baber/WOPTO huggingface dataset:
Patent GB-1268857-A (GB)
Title: Method and apparatus for the manufacture of two annular bodies fitting one within the other
IPC: B21D28/30
Filed: 1969-08-19
Abstract: 1,268,857. Punching. F. B. HATEBUR A.G. 19 Aug., 1969 [22 Aug., 1968], No. 41266/69. Heading B3W. To form two annular members capable of fitting one within the other from a blank 1 consisting of a cup shaped inner part 4 integral with and axially displaced from an annular outer part 2 a punch 10 mounted on a reciprocable slide (not shown) and having a perforating punch 11 axially displaceable relative thereto is inserted in the blank 1 and moves the part 4 into an outer die 17. The end wall 5 of the part 4 engages an inner die 20 and the annular outer part 2 engages the die 17. As the punch 10 is advanced, the inner die is moved away from it by means of a rod 22 urged into contact with a cam-operated bellcrank lever 23 by a spring 26 and the punch co-operates with the outer die 17 to separate the outer and inner parts 2, 4. The perforating punch 11 is then advanced by means of a cam-operated bellcrank lever 12 by an amount "b" and co-operates with the inner die 20 held stationary against a disc 21 to punch out the end wall 5 of the part 4 which drops through a waste discharge 28 formed in die-locating sleeves 16 and 19 and in the die 20. The punch slide is then retracted and the annular part 2 is stripped from the punch by a fixed stripper plate 27. The annular part 4 is ejected by the return movement of the inner die 20 and a spring 40 retracts the perforating punch 11 with the punch 10. In an alternative embodiment, Figs. 6 and 7 (not shown), the punches 10 and 11 are replaced by an integral stepped punch 29 and the end wall 5 of the inner part 4 is punched out before the parts 2 and 4 are separated from each other. The inner part is ejected from the die assembly by the return movement of the inner die 20 and simultaneously the stepped punch 29 is retracted and ejector pins (31) passing through the punch are extended by means of the cam operated bellcrank lever 12 to strip the part 4 from the punch.
Patent GB-1368979-A (GB)
Title: Electrical switch
IPC: H01P1/00
Filed: 1971-12-23
Abstract: 1368979 Mechanical switches TEKTRONIX Inc 23 Dec 1971 [10 Feb 1971] 41291/73 Divided out of 1368977 Heading H1N A moveable spring blade contact 96, Fig. 7, for an electric switch comprises a pair of parallel leg portions 112, 114 for bridging fixed contacts 92, 94 and each being bifurcated to provide two contact points on each fixed contact 92, 94. In the example multiple in-line sets of contact assemblies 18, 20, Fig. 6, are actuated by a rotary cam 26 having projections 28 at selected angles spaced along its length and rotatable by a knob (38), Fig. 2 (not shown), for selective actuation of the contact sets 18, 20. Each assembly comprises fixed contacts 92, 94 above or below a printed cicuit board 54 to which the cam 26 is attached for controlling the movements of insulating carriers 100, 102 for the contacts 96. Each carrier 100, 102 is supported by a spring blade 98 riveted to the printed circuit board 54, the lower carrier 100 having a projection 104 directly engaged by the cam 26 for closure of the lower contact pairs 92, 94. The upper carrier 102 has a tappet-like projection 106 extending through an aperture 108 in the board 54 whereby the upper contact 96 is moved upwards from its normally closed position (shown) when the lower contact 96 is moved from its normally open position. The fixed contacts 92, 94 are staggered laterally to reduce the capacitance between the two. The assembly is used for selectively closing the circuits through a number of serially arranged attenuators (10, 12, 14, 16), Fig. 2 (not shown), as described in the parent Specificationl, 368,977. Additional sets of switches may be actuated by a lever (40), Fig. 2 (not shown), on a hollow spindle surrounding the spindle carrying the cam 26 and carrying a further cam (30).
Patent GB-1155715-A (GB)
Title: Improvements in or relating to Band-Pass Filters
IPC: H03H1/02
Filed: 1966-09-16
Abstract: 1,155,715. Circuit assemblies. SIEMENS A.G. 16 Sept., 1966 [17 Sept., 1965], No 41388/66. Heading H1R. [Also in Division H3] In a band-pass filter of the kind comprising a wideband amplifier having negative feedback via an R-C band-stop filter network with at least one attenuation peak, the amplifier is formed in a semi-conductor body by solid-state techniques, and the R-C filter is formed on the semi-conductor body by thin film techniques. The amplifier preferably contains at least three transistor stages, and is formed by planar diffusion into a silicon body, the R-C filter, which may take either of the forms shown in Figs. 2, 3 being subsequently deposited on to an insulating layer on the silicon body. In the R-C filter, resistance R and capacitance C are formed as distributed parameters; R should be much larger, e.g. by a factor of 30, than the output load resistance of the amplifier.
