baber/WOPTO huggingface dataset:
Patent GB-1331289-A (GB)
Title: Process for adhering a rubber mixture onto a backing or  supporting material
IPC: C08J5/04
Filed: 1970-08-22
Abstract: 1331289 Polyoxymethylenes in vulcanization of rubber articles DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 22 Oct 1970 [24 Oct 1969] 50193/70 Heading C3P and C3Q [Also in Division B2] A rubber mixture containing at least one rubber, at least one filler, and at least one phenol and/or amine capable of resin formation with formaldehyde is adhered to a backing material by vulcanizing said mixture on to the backing, the mixture additionally containing an adhesion promoter (i.e. which is a source of formaldehyde) of the formula HO(CH 2 O) n-  H 1  where n is 100 to 1000. The polyoxymethylenes may be obtained by tempering powdered paraformaldehyde, i.e. HO(CH 2 O) m  where m is 30 to 100, at 60 to 100‹ C. for 1 to 4 days at normal pressure or 2 to 3 hours at reduced pressures. A lower molecular weight starting material (m less than 30) can also be used if a finely ground solid acid, e.g. oxalic acid, is added and the mixture then tempered at 20 to 24 hours at 100‹ C. or 2 hours at 80 to 90‹ C. if reduced pressure is used. In examples, the rubbers are styrene-butadiene/natural rubber blend, chlorosulphonated polyethylene, chloroprene and ethylene-propylene terpolymer, the fillers are carbon black, silica zinc oxide, and magnesia usta, and the phenol is resorcinol. Other conventional additives are also present e.g. sulphur acceleration and plasticizers. The polyoxymethylene has n equal to 400 to 500 and is obtained by treating paraformaldehyde with 5% by weight sulphuric acid, washing with water, filtering and then heating the residue for 3 days at 80‹ C. Diphenylguanidine is also included in one recipe. Hexamethylene tetramine is used in comparison experiments. The substrates used are unprepared polyester and polyamide.
Patent GB-1106759-A (GB)
Title: Improvements in or relating to methods of and/or means for flushing the teat cups of milking machines
Inventor: GRAHAM JOHN KEITH
Filed: 1965-11-26
Abstract: 1,106,759. Cleaning milking equipment WAIKATO BRASS FOUNDERS Ltd. 18 Nov., 1966 [26 Nov., 1965], No. 50373/65. Heading A1M. Apparatus for use in cleaning the milk droppers and teat cups of milking equipment, comprises an induction tube 5 adapted to be inserted in the milk dropper pipe, and automatic valve means 7 having an air inlet 8 and a water inlet 9 the arrangement being such that in use when vacuum is applied to the milk dropper the automatic valve means moves to a position such that entry of air or water through the valve means into the induction tube is prevented and when the vacuum is removed the valve means moves to the position shown so that water can be injected through inlet 9 into the milk pipe and teat cups. The valve as described comprises a ball 15. The tube 5 is preferably inserted between the top of the milk dropper tube and the tubing connected to the milk connection of the milking claw.
Patent GB-1365025-A (GB)
Title: Fabrication of heat exchanger tube bundles
IPC: F28F9/02
Filed: 1972-11-01
Abstract: 1365025 Tubular heat exchangers SUN SHIPBUILDING & DRY DOCK CO 1 Nov 1972 [2 Nov 1971] 50374/72 Heading F4S [Also in Division B3]  A heat exchanger fabricated from flared tubes 1 which have their ends machined by a hobbing process (see Division B3) comprises a bundle (51), Fig. 21 (not shown) of such tubes which are attached by electron beam welding to solid stubs or bolts 4, the stub ends being used for mounting flanges. The stubs fill out the irregular outer boundary of the tube bundle to form a cylindrical boundary as well as providing a mounting 39 in an outer shell. The flaring of the tubes at both ends results in the central portions being spaced from each other to allow fluid to circulate in the assembled heat exchanger. In an alternative embodiment, a multi-piece flange construction is utilized which includes a pair of bars 40, 40<SP>1</SP> to which solid stubs are welded, or tubes and stubs. The final welded composite structure is machined to a circular outer boundary (41) (57), Figs. 19, 20 (not shown).
