baber/WOPTO huggingface dataset:
Patent GB-662657-A (GB)
Title: Improvements in or relating to gearing
IPC: F16H57/04
Filed: 1949-03-04
Abstract: 662,657. Toothed gearing. SPENCER GEARS, Ltd., and SPENCER, S. L. Feb. 10, 1950 [March 4, 1949], No. 5988/49. Class 80 (i) [Also in Group XXXIV] A gear case 1 is provided with one or more straight brass or copper tubes 27 through which convectional air currents pass to cool the oil in the sump. In the example shown a worm 3 drives a worm wheel 14 and the gears are lubricated by an oil flinger 11 rotating in a sump filled to the level L. The tubes are arranged in an inclined position almost wholly beneath the oil surface, and project at each end through the casing walls, being secured in bossed apertures 29, so that the ends of the tubes are open to the atmosphere. The cross-section of each tube may be elliptical or polygonal but is preferably circular. The case 1 and a cover 23 may be provided with external fins to assist cooling. A pivotal inspection plate 24 and a drain plug 26 are provided.
Patent GB-703929-A (GB)
Title: Improvements in the production of tetrahydrofuran compounds
Inventor: SWEENY WILFRED
IPC: C07D307/20
Filed: 1951-03-13
Abstract: 2:5 - Dialkoxytetrahydrofurans are prepared by catalytic hydrogenation of the reaction mixture obtained by reacting furan or a substituted furan of the general formula <FORM:0703929/IV(b)/1> where X and Y may be hydrogen or substituent groups free from olefinic linkages, with bromine or chlorine and a monohydric aliphatic alcohol or alkali metal alcoholate, without isolation of the intermediate 2:5-dialkoxy-2:5-dihydrofuran.  The reaction is preferably carried out in the presence of an inorganic basic substance such as sodium carbonate and the reaction mixture is filtered before the hydrogenation to remove undissolved inorganic material.  In examples, furan is treated with chlorine in the presence of sodium carbonate and the appropriate alcohol and the reaction mixture is hydrogenated in the presence of Raney nickel to give (1) 2:5-diethoxytetrahydrofuran; (2) 2:5 -dimethoxytetrahydrofuran; (3) 2:5-di-n-propoxytetrahydrofuran and (4) 2:5-di-n-butoxytetrahydrofuran.  Specifications 595,041 and 610,876 are referred to.
Patent GB-635892-A (GB)
Title: Bucket elevator
IPC: B65G23/44
Filed: 1946-02-26
Abstract: 635,892. Bucket elevators. DEZILLIE, E. Feb. 26, 1946, No. 6031. [Class 78 (i)] An endless bucket elevator suspended from its driving end, has its lower pulleys connected to a fixed support in such a manner as to be free to rise vertically or move laterally when an obstruction tends to jam the elevator whereby excessive stresses in the elevator are avoided. The bucket 9 are secured to endless chains 4, 5 passing over driving pulleys 2, 3 and idler pulleys 6, 7. The shaft 8 of the latter is supported in a bearing 12 fixed to a rod 10 which is connected to pairs of arms 15, 26 hinged to a wall 11. The arms 26 are pivoted to the bar 10 at 13 whilst the arms 15 pass through sleeves 21 in slots 17 in plates 18 secured to the bar and are provided with springs 19 abutting against the sleeves 21 and stops 20 on the arms to maintain the bar vertical. Vertical movement of the bar 10 is limited by a stop member 23 adjustably supported on joists 22.
Patent GB-525619-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/22
Filed: 1939-02-23
Abstract: 525,619. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 23, 1939, No. 6090. Convention date, Feb. 23, 1938. [Class 39 (i)] In a device comprising a cooled cylindrical metal envelope, a liquid electrode, and transverse metal members which are supported from the side walls of the envelope and provide a tortuous path for the discharge, each member has a flange intimately secured to the side walls. The container comprises headers 15, 16 welded to metal cylinders 10, 11 which are welded at each end to form a space through which water is circulated. An ignition electrode dips into a cadmium or mercury electrode. Flanged sheet-metal segments 34 are welded to the container. The anode seal is screened by a member 24. In another form, the screening is effected by complementary members one of which is arc-shaped. As described in Specification 520,183 starting and maintaining anodes are arranged within a shield, which is slotted at its lower end so that a main cathode spot may be formed externally of the shield. Specification 525,618 also is referred to.