Patent GB-1431962-A (GB)
Title: Stand for motorcycle wheels
IPC: B60C25/132
Filed: 1973-09-04
Abstract: 1431962 Wheel supports J W ADAMS 4 Sept 1973 41402/73 Heading B7C A stand for use in supporting a motorcycle wheel 11 during the removal of a tyre 10 with a tool for unseating a bead of the tyre from the rim of the wheel, comprises an upright post 14, three radially extending arms 17, 17, 18 extending upwardly and radially outwardly from an upper end of the post, clamp dogs 21, 21, 22 for engagement with the rim 12 of the wheel, a crank 31 operable to move the clamp dog 22 lengthwise of the arm 18, and a rod 36 which is provided with a U-shaped support 34 and which serves, in use, as a fulcrum for the beadunseating tool. As shown, the clamp dogs 21, 22 include recesses (23), Fig. 4 (not shown), for engaging the wheel rim 12. Each clamp dog 21 is adjustably positioned on the associated arm 17 by means of the engagement of a hook (33), Fig. 4 (not shown), of the dog in a selected one of a series of spaced openings (32) provided in the associated arm 17.
Patent GB-985427-A (GB)
Title: Improvements in or relating to road traffic signalling systems
Inventor: POPE JOSEPH
IPC: G08G1/08
Filed: 1960-12-03
Abstract: 985,427. Road traffic signalling systems. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Oct. 2, 1961 [Dec. 3, 1960], No. 41664/60. Heading G4Q. In a traffic signalling system for use at road intersections where blocking back is likely to occur, means are provided at an intersection exit which are operative only by vehicles travelling away from the intersection and which provide signals related to the speed of the vehicles, the signals being applied to arrangements which assess the possibility of a queue extending backwardly across the intersection and which if the assessment is that backward extension is likely to occur cause a signalling operation to take place which is effective in preventing the backward extension of the queue across the intersection. It is considered that blocking back of a stream of traffic leaving a junction so as to interfere with the proper flow of traffic through the junction may be caused either by an actual hold up in the exit lane to cause the traffic to halt, or an obstruction such that the traffic only moves very slowly along the exit lane. Embodiments to deal with either of these eventualities are described. An exit detector EDI is placed in the exit lane and feeds pulses to the detector relays DR, which are arranged to provide speed timing and serve to control speed discriminating circuits SDA and SDB. In order to deal with an actual hold up it is assumed that the vehicle to last cross the pads before stopping will be travelling at say 5 mph or less, and at such speeds the discriminating circuit SDA applies a signal to the lead START, which energizes a delay circuit DC. If no further vehicles cross the detector during this delay period the delayed signal is passed to the controller CON to terminate the right of way at the junction to traffic in this considered direction. If however a vehicle crosses the detector at less than 5 mph during the delay period a second registration is set up in the discriminating circuit SDA and this serves to apply a reset signal on the lead RESET to start the delay period again. If a vehicle crosses the detector at more than 5 mph during the delay period, a registration will be made in the discriminating circuit SDB which passes a signal via the CANCEL lead to deenergize the delay. To deal with the case of very slow moving traffic the RESET lead is omitted, and the discriminating circuit SDA is brought into operation at a speed of say 10 mph or less. If a vehicle crosses the detector at more than 10 mph during the delay period the delayed signal will be cancelled, otherwise the controller CON acts as before. The controller may be arranged to affect traffic lights at the junction and/or to illuminate diversion signals at the approach to the junction. Specification 725,475 is referred to.
