baber/WOPTO huggingface dataset:
Patent GB-389428-A (GB)
Title: Improvements in photographic roll film cameras having auxiliary focussing lenses
IPC: G03B19/04
Filed: 1932-11-24
Abstract: 389,428. Photographic cameras. FRANKE, P., 32c, Wolfenbuttlerstrasse, and HEIDECKE, R., 7, Seesenerstrasse, both in Brunswick, Germany. Nov. 24, 1932, No. 33277. Convention date, Nov. 28, 1931. [Class 98 (i).] A roll-film camera, of the kind having in its casing an exposure chamber above which is situated a focusing chamber, is provided with a focal plane shutter whereof one roll or set of rolls is disposed in a cavity between the chambers and the other roll or set of rolls is disposed in a cavity between the exposure chamber and the bottom of the casing. As shown, the casing 1 of the camera, comprises two chambers, an exposure chamber 2 and a focusing chamber 3, carrying two lenses, the photographic lens 4 and the finding or focusing lens 5. The reflex mirror 6 in the focusing chamber 3 projects an image on to the ground glass screen 7 at the top of the casing. Between the chambers is a space A containing a film reel 8 off which the film is wound on to a reel 9 located in a space B between the bottom 15 of the exposure chamber 2 and the bottom 11 of the casing. The bottom of chamber 3 is at the same angle as the mirror 6, and the chamber 2 is tapered approximately in accordance with the divergence of the beam from the lens 4. The two top rollers 12 of the focalplane roller-blind shutter are located in the space A between the chambers, and the bottom rollers 13 are located in the space B. The camera may have a front shutter 14. The casing is hinged at 10.
Patent GB-692547-A (GB)
Title: Process of preparing polycyclic compounds and insecticidal compositions containing the same
IPC: C07D303/10
Filed: 1948-12-24
Abstract: The structure of the polycyclic halogen compounds of Specification 692,546 is modified by introducing an epatomic component (oxygen, sulphur or arylimino) into the terminal ring derived from the dienophilic component.  The introduction may be effected by direct epoxidation, reaction of a dihalide or halohydrin with a suitable reagent, or by reaction with an aryl azide and degradation of the resulting triazole derivative.  In the examples: (1) hexachlorotetracyclododecadiene is converted into its 6 : 7-epoxide by treatment with perbenzoic or peracetic acid (details are given of the preparation of 70 per cent peracetic acid); (2) heptachlorotetracyclododecadiene gives an epoxide with hydrogen peroxide and acetic anhydride; (3) bromo-hexachlorotetracyclododecadiene is similarly converted into its epoxide; (4) the product of (3) with alcoholic potash yields the epoxide of ethoxy-hexachlorotetracyclododecadiene; (5) 6 : 7-dibromo-hexachlorotetracyclododecane (obtained by brominating the starting material of (1)) with sodium sulphide gives the sulphur analogue of (1).  The reaction of hexachlorotetracyclododecadiene with phenyl azide gives a triazole which can be degraded to 6 : 7-phenylimino - hexachlorotetracyclododecene.  The halogen atoms in the products may be bromine.ALSO:Insecticidal compositions contain as active ingredient one or more compounds of the structure given in Specification 692,546 with an epatomic oxygen or sulphur atom or arylimino group attached to the terminal ring that does not contain the six halogen atoms.  The compounds may be applied in the same way as those of Specification 692,546.  Specific compounds are 6 : 7-epoxy-hexachlorotetracyclododecene and its 6-chloro, 6-bromo and 6-ethoxy derivatives, and 6 : 7 -episulphido - hexachlorotetracyclododecene.  Tables are given of the activities of these compared with known insecticides.
Patent GB-353803-A (GB)
Title: Improvements in machines for spinning artificial silk
IPC: D01D7/00
Filed: 1930-11-05
Abstract: In machines for spinning artificial silk wherein the bobbins upon which the material is wound are arranged in superposed rows, separate spinning troughs are provided for each row and are arranged so that the distance from each nozzle to the level of the liquid and from each nozzle to the axis of the winding bobbins is the same.  As shown, the invention is applied to machines wherein the winding bobbins are mounted in pairs on rotatable carriers and the troughs e, f for the rows of carriers <PICT:0353803/IV/1> are vertically staggered so that the depth of immersion y of the nozzles and the distance x between the nozzles and the operative bobbin is in each case the same.
