baber/WOPTO huggingface dataset:
Patent GB-1370024-A (GB)
Title: Fluorinated compounds containing functional groups
IPC: C08G65/337
Filed: 1971-10-15
Abstract: 1370024 Ether derivatives of tetrafluoroethylene oligomers IMPERIAL CHEMICAL INDUSTRIES Ltd 31 Aug 1972 [15 Oct 1971] 48145/71 Heading C2C Ether derivatives of tetrafluoroethylene oligomers are prepared by reacting a tetrafluoroethylene oligomer of formula (C 2 F 4 ) n , where n is an integer greater than 1, with an organic hydroxy compound, in the presence of an alkali metal salt of an acid, the said salt being one in which an alkali metal has replaced a weakly acidic hydrogen of an acid having a pKa greater than 6. In the examples tetrafluoroethylene oligomers are reacted with phenol, p-cresol, methoxypolyethylene glycol and polyethylene glycol in the presence of Na, K or Li carbonate, Na bicarbonate, Na metasilicate or trisodium orthophosphate.
Patent GB-482973-A (GB)
Abstract: 482,973. Weighing-apparatus. AVERY, Ltd., W. & T., and SANDERS, L. Dec. 9, 1936, No. 33768. [Class 143] A weight-indicating mechanism for weighing- apparatus having an automatic indicating device, comprises means actuated by the weighing mechanism for actuating the weightindicating device, a resilient coupling between the weight-indicating device and its actuating means, and a braking means for holding the weight-indicating device in any set position even after the removal of the load. The indicating pointer 16 is secured to a disc 14 loosely mounted on the indicating spindle 6 and connected by a spiral spring 15 to a, disc 12 secured to the spindle. The spiral spring tends to maintain pins 13, 14a on the discs in contact. A further spiral spring 11 coupled two arms 5a, 10 secured respectively to a pinion 5 loose on the spindle, and to the spindle. When a load is placed on the apparatus, a rack (not shown) rotates the loose pinion 5, the arm 5a rotates the arm 10 and disc 12, and the disc 12 by means of the spring 15 and pins 13, 14a rotates the loose disc 14 and indicating pointer 16 By manual operation of a rod 22 a pair of brake shoes 18 are clamped on to the disc 14 to hold the pointer in indicating position when the load is removed. At the same time an operative connection from the link 22 changes an inscription to notify the observers that the pointer indicates the last load weighed. If a greater or lighter load is next placed on the apparatus one or other of the springs 15, 11 take up the loose motion when the brake shoes are released.
Patent GB-1299219-A (GB)
Title: Improved collapsible stillage
Inventor: SZAWELSKI KONSTANTY
IPC: B65D19/12
Filed: 1970-10-14
Abstract: 1299219 Collapsible stillages K SZAWELSKI 3 Nov 1970 [14 Oct 1970] 48759/70 Heading B8H A collapsible stillage comprises a base 11 mounted on leg portions 12 having upwardly extending projections 14 which are hingedly connected to article support pillars 15 which are connected by displaceable cross-members 17. When it is desired to collapse the stillage, pins 18 which hold the members 17 in position are removed and the members 17 are lowered to a position beneath the hinge connection between the pillars 15 and base 11, Fig. 2 (not shown). The hinge between the members 14, 15 consists of a lug (21) secured to the member 15 which is pivotally connected to a sliding hinge member (23) located in the projection 14, Fig. 3 (not shown), such that the pillars 15 must be raised to enable pivoting. Means 19 are provided to enable stacking of collapsed frames.
