baber/WOPTO huggingface dataset:
Patent GB-832756-A (GB)
Title: Dish washing machines
Inventor: WICKHAM ALFRED HENRY
IPC: A47L15/22
Filed: 1955-12-23
Abstract: 832,756. Dish washing machines. COLSTON Ltd., C. Nov. 22, 1956 [Dec. 23, 1955], No. 36982/55. Class 138(1). A dish washing machine comprises a powerdriven rotary tubular impeller with orifices to discharge jets of liquid in the direction of rotation and at an angle other than radial, and with an interior surface so arranged that washing liquid continuously supplied thereto is constrained to revolve with it whereby the total velocity of the jets is that due to the impressed centrigugal head of liquid within the impeller plus the peripheral velocity of the impeller. The power used to deliver the liquid is low relatively to that used for driving the impeller. In the form shown in Figs. 1 and 2, a horizontal cylindrical plastic impeller 10 is mounted substantially centrally within a cubical washing chamber 4 with a full-width front-opening door 5 hinged at 6. The impeller is rotated about a slotted water-supply tube 12 by means of a spindle 16, a pulley 32 and a driven belt B. The latter also drives the pulley 31A of a pump 30 which draws water through a filter screen 27, past a heater H in a sump 25 and re-circulates it through passage 21 to the tube 12. The impeller 10 is formed with three nozzle heads 35 each having a row of elongated slots 33 providing jet orifices. Fig. 4 shows a pressed-metal impeller formed with nozzles 37 terminating in discharge slots 36. Fig. 7 shows a plain cylindrical impeller 40 with staggered rows of discharge holes 41 adjacent portions 42 producing substantially tangential jets, a rib 43 being arranged behind each row of holes. Alternatively, longitudinally extending orifices may produce sheet-like jets of water. The Provisional Specification also refers to an impeller rotating about a vertical axis, and the use of the pump, after draining of the cabinet, for pumping in drying air from the exterior, a heater being disposed between the pump and the impeller.
Patent GB-338392-A (GB)
Title: Improvements in or relating to book-from savings-boxes
IPC: A45C1/12
Filed: 1929-12-04
Abstract: 338,392. Law. F. J. R. Dec. 4, 1929. Addition to 295,872. Money, boxes specially designed for.-The book-form savings-box of the parent Specification is made entirely of metal, the sides a and back b being bent from a single metal sheet and being rigidly connected and spaced apart by the horizontal edge walls h which are secured by slidable pins engaging inturned rims, f, g of the side walls; the vertical edges of the sides are inturned to form channeled lips n with which the side flanges of the vertical closure member c engage. Spring-controlled guards u for the coin slot t are pivoted in a sheetmetal frame y arranged within the member c : the guards have co-engaging serrated jaws and side cheeks z on the frame y partly enclose the pivot pins of the guards and limit the opening movements thereof.
Patent GB-429989-A (GB)
Title: Index card filing cabinet
IPC: B42F17/02
Filed: 1934-12-28
Abstract: 429,989. Card indexes. HABERFELD, E. O., 46, Sedanstrasse, Weissensee, Berlin. Dec. 28, 1934, No. 37134. [Class 146 (i)] In a filing-cabinet for the insertion of loose index cards and sheets, the bottom part a, Figs. 4 and 5, and the top part or cover b are made identical in their innerdimensions, and are provided with identical systems of ridges c to engage the cards, and supporting plates and apertures i for the supporting rods. The halves may be hinged together, or may be made with divergent walls so that they can be fitted into each other, or may be connected together by an intermediate frame member l having hooks m and locks n adapted to engage excisions or eyelets in the halves a, b; one half may be united to the member l. If each half is made in one piece by pressing, moulding, &c., the handles e, Fig. 5, as well as the recesses f, f for the clasp and lock g, h, are all identically shaped on the two halves. When the cover is removed, part of the cards in the bottom part may be removed and placed in the inverted cover.