Patent GB-678259-A (GB)
Title: Improvements relating to the cargo pipelines of tank ships
Inventor: LAMB JOHN
IPC: B63B27/24
Filed: 1951-03-14
Abstract: 678,259. Tank vessels. SHELL REFINING & MARKETING CO., Ltd. March 14, 1951, No 6141/51. Class 113 (ii). The cargo tanks are divided into two main groups 1-5, and 6-11, each group being served by a pair of longitudinal pipes 16, 17 and 18, 19 respectively. The pipes have cross-connections 1p, 2p &c. at each tank, each provided with valves and valved tank connections so that each tank can be connected to any of four pumps in the pump room 13 adjacent the engine room 12. Connections are also provided to four separate overboard discharges and to sea water inlets. Bye-passes are also fitted to each pump. Two extra pumps are fitted to strip the residue from the tanks.
Patent GB-932225-A (GB)
Title: Improvements in or relating to cutting of tow into staple fibre
IPC: D01G1/04
Filed: 1962-02-16
Abstract: 932,225. Stapling fibres. ONDERZOEKINGSINSTITUUT RESEARCH N.V. Feb. 16, 1962 [Feb. 24, 1961], No. 6144/62. Class 120 (3). Apparatus for cutting a tow of filaments into staple fibres having small variations in length comprises a rotatable head 13 with knives 17 spaced at unequal intervals therearound, two rotatable draw wheels 1 and 2 between successive pairs of teeth 9 and 10 of which a tow 20 is nipped and thereby advanced. The teeth 9 and 10 have an irregular pitch corresponding to the spacing of knives 17, and the number on each wheel corresponds to or is a multiple of the number of knives. The wheels are connected through bevel gear 12 and a toothed rim 11 which ensure equal peripheral speeds. As the wheels and head rotate, a knife 17 passes through the gap between each two successive pairs of teeth to sever the tow gripped thereby. The teeth 9 and 10 may be clad with elastic material, Fig. 3 (not shown). Specification 926,748 is referred to.
Patent GB-1389186-A (GB)
Title: Chromone derivatives processes for their manufacture
IPC: C07D311/22
Filed: 1973-02-08
Abstract: 1389186 Chromones CHEM PHARMAZ FABRIK DR HERMANN THIEMANN GmbH 8 Feb 1973 [8 Feb 1972] 6248/73 Heading C2C Compounds of the general formula (R<SP>1</SP> = alkyl optionally substituted by a terminal OH, NH 2 , alkylamino or dialkylamino group, aralkyl, cycloalkyl ; R<SP>2</SP> = H, aryl, R<SP>1</SP> or NR<SP>1</SP>R<SP>2</SP> = piperidino, morpholino, piperazino, N-alkylpiperazino, pyrrolidino; R<SP>3</SP> = H, alkyl optionally substituted by a terminal NH 2 , alkylamino or dialkylamino group, acyl, haloacyl, provided that when R<SP>2</SP>=H, R<SP>3</SP> is not acyl or haloacyl) and their acid addition salts are prepared by (a) reacting 3-hydroxychromone with R<SP>1</SP>R<SP>2</SP>NH in the presence of an oxidizing agent or reacting 2-chloro-3-hydroxychromone with R<SP>1</SP>R<SP>2</SP>NH, optionally followed by acylation or alkylation in each case, or (b) alkylating 2-chloro-3-hydroxychromone and reacting the product with R<SP>1</SP>R<SP>2</SP>NH. The above compounds may be used in the treatment of paranoia, schizophrenia and anxiety states in neuroses and in vegetative dystonia, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-703638-A (GB)
Title: Improvements in or relating to a combined buffer and draw-gear cushioning mechanism
IPC: B61G9/06
Filed: 1951-03-15
Abstract: 703,638. Combined buffer and draw-gear. NATIONAL MALLEABLE & STEEL CASTINGS CO. March 15, 1951 [Sept. 1,. 1950], No. 6262/51. Class 103(5) A combined buffer and draw-gear comprises a main spring unit 237.held under. initial compression by followers 236 engag-. ing fore and aft stop lugs 214, 216 in the draught pocket. On either side of the main unit are disposed compensating cushioning. units 242 having followers 234 engaging the yoke 220 to hold the units under an initial compression less than that of the main unit. The yoke 220 holds the followers 234 away from -their respective stop lugs in the neutral position shown but during draught'or buff the appropriate compensating unit 242 expands until the follower 234 engages its associated stop lug. Specifications 651,229, 665,859 and 686,211 are referred to.
