baber/WOPTO huggingface dataset:
Patent GB-1517970-A (GB)
Title: Mechanism for inter-converting rotary and reciprocating motion
IPC: F16H21/20
Filed: 1975-08-27
Abstract: 1517970 Variable-throw eccentrics INCO Ltd 27 Aug 1975 [28 Aug 1974] 35302/75 Heading F2K In a variable-throw eccentric mechanism, a pair of eccentrics, 5, 6 are equally and oppositely adjustable on a drive shaft 1 by a manually adjustable spindle 7 which has opposite hand threads each side of a central collar 26, the collar 26 being located in a slotted end of the shaft 1 with the opposite hand threaded ends screwably engaged in radial tapped bores 8 in the eccentrics 5, 6. The eccentrics have radially elongated bores b permitting the transverse adjustments of the eccentrics 5, 6 on the shaft 1, the eccentrics being jointly dovetailed together at 24, 25 for common rotation but permitting the relative, equal and opposite, adjustment of the eccentrics 5, 6 on the shaft 1. Connecting rods 12 are mounted on the eccentrics 5, 6 by races 9, 10, and the resultant assembly may after any stroke adjustment be rigidly clamped via nut 16 against a shoulder 3 on the shaft 1. To effect a stroke adjustment, the clamping nut 16 is slackened and the adjuster spindle 7 manually turned by a screwdriver or the like inserted in a slot 27 at one end of the spindle 7.
Patent GB-427953-A (GB)
Title: Improvements in and relating to spool or cop cores for dyeing yarns on spools or cops and piece goods
IPC: C07D453/04
Filed: 1934-12-08
Abstract: <PICT:0427953/IV/1> A core or support for dyeing cops of yarn and piece goods comprises a spiral spring 4 covered, to form inner and outer cylindrical surfaces, by mounting thereon chain links 5 in staggered arrangement, as shown, each link being pierced by two successive spirals.
Patent GB-483220-A (GB)
Title: Improvements in or relating to electrolytes for use in electrolytic condensers
IPC: H01G9/02
Filed: 1937-12-22
Abstract: 483,220. Electrolytic condensers. STEPHAN, F. C., and TELEGRAPH CONDENSER CO., Ltd. Dec. 22, 1937, No. 35458. [Class 37] To produce a pasty electrolyte, urea or a substituted urea is heated with an aldehyde to a temperature not exceeding 100‹ C. after which boric acid and a base, or an alkaline borate such as borax or ammonium borate are added, the mixture being again heated to the same temperature. The aldehyde may be a #-hydroxy-aldehyde such as aldol and this may be heated with an alkyl urea of the methyl type or a cyclic alkylene derivative of urea such as methylene urea. The bases which may be used are for example ammonium, sodium or potassium hydroxide, monodi- or tri-ethanolamine and ethylene diamine.
Patent GB-813034-A (GB)
Title: Improvements in or relating to apparatus for modifying the contour of airswept surfaces of an aircraft or missile in accordance with prevailing operating conditions
IPC: B64C3/46
Filed: 1955-12-12
Abstract: 813,034. Aircraft. BENDIX AVIATION CORPORATION. Dec. 12, 1955 [Dec. 15, 1954], No. 35641/55. Class 4. [Also in Group XXI] Apparatus for modifying the aerodynamic shape of a surface of an aircraft or missile comprises an inflatable tube-like element.on the surface, a distributer mechanism operable to inflate the element by connecting it to a source of pressure, or to deflate it, and a solenoid controlling the distributer and actuated by a circuit operated automatically in response to a flight condition of the aircraft or missile. Fig. 1 shows an aircraft provided with inflatable elements 17 on the leading edges of the wings, and inflatable ring shaped elements 23 on the air intakes 5 of a gas turbine engine 3. A distributer valve 37 is adapted to connect conduits 47 leading to the inflatable elements either to a tapping 28 on the gas turbine compressor to inflate the elements, or to a suction source derived from the neck of a venturi device 50 fed from a compressor tap 54, to deflate the elements. The distributer 37 is electrically controlled by an airspeed responsive switch 80 governed by a pilot head 96, and by an over-riding pilot's switch 61 settable to " inflated," " deflated," or " automatic " positions. The switch 80 may instead be responsive to Mach number or altitude. Fig. 5 shows a cross-section of the leading edge of a wing fitted with an alternative element comprising two inflatable envelopes 18, 18A of which the former is connected to conduit 47 with the inflatable elements 5 on the air intakes, and the latter is connected to a conduit 47A connected to a second distributer, and pressure and suction sources, operated by the same electrical circuit as the first distributer. Specifications 621,490 and 813,036 are referred to.
