baber/WOPTO huggingface dataset:
Patent GB-629058-A (GB)
Title: Refractory setter
IPC: F27D5/00
Filed: 1947-10-24
Abstract: 629,058. Firing pottery. LENOX, Inc. Oct. 24, 1947, No. 28446. Convention date, Oct. 15, 1940. [Class 87(i)] A refractory setter for supporting porcelain flat ware during firing comprises a flat central portion 10 and a surrounding depressed conical flange 11, so arranged that before firing the ware 13 contacts the setter only at its edge, but after firing contacts also the central portion 10. The setter is provided with feet 14 and corresponding recesses 15 in its upper surface to receive the feet of a superposed setter.
Patent GB-417355-A (GB)
Title: Improvements in and relating to apparatus for the manufacture and production of cartridge cases and the like
IPC: B21K1/00
Filed: 1933-10-14
Abstract: 417,355. Making cartridge cases &c. MANUFACTURE DE MACHINES DU HAUT-RHIN SOC. ANON., Bourtzwiller, Mulhouse, Haut-Rhin, France. Oct. 14, 1933, No. 28465. Convention date, Sept, 16. [Classes 83 (ii) and 83 (iv).] Shearing ; forging.-Cartridge cases &c. are made as in Specification 413,908 from a round bar 15, a blank being sheared off the projecting end by a reciprocated die 14 and conveyed by its further movement to a shaping die 19 and pushed therein by a finger 16 depressed by a cam operated pin 20 after withdrawal of which finger 16 the die 18 descends to forge the blank to the shape shown in Fig. 1. The shear knife (and its slide 21) reciprocates horizontally when the pin 26 of the vertically reciprocating slide 9 traverses the cam groove 25 of the slide 21 and by means of toggles 22, 23 which are arranged to give maximum thrust during shearing as follows :-When. the slide 9 moves down, the toggles 22 and 23 turn in their bearings and move the members 50 and 51 to the left against the spring 54, Fig. 5. The member 51 bears against a shoulder on the slide 21 to move it to the left to perform the shearing, the pin 26 moving idly in the cam groove 25 at this time. The cam groove 25 and pin 26 moves the slide further to the left to carry the blank to the die 18. An ejector 12 is timed to eject the blank until it is conveyed by automatic conveyer (not described) to the Geneva step-by-step plate of another machine described in Specification 417,371.
Patent GB-727139-A (GB)
Title: Improvements in or relating to tubulous vapour generating and superheating units
IPC: F22B21/34
Filed: 1951-12-06
Abstract: 727,139. Water-tube steam boilers. BABCOCK & WILCOX, Ltd. Dec. 6, 1951 [Dec. 6, 1950], No. 28637/51. Drawings to Specification. Class 123 (2). The subject-matter of this Specification is substantially the same as that described in Specification 714,517 but the claims differ. Specification 552,747, [Group XII], also is referred to.
Patent GB-855029-A (GB)
Title: Improvements in or relating to ovens heated by hot air
IPC: A21B1/44
Filed: 1958-09-05
Abstract: 855,029. Bakers' ovens; roasting furnaces. DENHOLM, A. Sept. 7, 1959 [Sept. 5, 1958], No. 28641/58. Class 51 (2). [Also in Group XIII] Fans 13, 14 circulate the atmosphere of an oven through passages 20, wider at the inlet end than at the outlet end, over heating elements 23. The charge of the oven is supported in a carrier 24 rotatably mounted on trunnions 25, 26. The carrier may be mounted on wheels so that it can be moved into or out of a rotatable cage. In a modification, Fig. 5, four racks are mounted on a rotatable platform 37. The oven may be used for roasting, curing or drying or as a baker's oven.
Patent GB-653548-A (GB)
Title: Improvements in and relating to feedback arrangements in symmetrical cathode follower circuits
IPC: H03F3/28
Filed: 1948-11-04
Abstract: 653,548. Valve amplifying circuits. TESLA, NATIONAL CORPORATION, and VACKAR, J. Nov. 4, 1948, No. 28734. Convention date, Nov. 18, 1947. [Class 40 (vi)] Negative feed-back, in a push-pull amplifier which may operate in Class B, is taken from resistive potentiometers 3, 4, each connected between the cathode of one valve and the grid of the other valve of a cathode follower stage. The feed-back is taken from points on the potentiometers so chosen that only distortion and noise is fed back through blocking condensers 11, 12 and resistors 5, 6 to the grids of the preceding stage. Blocking condensers 9, 10 are provided in series with potentiometers 3, 4.
