baber/WOPTO huggingface dataset:
Patent GB-512235-A (GB)
Title: Intermittent tension devices
IPC: D05B47/00
Filed: 1939-04-13
Abstract: 512,235. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). April 13, 1939, No. 11169. [Class 112] A tension device having an operative and a retracted position is provided with a guard to prevent threading of the device when in the retracted position; a spring latch is provided to lock the device in one of its positions. The invention is intended to be applied to machines having a number of different devices for various types of sewing, and is described as applied to an intermittent tension device for use when thread-marking on a machine which has other tension devices for other operations. The tension device comprises the usual shouldered and slotted stem 11, tension discs 12, tensioning spring 18 and adjusting nut 19, and in the device shown the spring 18 bears on a pressure disc 17 having a central bar, working in the slot of the stem 11, on which the axial tension-release pin 20 acts. The stem 11 is slidable in a housing secured in the wall of the machine arm 1, its movement being limited by a pin 28 engaging a slot in the housing 8, and is normally pressed outwards by a spring 23 to a position in which the pin 20 is clear of the cam 21 on the needle-shaft; in this inoperative position the discs 12 are covered by an annular guard 36 secured to the housing 8, so that the thread cannot be inserted. A spring latch 25, Fig. 7, is secured to the housing 8 by the same screws as the guard 36, and has a fingerpiece 34 and an L-shaped slot 27 which engages the pin 28; the latch tends to spring into a position in which the stem 11 is held in its inward position, in which the pin 20 is engaged by the cam 21 to release the tension during the long feed stroke used in threadmarking.
Patent GB-596331-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H15/38
Filed: 1945-05-03
Abstract: 596,331. Variable-speed friction gearing. STONE & CO., Ltd., J., and HATCHER, E. C. May 3, 1945, No. 11228. [Class 80(ii)] [Also in Group XXXIV] In variable-speed gearing of the toric disc type having two independently controlled sets of tiltable rollers engaged between a central disc and a pair of flanking discs with independent gearing characteristics, each control means is actuated by a completely individual operating device. Two forms of gearing are 'shown, one having an input central disc driving two independent output flanking discs, and the other having input and output flanking discs connected by a floating central disc. In the first form, a driving disc 9, Fig. 1, powered through a dog member 7 from an input shaft 1, is connected to driven disc ; 14, 21 through precessional rollers 25, 24 respectively. The disc 14 is connected by dogs to one output shaft 2 and the disc 21 is similarly connected through a shaft 18 to the other output shaft 3. A Belleville washer 23 supplies bearing pressure between the discs and rollers. Precessional tilting of the rollers 25, 24 is effected by rocking the mountings 27, Fig. 2, of their carriers 26 about fixed pivots 28. To this end, arms 32, 31 on the mountings engage, directly and through a sleeve 34 respectively, rotatable rings 35, 36 connected by links 39, 37 to independent control levers 40, 38. In the second form, the disc 21 is entrained by the input shaft 1 and drives, through the now floating central disc 9, the disc 14 which is unitary with a sleeve 41. A dog clutch member 43 splined on the output shaft 3 is slidable by a lever 43<SP>1</SP> to engage either the sleeve 41 or, for a direct drive, a member 44 on a shaft 18 rigid with the disc 21. Bearing pressure is supplied by a Belleville washer 23 as before. The roller carrier mountings 27 are now pivoted on a member 29, revoluble forwardly on the shaft 18 to allow the whole gearing to idle solidly during direct drive, but restrained against backward rotation by a one-way detent 45 to take the carrier reaction when the gearing is in use. The mountings 27 are rocked for precessional tilting of the rollers 24 by rotary sleeves 47 in which the arms 31 of the mountings engage, the necessary relative rotation between the member 29 and the sleeves 47 being produced by ballended arms 48 on the latter engaging oblique slots 50 in sleeves 51 slidably splined on the member 29 and independently axially movable from separate control levers 53. The detent 45 may be replaced by a friction brake whose two shoes 54, Fig. 6, are normally held against the edge of the member 29 by spring pressure but can be separated to release the braking action by turning a central camming member 56 through a handle 57.
Patent GB-117455-A (GB)
Title: Improvements in Tongs for Drawing Nails.
