baber/WOPTO huggingface dataset:
Patent GB-1250664-A (GB)
IPC: B60R1/06
Filed: 1968-11-07
Abstract: 1,250,664. Rear view mirrors. A.L.P.F.G. VOSS. 7 Nov., 1968 [15 Nov., 1967], No. 52801/68. Heading B7J. A rear view mirror carrier comprises a base with an upstanding web 1, 1<SP>1</SP>, a truncated paraboloidal housing 3, 3<SP>1</SP>, secured to the base at its smaller end, a mount 4 for a mirror element located at an opening at the larger end of the housing and a tie rod 5 extending from the housing interior through the mount to terminate in a disc 6 so that the mount may be adjustably and releasably secured on the housing by its simultaneous engagement with the disc and housing on opposite sides, and is characterized in that the smaller end of the focusing and the web 1<SP>1</SP> merge in a smooth substantially unbroken curve in a plane passing through the rotational axis of the housing and the tie rod is adjustable by means accessible externally of the carrier but not projecting from the carrier outwardly of said curve. In the embodiment shown, a capstan nut or washer 11 with radial spanner slots 14 is non-rotatably secured to one end of the rod 5 by a polygonal collar 12, and the other end of the rod and a flange 9 on the disc 6 are screw threaded together. In modifications, Figs. 2 and 3 (not shown), the disc 6 is fixed to, or only rotatable on, the rod 5 and the other end of the rod is threaded in a nut integral with the washer 11. In another embodiment, Figs. 5 and 6 (not shown), the rod and disc are integral and the other end of the rod is threaded in a nut (15<SP>1</SP>) which is pivotably secured by a transverse pin to one end of a lever, the other end of the lever extending downwards into a passage in the base portion 1 and being pivotably secured therein by a nut and bolt. After pivoting the lever sufficiently to secure the mount 4, the bolt by a hexagonal key is tightened to hold the lever by frictional engagement with the sides of the base passage. In a further embodiment, Fig. 7 (not shown), the rod is threaded to engage a collar on an arm, the other end of the arm having a second parallel collar, internally threaded to be engaged by an adjusting screw which passes through the base and has its head flush with the base. The tie rod may be of resilient plastics material, and the focusing and base may form an integral unit.
Patent GB-1250878-A (GB)
IPC: C08G69/36
Filed: 1967-12-09
Abstract: 1,250,878. Copolyamides. BP CHEMICALS (U.K.) Ltd. 15 Nov., 1968 [9 Dec., 1967], No. 56096/67. Heading C3R. At least 80 mol. per cent of the units of a copolyamide are derivable from (a) 12-aminododecanoid acid (b) m- or m/p-xylylene diamine containing not more than 30% p-isomer and (c) a dicarboxylic acid. The selection of the particular combination of (a), (b) and (c) is stated to give transparent amorphous polyamides of advantageous tensile strength. (c) may be one or more of adipic, azelaic, sebacic or dodecanedioic acid, iso- and tere-phthalic acids and their hydrogenation derivatives and phenylene diacetic acid. Optional comonomers mentioned are capro- and enantho-lactams and 5-aminohexanoic, 7-aminoenanthoic and 11- aminoundecanoic acids; and 2,2,4- or 2,4,4- trimethyl hexamethylene diamine or 3-aminomethyl-3,5,5-trimethyl cyclohexylamine. The components may be melt-condensed directly or with a precondensation step in the presence of 20 to 150 wt. per cent water under reflux conditions; alternatively an intermediate amide may be prepared by (b) or (c) with (a) at 200‹ to 250‹ C. in the presence of a catalyst before reaction with the remaining component(s). The process may be continuous. Monobasic acids or monoamines may be used as viscosity stabilizers with precautions to avoid discoloration. A colour stabilizer such as an inorganic, e.g. NH 4 , hypophosphite or a tri-hydrocarbyl phosphite may be added as may heat, oxidation and U.V. stabilizers. The polymers may have an inherent viscosity (0.15% solution in H 2 SO 4  at 25‹ C.) above 0.7. In examples the physical properties of copolymers of the invention wherein (c) is iso and/or tere-phthalated acid are compared with those of nylons 6, 12 and 66. In some examples the polymer is insoluble in H 2 SO 4 . The copolymer is stated to be suitable for various moulding techniques; coating, especially on metals, being applied as a powder with subsequent heating to form a coherent film; rigid foams; and fibres. Reference is made to Specification 1,250,877. Reference has been directed by the Comptroller to Specification 1,172,427.
