baber/WOPTO huggingface dataset:
Patent GB-1226756-A (GB)
IPC: F16D65/14
Filed: 1967-06-23
Abstract: 1,226,756. Seals; disc brakes; screw-and-nut mechanisms. GIRLING Ltd. 31 May, 1968 [23 June, 1967], No. 28988/67. Headings F2B, F2E and F2Q. An hydraulic actuator for a vehicle brake comprises two opposed relatively axially displaceable actuator components (e.g. pistons 10, 11) defining a space therebetween for brake fluid, and an automatic adjuster for limiting the axial movement of the actuator components towards one another, the adjuster consisting of a push-rod 17, a nut 18 having a screw-threaded connection with the push-rod and means responsive to excess relative travel between the actuator components for turning the nut in a direction to compensate for such excess relative travel, one of the actuator components being non-rotatable and having therethrough an opening of non-circular cross-section which is arranged to guide the push-rod in its axial movement and be sealed thereto by means of a resilient sealing member 36. The operation of the automatic adjuster is described more fully in Specification 1,190,841. As shown, disc brake pads 14, 16 are operated by opposed hydraulic pistons 10, 11, the latter being connected to the pad 16 by means of a yoke 15. The push-rod in cross-section may be oblong, square, rectangular, oval or elliptical in order to prevent rotation of the piston 11. The resilient sealing member 36 may be a continuous ring of uniform crosssection fitted within a non-circular recess 37, Fig. 2, in either the push-rod or piston; alternatively, the sealing member may be formed of non-uniform cross-section to seat within a circular recess 37a, Fig. 3. For handbrake operation, a cam 23 is moved anti-clockwise to operate the push-rod and force the pistons apart. The automatic adjustment of the push-rod and the piston 10 is effected by the nut 18 which is made rotatable in one direction only on the screw-threaded portion of the rod by means of a clutch arrangement consisting of a torsion spring 31 and friction rings 20, 21. The ring 20 includes a metal washer 24 and is turned relative to the nut 18 by means of balls 28 arranged in cam recesses between ring and nut. The other ring 21 of the clutch is made of P.T.F.E. When the nut 18 moves axially to the right upon applying the brakes, the ring 20 is held by friction at the clutch and the nut 18 is rotated by cam action; when the hydraulic pressure is reduced, the friction at the screw-thread become greater than that at the clutch so that the nut is not turned back by the rotation of the ring 20. Specifications 1,190,841, 1,179,235 and 1,169,577 are referred to.
Patent GB-1227310-A (GB)
IPC: G02F1/03
Filed: 1968-06-07
Abstract: 1,227,310. Lithium niobate. UNION CARBIDE CORP. 7 June, 1968 [8 June, 1967], No. 21983/70. Divided out of 1,227,242. Heading C1A. [Also in Division G2] '  A method of producing a crystal of lithium niobate is described identical to that in the parent Specification 1,227,242.
Patent GB-1229911-A (GB)
IPC: B65D13/00
Filed: 1967-05-26
Abstract: 1,229,911. Ornamental article. H. K. JONES. 24 May, 1968 [26 May, 1967]. No. 24732/67. Heading B6G. [Also in Division B8] Rectangular articles 2 as shown in Fig. 2 are manufactured by mitring the edges of slate blanks making up the sides of the article, forming recesses 3 in the outer surface of one or more of the blanks, gluing into the recess(es) a layer of differently coloured material, e.g. coloured slate or wood and gluing the mitred blanks together. The cutting of the mitres may be effected with diamond-impregnated circular blade, and of the recesses with a grinder having a diamond encrusted wheel. The glue may be epoxy or polyester adhesives. The assembled articles may be polished with fine abrasive paper.
Patent GB-1231569-A (GB)
IPC: B29C48/08
Filed: 1969-09-25
Abstract: 1,231,569. Laminated films with additives. HERCULES Inc. 25 Sept., 1969 [8 Oct., 1968], No. 47260/69. Heading B5B. Thermoplastic synthetic resin films containing additives, normally solid but volatile at extrusion temperature, are made by coextruding into contact with each other in the melt a core layer containing substantially all of said additive and a surface layer on each surface of said core layer containing substantially none of said additive. The laminated film may be extruded in flat or tubular form and may be subsequently stretched to orient at least one of its layers. The core layer and surface layers (which latter may comprise 20 to 80% of the total thickness of the film) may be of the same material. The core layer may contain from 0À05 to 0À3% by weight (of that layer) of the additive, which may be an antistatic agent. The core layer is preferably polypropylene and the surface layers preferably an olefin polymer or copolymer having a lower melting point than polypropylene. The laminate is preferably ¢ to 20 mils thick. Suitable materials for the film layers are the polyolefins such as polyethylene and polypropylene, polystyrene, polyethylene terephthalate, polyvinyl chloride and polyvinyl acetate. Suitable additives are antistatics and slip agents (e.g. glycerol tristearate, erucamide, stearamide, oleamide and polyethylene glycol monostearate); antacids (e.g. calcium stearate); plasticizers (e.g. castor oil, dioctyl adipate and mineral oil); and stabilizers (e.g. dilauryl thiodipropionate, dibutyl-p-cresol and other phenolic antioxidants).
