baber/WOPTO huggingface dataset:
Patent GB-864665-A (GB)
Title: Improvements in or relating to specific gravity meters
Inventor: SMITH IAN JAMES
IPC: G01N9/26
Filed: 1959-02-16
Abstract: 864,665. Specific gravity meters. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 22, 1960 [Feb. 16, 1959], No. 5279/59. Class 97(3) A meter for measuring the specific gravity of radioactive liquids, comprises a closed vessel 15 having two tubes 11, 12, dipping therein to differing levels, with a manometer 10 connected between the tubes, a liquid inlet 17 at the base and an evacuation port 16 at the top of the vessel 15 and means for applying a vacuum to the port 16. On lowering the vessel 15 so that inlet 17 is beneath the level of liquid in a container, evacuation is started through port 16 and liquid rises in the vessel until the lower free end of tube 11 is reached. The difference in pressure in tubes 11, 12 as measured by manometer 10 is related to the specific gravity of the liquid. If evacuation is continued too far, the liquid contacts a probe 18 which completes an alarm circuit.
Patent GB-574764-A (GB)
Title: Improvements in or relating to aircraft pick-up systems
IPC: B64D1/22
Filed: 1942-12-28
Abstract: 574,764. Transferring articles to aircraft in motion. ALL AMERICAN AVIATION, Inc. Dec. 28, 1942, No. 5298/44. Convention date, Dec. 22, 1941. Divided out of 574,741. Drawings to Specification. [Class 103 (iii)] The subject-matter of this Specification relating to a pick-up arm and hook for use on an aeroplane in Bight to pick up burdens, is completely described in Specification 574,741.
Patent GB-558850-A (GB)
Title: Improvements in or relating to methods of and apparatus for loading and unloading wheeled vehicles
IPC: B65G65/28
Filed: 1942-04-21
Abstract: 558,850. Loading and unloading vehicles. BRITISH ROPEWAY ENGINEERING CO., Ltd., and SHIELDS, H. F. H. April 21, 1942, No. 5364. [Classes 78 (iii) and 78 (iv)] Apparatus for unloading vehicles, preferably of the bottom discharge type, comprises a main frame 10 arranged to travel along a ground track 26 and to accommodate a loaded wheeled vehicle 42, and lifting means mounted on the main frame and adapted to move the loaded vehicle bodily laterally to a position at one side of the ground track where it can be unloaded to form a heap 64. The apparatus may also be used to load vehicles in the frame 10 by means of a drag scraper (not shown) and an adjustable ramp 90 pivoted at 92 as described in Specification 558,451. In the construction shown the frame 10 is provided with wheels 22, 24 running on the track 26 and carries a raised track 34 connected by hinged end ramps or rails 30, 32 with the rails 26 so that wagons such as 42 can be run from the main track on and off the frame. When a wagon is in the central position in the frame its wheels 44 rest on a short length of track 36 in alignment with the track 34, this track 36 being carried by a portable cage 46 suspended by hangers 52 and rollers 56 from a fixed runway 60, 62 carried by the frame 10. Ropes 76,78, pass from winch drums 66, 68 over pulleys 82, 86 to the hangers 52, so that when the drums are driven by a motor 70 the cage and wagon are hauled along the runways to the position shown in broken lines in which the wagon load may be discharged on to the heap 64 by means of a bottom door on the wagon. The cage is provided with a plate 88 to deflect material away from the track 26. Specification 558,181 also is referred to.