Patent GB-1118320-A (GB)
Title: Portable photographic light
IPC: G03B15/06
Filed: 1965-11-26
Abstract: 1,118,320. Reflectors. SYLVANIA ELECTRIC PRODUCTS Inc. 26 Nov., 1965 [27 Nov., 1964], No. 50427/65. Heading F4R. [Also in Division G2] A reflector for producing a substantially rectangular light pattern, especially for photography, comprises a substantially paraboloidal portion 1, those zones of which would reflect light outside the pattern being replaced by reflecting flares 5, 6, 9 and 10 (not shown) sufficiently different in curvature from the main part, to project light on to the pattern, opposite pairs of flares being substantially identical, and being conical in the centre region and blending to paraboloidal at the edges, the paraboloidal portions having a shorter focus than the main paraboloid. The reflector is formed with a face plate 4 having an upstanding rim and with a circular opening 2 at the base of the main portion to receive a lamp, which may be a single ended tungsten-iodine lamp, at the focus. The flares 9, 10 may terminte in slightly conical pieces 7 (not shown) and 8 which may be non- reflecting. The surface of the reflector may be dimpled.
Patent GB-1526966-A (GB)
Title: Terminal unit for the output of conditioned air from a centralised conditioning system
IPC: F24F11/76
Filed: 1975-12-09
Abstract: 1526966 Valves A SERRATTO 9 Dec 1975 [11 Dec 1974] 50523/75 Heading F2V [Also in Division F4] A terminal unit for an air-conditioning system comprises a conduit 6 having a diverging outlet 7, an inverted V-shaped device (4, Fig. 5) movably located within the outlet 7, and a thermostatic device 5 located beneath the walls 15, 18 of the device (4) for operating the device (4) to control the cross-sectional area of the outlet ports 3. The device 5 comprises two cylindrical thermostatic elements 28 associated with pistons 29; one piston 29 being in contact with a threaded rod 35 provided with a control wheel 45. The rod 35 passes through an end of an actuating lever 36 rotatably mounted about a pin 37. The lever is provided with adjusting screws 40, 41 for setting the minimum and maximum positions of the outlet ports 3. The control lever is fixed to a time rod 43 which is attached to a rod 19. The rod 19 is of a C- shaped metal section and is connected by two levers 20 to a guiding and support member 17 of the conditioned air flow means (4). In operation, movement of the lever 36 produces displacement of the rod 19 and therefore a downward or upward movement of the means (4). The unit also includes a flow path 47, 48 for conveying conditioned air directly to the device 5; a pressure operated valve 51 (see Fig. 6) being included in the flow path so as to allow conditioned air to the device 5 when the pressure of the conditioned air exceeds a predetermined value.
Patent GB-1415864-A (GB)
Title: Extended filter bag
IPC: A47L9/14
Filed: 1972-11-03
Abstract: 1415864 Re-entrant filter bag GAF CORP 3 Nov 1972 [19 Nov 1971] 50770/72 Headings B1D and B1T. An outward-flow filter bag has a mouth and two lateral extensions (Fig. 1, not shown) which in use are turned inside out to form respective re-entrant pockets 7, 7', each accommodating a filtrate drainage member of openwork form (Fig. 3, not shown), a spacer 15 separating the exterior surfaces of the pockets inside the bag. Fig. 4, not shown, illustrates a bag in which a more extended filtering area is provided by double re-entrant pockets. The bag may be felt, the drainage members metal or plastics. Figs. 3 and 5 (not shown) illustrate alternative drainage members and spacers. The bag is made by joining two halves, and_ may be employed, with or without an external supporting cage, within or without a housing.