Patent GB-1432467-A (GB)
Title: Disteroidyl ethers
IPC: C07J7/00
Filed: 1973-06-18
Abstract: 1432467 Bis-steroid ethers WARNERLAMBERT CO 18 June 1973 28748/73 Heading C2U The invention comprises certain bis-steroids of formula wherein St is a saturated or unsaturated steroid 3-yl radical and St<SP>1</SP> is a #<SP>2</SP>, #<SP>3</SP>, #<SP>3,5</SP> or #<SP>1,3,5(6)</SP>- unsaturated steroid 3-yl radical. In particular, St is (1) an androstane, estrane or 13-ethylgonane with optional double bonds at 1,4,5 or 5(10); H, halo, Me or oxo at 6; and oxo at 17, or free/esterified/etherified OH at 17# with H, alkyl, alkenyl or alkynyl at 17α; (2) cholest-5-ene or 12α-(hydroxy or acetoxy)-5#- cholanic acid or an alkali metal salt or alkyl ester thereof; (3) an estra-1,3,5(10)-triene with H, OH, acyloxy or halo at 16; and oxo at 17, or free/esterifled OH at 17# with H or ethynyl at 17α; or (4) a pregnane, 19-norpregnane or 18- homopregnane with an optional double bond at 5(6); H, halo or Me at 6; H, OH or acyloxy at 17α, oxo or free/esterified OH at 20; and H or free/esterified OH at 21; and St<SP>1</SP> is (1<SP>1</SP>) an unsaturated androstane, estrane or 13-ethylgonane with H, halo or Me at 6; H or halo at 9α; H, OH, oxo or Cl at 11; and oxo at 17 or free/ esterified/etherified OH at 17# with H, alkyl, alkenyl or alkynyl at 17α; or (2<SP>1</SP>) an unsaturated pregnane, 19-norpregnane or 18-homopregnane having H, halo, Me or oxo at 6; H or halo at 9α; H, OH, oxo or Cl at 11; H, halo, Me, OH, acyloxy or CH 2  at 16; H, OH or acyloxy at 17α; oxo at 20; and H, halo, OH or acyloxy at 21. Compounds I are prepared by reaction of St-OH with an acetal, hemiacetal, enol ether or enol ester of St<SP>11</SP> = O where St<SP>11</SP> is the same as St<SP>1</SP> except that it is saturated or #<SP>4</SP> or #<SP>1,4</SP>- unsaturated and optionally contains 1α-alkoxy (concurrent elimination of which yields #<SP>1</SP>). The reaction is effected at 50-200‹ C. in an anhydrous organic solvent with an acid catalyst, and is optionally followed by saponification of acyloxy, esterification of hydroxy and/or reduction of oxo substituents. The starting derivatives of St<SP>11</SP>=O are prepared as described in Specification 1,425,415. Pharmaceutical compositions for oral, parenteral and topical administration comprise a compound I and a carrier. Compounds I are said variously to possess androgenic, anabolic, myogenic, progestational, antifertility, contraceptive, central nervous system depressant, sedative, hypnotic, anaesthetic, mineralocorticoid, glycocorticoid, anti-inflammatory, antiandrogenic and estrogenic activities.
Patent GB-533276-A (GB)
Title: Improvements in and relating to rotary pumps or compressors
IPC: F04C19/00
Filed: 1939-10-26
Abstract: 533,276. Rotary pumps &c. JENNINGS, 1. C. Oct. 26, 1939, No. 28764. [Class 110 (i)] In a liquid ring pump or . compressor such as is described in Specifications 324,249 and 324,286, [both in Class 110 (i)], a substantial clearance 26 is provided between the rotor blades 17 and the lands 13 14 of the casing to reduce hydraulic shock. Flanges on the rotor may have a running fit with the casing.
