baber/WOPTO huggingface dataset:
Patent GB-297722-A (GB)
Title: Improvements in the manufacture of dyestuffs containing chromium
IPC: C09B45/16
Filed: 1927-06-25
Abstract: 297,722. Johnson, J. Y., (1. G. Farbenindustrie Akt.-Ges.). June 25, 1927. Azo dyes, soluble chromium compounds of.- The monazo dye from diazotized 4-chlor-2.aminophenol-6-sulphonic acid and 2 :4-dioxyquinoline is converted by treatment with chromium compounds at ordinary or increased pressure into a complex chromium compound which dyes fast bordeaux-red shades. Specifications 28716/09, 8872/12, 26460/12, 104,045 and 116,535 are referred to.
Patent GB-458117-A (GB)
Title: Improvements in and relating to apparatus for high vacuum distillation
IPC: B01D3/12
Filed: 1935-06-14
Abstract: <PICT:0458117/III/1> In a short path high vacuum distillation apparatus wherein narrow rectangular blocks or plates 1, 2, form the distilling and condensing surfaces respectively, the plates are supported in a vertical or inclined position by means of a cantilever truss 3 attached to an end plate 4, the assembly being enclosed by a vacuum-tight cylindrical casing 5.  Liquid to be distilled is fed to the surfaces 1 by troughs integral therewith, these troughs being supplied from others 9, 8, 7 to ensure even distribution. The residues and distillates are collected in two series of troughs 11 and 12.  Hot oil is circulated through the distilling plates and cold water through the condensing plates, which are preferably made larger in area than the former.  The supply and withdrawal troughs, hot oil and cold water circulation connections occupy the upper and lower segmental spaces between the bank of plates and outer casing, the side segmental spaces being occupied by molecular diffusion or condensation evacuation pumps 15.  All necessary communicating pipes for the accessories pass through the end plate only.
Patent GB-743643-A (GB)
Title: Process for imparting an improved finish to the surface of metals, including iron and steel, by means of diffusion treatment
IPC: C23C8/06
Filed: 1951-07-19
Abstract: Silicon tetrachloride, used in the treatment of iron surfaces to form diffusion alloys, is regenerated by passing the ferric chloride, formed in the diffusion process whilst still in vapour form, through a hollow cylinder down which ferrosilicon powder is allowed to fall.ALSO:Surfaces of iron, copper or alloys thereof are reacted with fine chlorine in conjunction with a chloride of Ti, Sn, Cr, Sb, p Zn, Al, Cu, Si, C, B or N at 850 DEG -1250 DEG C.  Prior to treatment, the surface may be activated by oxidation and reduction, and the diffusion process may take place with the simultaneous application of supersonic waves.  In a continuous diffusion process, the gas mixture may be passed in cocurrent or counter-current, or partly the one and partly the other, with respect to the objects to be treated.  Ferric chloride, formed in the treatment of iron with silicon tetrachloride, may be passed in vapour form through a hollow cylinder down which ferrosilicon powder is allowed to fall, regenerating silicon tetrachloride and forming chemically pure iron.
Patent GB-111695-A (GB)
Title: Improvements in Electric Switches.
Inventor: WIDLAKE HERBERT COURTENAY
IPC: H01H19/10
Filed: 1916-12-01
Abstract: 111,695. Widlake, H. C. Dec. 1, 1916. Controllers, drum.-A controller for two motors or a motor with a double armature has two drums, a, a<1>, preferably of cast iron with grooves b, b<1>, to receive contact segments c, c<1>, c<2> secured by screws. The drums are insulated from the spindle d by fibre, paper, &c. i, and caps j, j<1> are provided at the ends of the drums. A wooden support k carries the contact fingers m, m<1>, m<2>, and the spindle d carries a plate p to hold the drums steady by engagement with a roller on the arm s. The case has a removable cover and the leads are brought in to the sockets of the contact fingers through a sheet of fibre screwed to the casing. The spindle d may project at each end. Drums of different lengths may be used and additional drums may be added.
Patent GB-219332-A (GB)
Title: Improvements in and relating to the roller drawing mechanism of spinning and like machines
IPC: D01H5/22
Filed: 1924-07-18
Abstract: 219,332. Wild, M. July 18, 1924. Roller and roller heads. -In a drawing-mechanism wherein the pressure rollers act by their own weight, the upper intermediate roller 1 is driven from the lower roller 2 by toothed wheels a, b situated at the middle of the rollers. In a modification, to ensure uniform engagement of the teeth and an even drive, two relatively displaced toothed wheels are provided side by side on each roller, as shown in Fig. 3.
