baber/WOPTO huggingface dataset:
Patent GB-579477-A (GB)
Title: Improvements in the catalytic dehydrogenation of hydrocarbons
IPC: C07C5/333
Filed: 1944-04-25
Abstract: 579,477. Catalytic dehydrogenation. HOUDRY PROCESS CORPORATION. April 25, 1944, No. 7674. Convention date, March 5, 1943. Drawings to Specification. [Class 1 (i)] The catalytic dehydrogenation of hydrocarbons alternating with regeneration of catalyst in an adiabatic cycle is conducted at a temperature below that at which perfect adiabatic balance is attained, and the deficiency of heat is made up by supplying the reactant at a temperature higher than the average catalyst temperature. The temperature of adiabatic balance varies inversely as the contact time and the latter should be short enough to permit operation above 800 and preferably 900‹F. The usual catalysts may be employed, particularly chromium oxide on alumina, zirconia, or ceria. They may be pretreated with steam at 1200- 1600‹F. and a partial pressure between 1 and 30 lb. per sq in. According to an example, a catalyst comprising chromic acid on activated alumina is treated with steam at 1400‹F. and 3.25 lb. per sq. in. for ten hours and is then mixed with twice its volume of alundum. The mixture is used in a two stage process, the cycle comprising (1) dehydrogenation of butane. 5 minutes, (2) dehydrogenation of a mixture of butane and butene, 10 minutes, (3) regeneration, 10 minutes. Both reactants are supplied at 1100‹F., and the catalyst temperature attains equilibrium at 1080‹F. in the first stage and 1060‹F. in the second. The butadiene formed in the second stage is removed and the product of the first stage is used as make-up for the second.
Patent GB-1204676-A (GB)
Title: Tarn bulking process
Inventor: HAWTIN SELWYN GEORGE
IPC: D02G1/16
Filed: 1967-02-17
Abstract: 1,204,676. Bulking yarn. COURTAULDS Ltd. 16 Feb., 1968 [17 Feb., 1967], No. 7686/ 67. Headings D1F and D1W. A continuous filament yarn is overfed into a bulking jet, then passed through an interlacing jet, and the interlaced bulked yarn is side-wound into a package. The two jets may be positioned on a cellulose acetate spinning machine, or in the case of nylon filaments on a draw-winding machine.
Patent GB-526184-A (GB)
Title: Improvements in and relating to electrically operated automatic soot blowing equipments
IPC: F28G15/00
Filed: 1939-03-09
Abstract: 526,184. Control of several motors. BRITISH THOMSON-HOUSTON CO., Ltd., and JEFFERSON, H. F. March 9, 1939, No. 7694. Drawings to Specification. [Class 38 (iii)] A soot blower comprises a number of heads each driven by its own motor, and all operating in sequence, a set of overload relays connected in the common supply to the driving motors, a timing relay energized upon the starting of each head and completing its operation in a time exceeding the normal time of operation of a head and control contacts of the overload and timing relays effective to operate a signal and disconnect the motors. Where the heads are retractable they are arranged in two or more series and each series has its own set of reversing contactors and its own overload and timing relays. The signal may be audible and may also comprise visible signals, one to each head, and each brought by a selector switch under control of the overload and timing relays while its head is operating.
Patent GB-478467-A (GB)
Title: Improvements in or relating to arc lamps and particularly to arc lamps for use with cinematographic projectors
IPC: H05B31/00
Filed: 1937-03-16
Abstract: 478,467. Arc lamps. COMPAGNIE RADIO - CINEMA. March 16, 1937, No. 7737. Convention date, March 25, 1936. [Class 39 (i)] [Also in Group XI] In an arc lamp employing thin metal-coated carbons the positive carbon is held near its burning end in a clip which serves as a current conductor and through which it is fed forward by a member pressing on its rear end; arrangements of screens for the mirror and ventilation channels are also described. The clip 11 through which the positive carbon 10 passes is carried on a standard supplied with current through a conductor 12 and mounted on rods 15 on which slides a standard 17 carrying a rod 16 pressing against the rear end of the carbon 10. The standard 17 is moved along the rods 15 by a screw 19 driven by a motor 29 through gearing including a friction clutch, so that the standard can also be moved by a hand-wheel 3. To return the clip 11 into position for inserting a fresh carbon when the standard 17 is withdrawn it is made to slide on the rods 15 against springs 28. The negative carbon is also fed forward by a motor through gearing including a slipping clutch, the two motors being connected in parallel with the arc. In order to protect the reflector from sparks emitted on striking the arc a screen 33 is provided made in two parts connected by gearing with the shutter 61 so that when the shutter is opened the parts are separated and removed from the reflector. The casing 1 is provided with an inner wall 55, Fig. 6, continued as an inner discharge tube 53. Air enters by openings in the lower part of the casing, part passing over the arc and leaving by the tube 53 and the rest passing between the inner and outer walls of the casing and leaving by the outer tube 54.
