baber/WOPTO huggingface dataset:
Patent GB-1456471-A (GB)
Title: Refrigeration circuits
IPC: F01C1/344
Filed: 1975-04-16
Abstract: 1456471 Vane-type compressors STAL REFRIGERATION AB 16 April 1975 [23 April 1974] 15730/75 Heading F4H [Also in Division F1] A non-radial vane compressor in which the vanes 3 sweep two working cavities employs the spaces and the bottom of vane slots 2 as compression chambers. As shown, the compressor is incorporated in a refrigeration circuit. Vaporized refrigerant enters the working chambers 11 between the vanes 3 via inlet 5 and compressed refrigerant is discharged via outlet 6 and thence via condenser 17 and expansion valve 19 to an intermediate pressure receptacle 21. Gas from receptacle 21 is fed via conduit 22 to a channel 13 which communicate with inlet grooves 12 in the end faces 7, 8. As the vanes are moving out of the slots when the bottom of slots 2 communicate with grooves 12, gas is sucked into slots 2. Compression of gas in the slots 2 then takes place and the gas is then discharged via outlet grooves 14 in the end faces to channels 15 and line 23. Liquid refrigerant from receptacle 21 is fed via expansion valve 20 and vaporizer 18 back to inlet 5.
Patent GB-653093-A (GB)
Title: Microphone lift apparatus
IPC: H04R1/08
Filed: 1948-06-10
Abstract: 653,093. Hoists. HOULDING, F. G. June 10, 1948, No. 15732. [Class 78 (iii)] Microphone lift apparatus comprises carrier means for supporting a microphone movable up and down a vertical guide by winding gear operated by an electric motor, and electrical means including a remote control switch for energizing the motor remote setting means for predetermining the extent of movement of the carrier means and contact means displaceable with and proportionately to the movement up and down ot the carrier means and serving to de-energize the motor at a position of the carrier means predetermined by the setting means. The microphone carrier 4 is mounted on rollers 5 moving on a vertical guide 1 between levels 2 and 3. The microphone is attached by spring means to a support 6 on the carrier. The carrier is raised or lowered by a cable 8 passing round pulleys 10, 11 and operated by a motor 12 through suitable gearing and clutch arranged to slip to allow manual operation. The trap door 15 is raised when a projection 27 on the support strikes a projection 26 linked to the rod 17. In a modified form the microphone is mounted at 68 on a tube 67 sliding within a tube 63 carrying a counterweight 64. On the guide tube are two plates 70, 71 carrying drive pulleys which bear through slots in the tube 63 on the tube 67. Spindles 73 of the pulleys 72, Fig. 3 (not shown) carry a worm-wheel 74 and the plate 71 has a part 75 for mounting the motor 12, the spindle of which has a worm 76 adapted to engage the wheels 74. The wheels 74 are secured to the spindles 73 by clutches which slip to allow manual operation. The plates 70, 71 carry a frame for a potentiometer 30 and a tapper 31 operated by a screw 80 connected to a friction pulley contacting the tube 67. A potentiometer 38 and contact 39 are incorporated in a remote control device 40 having a switch' 41, movable contact 42 and contacts 43, 44. The current is supplied from a transformer 34 through a rectifier 36 and when the switch 41 is operated, the relay 35 is actuated to energize through switch 32 one or other field coils 12a, 12b and cause the motor 12 to run to raise or lower the microphone and at the same time move the contact 31 until the coil 35a ceases to be energized, the switch 32 is opened and the motor stops. The microphone is shortcircuited during movement by contacts 49, 50 controlled by a relay 51. A double throw switch 45 determines the direction of movement of the microphone and the amount of movement is determined by the setting of the potentiometer 38 which may have an indicator graduated for height. The trap doors 15 are automatically opened and closed under the control of a spring 87. In a modified circuit for A.C. supply, a cut-out switch is provided for the whole circuit and linked to the remote control switch. A warning light indicates when the circuit is complete and a cut-out switch is provided for the microphone when it is below stage.
Patent GB-734418-A (GB)
Title: Improvements in or relating to manufacture of hexachlorobenzene
IPC: C07C17/00
Filed: 1952-06-23
Abstract: Hexachlorobenzene is prepared from benzene hexachloride by treating with chlorine in the presence of light or a chlorination catalyst at a temperature between 200 DEG  and 350 DEG  C., preferably between 220 DEG  and 280 DEG  C.  The starting material is preferably benzene hexachloride from which the gamma isomer has been removed.  The chlorination catalysts may, for example, be iron salts such as ferric chloride, or sulphur, antimony, arsenic, bismuth, tin, selenium or tellurium or their halides or oxyhalides.  Examples are given. Reference has been directed by the Comptroller to Specification 711,172.