Patent GB-1114037-A (GB)
Title: Novel indicator light circuitry
IPC: H05B39/09
Filed: 1966-11-14
Abstract: 1,114,037. Transistor oscillators. GENERAL ELECTRIC CO. 14 Nov., 1966 [3 Jan.. 1966], No. 50865/66. Heading H3T. [Also in Divisions G4 and G5] Two different modes of operation of a tape recorder are indicated by a lamp 22 which gives a steady light during one mode and an intermittent light during the other, the lamp being connected in series with a first transistor 24 and a first D.C. voltage source to give a steady light on operation of a first switch 19. Operation of a second switch 20 adds a second voltage source and a second transistor 14 to the effective circuit which then functions as a multi-vibrator so that the lamp 22 flashes.
Patent GB-1169364-A (GB)
Title: Heat Exchangers
Inventor: WINDLEY ROYCE OSBORNE
IPC: F28D7/16
Filed: 1965-12-01
Abstract: 1,169,364. Tubular heat exchangers. JOSEPH LUCAS (INDUSTRIES) Ltd. 15 Feb., 1967 [1 Dec., 1965], No. 50923/65. Heading F4S. In a tubular heat exchanger the flow path through the tubes 11 is from an inlet duct 12 to an outlet duct 13 located side-by-side and engaging one another through rubbing strips 15 which permit relative sliding movement between the ducts arising from expansion when the heat exchanger is in use. The tubes shown are connected to a return header 14 and this is fixed in a support structure (not indicated). Further rubbing strips 16 are provided on the ducts and these are in sliding contact with portions of the support structure. In use, turbine exhaust gas flows through the tubes and heats air which is blown over the tubes by a fan.
Patent GB-1363936-A (GB)
Title: Reels for tapes or other elongate flexible material
IPC: G03B21/11
Filed: 1971-11-03
Abstract: 1363936 Tape reels RICOH KK 3 Nov 1971 [14 Jan 1971] 51055/71 Headings B8M and B8R A reel for tape or other elongate strip material comprises a core 35, and a ring 36 having a longer circumference than that of said core 35 and extending loosely around the core, the arrangement being such that when the core 35 is rotated, the ring 36 is deformed so as to engage the leading end portion 31 of the material which is guided by a guide member 37 surrounding the reel, the material being thereafter wound around the core. The ring may be formed with a plurality of notches or recesses at its peripheral edges to aid in the deformation. In a further embodiment the ring is formed of rubber. Alternatively, the ring may be of fabric with a plurality of strip engaging means, e.g. blocks, bonded to the outer surface thereof. In a further embodiment, the ring is provided with a plurality of spaced projections on its outer peripheral surface, the projections engaging a similar projection on the end of the strip material In another embodiment, the ring is of flexible material and carries a plurality of tongues on its outer surface, the tongues being arranged to extend otuwardly upon rotation of the ring and to lie flush with the ring surface during winding of the strip material. The core is preferably provided with an annular recess into which the ring is pressed by the spirally wound strip material.
Patent GB-1254038-A (GB)
Title: Improvements in and relating to fluid couplings
IPC: F16D35/02
Filed: 1969-10-17
Abstract: 1,254,038. Hydraulic coupling. USUI KOKUSAI SANGYO K.K. 17 Oct., 1969 [16 Nov., 1968], No. 51157/69. Heading F2C. The supply of liquid to and from a working chamber 6 of a viscous shear type fluid coupling is controlled by output speed responsive centrifugal valves 8, 10 which maintain the output speed substantially constant. As shown a partition 2 divides a driven housing 1 into a working chamber 6 containing a driving rotor 3 and a reservoir 5. Outlet and inlet ports 9, 11 in the partition 2 are respectively closed by the valve 8 and opened by the valve 10 below a predetermined output speed whereby fluid flows from the reservoir to the working chamber to reduce the slip of the coupling and increase output speed. Above the predetermined speed centrifugal force on the valves 8, 10 overcomes springs to open the valve 8 and close the valve 10. Thereafter an impact pump 7a forces liquid from the working chamber through the port 9 into the reservoir to reduce the output speed. The valves thus operate to maintain the output speed substantially constant. In Fig. 8 (not shown) an additional chamber is provided between the working chamber and the reservoir and fluid which flows from the working chamber into the additional chamber is pumped by an impact pump into the reservoir. In Fig. 5 (not shown) a driving housing surrounds a driven hollow rotor, the space within the rotor forming the reservoir and containing the centrifugally controlled valves.
