baber/WOPTO huggingface dataset:
Patent GB-372355-A (GB)
Title: Process for the manufacture of isocyanates
IPC: C09B43/00
Filed: 1931-02-04
Abstract: Isocyanates are made by causing phosgene to act in the absence of acid binding agents on aromatic aminoazo compounds containing no free sulphonic or carboxylic groups or on salts of such p  aminoazo compounds with indifferent volatile acids, the reaction taking place at an increasing temperature which in general does not finally exceed 100 DEG  C. and in presence of an organic solvent. Urea chlorides are formed intermediately.  In examples, (1) p-aminoazobenzene is dissolved in nitrobenzene, hydrochloric acid gas passed in and then phosgene; after heating to 100 DEG  C. p-phenylazophenylisocyanate is produced which forms a urethane when boiled with alcohol; (2) the hydrochloride of the aminoazo compound from diazotized 4-anisidine and 3-toluidine is pasted with nitrobenzene and treated with phosgene to form the isocyanate ; (3) the hydrochloride of the aminoazo compound from diazotized 2-chloraniline and 3-amino-4-cresolmethyl ether is treated as in (2).
Patent GB-452574-A (GB)
Title: Improvements in photographic apparatus for copying documents
IPC: G03B27/465
Filed: 1935-02-26
Abstract: 452,574. Photographic copying - apparatus. VINTEN, C., VINTEN, W., and VINTEN, Ltd., W., North Circular Road, Cricklewood, London. Feb. 26, 1935, No. 3595. [Class 98 (i)] A photographic copying-apparatus comprises a camera in combination with a subjectholder and the operation of the camera is controlled by movement of a holding member towards and away from a supporting surface for the subject to be copied. As shown, hinged to a base 1 carrying a rubber mat 2 on which is placed the document to be copied is a holding member 3 having a handle 7. Supported on pillars 8 is a plate 9 carrying the camera 10. Lamps 11 are surrounded by a reflecting shield 12. A filter 13 is provided. On raising the holding member 3 a rod 15 hinged thereto rotates the shaft 17 by means of an intermediate arm, and an arm on the shaft 17 operates the rod 19 to swing lever 20 to set the exposure lever of the lens 23 and tip the mercury switch 26 to energize the magnet 28 to bring the catch 29 out of the path of the latch 30 on the holding member 3. The time of exposure is set on a dial. The document is placed on the mat 2, the member 3 is lowered, and the rotation of the shaft 17 feeds the film forward on to the take-up spool. Engagement of the member 3 with the stop 45 on the rod 46 rotates the shaft 48 to operate the shutter release rod to allow the shutter to close, and the mercury switch to assume a horizontal position and de-energize the magnet 28 to allow the catch 29 to lock the holding member 3 in position. At the end of the exposure the shutter lever moves the lever 20 to tip the switch 26, which energizes the magnet 28 to withdraw the catch 29 and enable the member 3 to rise. A spring urged rod engaging the film rises when the film roll is exhausted to tip a mercury switch in the lighting circuit and extinguish the lamps. Guides 53 on the front of member 3 engage corresponding slots in the base 1.
Patent GB-250183-A (GB)
Title: Improvements in or relating to means for storing and feeding long endless bands of flexible material
IPC: G03B21/32
Filed: 1926-02-08
Abstract: 250,183. Rouiller, A. April 4, 1925, [Convention date]. Kinematograph apparatus. - A long flexible endless film or band is spirally coiled within a casing and has a loop portion extending between the outermost and innermost convolutions, means being provided for feeding the band. As shown, the band c has feed perforations and is fed by sprockets e, g through air-tight passages d, h into and out of a box having a cover b. Radial screw-threaded rods f are rotated by any suitable means i so that the bottoms of the threads have a circumferential velocity equal to the velocity imparted to the band by the sprocket.
Patent GB-903384-A (GB)
Title: Pull-operated electric mercury switch
IPC: H01H29/20
Filed: 1958-02-05
Abstract: 903,384. Snap-action switches. PARSONS Ltd., C. H., and HANDLEY, G. B. Feb. 4, 1959 [Feb. 5, 1958], No. 3727/58. Class 38 (5). A switch operated on and off by successive pulls of a chain or cord 12 has two mercury containers 29 pivoted on pins 32 and connected to a rocker 23 by pins 33 thereon engaged in slots 34 in the carriers 31 for the containers 29. The rockers 23 are moved by the chain by a mechanism similar to that of Specification 692,127. Carriers 31 have two spaced slots 34 so that the angular arrangement of rocker and carrier may be adjusted to provide a two-pole switch or a two-way switch. The rocker is urged away from dead-centre to its extreme positions by a lever 45 acted upon by a spring 42 and engaging a roller 39 on the rocker. Specifications 733,226 and 738,088 also are referred to.
