baber/WOPTO huggingface dataset:
Patent GB-516056-A (GB)
Title: Manufacture of compounds of the cyclopentanopolyhydrophenanthrene series
IPC: C07J75/00
Filed: 1938-05-30
Abstract: 516,056. Sex hormones. SOC. OF CHEMICAL INDUSTRY IN BASLE. May 30, 1938, No. 16116. Convention date, May 29, 1937. [Class 2 (iii)] Derivatives of higher homologues of cyclopentanopolyhydrophenanthrene are prepared by condensing a compound of this series having a nuclear CO-group in the 17-position with an alpha-alpha-dihalogen fatty acid ester or a substitution product of such an ester in the presence of an element of the second group of the periodic system. The preferred condensing agent is magnesium, which is usually used in the form of an amalgam. If the parent material contains free hydroxyl groups these are protected by esterification. Fatty acid esters mentioned include dihalogen acetic acid esters, alpha : alphadihalogen propionic acid esters, or substitution products thereof such as an alpha : alpha-dihalogen-#- acyloxy-propionic acid ester. Unchanged starting material is preferably removed by the use of a ketone reagent. The condensation- -products may either be saponified by treatment with an alkali or they may first be reacted with a salt of a carboxylic acid, and the product then saponified by an acid or an alkali during which operation a carboxyl group may be split off to yield glycidic acids or keto derivatives of dihydroxy acids. In examples (1) magnesiummercury amalgam is added to an ethereal solution of dehydroandrosterone acetate and dichloracetic acid ester. After 15 minutes shaking the reaction mixture is acidified, the unchanged starting material removed, and the residue extracted with ether to give a 3- acetoxy-#<5>-androstene-diol-3 : 17 - monochloracetic acid ester-(17). (2) The crude ester obtained above was treated with potassium acetate for 10 hours to give 3-acetoxy-#<5>- androstene-diol-3 : 17-alpha-acetoxy-acetic acid ester. (3) The product obtained in example (2) is hydrolyzed in alcoholic sulphuric acid to give 3:17: 20-trihydroxy-20 carboxylic acid together with 3-hydroxy-20-keto-20 carboxylic acid. (4) The crude ester produced in example (1) is hydrolyzed with alcoholic potassium hydroxide to give the same 3 : 17 : 20- trihydroxy-20-carboxylic acid as is obtained in example (3). Specification 483,670 is referred to.
Patent GB-755281-A (GB)
Title: Improvements in machines for the treatment of materials in webs
IPC: B41F13/00
Filed: 1954-06-01
Abstract: 755,281. Operating clutches. MANUFACTURE DE MACHINES MODERNES. .June 1, 1954 [June 1, 1953], No. 16226/54. Class 80(2) [Also in Group XVI] A machine for printing on webs comprises a series consisting of at least two parts or apparatus controlled from one motor, one part being capable of being stopped independently of the other. Where there are two parts, they are driven from two different shafts, one a driving shaft and the other a driven shaft, between which there is provided a coupling and uncoupling device arranged so that coupling can occur only when the relative position of the parts is that which existed when uncoupling occurred. A driving shaft 11, Fig. 5, drives directly through worm gearing a plurality of photogravure printing couples, which it is desired shall continue to rotate if for any reason the web feed is interrupted. A shaft 12 drives web feed, perforating, embossing and rewinding apparatus, and is driven from the shaft 11 through a gear train 15, 14, 13, and a dog clutch 24, 16, the gear 13 and clutch member 24 being loose on the shaft, and a sleeve 17 carrying dog-tooth 16 being keyed thereto. To stop the part driven by the shaft 12, a lever 22 is moved to disengage the clutch. The dog-tooth 16 is eccentric and can therefore only reengage the groove in the member 24 when the pinion 13 is in the same angular position as when disengagement took place. However, the shafts 11, 12 do not rotate at the same speed, and an additional device is therefore necessary to prevent reengagement except when both shafts are in the required position. The shafts 11, 12 drive respectively through worm gearing gears 27, 28, respectively keyed on and rotatable on an intermediate shaft 29. The gear 28 is engageable with the shaft 29 through a similar dog-clutch 30, 31 controlled by a lever 33 keyed to a shaft 23 to which the lever 22 is also keyed. The gears 27, 28 are arranged to rotate at the same speed when both shafts 11, 12 are rotating. It is thus impossible to move the lever 22 to re-engage the clutch 24, 16 unless the shafts 11, 12 are in the correct relative position to allow the re-engagement also of the clutch 30, 31, although the groove in the latter is slightly bevelled to allow a little play. In another form, Fig. 7, movement of the lever 22 to the left causes a screw 49 to move the lever 20 and open the clutch 24, 16, whereupon a lever 36 locks it in the open position against the action of springs 38. Movement of the lever 22 to the right causes a lever 33 to move a ring 32 on the intermediate shaft 29 against a ring 40, so that when the shafts 11, 12 and therefore the rings 32, 40 are in the correct relative angular position, a stud 46 contacts a conductive arc 43 on the ring 40 to 'close a circuit to a solenoid 51 and release the lever 20, whereupon the clutch 24, 16 closes provided the shaft 12 is in the correct angular position.
