baber/WOPTO huggingface dataset:
Patent GB-794191-A (GB)
Title: Improvements in and relating to electric switches
Inventor: STOBART LESLIE WALLACE
IPC: H01H3/30
Filed: 1954-10-01
Abstract: 794,191. Oil-break switches; snap actuation of switches. ENGLISH ELECTRIC CO., Ltd. Sept. 23, 1955 [Oct. 1, 1954], No. 28336/54. Class 38 (5). A switch has a moving contact element 5 with at least three positions in each of which it is locked by one or more of a number of catches 21a ... 21d biased to engage with locking faces 20a ... 20d moving in correspondence with the element 5 which is connected by a resilient connection to an actuating member, movement of the member causing the stressing of the connection prior to the release of an engaged catch to permit movement of the element 5 under the action of the connection. In the oil-immersed isolator shown, rotation of an operating shaft 8, e.g. in an anticlockwise direction, turns bell crank levers 11a, 11b in a clockwise direction. These levers are freely pivoted on a shaft 12 and move a thrust block 13 to the left to compress springs 18a, 18b, which with springs 18c, 18d are carried on guide rods 14a, 14b and interposed between the block 13 and thrust blocks 15, 16. The blocks 15, 16 are interconnected by links 17a, 17b to which are pivotally connected levers 19a, 19b fixed on the shaft 12. Each lever 19a 19b has two locking faces 20a, 20b and 20c, 20d respectively and in the central " off " position shown, the levers 19a, 19b are locked by catches 21b, 21c engaging faces 20b, 20c The levers 11a, 11b have projections 23a, 23b and the rotation of these levers in the clockwise direction causes the projection 23a to release the catch 21b and free the levers 19a, 19b for rapid clockwise rotation under the bias of the springs 18a, 18b which move the blocks 15, 16 to the left. The moving contact 5 is connected by an insulating link 25 to a crank 24 fixed on the shaft 12. In either of the " on " positions the element 5 is locked against movement by the fixed contact 6 or 7 acting as a stop and by a catch 21a or 21d.
Patent GB-1021638-A (GB)
Title: Cleaning device for a gas filtering screen
IPC: F24F13/28
Filed: 1964-07-09
Abstract: 1,021,638. Gas-filters. SVENSKA FLAKT-FABRIKEN A.B. July 9, 1964 [July 12, 1963], No. 28424/64. Heading B1T. A frame-mounted gas filter I is cleaned by a suction head 6, having a suction slot 7 coacting with the filter, the head 6 reciprocating along the length of the filter and communicating with a slot 4 in suction box 3, in which slot 4 head 6 is mounted, box 3 being connected to a suction fan by duct 5. The slot 4 is covered by a flexible steel strip 15 which is pressed aside by a cam 16 on head 6 to allow communication between opening 8 to slot 7 and the inside of box 3. Head 6 is moved on an endless chain 9, by a reversible motor driving shaft 14, chain 9 carrying a plate 17 which closes duct 5 in one position of head 6, enabling several cleaning devices to operate sequentially using a common fan.
Patent GB-694409-A (GB)
Title: Improvements in double-acting check valves, more particularly for hydraulic braking systems
IPC: B60T11/28
Filed: 1951-12-04
Abstract: 694,409. Fluid-actuated valves. BENDIX AVIATION CORPORATION. Dec. 4, 1951 [Dec. 5, 1950], No. 28438/51. Class 135 [Also in Group XXXIV] A two-way check valve for use in the master cylinder of a hydraulic braking system consists of an apertured rigid disc 40 over which is stretched a centrally apertured resilient member 42 of rubber, and a spring 52 urging the resilient member on to a seat 34. The apertures 58 in the disc 40 are offset with respect to the aperture 56 in the resilient member so that flow from the master cylinder to the wheel cylinders takes place by deflection of the resilient member away from the disc 40, and in the reverse direction by movement of the resilient member against the spring away from the seal 34. The resilient member has longitudinal grooves 60 in its periphery and a lip 54 to grip the spring.