Patent GB-501575-A (GB)
Title: Improvements in or relating to a motor vehicle of the endless-tread type
IPC: H01M2/12
Filed: 1937-07-30
Abstract: 501,575. Endless - - track vehicles. JACKSON, L. MELLERSH-. (Marmon-Herrington Co., Inc.) July 30, 1937, No. 33344/38. Divided out of 499,801. [Class 79, (i)] In a load-carrying roller for endless-track vehicles, comprising a pair of axially spaced wheels 22 whose hubs 21 are journalled within a bearing sleeve 29, a supporting arm 35 lying between the wheels is secured to one side of a flange 30 on the sleeve, which flange is situated to one side of the middle of the sleeve so that the arm lies substantial centrally between the wheels. The wheels are held together by a bolt 25 with the inner ends of their hubs 21 abutting one another. Grease packings 55 are provided between the wheels and the ends of the sleeves, and enable the wheel bearings 27 and interior of the sleeve to be packed with grease. The sup porting arm 35 may be the bell-crank plate described in Specification 499,801., the sleeve 29 being secured to the heel of the plate the two arms of which are, disposed horizontally and vertically.
Patent GB-520801-A (GB)
Title: Multiple commutator dynamo-electric machines
IPC: H02K13/00
Filed: 1938-11-16
Abstract: 520,801. Dynamo-electric machines. MARELLI & CIE SOC ANON., E. Nov. 16, 1938, No. 33345. Convention date, June 2. [Class 35] A machine has at least two commutators mounted one about the other, with or without slip-rings, and is provided with a multiple brush carrier having a number of brush holders extending from both sides of a single insulating ring mounted in a rotatable frame. Fig. 3 shows the arrangement and terminal board for a machine having two separate continuouscurrent commutator windings in which the high voltage commutator b and slip-rings d surround the low voltage commutator a, the slip-rings being tapped from the low voltage winding. The brush-holders extend from both sides of rocking apparatus disposed in the space f. Additional voltages, equal to half that on the commutator a, can be obtained from the terminals V' and the central tapping point V<SP>4</SP> of a choke connected across the slip-ring terminals V<SP>3</SP>.
Patent GB-1254046-A (GB)
Title: Totalizing systems
IPC: G07F9/08
Filed: 1969-07-02
Abstract: 1,254,046. Coin totalizing. BURROUGHS CORP. 2 July, 1969 [18 July, 1968], No. 33366/69. Headings G4A and G4D. A coin totalizing system includes two binary counters driven by pulses produced in response to money entered into the system, the counters controlling a plurality of decimal numerical display devices via a binary-coded decimal decoder. As shown, binary counters 100, 110, 120, 130, 40, 50, 60 count up to 5, 2, 5, 2, 10, 10, 10 respectively. Pulse generators 160 each produce a pulse in response to each 1, 5, 10, 50 cent coin inserted respectively, and pulse generator 170 produces 5 pulses in response to each 25 cent coin inserted. Thus with the connections shown, counters 100, 110, 120, 130 count cents and counters 40, 50, 60 count dollars. Multi-cathode display tubes 460, 450, 440, 400, 380 are controlled from the counters via decoders 360, 390, 410, 420, 430.
Patent GB-969110-A (GB)
Title: Improvements in the manufacture of polyamide yarns
IPC: D01F8/12
Filed: 1962-08-30
Abstract: Crimped, elastic, or voluminous stable yarns are made by melt-spinning yarns containing composite filaments of polyamides of uniform composition, in which the double refractions of their components in the unstretched state differ by at least 0.002, stretching them at a temperature of at least 60 DEG C., and subsequently relaxing the tension on the yarns.  Polyamides of uniform composition are defined as being of uniform chemical composition but differing in their double refraction in the unstretched composite filament.  The polyamides of uniform composition may differ in their reduced viscosities by at least 0.06. Reduced viscosity is defined as ln c  rel/C where c  rel. is the relative viscosity of a solution of concentration C, said concentration being 0.2 gms. of polyamide per 100 ccs. of solution, measured at 20 DEG C., in 94% by weight sulphuric acid.  The necessary double refraction difference may be produced not only by a difference in the solution viscosities of the polyamides, as defined above, but by a difference in melt viscosities of the components at the moment the filaments are formed, e.g. by differential temperature adjustments in the area of the spinneret, or by the use of different melting conditions on two p  polyamides of uniform compositions and of the same viscosity, i.e. identical polyamides.  Yarns consisting wholly of composite filaments so made may be heat set while substantially free from tension after having undergone spontaneous crimping.  Such yarns are characterized by their high elasticity, expressed by a take-up value of at least 40 and a half-value decrimping force of at least 1.0 mg. per denier.  For definitions of these terms, see Specification.  Such composite filaments, on being relaxed, develop a three-dimensional crimp and sometimes double spiralling. Yarns containing both composite and unitary filaments consisting of one of the two components of the composite filaments are relaxed and then stabilized by twisting, e.g. to 50-200 or more, turns per metre, and/or heat-setting under tension.  The more composite filaments the yarn contains the more voluminous it is, but the take-up value is rapidly increased, i.e. the final product tends to be crimped, which is undesirable in a voluminous yarn since it can only be stabilized by sacrificing its voluminosity. Hence yarns containing both composite and unitary filaments are preferred for the production of materials which are not required to have much elasticity but a large yarn volume, especially yarns containing 30-70% composite filaments.  Either or both components may contain matting agents, pigments, stabilizers or plasticizers.  The ratio of unitary to composite filaments can be varied.  Specified materials include all fibre-forming polyamides having melting points over 60 DEG C., e.g. polycaprolactam (nylon 6), polyhexamethylene adipamide (nylon 66), polyhexamethylene sebacamide (nylon 610) and polyaminoundecanoic acid (nylon 11). Specification 930,629 is referred to.
