baber/WOPTO huggingface dataset:
Patent GB-385101-A (GB)
Title: Improvements in or relating to helicopter aircraft
IPC: B64C27/04
Filed: 1931-12-08
Abstract: 385,101. Helicopters. NAGLER, B., 59, Rennweg, and HAFNER, R., 47, Mantlergasse, both in Vienna. Dec. 8, 1931, No. 33992. Convention date, Dec. 16, 1930. [Classes 4 and 114.] In a helicopter aircraft of the type having a lifting screw braced for strength and with means for varying the angle of incidence of the blades, the base for the supporting of the screw boss and for the bracing of the blade arms is formed by the inner ring of a ball race of large diameter of which the outer ring is secured to the aircraft frame and the inner ring driven by the engine. The lifting screw comprises blades 9a having blade arms 9 freely socketed in a boss 8 which is supported by pedestal struts 10 fixed to the inner ring 3 of a ball bearing 2 fixed in the body 1. The blades are braced by wires 13 attached to ring 3 and wires 14 attached to the upper end of a strut 11 of variable length mounted in the geometrical axis of rotation of boss 8 and ball race ring 3. Ring 3 is formed with peripheral gear teeth 4 and is driven from an engine 5, Fig. 1, through a free-wheel coupling 7. The wires 13, 14 are attached at their outer ends to sleeves 15 which may be rotatable on, or rigid with, arms 9. The latter carry cranks 16 linked by rods 17 to the outer ring 18 of a universally mounted ball bearing concentric with bearing 2. Pins 21 on ring 18 engage guides 20 on ring 3 so that the two rings rotate together. The inner ring 19 is trunnioned on a universal joint frame 25 articulated to supports 22. Supports 22 may be moved up or down by a lever 24 moving the ball race 18, 19 bodily up or down to cause an equal change of pitch of all the blades. The race 18, 19 can also be tilted in any direction to cause cyclical variation of blade pitch by means of a control lever 26 mounted on the supports 22 and having its free end engaging a socket 28 in a stirrup 27 the upper ends of which are connected to ring 19. Two parallel control surfaces 29 are arranged in the slipstream from the screw and may be inclined from the vertical to oppose the screw back torque. In a modification a horizontal rotor occupies the position of the tail planes and is driven by the engine to produce a magnus effect and thus develop a counter-torque. According to another modification the airscrew boss supports 10 may be replaced by a sheet-metal cone fixed to the ring 3.
Patent GB-1400558-A (GB)
Title: Process for the dyeing of keratin-containing materials
IPC: D06P1/92
Filed: 1972-07-20
Abstract: 1400558 Dyeing sheepskins and furs CIBAGEIGY AG 20 July 1972 [21 July 1971] 34046/72 Heading D1B Woolly sheepskins and furs are dyed at 40‹ to 70‹C in a two phase system comprising dyestuff, a halogenated hydrocarbon as hydrophobic solvent, and ethanol, ethylene glycol, isopropanol, diacetone alcohol, dimethylsulphonide, tetrahydrofuran, ethyl acetate, acetone or a lower (as defined) carboxylic acid amide as hydrophilic solvent, and water optionally up to 3g/l of organic acid optionally further additives, the dyed material being separated and finished. Preferred hydrophobic solvents are chlorobenzene, perchloroethylene, tetrachlorodifluoroethane, and carbon tetrachloride. The material may be pretreated with the solvent mixture and water before dye is added. Acid, reactive and disperse dyes may be used, the organic acids used may be formic and acetic.
