baber/WOPTO huggingface dataset:
Patent GB-728494-A (GB)
Title: Improvements relating to dishwashing machines
IPC: A47L15/06
Filed: 1953-11-26
Abstract: 728,494. Dish-washing machines. GENERAL ELECTRIC CO. Nov. 26, 1953 [Nov. 28, 1952], No. 32878/53. Class 138 (1).  A dish-washing machine comprises a tub 1, Fig. 1, for containing the articles to be washed in a quantity of liquid, an impeller 2 driven by a motor 4, the impeller being disposed adjacent a wall of the tub, a drainage opening 14 in the wall about the impeller axis, a cylindrical valve body 15 associated with the impeller for rotation therewith, the valve body extending from the impeller to encircle the opening 14 in close proximity with said wall and having about its circumference a plurality of openings 16, Fig. 2, disposed adjacent said wall, and a plurality of flapper valves 17 pivotally carried by the valve body 15 interiorly thereof for co-operation each into a valve opening 16, the flapper valves 17 being biased away from their associated openings to permit flow of liquid therethrough to the opening 14 when the impeller is at rest, but responding to centrifugal forces when the im. peller is rotated to move against the valve body 15 to close said openings 16. The valve body 15 is frictionally held in the inside of the hub of the impeller 2 and the flapper valves 17 are moulded integrally with the body 15 which is composed of an elastomeric material. As shown in Figs. 1 and 2 the openings 16 are rectangular and are-also open adjacent the bottom wall of the tub 1. The flapper valves .17 are longer than the openings 16, to overlap the latter, and to prevent them passing through the openings. In a modification, Fig. 4, the flapper valves 17.1 are pivotal about horizontal axes and the walls of the openings 16.1 and the edges of the valves are bevelled in such a manner as to prevent the valves 17.1 passing through the openings 16.1. The dish-washer is of the type having a front opening with a door pivotal about its lower horizontal edge, and wherein a timed cycle of operations is performed. Specification 557,034 is referred to.
Patent GB-358758-A (GB)
Title: Improvements in or relating to direction finders incorporating electron discharge devices
IPC: G01C17/32
Filed: 1930-11-01
Abstract: 358,758. Magnetic tests. PERRYMAN ELECTRIC CO., Inc., 4901, Hudson Boulevard, North Bergen, New Jersey, U.S.A.-(Assignees of Schwerin, P. ; 47, West Pierrepont Avenue, Rutherford, New Jersey, U.S.A.) Nov. 1, 1930, No. 32922. Convention date, Nov. 2, 1929. [Class 37.] A direction finder for aircraft, ships or other vehicles consists of a thermionic valve having a cathode 20, a main anode 18, two semicylindrical auxiliary anodes 15, 16 and means such as polepieces 22 of material, for example permalloy, of high magnetic permeability and low permanent magnetism, for diverting lines of magnetic force due to the earth's magnetic field across the main electron stream so as to divert it to one or other of the auxiliary anodes. The anode 18 is connected through a galvanometer G and a battery B with the cathode, and a galvanometer G<1> is connected across the auxiliary anodes. The polepieces are preferably mounted parallel with the centre line of the aircraft, so that when travelling due west or east, the galvanometer G has a maximum and the galvanometer G<1> a minimum reading; when travelling due north or south, the galvanometer G has a minimum and the galvanometer G<1> a maximum reading.
Patent GB-763155-A (GB)
Title: Process for the preparation of meta-diisopropylbenzene and isophthalic acid
IPC: C07C2/70
Filed: 1954-11-15
Abstract: Meta-diisopropylbenzene of high purity which can be directly oxidized to isophthalic acid is obtained by reacting benzene with propylene in the presence of an acid reacting alkylation catalyst, the ratio of total propyl reactant in the reaction step being in the range of 1.6 to 2.5 mols. per mol. of benzene, to produce a mixture containing the isomeric diisopropyl benzenes together with mono - isopropylbenzene and higher poly-isopropylbenzenes, then separating the diisopropyl benzene therefrom, and separating the meta-diisopropylbenzene from this fraction, and then recycling the mono- and higher poly-iso-propyl benzenes to the reaction step.  The acid reacting catalyst may be aluminium chloride, sulphuric acid, phosphoric acid, hydrogen fluoride or boron trifluoride and the reaction temperature 50-110 DEG  C. in the case of aluminium chloride.  The reaction time is preferably 0.5 to 4.0 hours.  The meta-diisopropylbenzene may then be oxidized to isophthalic acid using chromic acid, and using as catalyst the oxygen-containing compounds, especially the acetates and naphthenates of lead, manganese, iron, nickel, cobalt, chromium, vanadium, copper and mercury.  A solvent such as acetic, propionic, butyric, pentanoic, isobutyric, phenyl acetic or beta-ethoxy acetic acid, and a peroxide such as benzoyl peroxide, perbenzoic acid, peracetic acid, acetaldehyde and aldehydes with up to 5 carbon atoms in the molecule, acetone, diethyl ether and ethers containing 5-10 carbon atoms in the molecule, hexene, cyclohexene and olefines containing up to 12 carbon atoms and inorganic peroxides.