Patent GB-1233803-A (GB)
IPC: B41F27/12
Filed: 1968-06-26
Abstract: 1,233,803. Rotary printing presses. W. MATUSCHKE. 26 June, 1968 [30 June, 1967; 24 Oct., 1967], No. 30407/68. Heading B6C. In a rotary relief press in which a web is printed on both sides during sequential passages through printing units 2 and 3, Fig. 1, each unit comprises an impression cylinder 9, a plate cylinder 6, inking mechanism 11, 12, 13, 14, 16, 17, and a steel supporting cylinder 10 for the impression cylinder. The inking mechanism comprises a forme roller 14 which is continuously wiped clean by a blade 16 the surplus ink being returned to the fountain 11 through a conduit 17. In the inking apparatus of Fig. 2 the ink is automatically maintained at a level 24 in the bight between the roller 14 and an eccentrically adjustable roller 20 by a device 24 which actuates a pump motor 25. In a rotary offset litho press water and ink are supplied to the forme cylinder 32 by an inking roller 33 surplus liquid being removed by a blade 36 and conducted to a separator unit 40 through a conduit 35. The separated ink is returned to the ink fountain 38. The printing plates used in both machines are stuck to the plate cylinders which have smooth external surfaces.
Patent GB-1250430-A (GB)
IPC: H01B11/18
Filed: 1969-08-28
Abstract: 1,250,430. Coaxial cables. B. KLOSTERMARK. 28 Aug., 1969 [22 Oct., 1968], No. 42950/69. Heading H1A. [Also in Division H2] A coaxial cable has alternate rigid sections 1 of equal length connected by joints 3 to flexible sections 2, which are relatively short, so that the cable can be folded up for transport (Fig. 4, not shown). The construction is stated to be suitable for cables of low attenuation and constant impedance throughout. A rigid section has an outer conductor 5 of copper tube and an inner conductor 4 of copper tube or rod. A flexible section has a braided or taped outer conductor 10 and a stranded inner conductor 9. The main cable insulation may be solid or provided by washers 6, 13 with the inner connection 14 insulated by a moulded or split body 24. Inner and outer conductors respectively of the different sections are connected to each other at joints 3 (see Div. H2) and the cable completed by a continuous jacket 17 of P.V.C. or rubber.
Patent GB-1256878-A (GB)
IPC: F15B13/04
Filed: 1968-04-08
Abstract: 1,256,878. Valves. DOWTY ELECTRICS Ltd. 26 March, 1969 [8 April, 1968], No. 16697/68. Heading F2V. [Also in Divisions G2-G3] A spool valve has a central core 21 provided with a fixed land 20 and an adjustable land 22, and is adjustably connected by threaded extension 53 to an actuating spindle whereby the lap between control edges 23, 24 and 30, 40 is adjustable. Land 20 can be integral with the core or, as shown, may be secured thereto by screw 49 and dowel 48. Land 22 is secured against rotation relative to the core by dowel 28 and is normally held against a collar 32 of an adjusting screw 31 by locknut 34. Screw 31 is locked to the core by a drawbolt 39 whose conical end 41 spreads slotted end 43 of the screw. Upon releasing locknut 61, rotation of the whole spool causes axial adjustment thereof to set the lap of edges 30, 40. The spool is then secured against rotation, locknuts 34, 44 are released and screw 31 is adjusted to set the lap of edges 23, 24. Two such valves may be attached to opposite ends of a servopiston for control by a two-stage servo-valve (see Divisions G2-G3). The lands may include metering slots or tapers.