Patent GB-1133514-A (GB)
Title: System for operating an optical shutter
Inventor: KOHLER HANS W
IPC: G02B5/23
Filed: 1966-08-18
Abstract: 1,133,514. Optical systems. UNITED STATES OF AMERICA, ARMY, SECRETARY OF. Aug.18, 1966, No.37142/66. Heading G2J. [Also in Division G1] In an optical viewing device means are provided to protect the observer against the blinding effects of intense light produced, e.g. by laser beams or atomic explosions, the means comprising an inertia free shutter in the form of a Kerr cell interposed in the optical path. As shown in Fig. 1 a periscope comprises an objective lens 12 through which light rays 11 enter and travel along an optical path to an eyepiece lens 23, the optical path including, in succession, prism 13, a bundle of optical fibers 14 to produce a time delay of about twenty nanoseconds, prism 15, lens 16, polarizer 17, Kerr cell 18 and an analyzer 22. Light rays 24 from the same source as rays 11 pass through lens 25, prism 26 and lens 27 to a photo-cell 28, the output of the photo-cell passing through a wideband amplifier 32 and rectifier 33 to an output amplifier 34, the amplifier 34 being biased by a voltage at terminal 35 to establish a threshold operating level. When the threshold is exceeded the amplifier 34 applies a voltage through wires 36, 37 across the capacitor plates 19, 21 of the Kerr cell 18, causing rotation of the plane of polarizaion of the polarized light and thereby varying the amount of light transmitted by the analyzer 22. Above a certain light intensity the light transmission is zero. The optical delay means 14 provides the necessary time for the optical shutter to be operated before the light reaches the observer's eyes. In a modification Fig. 3 (not shown) the optical delay means comprises multiple reflections from a pair of opposed mirrors. In another modification Fig. 4 (not shown) intended for protection against laser beams exhibiting a series of pulses, a pulse stretcher and an O R gate are interposed between the amplifiers 32, 34 to ensure that the shutter is kept closed for a period of time considerably longer than the duration of a single pulse.
Patent GB-637375-A (GB)
Title: Improvements in or relating to ultra-high-frequency amplifying circuits
IPC: H01J25/10
Filed: 1946-12-18
Abstract: 637,375. Electron beam valves. PHILIPS LAMPS, Ltd. Dec. 18, 1946, No. 37258. Convention date, Sept. 10, 1943. [Class 39 (i)] An electron beam tube contains in sequence a cathode 1, one or two electrodes 3, 4 at positive mean potential, a control electrode 2 of cathode mean potential, an output electrode system 6, 7 and a collecting electrode 5 ; the voltages on the electrodes and the electrode spacing are so chosen that the transit time of the electrons from cathode to control electrode is an integral multiple of half a cycle. Electrons repelled from the control electrode travel back to the cathode in the same time and cause an increase in space charge which reduces cathode emission, thus reducing the out-ofphase current. Electrode 4 suppresses secondary emission, and a magnetic focusing field may be provided. At a wavelength of 15 cm. the distance from cathode to control grid may be 8 mm. when the potentials of electrodes 3, 4, 5, 6, 7 is about 700 volts.
Patent GB-800856-A (GB)
Title: Improvements relating to tractor-attached mowers
IPC: A01D34/28
Filed: 1954-12-28
Abstract: 800,856. Mowing machines. MASSEYHARRIS-FERGUSON Inc. Dec. 28, 1954 [June 23, 1954], No. 37433/54. Class 6(3). Relates to tractor-attached mowers of the type having a mower bar 17 pivoted on the outer and lower end of a transverse drag-bar 11 carried by a frame 10 attached to the tractor (not shown), the inner end of the mower-bar riding on a shoe 18. According to the invention, an additional support comprises a castorwheel assembly 30, 31, the bracket 32 of which is carried by a yoke 31 rigidly secured to the drag-bar so that the wheel 30 runs on the ground inwardly and rearwardly of the shoe 18. The yoke 31 is arcuate about the transverse horizontal axis through the upper point of attachment of the drag-bar to the frame 10 and the drag-bar is rotatable about this axis to tilt the mower-bar relatively to the ground. The bracket 32 is bolted to the yoke through a slot 61 permitting the bracket to be adjusted, when the mower-bar is tilted, to restore the castor-wheel swivel-axis to the vertical. The inclination of the drag-bar to the ground is also variable and a further slot 63 on the bracket 31 permits a compensating adjustment of the bracket 32. The frame 10 is carried by liftlinks and the mower-bar is suspended, in use, by a separate resilient connection 21 from an arm 20 on the frame 10. Specification 779,630 is referred to.