Patent GB-486391-A (GB)
Title: Improvements in electric resistance heating apparatus
IPC: H05B3/68
Filed: 1937-10-21
Abstract: 486,391. Electric hot-plates. CHALLET, E., and ENTREPRISES ELECTRIQUES FRIBOURGEOISES. Oct. 21, 1937, No. 28779. Convention date, Jan. 13. [Class 39 (iii)] In an electric heating- plate wherein a heating resistance 1 and its insulation 2 are pressed against the plate 4 by a mica cushion 5 carried by a trough 6, the cushion is deformed by arranging that the downward pressure of the heating element is incident at an area between the areas pressed on by the trough. The curved cushion therefore exerts a spring pressure on the heating element. The trough may be driven sufficiently hard against the cushion to bring the whole of their adjacent surfaces into contact.
Patent GB-489360-A (GB)
Title: An improved apparatus for use in activating and re-activating charcoal, carbon and like substances, and for use in revivifying kieselguhr and the like
IPC: C01B31/08
Filed: 1936-10-23
Abstract: <PICT:0489360/III/1> In apparatus for activating and re-activating carbon, kieselguhr, and like substances comprising a vertical casing 6 surrounded by a furnace flue 2, a series of superimposed trays 19 within the casing, scrapers 22 co-operating with the trays and rotated by a central shaft 17, each tray having an opening near the periphery and the openings in successive trays being staggered, means to introduce the material to be treated at the top of the casing and to withdraw it at the bottom and also means to inject air, steam or other gases into the casing, the central shaft 17 is hollow and is provided with openings 18 for the removal of the gases introduced into the casing.  The trays are carried on vertical rods 11, which are located in recesses in the casing, and a door 16 may be provided at the bottom of the flue to facilitate removal of the trays. Material is fed in from a hopper 26 and controlled by valve 27.  This valve is operated by lever 29 and the corresponding exit valve 30 is controlled by lever 31a operating through rod 31.  The treated material is passed into a jacketed cooler (not shown) and thence to storage.  The furnace flue is provided with an extension 32 in which is located a container 33 having stirrers 34 for preliminary drying of the material. Alternatively a screw conveyer leading to the hopper 26 may be located in the extension 32.  At points 36, 36a and 36b, air, flue gases, steam, or mixtures thereof are admitted to the casing, and controlled for example by valves 37.
Patent GB-391147-A (GB)
Title: Improved method and apparatus for degreasing materials
IPC: C23G5/04
Filed: 1931-10-17
Abstract: In the degreasing of light metal and other articles by immersion cold in solvent vapour, the articles are repeatedly moved from the vapour zone, cooled, and reimmersed; the articles may also be washed by showers of liquid solvent from overhead cooling coils.  For example, articles in baskets are carried by <PICT:0391147/III/1> a conveyer 13 through a tank 1 via a zone 15 of trichlorethylene vapour, a zone 2 cooled by coils 9<1>, a vapour zone 16, cold zone 3, and a vapour zone 17, cooling coils 9 limiting the height of the vapour in the tank and causing showers of liquid solvent on to the articles.  The solvent is vaporized from longitudinal sumps 5 in the bottom of the tank.
Patent GB-519245-A (GB)
Title: Improvements in or relating to rotary filters
IPC: B01D33/00
Filed: 1938-10-07
Abstract: 519,245. Filters. INTERNATIONAL COMBUSTION, Ltd., and HARLOW, W. F. Oct. 7, 1938, No. 29108. [Class 46] In a rotary filter of the type having peripherally arranged compartments, the base of each compartment is formed with a network of intersecting channels defined by projections which support the filter medium and communicate with a duct whereby a partial vacuum or air under pressure can be applied to the compartment. As shown, the base of each compartment is formed by a plate 1 fixed to the drum 3 by screws 2 and having projections 10 and apertures 4 through which the filtrate passes into drainage channels 5 communicating by ducts 6 with the valve head on the filter. The projections 10 may be in the form of truncated pyramids. The compartments are separated by partitions 7 which have grooves filled with caulking 11.
