baber/WOPTO huggingface dataset:
Patent GB-283187-A (GB)
Title: Method of treating raw phosphate and the like
IPC: C05B11/04
Filed: 1927-04-26
Abstract: 283,187. Liljenroth, F. G. Jan. 8, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Manures.-Raw phosphates containing calcium phosphate are treated with acid to recover phosphoric acid, and the lime is converted by the addition of sulphate solution into calcium sulphate, which is separated with or without other insoluble matter from the phosphates and treated with ammonia and carbon dioxide to form ammonium sulpbate and calcium carbonate. The ammonium sulphate solution may be used to precipitate calcium from the solution obtained by treating raw phosphates with insufficient sulphuric acid or an acid with a soluble calcium salt, e.g. nitric acid, the solution finally being neutralized with ammonia and concentrated to form a mixed manure.
Patent GB-327021-A (GB)
Title: Improvements in combined switches and wall connectors
IPC: H01R13/707
Filed: 1929-04-10
Abstract: 327,021. Lundberg & Sons, Ltd., A. P., and Pegg, G. April 10, 1929. Plug couplings combined with electric switches. - A combined switch and wall connector has associated with the socket member an obturator mounted to slide in relation to one or more of the socket holes and a clutch adapted to act on a pin of the plug member, the obturator and clutch being, respectively, actuated by the switch movement. The obturator 16 adapted to move in vertical slides has a hole 17 which corresponds with the socket opening when the obturator is in its lowest position and is connected by springs 21 to a cross-pin 19 connecting two parallel links 18 which are pivoted at their upper ends to a part of the switch movement. The clutch 22 is pivoted to lugs mounted on the socket 15 and its lower cam-shaped end projects through a slot in the socket. When the switch is in the " off " position a cross-bar 20 on the links 18 engages with the upper end of the clutch and holds it in the disengaged position against the action of a tension spring 26. If the switch is moved to the " on " position and the plug member is in position the links 18 are drawn up against the action of springs 21 and the crossbar 20 moves away from the clutch allowing it to be drawn over by the spring 26 so that it grips the pin 15 and prevents the plug member being removed. If the switch is moved to the " on " position without the plug being in position the spring 21 is sufficiently stiff to draw the obturator up to cover the socket entrance.
Patent GB-591202-A (GB)
Title: Improvements in safety razors
IPC: B26B21/52
Filed: 1945-05-02
Abstract: 591,202. Safety razors. ANDERSON, J. W. May 2, 1945, No. 11109. Convention date, July 1, 1944. [Class 30] In a safety razor a blade-carrying head is secured to a rigid element mounted within a handle and axially rotatable therein, and the handle can, under finger pressure, bear on the rigid element to restrain its rotation. As shown, a resilient or distortable handle 10, preferably of moulded plastic, ds mounted on a shaft 7 adapted to screw on to a member 5 which also receives the blade-carrying head 2. The handle is provided with longitudinal slots 13 so that when manual pressure is applied the handle bears on the shaft 7 to restrain its rotation. The handle may be made from a material such as vulcanized rubber, and the slots 13 are then omitted. In a modification the handle is made of rubber and part of it adjacent to the shaft 7 is hollowed out so that when pressure is applied to the handle, it lengthens and friction is created between the handle and the members.
Patent GB-1535847-A (GB)
Title: Technetium-99m labelled tin colloid for body scanning
IPC: A61K33/24
Filed: 1976-03-19
Abstract: 1535847 Technetium 99m labelled tin colloid RADIOCHEMICAL CENTRE Ltd 4 March 1977 [19 March 1976] 11295/76 Heading A5B [Also in Division G6] Technetium-99m-labelled tin colloid for liver scanning is made by adding an aqueous solution containing Tc-99m in the form of technetate to a reagent comprising 1 part by weight of sodium, potassium, or ammonium fluoride and from 0.00075 to 0.75 parts by weight of stannous tin. The reagent may comprise 0.75-750 micrograms of stannous tin, 50-7000 micrograms of sodium, potassium, or ammonium ion, and 40-5000 micrograms of fluoride asceptically packaged in a container. The reagent may be in aqueous solution or freeze-dried.
