baber/WOPTO huggingface dataset:
Patent GB-245744-A (GB)
Title: An improved steam turbine set having a reverse turbine
IPC: F01D1/30
Filed: 1925-12-02
Abstract: 245,744. Boltshauser, H. Jan. 10, 1925, [Convention date]. Addition to 241,146. Idly-running stages, preventing adverse conditions in.-In a steam turbine of the kind described in the parent Specification, the pivoted blades which reduce ventilation losses by masking the idly running blades of the reversing turbine are automatically displaced on reversal of the direction of rotation of the turbine. The blades 3 are pivoted at 4, 8 on fixed rings 5, 7, and links 9 connected to a ring 10 rock the pins 8 when one of the links is operated by a lever 15. The reversing turbine 2, Fig. 2, receives steam from the pipes 22, RT, when the control valves 21, 26 are in the position shown. The blades 3 are maintained in the " open " position by the pistons 17, 18, steam passing along the pipe 20 into the chamber 19. The chamber 24 of the piston 18 is connected through the valve 26 and pipe 23 to a vacuum chamber. On reversing the direction of rotation of the turbine, the valves 21, 26 are moved so that the chamber 19 becomes connected to the vacuum chamber and the chamber 24 receives steam from the pipe 22, the forward turbine receiving steam through the pipe VT. This causes the pistons 17, 18 to move through one stroke, rocking the lever 15 to bring the blades 3 to their " closed " position. If the chamber 19 and piston 17 are replaced by a spring, one valve only is necessary.
Patent GB-235093-A (GB)
Title: Improvements in or relating to extensible ladders
IPC: E06C1/38
Filed: 1924-12-19
Abstract: 235,093. Obbergen, A. van. Dec. 19, 1924. Ladders are formed of two main uprights a connected at intervals by cross-bars d, and two auxiliary uprights e, the rungs being disposed alternately between one main upright and the auxiliary upright nearest to the other main upright, and between the latter and the other auxiliary upright so as to leave free passages h at alternate sides of the ladder while providing a continuous ladder portion at the centre. Upper and lower ladder portions are combined to form extension ladders, the upper portion sliding between guides b on the lower portion which may be provided with castors c. The upper ladder portion is provided with removable brackets i supported by inclined stays k.
Patent GB-1104922-A (GB)
Title: Improvements in and relating to pipe couplings
Inventor: JAWORSKI JOSEPH
IPC: F16L23/10
Filed: 1963-08-01
Abstract: 1,104,922. Clamps. AVICA EQUIPMENT Ltd. 9, Sept., 1964 [1, Aug., 1963], No. 30605/ 63. Heading E2B. A pipe coupling clamp comprises two half clamps 2, the inside surfaces of which are grooved to receive mating flanges of two pipes to be coupled, the sides of the grooves being inclined at approximately the same angle as the outer surface of the V flanges so that tightening of the clamp around the flanges of the pipes to be coupled, forces the mating faces of the two flanges into tight engagement to provide a fluid type joint between the pipes, the two half clamps being adapted to be fastened together at one side by a bolt 6 hinged at one of its ends to one half clamp and having its other end screwed to receive a nut 11 arranged in use to engage the other half clamp either directly or through the intermediary of a saddle washer 12, the other side of the clamps being connected together by means of a connecting link 8 each end of which is pivotally connected to one of the half clamps respectively. In the construction shown each end of each of the half clamps is formed with a pair of arms 14, the link 8 is positioned between the arms 14 of adjacent ends and connected to them by means of pivot pins 16, and the bolt is connected between a pair of arms 14 by a pivot pin 10 and passes between the arms of the adjacent end of the other half clamp. The saddle washer 12 has one side convex to engage in a concave seating in the arms 14. The nut 11 is self locking. In a modification a strap is provided to prevent complete separation of the half clamps if the bolt should break; the strap is U shaped and in each arm is a slot which is connected to the pivot pin 10 for the bolt by spinning over the ends of the pin. Each arm of the strap is also provided with an inwardly facing projection and these projections engage corresponding grooves in the arms 14 of the other half clamp to prevent the strap from falling off the said arms. The web of the strap is provided with a hole through which the bolt passes and the web is positioned between the nut and the saddle washer. In a modification the projections are provided on the half clamp which is engaged by the saddle washer and the strap is provided with the grooves for the recesses.
