baber/WOPTO huggingface dataset:
Patent GB-1201683-A (GB)
Title: Method of preparing rawhide
IPC: C14C13/00
Filed: 1968-05-31
Abstract: 1,201,683. Rawhide. SUPERIOR PET PRODUCTS Inc. May 31, 1968, No.26227/68. Heading C6C. A method of making rawhide for simulated animal bones and the like from unhaired, at least partly delimed, and untanned hides having a pH of 9-11 comprises the steps of washing the hides to remove enzymes, bleaching the washed hides in hydrogen peroxide, and thereafter wringing out the bleached hides. After treatment the pH value is arranged to remain not less than 9. To ensure this washing is carried out in a drum rotating at 12 r.p.m. for not more than 30 minutes to one hour at 60 to 70 degrees fahrenheit which is sufficient to remove the enzymes so that the hide does not deteriorate during the bleaching. The latter step is carried out in two stages, viz: four hours in a drum during which the drum is rotated every 14-15 minutes for five turns at 12 r.p.m., followed by a further four hours giving the same intermittent rotation to the drum but at an elevated temperature of 85 to 110 degrees fahrenheit. The hydrogen peroxide concentration is preferably 17% by weight of water in the drum.
Patent GB-494607-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K21/20
Filed: 1937-07-21
Abstract: 494,607. Rotary converters ; inductor alternators. BRITISH THOMSON-HOUSTON CO., Ltd. July 21, 1937, No. 20247. Convention date, July 22, 1936. [Class 35] A dynamo-electric machine comprising a stator with an alternating- current winding and a rotor giving a unidirectional radial field is arranged as a generator for interrupted alternating current, e.g. a 60 cycle current with every other cycle or every other pair of cycles omitted ; two or more such machines may be combined to give a special wave form, or such a machine may be driven by a machine of the same type arranged as a motor. Figs. 1, 2 and 3 show an arrangement in which the radial field is supplied by a cylindrical magnet 11, of material such as is described in Specification 424,746, [Group II], mounted on a non-magnetic shaft 15. To its ends are secured rotor elements 13, 14 provided respectively with two and one salient poles extending over a sixth of the circumference. The stators 16, 17 are each provided with six poles, two of which are wound as shown. The stators are connected by a yoke 18. The thicknesses of the various members and the windings on the rotor poles are so arranged that the voltages produced in the two windings are equal. In a modification the stator 17 is replaced by a twelve-pole stator with a two-phase winding and the rotor 14 by a three pole rotor with a squirrel-cage winding for starting, as described in Specification 494,606. The rotor 13 is also replaced by a rotor with one pole extending over a sixth of its circumference and one pole extending over half.
Patent GB-383305-A (GB)
Title: Improvements in and relating to portable scaffolding and like elevated-platform devices
IPC: E04G1/22
Filed: 1931-07-15
Abstract: 383,305. Wheeled scaffolding. TAMINI, M., 2, Piazza Melozzo da forli, Milan, Italy. July 15, 1931, No. 20298. Convention date, Jan. 15. [Class 20 (ii).] A portable scaffolding comprises a wheeled vehicle A, Fig. 2, having a tower B which carries a universal joint M for supporting the lowermost element of a non-rotatable hydraulically - operated telescopic column C, the uppermost element C<1> of which carries, and supports by guy ropes, an extensible rotatable platform D which is balanced by a winch E and cage G and which is formed with projections K for engaging with a window sill or like anchorage of a building. The platform D may consist of frames slidable on guide rails or of telescopic tubes such as constitute the column C. One or two ropes F, F<1>, capable of being tightened, may be connected to the platform D and to the vehicle A to provide an additional balancing means for the platform. Alternatively, the platform may be made to extend in opposite directions so that one part balances the other, or again, a movable weight may be provided. Electric controls for controlling the various movements of the structure may be provided on the platform D. The motor of the vehicle A may be used for driving the hydraulic pump by which the column C is extended, and is used also to charge a battery which is in circuit with the electric controls.
Patent GB-1514465-A (GB)
Title: Pipe assemblies
IPC: F16L5/06
Filed: 1975-05-15
Abstract: 1514465 Stuffing box joints R W G LANE and D R HUDSON 15 May 1975 [31 May 1974] 20534/75 Divided out of 1514464 Heading F2G A pipe P<SP>1</SP> is selaed into an aperture in a wall W<SP>1</SP> by a joint comprising a cover 15 welded to the pipe and spanning the aperture and a washer-like plate 16 freely movable along the pipe by means of a sleeve 18 and a nut and washer assembly 19 on the pipe, mastic 20 being trapped in the space between the plate 16 and cover 15. The plate 16 has sufficient clearance for the escape of excess mastic. The plate 16 and sleeve 18 may be combined in a single item which may include the nut and washer assembly 19. Spacers may be used with the nut and washer assembly 19 or may combine with said assembly to form a single item.