Patent GB-654265-A (GB)
Title: Improvements in fuel supply systems
Inventor: CAREY FREDERICK HENRY
IPC: F02C7/22
Filed: 1947-01-20
Abstract: 654,265. Reciprocating pumps. DOWTY EQUIPMENT. Ltd. Jan. 20,1947, No. 34259. Divided out of 654,244, [Group XI]. [Class 102(i)] [Also in Groups XI and XXVI] In a liquid fuel supply system for gas turbines having burners of the spill type, and comprising a pump for circulating fuel at a fixed rate in a circuit including the burners, and a variable delivery supply pump for injecting fuel into the circulating flow, the circulating pump though operating normally as a fixed delivery unit is capable of emergency operation as a variable delivery unit, and means are provided which are responsive to failure of either pump whereby failure of either pump results in emergency operation of the operative pump to deliver fuel from the tank to the burners. During normal operation the pressure face 17 of the plunger 15 of the circulating pump 1 is exposed only to the pressure of fuel within the tank 8 through the passage 26 of the emergency control valve 22, and a spring 16 maintains the ring 13 in the position of maximum eccentricity so that the circulating pump functions at a fixed rate. The output of the supply pump 7 is varied according to the setting of the metering valve 10, the face 17 of the plunger 18 being exposed to the pressure of the delivery conduit 9. The control valve 20 is exposed at opposite ends to the centrifugal pressures generated in the casings 18 of the pumps 1, 7, so that on failure of the pump 7 the piston 20 moves upwardly and fuel is delivered by the pump 1 through conduits' 31, 32, 33 to the piston 15 so that the pump functions as a variable delivery unit. The movable element of the emergency control valve 22 is also moved to permit fuel from the pump 1 to flow through the metering valve 10 and the conduit 6 to close a non-return valve 24 and along a branch line 34 to raise the movable member of valve 29 and to feed the burners through the conduits 2. Alternatively in the event of failure of the circulating pump 1 the pressure applied to the top of the movable member 29 would fall and the member 29 would rise under the fuel pressure of the supply pump which would then feed the burners through the valve 21 and the non-return valves 23, 24 would close. A modified system is described in which both pumps have a fixed output rate and the delivery from the supply pump is varied by means of a byepass circuit comprising a relief valve.
Patent GB-1128116-A (GB)
Title: Method of and device for forming trays from a blank
Inventor: HICKMAN GEORGE HENRY
IPC: B31B50/50
Filed: 1967-07-26
Abstract: 1,128,116. Trays. KLIKLOK CORP. 26 July, 1967, No. 34282/67. Heading B8P. [Also in Division B5] A round cornered tray has strap portions 21-24 integral with side walls 12, 13 inserted in slots 29 in adjacent wall panels 16, 17.
Patent GB-998698-A (GB)
Title: Improvements in or relating to web splicing machines
IPC: B65B41/12
Filed: 1961-09-25
Abstract: 998,698. Clutch control. R. A. BUTLER. Sept. 28, 1961 [Sept. 28, 1960; Jan. 16, 1961], No. 34319/61. Headings F2C and F2L. [Also in Division B6] A clutch is used to impart a single revolution to cams 42 and 44 of web-splicing apparatus (see Division B6). As shown, the clutch comprises a constant speed gear-wheel 46, Fig. 1, freely mounted on a cam-shaft 14, and a disc 50 fixedly mounted to the cam-shaft 14. A pin 54 is constantly urged toward the gear 46 by a spring 56 screwed to the disc 50 in a hole 60. A wedge 72 on the end of an armature 74 of a solenoid 76 normally engages the underside of a head 78 of the pin 54 to hold the pin out of engagement with a slot 48 in the gear 46. The solenoid is energized by the closure of either the switch 28 or 30 actuated by a feeler lever 24 or 26 (see Division B6) completing the circuit through the solenoid, Fig. 7. The wedge 72 moves back, allowing the pin 54 to engage the slot 48. After one revolution of the clutch, and therefore of the cams 42 and 44, an additional cam 112 on the cam 44 operates a mechanism 114 which opens the switch 106 in the solenoid circuit. The wedge 72 therefore returns to its original position, disengaging the pin 54 from the slot 48.