Patent GB-1516182-A (GB)
Title: Filter
IPC: B01D35/027
Filed: 1976-07-21
Abstract: 1516182 Filter DOSCO OVERSEAS ENG Ltd 21 July 1976 [22 July 1975] 30613/75 Heading B1D An oil filter housing encloses an axially slidable cage 15 which carries a tubular filter element 23, and in the filtering position shown oil flows from inlets 9 to outlets 13 through the element. To change the element, bolts 33 are removed and lid 35 rotated slightly until studs 37 can clear keyhole openings in the lid (Fig. 2 not shown) whereupon spring 41 lifts lid 35 and cage 15 until the cage abuts shoulder 43 and end sections 17, 19 of the cage close respective outlets 13 and inlets 9 (Fig. 4 not shown). A plunger 47, normally restrained against movement by post (48), is then moved transversely of lid 35 to unlock the lid from rod 45. The lid can then be lifted with filter element 23 still screwed into it, leaving rod 45 and the cage in the housing 1, so that the inlets and outlets remain closed while element 23 is replaced.
Patent GB-1269295-A (GB)
Title: Improvements in and relating to a process for screening cathode ray tubes
Inventor: AUGUSTINE FRANK THOMAS D
IPC: H01J9/22
Filed: 1970-06-24
Abstract: 1,269,295. Coating apparatus. RCA CORPORATION. 24 June, 1970 [24 June, 1969], No. 30655/70. Heading B2L. [Also in Division H1] Apparatus for depositing a luminescent coating on a cathode ray tube faceplate 24, Fig. 2, by dispensing a quantity of phosphor slurry into the faceplate and rotating the faceplate to remove excess slurry centrifugally into a surrounding collection pan, is characerised by the provision of two different sized collection pans adapted for use with different sizes of faceplate. Fig. 2. illustrates the larger pan 23 in the operative position with the smaller pan 22 latched in the raised inoperative position; the smaller pan is provided with a spout 27a which always lies within the larger pan which has a spout 27b adapted to drain into a funnel 28. The larger pan can be used with a 25" faceplate 24d or with 22" faceplate 24c (shown in phantom), and similarly the smaller pan can be used with either 17" or 19" faceplates. The pans are located at one of several processing stations to which the faceplates are conveyed in turn by a carrier 45 mounted on a stationary support 44 by rollers 59. The size of the faceplate is indicated by a flag 52a adapted to engage one or none of the three switches 53a-53c which in turn control the selection of the collection pan and the programme of times and speeds at which the faceplate is rotated by means of the motor 55. The apparatus may be used for processing screens for colour television tubes.