Patent GB-694558-A (GB)
Title: Separating device for solid materials
IPC: B07B7/08
Filed: 1952-03-26
Abstract: 694,558. Pneumatic separating; centrifugal separators. AKT.-GES. FUR UNTERNEHMUNGEN DER EISENUND STAHLINDUSTRIE. March 26, 1952 [April 27, 1951], No. 7762/52. Classes 23 and 117 Material to be separated is fed by a funnel 3 to a distributing plate 2 attached to a rotary paddle wheel 1 and is thrown against a stationary deflector cone 4 and reduced to powder. It then trickles as a uniform film downwardly along the periphery of the wheel 1, is entrained by the air current produced by the fan 5, which is driven independently of the wheel 1, and is subjected to the action of the paddles of the wheel 1. Due to the suction produced by the fan a partial vacuum is produced in the space surrounding the wheel 1. The fine material is drawn into the interior of the wheel 1 and through the fan, which is provided with a housing of spiral shape communicating with an annular space 8 formed between two funnels 6 and 7, is flung into the space 8, and leaves, through an outlet 9. The coarser material falls into the inner funnel 6 and is discharged through an outlet 10.
Patent GB-1067844-A (GB)
Title: Improvements in hook bolts
Inventor: ARCHER THOMAS HERBERT
IPC: F16B5/02
Filed: 1963-02-27
Abstract: 1,067,844. Clamps. BRITISH SCREW CO. Ltd. Feb. 5, 1964 [Feb. 27, 1963], No. 7816/63. Heading E2B. [Also in Division F2] A bolt with a threaded end (11), e.g. for bearing a nut (20) and a sealing washer and securing wall- or roof-sheeting (19), has its other end bent in the form of an in-turned hook (12) with a first part (13) (the extremity) parallel to the shank (10) and spaced therefrom to fit closely on a flange (17) on a web (18) of an angle-section metal purlin (14) and a second part (15) perpendicular to the shank (10) and joined to that end of the part (13) which is nearer the threaded bolt-end (11), the part (15) being joined to the shank (10) by a further part (16). The bolt is of high tensile steel and the hook (12) is formed by cold bending.
Patent GB-1449706-A (GB)
Title: Box spring assembly and springs therefor
IPC: A47C7/35
Filed: 1974-02-21
Abstract: 1449706 Spring upholstery HOOVER BALL & BEARING CO 21 Feb 1974 [23 May 1973] 7967/74 Heading A4M [Also in Division F2] An assembly of springs comprises a plurality of upholstery springs 16 mounted on a frame 12 and connected together to form a spring deck disposed above the frame and yieldably movable toward the frame, at least some of the springs 16 and/or 18 each comprising a one piece wire bent to form a horizontal body portion 22 forming the top of the assembly and depending end portions 24, Figs. 3, 4, each end portion 24 comprising a plurality of connecting bars 40, 42 and horizontal torsion bars 44 extending between and inter-connecting adjacent connecting bars 40, 42, alternate ones 40 of the connecting bars in the unloaded condition of the spring 16, as in Fig. 3, being substantially horizontal or less steeply inclined in the opposite sense than the remaining ones 42 of the connecting bars, the assembly being such that when the body portions 22 are subjected in use to a downward load the alternate ones 40 of the bars displace to a position in which they are inclined in the same sense as the remaining ones 42 of the bars, as in Fig. 4. The springs 16 extend longitudinally and transversely of the frame 12 and are clipped, at 51, to internal support springs 18 carried by cross rails 13 of the frame and, at 50, to a border wire 20. As shown, a foot portion 46 for securing to the frame, e.g. by staples, extends from the lowermost torsion bar. In a modified form of spring end 24a, Fig. 7, a generally upright bar 34 is connected to and between torsion bars 32 extending from the lowermost connecting bar 28 and a mounting foot 36.