Patent GB-1467149-A (GB)
Title: Engine intake manifold
IPC: F02M27/08
Filed: 1974-12-26
Abstract: 1467149 Treating charge NISSAN MOTOR CO Ltd 26 Nov 1974 [30 Nov 1973] 51190/74 Heading F1B An engine intake manifold 10 has a riser 14 provided at its base with an opening 24 closed by a diaphragm 40 of Piezo-electric material, e.g. barium titanate or ferrite, such that when a high frequency alternating voltage is applied across the diaphragm the latter vibrates to vapourize liquid fuel collecting adjacent thereto. The voltage is applied at engine starting, when ignition and thermostatic switches 54, 56 are closed, by oscillator 50 connected to a conductive screw 44 mounted within insulated plug 30. A conductive spring 48 bears against screw 44 and urges a terminal 46 against side 49 of diaphragm 40, the opposite side 42 of which is grounded via manifold shoulder 28. To damp vibration of diaphragm 40 the chamber 58 adjacent thereto is filled with liquid and communicates via radial passage 38 with a further chamber 60 containing both liquid and pressurized gas. When the engine has warmed-up, thermostatic switch 56 opens and diaphragm vibration ceases.
Patent GB-1113507-A (GB)
Title: Buckle for safety belts and the like
IPC: A44B11/04
Filed: 1965-12-02
Abstract: 1,113,507. Buckles. O. L. LINDBLAD. 2 Dec., 1965 [5 Dec., 1964], No. 51223/65. Heading E2A. A safety-belt buckle 3 is provided with a duct 5 for one belt end portion, 2a, the two ends 5a, 5b of the duct 5 terminating on the inner side of the buckle when in its normal position of use, the inner side of the buckle being provided with a part 6 against which the belt-end portion 2a emerging from the duct, is held when the belt-end portion is under tension. As shown, in which a belt-end portion 1a is threaded through a channel formation 8, 9, the buckle is released from the portion 2a by swinging the buckle, in an anticlockwise direction from the position shown.
Patent GB-1119645-A (GB)
Title: Improvements in or relating to agricultural or like mowers
Inventor: BAMFORD RUPERT CYRIL
IPC: A01D75/20
Filed: 1965-12-03
Abstract: 1,119,645. Rotary-scythe mowers. BAMFORDS Ltd. 1 Dec., 1966 [3 Dec., 1965], No. 51331/65. Heading A1F. [Also in Division F2] In a rotary-scythe mower, of the kind having a frame 10 projecting laterally from, and supported by, a tractor 9, and having a series of drums 11 carrying rotaryscythe cutters 12 pendant therefrom, a safety-guard 13 surrounds the entire frame at a level above the rotary cutters the outermost end-part 14 of the frame being pivotally displaceable towards the tractor by means operable from the driver's seat, to facilitate cutting close to a hedge or wall, and being returnable automatically except when so displaced. As shown, the raising means comprises a pull-cord 20, the guard-portion 14 being either returned by gravity or by a spring. Locking members are provided adjacent to the pivot so that the portion 14 cannot inadvertently be raised and can only be raised after the locking members have been released manually. The locking members are selflocking on return of the part 14 to its normal position.
Patent GB-534177-A (GB)
Title: Improvements in or relating to battery holders for electric lamps
IPC: F21L4/00
Filed: 1941-01-10
Abstract: 534,177. Electric battery lamps. PEARSON, S. F. Jan. 10, 1940, No. 515. [Class 39 (ii)] Two cells 1 are fitted in a metal casing 3 by means of an insulated stand 8 bridging terminals at one end of the cells and a bridge piece 9 which connects the other terminals in circuit, and is insulated from and resiliently mounted in the casing. The stand 8 may be resiliently held and the insulation and resilient mounting of both members 8 and 9 may be effected by short pieces of rubber tubing 7 fixed on but projecting from the ends. A tongue 5 projecting from the stand 8 contacts with the lamp 6 and the switch 10 may contact with the bridge 9. The arrangement of the bridge piece in two insulated parts whereby a series connection of the cells is obtained is described with reference to Figs. 6 - 13 (not shown).