Patent GB-1251207-A (GB)
IPC: H01R33/09
Filed: 1968-04-18
Abstract: 1,251,207. Lampholders. JOSEPH LUCAS (INDUSTRIES) Ltd. 8 April, 1969 [18 April, 1968], No. 18304/68. Heading H2E. Contacts 16 having a U-section contact end and being housed in parallel bores 14, 15 in the insulating body 11 of a capless-lamp holder resiliently grip the pinch of the bulb which, in use, is inserted into a recess 12, contacting the lead wires of the bulb. Each terminal has lugs 17 to grip the cable insulation and lugs 18 to grip and contact the cable core, and includes a slit 21a, an internal resilient projection 21, and a retaining tongue 19.
Patent GB-1252542-A (GB)
IPC: C02F1/00
Filed: 1970-01-19
Abstract: 1,252,542. Reverse osmosis. AQUA-CHEM, Inc. 19 Jan., 1970, No. 2579/70. Addition to 1,251,825. Heading B1X. Reverse osmosis apparatus comprises imperforate support tube means 97, disposed within means 97 a unitary tubular structure comprising an outer porous tube and an inner semi-permeable membrane film, means for conveying liquid to be processed to the interior of the tubular structure, means for conveying permeated liquid along the tubular structure between the membrane film and the support tube to a collection point, and at least one longitudinal groove 98 on the internal surface of the support tube, formed either on the internal surface of a liner 101 of the support tube or in the surface of the support tube itself. The tubular structure may have liquid impervious ferrules 95 bonded to its end and its exterior surface may be grooved (Fig. 1 not shown). Support tube 97 may be of plastics or aluminium. Liner 101 may be of plastics or glass.
Patent GB-1257232-A (GB)
IPC: H01S5/30
Filed: 1969-07-09
Abstract: 1,257,232. Electroluminescence. RCA CORPORATION. 9 July, 1969 [16 Oct., 1968], No. 34635/69. Heading C4S. [Also in Division H1] An infra-red semi-conductor laser operable at room temperature comprises a single crystal body of GaAs with a dopant concentration of 4-15 x 10<SP>17</SP> atoms/c.c. The body, shown in Fig. 1, is shaped and made as described in U.K. Specification 1,197,825. The body lases at currents exceeding 2À1 times the threshold current for the emission of radiation, the current being in the form of pulses of 5-20 nanosecs. duration. The output spectrum isshown in Fig. 6, the beam emerging in a cone of half angle 9 degrees in the direction shown in Fig. 1. Non-coherent radiation also occurs, and continues for some 20 nanosecs. after the coherent pulse as shown by curve B, Fig. 6. The. dopant is n type, and may be Se; Te or Sh..
Patent GB-1258463-A (GB)
IPC: F16C19/00
Filed: 1969-07-29
Abstract: 1,258,463. Electric couplings. ELECTRIC CONDUCTOR BEARINGS Inc. 29 July, 1969 [14 Aug., 1968], No. 37960/69. Heading H2E. Electrical connection between fixed race member 10 and rotating race member 28 secured to shaft S is through rollers R, at least one, preferably all of which comprise a resilient rotatable conductive member capable of compression transverse to the axis of the roller to compensate for any non-alignment between the race members. The track for the rollers is formed by co-operating grooves in the inner and outer circumferences of members 10 and 28 respectively (Fig. 1, not shown). Lead 36 is connected to fixed race member .10 and lead 34, accommodated in the bore of the shaft, is connected to rotating race member 28. The latter is insulated from the shaft by member 30. The resilient roller may comprise a spring, e.g. a cylindrical coil spring with its axis parallel to one shaft, supported on a rod by a porous sleeve (Fig. 3, not shown). The porous support retains conductive lubricant for the rollers. A number of fixed race members may be mounted on one shaft for independent control of a number of rotating devices.