Patent GB-370838-A (GB)
Title: Improvements in pickling machines
IPC: B08B3/04
Filed: 1931-10-13
Abstract: 370,838. Pickling machines. PHOSPHOR BRONZE CO., Ltd., 87, Sumner Street, London.-(Williams, S. L.; 318, Whitely Street, Bridgeport, Ohio, U.S.A.) Oct. 13, 1931, No. 28472. [Class 82 (ii).] Pickling apparatus comprises a pickling tank, one or more rockers each comprising a pair of straight spaced arms pivoted intermediate their ends and overhanging the tank at one end on which the beam from which the pickling crates are suspended is supported, the other end of each rocker being connected to a crank or crank disc which imparts the desired rocking motion. Adjacent one of the side walls of a pickling tank 1 are pillars 2, 3 carrying a horizontal beam 4 in which are mounted two pairs of sets of bearings 5 for two rockers each consisting of a pair of spaced arms 6 which overhang the tank at their inner ends. The outer ends of the arms are joined by shafts 7, each shaft being connected by a rod 8 to a crank arm or crank disc 11 on a shaft 12 driven by an electric motor 13 through suitable reduction gearing. The crank discs are arranged so that when one of the shafts 7 reaches its uppermost position the other shaft 7 is at its lowest position. The inner end of each of the arms 6 has a transversely extending concave seat 17 to receive the under surface of a beam 15 from which the pickling crate is suspended. The ends of the beam 15 are formed with projecting semi-cylindrical extensions 15a which rest on the webs 19 of the arms 6 to prevent rotation of the beam 15. The beam 15 has a bail 16 with which the hooks of the carrying crane engage.
Patent GB-229263-A (GB)
Title: An improved process for the metallisation of porcelain or glass
IPC: C25D5/54
Filed: 1924-11-28
Abstract: 229,263. Eijssen, A. F. Feb. 15, 1924, [Convention date]. Coating non-metallic surfaces with metal.- Porcelain or glass is coated with brass &c. by rubbing the dulled surface with a small quantity of glycerol by means of a brush of brass or like metal. Other metals, e.g. copper may then be deposited electrolytically on the coated article. When silver is desired in the deposit nitrate of silver may be added to the glycerol.
Patent GB-1057875-A (GB)
Title: Improvements relating to cartons and blanks therefor
Inventor: GOOLNIK SOLOMON
IPC: B65D5/68
Filed: 1962-07-25
Abstract: 1,057,875. Boxes. S. & S. GOOLNIK Ltd. Sept. 3, 1963 [July 25, 1962], No. 28631/62. Heading B8P. A carton comprises a tray and a lid, there being a slot in two of the walls of the tray and tongues on corresponding walls of the lid so that the tongues engage in the slots to fasten the lid to the tray. The tray is formed from a blank (Fig. 1, not shown) and consists of a bottom region (1), with side panels (2, 3) and end panels (6, 7) which are bent about fold lines joining them to the region (1) so as to form side and end walls, tabs (20 to 23) attached to the ends (6, 7) being fastened to the side walls (2, 3) by adhesive or staples. Slots (12, 13) are formed by the edges between the bottom (1) and the side walls (2, 3). The lid is formed from a blank (Fig. 2, not shown) in a manner similar to the tray except that tongues (57, 58) are joined to side walls (37, 38) by fold lines (59, 60) and incorporate second fold lines (65, 66) and outwardly extending parts (67). The lid is placed over the tray and tongues (57, 58) are inserted into slots (12, 13) the fit being sufficiently close that parts (67) cause the tongues to be distorted on entry and so engage the slots more firmly.
