baber/WOPTO huggingface dataset:
Patent GB-689803-A (GB)
Title: Apparatus for measuring the exponential coefficient of a growth or decay function
Inventor: BURNUP THOMAS ELLIOTT
IPC: G21C7/36
Filed: 1950-11-24
Abstract: 689,803. Electric analogue calculating systems. MINISTER OF SUPPLY. Feb. 25, 1952 [Nov. 24, 1950], No. 28770/50. Class 37. [Also in Group XL (b)] In apparatus for determining the coefficient Œk of the exponent Œkx of the exponential function y=AeŒ<SP>kx</SP>, a variable electrical quantity analogous to the function operates a nullseeking retroactive servomotor system to produce a displacement proportional to the variable quantity, which adjusts a resistance in accordance therewith; the servomotor also driving a generator whose output, proportional to the rate of change of the displacement, is connected in series with the variable resistance to an indicating or recording instrument which registers the required coefficient. An ionization chamber 1 receives nucleonic radiation from a radioactive source or an atomic pile and is in series with battery B and the input of amplifier 3, whose output energizes motor 4 to adjust potentiometer 7 through gearing 6 to apply are. balancing voltage to the amplifier input through resistance 2. The servomotor also adjusts resistance 8 proportionately to the instantaneous output of the ionization chamber and drives generator 5, whose output is proportional to the rate of change of the ionization chamber output and energizes indicating/recording ammeter 10 through resistance 8, to register the value which is the decay or growth constant of the radiation source.
Patent GB-897300-A (GB)
Title: Improvements in or relating to sequence switching arrangements for use in an inductive heating system
IPC: H05B6/02
Filed: 1958-09-09
Abstract: 897,300. Switching systems for inductive heating apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 9, 1958 [Sept. 12, 1957], No. 28876/58. Class 38 (4). [Also in Group XI] A switching system for use with an inductive heating system to carry out a series of operations on a longitudinal workpiece, whereby the inductor, workpiece and quenching device are arranged coaxially, comprises a stepping switch 18 operated by a magnet 34 which is initially energized by a foot switch 33, and subsequently by a series of stops, operating contacts, e.g. 8, in sequence with the movement of the work slide. By connecting the contacts 24a-24f and 24k- 24p to a series of perforated vertical bus-bars and similarly connecting a series of relays to perforated horizontal bus-bars insulated from the vertical bars, the bars being arranged so that at each crossing-point the perforations are coincident, an operating sequence controlled by the relays may be set up by means of conductive pegs, each peg bridging two bars. By means of a template having only those holes corresponding to a desired sequence, the pegs may be rapidly and accurately set up for any sequence desired.
Patent GB-805759-A (GB)
Title: Improvements relating to machinery control devices
Inventor: BROWN JAMES
IPC: G05D13/04
Filed: 1955-10-11
Abstract: 805,759. Automatic speed control systems. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Oct. 2, 1956 [Oct. 11, 1955], No. 28906/55. Class 38 (4). [Also in Groups XXVI and XXXVII] A machinery control device comprises a strut 1, means operable at a predetermined operational condition of the machinery to apply a load substantially longitudinally of the strut and of sufficient strength to cause a buckling movement of the strut and machinery control or indicating means actuated by an effective shortening of the strut resultant upon the buckling. Fig. 1 indicates a gas turbine plant overspeed trip arrangement in which the strut 1 is secured at one end to a fixed mounting 11 and at its other end to a movable mounting formed by the end 9 of the sleeve 7 of a centrifugal governor driven by a shaft 2 coupled to the gas turbine shaft. The governor comprises flyweights 8 acting through bell-cranks 5 on the sleeve 7 whose end 9 is slidably mounted in a guide cylinder 10 and carries a contact 12 adapted when the governor load at a predetermined speed reaches the strut buckling load to contact a spring-loaded contact 13 and energize an electric motor 18 to close a fuel control valve 19 to the combustion chamber 3, the turbine thereby being stopped. Stops 27 prevent the strut being permanently buckled. In an alternative arrangement the turbine speed is only reduced to the required operating speed, the strut then returning to its unbuckled condition. In the arrangement shown in Fig. 2, to protect against engine overheating the buckling of the strut 1 is caused by thermal bowing of a bimetallic strip 20 placed in the part of the engine concerned. The movement of the strip 20 is magnified by levers 21, 22 and buckling of the strut causes the motor 18 to either reduce or cut off the supply of fuel to the combustion chamber 26. Specification 806,603, [Group XL (b)], is referred to.