Patent GB-1265982-A (GB)
IPC: C03B19/04
Filed: 1969-09-16
Abstract: 1,265,982. Glass. SIEMENS A.G. 16 Sept., 1969 [17 Sept., 1968], No. 45647/69. Heading C1M. Glass having a thermal expansion coefficient of 61 to 68.10<SP>-7</SP>/ C. (20-400 C.) consists of (in weight per cent): The glass may be cast at a temperature of 1320C. in a centrifugal mould 20. The expansion coefficient renders the glass suitable for sealing to Fe-Ni-Co alloy or Al 2 O 3  members e.g. metal end pieces 3 and ring 4 may be sealed to glass tube 1 in making a vacuum switch.
Patent GB-1290029-A (GB)
IPC: G11C19/28
Filed: 1970-10-29
Abstract: 1290029 Transistor pulse circuits NIPPON ELECTRIC CO Ltd 29 Oct 1970 [1 Nov 1969] 51546/70 Heading H3T Two F.E.T.'s 15, 19 are in series with a rela. tively high impedance load such as a further F.E.T. 17 having a D.C. bias VGG, the F.E.T. 15 receiving an input signal and providing an inverted output (to a F.E.T. 22) when the F.E.T. 19 is turned on by a periodic signal # 2 . F.E.T.'s 17, 19 may interchange their positions. A shift register stage has two such inverters connected by a gate 22 controlled by the clock signal # 2  which turns on the F.E.T. 19 of the preceding inverter. The next inverter and its output gate is controlled by a second clock pulse # 1 . The switching F.E.T. 19 or 20 has a low impedance when on, compared with the load F.E.T. which has a resistance of 200 K. The load is thus maintained constant as compared with circuits where the load F.E.T. is turned on (to its resistive state) and off, by a pulse of non-constant amplitude.
Patent GB-1296317-A (GB)
IPC: H01H19/635
Filed: 1971-04-19
Abstract: 1296317 Mechanical switches SIEMENS AG 19 April 1971 [17 March 1970] 24634/71 Heading H1N An adjustable contact bridge includes a contact bar 2 connected to a contact or strip conductor and positioned to cross strip conductors 1a and connected at the intersection with a selected one of conductors la by a contact 3 which can be moved along bar 2 by rolling a pinion 4 along a toothed surface 5a provided on the bridge. Pinion 4 is rotated by a screwdriver in slots 4a. Pinion 4 is held in its switching positions by recesses formed between projections 5b in the housing wall which is flexible to yield when pinion 4 is rolled past projections 5b. Contact 3 is moved between adjacent conductors la by a quarter turn of pinion 4 and the switching positions are marked by a screwdriver slot 4a coming adjacent to marks 5d opposite indicia 5e. Conductors la are printed circuit conductors on board 1 and bar 2 is connected at one end by lug 2a soldered into a hole 1b in the left hand conductor 1a. Contact 3, detailed in Fig. 3 (not shown), is spring urged against conductors 1a and slides along bar 2 being connected to bar 2 by spring arms 3a, Fig. 3, having hooks 3c, Fig. 3, hooking through slots in bar 2. Pinion 4 has an integral downwardly projecting hollow pin 4c, Fig. 3, into which projects a pin 3b, Fig. 3, on contact 3 so that as pin 4c rolls along, pin 3b and hence contact 3 is moved across board 1. More than one pinion 4 and contact 3 can be mounted on bar 4.