Patent GB-1183963-A (GB)
Title: Process for the Production of Alkyl and Cycloalkyl Phenols
Inventor: LAWLEY HERBERT GEORGE
IPC: C07C37/14
Filed: 1967-09-06
Abstract: 1,183,963. Production of alkyl and cycloalkyl phenols. IMPERIAL CHEMICAL INDUSTRIES Ltd. 30 Aug., 1968 [6 Sept., 1967; 13 Sept., 1967], Nos. 40757/67 and 41794/67. Heading C2C. A process for producing alkylated or cycloalkylated phenols comprises reacting a phenolic compound having a free ortho or para position which may be a phenol or an alkyl, aryl or cycloalkyl substituted phenol preferably having a total of at most 9 carbon atoms in the alkyl, aryl and cycloalkyl groups, with a cyclo- or tertiary olefine or alcohol, or tertiary alkyl phenol in the liquid phase using as catalyst a hydrated ferric sulphate. Using this process the following compounds are prepared in the examples: 2 - t - butyl phenol, 2,6 - di - t-butyl phenol, 4 - t - butyl phenol, 2,4 - di - t - butyl phenol, cresols, 3 - methyl - 6 - t - butyl phenol, 3 - methyl - 4,6 - di - t - butyl phenol, 4 - methyl- 2 - t - butyl phenol, 4 - methyl - 2,6 - di - t - butyl phenol and cyclohexyl phenol.
Patent GB-919992-A (GB)
Title: Improvements in or relating to regenerative heat exchangers
IPC: F28D17/02
Filed: 1960-12-05
Abstract: 919,992. Thermal regenerators. BRANDT, H. Dec. 5, 1960, No. 41801/60. Class 64 (1). A rotary-duct, stationary-matrix type regenerator has gas sealing means between the ducts 23, and the regenerative heat - exchange matrix member 14 consisting of a sealing strip 36, a gastight resilient expansion joint 33 and a swivelling joint 48 (Fig. 3) between the duct 23 and a sealing frame 32, and springs 43 urging the frame 32 against the regenerator 14. The seals extend around the peripheries of the duct openings between these and the end faces of the regenerator 14. In the form shown the member 33 is a U-shaped element secured in a gas-tight manner by clamps 34 and packing-strips 35 to the frame 32 and to flange 31 of the rotary ducts 23. The frame 32 has the metal sealing strip 36 secured to it by studs 37, and during rotation of the duct the strip 36 slides on a flange 38 and the radial partitions of regenerator 14. Rollers 39 assist this movement. Bolts 40 spaced at intervals around the sealing assembly are screwed into the frames 42 and helical compression springs 43, carried on each bolt, extend between the flange 41 and a cup member 45 and push the frame 32 and sealing strip 36 against the regenerator 14. Adjustable strip nuts 46 limit the axial movement of the bolt. Rotation of the bolt 40 adjusts the pressure of the springs 43. The springs 42 are damper springs. Swivelling connections 48 (Fig. 3) connect the frame 32 and air duct 23 and comprise a rod 49 connected at its ends by ball-joints to brackets 50 and 51. This swivelling device enables the sealing frames to move axially as well as rotationally. The main part of the contact pressure between the strip 36 and the regenerator 14 is caused by the difference in pressure between the air in the ducts and the hot gases outside the ducts.
Patent GB-1046635-A (GB)
Title: Containers for powdered cosmetics and the like
IPC: A45D33/16
Filed: 1963-10-23
Abstract: 1,046,635. Powder containers. M. P. HOBBS. Oct.. 22, 1964 [Oct. 23, 1963], No. 41917/63. Heading B8P. A container for cosmetic or like material comprises an inner lid located between an outer lid and the base of the container, the inner lid being formed of two semi-circular parts of which one part is rotatable relative to the other to give access to the contents. Means such as a member 6 may be provided to facilitate rotation of the rotatable part or the part 6 may comprise a sleeve around a bolt securing the two parts of the inner lid together. The inner lid may be of a transparent plastic and may be coloured to match the container. The non-rotatable part of the inner lid may be located on a shoulder formed on the inner wall of the container. The outer lid may be a transparent plastic which is torn off when the container is first opened.
Patent GB-1084746-A (GB)
Title: Process and apparatus for the foaming of plastics material
IPC: B29C48/76
Filed: 1964-10-14
Abstract: <PICT:1084746/C3/1> A process for producing foamed thermoplastics material comprises heating a thermoplastics material in the presence of 20-50% by weight of a liquid of boiling point less than 150 DEG C. to a temperature of from 150-300 DEG  C. at a pressure greater than 15 atmospheres gauge a substantially closed chamber, said liquid having a solvent action on the thermoplastics material at least when in the vapour state, and forcing the thermoplastics material/liquid mixture so formed through a discharge outlet in the chamber, into a region of substantially lower pressure, thereby causing the liquid to vaporize from the thermoplastics material/liquid mixture and hence said thermoplastics material to foam.  The liquid used may be a mixture of liquids, such as acetone, methylene chloride, benzene and benzine.  Thermoplastics materials specified are polyvinyl chloride, polystyrene, polyacrylic ester, polyethylene, cellulose acetate and mixtures of these.  The process may be carried out in an apparatus comprising an extrusion press having a screw 2 mounted in a heatable housing 1 and having at least one inlet opening 5 through which a thermoplastic plastics material is introduced, and a discharge outlet 15 through which the material is forced under pressure, the outlet communicating with a substantially closed container 16 positioned adjacent to the press and having a wall provided with an outlet through which passes a conveyer belt 17, the arrangement being such that in use the pressure in the container is less than the pressure in the housing whereby when the mixture enters the container the liquid in the mixture is caused to vaporize and expand the thermoplastic material, the foamed material being removed from the container by the conveyer belt.