Patent GB-254867-A (GB)
Title: Improvements relating to weight indicators
IPC: G01G23/20
Filed: 1925-06-24
Abstract: 254,867. Day & Millward, Ltd., Booth, F. A., and Keach, H. June 24, 1925. Index type-bar machines for recording readings in weighing-machines.-The weight indicated on discs c is printed on a card j by pressing the card-support k by means of a lever i against type h on rack-bars c by which the discs are rotated.
Patent GB-329851-A (GB)
Title: Batten clamps
IPC: B63B19/24
Filed: 1929-05-28
Abstract: 329,851. Watson, F. W. May 28, 1929. Hatch fastenings. - The clamp for holding a tarpaulin against a hatch coaming where the edges of the tarpaulin are secured under a batten resting on stops on the coaming is characterized by the provision of means for engaging the clamps to exert an inward and downward thrust thereon so as to force them against the outer faces and upper edges of the battens. The tarpaulin 3 is passed between the batten 10 and the hatch coaming 1 and is held taut by an inclined hook 8 which has a conical boss member 11. The batten 10 rests on a stop 4 which has a screwed extensions 5 adapted to take a tightening member 13 having an internal coned end 12 adapted to seat upon and force over the boss 11 of the clamp and thus tighten it on the batten.
Patent GB-396910-A (GB)
Title: Improvements in book covers or protectors
IPC: B42D3/04
Filed: 1932-06-10
Abstract: 396,910. Loose covers for books &c. BIRCH, F. G., 64, Chamberlayne Road, and COOK, J. E., 26, Station Road, both in Kensal Rise, London. June 10, 1932, No. 16443. [Class 16.] A loose cover for a book or the like comprises a sheet of material folded over at its ends to provide flaps, and flexible extensible strips connected across the cover substantially parallel with the folded ends and passed through the flaps to grip them on the front and back covers of the book or the like. As shown in Fig. 1, the loose cover comprises an outer sheet 1 and an inner sheet 2 of opaque material such as leather cloth or linen cloth, or transparent material such as oiled silk or tracing cloth, united by sewing along the seams 3, each vertical edge of the sheet 1 being doubled over to provide a flap 4. Each flap is folded on itself and the end of the material is secured beneath a cardboard &c. stiffening-sheet 5 inserted at one side of a central portion 6 of the cover. The book is held in position by inserting the free edges of its cover under elastic strips 7 which are secured at their ends under the sheets 5 and carried through the tubular flaps 4. Handles 22 may be fitted to both sides of the cover. In the form shown in Fig. 3, each flap 4 has slots 10 engaged by a wide elastic strip 7a formed with one or more hooks 11 at each end, which are detachably engaged in eyes 12 formed in flaps 13 folded over from the horizontal edges of the cover. Instead of hooks and eyes the ends of the elastic strips 7a may be fitted with T-shaped pieces of metal which are engaged in eyeleted slots in the horizontal flaps. The title &c. may be exposed through openings 19a, 20 in the loose cover; such openings may be formed by cutting the outer sheet 1 and folding the material inwardly between the two sheets 1, 2 and then cutting away the exposed portion of the sheet 2. The openings may be covered by celluloid &c. Where the loose cover is of opaque linen cloth, portions may be oiled to produce transparent areas to reveal the title.
