baber/WOPTO huggingface dataset:
Patent GB-1500903-A (GB)
Title: Phosphors and their preparation
IPC: C09K11/80
Filed: 1977-08-30
Abstract: 1500903 Luminescent materials and uses thereof THORN ELECTRICAL INDUSTRIES Ltd 17 Jan 1975 [17 Jan 1974] 35160/77 Divided out of 1500902 Heading C4S A method of making a hexagonal #-alumina structured Mg, Zn and/or Li aluminate phosphor activated by Ce and Tb comprises preparing a mix of aluminium ammonium sulphate and the oxides of the other constituent metals, or compounds which thermally decompose to such oxides and volatile components, and heating to > 1200 C. The preparation produces a finely divided phosphor and eliminates deleterious milling. Detailed examples are included specifying two firings at 1450 C. or above in air, for example, reheating at 1000-1100 C. in hydrogen improving the fluorescence intensity. Alternatively there may be three firings in air at 1050 C., and twice at 1500 C., followed by heating at 1050 C. in a slow stream of hydrogen. Proportions may be 0À01:1 to 0À5:1 for (Mg and/or Zn):Al; 0À001:1 to 0À1:1 for Ce:Al; and 0À005:1 to 0À25:1 for Tb:Al. A preferred phosphor is Fluorescent and Hg lamps are mentioned and phosphor particle sizes of 3 to 30 microns.
Patent GB-1017682-A (GB)
Title: Improvements in xerography
IPC: G03G15/04
Filed: 1962-06-12
Abstract: 1,017,682. Electrophotographic processes. RANK XEROX Ltd. June 12,1962 [June 12, 1961], No. 36254/65. Divided out of 1,017,681. Heading G2H. A method of forming a zerographic reproduction of a pattern of light and shadow comprises forming on a xerographic plate a half-tone image charge pattern and electrostatically depositing finely divided toner particles of opposite polarity on the charge pattern, whereby particles of one polarity deposit on charged image areas and the particles of the other polarity deposits in areas immediately adjacent thereto. A suitable developer composition including toner particles of opposite polarity is described in Specification 1,017,681. A half-tone charge pattern may be produced as described in Specification 1,017,683, Fig. 2, 3, and 4 (all not shown) represent the charge pattern and development with toners of opposite polarity using a coarse, fine and very fine half-tone pattern respectively. A charged plate 10, Fig. 5A, is exposed through a half-tone screen 20 to uniform illumination, thereby producing a charge density pattern, Fig. 5B, on the surface of the plate 10. The plate is then exposed to a light pattern, e.g. a step wedge 21 Fig. 5C (not shown), whereby a charge density pattern Fig. 5D (not shown) is produced. Which upon upon development is a positive-positive reproduction. If desired, the exposure to a light pattern may precede exposure through the half-tone screen. In a modified method negative-positive reproduction, Fig. 6, the half-tone screen 20 is placed above the step wedge transparency 21 and a single exposure is made. Toners of contrasting colour may be used for development. Instead of using a half-tone screen, a xerographic plate having non-photo-sensitive areas may be used. For example, a plate may be formed by printing a pattern of insulating plastic on top of a photoconductive layer. The developed image may be electrostatically transferred to a sheet 17, Fig. 1D, of paper by recharging the deposited toner particles to a single polarity and by reversing the polarity of power supply 14 so effecting transfer to the sheet 17. Alternatively, transfer may be effected by an adhesive method. The transferred image is fixed in each case after transfer.