Patent GB-359287-A (GB)
Title: Improvements in or relating to roller skates
IPC: A63C17/02
Filed: 1930-12-12
Abstract: 359,287. Roller skates. BECKER, R., 5, Garten-Strasse, and BECKER JUNR. AKT.-GES., J. P., 1, Neuenkamperstrasse, both in Remscheid, Rhineland, Germany. Dec. 12, 1930, No. 37560. [Class 132 (i).] A roller skate is formed with a foot-plate made from two relatively adjustable sliding plates 1, 2, Fig. 1, to which are secured U-shaped brackets 3, 4 connected by a brace 10, 11 of adjustable length and consisting of a rod 10 and slotted tube 11 locked by a nut 13. Each plate is formed with a tongue-shaped extension of such a size as to pass between the flanges of the U-shaped brackets, the extension of the plate 1 passing through a slot in the plate 2. The rollers are mounted on axles 8 in bearings 7 carried by a pivot pin 6 mounted in slots in lugs 5 carried by the brackets 3, 4. Between the axle bearing 7 and the web of the bracket 4 is a helical spring 9. Fig. 3 shows a modification in which the brackets 18, 19 carry bolts 21 on which rubber buffers 23 are threaded. Each roller axle bearing 25 is provided with a lug 24 threaded on a bolt 21, and a tubular boss 26 bearing against a lug 27 on the bracket so as to pivot slightly on a pin 28.
Patent GB-958488-A (GB)
Title: Improvements in or relating to coating aluminium
Inventor: WITTROCK HENRY JACOB
IPC: C25D5/44
Filed: 1961-03-22
Abstract: Aluminium or aluminium alloy surfaces are plated with a metal, e.g. Ni or Cr, after anodizing the surface electrolytically using an aqueous mixture of H3PO4 and H2SO4.  A solution containing 5-45% by volume of H3PO4 and 1-30% of H2SO4 is used at 80-140  DEG F. and at 12-120 A.S.F. for 1-30 minutes.  The aluminium is preferably pre-cleaned with alkali solution and etched in weak sulphuric acid. Examples include plating with Ni, Cr or a combination of these with a chromium top coat, applied to aluminium and a range of aluminium alloys.
Patent GB-525814-A (GB)
Title: Catalytic purification of coal tar hydrocarbons
IPC: C07C7/163
Filed: 1938-12-28
Abstract: 525,814. Desulphurizing hydrocarbons. YORKSHIRE TAR DISTILLERS, Ltd., MAXTED, E. B., and BILLBROUGH, S. Dec. 28, 1938, No. 37581. [Class 91] [Also in Group IV] Coal-tar hydrocarbons are desulphurized under substantially non-cracking and non- hydrogenating conditions by passage with hydrogen or a gas containing free hydrogen at an elevated temperature over or through a catalyst consisting of or containing a metallic thiotungstate in which the tungsten is at least equal in weight to the other metal. Suitable temperatures are 300-600‹C. The pressure may be atmospheric, reduced, or raised. Catalysts specified are thiotungstates of cobalt, nickel, iron, and zinc ; they may be on carriers, e.g., pumice, bauxite, kieselguhr. The product may be freed from any hydrogen sulphide produced and retained, e.g., by washing with soda. In an example, commercial benzole is vaporized in a current of hydrogen and passed at 450‹C. and atmospheric pressure over cobalt thiotungstate on bauxite. Toluol, naphthalene, and anthracene may also be treated.
