baber/WOPTO huggingface dataset:
Patent GB-755373-A (GB)
Title: Preparation of alkali metal monoaliphatically substituted amides
Inventor: HUMPHREYS DAVID DRUEN
IPC: C07C233/00
Filed: 1954-07-06
Abstract: Alkali metal amides of the formula R-NH-M (M = alkali metal) are prepared by reacting R-NH2 with metal amides M-NH2 the ammonia being removed from the reaction zone during the reaction; R is alkyl, cycloalkyl or alkyl-substituted cycloalkyl.  The reaction is preferably carried out in the absence of substances which would cause side reactions, e.g. water, oxygen, alcohols and organic halides. Inert solvents such as hydrocarbons may be present, or else an excess of the amine R-NH2 may be used.  Suitable temperatures are 20-150 DEG C., preferably 50-100 DEG  C., and continuous agitation is desirable. The radical R may have 1-18 carbon atoms but those up to 8 are preferred.  The ammonia given off may be recovered.  Examples are given of the preparation of the sodium derivatives of isopropylamine, n-butylamine, cyclohexylamine, n-octylamine, tert.-amylamine and ethylamine.  R may also be methyl or other alkyl radical up to octadecyl, cyclopropyl, cyclobutyl, cyclopentyl, cycloheptyl, cyclo-octyl or various alkylcyclohexyl radicals.  M may also be lithium, potassium, caesium or rubidium.
Patent GB-961205-A (GB)
Title: Improvements relating to automatic telephone systems
Inventor: KINSEY RONALD WILLIAM STANLEY
IPC: H04Q3/42
Filed: 1960-06-03
Abstract: 961,205. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 4, 1961 [June 5, 1960], No. 19839/60 Heading H4K. A substation circuit includes a frequencyshift transistor oscillator VT1 powered by D.C. over the line for sending V.F. impulses under the control of dial springs DL, one frequency corresponding to " makes " and another to " breaks," and the particular permutation of frequencies represents the identity of the substation for party-line working or the class of service to which the subscriber is entitled or both. For this purpose a lock switch LS is provided having change-over contacts LSA, LSB operable by a key and terminals for crossconnecting to tappings on the primary winding of the output transformer TR1 for determining the frequencies in conjunction with a capacitor C12. The secondary of the transformer TR1 is connected to the line by the closure of dial offnormal springs DLA, and the insertion of a series resistor R3 reduces the line current sufficiently to release relay LX, Fig. 2, thus connecting in the V.F. receiving equipment. The latter comprises a 2-stage transistor amplifier VFA feeding tuned transformers TR3 ... TR6 which controls relays A ... D through rectifiers RB and transistors VT4, VT5. Relays A ... D each control a pair of relays, Fig. 3 (not shown), responding respectively to "make" and " break " impulses and feeding into a register which records the number of digital impulses and also the frequency permutation. The substation dial is preferably such that the first and last " make " impulses are lengthened. Instead of relays electronic bi-stable devices may be employed in the receiving equipment.
Patent GB-219505-A (GB)
Title: Improvements in and relating to vaporization of liquids
IPC: B01D1/16
Filed: 1923-08-03
Abstract: 219,505. Nyrop, J. E. Aug. 3, 1923. Air or gas pressure sprayers; rotary apparatus. -Liquids are atomized by blowing a jet of air, gas, vapour, or a mixture of these against a rotating jet of liquid, the flow of one fluid being counter-current to the other. The jet 1, Fig. 1, supplied with liquid is rotated and air &c. supplied through the pipe 4. The pipe 1 may be provided with helical vanes for feeding the liquid. The tubes may project into a reaction chamber 13 which may either be stationary or rotate with the tube 1. If the liquid is to react with gases they may be supplied through passages 15, 16 and be evacuated through passages 17, 18. The pipes 1, 4 may be formed with flared, funnellike outlets 3, 5, Fig. 3, the pipe 1 may be provided with helicoid grooves 6 and a vertically adjustable spreader 8 may be provided. In the form shown in Fig. 4, the liquid is supplied by a tube 10 which passes through the spreader 8 into the tube 1 which is closed at its upper end.
