baber/WOPTO huggingface dataset:
Patent GB-1078029-A (GB)
Title: Improvements in or relating to electrical switches
Inventor: BURNETT THOMAS BRIAN
IPC: H01L39/20
Filed: 1963-09-12
Abstract: 1,078,029. Superconductor switches. ENGLISH ELECTRIC CO. Ltd. Oct. 9, 1964 [Sept. 12, 1963], No. 35983/63. Heading H1K. An electrical switch includes a superconductor switching element consisting of a large number of spaced parallel layers of superconductor material connected electrically in series and normally maintained in the superconducting state by suitable refrigeration but which may be switched to a high resistance state by the application of magnetic fields generated by control windings. The switch is, for example, intended for use as a very high power circuit-breaker in 270 KV A.C. systems. As the niobium conductors used do not have sufficiently high resistance to prevent appreciable power dissipation at these voltages, the superconducting switch is connected in series with a conventional circuit breaker which is operated as soon as the switch has reduced the current to a small value. The controlling field is then removed and the superconductor allowed to recool to below its transition temperature. A control winding is associated with each layer of the superconductor and is wound (in a plane parallel to and insulated from the layer) back and forth across the direction of current flow in the layer. Each winding is energized from its own secondary winding on a pulse transformer the primary of which is energized from a conventional source providing an accurately timed pulse a short time (e.g. 10 seconds) before current zero. The superconductor element and the transformer are mounted in a thermally insulated tank filled with liquid helium. Copper vent tubes from the gas space in the tank lead to the helium liquefaction plant and also act as the terminals of the switch. The tank is mounted within an outer thermally insulated tank containing liquid nitrogen. The outer tank is vented to the air through the insulating bushes surrounding the copper terminals. Various constructions of the switching elements are described. In one the element is a thin but wide and extremely long film folded on itself 1200 times. Between each fold there is insulation and a control winding. Copper members are buried in the insulation and extend into the liquid helium to cool the assembly. Other generally similar constructions differ in that they use separate sheets of superconductor. In one case rectangular sheets are used which are connected in series by superconductive or low resistance connections brazed, soldered, or clamped alternately at opposite ends of the plates. In other forms the layers consist of annular discs alternately connected to adjacent discs at their inner and outer edges. In one embodiment the annuli are complete while in another many sector-shaped portions have been stamped out.
Patent GB-339471-A (GB)
Title: Improvements relating to cigarette and like lighters
IPC: F23Q2/08
Filed: 1929-11-26
Abstract: 339,471. Power, E. A. Nov. 26, 1929. Pocket igniters, frictional.-A friction member h of quadrantal form is mounted on the pivot pin g of a cover c, adapted for direct operation by the user, and one edge of the member engages the underside of the cover so that the member is operated simultaneously with the cover. The latter carries a tubular extinguisher f for the wick e and may close the upper end of a wind screen d detachably mounted on the casing b as by means of turned-over edges m slidably engaging a bead n. Specification 311,975 is referred to.
Patent GB-822752-A (GB)
Title: Improvements in or relating to automatic brake mechanisms
Inventor: ALLEN ARTHUR FREDERICK
IPC: G21C7/20
Filed: 1956-11-26
Abstract: 822,752. Nuclear reactor control-rod retarders. ROLLS-ROYCE Ltd. Jan. 10, 1958 [Nov. 26, 1956], No. 36150/56. Class 103 (1). The movement of a neutron-absorbent member 6 downwardly into the core of a nuclear reactor is controlled by the tightening of a band 5a upon a drum, the shaft 10 of which rotates with a drum 4 on which is coiled a cable 9 connected to the member 6. The band 5a is initially held out of contact with the brake drum by means of a flywheel 2, being rotated through a certain angle and held in this position, by means not shown, so that through torsionspring 3, the pin 3b to which is secured the end of band 5, is also moved clockwise to loosen the band and a peg 2b, on the bore of the flywheel shaft, causes through engagement with a peg 1b, limited clockwise rotation of a shaft 1 anchored at one end. It is arranged that inertia of flywheel 2 and the stiffness of the part 3 should be such that when the flywheel is released, the straightening of the shaft 1, rotates it anticlockwise to engage the band 5a with its drum 5, when the member 6, falling under gravity, is almost at the limit of its fall, whereupon having arrested the member 6, due to the resilience of the spring 3, the flywheel rotates slightly back in a clockwise direction for releasing the member 6 for its final movement.