Patent GB-1089054-A (GB)
Title: Acrylonitrile production from dimerisation by products
IPC: C07C/
Filed: 1965-07-06
Abstract: Acrylonitrile is catalytically produced from bis-cyanoethylether by heating the latter in the presence of a minor quantity (i.e. up to 25% by wt.) of a quaternary alkyl ammonium hydroxide. The bis-cyanoethylether may be that obtained as impurity in the electrohydrodimerization of acrylonitrile to adiponitrile and it may also be contained in a stream comprised of acrylonitrile, adiponitrile, propionitrile and 3-hydroxypropionitrile; the stream is suitably heated to 70-250 DEG  C. in the presence of the above quaternary alkyl ammonium hydroxide.  3-hydroxypropionitrile and other nitriles may also be produced by the process of the invention.
Patent GB-822744-A (GB)
Title: Improvements relating to moulding polytetrafluorethylene
IPC: B29C43/18
Filed: 1956-09-19
Abstract: 822,744. Moulding polytetrafluoroethylene. MONTECATINI SOC. GENERALE PER L'INDUSTRNI MINERARIA E CHIMICA. Sept. 19, 1956, No. 28650/56. Class 87(2). Polytetrafluoroethylene is used to mould an article, part of which is angularly disposed to the direction of applied pressure and is engaged with a metallic insert. Pow. dered P.T.F.E. is partially compressed, i.e. compressed enough to make the particles adhere to form a coherent body the mean density of which is less than that of P.T.F.E. itself. The body is then heated to sintering temperature, say 840‹F., and moulding pressure is applied to the heated body in a mould which contains a metallic insert having a re-entrant surface. Powdered P.T.F.E., 20 is placed in a mould having side walls 12 and a bottom punch 11  and is partially compressed in situ by pressure on a top punch 13 which has a core 14 and incorporates there between the insert 17 having a re-entrant surface 18. The mould is then heated to sintering temperature, sufficient pressure applied to fill the holes 18 with bosses 25 (not shown), and the heated P.T.F.E. is then quenched to room temperature. Alternatively the primary compression may be applied outside the mould. U.S.A. Specification 2,400,099 is referred to.
Patent GB-793247-A (GB)
Title: Improvements relating to tapes, particularly for use in electric cables, and in making up articles such as manifolds
Inventor: MILNER REGINALD CONRAD
IPC: H01B3/08
Filed: 1954-10-05
Abstract: 793,247. Tapes. ENFIELD CABLES, Ltd. Oct. 3. 1955 [Oct. 5, 1954; Feb.22, 1955], Nos. 28670/54 and 5333/55. Class 109 '[Also in Group XXVIII] A tape comprises a body of cured or partially cured synthetic thermosetting resin reinforced longitudinally by a number of bundles or rovings of continuous glass filaments. Evenly spaced rovings of glass filaments pass under bars 12 in a bath 10 containing synthetic thermosetting resin 11, and then over rods 13, between rods 14 to determine the width of the tape and between flexible sheets 15 of polyvinyl chloride which remove excess resin, to an electrically heated oven 20 in which the resin is cured, after which the tape is cooled by air from a tube 31 and wound - on a spool 33 driven through a slipping clutch. A cable including a layer made by winding helically such a tape is claimed, as also is a method of making a pipe or manifold by winding/such a tape helically around a mandrel, applying heat and curing to form a continuous layer. Details of many suitable synthetic resins are given.
Patent GB-445353-A (GB)
Title: Improvements in gas fired ovens
IPC: F24C15/32
Filed: 1934-10-06
Abstract: 445,353. Gas ovens. SOUTH METROPOLITAN GAS CO., and SPAVIN, C., 709, Old Kent Road, London. Oct. 6, 1934, No. 28676. [Class 126] In a gas-fired oven comprising an inner casing 1 closed to the products of combustion, an intermediate casing 3, and an outer casing 6 lagged with heat insulating material, the flue 4 between the inner and intermediate casings forms a passage for the combustion products, and the flue 8 between the intermediate and outer casings 3, 6 has an air inlet 10, an air outlet 11 in the combustion zone, and baffles 9 so that air flows upwardly from the intake 10 and then downwardly to the outlet 11, the baffles being transverse to the flue so that the outer surface of the intermediate casing forms one of the walls of each part of the flue. In the form shown, with the burner 5 extending from back to front, air flows up the back portion of the flue 8, over the top, down the sides, through the bottom to the outlet 11. Alternatively, when the burner extends laterally, the air enters the outer flue 8 at the sides, passes over the top, down the back and through the bottom to the outlet. The flue 4 may be provided with baffles 12.