Patent GB-870328-A (GB)
Title: Improvements in and relating to fluorine compounds
Inventor: TULLOCK CHARLES WILLIAM
IPC: C08K5/23
Filed: 1960-02-16
Abstract: Fluorine-containing polymers, e.g. low molecular weight polytetrafluoroethylene (m.p. 83 DEG -150 DEG C.) dissolve in liquid compounds of the formula XRCF2-N=N-CF2RX or XRCF= N (hall), where X is hydrogen or fluorine, R is a divalent aliphatic perfluorocarbon radical, and hal is chlorine or bromine (see Group IV(b)).  On cooling, such solutions form reversible gels or pastes, which can be used as "pipe dopes" or lubricating seals on valves and threaded pipes.  The polyfluoroazoalkanes above are useful as polymerization initiators, e.g. for fluoro-olefines such as C2F4 and C3F6, either at elevated temperature e.g. 175 DEG -250 DEG C. or at low temperature (e.g. 25 DEG C.) with the assistance of ultra-violet light.ALSO:The invention comprises compounds of the formulae: XRCF2-N=N-CF2RX, XRCF2-N(hal)2 and XRCF=N(hal), where X is hydrogen or fluorine, R is a divalent perfluorocarbon aliphatic radical, and hal is bromine or chlorine, and their preparation by reacting a compound XRCN with chlorine or bromine and a fluoride of sodium, potassium, rubidium, caesium, copper, silver, mercury or lead at 25-250 DEG C. under essentially anhydrous conditions.  When the molar ratio of metal fluoride to XRCN is 4:1 or higher, the main product is the azo polyfluoroalkane of the first formula given; at lower ratios, e.g. 1:1 or less, the proportion of N-halo-fluoroalkylideneimine in the reaction product is increased.  The halogen is preferably used in a molar ratio to XRCN of 0,5:1 to 2,5:1; the formation of N,N-dihalo-fluoroalkylamines is increased in the higher portions of this range, e.g. 1,5:1 to 2,5:1, and when a more reactive fluoride, e.g. of Cs or Hg, is used with chlorine as the halogen; particularly at 50-100 DEG C., but not above 150 DEG C.  Lists of starting materials and products are given.  The perfluoroazoalkanes FRCF2N=NCF2RF can be pyrolysed to the perfluoroalkanes FRCF2CF2RF and sometimes the hydrazines, e.g. (C2F5)2N.N(C2 F5)2 and C4F10 from C2F5N=NC2F5.  The N,N-dihalofluoroalkylamines R1NCl2 react with perfluoroalkenes to give adducts, e.g. with C2F4 to give R1N[(C2F4)nCl]2 where n is 1 or more. The N-halo and N,N-dihalo compounds of the invention are toxic to lower forms of life.  The polyfluoroazoalkanes react with chlorine or bromine to give compounds XRCl or XRBr.
Patent GB-563980-A (GB)
Title: Improvements relating to electrically heated kilns
IPC: F27B9/06
Filed: 1943-04-06
Abstract: 563,980. Electrically heated kilns. BRITISH BROWN-BOVERI, Ltd., and OSWALD, H. April 6, 1943, No. 5493. [Class 39 (iii)] A truck a for carrying articles to be heated in a tunnel kiln b has a refractory deck c above which is mounted a heater assembly d and below which is mounted controlling switch gear e and current collectors f, f taking current from stationary conductors g, h. Conductors g are continuous and carry the heating current, and conductors hare discontinuous at and carry the controlling current to the switch gear. The latter comprises electrically operated contactors k controlling sections of the heaters, connected to a controller q. The latter comprises a pyrometer r connected to a temperature indicator t having a link u co-operating with contacts x, y whereby one phase may be rendered inoperative, or power entirely disconnected. An auto-transformer, Fig. 2, may be inserted at 3, whereby, without breaking the continuity of the conductors g, the applied voltage on a section of the kiln may be reduced. Separate trucks may be used for the electrical equipment and the articles to be heated, or trucks may carry both, and the heaters may be arranged as in Specification 563,979. Specification 486,465 also is referred to.