Patent GB-603083-A (GB)
Title: Method and apparatus for treating liquid which has been used as a coolant in an abrading operation on magnetic material
IPC: B03C1/12
Filed: 1944-10-24
Abstract: 6 0 3,0 8 3. Rotary filters. BARNES DRILL CO. Oct. 24, 1945, Nos. 20629 and 20630. Convention dates, Oct. 22, 1943, and June 17, 1944. [Class 46] [Also in Group II] In a method of treating liquid which has been used as a coolant in an abrading operation on magnetic material and which has both magnetic and non-magnetic material particles entrained therein, a stream of the liquid is subjected to a magnetic field to collect the magnetic particles in a mass or masses and the non-magnetic particles are filtered out by causing relative movement between the liquid and the magnetic mass or masses. As shown, the magnetic particles are continuously collected as masses 55 at the elongated holes 32 of equally spaced magnets 31 mounted on the inner side of a brass skin 25 of a slowly rotating drum 14 from the liquid which flows through a narrowing channel 13, the masses 55 serving as pads to filter out the non-magnetic particles. In a modification Fig. 7 the magnets 92 either permanent or electromagnets may be mounted beneath a trough 90 and grid bars 95 suspended from a hinged lid 97 concentrate the magnetic field and define the stream of liquid, the separator in this case being intermittent.
Patent GB-223691-A (GB)
Title: Improvements in reversing gear, more especially intended for use in connection with marine engines
IPC: F16H3/60
Filed: 1923-08-14
Abstract: 223,691. Parsons, H. Aug. 14, 1923. Driving-arrangements for screw propellers. Reversing-gearing suitable for marine propulsion is arranged so that the thrust of the direct-drive clutch spring 16 is taken by the thrust bearing 32 of the propeller shaft 5. Upon the engine shaft 1 are secured a fly-wheel 2 with friction clutch surface 2<1>, and one side gear 12 of an epicyclic train. The other side gear 13 is secured to the shaft 6. In feathered connection 15 with the loose carrier 7 of planet gears 10 there slides a casing 5, which carries the direct-driving clutch member 3. When the spring 16 is allowed to act, it thrusts the casing 5 to the left, bringing the clutch members 3, 2<1> into full engagement, so that the gearing turns solid for the forward drive. Reversed driving is effected by forcing a. forked wedge 18 between the casing 5 and the bearing 32 and applying a brake 21 to the declutched casing 5. The drive then passes through the train 12, 10, 13, the carrier 7 being fixed. The wedge 18 and brake 21 are operated together by a lever 23 in turn actuated by a screw 24 and handwheel. When reducing-gearing is required, it may be combined as described in Specification 180,019.
Patent GB-317040-A (GB)
Title: Improvements in the manufacture of sodium sulphite or bisulphite solutions
IPC: C01B17/62
Filed: 1929-07-05
Abstract: 317,040. Zellstofffabrik Waldhof, and Faust, O. Aug. 9, 1928, [Convention date]. Alkali-metal compounds, recovering from liquors containing organic matters.-Waste soda lyes from the mercerizing or other process in making artificial silk, or from the boiling of wood fibre or cellulose are treated with sulphur dioxide or sulphurous acid. Organic substances are precipitated and a solution of sodium sulphite or bisulphite remains.
Patent GB-1034744-A (GB)
Title: Improvements in or relating to methods of freeze-drying material, particularly foodstuff material
Inventor: THOMPSON HUGH PERCY
IPC: A23B4/037
Filed: 1964-05-19
Abstract: 1,034,744. Freeze drying. VICKERS Ltd. May 7, 1965 [May 19, 1964], No. 20691/64. Heading F4G. [Also in Division A2] A method of freeze-drying material, e.g. leafy vegetable, comprises placing in a container or tray 1 frozen material to be dried, subjecting the frozen material to vacuum produced in a chamber (not shown), and sublimating the ice in the material by heat from electrically or fluid-heated heaters 6, 7 and adjusting the extent to which the evolved water vapour flows from the container by throttling the flow to vary the thermal conductivity of the water vapour surrounding the material. The throttling step may be effected by relative movement of the heater 7 and the upstanding flanges 5 which form the sides of the container, which sides may be imperforate as shown, or perforated when the heater 7 can be brought into direct contact with the tray. Measuring devices may automatically control the temperature and movement of the heaters. In a modification, the heater plates are not movable and a throttling valve is formed by a shutter mounted in the connection between the chamber and a vacuum-tight compartment containing condenser plates.
