baber/WOPTO huggingface dataset:
Patent GB-831660-A (GB)
Title: Improvements in or relating to cathodic protection of metallic structures
Inventor: WAITE WILLIAM GODFREY
IPC: C23F13/02
Filed: 1957-02-08
Abstract: 831,660. Preventing corrosion. HUGHES & CO. Ltd., F. A. Jan. 13, 1958 [Feb. 8, 1957], No. 4382/57. Class 123(1) A sacrificial anode for protecting metal structures against corrosion consists of a cylindrical block 12 of magnesium into which is cast a tubular steel core 17 closed by a cap 11. The external diameter of the core is from “ to # that of the anode. The core carries two flat, perforated strips 14 also embedded in the anode material. The anode is supported on a tubular spigot 17 bolted or welded to the metal structure to be protected which may be, for example, the interior surface of a tank of an oil-tanker ship. The spigot 17 may be filled with concrete 28 to prevent ingress of oil. The core and spigot are connected by a threaded sleeve 22 so that replacement of a consumed anode is facilitated.
Patent GB-620658-A (GB)
Title: Improvements in and relating to protected electric induction apparatus
IPC: B64C29/00
Filed: 1945-02-23
Abstract: 620,658. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 23, 1945, No. 4562. Convention date, Feb. 24, 1944. [Class 38 (ii)] [Also in Group XXXVII] A protective arrangement for induction apparatus, e.g. a transformer, comprises a bulb 20, in heat exchange relation to a cooling fluid for the apparatus, bellows (not shown) in thermal relays 21, 30, 32, for operating switches 24, tubes 22 connecting the bulb and bellows containing a fluid expansible on heating to operate the bellows, and auxiliary heaters 35 for testing the operative condition of the bellows. The bulb 20 is heated by a coil 16, energized by a current transformer 17, to operate the thermal relays in the order 30, 32, 21, which relays respectively control a fan 31, indicator lamp 33 and a circuit-breaker 26 at temperatures of 85‹ C., 100‹ C., and 115‹ C. The relays are calibrated in the factory either by applying a constant wattage and determining the time taken by each bellows to operate, or by determining the number of watts required to operate each bellows. The bellows may then be tested under operative conditions to ascertain whether they operate in the same time or with the same wattage as when tested. Specification 394,828 is referred to.
Patent GB-1488227-A (GB)
Title: Process for the production of olefins
IPC: C10G69/06
Filed: 1976-02-05
Abstract: 1488227 Olefins by two-stage cracking of oil DOW CHEMICAL CO 5 Feb 1976 04579/76 Heading C5E Ethylene and propylene are produced by a two-stage process comprising (a) hydrocracking an oil fraction boiling in the range 200-1000‹ F. with a highly active sulphided hydrocracking catalyst, with 4-60 moles H 2  per mole feed, at 300-565‹ C. and a pressure greater than 400 p.s.i.g., and with a residence time of 1-180 seconds so as to produce a C 2 -C 5  product in a yield of 74-96% and to achieve a normal paraffin : iso-paraffin ratio greater than 3 : 1 in the C 2 -C 5  portion of the product and (6) thermally cracking the hydrocracked product to give ethylene and propylene. The thermal cracking may be carried out at 800-925‹ C., 10-30 p.s.i.g., with a residence time of 0À1-1 second and a steam/hydrocarbon wt. ratio of 0À1-1 : 1.
Patent GB-1385483-A (GB)
Title: Chemical extraction vessel
IPC: B01D11/04
Filed: 1971-02-12
Abstract: 1385483 Liquid/liquid extraction R C SMITH 2 May 1972 [12 Feb 1971] 4601/71 Heading B1F Liquid/liquid extraction apparatus allowing for sequential extraction of a mother liquor using lighter and denser liquid phases comprises tubes 1 and 6 joined by drain ducts 10 and 11.
Patent GB-198016-A (GB)
Title: Improvements in electrically heated incubators
IPC: H05B3/00
Filed: 1922-02-17
Abstract: 198,016. Trott, A. J., and Weight, E. L. J. Feb. 17, 1922. Thermostats.-An electrically-heated incubator is fitted with several heating-coils connected in parallel and controlled by a switch operated by a thermostatic capsule &c. so as to cut out the heating-coils successively as the temperature rises. The switch may consist of a mercury trough C into which dip contact-pieces E, F, G, H, J attached in a step-like arrangement to a lever D operated by a capsule L, each contactpiece being in circuit with one of the heating coils K. Reference has been directed by the Comptroller to Specifications 26831/13, 26835/13 and 2012/15.