Patent GB-172515-A (GB)
Title: Improvements in guards for the duck bill motion of looms
IPC: D03D49/68
Filed: 1920-11-27
Abstract: 172,515. Statter, C., Statter, C., and Statter, H. Nov. 27, 1920. Guards.-A sheet-metal guard A, for the duckbili motion of loose-reed looms, is secured by tongues a<2> to the heater B and formed with top and bottom flanges a, a<1>, of a greater depth than the heater. The guard is cut out to suit the particular shape of bracket C, and has a tongue a<5>adapted. to be bent up to engage the bracket, thereby preventing lateral displacement of the guard. In a modification, the tongues a<2> are constituted by the extremities of a metal strip passed through slots in the sheet A. If struck by the duck-bill lever, the guard will be knocked off without suffering or causing damage.
Patent GB-323601-A (GB)
Title: Improvements in the combustion of liquid fuel
IPC: F23C99/00
Filed: 1928-11-16
Abstract: 323,601. Selma, S. Nov. 16, 1928. Vaporizing-apparatus.-A liquid fuel combustion apparatus comprises a vaporizer chamber 9, consisting for example of a copper pipe, partially filled with broken or crumbled firebrick or other refractory material into which the fuel supply nozzle 8 projects. The refractory material is held in position by a foraminous plate 12, the remainder of the chamber forming a space for the collection and purification of the vapour which is led through a pipe 13 to a valve-controlled burner nozzle 14 for heating the vaporizer chamber and, if desired, to other burners. In order to initiate combustion, fuel may be passed to the chamber 9 through a spiral tube 18 which is heated by a subsidiary burner or by an electric current.
Patent GB-484325-A (GB)
Title: Improvements in instruments of the running wheel type for measuring the lengths of lines
IPC: G01B3/12
Filed: 1936-12-09
Abstract: 484,325. Measuring-wheels for maps &c. CHRISTOFIDES, C. Dec. 9, 1936, No. 33750. [Class 106 (ii)] The device is in the form of a pair of compasses having one leg 12 pointed and the other leg 11 shorter and provided with a socket 15 in which is removably clamped an extension 17 carrying pivotally mounted about a pin 19 a thin calibrated disc 20. The lower point on the disc is level with the point 14 on the other leg, and the disc is tangential to the circle traversed by it. The extension 17 and disc may be removed and a pencil substituted therefor. The instrument may be used for measuring lines straight or curved.