Patent GB-431724-A (GB)
Title: A portable microphone amplifier set
IPC: H04R1/08
Filed: 1934-02-27
Abstract: 431,724. Sets. SMITH, R. S., Lingodell, Queen's Avenue, Tunstall, Stoke-on-Trent. Feb. 27, 1934, No. 6268. [Class 40 (iv)] A valve amplifier for use with a microphone and a receiver as a portable set for deaf persons comprises an aluminium or aluminium alloy case, resembling a folding hand camera with carrying strap K, fitted with microphone battery F, anode batteries G packed with sponge rubber J, an accumulator or battery E supported on an ebonite shelf D<1> for heating the filament, and with an ebonite shelf D carrying the valve-holder, microphone transformer and condenser. The batteries E, F, G are covered by a removable panel (not shown). The valve is protected by sponge rubber. The top panel A is fitted with sockets for a three-pin plug connection to a double-button microphone, and with a switch for the filament circuit. A similar panel at the opposite side of the case is fitted with a socket for a two-pin plug connection to the receiver. A back panel opposite the accumulator E is fitted with sockets for a non-reversible two-pin plug connection for an external supply to the filament circuit. Pads of sponge rubber are placed between the batteries E, F, G, and the panels. Specification 154,536, [Class 40 (iv)], is referred to.
Patent GB-374035-A (GB)
Title: Improvements in or relating to editing or examining machines for motion picture films
IPC: G03B21/32
Filed: 1931-02-28
Abstract: 374,035. Combined editing apparatus for sound and picture films. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.- (Assignees of Kuhn, J. J. ; 233, Orchard Street, Elizabeth, and Terry, R. V. ; 8, Nishuane Road, Montclair, both in New Jersey, U.S.A.) Feb. 28, 1931, No. 6327. Convention date, March 1, 1930. [Class 40 (ii).] A film-viewing machine in which the film is traversed through a film guide beneath a mask over which is mounted a viewing lens, is characterized in that the mask and the viewing lens are mounted on separate hinges so that the viewing lens may be raised away from the mask for marking a portion of the film framed by the mask apertures without disturbing the mask and so that the mask may also be raised clear of the film. As shown in Fig. 6, the lens mounting 161 and the masking plate unit 168 are hinged to the pin 172 by the hinges 170, 171 respectively. The lever 174 moves the lens mounting and the masking plate for framing. The rests 169, 162, respectively, position the lens mounting and masking plate with respect to the film. A pressure plate 165 is movable on the studs 178 and is controlled by a spring 179. The masking plate is latched by the spring latch 166. As shown in Fig. 1, a complete apparatus for editing separate sound and picture films and then examining the combined master film after splicing employs a sound reproducing unit 111 comprising the usual lamp 112, slit 113, gate 114 with an associated idler 122, sprocket 121 and pressure roller 125, and the photo-electric cell 115, and a picture film viewing unit as above described. The spools 101, 102 are the take-up and delivery spools for the sound film, and the spools 104, 105 the take-up and delivery spools for the picture film. The various sprockets and spools are driven by gears and belts from the shaft 147, so that the sound and picture films are synchronized. The spools are operated by ratchet clutches and have constant speed friction drive. A jack is provided for a loud-speaker or head phones. The master film may be run through the whole apparatus employing 105 as the delivery spool and 101 as the take-up spool. A motor brush shifting lever controls the direction of motion of the film.