Patent GB-363465-A (GB)
Title: Improvements in or relating to arched roofs
IPC: E04B7/08
Filed: 1930-11-03
Abstract: 363,465. Roofs. BRODA, J., 11, Ul Koszarowa, Torun, Poland. Nov. 3, 1930, No. 33018. [Class 20 (iv).] A thin arched roof covering 1 is rigidly secured tc abutment beams 3 carried bv the walls or by pillars, and is supported by purlins 5 carried by trusses 6. In Fig. 2, curved wooden boards 1 are let into the side beams 3, and the trusses 6 may be wood or iron. Fig. 4 shows a reinforced concrete roof shell integral with the concrete abutments 12 and trusses 13 ; the purlins may be concrete ribs 5 or iron bars 14.
Patent GB-1273655-A (GB)
Title: Improvements in and relating to vehicle suspension systems
Inventor: GROSSEAU A
IPC: B60G11/18
Filed: 1970-07-08
Abstract: 1,273,655. Preventing lateral canting; independent front suspensions. SOC. ANON AUTOMOBILES CITROEN. 8 July, 1970 [16 July, 1969; 14 May, 1970], No. 33067/60. Heading B7D. In a front suspension comprising torsion bars 7 connected to respective lower transverse suspension links 4, a laminar anti-roll spring 9 is secured at its ends to the torsion bars 7 and lies in the common plane containing the torsion bars 7. Resilient bushings 10 connect the ends of the anti-roll spring 9 to the body structure 3. As shown the anti-roll spring 9 comprises a single laminar element which is connected to the torsion bars 7 by splines. In another embodiment the anti-roll spring is formed by two laminar elements and is held at the ends between the jaws of jaw assemblies connected to the respective torsion bars.
Patent GB-173743-A (GB)
Title: Improved means for preventing the turning of cylinder and the like locks
IPC: E05B9/08
Filed: 1921-12-09
Abstract: 173,743. Bacon, W. D. Jan 7, 1921. [Convention date]. Locks, cases for; locks, revolving-barrel.- Helates to a case for attaching cylinder locks to a door whereby turning of the lock is prevented. An annular wall 1 has radially projecting fins 2 which bite into the woodwork of the door when the device is driven into the hole for the lock. Two prongs 3, 4 extend from the annular wall and form a slot 5 which receives the spring container 9 of the lock 8 when the lock is inserted from the opposite side of the door. The lugs 12 of the lock also bear against the edges 13 of the prongs should turning be attempted.
Patent GB-1379796-A (GB)
Title: Production of ammonium polyphosphate solution
IPC: C01B25/40
Filed: 1972-07-14
Abstract: 1379796 Ammonium polyphosphate ALLIED CHEMICAL CORP 14 July 1972 [30 July 1971] 33136/72 Heading C1A Ammonium polyphosphate solns. are prepared by (a) reacting NH 3  with an aq. soln. of phosphoric acid (obtained from wet-process phosphoric acid) having a P 2 O 5  content of at least 58% by wt. at a temp. of 500-850‹ F. for at least 1 sec. to form a melt having a N/P 2 O 5  wt. ratio of 0À1-0À25 : 1 and in which 60-90% of the total P 2 O 5  is in the form of polyphosphate, and (b) adding the melt, optionally after cooling, to an aq. NH 3  soln. to form an ammonium polyphosphate soln. containing 10-13% by wt. N, 33-37% by wt. phosphate (as P 2 O 5 ), with 60-90% of the P 2 O 5  being polyphosphate. The phosphoric acid may have a P 2 O 5  content of 60-70% by wt. and be obtained either by evaporating wet-process acid having a P 2 O 5  content of 25-55 % by wt. or by mixing the wet process acid with a superphosphoric acid having a P 2 O 5  content of 70-76% by wt. Step (a) may be carried out at a pressure of 0À5-2 atmos., preferably for 5-60 sees., and heating continued until the melt contains 9-10% by wt N, 60-63% by wt. P 2 O 5  with 65-80% of the total P 2 O 5  in polymeric form.