Patent GB-610665-A (GB)
Title: An improved insole for boots, shoes and other articles of footwear
IPC: A43B17/00
Filed: 1946-04-16
Abstract: 610,665. Insoles for footwear. LIEBMANN, E. A. April 16, 1946, No. 11365. [Class 17(ii)] An insole for weltless footwear comprises a forepart 1 of cork united at 5 by a skived joint to a rear part 4, comprising a shank and heel seat, of relatively stiff material. The forepart is covered on both faces with textile material 3 and the edge is reinforced by a strip or strips 6 of textile material applied to one face. Arch-supporting pads 10 and extensions 9 may be provided on the insole. Specification 527,021 is referred to.
Patent GB-567688-A (GB)
Title: Improvements relating to fluid controlling valves
IPC: F16K1/02
Filed: 1943-07-13
Abstract: 567,688. Valves. ELLISON INSULATIONS, Ltd., MORGAN, W. A., and CATTERMOLE, H. S. July 13, 1943, No. 11372. [Class 135] A multiple-way hydraulic valve has two independently actuated lift valves o arranged in supply and exhaust chambers and adapted to co-operate with seats f on the opposite ends of an axial bore e connected at an intermediate point g with the machine to be controlled. The valve members are slidably and rotatably mounted in screwed actuating spindles engaging threads on plugs h screwed into the supply and exhaust chambers and provided with actuating handles k. The valve members which are acted on by springs q are held in recesses in the ends of the spindles by screwed rings p and are formed with transverse and axial passages, whereby fluid is admitted to the recesses which in turn are connected by passages t with chambers housing packing rings l surrounding the valve spindles.
Patent GB-1163664-A (GB)
Title: Photographic Camera for Use with an Artificial Light Source.
IPC: G03B15/04
Filed: 1967-03-10
Abstract: 1,163,664. Cameras for flash operation. AGFA -GEVAERT A.G. March 10, 1967 [March 11, 1966], No.11407/67. Heading G2A. A camera 1 has an accessory shoe 2 in which is mounted the foot 3 of an artificial light source such as a flash apparatus. Beyond the space actually enclosed by the shoe are two spring-loaded pins 6, 7, slidable in respective slots 4, 5, which pins are associated with exposure-controlling means. The pins are engaged by control surfaces 9, 10 of the foot 3 when this is inserted into the shoe in direction a. Fig. 2 shows the arrangement when no light source is mounted in the shoe, i. e. set for daylight exposure. The light received by the photo-cell 13 is indicated by the galvanometer 15, which sets the diaphragm aperture either directly or by a follow-up pointer. When the artificial light source is attached, pin 6 is pushed along so as to change over a contact 12, which switches a variable resistor 14 into the circuit instead of photo-cell 13. The value of resistor 14 is varied by a tapping 17 coupled to a distancesetting means. Movement of pin 7 causes a contact 18 to switch into the circuit a variable resistor 19 across the galvanometer, and further sets the value of this resistor by means of a tapping 20. This value is determined by the position of surface 10, which is chosen so as to be indicative of the guide number of the flash apparatus. Figs. 3, 4 and 5 (not shown) are of a modification in which the slidable pins move in slots (32, 33) sunk into the base of the shoe, and the function of the control surfaces 9, 10 is carried out by pivoted levers (42, 43) on the attachment foot which enter into these slots. The shoe of the invention may thus also be used with an ordinary attachment foot having no special provision for engaging the pins 6, 7.