Patent GB-943501-A (GB)
Title: Machines for washing dishes
IPC: A47L15/42
Filed: 1961-02-01
Abstract: 943,501. Dish washing machines. DAWSON BROS. Ltd., G. DAWSON, and D. DAWSON. May 1, 1962 [Feb. 1, 1961], No. 3744/61. Heading A4F. A hollow hood for a dish washing machine is of segment shaped vertical cross-section 1 with an arcuate top 2 and front and rear openings each of which are closable by sliding arcuate doors 5 and 6 mounted between pairs of grooves 3 and 4 such that they overlap each other when in fully raised positions. Pivoted arms (not shown) may be used to open and close the doors.
Patent GB-1010714-A (GB)
Title: Improvements in or relating to hydrocarbon oils
Inventor: TIMMONS PETER STANLEY
IPC: C10L1/14
Filed: 1962-01-31
Abstract: Oil compositions comprises a major proportion of a hydrocarbon oil having a boiling range at atmospheric pressure between 80 DEG  and 350 DEG C. and ash not exceeding 0.01% by weight, particularly an aviation kerosene, and a minor proportion of a compound of general formula XOC-Yn-COX1 where Y is selected from the group consisting of (i) a saturated or unsaturated aliphatic hydrocarbon group in which the main chain separating the XOC group and the COX1 group contains not more than four carbon atoms and there are not more than a total of six carbon atoms in any side chain or chains attached to the main chain, (ii) phenyl, (iii) alkyl phenyl wherein there is no alkyl group having more than 20 carbon atoms, (iv) an alicyclic group containing not more than six carbon atoms in the ring and not more than 20 carbon atoms in any side chain, n is 0 or 1, and X and X1 are each selected from the group consisting of (a) -OH, (b) -OHNR1R2R3, wherein R1, R2 and R3 are the same or different and are either hydrogen atoms or hydrocarbon groups, (c) -OHN\sE}R4, wherein R4 is the remainder of a heterocyclic ring which may in turn be part of a condensed ring system, (d) -NR5R6, wherein R5 and R6 are the same or different and are either hydrogen atoms or hydrocarbon groups, except that when n = 1 and the main chain separating the XOC and COX1 groups contains two carbon atoms, X and X1 being different may not be -OH and -NHR respectively, or -NHR and -OHNH2R respectively, wherein R is a monovalent aliphatic hydrocarbon radical containing 4-30 carbon atoms. Typical of many such compounds are oxalic acid, ammonium oxalate, quinoline oxalate, fumaric acid, acetylene dicarboxylic acid, phthalic acid, and 1-cyclohexene-1,2-dicarboxylic acid.  The compositions may also contain an anti-oxidant (e.g. phenyl-alpha-naphthylamine), an anti-static agent (e.g. a mixture of chromium alkyl salicylate and calcium dioctyl sulphosuccinate) an anti-foam agent (e.g. a silicone), a metal deactivator (e.g. disalicylalethylene diamine), a cetane number improver (e.g. an organic nitrate) and a dispersing agent (e.g. a methacrylate/N-vinyl pyrrolidone copolymer).  The compositions are also useful as compression ignition engine fuels and electrical oils.
Patent GB-716896-A (GB)
Title: Improvements in electric battery terminal connectors
IPC: H01R11/28
Filed: 1952-02-13
Abstract: 716,896. Couplings. SKELLERN, R. Jan. 28, 1953, [Feb. 13, 1952.] No. 3847/52. Class 38(1). A battery terminal connector comprises a unitary body formed of a pair of cylindrical portions A<SP>1</SP>, A<SP>2</SP> disposed at right-angles to each other, the portion A<SP>1</SP> having formed in one end a tapered socket B to receive the battery lug and the portion A<SP>2</SP> having formed in its outer end a parallel-sided socket C to receive a cable end, the socket C being lined with a brass bush F inset therein during the moulding of the connector. A screw E passes through an aperture in the end of socket B to secure the connector to the battery lug and screws H clamp the cable end.