Patent GB-1010834-A (GB)
Title: Improvements relating to the catalytic reforming of petroleum hydrocarbons
IPC: B01J21/04
Filed: 1963-08-02
Abstract: Reforming of gasoline or naphtha in the presence of hydrogen is catalysed by a platinum group metal (only Pt is specified) on a support consisting of an alumina having a reversible benzene chemisorption of up to 5m  mol/g., hereinafter referred to as low-acidity alumina. Reversible benzene chemisorption is determined after the passage of an inert carrier gas containing benzene over the alumina, as the amount of benzene vapour subsequently desorbed, and is determined at 193 DEG  C. and a benzene partial pressure of 0.1 mm. Hg in N2.  In one embodiment reforming may be effected in two stages, with the above catalyst, and then with a platinum group metal on a more acidic support. The low-acidity alumina may be derived from a pseudo-boehmite alumina hydrate: the platinum group metal is preferably precipitated as sulphide on the support to the extent of 0.01-5% by weight of the catalytic metal.  The more acidic support for a second catalyst, if used, may be derived from b -alumina trihydrate (bayerite) and have an acidity measured as a reversible benzene chemisorption greater than 10m  mol/g.; alternatively its acidity may be provided by the presence of F or Cl in the catalyst or added to the second reforming zone in amount 0.1-8% by weight of the catalyst, or the support may constitute alumina and 1-25% boria, silica, titania or zirconia.  Low-activity alumina catalysts may constitute 5-90% by volume of the total catalysts.  Reforming conditions are 800-1100 DEG  F., 0-1000 p.s.i.g., 0.01-10 v./v./hr. feed per catalyst and up to 20,000 S.C.F./B. gas flow rate.ALSO:A catalyst suitable for reforming hydrocarbons comprises a platinum group metal (only Pt is specified) on a support consisting of an alumina having a reversible benzene chemisorption of up to 5m mol/g., hereinafter referred to as low-acidity alumina.  Reversible benzene chemisorption is determined, after the passage of an inert carrier gas containing benzene over the alumina, as the amount of benzene vapour subsequently desorbed, and is determined at 193  DEG C. and a benzene partial pressure in N2 of 0,1 mm. Hg.  The low-acidity alumina may be derived from a pseudoboehmite alumina hydrate prepared by hydrolysis of an aluminium alcoholate e.g. the isopropoxide at 0-70  DEG C.  The catalytic metal is preferably added as sulphide, particularly by precipitation of the sulphide with H2S on an aluminium hydrate slurry, and is preferably present to the extent of 0,01-5% by weight of the catalyst composition.  In a preferred reforming process a second catalyst is used comprising a platinum group metal on a more acidic support i.e. either a trihydrated alumina support (bayerite) having a reversible benzene chemisorption greater than 10m  mol/g., or an alumina whose acidity is due to the presence of 0,1-8% fluorine or chlorine, or alumina and one or more Group III or IV oxides particularly alumina and 1-25% boria, silica, titania or zirconia.
Patent GB-456239-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02M39/02
Filed: 1935-11-06
Abstract: 456,239. Fuel - injection pumps. AUTOMOTIVE PRODUCTS CO., Ltd., Brock House, Langham Street, and TRAPP, G. J., 105, Aylward Road, Merton Park, both in London. Nov. 6, 1935, No. 30707. [Class 102 (i)] A fuel-injection pump 10 has a feed pump 12 arranged in its casing and both pumps are driven by the shaft 11 which is driven from the shaft 13 through a freewheel clutch 14 arranged so that the shafts 11, 13 always assume the correct phase relationship. The pumps may be actuated independently of the shaft 13 by a handwheel 15 or a bar inserted in the holes 20. Alternatively the shaft 11 may have a ratchet wheel fitted and driven by a pawl fitted on a lever. Fig. 4 shows a further modification in which a worm wheel 28 on the shaft 11 may be driven by a worm 29 on a shaft 30 which is moved axially to put the worm into engagement with the wormwheel and is moved by the spring 33 to disengage the parts. Specification 242,921, [Class 102 (i)], is ieferred to.