Patent GB-529662-A (GB)
Title: Improvements in or relating to electric water-heating systems
IPC: F24H1/20
Filed: 1939-06-05
Abstract: 529,662. Electric water-heaters. ZIP HEATERS, Ltd. June 5, 1939, No. 16484. Convention date, June 23, 1938. [Class 39 (iii)] The storage chamber 1, Fig. 1, of an electric water heater is connected to a smaller heating chamber 6 which is inclined to the horizontal and has a water inlet tube 9, perforated with holes or slits, extending longitudinally of and beneath a heating element 23 of the type described in Specification 514,231. The chamber 6 is lagged with heat-insulation 11 and contains a thermostatic control 24. Valves 5 and 8 control the flow of water to the chamber 6, and the valve 8 may have means preventing its complete closure. The pipe connection 4 is curved to avoid trapping of steam. In a modification, Fig. 6, the heating chamber 35 is mounted inside the storage tank 36, and circulation takes place through perforations 37 and a pipe 39. The top of the chamber 35 may be curved to facilitate flow through the outlet 39 ; in this case the chamber may be horizontal.
Patent GB-717208-A (GB)
Title: Glove or mitten for playing games
IPC: A63B71/14
Filed: 1952-07-01
Abstract: 717,208. Gloves. CLARKE, J. July 1, 1952, No. 16493/52. Class 141 A golf glove or mitten has a strip of flexible material 3 stitched to the base of the thumb 2 at 4 and to the palm at 5 to form a loop adapted to receive the thumb of the upper hand gripping a club when the glove or mitten is worn on the lower hand.
Patent GB-1357265-A (GB)
Title: Spray nozzle for a spray drier
IPC: B01D1/20
Filed: 1972-04-11
Abstract: 1357265 Spray producers KNAPSACK AG 11 April 1972 [29 April 1971] 16644/72 Heading B2F A spray nozzle for a spray drier comprises an upper part provided with a feed pipe 5 for the supply of a solution to be sprayed, and with an inner feed pipe 9 and outer feed pipes 13 for the supply of spray-inducing medium, e.g. steam or compressed air; a base plate 2 of hard elastic and rigid materials and an intermediate plate 3; a nozzle head consisting of a plurality of concentric ring-shaped members 16, 17, 18 and 19 detachably secured to the plate 3; a fastener 22 supporting the innermost ring-shaped member 19 by means of a bearing member 19; and an axial compensator 15 radially spaced from the inner pipe 9 and connected between the inner pipe 9 and the inlet end of a concentric pipe forming an annular channel 7 around the inner pipe for the supply of the solution to be sprayed. An angle α defined by the ring-shaped members of the nozzle head lies within the range 1 and 20, preferably 2 and 10, and is selected by selecting ring-shaped members of the appropriate length.
Patent GB-774595-A (GB)
Title: Improvements in or relating to uplift sliding doors
Inventor: BURROWS ARTHUR THOMAS CHARLES
IPC: E05D15/38
Filed: 1954-06-04
Abstract: 774,595. Door-operating apparatus. KING, Ltd G. W. May 16, 1955 (June 4, 1954], No. 16646/54. Class 65 (1). A garage door 10 arranged to lie substantially horizontal under the ceiling when open is guided by rollers at or near the lower corners running in a vertical track and rollers at or near the upper corners running in a horizontal track. The door is balanced by a counterweight suspended from pulleys 20 on an endless cable arranged as shown, the pulley 15 being preferably combined with the lower roller on the door; the balancing system is duplicated at the other side of the door. Instead of duplicated systems a single system with a single counterweight may be provided.
Patent GB-219022-A (GB)
Title: Improvements in or relating to aeroplanes
IPC: B64D7/02
Filed: 1924-07-12
Abstract: 219,022. Bibard, R. A. July 13, 1923, [Convention date]. Windscreens.-An aluminium cone may protect the gunner in an aircraft from wind or two panels 52, 53 filled with transparent celluloid may be hinged to the fuselage as shown. The panels are connected by links 54, 55 to a spring-controlled member 56 and a cord 59 within reach of the gunner enables the panels to be adjusted.
Patent GB-1424434-A (GB)
Title: Heat-exchange apparatus
IPC: F28D/
Filed: 1973-04-06
Abstract: 1424434 Cooling liquids in bulk INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 6 April 1973 [7 April 1972] 16753/73 Heading F4S Coolant, e.g. liquid sodium, is passed through a cooling tube depending downwardly from a plug assembly 8 into a container 1, e.g. a nuclear reactor tank, filled with a liquid to be cooled, e.g. liquid sodium. The tube comprises a downwardly extending portion 4 linked to an upwardly extending helical portion 5 via a loop portion 6. The upper ends of the tube portions 4 and 5 open into first and second chambers 10 and 9 respectively. The plug assembly, which is surrounded by a bush 13, is fitted in fluid-tight manner into an aperture in the container wall and is connected by a weld seam 12 to a ring 11. Ring shaped bodies 14 and 15 are welded into position via welds 16-19 to fill in the space between the plug assembly and the bush 13. Supply and discharge ducts 20 and 21 lead coolant to and from the chambers 10 and 9 respectively. When the cooling tube is to be removed from the container, e.g. for repair purposes, a portion of the coolant remaining in the tube may be removed therefrom via an overflow 25 which is linked through a cavity 22 in the plug assembly to a tube 24 which in turn is connected to the tube portion 5; the cavity is normally sealed by a screw closure member 23.
