baber/WOPTO huggingface dataset:
Patent GB-833808-A (GB)
Title: Production of beryllium fluoride
Inventor: GOUGH ALAN RAYMOND SIMMONDS
IPC: C01F3/00
Filed: 1957-07-12
Abstract: Beryllium fluoride is obtained and by-product ammonium fluoride recovered, when ammonium beryllium fluoride is added to beryllium fluoride maintained in the liquid phase by the passage of an electric current therethrough.  In the example, a graphite vessel has a roof through which pass two graphite electrodes and a conduit for admission of beryllium fluoride and ammonium beryllium fluoride, and in a side wall there are provided conduits for removal of ammonium fluoride and molten beryllium fluoride and also graphite resistors above the intended level of the molten fluoride which serve to melt the beryllium fluoride initially by radiant heat.  An alternating current of 600 amps. at 30 volts is then applied to the liquid through the electrodes and ammonium beryllium fluoride added at a rate such as to maintain the temperature at not above 950 DEG  C.
Patent GB-263743-A (GB)
Title: Improvements in rotary casting of metals
IPC: B22D13/10
Filed: 1926-09-09
Abstract: 263,743. Dale, R. B. Dec. 23, 1925, [Convention date]. Casting - machines; metalpouring; moulds; casting processes.-In rotary casting, the rate at which the mould abstracts heat from the casting is varied by bringing a liquid and a vapour alternately into contact with the outside of the mould. The pressure of the vapour may also be varied. The mould comprises walls 15, 15<a> welded to a closing plate 20, Fig. 4, and to a heat insulated jacket 16, Fig. 2, this being mounted in a bearing 22 so as to connect to a valve controlled passage 23 which serves to admit vapour and to exhaust liquid and vapour. Spiral blades 29 conduct any liquid in the mould, when rotating slowly, to this passage 23. Liquid may be sprayed on the mould by spiral pipes 17 supported by the blades 29 and connected by a joint 24 to a valve controlled passage 28. The steel or other metal to be cast. is introduced by a funnel 10, Fig. 1, mounted to rotate about a vertical axis on a truck 12. Mercury may be employed as both the liquid and the vapour. As the mould commences to rotate any liquid left from a previous operation is removed by the blades 29, then vapour is admitted at a pressure required to raise the temperature of the mould to say 1200‹ F., the maximum speed of rotation having already been attained. The charge of molten metal is then introduced, spread, and slowly cooled at the desired rate and to the desired critical temperature which will ensure the desired quality in the casting in spite of the final rapid cooling. This result is attained by reducing the vapour pressure directly after pouring and replacing the vapour by cold liquid when the critical temperature has been reached. After this temperature also the speed of rotation is gradually reduced until, as the casting approaches the extraction temperature, say 800‹ F., liquid mercury is removed by the blades 29.
Patent GB-734758-A (GB)
Title: Improvement in bellows formation
IPC: F16J3/04
Filed: 1951-09-24
Abstract: 734,758. Bellows. PETERS, M. F. Sept. 24, 1951 [Jan. 2, 1951], No. 22260/51. Class 122 (5). A bellows is composed of elements comprising an annular metal membrane with co-planar inner and outer peripheral margins 3, 4 integral with a curved portion 1 of curvature such that, in any plane of intersection, only one point has tangency with any plane parallel to the plane of the margins. The curved surface 1 may be unsymmetrical and, to increase the bending resistance, the width of either or both the curved surface and the margins may be varied along the length of the bellows or additional material may be interposed between any two adjacent margins. Specification 722,019, [Group XXII], is referred to.
Patent GB-1209007-A (GB)
Title: Improvements in or relating to road-tamping appliances
IPC: E02D3/068
Filed: 1969-05-01
Abstract: 1,209,007. Vibratory tampers. WACKERWERKE K.G. 1 May, 1969 [14 May, 1968], No. 22261/69. Heading E1G. A telesoopic control handle enabling a selfadvancing vibratory tamper (not shown) to be used in'deep trenches comprises an outer tube 2 rigid with a part I resiliently coupled to the tamper body, and an inner tube 3 carrying the handle 9 and its regulating or reversing controls 8, 11, the two tubes being releasably locked together by turning a central spindle 4 actuating an axially-compressible friction clamp 5-6-7. The clamp comprises upper and lower rubber &c or conical-sleeve elements 7 spaced by a sleeve 6 and cooperating with a reaction shoulder 13 and an axiallymovable non-rotatable bush 5. As shown, the spindle 4 has a screw thread connection with the bush 5 and carries an actuating head 10. In a modification, Fig. 2 (not shown), the spindle (4) is turned by the handle (9) itself and actuates the bush (5) through a transverse pin (12) and cam surface.