Patent GB-838378-A (GB)
Title: An improved process for the production of metals and other chemical elements of metallic character in a state of high purity
IPC: C22B4/00
Filed: 1957-10-01
Abstract: <PICT:0838378/III/1> Non-metallic elements in a high state of purity, especially those belonging to Group IV, V and VI of the Periodic System, are prepared by passing a gaseous mixture of a volatile compound of the element and a volatile reducing agent, under reduced pressure, through a reaction chamber in which it is subjected, without the use of electrodes, to a high-frequency alternating electric field which induces electric discharges in the mixture and initiates chemical reduction at the ambient or at a moderately elevated temperature.  One example quoted describes the production of silicon using the apparatus shown in which a gaseous mixture of silicon tetrachloride and hydrogen is fed from the container 1 at a pressure of 2 cm. of mercury through line 2 fitted with cocks 6 and 7 to the vessel 3 of 200 c.c. volume evacuated by pump 10. The reaction vessel 3 having a diameter of 10 cm. has a coil 4 of ten turns wound on the outside and a high-frequency continuous wave current produced by a 5 kw. generator at a frequency of 1 megacycle per second is passed through the coil to induce the electric discharge in the mixture.  Silicon, formed by the reduction of the tetrachloride accumulates in the detachable bottom 3a of the reaction vessel and is removed.  Other volatile silicon compounds which may be reduced include SiHCl3, SiH2Cl2, SiH3Cl or the corresponding compounds with the other halogens.  A modification of the process discloses the use of ultra-high-frequencies delivered either as sustained waves or as pulse discharges by means of wave-guides.
Patent GB-505283-A (GB)
Title: Improvements relating to the separation of material in a finely divided state
IPC: B07B4/02
Filed: 1937-11-09
Abstract: 505,283. Pneumatic separating. GES. FUR FORDERANLAGEN E. HECKEL. Nov. 9, 1937, No. 30764. Convention date, Nov. 9, 1936. [Class 117] , In a separator, the material falls through a number of separating zones where it is exposed to variable air currents and is positively turned over between the zones to expose it on all sides to the air currents. In the form shown, the material leaving the hopper is subjected to a blast of compressed air at b and four separating zones are provided, each with its own duct for an upward air current and each zone has a device a, a<1>-a<3> for turning over the particles. The devices may be in the form of shaking devices or rollers provided with vanes. The coarse dust carried upwards from the first two zones is separated out in a cyclone separator d and the fine dust also the dust from the other two zones in separator f,. but if desired a separate separator may be used in conjunction with each zone.
Patent GB-787211-A (GB)
Title: Improvements in and relating to chargers for medium calibre guns
IPC: F41A9/84
Filed: 1955-10-27
Abstract: 787,211. Ammunition holders. VERWALTUNGSGES DER WERKZEUGMASCHINENFABRIK OERLIKON. Oct. 27 1955 [Nov. 11, 1954], No. 30770/55. Class 9(1) A cartridge charge or clip consists of a sheet metal blank 1 having bent-up sides forming channels to engage the bullet noses 2b and case rims 2a respectively, one end 3 of the blank being turned up to form an abutment for the topmost cartridge 2<SP>1</SP>. The abutment edge 4 is so inclined to the end 3 that the outermost cartridge 2<SP>11</SP> is parallel with the end 5. A metal strap 6 secured to the end 3 by a screw 7 is taken over the cartridges, passed through a slot 8 in the wall 1 and bent up at the end 6a to secure the cartridges so that they cannot fall out when the charger is lifted by a handle 9 detachably secured to the end 3. As the clip is inserted in a magazine, the bent-up end 6a is straightened by the edge 11 of the magazine and when the clip is thrust home, a pawl 13 engages the top-most cartridge 2<SP>1</SP>, so that when the clip is withdrawn the cartridges are left in the magazine, the strip 6 being pulled out of the slot 8. In a modification, Fig. 6, the strap 21 is welded to the wall 1 near the lower end 5 and drawn round the lowermost cartridge 2<SP>11</SP>. The strap has a keyhole slot which engages a rivet 22 fixed in a tightening strap 24, e.g. of steel, connected to a lock 25 pivoted on the end 3. The lock 25 is opened by the end 11 of the magazine to relax the strap 24 which slides until the rivet becomes disengaged from strap 21.