Patent GB-1485811-A (GB)
Title: Imaging system
IPC: G03G15/04
Filed: 1974-11-28
Abstract: 1485811 Half-tone images XEROX CORP 28 Nov 1974 [28 Dec 1973(2)] 51589/74 Heading G2M A half-tone image is produced on a photosensitive member by exposing through a lenticular lens element out of focus with the member, the array providing a soft dot pattern wherein 75% of the member under each lenticule receives information at 25% of the highlight density received by the central 25% of the member area under each  lenticule. The lens element may be optically poor but in focus to achieve this effect, or the element may be optically good but out of focus. The element may be spaced from, in contact with, or integral with the photo-sensitive member. The element may be composed of cylindrical or spherical lenses, and may be a single plate or two plates, which may or may not be in contact.
Patent GB-1261280-A (GB)
Title: Method for production of a structure of light conducting glass optical fibres
IPC: C03C25/106
Filed: 1969-10-21
Abstract: 1,261,280. Optical fibre structures. NIPPON SHEET GLASS CO. Ltd. 21 Oct., 1969 [23 Oct., 1968], No. 51637/69. Heading C1M. A structure of glass optical fibres is produced by cementing together into a bundle in parallel relationship a plurality of glass optical filaments, each comprising a core of glass sheathed in glass of a lower refractive index than that of the core glass or multifilaments (a multifilament comprises, e.g. 4-20 filaments fused together) with a binder which evaporates or sublimes below the glass fusion temperature but which is solid at the temperature of any cutting or shaping operation, heating the bundle to cause sublimation or vaporization of the binder and further heating to fuse the filaments or multifilaments together. The binder may be poured into the interstices of a parallel bundle of fibres and then solidified, or fibres may be coated with binder while winding, e.g. onto a drum. The binder may be water; a C 8-18  monocarboxylic aliphatic acid (e.g. caprylic, capric, lauric, myristic, palmitic or stearic acid); aliphatic C 4-6  dicarboxylic acid (e.g. succinic. or adipic acid); a halogen-substituted C 2  carboxylic acid (e.g. chloroacetic acid); aromatic C 6-10  hydrocarbons (e.g. benzene, naphthalene); halogenated benzene (e.g. p-dichloro-benzene); hydroxy-substituted benzene (e.g. phenol or p-cresol); dlcamphene; 1-menthol or cetyl alcohol. The binders may be used in a solvent, e.g. methanol, ethanol, acetone or diethyl ether. When water is used it may be solidified by cooling, and the cutting or shaping carried out on the icecemented bundle. The vaporization or sublimation.may be carried out at 20-400 C. and under. a reduced pressure of 0À1-5 mm. Hg, and the heat fusion at 450-700 C. and/or under pressure. from formers, e.g. of copper, graphite, boron nitride: or silicon nitride. The invention is particularly useful for cutting face plates for TV tubes of large diameter.
Patent GB-1212540-A (GB)
Title: Improvements in or relating to tape recording and reproducing apparatus
Inventor: WHITEHEAD CECIL THOMAS
IPC: G11B23/12
Filed: 1967-11-15
Abstract: 1,212,540. Tape recording &c. apparatus- INTERNATIONAL COMPUTERS Ltd. 31 Oct., 1968 [15 Nov., 1967 (2)], Nos. 51901/67 and 51902/67. Heading G5R. A tape recording and reproducing apparatus includes a base-plate 1 detachably receiving a rectangular cassette 5 in which tape is guided 13, 14, 8 from one corner, along one side 9, out through a first aperture 11 and back through a second 24, both in a second side 10; guides 25, 26 in the corner diagonally opposite the first causing the tape to fold loosely. As shown, endless magnetic or punched tape is guided out of the cassette by pressure pad 12 and roller 15 and is driven by a selectively clutched capstan 4 and resiliently mounted roller 21 or PTFE pressure pad. The cassette walls may carry adhesive-backed tape carrying glass spheres to reduce friction and static build-up, and the cassette is mounted on the base-plate by studs or a flange 29 and clips 28. To change the tape it is cut near the roller 15 and spliced with adhesive tape to the beginning of a new reel of tape 30 journalled on spindle 31. The new tape is fed into the cassette while manually withdrawing the old until the beginning is exposed again and is joined to the end to form an endless loop.