Patent GB-1258090-A (GB)
IPC: B01D37/02
Filed: 1969-05-19
Abstract: 1,258,090. Water filter. R. CONRAD. 19 May, 1969, No. 25506/69. Heading BID. A filter for swimming pool-water comprises a two part housing enclosing three concentric filter elements of hollow annular form, each comprising a filter jacket 36 supported internally by a stack of rings 25. The lower ends of the elements open into a diametral manifold 40 and the elements are clamped in place by a cruciform spider with grooved arms 50 engaging their upper closed ends. Rings 25 maybe of T-shaped cross section (Figs. 7, 9, not shown) or comprise flat annular flanges with dependent lugs lying in radial planes (Figs. 10, 11, not shown). Apertures in the rings accommodate through bolts securing them to base ring 31. Water enters the housing by pipe 72 and up under disc 81, which constrains the water to flow radially outwards and sweep any settled filter aid particles back on to the exteriors of the filter jackets. Filter aid enters the housing through pump (101) which delivers the water. Fig. 1 (not shown) illustrates external pipework whereby the filter elements may be backwashed with unfiltered water.
Patent GB-1264512-A (GB)
IPC: C22C33/04
Filed: 1969-07-08
Abstract: 1,264,512. Casting processes. SUMITOMO METAL INDUSTRIES Ltd. 8 July, 1969, No. 34433/69. Heading B3F. [Also in Division C7] Austenitic stainless steel ingots with reduced tendency to surface cracking are made by centrifugal casting, the steel composition having been adjusted at the time of melting so as to satisfy the condition where  and As described,- a 600 mm. diameter ingot is rotated at 1 rev./sec. for 10 mins. after casting and is then decelerated at a rate in the solidifying front of less than 0À27 cm./sec.<SP>2</SP>.
Patent GB-1266264-A (GB)
IPC: A45B19/00
Filed: 1970-07-07
Abstract: 1,266,264. Shortenable umbrellas. BREMSHEY & CO. July 7, 1970 [July 25, 1969 (3); Oct.25, 1969(2); Dec.24, 1969; Feb. 5, 1970], No. 32953/70. Heading A4P. A shortenable umbrella frame comprises three part telescopic spokes 6, Figs. 2, 2a, pivoted to a crown 9, a preferably two or three part telescopic stick 1, an auxiliary slider 8, auxiliary struts 10, spoke braces 13, a main slider 7, and main struts 11 pivoted to the struts 10 and via auxiliary links 12 to the braces 13, the links 12 being in tension when the frame is open and assisting in pulling the braces 13 into the extended positions on opening of the frame. The links 12 may be of flat strip or made of wire 12<SP>1</SP>, Fig. 32, and are preferably bent near their middle so that they may become slightly extended on closing the frame to thereby store energy to assist in opening the frame. The struts 10 and 11 and the braces 13 are of U-shaped section so that the links 12 and struts 10 and 11 may be nested within the braces 13 when the frame is collapsed. Inner parts 6a and middle parts 6b of the spokes are of U-shaped section, the outer parts 6c being of solid circular section. The inner ends of spoke parts 6c are pivoted by pins 23 to the outer ends of the braces 13, the pins 23 sliding in slots 24 in canopy stitch buckles 22 slideable over spoke parts 6a and 6b and having apertures 25 by means of which a canopy 27 is attached to the frame by stitches 27<SP>1</SP>. A hollow handle (5), Fig.31 (not shown), may receive slider 7 when the frame is collapsed and shortened, the slider 7 being retained in position when the frame is open by a spring urged catch 68. An alternative closed hollow handle (5), Fig. 36 (not shown), is slidably retained on one end of the stick by a central pin (71) slidable within the stick. The slider 8 may be made of plastics material with a resilient catch (45), Figs. 20, 22 (not shown) formed integrally with a slider bush 8<SP>1</SP>, catch (45) engaging in a slot in the top part of the stick when the frame is open and being released therefrom by engagement with a lower stick part on shortening of the stick. In an alternative embodiment, Fig.32, an additional catch system is provided comprising an auxiliary slider bush 8<SP>11</SP> slideable through main slider 7 and having slots 57, 58, pins 61, 62 attached to the stick, and urged by a spring (R), Fig. 34 (not shown), and a main slider bush 7<SP>1</SP>. After commencing opening the frame by upward movement of slider 7, the slider 8 moves up the stick until pin 61 engages with the bottom of slot 58. Slider 7 continues to move upwards, with slider 8 stationary, to spread the spokes until bush 7<SP>1</SP> pushes the pins 61, 62 inwards sufficiently to allow them to run under a profiled surface of bush 8<SP>11</SP> between slots 57 and 58 and thence into slot 57, the slider 8 ceasing upward movement when pin 61 engages the bottom of slot 57.