Patent GB-1247108-A (GB)
Title: A respiratory apparatus
IPC: A61M16/06
Filed: 1969-06-09
Abstract: 1,247,108. Respiratory apparatus. O. H. DRAGER [trading as DRAGERWERK, HEINR & BERNH, DRAGER], 9 June, 1969 [7 June, 1968], No. 29121/69. Heading AST. A respiratory apparatus comprises a bayonet joint 7, 2 for firmly holding together a mouthpiece or mask 12 and a filter container 1 for containing an air filter and further comprises elastic sleeve 8 connecting the mouthpiece or mask and the filter container, the bayonet joint when connected being enclosed by the apparatus. As described the mouthpiece or mask 12 has an air inlet at 4 to which is attached at its ends 6 a bent sheet metal strip 5 which provides dogs 7 which can be passed through rectangular recesses 3 (Fig. 3, not shown) in the rim 2 of the filter container 1 and after rotation of the filter container through 90‹ holds together the mouthpiece or mask and the filter container. A sleeve 8 made in one piece with the mouthpiece 12 engages with its lower end 9 externally over the neck 10 of the filter container 1 and a clip 11 may be used to improve the seal between the sleeve 8 and neck 10.
Patent GB-207007-A (GB)
Title: Improved ladder raising device
IPC: B66F19/00
Filed: 1922-10-26
Abstract: 207,007. Humby, J. W. Oct. 26, 1922. Raising ladders.-A device. for use in raising a ladder from the horizontal to the vertical position comprises a frame A with cross bars D which form a pocket for the reception of the heel of the ladder while, it is flat. The ladder is supported on the frame by ropes G, H passing over the end cross bars. A centre bar E forms the lever for raising the ladder by tilting the frame about its end. For long ladders, an extra supporting rope may be attached to its further end and to the end of the raising lever.
Patent GB-917412-A (GB)
Title: Manufacture of fluorinated aromatic compounds
Inventor: BANKS RONALD ERIC
IPC: C07C17/23
Filed: 1958-09-11
Abstract: Hexa-, penta-, or tetra-fluorobenzenes, and perfluoroalkyl-fluorobenzenes, are produced by heating fluorocyclohexadienes, or perfluoroalkylfluorocyclohexadienes, at a temperature of at least 300 DEG C. in contact with a metal, such as nickel, steel or copper, which brings about defluorination.  In Example 1, octafluorocyclohexa-1,4-diene was passed through a mild steel tube heated to 500 DEG C.  The product contained 72% by weight of hexafluorobenzene, the remainder being decafluorocyclohexene, octafluorocyclohexa-1,3-diene and unchanged starting-material.  In Example 6, 1H-heptafluorocyclohexa - 1,3 - diene was passed through a nickel tube packed with stainless steel gauzes at 600 DEG C.  The product contained 80% by weight of pentafluorobenzene.  Example 7 describes the production of a mixture of pentafluorobenzene and 1,2,3,5-tetrafluorobenzene by passing 1H,5H-hexafluorocyclohexa-1,4-diene through a nickel tube packed with nickel gauze at 450 DEG C.  When the starting fluorocyclohexadiene contains hydrogen, it should be brought rapidly to the reaction-temperature in order to reduce the extent of dehydrofluorination reactions.  With continued use the metal becomes coated with a layer of metallic fluoride, but it may be reactivated by treatment with hydrogen.  It is briefly mentioned that octafluorotoluene may be obtained from trifluoromethylheptafluorocyclohexadienes.
Patent GB-835671-A (GB)
Title: Improvements in or relating to sedative and anticonvulsant compositions comprising nitroalcohols
IPC: A61K31/06
Filed: 1958-09-11
Abstract: Pharmaceutical compositions comprise a solid pharmaceutical carrier and, as active ingredient a primary nitro alcohol of structural formula <FORM:0835671/VI/1> wherein R is hydrogen, methyl, ethyl, n or isopropyl; R1 is hydroxymethyl, 1-hydroxyethyl or 1-hydroxypropyl; and R2 is methyl, ethyl or hydroxymethyl.  Specified compounds are 2 - nitro - 2 - n - propyl - 1,3 - propane diol; 2-nitro - 2 - isopropyl - 1,3 - propane diol; 2-nitro - 2 - methyl - 1 - propanol; 2 - nitro - 2-methyl - 1 - butanol; 3 - nitro - 2 - butanol and 4-nitro-3-hexanol.  The compositions may be in unit dosage form, e.g. tablets or capsules which may contain from 0.25 to 1.0 gm. of the active substance.