Patent GB-180252-A (GB)
Title: Improvements in and relating to ash trays formed with cigarette extinguishing devices
IPC: A24F19/00
Filed: 1921-08-22
Abstract: 180,252. Hipple, W. H. J. Aug. 22, 1921. Ash-trays.-A tray and match-box holder are formed in one piece of earthenware or other material with tapered cigarette-extinguishing sockets 4 in an overhanging flange 2, grooves 6 for receiving cigars and the match-box holder 8 with openings 9 and an upward projection 10.
Patent GB-295034-A (GB)
Title: Improvements in or connected with film propelling mechanism
IPC: G03B31/02
Filed: 1928-08-01
Abstract: 295,034. De Forest Phonofilms, Ltd., (Assignees of Halpenny, R. R.). Aug. 1, 1928. [A Specification was laid open to inspection under Sect. 91. of the Acts Aug. 7, 1928]. Optical apparatus ; sound-reproducing apparatus associated with kinematographs. - Relates to mechanism for feeding a film at a constant speed past a light slit, particularly in a " talking motion picture " apparatus. According to the invention, in addition to sprocket-wheels by which the film. is moved, a weighted roller is provided, which is located near the slit, the said roller being driven by the film which is held against it by co-operating rollers, and a gravity-controlled idler bears against a loop in the film to maintain a constant tension in the part of the film passing the light slit. The invention is shown as applied to a sound-reproducing and picture-projecting apparatus. Continuously moving sprocket wheels 4, 21, geared together, feed the film 2 from a spool 1 through the slit-block 7 of a photo-electric sound-reproducing device, a small loop being formed at A. The film, after passing the slit, drives a friction roller 27, on the shaft of which a fly-wheel 28 is mounted, spring-actuated rollers 29 holding the film against the roller 27. A roller 25 on a weighted arm 23 bears against the film as shown, to maintain it in constant tension. After leaving the sprocket 21, the film forms a large loop B, and is then fed past the gate 31 of a picture-projector by an intermittently driven sprocket 32. Specification 249,627 is referred to.
Patent GB-1303419-A (GB)
IPC: E21D9/06
Filed: 1971-04-19
Abstract: 1303419 Tunnels; tunnel shuttering J KRISMER JNR 19 April 1971 [25 Feb 1970] 22396/ 71 Headings E1F and E1S A tunnelling shield has an enlarged leading end carrying a blade 4 and forming a step 5 having cavities 8 housing bags 9 which are inflatable to engage previously cast and set tunnel lining to propel the shield forwardly. The shield body 2 is slightly tapered and circular in section, but the section may be oval or elliptical. The shield tows a thinner cylinder and a protective apron is suspended adjacent the joint between the shield and cylinder. After the shield has been advanced, the void between the set lining and the step is filled with concrete supplied through pipes 6, which may be heated, air or water also being supplied by pipes 20 to clean the outlets of pipes 6. Probes for consolidation of the concrete may be introduced through holes having axes 27, and reinforcing may be passed into the lining through holes 26. Dry concrete mix may be supplied through the tubes 6 and water may be supplied through further heated pipes opening into the void adjacent the holes 26. The front of the body may be plugged with cement when the shield penetrates water-bearing ground, the plug moving rearwardly relative to the body as the shield is advanced. The blade is formed in segments and its cutting edge may be serrated. The body is formed in segments to permit dismantling in blind tunnels. Sections of concrete lining may be separated by packing supplied through holes 25.
Patent GB-593068-A (GB)
Title: Improvements in corrugated tube
IPC: F16L11/02
Filed: 1945-08-31
Abstract: 593,068. Moulding rubber tubes. UNITED STATES RUBBER CO. Aug. 31, 1945, No. 22437. Convention date, Oct. 3, 1944. [Class 87 (ii)] [Also in Group XXVIII] A method of making a flexible corrugated tube, slit along its length, and provided with flanges on each side of the slit, consists in forming a plain tube from a sheet of fabric coated and/or impregnated with a mouldable composition so as to have a lap joint 39, Fig. 6, affixing flange forming angle strips 26, 27, with reinforcing plies 29 along each side of the joint and finally corrugating the tube. The latter is done by placing the tube on a corrugated rubber mandrel 40, Fig. 9, one end of which is held to the rod 41 by means of the straps 44, the other end having a ring 46 which can be attached to various parts of the rod by passing a pin 49 through corresponding holes in ring and rod. The mandrel, originally fully extended, is allowed to contract by removing the locking pin so that corrugations are formed in the tube corresponding to those in the mandrel which is then left in the position shown until the tube has set and can be removed without damage to the corrugations. It is finally placed on another rod fitted with means for compressing the corrugations still closer together and given a permanent set, such as by vulcanisation if the tube is of a rubber composition ; the wall of the tube is then slit along its length between the flanges.