Patent GB-753203-A (GB)
Title: Improvements relating to smoke filters for tobacco goods, more particularly as a mouthpiece for cigarettes, short cigars, cigars or the like
IPC: A24D3/10
Filed: 1954-11-16
Abstract: A tobacco smoke filter for cigars or cigarettes is porous and coheres and has a filter mass containing cellulose fibres and formed by drying of a wet strand, the fibre disposition being such that no uninterrupted longitudinal channels exist in the filter, and the formed fibre mass having a density not greater than 0,18 gm. per c.c. whilst the porosity of the filter is such that one 11 mm. long and 8 mm. in diameter would not offer more than 50 mm. water column resistance to a lengthwise air flow therethrough of 700 c.c. per minute.  Preferably, wood-wool fibres are used. Magnesium, lime, silicates, or silicones in pulverised, laminated, shred and/or fibre form may be added to loosen the fibre structure, or the fibres may be initially treated with solutions of these substances e.g. water-glass.  Fibres of cotton, wool or artificial silk, or paper shreds, may also be added, as may pulverised carbon or synthetic resin particles such as strips of crushed synthetic resin foam.  The basic fibres should preferably form at least 30 per cent, and normally form all but a few per cent, of the filter, the surface of which may be rendered smooth or slippery as by being treated with glue, gelatine, starch, wax, synthetic resins or other thermoplastics, e.g. polyethylene may be applied in powder form and subsequently heated and calendered: the filter may be pre-heated.  An adhesive paper strip may be moistened or heated and drawn, together with the filter strand, through a heated nozzle.  The filter mass may be formed by casting, as in Specification 748,095; by a continuous-rod method using a paper or glue covering; or by dispersing moist fibres in an air stream and imparting a cylindrical shape to the fibres in a channel with or without an added binder. Specification 433,048 also is referred to.
Patent GB-317685-A (GB)
Title: Process for producing colours and patterns on textile fabrics
IPC: D06C23/00
Filed: 1928-11-13
Abstract: 317,685. Goralski, M., and Mitlin, L. V. L. Nov. 13, 1928. Branding by heat. - Colourod and pattern effects are produced on textile fabrics, e.g., plush is made to resemble fur, by treating the material to the scorching action of rotatable heated members. The members preferably consist of bars 4 heated by burners 8 and arranged in rows so that a striped pattern results, each bar 4 carrying a gear 5 rotated by gears 6 fixed on a rotary shaft 7. The appearance of speckled fur may be produced by arranging the bars 4 at various heights so as not to penetrate uniformly into the material.
Patent GB-613896-A (GB)
Title: Improved manufacture of soft glass and composite articles containing said glass
IPC: B01J13/00
Filed: 1946-11-08
Abstract: 613,896. Glass. CORNING GLASS WORKS. Nov. 8, 1946, No. 33275. Convention date, March 4. Drawings to Specification. [Class 56] Soft glass, particularly for forming glass to glass or glass to metal seals, comprises on the oxide bases PbO 60-85 per cent weight (preferably within the range 70-80 per cent); Al 2 O 3  5-15; SiO 2  0-20 (preferably 0-10) and B 2 O 3  0-40 (preferably 5-20), some SiO 2  or B 2 O 3  always being present. Other constituents may be present, generally not exceeding 5 per cent, although up to 10 per cent may be present; these may be alkali metal oxides, not exceeding about 1 per cent and oxides of metals of the second periodic group and bismuth oxide. Some of the lead may be introduced as PbF 2  in amount equivalent to the specified amount of PbO; fluorine may also be introduced as aluminium or alkali metal fluoride. The glasses have an expansion of 70-90 x 10<SP>-7</SP> cm./cm./degree C. and a softening temperature below 500 C., and may be used for sealing lead glasses, barium crown glasses and soda-lime-silica glasses (e.g. comprising SiO 2  70-76 per cent; alkali metal oxide 13-18; CaO+MgO 8-14 and Al 2 O 3  1-3). Several examples are given of the formation of composite glass articles embodying parts sealed by the soft glass, including "sealed beam" headlamps, cathode-ray tubes, fluorescent lamp panels, hollow window panes and building blocks, and double-bore tubes.