Patent GB-793522-A (GB)
Title: Improvements in and relating to fluid containers
IPC: F16K31/524
Filed: 1954-03-04
Abstract: 793,522. Valves. LYONS & CO., Ltd., J., WHITE, P., and STEELE, A. H. V. March 4, 1955 [March 4, 1954], No. 6362/54. Class 135. A tea or like container 1 has outlets 2-5 at the end of each of which is a tap that comprises a spring-loaded plunger 14 in a cylindrical body having a depending discharge nozzle; each plunger 14 is lifted off its seat whenever an associated horizontal lever 12 is raised or lowered. Each lever 12 is kept in the raised position by cam action until it is lowered by hand whilst it will automatically return to the closed position when it is released after being held in the depressed position. All the levers may be simultaneously depressed by means of a bar 16 with a handle 18, the bar 16 having a link 17 at each extremity pivoted to the end levers 12 and on the same pins 15 as the latter. The bar normally lies across the free ends of the levers and when not depressed any of the levers 12 may be operated; the bar may be raised to an inoperative position. Specification 776,241 is referred to.
Patent GB-433061-A (GB)
Title: Improvements in or relating to the production of hydrocarbon lubricating oils
Filed: 1934-02-28
Abstract: Lubricating-oils are made by treating liquid hydrocarbons poor in hydrogen with a silent electric discharge, and the resulting products still poor in hydrogen are then hydrogenated under elevated temperature and pressure in the presence of a catalyst. Tar or mineral oils, or distillates thereof or products obtained by destructive hydrogenation or extraction of solid carbonaceous materials may be treated.  The initial materials are preferably freed from asphalt and readily polymerisable bodies by distillation, or precipitation with gas oil, paraffin oil, benzine or liquefied hydrocarbons, or by treatment with hydrogen at 150 to 300 DEG  C. The content of oxygen compounds should not exceed 5 per cent.  A lubricating oil distillate obtained by destructively hydrogenating brown coal, and dewaxing and fractionating the product, is treated at low pressure in an ozonisation or voltalization tube at 2,000 to 8,000 volts and at a frequency of 500 to 10,000 Hertz.  Diluents such as illuminating oil may be added.  The resulting viscous oil is led at 250 to 500 DEG  C., over pills of tungsten sulphide with hydrogen under 250 atmospheres pressure.  The resulting oil has a low pour point and high viscosity index.  Tungsten sulphide may be replaced by other sulphides, oxides or halides of the 4th to 8th groups of the periodic system.  Specification 294,099, [Class 2 (iii)], is referred to.
Patent GB-1432076-A (GB)
Title: Self-erecting tower crane
IPC: B66C23/34
Filed: 1974-02-13
Abstract: 1432076 Self-erecting tower cranes SAN MARCO SpA 13 Feb 1974 06496/74 Heading B8B A self-erecting tower crane, shown partially erected, comprises a base 1, a lazy-tongs type of tower 2 and a jib 3 mounting a trolley 21 with a load block 22. The tower 2 is formed of two sets of pairs of levers, juxtaposed to each other and in parallel planes, each set of levers has a lower pair 6, 7 and an upper pair 8, 9 having respective central pivots 11 and pivoted to each other at respective points 10. Rollers 12, 13 are movable on rails formed of sections 4, 5 (the latter being pivoted to the former to reduce the size of the crane base 1 in operation). A winch-motor unit 14 movable with the free end of the lever 7 is used to move the free ends of the levers 6, 7 together to erect the tower 2, the free end of lever 8 being pivoted at 18 to the jib 3, while the free end of the lever 9 carries a roller 19 supporting the jib 3 during erection in a horizontal position. When the tower 2 is fully erected a tie 23 passing over a strut 24 is tensioned and takes the weight of the jib 3 off the roller 19. The tower 2 is pinned to fixed stand 15 in its operating position, Fig. 1 (not shown), and the pivots 10 are connected by a clamping rod 17.
