baber/WOPTO huggingface dataset:
Patent GB-1251172-A (GB)
IPC: G21F9/00
Filed: 1970-04-09
Abstract: 1,251,172. Apparatus for washing articles. EUROPEAN ATOMIC ENERGY COMMUNITY. 9 April, 1970 [10 April, 1969], No. 16933/70. Heading F4X. [Also in Division D1] Apparatus for cleaning articles, e.g. contaminated clothing, by washing them with a warm mixture of condensed water vapour and a solvent which has a lower specific gravity than water and is immiscible therewith, consists of a vessel 1 closed at its upper end by a cover 2 cooled e.g. by water, the vessel being subdivided into upper and lower compartments by a strainer 5 (e.g. of superimposed slotted plates), the articles 9 to be washed being located in a holder 7 in the upper compartment whilst the lower compartment contains the solvent 11 and a steam supply pipe 6.  In use, a mixture of steam and evaporated solvent passes upwardly through the strainer 5, heats the holder 7 and then condenses on the cooled surface of the cover 2. The condensate falls into the holder 7 immersing and washing the articles 9 therein and eventually discharges automatically through a siphon tube 8 to the lower compartment where the solvent 12 separates and floats upon the water 12 of condensation. The water and also the solvent if contaminated by washed-off materials, may be drawn off through a valved duct 4.
Patent GB-1258522-A (GB)
IPC: F16C27/04
Filed: 1969-08-08
Abstract: 1,258,522. Ball bearing. NORTH AMERICAN ROCKWELL CORP. 8 Aug., 1969 [3 Sept., 1968], No. 47538/70. Divided out of 1,258,521. Heading F2A. A ball bearing assembly having at least one set of balls 1 disposed between coaxial annular races, has at least one race supported at one end so as to be free to deflect as a cantilever beam. The race has an arcuate recess forming the raceway and the unsupported end of the race is stiffened with an annular band 59 on the side of the race remote from the raceway the thickness of the portion of the race between the support and the band being such that the portion is free to deflect as an end supported beam.
Patent GB-1258636-A (GB)
IPC: B65G23/44
Filed: 1969-03-15
Abstract: 1,258,636. Tensioning endless conveyer members. GULLICK DOBSON Ltd. 25 Feb., 1970 [15 March, 1969], No. 13728/69. Heading B8A. [Also in Division F2] A mechanism for adjusting the tension of a belt or chain, such as a conveyer belt or chain, comprises a double eccentric member 11, 12, the outer eccentric 11 being mounted in a fixed housing 10, and the inner eccentric 12 carrying a shaft 14 to which is keyed a tensioning wheel or pulley 15. The outer eccentric 11 carries intermeshing planet pinions 20, 23 which mesh a or fixed toothed annulus 21 and a toothed member 16 secured to the inner eccentric 12 respectively. Rotation of a shaft 18 carrying pinion 20 causes lateral movement of the shaft 14 in substantially a straight line. A locking plate 19 is provided for shaft 18.
Patent GB-1259588-A (GB)
IPC: H01L21/00
Filed: 1970-01-30
Abstract: 1,259,588. Facsimile apparatus. WESTERN ELECTRIC CO. Inc. 30 Jan., 1970 [4 Feb., 1969], No. 4541/70. Heading H4F. [Also in Divisions G2 and G4] Apparatus for generating a pattern, character or image comprises a laser 13, a modulator 23 for intensity modulating the beam, a rotatable mirror drum 19 having reflective surfaces 20 for causing the beam to scan and a lens 18 having a focal length which varies in accordance with K#/tan#, where K is a constant and # is the angle between the scanning beam and the axis of the lens. Binary data representing the pattern to be generated is fed from a store 11 to the modulator 23 via a shift register 22. The binary data causes the modulator to switch the beam 16 on or off. A motor 25 rotates the mirror 19 at a constant angular velocity so that the beam scans a photographic plate 12 through a slit 26 in a stationary mask 27. At the end of each line scan, the register 22 actuates a motor 31 which rotates a lead screw 32 to advance a table 33 on which the plate 12 is positioned. To ensure that each bit of data modulates the beam at the correct instant during its scan, a beam splitter 15 produces a second beam 17 which is reflected from a mirror 29 to a plate 34 comprising alternate opaque and transparent strips. The beam 17 is focused by a lens 35 on a photodetector 30 which supplies gating signals to the shift register 22. An interferometer controlling a refractory plate or rotatable mirror is provided to compensate for errors in the incremental movement of the photographic plate 12. The apparatus, which may be used to generate mask patterns for making integrated circuits may also be used as a facsimile reproducer of stored analogue signals. The reflecting facets of mirror drum 19 may each comprise roof-shaped reflector prisms (Figs. 6 and 7, not shown).