Patent GB-478070-A (GB)
Title: Improvements in or relating to loading machines for mines
IPC: E21C27/02
Filed: 1936-07-20
Abstract: 478,070. Mining-machines. MINING ENGINEERING CO., Ltd., and MOORE, M. S. July 20, 1936, No. 20023. [Class 68 (i)] In a loading-machine for mines with an outwardly projecting loading device comprising a loader bar and a conveyer alongside thereof, a pivotally mounted shearing device is arranged at the end of the loader frame and in operative position extends across the end of the conveyer, while when inoperative it is adapted to be swung into alignment with the conveyer. The loader frame is pivoted at 6 and carries a conveyor 4 and a comb 30 co-operating with a loader bar 5. A cutter-chain jib 8 is carried by a bearing 12 adjustable by worm and toothed sector 26 in a bracket 7, the chain being driven by shaft 13 or 13<1> through shaft 15 and flexible couplings 16, 16<1>, while the other shaft 13 or 13<1> drives the conveyer and loader bar. The chain jib is held in operative position by a lug 17 on bracket 7 bolted to the loader frame, and an arm 19 pivoted on a pin 20 ; on releasing the lug 17, the chain jib may be swung into alignment with the conveyer and locked by an angle piece connecting the lug 17 and loader frame. Cutter disks 23 may be provided at each side of the chain jib and driven by the cutter chain. The chain jib, bracket 7 and loader bar are reversible for loading in either direction. The shearing device may be used with a machine for simultaneous cutting and loading or with a machine with two loader bars. Specification 421,114, [Group XXX], is referred to.
Patent GB-242570-A (GB)
Title: Improvements in or relating to the lubrication of the journals of the axles of railway or like vehicles
IPC: B61F17/22
Filed: 1925-08-10
Abstract: 242,570. Dear, V. N. Aug. 10, 1925. Lubricant conveyed by m e c h a n i c a l means.-The journal 1 of a vehicle axle is lubricated by a, member 20 which is caused alternatively to dip into oil in the axlebox and to rise into contact with the journal, the member being maintained in contact with the journal during several revolutions of the latter and being allowed to pause when in the oil, the rise and fall being relatively rapid. The member 20 is carried bv arms 19 fixed to a shaft 16 which is oscillated by the engagement of a roller 18 on an arm 15 with a cam 14 carried by a ratchet wheel 11 operated by a pivoted pawl lever 7, 10 actuated by a rod 5 from an eccentric 3 on the end of the journal 1. The arms 19 may be flexible, or the roller 18 may be spring mounted. Alternatively, the pawl lever may be adapted to be actuated by a projection 29 on the end flange of the journal. The member 20 is in the form of a hollow cylinder which rotates on a spindle 21 when in contact with the journal. Oil enters the interior of the cylinder, which may be filled with absorbent material, through holes 24 in its end walls, and, during the rotation of the cylinder, flows through perforations 26 to a covering 27 of felt or the like.
Patent GB-221490-A (GB)
Title: Improvements in or relating to motor suspension systems for electric locomotives and other electrically propelled vehicles
IPC: B61C9/50
Filed: 1924-08-25
Abstract: 221,490. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Bethel, C.). Sept. 8, 1923, [Convention date]. Universal joints.-In a motor suspension and transmission system, each axle 4 is driven from its motor 1 through toothed gearing 19, 20, the wheel 20 being flexibly connected to its axle as shown in Fig. 4. An outer toothed part 25 is spherically mounted on an inner part 21 fixed to the axle 4 while the drive is transmitted through radially disposed leaf springs 29.
Patent GB-1304982-A (GB)
IPC: B22D7/10
Filed: 1971-04-19
Abstract: 1304982 Ingot mould hot tops E VALLAK 19 April 1971 [2 Feb 1970] 20142/71 Heading B3F [Also in Division C3] Ingot stripping is facilitated by the use of a hot top, composed of porous concrete, fibrous cellulosic material, binder and sand, which produces a smooth thin vitrous mineralic layer when contacting the molten metal. The hot top may be of one-piece construction or composed of slabs.
Patent GB-221211-A (GB)
Title: Improvements relating to the supply of extra air for internal combustion engines
IPC: F02D9/00
Filed: 1924-08-26
Abstract: 221,211. Lawson, J., and Vickery, S. May 16, 1924, [Convention date]. Spray carburettors.-An extra air valve comprises a piston valve 17 controlling air admission openings 16 in a fixed sleeve 12 communicating with the carburettor, the valve being connected by a rod 18 to a centrifugal governor carried by a sleeve 8 driven from the engine. The governor comprises weights 26, 27 connected by links 28, 29 to a cross piece 20 threaded on the rod 18, and by links 24, 25 to the sleeve 8. Means, such as a Bowden ccntrol actuated from the dashboard, may be provided to cut off the air supply. According to the Specification as open to inspection under Sect. 91 (3) (a) the piston valve 17 may be replaced by a sleeve valve. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1514063-A (GB)
Title: Hand operated knitting machine
IPC: D04B15/36
Filed: 1976-05-18
Abstract: 1514063 Knitting machines F KOIKE 18 May 1976 [24 June 1975 (4)] 20367/76 Heading D1C A flat links, links knitting machine has double ended latch needles 100 one of whose hooks acts as a butt when the other hook is used for knitting.