Patent GB-1138895-A (GB)
Title: Minimum amount control for centrifugal type boiler feed pumps
IPC: F04D15/00
Filed: 1966-08-10
Abstract: 1,138,895. Centrifugal pumps. W. ODENDAHL. Aug. 10, 1966 [Aug. 30, 1965], No. 35716/66. Heading F1C. A centrifugal boiler feed pump 2, Fig.2, delivers feed water from a reservoir 14 to a boiler 9 via a check valve 16 and a feed regulating valve 5, overheating of the pump during low-load or noload operation being prevented by a by-pass valve 11 which opens to ensure a minimum circulation through the pump, via a connection 10 and a return pipe 12. The by-pass valve 11 is opened by a piston 19 which lifts the valve stem 27, the piston being controlled via a pipe 18 by a control valve 17 comprising control ports 26 formed on the stem 15 of the check valve 16. When the feed regulating valve 5 is closed, and the resultant cessation of flow causes the check valve 16 to close, the valve 17 is opened to allow water to pass via pipe 18 to lift the piston 19, thereby opening the by-pass valve 11. The water acting on the underside of the piston 19 leaks around the piston and then passes via a throttle needle 28 carried by the piston to a pipe 20 containing a check valve 21 and connected to the main circuit at a point downstream of the feed regulating valve 5. The increase in the pressure above the piston 19 produced by the throttle needle 28 as the piston is lifted reduces the net lifting force. The resultant progressive operation of the by-pass valve 11 controls the by-pass flow in accordance with the feed flow to the boiler in such a manner that the sum of the two flows remains constant in the low-load range. This effect can also be obtained by omitting the throttle needle 28 and providing a spring on the valve stem 27 to oppose the lifting of the valve 11. The pipes 18, 20 may be inter-connected by a pipe 22 containing a throttle valve 23. A valve head (30), Fig. 3 (not shown), may be provided at the lower end of the valve stem (15) to co-operate with a bore (31) to provide an additional throttling effect in series with the throttling effect of the ports (26), the arrangement being such that the additional throttling effect is at a maximum in the mid-lift range. The resultant increase in the pressure gradient acting on the stem (15) increases the closing force exerted on the check valve (16) in the partial-load range, whereby a steeper variation of net pumping head with the feed flow is obtained. This facilitates the feed regulation and the operation of two pumps in parallel. In a modification, Fig. 4 (not shown), the control valve 17 is replaced by a rotary control valve (32) connected in series with the connection (10).
Patent GB-488257-A (GB)
Title: Improvements in trailer vehicles
IPC: B60P1/54
Filed: 1936-12-30
Abstract: 488,257. Vehicle fittings for loading. MOTLEY, L. Dec. 30, 1936, No. 35718. [Class 78 (iv)] [Also in Group XXXII] In a four-wheel vehicle, a davit or crane 12 rotatable about a vertical axis is mounted on a longitudinal member, connecting the front and rear axles, so as to load and unload to either side bulky loads such as pontoons for floating bridges, elements 10, 11, of which are shown mounted on cradles 7.
Patent GB-982083-A (GB)
Title: Improvements in or relating to agricultural planting machines
Inventor: STRUTT GORDON KNOWLES
IPC: A01C9/02
Filed: 1962-09-20
Abstract: 982,083. Planting machines. M. WESTAWAY. Dec. 20, 1963 [Sept. 20, 1962], No. 35807/62. Heading A1D. A planting machine comprises trays 19 pivotally mounted on a conveyer chain 13 and each shaped to carry a potato or other tuber, the trays sliding along a horizontal platform 26 to enable them to be each loaded with a potato from containers 12 by operators standing on platform 11. As the conveyer moves downwardly the trays are maintained level by contact with an inclined rail section 27 and a pin 30 on each tray contacts a cross-bar 31 to sharply tip each tray to deposit each potato in a furrow formed by a shoe or coulter 43 the potatoes being covered with soil by means of discs 45, 46. As shown the machine is attachable to the three point linkage of a tractor and the chain conveyers are driven by gearing from landwheels 7. Alternatively the machine may be driven from the tractor power shaft.