Patent GB-629556-A (GB)
Title: Apparatus for the artificial dilation of the neck of the human uterus
IPC: A61M29/02
Filed: 1947-03-24
Abstract: 629,556. Surgical dilators. DIGENAKIS, N. M. March 24, 1947, No. 7980. Convention date, March 21, 1945. [Class 81 (ii)] Apparatus for dilating the neck of the uterus comprises a bag or sac 1 connected to a vessel 7 containing liquid which may be forced into the sac by a pump 11, manometers 4, 5 and valves 2, 6, 8 being provided to measure and regulate the pressure and means to indicate the quantity of liquid displaced. The vessel has a graduated sight glass and a pressure relief valve 2. The sac may have a transparent portion and an electric bulb to enable the dilation to be watched. A metal rod may connect the ends of the sac to prevent it extending lengthwise. The sac may be of stretchable or non-stretchable material. The Specification as open to inspection under Sect. 91 states also that the sac can be inflated by gas. This subject-matter does not appear in the Specification as accepted.
Patent GB-165172-A (GB)
Title: Improved apparatus for use in tempering and flattening saws
IPC: B23D63/18
Filed: 1920-03-18
Abstract: 165,172. Senior, H. March 18, 1920. Saws.-A press for flattening and heating saws prior to tempering is provided with three or more radial arms, each provided with a screw, in addition to the central screw, the screws or their nuts being rotated simultaneously by means of gearing. The press is supported in a furnace heated by gas, coal, or coke. The press shown has three radial arms 3 each provided with a screw 7 secured to the upper die 2. The screws are operated by nuts 9 mounted on ball bearings 10, 11 and carrying gear-wheels 18, gearing with a wheel 14 on the nut of the central screw, which is similarly arranged. The nut of the central screw carries a worm-wheel 12 driven by a worm 16. The central screw is of opposite hand to the outer screws. The radial arms may be connected by bridgepieces also provided with screws, which may be driven from the central screw, or from the screws in the radial arms. The lower die 1 is formed with lugs to which the radial arms 3 are connected by means of bolts 4 and distance-pieces 5. The upper die 2 is formed with lugs engaging the distance-pieces 5. Parallel gas burners 20 extend below the lower die 1 from pipes 21. The press is supported on outerangle iron blocks 25, the webs of which are arranged to clear the burners 20, and a central block 23, which is perforated for the passage of burner tubes.
Patent GB-231503-A (GB)
Title: Process of making a covering for roads, floors, roofs, and the like
IPC: C08L95/00
Filed: 1925-03-25
Abstract: 231,503. Haagen, R. C. van. March 27, 1924, [Convention date]. Compositions containing bituminous materials and india-rubber.-A composition for covering roads, roofs, and floors consists of a solution of vulcanized rubber in asphalt mixed with a mineral filler such as sand or pulverized basalt, slag, &c. A typical composition consists of 2 parts of Trinidad asphalt, 1 part of rubber, and 6 parts of sand.
Patent GB-658694-A (GB)
Title: Improvements in or relating to preformed sinuous springs and cushions constructed therefrom
IPC: A47C7/30
Filed: 1949-03-24
Abstract: 658,694. Springs. NO-SAG SPRING CO. March 24, 1949, Nos. 8044 and 8045. Convention dates, March 24, 1948 and Oct. 20, 1948. [Class 108(iii)] [Also in Group XIV] Seats or seat backs having sinuous wire springs S spanning a supporting frame utilize prestressed springs with integral legs L, the springs before attachment being curved into a relatively small arc into which the legs extend as in Fig. 13.
Patent GB-805319-A (GB)
Title: Improvements relating to turbine wheels
IPC: F01D5/30
Filed: 1957-03-12
Abstract: 805,319. Bladed turbine rotors. GENERAL MOTORS CORPORATION. March 12, 1957 [June 13, 1956], No. 8089/57. Class 110 (3). [Also in Group XXV] In a bladed turbine rotor disc, blades 12 each comprising an aerofoil portion 13 and a platform 15 are mounted by their roots 14 in undercut axial slots formed in the periphery of the disc, and the blades are prevented from endwise movement in the slots by means of axiallydirected keys 20 each of which lies in a groove 24 in the disc periphery between two adjacent blade-mounting slots. Each key, which underlies the platforms 15 of the blades mounted in these slots, is interlocked with at least one of the blades by a lug and notch device, and each key has heads to secure the key against axial movement in its groove, at least one of the heads being formed by bending over an originally straight part of the key. The key 20 is sectorshaped in cross-section, is tapered along its length, has a head portion 26 at the thicker end and has a lug 31 formed on one of its upper faces 22. The blade platforms 15 have lower faces which are inclined upwardly and correspond with the inclined upper surfaces 21, 22 of the key 20, and each platform is formed at one side with a notch 32 in which the lug 31 of a key 20 is engaged. The blade and key are engaged together on to the rotor disc, the thin end 27 of the key being subsequently bent downwardly to engage the face 18 of the rotor disc whereby the key and blade are locked against endwise movement with respect to the rotor disc.