Patent GB-816636-A (GB)
Title: Improvements in or relating to electric contact arrangements
Inventor: BARKER ROY
IPC: H01H1/20
Filed: 1956-11-09
Abstract: 816,636. Switches, partly electromagnetic. GENERAL ELECTRIC CO. Ltd. Nov. 11, 1957 [Nov. 9, 1956], No. 34374/56. Class 38 (5). The current paths to co-operating switch contacts are provided by substantially parallel, loop-like parts so that when engaged the contacts are urged together by the current flow through the parts. Fig. 1 shows one of a pair of fixed contact-members and Fig. 2 a bridging contact-member, the members having cooperating contacts at 4 and 7 respectively. The contact-members are made from copper strip which is cut away to form the loop-like parts 5, 8. Fig. 3 (not shown) illustrates a normallyclosed retractive switch embodying contactmembers of the above type.
Patent GB-1156852-A (GB)
Title: A Method of and Apparatus for Press Forming Articles from Glass and like Thermoplastic Materials.
IPC: C03B11/16
Filed: 1966-08-01
Abstract: 1,156,852. Moulding glass. CORNING GLASS WORKS. 1 Aug., 1966 [10 Aug., 1965], No. 34395/66. Heading C1M. To mould glass articles, molten glass is deposited centrally of a forming mould which is situated immediately beneath the charging orifice for the glass, the mould then being indexed downwardly to allow a plunger to be positioned above the mould, the mould and plunger then being relatively moved vertically towards each other to mould the glass. A base 10 has upper guide rails 11 on which slides a carriage 12 supporting both the mould 29 and plunger 36, the carriage 12 being moved across the base 10 by a pneumatic cylinder 14 with piston-rod 17 secured to cylinder assembly 18 forming part of the carriage 12. The assembly 18 includes a concentric series of cylinders and piston-rods (19), 21; (26), 27 separated by a sleeve 23, the mould 29 being supported on a carrier 28 on the rod 27. The plunger 36 is supported by a crosshead 35 mounted to slide horizontally in grooves 34 in carriage 12 by means of a pneumatic cylinder 37 and piston-rod 41. From the position in Fig. 1, cylinder 14 is actuated to move carriage 12 so that the mould 29 is positioned under a molten glass feeder 42 which feeds a glass charge (43) centrally thereof. Cylinder (26) is then timeactuated to lower piston-rod 27 and mould 29 to lowermost position, when a switch is operated by the mould carrier 28 to actuate cylinder 37 to move plunger 36 to position shown in Fig. 4, vertically over mould 29. A switch operated by the crosshead 35 releases the pressure from cylinder 37 to allow alignment of plunger and mould by keys or guides and further initiates the pressing operation by actuating cylinder 19 to move rod 21 upwardly and press the mould 29 into engagement with the plunger 36, a press timer and a dwell timer being incorporated in the circuitry. As the mould 29 is pressed into contact with the plunger, a switch MOS is operated to activate cylinder 14 so that carriage 12 is retracted from below feeder 42 during the pressing. After pressing, cylinders (26), 37 and (19) are actuated in that order to return the parts to the position shown in Fig. 1, when the finished article is removed. Both mould and plunger are provided with fins and air-cooled. The machine may be indexed to one side after the glass has been pressed so that a second machine may be positioned under the feeder; the base 10 may be cruciform to allow positioning of more than one mould under the feeder, or may form part of a rotating table for indexing successive moulds under the feeder.