Patent GB-342079-A (GB)
Title: Improvements relating to printing machines
IPC: B41L47/46
Filed: 1929-11-05
Abstract: 342,079. Printing. STEPHENSON, A. J., 48, Red Lion Street, Holborn, London. Nov. 5, 1929, No. 3870. [Class 100 (ii).] Rotary machines; addressing machines; printing - surfaces.-In a machine for printing circulars, facsimile letters, &c. in which the printing member includes a detachable inset adapted to be changed after each impression so that the printed matter may include a changeable item such as an address, the inset comprises a backing carrying one or more type-holding channels formed of thin sheet metal, the walls of the channels being stamped or otherwise shaped to agree with the shape of the body of the type. As shown, the type rails 1, Fig. 1, of the segment 2 of a rotary duplicator are cut away near the upper end of the segment, and an inset holder 4 is attached to the body of the cylinder, the holder 4 comprising a plate having overhanging flanges 5 bevelled at the ends to facilitate the insertion of the inset. The latter consists of a sheet-metal plate 7, Figs. 3 and 5, on which are soldered sheet-metal channelled strips 8 pinched in at their upper ends to engage the recesses of I-shaped types 8a, the plate 7 being of slightly less curvature than the holder 4 so as to be retained in position by its own resilience. Additional retaining-means may be provided consisting of pips on the holding-flanges seating in recesses in the inset. The plate 7 is provided at each end with slots through which extensions of the strips are passed and further secured by punching the metal of the extensions upwardly through holes in the plate 7. A transverse ridge 10 forming a stop for the types and a depression 10a of similar shape at the other end facilitate forming the slots, the types being held in position in the channels by pinching the ends of the strips. To remove the inset, a sliding bar 11, Fig. 2, arranged beneath the holder 4 is moved outwardly by means of a finger-piece 12 whereupon a lug 13 on the bar projects the plate 7 into a position where it can be grasped by the hand.
Patent GB-126760-A (GB)
Title: Improvements in and relating to Steel or Iron Structural Work.
Inventor: ROSCOE HARRY
IPC: B63B9/06
Filed: 1918-03-07
Abstract: 126,760. Roscoe, H., and Little, T. R. March 7, 1918. Planks and plates; frames and framing.-The plating elements of constructional ironwork, e.g. a ship, are connected to the framework elements by welding, the joint being strengthened by arranging thickened portions 1<a>, Fig. 1, or 2<a>, Fig. 4, on the outside elements 1, or top tank plating 2, and forming ledges or flanges 3<b>, 4<b>, on the corresponding frame 3, or keelson 4 with spigot portions 3<a>, 4<a> which extend between the adjacent thickened ends of the plating elements. The joint is completed by welding metal 5. The parts may be held together during the welding process by a curved bolt 6 which engages a hole in the frame 3, and is arranged in connexion with a nut 7 and plate 8 to hold the members as shown until the welding metal is deposited, preferably by autogenous welding. The thickening of the plating may be on the inside or the outside, and in the later case they are arranged to be longitudinal so as not to increase unduly the skin resistance.
Patent GB-345417-A (GB)
Title: Improvements in apparatus for the directional transmission and reception of wave energy
IPC: G01S1/02
Filed: 1930-02-06
Abstract: 345,417. Retardation lines. ELECTROACUSTIC GES., Werk, Ravensberg, Kiel, Germany. Feb. 6, 1930, No. 4059. Convention date, April 30, 1929. Addition to 304,124, [Class 40 (iii), Telegraphs, Electric]. [Classes 40 (iii) and 40 (v).] The apparatus described in the parent Specification for the directional reception and transmission of wave energy, wherein a number of fixed oscillators are connected through compensating means to a generator or indicator, is modified in that the oscillators are arranged symmetrically with respect to two main axes. Arrangements having the oscillators (1) at the angular points of a rhombus (2) on two intersecting straight lines of different lengths and (3) on the circumference of an ellipse are described. In the last case, a separate retardation line may be provided in the compensator for each oscillator, the oscillators may be connected in pairs to the ends of a series of retardation lines or the telephone or generator may be connected to one end of a line and the oscillator connections moved along the line. In order to allow of the construction of a compensator having only two lines disposed according to the last arrangement, the oscillators 1 .. 8, Fig. 4, on the ellipse c are placed on two circles of radius r<1>, r<2> respectively. The corresponding retardation lines k<1>, k<2> are connected to the telephone h through transformers t. The inner oscillators are connected to a switch arm m<1> engaging contacts b<1> and the outer oscillators to a second arm m<2> engaging contacts b<2> The common conductors s<1>, s<2> are connected to collecting points i<1>, i<2> respectively. The lines are used twice during a switch-arm rotation of 360‹.