Patent GB-1408799-A (GB)
Title: Tubulous boiler
IPC: F22B21/00
Filed: 1973-02-19
Abstract: 1408799 Water tube boilers STEIN INDUSTRIE 19 Feb 1973 [25 Feb 1972] 8107/73 Heading F4A In a water tube boiler having four side faces a supply header 2 and a discharge header 3 are connected by tubes 1 of a bundle and water is supplied through a pipe 16, a steam separator 14 and pipes 15 to supply collector headers 10 to be heated by hot combustion gases 12 so that steam generated passes from discharge header 3 to discharge collector headers 9, pipes 13, steam separator 14 and steam discharge pipe 17. The boiler is arranged in separate blocks 5, 5a etc. joined together by welding and each separated by partition members 6. The headers 2 and 3 are welded to flat plates 4 as shown in Fig. 5. The assembly is also provided with a panel of vertically disposed tubes 7 provided along the whole length of the boiler assembly, the tubes 7 being connected to a discharge header 8 and a supply header (not shown).
Patent GB-508673-A (GB)
Title: Improvements relating to dowels or sockets
IPC: B22C7/00
Filed: 1939-03-14
Abstract: 508,673. Dowels or sockets. STANLEY, W. March 14, 1939, No. 8130. [Class 89 (ii)] A dowel 11 or socket 12 for use with coacting parts of a wooden moulding pattern or the like has longitudinal grooves 15 and circumferential V-shape grooves 14. The grooves 15 may be slightly helical and the grooves 14 have one wall 16 substantially at right angles to the axis of the dowel or socket to assist retention. The grooves 14 may be parts of a coarse spiral groove.
Patent GB-645294-A (GB)
Title: Improvements in or relating to dummy eggs for poultry
IPC: A01K33/00
Filed: 1948-03-19
Abstract: Decoy eggs are made in two or more parts, solid or hollow, with abutting or overlapping edges.  If hollow they may be filled with sand.  Cellulose acetate or a synthetic resin may be used.
Patent GB-640500-A (GB)
Title: Air core inductor for radio-frequencies with pre-determined dynamic resistance
IPC: H01F17/02
Filed: 1946-04-16
Abstract: 640,500. Inductances. HOLZER, R. C. DE. April 16, 1946, No. 8225. [Class 38 (ii)] An air-cored inductance comprises two series of turns of the same diameter, the turns of part of one series 8 lying between the same number of turns of the other series 11, the end of one series being connected to the beginning of the other. To make a prototype inductor having required characteristics, the first series of turns 14, Fig. 6, is formed by winding a conductor round a notched cruciform former of low loss material. A second series of turns 17 is wound on the former with its turns partly interspaced with series 14 and its beginning 16 is connected to the end of the first series by a clamp 20. In order to adjust the characteristics of the inductor, clamp 20 may be loosened and the two series rotated relatively. Three series of turns, wire of rectangular cross-section, and stranded wire may be used. Prototype inductances so made may be copied, either exactly or with different dimensions obtained by applying the known laws of similarity. It is stated that the characteristic with which the invention is particularly concerned is the coefficient x in the formula R d  = K.f x , where R d  is the dynamic resistance and f the frequency which is above 3 megacycles/sec. Numerical examples are given.
Patent GB-1382031-A (GB)
Title: Stabilisation of vodka
IPC: C12H1/04
Filed: 1973-02-20
Abstract: 1382031 Stabilization of vodka HEUBLEIN Inc 20 Feb 1973 [10 July 1972] 8245/73 Heading C6E A method for the stabilization of vodka involves treating the vodka with activated charcoal to remove or decrease the concentration of congenerics responsible for taste and odour and treating the charcoal-treated vodka with a strongly acidic cationic exchange resin in the sodium or potassium form to remove such polyvalent metallic ions e.g. manganese and calcium, as may have been introduced into the vodka by the treatment with activated charcoal and to control the pH of the vodka so that it lies within the range of 7À2 to 9. The resin may be a sulphanated polystyrene.