Patent GB-570432-A (GB)
Title: Improvements in connection with ventilator fittings
IPC: F24F13/06
Filed: 1943-07-14
Abstract: 570,432. Ventilators. MUSGRAVE, J. L:, LEWIS, D. G., BESTRE, A V., and CRITTALL & CO., Ltd., R. July 14, 1943, No. 11424. [Class 137] An iris or multi-leaf shutter is located in an opening formed in the cover plate 3 of a ventilator distributor comprising a number of coaxial rings as described in Specification 398,951, means being provided to restrict the movement of the shutter carrier ring to a predetermined position. The carrier ring 6, in slots of which pivots of the shutter leaves move when the ring is turned, is operated by the engagement when rotated of midfeathers 7 which carry the rings 8 with lugs 10 punched out of the carrier ring. An adjustable clip or quadrant with upturned flange fixed to the bottom flange 9 of the distributer or a stop on an adjustable sleeve limits the extent of movement of the midfeathers to control the shutter opening. Or instead of the midfeathers and rings moving a rod secured to the carrier ring and passing through a slot in flange 2 or the distributor body 19 may operate the shutter.
Patent GB-1128949-A (GB)
Title: Improvements relating to combustion-type heat radiators
IPC: F24C3/08
Filed: 1966-03-16
Abstract: 1,128,949. Oil fired radiant heaters; incandescent stoves. R. VON LINDE. 16 March, 1966 [16 March, 1965; 26 May, 1965; 28 July, 1965], No. 11488/66. Headings F4B and F4W. A liquid fuel heat radiator comprises a radiation tube 2, a reflector 42 and a combustion air preheater 17 which, together with other essential parts and control units, are mounted on a vertically movable carrier 43 suspended from mounting 48 attached to the ceiling. Pump 26 draws oil from a tank 30, through tube 29 and socket-type coupling 28 to the burner 4; combustion air is drawn through filter 23, by pump 22, and is passed through the air heater 17 and then into the combustion chamber via duct 12. The heat radiator 2 comprises an inner tube 3 and an outer tube, composed of sections 6 and 7, the space between the inner and outer tubes being divided into two chambers 10 and 11 by a flange 9. Before reaching the combustion zone, air from duct 12 enters chamber 10 and so cools, by circulating around it, the inner tube 3; combustion products on leaving the inner tube via holes 14 and outlet 15 pass between the inner and outer tubes and so heat to incandescence the outer tube 7, and then pass, via duct 16, into the air preheater. On lowering the heater, coupling 28, exhaust duct 20 and electrical supply plug 41 automatically disconnect, the nature of the coupling 28 being indicated in Fig. 4, not shown. De-aeration of the pressure line 31 is effected by pipe 51 and a solenoid operated valve 52. In a modification (Fig. 6), an intermediate oil tank (70) is disposed between coupling 28 and burner 4 thereby removing the need for de-aeration. In a further modification (Fig. 7), the heater is fixed and the burner 4<SP>1</SP> is fed with gaseous fuel, hot combustion products heating radiation tube 81 and then passing to combustion air preheater 17<SP>1</SP>.