Patent GB-596998-A (GB)
Title: Improvements in or relating to variable electric resistances
IPC: H01C10/10
Filed: 1945-07-09
Abstract: 596,998. Indicating oil pressures. SMITH & SONS (ENGLAND), Ltd., S., and RUFFLE, W. H. July 9, 1945, No. 17500. [Class 40 (i)] [Also in Group XXXVI] The pressure capsule of an oil lubricating system may be applied to abut the head 32 of a push rod 18 in a carbon pile resistance 14, whereby movement of the rod 18 in response to pressure changes controls differentially the compression of the top and lower stack parts 15, 16 of the carbon pile 14 to produce a change in effective resistance of the latter and therefore in the actuation of an electrical indicator calibrated in terms of pressure. The carbon pile 14 may be initially compressed independently of the controlling pressure applied to the head 32.
Patent GB-667404-A (GB)
Title: Improvements relating to hand instruments for use with rotary tools
IPC: A61C1/14
Filed: 1949-07-01
Abstract: 667,404. Grinding. BRENNAN, T. J., and PLATARG INSTRUMENTS, Ltd. June 30, 1950 [July 1, 1949], No. 17515/49. Class 60. [Also in Groups VI and XXII] A handpiece for a dental or similar drill has a tubular sleeve axially slidable on the body between two positions, in one of which it covers the chuck adjusting nut and in the other of which it exposes the nut and actuates a locking device which holds the drive spindle against rotation. The drive spindle 5 is carried in bearings 6, 7 in the tubular body member 1 and is counterbored at its forward end to accommodate a double-ended chuck 32, which is tightened by a nut 33. A slidable sleeve 23, in the position shown, covers the nut 33, but when withdrawn towards the right to expose the nut for manipulation, causes an internal shoulder 25 to press balls 21 radially inward and these, bearing on a conical surface 20, thrust a toothed clutch member 14 forward into engagement with a complementary clutch member 10 pinned to the shaft 5. A stud 15 permits sliding of the member 14 without rotation so that the spindle is thus held. When the sleeve 23 is returned to its forward position, the clutch members are disengaged by a compression spring 19. The rear section of the handpiece body may be detachable to allow the fitting of alternative couplings for differing flexible drives, see Figs. 4 and 5 (not shown). Reference has been directed by the Comptroller to Specification 643,140, [Group VI].
Patent GB-353620-A (GB)
Title: Improvements in and relating to wet air cooling systems
IPC: F25D31/00
Filed: 1930-06-06
Abstract: 353,620. Cooling air; refrigerating. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 6, 1930, No. 17551. Convention date, June 24, 1929. [Class 29.] In a system for cooling air by direct contact with a spray of brine, the diluted brine is cooled and concentrated by the direct action of a water vapour refrigerating machine. A part of the vapours exhausted by the machine may be led away, the remainder being condensed and returned to the brine, whereby the concentration may be maintained..
Patent GB-298112-A (GB)
Title: Improvements in or relating to imitation fires
IPC: F24C7/00
Filed: 1927-07-02
Abstract: 298,112. Automatic Telephone Manufacturing Co., Ltd., and Roseby, P. N. July 2, 1927. Imitation fires.-A screen 11 is provided to intercept the light rays passing through the rotary flicker device 10 which would, if allowed to fall on the reflector 15, appear to travel downwardly upon it, and so give an incorrect flame effect. The stove shown comprises two flicker devices, each consisting of an irregularly-surfaced glass dome 10, the two being rotated in opposite directions by any suitable means, for example of the type described in Specification 295,667, [Class 35, Dynamo-electric generators &c.]. The screen 11, which is adjustably mounted in a slot 13 in the back of the stove casing, intercepts the rays through the two domes which would have appreciable downward motion on the reflector, and prevents intermingling of the flicker effects produced by the two devices. The screening may alternatively be provided by darkening a portion of the bulbs of the lamps 16.