Patent GB-1264566-A (GB)
IPC: H01J35/08
Filed: 1970-05-19
Abstract: 1,264,566. Electrode materials. METALLWERK PLANSEE A.G. & CO. K.G. 19 May, 1970 [24 July, 1969], No. 24111/70. Heading H1D. [Also in Division C7] Targets for X-ray tubes (e.g. rotary targets) are made, at least in the focal track area, of an alloy comprising:- with optional additions of one or more of Ir, Os, Pd, Pt and Re in a total amount of 0À01-4%, the balance being W.  When only the focal track is made of the alloy the target base may be of graphite, W, Mo or alloys of W or Mo. In the example the target is made by filling a die with Mo powder, adding a layer of powdered W 1À5% Rh powder, pressing the composite at 4 tons/inch<SP>2</SP> and then sintering in vacuum or a reducing atmosphere at 2000‹ C. Reference is made to applying the coating layer by gas phase deposition or plasma gun spraying followed by diffusion annealing.
Patent GB-1266275-A (GB)
IPC: C07C51/363
Filed: 1970-04-14
Abstract: 1,266,275. Monochloroacetic acid. KNAPSACK A.G. 14 April, 1970 [17 April, 1969], No. 17745/70. Heading C2C. Monochloroacetic acid is prepared by preheating to 70‹ to 130‹ C. a mixture of acetic acid with acetyl chloride and/or acetic anhydride, reacting this with chlorine gas at 80-140‹ C. until a monochloroacetic acid concentration of 60 to 70 wt. per cent is obtained, withdrawing HCl and acetyl chloride at the reactor head, withdrawing a mixture of monochloroacetic acid, acetic acid, acetyl chloride, acetic anhydride and dichloroacetic acid at the reactor base, passing this to a distillation column, and passing the monochloroacetic acid-containing product from the base of the distillation column to a crystallizer. Pressures of up to 2 atm. gauge may be used. In exemplified apparatus, there are the following additional characterizing features: (a) chlorine gas is passed prior to reaction through a scrubbing steam of acetic anhydride and/or acetyl chloride, (b) the acetic acid and acetyl chloride and/or acetic anhydride are preheated in a heat exchanger by the hot products from the base of the reactor, (c) acetyl chloride is recovered from the off-gases leaving the head of the reactor by countercurrent scrubbing with the mixture to undergo chlorination, (d) recycling occurs at all separation stages and (e) water is added to the product from the base of the distillation column to hydrolyse acetic anhydride present.