Patent GB-794657-A (GB)
Title: Improvements in and relating to control devices for heat engines
Inventor: ANTONISSEN PETER HONORE LOUIS
IPC: G05D13/00
Filed: 1953-12-07
Abstract: 794,657. Gas turbine plant. ASSOCIATED BRITISH OIL ENGINES, Ltd. Feb. 25, 1955 [Dec. 7, 1953], No. 33927/53. Class 110 (3). [Also in Group XXIX] Apparatus sensitive to the temperature and pressure of the air supply to a heat engine comprises a completely sealed chamber including a yieldable member coupled to a servomechanism for amplifying the pressure changes within the chamber and transmitting them to any desired point of the engine control mechanism, the servo-mechanism being arranged to provide a force balancing that produced by the pressure within the chamber so that the volume of the chamber remains substantially constant and the elasticity of the yieldable member may be ignored. The embodiment shown in Fig. 1 is more particularly applicable to pressure-charged reciprocating engines and gas turbines and comprises a chamber 51 enclosing a predetermined quantity of gas and bounded by a diaphragm 50 which is coupled to a piston assembly 54. Air from the inlet manifold of the engine enters a chamber 49 through a pipe 48 and escapes through a restriction 52 so that a continuous flow of air is set up to enable the gas in the chamber 51 to respond to changes of temperature as well as pressure of the air. An increase of manifold air pressure or a decrease of temperature causes leftward movement of the diaphragm 50 with a consequent increase of oil pressure in a chamber 58 due to the relative opening of an inlet port 55 and closing of an exhaust port 56. This increased pressure acts on the piston assembly to oppose the leftward movement of the diaphragm 50. It also transmitted through a passage 60 to a cylinder 59 containing a spring-loaded piston 61 which acts on a fuel control element 71 through a lever 69. A centrifugal governor also acts on the member 71 through the lever 69. The piston 61 may alternatively be connected to an exciter control in the case of a Diesel-electric locomotive. Fig. 2 illustrates a modification in which manifold air is circulated through a bellows 17 and then passes to a chamber 25 after bubbling through water 26 so that the temperature in the chamber 25, which is effective on a bellows 18 having communication 20 with the bellows 17, is a function of the humidity of the air. A rod 21 is connected to servo-mechanism as in Fig. 1. A drip feed through a connection 27 maintains the level of the water 26.
Patent GB-1197285-A (GB)
Title: New Hub and Reel Construction
IPC: G11B23/037
Filed: 1967-07-24
Abstract: 1,197,285. Tape reels; hubs. AMERLINE CORP. 24 July, 1967 [31 Oct.. 1966], No. 33968/67. Heading B8M. A hub 12 for a tape reel is made of a plastics material moulded to contain a ring- like metal reinforcing element 26, the coefficient of expansion and/or contraction of the hub being substantially equal to that of the magnetic tape wound on the hub. The metal insert is substantially covered on its inner and outer edges by the plastics material and is preferably contained within a central web 20 joining inner and outer cylindrical rims 16, 18 which form the hub. The insert may be made of aluminium or steel and may be continuous or discontinuous. The insert may be in the form of a flat annular ring or may be in the form of a wire which is of circular, square or oval cross-section. When the insert is in the form of a wire, it is preferably located closer to the outer hub rim than to the inner hub rim. The plastics material used may be one or more of ABS, an acrylonitrile, a polycarbonate, or styrene. A tape reel comprises a pair of flanges secured on opposite sides of the hub. The flanges are preferably plastics and may be secured to the hub by boric or solvent sealing.
Patent GB-759008-A (GB)
Title: Improvements relating to sponge rubber bed mattresses
IPC: H02G15/103
Filed: 1954-11-23
Abstract: 759,008. Mattresses. PIRELLI SAPSA SOC. PER AZIONI. Nov. 23, 1954 [Nov. 24, 1953], No. 33970/54. Class 52(4). The upper surface of a sponge rubber mattress is formed with projecting bosses 1 separated by depression 2 to simulate in ordinary stuffed mattresses. Further projections 3 simulate tufting buttons. Bosses 1 may have a square, oblong, rhomboid, triangular, polygonal, circular or elliptical shape.
Patent GB-1328440-A (GB)
Title: Heat exchangers
IPC: F28D7/02
Filed: 1971-07-20
Abstract: 1328440 Tubular heat exchangers; steam generation BABCOCK-ATLANTIQUE 20 July 1971 [22 July 1970] 34048/71 Headings F4A and F4S Heat exchange between primary sodium Nal acting as coolant in a reactor core and secondary sodium Na2 used as a source of heat for a steam generator is effected in a heat exchanger comprising an array of helicoidal tubes 9 disposed around a central sleeve 7 in an elongate cylindrical casing 1 which is closed at the top by a plate 2 and open at the bottom. The lower ends of the helical tubes 9 are connected to a tube plate 6 by way of horizontal tube portions 11 and vertical tube portions 12 disposed within the central sleeve 7. The upper ends of the tubes 9 are connected to an annular tube plate 3 via vertical tube portions 13 which form an annular array around the upper part of the sleeve 7. In use primary sodium enters the heat exchanger through apertures 14 in the upper part of the casing and leaves through the open lower end of the casing whereafter it is collected and then returned to the reactor core. The casing extends through the reactor tank and passes through a horizontal wall 16. The tube plates 3 and 6 are arranged above the level of the primary sodium in the reactor tank whereby their lower faces may be exposed to a neutral atmosphere such as argon.