Patent GB-1011040-A (GB)
Title: Substituted bis-(aryloxy-acetyl)-piperazines
Filed: 1963-09-11
Abstract: The invention comprises piperazine derivatives of general formula <FORM:1011040/C2/1> wherein Ar is an aryl radical substituted by an allkoxy radical and alkyl or alkenyl radical, and the preparation thereof by reaction of a functional derivative of an appropriately substituted aryl glycolic acid with piperazine or an acid addition salt thereof.  2 - Methoxy - 4 - allyl - phenoxyacetyl chloride is prepared by treating 2-methoxy-4-allyl-phenoxyacetic acid with thionyl chloride.  Pharmaceutical compositions, comprising a compound of the above formula an acceptable carrier, have analgesic activity when administered interperitoneally or orally.  They may be in the form of powders, solutions, suspensions, tablets which may be coated and/or scored, granules, unit dose or multi-dose phials contain sterile solution for injection and extemporaneous injection solutions prepared from dry sterile formulation.
Patent GB-1061811-A (GB)
Title: Improvements in or relating to the manufacture of flat glass
IPC: C03C21/00
Filed: 1962-09-20
Abstract: In a method of manufacturing flat glass during which the glass in ribbon form is supported on a bath of molten metal over which a plenum of protective atmosphere is maintained, that part of the molten metal which is exposed, particularly at the outlet end of the bath, is additionally protected against contamination by a covering of sodium chloride, potassium chloride, or an equimolecular eutectic mixture of the two.  The mixture may be either molten or in solid form, and must be solid at the outlet and where the temperature is about 600 DEG  C. The coating of material is preferably about 4 mm. thick.
Patent GB-855341-A (GB)
Title: Improvements relating to carbon-arc lanterns
Inventor: MOIR JAMES
IPC: H05B31/00
Filed: 1955-12-14
Abstract: 855,341. Arc lamps. BRITISH THOMSONHOUSTON CO. Ltd. March 6, 1957 [Dec. 14, 1955], No. 35908/55. Class 39(1). A carbon arc lamp comprises a reflector, an auxiliary electrode of gauze arranged to pass current through the tail-flame of the arc and means for producing a magnetic field laterally of the tail-flame to deflect the current-carrying tail-flame away from the reflector. The auxiliary gauze electrode can be made of "Inconel" (Registered Trade Mark), is mounted above the tail-flame in a position to touch the flame and is large enough to ensure contact with the tailflame after the tail-flame has been deflected. The magnetic field can be supplied by a permanent magnet or an electro-magnet. The voltage supplied to the auxiliary electrode can be derived from the voltage applied to the arc or otherwise. The auxiliary electrode can be retractably mounted so as to be capable of contacting the small initial tail-flame produced when the arc is initially struck and of being withdrawn outside the light cone of the lamp for normal operation.
Patent GB-1462751-A (GB)
Title: Recovering material
IPC: C22B7/00
Filed: 1972-08-02
Abstract: 1462751 Recovering scrap materials  GLACIER METAL CO Ltd 1 Nov 1973 [2 Aug 1972] 35982/72 Heading C7D A method of recovering at least one component from scrap material having different metals in different layers includes the steps of heating the material, then transferring it to partially fill a container having means for automatically giving repeated shocks to the material, then removing and separating the components, the heating causing differential expansion of the components causing initial weakening of the bond(s) between them. Preferably Al/Sn alloy, or Pt alloy as bearing material supported by steel sheet is heated and fed to a container 11 having paddles 12 whose blades 13 strike pieces of the coated steel sheet and cause the pieces to strike each other. A belt 14 removes the components to a magnetic separator. Alternatively the scrap may be agitated by vibrating the container, optionally in two different directions, and the scrap may be fed into a tunnel to be heated and agitated simultaneously. Heavy balls may be introduced into the container to improve separation. When either or each component is non- magnetic a seive may be used for separation.
Patent GB-1044689-A (GB)
Title: Improvements in or relating to mountings for semi-conductor devices
Inventor: SANDBANK CARL PETER
IPC: H01B1/00
Filed: 1962-09-21
Abstract: 1,044,689. Semi-conductor devices; circuit assemblies. STANDARD TELEPHONES & CABLES Ltd. Sept. 20, 1963 [Sept. 21, 1962], No. 36013/62. Headings H1K and H1R. A semi-conductor wafer, containing at least one active circuit element and having terminals at one surface, is mounted in a recess in one face of an insulating plate and covered with insulating material. The terminals are then reexposed and connected to terminals on the plate by thin metal films deposited on the insulating material. A typical embodiment is shown in Fig. 1. The terminals 4 on the plate are formed by photolithographic techniques from a vapour deposited metal layer which may be a laminate of gold and chromium. Suitable materials for covering the semi-conductor wafer are glass, silicon dioxide and resins. Holes are etched therein by photolithographic techniques to expose terminals a to k and the interconnecting strips 7 consisting of aluminium or a goldchromium laminate formed by vacuum evaporation. They may later be reinforced by electroless plating. Similar strips may be used to interconnect selected contacts on the wafer or on different wafers when several wafers are mounted in recesses in a common insulating plate. In an alternative method gold balls are bonded to the wafer terminals before the insulating material is applied in which case they are subsequently re-exposed by grinding down the insulating material. The insulating plate may have other components formed on it e.g. the resistance 8 and capacitor 9 shown.