Patent GB-1202225-A (GB)
Title: Improvements in and relating to valve assemblies for telescopic hydraulic shock absorbers
Inventor: DICKINSON RONALD SIDNEY
IPC: F16F9/34
Filed: 1967-08-08
Abstract: 1,202,225. Valves; hydraulic shock absorbers. ARMSTRONG PATENTS CO. Ltd. 8 Aug., 1967, No. 36301/67. Headings F2S and F2V. A foot valve assembly for an hydraulic shock absorber comprises a body 26 having a spigot 24 whereby it can be plugged into the end of an inner piston-containing cylinder (10) of the absorber, and an annular cup-shaped member 52 which is retained to the body, through an inturned flange at one end, by the loading spring 47 of a valve 46. An out-turned flange 54 at the other end of the member 52 retains a biasing spring 43 of a second valve 42. The second valve comprises a plate which allows filling of the inner cylinder, through passages 40 and spaces 28 formed between castellations 26 of the body, from an annular chamber enclosed by an outer cylinder (12). The first valve relieves pressure in the inner cylinder upon abrupt inward movements of the piston, and comprises a blind sleeve 25 ported at 48 and having a head 46 which engages a seating 36. In an alternative embodiment, the loading spring 47 is replaced by a spring on the opposite side of the body and the cup member is retained by the head of a stem which extends through the body and locates a spring retainer at its other end.
Patent GB-619434-A (GB)
Title: Improvements relating to guttering
IPC: E04D13/064
Filed: 1946-12-10
Abstract: 619,434. Making gutters. THOMAS & BALDWINS, Ltd., R., and BOLAND, R. G. Dec. 10, 1946, No. 36436. [Class 83 (ii)] [Also in Group X] A gutter stop end or like section of guttering 1 comprises a channel section pressing of sheet metal, preferably light alloy, with an integral outlet spigot 3 pressed out from the same piece of material. In manufacture a depression is formed in a square sheet of 14-gauge aluminium alloy DTD 606 by a series of drawing operations, and the base is cut out to form the spigot, the sheet is then annealed, trimmed, and pressed to channel form. The vertical back wall 4 of the gutter has bolt holes 5 for connecting to the wall, and the front wall 6 is curved. One end is open and enlarged at 13 to receive the adjacent gutter length, and the other is closed by a plate 2 which has a sloping ledge 10, vertical flanges 11, and cut-away portion 12.
Patent GB-403226-A (GB)
Title: An improved device for removing superfluous hair from the human body
IPC: A45D26/00
Filed: 1932-12-23
Abstract: 403,226. Abrading-tools. DAVIES, J. O., 2320, Olive Street, St. Louis, Missouri, U.S.A. Dec. 23, 1932, No. 36490. [Class 60.] A device for removing superfluous hair comprises a flexible carrier 10 adapted to be rubbed over the skin and having on its face volcanic rock such as trimerite ground to a fineness which permits it to act on the hair structure without scratching or injuring the skin. The rock is preferably ground slightly finer than material which will pass through a screen of 400 mesh to the square inch. The carrier 10 consists of an oval sheet 11 of paper, cloth, leather or other flexible material to which is secured, e.g. by adhesive, a sheet 12 of paper, cloth or thin fibre carrying the abrasive 13. The carrier is provided with a handle 14 in the form of a strap the ends of which are secured between the sheets 11, 12.
Patent GB-156139-A (GB)
Title: Process for the manufacture of low-boiling chlorinated hydrocarbons
IPC: C07C17/00
Filed: 1920-12-31
Abstract: Chlorinated hydrocarbons of low boiling point, useful as solvents, are obtained by cracking oils or comparatively high boiling point in the presence of chlorine or hydrochloric acid. Steam may be introduced into the reaction; a contact material, such as quartz, porcelain, platinum and like metals, or metallic chlorides, may be present; and the reaction may take place under increased pressure. Specified starting materials are petroleum, mineral oils, solar oil, mazut, tar oils, resin oils, paraffin oil, and Galician or Roumanian gas oils.  According to examples:-(1) equal parts of petroleum vapour, hydrochloric acid gas and steam are passed through a tube heated in a furnace. After condensation of the product and neutralization with lime, a mixture of hydrocarbons and chlorinated hydrocarbons is obtained, which can be separated by distillation; (2) tar oil and hydrochloric acid or chlorine gas are passed over a white hot platinum &c. spiral in an apparatus resembling an isoprene lamp. The high boiling fraction of the product is again passed through the apparatus, and the low boiling fraction of chlorinated hydrocarbons allowed to accumulate; (3) a mixture of an atomized gas oil and hydrochloric acid is forced into a heated retort; (4) a mineral oil is heated under pressure with concentrated hydrochloric acid solution in an autoclave, and after some hours, the product permitted to distil over into a vessel containing lime.  The chlorinated hydrocarbons deposited are then purified by fractional distillation. The reaction is facilitated by the presence of small quantities of chlorides, such as calcium, zinc, magnesium, aluminium, manganese, or tin chloride.  Hydrocarbons.-Diolefines may be obtained by eliminating chlorine from the low-boiling fractions of the products. Specification 156,122 is referred to.