Patent GB-1072685-A (GB)
Title: Light-sensitive coating for pre-sensitised plates, intended for offset printing and for engraved wiring of printed circuits
IPC: C07D271/12
Filed: 1963-12-10
Abstract: Solutions for use in preparing light-sensitive coatings (see Division G2) are obtained by reacting in the cold state in an organic solvent at least 2 isomers of the anhydride of diazonaphthol sulphonic acid, a diazonium salt of p-diazodiphenylamine, and a phenol-aldehyde resin of molecular weight 200 to 1300.  Coatings from the solution may be partially further reacted by heating at 80 DEG  to 95 DEG  C. for 2 to 20 minutes. The polymer coatings are alkaliinsoluble but are rendered alkali-soluble on exposure to light, e.g. ultra-violet.
Patent GB-1032977-A (GB)
Title: Gaseous reservoir
IPC: H01J17/26
Filed: 1963-12-12
Abstract: 1,032,977. Electric heating resistances. EDGERTON, GERMESHAUSEN & GRIER Inc. Dec. 12, 1963 [Feb. 25, 1963], No. 49153/63. Heading H5H. [Also in Division H1] A gas reservoir in a hydrogen-thyratron (see Division H1) is heated by a spiral or meandering strip of molybdenum covered with an insulating film of alumina, sandwiched between and substantially co-extensive with two circular, square or rectangular plates of titanium containing absorbed gas.
Patent GB-1325166-A (GB)
Title: Air rectification process for the production of gaseous or liquid nitrogen
IPC: F25J3/04
Filed: 1970-10-19
Abstract: 1325166 Air separation process KOBE STEEL Ltd 19 Oct 1970 [20 Oct 1969] 49460/70 Heading F4P A compressed air stream 3 is cooled in reversible paths of heat exchangers 4, 5 and fed to the base of a single rectification column 8 from which gaseous air is withdrawn at 10 liquefied at 9 and returned to the column at 11 whilst oxygen-rich liquid is withdrawn at 12 and expanded at a valve 14 into the shell space 15 of a condenser-evaporator 16 thereby providing nitrogen reflux at 18, the so-vaporized crude oxygenrich gas is withdrawn at 9 from space 15, a portion thereof passed through liquefier 9, warmed in a non-reversing path of exchanger 5 work-expanded at 26 and added to the remainder of the crude oxygen in a line 29 and after passing through liquefier 9 is used to cool and derime that path of each exchanger 4, 5 previously traversed by feed air; product liquid nitrogen being withdrawn through a line 36, product gaseous nitrogen through a line 33, liquefier 9, a non-reversing path of each exchanger 4, 5 and a line 35 and carbon-dioxide and water impregnated crude oxygen through a line 31. The air feed line includes a CO 2  absorber 39, and the oxygen-rich liquid nitrogen line 12 includes a CO 2  and C 2 H 2  filter 13.
Patent GB-1076839-A (GB)
Title: A rotor for an asynchronous motor
IPC: H02K1/32
Filed: 1964-12-07
Abstract: 1,076,839. Rotors for asynchronous motors. SIEMENS-SCHUCKERTWERKE A.G. Dec. 7, 1964 [Dec. 7, 1963; Nov. 18, 1963], No. 49794/64. Heading H2A. In a non-laminated, e.g. cast iron, rotor 1 for an asynchronous motor are cooling channels 4 extending along the rotor and arranged in a ring which concentrically surrounds the rotational axis, and extending from the rotor periphery to the channels and forming constricted openings into them are slots 3 which extend along the rotor parallel to respective channels. Between the channels 4 there may be further slots 8 which may contain non- magnetic electrical conductors, and within electrically conductive end rings 6 are further cooling channels 5. The rotor periphery may have a non-magnetic coating of good electrical conductivity and annular or helical grooves.
Patent GB-1133347-A (GB)
Title: Improvements in or relating to hologram systems
IPC: G03H1/16
Filed: 1965-11-24
Abstract: 1,133,347. Making holograms. AMERICAN OPTICAL CO. Nov.24, 1965 [Dec.14, 1964], No.49874/65. Heading G2C. An apparatus for producing a hologram of an object 56 by the two beam process in which the reference beam 52 is emitted from a point source 54 closely adjacent the object, but so positioned that the reference beam is not diffracted by the object, the spherical wave front of the reference beam being substantially parallel to the spherical wave front of the object beam. In another embodiment, Fig. 9 (not shown), the point source is spaced from the object so that the reference beam impinges on the film at an angle to the object beam.