Patent GB-762308-A (GB)
Title: New cyclopentanophenanthrene derivative and process for its preparation
IPC: C07J75/00
Filed: 1954-04-21
Abstract: The invention comprises 19-nor-17 a -hydroxyprogesterone and a process for its preparation by reducing a ketal of 3-methoxy-17 a -hydroxy17b -acetyl-1,3,5(10)-estratriene with an alkali metal in liquid ammonia, followed by hydrolysis and re-arrangement in acid medium of the 20-ketal of 3-methoxy-17 a -hydroxy-D 2,5(10)-19-norpregnadien-20-one produced.  The intermediate estratriene is prepared from 3-hydroxy-17-acetyl-1,3,5(10), 16-estratetraene by treatment with alkaline hydrogen peroxide to give the 16 : 17-epoxide which is then treated either (a) with a methylating agent and then HBr to form 16 - bromo - 3 - methoxy - 17a - hydroxy-17b  - acetyl - 1,3,5(10) - estratriene which is then treated with hydrogen in the presence of a catalyst and finally with ethylene glycol in the presence of a strong organic acid; or (b) in indifferent order with a methylating agent, ethylene glycol in the presence of a strong acid, and lithium aluminium hydride.  In examples: (1) 3 - hydroxy - 17 - acetyl - 1,3,5(10),16-estratetraene in methanol is treated with 30 per cent hydrogen peroxide in aqueous sodium hydroxide, the resulting 16 : 17-epoxide, (A), treated with alkali and methyl sulphate and the methyl ether obtained refluxed with ethylene glycol in benzene containing p-toluene sulphonic acid to give the ethylene ketal, which is reduced with lithium aluminium hydride to the ethylene ketal of 3-methoxy-17a  - hydroxy - 17b  - acetyl - 1,3,5(10) - estratriene (B); (2) epoxide A is converted to the corresponding ethylene ketal, which is reduced with LiAlH4 to the ketal of 3,17a -dihydroxy-17b -acetyl-1,3,5(10)-estratriene (also prepared from the free keto compound by treatment with ethylene glycol and p-toluene sulphonic acid), and then methylated to B; (3) A is methylated, treated with HBr in acetic acid, and the resulting bromohydrin reduced with hydrogen and palladium on calcium carbonate to 3-methoxy - 17a  - hydroxy - 17b  - acetyl - 1,3,5 (10)-estratriene, which is ketalized to B; (4) B in anhydrous ether is added dropwise to lithium in liquid ammonia, methanol is then added and ammonia allowed to evaporate, leaving the ethylene ketal of 3-methoxy-17a -hydroxy - 17b  - acetyl - D 2,5(10) - estradiene, which is hydrolysed and re-arranged by heating with aqueous methanolic HCl to D 4-19-norpregnen - 17a  - ol - 3,20 - dione. Specification 762,309 is referred to.
Patent GB-236522-A (GB)
Title: Improvements in or relating to machines for producing toothed gears
IPC: B23F23/08
Filed: 1924-11-19
Abstract: 236,522. Gleason Works, (Assignees of Bullock, E. W., and Slade, A. P.). July 5, 1924, [Convention date]. Gear-cutting.-In a gear-cutting machine the tool and blank are periodically partially separated to permit indexing, and the tool is automatically completely withdrawn and the machine stopped on completion of the blank, and when the machine is re-started the tool is automatically fed up to the blank. The machine is of the general type described in Specification 236,511, the blank mounted on an adjustable head, being rolled past the grinding-wheel 20 which is mounted in a support slidable on the bed 2. Means are provided for intermittently dressing the grinding- wheel. The bed 2 is withdrawn from the blank to permit indexing by a cam 111 on the shaft 12, the cam having a switch, device 120 which during normal working is in the position shown in Fig. 7. On completion of the blank the switch is shifted to the position shown in Fig. 8, so that a greater withdrawal movement of the grinding wheel bed is effected. The switch is mounted on a spindle 121 rotated through rack gearing from a sleeve 124 controlled by a yoke-lever 125 actuated by a weight 127. The weight is pivoted to the yoke lever at 128 and is normally held up by an arm 130 engaging an abutment 131. At every tooth operation, a ratchet wheel 140 is actuated by a dog 141 and after a predetermined rotation a pin 145 on the ratchet wheel acts through a controlling-device 137 and lever mechanism to allow the weight 127 to fall and operates the switch 120. At the same time an electric switch 136 is operated to break the motor circuit and stop the machine. The ratchet-wheel 140 is then returned by a spring while the member 137 is held by a latch lever 152. On restarting the machine, the latch 152 is actuated to allow the return of the member 137, and the weight 127 is automatically returned to the raised position by a cam 165.