Patent GB-430805-A (GB)
Title: Improvements in or relating to elastic braided work containing rubber threads and method of and means for making same
IPC: D04C1/08
Filed: 1934-12-17
Abstract: 430,805. Braid. KRENZLER, E., 23, Sanderstrasse, Barmen, Wuppertal, Germany. Dec. 17, 1934, No. 36183. Addition to 430,692. [Class 74 (i)] In an elastic fabric, as described in the parent Specification, the number of bindings b which are woven around or enclose the rubber threads c, d, e is greater than the number of bindings which cross or intersect one another. The bindings which surround the rubber threads may have their threads all lying in the same direction in the ribs of the fabric (Fig. 1) or all the ribs, including those formed from the bindings of the rubber threads f, may exhibit the same closeness of mesh (Fig. 3). The fabric is made in a braiding machine of the kind shown in the parent Specification, the binding threads being given the courses desired by the use of appropriate Jacquard cards.
Patent GB-1471343-A (GB)
Title: Blade cleaning with reverse movement
IPC: G03G21/00
Filed: 1974-08-19
Abstract: 1471343 Cleaning imaging surfaces XEROX CORP 19 Aug 1974 [24 Aug 1973] 36391/74 Heading G2H An electrostatographic apparatus in which a driven continuous imaging surface, e.g. of a photoconductive-surfaced drum, is cleaned by a cleaning blade contacting said surface and extending in a first normal direction of motion of said surface, is provided with means for intermittently reversing said direction of motion of said imaging surface while said cleaning blade is maintained in said same contact with said imaging surface in order to free the blade from built up contaminents and from blade edge "tuckunders".
Patent GB-1355507-A (GB)
Title: Telescopic jib for a crane
IPC: B66C9/06
Filed: 1971-08-03
Abstract: 1355507 Telescopic jibs POTAIN 3 Aug 1971 [5 Aug 1970 12 July 1971] 36470/71 Heading B8B [Also in Division E2] A telescopic jib, Fig. 1, comprises a jib foot 1 and a jib head 2 extended to the length required for the needs of the work site. A lifting truck 5 runs on rails 3 on the jib foot 1. A dummy truck 9, fitted with rails 10 forming an extension of the rails 3 in the position shown, is arranged to run on rails 7 on the jib head 2. When the lifting truck 5 is required to distribute below the jib head 2 it is run on to the dummy truck 9 against a stop 11 and releases a latch 12 whereupon the dummy truck 9 is free to move along the jib head 2 carrying the lifting truck 5. In a modification, Fig. 14, a lifting truck 117 is traversed by an endless cable 110 driven by a winch 111. On jib head 101 the truck 117 is carried on a dummy truck 105. The trucks 105, 117 are latched together by a system comprising a stop 152 on the truck 117 which is trapped between stops 153, 154 on rockers 119, 121 on the dummy truck 105 as shown in Fig. 11. At the change between the jib foot 102 and the jib head 101 (Fig. 9) the trucks are separated, the rocker 119 contacting a roller on a stop 123 whereupon continued retraction of the dummy truck 105 raises the rocker 119 in the direction of arrow 158 so that the stop 153 is withdrawn and the truck 117 is freed, rocker 121 moving under gravity to hold the rocker 119 in its position.
