baber/WOPTO huggingface dataset:
Patent GB-470801-A (GB)
IPC: G03C7/14
Abstract: 470,801. Colour photography. LASSUS ST. GENIES, A. H. J. DE. June 19, 1936, Nos. 17152 and 17153. Convention dates, June 27, 1935 and March 3, 1936. [Class 98 (ii)] A method of copying lenticular films by projection consists in homothetically displacing in front of the two films slotted screens, adapted to illuminate on each of the films, homologous parts, which are relatively narrow and parallel, whereby the whole of the utilizable aperture of the copying objective may be employed. As shown in Fig. 1, F and F<1> are the original and copy films, 0 the copying objective, R and R<1> movable screens having parallel slots S, and S<1> and D is a screen defining the shape and size of the utilized surface of the lightsource. D<1> is a real image of D, formed by all the optical systems, and may comprise an actual screen. The additional optical system A produces an image of D at the distance of natural convergence of the film F. Additional optical systems B and C may also be used. In a modification, Fig. 2, the screen D is dispensed with and a thick member having an extension P and a tapering slot is oscillated in front of the original film comprising an electric lamp filament. A linear light-source L provided with a reflector X or comprising a narrow diffusing element on which a beam is projected by a condenser may coincide with the apex of the slot. This device may be replaced by two distinct members, each having a separate extension. A similar device may be arranged in front of the copy film. The slots S, S<1>, Fig. 1, may be stationary and the films F, F<1> and screens D, D<1> may be moved, whereby the apparatus may function as a continuous printer. The image of the original film may be projected on an intermediate screen which may be rephotographed on the copy film. The slot S<1> may lie in the interior of the copying objective O. Additional screens in proximity to the original and copy films and having movements homothetic to those of screens R and R<1> may be provided. Lenses or prisms altering the aperture of the elementary beams of the copy films may be arranged in the aperture of an additional screen near the copy film. The distance of convergence of the copy film may be altered by the provision of a movable optical system in proximity thereto moving with the additional screen near the copy film.
Patent GB-1437233-A (GB)
Title: Apparatus for the storage of particulate solid material and its use in the preparation of slurries or solutions
IPC: B01F15/00
Filed: 1973-10-09
Abstract: 1437233 Pneumatic conveyers MONSANTO CO 9 Oet 1973 [10 Oet 1972] 47152/73 Heading B8A A weatherproof container has a sealable charging opening, a porous floor beneath which is an enclosed air space, a sealable air inlet and a sealable discharge conduit. Particulate material is stored in the container until it is required to discharge it, when compressed air is supplied to the enclosed space to fluidize the material which then flows out through the discharge conduit. The container is used in conjunction with a mixing apparatus in order to mix the particulate material with a liquid, the mixing apparatus being in the form of an assembly which includes means providing the compressed air, and a pump for the liquid. In the figure, material enters through sealable port 31 which may form a vent when discharging, air enters through inlet 34 and fluidizes the material above porous floor 36 so that the material flows out of conduit 37. The apparatus is particularly useful to store fire retardant for mixing with water before spraying on to forest fires.
Patent GB-1518237-A (GB)
Title: Photographic enlarging apparatus
IPC: G03B27/62
Filed: 1976-11-12
Abstract: 1518237 Photographic enlarger DURST AG 12 Nov 1976 [13 Nov 1975] 47225/76 Heading G2A The projection head of an enlarger comprises a lens carrier and a lamp housing between which is situated a removable original carrier having relatively moveable upper and lower parts (assuming downward projection), the upper part being operatively connectible to the lamp housing such that the original carrier may be opened when the lamp housing is raised relative to the lens carrier. The lamp housing may be spring-biased to the lens carrier to enable the projection head to be used in a non-vertical position. As shown, a projection head comprises lamp housing 1b, original carrier 3 and lens carrier 1a, the upper part of carrier 3 having a U-shaped catch portion which engages with a projection 4 on housing 16. Housing 1b may be raised from the position of Fig. 1, (not shown) by pivoting about an axis 5. In a modification, it may be raised without pivoting. Other catches are specified.