Patent GB-932538-A (GB)
Title: Improvements relating to melt spinning of viscoelastic polymers
IPC: D01D4/02
Filed: 1959-11-06
Abstract: Each of the extrusion orifices of a spinneret for melt spinning polymers which when molten are viscoelastic, non-Newtonian liquids is cylindrical over a major portion of its length in a direction from its outlet to its inlet, the diameter of the cylindrical portion of each orifice is at least 0,5 mm. and the ratio of the length of the cylindrical portion to its diameter is from 6 to 30. The diameter of the cylindrical portion is preferably 0,8 to 1,0 mm.  Molten polyolefines, such as polyethylene, polypropylene and polystyrene are given as examples of viscoelastic highly non-Newtonian liquids as distinct from nylon and polyethylene terephthalate, which in the molten state are stated to be almost Newtonian liquids.  The inlet portion of the spinneret orifice may have the shape of a wide angle truncated cone tapering in the spinning direction and leading to the inlet end of the cylindrical portion of the spinneret orifice.
Patent GB-338757-A (GB)
Title: An oil burner
IPC: F23C99/00
Filed: 1929-12-10
Abstract: 338,757. Takimizu, S., and Idemitsu, H. Dec. 10, 1929. Vaporizing-apparatus; oil-supply and overflow fittings.-Fuel oil from a reservoir 6 drips into a cup 5 and is led to a vaporizing chamber D arranged above a perforated tube A which is surrounded by a perforated tube B in a casing E. The vapour generated in the chamber D leaves through pipes C arranged in channels in the tube A and is discharged at their lower ends so as to burn in the annular space between the tubes A, B. The cup 5 is provided with an overflow pipe 8 at such a level as to prevent unvaporized fuel from entering the pipes C. The vaporizing chamber is heated initially and the issuing gas ignited by burning lighter fuel at an asbestos ring 10 in a cup F which may be adjusted vertically by means of a cam 11. The vaporizing chamber D and pipes 0 may be removed and a cap 3 detached when necessary for cleaning purposes.
Patent GB-339498-A (GB)
Title: An improvement in or relating to turning-lathes and like tools
IPC: B23Q1/66
Filed: 1929-12-11
Abstract: 339,498. McCall, A. K. Dec. 11, 1929. Lathes; drivers and carriers; mandrels.- In a lathe provided with a work turret a turntable c, mounted on a slide d, has journals c<1> and c<2> for spindles f and g, each of the spindles carries a mandrel such as f<1> to take the blanks i, and has a plate f<2> with dogs f<1> to bear against one end of the blanks; the plate runs loose on the spindle f, projections n<1> effecting connection between it and the spindle sleeve n. The work may either be positively rotated, by projections on the driving disc c engaging recesses in the work carrier, or frictionally driven as shown, wherein a plate j, loosely connected through studs and springs to c, has dogs j<3> which bear aganist the blanks and cause rotation. On completion of the operation on one set of blanks which may be one of turning or grinding, the slide d is moved away from the headstock by hand or automatically, and the turntable rotated to present a fresh set of blanks, fixed in position while the others were being operated upon.
Patent GB-1522629-A (GB)
Title: Process for the preparation of catalysts
IPC: B01J37/28
Filed: 1975-09-16
Abstract: 1522629 Hydrotreatment catalysts SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 16 Sept 1975 [18 Sept 1974] 38013/75 Heading B1E [Also in Division C5] Catalysts have a quotient pd>15, where p is the specific average pore diameter in nm and d is the specific average particle diameter in mm; at least 50% of the total pore volume in pores of diameter >100nm; at least 0.2 ml/g of pore volume in pores of diameter >50nm; and a specific surface area >150 m<SP>2</SP>/g, the catalyst comprising a hydrogenation component and having been prepared by the nodulizing technique from a starting material with a specific surface area >200 m<SP>2</SP>/g. The catalyst can be used in the demetallisation and upgrading of hydrocarbon oils.