Patent GB-1296777-A (GB)
IPC: A01N43/88
Filed: 1970-04-14
Abstract: 1296777 Herbicidal compositions BADISCHE ANILIN- & SODA-FABRIK AG 14 April 1970 [15 April 1969] 17624/70 Heading A5E A herbicidal composition comprises a mixture of a benzothiazinone dioxide of formula I in which R denotes methyl, ethyl or isopropyl or a salt thereof and at least one substituted oxadiazinedione of formula II in which X and Y are identical or different and each denotes hydrogen, fluorine or trifluoromethyl, or a phenylmethylcarboxymethoxy urea of formula in which R denotes a haloalkyl radical, preferably 1-chloromethylpropyl. Suitable salts include the potassium, sodium, calcium or magnesium salts. The composition may be applied to soil or plants in order to destroy unwanted plants and has good selective action on crop plants such as Indian corn, rice, wheat, barley. &c. The herbicidal compositions may be used as solutions, emulsions, suspensions or dusts. The solvents may be water hydrocarbons having boiling points higher than 150‹C. or organic liquids having boiling points greater than 150‹C and one or more functional groups, e.g. keto, ester, ether or amide.
Patent GB-1297330-A (GB)
IPC: E02D5/52
Filed: 1971-06-21
Abstract: 1297330 Tube couplings SHANGYUSHENG 21 June 1971 29032/71 Heading F2G Concrete piles are non-releasably interconnected by a pin and socket joint, in which an expansion wedge 6 is held abutting end plate 5 of a tapered socket 4, while a member carrying the pin 1 is lowered to bifurcate the split end of the pin.
Patent GB-1297614-A (GB)
IPC: B24B13/06
Filed: 1970-01-16
Abstract: 1297614 Grinding lenses; cucks J & S WYLDE Ltd 19 April 1971 [16 Jan 1970] 2164/70 Headings B3B and B3D A lens-generating machine comprises a pair of power-driven rotatable holders 16, 18, one for holding a master 48 and the other for holding a lens blank 50, a follower wheel 54 for tracing the contour 52 of the master as the latter rotates, and a lens-grinding or lens-cutting wheel 72 arranged to move as the follower wheel moves so as to generate a surface on the lens blank which corresponds exactly to the surface of the master traced by the follower wheel. The work-holders 16, 18 are mounted one above the other in a casing 14 upstanding from a base 10, each work-holder consisting of a collet 12 splined to a shaft 28, 30 mounted in bearings 36, 38 carried by the front wall of the casing and bearing housings 44, 46 on the rear of the casing. Each collet has four protruding fingers 21, Fig. 4, for holding the master and lens blank, respectively. Each shaft 28, 30 carries a pulley 32, 34 around which is entrained a belt 20 driven by a pulley 22 on an electric motor 26. The follower wheel 54 is mounted on a shaft 56 for rotation about a vertical axis, the shaft being carried by a block 58 adjustable along a pair of guide rods 64 mounted on a bracket 62 by a hand wheel 70. A mounting 71 is attached to the bracket 62 and supports a vertical shaft 73 having the lens-grinding wheel 72 at its lower end and a drive pulley 75 at its upper end. The bracket 62 is movable about a vertical pivot mounting 77 by one or more hydraulic rams 79 to urge the follower wheel and grinding wheel into engagement with the master 48 and lens blank 50, respectively, as the latter are rotated by the belt drive 20. In order to traverse the follower wheel and grinding wheel, the bracket 62 is connected by a link to the cylinder 98 of an hydraulic or pneumatic ram having its piston connected to a stationary part 88 provided with collars in which slide rods 94 connected to the bracket. Bellows 100 prevent particles causing wear of the rods.