Patent GB-1527420-A (GB)
Title: Constructional toys
IPC: A63H33/08
Filed: 1977-08-05
Abstract: 1527420 Toy construction kits E M STEPHENSON 5 Aug 1977 [31 Aug 1976] 36032/76 Heading A6S A toy construction kit contains a number of T-shaped building blocks each having opposed arms 6, 8 with recesses 10 or projections at their ends and a leg 4 with complementary projections 12 or recesses along its sides, so that a flat-sided wall can be assembled from the blocks, Fig. 8 (not shown). Base blocks 32, Fig. 2, have opposed arms 34, 36 longer by half the width of the leg 4 than the arms 6, 8. Corner blocks 38, Fig. 3, and base corner blocks 40, Fig. 4, have studs 42 at their tops to engage complimentary recesses (not shown) in their bases. T-junctions between walls are formed using blocks 44, 46, Fig. 5, 6. A block 48, Fig. 7, having a flat end is used to abut window elements, &c., Fig. 9 (not shown). The blocks may be hollow, and made of a plastics. The blocks may be sold in a kit including toy battering rams, catapults, cannons, &c.
Patent GB-801684-A (GB)
Title: Column shift device for an electronic digital computer
Filed: 1954-12-14
Abstract: 801,684. Digital electric calculating apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 14, 1954 [Dec. 17, 1953], No. 36137/54. Class 106 (1). An electronic digital computer having column shift apparatus comprises first and second magnetic storage tracks (1, 2, Fig. 1, on a magnetic drum), each having associated input and output means, a first link adapted to convey data from the output of the first storage track to the input of the second storage track (via a tapped delay line and a switching unit), a second link adapted to feed back data from the output of the first storage track to the input thereof (via the whole length of the tapped delay line) a third link adapted to feed back data from the output of the second storage track to the input thereof (via an adder), and time delay means (the tapped delay line and switching unit) including a plurality of time delay elements for introducing a variable number of time delay increments into one of said links (the said first link). The machine described employs a sevenbit bi-quinary decimal code, each number being stored on seven parallel channels on a drum, the seven channels being referred to collectively as a track, and uses the adder described in Specification 800,273. The tapped delay line consists of twenty-eight unit delays of the kind described in Specification 756,285, four for each channel, and can introduce a delay of up to four digits. The switching unit comprises gates of the kind described in Specification 741,595. As described the " zero " position of track 1 is two digits ahead of that of track 2 so that relative to track 2 the contents of track 1 can be shifted up to two digits either backwards or forwards. In a second embodiment (Fig. 2, not shown), described in general terms only, the variable delay occurs not in the said first link but in the said second link. Specification 710,554, [Group XL (c)], also is referred to.
Patent GB-1025278-A (GB)
Title: Electric amplifier
IPC: H03F3/32
Filed: 1963-09-13
Abstract: 1,025,278. Valve amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. Sept. 13, 1963 [Sept. 20, 1962; Sept. 27, 1962], No. 36174/63. Heading H3W. The efficiency of a class B amplifier is increased by adding to the D.C. anode supply of the valve a suitably phased A.C. component of twice the frequency of the grid drive: in the case of a tetrode amplifier, the additional A.C. term is applied to the screen grid as well. Steps are taken to prevent the harmonic component appearing in the output. In one embodiment valve RO 1  (Fig. 2, not shown) has an anode circuit tuned to the signal frequency, across which is placed the load R. The lead to the H.T. supply is tapped into a further circuit tuned to second harmonic frequency and forming the anode load of an auxiliary valve R02 which is driven at the latter frequency: a coil Sp coupled to the further circuit drives the screen-grid of the valve RO 1  at second harmonic frequency. In a second embodiment, comprising a pair of valves RO1, RO2 (Fig. 3, not shown) driven in push-pull, the auxiliary valve RO3 supplying the anode A.C. drive via transformer Tr3 is driven by means of a pair of rectifiers G1, G2 connected to the grids of valves RO1, RO2 respectively; alternatively a pair of auxiliary valves RO3a, RO3b (Fig. 4, not shown) may be used, their grids being connected to the grids of valves RO1, R02 respectively and their anodes together. The Specification also discloses a carrier frequency amplifier modulated from a low frequency amplifier, both belong in accordance with the invention (Fig. 5, not shown).