Patent GB-1363883-A (GB)
Title: Manufacture of combustion engine exhaust systems comprising ex haust pipes with silencer boxes and tail pipes
IPC: B21C37/15
Filed: 1971-06-21
Abstract: 1363883 Making exhaust systems SPIRALO HOLDING AG 21 June 1971 [25 June 1970] 28916/71 Heading B3A An exhaust pipe, silencer box and tail pipe are formed from helically seamed tubing which is made from strip profiled to give the tubing at least one helical ridge the diameter of the silencer box portion of tubing being diminished smoothly at each end for the transition to the exhaust and tail pipes. The strip from which the tubing is formed preferably has two ridges and adjacent strip turns 11, 13, are overlapped to make a gas tight helical seam (12), Fig. 3 (not shown). The box and pipes may be formed from  a single strip or as separate units which can be connected by using the helical ridge(s) as screw threads. The silencer box may comprise two parts screwed to each other and with a pair of perforated pipes screwed within them. The box is pressed to oval form to make its smaller crosssection equal to the diameter of the exhaust pipe.
Patent GB-1318705-A (GB)
Title: Contract bridge simulator
IPC: A63F9/00
Filed: 1970-06-15
Abstract: 1318705 Playing bridge I G CORN Jnr 15 June 1970 [19 June 1969] 28948/70 Heading A6H Apparatus for simulation of bidding and playing of a four sided card game such as bridge comprises a roll 36 bearing indicia and which is movable below a plate 46 so that sequences of bids and plays are revealed through openings 56, 58, 60, 62 in response to movement of the sheet, the plays and bids shown in openings 56, 58 relating to the south and north hands respectively and the plays and bids shown in openings 60, 62 relating to the west and east hands respectively. Openings 48a 48b all provided for revealing to the user the cards in his hand, the south hand and openings 52a 52b reveal the north or dummy hand. Openings 74a 74b display information correlating the position of the roll 36 to an explanatory roll giving material explaining the moves of the game. The explanatory roll may be mounted in a separate casing or it may be incorporated in the rear of the casing of the roll 36. The explanatory roll may be replaced by audio tapes or discs. The plate 46 may be provided with a circular rotatable disc which is mounted over the openings 56, 58, 60, 62 and provided with openings so that as the disc is rotated each bid is revealed in sequence.
Patent GB-1114535-A (GB)
Title: Improvements in or relating to ion detection devices for mass spectrometers
IPC: H01J49/02
Filed: 1966-06-28
Abstract: 1,114,535. Mass spectrometers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 June, 1966 [1 July, 1965], No. 28953/66. Heading H1D. An ion detection device for a mass spectrometer comprises an accelerator, including, for example, electrodes 3, 4, 5, for the ion beam 2 emerging from the output aperture of the spectrometer, a target 12 of stainless steel for instance arranged in the ion path which emits secondary electrons by ion bombardment, a scintillator 14 and photomultiplier 17 outside the spectrometer envelope and deflecting means such as plates 18 to deflect the beam from the target when the ion current exceeds a critical non zero value thereby preventing phosphorescence or possible damage to the scintillator and variations in the properties of the photo-multiplier by overloading. Preferably voltage steps of substantially equal magnitude] but opposite polarities are applied to plates 18 when deflection is required, thereby ensuring minimum effect of the applied potentials on other parts of the system. In an embodiment, negative voltages (relative to the stainless steel wall 1) are applied to electrodes 7 and 8 to prevent secondary electron emission from grid 9, the latter being connected to D.C. amplifier 10, which controls the output of pulse generator 20. Hence the ion current, which may be divided equally between grid 9 and beam 11, becomes too large (e.g. above 10<SP>-13</SP>A) the pulse from 20 applied to plates 18 causes the beam to be deflected.
Patent GB-693775-A (GB)
Title: Method and apparatus for purifying air contaminated by acid or nitrous impurities
IPC: B01D47/02
Filed: 1950-11-27
Abstract: Acid and nitrous impurities are removed from air by passing the contaminated air through a basic liquid in such a way that it is charged with basic material as a mist or gas, then through a layer of surface catalyst able to accelerate the oxidation of nitric oxide and the reaction of acids with a base, and finally through another water-irrigated layer of the surface catalyst.  The catalyst may be carbon, pumice, burnt porous clay, asbestos, or diatomaceous earth or mixture thereof which may be impregnated with compounds of Fe, Ni, Co, Al, Ti, Zr, Pb, Sr, Sb, Cd, Cu, Bi p  or other metals with catalytic properties.