Patent GB-946250-A (GB)
Title: Improvements in or relating to variable-impedance electric circuits
IPC: G05F1/59
Filed: 1960-12-06
Abstract: 946,250. Automatic voltage control. GENERAL ELECTRIC CO. Ltd., and J. W. McPHERSON. Dec. 6, 1961 [Dec. 6, 1960], No. 42047/60. Addition to 946, 212. Heading G3R. [Also in Division H3] A variable impedance, more particularly for use in a voltage stabilizer, comprises the basic variable impedance 5, 6, 7, 8 described in the parent Specification with an additional branch 11, 12, 13 arranged to operate in a similar manner to branch 6, 7 and 8 whereby the dissipation of the circuit is increased, more particularly for transient variations. Further similar parallel branches may be added using single or parallel transistors in each branch and the resistances 7, 11 may each comprise a resistor and a forwardly directed rectifier.
Patent GB-1124695-A (GB)
Title: Color density comparator
IPC: G01N21/47
Filed: 1966-09-21
Abstract: 1,124,695. Measuring reflectivity photoelectrically. UNITED COLOR CORP. Sept. 21, 1966 [Sept.27, 1965], No.42055/66. Heading G1A. The invention is a portable apparatus for measuring diffuse reflectivity which may be used to check the amount of ink applied to printed sheets. Light from a lamp 22 Fig. 2 in housing 10 having short legs 29 passes through an aperture 27 in the housing to fall at 45 degrees on to a test piece. Light reflected by the test piece normally to its surface is detected by a photo-conductor 24. The photo-conductor is connected with a potentiometer 17 Fig. 5 to form a voltage divider which controls the current through a transistor 32 and a milliameter 34 to indicate the reflectivity of the test piece. In use the apparatus may be first located over a standard surface and the potentiometer adjusted by knob 16 until the meter 34 shows zero. The meter will then show whether a test surface is darker or lighter than the standard by deflection to the right or left.
Patent GB-995799-A (GB)
Title: Photoflash lamp and protective coating therefor
IPC: F21K5/08
Filed: 1962-11-07
Abstract: 995, 799. Magnesium and like lamps. SYLVANIA ELECTRIC PRODUCTS Inc. Nov. 7, 1962 [Nov. 21, 1961], No. 42136/62. Heading G2L. Photoflash lamp having a transparent envelope 2, the external surface of which is coated with a polyarylcarbonate resin. The lamp 2 may contain filaments of zirconium in an atmosphere which is 95% oxygen and 5% nitrogen at a pressure of 60 cm. of mercury. The zirconium filling may consist of 18 mgs. of zirconium shreds having a crosssection of 0.9 x 1.2 mils and 25 mg. of shreds having a cross-section of 0.9 x 2.5 mils, or in another embodiment 110 mgs. of zirconium shreds having a cross-section of 0. 9 x 1.2 mils.
Patent GB-1111434-A (GB)
Title: Improvements relating to road vehicle transporters
IPC: B60P3/08
Filed: 1965-10-06
Abstract: 1,111,434. Car transporters. D. HOWARD. 26 Sept., 1966 [6 Oct., 1965], No. 42381/65. Heading B7B. A car transporter has a lower deck 2 formed by inwardly facing channels providing runways for the pivot shafts of individual car carriers 5 which after loading are swung upwardly and held in position by locking members 21 on the upper deck 3.