Patent GB-996890-A (GB)
Title: Internal combustion engine fuel injection nozzles
Inventor: HALL GEORGE WILLIAM
IPC: F02M61/16
Filed: 1963-05-24
Abstract: 996,890. Making nozzles. C.A.V. Ltd. May 12, 1964 [May 20, 1963], No. 20769/63. Heading B3A. A method of making an I.C. engine liquid fuel injection nozzle comprises compacting metal powder in dies having a cavity longer than that of the body length 1 and oversize in the region of the tip 2, heating the compacted powder to 950‹ C. and repressing it in dies defining the required body size so that the tip is compacted to a greater extent than the rest of the body and re-heating the compact to 1120‹ C. After cooling the compact is drilled and machined to its required shape.
Patent GB-1493009-A (GB)
Title: Apparatus for the continuous heating or heating and cooling of coverings of longitudinally extended products
IPC: B29C48/00
Filed: 1975-05-16
Abstract: 1493009 Apparatus for continuous vulcanization KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 16 May 1975 [1 July 1974] 20820/75 Heading C3E [Also in Division B5] Apparatus for the continuous heating or heating and cooling of extruded coverings composed of thermally cross-linkable materials, which coverings form part of longitudinally extended products, includes extrusion means leading to heating or heating and cooling cooling sections separated by a productdeflecting unit, whereby the direction of advance of the product is reversed or re-reversed, wherein the deflecting unit comprises one or more deflecting wheels or rollers, which, or at least one of which, is adapted to be driven and thereby to transmit a drive to that portion of the respective product which for the time being is in contact with it. Various assemblies of deflecting wheels are described.
Patent GB-320858-A (GB)
Title: Improvements in or relating to apparatus for spinning artificial silk
IPC: H01H37/76
Filed: 1928-07-18
Abstract: 320,858. Wade, H., (Syntheta Akt.-Ges.). July 18, 1928. Apparatus for making filaments.-A pump assemblage of the type suitable for supplying spinning solution to the spinning nozzles of artificial silk spinning apparatus, wherein the pump casing has outlet and inlet ports arranged in opposite sides and is pivotally mounted in a cradle comprising two spaced arms, one of which carries a pipe mounted so that it is capable of axial movement to engage the pump casing and communicate with one of the ports and the other of which carries a duct mounted to communicate with the other port, comprises means, for example a key and key-way for the purpose of positively holding the said pipe against rotation during its axial movement. In the apparatus shown, the pump 1, preferably of the gear wheel type, comprises a casing having an inlet port 2 and an outlet port 3 situated on opposite sides. The cradle 5 comprises two upstanding arms 6 and 7, the former of which has slidably mounted in it a movable outlet conduit 9, carrying at its inner end a nipple 10 and prevented from rotating in the abutment by the key 11 and heyway 12, whilst the latter carries a fixed inlet nipple 8, which projects into the gap towards the other abutment. The outlet conduit 9 projects on either side of its abutment and is movable towards and away from the abutment by means of a nut 13, which isthreaded on the inner end of the conduit and engages with the inner face of the abutment 6. Both nipples have spherical faces which engage spherical seats in the inlet and outlet ports of the pump casing. An elbow pipe 14 is rotatably secured by a union to the outer end of the outlet conduit 9. The union is formed by a conical part 16, which engages a conical face 17 and carries a shoulder 18 engaged by an inwardly directed flange 19 in a nut 15. This nut engages a serew-threaded portion 20 of the elbow pipe whereby the two surfaces can be drawn together. The outer extremity of the projecting outlet conduit is reduced in diameter at 21 and is located in a bore in the elbow pipe provided with a cleaning hole 22 narmally closed by a screw plug 23. The abutment which carries the inlet nipple is formed with an inlet conduit 24, which extends through the bottom of the cradle and is provided with a cock 26 and nipple 25. The lower face of the cradle is shaped to engage the manifold 27, which supplies spinning solution to the pump and is provided with a number of holes which engage the nipples 25. The cradle is attached to the manifold by a clamp 28. The pump-spindle 4 has secured to it a pinion wheel 31, which may be engaged with a gear wheel 32 carried by the main driving shaft and is swung out of engagement by rotating the pump casing about thespherical nipples 8 and 10.