Patent GB-1533865-A (GB)
Title: Paper machine headbox system
IPC: D21F1/02
Filed: 1975-12-05
Abstract: 1533865 Valves BELOIT CORP 5 Dec 1975 [13 Dec 1974] 50056/75 Heading F2V [Also in Division D2] A paper-machine headbox system for controlling pressure fluctuations comprises a distribution chamber 15 for receiving stock under pressure and supplying it to a headbox and a pressure chamber 18 separated from the distribution chamber by a yieldable wall, means being provided for controlling air pressure in the pressure chamber. The yieldable wall may be a flexible diaphragm 21 which may also be used to control the release of air from the pressure chamber through ports 36, 34 and outlet 37 to the atmosphere, so that an increase of pressure in the distribution chamber restricts the air flow from the pressure chamber. Damping of the air flow is provided by a wall 29 within the pressure chamber and comprising material such as felt 32 supported by a perforate plate 30.
Patent GB-1219069-A (GB)
Title: Process for curing polyepoxides and resulting products
Inventor: JOYCE JAMES DONALD
IPC: C08G59/56
Filed: 1969-10-13
Abstract: 1,219,069. Curing epoxy resins. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 13 Oct., 1969 [14 Oct., 1968], No. 50078/69. Heading C3B. Epoxy resins are cured with a curing agent containing 25-40% by wt. of a polyamine H 2 N(CH 2 CH 2 NH) n NH 2  in which n=1-8 (e.g. diethylenetriamine), 20-30% by wt. of N- (aminoethyl) piperazine, 10-20% by wt. of dicyandiamide and 25-35% by wt. of an imidazole compound. The imidazole compound may be imidazole itself but other alkyl substituted imidazoles and benzimidazoles may also be used. Examples relate to the curing of diglycidyl ethers of bisphenol A.
Patent GB-1010121-A (GB)
Title: Dispensing apparatus
Inventor: GRADY JAMES MILBOURNE
IPC: B65D47/26
Filed: 1963-12-20
Abstract: 1,010,121. Container closures. MORTON SALT CO. Dec. 20, 1963, No. 50488/63. Heading B8T. A dispensing device comprises an upper member 13 rotatably mounted on a stationary lower member 12, an aperture 25 in the upper member continuously registering with a larger aperture M in the lower member, and a spout member 26a hingedly connected to the aperture 25 and having a portion which closes the aperture and quadrantal side portions which extend through the apertures and are engaged by a protuberance 17b on the opening 17 to prevent rotation of the upper member when the spout member is in the closed position and further openings 18 and 17 are out of register. A tab portion is used to open the spout member, and a segment 26f functions as a stop. The spout member is held tightly closed by protuberances 26g engaging under the member 12. The rotational adjustment is limited by depending lugs 23a-23d sliding in slots 21a- 21d in member 12. The lower member is preferably moulded of a stiff plastics material and the upper member of a pliable plastics material.
Patent GB-1525740-A (GB)
Title: Rotary pump or compressor
IPC: F04C27/00
Filed: 1975-12-12
Abstract: 1525740 Rotary positive displacement fluid machines NIPPON PISTON RING KK and TOYOTA JIDOSHA KOGYO KK 12 Dec 1975 [13 Dec 1974(3)] 51117/75 Heading F1F In a rotary vacuum pump or compressor having a rotor 40 eccentrically located within a cylindrical chamber defining by a housing 10, flexible sealing plates 31, 32 are clamped between the housing 10 and end-plates 21, 22, the latter having recesses 21a, 22a corresponding in shape to the cylindrical chamber, and subjected to pressure forces exceeding those generated within the chamber to press the sealing plates against the rotor. As shown in Fig. 4, the recesses are connected to the outlet passage 12 via passages 10a, 21b, 22b. In the case of a vacuum pump the recesses may communicate with the atmosphere via passages in end-plates 21, 22. The recesses may be pressurized to a predetermined pressure by compressed air introduced into the recesses via passages closed by checkvalves, Fig. 6 (not shown). The recesses may be lined by flexible bags which are either filled via check-valves Fig. 7 (not shown) or sealed prior to introduction Fig. 8 (not shown). Alternatively the sealing plates may be urged against the rotor by annular wavy springs Fig. 9 (not shown). The rotor, as shown, has a plurality of radial sliding vanes.