Patent GB-1365117-A (GB)
Title: Applicator for viscous substances
IPC: B05C1/08
Filed: 1971-09-14
Abstract: 1365117 Coating apparatus WINDMOLLER & HOLSCHER 14 Sept 1971 [14 Sept 1970] 42806/71 Heading B2L [Also in Division D1] An applicator for viscous liquids comprises a feed roller 1 and an applicator roller 2 the ends of both cylinders being bevelled to define a triangular gap at the nip of the cylinders at both ends thereof, into which gap extends a triangular part of a pentagonal plate 17 which prevents the coating material reacting the roller bearings. The plate 17 is mounted on a supporting wall 18 and sealing surfaces 19 on side walls 20 lead the coating medium to a funnel 14. The supporting walls 18 are mounted in bearings and spring urged towards the triangular gap. Coating medium is passed to the feed cylinder 1 from a tube 9.
Patent GB-1235919-A (GB)
Title: Laminated structure and method of making the same
Inventor: EDDY ROBERT GEORGE
IPC: D06N3/00
Filed: 1968-09-10
Abstract: 1,235,919. Laminates. R. G. EDDY. 10 Sept., 1968 [12 Sept., 1967], No. 42968/68. Heading B5N. [Also in Division B2] A flexible laminate for use as artificial leather comprises a carrier having at least one face formed with recesses, pores, interstices or capillaries, a preformed layer adhered to said face of the carrier without substantially filling the recesses &c. therein, a hardenable layer fused to the free face of said preformed layer and an outer skin layer adhered to the hardenable layer. The carrier may be paper or woven, non- woven, knitted or felted fabric and the preformed layer may be of polyurethane, polyethylene or vinyl chloride polymer or copolymer optionally mixed with acrylic polymer. These two layers may be adhered by (a) metering semi-molten or molten plastics material between hot calender rolls to form a film which is contacted with the carrier and passing through a nip (6) heating a preformed plastics film and pressing it on to a preheated carrier (c) forming a plastics film by extrusion and calendering or laminating it to a pre-heated substrate or (d) pretreating either carrier or pre-formed layer with adhesive. The hardenable layer may be foamed P.V.C. or polyethylene applied as a plastisol, powder slurry or fluidized powder. The outer skin layer may be applied by any of methods (a) to (d) above.
Patent GB-932309-A (GB)
Title: Continuous elongated structure handling apparatus
IPC: D06B23/02
Filed: 1961-12-01
Abstract: 932,309. Guiding webs. E. I. DU PONT DE NEMOURS & CO. Dec. 1, 1961 [Dec. 7, 1960], No. 43054/61. Class 100 (1). [Also in Group IX] Apparatus (e.g. a roller) for handling and guiding a moving, continuous, elongated structure (e.g. a ribbon or film) has at least one of its surfaces which contact the structure made of ceramic, smoothly rounded nodules being formed on this surface to give it a roughness of 70 to 250 root mean square microinches. The ceramic used is preferably a mixture of the usual ceramic metal oxides with a predominance of chromic oxide in the mix. The ceramic may be flame-sprayed or arc-sprayed and the resulting surfaces are smoothed by brushing or tumbling in an abrasive slurry.
Patent GB-1204608-A (GB)
Title: Method of foaming synthetic foamable resins
IPC: C08J9/16
Filed: 1968-09-11
Abstract: 1,204,608. Foamed copolymers of acrylic or methacrylic acid and amides and/or nitrites. ROHM & HAAS G.m.b.H. 11 Sept., 1968 [16 Sept., 1967], No. 43245/68. Headings C3C and C3P. Moulded foamed resins are made by heating in an enclosed mould a pre-foamed resin prepared by partially foaming a resin in which imido groups have been formed and which comprises (1) a copolymer of (a) 10-90% by wt. of acrylic or methacrylic acid, (b) 10-90% by wt. of an amide and/or nitrile of acrylic or methacrylic acid and optionally (c) up to 40% of at least one further unsaturated monomer, and (2) at least 5% by wt. of urea or N,N<SP>1</SP>-dimethylurea. The (c) component of the copolymer may consist of an acrylate and/or methacrylate, styrene, a vinyl ester or chloride, 2-vinyl pyridine or N-vinyl pyrrolidone. The resin may contain a cross-linking agent, e.g. ethylene glycol dimethacrylate, divinylbenzene, triallyl cyanurate, allyl acrylate or diallyl phthalate; and also silica or asbestos. The foamed resins may be moulded into plates or sheets. In the examples the pre-foam was obtained by heating methacrylonitrile, methacrylic acid, methyl methacrylate, N-(isobutoxy-methyl)- methacrylamide, acrylamide, α-methylene glutaronitrile, acrylic acid, styrene, maleic anhydride, urea, polyvinyl butyral, dibenzoyl peroxide, azobisisobutyric acid nitrile and/or water.