Patent GB-459206-A (GB)
Title: Improvements in or relating to rotatable air ventilating screw propellers
IPC: F04D29/38
Filed: 1936-06-05
Abstract: 459,206. Screw propellers. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Hartzell Industries, Inc. ; Roosevelt Avenue. Piqua, Ohio, U.S.A.) June 5, 1936, No. 15808. [Class 114] A screw-propeller blade is formed with the outer half of its leading edge 14 as a swept back curve to the tip 18 at about 45‹ to the radial line 17. The trailing edge 20 is doubly curved and the general shape of the blade is similar to that of a bird's wing. The blade sections are of aerofoil type and of decreasing angles of attack from root to tip. The chord length contres lie on a line 21 which is swept back throughout at least the outer half of the blade length. The length of the blade is about equal to three times the maximum chord length.
Patent GB-230695-A (GB)
Title: Improvements in finger ring guards
IPC: A44C9/02
Filed: 1924-07-01
Abstract: 230,695. Seeler, A. A. O. July 1, 1924. Finger-rings. - A finger-ring guard comprises a curved strip 12 of resilient material having projections 13 at its ends seating in recesses 11 formed in the interior of the ring. The ends of the projections normally rest, as shown, against shoulders at the extremities of the recesses, with the centre of the strip spaced apart from the ring. The recesses 11 may be formed by hammering with a die.
Patent GB-464177-A (GB)
Title: Variable-speed friction gearing
IPC: B23B47/02
Filed: 1936-06-08
Abstract: 464,177. Variable - speed friction gearing. WESSELMANN - BOHRER CO. AKT.-GES. June 8, 1936, No. 16005. Convention date, Feb. 25. [Class 80 (ii)] Driving and driven discs 4, 9 in a drilling or other machine-tool drive are pressed together with a force dependent on the position of bevel rollers 5, 8 which are traversed across the face of the discs along a pair of transverse guideshafts 13 to vary the speed. The rollers are both secured to a shaft 6, carried in a slide 7 screwing on one of the guide-shafts 13, which latter carries a speed-adjusting hand wheel 12. The slide 7 is formed with a lateral plate 20 which slides on rods 18, pivoted to levers 16, formed with toothed segments 15, engaging rack-teeth in thrust-sleeves 3, bearing on the friction-discs 4, 5. The rods 18 carry springs 19, which bear on the plate 20 and transmit to the discs a pressure which increases as the rollers 5, 8 and the plate 20 move towards the lowspeed position shown in Fig. 4.
Patent GB-473673-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/74
Filed: 1936-04-18
Abstract: 473,673. Cathode-ray tubes. ZEITLINE, V., ZEITLINE, A., and KLIATCHKO, V. April 18, 1936, No. 16050/37. Convention date, April 19, 1935. Divided out of 473,893. [Class 39 (i)] The distortion of the raster produced by a deflection system in which one plate is maintained at a fixed potential is compensated by inclining the screen at an angle to the axis. As shown, the plate 4 is connected directly to the anode 3, and the plate 5 receives the deflecting voltage. A rectangular raster appears on the screen 17 and is observed from the scanned sides. Both deflecting systems may be of this kind and the screen may be tilted accordingly. The plate 5 may be subdivided by a longitudinal or diagonal cut and the parts may be connected to tappings on a potentiometer to which the deflection voltage is applied. A formula for the angle of inclination of the screen is given. Specification 442,500 is referred to.
Patent GB-1431414-A (GB)
Title: Prostanoic acid derivatives
IPC: C07C59/74
Filed: 1974-04-11
Abstract: 1431414 Prostanoic acid derivatives SANKYO CO Ltd 11 April 1974 [19 April 1973] 16159/74 Heading C2C Novel compounds I in which A is C 1-5  alkylene, R<SP>1</SP> is C 4-10  alkyl and R<SP>2</SP> is H or C 1-6  alkyl, and pharmaceutically acceptable salts thereof, are prepared by oxidizing a compound II in which R<SP>3</SP> and R<SP>4</SP> are the same or different hydroxyl-protecting groups to give a compound III removing the hydroxyl-protecting groups from compound III, and, if desired, salifying the product obtained. Compounds II and intermediates therefor are prepared as shown in the following reaction scheme in which R<SP>6</SP>, R<SP>7</SP> and R<SP>8</SP> are hydroxyl-protecting groups. Pharmaceutical compositions having oxytocic and gastric acid secretion inhibitory activity, for oral or parenteral administration, comprise one of the above novel compounds together with a pharmaceutical diluent or carrier.
