baber/WOPTO huggingface dataset:
Patent GB-880075-A (GB)
Title: A mould making machine
IPC: B22C13/08
Filed: 1959-06-09
Abstract: 880,075. Making moulds. DUNLOP, A. June 2, 1960 [June 9, 1959; Oct. 13, 1959], Nos. 19669/59 and 34629/59. Class 87(2). [Also in Group XXII] A moulding machine comprises a carrier having one or more pattern supports each rotatable about two mutually transverse axes whereby a pattern carried by the support may have all its exterior surface presented to a unidirectional stream of mould-forming material. Pattern carriers carrying pattern supports 11 are mounted for intermittent rotation about a vertical axis through stations 22, 23, 26, 27. Each carrier is rotatable about a horizontal axis by engagement of a pinion 14 with an oscillatable arcuate rack 21, while simultaneously gearing 15- 19 actuates flexible drives 20 to rotate the supports 11 about vertical axes. In operation the carriers in turn rotate from the loading and unloading station 22 to a dipping station 23, whereat each pattern is dipped into a tank of slurry raised from below. Between station 23 the station 26 at which sand is applied, the carrier and patterns are rotated by engagement of the pinion 14 with the stationary rack 21 so that excess slurry is centrifuged off. At station 26 the carrier is halted while sand is applied to the patterns which are rotated about the two mutually transverse axes by oscillation of the rack 21. Between station 26 and station 27 at which the moulds are hardened by gassing or by dipping into a liquid, the patterns are rotated to throw off excess refractory. The cycle may be repeated to build up a desired thickness. In a modification a carrier is rotated manually about a horizontal axis, and carries an electric motor which drives the pattern supports through bevel gearing about a transverse horizontal axis.
Patent GB-997709-A (GB)
Title: Improvements in or relating to stowages for inflatable liferafts and the like
Inventor: TUCK SIDNEY ALFRED
IPC: B63C9/22
Filed: 1963-05-18
Abstract: 997,709. Stowing and releasing inflatable craft. P. FRANKENSTEIN & SONS (MANCHESTER) Ltd. June 17, 1964 [May 18, 1963], No. 19841/63. Heading B7S. In a stowage for a life raft or other inflatable article located on shipboard via a lashing C connected, e.g. by a senhouse slip L, to an hydrostatic release device E, the painter line A associated with the life raft or its equivalent is connected to the automaticallyreleasable lashing anchorage provided by the hydrostatic device in such manner as to be freed immediately such device operates, and also has a weak connection to a permanent anchorage on the ship. In the embodiment shown the painter line A has a ring I engaged by a spur J, on an eyebolt D normally captive with the device E. A light cord K connects the ring I to a permanently-anchored shackle F. If the ship founders the hydrostatic device E operates to release the eyebolt D. The painter line A remains connected to the shackle F and initiates self-inflation of the raft. The relatively weak connecting cord K then breaks.
Patent GB-596758-A (GB)
Title: Improvements in or relating to dehydrogenation catalysts
IPC: B01J23/18
Filed: 1945-08-02
Abstract: Dehydrogenation catalysts for use in the conversion of secondary aliphatic alcohols to ketones comprise one or more difficulty reducible dehydrogenating metal oxides and a minor proportion of bismuth oxide, generally 1-6 per cent. by weight of the said metal oxides which include oxides of zinc, cerium, and magnesium.  The powdered oxides may be mixed, slurried with an equal volume of water, coated on a carrier such as pumice or copper or brass turnings by tumbling, and dried at 80 DEG C. Secondary alcohols such as isopropyl, butyl or amyl may be passed at 350-500 DEG C and 1-3 atmos. with a feed rate of 0.5-10 vols. liquid/vol./hr. through a catalyst-packed tube.  Results are given for the conversion of sec. butyl alcohol to methyl ethyl ketone using Zn O + 6 per cent. Bi2O3 showing the increased activity, stability, life, and resistance to poisons compared with ZnO or ZnO + Na2 CO3.ALSO:Dehydrogenation catalysts for use in the conversion of secondary aliphatic alcohols to ketones comprise one or more difficulty reducible dehydrogenating metal oxides and a minor proportion of bismuth oxide, generally 1-6 per cent by weight of the said metal oxides which include oxides of zinc, cerium, and magnesium.  The powdered oxides may be mixed, slurried with an equal volume of water, coated on a carrier such as pumice or copper or brass turnings by tumbling, and dried at 80 DEG C. Secondary alcohols such as isopropyl, butyl or amyl may be passed at 350-500 DEG  C. and 1-3 atmos. with a feed rate of 0.5-10 vols. liquid/vol./hr. through a catalyst-packed tube.  Results are given for the conversion of sec.-butyl alcohol to methyl ethyl ketone using ZnO+6 per cent Bi2O3 showing the increased activity, stability, life and resistance to poisons compared with ZnO or ZnO+Na2CO3.