Patent GB-639456-A (GB)
Title: Improvements in or relating to wall constructions
IPC: E04B2/30
Filed: 1948-07-30
Abstract: 639,456. Hollow walls ; blocks ; tiles. AFRICAN BUILDING CO., Ltd. July 30, 1948, No. 20381. Convention date, Jan. 20. [Classes 20 (iii), 20 (iv) and 87 (i)]-  A wall comprises two interspaced honeycombed plates 1, 2, 11, 21 with ribs of hexagonal cross-section and with the openings obturated by tiles or the like 3, 3<SP>1</SP>, and frames 4 bevelled at the outsides correspondingly to the ribs of the adjacent plate against which they lie. Adjacent wall plates are coupled by bolts 7, and slotted ties 8 pass over these bolts to join the spaced plates. The tiles are bevelled to form grooves 10, and the outer ribs of the plates are recessed to form grooves 11. The tiles are secured to the plates by S-shaped strips 12, or wedge pieces 13, 14 joined by bolts 15, and the grooves may then be filled with mortar. The frame has a strip 5 seated between the honeycombed plates and a metal weather board 6.
Patent GB-385889-A (GB)
Title: Improvements in and relating to gas turbines
IPC: F01D5/28
Filed: 1932-07-19
Abstract: An alloy for the blade wheels, nozzles, valves, and casing parts of a turbine contains 0,5-5 per cent of beryllium.  The main constituent of the alloy may be iron or aluminium.  A suitable aluminium alloy may contain 0,5-5 per cent of beryllium, 0,5 per cent of magnesium, 3,5-5,5 per cent of copper, and 0,5-0,8 per cent of manganese.
Patent GB-1022581-A (GB)
Title: Purification of lactams
Filed: 1963-05-22
Abstract: In a process for refining a crude lactam in which the lactam is oxidized with an oxidant in aqueous solution and distilled, the oxidation is conducted in aqueous solution at a concentration in the range of 55-90% by weight. The oxidation is preferably carried out at 20-45 DEG  C.  After the oxidation the solution is filtered, neutralized with an acid-binding material, preferably a strongly basic anion exchange resin, and promptly distilled. Preferred oxidants are potassium permanganate or hydrogen peroxide.  Potassium permanganate may be used in dilute solution in such an amount that the pink colour imparted to the mixture persists for 15 minutes at ambient temperature.  Suitably, the amount of other oxidants used is equivalent to this amount. The oxidized solution which is neutralized with the acid binding material preferably contains at least 60% by weight of lactam, but may be diluted with water to about 20% concentration before neutralization.  On another form of procedure, the oxidized solution is stripped of water and the residue dissolved in benzene and treated with an insoluble acid salt and insoluble basic material each in an amount in the range of 1-5% based on the weight of lactam, and the lactam recovered by distillation.  The benzene solution may instead be passed through a column of polar adsorbent, e.g. activated alumina, prior to distillation.
Patent GB-204784-A (GB)
Abstract: 204,784. Colville, J. L. July 7, 1922. Ready-reckoning apparatus.-The apparatus comprises a series of slotted cards, products being printed between the slots and on both sides of the cards, so that when one. card is reversed and placed on another card, the products on the rear card are visible through the slots in the reversed front card. The cards shown have four columns of slots 5 for shillings, pence, and eighths and sixteenths of a penny, the products being printed on the parts 6 between the slots and on both sides of the cards. For holding the two cards in use, there is a cover 22, hinged at 24 and divided at 23 and having slots 21 to expose the products on the cards, the slots 21 being marked at their left-hand edges with the multiplicands 0 to 10/-, 0 to 11d. and so on. In the example shown, Fig. 1, the card 570 (i.e. card 57 reversed) is superposed on the card 98, the side 570 being marked with the products 13<a> for the multiplier 570 and the' card 98 bearing the products 12a for the multiplier 98,000, these products 12<a> being visible through the slots 5 in card 570. Opposite each multiplicand is a bracket 17 which embraces a product on each of the cards 570 reversed and 98, so that the sum of the products embraced by any one bracket is the product of that multiplicand and the multiplier 98570. The cover 22 may be embodied in the lid and in one side of a box designed to store the whole of the series of cards, and the apparatus may be also used' for division. To facilitate calculations involving several groups of figures cursors are provided with projections to slide along the edges of the cover slots and having slots the width of the slots on the cards.