Patent GB-1473293-A (GB)
Title: Timing device
IPC: G04C15/00
Filed: 1973-06-20
Abstract: 1473293 Electric clocks UNITED GAS INDUSTRIES Ltd 3 June 1974 [20 June 1973] 29332/73 Heading G3T In a movement for a clock or time switch and normally driven by a synchronous electric motor 11 but having a reserve spring wound by the motor and coupled to an escapement 35, the escapement being normally locked but released at intervals, so as to be exercised, without interrupting the drive from the electric motor, a solenoid 24 which is energized as long as electric power is available actuates both the locking means and a clutch 19 between the electric motor and the output gear 30 of the movement, but allows the locking means and the clutch to become inoperative when the power supply fails. The motor 11 is then disconnected from the output and the escapement is freed to control the spring drive. As described the motor 11  drives a barrel 16 to wind the reserve spring, overwinding being prevented by slipping of the outer spring end, and the barrel in turn drives the output 30 via an intermediate wheel, dog clutch 19, and gearing on shafts 26, 27. The barrel arbor 18 is allowed to rotate at a speed below the winding rate by means of a wheel 40 which is freely rotatable on the arbor and coupled thereto by a pawl 34 and a ratchet wheel 33 fast on the arbor. The pawl rides on the ratchet wheel if the arbor is turned by means of a knob 32 to wind the spring manually. The escapement 35 is normally locked by a leaf-spring 45 but is periodically unlocked by a push-rod 46 and an arm 47 actuated by a pin 48 on a gear 49. As long as the escapement is locked, wheel 38 is stationary with consequent slipping of a friction clutch 50 between the wheel and shaft 26. If the motor 11 and solenoid 24 become deenergized, the barrel 16 becomes locked by the motor and its gearing 15, and shaft 23 of the solenoid rises to the position shown, opening the clutch 19 and displacing push-rod 46 to free the escapement. The reserve spring then drives the output via barrel arbor 18, ratchet wheel and pawl 33, 34, wheel 40 and shaft 27, while the escapement is driven through the shaft 26, friction clutch 50 and wheel 38.
Patent GB-1168736-A (GB)
Title: Improvements relating to Photographic or Kinematographic Lens Mounts.
IPC: G03B3/00
Filed: 1967-06-26
Abstract: 1,168,736. Lens mounts, diaphragms. JOS. SCHNEIDER & CO. OPTISCHE WERKE. June 26, 1967 [July 16, 1966], No.29343/67. Headings G2A and G2J. A lens mount 1 contains an optical system 2 in an adjustable housing 4 and having an adjustable diaphragm 3, adjustment being effected manually or by means of motors 14 (14<SP>1</SP>, Fig. 3, not shown). A shaft 5 mounted in the mount 1 carries a thread 6 which threads a nut 7 fixed on the housing 4. Rotation of the shaft by a knurled wheel 9 or from the motor via gearing 8, 13 causes the nut and hence the housing and optical system 2 to be moved axially for sharp focusing and/or varying the focal length, rod 12 guiding the housing 4 free from tilt. To adjust the diaphragm 3 a shaft (5<SP>1</SP>) circumferentially spaced from, and parallel to, shaft 5, is rotated and a toothed wheel (6<SP>1</SP>) thereof drives a ring of teeth (7<SP>1</SP>) to open or close the diaphragm. Alternatively, only one shaft may be provided, and the rod may be rotatable for transmitting the diaphragm movement.
Patent GB-1113535-A (GB)
Title: Apparatus for carrying out drawing operations
Inventor: SANSOME DENNIS HUGH
IPC: B21C1/00
Filed: 1965-07-12
Abstract: 1,113,535. Drawing. S. T. D. SERVICES Ltd. 6 Oct., 1966 [12 July, 1965], No. 29418/65. Heading B3P. Apparatus for drawing elongated workpieces 12 comprises a die 10 and means for reciprocating the die at 25-500 c.p.s. parallel to the intended direction of movement of a workpiece through the die. The work is drawn through the die by a block 12 and the die is reciprocated by a double-acting fluid cylinder 13 of which the valve gear is actuated electrically, electronically or mechanically.