Patent GB-1434156-A (GB)
Title: N-heterocyclic pulvinic acid amides
IPC: A61P29/00
Filed: 1974-09-02
Abstract: 1434156 Pulvinic acid amides SMITHKLINE CORP 2 Sept 1974 [4 Sept 1973] 38260/74 Heading C2C Novel pulvinic acid amides of the formula in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each H, Cl, Br, F, OH, C 1-4  alkyl, C 1-4  alkoxy; phenyl, phenoxy, fluoroalkyl or, taken together in adjacent positions, methylenedioxy; and Het in a radical of the formulµ in which X is S, NH or O, Y is N or CH, R<SP>5</SP> and R<SP>6</SP> are H, CH 3 , Cl, F or Br or together form a 1,2-phenylene radical, R<SP>7</SP> is H, CH 3 , F, Cl or Br and # indicates an optional double bond, are prepared by reacting the appropriate heterocyclic amines with pluvinic acid lactones of the formula which are prepared by reacting acetic anhydride with the corresponding pulvinic acids of formula obtained by refluxing aqueous acid solutions of the corresponding 2,5-diphenyl-3,4-diazoadiponitriles of the formula resulting from the reaction between the appropriate phenylacetonitriles and ethyl 3- cyano-3-phenylpyruvates of the formula which are made by diethyl oxalate with the appropriate phenylacetonitriles. The following intermediates are also prepared: 4,4<SP>1</SP> - diacetoxypulvinic acid lactone, 4,4<SP>1</SP>- diacetoxy - N - (2 - thiazolyl)pulvinic acid amide, 3 - chloro - 4<SP>1 </SP>- acetoxypulvinic acid lactone, 3<SP>1</SP> - chloro - 4 - acetoxypulvinic acid lactone, 3 - chloro - 4<SP>1 </SP>- acetoxy - N - (2 - thiazolyl(pulvinic acid amide, 3<SP>1</SP>-chloro-4-acetoxy - N - (2 - thiazolyl)pulvinic acid amide, 4 - acetoxy - 3<SP>1 </SP>- trifluoromethylpulvinic acid lactone, 4<SP>1 </SP>- acetoxy - 3 - trifluoromethylpulvinic acid lactone, 4 - acetoxy - 3<SP>1 </SP>- trifluoromethyl - N - (2 - thiazolyl)pulvinic acid amide and 4<SP>1</SP>-acetoxy-3-trifluoromethyl-N-(2- thiazolyl)pulvinic acid amide. Pharmaceutical compositions, suitable for oral or parenteral administration, contain the above pulvinic acid amides and pharmaceutical carriers. The compounds possess antiarthritic activity.
Patent GB-1033559-A (GB)
Title: Improvements in and relating to guards for footwear
Inventor: BALL FRANCIS CHARLES
IPC: A43D3/14
Filed: 1963-09-28
Abstract: 1,033,559. Protecting shoes. F. BALL & CO. Ltd. Oct. 27, 1964 [Sept. 28, 1963], No. 38307/63. Heading A3B. The inside of a shoe is protected from material applied to the outside by two members which fit into and stretch the shoe opening and project thereabove, the first, shoe tree-like, member being biased longitudinally and having a portion extending above the toe portion of the opening, and the second member being biased transversely and extending along and above the sides and heel end of the opening. As described the members are biased by strips of spring steel, the longitudinal strip providing a grip for holding the shoe, e.g. while the old finish is removed and new dye and finish applied.