Patent GB-554403-A (GB)
Title: Improvements in and relating to weighting mechanism for the drawing rollers of combing machines and other machines for the treatment of textile fibres
IPC: D01H5/48
Filed: 1942-04-24
Abstract: 554,403. Weighting arrangements. PLATT BROS., & CO., Ltd., and PIERREPONT, D. April 24, 1942, No. 5525. [Class 120 (ii)] Weighting mechanism for the top rollers of the drawing head of a combing or other machine comprises individual weights 22 threaded onto hooks 23 suspended from the top rollers, a bridge-piece 21 passing through apertures in the weights and movable up and down in brackets 15, 16 secured to the frame of the machine, a shaft 14 journalled in the brackets parallel to the bridge-piece, a lobed cam 17 fixed to the shaft and having at least one lobe 19 higher than the other or others 18 and a handle 26 on the shaft and a finger or bolt 27 pivoted on the handle and projecting through a guide bracket 28 in proximity to the setting rod 29 which is provided with a notch 29a. While the machine is running the rod 29 prevents movement of the bolt 27 and cam so that the weighting cannot be released but when the machine is stopped the notch in the setting-on rod 29 is in line with the bolt 27 and the handle 26 can be rotated to move the cam so that the lobe 18 engages and moves the bridge-piece upwards to lift all the weights simultaneously; this movement of the handle is slight, the bolt 27 engaging the notch in the setting- on rod and preventing the machine being started until the rollers are again weighted. If it is desired to remove one or more of the top rollers for cleaning &c. the handle is given a further movement so that the high lobe 19 engages the bridge-piece and the weight hooks are lifted clear of the arbors of the top rollers; undesirable downward movement of the hooks 23 is prevented by the bottom ends of the hooks engaging shoulders 22d of recesses 226 in the weights. The cam may have a second lobe 18 so that it can be rotated either right or left hand and stops on the cam shaft co-operated with stops on the bracket 15 to limit forward movement of the handle.
Patent GB-288955-A (GB)
Title: Improvements in apparatus for attaching the heads of sheet metal drums and the like
IPC: B21D51/32
Filed: 1927-01-06
Abstract: 288,955. Rhodes, C. J. Jan. 6, 1927. Divided on 288,684. Drawings to Specification. Seaming.-Comprises the means, described in Specification 288,684, for supporting the rollers which act against inward thrust during the flanging operation. Specification 266,419 also is referred to.
Patent GB-130918-A (GB)
Title: Improvements in and relating to Fruit Pickers.
Inventor: HOEBER SIETZE
IPC: A01D46/247
Filed: 1919-03-06
Abstract: 130,918. Hoeber, S. March 6, 1919. Reachers and long-arms. - An appliance for picking fruit comprises a forked piece 8<a> hinged at the upper end of the staff 1, a slotted shoot 10 forming an extension of the forked piece beyond the hinge, means for fixing the fork and shoot at selected angles for different kinds of fruit, and a flexible conveyer tube provided at its lower end with flexible and resilient baffles 6. The tube comprises a reinforced fabric funnel 3 and detachable cloth sections 4, 5 secured together by snaps. buttons, &c. The inclined baffles 6 are made of flexible fabric and are each provided with an elastic band 7 tending to contract the opening between the baffle and the tube. The forked piece 8<a> is connected to a forked support 2 by a hinge pin 9<c>, and is fixed in either of the positions shown by a removable pin 9. When in the inclined position indicated, the shoot 10 directs small fruits into the funnel 3.
Patent GB-486230-A (GB)
Title: Improvements in bust supports or brassieres
IPC: A41C3/00
Filed: 1937-02-24
Abstract: 486,230. Brassieres. KLIN, R. L. Feb. 24, 1937, No. 5561. [Class 141] A brassiere of the kind having a pair of overlapping triangular breast supports is characterized in that each breast support is formed of a double thickness of net or lace-like material, and comprises three functional parts, a central triangular part A which in wear will be located between and below the breasts, a shaped part B of flat conical form adapted to enclose and support the breast, and a separate outer triangular part C secured to the part B. The parts A and B are formed either integrally or separately. Each part of the breast support is made preferably of material which is less stretchable in one direction than in any other direction, and the direction of least extensibility is arranged to lie at approximately 45‹ to the lower edge of each breast support. The outer and inner extremities of the breast supports are connected together by lateral body straps F, and shoulder straps E connect together the upper and outer extremities of the breast supports.