Patent GB-614924-A (GB)
Title: Improvements in and relating to clutch mechanism
IPC: F16D13/04
Filed: 1945-12-11
Abstract: 614,924. Clutches. TRIGGS, W. W. (Koehring Co.). Dec. 11, 1945, No. 33450. [Class 80 (ii)] A clutch, particularly for heavy duty work such as for power cranes or shovels, comprises a spider 4 secured to a driving shaft 2 and carrying a friction band 5 for engagement with a drum 1 forming the driven member of the clutch. One end of the band 5 is anchored at 6 to the spider 4 whilst the other end 7 is adapted to be actuated through a lever 8 and a toggle linkage 9, 9 by relative rotation of a ring 13, on the tub 4a of the spider 4, which is connected by a link 16 with an arm 12a on one of the toggle links 9. This relative rotation is effected by the engagement of a brake band 23 with the ring 13, to bring the clutch into operation, by a manually-operated lever 17, Fig. 1A, and links and levers 18, 19, 20. The manual effort on lever 17 is supplemented by power from the driving shaft 2 by arranging the ring 13 to be normally driven at the same speed as the spider 4 by a countershaft 37 having gears 33, 38 meshing with gears 30 and 40 on the shaft 2 and ring 13 respectively. The gear 33 is fixed, but the gear 38 is carried in a frame 42 adapted for a small amount of transverse movement allowed by links 43, 44 and universal connections of the shaft 37 with its gears 33, 38. Thus, when the brake band 23 is manually applied, the ring 13 is retarded and the gear 38 with its frame 42 moves transversely to the clutch axis and through a screw 48 on a lug 45 of the link 44 acts on an extension 29 of the lever 20 to increase the pressure on the brake 23 and so increase the clutch engaging effort. A certain amount of lost motion is provided between the extension 29 of lever 20 and the link 44 so that initial free movement of the lever 20 on applying the band 23 is allowed. This lost motion may be taken up by the screw 48 when a purely manual application of the clutch is required without the supplementary action of the gearing and frame 42.
Patent GB-1216580-A (GB)
Title: A method of manufacturing leathers in the phase between the wet and the dry state of leather
IPC: C14B1/00
Filed: 1968-07-12
Abstract: 1,216,580. Drying leather. SVIT NARODNY PODNIK. 12 July, 1968 [15 July, 1967]. No. 33505/68. Heading F4G. [Also in Division C6] Leather 3 received from a wet treatment is conveyed between a pair of endless resilient water-permeable belts 1, 2 sequentially through first a mechanical squeezing or sammying, device comprising a pair of vibrating elements 4 the lower of which is coupled to an oscillating drive 5, to wring out part of the water content of the leather, and then through a drying chamber wherein the belts are caused to travel along a sinuous path defining a number of levels at each of which a heated radiator panel 7 is arranged for drying the leather, and further pairs of squeezing elements 11, which are simultaneously vibrated by a common drive 12 to soften and prevent shrinkage of the leathers, are disposed at alternate levels, so that two drying panels 7, one facing each side of the leather, lie between each two adjacent pairs of elements 11. The elements 4 and 11 have undulating surfaces contacting the belt surfaces so that the leather is flexed and thereby stretched during its travel. The drying chamber and a chamber enclosing the pair of elements 4 are connected by trunking 10, 6, respectively to exhausting plant. The water content of the leather is said to be reduced from 60 to 80 per cent when wet to 12 to 20 per cent after treatment.
Patent GB-191587-A (GB)
Title: Improvements in and relating to spring suspensions of baby carriages, invalid carriages and the like
IPC: B62B9/18
Filed: 1921-12-14
Abstract: 191,587. Field, E. D. Dec. 14, 1921. Springs, arrangement of.-A spring suspension for one or both ends of a baby carriage, invalid carriage, &c. comprises a pair of parallel Ceesprings a connected, at a position at least onethird the distance of the height of the springs, by a transverse bar d secured at i to the parallel longitudinal springs or frame members b, the upper ends of the springs a being connected to the sides of the carriage body and the lower ends being curved inwards and secured to the members b at e. In a modification, the transverse bar d is mounted to rotate in bearings at i and the lower ends of the springs a are connected to the members b by helical compression or other coiled springs. The lower ends of the springs a may be extended in U-form as at h, Fig. 3, and connected to the transverse bar d between the members b. The Cee-springs may be laminated.