Patent GB-1334726-A (GB)
Title: Multi-stage flash evaporator
IPC: C02F1/06
Filed: 1971-11-03
Abstract: 1334726 Evaporators, flash type; desalination of water SOC ITALIANA RESINE S I R SpA 3 Nov 1971 [12 Nov 1970] 51187/71 Addition to 1289642 Heading BIB  An evaporator, suitable for the desalination of sea water, is housed in an elongated casing 1 divided by two vertical longitudinal baffles 3, 4 into a central evaporation zone and two lateral condensation chambers 24, 25, the evaporation zone being divided into a series of flash chambers by transverse vertical partitions 12, 13 each of which has two passages 12a, 12b, 13b, 13b, for the flow of liquid from one chamber to the next, and the transverse crosssection of the casing having the approximate form of two equal juxtaposed truncated ellipses. The vapours evolved from the liquid in the flash chambers flow to the condensation chambers 24, 25 through droplet-separating filters 23 in the top 5 joining the upper ends of partitions 12, 13. The underside of the casing deviates fromelliptical curvature in the central zone. Dams 21 are provided midway between the transverse baffles. Sea water to be treated is supplied to the first flash chamber via the tubes of heat exchangers 26, 27 and an external heater.
Patent GB-1160283-A (GB)
Title: Method and Apparatus for Manufacturing Ring-like Reinforcing Bars
Inventor: LARKFELDT OWE CARL GUNNAR
IPC: B21F27/12
Filed: 1966-11-15
Abstract: 1,160,283. Making rings; stretching rings. SKANSKA CEMENTGJUTERIET, A.B. 15 Nov., 1966, No. 51201/66. Headings B3A and B3E. A ringlike reinforcing bar for a reinforced concrete member is formed by welding the ends of a steel bar together to form an annular ring blank, which is stretched by a plurality of circumferentially arranged thrust members 5 so shaped that the blank is maintained in a plane position during stretching. The thrust members 5 are held by an elastic ring 13 in circumferentially arranged holders 6, the inner faces 6c of which are engaged by thrust plates 8 having depending ribs 9 which are guided between ribs 10 on a supporting ring 2. Each holder 6 is guided along the supporting ring 2 by a stud 11 engaging in a groove in a guide member 12. The thrust plates 8 are pivotally connected by linkage 18, (22), (Fig. 2, not shown), to spiders 17, (21), spider 17 being connected to a piston-rod of a cylinder (16), to which the other spider (21) is connected. When the pressure above the piston is increased, the spider 17 is forced towards the spider (21) causing the thrust plates 8 and hence the thrust members 5 to be moved radially outwards thereby expanding the ring. The thrust members 5 may alternatively be actuated by wedge members or by a rubber ring connected to a fluid pressure source.