Inventor: HEINRICH GEORG
IPC: B25C11/02
Filed: 1918-07-09
Abstract: 117,455. Heinrich, G. May 30, 1917, [Convention date]. Pincers.-Nail-extracting pincers are provided with projecting parts b having notches c, Fig. 2, and sharp edges terminating in points d to out into the wood beneath the heads of deeply-sunk nails. The wood chips escape by side passages e. The edges of the parts b do not meet when the pincers are closed, so that accidental severance of the nail is prevented. The Specification as open to inspection under Sect. 91 (3) (a) states also that for use with nails which are very deeply embedded or for very hard wood, the pincers may be provided with a side cutting device g, Fig. 5 (Cancelled), for gouging out the wood, the device g being provided with a curved cutting edge h and a recess i for the escape of the chips. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1039412-A (GB)
Title: Electrolytic technique for oxygen purification
IPC: C01B13/02
Filed: 1964-03-17
Abstract: <PICT:1039412/C6-C7/1> Oxygen from a gas mixture, e.g. air, is electrolytically solubilized at a cathode 3, Fig. 1, and reconstituted at an anode 7 to separate or purify it from the gas mixture.  The electrodes 3, 7 are gas-permeable, liquid-impermeable and comprise a catalyst.  Electrolyte 4 is selected such that the impurity gases are insoluble in it.  Specified electrolytes are aqueous media containing H2SO4 HClO4, H3PO4, p-toluenesulphonic acid, NaOH and KOH.  The oxygen containing mixture is supplied at 1 and the impurities removed at 5.  A potential is used such that no hydrogen is evolved, e.g. 0.1 to 1.5 volts. Fig. 2 shows an alternate cell comprising the following members which are bolted together:- a membrane 11, e.g. a paper filter, saturated with electrolyte; gas-permeable liquid-impermeable electrodes 12, 13; metal screens 14, 15 which are directly linked to an external power source; spacers 16, 17 of inert metal; sealing gaskets 18, 19; and face plates 20, 21. Impure O2 is supplied at 22, impuritie removed at 23 and pure O2 removed at 24. Cells may be electrically connected in series or in parallel.  The electrolyte may be an ion-conducting membrane. Electrodes can be made from carbon in which Pt, Pd, Ir, Rh or Ru has been incorporated. Electrodes are formed in Example 1 by applying to steel mesh a mixture of Pt black, colloidal SiO2 and polytetrafluorethylene; in Example 2 by applying to Ta mesh, a mixture of Pt black, colloidal Al2O3 and polytetrafluoroethylene; in Example 5 by applying to a stainless steel screen an emulsion of Ni, graphite and polyethylene, and in Example 6 the electrodes comprise Ni screens supporting Ag on graphite.  Example 4 discloses an anionic ion exchange membrane saturated with ZNKOH as electrolyte employed as the electrode separator.
Patent GB-1170083-A (GB)
Title: Ball Screw and Nut Mechanisms
Inventor: WHICKER JOHN CHARLES FREDERICK
IPC: F16H25/22
Filed: 1966-03-15
Abstract: 1,170,083. Screw-and-nut gearing. ROTAX Ltd. 5 May, 1967 [15 March, 1966], No. 11332/66. Heading F2Q. A screw-and-nut mechanism comprises a screw 10 having a helical rib 11, the pitch of which is substantially greater than its axial width, a part-nut 12 having a helical recess 14 formed therein, and two rows 16 of balls located between the rib 11 and recess 14, the rows being joined at their ends by inserts 17. Each insert 17 is cylindrical and provided with a tongue 18 which prevents it from rotating, and has a groove shaped to carry balls leaving one row over the rib 11 and into the other row. The inserts 17 are retained by a sleeve 19. Further pairs of rows may be provided with further pairs of inserts, and a pair of such nuts may be provided in a housing.
Patent GB-1393003-A (GB)
Title: Sea harvesting apparatus and method
IPC: A01D44/02
Filed: 1972-03-10
Abstract: 1393003 Sea-harvesting apparatus SEA HARVEST INC 10 March 1972 [17 Feb 1972] 11354/72 Heading A1F [Also in Divisions Bl and F1] Apparatus for harvesting marine vegetation comprises a portable underwater sickle-bar cutter unit 20 operated by a diver and powered by an air motor 55. Cut vegetation is sucked up a flexible tube 23 of length greater than ten feet under the action of an airlift 22 positioned between six feet and ten feet below the water surface and through a discharge pipe 26 into a collection strainer 28 on board a boat 30. An air compressor 31 on the boat supplies air to the diver via air line 32, and from a separate volume tank air to operate the airlift via air line 34 and air to operate the air motor 55 on the cutter via air line 36. Air line 39 takes air from the air motor 55 back for atmospheric discharge, alternatively it may be used to operate the airlift. Fitting a Y-type reducing coupling (42) below the airlift 22 permits two divers to work independently (Figure 2, not shown). Only the last three feet of the flexible suction tube associated with each cutting unit is then made of highly flexible hose the remainder being fabric-reinforced rubber hose. The airlift is shown in Figure 3, and has handles 45 and two hose connectors for air line 34, one being sealed by a cap. The hose connectors lead to an air plenum chamber, from which air passes via staggered upwardly slanting holes 47 into a delivery tube 25. The cutter unit is shown in Figure 6 and carries a collecting hood 24 with downturned edges 24a, handles 64 and 65, and a control valve 56 for the air line 36 to the air motor 55. The reciprocating cutting blade 38a is narrower than the fixed blade 38b for safety, and is driven by a cam follower 59 eccentrically carried by the motor drive shaft 57 and working within an elongated laterally oriented cam slot 60 in the cutting blade 38a (Figure 7). The undersides of the base plate 62 and end plate 63 are spaced about one inch below the cutting plane to function as a guide for the diver; he cuts using sideward sweeps in both directions. In alternative embodiments of cutter unit (Figures 10, 11 and 12, not shown) the air motor is mounted with its drive shaft horizontal and drives the cutting blade through a clutch and motion translator device. The collecting hoods are more pronounced and different entry angles for the suction tubes are used.
