baber/WOPTO huggingface dataset:
Patent GB-949051-A (GB)
Title: Improvements relating to the removal of protective covers from jet propulsion engines of the air-breathing type
Inventor: BACON WILLIAM HENRY CHARLES
IPC: F42B15/00
Filed: 1960-07-06
Abstract: 949,051. Gas turbine jet engines; ram jet engines. BRISTOL SIDDELEY ENGINES Ltd. July 5, 1961 [July 6, 1960], No. 2356/60. Headings F1G and F1J. An air-breathing jet propulsion engine such as a ram-jet engine or a gas turbine jet engine comprises an air intake opening, a propulsion nozzle, a removable cover protecting the intake opening and closure means for the propulsion nozzle, means being provided for generating an increase in gaseous pressure in the engine so as to blow off the intake cover. The invention is described with reference to a vehicle provided with rocket motors for use in launching and with two ram-jet engines constituting the main propulsion units. Each ram-jet unit has a main air intake 21, an auxiliary air intake 29 and a propulsion nozzle 31. The ram-jet comprises an outer casing 20 and an inner member 22 defining the annular air intake 21; also primary and secondary fuel injectors 24, 25, two pyrotechnic flares 30 which are ignited electrically to initiate combustion and a nose probe 27. A protective cover 14a is secured over the intake 21, being held in place by means of resilient tongues 36 engaging with studs 37. A protective cover 14b is disposed over the auxiliary intake 29, the cover being rigidly secured to the cover 14a by connectors 35. The covers may be formed of glass fibre reinforced resin. The propulsion nozzle 31 is closed by means of a diaphragm 15 formed of rubber-like material and secured to the end of the nozzle by means of screws. A line 17 is secured to the diaphragm and is connected at its other end to a point 16 on the launcher. In operation the igniter flares 30 in the ram-jet units are first ignited and shortly after the booster rockets are ignited. During the interval between these ignitions, the pressures generated within the ram-jet units by the firing of the flares causes the covers 14a to be blown off and the auxiliary covers 14b are pulled off simultaneously. As the vehicle begins to move up the launcher, the sealing diaphragms 15 are pulled away from the nozzle outlets by means of the lines 17. In a second embodiment, Fig. 4, the main intake cover 50 is secured to a tube member 51 which is split longitudinally in three places 51a so as to provide three jaws 52 which engage in a circumferential groove 53 in the nose probe 27, the jaws being urged together by means of a helical spring 54 engaged in a helical groove 55 in the tube; the position of the spring may be adjusted so as to vary the gripping force of the jaws. A further tube 57 with a rubber end piece is disposed within the tube 51.
Patent GB-767617-A (GB)
Title: Improvements relating to the formation of acid-resistant cementitious products
Inventor: GRIFFITHS LESLIE HERBERT
IPC: C04B24/30
Filed: 1954-08-14
Abstract: A solid cementitious product is obtained by mixing cement, water and a water-soluble furane resin syrup and allowing to set. The resin syrup is hardened by adding a dilute acid before or after the cement has set.  An aggregate may also be present.  5 to 10 per cent of the resin syrup relative to the cement is used and the resin may be a partially polymerised product derived from furfuryl alcohol with or without an aldehyde e.g. formaldehyde or furfuraldehyde, as described in Specification 721,889, [Group IV(a)].  Specification 562,268 also is referred to.
Patent GB-171473-A (GB)
Title: Improvements relating to grinding and other machines
IPC: B23F23/08
Filed: 1921-05-13
Abstract: 171,473. Orcutt, H. F. I., and Gear Grinding Co., Ltd. May 13, 1921. Indexing.-A dividing-head for use in grinding or other machines, for example in gear-grinding machines, comprises a disc a secured to the work spindle b and having around its periphery notches c, in number corresponding to the wheel teeth &c., adapted to be engaged by a locking-pawl g and by a feeding-pawl d. The pawl d is carried by an arm f, which is loosely mounted on the spindle b and is oscillated by the engagement of a roller q thereon with a fork p carried by a slide b. The slide is reciprocated through a rod m by a crank n, which is moved at the correct intervals by the machine. The locking-pawl g is pivoted to the framework of the device and is pressed into the notches by a spring-pressed plunger i, the final movement being given, to locate the disc a accurately, by a bell crank lever r carrying a screw t engaged by the slide l at the end of its stroke; the pawl is lifted, on the idle stroke of the arm f, by a cam j on the arm.