Patent GB-880105-A (GB)
Title: Improvements in and relating to fly frames
IPC: D01H1/36
Filed: 1957-10-28
Abstract: 880,105. Fly frames. WEST POINT MANUFACTURING CO. Oct. 28, 1957 [Nov. 5, 1956] No. 33606/57. Class 120(2) In fly frames, a hydraulic variable speed drive to the bobbins and bobbin rail is controlled by the builder motion. In one embodiment, a main shaft 22 transmits drive to the front roller shaft 54 through gearing 44, 46, 48, 50, 52, and to the flyers 38 through gearing 24, 26, 28, 32, 34 and spindles 36. In addition, it drives one element of the compound or differential gear 40 and, through a shaft 42, the tumbler shaft 60 of the builder motion and a variable speed transmission 120, the output side of which is connected through gearing 136, 138, 140 with a shaft 70 carrying a bevel pinion 88 to drive the bobbin rail and a gear 72 to drive a further element of the differential gear 40 which in turn, through gearing 76, 78, 82, 84, drives the bobbins 86. The variable output of the transmission 120 is controlled by an arm 124 under the influence of a cam 146 indexed by a pawl 162 and rack wheel 156, the pawl 162 being driven by a solenoid 158 intermittently energized in response to movements of a cam 164 on the tumbler shaft 60. To prevent lost motion in the transmission 120, an electrically-driven hydraulic pump may maintain operating pressure at all times. The bobbin rail reversing mechanism may be replaced by hydraulic means and a hydraulic arrangement may be used instead of the differential gear 40. Provision may be made for rotating the bobbins without traversing for doffing and for moving the bobbin rail towards the end of its traverse after doffing. Specification 880,104 is referred to.
Patent GB-650220-A (GB)
Title: Improvements in multicontact relays
IPC: B28B1/52
Filed: 1948-12-31
Abstract: 650,220. Electromagnetic relays. WESTERN ELECTRIC CO., Inc. Dec. 31, 1948, No. 33613. Convention date, Jan. 7. [Class 38(v)]  In a relay with two or more sets of contact springs controlled by a single armature, the coding of the relay, i.e. the determining which pairs of co-operating contacts shall " make and which "break" when the armature is operated, is varied by replacing two insulating apertured cards, one fixed and one movable with the armature and both co-operating with the ends of the contact springs, with other cards of different configuration. Each card consists of two separable parts. In the form shown there is an upper set of contact springs or wires 45 with down-turned ends carrying contacts each of which is adapted to bridge contacts on the ends of two adjacent wires of the lower set of contact springs 47, which are double the number of the upper set. The fixed insulating card, Fig. 11, comprises a lower portion 71 with lower apertures receiving the pairs of the lower set of contact wires and upper slots against which the six outer contact wires of the upper set 45 are gripped by the upper portion 75. The movable insulating card, Fig. 10, which moves with the armature 66 has a lower portion 77 with lower and upper apertures of varying size and an upper portion 78 adapted to grip the downturned ends of the six centre contact wires 45 of the upper set. The arrangement is such that when the armature is attracted downwards, it carries with it the six centre contacts 45 so that these move into engagement with the corresponding contacts of the lower set while the six outer contact pairs of the lower set are also carried down out of engagement with the six outer contacts 45 of the upper set which are held fast by the fixed insulating card. Fig. 9 shows the two sets of contact wires passing through the fixed and movable cards. The armature 66 pivots about its R.H. end and is fixed to a flat spring 69 and also to spring 85 fixed at its end 81 to the frame 56. The armature bridges the gap between front pole pieces 58 and rear pole piece 55. A casing with a window encloses the contact springs. In a modification, Figs. 1-7 (not shown), the lower portion of the fixed insulating plate has apertures for receiving the upper contact wires and selected wires are pressed down in these apertures by prongs on a fork-like member constituting the upper portion of the plate. The core is T-shaped and the operating coil readily removable therefrom. A casing encloses magnet and contacts and an insulating block has apertures containing resistors in series or parallel with the coil. Specification 626,435 is referred to.
Patent GB-1496729-A (GB)
Title: Fasteners
IPC: F16B19/05
Filed: 1975-08-12
Abstract: 1496729 Rivets HUCK MFG CO 12 Aug 1975 [26 Aug 1974] 33625/75 Heading F2H A rivet comprises a headed pin and a collar 14 to be swaged on to a grooved locking portion 12 of the pin shank, the locking portion comprising at least three differently proportioned annular shoulders and grooves to give a predetermined load distribution along the locking portion engaged by the collar 14, successive grooves in the direction away from the head 10 of the pin having progressively greater axial length and/or radial depth. The axial lengths of successive ribs 19 forming the shoulders may also increase in the direction away from the head 10. The grooves and ribs may be symmetrical about respective radial planes Figs. 1a and 2, or may be asymmetric, Figs. 1, 1b.