Patent GB-1087016-A (GB)
Title: Crysanthemic acid esters, methods of making them, and insecticidal compositions including them
IPC: C07D207/404
Filed: 1965-07-06
Abstract: The invention comprises crysanthemic acid esters of the formula <FORM:1087016/C2/1> wherein G represents <FORM:1087016/C2/2> in which R1 and R2 are hydrogen or a methyl group, R3 and R4 are hydrogen or a methyl or phenyl group; and R5 is hydrogen or a methyl or ethyl group.  The compounds are made by esterification, using known methods, of crysanthemic acid with an imide of the formula <FORM:1087016/C2/3> Specified methods include (a) esterification using an acid catalyst with azeotropic removal of water, (b) tranesterification of the methyl, ethyl or propyl esters of the acid in the presence of a basic catalyst, (c) reacting the hydroxy imide with the acid halide in the presence of a tertiary base, (d) refluxing the imide with the acid anhydride, (e) reacting the imide derivative of the formula <FORM:1087016/C2/4> in which A is halogen, with free acid in the presence of a tertiary amine, or with an alkali metal or ammonium salt of the acid.  The esters are used as insecticides (see Division A5). Numerous compounds are specified.ALSO:Insecticidal compositions comprise crysanthemic acid esters of the formula <FORM:1087016/A5-A6/1> where G represents <FORM:1087016/A5-A6/2> or <FORM:1087016/A5-A6/3> in which R1 and R2 are hydrogen or methyl groups and R3 and R4 are hydrogen or methyl or phenyl groups; and R5 is hydrogen or a methyl or ethyl group.  The compositions may take the form of oil solutions, emulsifiable concentrates, wettable powders, dusts, aerosols, mosquito coils or bait and may contain other active components, e.g. pyrethrum extract, allethrin, o,o - dimethyl-o-(3 - methyl - 4 - nitro phenyl) thiophosphate, Malathion (Trade Mark), diazinone, dimethoate, and g -BHC and synergistic agents, e.g., piperonyl butoxide, piperonyl sulphoxide and b -butoxy-b \sv-thiocyanodiethyl ether. The compositions may also contain a stabiliser, e.g. those of the alkylphenol type.  Numerous Examples are provided.
Patent GB-924698-A (GB)
Title: Method for manufacturing high purity aluminium
IPC: C22B21/00
Filed: 1961-08-09
Abstract: High purity aluminium is made by heating a compound of the form (RR1CHCH2)2AlX in a hydrocarbon medium the olefine RR1CH=CH2 and possibly hydrogen being given off.  R and R1 are alkyl radicals which may be the same or different and X is a hydrogen atom or the RR1CHCH2 radical.  The solution or dispersion may contain 2-50%, preferably 5-20% of the compound and is heated to 200-300 DEG  C., preferably 220-250 DEG  C.  The reaction should be carried out under an inert gas cover H2A or N2 and may be performed under reflux conditions. Aluminium powder may be added to the hydrocarbon medium to seed the reaction.  Specification 788,619 is referred to.