Patent GB-117942-A (GB)
Title: Improvements in Reinforced Concrete, more especially for use in Building Ships, Floating Docks, Dry Docks, Tanks, Culverts, Pipes and the like.
Inventor: WHITHAM FREDRIC EDWARD
IPC: B63B5/16
Filed: 1917-08-08
Abstract: 117,942. Whitham, F. E. Aug. 8, 1917. Concrete vessels.-In reinforcements for concrete structures and of the kind comprising flattened helices or coils C intermeshed and locked together by longitudinal bars D, the latter are indented alternately on opposite sides, as shown in Fig. 3, to position the coils. For ships' hulls, dry docks, &c., two or more layers are placed near together carvel fashion so that the coils and bars of the fabrics cross at an angle, as shown in Fig. 4.
Patent GB-161978-A (GB)
Title: Improvements in the carrying planes of aeroplanes and air-craft
IPC: B64C21/02
Filed: 1921-04-20
Abstract: 161,978. Savani, L. April 21, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Planes, arrangement and construction of.- Flared openings a, Fig. 3, are formed in aeroplane and other aircraft wings at the centre of pressure to minimize movement of the position of the centre of pressure. Fig. 4 shows the invention applied to a machine having multiplane wings b<1>, b<2>.
Patent GB-923138-A (GB)
Title: Process and apparatus for crystallising solutions
IPC: C23G1/36
Filed: 1961-03-28
Abstract: <PICT:0923138/III/1> In a process for the continuous crystallization of heptahydrate of iron sulphate from sulphuric acid pickling solutions, the liquid to be treated is introduced into a container 2 having a circular cross-section and a conical lower portion, flows downwards in said container outside a cylindrical pipe 9 disposed concentrically inside the container and separating the two treatment spaces from each other, as far as the zone of the conical container portion, and from there rises again through the treatment space disposed inside the cylindrical pipe, air being blown into the inner treatment space by means of a ring of nozzles 14 at the lower extremity of said space so as to secure a rapid upward movement. The crystals, cooled also by coils 10, collect in container 2 and via automatic pneumatic conveyer system 12 are taken off at 15.
Patent GB-580186-A (GB)
Title: Improvements in band clips of the kind having closing worm gear
IPC: F16L33/08
Filed: 1944-06-15
Abstract: 580,186. Band clips. CHENEY & SON, Ltd., C. W., and'CHENEY, C. W. June 15, 1944, No. 11421. [Class 44] In a band clip of the type tightened by a worm mounted on one end of the band and engaging teeth formed on the other end, as described for example in Specification 563,807 in order to allow use of a wider band without corresponding increase in the size of worm and housing, one or more relatively narrow toothed strips are secured to one end of the wider band, a corresponding number of worms and housings being secured on the other end. The securing of strips and housings may be by electric welding. As shown, two toothed sprips 3 have their end portions 3c welded in spaced relation on the end 1c of a wide band proper 1. On the other end 1a of the wide band two correspondingly spaced housings 2 are welded at some distance from the end of the band so that in use the ends 1a, 1c may overlap. The projecting portions of the strips 3 are provided with teeth 3e. The lower worm and housing shown in Fig. 2 are as described in Specification 563,807. The upper worm and housing are of another known kind in which the worm has a head 2c bearing against one end of the housing and a washer 2d bearing against the other end.