Patent GB-1168356-A (GB)
Title: Improvements in Civil Engineering Machines
Inventor: FARMERY FREDERICK DESMOND
IPC: B66C23/92
Filed: 1967-08-21
Abstract: 1,168,356. Back stays for jib cranes. PRIESTMAN BROS. Ltd. 1 Oct., 1968 [21 Aug., 1967], No. 38379/67. Heading B8B. [Also in Division E1] To prevent the jib 4 of a crane being luffed upwards beyond the safe limit, a pair of stays 16 are provided, which are loaded by springs 13 so that as the jib is lowered the slack which develops in the stays is taken up. The length of the stays is adjusted by a screw 20 acting between a pivoted member 7 and the base of the crane. The screw 9 which attaches the member 7 to the base must also be adjusted. A single stay only may be provided mounted centrally of the jib. The spring 13 may be replaced by a counterweight acting on a portion of lever 11 which extends towards the jib.
Patent GB-983268-A (GB)
Title: Fluid-pressure operated apparatus
Inventor: POTTS MICHAEL CHARLES
IPC: E21D23/16
Filed: 1962-10-10
Abstract: 983,268. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. Oct. 2, 1963 [Oct. 10, 1962], No. 38396/62. Heading F1P. Each of a series of hydraulic jacks 9 Fig. 1 serves to advance a portion of a conveyer 1 towards the coal face 2 and are so arranged that after operation of the first jack 9 the remainder are sequentially operated by the attainment of a predetermined operating condition, e.g., degree of extension or pressure developed of the preceding jack. One end of each jack cylinder 36 Fig. 4 is pivoted at 11 to the sole beam 5 of a prop assembly 4 whilst the other end is enclosed by a sleeve 12 having a closed end against which the jack rod 13 pushes. Each sole beam also carries a single acting jack 7 by which the beam is pulled towards the face 2; props 6 having been released. Each assembly4 having a jack 9 is accompanied by two other assemblies with jacks 7 but without jacks 9. An assembly of valve units A-D Fig. 3 control fluid to and from jacks 7, 9 through a supply line 15 and return line 16 and units E, F control props 6. In operation and to advance the first jack 9 pressure is admitted through a line 28 to valve B which pivots a lever 25 counterclockwise to open valve A and allow pressure to reach a line 34 leading to the pushing side of said first jack 9. A valve 45 is opened by a predetermined pressure rise on the pushing side of jack 9 and connects line 34 with a second line 28 leading to the valve B of the second jack 9 which when advanced opens an associated valve 45 thereby connecting line 34 with a third line 28 leading to the valve B of the next jack 9 and so on. When all the jacks have been advanced the props 6 of each group of roof supports 4 are released in turn, jacks 7 actuated thereby pulling supports 4 towards the conveyer, jack 9 is retracted and the props re-set. To this end pressure is admitted to a pilot line 23 leading to a valve unit C which rocks lever 26 clockwise to operate valve D thereby connecting supply line 15 to a line 35 leading to the pulling side of jack 7 and to retracting side of jack 9. Line 35 is also connected to valve F which rocks a lever 27 clockwise to open valve E and connect supply line 15 to a line 31 leading to a valve 32 in the pilot line 23 and which is thus opened to allow access of pressure in line 23 to the valve C of the next assembly.
Patent GB-1003542-A (GB)
Title: Puttyless glazing
IPC: E06B3/58
Filed: 1963-10-01
Abstract: 1,003,542. Glazing. H. SIEGMUND and P. MEYER. Oct. 1, 1963 [Oct. 2, 1962], No. 38602/63. Heading E1R. In a glazed window a resilient transversely curved or bent profile strip 4 of p.v.c. containing little or no plasticizer, or a strip 9, Fig. 2, made from non-rusting band steel, or has a non-rusting coating at least at its head portion, seated under force constraint in a groove 5 presses with its head portion 7, the glazing 3 against a self-adhesive rubber strip 2. The foot portion 13, Fig. 2, of the strip 9 is seated under clamping action in groove 5. The head portion of the strip 4 or 9 has a lip 8 which prevents the strip from being pushed too far into the groove. The foot of the glazing strip 4 has a projection having a sharp edge 6, which penetrates into the wood. The foot end portion 13 may be bent upwardly at 14 against the wall of the groove.