Patent GB-1306352-A (GB)
IPC: F01C1/08
Filed: 1969-01-29
Abstract: 1306352 Moulding rotors PLENTY & SON Ltd 27 Jan 1970 [29 Jan 1969] 5004/69 Heading B5A [Also in Division Fl] An intermeshing rotor of a positive displacement screw pump or Rootes blower, is moulded by casting settable plastics material, preferably under vacuum, around a metal or carbon fibre reinforced plastics core, within a mould shaped to correspond to the configuration of the rotor. The plastics material may comprise nylon, epoxy, phenolic, or p.v.c. resin, preferably filled with 90% or more of cast iron powder, bronze powder, graphite, carbon fibre, slate and stone. The metal core may be a straight or twisted polygon or may comprise a cylinder 26 or be of a shape 32 corresponding to that of the rotor, as in the described embodiment wherein male 10, and female 12, pump screw rotors intermesh at a running clearance within an external casing, the sealing between the screws being improved by projecting fin seals 23.
Patent GB-1307052-A (GB)
Title: Multi-compartment semi-rigid container
IPC: B65D75/34
Filed: 1971-09-08
Abstract: 1307052 Multicompartment containers and packages OSCAR MAYER & CO Inc 8 Sept 1971 41868/71 Headings B8C and B8D A plastics container comprises two contiguous cavities 6, 7 thermoformed from a sheet 12, the side walls of the cavities being integrally interconnected at 16. The container is closed by a sheet 22 formed with two bosses 20, 21, the walls of which are integral at 23. The sheet 22 is attached to the sheet 12 by heat-sealing or by an adhesive which permits the sheets to be peeled apart. Either the sheet 12 and/or the sheet 22 may be transparent. The cavities 6, 7 are ribbed at 13.
Patent GB-1309906-A (GB)
Title: Temperature sensors
IPC: G01K7/38
Filed: 1969-06-09
Abstract: 1309906 Temperature sensor ENGLISH ELECTRIC CO Ltd 9 June 1970 [9 June 1969] 29101/69 Heading G1N [Also in Division H1] A temperature sensor comprises a closed magnetic core from which a torque 11 extends so as to be heated to the temperature to be measured, an input winding 12 on the core energized from an A.C. source and an output winding 13 coupled to the core and connected to a meter 14, the permeability of the core being temperature dependent, and the core being formed of T-shaped laminations Fig.2a (not shown), interleaved with U-shaped laminations so that the meter indicates the temperature of the core. The material of the T is a nickel-iron alloy having a substantially higher dependence of permeability on temperature e.g. an iron-cobalt vanadium alloy or a nickel-iron alloy containing 70% or more nickel. Alternatively both U and T laminations are temperature sensitive, their characteristics being complementary so as to produce a linearly varying output signal. It is stated that input and output windings may both be wound on the middle limb of the U.
Patent GB-1310022-A (GB)
Title: Flame-failure safety device
IPC: F23N5/10
Filed: 1970-04-17
Abstract: 1310022 Controlling burners UNITED GAS INDUSTRIES Ltd 19 April 1971 [17 April 1970] 18454/70 Heading F4T A flame failure safety device for a gas burner comprises a housing 10 defining a gas path between an inlet 11 and outlet 12 and through a tube 14 which is a friction fit in a bore 15; a valve member 24 is urged by a spring 25 against one end of the bore 15 and an electromagnet 20, which is energized by a temperature sensitive device, e.g. a thermocouple (not shown) heated by the burner, holds the valve member in an open position, the valve member returning to its closed position under the influence of spring 25, when the electromagnet is de-energized due to extinguishing of the burner; the safety device further including a manually operable mechanism which cuts off the gas supply to the burner by moving the tube 14, into engagement with the valve member 24 when the latter is in its open position. The manually operable mechanism comprises a slidably mounted spring loaded spindle 26 having a push button 29 and a radially extending projection 31 which co-operates with an extension 17 provided on the tube 14. The push button 29 is slidable in a tube 35 and has a peg 38 which engages in one of two diametrically opposed slots 36, 37 provided in the tube 35. In the embodiment illustrated outlet 12 leads to a pilot burner and a further outlet 13 leads to a main burner. A further valve member 33 is slidably mounted on the spindle 26 and is urged by a spring 34 towards the upper end of the bore 15. To ignite the pilot burner the push button 29, with the peg 38 in slot 36, is depressed, the free end of the spindle unseats the valve member 24 from the tube 14, allowing gas to flow via outlet 12 to the pilot burner which heats the thermocouple thus maintaining the valve member 24 open. The spring 34 urges the second valve member 33 into engagement with the bore 15, preventing gas flow to the main burner until the button 29 is released, the projection 31 lifting the second valve member 33 from its seat. To shut off the gas supply manually the push button 29 is rotated so that peg 38 engages in slot 37, the button is depressed and projection 31 engages the extension 17 on tube 14 pushing the latter into engagement with the valve member 24, Fig. 3. When the button is released the tube 14 remains in engagement with member 24 due to its friction fit, the thermocouple eventually cooling and allowing the tube 14 and member 24 to return to their original position, Fig. 1, under the influence of spring 25.