Patent GB-945501-A (GB)
Title: New steroid compounds and processes for their preparation
IPC: C07J9/00
Filed: 1960-06-27
Abstract: The invention comprises 3a -hydroxy-20-bis-hydroxymethylene -5b - pregnan -11- one and a process for the preparation thereof in which 3a -acetoxy -20- formyl -5b - pregnan -11- one is condensed with formaldehyde, in an inert organic solvent and in the presence of an hydroxide or carbonate of an alkali or alkaline earth metal to yield the desired 3a -hydroxy-20-bis-hydroxy-methylene -5b - pregnan -11- one. The product may be isolated by precipitation with water. Specification 945,502 is referred to.
Patent GB-203502-A (GB)
Title: Improvements in and connected with teapots, and coffee, cocoa and such like jugs
IPC: A47G19/14
Filed: 1922-08-18
Abstract: 203,502. Ralley, R. P. Aug. 18, 1922. Pots.-The lid C of a tea-pot, coffee-jug, or similar vessel has a central opening for the reception of a flanged infuser E, the opening being covered by a supplementary hinged lid D. The depending flange of lid C is formed with a bayonet slot G adapted to take under a " snug " F at the back of the pot, the opposite side of the cover flange, opposite the spout B, being slotted at H to form a strainer.
Patent GB-637325-A (GB)
Title: Improvements in mechanism for imparting a variable stroke to a reciprocating member
IPC: F02M59/30
Filed: 1947-08-13
Abstract: 637,325. Cam mechanism. HOBSON, Ltd., H. M., and EDWARDS, T. Aug. 13, 1947, No. 22498. [Class 80 (iii)] [Also in Group XXVIII] In a mechanism for imparting a variable stroke to a driven reciprocating member, a fixed stroke driving member 28 and a variable stroke driven member 37 are mounted in a housing so as to reciprocate in paths inclined at an angle to each other, a stroke adjusting member 42 having thereon a surface 36 normally inclined to the path of the driving member 28 is also mounted in the housing, a roller or ball 32 contacts the driving member, the driven member and the inclined surface 36 of the stroke adjusting member and is arranged to roll along the inclined surface as the driving member reciprocates thereby imparting reciprocating movement to the driven member, and means are provided for rotating the stroke adjusting member so as to vary the inclination of its inclined surface to the path of the driving member and thereby vary the stroke of the driven member. The driving member 28 is reciprocative by a cam 27 and both it and the driven member 37 are returned by spring means 31 and 39 respectively. The roller 32 is pushed in one direction by shoulders 33 on the driving member and returned by a hook 35 on the driving member that engages a waisted portion 34 of the roller.
Patent GB-1093636-A (GB)
Title: Improvements in and relating to the production of shifted in-phase sinusoidal voltages
IPC: G09G1/12
Filed: 1965-05-27
Abstract: 1,093,636. Frequency changing. PAILLARD S.A. May 27, 1965 [June 18, 1964], No. 22550/65. Heading H2F. Each phase of a four-phase voltage of twice the frequency of a four-phase input voltage V 1 , V 2 , V 3 , V 4  is produced by selecting the appropriate peaks a, b, c, d of the input phases and combining them. The peaks are selected by diodes biased by batteries of voltage B, and the output obtained is approximately sinusoidal. Two transformers each with fourteen secondary windings, fourteen diodes and two bias batteries may be used (Fig. 3, not shown) or, if efficiency is unimportant, resistance networks and simpler transformers may be used (Figs. 4 to 9, not shown). The apparatus may supply voltages required by the typewriter typing signs defined by co-ordinates as in Specification 964,109.