Patent GB-1445984-A (GB)
Title: Plastic films
IPC: B29C48/90
Filed: 1972-11-07
Abstract: 1445984 Profiling films JAMES MACKIE & SONS Ltd 1 Nov 1973 [7 Nov 1972] 51233/72 Heading B5B Film 2 from an extruder 1 passes round a chill roller 3 forming one of the co-operating members of the profiling apparatus of which the other co-operating member is a profiling comb 5. The comb engages the film at the point where it comes into engagement with the surface of the roller 3 and an accurate nip is maintained by the bar 13 supporting the comb being mounted in a frame comprising end plates 14A and 14B interconnected by rods 16 and 17 to form a rigid assembly and the end plates 14A and 14B carrying runners 20 in the form of light wheels turning on frictionless bearings and engaging the surface of the chill roller 3. The supporting bar 13 is formed at each end with a shank 25 fitted with a tension spring 30 which biases the end plates and connecting rods against the surface of roller 3. The arrangement may be adjusted by the use of the elongated slot 36 in arm 37 which may be pivoted to allow the frame to be swung from its operating position. The pins 11 of the profiling comb are braced close to their tips by means of a bar 50 extending parallel with the length of the comb and having accurately pitched grooves (54, Fig. 3) corresponding to the correct spacing 11. The bracing bar 50 is stressed so as to maintain the points of the pins in a straight line by a series of screws two of which are shown as 51 and 52, the screw 51 and alternate screws passing through threaded holes in bar 13 and engaging the rear of bar 50 and the screw 52 and the remainder passing through plain holes in 13 and into tapped holes in 50. An alternative arrangement (Fig. 4) provides localized adjustment of body 12 in which shorter pins are used and bar 50 is eliminated. In this arrangement, similar uniformly spaced screws (e.g. 55) pass through plain holes in bar 13 and into tapped holes in body 12. The heads of the screws (55) are trapped between the body of bar 13 and a plate (56) which extends along the length of bar 13 and is fixed thereto at intervals by bolts (57) screws (55) are socket headed and the plate (56) is formed with a series of holes (60) in register with the sockets in the screws for the insertion of a key. Since the head of each screw is incapable of axial movement, movement in one direction or the other exists either a thrust or pull on the body 12.
Patent GB-1377114-A (GB)
Title: Ferroelectric ceramic compositions
IPC: C04B35/48
Filed: 1972-11-09
Abstract: 1377114 Ferroelectric composition TOKO Inc 9 Nov 1972 [10 Nov 1971] 51701/72 Heading C1J A ferroelectric ceramic comprises solid solutions of (A) Pb(Fe 1/2 Nb 1/2 )O 3 ; (B) Pb(Zn 1/3 - Nb 2/3 )O 3 ; (C) PbZrO 3  and (D) PbTiO 3 . The proportions of A, B, C and D lie within the volume bounded by an envelope enclosing and bounding the areas defined by compositions 1-39 in Table 1. The ceramist may be prepared by calcining and pulverizing a composition containing A, B, C, D in the required proportions, moulding with the aid of a binder and firing.
Patent GB-1129996-A (GB)
Title: Improvements in or relating to scaffold couplings
Inventor: PACKHAM GORDON WILLIAM
IPC: E04G7/14
Filed: 1964-12-19
Abstract: 1,129,996. Clamps. DAVID ROBERTS & CO. (ENGS.) Ltd. 20 Dec., 1965 [19 Dec., 1964], No. 51726/64. Addition to 1,030,843. Heading E2B. The scaffold coupling of the parent specification is modified in that the base of the body 4 is substantially straight and flat through both the medial portion 7 and the lateral projections 8, 9 and that at least the forked portion in the projection 8 on the body 4 is formed by an upstanding outwardly directed hook-like extensions 10 on the longitudinal edges of that projection. As shown, the extensions 10 are so formed as to give the base portion locally a substantially C-shaped section, the outer portions of the extensions being provided with aligned slots 12 for the T-head 23 of the bolt 21. Two such clamps are rigidly secured together at an angle one to the other.