Patent GB-334248-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/58
Filed: 1929-05-31
Abstract: 334,248. Standard Telephones & Cables, Ltd., and Wright, E. P. G. May 31, 1929. Drawings to Specification. Automatic exchange systems.-In a system in which a group of selector switches is controlled by a common circuit, switches for setting up local connections and switches at the incoming ends of junctions, or, switches associated. with junctions from two different offices, are included in the same group. The outgoing ends of the junctions are taken into use by group selectors controlled by a common circuit, and when such a selector and control circuit are taken into use, the control circuit immediately applies a test to the junctions and causes idle junctions terminating in incoming selectors associated with idle control circuits to be marked in the banks of the outgoing selectors. The system described is identical with that, described in Specifications 317,521 and 324,982 also are referred to.
Patent GB-110816-A (GB)
Title: Improvements in or relating to Grinding Mills and the like.
Inventor: CLOUD WALTER AMELIUS
IPC: B02C13/22
Filed: 1916-11-23
Abstract: 110,816. Cloud, W. A. Nov. 23, 1916. Impact pulverizers.-Relates to mills of the kind in which a plurality of rotary disks carrying pulverizing-pins co-operate with other disks carrying similar pins. According to the invention, the rotatable disks are of increasing diameters in succeeding stages from the inlet to the outlet of the machine. In the form shown in Fig. 1, the rotatable disks a, a<1> carrying square pins b, b<1> are mounted in a stepped casing e. Cooperating pins c, c<1> are carried by a partition plate d and a cover-plate d<1> respectively. The material enters through a central orifice k and is drawn through the mill as indicated by the arrows. In the form shown in Fig. 3, the larger disk a forms the partition, the material passing through openings o near the middle. Air is drawn in with the material by the centrifugal action of the disks, so that the material is kept cool. The mills are suitable for pulverizing shellac, gums, resins, and like materials, which are detrimentally affected by heat. A fan may be used to increase further the air circulation. The distances of the disks from their co-operating disks decrease in successive stages. The distance between the pins on each disk is graduated, the pins being closer together at the periphery than at the middle. The pins may be otherwise than square, the angles being so arranged in relation to their paths as to cause the material to be deflected from one pin to another. The sides of the pins may be fluted.
Patent GB-183675-A (GB)
Title: Improvements in or relating to variable speed gear
IPC: F16H3/04
Filed: 1921-06-20
Abstract: 183,675. Miller, J. A., and Miller, W. D. June 20, 1921. Addition to 169,396. Variable-speed gearing. - The two-speed gear used as an auxiliary to a main change-speed gear described in the parent Specification is modified in construction. The tail-shaft of say a motor vehicle is divided into driving and driven parts 1, 2, Fig. 2, as before, the part 1 being movable. Upon the shaft 2 is secured a toothed pinion 3 and a gear-like clutch member 3<a> of larger diameter. A wide internal gear 5 slides on feathers on the end of the shaft 1 and is adapted to be engaged with the clutch member 3a for the direct or clutch drive. The geared drive at in creased speed is effected by sliding the gear 5 out of clutch engagement and swinging the shaft 1 sideways so as to bring the gear 5 into engagement with the pinion 3. For this purpose, the gear 5 is supported in a carrier arm 13 secured to a rod 15, Fig. 4, which has sliding and turning movements under control of a lever moving in a gate of U-shape. Proper gear positions are ensured by a snug 29 upon the arm 13 engaging guiding-means 31 upon the gear casing.
Patent GB-594926-A (GB)
Title: Improvements in or relating to the manufacture of vinyl cyanide
Filed: 1945-07-04
Abstract: Vinyl cyanide is prepared by reacting at a temperature of 350-700 DEG C., hydrogen cyanide with acetylene in the presence of a catalyst and from 0.1 to 5.0 per cent of water vapour.  A diluent gas, for example nitrogen, natural gas or hydrogen may be used. Suitable catalysts include alkali metal cyanides-sodium, potassium, lithium, caesium or rubidium cyanides supported on a solid material such as vegetable charcoal, coke, activated carbon, silica and alumina.  Compounds of the alkali metals which react with hydrogen cyanide under the reaction conditions to form cyanides may be used, for example, the alkali metals, the oxides, hydroxides or carbonates of the alkali metals or salts of the lower aliphatic carboxylic acids. Specification 581,035 and German Specification 559,734 are referred to.