Patent GB-311674-A (GB)
Title: Improvements in or relating to propellors and the like for the propulsion or traction of vessels and for pumping machinery
IPC: B63H23/34
Filed: 1928-02-10
Abstract: 311,674. Lemmon, R. J., and Maisey, A. F. Feb. 10, 1928. Screw propellers are provided with a conduit or conduits extending lengthwise within the compass of the boss from a point in front of the propeller to the wake. The shaft 12, Fig. 2, has a central passage 14 which is fed through side openings 15. The. conduits 20, Fig. 3, are formed in the boss 19. In another construction, channels 30, Fig. 4, are formed on the shaft 27. The Provisional Specification states that separate exterior pipes may be used and that the blades may be perforated. Also other fluids than the medium the propeller works in may be fed to the conduits.
Patent GB-801854-A (GB)
Title: Improvements in land drainage systems
IPC: E02B13/02
Filed: 1956-02-10
Abstract: 801,854. Agricultural drainage. HAWES, S. M. Feb. 11, 1957 [Feb. 10, 1956], No. 4244/56. Class 33. [Also in Group XXXIII] In a land drainage system water is delivered from one side of a parting wall 8, e.g., a sluice between waters, to another side, by means which operate independently of the rise and fall of the waters and which are supported by a pontoon 1 on one side, moored so as to rise and fall with the level of the water, and water is drawn by said means, namely a pump 2, through one or more intake openings 3 and discharged through an outlet pipe 6 to a delivery pipe 19 connected to a wall pipe 2 on or passing through, the parting wall 8, irrespective of the level at which the pontoon floats, Figs. 3, 4 and 6. The pump 2 is preferably of low head high capacity and is driven by an electric motor. The pontoon 1 may be attached to the wall 8 by a mooring pole and a universal joint, whereby it may rise or fall. Discharge may be into an existing sluice channel. The delivery pipe 19 is pivotally connected in line with the wall pipe 12. To keep afloat the pontoon end of the pipe 19 when it is full of water, the pontoon is sufficiently weighted at the opposite end. The pipe 19 may be supported on a separate float. The duct leading from the intake opening(s) is narrowed to a waist at the pump inlet. The delivery pipe 19 can have a pivotal connection at each end, as in Figs. 3 and 6, which consists of flexible hose 22, 28, and at one end, in Fig. 6, a pivot pin 24 on a coupler rod 23 (duplicatable) fixed by a ring flange 25 to the pipe 19, and fitting into a slot 27 in an anchor bracket 26 on the pontoon. At the opposite end there is a universal joint connection around the hose 28 comprising a coupler rod 29 (on a ring flange on the pipe 19), which may be duplicated, having a pivotal connection 30 to a ring 31 rotatable about pivots 32 carried by a cage 33 formed in two halves with clamping rings 34 secured about the pipe 12 by mating flanges 35. The cage 33 may be mounted on a roller bearing 36 on a sluice gate 37. In another form with a different delivery member the latter forms a vertical leg having a tray supported above the pontoon and projecting over its end so that in operation the delivery end of the tray projects over or on to the wall. Fig. 11 shows a pontoon 1a in the form of a modified tubular storage tank in which the wall end of the delivery member 19 is pivotally connected to the pipe 12 by a pin and slide arrangement for a universal joint around flexible hose 28. The inlet duct has an intake extending across the pontoon 1a and above the water line, the intake mouth(s) having a slidable grating 51 hanging from lugs and held by a seating 53 over the intake mouth(s). Catwalks 56 and 57 may be provided, with step rungs 58 between them. A water guide vane or vanes may be mounted in each pivotal connection to guide the water in a streamline manner. A supporting strap may be mounted to engage under the flexible hose 22, 28 to prevent sagging. Modifications of the pipe couplings are referred to.
Patent GB-949765-A (GB)
Title: Improvements in or relating to electrical connectors
Inventor: DEUSEN EDMUND LORENZ VAN
IPC: H01R9/28
Filed: 1962-02-03
Abstract: 949,765. Binding posts and terminal boards. LAGUNA SCIENTIFIC INDUSTRIES. Feb. 3, 1962, No. 4244/62. Heading H2E. A connector comprises a hollow electrically conductive member 14, 15 or 16 (Fig. 2) and an insert of elastic insulating material 22 or 25 extending through the hollow member and being adapted to contract itself within the hollow member upon the application of a predetermined force to permit the insertion of at least one electric conductor 28, 29 (Fig. 5) into the hollow member and to expand itself upon relaxation of the force to press the electric conductor into electrical contact with an inner surface portion of the hollow member. In a modification (Fig. 6, not shown), the insert has a flange beneath the hollow member to retain it. A plurality of connectors may be mounted on an insulating board.