Patent GB-785751-A (GB)
Title: Improvements in and relating to the purification of germanium
Inventor: REYNOLDS FREDERICK MURRAY
Filed: 1952-08-15
Abstract: Germanium tetrachoride in association with such an amount of aqueous hydrochloric acid of 5.5 to 6N strength to form a second liquid phase, is distilled in the presence of suficient chlorine to saturate the system whereby the arsenical contamination is reduced to 0.005 p.p.m. or less.  The chlorine may be generated in situ by the addition of an oxidizing agent such as potassium dichromate or chlorate, but is preferably added from an outside source.  The tetrachloride may be converted by hydrolysis to the dioxide which has an arsenic contamination of 0.01 p.p.m. or less.
Patent GB-1368691-A (GB)
Title: Well packer
IPC: E21B33/1295
Filed: 1972-05-03
Abstract: 1368691 Wells &c DRESSER INDUSTRIES INC 3 May 1972 [24 May 1971] 20605/72 Heading ElF A packer comprises a support 1, 11, 31, 47, a packer body 25 carrying packing 25a, 25b, a cylinder 38, a tubular member 19, pistons 28, 39 between the support and the cylinder forming a chamber A filled with fluid, a passage 34a from the chamber through the support, means 34 for closing the passage, and means 32 moved by a tool (not shown) to break the means 34 to connect the chamber to the interior of the support. Prior to running the packer into the well the chamber A is filled with liquid, the piston 28 being fixed during filling. The packer is attached to tubing and lowered to the desired level, changes in the temperature or pressure differential between the exterior of the packer and the chamber being compensated for by expansion or contraction of the liquid in the chamber. A setting tool (not shown) moves the sleeve 32 upwardly to shear the plug 34 and place ports 32c opposite the plug passage 34a to open the chamber to the interior of the support. Fluid pressure is applied to the interior of the tubing to increase the pressure in the chamber. The increase in pressure in the chamber shears a pin 44 and forces the cylinder 38 upwardly and the piston 39 downwardly. The downward movement of the piston 39 pivots and sets slips 49 whilst the upward movement of the cylinder 38 expands packing 25a, 25b and pivots and sets slips 8, locks 36 being freed by the downward movement of the piston 39. The packer is disengaged by an upward pull on the tubing which shears a pin 52 to free a slip control housing 50 to disengage the slips 49 whilst the upward movement of the valve 18 may be set to isolate the annular areas in the casing above and below the set packer.
Patent GB-919715-A (GB)
Title: A portable drawing board or tray
IPC: A47B23/00
Filed: 1960-06-13
Abstract: 919,715. Tables. STANBROOK, F. W. S. March 23, 1961 [June 13,1960], No. 20632/60. Class 52 (3). [Also in Group XV]- A drawing board or tray is provided with hinged hangers 4 which are adapted to be moved from a collapsed out-of-use position in which they lie flat against the underside of the board to an in-use position in which they extend upwardly, the upper ends of said hangers being adapted to hook over the shoulders of a user. The lower limbs 3 of the hangers are loaded by springs 6 housed in sleeves 7 positioned between brackets 2. The springs are held between abutments 3a on the limbs 3 and one of each pair of brackets 2. Alternatively, each spring is positioned between an abutment 9 on the outer end of a limb 3 and the adjacent bracket 2. Notches 8 in the rear edge of the board retain the hangers in the upright position. The underside of the board may be provided with clips or stops to retain the hangers in their out-of-use position. According to the Provisional Specification, the board may carry an elastic waist band.
Patent GB-508143-A (GB)
Title: Improvements in a coin-freed article dispensing apparatus
IPC: G07F11/54
Filed: 1938-07-12
Abstract: 508,143. Refrigerators. RAMSEY, A. R. J. (Liquid. Carbonic Corporation). July 12, 1938, No. 20645. [Class 29] [Also in Group XVIII] An article dispensing apparatus, particularly a coin-freed apparatus, which is provided with a refrigerating mechanism, comprises a cabinet 12 having the refrigerating mechanism disposed in a separate dome 13, Fig. 3, above a compartment containing the dispensing mechanism, the cooling means 43, 44 extending through a separating panel 36 into the dispensing compartment. A storage compartment 130, Fig. 4, in which the articles are pre-cooled before being placed in the dispensing mechanism is provided below the dispensing compartment and is separated therefrom by baffles 132 which allow a limited circulation of air between the two compartments from an air circulating fan 47 associated with the refrigerating mechanism. Condensed refrigerant is fed to a delivery line 43 having a set of expansion coils 44 arranged below the panel 36.