Patent GB-847464-A (GB)
Title: Stability dimers and trimers of acetylene
IPC: C07C7/20
Filed: 1959-05-20
Abstract: Dimers and trimers of acetylene, e.g., monovinylacetylene, divinylacetylene and butatriene containing impurities such as divinylacetylene, 1, 3-hexadiene-5-yne, butatriene, chloroprene, vinyl chloride and acetaldehyde are stabilised in the gaseous, liquid or dissolved state against the formation of solid polymers by the presence of 1-1,000 parts per million of a sulphide of a Group I metal, Group II metal, transition metal or hydrogen.
Patent GB-152397-A (GB)
Title: Improvements in reinforcing elements for concrete
IPC: E04C5/03
Filed: 1919-07-08
Abstract: 152,397. Royse, G. C. July 8, 1919. Reinforced concrete. -Metallic bars a for reinforcing concrete are formed with concave portions or faces, ribs b, Fig. 11, and inclined webs or lugs. The webs f, e on one side of the bar are continuous and inclined in one direction, while the webs c, d, Fig. 8, are also continuous but inclined in the opposite direction, the two pairs or groups of webs being displaced longitudinally relatively to one another, as shown. The bar a may be formed with two or three ribs. In the latter case, the diagonal or inclined set of webs on one face are disposed in a direction opposite to those on the remaings faces, and are displaced longitudinally of the bar. The form of the webs is such that the cross sectional area of the bar is substantially constant throughout its length. The arrangements shown are stated to provide against any twisting tendency of the bar when embedded in concrete.
Patent GB-236579-A (GB)
Title: Process and arrangement for the utilisation of the waste gases from water-gas generators
IPC: C10J3/76
Filed: 1925-07-03
Abstract: 236,579. Marischka, C. July 5, 1924, [Convention date]. Producers.-In water-gas producers having a jacket boiler as described in Specification 25684/11, the " blow " gas is passed through an external pipe into a heating-jacket surrounding the boiler either directly or after passage through a separate combustion chamber. The producer a is connected by a pipe e with the secondary combustion chamber or superheater g which is connected by a pipe h with the heating-jacket b ; valves i are provided to enable the direction of flow of the gas to be controlled. During the " run," water gas passes directly from the producer to the jacket b when steam is superheated in the chamber g; or the water gas may pass through the chamber g to transfer surplus heat to the jacket. To increase the heating surface of the boiler c, Fig. 2, watertubes r of vertical, inclined, or spiral form may be arranged within the heating-jacket b. In a modification, the heating-jacket also as a combustion chamber for the " blow " gas, in order to dispense with a separate superheater.
Patent GB-1463202-A (GB)
Title: Self contained pressure-sensitive record material
IPC: B41M5/132
Filed: 1974-04-18
Abstract: 1463202 Self-contained pressure-sensitive record sheet CHAMPION PAPER CO Ltd 18 April 1974 [23 April 1973] 17136/74 Heading D2B  A self-contained pressure-sensitive record sheet comprises a substrate carrying (a) a first coating on the surface thereof comprising pressure-rupturable microcapsules containing a substantially colourless chromogenic material; (b) a second coating comprising a continuous, non-permeable, pressure-rupturable, water-insoluble polymeric barrier layer; and (c) a third coating comprising an adsorbent, electron-acceptor material, said chromogenic material and electron-acceptor material being capable of reacting to form a distinctive colour on contact. The barrier layer may comprise a cross-linked polyvinyl alcohol, methyl cellulose, hydroxyethyl cellulose, starch, gelatin, or guar gum. The cross-linking agent used may be an aldehyde, borax, or a partially condensed formaldehyde condensation product. The barrier layer may also be formed from the latter condensation product. The microcapsules may contain a conventional chromogenic compound such as crystal violet lactone and benzoyl leuco methylene blue, and the electron-acceptor material may be an acid clay, bentonite, kaolin, aluminium silicate, calcium citrate, or metal oxide or chloride. The substrate may be made of paper, plastics materials, fabric or textile web material, which may be precoated or impregnated with a material such as polyvinyl alcohol, or styrenebutadiene latex to reduce seepage of microcapsules through the web.