Patent GB-233143-A (GB)
Title: Improvements relating to gear-change mechanism
IPC: B62M25/04
Filed: 1924-05-09
Abstract: 233,143. Bowler, H. P. May 9, 1924. Controlling variable-speed gearing.-A control shaft 1 is turned to right or left for gearing up and down respectively, and such rotation in two directions is effected by independent rods, levers, or the like, operated separately by hand or foot. In the arrangement shown in Figs. 1 and 2, there are two spring-pressed rods 8, 9 each with its own pedal 20 for turning a ratchet wheel 2 on the shaft 1 in one direction or the other. The rods carry spring pawls 6, 7 which engage in teeth in the wheel 2 and turn that wheel one step for each depression of the rod. Each step may correspond to a speed change. In the arrangement shown in Fig. 4, there are two levers 28, 29 on a pivot 35 eccentric to the shaft 1. These levers carry pawls 30, 31 which engage the wheel 2 on depression of the lever, one lever being depressed for gearing up and the other for gearing down.
Patent GB-579368-A (GB)
Title: Improvements in or relating to the manufacture of bituminous materials
IPC: C10C3/02
Filed: 1942-08-17
Abstract: A bituminous product of high elastic recovery is prepared by intimately mixing a blend of asphaltic bitumen and Lake asphalt, with an unsaturated vegetable oil, e.g. linseed oil, rape oil, or castor oil, or modified oil, and sulphur, heating the mixture until marked frothing commences and cooling the foam thus produced as by pouring it into a cold mould, whereupon it may be made homogeneous by mechanically working between heated rolls or in a kneading machine. The de-gassed homogeneous product may be extruded, moulded or sheeted, and may be used as insulation for electric cables; it may ultimately be cured.  Fillers, e.g. carbon black, cotton linters, wood meal, or china clay, vulcanizing agents, accelerators, natural or artificial resins and plasticisers may be incorporated, and the product may be blended with natural, reclaimed or synthetic rubber &c.
Patent GB-663417-A (GB)
Title: Control of electric motors
IPC: H02K11/00
Filed: 1949-04-30
Abstract: 663,417. Centrifugal switches. MIDLAND REPETITION & AUTO MANUFACTURING CO., Ltd., HOLMES, G. C., SIMMONS, W. N., and TAYLOR, H.C. Dec. 31, 1949. (April 30, 1949] No. 11584/49. Class 38 (v). [Also in Group XXXV] The speed of a small electric motor is maintained constant at a predetermined speed by a device comprising a non- rotatable make- and-break switch having a pair of contacts 24 one of which is pivotally mounted on an insulating member 31 and is pressed towards the other contact and towards the end of an axially-movable element 30 of the governor by means of a spring 32 the loading of which is adjustable to set the governor for different speeds. The pressure of the spring 32 is predetermined by setting the position of a member 37 acting on this spring through a block 40. At selector speed, the element 30 of the governor forces the member 31 to open the contacts 24 against the spring 32. An actuating knob 38 secured to one end of the member 37 is arranged to turn the latter and to cause it to move axially through the engagement of a pin 41 carried by the block 40 with a helical groove 42 in the wall of the member 37. Thus the pre-setting of the knob 38 alters the spring compression and consequently alters the speed at which the contacts 24 should open by the governor force.
Patent GB-180527-A (GB)
Title: Improvements in devices for supplying liquid soap
IPC: A47K5/122
Filed: 1921-04-22
Abstract: 180,527. Delperier, R. L. April 22, 1921. Soap-holders.-A device for supplying liquid soap comprises a flexible pear-shaped receptacle provided with a delivery tube, one end of which extends nearly to the bottom of the receptacle, while the other end is secured to a nozzle at the end of the neck. The open end of the receptacle 1, Fig. 1, which is made of india-rubber, is bound on a ring 2 to which the neck 3a is screwed. The rubber delivery tube 6 is fitted to a nozzle 5 screwed into the end of the neck 3<a> and provided with an aperture 7 uncovered by the tube 6 to admit air into the receptacle when pressure thereon is released. The nozzle may be covered by a cap 8 when in use. As shown in Fig. 4, the receptacle may be enclosed in a metal casing 9 adapted to be wounted above a wash-stand. A lug 20 on a lever 18 pivoted in a sheath 21 on the outside of the casing 9 passes through an opening 17 in the casing to exert pressure on the receptacle.
Patent GB-725471-A (GB)
Title: Improvements in or relating to respirator filter units for use in cigarettes, smoking appliances, gas masks and the like
IPC: A24D3/02
Filed: 1953-04-28
Abstract: 725,471. Gas filters. LORILLARD CO., P., and H. & V. SPECIALTIES CO., Inc. April 28, 1953 [May 2, 1952], No. 11733/53. Class 8 (2). [Also in Group VI] Gas filter plugs are cut from a rope 28<SP>1</SP>, Fig. 10c, formed by longitudinally folding a laminated strip of alternate layers P, C, Fig. 2, of crepe paper and cotton into a J-sectioned trough by means of a roller and a conical die (see Group VI) compressing the trough circumferentially and wrapping with paper.