Patent GB-816054-A (GB)
Title: Improvements in or relating to electric discharge devices containing cold hollow electrodes
IPC: H01J17/00
Filed: 1955-12-22
Abstract: A cold hollow electrode for an electric discharge device such as a fluorescent lamp is in part formed of an alloy comprising, per cent, lanthanum 22-25, cerium 54-60, neodymium 10.5-13, praseodymium 4.5-6.5, samarium 1-3, yttrium, terbium, and illinium group 1-1.5, iron 0.4-1, miscellaneous 0.05-0.2.
Patent GB-412588-A (GB)
Title: Improvements in or relating to supporting stands for business machines
IPC: A47B3/04
Filed: 1932-12-29
Abstract: 412,588. Stands; joints; adjustments; castor cups. BURROUGHS ADDING MACHINE CO., 2nd Avenue, Detroit, Michigan, U.S.A.-(Assignees of Rowland, D. P. ; c/o Burroughs Adding Machine Co., 2nd Avenue, Detroit, Michigan, U.S.A.) Dec. 29, 1932, No. 36794. Convention date, Dec. 30, 1931. [Classes 52 (i), 52 (ii), 52 (iii), and 52 (v).] A supporting-stand particularly for calculating and other office machines comprises two side frames joined by two X-shaped braces. Each side piece consists of two uprights 10, 11, a bottom bar 24, a back leg 30, an inclined front leg 31, and a top bar 22 which is formed with projections 32, 33 for supporting a machine. Each X-shaped brace is formed of two crossed bars 14, 15 with a horizontal bar 16 connecting the bottom corners, and the braces are secured to the side-pieces by bolts 50 which pass through the side pieces and engage channel shaped washers 51, 52 and nuts that are held in the ends of the cross-brace tubing. The washer 51 may be countersunk as at 53 and the washer 52 may be omitted. A side table 103 is hinged to brackets 101 fixed to the side bar 22 and is supported by toggles 104. Each part, e.g. a side piece 10, 11, is built up of bars of rectangular X-section welded together. One rear leg of the stand is provided with a slotted telescoping cup 90 and a cam-shaped pin 94 which is held in the slots 91, 92 of the co-operating parts. By the rotation of the pin, vertical adjustments of the height of the leg is obtained and the pin is secured in any position by the wing nut 98. In a modification of the stand, (not shown), there are four pieces comprising a rear member including two corner posts joined by upper and lower horizontal braces, two side members each including a front corner post and horizontal side bars, and a front X-shaped brace, all secured together by bolts, washers and nuts.
Patent GB-1401972-A (GB)
Title: Autoclaved materials
IPC: C04B28/20
Filed: 1971-08-05
Abstract: 1401972 Glass fibre reinforced calcium silicate NATIONAL RESEARCH DEVELOPMENT CORP 14 July 1972 [5 Aug 1971] 36855/71 Heading C1H [Also in Divisions C3 and D2] An autoclaved calcium silicate product is reinforced with fibres of an alkali-resistant glass containing at least 6À0 mol per cent ZrO 2 . The glass is preferably one based on SiO 2 /ZrO 2 /Na 2 O and may contain at least 65% by weight SiO 2  and at least 10% by weight ZrO 2 . The calcium silicate is produced by mixing hydrated lime with quartz or kieselguhr during the manufacture of the product. A quantity of cement may also be present.