Patent GB-455096-A (GB)
Title: Improvements in and relating to lubricants
IPC: C10M173/00
Filed: 1935-04-15
Abstract: Lubricants which prevent and remove corrosion on metallic surfaces consist of a lubricating oil and a compound of nickel which is not reduced to metal if heated in use.  1,0 per cent of chromate or oleate is suitable.  The oil may be mineral, animal, or vegetable, and the chromate is preferably colloidal and free from chlorides or other deleterious impurities.  Specification 295,230, [Class 91], is referred to.  According to the Provisional Specification the chromate is preferably that prepared as described in Specifications 406,445, 422,860; or 428,375, [Group XXXVI].
Patent GB-965892-A (GB)
Title: Safety tire and valve therefor
IPC: B60C17/01
Filed: 1963-03-25
Abstract: 965,892. Safety tyre assembly. GOODYEAR TIRE & RUBBER CO. March 25, 1963 [May 31, 1962], No. 11649/63. Heading B7C. [Also in Division F2] A safety tyre assembly comprises an outer tyre 4 mounted on a rim 1, an inner tyre 6 containing an inner tube 1], which may be integral with or separate from tyre 6, and a valve 14 used to inflate both the tube 11 and outer chamber 15 simultaneously, a check valve 34 retaining air in the tube (Fig. 1). The valve 14 (Fig. 2) supplies the tube and outer chamber through ports 30 and 35 respectively and these ports are of such size that the tube 11 is inflated faster and to a higher pressure than chamber 15. Valve 14 incorporates valve core 44, of conventional pattern, and air blown past valve core 44, when pin 45 is depressed, and into passage 26 then opens valve 34 against the pressure within. The inner tyre 6 has grooves 12 formed by ribs 13 around its beads (Fig. 6, not shown) to allow air from port 35 between tyres 4, 6 to outer chamber 15. Fig. 3 shows a further valve 59 incorporated in tube 11 which prevents the pressure differential across tube 11 exceeding a predetermined level. The valve base 23, which carries both valve 59 and a valve 51 as in Fig 2 and is vulcanized to tube 11, incorporates external grooves 25 (Fig 5, not shown) by which air passes from port 35 to apertures 50 in the inner tyre and hence to outer chamber 15. As shown, the inner tyre 46 seats on outer tyre 4 instead of on the rim. Instead of apertures 50, inner tyre 46 may be made of pervious woven fabric. Fig 7 (not shown) illustrates a valve attached to both inner tube and inner tyre when these are an integral unit. Fig 8 shows a valve in which both sections 67, 72 are removable as one unit. Openings 79 allow air into passage 26, and movement of valve stem 71 is limited by its head 73 abutting abutment 74 or the end of cage 68. The adjacent beads of the inner and outer tyres may be cemented together concentrically, or eccentrically (to warn a driver of failure of the outer tyre). The shoulders of the inner tyre may have strips of abrasion resistant rubber 9 (Fig 1) and lubricant may be placed in the outer chamber. The inner tyre may be reinforced with wires 8. Specification 844,685 is referred to.
Patent GB-569887-A (GB)
Title: Improvements in or relating to gas-fired water heaters
IPC: F24H9/20
Filed: 1943-07-17
Abstract: 569,887. Water heaters. PARKINSON STOVE CO., Ltd., FRIEDMAN, H., and HERMANN, R. July 17, 1943, No. 11674. [Class 64 (i)] In a gas-fired water heater comprising a heat exchanger a, having a surrounding water pipe b, and through which the products of combustion pass from a burner d to a flue f, the exchanger is mounted in a sheet metal casing g formed with a vertical passage h, which is open at the top and bottom and is provided with a lateral opening j leading into a chamber e between said exchanger and the flue, and the chamber e is fitted with a baffle and deflectors k, m which are adapted normally to permit the combustion gases to flow freely into the flue but which will cause them to flow into said passage h and through the bottom or top openings thereof if a down-draught occurs or the flue becomes blocked respectively. The passage is preferably of rectangular cross-section, and it may be formed either by securing a channel-shaped metal pressing to the rear wall of the casing or by pressing a channel in the wall of the casing and closing it by a welded-on, &c., cover plate.