Patent GB-281906-A (GB)
Title: Improvements in semi-rotary pumps
IPC: F04C9/00
Filed: 1927-02-28
Abstract: 281,906. Martin, E. C., Pulsford, F. C., and Ashwell &. Nesbit, Ltd. Feb. 28, 1927. Fixed-abutment type.-A semi-rotary pump having flap valves f<1>, f<2> in the oscillating vane d is provided with a readily removable inlet valve box g of segmental form which is fitted with mushroom type inlet valves h<1>, h<2>. The inlet valves h<1>, h<2> and their seatings are preferably of spherical form and the valve stems i are guided in arms k secured to the valve box. The valve box is located by a pin l in the casing and is provided with felt packing m where the partition contacts with the vane spindle.
Patent GB-689353-A (GB)
Title: Improvements in centrifugal compressors
IPC: F04D17/12
Filed: 1951-03-08
Abstract: 689,353. Centrifugal compressors; gas turbine and jet propulsion plant. LYSHOLM, A. March 8, 1951 [March 9, 1950], No. 5668 /51. Classes 110(i) and 110(iii) In a centrifugal compressor, guide vanes ahead of the impeller are shaped so as to impart to the fluid a prewhirl which decreases as the radius decreases, and the outlet edges of the impeller slant towards the axis of rotation of the compressor, so that an increase of head is obtained at the tips of the outlet edges which counteracts the decrease of head due to the prewhirl at the inlet edges. In the jet propulsion plant shown in Fig. 1, the inlet guide vanes 16 are twisted so that the outlet angle is less at the roots than at the tips, so as to impart to the air entering the impeller 10 a prewhirl which decreases as the radius decreases. The impeller 10 and the low-pressure turbine rotor 15 are mounted on a shaft 12, and the high-pressure impeller 11 and the high-pressure turbine rotor 14 are mounted on a shaft 13 the speed of which is preferably onethird greater than that of shaft 12. Most of the compressed air enters a combustion chamber 28 at 30 and 31, adjacent the fuel injection pipe 29, the remainder being supplied for cooling purposes at 32 and 33. Guide vanes 25 may be adjustable. Fig. 4 shows an embodiment in which the outlet angle of the inlet guide vanes 43 decreases to such an extent that it is negative at the roots. To reduce the pressure difference between the root and tip of the outlet edge 44, each impeller blade 42 is shaped to impart to the air a counter-rotation which increases as the radius decreases. Auxiliaries, such as fuel pump, starting motor and controlling devices, may be housed in an annular space 50 and driven through gearing 51 and a shaft 52. Both compressor stages may be driven by a single turbine rotor.
Patent GB-674879-A (GB)
Title: Improvements in or relating to the production of cellulose and organic derivatives of cellulose
Inventor: HAWKES JOHN ARTHUR
IPC: C08B1/06
Filed: 1949-03-02
Abstract: Cotton is purified and rendered particularly suitable for the production of cellulose acetate and other cellulose derivatives, by subjecting it, in any order, to a treatment with a weak aqueous caustic alkali solution of a concentration of 2-5 per cent at a temperature of 120-180 DEG  C. under pressure, a treatment with a strong aqueous caustic alkali solution of concentration 15-25 per cent at a temperature at least 5 DEG  C. above but not more than 30 DEG  C. above the highest temperature at which the solution is capable of completely mercerizing cotton, and a bleaching treatment. Cellulose derivatives obtained from the treated cotton show less tendency to discoloration on moulding than those obtained from cotton which has not been treated in this manner.  Preferably, the treatment with the more dilute alkali is first given and is followed by the bleach and then by the more concentrated alkali treatment.  The bleach may be effected with chlorine, sodium chlorite, or sodium or calcium hypochlorite.  The maximum temperature at which complete mercerization is possible for a given caustic soda concentration is given by reference to a graph. For a 15 per cent caustic soda solution the temperature employed (5-30 DEG  C. above the maximum for complete mercerization) is 32-57 DEG  C.; for a 20 per cent solution the temperature is 45-70 DEG  C.; and for a 25 per cent solution the temperature is 53-78 DEG  C. The treatment may be effected by immersion or spraying and it may take 15 minutes to 5 hours.  A wetting agent may be included in the caustic alkali solution.  Oxygen may be excluded by carrying out the treatment in an atmosphere of nitrogen or by evacuating the air from the treatment vat before the alkali solution is run in.  For washing out the alkali after the treatment there may be used distilled or demineralized water, and if desired, the water may be removed by washing with aceton or by exposure to a current of warm dry air.  The treated cotton may be acetylated preferably after a pretreatment with glacial acetic acid with or without a small proportion of acetylation catalyst such as sulphuric or perchloric acid.  Other cellulose esters or ethers may also be obtained.  Specifications 538,913, 539,804, 568,047, 568,098, 571,010, 574,106, 577,963, 597,295, 608,310, 609,790, 620,726, 620,982, 627,861, 630,388, 635,668, 637,342, 637,650, 638,316, 640,075, 655,534 and 657,827 are referred to.