Patent GB-113933-A (GB)
Title: Improvement in Brassieres.
Inventor: KOPS WALDEMAR
IPC: A41C3/02
Filed: 1917-11-07
Abstract: 113,933. Kops, W. March 7, 1917, [Convention date]. Bust improvers; body under garments. - A brassiere comprises both a body member or camisole and bust forms. The camisole may be formed of two parts 10, 11, united permanently at the back by stitches 12 and, when in use, at the front by buttons 13 and button holes 14 on the two free edges. It is provided with shoulder straps 15, 16. The bust forms are secured to the interior of the body member, and consist on each side of a piece of fabric 19, usually elastic, having border straps 20, 25 along its edges. The strap 25 is provided with eyes 26 to engage with hooks on the corresponding edge of the other bust form, while to the strap 20 are connected laces 21 which pass through the eyelets 18 of an anchor strap 17 secured to the body member vertically under the arm hole. These laces are joined to a tape 23 which passes through a hole in a tab 24 and in the body member. The bust forms are first secured together, then the free ends of the two tapes are tied together so as to adjust the bust forms as required, and finally the camisole is secured. Specification 113,934 is referred to.
Patent GB-1032279-A (GB)
Title: Telephone set
Inventor: TOMMASI GIOVANNI BATTISTA
IPC: H04M1/23
Filed: 1963-04-25
Abstract: 1,032,279. Sets. SOC. ITALIANA TELECOMUNICAZIONI SIEMENS S.p.A. April 25, 1963 [May 4, 1962; April 9, 1963], No. 16282/63. Heading H4J. A telephone handset comprises two parts, one containing the mouthpiece and the other the earpiece, hinged together. As shown, the handset comprises two body parts 1<SP>1</SP>, 1<SP>11</SP>, hinged together at E and containing the earpiece, 2 and the mouthpiece 3 respectively. A hook switch 4 and a dial 5 are mounted in body part 1<SP>1</SP> while a support magnet 8 is mounted in body body part 1<SP>11</SP>. The handset may also contain a bell or buzzer and may be connected to the telephone network by wires or by a radio link. Magnet 8 co-operates with an iron plate 9 attached to a wall M to support the handset when not in use. When body part 1<SP>1</SP> is gripped and the handset removed from the wall and inverted, body part 1<SP>11</SP> pivots into line with part 1<SP>1</SP> and operates hook switch 4. In other embodiments the hand set may be hung from a hook on a wall, Fig. 5 (not shown), or placed flat, Fig. 4 (not shown), or stood on its hinged ends on a horizontal surface, Fig. 3 (not shown). The handset may also be constructed in three parts hinged together, Fig. 7 (not shown). The handset may be constructed with the dial coaxial with the earpiece, so that when folded with the mouthpiece and earpiece towards one another, the dial is on the outside of the handset, Figs. 8 to 10 (not shown).
Patent GB-854453-A (GB)
Title: Improvements in and relating to illumination systems
IPC: G08G5/02
Filed: 1958-05-21
Abstract: 854,453. Systems of lighting. HARLEY, M. C. May 5, 1959 [May 21, 1958], No. 16335/58. Class 75(4). A strip of land such as an aircraft landing strip is illuminated by a plurality of selfcontained electric lighting sets each of which includes a motor driven generator and projector, the lighting sets being disposed at intervals at least one side of the strip and reflecting bodies being situated adjacent to both sides of the strip so that light from each projector falls on a plurality of the reflecting bodies. The preferred arrangement is as shown in the drawing in which f to a are lighting sets, e are reflecting bodies, b denotes the threshold of the strip and a a further lighting set. The arrows denote the direction of the light beams.
Patent GB-695717-A (GB)
Title: Sodium carbonate in cumene oxidation
IPC: C07C409/10
Filed: 1950-06-30
Abstract: Cumene is oxidized in liquid phase to cumene hydroperoxide with elemental oxygen in presence of solid sodium carbonate at a temperature above 90 DEG  C. and below about 130 C.  The amount of carbonate used is preferably 0.5-25g. per 100 cc. of cumene; it is removed from the product by decantation and washing, and may be regenerated by washing with acetone and then water.  An example is given of the process.  Reference has been directed by the Comptroller to Specification 630,286.