Patent GB-809762-A (GB)
Title: Improved hydrodynamic torque converter
IPC: F16H61/62
Filed: 1957-04-10
Abstract: 809,762. Brakes. GENERAL MOTORS CORPORATION. April 10, 1957 [April 25, 1956], No. 11719/57. Class 103 (1). [Also in Groups XXIV and XXIX] A cone brake 55 for braking the second impeller P2 of a torque converter is actuated only when the manually-operable valve 78 is set to "low" when fluid flows from pump 20 via valve 78 to passage 86 causing valve 121 to release the clutch 44 clutching impeller P2 to the first impeller P1, and flowing via valve 91 to brake 55. When the throttle valve is moved upwards, the flow of liquid to the brake 55 is cut off. Specifications 792,398, [Group XXIV], and 809,761 are referred to.
Patent GB-904035-A (GB)
Title: Improvements in magnetic tape recorders
Inventor: NAMENYI-KATZ LASZLO
IPC: G11B27/10
Filed: 1959-04-07
Abstract: 904,035. Timing magnetic tapes; juke boxes. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. April 4, 1960 [April 7, 1959], No. 11743/59. Class 40 (2). A magnetic tape recorder has means to preselect one of a plurality of sections or " blocks " of tape, whereby the tape is advanced at high speed to the pre-selected point and the speed of the tape changes thereafter. The tape is marked at points along its length to define the blocks. Tape passing the guide roller 18, Fig. 2, drives through said roller and worm gearing and the housing 36, Fig. 1. Initially the housing 36 is manually set so that a zero marking on its head 43 is brought into line with a datum mark on the recorder. As the tape is fed, housing 36 rotates serving as a footage indicator. By rotating knob 47, a cam 51, Fig. 1, is set to engage switch 54 shortly before the desired " block " is reached. The tape has transparent spots to indicate blocks and a beam of light shines through these on to a photoelectric device (Fig. 5, not shown), or other known device responsive to marks on the tape. When switch 54 operates the light source is energized, and at the next (i.e. desired) transparent spot the photo-cell is energized, operating appropriate speed-control circuits, and the machine is switched for playback. Track selection may be effected as in Specification 787,594. Specification 868,988 also is referred to.
Patent GB-118091-A (GB)
IPC: F04B17/05
Abstract: 118,091. Pelterie, R. Esnault-. July 9, 1917, [Convention date]. Driving pumps.-In a direct-acting internalcombustion engine having a piston a and a movable cylinder b reciprocating one within the other in the fixed cylinder c, rotary pumps m<4> for supplying cooling-water and lubricant are driven from a projection b<4> on a fork q<1> on the piston a through a lever c<4>, a pawl and ratchet, and a shaft d<4>. The ratchet-wheel drives its shaft d<4> through a stiff coiled spring.
Patent GB-513775-A (GB)
Title: Improvements in or relating to cartons and the like containers
IPC: B65D5/64
Filed: 1938-04-20
Abstract: 513,775. Cartons. MANDL, G. April 20, 1938, No. 11821. [Class 18] The lid flaps a, b of a carton interengage in the closed position and a sealing band p placed around the carton passes through openings in stirrups t on the flaps. The flap a is formed with slots s forming tongues a<1> ... a<3> which lie alternately above and below the flap b; or the underlying flap may have a tongue which extends from its free edge and can be passed through a slot in the other flap and turned back, this tongue carrying one of the stirrups on its exposed face; or both flaps may carry tongues which, in conjunction with their flaps, constitute pockets each housing the free edge of the other flap. The side edges of slots s in one or both of the flaps be formed with tongues projecting in the same or opposite directions to engage corresponding slots in the other flap. Similar tongues may be formed on the outside edges of flap a. If the stirrups t are positioned slightly out of alignment, the flaps a, b, will be drawn together tightly by the strap p.