Patent GB-1298009-A (GB)
IPC: G11C13/06
Filed: 1970-05-20
Abstract: 1298009 Magnetic storage apparatus HONEYWELL Inc 20 May 1970 [15 Aug 1969] 24479/70 Heading H3B A Curie point magnetic memory includes a quenched phase magnetic film i.e. a magnetic medium which has substantially retained its high-temperature phase crystallographic structure at a temperature below the medium's low-temperature phase Curie point. The quenched phase manganese bismuth film 46 is formed by heating the normal low temperature phase film above its Curie point 360 C. and then rapidly cooling which step retains the high temperature phase crystallographic structure of the film at room temperature, Figs. 1, 2 (not shown). In order to write information into a portion of the film 46 a laser pulse 31 plane polarized at 32 in passed unimpeded through KDP or LiNbO 3  modulator 40 and deflected by deflector 44 on to the required spot of film 46 to raise the temperature thereof above its quenched phase Curie point of 180 C. After exposure the intensity of beam 31 is decreased by modulator 40 or deflected to another part of the film. Upon cooling the film the spot becomes magnetized in an antiparallel direction to that of the surrounding film due to the closure flux of the surrounding area aided by the field from coil 48 to store a bit. During the writing operation detector 54 is protected by electro-optical shutter 52 which is operated in synchronism with modulator 40. Information is read out by the magneto-optic Faraday effect as follows or Kerr effect. The intensity of the beam 31 is attenuated by modulator 40 and the beam's plane of polarization is rotated as a function of the orientation of the spots magnetization. The analyser 50 and attenuator 52 are arranged to pass a maximum intensity when the polarization direction corresponds to the magnetization vector being antiparallel, the intensity of the beam being selected at 54. Instead of using a lazer beam an electron beam may be employed. Erasure of information is obtained by heating the film above the Curie point and cooling in the presence of a strong magnetic field.
Patent GB-1302371-A (GB)
Inventor: ROBERTS D F T
IPC: B23K33/00
Filed: 1969-02-27
Abstract: 1302371 Welding by fusion FOSTER WHEELER JOHN BROWN BOILERS Ltd 19 Feb 1970 [27 Feb 1969] 10519/69 Heading B3R In making a welded joint between a tube 10 and a tube-plate (or header) 12, wherein the plate bore 14 is slightly larger than the tube outside diameter, an annular filler insert 16 is positioned in a gap between the end of the tube and the tube plate, and the joint is effected by non-consumable electrode arc welding. The insert cross-section may be round, conical spring washer-shaped, or, preferably, of the shape shown. The tube end may be chamfered as shown. The insert composition may be such as to eliminate hot cracking or embrittlement. A large insert having an outside diameter greater than the plate bore diameter may be made in a number of annular segments and assembled through the bore, the gaps between the segments not exceeding 3/32 inch. Welding may be external or, as particularly described, internal by TIG torch, with the reverse side shielded by inert gas or powdered flux, or protected by a non-fusible backing ring such as non-recoverable ceramic, or recoverable coppertungsten, half-rings, such rings being possibly shaped to profile the weld surface. Alternatively, for mild and low alloy steels, the insert composition may be such as to reduce atmospheric contamination without using other protection. The invention enables tube removal in heat exchangers, by drilling the join, in the bore 14, removal of the tube through the bore and fitting and welding a new tube using a further insert.
Patent GB-1304372-A (GB)
IPC: A47K11/06
Filed: 1969-06-27
Abstract: 1304372 Chamber pots R P HICKMAN 11 Feb 1970 [27 June 1969] 32666/69 Heading A4N  A moulded plastics toilet pot, suitable for children, comprises a receptacle 10, having a substantially horizontal seat rim 11 on a base 12, and a foot-rest 16 integrally formed with the receptacle 10 to stabilise the pot during use. The foot-rest 16 has outwardly and downwardly sloping edges 17 Fig. 2 (not shown) and 18 around a surface in which a pair of recesses 22 in the shape of a pair of footprints, separated by a ridge 21 are formed. The bases of the recesses are substantially horizontal in use. An upstanding splashguard 15 is mounted on the front edge of the receptacle 10 and has a pair of recesses 23 which form a handle. The pot can be injection moulded, may be stackable and have gripping means e. g. friction pads, or lateral ribs under the foot-rest or incorporate a strap to secure the child in place. The foot-rest can be formed as an extra catchment area and may extend all around the receptacle.