Patent GB-1385097-A (GB)
Title: Tungsten halogen lamp
IPC: H01K1/50
Filed: 1972-08-04
Abstract: 1385097 Tungsten halogen lamp PATENTTREUHAND-GES FUR ELEKTRISCHE GLUHLAMPEN mbH 4 Aug 1972 [10 Aug 1971] 36584/72 Heading H1F A tungsten halogen lamp comprises a tungsten filament and an inert gas filling the filling containing fluorine and oxygen in equimolar amounts. The inert gas may be argon or nitrogen. The lamp envelope may be of quartz, hard or ordinary glass. The lamp may be double or single-ended. It is said that the compound WO2F2 forms within the envelope during operation.
Patent GB-849151-A (GB)
Title: Improvements in or relating to apparatus for the successive presentation of objects to a work position
Inventor: SMALL ERNEST FREDERICK
IPC: B65G33/02
Filed: 1955-12-21
Abstract: 849,151. Screw conveyers. U.D. ENGINEERING CO. Ltd. Dec. 21, 1956 [Dec. 21, 1955], No. 36594/55. Class 78 (1). Transparent containers 1 are moved into a testing position and caused to remain temporarily stationary therein by a worm 7 consisting of a drum surface 8, shown developed in Fig. 3, on which are secured strips 9, 10 which define a generally helical passage having a central portion extending perpendicularly to the drum axis. The containers are engaged in the passage between the strips 9, 10 whilst being supported on a dead plate 6, the arrangement being such that during rotation of the worm they are first spaced from the preceding containers, then stopped in the testing station, and finally moved away from the testing station. The testing station may consist of a photo-electric device for detecting flaws in the bottoms of the containers as described in Specification 798,906. The containers are fed to the worm by a conveyer consisting of a succession of plates 2 from which the containers are deflected on to the dead plate 6 by guides 4, 5, the containers being returned to the conveyer after traversing the worm by continuations of these guides.