Patent GB-185346-A (GB)
Title: Improvements in motors for jig-conveyors
IPC: B65G27/14
Filed: 1921-11-04
Abstract: 185,346. Eickhoff, A. Nov. 4, 1921. Tappet gears; slide-valves, flat.- The slide valve 24 of a jig-conveyer motor is arranged at the end of the cylinder, and is operated by tappets 12, 13, 18 arranged on the rods 7 connected by a cross-head to the piston-rod 1. The tappets 12, 13 are adjustable. The tappets 18, 12, 13 move the valve 24 to the positions shown in Figs. 6, 5, and 4 respectively. Full-pressure fluid is first supplied to the left of the piston and the right put to exhaust; the left of the piston is then cut off from the supply and put to throttled exhaust, during which time expansion occurs and the exhaust on the right of the piston is closed; finally, the left of the piston is put to full exhaust and the right to throttled fluid supply before the piston completes its stroke to the right. Admission takes place on the left of the piston before the stroke to the left is complete. A three-way cock 34 in the forward passage 22 enables the motor to be converted into a single-acting one.
Patent GB-1517744-A (GB)
Title: Thin flat cell construction having a gas-permeable coated perforated anode
IPC: H01M6/12
Filed: 1975-07-14
Abstract: 1517744 Electrochemical cell UNION CARBIDE CORP 14 July 1975 [18 July 1974] 29432/75 Heading H1B An electrochemical cell comprises an anode 3 having openings 23 for venting undesirable gases formed within the cell and having a gas-permeable, electrolyte impermeable layer 25 on its outer surface. The cathode collector 11 of the cell may also contain openings 21.
Patent GB-947068-A (GB)
Title: Insoluble fluoride recovery
Inventor: CHAPMAN JOHN DICKINSON
IPC: C05B1/02
Filed: 1960-08-26
Abstract: Hydrofluoro silicic acid, obtained for example by water scrubbing waste gases from acid opening up of phosphate rock, is converted according to the equation  3Ca(OH)2 + H2SiF6-->3CaF2 + SiO2 + 4H2O by adding it to an excess of stirred pulverized quicklime or slaked lime at above 80 DEG  C., at such a rate that the heat of reaction together with the externally supplied heat cause the total water to evaporate while the pH of an aqueous extract is maintained above 7, thus affording a solid mixture of CaF2 and SiO2. This product yields little or no water-soluble fluoride ion and may thus be safely disposed of.  15-30% by wt. of hydrofluorosilicic acid is preferred. The preferred operating temperature is above 90 degrees, to which the initial charge of slaked lime or quicklime (preferably -100 B.S. mesh) is heated.  The example also includes, by way of comparison with the process of the present invention, the result of the interaction of a slurry of quicklime with the hydrofluorosilicic acid, which results in a product containing soluble fluoride.
Patent GB-1374121-A (GB)
Title: Metering device
IPC: G01F11/46
Filed: 1972-06-01
Abstract: 1374121 Delivering measured quantities of fluent material BINKS-BULLOWS Ltd 1 June 1972 [24 June 1971] 29554/71 Heading B8N A device for delivering measured quantities of material comprises measuring chambers 20 controlled by a pair of angularly movable closure members 11, 12 each being in the form of a plate shaped as a major segment of a circle with the chord being parallel to, and spaced 180 degrees from the chord of the opposite closure member, such that material fed into a chamber when uncovered at one end passes out into a funnel 21 when the chamber is uncovered at the other end. As shown, a series of chambers 20 are equi-spaced around a fixed plate 10 and the pair of closure members 11, 12 are carried on a hub 16 for rotation by a motor-driven shaft 13, the members being spring-loaded into sliding engagement with the plate. No one chamber 20 is open at both ends at the same time. When powder or granular material is being delivered, preferably a notch 23 is provided in the hub 16 to remove particles from the bearing and discharge them through a countersunk portion 24 of the plate 10 to the funnel 21. The material to be delivered is fed by gravity to the upper face of the plate 10 but the device may also operate with a pressure difference between the opposed faces of the plate.