Patent GB-1288976-A (GB)
IPC: D21H19/32
Filed: 1969-12-01
Abstract: 1288976 Organopolysiloxane composition GENERAL ELECTRIC CO 1 Dec 1969 [13 Dec 1968] 58568/69 Heading C3T An organopolysiloxane composition used in coating paper comprises (by weight): (I) 1-29 parts of a linear polydimethylsiloxane gum containing terminal silicon bonded OH groups and having a viscosity of at least 10,000,000 centistokes at 25 C.; (II) from 0À005-0À45 parts of a silane HSiX 3  where X is lower (C 1-8 ) acyloxy, alkoxy or dialkylaminoxy; (III) 0À003-0À36 parts of an organometal salt of a fatty acid; and (IV) 70-98 parts of an organic solvent. HSiX 3  may be triacetoxy-, trimethoxy- or diethylaminoxy-silane. III may be dibutyl tin dilaurate, dibutyl tin dioctoate, dibutyl tin di-2-ethylhexoate, stannous octoate or zinc octoate. The solvent may be aromatic, e.g. xylene, or a mixture of xylene and methyl ethyl ketone. The coated paper is heated to at least 100F. to effect a cure. In examples super-calendered Kraft paper is coated with 0À5-11b. per 3000 sq. feet of the organopolysiloxane compositions.
Patent GB-1296439-A (GB)
IPC: C01B21/098
Filed: 1970-04-10
Abstract: 1296439 Phosphonitrilic chloride BADISCHE ANILIN- & SODA-FABRIK AG 10 April 1970 [12 April 1969] 17094/70 Heading C1A Phosphonitrilic chlorides (PNCl 2 ) n  where n is 3 or more, are produced by passing ammonia through a solution of phosphorus pentachloride of not more than 5 molar concentration, at a rate of 0À12 litres/min. (measured at 20 C. and 760 mm. Hg) per mole of PCl 5 . The solvent for the phosphorus pentachloride may be carbon tetrachloride chloroform, 1,1,2,2-tetrachloroethane ligroin or chlorobenzene and the temperature of reaction 90-120 C. The product contains predominantly trimeric and tetrameric phosphonitrilic chloride.
Patent GB-1297875-A (GB)
IPC: B23Q5/32
Filed: 1970-01-28
Abstract: 1297875 Drilling devices SOC DES AUTOMOBILES SIMCA 28 Jan 1970 [30 Jan 1969] 4185/70 Heading B3C A drilling device comprises a hollow body 1 having a bearing 8 which slidingly receives a sleeve 9 in which are slidingly mounted drive members 10, 11, member 10 being drivingly connected to a drive pin 13 of a drilling head 2 connected to one end of the body and to the sleeve by a pin 14 and member 11 being drivingly connected to a chuck 23 for a drill 24, guide means for the drill connected to the other end of the body, and between the drive members a spring 21. The two drive members are drivingly connected by engagement between flat surfaces 17a, 18a and the ends of the rim 14 engage in longitudinal slots 15a, 15b in the sleeve 9. End 27 of the hollow body receives a ring 28 with an interposed washer 29. A slide 31 is located in the ring and carries a centering bush 32 which is spring biased. End 34 of bush 32 engages a guide bushing 35 secured to drill jig 36. The hollow body is also connected to the drill head 2 by half rings 3, 3a and screws 6. In operation drill 24 engages metal sheet 37, then further downward movement of head 2 causes spring 21 to be compressed which produces by reaction a predetermined pressure on drive member 11 and thus on drill 24.
Patent GB-1304186-A (GB)
IPC: B23Q11/00
Filed: 1969-10-04
Abstract: 1304186 Reducing chatter in machining operations MACHINE TOOL INDUSTRY RESEARCH ASSOCIATION 23 Dec 1970 [4 Oct 1969] 48870/69 Headings B3C B3L and B3T In a method of machining a workpiece, regenerative chatter set up by the cutting action between a cutting tool and workpiece is reduced or substantially eliminated by varying the relative speed of movement between the cutting tool and the workpiece between one cutting cycle and the next. In machining operations involving relative rotation between tool and work, i.e. turning and boring operations, a cycle is defined as one revolution of the work or tool which brings the work or tool back to its original angular position. In machining operations involving relative linear motion between the tool and work, a cycle is defined as one stroke of the tool or work and return to its starting position for the next working stroke. The latter is applicable to planing operations and shaping operations.