Patent GB-994694-A (GB)
Title: Plug valve
IPC: F16K5/20
Filed: 1961-08-11
Abstract: 994,694. Valves. CHEMETRON CORPORATION. Aug. 11, 1961 [Aug. 25, 1960], No. 29119/61. Heading F2V. A spherical ball valve is provided with seating rings, slidable in a tapered housing and adjustable from outside the valve. As shown in Fig. 1, the ball 14 is rotatable in a housing having tapered sides which receive seating rings. Each ring comprises a retaining element 51 for receiving a suitable resilient seal 50, whose width at any point is greater than the corresponding width of the element 51. The rings are carried by projections 60 of an element 61 which is screwed on to a nut 23 surrounding the valve spindle 31. The nut can be rotated from the outside through an hexagonal part 24 to move the rings axially, and hence the plug, to adjust the sealing. In a modification, Fig. 3, a resilient 0-ring seal 90 is provided, carried by a retainer 91 which is adjustable by rotation of a bonnet 70. In this case, the faces of the plug from which the through bore extends are also tapered. The plug and rings may be moved through the top of the body. A drain plug 15 may be provided. The form of valve shown in Fig. 3 is suitable to be made from rigid plastic material.
Patent GB-1373598-A (GB)
Title: Electro-optical digital position indicators
IPC: G01D5/36
Filed: 1972-06-21
Abstract: 1373598 Measuring displacement OPTOGRAMS Inc 21 June 1972 [4 Aug 1971] 29148/72 Heading G1A [Also in Division G4 An electro-optical digital displacement encoder uses either a stretched tape and roller or a lead screw and nut to rotate the encoder disc. Linear displacements are measured by counting pulses generated by the interuption of a light beam by radial lines on the encoder disc. In an embodiment (Fig. 10) the ends of the tape, which may be metal or plastics are attached to fixing blocks 128, 129 and the tape passes over rollers 131, 142 and runs around guide rollers 63, 64 and measuring roller 62. One end roller 131 is fixedly mounted and the other 142 on a sliding mount, the tape being tensioned by spring 53 and means (not shown) are provided to lock the sliding mount during measurement. The tape is wiped by wipers 152, 153, 154, 155 and is further protected by bellows 66a 66b. Roller 62 carries encoder disc 76 and the light pulses passing through the encoder during relative movement between base 42 encoder mounting 130 are picked up at 96. In a first alternative embodiment, the tape is not doubled up but is aligned at one end and mounted on a tensioning spring at the other; a similar encoder arrangement being utilized. Other embodiments use a coarse pitch lead screw and a nut. As shown (Fig. 13) the nut (15) is clamped and the screw (204) free to rotate and drive encoder disc 76. Alternatively the screw may be clamped and the nut rotate and drive the encoder disc. An alternative form of sealing to the bellows is also described.
Patent GB-898905-A (GB)
Title: Improvements relating to electrically heated floors, walls, ceilings, and the like
IPC: F24D13/02
Filed: 1958-09-12
Abstract: 898,905. Electrically heated panels. GREER, P. H., and UNIDARE Ltd. Sept. 12, 1958 [Sept. 17, 1957], No. 29287/58. Addition to 864,655 as improved upon by 864,656. Class 39(3) In or for a floor, wall, ceiling and the like, a heating panel comprises a resistance wire 3 passing loosely through flexible tubing 4 preferably of P.V.C., the internal diameter of the tubing being approximately three times that of the wire 3, and the thickness of the tubing being approximately equal the internal diameter of the tubing; the wire may be nickel-chromium or chromium-iron-aluminium. The heating element is ih the form of a grid of which portions 4b project along one lateral side of the panel. Portions 4a lie between two preformed plaster board laminae 1, 2 and are embedded in plaster 7. A deflector 8, e.g. aluminium foil, is located where shown or between one of the boards 1, 2 and the plaster. Additionally, the board from which maximum radiation is desired may have a relatively high co-efficient of heat conduction and the board on the opposite side may have good insulating properties. A number of panels may be assembled together by means of troughing having channels which receive the edges of the panels and which have apertures 10 to allow the portions 46 of the heating element to project into the trough interior. Holes 16 facilitate the attachment of brackets or ties, and a cover plate 13 is secured by screws (not shown). In forming a ceiling, Fig. 6, the troughing is secured to the joists 18 by ties 17, and is preferably filled with soft plaster before attaching the cover plate 13 which may carry electric light pendants 21. A screed of plaster 20 is finally applied. In a modification, Fig. 7, the cover plate 13 is carried on a partition 22 and is spaced from the trough so as to leave a space through which the heating element portions 4b may project. The trough is secured to stringers 23 between joists 18 to which the panels are nailed. In repairing a fault in the element, the filling material in the trough is broken out and a new piece of resistance wire threaded through the insulating tubing in place of the faulty section of wire.