Patent GB-575370-A (GB)
Title: Improvements in or relating to domestic or like boilers
IPC: F24C13/00
Filed: 1944-03-14
Abstract: 575,370. Domestic &c. boilers. KOCK, B., and SUNDELIN, A. March 14, 1944, No. 4717. [Class 64 (i)] A boiler 1 is heated by a fire &c. 3 from which it is separated by a closed heating chamber 2 normally filled with liquid, preferably a mixture of water and glycol, and communicating with an expansion vessel 5 by a riser 4, the lower end 6 of the latter being disposed at such a level 7 that, when the liquid is partly evaporated and the pressure in the chamber 2 increased, some of the liquid will be forced into the expansion vessel 5 until the remaining liquid sinks to said level 7, that is, free of the boiler but covering the wall of the chamber actually contacting the fire. The chimney is preferably fitted with a damper 9 coupled by lever mechanism 10 to a float 11 in the vessel 5 so that as the level of liquid in the vessel rises the damper will simultaneously close to reduce the intensity of firing. In a modification, Fig. 4, the fireplace is displaced laterally of the boiler and the part of the heating chamber surrounding the boiler is separated from that around the fireplace by a partition 14 and a bent-over circulation wall 15. The riser 4 and expansion vessel 5 are disposed as shown, and both the riser and a return pipe 17 on the expansion vessel are provided with non-return valves 16, 18.
Patent GB-1108682-A (GB)
Title: Article handling apparatus
Inventor: WILLSEY CHARLES HOWARD
IPC: A01K43/00
Filed: 1966-02-03
Abstract: 1,108,682. Endless conveyers. NORRIS GRAIN CO. 3 Feb., 1966, No. 4754/66. Heading B8A. An egg handling apparatus comprises a pair of endless belt conveyers 17, 18 in side-by-side relation and driven in opposite directions wherein one conveyer 17 has a feed-in point at one end and a feed-out point normal to the side at the other end discharging to an egg orientating device 14 delivering to a conveyer 15 with pockets therein for the eggs. ,The conveyer 18 returns those eggs in excess of requirements for the conveyer 15 from the feed-out point to the feed-in point. The first conveyer 17 has rods 24 attached to the surface to assist in the transport of the eggs and has flexible arms 80, 81 mounted just clear of the surface to guide the eggs to the outside edge 22 and on to the orientating means respectively. The arms 80, 81 are spaced from the outside edge 22 by a distance approximately equal to the diameter of the eggs and co-operate with microswitches 93, 94 such that an excess of eggs will force the arms back to operate the switches and stop the supply conveyer 12. A fixed arm 82 also guides the eggs on to the orientating device and any excess eggs on to the second conveyer 18 for return to the feed-in point. The orientating device 14 comprises a plurality of upwardly open V-shaped grooves (46) with a slot (47) in the bottom thereof, each for the upper run of a conveyer (48), comprised of a plurality of pivotally connected heads or spheres, to promote a rolling motion of the eggs to align their long axis transverse to their direction of travel. Fingers (63) are pivotally mounted above alternate grooves in a staggered relationship and are oscillated to help align the eggs by a mechanism (68), (70) driven from the means driving the conveyers (48). A further finger (77) is pivotally mounted and is weighted to contact the discharge end (61) of the orientating device and to guide the eggs into the pockets of the conveyer 15. The conveyer 15 comprises a pair of laterally spaced endless chains (36), (36<SP>1</SP>) joined by longitudinal spaced transverse rods (37) with spool-like members (39) mounted thereon to form between each of two adjacent rods a series of pockets (40) to accommodate the eggs.
Patent GB-989562-A (GB)
Title: Improvements in or relating to rim brakes
IPC: B62L1/16
Filed: 1962-02-08
Abstract: 989,562. Cycle brakes. K. ALTENBURGER. Feb. 8, 1962 [Feb. 8, 1961], No. 4934/62. Heading B7E. A rim-brake comprises two levers 13 and 14 pivoted separately at 12 and biased by a spring 22, each lever having an arm 13a, 14a camming a brake block 16 and another arm 13b, 14b connected to actuating means 17, 18, the levers being coupled to each other at least in respect of their motion when the brake blocks approach each other. The pivots 12 are mounted on a bracket 10 fixed to the cycle frame.