Patent GB-333126-A (GB)
Title: Improvements in, or relating to, sanitary refuse bins
IPC: B65F1/14
Filed: 1929-11-26
Abstract: 333,126. Broadbent, T., and Rutherford, J. E. Nov. 26, 1929. Refuse-bins. - A refuse bin a is mounted by means of trunnions b on brackets e which are provided with elongated and cambered slots or grooves h so formed as to provide bearings for the trunnions in two different positions of the bin. The normal position of the bin is as shown in Fig. 1; it can be drawn forward by means of a handle o so that the trunnions pass over the rise l and rest in bearings j. The bin is now clear of the wall f and can be tilted for the purpose of emptying. An alternative arrangement in which the bin is situated in a recess in the wall is shown in Fig. 4; in this case the bin may not be provided with a cover, but a door or flap may be hung from the lintel t.
Patent GB-974534-A (GB)
Title: Process for treating foamable plastic segments and apparatus useful therein
IPC: B29C44/34
Filed: 1962-09-24
Abstract: <PICT:0974534/C3/1> Foamable plastic segments are annealed by complete immersion in hot water. The segments are produced by cooling and cutting an extruded mixture of a thermo-plastic and a blowing agent. The temperature of annealing should be 50-90 DEG C. In a particular embodiment the segments, 43 from a cutter (not shown) are washed into rectangular tank 12 at its left end. They are moved along the tank by the cleats, 18, attached to belt, 14, which is driven by motor 32 through speed control 34 and reduction gear 36. At the right hand end the segments leave by spillway 17 which also ensures the liquid is maintained at a constant head. The belt assembly can be removed for cleaning.
Patent GB-950017-A (GB)
Title: Apparatus for carrying persons
IPC: A61G7/10
Filed: 1961-10-12
Abstract: 950,017. Invalid lifting devices; slings for lifting persons. J. P. BAKKER. Oct. 12, 1961 [Oct. 15, 1960], No. 36618/61. Heading B8H. A lifting device for invalids comprises a backsupporting band 41 and a thigh support 48 connected to a block 27 which is pivoted to a luffing arm 24 and which is maintained in a vertical position by a pivoted link 28. The arm 24 and link 28 are pivoted at 25, 29 to a hollow column 15 mounted on a platform 3 and are luffed by an hydraulic ram 31 controlled by hand levers 34, 35. Straddle legs 8, 9 are pivotally connected to legs 4, 5 pivoted to the plarform 3 at 6, 7 and are supported by castors 2 which are maintained with their pivotal axes vertical by links 12, 13 pivoted between arms 10, 11, secured to the legs 8, 9, and the pivots 6, 7 on the platform 3. Members 19, 20, pivoted to the legs 4, 5 at 21, 22 are pivoted to a rod 18 which is slidable within the column 15 and which is secured to a nut (not shown) non- rotatably mounted on a screw-shaft 16 whereby rotation of the shaft 16 by a handle 17 causes the distance between the straddle legs 8, 9 to vary. The back-supporting band 41 is connected by members 42 to an arm 40 secured to the block 27. The thigh support 48 is secured to a tubular member 46 which is pivoted about a shaft 45 on a member 43 detachably secured to the block 27. The member 46 may be locked to the shaft 45 by a locking device 49. A knee support 51 is secured to the shaft 45. Specification 820,497 is referred to.
Patent GB-852504-A (GB)
Title: Improvements in or relating to cartons
Inventor: GAUNT THOMAS NORMAN
IPC: B65D5/06
Filed: 1955-12-21
Abstract: 852,504. Cartons. WADDINGTON Ltd., J. March 19, 1957 [Dec. 21, 1955], No. 36663/55. Class 18. A flat bottom closure for a "peak-roof" carton is formed by pressing inwards opposite closure portions to form bellows folds lying between the remaining closure portions, one of which 15, is doubled on itself on a line 28 and the other of which 23 forms the outer closure portion and is sealed to the bottom. The part 23 may be extended for securing to the adjacent side wall of the carton. The carton blank is coated internally with thermoplastic adhesive and has a longitudinal seam as described in Specification 648,419. Specifications 508,793 and 676,531 also are referred to. Reference has been directed by the Comptroller to Specification 648,419.