Patent GB-341028-A (GB)
Title: Improvements relating to photo-mechanical printing
IPC: G03F3/04
Filed: 1929-07-05
Abstract: 341,028. Photo-mechanical printing. DITTMANN, T., 4, Hinter der Kirche, Neumunster, Germany. July 5, 1929, No. 20679. [Class 98 (ii).] The separate images for the colour printing surfaces required for multi-colour printing are obtained from a single photographic image, the required density gradation of each image being obtained by a series of partial exposures through a plurality of different masks used in succession and with different exposures through successive masks. Half-tone screens may be used during the exposures. The single photographic image may be a diapositive and the reproduction thereof effected by contact printing through a half-tone screen. A particular process for three-colour printing is described.
Patent GB-1181385-A (GB)
Title: Improvements in or relating to machines for assembling insoles on lasts
IPC: A43D11/00
Filed: 1967-05-04
Abstract: 1,181,385. Assembling insoles on lasts. BRITISH UNITED SHOE MACHINERY CO. Ltd. 4 May, 1967 [5 May, 1966], No. 20679/67. Heading A3B. A machine for assembling insoles on lasts comprises Storage means for storing left and right insoles, one of which depending on the detected shape of a last positioned at an assembly station is fed to guide means for guiding the insole down on to the last bottom, to which it is retained in accurate alignment by hold down means. As described, a table 10 Fig. 4 carrying four last supporting spindles 12 is first rotated through 90 degrees by a cylinder 56, a one way clutch permitting the return of its piston rod without returning the table 10. The spindle 12 is lifted by a piston rod 90 until a light beam between a photocell 142 and a source 140, Fig. 3 is interrupted by the last L whereupon the upward movement of the piston rod 90 is arrested and the last is held in an elevated position. Carriages 158, 160 are moved towards the last by cylinders 244, 254 until members 170, 172 and 190, 192 Fig. 3 mounted thereon engage the heel and toe portions of the last, after which the toe end is further supported by a toe rest 700 moved into position by a cylinder 710. Depending upon whether a left or right last is positioned at the assembly station, a beam or light extending along an axis X is respectively interrupted or uninterrupted to cause an insole to be fed from an appropriate magazine 40 pivoted to the side wall 30 of the machine, one magazine containing a stack of left insoles and the other a stack of right insoles. The stack of insoles in each magazine 40 is urged against the front wall 320 of the magazine and a stop finger 352 by fingers 346 carried by pivoted arms 344, and by rods 360 on to a platform 340 Fig. 6, mounted in grooves or wnich are members 372 which push the lowermost insole of the stack towards the last upon reciprocation of the platform 340 by a cylinder 406. The insole is guided down on to the last bottom by guide members 210, and guide members mounted on the last engaging members 170, 172 and 190, 192. After the insole has been positioned on the last, cylinders 602, 632 mounted on the carriages 158, 160 are actuated to cause abutment members (682, 694) (Fig. 5, not shown) to first engage the insole followed by tacking devices 620, 650 for automatically driving tacks through the insole into the wooden last as disclosed in Specification 780, 719. The insole may alternatively be secured to the last by adhesive. The operating cycle is continuously repeated by a rotating cam shaft actuating microswitches, which energise solenoid valves for operating the various cylinders of the machine.
Patent GB-720280-A (GB)
Title: Improvements in or relating to paperhanging racks for use in the papering of ceilings and friezes
IPC: B44C7/06
Filed: 1951-09-03
Abstract: 720,280. Band clips ; clamps; stud and socket fastenings. BEDDOW, H. Aug. 8, 1952 [Sept. 3, 1951; July 30, 1952], Nos. 20699/51 and 19212/52. Class 44. [Also in Group X] A supporting column 1, Fig. 2, for a paperhanging rack (see Group X) as secured to a pair of household steps by a band clip 24, Figs. 2, 4 having outwardly directed wings 27 engaging with a slotted flat collar 28 secured to wooden block 30 which is held on the uppermost tread 31 by means of a block 32 having slotted plates 33 through which pass fixing bolts 35 passing also through the block 30, the blocks 30, 32 having lugs 36, 37 which grip the edges of the tread 31. The slotted plates 33 permit adjustment of the blocks to fit treads of differing width.