Patent GB-1436903-A (GB)
Title: Process for the dyeing of synthetic fibrous material from  organic solvents
IPC: D06P1/90
Filed: 1973-08-03
Abstract: 1436903 Dyestuffs HOECHST AG 3 Aug 1973 [4 Aug 1972] 36954/73 Heading C4P [Also in Division D1] Dyestuffs of the general formula wherein X is an oxygen or sulphur atom, R is H, an optionally substituted alkyl, cycloalkyl or aryl radical, a heterocyclic radical or a substituted hydroxyl or substituted amino group, R 1  is H or an optionally substituted alkyl or alkoxy group, R 2  is H or an optionally substituted alkyl or alkoxy group, R 3 , R 4  and R 5  are halogen, alkyl, alkoxy, acyloxy, aryl, carbalkoxy or cyano, and n 1 , n 2  and n 3  which may be the same or different are 0 or 1 with the proviso that at least one of R, R 1 , R 2 , R 3 , R 4  or R 5  contains at least 6 aliphatically bound carbon atoms are prepared by reacting a benzoxanthene- or thiobenzoxanthene 3,4-dicarboxylic acid anhydride with an amine H 2 NR. In Example 14 6-methoxybenzoxanthene-3,4-dicarboxylic acid-N-isopropanol-imide is esterified with butyric acid anhydride.
Patent GB-926314-A (GB)
Title: Improvements in electric lamp holders
Inventor: LILLEY PHILIP EDWARD
IPC: H01R33/22
Filed: 1959-10-31
Abstract: 926,314. Lamp-holders. S. LILLEY & SON Ltd. Dec. 19, 1960 [Oct. 31, 1959], No. 37014/59. Class 38 (1). In a lamp-holder of the type having an interior unit comprising a screwed socket sleeve 1 mounted on an insulating base 5 having a central terminal 11 insulated from the socket sleeve terminal 4, the sleeve 1 has an inturned flange 2 carrying the terminal 4 and contains an insulating disc 8 which is clamped between the flange 2 and the spring metal terminal 10 by a bolt 12 which passes through the terminal, a hole 9 of the disc and a larger hole 3 of the flange, into the base 5 to engage an arm 13 carrying a wireclamping sleeve 14.
Patent GB-338748-A (GB)
Title: Improvements in automatic electrical igniting mechanism for gas and the like stoves
IPC: F24C3/10
Filed: 1929-12-04
Abstract: 338,748. Gautron, L. G., and Porret, H. Dec. 5, 1928, [Convention date]. Lighting burners by electric devices. - In an electric igniting means for gas-stoves and the like comprising a resistance wire which is brought to incandescence on the opening of the gas cock, a driving arm on the gas cock spindle is adapted to move a contact arm over a contact segment as the cock is opened and then, by means of a cam, to be disengaged from the contact arm which is automatically returned to the normal position. The resistance wire 10 is carried by a porcelain member consisting of two halves fixed together by screws 8, Fig. 5, and is connected with the switch by means of wires 15 in a protecting tube 14. The switch is housed in a steel box screwed to the gas supply pipe and has an axial hole for the passage of the gas cock spindle. which carries a rigidly mounted flexible steel driving arm 43 and a loosely mounted contact arm 24 carrying at its extremity a brass plate 34. A projection 38 on the contact arm is adapted to be engaged by a bent portion of tha end of the driving arm 43 and on the opening of the gas cock the contact arm is drawn over a brass contact segment 28 fixed to an insulating plate at the bottom of the box. The side of the box carries a cam 25 adapted to raise the driving arm clear of the contact arm which is then returned to its normal position by means of a spring-actuated device acting through a cable passing over a pulley 81, said device comprising a spring-actuated piston working in a cylinder 50 containing glycerine, the two ends of the cylinder being connected by a copper tube 55, the entrance to which is partially closed by a brass plate provided with a small hole. The apparatus may also be applied to a spirit stove.
Patent GB-1282931-A (GB)
Title: Treatment of salts of organic bases
Inventor: CARTWRIGHT JOHN ARTHUR
IPC: C01B7/03
Filed: 1969-07-24
Abstract: 1282931 Treatment of the salts of organic bases IMPERIAL CHEMICAL INDUSTRIES Ltd 2 July 1970 [24 July 1969] 37279/69 Heading C2C A sparingly soluble salt of a water-insoluble amine and hydrogen halide may be split into hydrogen halide and the amine by treating the salt with a second acid to form a second salt of the amine with the second acid which is more readily decomposed to amine than the original salt. The examples describe the treatment of the alkylamine hydrochlorides with phosphoric acid.