Patent GB-1591136-A (GB)
Title: Cosmetic formulations for protecting the skin against harmfull light
IPC: A61K8/00
Filed: 1977-11-14
Abstract: Sunscreen compositions for the human skin contain 4-dialkylaminophthalic acid diesters of the formula I. The substituents in formula I have the meanings given in Patent Claim 1. The compounds of the formula I are non-toxic and very skin-compatible. They are not modified by UV radiation. <IMAGE>
Patent GB-1448329-A (GB)
Title: Remouldable halobutyl rubbers
Inventor: BUCKLER ERNEST JACK
IPC: C08K5/34
Filed: 1974-11-05
Abstract: 1448329 Modified halo-butyl rubbers POLYSAR Ltd 5 Nov 1974 [8 Nov 1973] 47857/74 Heading C3P Re-mouldable halo-butyl rubbers are prepared by reacting a halo-butyl rubber containing 0À5-15 wt. per cent bromine or chlorine, and derived from an isobutylene/isoprene copolymer containing 0À1-15 wt. per cent isoprene, with any of a number of types of tertiary amine compound defined by general formulµ, in an amount such that the number of tertiary amine groups present is equivalent to 1/5 to 5 times the amount of bromine or chlorine. Fillers may be present, e.g. silica, sodium silicoaluminate, magnesium silicate or calcium carbonate. In examples, the amine is dimethyldodecylamine, N,N,N<SP>1</SP>,N<SP>1</SP> - tetramethylhexamethylenediamine or a mixture thereof.
Patent GB-1355574-A (GB)
Title: Annular expanding ring structure for forming ring-shaped grooves or recesses in tube-shaped bodies
IPC: B29C33/48
Filed: 1971-10-14
Abstract: 1355574 Tube expanding LYNG INDUSTRIER A S LEKSVIKARMATUR 14 Oct 1971 [22 Oct 1970] 47858/71 Headings B3J and B3Q [Also in Division B5] The cross-section of a pipe is altered using an annular, radially expanding ring structure divided into a number of segments E (Fig. 1) arranged to undergo movement between a radially inner and a radially outer position, the segments E being divided into two sets 66, 79, each of the segments being supported for movement in mutually synchronized fashion along a straight path, lying, for each set in parallel with one of two identical conical surfaces 58, 60 having common axes and a common base circle, the base circle lying in the central plane of the ring structure. Adjacent segments E are maintained in mutual surface contact in all positions during movement from the radially inner to the radially outer position, with the contact area varying from a minimum in the inner position to a maximum in the outer position. The segments E are arranged for projection from, and withdrawal into, a cylindrical body 2, 4. A pistonrod 6 (Fig. 1) supports a pair of pistons 16, 18 and is attached via a pair of bosses 8, 10 to two cylindrical bushings 2, 4. The piston-rod 6 includes a ring-shaped, stepped shoulder 54 aligned with a cavity defined between the bushings 2, 4 and the pistons 16, 18. The shoulder 54 supports a ring-shaped guide flange 56 which, together with the bushings and pistons, defines guide seats for the segments E (see also Fig. 3), the latter comprising two sets of eight segments. Each segment E is formed as a frustrum in cross-section (see Fig. 4c, not reproduced) but is rectangular in plan (see Fig. 4a, not reproduced), and includes a T-shaped guide that slides in the associated guide seat 62 or 64 (Fig. 3). As shown, the segments form a curved recess in a pipe, but could be shaped to form a right-angled recess and flange. Operation.-With the segments E withdrawn into the bushings 2, 4 as shown in Fig. 3, the end of a plastics pipe is heated, inserted in a socket mould (see Fig. 5, not reproduced), and drawn over the bushings from the left in Fig. 1. A step 17 in bushing 2 expands the pipe end. Pressurized fluid is fed to a channel 21 in the pistonrod 6, flows through ports 24 and 26 into cavities 28, and 30, and forces the pistons 16, 18 toward one another. The segments E slide over the guide seats 62, 64 to project from the bushings 2, 4, and shape the pipe. After shaping, pressurized fluid is fed to a channel 23 in the piston-rod 6, flows through ports 32 and 34 into cavities 36 and 38, and forces the pstons 16, 18 apart so that the segments E withdraw into the bushings 2, 4, and the shaped pipe can be removed. The expanding ring structure can be used as a mandrel for casting tubular articles, and is applicable to plastics or metallic pipes.
