84, 85 for release by a trigger 66 or 93 to move the container and operate the metering valve. In the embodiment of Fig. 4, a hook 53 on the latch lever 51 engages a notch 54 in the latch element 47 when the two housing portions 22 and 23 are relatively moved manually to compress a pair of springs (49 and 50), Fig. 5 (not shown) mounted in the latch element, against a fixed element 48 in the housing. Air is drawn through a passage 63, an opening 62 and the spacing provided between the housing portion 23 and the container 20 by ribs 46 to the mouthpiece 45. When air is drawn to the mouthpiece the pressure differential across the bullet-shaped trigger member 66 causes it to fly upwards and hit the lever arm 60 and release the latch. The upper end of the passage 63 is closed by a rotatable plug 64 with a notch 72 which in one position, determined by a projection (70), Fig. 1 (not shown), in an arcuate groove (71) in the top of the housing portion 22, is aligned with the lever arm 60 and in another position limits lever arm movement. In the embodiment of Fig. 10, the plastic balloon or oval metal spring 76 is compressed by manually operating the push rod 80, the lever 84 moving the container 20 upwardly. The latch plate 85, connected by a lever 96 to the vane 93 mounted by resilient members 94 in the air passage from the opening 88 to the mouthpiece 45, is moved out of latching engagement with the reduced diameter portion of the push rod 80 when air is drawn through the mouthpiece.
Patent GB-1339452-A (GB)
Title: Medical data recorder
IPC: A61B5/336
Filed: 1971-05-27
Abstract: 1339452 Electromedical apparatus INSTITUTE FOR INDUSTRIAL RESEARCH & STANDARDS and J M M STIRLING 27 May 1971 [27 May 1970] 17648/71 Heading G1N Medical data is recorded by connecting a plurality of plate-type limb and at least one suction cup electrode electrodes, via a selector switch 4 and amplifying and modulating circuitry 5, 6, to a magnetic tape recorder 7. As shown, the twelve e.c.g. signals may be sequentially recorded utilizing four plate-type limb electrodes 1 and a suction cup electrode 2 by connecting various electrodes in combination to the amplifier via the switch 4. A calibration circuit 9 is provided and a microphone 8 is provided for recording speech if desired. The switch may be a multipole wafer switch.
Patent GB-958885-A (GB)
Title: Control means for incandescent lighting
Inventor: DURRELL COLIN GEORGE
IPC: H01F29/02
Filed: 1963-05-06
Abstract: 958,885. Transformers. M. A. DURRELL. May 6, 1963, No. 17742/63. Heading H1T. [Also in Division H2] A single phase auto-transformer 8, for dimming control of incandescent lamps, through a selector switch 9 co-operating with tappings on the transformer winding, has the cross-sectional area of its winding wipe varying throughout its length. The area varies from a maximum at tap 1 to a minimum at tap 12. The selector switch 9 and/or the single- or two-way switch 3 may be disposed remote from the transformer. A neon indicator lamp may be fitted. Several rotary (or linear) multi-position switches may be provided. The transformer casing 1 may be suitable for wall mounting and may be provided with earthing connections.
Patent GB-1520353-A (GB)
Title: Cable grip
IPC: F16G11/00
Filed: 1976-04-30
Abstract: 1520353 Cable grip HARVEY HUBBELL INC 30 April 1976 [12 May 1975] 17752/76 Heading E2B A gripping device 6, Fig. 1, for a cable 8, has a body 10 composed of interlocked or interwoven wire strands to form an open mesh structure, and has branches 11 each pair of which is connected by a "U"-shaped metal tube 12 to form a pulling eye 14. The individual strands of the body 10 are brought together at shoulder areas 16, Fig. 2, of the device 6 and are held in parallel spaced relation at the shoulder areas by an equaliser device 18, Fig.3. The latter comprises coils 20, 22 and 24 joined together by helical-shaped portions 26 and 28 integral with the coils. Strand 30, which extends through coil 20 and extends through coils 22 and 24, is a strand of a right-hand turn of the body 10 whereas strand 32 is a strand of a left-hand turn of the body 10. Similarly strand 34 is a right-hand strand and strand 36 is a left-hand strand and both enter coil 22, and extend through the coil 24, also strand 38 is a right-hand strand and strand 40 is a left-hand strand and both enter through coil 24. The strand bundle 41 may be held by a clamp 50. In modifications the coils can be deformed as shown in Figs. 4 and 5 after the strands have been threaded therethrough. In use the device 6 is compressed axially so as to increase its diameter, the cable is located therein and force is applied by pulling the eye 14 so as to cause elongation of the device and effect gripping of the cable.
Patent GB-582697-A (GB)
Title: Improvements in or relating to knicker and like undergarments
IPC: A41B9/04
Filed: 1944-09-18
Abstract: 582,697. Knicker undergarments; pockets. LITTLER, W. A. Sept. 18, 1944, No. 17780. [Class 141] A knicker undergarment is provided with an inset side pocket by sewing pocket pieces 4 to the side edges f of the front and rear portions 1<1> of one half of the knickers, sewing the curved edges of the pocket pieces together, and connecting the side edges of the portions 1<1> above and below the pocket. The knickers may be cut from tubular or flat knitted fabric. Preferably, the knicker portions are cut from doubledfabric with a fold at the side seams, the fold' of one portion being cut before the pocket -portions are secured to the cut edges.
Patent GB-861450-A (GB)
Title: 11-cis isomers of the vitamin a series
IPC: A61K31/59
Filed: 1957-06-04
Abstract: The invention comprises 11,13-di-cis-Vitamin A and its esters (especially the acetate), and a method of synthesizing 11-cis-isomers of Vitamin A by forming the Grignard reagent of cis- or trans-3-methylpent-3-en-1-yn-5-ol, condensing this with an aldehyde of the formula <FORM:0861450/IV (b)/1> hydrolysing the product to a glycol of the formula <FORM:0861450/IV (b)/2> monoacetylating and dehydrating this glycol, hydrolysing the product and reducing the triple bond to a cis double bond.  The final product may then be esterified (e.g. acetylated with acetic anhydride and pyridine).  The two isomeric compounds of the formula <FORM:0861450/IV (b)/3> obtained by the hydrolysis step preceding the reduction of the triple bond are characterized as their anthraquinone-b -carboxylic acid esters.  The Grignard compound of trans-3-methylpent-3-en-1-yn-5-ol, having the formula <FORM:0861450/IV (b)/4> is prepared by reacting trans-3-methylpent-3-en-1-yn-5-ol with two molecular proportions of ethyl magnesium bromide in ether and tetrahydrofuran.