Patent GB-523031-A (GB)
Title: Improvements in or relating to the lubrication of aero and other engines
IPC: F01M5/02
Filed: 1938-12-22
Abstract: 523,031. Lubricating. TECALEMIT, Ltd. Dec. 22, 1938, Nos. 37325 and 37326. Convention dates, Dec. 24, 1937, and Nov. 29, 1938. [Class 12 (iii)] An engine having a lubricating circuit communicating with the crankshaft of the engine and a pump for circulating the main flow of oil in the circuit, has, for ensuring and assisting the lubrication, a container for hot oil and means independent of the lubricating pump, associated with the container and adapted to be operated at will for discharging the hot oil from the container to the crankshaft. As shown, ,an oil pump 17 supplies the bore 14 of a crankshaft 15 with oil from a reservoir 18. A container 10 is connected by a pipe 23 to a chamber 16 leading to the bore 14 and by a pipe 22 to a source of air pressure. The container has a piston 11 and valves 24, 28 on the side remote from the pipe 23 permit air pressure or atmospheric pressure to act on the piston. In operation, just before the engine is brought to rest, the valve 28 is opened and hot oil from the engine fills the container 10. If the container 10 is permanently fixed in position it is provided with a source of heat and is covered with heat insulating material. Otherwise it is removed and placed in a holder which is heat insulated and provided with means to keep the oil warm. When it is desired to start up the engine again the container 10 is replaced in its working position, and the valve 24 is open so that the hot oil in the container is forced into the crankshaft 14. A non-return valve 29 is placed between the pump 17 and the chamber 16 to which the pipe 23 is connected. In a modified construction of container 10 the piston 11 is omitted and float-operated valves control the inlet of compressed air and the outlet of oil.
Patent GB-449620-A (GB)
Title: Improvements in or relating to the solidification of molten materials
IPC: B01J2/24
Filed: 1934-12-31
Abstract: 449,620. Solidifying liquids by cooling. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Dec. 31, 1934, No. 37409. Convention date, Dec. 30, 1933. [Class 29] Molten materials, particularly caustic soda, calcium chloride and alum, are formed into solid pieces of even shape by applying the molten material to a moving cooled surface, par - ticularly a rotary drum 1, having deep grooves 4, and removing the solid from the grooves by a cutting or digging tool making periodic strokes according to the size of the pieces required. The tool may be a knife 6 reciprocated by a connecting-rod 8, or a rotary radial-bladed cutter may be used. Material may be removed from the surface between the grooves by a scraper 5 and returned to the molten mass in the trough 2.
Patent GB-523042-A (GB)
Title: A new or improved switch for use with luminous signs adapted to display different symbols within the same frame-area
IPC: G09G3/00
Filed: 1938-12-23
Abstract: 523,042. Monogrammic signs. NEOGRAPH. Ltd., and KNEPPER, F. Dec. 23, 1938, No. 37446. [Class 118 (ii)] [Also in Group XXXVII] Relates to an automatic switch for use with luminous signs of the monogrammic type comprising a layout or arrangement of electric discharge tubes such as that described in Specification 523,192.. According to the invention, the switch comprises a set of contacts connected to the discharge tubes, and selective contact members which are moved relatively to the contacts, and is characterized by the fact that the selectors each include a number of separate contacts which can be permanently interconnected in order to put the required discharge tubes in circuit. Preferably the switch comprises a cylinder x rotatable by a motor z, or by hand, and carrying at its ends slip rings w which make contact with brushes v connected to the secondary of a transformer u. The selector consists of bars y removably secured to the slip rings w so that they can be changed according to the particular letter or numeral it is desired to exhibit. Each bar y carries insulated contacts which are connected with the slip rings and with one another and are arranged to make contact with a selection of contacts B that will display the required letter. The contacts B are mounted in insulated bases in a fixed bar s. In a modification, the selectors are fixed while the bar s is movable. The selector, or the bar s, also may be carried by a rotary arm or disc, or by a drum or belt or other kind of moving member.