Patent GB-1056171-A (GB)
Title: An electrode for electric arc welding and surfacing of grey and high-strength cast iron
Inventor: LARIN GUENNADY NICKOLAEVICH
IPC: B23K35/30
Filed: 1961-10-12
Abstract: A flux coated electrode for welding or surfacing cast iron has the following core: -  .9-19%.V or.Nb .0.2%.max..C .0.5%.max..Mn .1.0%.max..Si .0.04%.max..P .0.04%.max..S .balance..Fe  In a modification a low carbon non-alloyed steel core is coated with: - ..60-70%.ferrovanadium or ferroniobium .or.40-50%.titanium metal powder ..6-18%.marble or dolomite ..6-18%.fluospar or ferrotitanium ..1-10%.ferrosilicon or feldspar ..1-10%.potassium carbonate and/or nitrate  A water glass binder is used
Patent GB-1467928-A (GB)
Title: Catheters
IPC: A61F2/958
Filed: 1975-09-05
Abstract: 1467928 Balloon catheter KENDALL CO 5 Sept 1975 [11 Sept 1974] 36714/75 Heading A5R A catheter comprises a shaft 22 having a drainage eye 24 at its distal end and containing a drainage lumen 28 for draining urine from the bladder of a patient, a flexible tube 44 surrounding the shaft, except the'proximal 30 and distal 26 ends thereof and forming a balloon around the shaft which is of sufficient length for its proximal end portion 48 to be external to the body of a patient when its distal end portion 46 is located in the bladder. and an inflation lumen 34 for admitting fluid to the space 42 between the balloon and the shaft to inflate the balloon, the distal end portion of the balloon being inflatable by a lower internal pressure than the proximal end portion. The distal end 26 of the shaft is inserted into the patient's urethra and when it is assumed that it, together with the distal end portion of the balloon has reached the bladder then fluid is injected through a valve 36 into lumen 34 and into the distal end portion 46 of the balloon to inflate it. If the distal end portion 46 has not reached the bladder then the walls of the urethra prevent inflation of the distal end portion 46 and cause the fluid to inflate the proximal end portion 48 externally of the patient. This prevents damage to the urethra. It is ensured that, when the balloon is correctly inserted into the bladder, the distal end portion 46 will have a tendency to inflate greater than that of the proximal end portion 48 by (a) making the transverse radius of the portion 46 greater, (b) making the wall thickness of portion 46 less than that of portion 48, or (c) making the proximal end portion 48 of several layers of material thus again making its thickness greater. The inflation lumen may communicate with the space 42 at the distal end portion 46, as shown, or at the proximal end portion 48 in which case grooves formed in the outer surface of the shaft 22 ensure fluid communication along the length of the balloon when inserted in the urethra.
Patent GB-1300018-A (GB)
Title: Fluid valves
Inventor: RIHM HERBERT
IPC: F16K31/52
Filed: 1971-08-04
Abstract: 1300018 Valves HONEYWELL GmbH 4 Aug 1971 [8 Aug 1970 22 Dec 1970] 36735/71 Heading F2V A valve comprising a valve seat 19 and a part-spherical valve member 18 includes an actuating rotatable shaft 5 secured to which is a crank-member 14. A pin 26 passes through the crank member and engages the valve member so that on rotation of the shaft 5 the valve member is moved away from the seat. The valve member carries a rod 20 which cooperates with a pair of guides (23, 24) (Fig. 2, not shown) which constrain the valve member to move along the axis of the valve. In so doing the valve member rotates about the axis of the rod 20. A bubous portion of a sleeve (27) allows a degree of play for the valve member. Alternatively a resilient rod (32) (Fig. 5, not shown) may be used.
Patent GB-957982-A (GB)
Title: Process for the removal of finely-divided suspended particles from gases
IPC: B01D47/00
Filed: 1960-10-27
Abstract: Organic compounds containing an alkaryl or aliphatic radical with 8-18 carbon atoms and a replaceable hydrogen attached to oxygen, nitrogen or sulphur are condensed with ethylene and propylene oxide in either order.  Specified compounds are alcohols, carboxylic acids, amines, mercaptans, carboxylic acid amides, sulphonic acid amides and especially nonyl phenol, coconut oil fatty alcohol, coconut oil amine alcohol, and coconut oil fatty acid diethanol amide.  The compound is preferably condensed with 3-15 mol. of ethylene oxide and then with 1-17 mol. of propylene oxide.  Numerous specific addition products are mentioned. These addition products may be used as binding agents for removing solid or liquid particles from air or gases (see Divisions B1 and B2). Specification 950,844 is referred to.ALSO:Solid or liquid suspended particles from air or other gases are removed by introducing a non-foaming or slightly foaming binding agent/water system, said binding agent comprising an addition product of ethylene oxide or of ethylene and propylene oxide to compounds containing an alkaryl or aliphatic radical with 8 to 18 carbon atoms and a replaceable hydrogen atom linked via oxygen, sulphur, or nitrogen, into a filter at a temperature below the lower consolute temperature of the binding agent/water system, so that the binding agent is in aqueous solution, heating the filter above the lower consolute temperature producing an oily layer of the binding agent which collects the particles and removing the binding agent and particles by washing the filter with water below p  the lower consolute temperature.  Specified filters are electrical precipitators, wet separator type filters and filters with a mechanical filter element. The solutions may be atomized into the filter chambers or coated on the filter walls, or they may be used in gas masks.  Preferred binding agents are those described in Specification 950,844 [Division C2].