Patent GB-920117-A (GB)
Title: Bis (n.n-dialkylamido) chloro-phenyl and -thiophenyl phosphates
IPC: C07F9/24
Filed: 1959-02-20
Abstract: The invention comprises compounds of the general formula <FORM:0920117/IV(a)/1> in which X is an oxygen or sulphur atom, R1, R2, R3 and R4 each represent a C1-C5 alkyl group, and n is 3, 4, or 5 if X is an oxygen atom and n is 1, 2, 3, 4, or 5 if X is a sulphur atom.  They may be obtained by reacting phosphorus oxychloride with an appropriate phenol or thiophenol or with an appropriate phenolate or thiophenolate and reacting the product with an appropriate secondary amine but are preferably obtained by reacting a compound of the formula <FORM:0920117/IV(a)/2> with a compound of the formula <FORM:0920117/IV(a)/3> in which X, R1 to R4, and n are as defined above and Me is an alkali metal, e.g. sodium.  The reaction is preferably carried out in the presence of benzene, acetonitrile, or acetone as diluent and when penta-chloro derivatives are prepared any non-converted penta-chloro phenol or penta-chloro thiophenol may be removed from the reaction product by treatment of the latter with an excess of dilute caustic soda or caustic potash solution, the reaction product being preferably first dissolved in a water-immiscible solvent.  Examples are given for the production of bis(N,N-dimethylamido) pentachloro (and 2,4,6-trichloro) phenyl phosphates, and bis(N,N-dimethylamido)-4-chloro (2,5-dichloro, 2,4,6-trichloro, 2,4,5-trichloro, 2,4-dichloro, and pentachloro)phenyl thiolophosphates respectively.  The products have insecticidal properties and are also effective against moulds p  (see Group VI).  Specification 673,877 is referred to.ALSO:A composition for combating moulds, particularly mildew on plants, comprises as active ingredient a compound of the general formula <FORM:0920117/VI/1> in which X is an oxygen or sulphur atom, R1, R2, R3 and R4 are C1-C5 alkyl groups especially methyl groups, an n is 3, 4, or 5 if X is an oxygen atom and n is 1, 2, 3, 4 or 5 if X is a sulphur atom (see Group IV (b)), said compound being mixed with an inert, solid or fluid carrier material, and, if desired, surface active substances, dispersion agents and/or adhesives.  Suitable solvents for preparing water-miscible oil emulsions are xylene, toluene, dioxane, petroleum distillates, e.g. solvent naphtha, distilled tar oil, tetralin, cyclohexane, and mixtures thereof. Specified solid carriers include pipe clay, diatomaceous earth, attapulgite, kieselguhr, dolomite, wood pulp, tobacco dust, and ground coconut shell and the composition may be in the form of a wettable powder or dust.  The active ingredients also have insecticidal properties.  Specification 673,877 is referred to.