Patent GB-1141306-A (GB)
Title: Heat recoverable reinforced article and a process for its manufacture
Inventor: COOK PAUL MAXWELL
IPC: F16L9/12
Filed: 1966-05-05
Abstract: 1,141,306. Heat recoverable articles. RAYCHEM CORP. 5 May, 1966 [6 May, 1965], No. 19957/66. Heading B5B. [Also in Divisions D1 and H1] A heat-recoverable article comprises a material having elastic or plastic memory, and a braided reinforcement that is capable of expanding and contracting in the principal direction in which the memory material expands or contracts, the reinforcement lying at an angle not exceeding 45 degrees relative to the axis (as defined) of the article. The braiding may be on the inside, outside or within the memory material. The memory material may be a polyamide, polyester, polyolefin, PTFE, PVC, PVAcetate, polyvinylidenechloride, polyurethane or silicone rubber, all of which may have been cross-linked. Exemplified is a coaxial tube of two heat shrinkable materials, having the reinforcement between them; suitable braiding is made of metal, glass or synthetic fibres. The coaxial tube may enclose an inner electrical conductor (see Division H1). Such a tube is made by extrusion of a first tube, braiding it, and finally extruding an outer tube over the braided tube. The whole assembly is then expanded by inflation and heat-set, whereby it is rendered heat shrinkable.
Patent GB-531031-A (GB)
Title: Improvements in and relating to a method of making underground tubular structures such as galleries or conduits
IPC: E21D11/08
Filed: 1939-07-10
Abstract: 531,031. Shaft and tunnel linings. ENTREPRISES CAMPENON BERNARD. July 10, 1939, No. 20041. Convention date, July 13, 1938. [Class 87 (i)] [Also in Group XXI] Elements for lining tubular underground structures may be of vibrated and compressed concrete reinforced by longitudinal and transverse frames c1, c2, c3 and by wires c4 arranged zigzag around the frames. Embedded stirrups t assist handling and support of the elements.
Patent GB-1393131-A (GB)
Title: Current transformer connection control
IPC: H02H3/04
Filed: 1972-05-01
Abstract: 1393131 Protective arrangements COMPTEURS SCHLUMBERGER 1 May 1972 [30 April 1971] 20065/72 Heading H2K An arrangement for controlling the connection of a current transformer output to a load 13, e.g. for preventing incorrect operation of a protective circuit due to transformer saturation, comprises means 18, 26 for producing a first signal A representative of the sign of the derivative of the current transformer secondary current, means 19 ... 24 for producing second and third signals B, C, representative of the direction of the current when it exceeds threshold values on respective half cycles, and a logic circuit 30 responsive to the signals A, B, C, for producing a signal S to inhibit the connection of the load 13 to the output of the current transformer 10 when the combination of the signals is indicative of an interval of transformer saturation. As shown the signal A is produced by a transformer 18 and an analogue-to-digital converter 26 which is polarity responsive and produces a logic output. The signals B, C, are produced by a resistor 19, an amplifier 21 and threshold detectors, 23, 24 responsive to positive and negative valves respectively. The logic circuit 30 comprises an inverter 31, AND circuits 33, 34 and an OR gate 32. Delay circuits may be connected between the level detectors 23, 24 and the circuit 30, Fig. 3 (not shown). Alternatively, further logic elements may be provided between the detectors 23, 24 and the circuit 30 to form a memory circuit, Fig. 4 (not shown). In each case, incorrect operation due to residual magnetism is prevented.
Patent GB-837604-A (GB)
Title: Process for the preparation of polymers of ethylene which are solid at room temperature
IPC: C08F2/00
Filed: 1956-06-28
Abstract: A catalyst for use in the polymerization of ethylene is formed by mixing one or more compounds of Group IVa, Va or VIa metals with at least one dialkyl compound of cadmium such that Cd: a-sub group metal < 0.4:1.  A TiCl4-CdEt2 combination is used in the example, but mentioned generally are Ti, Zr, Hf, V, Nb, Ta and Cr, compounds of acetylacetone with the said metals being preferred; also specified are dipropyl-, diisopropyl- and dihexyl-Cd.ALSO:Ethylene is polymerized in an organic medium using as catalyst the product formed from one or more compounds of Group IVa, Va and VIa metals with at least one dialkyl compound of cadmium such that Cd : A-sub group metal < 0.4 : 1.  Catalyst components and monomer may be added during polymerization.  In an example the polyethylene obtained is washed with cyclohexane, methanol, dilute acid, water and ethanol.