Patent GB-306044-A (GB)
Title: Improvements in and relating to sound reproducing apparatus
IPC: H04R9/06
Filed: 1929-02-14
Abstract: 306,044. British Thomson-Houston Co., Ltd., (Assignees of Zimmerman, A. (G.). Feb. 14, 1928, [Convention date]. Addition to 250,931. Magnetic instruments.-In a sound reproducing apparatus having a diaphragm actuated by a coil located in an annular magnetic airgap, the impedance of the coil is lowered by covering at least the active area of one or both pole pieces with a layer of conductive non-magnetic material. In the construction shown, the pole pieces 6, 7 are provided with copper linings 9, 10 respectively. Specification 271,326 is referred to.
Patent GB-796896-A (GB)
Title: Method of producing selenium rectifiers
IPC: H01L25/07
Filed: 1956-02-17
Abstract: 796,896. Selenium rectifiers. STANDARD TELEPHONES & CABLES, Ltd. Feb. 17, 1956 [Feb. 24, 1955], No. 5000/56. Class 37. A method of making a selenium rectifier comprises forming a layer of hexagonally crystalline cadmium selenide on the selenium before the application of a counter electrode. Such a layer is of low resistance and limits diffusion of counter electrode material into the selenium during operation. The layer may be formed by simultaneously evaporating cadmium and selenium in vacuum from separate vaporizers on to a selenium layer heated to 130-140 C. by heating wires at the back of the base-plate. Measured small doses of Cd and Se may be used in the vaporizers and the bases may be exposed to such vaporizers several times to give the required layer thickness. Before the application of the Cd and Se the Se may be treated with thallium or alkali, e.g. caesium salt solutions, or with evaporated solid or gaseous material, and the Cd and Se may be applied before or after conversion of the Se to its high conductivity form. A small quantity of thallium which may be required for the forming process may be applied before or with the first portions of Cd and Se by vaporization of a eutectic alloy of 83 per cent by weight of thallium and 17 per cent of cadmium. The Cd and Se may be evaporated simultaneously or in rapid sequence. In the latter case the first portion of Cd is replaced by the alloy. Reference has been directed by the Comptroller to Specification 630,785.
Patent GB-1397342-A (GB)
Title: Reinforced surgical drape
IPC: A61B19/08
Filed: 1973-02-01
Abstract: 1397342 Surgical drapes JOHNSON & JOHNSON 1 Feb 1973 [2 Feb 1972] 5042/73 Heading A5R A surgical drape comprises a main panel 10 to which is secured a reinforcing panel 17 and at least one tab 19 positioned at the top edge of the panel 17 and at least one tab 23 positioned at a side edge of the panel 17 near the bottom edge of the panel 17, each tab having a flexible portion which is free of the drape and has at least two openings 22 for retaining flexible members, e.g. suction tubing or electric leads, in position. The tabs may be adhesively secured or heat sealed to the panels 10 and 17. The drape has an opening 18 extending through panels 10, 17 and a plastics film may 'be located between the panels. Preferably a tab 23 is provided at each side edge of panel 17 and additional tabs 20, 21 may also be provided at the side edges.