Patent GB-703135-A (GB)
Title: An improved sieve-drum drying machine
IPC: F26B13/16
Filed: 1952-03-13
Abstract: 703,135. Drying fabrics, loose fibrous material, &c. FLEISSNER, H., and FLEISSNER, H., [trading as FLEISSNER & SOHN MASCHINENFABRIK]. March 13, 1952 [March 13, 1951], No. 6517/52 Class 34(1) and 34 (2) In apparatus for drying fabrics, rovings, loose fibrous material &c. in which the material 2 passes over perforated drums S' ... S' and heated air is passed from the outside to the inside of the drums to dry the material, the arrangement is such that the drying air passes through the material twice before being re-heated. The lower drums S<SP>1</SP>, S<SP>3</SP>, S<SP>5</SP> have covering plates 6, 7, 8 angularly adjustable and in the lateral space between the upper and lower drums are provided covering plates passing from a to b, c and like points to k, and the portions c, d, e and f, g, h form part of the suction pipes Z<SP>2</SP>, Z<SP>4</SP> by which the interiors of the drums S<SP>2</SP>, S<SP>4</SP> are connected to the lower part of the chamber, the lower drums having openings leading to fans V so that the drying air passes through the material on the upper drums, through the pipes Z<SP>2</SP>, Z<SP>4</SP> into the lower part of the chamber where it again passes through the material lying on drums S<SP>1</SP>, S', S<SP>5</SP> and is propelled by fans V over heaters H and back to the upper part of the chamber.
Patent GB-951660-A (GB)
Title: Metal clad laminated materials
Inventor: SWEET JOHN THOMAS
IPC: H01B1/00
Filed: 1961-02-22
Abstract: 951,660. Laminates. FORMICA INTERNATIONAL Ltd. April 19, 1962 [Feb. 22, 1961], No. 6563/61. Heading B5N. A resistor foil, comprising, for example, a copper-nickel alloy, is bonded to a base of a paper, fabric or other fibrous base impregnated with an uncured or partially cured thermosetting resin by coating one side of a fibrous sheet, impregnated with uncured or partially cured thermosetting resin, with an adhesive solution in acetone of a nitrile rubber and a phenolic resin, forming a stack with the foil on the coated side and the base on the uncoated side of the sheet, and consolidating the assembly under heat and pressure. The resin content and volatile content of the impregnant used, and the solids content of the adhesive solution and the amount applied per unit area, are confined between specified limits. The foil is preferably degreased, as by suspension in trichlorethylene vapour, and etched, e.g. by immersion in ferric chloride solution, before application. In an example a sheet of kraft paper is impregnated with methyl alcohol solution of a phenolformaldehyde resole and dried to give a resin content of 32% and a volatile content of 9%. The sheet is then coated with an adhesive solution in acetone of a mixture of nitrile rubber and phenolic resin and dried to give a coating of 62 gms. per sq. metre. A stack comprising the degreased and etched foil, the coated sheet, coated side down, and six sheets of dried phenolformaldehyde impregnated paper sheets is then made and consolidates between polished steel press plates at 140‹ C. The product may be used in connection with the making of printed circuits.