Patent GB-299510-A (GB)
Title: Improvements in and relating to rolling mills
IPC: B24B5/36
Filed: 1927-07-28
Abstract: 299,510. Williams, S. July 28, 1927. Rolling.-Scale is removed from the roll 8 by a full length emery, carborundum, &c. block 13 spring and adjustably mounted in a channel 12 pivoted by arms 33 to a rod 29 and held in contact with the roll by the weight of a lever 36 which can also be pressed by its pedal 40. The end of the lever 36 abuts against the plate 35 for pressing movement but can be hinged up to a pin hole 42 to withdraw the block. The abrading element may comprise a number of blocks with oblique abutting faces to give continuity of effective abrading surface. The whole device is carried by a pair of plates 39 mounted on the usual supporting bar 50. A simpler form of the device is pivoted to a bolted bar and screw adjusted in or out of contact.
Patent GB-999829-A (GB)
Title: Improvements in skirting
Inventor: MACEY JAMES ALAN
IPC: E04F19/04
Filed: 1962-05-25
Abstract: 999,829. Skirting strips for buildings. JAMES BOOTH ALUMINIUM Ltd. May 20, 1963 [May 25, 1962], No. 20124/62. Heading E1V. An extruded skirting strip 10 comprises an upper portion 22 having a longitudinally extending recess 23 which receives a sealing bead 26 which engages the wall 20 of the building, and a curved lower portion 13 having a longitudinally extending recess 12 adapted to receive an edge of one or more floor panels 11. The wall 14 of the recess 12 has a reduced thickness portion 28 to facilitate inward bending of the wall 14 to grip the panel 11.
Patent GB-606967-A (GB)
Title: Improvements in or relating to methods for the oxidation of saturated aliphatic hydrocarbon gases
IPC: C07C47/04
Filed: 1945-08-07
Abstract: <PICT:0606967/IV(b)/1> In the process of the parent Specification for the oxidation of saturated aliphatic hydrocarbons by means of sulphuric acid of at least 75 per cent concentration or sulphur trioxide, one or more catalysts comprising cerium, rebidium, platinum, palladium or lead or compounds thereof are present.  The process may be effected in apparatus similar to that described in the parent Specification or in the apparatus shown in Fig. 2 in which sulphuric acid is charged through line 26 into a jacketed tower 25 which is heated. The hydrocarbon containing gas is passed into the tower through line 27 and passes through the body of sulphuric acid. The oxidation products pass out of the tower through line 28 to a chamber 29 which may be insulated to maintain its temperature or may be slightly cooled to aid the removal of entrained acid which together with any condensate is returned to the tower through trapped line 30.  The gases and vapours then pass upwardly through a scrubbing tower 32 where they are scrubbed by a liquid, preferably water, when the formaldehyde (when natural gas is oxidized) and other oxidation products as well as the bulk of sulphur dioxide are removed.  Remaining gases consisting mainly of unreacted hydrocarbon material with some sulphur dioxide and water vapour pass into a scrubber 36 where they may be scrubbed with water or preferably with concentrated sulphuric acid.  The scrubbed gases are then forced by a suitable blower or pump 38 into the base of the sulphuric acid tower, make-up gas being supplied continuously through line 40.  Gas, e.g. when it contains an excess of non-reactive diluents, may be vented through line 41 when desired.  Preferred catalysts for the reaction are mixtures of cobalt, nickel or iron compounds with silver and cerium compounds, e.g. cobalt, nickel or iron sulphates or chlorides, silver nitrate and cerium sulphate.  Effective conversions of methane into formaldehyde are obtained by employing rates of flow of gas giving space velocities ranging from about 0.5 to about 8 per minute of gas to sulphuric acid and space velocities within this range are advantageous whether the sulphuric acid is used alone or in the presence of the catalysts.  The oxidation of ethane, propane and butane to formaldehyde are also mentioned and in the treatment of ethane a recycling rate giving a space velocity of 5.6 to 5.85 per minute and a catalyst consisting of a mixture of cobalt sulphate heptahydrate, silver nitrate and cerous sulphate is used at about 325 DEG  C.  The Specification as open to inspection under Sect. 91 refers also to the use of a catalyst consisting of a mixture of cobalt sulphate heptahydrate and silver nitrate and states that this catalyst may be used for the production of formaldehyde from ethane at about 320 DEG  C.  This subject-matter does not appear in the Specification as accepted.