Patent GB-1058046-A (GB)
Title: Improvements in or relating to rotary regenerative heat exchangers
Filed: 1965-07-07
Abstract: 1,058,046. Thermal regenerators. H. BRANDT, and A. KRITZLER, [trading as APPARATEBAU ROTHEMHLE BRANDT & KRITZLE July 7, 1965 [July 30, 1964; Nov. 10, 1964], No. 28887/65. Heading F4K. In a rotary duct type regenerator in which a seal between the matrix end faces and each rotary duct includes a matrix frame 32 carrying, a sealing strip 36 (Fig. 2, not shown), wherein this frame 32 is joined to each rotating duct by an expansion member (33) of spring steel or other suitable resilient material and also by ball-andsocket swivel joints (48) (Figs. 2 and 5, not shown) for rotating the frame 32 with the duct, the radial arms of the frame 32 are formed in two sections 59, 60 joined flexibly end-to-end by a spring-packed bolt 65 passing through lugs 61, 62 on the respective sections. Lug 61 is connected through a lug 66 and levers 67, 69 to a draw-bar 72 mounted on duct member 54 and operated by a nut 77 adjacent the circumference of the regenerator for adjusting the angle of deviation of the parts 59, 60 for the frame 32 to follow more closely the surface of the regenerator. Cantilevers may be mounted on the radial part of frame 54 and co-operate adjustably with frame 32 for aiding the transmission of rotary movement to frame 32 (Figs. 9, 10, not shown).
Patent GB-384032-A (GB)
Title: Improvements in or relating to fitments or supports for wellington, riding and similar boots or footwear
IPC: A43B5/04
Filed: 1931-10-19
Abstract: 384,032. Top boots. VINCENT, E. A., 2, Winchester Road, Leckford, Stockbridge, Hampshire. Oct. 19, 1931, No. 28961. [Class 17 (ii).] A fitment for a Wellington boot or similar footwear comprises an inflatable pad A adapted to fit round the wearer's heel and provided with an air supply tube A<3> and valve A4. The pad may have two chambers a, a<1>, as shown in Fig. 2, and may be held in position by straps, such as A<5>. According to the Provisional Specification, the chamber or chambers may be inflated and permanently sealed.
Patent GB-444328-A (GB)
Title: Improvements in or relating to automatic lathes
IPC: B23B7/02
Filed: 1934-10-10
Abstract: 444,328. Automatic lathes. B.S.A. TOOLS, Ltd., Armoury Road, Small Heath, and OGILVIE, W., c/o B.S.A. Tools, Ltd., Montgomery Street, Sparkbrook, both in Birmingham. Oct. 10, 1934, No. 28966. [Class 83 (iii)] In an automatic lathe of the kind having front and rear tool slides adapted for independent operation mounted between the headstock and a turret, a double slide base 1 consisting of a single member, is fixed across the bed on the upper side of the trays or brackets 3 formed on the front and rear parts of the machine and carries at each end a cross toolslide. The double slide base is of plate form and is secured across the bed by bolts 2, recesses 11 being provided for the cross-slide operating levers 13, 18 and a cut-away portion 8 to facilitate the passage of chips and finished work pieces. The cross-slides are independently operated by the levers 13 and 12, 18 from the cams 16, 17 respectively.
Patent GB-1423459-A (GB)
Title: Method of drying washing and a drier for carrying out this method
IPC: D06F58/30
Filed: 1973-06-19
Abstract: 1423459 Drying washing H F ARENDT 19 June 1973 [26 July 1972] 28976/73 Heading F4G A drier for drying washing comprises a rotary drum having a circular intake and housed in a cabinet, the wall of the drum being directly heated and at least one exhaust fan 10 being connected to the cabinet. As shown the drum is fabricated from a plurality of tubular rings 1 having spacers 2 interposed therebetween, opening being provided between the rings and spacers. The tubular rings 1 are partially filled with a liquid the remainder of the spaces within the rings being exhausted. The rings 1 are heated by arcuate electrical radiant heating rods 11, the efficiency thereof being increased by their use with heat insulated arcuate reflectors 12. Entrainment means 3 are provided in the drum. The drum is driven and supported by rollers (Fig. 2, not shown). The illustrated drier is of a two-part continuousflow drum type. A drier for batch-type drying is also disclosed (Fig. 4, not shown). The maximum temperatures of the fluid in the tubular pipes may be controlled by the use of thermometers which control the heating of the pipes.