Patent GB-411445-A (GB)
Title: Improvements in or relating to detachable wheels
IPC: B60B3/18
Filed: 1932-12-05
Abstract: 411,445. Making wheels. PUGH, J. V., HACK, G. L., LINNETT, A. J., and RUDGEWHITWORTH, Ltd., Crow Lane, Coventry. Dec. 5, 1932, No. 34474. [Classes 83 (ii) and 83 (iv).] In detachable wheels having serrations on the detachable and permanent hubs which interengage directly or through an intermediate member such as a brake-drum, the serrations are formed on one or more of the parts by indenting the metal on one surface whilst the other surface is held, against distortion, in a die. Fig. 2 shows one form in which the detachable and permanent hubs a, b have interengaging serrations f, g formed on stepped coned surfaces i, d-h, c. Fig. 3 shows a modification in which the coned regions d, c of the hubs are serrated to mesh with the boss l of a brakedrum k as described in Specification 265,280, [Class 103 (i)]. Preferably, as shown in Figs. 4 and 5 the crests of the serrations are rounded to ensure driving-engagement of the parts. Forging-punches.-The serrations may be formed by a frusto-conical tool having axial tapering projections with sharp or angled crests.
Patent GB-1094709-A (GB)
Title: Improvements in or relating to means for cooling gear units
Inventor: WATERWORTH NORMAN
IPC: F16H57/04
Filed: 1965-08-12
Abstract: 1,094,709. Cooling gearing. DAVID BROWN GEAR INDUSTRIES Ltd. Nov. 14, 1966 [Aug. 12, 1965], No. 34505/65. Heading F2Q. Means for cooling a gear unit comprise a cowl 14 secured to a gear casing 11, a fan 15 rotatably mounted within the cowl, and an electric motor having its rotor 16 connected solely to the fan 15. In a modification, the electric motor is of the inverted type, the stator being rigidly secured to the unit and the fan being rigidly secured to the motor casing. Preferably the fan is of the centrifugal type and the cowl is secured to that part of the unit which constitutes the sump.
Patent GB-484461-A (GB)
Title: Instrument for tying a knot in a ligature or like thread during surgical operations
IPC: A61B17/06
Filed: 1937-12-14
Abstract: 484,461. Suturing-appliances. NORDHOLT, A. E. Dec. 14, 1937, No. 34524. [Class 81 (ii)] An instrument for tying a knot in a suture thread, consists of a handle or casing 1 for the suture material 3 and a curved and tapering guide 8 of tubular form so that a loop formed around it by the suture or by a flexible cord 10 having a running loop formed at one end, slips off easilv to form a knot. The suture thread may be held by a clamping device consisting of two wedge shaped bodies 5 and 6 or by plates pressed together by a spring. In operation the suture thread is drawn through the flesh and then either it or the flexible cord attached to it is looped round the guide. The clamping device is operated and the loop slips off the guide forming a knot. In a modification, Figure 4, the needle is formed at the end of a flexible band slidably located in a slotted rib 14 on the guide. In the retracted position the point of the needle 18 does not extend beyond the end of the guide which is closed, while the eye is opposite a lateral aperture 19 of the guide, through which the suture thread is passed.
Patent GB-323203-A (GB)
Title: Improvements in or relating to the administration of ultraviolet ray treatment
IPC: A61N5/06
Filed: 1928-08-17
Abstract: 323,203. Rosenberg, A. Aug. 17, 1928. Divided on 323,032. IJight, treating diseases with.-A chamber for ultra-violet light treatment is formed with a roof or false ceiling of planished rustless steel, chromium plated brass or other metal, having a reflecting but " rugous " surface, i.e. formed, e.g. by hammering or rolling with a number of facets, and is furnished with screened ultra-violet lamps providing only reflected radiation. The ultra-violet radiation may be supplemented by direct or indirect illumination by incandescent lamps. The chamber may be constructed of glass passing ultra-violet light and may be erected on the roof of a building such as an hotel, heating means such as steam pipes, and sand simulating the sea-shore being provided. Specification 323,032 is referred to. One of the Provisional Specifications refers to smooth reflectors of the materials mentioned above.