Patent GB-747684-A (GB)
Title: A new or improved device for removing the top of an egg
IPC: A47G19/28
Filed: 1953-08-17
Abstract: 747,684. Eggs, opening. SANDERS, C. M., and MERCER, W. S. Nov. 12, 1954 [Aug. 17, 1953], No. 22576/53. Class 28(2). The top of an egg is cut off by a knife 9 swung in against the top between a pair of closely spaced plates I and 3 which have concentric apertures 2 and 4 the upper plate 3 having a rim 7 to retain the cut off top. The knife 9 is pivoted at 8 on one of the plates. The lower plate 1 has an abutment 12 for the thumb when the handle 6 is grasped, the cutting being done by the fingers of the other hand pressing the twisted end 10 of the knife 3 towards another finger abutment 13 on the plate 1. The knife is provided with a projecting corner 14 to pierce the shell first. The lower aperture 2 is chamfered to fit the slope of an egg.
Patent GB-1305857-A (GB)
IPC: A24C5/18
Filed: 1971-04-19
Abstract: 1305857 Winnowing cut tobacco AMF Inc 19 April 1971 [23 Feb 1970] 22584/71 Heading A2C In an apparatus for separating stems and heavy foreign matter from a stream of cut tobacco, the tobacco is fed by a conveyer belt 13 substantially tangentially to a suction backed air permeable surface of a rotating drum 12 to which the tobacco is drawn while stems &c fall within a hopper-shaped chamber 1 against an air stream, which completes the separation, via an air lock 14 into a manifold 15. Air is directed into the chamber 1 through a duct 11 and a grate 4 of adjustable louvres 104. Pivotable walls 3, 6, 9 enable the sizes of the throat of the chamber 1 and the duct 11 to be adjusted.
Patent GB-1428417-A (GB)
Title: Revolving cock -valve- for steam oil and air with self-adjusting  and non sticking cylindrical plug
IPC: F16K5/18
Filed: 1973-05-11
Abstract: 1428417 Valves C MANOS 11 May 1973 [12 May 1972 12 Jan 1973] 22589/73 Heading F2V The closure member of a rotatable cock stop comprises a two-part hollow cylindrical body 1 with opposed openings, the division into two parts being through the openings. The two parts are located in a cylindrical chamber in the body 12 of the valve, held against the walls of the chamber by spring means disposed between the two parts, and connected by a bifurcated shaft 5 to a handle. The spring means may comprise helical spring (11), Fig. 3 (not shown), disposed in holes (10) in the two parts or may be spring rings 9 fitted into grooves 8 in the two parts.
Patent GB-471138-A (GB)
Title: Improvements in and relating to wrapping machines
IPC: B65B11/22
Filed: 1936-08-17
Abstract: 471,138. Wrapping-machines. PACKAGE MACHINERY CO. Aug. 17, 1936, No. 22646. Convention date, Oct. 1, 1935. [Class 94 (i)] In a wrapping-machine of the kind having a folding box, an elevator for raising an article and wrapper into the folding box, in which it is retained by spring means when the elevator falls, the spring means moves the article towards a shoulder engageable below the article when the article has been fully elevated into the folding box. As shown, the articles a are fed by a belt 23, Fig. 1, over a plate 22, and the endmost is raised by an elevator 29 into a folding bar, carrying a wrapper w with it. A depending skirt 30 on the elevator stops the article feed during this action. The raised article is received between a spring pressed plate 40, and a fixed plate 41, Figs. 1 and 6, which fold the wrapper down the two sides. The plate 40 is formed as shown in Fig. 4, with a T-shaped upper extension 40<1> and is urged towards the article by three springs 43, 44. When the article is fully raised, the extension 40<1> presses the article to the right against a resiliently mounted pivoted piece 46, having a notch 48 which engages the bottom right-hand corner of the article. The force of the spring 44 is sufficient to move the article a short distance on to the floor 50 of the delivery channel. The elevator now falls, leaving the article supported in its uppermost position. The article is carried to the right, Fig. 1, by a pusher 55, which moves with a bottom folder 74 and a top plate 70. The bottom folder 74 passes on each side of the extension 40<1> as shown in Fig. 4, and moves at a faster rate than the pusher 55 and the plate 70 at the beginning of the operation. Inclined folders 90, 91, 92 complete the end folds in a conventional manner. The parts of the machine are adjustable to accommodate different sizes of article. The folding channel may be removed bodily and replaced by others of different sizes, being provided with lugs 85 and dowels 87 for this purpose. Adhesive is applied to the underside of the lower end flaps of the package by spaced rolls 95 rotating in troughs 96. The rolls and the troughs are adjustable both laterally and longitudinally. The lateral adjustment is obtained by securing each trough to a cross-bar 99 by a set screw 98. The longitudinal adjustment is for the purpose of ensuring that, during each period of rest in the intermittent feed of the articles, the rolls 95 lie between the flaps, to avoid too long a contact. This adjustment is obtained by means of a bolt 101 passing through one of a series of holes 103 in the rail 21. A slot 102 permits a fine adjustment. The web feeding and severing mechanism is as described in Specification 471,139, [Group XVI], and the sheet feeding mechanism is similar to that described in Specification 394,192, [Group XVI].