Patent GB-1213481-A (GB)
Title: Variable speed gear
Inventor: BROWN EDWIN ROY
IPC: F16H9/16
Filed: 1967-02-08
Abstract: 1,213,481. Expanding-wheel gear. FLEXTOL Ltd. 8 Feb., 1968 [8 Feb., 1967], No. 6948/67. Heading F2D. In a variable speed drive in which a V-belt 13 transmits motion between a pair of pulleys comprising pairs of frusto-conical plates 10, 11 and 33, 34 respectively movable axially relatively to each other, plate 34 is moved by a thrust member 38 engaged by a thread 25 on a shaft 14 rotatable coaxially with the pulley axis means being provided for pre-setting the position of the thrust member with respect to the plate so that the speed ratio corresponds to that indicated on a hand wheel 16 for rotating the shaft. As shown, plates 33, 34 form a driven pulley and are rotatable on an extension 26 on one end of the shaft 14. The other end is journalled in the housing 1 and carries the hand wheel 16 which is lockable by a lever 19. A stud 40 prevents rotation of the thrust member and also serves as the pre-setting means by engaging selected holes 43, 41 in the housing and thrust member. Two sets of angularly-spaced holes 43, 41 may be provided, one set having a different hole-spacing from the other. Plates 10, 11 are keyed to the drive shaft of motor 3 and are urged together by a spring 12. In another embodiment, Fig. 4 (not shown), plates 33, 34 form the drive pulley and are keyed and splined respectively to the drive shaft 4. The shaft 14 has an extension surrounding the end of shaft 4 and externally threaded for engagement with the thrust member 38.
Patent GB-881196-A (GB)
Title: Improvements in road vehicles
Inventor: CHAPLIN WILLIAM DAVID
IPC: B60G5/04
Filed: 1958-02-24
Abstract: 881,196. Road vehicle pneumatic spring suspensions. CRANES (DEREHAM) Ltd. Feb. 24, 1958, No. 5963/58. Class 108(2). At vehicle suspension comprises, at each side of the vehicle, trailing arms 2, 6 which are pivoted to the vehicle at 2a, 6a and carry stub axles 7, 7a, beams 9 and 11 rigidly secured to arms 2 and 6 respectively, and an air spring 13 secured between the free ends of the beams. The air springs are provided with valves (not shown) which automatically vary the pressures in the springs in proportion to the load which they have to withstand. Rubber blocks are provided inside the springs to protect the suspension in the event of the air spring not operating correctly. Supplementary hydraulic shock absorbers 15 may be provided to assist the air springs.
Patent GB-221432-A (GB)
Title: Improvements in solid fuel
IPC: C10L5/38
Filed: 1924-03-11
Abstract: 221,432. Rice, G. E. March 11, 1924. Drawings to Specification. Composition fuel blocks consist of a core composed of coal dust and Kentish chalk made into a paste with boiling sea water, moulded and allowed to set, an inner covering composed of Kentish chalk and sea water, and an outer covering of coal dust, Kentish chalk, a crude petroleum jelly, and sea water. Holes are drilled into the inner covering before the outer covering is applied so that the material of the outer covering may penetrate in places to the core.
Patent GB-230484-A (GB)
Title: Device for indicating the explosiveness and explosion pressure of motor oils and fuels
IPC: G01N25/50
Filed: 1925-03-07
Abstract: 230,484. Jentzsch, H. March 7, 1925. Testing flash point.-The explosiveness of and the pressure produced by the explosion of motor fuels and oils are indicated by placing a measured quantity of the oil in an explosion chamber C in a block 5, and injecting clean and dried air or oxygen periodically through a pipe B while the block is heated by an electric or gas oven 4 until self-ignition occurs. The movement of the pressure receiver 2 is communicated by an arm 12 to a pivoted pointer 9. The temperature of the block is shown by a thermometer 6. In a modified apparatus the spring 13 presses directly downwards on the pressure receiver.