Patent GB-193671-A (GB)
Title: Improvements in or relating to railway signalling systems
IPC: B61L23/12
Filed: 1922-02-21
Abstract: 193,671. Automatic Telephone Manufacturing Co., Ltd., and Hudd, A. E. Feb. 21, 1922. Addition to 163,418. Electrical systems, non-automatic; combined electrical and mechanical systems, non-automatic. -In a system of the kind described in the parent Specification, the current momentarily transmitted over the track rails differs in character from any current likely to affect the track. The momentary current may be a series of impulses or, as in the system shown in the Figure, an alternating current. Instruments at each end of the section show the state of the track and automatically show ' train on line ' if a train enters from either end. An emergency switch is provided for use in case of failure of the line wire or the track circuits and enables traffic working without serious delays. The Figure shows the apparatus at each end of a section for one direction of traffic only. To accept a train from B to A the handle 8 is moved to the left and partially restored to normal. In its end position the magnet 0 is energized through the make-and-break contact 14. The armature 15 continues vibrating and alternating impulses from the batteries 13, 19 pass over contact 10, over the seotionalized track rail, the insulations in which are bridged by the switches on the signals if these stand at danger, to the transformer P and energizes alterating current relay Q, which has a vibratorv armature 29. When this armature is vibrated sufficiently it closes the circuits to the slow release relays R, S. The relay T which is connected across the short rail section 36 is then energized and remains so until the train enters the section, since the armature 37 closes a stick circuit for the relays R, S, by way of battery 43 at cabin A, contact 12, rail section 46, indicators N, U, contact 37, relays B, S, and return track rail. The indicators show ' line clear.' Armature 40 of relay T energizes a lock magnet or signal reverser V. As the train enters section 36, the relay T is shunted and the armature 37 then closes a circuit from battery 53, over armature 37, indicators U, N and battery 43; the battery 53 is of higher EMF than battery 43, and hence the current is reversed and indicators show ' train on line.' A train backing on to the section at A after ' line clear ' is given shunts the relays R, S and de-energizes relay T so that ' train on line ' is given as above. If a train backs in while the instruments are normal, a circuit is completed from battery 53, over contact 41, indicators U, N and return rail. Both indicators show ' train on line.' A three-position emergency switch, shown on the Figure as two two-position switches 49, 50, enables working if the line wire is broken or if the track circuits are faulty. By closing contact 56, the indicator U is operable from the cabin A independently of the line wire or by closing contact 57, if the track circuit is broken the section may be worked as in ordinary block working, the relays R, S, T being inoperative and a part of battery 53 being connected in circuit.
Patent GB-642837-A (GB)
Title: Process for printing or dyeing superpolyamide fibres
Filed: 1948-02-20
Abstract: Superpolyamide fibres are dyed or printed by applying a composition comprising an ester salt of a leuco vat dyestuff, an agent capable of liberating acid, and a salt of a nitro aryl sulphonic acid, and then steaming.  The fibres may be after-treated with an acid oxidizing agent.  In examples: (1) a p  nylon fabric is printed with a composition comprising the sodium salt of the sulphuric acid ester of a leuco vat dyestuff, b -b 1-dioxydiethyl sulphide, thickening, ammonium thiocyanate and sodium meta-nitrobenzene sulphonate, dried and steamed; (2) nylon is printed with a similar composition, dried, steamed and after-treated in an acid nitrite bath; and (3) nylon fabric is impregnated on a foulard with a similar composition and finished as in (2).  Several suitable leuco vat dyestuffs are specified.  The Specification as open to inspection under Sect. 91 refers generally to the printing or dyeing of nylon with ester salts of leuco vat dyestuffs and to the use of an oxidizing agent consisting of an aromatic compound containing one or more nitro groups and at least one group imparting solubility, e.g. a carboxylic or sulphonic group.  This subject-matter does not appear in the Specification as accepted.
Patent GB-626128-A (GB)
Title: Improvements in electrical resistors
IPC: H01C1/084
Filed: 1946-02-18
Abstract: 626,128. Wire and ribbon resistances; cooling resistances. PAINTON & CO., Ltd., and BENHAM, C. M. Feb. 18, 1946, No. 5085. [Class 37] The core of a wire-wound resistor is of ceramic material having a high thermal conductivity k which is not less than 0.025 C.G.S. units. A preferred material is sintered alumina, the k value of which may be 0.054 C.G.S. units. In one embodiment, the resistor former is <SP>9</SP>/ 32  inch diameter by <SP>3</SP>/ 4  inch long and 20 S.W. G. copper leads connected to the resistance element are uninsulated for 1 inch from each end respectively of the resistor former. It is stated that such a resistor may be rated at 8¢ watts corresponding to a surface temperature of 300‹ C. as against 5¢ watts for an equivalent resistor wound on a porcelain former. Resistors of high rating may be wound on sintered alumina tubular formers and operated under conditions of forced convection cooling or water cooling through the bore of the tube.