Patent GB-1436006-A (GB)
Title: Worm drive for electrically wound clock
IPC: G04C3/00
Filed: 1973-08-02
Abstract: 1436006 Toothed gearing BUNKER RAMO CORP 2 Aug 1973 [29 Sept 1972] 36876/73 Heading F2Q [Also in Division G3] A worm drive mechanism for an electrically wound clock comprises a worm in the form of a helical wire spring 14 secured coaxially to a motor shaft 12 and having a portion of the spring extending as a cantilever beyond the end of the shaft 12, and a worm wheel 22 in engagement with the cantilevered portion of the spring. The pitch of the unstressed spring matches that of the worm gear.
Patent GB-1117536-A (GB)
Title: Improvements in or relating to the measurement of the stiffness of materials
Inventor: GOTTLIEB NORBERT
IPC: G01N3/20
Filed: 1966-08-18
Abstract: 1,117, 536. Measuring the stiffness of materials. JERSEY-KAPWOOD Ltd. Aug. 17, 1967 [Aug. 18, 1966], No.37080/66. Heading G1S. In a method of measuring the stiffness of a flexible material, the material is placed over an apertured weighing platform 2, which is spaced from a lower plate 3, the material being pushed through the aperture by a reciprocable plunger 4 until the end of the plunger abuts the plate 3 to actuate an electrical contact indicating that the material has bent through a predetermined angle. The force required to do this is measured on the balance 1. The balance may be replaced by another form of dynamometer. The spacing of the platform 2 and the plate 3 may be altered.
Patent GB-1115209-A (GB)
Title: Butterfly valve assemblies
IPC: F16H1/22
Filed: 1965-08-31
Abstract: 1,115,209. Valves. NIPPON CHUZO KABUSHIKI KAISHA. 31 Aug., 1965 [8 Oct., 1964], No. 37206/65. Heading F2V. A butterfly valve is opened by turning a handle 18, Fig. 1B, and hence a worm-wheel 15 and a cam 14 keyed to a rotatable but axially restrained sleeve 11 which is connected to a screw-thread 34 to the valve shaft; a lever 19 is secured on the latter. A dog 21 slidable in a slat 22 in the lever 19 engages a recess 26 in the cam 14 and so turns therewith through 90 degrees to rotate the valve to the closed position. When the dog coacts with an inclined groove in a fixed cam 24 the slide is withdrawn from the recess 26 and rides on the periphery of the cam 14 so preventing any further movement of the lever and valve shaft. The cam continues to rotate and due to the thread 34 translates the valve shaft leftwardly and forces the valve on to its seat through cylindrical wedges 6, Fig. IA, on the valve shaft. The wedges 6 are housed in skewed liners 8 in corresponding bores through ears 3 on the valve. Axial thrust is transmitted to members 10 via a ring 30. The reverse action takes place when the handle 18 is operated to open the valve.