Patent GB-1268028-A (GB)
Title: Manufacture of colour television shadow masks
Inventor: VALEK JOHN G
IPC: H01J9/14
Filed: 1970-06-25
Abstract: 1,268,028. Making shadow masks; stamping. NORTHERN METAL PRODUCTS Inc. 25 June, 1970 [15 July, 1969], No. 30783/70. Headings B3A and B3Q. A method of forming a colour television uniframe shadow mask, Fig. 2, from a deep drawn shadow mask having a central foraminous portion 10 and wall portions comprises the steps of supporting the drawn down mask over substantially all of its concave surface with a first set of dies 32, 34 and 36, holding the foraminous portion 10, and bending the wall portions into flanged 16, and ribbed 18, supporting members by moving a second set of dies 26 and 28. An air cylinder retracts the plug 36 and a second air cylinder 62 rotates a cam 54 having spiral grooves. Slides 30, carrying dies 32 and 34, each have a follower pin 70 which passes through a slot 72 and rides in one of the spiral grooves so that when cam 54 is rotated by cylinder 62 the dies 32 and 34 are moved radially inward into the space left vacant by plug 36. The deep drawn shadow mask is then lowered over dies 32 and 34 and the above described sequence of steps reversed so that dies 32 and 34 move to their minimum radial position and are locked by the plug 36. The foraminous portion 10 is clamped to the top of dies 32 and 34 and plug 36 and hydraulic cylinders 40 move the external dies 28 inwards to press ribs 18 into the side walls and simultaneously fold under the side walls to form flange 16. External dies 26 are then moved inwardly by hydraulic cylinders 41 to emboss corner ribs and to tuck under the corners.
Patent GB-361525-A (GB)
Title: Improvements in rectangular sewage distributors
IPC: C02F3/04
Filed: 1930-10-15
Abstract: 361,525. End stop-gears. HARTLEY, C. J., Cae-Brest, The Avenue, Harpfields, Stoke-on-.Trent. Oct. 15, 1930, No. 30812. Class 78 (v).] In sewage distributers of the kind in which one or more distributing tubes or the like are reciprocated over a rectangular bed by means of a haulage rope, the haulage drum is driven by a reversible electric motor having a reversing switch which is automatically operated towards the end of each stroke of the distributing device. In the form shown in Fig. 1 the distributing tubes 6 carried by carriages 4, 5 running on rails 2, 3, are driven by a rope 9 on a winding drum 11 driven through gearing 22 by an electric motor the current in which is reversed by a reversing switch 14 operated by tappets 12 engaging a lever 13. In the form shown in Fig. 4 the haulage drum 11 carries a screw on which runs a nut 31 having an arm 32 which engages tappets 28 on a rod 25 the longitudinal movement of which operates a reversing switch 14.
Patent GB-1009255-A (GB)
Title: Electrical connector
IPC: H01R13/428
Filed: 1963-08-02
Abstract: 1,009,255. Two-part couplings. UNITEDCARR Inc. Aug. 2, 1963 [Aug. 6, 1962], No. 30822/63. Heading H2E. A socket contact is supported in an insulating body 56, by means of resilient fingers 26a, 26b, which have a shoulder 42 held in snapping engagement with shoulder 64 in the housing. A further two fingers lying between fingers 26a and 26b are disposed slightly inof the supporting fingers to ensure good contact with a plug. A second shoulder 24, engaging shoulder 66, in the housing prevents any longitudinal displacement of the socket within the housing.