Patent GB-1310709-A (GB)
Title: Printing devices
IPC: B41J1/32
Filed: 1970-07-18
Abstract: 1310709 Selective printing GROSS CASH REGISTERS Ltd 7 July 1971 [18 July 1970 21 Aug 1970] 34928/70 and 40285/70 Heading B6F A print wheel includes printing characters 13 on one part of its periphery and ratchet teeth on another part of its periphery, and the part of the wheel carrying the ratchet teeth is of reduced thickness with respect to the part carrying the printing characters. A spring may be attached to a pin 28 to bias the wheel anticlockwise for use in a printing machine having a pawl to arrest the wheel at a required position. A slot 23 is provided for a resetting bail.
Patent GB-1316216-A (GB)
Title: Method of producing reactive anthraquinone dyestuffs
IPC: C09B5/14
Filed: 1971-08-11
Abstract: 1316216 Amides NIPPON KAYAKU CO Ltd 11 Aug 1971 37804/71 Heading C2C [Also in Division C4] In Example 4 N-methylolchloroacetylglycineamide is prepared by reacting glycinethyl ester with chloroacetyl chloride to form chloroacetyl glycinethyl ester which is then reacted with aq. ammonium to form the glycine amide which is then N-methylolated at the amide nitrogen atom with 35% formalin.
Patent GB-1316967-A (GB)
Title: Vehicle window regulators
IPC: E05F11/50
Filed: 1969-08-08
Abstract: 1316967 Window operating mechanism WILMOT-BREEDEN Ltd 27 July 1970 [8 Aug 1969] 39691/69 Heading E2M A self-locking device for a slidable vehicle window regulator comprises a one-piece moulded drum 6 having a hub 8 adapted to receive a winding handle and rotatably mounting an output shaft 18, the shaft having a drive plate 20 with an arm 22 engagable by the drum on rotation; a helical spring 10 surrounding the drum and having inturned legs 14 engageable in a recess 15 in the drum; the spring pressing against a housing 1 to thereby brake rotation of the drum; rotation of the drum engaging the leg 14 to wind up the spring to thereby disengage it from the housing; the drum being in bearing engagement with the housing at two points 9a, 9b between which the spring is located. As shown, the shaft 18 is a press fit in an extruded, sintered portion 17 comprising a pinion 17a and a part 17b engaged in a bore 19 of the drum, the shaft engaging an outrigger bearing 23a forming part of a back plate 3 of the regulator. The drive plate is splined on the shaft 18 and has a tongue 22 engageable in the recess 15, the tongue having sections of differing width and permitting some lost angular motion. The drum and housing may be stepped as shown and the drum may have radial slits 23 permitting clearance for the spring legs 14 when fitting the spring. The drum may be a plastics injection moulding or a metal die-casting.
Patent GB-1317067-A (GB)
Title: Bearing assembly for use for example in watt-hour meters
IPC: G01R11/12
Filed: 1971-08-17
Abstract: 1317067 Electricity-meter bearing JAIPUR METALS & ELECTRICALS Ltd 17 Aug 1971 38550/71 Heading F2A A bearing for a vertical shaft, e.g. of an electricity meter, comprises a support member 2 in which the shaft is located, and a bearing plate 6 having a surface of P.T.F.E. with which the support member engages, the support member and bearing plate being located in a housing 8 having an opening at its upper end through which the shaft passes. The P.T.F.E. surface may be reinforced with glass, graphite or copper powder. The bearing plate 6 is supported in a member 12 and an annular sheath 14, and spring loaded with respect to the housing by a spring 16. The loading in the spring may be varied by a nut 18. The lower end 4 of the support member 2 may be ball shaped and the surface of the bearing plate 6 may be concave.