Patent GB-634274-A (GB)
Title: Improved apparatus for playing board games
IPC: A63F3/00
Filed: 1947-12-30
Abstract: 634,274. Board games. BIRD, L. E. Dec. 30, 1947, No. 34617. [Class 132 (ii)] Distinctively marked pieces 10 representing engines on stands 11 are moved according to the throw of a dice over a track 2 branched at each end, the branches 3 terminating in bays 4, 41, cards 9, bearing representations of waggons, vans or coaches and being distinctively marked, being moved from the bays 4 to the bays 41 when an " engine " piece attains a bay 4. Hazards are marked on the track 2.
Patent GB-434824-A (GB)
Title: Improvements in and relating to steam-generating installations with superheaters
IPC: F22B29/02
Filed: 1933-12-09
Abstract: 434,824. Water-tube steam boilers. PARSONS MARINE STEAM TURBINE CO., Ltd., and COOK, S. S., Turbinia Works, Wallsend-on-Tyne. Dec. 9, 1933, No. 34738. [Classes 123 (ii) and 123 (iii)] A steam generator comprises water-walled generating tubes of a combustion chamber operating at temperatures of 3000-3500‹ F., the walls being proportioned to work at an unusually high rate of heat transfer, other tubes in which remaining steam is generated over which combustion gases are passed at high velocity, positive means for circulating water through the tubes, an air preheater in which the air or combustion gases have a high velocity, a separator, and a superheater proportioned to work at a normal rate of heat transfer with moderately high steam and low gas velocities over the superheating surface. The high velocities of steam or gas are above 100 ft. per second. An installation comprises two upright front drums 4, 5 and two rear drums 2, 3 of less height with a horizontal bank of tubes 7 connecting the lower part of the front drums and a similar bank 6 connecting the rear drums. A floor 9, crown 10, and side walls 11 of a combustion chamber A are formed by tubes connecting drums 4, 5. A pump (not shown) delivers water to drum 2 from a separator 14 which is supplied from drum 5 through a pipe 16. Pipes 17, 18, 20 lead steam generated in the tube banks into the upper part of the separator. A superheater B is arranged below the front part of the combustion chamber and comprises three superposed drums 23 at one end connected by horizontal tubes 25 to similar drums 24 at the other, the steam making three passes through these tubes, the number of which increases towards the outlet to provide for the increasing volume. To vary superheat a damper 27 may be operated to vary the relative flow of gases over the tube bank 7 and the superheater tubes. A constant flue gas velocity is maintained by arranging a wall 28 at an angle diminishing the flow area to correspond with decreasing volume as the gases cool. Combustion air passes through a preheater C and a duct 30 to burners 12, a proportion passing through apertures 33 in an inner furnace casing 31 to prevent overheating of the walls. Fans &c. are provided to increase the gas velocity and the rate of heat transmission. Feedwater may be supplied to the suction pipe of the circulation pump or to the separator, which has a floatcontrolled water level somewhat higher than the uppermost water-tubes.
Patent GB-1032476-A (GB)
Title: Variable speed transmission controls
IPC: F16H61/50
Filed: 1964-08-25
Abstract: 1,032,476. Control of change speed gears; hydraulic torque converters. BORG-WARNER CORPORATION. Aug. 25, 1964 [Sept. 3, 1963], No. 34789/64. Headings F2C and F2D. In an hydraulic control system for an automobile change-speed gear driven through an hydraulic torque converter 15, the fluid pressure supplied to the torque converter is made proportional to the depression of an engine throttle actuator, by a secondary regulator valve 55 supplied from a main regulator valve 54 of the control system and biased by throttle variable (TV) pressure 70 supplied by a valve 56 loaded by the actuator. This is stated to ensure a smooth shift from neutral to drive. The change-speed gear and the control system thereof (not shown) are substantially as described in Specification 973,493. Pressure in a servo-line 62 fed by input and output pumps 51, 52, respectively, is regulated by the main regulator valve 54, the spool of which moves