Patent GB-1025416-A (GB)
Title: Process for the production of alpha-ethylenic mono-carboxylic acids
Inventor: LANOS FRANCOISE
IPC: C07C51/25
Filed: 1964-08-04
Abstract: Alpha-ethylenic monocarboxylic acids are prepared by the oxidation in liquid phase, of a -ethylenic mono-aldehydes by molecular oxygen in the presence of a nitrated aromatic hydrocarbon, a nitrobenzoic acid or a chloronitrobenzene. Examples describe the oxidation of acrolein to acrylic acid, methacrolein to methacrylic acid and crotonaldehyde to crotonic acid.  Mono-nitrobenzene mono-nitrotoluene, a dinitrobenzene, chloronitrobenzene, a nitrobenzoic acid, and mono- and di-nitronaphthalene are specified and the solvent media may be an exter or such as methyl, ethyl, butyl, benzyl and cyclohexyl acetate, ethyl butyrate, ethyl caproate, methyl and ethyl benzoate, ethyl succinate, methyl adipate and diethylorthophthalate; a tertiary alcohol such as tert.-butanol or tert.-octyl alcohol; hydrocarbons such as propane, butane, pentane, hexane, cyclohexane, octane, cetane, benzene, toluene, and xylenes; and in addition a liquid olefinic compound such as an olefinic hydrocarbon or halogenated derivative thereof such as propylene, 1-butene, 2-butene, isobutene, pentenes, hexenes, hexadecanes, cyclopentene, cyclohexene, cyclooctene, a methyl cyclohexene and allyl chloride or mixtures thereof.  The oxygen may as such, or as diluted with inert gases such as in air.  Salts of iron, copper or nickel may be present as catalysts, and cuprous chloride, hydroquinone or pyrogallol as inhibitors.
Patent GB-874447-A (GB)
Title: Flame detecting system
Inventor: POWERS FORREST MERTON
Filed: 1959-09-10
Abstract: 874,447. Photo-electric flame detection. GENERAL CONTROLS CO. Sept. 10, 1959, No. 30902/59. Class 40(3) A flame detection system for an oil or gas burner flame is arranged to be substantially unaffected by the average intensity of the flame but to be sensitive to fluctuations of approximately 25 c/sec. which, it is stated, are always present in such flames and occur in fairly constant proportion to the average light intensity over a large range of values of such intensity. The system includes amplifier means with a feed-back path which functions as a regenerative path for the 25 c/sec. signal and also to cancel out signals of other frequencies. The flame may be viewed by a cadmium-sulphide cell 12 fed through resistors 16a. The voltage developed across the cell is fed to the grid of valve 16 whose cathode circuit includes a resistance-capacity combination 10, 72 with a time constant of the order of four seconds. The flame flicker frequencies are thus amplified whilst the voltage representing the average flame intensity has little effect on the ability of the stage to handle flicker frequency signals. The output is coupled to a second valve, 18, which has an anode to grid feed-back path including a bridged "T" filter network 84. This is tuned to feed back the 25 c/sec. signals in phase but signals of other frequencies out-of-phase so that the wanted signals are amplified and others substantially cancelled. A further amplifier stage including valve 22 is fed from the second stage and also includes anode-grid feedback used, in this case, to cancel power frequency components and multiples thereof. The 25 c/sec. output signal is rectified at 115 to provide a positive voltage fed to the control grid of valve 24. This valve is thus rendered conductive only when a flame is present. Current flowing through it operates relay 28 controlling apparatus 30 which may control the fuel flow. As shown valve 24 operates with an A.C. supply on its grid and the network 122, 126, 128 is used to ensure that it is cut off except when a signal derived from 25 c/sec. flame flicker is present. The capacitor 128 also serves to prevent the release of relay 28 during momentary voids in the flame.
Patent GB-1134577-A (GB)
Title: Spraying apparatus
IPC: D06B1/02
Filed: 1967-09-08
Abstract: 1,134,577. Spraying apparatus. TEMAFA TEXTILMASCHINENFABRIK MEISSNER MORGNER & CO. G.m.b.H. 8 Sept., 1967 [14 July, 1967], No. 41083/67. Heading D1L. Apparatus for spraying a fibrous material with a liquid comprises an outer tube 2 coaxially surrounding an inner tube 3 and forming an annular channel between the two tubes, entry and exit ducts, 4 and 5, for tangentially introducing and discharging the fibre material at opposite ends of the channel, and spraying nozzles, 6-9, so disposed in the inner tube that they point radially outwards towards the inner wall of the outer tube. Suitably at least four nozzles are provided and they are equidistantly distributed around the periphery and along the length of the inner tube. Each nozzle may have an independently operable control valve. The liquid sprayed may be a textile softener or deliquescant. Figure 2 (not shown) gives a section along line II-II of Figure 1.