Patent GB-430305-A (GB)
Title: Improvements relating to supensions for vehicles
IPC: B60G11/08
Filed: 1934-01-08
Abstract: 430,305. Vehicle spring-suspensions. DUBONNET, A., 114, Boulevard Maurice BarrÛs, Neuilly-sur-Seine, France. Jan. 8, 1934, No. 37397. Convention date, Jan. 7, 1933. Divided out of 423,632. [Class 108 (ii)] In spring-suspension systems for vehicles of the kind in which each wheel is independently mounted on a spring-controlled arm pivoting about an axis parallel to the stub axle, the controlling means consists of at least one guided helical spring acting between the arm and a sprung part of the vehicle and one or both ends of which are capable of pivoting relative to these members about an axis parallel to the pivotal axis of the arm. In the construction shown three concentric helical springs h bear upon one end of the arm c, the other end of which pivots about an axis A supported in a substantially triangular casing d which in turn rotates in fixed bearings f f<2>, the arrangement permitting the line of action of the springs to lie approximately in a plane containing the stub axle. At their lower ends the springs h bear upon a sleeve il rotatable upon an extension of the stub axle B, and at their upper ends against a spring seat i<2> having a curved bearing-surface. The guiding means for the springs may be in the form of an internal rod or of telescopic cylinders.
Patent GB-920187-A (GB)
Title: Improvements in deflection coil assemblies for cathode ray tubes
IPC: H01J29/82
Filed: 1960-11-01
Abstract: 920,187. Electron beam apparatus. E. K. COLE Ltd., and G. A. BAERSELMAN. Nov. 1, 1961 [Nov. 1, 1960], No. 37416/60. Class 39 (1). A cathode-ray tube deflection coil assembly includes flexible permanent magnets M1-M4 for correcting the magnetic flux distribution. As shown, the assembly comprises a magnetic yoke A coaxially assembled with plastic former B, and coils L1-L4 connected to terminals on insulating disc D. Aluminium supports S1-S4 and holders H1-H4 carry magnets M1-M4 of flexible plastic incorporating embedded magnetic particles. The magnets may be adjusted as regards position and shape by suitable bending of the supports and holders.
Patent GB-1464851-A (GB)
Title: Plastics articles
IPC: B29C71/02
Filed: 1973-11-06
Abstract: 1464851 Smoothing moulded surfaces J N HAGUE and L W WILLOUGHBY 6 Nov 1973 [11 Aug 1972 6 Nov 1972] 37582/72 and 50972/72 Heading B5A The transparency of a liquid container that is manufactured from a transparent plastics material and which has a rough external surface resulting in a loss in transparency is improved by contacting the rough surface with a smooth, heated, rigid surface to smooth the rough surface. The rigid surface may be a metal or glass surface preferably highly polished and/or having a release coating, e.g. of a silicone resin. When treating a cylindrical container it may be rolled over or under the rigid surface in the form of a stationary flat bed or plate. When it is rolled under the rigid surface it may be carried on a conveyer belt. When it is rolled over the surface a belt above the surface may be used to move the container over the surface. The containers may also be treated by placing them in a suitable mould whose inside walls constitute the rigid smooth surface. The containers may be ampoules or bottles containing pharmaceutical or cosmetic products, bottles containing liquids for intravenous infusion, in particular those made from non-crystalline polyethylene by blow-moulding.
Patent GB-1072645-A (GB)
Title: Improvements in or relating to a combination of a tractor and a farming implement coupled to it
IPC: B62D49/06
Filed: 1964-09-15
Abstract: 1,072,645. Tractor power lift mechanisms; haymaking machines. P. W. ZWEEGERS. Sept. 15, 1964 [Sept. 20, 1963], No. 37584/64. Headings A1F and A1P. A quick-hitch coupling between a hay rake and a tractor power lift mechanism comprises a triangular frame 22 for securing to the lifting links of a tractor and consisting of two lower hooks 21 and an upper vertically extending part 23 and a further triangular frame 2 for securing to an implement and consisting of a lower rod for engagement with the hooks 21 and an upper funnel-shaped aperture 30 for receiving the vertical part 23 which is held in position by a latch 25. The frame for attaching to the implement has a series of upper holes 31 and a series of lower holes in an adjustable lever 32. The hay rake has a frame 2 for use in the working position and another frame 2 for transport shown in Fig. 1. In this later position the upper funnel-shaped aperture is formed in a bar 19 which is tilted in Fig. 1 but normally forms a guard against the raking members. A collapsible stand 20 is also incorporated.