Patent GB-1310822-A (GB)
Title: Process for the production of aluminium fluoride
IPC: C01F7/50
Filed: 1970-04-07
Abstract: 1310822 Al fluoride and fluorosulphate; ammonium Al fluoride and sulphate G E KIDDE 7 April 1970 16456/70 Heading C1A AlF 3  is produced by reacting NH 4 F and/or NH 4 HF 2  with (AlF 3 ) 3 SO 4 , AlF 2 OH or an Al salt not containing F, in aqueous medium, to give an insoluble ammonium fluoroaluminate (NH 4 ) x AlF y  where x is 1-3 and y is 3+x, dehydrating the fluoroaluminate at 300‹ F. or less until the free moisture content is 3% or less, and then heating at 500-1200‹ F. to remove ammonium fluorides and form A1F 3 . Suitable Al salts are NO 3 , Cl, SO 4 , or ammonium alum. The (AlF 2 ) 2 SO 4  may be obtained by reaction of CaF 2  and Al 2 (SO 4 ) 3  or H 2 SiF 6  and Al 2 (SO 4 ) 3  optionally with Al 2 O 3 . The ammonium alum may be obtained by reacting bauxite with NH 4 HSO 4  and steam. (NH 4 )SO 4  may be crystallized from the reaction medium after separation of fluoroaluminate, converted NH 4  HSO 4 , and re-used. The ammonium fluoride evolved in the heating step may be recycled; make-up may be provided by reacting CaF 2  with NH 4 HSO 4  and absorbing the HF evolved in ammonia.
Patent GB-1315713-A (GB)
Title: Mineral cutting picks
IPC: E21C35/19
Filed: 1970-07-02
Abstract: 1315713 Mineral-mining picks; stud and socket fastenings WICKMAN WIMET Ltd 21 May 1971 [2 July 1970] 32091/70 Headings E1F and E2B In a laterally extending recess 14 in the shank 12 of a mineral-mining pick 10 is housed a resilient sleeve 14 in which at latch is so retained by one or more parts 17 of a stem 16 having a latch head 18 that overlaps the outer end of the sleeve and slidingly engages the wall of the recess, that the head of the latch willl be moved by end wise pressure into the recess against the inherent resilience of the sleeve. Preferably the head is of truncated conical form and the part or each part 17 is also of truncated conical form. The part or parts 17 may each have its larger end face nearer the head 18 or a single part 17 may form the foot of the stem and fit within a complementarily formed, truncated conical portion of the bore of the sleeve.
Patent GB-1321532-A (GB)
Title: Nitrofuran derivative
IPC: A01N43/824
Filed: 1971-01-01
Abstract: 1321532 Preservative UENO SEIYAKU OYO KENKYUJO KK 1 Jan 1971 182/71 Heading A2D [Also in Division C2] Food, e.g. fish, bean curd and meat sausage, is preserved by treatment with 5-[2-(5-nitro-2- furyl)-1-(2-furyl) vinyl]-2-[(2-tetrahydrofuryl) acetylamino]-1, 3, 4-oxadiazole of the formula I:  The preserving agent is preferably in solution in, e.g., water, saline water, ethanol or glycerol, or mixed with a solid such as a sugar.