Patent GB-1515073-A (GB)
Title: Method of producing an insulated electrical conductor
IPC: B29C48/05
Filed: 1976-11-17
Abstract: 1515073 Extruding cross-linked expanded conductor sheathing KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 17 Nov 1976 [24 Feb 1976] 47890/76 Heading B5A [Also in Division C3] A synthetic resin, containing cross-linking and expanding agent, is extruded as a sheath around a bare (copper) conductor, in an unexpanded and uncrosslinked state, and is cross-linked and then expanded at a location 6 downstream of the extruder 5, by at least a substantial proportion of heat from the conductor, provided by preheating the conductor by passage through a heater 4 prior to the extrusion of the resin therearound. The sheath is cooled by means 7. The preheating is effected to at least 200 C., and the expanded resin may have a smooth unexpanded skin arising from the surrounding cooler air and the insulation effect of the inner layer thereof, or may be expanded throughout by expanding at the location 6 within a heating means 9 providing additional heat from the exterior to a temperature of at least 200 C. The unexpanded sheath is of 30-50 microns, expanded to up to 200 microns to a density of 200 kg/m.<SP>3</SP> and a dielectric constant of 1À3 to 1À5. The examples relate to a conductor preheated to 220 to 240 C. and sheathed either with low density polyethylene, containing dicumyl peroxide cross-linking agent, and ADCF foaming agent, or sheathed with a mixture of equal weight parts of low and high density polyethylene, containing peroxide cross-linking agent and expanding agent.
Patent GB-1525504-A (GB)
Title: Formation and development of electrostatic images
IPC: G03G15/045
Filed: 1975-11-20
Abstract: 1525504 Electrophotographic process XEROX CORP 20 Nov 1975 47892/75 Heading B6C An electrostatic latent image, formed by exposing a charged photoconductive surface to a light image, is partially discharged, e.g. by means of a scorotron, before it is developed with a liquid developer, to reduce any tendency of spurious discharge due to air-breakdown at the developer station.
Patent GB-995399-A (GB)
Title: Improvements in or relating to the refining of semiconductor materials
IPC: H05B6/30
Filed: 1963-12-04
Abstract: 995,399. Zone-melting. DOW CORNING CORPORATION. Dec. 4, 1963 [Jan. 8, 1963], No. 47918/63. Heading B1S. A monocrystalline rod of silicon having a diameter of at least 1# inches is produced by floating zone-melting using a planar induction coil 52, Figs. 2 and 3, having an electrically conductive split ring 54 brazed or hard soldered at 56 to the inside of the turn of the coil having the smallest diameter. The coil may be an internally cooled hollow silver tube and the split ring may be of silver or platinum. A thick rod 32 may be produced from a thin rod, Fig. 4. The two ends of the rod being zone-melted may be rotated in opposite, directions. The zone-melting may be effected in an externally cooled evacuated chamber.
Patent GB-1516604-A (GB)
Title: Motor vehicle level control circuits
IPC: B60G17/019
Filed: 1976-11-19
Abstract: 1516604 Automatic control of vehicle levelling GENERAL MOTORS CORP 19 Nov 1976 [25 Nov 1975] 48329/76 Heading G3R [Also in Division B7] A circuit for use with a fore-and-aft levelling system of a motor vehicle to keep the sprung mass levelled within a trim band comprises means for producing first and second logic signal pairs (at circuit points 63, 64) when the sprung mass is respectively above and below the trim band, means for producing sprung mass "high" and "low" signals (at circuit outputs 81(1) and 80(1)), in response to the respective logic signal pairs and to control the levelling system, delay circuitry to inhibit production of a "high" or "low" signal for a pre-set duration after the initiral production of either logic signal pair so as to prevent response to normal road movements, and accumulators 87, 88 respectively responsive to the "high" and "low" signals and acting to inhibit the production of such a signal (by opening gate 69 or 65) if either persists for longer than a certain period (two minutes). The system is thus inhibited from prolonged and futile attempts to restore the trim. As described the logic pair signals are produced by photo-transistors 51, 53 in cooperation with LEDs 52, 54, a shutter being displaced between the elements in accordance with the trim. Oscillator and timer 70 impose a delay of eight seconds before a "high" or "low" signal can be produced. The levelling system uses combined shock absorber and air spring units (12, 13) Figs. 3, 4 (not shown), at the vehicle rear. The "high" and "low" signals respectively energize an air exhaust valve (31) and a compressor drive motor (32).