Patent GB-297566-A (GB)
Title: A polish for metal and other surfaces
IPC: C11D7/60
Filed: 1927-09-09
Abstract: 297,566. Downes, H. F. Sept. 9, 1927 Metal polishes consist of Neuberg chalk, a hydrocarbon distillate such as white spirit, petrol, or that sold under the registered trade name " Glico," and brown soap oil which consists of a mixture of hydrocarbon oils and fatty oils or free fatty acids.
Patent GB-418699-A (GB)
Title: Improvements in roller skates
IPC: A63C17/02
Filed: 1933-08-28
Abstract: 418,699. Roller skates. PEARMAIN, R., 40, Chesham Road, Anerley, London. Aug. 28, 1933, No. 23822. [Class 132 (i).] A roller skate comprises a foot-plate A with front and rear undercarriages B interconnected by a rod C and having sockets H in which slide the vertical limbs of hangers G, the horizontal limbs G<1> of which form seatings J for rubber blocks K. Pins O pass through the limbs G<1> and blocks K and surrounded by spiral springs L are threaded into holes P in the undercarriages B, lock-nuts Q being provided. The blocks K and springs L are seated at their upper ends by flanged washers M threaded on the pins O. The rollers D are secured by ball bearings on hub centres E fast on pins F carried by the hangers G.
Patent GB-245522-A (GB)
Title: Improvements relating to electrical translating apparatus
IPC: H01C7/04
Filed: 1924-10-10
Abstract: 245,522. Westinghouse Brake & Saxby Signal Co., Ltd., (Union Switch & Signal Co.). Oct. 10, 1924. Addition to 199,480. Non-contact-making relays, thermal.-Several improved forms of the relay of the parent Specification are described. In Fig. 1, the inner electrode 10 is imperforate, thin and blackened on the inside. A sheet of gold leaf may be interposed between this electrode and the thermosensitive substance E. Fig. 2 shows one form in which the electrodes 10<a>, 11<a> and the heating element H are embedded in the thermo-sensitive substance E<1>. The electrodes and heating element may be intertwined, and may be coated with copper, so that upon heating, a bead of copper oxide is formed. The apparatus is such that in general the temperature of the thermosensitive substance is unaffected by the secondary current therethrough, though it may be arranged if required that the conductive condition continues when once established. Several thermosensitive units may be controlled by a single heating unit. Fig. 5 shows a holder for the relay, contacts being made with end-plugs 8, 8<a> through the holding springs.
Patent GB-190212-A (GB)
Title: Process for the continuous leaching of ores, metallurgical products and other materials on the counter-current principle
IPC: B01D11/02
Filed: 1921-09-10
Abstract: 190,212. Mond, A. L., (Metallbank und Metallurgische Ges. Akt.-Ges.). Sept. 10, 1921. Solids, treating with liquids.-Apparatus for the continuous leaching of ores, metallurgical products and other materials on the counter-current principle comprises a beam b provided with blades c rocking, preferably with an elliptical motion, over a series of communicating troughs a<1>, a<2>, in such a way that on the forward motion of the beam the blades move the ore &c. and the extracting liquid up the troughs, causing the main body of the liquid in the troughs to sink, while on the return stroke the. blades are lifted out of contact with the ore &c. and the liquid, so that the ore &c. remains stationary whilst the extracting liquid flows back, and a portion thereof rises above its normal level and overflows from one trough into the trough next behind. The motion of the beam is such that shallow depressions only are formed in the ore &c., as shown in Fig. 4, so that not much liquid is retained in these depressions at the upper part of each trough at the end of the forwardstroke of the beam, and on the return stroke the liquid overflowing from the previous trough mixes thoroughly with the liquid retained in the depressions. The ore &c. is fed to the troughs at g<1>, Fig. 1, while the extracting liquid is fed at g<2>. The rate of rocking of the beam is so chosen as to produce a regular rise and fall of the liquid in each trough.