Patent GB-824316-A (GB)
Title: Semi-continuous fused halide salt bath electrolytic process for the production of high melting point reactive metals
IPC: C25C3/34
Filed: 1956-05-29
Abstract: 824,316. Electrodeposition of metals of Groups IV A , V A  and VI A , UNION CARBIDE CORPORATION. May 29, 1956 [May 31, 1955], No. 16512/56. Class 41. Titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten are cathodically deposited in crystalline form from a fused alkali metal chloride-fluoride bath containing up to 80 parts by weight of an alkali metal chloride and at least 20 parts by weight of an alkali metal fluoride to which is added a halide of the metal deposited in such amount that the alkali metal fluoride is in excess of that required to form the double fluoride salt of the alkali metal and said metal to be deposited. Electrolysis is effected at a bath temperature of 750‹ to 800‹ C. with an applied voltage of 4 to 7 volts. Examples are given for the production of titanium, niobium and tantalum. The deposits are freed from electrolyte by leaching with hot water and arc-melted in an inert atmosphere to form ingots. Reference has been directed by the Comptroller to Specification 678,807.
Patent GB-924070-A (GB)
Title: Improvements in drill bits for percussive drilling and hard metal cutting inserts therefor
IPC: E21B10/58
Filed: 1959-05-14
Abstract: 924,070. Percussive tools. SANVIKENS JERNVERKS A.B. May 14, 1959 [May 16, 1958; Sept. 23, 1958], No. 16625/59. Class 124. A rock drill bit has at least one brazed insert consisting of a body portion and a cutting edge portion extending vertically from the body portion, the body portion having plane parallel sides and the cutting portion being in the form of a ridge having at least part of its side surfaces from the top of the ridge parallel and unobstructed for a height of not less than 2 mm. and not more than 6 mm., the width of the ridge, at least in the vicinity of the axis of the bit being not less than 2 mm. and not more than 5 mm. As shown, the insert consists of a body portion 13 and a cutting portion 14, the latter merging into the former in the manner shown or by curved surfaces, Fig. 9, not shown. The cutting portion may be of greater thickness and height at the periphery than at the centre. The cutting edge may be sharp, rounded or flat and may lie along the longitudinal centre line of the insert or may be at an angle to it.
Patent GB-151386-A (GB)
Title: Improvement in springs for perambulators
IPC: B62B9/18
Filed: 1919-07-02
Abstract: 151,386. Payne, A. J. July 2, 1919. Laminar and single-bar springs.-A perambulator spring comprises a C spring B attached to a plate spring A by means of two transverse bars C<1>, C<2>. By this arrangement the plate spring is supported on the axle underneath the body of the perambulator, while the C spring functions along the side. The bars C<1>, C<2> may be joined by a clip or casting:
Patent GB-1383076-A (GB)
Title: Foil trays
IPC: B65B7/28
Filed: 1972-04-11
Abstract: 1383076 Foil containers; closing containers BOWATER PACKAGING Ltd 27 March 1973 [11 April 1972] 16642/72 Headings B8D and B8C A lid 3 is secured to a filled rectangular aluminium foil tray 1 having a bead 5 extending around the entire periphery of a continuous border 4 upstanding from a lid-seating shoulder by folding and flattening the border and bead portions extending along the central portions of the tray sides against the lid whilst leaving the border and bead portions at the corners upstanding. The lid may be additionally secured by pins. The crimping and flattening is effected by dies 7 and 8, the die 7 having cut-puts 9, Fig. 4 (not shown), for leaving the corner portions upstanding.
Patent GB-184757-A (GB)
Title: Improvements in and relating to differential pressure gauges particularly applicable to fluid flow meters
IPC: G01F5/00
Filed: 1921-04-11
Abstract: 184,757. Rogers, F. H., (Republic Flow Meters Co.). April 11, 1921. Tell-tale apparatus.-An electric apparatus for measuring the pressure difference in the limbs of a U-tube, liquid-level gauge, particularly applicable to a fluid flow meter comprising a plurality of resistance spools 10 and depending contact wires 11 of different length, has means for adjustably supporting the spools and wires to vary the position of the wires with respect to the mercury or other conducting liquid in the U-tube. The static and dynamic chambers 7, 8 communicate by means of a U-tube 9 and a central shell 4 which forms a well 6 in which is disposed the wires 11 depending from the resistance spools 10 that are carried on a screw 12 adjustable through a packing nut 13 for regulating the zero point of the gauge and which forms one of the terminals, the other being mounted on the member 1 or 2. The resistance wound on the spools 10 and the length of the wires 11 is so adjusted that the flow of current is directly proportional to the rate of flow of the fluid. Specification 183,201 is referred to.