Patent GB-1495216-A (GB)
Title: Conduit for conveying a fluid the temperature of which is different from the surrounding temperature
IPC: F16L59/14
Filed: 1976-02-10
Abstract: 1495216 Insulating pipes; expansion joints TECHNIGAZ 10 Feb 1976 [24 Feb 1975] 05159/76 Headings F2P and F2G An insulated conduit wherein a circulation pipe 11 and insulating sheath 13 surrounded by rigid covering 14 are interrupted at regular intervals to allow for axial expansion is characterized in that telescopic axial movement is allowed by the formation of at least one lap joint 52, 53 in the insulation layer,.and in that defined between the circulation pipe and a coaxial stationary sleeve 23 is an annular space 22 wherein two corrugated compensators are connected at respective ends to the sleeve and pipe ends to compensate for relative movement of the latter. Preferably a nickel steel circulation pipe 11 is telescopically connected via a sleeve member 20 welded to one pipe end and an insulating sheath 13 of polyurethane foam coated with polyethylene 60 is formed into two lap joint formations 52, 53 sealed by the provision of labyrinth slots 54 and bellows 55, 56. An outer rigid covering 14 is formed preferably as a composite of concrete in thin tubular metal barriers 15, 16. Preferably respective ends of compensator bellows 24, 25 are welded to the pipe ends 18, 19 and through plates 26, 27 to the stationary slave ends to define further annular gaps 42, 43 which are filled with a neutral gas. The sleeve 20 may be provided with several uniformly spaced holes 21 opening into the annular space and neutral gas may be caused to circulate within space 50 defined between the auxilliary sleeve sheath portion 50 and the rigid covering 14. Further embodiments (not shown) differ in that in outer rigid cover 14, one of the tubular barriers are ommitted-in the case of omission of the inner barrier, the sheath being slidable relative to the cover via wooden spacer shoes; and further in that bellows 55, 56 associated with thesheath lap joints are replaced by an impervious compresisble member formed e.g. of closed cell expanded P.V.C. interposed between each lap surface.
Patent GB-564707-A (GB)
Title: Improvements in axlebeds for road vehicles
IPC: B60B35/06
Filed: 1943-03-31
Abstract: 564,707. Vehicle axles. KIRKSTALL FORGE, Ltd., and COWELL, F. R. March 31, 1943, No. 5190. [Class 79 (iv)] [Also in Groups XXII and XXXII] The steering axle of a vehicle is built up of two separately and independently forged right- and lefthand portions 10, 11 welded together at the centre 14 of the axle by flash-butt welding, the metal of the portions at their welded ends being previously thickened-up, so that notwithstanding imperfections in the welded joint the welded portion of the axle will be stronger than the remainder. The axle may be of I- section, or as shown in Fig. 3. The welding machine is arranged to bring the axle to the correct length.
Patent GB-1062987-A (GB)
Title: Electro-optical scanning apparatus
IPC: G07D7/12
Filed: 1966-02-07
Abstract: 1,062,987. Photo-electric scanning heads. SIEMAG FIENMECHANISCHEWERKE G.m.b.H. Feb. 7, 1966 [Feb. 20, 1965], No. 5213/66. Heading H4F. [Also in Division G1] Apparatus for scanning flat articles comprises an incandescent lamp 3 mounted in a pivotable socket 2, a converging element 5 and a photodiode 8 mounted in the element 5. The element 5 may be in the form of a cylinder of transparent plastics as shown, a polyhedral prism or a biconvex lens, so that it bends the light round the photodiode 8 on to a data-carrying object 6. Preferably the photodiode is close but riot in the focal region of the reflected light. The socket 2 may be moved by means of set-screw 4 about swivel axis 9 running through the common optical axis 10 of the apparatus.
Patent GB-399709-A (GB)
Title: Machine for casting metals
IPC: B22D17/12
Filed: 1933-02-20
Abstract: 399,709. Casting-machines. POLAK, J., 3, Havlickovo nam, Prague. Feb. 20, 1933, No. 5226. Convention date, Jan. 19. [Class 83 (i).] Relates to a casting-machine having a mould F, G, and a separate chamber 2, to receive the charge A which, after a closure C has been applied, is forced into the mould by a piston B and consists in moving the closure, adjacent the chamber 2, axially or approximately axially thereof. The closure may be pivoted or guided by a stem 3, Fig. 3, be moved by a lever 4, Fig. 1, or by a rack and pinion 5, Fig. 3, fluid pressure, eccentric, or the like, and be locked in the closed position by the moving means, e.g. lever 4, or by a separate device such as a bolt 6, Fig. 3. The joint face of the closure may be spherical or, as shown in Figs. 1, 3, and 4, conical, cylindrical, or flat. When the gate E, Fig. 4, enters the mould at its dividing plane it may be arranged at the top of the chamber 2 and residue, gate, and casting be ejected together. In another modification the closure, after a short axial movement, can be swung aside to expose the opening.