Patent GB-1163315-A (GB)
Title: Method of Stiffening Tri-Dimensional ends of Garments
IPC: D06M23/14
Filed: 1966-10-31
Abstract: 1,163,315. Stiffening garments. COTONIFICIO LEGLER S.p.A. 31 Oct., 1966 [3 Nov., 1965], No. 48749/66. Heading A3V [Also in Division D1] An end portion of a garment which assumes a three-dimensional form at least in wear, e.g. collar or cuff, is stiffened by incorporation therein of a stiffener which is of three-dimensional form before incorporation. To form the stiffener woven fabric e.g. cotton or cotton/polyester, is impregnated with a hardening composition, before or after cutting to a desired shape, and heated in a three dimensional mould to harden the impregnant. Example: Cotton fabric for shirt collar stiffener treated with a mixture consisting of: 200 gms of propylene urea 50 gms of polyvinyl alcohol 20 gms of starch ether 25 gms of MgCl 2 . 6H 2 O 2 gms of optical bleaching agent. is dried at 105‹C. on a tentering frame and then treated to prevent shrinkage. A collarshaped piece is cut out and hot moulded for six minutes at 160‹C. in a three-dimensional mould to the shape assumed by a collar in wear; the hardened stiffener is bonded or otherwise incorporated in the collar. Catalysts and crosslinking substances may be included in the hardening composition or added during the hardening process.
Patent GB-1446454-A (GB)
Title: Process for shaped articles of polyamino acid
IPC: D06M101/16
Filed: 1973-10-18
Abstract: 1446454 Poly(amino acid) films and fibres AJINOMOTO CO Inc 18 Oct 1973 [18 Oct 1972] 48492/73 Heading B5B [Also in Division C3] A process for modifying a shaped article of a poly(aminoacid) having an acidic aminoacid-#- ester side chain comprises containing the article with a polyamine having at least 2 primary NH 2  groups to amidate some of the side-chain ester groups and, thereafter converting some or all of the unreacted ester groups to acid or salt groups by saponification with an aqueous alkali. Specified shaped articles are films, tubes, flakes, capsules, fibres, hollow filaments and fabrics. The poly(aminoacid) may be a homopolymer of an acidic aminoacid- #-ester or a copolymer thereof with another such ester or a neutral α-aminoacid; the polyamine may be hydrazine or an aliphatic, alicyclic, heterocyclic or aromatic polyamine and may be used as a solution in a solvent which does not saponify or dissolve the polymer but desirably swells it so that reaction ocurs throughout the polymer cross-section. Numerous monoxides, polyamines and solvents are specified. The treatment is stated to convert the article to a substantially waterinsoluble amphoteric electrolyte with hydrophilic properties. In specific examples (1) a 32 Á film of poly-γ- methyl - D - glutamate is amidated with hydrazine; (2) a 20 Á film of an L-alanine/L- aspartic acid-#-benzyl ester 1 : 4 copolymer is aminated with hexamethylene diamine, 1,3- diamino - propanol or -cyclohexane, iminobispropylamine and 3,9-bis(aminoethyl) spiroli methadioxane; (3) an L-leucine/L-glntamic and - γ - methyl ester 1 : 3 copolymer is amidated with ethylene diamine to give a semipermeable membrane, and (4) filaments of poly- L - glutamic acid - γ - methyl - ester (wound on a polyethylene plate) are amidated with diethylene triamine. In all examples saponification is effected with aqueous methanolic NaOH (followed by aqueous methanolic HCl where the acid form is required).
Patent GB-1084978-A (GB)
Title: Improvements in or relating to walls or partitions for prefabricated houses
Inventor: STERVE BERTIL MARCUS
IPC: E04C2/38
Filed: 1964-11-30
Abstract: 1,084,978. Partitions. FOGELFORS BRUK A.B. Nov. 30, 1964. No, 48533/64. Heading E1W. A wall or partition for prefabricated houses comprises adjacent elements each having a wooden marginal frame with vertical sides each provided with a rib 2 defined between two rabbets, or between a rabbet and a channel, Fig. 5 (not shown), the ribs being mounted in opposite mutual positions on adjacent elements so that a channel is formed on one side of the ribs and another channel, or a duct (Fig. 5) is formed on the other side between adjacent elements, a cover strip 18 being mounted in a recess in at least one of the opposing wall surfaces to cover said channel or channets. One of the channels, or the duct (Fig. 5) may be filled by a wooden bar 15 glued and nailed in position. A channel may accommodate, for example a tube 14 accommodating electric wiring.