Patent GB-280371-A (GB)
Title: Improvements in signalling apparatus applicable for use on road vehicles
IPC: B60Q1/34
Filed: 1926-08-17
Abstract: 280,371. Rolph, W. M. Aug. 17, 1926. Order-type apparatus.-A number of compart,- ments 1, 10 each exhibiting a warning signal are detachably secured together, as by means of bolts or nuts 20 screwed on to extensions of a partition element in the compartment 1. A taillamp casing 14 may be secured to the warning signal compartment. The signals may be exhibited on both the front and rear face of the apparatus and the partition 4 of the compartment 1 may stop short of the stencil plates so that when either of the lamps 8, 9 is lit, the effective length of the directional signal, which is in the form of an arrow, is increased. A switch for the directional signals is adapted to be mounted on the steering wheel and comprises a knob 22 carried by a rubber &c. block 23 secured to a base 22. The knob is turned to bring a pin 27 into contact with terminals 25, 26 in the signal circuits, or is rocked to cause rings 28, 29 to engage and close a horn circuit. The " stop " signal is operated by the brake lever, which is connected by a rod 33 to a switch comprising a bar 35 adapted to close contacts 36, 37. This switch carries terminals to which all connections from the battery, horn, &c. are made.
Patent GB-1357234-A (GB)
Title: Clevis assembly
IPC: F16D3/38
Filed: 1971-06-21
Abstract: 1357234 Throttle linkages CHRYSLER UNITED KINGDOM Ltd 31 May 1972 [21 June 1971] 28995/71 Heading F1B [Also in Division F2] A carburettor throttle spindle drive coupling as in Specification 1183610 except that a C- shaped clip 19 is used to locate the pin 16 in the clevis arms and the rod end 14 in the pin. The clip may be of plastics or spring steel. (For Figure see next page)
Patent GB-845951-A (GB)
Title: A device on photographic objectives for indicating the depth of field
IPC: G03B17/02
Filed: 1958-09-10
Abstract: 845,951. Depth of field indicators. SCHNEIDER, M. C. Sept. 10, 1958 [Sept. 21, 1957], No. 29003/58. Class 98(1) A depth of field indicator comprises a slide d, axially movable by cam means associated with the stop-setting ring s, and carrying markings d<11> observable through a window e in the objective mount. The slide is constrained to move axially by a pin d<3> which engages in an axial slot p<1> in an underlying guide member p. A pin r engages in a curved cam slot sl in the overlying stop-ring s, so that as the stop-ring is turned the slide d is displaced axially, and the appropriate section of the step-like indicator markings, which may be coloured, becomes visible through the window e.
Patent GB-522098-A (GB)
Title: Improvements relating to the reduction of ores
IPC: C21B13/02
Filed: 1938-10-06
Abstract: 522,098. Reducing ores. HODSON, F., and HIRSCH, P. A. Oct. 6, 1938, No. 29008. Convention date, Oct. 6, 1937. [Class 51 (ii)] Finely divided ores to be reduced are introduced into an upwardly flowing column of reducing-gases the velocity of which is regulated so as to cause the ore to be carried upwardly and maintained in, suspension until it is reduced to metal, while the temperature of the gases is kept sufficiently low to avoid fusion. The ore may be mixed with a finely-divided reducing agent such as coal dust, or it may be introduced as a colloidal suspension in oil, and the upwardly flowing gases are preferably caused to rotate or whirl as they move upwards, e.g., by injecting the air and fuel non-radiailly. The particles of ore when completely or sufficiently reduced settle out of the upwardly flowing stream owing to their increased specific gravity. A furnace for carrying out the process consists 'of concentric shafts 14, 16 into the inner of which fuel and air are delivered through angularly-adjustable nozzles 24, and ore, reducing agents and fuel through, nozzles 26, either above the fuel nozzles as shown, or below them. Alternatively the ore &c. may be dropped into the upwardly moving gases from the top of the shaft. A depending exhaust flue 20 for waste gases extends downwards to below the upper edge 22 of the shaft 14 and in operation some of the particles of ore will pass over the edge 22 and be deposited in the annular space between the shafts, while the remainder will collect at the bottom of the inner shaft. Other forms of furnace described consist of single cylindrical or truncated conical shafts with depending exhaust flues.