Patent GB-1146713-A (GB)
Title: Thermionic generator
IPC: H01J45/00
Filed: 1966-05-31
Abstract: 1,146,713. Thermionic generator. UNITED STATES ATOMIC ENERGY COMMISSION. 31 May, 1966 [18 Aug., 1965], No. 24110/66. Heading H1D. A caesium-filled thermionic generator adapted to be operated without the use of liquid pools at a temperature above the condensing temperature of the caesium vapour includes a member which acts as a caesium vapour store by providing a large surface area for retaining at least ten times as many Cs atoms in the store as are present in the envelope space. As shown, the store is of the sponge type and comprises a sintered tungsten block 20 with a polished tungsten face 22 and may form at least part of the cathode 14, which is spaced from anode 16 by ring 18. The caesium stored in the pores above its condensation temperature may be liberated by heating the store to a still higher temperature, the temperature of the envelope remaining at the former temperature, e.g. 553 K., during tube operation. Because the binding energy of adsorbed Cs vapour is high (about 2 ev. at 550 K. compared with 0À75 ev. for a liquid pool type reservoir) large temperature fluctuations of the reservoir do not affect the vapour pressure which thus remains substantially unaltered. To fill the tube and store with Cs vapour, the envelope 12 and electrodes 16, 22 are raised to their operating temperatures and the tube via tubulation 24 is connected to an appendage containing a Cs pool. After equilibrium at the desired pressure, e.g. 1 torr, has been attained the tube is sealed. The store contains sufficient Cs to replenish lost Cs throughout the lifetime of the converter.
Patent GB-673108-A (GB)
Title: Improvements in and relating to measuring levels in silos, hoppers and the like containers for solid particulate material
IPC: G01F23/00
Filed: 1949-09-20
Abstract: 673,108. Electric indicating systems. TATE & LYLE, Ltd., CHRYSTAL, C. D., and GREENLAW, J. R. July 31, 1950. [Sept. 20, 1949] No. 24132/49. Class 40 (i). The level of solid particulate material in a container is measured by means of a detector which controls a servomotor to raise or lower it so that the detector normally rides on top of material. As shown, the detector comprises a dust proof chamber consisting of conical. members a, b joined by a flexible peripheral band c. The apex of cone b is similarly connected by a flexible band d to a bar h connected through a shackle to a supporting cable f. The bar h is biassed downwardly by a spring m and has rigidly secured thereto two "fixed" contacts k<SP>1</SP>, k<SP>2</SP> co-operating with a movable contact k<SP>3</SP> carried by a beam 1 pivoted to the bar h and biassed by a spring o. The beam l also co-acts with fingers n<SP>1</SP>, n<SP>2</SP>, rigid with the upper and lower cones respectively. Normally with the lower cone a resting on the material the contacts are open. Lowering of the material level causes the spring o to close contacts k<SP>2</SP>, k<SP>3</SP>. Raising the level partially buries the top cone until the weight of material thereon closes the contacts k<SP>1</SP>, k<SP>3</SP>. The contacts control a motor which through a winch raises or lowers the detector as required to bring the switch contacts to normal and indicate or record the level. Alternatively, hydraulic, pneumatic or other servo actuating means may be employed. The level is indicated by a pointer on the winch spindle or remotely by an electric transmission system controlled by a potentiometer actuated by the winch.
Patent GB-873889-A (GB)
Title: Esters of vitamin a
IPC: C07C403/00
Filed: 1959-07-14
Abstract: A mixture of Vitamin A esters is prepared by reacting Vitamin A alcohol with an edible oil (or fat) and/or an ester of a fatty acid containing up to 22 carbon atoms in presence of an alkaline catalyst, which may be, e.g., a compound of an alkali or alkaline earth metal such as NaOH, KOH, LiOH, Ba(OH)2, Ca(OH)2, BaO, NaOMe, LiOMe, KOEt, Ba(OMe)2, Ca(OMe)2 or Mg(O-i-Pr)2, or an alkali metal such as Na-K alloy. Specified oils and fats are corn, peanut, cottonseed, pumpkinseed, rapeseed, sesame and menhaden oils, as well as beef and lamb fats.  It is preferred to purify the reaction product by extraction with a lower alkanol and to stabilize the product by addition of an alkylated phenol such as 2- or 3-t-butyl-4-hydroxyanisole, 2:6-di-t-butyl-4-methylphenol, 2:21-methylene-bis-(4-methyl-6-t-butylphenol), t-butyl-m-cresol and 2:5-di-t-butylhydroquinone.  Aqueous dispersions of the mixture of esters may be prepared using, e.g., polyoxyethylated partial esters of hexitol anhydrides and fatty acids such as lauric, palmitic, stearic and oleic.ALSO:A mixture of Vitamin A esters is prepared by reacting Vitamin A alcohol with an edible oil (or fat) and/or an ester of a fatty acid containing up to 22 carbon atoms in presence of an alkaline catalyst, which may be, e.g. a compound of an alkali or alkaline earth metal such as NaOH, KOH, LiOH, Ba(OH)2, Ca(OH)2, BaO, NaOMe, LiOMe, KOEt, Ba(OMe)2, Ca(OMe)2 or Mg(O-i-Pr)2, or an alkali metal such as Na-K alloy. Specified oils and fats are corn, peanut, cottonseed, pumpkinseed, rapeseed, sesame and menhader oils, as well as beef and lamb fats. It is preferred to purify the reaction product by extraction with a lower alkanol and to stabilize the product by addition of an alkylated phenol such as 2- or 3-t-butyl-4-hydroxyanisole, 2 : 6 - di - t - butyl - 4 - methylphenol, 2 : 21 - methylene - bis - (4 - methyl - 6 - t - butylphenol), t - butyl - m - cresol and 2 : 5 - di - t - butylhydroquinone.  Aqueous dispersions of the mixture of esters may be prepared using, e.g. polyoxyethylated partial esters of hexitol anhydrides and fatty acids such as lauric, palmitic, stearic and oleic.