Patent GB-1436511-A (GB)
Title: Isomerization of penenenitriles
IPC: B01J31/02
Filed: 1974-08-28
Abstract: 1436511 Isomerization process E I DU PONT DE NEMOURS & CO 28 Aug 1974 [29 Aug 1973] 37607/74 Heading C2C The isomer ratio of the geometric isomers cis- and trans-2-pentenenitrile, and/or cis- and trans- 3-pentenenitrile in a mixture containing either or both pairs of these pentenenitriles, the geometric pair, one of the geometric pairs, or both geometric pairs in the mixture not being at equilibrium ratio is altered and the one or each geometric pair of isomers is brought closer to its equilibrium ratio with substantially no carbon-carbon double bond migration, in a process which comprises contacting the mixture of pentenenitriles at a temperature of 90 to 200 C. with a catalyst consisting essentially of a compound of the formula R 3 CX wherein R is an aryl radical having up to 18 carbon atoms and X is -H, -Cl, -Br, -SH, -I, -B(C 6 H 5 ) 4 , -AsF 6 , -SbF 6 , -PF 6  or -BF 4 ; the amount of catalyst employed being from 1 to 40% by weight, based on the weight of pentenenitriles.
Patent GB-854058-A (GB)
Title: Fully automatic machine for loading and unloading crates, boxes and other containers and packages in stacks
Inventor: SHIRES JAMES WILLIAM NUTTER
IPC: B65G57/00
Filed: 1957-12-05
Abstract: 854,058. Stacking-machines. EXPRESS DAIRY (NORTHERN) Ltd. Dec. 4, 1958 [Dec. 5, 1957], No. 37850/57. Class 94(1). A machine for stacking or unstacking crates &c., comprises a support and means to grip an assembly of crates and deposit them on or remove them from the support, the support being capable of vertical step-by-step motion to receive or present layers of the stack. In stacking, crates C are fed by a conveyer 13 onto a roller platform 14, stops being provided to check incoming crates when two rows have been assembled. The crates are engaged by a gripper carriage 16 running on rails 21 and having a central plate 18 and side plates 17, the latter being pressed against the crates by pneumatic or hydraulic cylinder assemblies A8. The carriage is then raised and traversed to the loading position by cylinder assemblies A9, A10 respectively. The loading support comprises arms 2 raised and lowered by hydraulic means 3 and having associated therewith adjustable valve operating stops 6 by which the stepwise movement is controlled. The first layer of crates is lowered on to a stillage &c., S on the support arms 2 in their upper position and these are lowered step-by-step for each new layer until the stack is complete. The loaded stillage is then pulled to a removal position 12 by a cylinder assembly 11 which at the same time causes an empty stillage fed by a conveyer B on to a rollerway 9 to take up position on the support. The machine is wholly automatic and may be adapted for unloading, and for stacking or unstacking carates &c., on to supporting surfaces other than stillages or the like.
Patent GB-326848-A (GB)
Title: Improvement in folding seats for motor cars
IPC: B60N2/30
Filed: 1928-12-21
Abstract: 326,848. George, J. Dec. 21, 1928. Folding seats.-A folding seat for a motor car comprises in combination front legs 2 pivoted at 4, rear legs 3 pivoted at 5, connecting members 8 pivoted at 6 and 7 and having rearward and upward extensions to which a back-rest 11 is pivoted at 10, downward extensions S of the back-rest 11, and a link 13 so pivoted at 15 to a rear leg and at 14 to an extension S, that when the seat is in position of use, the pivot 14 is located in front of the straight line joining the pivots 10 and 15. By this arrangement, accidental collapsing of the seat is avoided.