Patent GB-959770-A (GB)
Title: Selective hydrogenation catalyst and the production thereof
IPC: B01J23/883
Filed: 1960-06-14
Abstract: The selective hydrogenation of acetylenic compounds in the presence of olefins is effected by contacting a mixture of hydrogen, acetylene and olefins with a catalyst (optionally prereduced) comprising 0.1-2.0% CoO, 0.1-7.0% NiO and 1.5-5% MoO3 supported on a carrier comprising a major proportion of alphaalumina, the carrier surface area being not more than 10 m2/g.  The carrier may comprise additionally up to 15% silica (e.g. 11%), calcium aluminate (e.g. 35%) and clay (e.g. 5%), as well as small amounts of Fe, Na, K, Mg or Ti oxides. Specifications 950,952 and 959,769 are referred to.ALSO:A catalyst, which upon reduction is suitable for selective hydrogenation of acetylenic compounds in presence of olefins, comprises 0,1-2,0% CoO, 0,1-7,0% NiO and 1,5-5,0% MoO3 supported on a carrier comprising a major proportion of alpha-alumina, the carrier surface area being not more than 10 m.2/g.  Up to 15% of the carrier may be silica.  Specified carriers are (a) alpha-alumina spheres of surface area below 1 m.2/g. and containing 11% silica and 0,1-0,3% of Fe, Mg, Ca, Na, K, and Ti oxides; (b) pellets of 60% alpha-alumina, 35% calcium aluminate (containing Si, Fe, Na, and Mg oxides) and 5% clay.  Specifications 950,952 and 959,769 are referred to.
Patent GB-792077-A (GB)
Title: Improvements in and relating to smoke eliminators
IPC: B01D47/02
Filed: 1956-07-06
Abstract: 792,077. Purifying smoke. FORREST, J. H. July 6, 1956, No. 20946/56. Class 55 (2). Apparatus for purifying smoke comprises concentric cylinders 7 and 8, the outer cylinder 7 being closed at its upper end and provided at its lower end with a dish 14 having a central opening 16 sealed in a body of water in a vessel 1, while the inner cylinder 8 has its lower end above the level of water in the vessel 1 and at its upper end extends through the sealed end of the cylinder 7 into an enlarged chamber 20, the arrangement being such that a fan 24 draws smoke through an inlet 17 to pass downwardly through the cylinder 7, strike the water in the dish 14 before passing up the cylinder 8. A pipe 26 returns any water collecting in the chamber 20 to the vessel 1 and a water jet 28 may be arranged to cause the water in the vessel 1 to rotate.
Patent GB-139727-A (GB)
Title: Improvements in leaf-turners
IPC: B42D9/06
Filed: 1919-08-26
Abstract: 139,727. Frey, W. Aug. 26, 1919. Leaf-turners.-A leaf-turner having a turning- arm which operates the leaves in succession is provided with means for bulging the leaves for engagement with the fork of the turning-arm. Fig. 10 shows, in plan, a turning-arm d, and a second arm c pivoted to the forked upper end of the operating-spindle. The second arm c carries a spring-pressed pin i and a pivoted arm h between which the leaf is bulged by pressing the arms c, d towards the leaf. The fork n on the leaf-turning arm d is normally held above the leaves by an arm l, which moves with the bulging- arm h to allow the fork to drop into engagement with the bulged part of a leaf. While the leaf is being turned, the arm d rests on a projection o on the arm c. Before returning to turn another leaf, the arms c, d are acted upon by inclined projections t, r to release them from the leaf turned and restore them to their initial relative positions.