Patent GB-1309617-A (GB)
Title: Fuel cells
IPC: H01M8/06
Filed: 1971-04-19
Abstract: 1309617 Fuel cells INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 19 April 1971 [26 March 1970] 25013/71 Heading H1B A fuel cell block 2 is located above the oxidant purifier 1 so that the oxidant (air) moves upwardly from the cool part to the hot part of the apparatus assembly by natural convection via duct 12. The outlet from block 2 has a duct 13 for air and combustion products having at its upper end a suction device of the Venturi type actuated by the movements of the ambient air. The electrolyte (KOH) is cooled by circulation through a heat exchanger 3 with fins 31, using natural convection. A valve 3<SP>1</SP> regulates the temperature of the electrolyte returned to the cell block along return duct 25 by controlling the flow from one of ducts 23 and 24. The fuel (hydrogen) flows via duct 21 through a " gaslifter " 4, wherein part of its expansion power is used for lifting the purifying liquid from purifier 1 up to a regenerator 1<SP>1</SP> and, via a duct 141, back to the purifier. The fuel then passes through a distributer 2<SP>1</SP>, formed of capillary tubes above each chamber, into the cell block 2. The purifying liquid absorbs CO 2  from the air used as oxidant.
Patent GB-1312285-A (GB)
Title: High-frequency intruder detector
IPC: G01S13/34
Filed: 1970-09-11
Abstract: 1312285 Intruder alarm SHORROCK DEVELOPMENTS Ltd 25 Aug 1971 [11 Sept 1970] 43516/70 Heading G4N [Also in Division H4] A radar intruder alarm, in which a modulated transmitter radiates into the protected area and an adjacent receiver fed with a part of the radiated signal and reflected signals, operates an alarm when the time delay between transmitted and received signals varies. The Fig. 1 embodiment shows a Gunn diode transmitter 1, frequency modulated using a varactor diode 2 driven by sawtooth generator 3. Reflected signals are mixed in Schottky diode 5 with the instantaneous transmitted signal and passed to swept gain amplifier 6. Filters 7 determine the near and far boundaries of the protected area and any changes in level at the output of amplifier 8 are detected and trigger alarm 10. In a second embodiment (Fig. 2, not shown) a pulse generator (12) triggers a Gunn diode transmitter (11) and sawtooth generator (14) which controls two swept gain amplifiers (16, 17) in the receiver. The output of the second amplifier (17) is thus a series of pulses whose amplitudes are range dependent. Changes in the summed output amplitude trigger the alarm (19). The input to the change in level detector 9, (19) may be differentiated and used to disable the alarm for low and high velocity movements.
Patent GB-1322443-A (GB)
Title: Non-dusting high temperature rotary dryer
IPC: F26B17/00
Filed: 1971-04-19
Abstract: 1322443 Rotary dryers WYSSMONT CO Inc 19 April 1971 [5 Feb 1970] 23870/72 Divided out of 1322442 Heading F4G The subject matter of this Specification is identical with that disclosed in the parent Specification 1,322,442, but the claims are concerned with the means for thermally insulating the housing 20 so that the temperature of the support members 22 is maintained approximately equal to that of the interior of the housing 20.
Patent GB-1329716-A (GB)
Title: Removal of workpiece debris from machines
IPC: A47L9/08
Filed: 1970-10-10
Abstract: 1329716 Machinery guards SMITH BROS (LEICESTER) Ltd 10 Jan 1972 [10 Oct 1970] 48252/70 Heading F2J [Also in Division F4] An exhaust hood for containing and removing debris such as dust, chips and shavings produced by the cutting tool of a router woodworking machine, comprises a skeleton top frame 2 made up of a plate 3 having an aperture 4 through which the router tool extends in use, and an aperture 5 communicating with an exhaust connection 6. The plate 3 is connected via arms 7 to a peripheral rim 1 from which a continuous skirt 8 of nylon bristles depends. The bristles are clamped to the rim by a strip 9 and a transparent plate 11 closes the top of the hood. In use the tips of the nylon bristles 8 brush over the upper surface of a workpiece as the router head H moves The exhaust connections in use is connected to a dust collector. A plurality of compressed air nozzles 14 mounted on an arcuate manifold 15 are provided inside the hood to direct the chips &c. thrown off from the tool into the exhaust connection.