Patent GB-1493574-A (GB)
Title: Mounting assembly
IPC: A01D34/535
Filed: 1973-11-08
Abstract: 1493574 Springs NATIONAL RESEARCH DEVELOPMENT CORP 7 Nov 1974 [8 Nov 1973] 51931/73 Heading F2S [Also in Division A1] A mounting assembly comprises an operating arm 11 pivoted to an outwardly extending portion of a carrier, e.g. a lug of a rotor 12 by for example a bolt 13, a resilient element 15 for locating the arm in a required working position which is compressed when the arm is pivoted out of its working position, and a housing 14 for the resilient element pivoted to the carrier and the arm, for example on the bolt 13, for pivoting during the compression of the resilient material. In various embodiments described the arm may be a haymaking tine, a mower flail or a soil working implement. The resilient element 15 may have holes 82<SP>1</SP> in it and may be of natural or synthetic rubber, or plastics material. A wear plate 19 may be disposed between the element 15 and portions of the carrier and the arm.
Patent GB-1395593-A (GB)
Title: 2-pyridylmethylacylates processes for their preparation and  pharmaceutical compositions containing them
IPC: C07D213/30
Filed: 1972-11-10
Abstract: 1395593 Antispasmodic medicines PIERRE FABRE SA 10 Nov 1972 [10 Nov 1971] 52054/72 Heading A5B [Also in Division C2] Pharmaceutical compositions in conventional forms for oral rectal or parenteral administration having anti-spasmodic activity comprise a compound of formula I in which R is a hydrogen atom, a halogen atom, a C 1-5  alkyl, phenyl, benzyl, cyclohexyl, alkenyl or alkynyl group, R' is a hydrogen atom, a halogen atom or a hydroxyl, alkoxy, alkyl, acyloxy, alkenyloxy, alkynyloxy, cyclopropylmethoxy, dialkylaminoalkoxy or aralkoxy group, or an Ar is a phenyl, thienyl, benzyl or alkyl group, R" is a C 1-5  alkyl group or a hydrogen atom and X is a halogen atom, a methylsulphate group or a picryl group C 6 H 2 N 3 O 7  and a carrier or diluent and optionally noramidopyrine methane sulphonate and/or codeine phosphate.
Patent GB-1098299-A (GB)
Title: Improvements in the control of nuclear reactors
Inventor: DUNCOMBE EDWARD
IPC: G21C7/16
Filed: 1964-12-23
Abstract: 1,098,299. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 30, 1965 [Dec. 23, 1964], No. 52257/64. Heading G6C. A reactor control system comprises at least one U-tube with its limbs vertical and at least part of which is in the reactor core, a flexible assembly movable through the U-tube and comprising a sequence of neutron absorber units followed by a sequence of units of low neutron capture cross-section, and means whereby the flexible assembly can be moved or retained in position by a pressure differential regulation across the U-tube and in a sense so that the greater the differential the smaller the number of neutron absorber units situated in the reactor core. As shown in Fig. 4, a series of interconnected U-tubes 32 containing a flexible assembly 33 of balls pass through a reactor core 31. The assembly 33 consists of alternating sequences of low absorber balls 34 and absorber balls 35. When it is desired to start up the reactor, a gas pressurizing means 36 on the outermost stem is used to drive the assembly 33 from the shut down position in which the absorber balls 35 are within the core 31. Eventually the assembly 33 will occupy the position shown in Fig. 4, where the core 31 is occupied only by low absorber balls 34. In the event of loss of pressure the assembly 33 will move under the action of gravity so that the absorber balls 35 tend to fall into the core, entering simultaneously in adjacent stems from opposite sides of the core giving a uniform shut down. An intermediate reactivity setting can be obtained by adjusting the pressure differential so that the core is occupied only by some of the absorber balls 35. The gas pressurizing means 36 can either be the coolant circulating pump or a separate pump external to the coolant system of the reactor. The assembly 33 may alternatively be controlled by a liquid flow (as might be used in a water cooled and/or moderated reactor). In other modifications, the balls 34, 35 are linked to provide a string of balls after the fashion of a necklace and auxiliary means are provided (e.g. a compression spring) to force the balls through the U-tubes when the pressure differential falls-or fails.