leftwards, when the bias due to servo pressure 62 and a modulator pressure 65 dependent on TV pressure 70 and output speed overcomes an opposing bias due to a spring and to TV pressure 70, to admit fluid from the line 62 into the torque converter supply line 66. The spool of the secondary regulator valve 55 is biased leftwards by converter supply pressure 66 and rightwards by a spring 83 and TV pressure 70, the spool moving leftwards when the force of the supply pressure 66 exceeds the combined force of the spring 83 and the TV pressure 70 on the differential area of the lands 91, 92, to exhaust the line 66 to a lubricant line 67 supplying the gear bearings, and, on further movement leftwards, to a line 68 leading to the suction side of the pump 51
Patent GB-1356071-A (GB)
Title: Polyethers containing oxetane groups
IPC: C08G65/18
Filed: 1972-07-25
Abstract: 1356071 Polyoxetanes RHONE-POULENC SA 25 July 1972 [26 July 1971] 34815/72 Heading C3B Polyoxetanes have a M.W. > 5000 and at least 10% of the total number of recurring units in the polymers contain free oxetane groups. The polymers may comprise recurring units in which each of Y and Z may independently represent a heteroatom and/or functional group, e.g. halogen, OH, CN, RS, ArO, ArS, N(Ar) 2  or NH 2  (Ar is an aromatic radical of R = C 1-10  alkyl or cycloalkyl) ; the chain oxygen atom of each recurring unit is attached to the chain methylene group of the adjacent recurring unit. The polymers may be prepared by reacting a basic compound, e.g. Na or K hydroxide, ethylate or methylate, in a protic solvent medium, with a polymer having a M.W. > 5000 and comprising recurring units  and optionally units  in which each of Y 1  and Z 1  have the same definition as Y and Z above or is an ArCOO- or R-COO radical with the proviso that units (III) are different from units (IV), and X represents a halogen atom, at least 10% of the units having the formula (IV). A suitable protic solvent medium is a mixture of (i) water or a C 1-4  aliphatic alcohol and (ii) tetrahydrofurane, dioxane or hexamethylphosphotriamide. The starting polymer may be obtained by reacting a poly-bis-(halomethyl)oxetane with a compound Y<SP>2</SP>M in which Y<SP>2</SP> is RCOO-, ArO 1 -ArCOO-, -CN, -N(Ar) 2 , ArS- or RS group, M being an alkali metal. The oxetane containing polymers are fibre and film forming and may be cross-linked, e.g. with BF 3  or PF 5  or other monomers which react with 1,3-epoxide groups.
Patent GB-471405-A (GB)
Title: Illuminating arrangements for indicating devices
IPC: B60K37/00
Filed: 1936-12-18
Abstract: 471,405. Clocks. GENERAL MOTORS CORPORATION. Dec. 18, 1936, No. 34823. Convention date, Dec. 26, 1935. [Class 139] [Also in Group XIX] The transparent indicia-bearing panel of an indicating device is illuminated internally by light passing through apertures in a back plate and reflected from strips situated on the front side of the panel and opposite the apertures, one or more pointers associated with the indicia being separately and indirectly illuminated from the same source of light. The invention is described as applied to indicating instruments for automobiles but may be applied to clocks and other indicators. As shown, the dial comprises a transparent disc 50 provided on its rear side with indicia 54 with which cooperate the pointers 40 of measuring instruments 10. These pointers are visible through an aperture 60 in a plate 44, the instruments being hidden by a second plate 62. A shrouding plate 46 arranged in front of the disc covers those parts of the dial that are not required for indicating purposes. The dial is illuminated by light from a lamp 24, rays from which pass through an aperture 36 in a conical reflector 34 to a reflector 56 on the front of the disc, whence they are internally reflected and illuminate the whole disc. The pointers are illuminated by light from the reflector 34 passing through apertures 38 in a cylinder 26. In a modification, the central reflector 56 is replaced by a peripheral ring of paint applied to the front surface of the dial and illuminated by one or more lamps situated at the rear of the casing. In this form, the pointers are illuminated by reflection from the white inner walls of the casing.