Patent GB-285928-A (GB)
Title: Improvements in apparatus for extracting vapour, particles and the like from gases
IPC: F22B37/26
Filed: 1926-08-26
Abstract: 285,928. Shannon, D. M. Aug. 26, 1926. Density separators; strainers. - Vapours or impurities are separated from air or gas by inducing or driving the air or gases through a container in which are located cooling or condensing surfaces and straining gauzes. In the arrangement shown in Fig. 1, the casing A contains the condensing and straining elements B<1>, B<2>, B<3>. The outlet D is arranged in the pipe F so that the flow of gases in the pipe F induces a flow of gas and vapour through the pipe C a,nd cylinder A. The pipe C may be connected to an engine crank chamber or other vessel containing gases impregnated with vapour to be extracted. The oil or other condensed vapour is condensed and with other impurities is intercepted by the elements B<1>, B<2>, B<3> and is drained away through the pipe G. In a modified form of apparatus the mixture of gas and vapour is drawn through the casing A by a fan driven by a turbine rotated by the stream of gas in the pipe F. In a further modification, the mixture passes through the space between a rotary cone M, Fig. 3, and a fixed water-cooled part L. A turbine wheel H<2> in the pipe F operates the cone M and the fan N which induces the flow of the mixture. The vapour is separated and condensed and leaves the apparatus by the pipe G, while the gas leaves by the pipe O. The apparatus may have a vertical axis and the inner conical part may be stationary while, the outer part rotates. In this case the outer part may have perforated serrations through which liquid is discharged. The conical parts may be replaced by discs.
Patent GB-945441-A (GB)
Title: Stabilization of polypropylene against degradative deterioration on ageing
IPC: C08K5/372
Filed: 1961-06-09
Abstract: 945,441. Stabilizing polypropylene. ARGUS CHEMICAL CORPORATION. June 9, 1961 [June 15, 1960], No. 20991/61. Heading C3P. Polypropylene is stabilized with a combination of an organic phenol, an organic phosphite triester, an ester of thiodipropionic acid and optionally a salt of an organic acid and a Group II metal. The phenol may be monohydric or polyhydric and may be in the form of a phenate; those specified include bis-phenols and thio-bisphenols. The phosphite may be of formula (RA)  3 P in which A is O or S or wherein both O and S may be present in the same molecule. The ester of thiodipropionic acid may be a di-ester, may contain only one ester group, may contain a polymeric chain of ester units, or may also be a salt of a Group II metal (e.g. Zn, Ca, Cd, Ba, Mg or Sr). The optional salt of an organic acid is preferably that of Zn, Ca, Cd, Ba, Mg or Sr. Stabilization of propylene/ethylene copolymers or of polypropylene/polyethylene compositions is also within the scope of the invention. Many possible stabilizer components are listed.
Patent GB-225263-A (GB)
Title: Process for obtaining nitric oxide
IPC: C01B21/32
Filed: 1923-08-18
Abstract: 225,263. Redfern, C. G., (Pintsch Akt.- Ges., J.). Aug. 18, 1923. Gas-producing furnaces. - Nitric oxide is produced by burning combustible gas with air under approximately atmospheric pressure, the combustible gas or the air or both being preheated to such an extent that the necessary high temperature is obtained by the combustion, and the gases of combustion are then cooled suddenly upon the surface of a steam boiler. The apparatus described comprises heaters 1, 2 for heating the fuel gas and 3, 4 for heating, the air. Gas is supplied at 15 and air at 16. The mixture is burnt in one pair of chambers, for instance 1 and 3, the gases of combustion being discharged to waste by exits 5, 6. When these chambers are hot enough, the necessary valves are operated so that gas and air pass through the heaters 3 and 1 respectively and thence through valves 17, 19 to a burner 21, the gases burning in a chamber containing a water-tube boiler 22. While this is taking place, the other pair of heaters 2, 4 are being heated by burning gas in them, the gases of combustion being discharged through the outlets 5, 6 and the two pairs of heaters work alternately. The temperature of the burning gases is much higher than that used in ordinary boilers and the water may be circulated by means of a pump d, Fig. 2, upon a pipe a containing the upper and lower chambers b, c of the boiler.
Patent GB-516326-A (GB)
Title: Improvements in magnetically operated electric contactor switches
IPC: H01H50/54
Filed: 1938-07-16
Abstract: 516,326. Electromagnetic switches. HEATON, F. July 16, 1938, No. 21127. [Class 38 (v)] In an electromagnetically-operated contactor switch, current is led to the switch arms C through spherical or cylindrical surfaces c<6>, a<3> situated preferably near the pivotal axis of the arms. The surface c' is carried by a contact arm and the surface a<3> by a spring a<2> connected to a terminal. In the form shown, the magnet F attracts an armature E on a carrier for four switch arms. The carrier is pivoted at D and each switch arm has a contact c<5> adapted to be moved into and out of engagement with a fixed contact a<6>. In a modification there are ten switch arms. Either construction may be used for three-phase current, one of the switch arms serving to close a maintaining circuit for the electromagnet, and the other three, or groups of three in parallel, serving to close the threephase circuit.