Patent GB-1241301-A (GB)
Title: Improvements in or relating to breathers for closed containers for liquid
Inventor: AVES STANLEY GEORGE
IPC: B65D90/34
Filed: 1967-10-25
Abstract: 1,241,301. Container breather. CASTROL Ltd. 18 Dec., 1968 [25 Oct., 1967], No. 48567/ 67. Heading B1L. A breather delivers dry air into a container when liquid is withdrawn therefrom, by allowing air to pass through a hole 15 and lift a thin washer 32 forming a one way valve: the air then passes the edge of a flange 27a of a locating spool, and flows through a replaceable desiccant, e.g. silica gel, in a chamber 33. After passing through holes 30 and a felt pad 31, it flows down through the centre of a hollow spool 24, a perforated disc 28 and into the container. The breather may be fitted to a container for 'brake fluid.
Patent GB-1424482-A (GB)
Title: Dynamic system firmware
IPC: G06F9/24
Filed: 1973-10-19
Abstract: 1424482 Microprogram arrangements BURROUGHS CORP 19 Oct 1973 [27 Aug 1973] 48804/73 Heading G4A The firmware (microprograms resident in a control memory) of a microprogrammed processor is divided into interfaced autonomous modules comprising functional groups corresponding to hardware functional groups such as a peripheral controller group, a processing manager group, a plan interpreter (microcode execution) group. The modules may be obtained from a library, as required for a particular data processing system, and are provided with interfaces to allow the firmware to be built up, and if required, added to or replaced by selection of pre-defined modules in accordance with the requirements and structure of the system hardware. The completed firmware structure may be tested and evaluated by a special program. The peripheral controller group controls peripheral devices via (hardware) device ports, processes interrupts from the devices, and interfaces with the device port modules and processing manager group. A definition program (or more than one) defines the system, e.g. it may be an emulation program, and determines which devices should be activated at any given time. The manager group senses device interrupts, switches control to the appropriate peripheral controller modulus to process the interrupts; determines which controllers can be run in a multiprogramming mode and which have to be queued because of the characteristics of the system, e.g. one controller module for a number of devices of the same type may only be used to control one device at a time. The manager group may also perform the overlay function of loading microprograms from a data memory into micro- and nano-program memories. The manager interfaces with the controller and definition modules to receive and process defined function calls.
Patent GB-1330345-A (GB)
Title: Refrigeration method and apparatus
IPC: F25B9/14
Filed: 1970-10-15
Abstract: 1330345 Refrigerating AIR PRODUCTS & CHEMICALS Inc 15 Oct 1970 [20 Oct 1969] 49160/70 Heading F4H In a device for producing cryogenic refrigeration, high pressure fluid, e.g. helium gas, is supplied through a line 26, valve 28, line 30, regenerator 32, line 34 and heat exchanger 36 to the lower, cold end of a chamber 12 in a housing 10 having a displacer 18 surrounded by a seal 20 to separate the cold end from the upper, warm end of the chamber. A surge volume chamber 14 is formed from the uppermost portion of the housing which is separated from the chamber 12 by the top 24 of the chamber 12 having an orifice 16 therein. A capillary tube 48 is connected between the chamber 14 and conduit 30 to control the pressure in the surge volume chamber to a pressure approximately intermediate the HP and LP in the hot end of of the chamber 12. In use, the HP fluid is passed to the cold end and raises the displacer until the pressures in the hot and cold ends equalize whereafter the surge volume chamber receives gas from the hot end, allowing the displacer to rise and the cold displaced volume to be filled with further HP gas. Closure of the valve 28 occurs when the displacer in the topmost position when an exhaust valve 42 is open and the pressure therefore decreases to expand and cool the gas which reverses flow to exhaust through the valve 42 and a heat exchanger 44 which removes excess heat generated in the gas by forcing through the orifice 16. Ambient air flow over the surge volume chamber is utilized as the means for absorbing sensible heat generated at the hot end of the housing. The process continues until the pressure below the displacer decreases to allow gas flow from the chamber 14 back to the chamber 12 forcing the displacer to the bottom 22 of the housing whereafter the cycle is recommenced. The regenerator may include fine wire screens or metal spheres. In a modification, the regenerator may be positioned within the displacer, Fig. 2, HP fluid being passed thereto through the side of the housing 10, or the displacer may be of stepped configuration within a correspondingly shaped housing as in Fig. 3, or in a further form, Fig. 4, two spaced displacers may be connected by a slack coupling means. In a further embodiment, Fig. 7 an electrically driven motor alternately admits HP gas to the cold end and vents the cooled gas. Supply of refrigeration fluid may be controlled by an automatic timing device.