Patent GB-1269330-A (GB)
Title: Thermal lance coupling
Inventor: FASSLER EDWIN EDUARD
IPC: F16L29/00
Filed: 1970-11-02
Abstract: 1,269,330. Thermal lances. E. E. FASSLER. 2 Nov., 1970 [20 Nov., 1969], No. 51952/70. Heading F4T. [Also in Division F2] A device for coupling a tubular thermal lance (not shown) to an oxygen supply pipe (not shown) comprises a casing 1 formed with a passage 2 for receiving the lance, a sleeve 11 deformable by a nut 14 to grip the lance, a nipple 18 for attachment of the oxygen supply pipe, and a hollow plunger 5, which is depressible by the lance to displace a valve 3 from its seating against the action of a spring 4. The sleeve 11 may be of rubber and located between rigid rings 10 and 12. A guard 15 is screwed on to the nut 14. Annular steps 8 and 9 on the plunger 5 facilitate centralizing of lances of differing external diameters. If the lance is not changed when a predetermined maximum length of it has burnt away, the flame from the short stub of lance left within the device will burn the sleeve 12 to free the stub, whereupon valve 3 will close.
Patent GB-1128525-A (GB)
Title: New or improved method for producing confections
Inventor: HYDE KENNETH ARMITAGE
IPC: A23G9/22
Filed: 1965-12-08
Abstract: 1,128,525. Wrapping refrigerated confections. MIDLAND COUNTIES DAIRY Ltd. 5 Dec., 1966 [8 Dec., 1965], No. 51968/65. Heading B8C. [Also in Division F4] Molten ice cream or similar confections are delivered directly into pockets moulded in a heated thermoplastic wrapping web where they are refrigerated so that they set before the web is cut to form packages. A cover web may be heat sealed over the filled pockets to form covers which are then pierced so that a stick can be inserted before the confection sets. Refrigeration may be by spraying the filled compartments with liquid nitrogen, by blowing cool air, or by passing the filled pockets through cooled channels or through a bath of liquid nitrogen. The web is first heated and the pockets then formed by male and female dies which may be disposed so that rows of pockets are formed across the web. The rows may be finally cut from the web as a unit, or the filled pockets may be delivered singly. The wrapping material may be polystyrene or paper backed by aluminium foil.
Patent GB-1126100-A (GB)
Title: Improvements in extrusion heads
Inventor: BECKETT FREDERICK JAMES
IPC: B29C48/09
Filed: 1966-11-21
Abstract: 1,126,100. Variable diameter tube-extrusion. ESSO RESEARCH & ENG. CO. 21 Nov., 1966, No. 52044/66. Heading B5A. In an extrusion head, the diameter of a rubber or plastics tubular extrudate may be varied by the addition or subtraction of discs 13 which abut a conical core 11. The discs are held in position on a stem 15 by nuts 16, 17 and stem 15 may be axially adjusted in position to alter the dimensions of flow path 12, and hence the thickness of the tubing, by the addition or subtraction of washers 14. An extrudate of non- uniform wall thickness may be obtained by using, e.g. oblate discs 13, see Fig. 5 (not reproduced). Air or lubricant may be introduced via a conduit 9 in mandrels 3 and 6 and stem 15. The head may be heated electrically or by the circulation of water or oil. In a modification, Fig. 3 (not shown), a mandrel (18) which converges downstream is used in co-operation with removable discs (19).