Patent GB-739666-A (GB)
Title: Improvements relating to balancing means for rotary apparatus
IPC: D06F37/24
Filed: 1954-03-22
Abstract: 739,666. Centrifugal hydro - extractors. GENERAL ELECTRIC CO. March 22, 1954 [March 20, 1953], No. 8339/54. Class 23. A rotary body having a limited movement substantially perpendicular to the axis of rotation is balanced by fluid retained in an annular chamber surrounding the body and formed by a wall resiliently connected to the body. The rotary body is the basket 6 of a washing-machine and is fixed to a shaft 5 projecting from a casing 3 housing the motor and drive mechanism. The casing is mounted in a resilient bearing 15 on the base 16 and is connected to the base by friction dampers 22, the arrangement permitting limited pivotal movement of the basket about the bearing. The annular chamber is formed by a wall 28 attached to the basket by resilient members 29. For spin drying the basket is accelerated to above its 'critical speed and during this acceleration excessive vibration is prevented by. the friction dampers. During spinning liquid expelled through apertures 30 in the basket is retained by the wall. The liquid retained by the wall tends to collect in the side of the wall opposite the centre of gravity of the unbalanced basket load, and the effect of centrifugal force on the liquid will shift the wall to a position eccentric with the basket, thus increasing the balancing effect of the liquid. Specifications 646,403 and 676,348 are referred to.
Patent GB-1487820-A (GB)
Title: Removing vinyl halide from polyvinyl halide slurries
IPC: C08F6/06
Filed: 1976-03-02
Abstract: 1487820 Removing monomer from polyvinyl halide slurries CONTINENTAL OIL CO 2 March 1976 [19 June 1975] 08365/76 Heading C3P Vinyl halide is removed from a polyvinyl halide-containing slurry by passing a gas through the slurry, desirably at elevated temperature, e.g. at 50-100 C. Nitrogen is the preferred gas; others mentioned are air, CO 2 , and methane or natural gas. The process is of particular application in the treatment of water-PVC slurries.
Patent GB-1092972-A (GB)
Title: Index mechanism
IPC: H01H19/11
Filed: 1966-02-25
Abstract: 1,092,972. Rotary switches. OAK ELECTRO/NETICS CORPORATION. Feb. 25, 1966 [Feb. 26, 1965], No. 8430/66. Heading H2B. [Also in Division F2] An index mechanism comprising a rotatable notched disc 45 engageable with fixed balls 32, 33 is mounted in a single piece zinc or aluminium alloy housing 20 comprising a square base 21 having bearing means 35 for the shaft 39, opposed walls 24, 25 provided with bores housing balls 32, 33 and opposed walls (22, 23, Fig. 3) spaced from walls 24, 25 and provided with laterally extending ears (57, Fig. 3) and fingers (34, Fig. 3) for retaining the ends of biasing leaf springs 49 for balls 32, 33. A stop means may comprise a tab or tabs 50 stamped from disc 45 engageable with a leg (55, Fig. 2) provided on an annular member (54, Fig. 2) and disposed in any one of a plurality of holes (53, Fig. 1) in the base 21, or engageable with a stop (75, Fig. 3) integral with housing 20. Ears (57, Fig. 3) on walls (22, 23) may have holes (56, Fig. 3) for tie rods for stator sections, or may have integrally formed strut members (59, 60, Fig. 9). The rear stator section may be held by swaging the strut member (Fig. 10) or by spring clips (66, Fig. 11). Integral V-section tie rods (70, Fig. 17) may retain the stator sections by bending the ends of the legs into engagement with opposite faces thereof. A resilient plastics cover 76 provided with a flat top 77 and a continuous side wall 78 has projections (82, Fig. 15) snapping into notches (83, Fig. 15) in ears (57). To mount larger stator sections, a flat adapter plate 85 having holes 86 for tie rods is mounted on holes (56) in ears (57), either by tabs (87, Fig. 13) on plate 85 being crimped over the holes (56) or by aligned holes (97, Fig. 16) and screws. A stop abutment 93 on plate 85 is engageable with tab 50 on disc 45. In a modification (Figs. 5-7) the base (121) is circular and walls (122, 123) are provided on an annular flange (170, Fig. 6). Walls (124, 125) have U-slots (Fig. 7) receiving the balls (132, 133).