Patent GB-449368-A (GB)
Title: Wheeled clockwork toys
IPC: A63H17/40
Filed: 1935-07-15
Abstract: 449,368. Mechanical toys. MARX & CO., Ltd., L., Waddams Pool Works, Dudley, and OPIE, E. J., Sandridge, Wollaston, Stourbridge, both in Worcestershire. July 15, 1935, No. 20198. [Class 132 (iii)] A clockwork toy vehicle, Fig. 2, which is diverted on reaching the edge of a running surface comprises a driving wheel and a normally freely rotatable wheel F to which is secured on the outside or inside a toothed wheel 1 which can be locked by a detent 7 on the spring- controlled lever 2 pivoted at 9 on a bracket 10 extending from the clockwork casing H, the detent 7 being normally held out of engagement with the wheel 1 by the end 3 of the lever 2 normally engaging the running surface. The lever 2 is held against lateral movement by a bracket 11. In a modification teeth are provided on the wheel F instead of the toothed wheel 1. The vehicle can be weighted at the rear end at J. The wheels may be provided with rubber tyres. In the construction shown in Fig. 4 the lever 2 is replaced by a spring- controlled spindle 12 having at the front end a transversely extending finger 13 contacting with the running surface and having at the other end an upwardly offset arm 14 provided with the detent 7.
Patent GB-1346243-A (GB)
Title: Overhead conveyor
IPC: B61B10/02
Filed: 1971-04-19
Abstract: 1346243 Conveyer systems; elevated railways PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [27 Jan 1970] 20258/71 Heading B7L An overhead conveyer comprises an endless driving chain 6 guided in a closed main guide track 1; double-trolleys 11 each consisting of a driving trolley 13 forming part of the chain 6 and a suspension or free trolley 15 which can be coupled to the trolley 13 by a detachable connection 16; a local lower guide track 3 for guiding the trolley 15 and automatically uncoupling it from the trolley 13, a rotary wheel switch N for transferring the trolley 15 to a lower side track 5 on which the trolley can move by gravity to another rotary wheel switch N for transferring the trolley to another local truck 3 which guides the trolley 13 and causes it to be automatically coupled to a driving trolley 15 on the main track 1. The invention is characterized in that the detachable connection 16 consists of a self-centring coupling in the form of a ball portion 29 on a onearmed claw 23 on the tolley 13 and a ball-socket portion 31 in a double-armed claw 25 on the trolley 15, and a locking pawl 33 pivoted to the trolley 13 for automatically locking and unlocking the connection 16. The pawl 33 has a locking finger 37 co-operating with an inclined surface 43 and a locking arm 41 both on the claw 25. A spherical supporting surface 35 on the pawl can pass between the two arms 27 of the claw 25 to engage with the ball portion 29 of the claw 23 when the double trolley 11 is ascending an incline of the main track 1 as described with reference to Fig. 3a (not shown). Similarly when a double-trolley 11 is descending an incline of the main track 1 the finger 37  engage the inclined portion 43 of the claw 25 as described with reference to Fig. 3b (not shown). Each suspension trolley 15 is provided with a plate 53 having coding pawls 51 which co-operate with automatically operating sensors whereby a suspension trolley 15 may be switched to a selected side track 5 by means of an associated track 3 and a switch pawl M of the associated rotary switch N engageing a notch in the plate as described with reference to Fig. 6 (not shown). The uncoupling of suspension trolley 15 is effected by the local lower track 3 raising the trolley 15 with respect to the main track 1 and thus relative to the driving trolley 13 as described with reference to Fig. 5 (not shown). Similarly a trolley 15 is switched from the side track 5 on to a lower local track 3 as described with reference to Fig. 7 (not shown) the trolley 15 being raised and then lowered relative to the track 1 and then relative to a trolley 13, to effect coupling with that trolley 13, as described with reference to Fig. 8 (not shown).