Patent GB-1322060-A (GB)
Title: Colour convertor for black and white television sets
IPC: H04N11/00
Filed: 1970-10-13
Abstract: 1322060 Colour television F V TOPPING 13 Oct 1970 48607/70 Heading H4F In front of a black and white television screen fed with frame-sequential signals there is mounted a screen 16 having vertical stripes of alternately red R and cyan S. An endless belt is also mounted in front of the television screen having the screen 16 in front of or behind it, or with the screen 16 between the oppositely moving parts of the belt. The belt has alternately transparent stripes 21 and opaque stripes 19, the top of each stripe being offset 1, 3, or 5 stripe widths from the bottom of the stripe. The drive to the endless belt is synchronized with the frame synchronization of the television receiver so that as the belt is driven round, the intersections of the transparent stripes 21 form diamonds which move down the screen in synchronism with the vertical picture scanning. In the position of Fig. 3 a red frame is being received and the transparent diamonds only allow the light from the T.V. screen passing through the red screen stripes R to be viewed. The next frame will be viewed through the cyan screen stripes S (Fig. 5, not shown). In an alternative embodiment (Figs. 7-10, not shown) the screen 16 has alternate transparent and opaque stripes and the belt has alternate red and cyan stripes, the overlap of the red stripes and cyan stripes being opaque, and thus producing a similar result. Instead of using red and cyan, different complementary colours may be used and different colours may be used if the T.V. screen is coloured or an additional filter is used between the T.V. screen and belt so as to give the equivalent resultant to red and cyan. Red and blue or red and green may be used instead of red and cyan. For a three-colour system (Figs. 11-13, not shown) a screen is used having alternate transparent and opaque stripes the opaque stripes being twice as broad as the transparent ones and the belt having red, blue and green stripes of equal width to the screen transparent stripes in sequence, the tops of the stripes being offset 1, 2, 4 or 5 stripe widths relative to the bottom of the stripes. To reduce red flicker the stripes may be in the order red, green, red, blue, red. A light (20, Fig. 2, not shown) shone through slits in one side of the endless belt to a photo-cell (22) may be used to check the synchronization of the belt drive or may be used instead of synchronization from the T.V. set.
Patent GB-1323245-A (GB)
Title: Combination check and pressure relief valve
IPC: F16K17/168
Filed: 1971-09-23
Abstract: 1323245 Valves CIRCLE SEAL CORP 23 Sept 1971 44321/71 Heading F2V In the closed state of the pressure relief valve 10, as shown, the disc-shaped valve member 17 is biased by a spring 20 into engagement with an annular seat 16, and an annular elastomeric O-ring 32 is fluid-pressure biased into engagement with both the valve member 17 and with a housing relieved portion 19 circumadjacent the seat 16, such fluid bias always being the same regardless of the pressure within the inlet portion 12. The 0-ring is contained within an annular channel shaped casing 33 which is permitted a limited degree of axial displacement, that is between the position shown and a position whereat it abuts a shoulder 29. In the open state of the valve, member 17 abuts a shoulder 28 and flow to the outlet portion 11 takes place about a plastics chamber 22 and through passages 26 defined between ribs 25 extending radially outwardly from the chamber 22. The valve housing is comprised of the inlet and outlet portions 12 and 11 to which is welded a cylindrical central portion 13. The provision of the 0-ring 32 is said to ensure that cracking of the valve is governed solely by the calibration of spring 20.
Patent GB-1330765-A (GB)
Title: Lamp constructions
IPC: H01K1/36
Filed: 1971-06-09
Abstract: 1330765 Sealed lamp unit THORN ELECTRICAL INDUSTRIES Ltd 2 June 1972 [2 June 1971] 18676/71 Heading F4R [Also in Division H1] A hermetically sealed lamp unit comprises a pair of members either containing or themselves consisting of a reflector and a lens respectively, each member having a rim which abuts the rim of the other and a layer of bonding material between the rims to secure and seal the two members together and a base member carrying a light source and being bonded to the reflector, the base member and reflector having interfitting mating portions. The bonding material is preferably an epoxy resin but may be a glass or glass/ceramic frit. In an embodiment, a vehicle headlamp including a twin filament tungsten halogen bulb 11 and a mask 15 therefor, has a soda glass or plastics front cover 12 a metal, glass or plastics reflector 13 and metal, glass or plastics base 14 secured to one another by adhesive. The respective rims of the cover, reflector and base may have a corresponding tongue and groove or rebates for the adhesive (Figs. 2b, 3b, 7 and 8, not shown) and are so made that a gap is left for the adhesive. To ensure correct location of the cover and reflector detents and correponding projections are formed in the rims (Figs. 2a and 3a, not shown).  When a metal reflector is used the rim of the reflector 13 is bent up and over the rim of the cover 12. Metal clips or plastic moulding 69 may be put around the rims while the adhesive is setting. The moulding may be left in place to protect the rim. Slotted or apertured lugs may be provided integral with or bonded to the reflector for mounting the headlamp. A tubulation may be provided on the base for evacuating the air from the lamp or replacing it by an inert atmosphere, for use with an exposed tungsten filament. A high pressure gas or metal vapour lamp may be used in place of the tungsten filament lamp together with an inert gas filling. The headlamp may be used as a spot-lamp by incorporating an apertured screen or a plurality of vehicle lamps may be incorporated in one structure by joining together appropriate reflectors and front covers. A lamp suitable for use as an indoor or outdoor spot-light may also be made.