Patent GB-564003-A (GB)
Title: Electron lens
IPC: H01J29/62
Filed: 1943-04-30
Abstract: 564,003. Electron lenses. STANDARD TELEPHONES & CABLES, Ltd. April 30, 1943, No. 6854. Convention date, May 7, 1942. [Class 39 (i)] An electron lens of small diameter and great focal length comprises two cylinders 5, 6 of equal diameter D spaced apart axially a distance S such that the ratio S/D is greater than a quarter. Preferably, the ratio is between 0.5 and 3.0, the most useful range being 0.75 to 1.25 including the value unity. The positive potential V2 applied to 6 may be between 1 and 10 times, preferably less than 5 times, that (V1) applied to 5. The other elements of the cathode-ray tube shown are cathode 1, heat shield 2, concentrating electrode 4 and anode 3, electrodes 3, 4, 5 and 6 being supported on insulating rods 7, 8. The relation between the focal length, the magnification and the voltage ratio V2/V1 is shown graphically.
Patent GB-1452634-A (GB)
Title: Manufacture of solar cells
IPC: H01L31/0216
Filed: 1974-02-13
Abstract: 1452634 Solar cells COMMUNICATIONS SATELLITE CORP 13 Feb 1974 [13 Feb 1973] 6590/74 Heading H1K A p-n junction solar cell having its top surface completely covered by an anti-reflective coating 24 and an electrode, of which bonding pad 22 and inter-connected fingers 18 can be seen in Fig. 2, is provided beneath the bonding pad 22 with a pad 26 of thermally insulating material which protects the semi-conductor body 12/14 against thermal damage during bonding of inter-connections. The protective pad 26 may be of the same material as, and formed simultaneously with, the anti-reflective coating 24, suitable materials being amorphous tantalum pentoxide or niobium pentoxide or titanium oxide, produced by thermal or anodic oxidation of a deposited layer of Ta, Nb, or Ti. Alternatively the protective pad 26 may be formed of a different material and/or in a separate processing step from the anti-reflective coating 24. Two distinct process sequences are described, in one of which an Au/Cr top electrode is deposited directly on to the semi-conductor surface where it is exposed by apertures through the anti-reflective coating Fig. 4 (not shown), and in the other of which Au/Cr for the top electrode is deposited in the desired pattern on a layer of Ta, Nb or Ti, the exposed parts of which are then oxidized to form the anti-reflective coating while the covered parts remain to form a lower layer of the electrode.
Patent GB-114407-A (GB)
Title: Process for the Preparation of Anhydrous Sulphide of Zinc.
Inventor: COMMENT PAUL
IPC: C01G9/08
Filed: 1917-05-09
Abstract: 114,407. Comment, P. March 28, 1917, [Convention date]. Addition to 106,489. Pigments.-Zinc sulphide in a white stable form is prepared by calcining a mixture of zinc pentasulphide and zinc sulphate or sulphite with or without alkali sulphate. The zinc pentasulphide may be partially decomposed, as is the case when the precipitated pentasulphide is dehydrated, and a mixture of pentasulphide and sulphur may be used instead of the pentasulphide. It is preferred to use an excess of the pentasulphide, and, when no alkali sulphate is used, to maintain the mixture at about 500‹ C. for some time before raising it to the temperature necessary to make the product stable. Barium sulphate may be mixed with the mixture to be calcined, lithopones being then obtained.
Patent GB-216948-A (GB)
Title: Improvements in or relating to the agglomeration of coal
IPC: C10L5/10
Filed: 1923-03-07
Abstract: 216,948. Wood, L. A., Jenkins, A. W., and Minerals Separation, Ltd. March 7,1923. Emulsions, making.-In preparing colloidal emulsions of viscous organic binders such as tar, for the agglomeration of coal, alkaline emulsifying agents such as soap, alkaline hydrate, alkaline carbonate, alkaline sulphide, sodium silicate, resin soap or mixtures of these may be used, the water or other liquid being the continuous phase. The emulsion is best prepared by violent agitation, for example in a colloid mill. Preferably a protective colloid such as glue or sugar is used. Specifications 14841/11, 155,875, and 167,738, [all in Class 50, Fuel, Manufacture of], 178,558 and 202,231 are referred to.