Patent GB-713166-A (GB)
Title: Electric generating plant
IPC: H02J3/38
Filed: 1950-10-03
Abstract: 713,166. Self-contained supply systems with fixed speed generators. PETERS, J. A. BIRD, R. C., and PUTTICK, H. G. Jan. 3, 1952 [Oct. 3, 1950], No. 24184/50. Class 38(4) In a so-called country-house electricgenerating installation such as is disclosed in Specification 695,288 wherein the generator is brought into operation only when power is required to be supplied, all the elements of the automatic controlling apparatus, except the prime mover starting and stopping solenoids 5, 6 and the source of direct current 24v, are mounted as a unit on a panel 2 or the like to which the connections from the rest of the installation are made by a two-part coupling 3, 4, and there are provided manually operable alternative means for closing the solenoid circuits and for connecting the generator 1 to the load circuit, so that the installation may be manually controlled after breaking the two-part coupling should any part of the control apparatus in the unit fail. As shown, the manually operable mean comprise self-restoring push-button switches, S 1 , S 2  and a switch M respectively.
Patent GB-376537-A (GB)
Title: Improvements relating to venting apparatus for beer barrels
IPC: C12L9/00
Filed: 1931-08-28
Abstract: 376,537. Venting beer barrels. AULD, J., 74, Purdon Street, Partick, Glasgow. Aug. 28, 1931, No. 24206. [Class 21.] Venting apparatus in beer barrels of the type including a valve housing 1 provided with an extension 2 screwing into the barrel 7 having a valve 3 permitting the flow of gases to an outlet 8 containing a porous vent peg 5, a vessel 4 being also carried by the housing to receive beer passing through the vent peg which escapes by a branch 6 which may be connected by a flexible pipe to a storage vessel, has the outlet branch of the valve housing 1 externally screw-threaded to engage an internally screw threaded boss 7 on the vessel 4.
Patent GB-285067-A (GB)
Title: Improvements in gas-heating burners
IPC: F23D14/64
Filed: 1927-09-14
Abstract: 285,067. Scott, A. A., Scott, E. H., and Scott, P. R., (trading as New Scott Range Manufacturing Co.). Feb. 11, 1927, [Convention date]. Atmospheric gas burners; burners, mounting. -The burner comprises larger and smaller mixing-tubes 1, 2 communicating respectively through chambers 7, 13 with upper and lower rings of burner orifices constituting the main and auxiliary burners. The smaller orifices may be formed by V-shaped notches 19 cast or cut in the flange 14 resting on the upper end of the chamber 7. the larger orifices being formed between projections 18 in the flange and the cap 21, or the orifices may be formed in the upper end of the chamber 7 and in the underside of the cap. One or more layers of wine gauze or the like may be provided in the chamber 13 to prevent backfiring. The air-inlet or inlets of the mixing-tube 1 may be controlled by a hit-and-miss regulator. The mixing-tube 1 and chamber 7 are cast integral with an extension 26 adapted to support the burner on a gas-stove.
Patent GB-1308623-A (GB)
Title: Method of ignition and combustion of combustable liquids
IPC: E02B15/10
Filed: 1970-05-20
Abstract: 1308623 Burning waste oil PITTSBURG CORNING CORP 20 May 1970 [2 June 1969] 24457/70 Heading F4B [Also in Division C1] Fuel oil in pot-like furnaces is ignited by floating on the surface a number of cellular glass nodules, and igniting the oil which rides to the top of the nodules by surface torsion. Ignition may be assisted by applying a volatile fuel. The glass nodules are preferably substantially spherical, <SP>1</SP>/ 32  to ¢ inch in diameter, preferably  inch, and may have the glazed surface removed, e.g. by agitating in a ball mill, to expose the cellular structure and improve transference of the e fuel oil to the upper surfaces of the nodules.