Patent GB-841257-A (GB)
Title: Improvements in or relating to metal cleaning compositions
IPC: C11D1/00
Filed: 1956-05-30
Abstract: A metal-cleaning composition comprises by weight (a) 27.8-126.8 parts of alkali metal salt builders such as light soda ash, anhydrous crystalline sodium tripolyphosphate, anhydrous trisodium orthophosphate and monosodium orthophosphate monohydrate; (b) 1.25-10 parts of surface active agents, such as polyethylene glycol monolaurate, alkaryl polyglycol ethers or 2-ethylhexyl-O-PO(OR)2, where R is derived from polyethylene glycols, or mixtures thereof; (c) 1-10 parts of an alkyl phosphate of formula (CnH2n+1)3PO4 where n is 2-5, preferably tributyl phosphate; and (d) 0-6 parts of a rust preventive consisting of sodium or potassium nitrite or dichromate or an organic nitrite.  In addition the composition desirably includes 1 part of a silicone containing dispersed colloidol silica as a defoaming agent and, when the metal being treated is aluminium, sodium metasilicate instead of any trisodium orthophosphate present. Dye and perfume may also be incorporated.ALSO:A composition suitable for cleaning both ferrous and non-ferrous metals comprises by weight (a) 27.8-126.8 parts of alkali metal salt builders such as light soda ash, anhydrous crystalline sodium tripolyphosphate, anhydrous trisodium orthophosphate, and monosodium orthophosphate monohydrate; (b) 1.25-10 parts of surface active agents such as polyethylene glycol monolaurate, alkaryl polyglycol ethers or 2-ethylhexyl-O-PO(OR)2, where R is derived from polyethylene glycols, or mixtures thereof; (c) 1-10 parts of an alkyl phosphate of formula (CnH2n+1)3PO4, where n is 2-5, preferably tributyl phosphate; and (d) 0-6 parts of a rust preventative consisting of sodium or potassium nitrite or dichromate or an organic nitrite, the latter being preferred for ferrous metals.  In addition the composition desirably includes 1 part of a silicone containing dispersed colloidal silica as a defoaming agent and, when the metal being treated is aluminium, sodium metasilicate instead of any trisodium orthophosphate present. Dye and perfume may also be incorporated.
Patent GB-466538-A (GB)
Title: Improvements in central-station fire-control for automatic guns
IPC: F41G5/04
Filed: 1936-06-16
Abstract: 466,538. Machine gun fire control. SOC. ANON. DES ANCIENS ETABLISSEMENTS HOTCHKISS & CIE. June 16, 1936, No. 16739. Convention date, July 9, 1935. [Class 92 (ii)] Relates to means for selectively controlling from a distance the fire of one or more machine guns by a master handle 17, Fig. 6, and selectors 9 corresponding to each gun, and consists in providing for each gun an auxiliary handle 1, Fig. 1, which controls one or more preparatory operations, such as retracting a safety lock 4 or recocking the gun, before operating on the selector 9. Fig. 1 shows the handle 1 connected by a cable 3 with a spring-controlled detent 4 for locking the gun M at safe. The arrangement is such that, when the handle 1 occupies the full line position T, the control 8 of the selector is actuated and the lock is removed, movement of the handle to the dotted line position S causing the release of the selector and the application of the lock. The selector may be arranged to act pneumatically, electrically or mechanically to suit the type of firing transmission from the master handle. Fig. 15 shows the auxiliary handle 1 adapted to operate in succession upon a valve 46 controlling the pneumatic actuation of the safety look 4 and upon a valve 8 controlling the fire-selector 9. Fig. 17 shows the auxiliary handle provided with a shoulder 22 for operating the fire-selector valve 8, a cam surface for actuating the valve 46 of the safety lock and a shoulder 35 for acting upon a valve 36 controlling the recocking cylinder. The corresponding positions of the handle are shown at T, S, R. A further valve controlling the inlet of compressed air to the recoil cylinder of the gun may also be provided. Fig. 19 shows a group selector 41, arranged in series with the selectors 9a, 9b, &c., for convenience in firing only those guns the auxiliary handles of which have been previously set for fire.