Patent GB-1487993-A (GB)
Title: Process for utilizing ferrophosphorus
IPC: C01B33/06
Filed: 1976-05-17
Abstract: 1487993 Calcium phosphide HOECHST AG 17 May 1976 [31 May 1975] 20262/76 Heading ClA Calcium phosphide (Ca 3 P 2 ) is produced by reacting at 1250 to 1500 C. ferrophosphorus with CaSi 2  in proportions necessary to obtain a reaction mixture containing Ca and P in at least the stoichiometric quantities for the formation of Ca 3 P 2 , allowing the melt to cool gradually so that two separate solid phases form consisting of ferrosilicon and Ca 3 P 2  and then separating the two phases. The source of CaSi 2  may contain 50 to 61À5 wt. per cent of Si, including any free Si, if present. Exemplified cooling rates of the melt are 100 C./5 min.
Patent GB-682352-A (GB)
Title: Improvements in or relating to spectacles
Inventor: JAY LESLIE STUART
IPC: G02C11/02
Filed: 1950-08-15
Abstract: 682,352. Spectacle frames. JAY, L. S., and HENRY, H. J. July 26, 1951 [Aug. 15, 1950], No. 20280/50. Class 97 (i). A pair of spectacles comprises a main frame having eye frames with lenses and a connecting bridge, an auxiliary frame having eye frames and a connecting bridge shaped to fit over and completely mask the front of the main frame, and fastening means for detachably securing the auxiliary frame to the main frame, the fastening means comprising socket portions in one frame set with their axes normal to the faces of that frame and spigot portions carried by or inserted through holes in the other frame adapted to be detachably engaged in the sockets. A munber of auxiliary frames of different colours may be provided to allow the apparent colour of the spectacles to be changed, and the auxiliary frame may be glazed to afford sun spectacles. As shown in Fig. 2 the main frame 10 has tubular portions 22 fixed thereto and forming sockets which engage in holes 27 of the auxiliary frame 17, headed spigot pins 24 frictionally engaging in the sockets and holding the frames together. Alternatively the pins may be fixed within the auxiliary frames 17, or may be threaded to screw within threaded sockets fixed to the frame 10. In the modification shown in Fig. 7 the threaded spigot 24 is inserted from the rear through a hole in the frame 10 and screws into a socket 31 fixed to the auxiliary frame 17.
Patent GB-1033055-A (GB)
Title: Pressure vessels
Inventor: BARRETT NORMAN THOMAS
IPC: E04H7/20
Filed: 1962-05-25
Abstract: 1,033,055. Reactor pressure vessels. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 10, 1963 [May 25, 1962], No. 20305/62. Heading G6C. A pre-stressed concrete pressure vessel is braced by a tensioned latticework derived from geodetic systems and includes an apex of the systems; the apex is defined as a point on the surface of a sphere where the longest perpendicular to the plane common to the polar axis cuts the surface of the sphere. The embodiments described all relate to pressure vessels for gas cooled nuclear reactors, and include an inner lining of the concrete to render the vessel impermeable to coolant gases. Fig. 1 shows the top part-spherical dome 2 of a cylindrical pressure vessel 1. The tensioners 4 are housed in conduits preformed in the concrete during casting and are tensioned after assembly by hydraulic jacks. Thus, the tensioning system reduces or eliminates tensile forces within the concrete. As seen in Fig. 2, this embodiment utilizes a four-pole geodetic latticework; hence the lines shown in Fig. 2 are arranged as two groups of great circle paths, having a N-S and an E-W axis respectively. A second embodiment shows a system having three pairs of poles in a common plane. Fig. 4 shows a spherical pressure vessel formed from six identical panels 6 having ribbed peripheries. The tensioning members passing over the surface of a given panel pass through its peripheral rib and are anchored in the peripheral ribs of the adjacent panels. The lattice associated with each panel is a fourpolar system and includes an apex. A similar arrangement may be used for a hemipherical portion of a pressure vessel by utilizing one panel 6 and four half-panels. In all the embodiments, whilst the inner profile of the vessel is at least partly spherical, the outer profile may be faceted, and the concrete thickness raised.
Patent GB-299533-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02N99/00
Filed: 1927-08-02
Abstract: 299,533. Marion Steam Shovel Co., Cowardin, S. P., and Cowardin, H. A. Aug. 2, 1927. Drawings to Specification. Starting.-The Specification describes the same apparatus as that described in Specification 282,342 and the invention comprises manual means for starting the engine in either direction, in which the following sequence of events takes place :-(a) the valve-gear cams are moved axially to an inoperative position; (b) the camshaft is rotated to retard the timing; and (c) the cams are returned to their operative position and the charge of fuel fog is thus injected into the appropriate cylinder and fired. Specifications 13953-06, 135,875; and 299,532. [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for]. also are referred to.