Patent GB-324935-A (GB)
Title: Improvements in and relating to the production of dyestuff intermediates and the like
IPC: C07C51/295
Filed: 1928-08-04
Abstract: 324,935. Drescher, H. A. E., Fairweather, D. A. W., Thomas, J., and Scottish Dyes, Ltd. Aug. 4, 1928. Carboxylic acids are obtained by heating together for a short time an alkaline earth metal salt of a diarylketone carboxylic acid and an alkaline earth metal oxide or hydroxide. Substituted ketone carboxylic acids may be used for the production of substituted carboxylic acids. In examples alpha-naphthoyl-o-benzoic acid yields alpha-naphthoic and benzoic acids, and o-benzoylbenzoic acid yield two molecules of benzoic acid. Specification 289,544 is referred to.
Patent GB-196854-A (GB)
Title: Portable amusement riding device
IPC: A63G1/28
Filed: 1922-08-21
Abstract: 196,854. Uzzell, F. L. Aug. 21, 1922. Roundabouts.-In a portable amuse,- ment riding device in which a number of freely-suspended cars are revolved in a circular path and are supported on means secured to a vertical shaft, a tower is employed comprising telescoping units, the upper unit providing a bearing for the shaft. The tower is constructed of metal framework in square section and comprises an outer lower section of tapering form enclosing a parallel-sided inner section serving as a guide for the upper section, which is pyramidical except for the parallel portion which slides in the guides of the lower portion. The central vertical shaft is made in sections 28, 29, 30, connected by clutches 31, the central section 29 being removable when the tower is lowered for transport. The upper section of the tower is raised by hand winches from which cables 23 lead to pulleys 24, 25 on the lower and upper sections respectively and are secured at 26 at the top of the lower section, as shown in Fig. 2. The cars are suspended from caps 35 on the outer ends of arms 34 fixed to a socket head 32 on the shaft 28. Bracing ties 36 connect the cap 37 on the end of the shaft 28 with the caps 35. The lever tower section hinged at 49 is supported on a wagon 42, which also carries the driving mechanism. Columns 52 are placed under the corners and centre of the wagon and tilting is prevented by buttress members 53 removably secured to the columns 52 and connected by struts 57 with the tower posts 10. Tie-rods also connect the members 53 together and braces 61 may be provided between the columns 52. Bearings 72 are provided for the carsupporting shaft.
Patent GB-1123593-A (GB)
Title: Improvements in or relating to containers
Inventor: TEBBUTT CHARLES NORMAN
IPC: B65D47/12
Filed: 1965-05-28
Abstract: 1,123,593. Making hollowware; stamping. METAL BOX CO. Ltd. 18 April, 1966 [28 May, 1965], No. 22765/65. Headings B3A and B3Q. [Also in Divisions B8 and F4] A container body formed with an annular bead 18 is engaged in a supporting tool 19 before a plastics end member 1 is inserted and a reciprocable tool 21 lowered to turn over the upper end of the body about a flange on the end member, thereby forming a gas-tight seal. The container body may be deep drawn or impact extruded from aluminium. The bead 18 may be flattened subsequently by applying pressure to the end member 1 after the tool 19 is removed.
Patent GB-975766-A (GB)
Title: Improvements relating to contact springsets
Inventor: JONES RAYMOND DENNIS
IPC: H01H50/56
Filed: 1962-06-14
Abstract: 975,766. Contact-members for switches; terminal boards and blocks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 12, 1963 [June 14, 1962], No. 22933/62. Addition to 946,130. Headings H2B and H2E. The parent Specification is modified in that a hollow metal body 2 provides the mould for the contact springset. Contact springs such as spring 1 are held in an insulating insert 3 out of electrical contact with metal body 2 until settable resin embeds the springs in the body to form a composite block therewith. Alternatively, Fig. 4, spacing pillars 6, 7, located externally of metal body 2<SP>1</SP> serve to space the contact springs before the embedding process, the pillars 6, 7, afterwards being removed. Specification 975,765 also is referred to.