Patent GB-383340-A (GB)
Title: Improvements in and relating to colliery chocks and the like
IPC: E21D15/60
Filed: 1932-05-28
Abstract: 383,340. Wedges. RITCHIE, D. M., Nursery Hall, Whitletts, Ayrshire. May 28, 1932, No. 24479. [Class 89 (ii).] Mine chocks of the type having a central member with inclined planes and wedge members coacting therewith, have the inclined planes so disposed that the wedge members on release slide downwardly and inwardly. The wedge members c, Figs. 1 and 4, are held in expanded positions on the members b of the central member by means of bars h which are rotatable on pivots g to release the chock. Alternatively, the blocks c may be held by transversely adjustable locking bars j having slotted fins j<1>, Figs. 9 and 10, which engage recesses in the side bars d, axial movement of the locking bars causing the slots in the fins to register with the side bars so that they may then slide axially of the side bars and release the chock. In a further form, the blocks may be held apart by keyed projections on a rod adapted on axial rotation of the rod to enter slots in the wedge members ; or transverse members n, Fig. 20, in grooves in the side members d acting as stops may be released by interacting wedge members d, o which cause upward movement of an unlocking member o beneath the stops. The wedge surfaces may be formed in steps to allow of a greater range of adjustment.
Patent GB-701336-A (GB)
Title: Improvements in sieving or purifying machines for flour mill stocks
Inventor: LOCKWOOD JOSEPH FLAWITH
IPC: B02B1/02
Filed: 1951-10-22
Abstract: 701,336. Sifting-apparatus. SIMON, Ltd., H. Oct. 16. 1952 [Oct. 22, 1951], No. 24553/51. Class 117. In a duplex purifying machine for flour mill stocks in which the stock is passed along sieves a which are vibrated, each sieve is provided with a hood comprising a short vertical wall c, a roof d which slopes upward at an angle of not more than 25 degrees to the horizontal. and an inner wall e which also forms a wall of the common exhaustion duct b and is provided with spaced apertures f controlled by slide valves g operated by handles h. Each roof d is made of transparent material. Tins i disposed across the tops of the sieves a collect the heavier materials lifted by the air currents, the gap between adjacent tins decreasing in width from the outer side of the machine towards the central common exhaustion duct to obtain a uniform rate of air flow over the full width of the sieves. The bottom k of the duct b is made separate therefrom and is vibrated to convey light particles deposited in the trunk to a discharge outlet.
Patent GB-821682-A (GB)
Title: Improvements in cabling machines
Inventor: MACKIE JOHN PRINGLE
IPC: D07B3/08
Filed: 1955-08-26
Abstract: 821,682. Cabling machines. MACKIE & SONS Ltd., J. Aug. 20, 1956 [Aug. 26, 1955], No. 24606/55. Class 120(2) [Also in Group XXV] In a vertical cabling machine having take-up and let-off flyers 42, 6, which rotate about vertical axes, the let-off yarns passing through a die 31 under the pull of haul-pulleys 34, 35, the axes of which rotate around the axis of the flyer 42, the supports for the let-off bobbins 3 are so located that the lower edges of the bobbins 3 lie above the lower edges of the take-up bobbin 4 and beneath the haulpulleys 34, 35. As shown, the let-off bobbins 3 are arranged on either side of a take-up bobbin 4. Each bobbin 3 has a letoff flyer 6 which rotates with a spindle 9. Yarn from a bobbin 3 passes through a guide-eye 16 in the spindle 9, being deflected through substantially constant angles A and B, whatever the position of the flyer 6. It then passes over a curved conductor 25 which is pivoted to the frame,. spring-loaded, and held down by the tension in the yarn against a small plunger  stop switch 27 'which constitutes themachine stop mechanism. The swival yarns then pass through a tubular die 31, being pulled by haul pulley 34, 35 which rotate about their own axes and about the axis of driving pulley 38. A take-up flyer 42 winds the finished twine on to the bobbin 4. Four yarns may be furnished by four bobbins 3, passing over four conductors 25 to one die 31.
Patent GB-246381-A (GB)
Abstract: 246,381. Wattecamps, L. G. F. A. July 3, 1925. Adhesives -A liquid paste for paper, cardboard &c., comprises rice-starch, zinc and sodium chlorides and water, with or without the chlorides of ammonium, manganese' and calcium, potatostarch, and dextrin. In an example the chlorides of sodium, zinc, calcium, and ammonium are mixed with water, and a mixture of rice-starch, potato-starch and dextrin is added. The mass thickens, and is then cut into lumps and dissolved in water. Manganese chloride is added and the whole filtered.