Patent GB-843136-A (GB)
Title: Improvements in and relating to pharmaceutical compositions
Inventor: GOTTFRIED SIEGFRIED
IPC: A61K33/24
Filed: 1957-10-31
Abstract: Pharmaceutical compositions for systemic application, i.e. by oral, subcutaneous, intra-muscular, intra-articular, intrapertoneal, intra-venous, and intra-rectal routes, comprise a pharmaceutical carrier and biologically active glycyrrhetinic acid (as defined). There may be additionally present an "anti-causative agent" which is defined as meaning an antibiotic, antiseptic, bateriocidal, fungicidal, bacteriostatic insecticidal, antihistaminic, anti-inflammatory compound, an expectorant or an anti-ulcerogenic with which the active substance is stated to act synergistically. Specific examples thereof given are; aspirin, phenylbutazone, hydrocortisone hemisuccinate and prednisone.  Reference is also made to the addition of antacids, analgesics and coagulents.  Specific examples of compositions relate to tablets and to an aqueous injectable composition. Specifications 798,655, 799,415, 843,132, 843,133 and 843,134 are referred to.
Patent GB-618995-A (GB)
Title: Brassiere and method of making same
IPC: A41C3/00
Filed: 1946-11-18
Abstract: 618,995. Brassieres. PLEHN, H. M. Nov. 18, 1946, No. 34117. [Class 141] The breast-supporting pockets 7, 8 of a brassiere are formed from segments each of which is provided with preformed parallel linear reinforcements which are disconnected from those of the adjacent segments but with which, when the segments are sewn together, they form closed geometrical figures increasing in size from the apex of each pocket. The reinforcement may be in the form of stitching 16, as shown, or may be interwoven in the fabric. The lines of reinforcement are preferably along the warp of the fabric. The seams between the segments may be formed with a lattice stitching to allow a certain amount of relative movement between the sections.
Patent GB-1035305-A (GB)
Title: Extrusion press
IPC: B21C23/03
Filed: 1964-08-20
Abstract: 1,035,305. Extruding. BALDWIN-LIMAHAMILTON CORPORATION. Aug. 20, 1964 [Sept. 18, 1963], No. 34133/64. Heading B3P. An extrusion press suitable for both direct and indirect extrusion, comprises an axially movable billet container 28, Fig. 1, having on one side a stationary stem 12 carrying a die 18 and on its opposite side a movable extrusion stem 22, and means 42 for selectively coupling the container to move with the extrusion stem thereby to extrude the billet 40 indirectly through the die. The billet 40 is fed to the extrusion axis by a conveyer 38 and an annular shell disc 36 is fed by a conveyer 32. The container 28 is then moved to the left to enclose the billet and disc, Fig. 3 (not shown). A U-shaped spacer 42 is then moved transversely between the main ram 26 and the container 28, and the ram is actuated hydraulically to move the extrusion stem 22 and its extrusion disc 24 together with the container 28 and thereby extrude the billet through the die 18. This comprises a pair of die inserts 76, 78, Fig. 9 (not shown), whereby two wires 44, 46 are extruded simultaneously. After extrusion the residue 48 adhering to a shell 58, has collected in the shell disc 36 and the wires are sheared therefrom by shear pins 54, 56 operated by a spring-loaded ram 80. The stationary stem 12 is mounted on a transverse slide 14 and after withdrawal of the ram 26 and container 28, the stationary stem is moved out of the extrusion axis, Fig. 5 (not shown), the spacer 42 is withdrawn, and a clearing disc 52, Fig. 6 (not shown), is forced through the container by the extrusion stem 22 to clear the shell and residue out of the container bore and into a recess in the carrier 14. For direct extrusion the spacer 42 is inoperative whereby the container 28 remains stationary.
Patent GB-778355-A (GB)
Title: Glass compositions
IPC: C03C3/07
Filed: 1955-11-29
Abstract: 778,355. Glass. PITTSBURGH PLATE GLASS CO. Nov. 29, 1955 [Dec. 29, 1954], No. 34139/55. Class 56. A glass, particularly for the minor segment of a multifocal opthalmic lens and having a softening point above 1382‹F, a coefficient of thermal expansion 7.0 to 10.0 Î 10<SP>-6</SP> per degree between 25 and 300‹C, and an index of refraction (D line) between 1.57 and 1.67 comprises (per centage parts by weight) SiO 2 , 35-52; one or more of the alkali metal oxides, 6-12; BaO, 28-34; ZrO 2 , 2-15; and one or more oxides selected from CaO, ZnO, PbO, CdO, SrO 5-15 but preferably not more than 10 per cent any one. Optionally there may be present TiO 2  up to 5; Al 2 O 3 up to 5; fining agents (e.g. As 2 O 5  and Sb 2 O 4 ) up to 2 and fluorine up to 1.5 per cent.