Patent GB-1531688-A (GB)
Title: Apparatus for cleaning fibrous suspensions of low stock consistency
IPC: B04C5/14
Filed: 1977-03-21
Abstract: 1531688 Vortex cleaner; wet screening apparatus HERMANN FINCKH MASCHINENFABRIK 21 March 1977 [20 March 1976] 11805/77 Headings BID B2H and B2P An apparatus for cleaning fibrous suspensions consists of a vortex cleaner 10 having a downwardly tapering conical housing 14 with a dirt outlet at the lower end and an inlet 16 for suspension to be cleaned at the upper end, and of a stationary cylindrical upright screen basket 24 coaxial with, and mounted above, the housing 14 and containing a driven hollow rotor 26 which is provided on its underside with acceleration elements 52 to improve the circulation of the suspension flowing into the cleaner housing 14, the rotor comprising a closed casing 32 having in its lower face 36 an inlet opening 40 communicating with the interior of the cleaner housing and outlet openings 42 in its peripheral surface, and a seal 50 being provided between the lower face 36 of the rotor and the screen basket 24. In operation, the cleaned fibrous suspension from the vortex cleaner 10 enters the rotor 26. An accepts fraction of the suspension passes through the screen basket 24 and leaves through an outlet 60 while a rejects fraction flows upwards through the annular space 54 into a compartment 62 from which it may be continuously or intermittently discharged through a pipe nozzle 64. The rotor may be provided at its periphery with slightly inclined projecting strips (70), Figs. 2 and 3 (not shown) which provide a conveying effect as well as pressure pulses to prevent clogging of the openings of the screen basket.
Patent GB-982578-A (GB)
Title: Improvements relating to centripetal turbines
IPC: H02P23/00
Filed: 1961-03-30
Abstract: 982,578. Turbines. GARRETT CORPORATION. March 30, 1961 [April 4, 1960], No. 11814/61. Heading FIT. [Also in Division G3]  A centripetal turbine has blades 6 forming extensions of blades 3 on wheel 2, a vane 13 being pivoted to an angular position determined by the absolute velocity of the fluid stream passing through outlet port 12. The vane is coupled to an element 15 forming part of resistance bridge 17. As the speed of the turbine rotor increases, the output of the bridge circuit is modified and motor 27 moves valve 28 to restrict the inlet flow to the turbine. Decrease in speed causes the motor to open the valve. The setting of the valve for a given position of the vane is adjusted by resistor 18. In a modification, overspeeding of the turbine is prevented by a number of vanes associated with adjustable stops. When the speed-limit is reached, the vanes engage the stops to restrict the fluid flow and prevent further increase of speed, Fig. 3 (not shown).
Patent GB-1285158-A (GB)
Title: Manual release mechanism for emergency and parking brake systems
IPC: B60T17/08
Filed: 1971-04-28
Abstract: 1285158 Spring applied, fluid pressure released brakes SOC ANON DBA 28 April 1971 [5 May 1970 1 June 1970 2 March 1971] 11815/71 Headings F2E and F2F In a spring-applied fluid pressure released braking arrangement including a cylinder 1 and a piston 2 urged by a spring 3 and having a rod 15 connected to a brake control lever 6, the brake may be manually released in the absence of fluid pressure by moving the sheath 7, in which the cable slides, by a mechanism 10 which includes a socket secured to the cylinder and a plug movable therein and secured to the sheath. The plug may have projections which engage slots or ribs in the sheath release being effected by rotation of the plug.
Patent GB-305413-A (GB)
Title: Compression rail joint spring
IPC: E01B11/36
Filed: 1928-04-23
Abstract: 305,413. Loutrel, C. H. April 23, 1928. Washers.-A spring washer for use with the fish plates 3 and bolts of rail joints comprises a body portion 7 pierced to accommodate the bolt 4 and formed to seat against the fish plate and has its extremities 10 curved around and bent inwardly, to be parallel with the body portion 7. The inwardly bent extremities may be bent on themselves to extend outwardly as shown in Fig. 6 at 13. The curved portions 9 are thickened to take the stress when the springs are deformed by the outward movement of the rail and fish plate due to passage of a load. Fig. 11 shows a form with additional curved sections 15 which when the washer is compressed are bent down on the fish plate and the bows thereof serve to take part of the stress from the curved portions 9.