Patent GB-573489-A (GB)
Title: Improvements in or relating to drag scrapers
IPC: E02F3/60
Filed: 1944-03-08
Abstract: 573,489. Drag scrapers. INTERNATION AL COMBUSTION Ltd., and ENNALS E. G. March 8, 1944 No. 4304. [Class 78 (iv) The shock loads of a drag scraper are absorbed by a compression spring f mounted be tween a pair of trun. nions e by means of which housings c that carry sheaves b for the haulage rope g are adapted to swivel and to oscillate.
Patent GB-1373661-A (GB)
Title: Treatment of zirconium dioxide
IPC: C22B34/14
Filed: 1972-02-03
Abstract: 1373661 Dissolution of zirconium dioxide UNITED KINGDOM ATOMIC ENERGY AUTHORITY 3 Feb 1972 [9 Feb 1971] 4311/71 Heading C1A ZrO2 is dissolved out of particulate materials containing uncombined ZrO2 by treating the materials with an aq. mixture of HF and HCl at a temp. of at least 130‹C. under superatmospheric pressure. After dissolution the soln. may be treated with La(NO3)3 in a quantity to react with all the fluoride ion, followed by removal of precipitated rare earth metal fluoride, in order to reduce the radio-activity of the Zr salts. The molar ratio of HCl to HF is preferably 5:1-0À5:1; the amount of acids used, as their saturated solns., being 5-30 pts. by wt. per pt. by wt. of ZrO2. The temp. is preferably 170-250‹ C. The particulate material may be baddeleyite ore having a particle size of 63-250 Ám.
Patent GB-1107743-A (GB)
Title: Substituted benzoic acid lactones having estrogenic properties
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107743/C2/1> wherein A is a -CH=CH- or a -CH2CH2-radical, R is an alkyl, aryl, bromoaryl, aralkyl or R1CO- radical, the R groups being the same or different, wherein R1 is a C1- 6 alkyl group or an aryl, bromoaryl or aralkyl group, and R2 is an alkyl or R1CO- radical are obtained by etherifying and/or acylating the corresponding trihydroxy compound or a derivative of it in which one or both of the phenolic groups are etherified. Therapeutic compositions having estrogenic properties and useful for promoting growth in meat-producing animals, contain the above compounds as active ingredient.  The composition may be in a form suitable for oral or parenteral application, e.g. as a constituent of an animal foodstuff.  Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-816225-A (GB)
Title: ª‰-hydroxybutyric acid para-phenetidide and a process for its manufacture
IPC: C07C233/16
Filed: 1956-02-13
Abstract: The invention comprises b -hydroxybutyric acid para-phenetidide and its preparation by reduction of acetoacetic acid para-phenetidide. Reduction methods referred to include catalytic hydrogenation in presence of a metal of the eighth periodic group, preferably nickel, reduction with nascent hydrogen from aluminium amalgam and alcohol, alkali metals and alcohols or zinc and glacial acetic acid, electrolytic reduction and reduction with lithium aluminium hydride or sodium borohydride.  In examples the reduction is performed (1) by hydrogenation at 80-85 DEG  C. with a nickel catalyst supported on kieselguhr, in methanol; (2) by hydrogenation at 70 DEG  C. with a Raney nickel catalyst, in methanol; and (3) with aluminium amalgam, by heating in ethanol.
Patent GB-863976-A (GB)
Title: Improvements in or relating to liquid pressure apparatus
IPC: F16F9/20
Filed: 1959-02-09
Abstract: 863,976. Stuffing-box substitutes. HENRY, H. P. Jan. 11, 1960 [Feb. 9, 1959], No. 4495/59. Class 122 (5). In a liquid pressure device, such as, for example, a shock-absorber, comprising a piston 17 slidable in a cylinder 11 and mounted on a rod 14 which projects through both ends of the cylinder and has its projectirg portions enclosed by flexible boots 24, 25, the spaces enclosed by the boots are interconnected so that air is displaced from one to the other when the piston moves in the cylinder. The boots 24 and 25 extend respectively between a projection 23 on the cylinder end-plate 12 and a collar 21 on the rod and between a projection 23 on the end-plate 13 and a disc 22 on the rod and their interiors are connected by passages 28 and 29 in the plates 12 and 13, respectively, and a tube 27 in a housing 10 surrounding the cylinder 11 and forming an oil reservoir therefor. Alternatively, the boot interiors may be connected by longitudinal and radial passages in the rod 14 or by a pipe outside the housing 10.