Patent GB-1334820-A (GB)
Title: Partition
IPC: E04B2/82
Filed: 1972-05-08
Abstract: 1334820 Partition walls O F GASTEIGER 8 May 1972 21287/72 Heading EIW A partition wall comprises a downwardly open ceiling channel 20 with inwardly directed lips 32, 34 against the upper surfaces of which is biased a trim strip 38 by springs 40 in the channel. Plastics faced plywood panels 24 are held in position in a frictionally secured floor channel 22 by their weight and the force of the partially compressed springs 40. The ceiling channel may be provided with outwardly directed flanges on each side which support suspended ceiling panels, Fig. 8 (not shown).
Patent GB-1342357-A (GB)
Title: Fuel injection systems
IPC: F02M45/00
Filed: 1970-06-24
Abstract: 1342357 Supplying fuel to I C engines; fuel injectors C A V Ltd 10 June 1971 [24 June 1970] 30550/70 Heading F1B In a fuel injection system in which a pump 10 supplies fuel through a line 12 to an injection orifice 11a of an injector 11, the flow of fuel to the orifice during each injection stroke of the pump is initially at a restricted rate. In Fig.1 the flow rate is restricted by a restrictor 13 in the line 12 until the pump delivery is sufficient to open a relief valve 15 and displace a spring loaded piston 17. Displacement of the piston 17 opens a by-pass 18 around the restrictor 13. In Fig.2 the initial restricted flow is determined by the spacing between the injector's valve member 20 and its seating 21, which spacing initially increases against the action of a weak spring 22 until limited by the engagement of stops 24. During this initial period relief through the valve 15 occurs and when further relief is prevented by the piston 17 having completed its stroke, pressure in the line 12 increases thereby to displace the valve member 20 against the action of a strong spring 26 until limited by a stop 25.
Patent GB-1345705-A (GB)
Title: Vehicle shoe drum brakes
IPC: F16D65/08
Filed: 1970-05-14
Abstract: 1345705 Drum brake shoes GIRLING Ltd 11 May 1971 [14 May 1970] 23303/70 Heading F2E An arouate brake shoe formed by a channel section member having side flanges constituting a lining platform into which the channel opens, and comprise means whereby a lining component can be removably attached to the shoe, and a positive circumferential location for the lining component whereby torque or drag forces are transferred from the lining to the shoe during braking. To positively locate the lining component 22, 24, the shoe 12 has two upwardly projecting portions 28 which correspond to slots 30 in the component, Fig. 3, or the shoe has axially extending depressions 40 which correspond to inward projections 42 of the component. Corresponding holes in the lining component 22, 24 and shoe 12 enable screws or bolts to be used to detachably secure the component to the shoe, the screws being held by retaining clips 38, described in Specification 1,341,020. Alternatively the lining holes are tapped and screws are inserted through the shoe 12. The lining component 22, 24 has inward projections 26 at its side edges to embrace the shoe edges. Peripherally spaced and/or axially spaced lining components may be carried by the shoe 12.