Patent GB-842303-A (GB)
Title: Improvements in or relating to 19-nortestosterones
IPC: C07J9/00
Filed: 1958-09-12
Abstract: The invention comprises 19-nortestosterones of the general formula <FORM:0842303/IV(b)/1> wherein R represents an alkyl group containing 2 to 6 carbon atoms.  The compounds may be prepared by isomerising the required 1-methyl-3-oxo-17 a -alkyl-5(10)-estren-17-ol under the influence of a proton transfer agent which may be alkaline as in the case of sodium hydroxide in aqueous methanol, or acidic as in the case of hydrochloric acid used in aqueous methanol, or by reducing the required 1-methyl-17-alkenyl-19-nortestosterone with hydrogen in the presence of a noble metal catalyst such as palladium or a reduction catalyst such as Raney nickel.  In the examples:-(1) 17 a -ethyl-1-methyl-19-nortestosterone is prepared by treating 1-methylestrone-3-methyl ether with acetylene in the presence of diethylene glycol dimethyl ether, diethylene glycol monoethyl ether and potassium hydroxide to form 17 a -ethynyl-1-methyl-estrodiol 3-methyl ether, hydrogenating this compound to form 17 a -ethyl-1-methyl-estradiol-3-methyl ether, treating this compound with liquid ammonia and lithium to form 17-ethyl-1-methyl-3-methoxy-2,5(10)-estradien-17-ol, and finally treating this compound with hydrochloric acid in methanol; (2) 1-methyl-17-propyl-19-nortestostrene is prepared by treating 1-methylestrone-3-methyl ether with allyl magnesium bromide to form 1-methyl-3 - methoxy 17 a  - allyl -1,3,5(10) - estratrien -17 - ol, hydrogenating this compound to form 1-methyl - 3 - methoxy -17 a  - propyl - 1,3,5(10) - estratrien-17-ol, treating this compound with ammonia and liquid ammonia to form 17 a -propyl - 3 - methoxy 2,5(10) - estradien - 17 - ol and finally treating this compound with hydrochloric acid in methanol; and (3) 1-methyl-17-butyl-19-nortestosterone is prepared by treating 1-methylestrone-3-methyl ether with butyl lithium to form 1 - methyl - 3 - methoxt - 17 a  - butyl - 1,3,5(10) estratrien-17b -ol, treating this compound with lithium and liquid ammonia to form 1-methyl 17 a  - propyl - 3 - methoxy - 2,5(10) - estradien - 17-ol, and finally treating this compound with hydrochloric acid in methanol.  Specification 789,065 is referred to.
Patent GB-741825-A (GB)
Title: Improvements in or relating to water taps and cocks
Inventor: RATTLIDGE FRANK EDWIN
IPC: F16K27/12
Filed: 1952-11-20
Abstract: 741,825. Protective covers for taps. EVERED & CO., Ltd. Feb. 22, 1954 [Nov. 20, 1952], No. 29305/52. Class 135. A shroud for a water tap making the chromium-plating of the tap body unnecessary comprises two plastic, e.g. cellulose acetate or polystyrene, pressed or moulded parts 15, Fig. 3, divided about a mid-longitudinal plane of the tap body 14. The upper faces of the parts at their abutting surfaces are formed with ribs 15d, 15e over which, when the parts are assembled on the tap body, fit U-shaped clips 17 having semi-circular parts 17b, Fig. 8, embracing the body and hook-like lips 17c fitting in recesses 15i, 15k in the parts 15. The clips may be made of brass, stainless steel, or nylon. The usual dome or cover 18 of the valve holds the clips 17 in position. The dome together with the knob 19 may also be made of cellulose acetate or polystyrene. The invention may also be applied to pillar and globe type taps.
Patent GB-715944-A (GB)
Title: Improvements in junction boxes for electric conductors
Inventor: HUNT JOSEPH JAMES HOLMES
IPC: H02G3/12
Filed: 1950-11-30
Abstract: 715,944. Junction boxes. SIMPLEX ELECTRIC CO., Ltd. Nov. 28, 1951, [Nov. 30, 1950.] No. 29310/50. Class 38(1). A junction box having an opening in the base adapted to register with an opening in a cable duct to which the box is secured whereby leads from the duct may be brought out through the box in angularly spaced directions, comprises a pair of U-shape clamping members 18 situated around the opening 12 in the box base 11 so that tightening of the screws 24 clamps the box 10 to the peripheral portion 23 of the opening in the upper wall of the cable duct 15. The leads are brought out through conduits 14. Earthing continuity between the box 10 and cable duct 15 is ensured by a pointed screw 26; alternatively, the box base i may be formed with an integral projecting stud. The box cover comprises an outer annular part 30 supporting an inner part 33, the part 30 having a channel 31 receiving the side wall of the box and adjustable relatively thereto by the heads of screws 34. threaded in bosses 35 on the base 11. The cover parts 30, 33 are arranged to be flush with a concrete floor 38, the concrete retaining the part 30 in position. The cavity in the part 33 is also filled with concrete 37. The cover part 33 is releasably secured to the box 10 by screws 39 passing freely through apertures in the parts 30, 33 and engaging tapped bosses 41 on the base 11. In a modification (Fig. 4, not shown) the cover part 30 lies wholly beneath the floor surface, the outer wall of the inner part 33 extending above the part 30 and being flush with the floor.
Patent GB-1122130-A (GB)
Title: Tool for arranging a group of leads of an integrated circuit element to facilitate mounting
IPC: H01J9/28
Filed: 1967-06-26
Abstract: 1,122,130. Bending wire. JAEGER MACHINE CO. 26 June, 1967 [3 May, 1967], No. 29356/67. Heading B3E. A tool for re-arranging the leads of a circuit element 10 which has the leads extending therefrom in a group of a pre-determined pattern comprising a mandrel 14 having an end for insertion into the group and having a pre-determined lead-forming contour, spacing means on the mandrel for receiving and holding the leads of the group with a pre-determined angular spacing, and a forming member adapted to be moved axially on to the mandrel to engage the spaced leads and bend them to the contour of the mandrel. The central part 16 of the mandrel is of a diameter to slide into a sleeve 15 the bore of which has a chamfer 26 at one end. The mandrel has a reduced diameter portion 18 and a frusto-conical end section 20 on which is mounted, either permanently or removably a serrated guide member 22. The other end of the mandrel has a frusto-conical portion 17. The element 10 is an integrated circuit and has a group of projecting leads 13. The guide 22 is inserted between the leads and causes them to splay outwards. The sleeve is then passed over the body of the element and pushed over the reduced diameter section so that the leads are bent to lay along the surface of the section 18. The end 17 of the mandrel may be used for a preliminary bending operation to open the leads out.
Patent GB-235472-A (GB)
Title: Improvements in wire straps and seals for boxes, bales, and other articles
IPC: B65D63/12
Filed: 1924-12-08
Abstract: 235,472. Power, E. A. Dec. 8, 1924. Seals.-Relates to bale ties or wire straps in which one end of the wire is formed into a helix in which the other end is inserted. According to the invention, a close helix is formed to receive the free end of the wire, which is threaded through and secured by cranking, coiling, &c. As shown, one end is formed into a close helix a the internal diameter of which will accommodate both ends b, c of the tie, and the free end is cranked into a hook d, or is kinked, flattened or coiled about the end b.
Patent GB-1049684-A (GB)
Title: Reclosable carton
Inventor: BYRNE WILLIAM ALFRED
IPC: B65D5/70
Filed: 1964-07-21
Abstract: 1,049,684. Cartons. MARDON, SON & HALL Ltd. Oct. 13, 1965 [July 21, 1964], No. 29421/64. Heading B8P. A carton comprises a panel 3 containing a removable portion 14 and a flap 9 having a pull tab 13 attached to a tear strip 12. The flaps 5-9 are glued together leaving the tab 13 free and the tear strip 12 covers the portion 14 defined by slits 15, 16, 17 and a score line 18. When the tab 13 is pulled upwards, the portion 14 is removed disclosing a hole 20, Fig. 3 (not shown), whilst portions 22, 23 of flap 9 remain glued to panel 3. The tear strip 12, which hinges along a line 21, is used to reseal the carton by inserting the tab 13 in the hole 20. In a modification, Fig. 4 (not shown), an additional pull tab 24 is attached to the tear strip by short hinged connections and portions 14, 25 are torn to form an opening. The original carton may contain holes such as 20 so that the portions 14, 25 may be dispensed with and the carton may be block bottomed.