Patent GB-273770-A (GB)
Title: Improvements relating to the control and stabilisation of aeroplanes
IPC: B64C1/00
Filed: 1927-07-04
Abstract: 273,770. Marmonier, I.. July 2, 1026, [Convention date]. Fluid-pressure.-The shaft 304 of a servomotor for actuating the control surfaces of an aircraft has a brake drum 351, and an electromagnet 365, which is energized whenever the control element of the servo motor is in its central position, applies blocks 352, 353 to the drum to prevent further rotation of the shaft, but when not so engaged a spring 364 removes the blocks. Instead of the brake being actuated directly by an electromagnet, the magnet may control a single acting pneumatic cylinder by means of two valves, which move together to connect the cylinder alternately to the reduced pressure existing in a chamber 450, Fig. 15, or to atmosphere. Pressure fluid instead of vacuum may be employed throughout, in which case the connections would be reversed. Each servomotor and brake cylinder is supplied from the chamber 450, having two oppositely acting valves controlling communication with two chambers, one of which is open to atmosphere and the other chamber 448 being connected to the source of working fluid such as the engine induction pipe. The pressure prevailing in the chamber 448 is regulated by a spring-loaded valve 462, the tension of the spring being varied by a lever 469, provided with a locking device. The two oppositely acting valves are normally raised by an electromagnet 455 so as to close the outlet to atmosphere and open the passage to the chamber 448. By depressing the plunger 456, or upon failure of the electric circuit, the passage to the chamber 448 is closed and the chamber 450 opened to atmosphere.
Patent GB-1293936-A (GB)
Title: Low speed friction welding
Inventor: ELLIS COLIN RONALD GEORGE
IPC: B23K20/12
Filed: 1969-08-08
Abstract: 1293936 Welding by pressure BRITISH ALUMINIUM CO Ltd 7 Aug 1970 [8 Aug 1969 14 April 1970] 39919/69 and 17776/70 Heading B3R In a method of friction welding dissimilar metal workpieces the workpieces are relatively rotated while in frictional contact for a predetermined period of time and the maximum relative velocity between the contacting faces is within the range thirty to sixty centimeters per second. The invention is particularly concerned with the welding of square or rectangular section aluminium bars to circular section steel billets for electrode assemblies for aluminium smelters, but also describes the welding of an 18/8 stainless steel member to a zirconium 2À25% niobium alloy member. The welding of stainless, carbon and alloy steels and heat resisting nickel-chrome alloy steels to titanium, titanium alloy, zirconium and zirconium alloy steels is also referred to. Values are given for axial and forging loads and ratios thereof to the workpiece areas and for the duration of the frictional heating periods. The axial load applied to the workpieces may be steadily increased, or the relative axial displacement controlled with respect to time during the period of relative rotation. The end portion of the softer of the two dissimilar workpieces may be chamfered to provide an initially reduced contact area.
Patent GB-1299642-A (GB)
Title: Collapsible display unit
Inventor: FARRET PETER PHILIP
IPC: G09F15/00
Filed: 1970-03-12
Abstract: 1299642 Poster frames TRENDMARK Ltd 24 June 1971 [14 April 1970] 17833/70 Heading A4X [Also in Division G5] Rectangular frame 1 supports, by means of hooks 9 joined to springs 8 and eyelets 7, an envelope 6 which holds a poster, the poster being protected against the weather by sealed side edges and top. Stand 2 is attached to base 1 by a spigot (4), Fig. 2 (not shown), and a socket 5. Base 1 has reinforcing bars 12 and the poster is held in envelope 6 by snap fasteners 11. Again, the envelope may be suspended from two hooks (16) Fig.3 (not shown), extending from an upper end of frame 2, the envelope being stiffened by means of a steel rod (17) welded to the envelope.
Patent GB-494915-A (GB)
Title: Apparatus for mechanically treating flax straw or stalks or bast fibres for production of a decorticated and cleaned mass thereof
IPC: D01B1/22
Filed: 1937-06-26
Abstract: 494,915. Decorticating flax &c. PLATT BROS. & CO., Ltd., WILKINSON, H., and PILKINGTON, N. June 26, 1937, No. 17834. [Class 120 (i)] Apparatus for decorticating flax straw or stalks, or bast fibres for the production of wellcleaned line fibre comprises a succession of unit mechanisms each comprising fluted decorticating and crimping rollers which slightly diminish in diameter and so give a reduction in surface speed, and fluted de-crimping or stripping rollers which run at a slightly greater speed than the fluted decorticating and crimping rollers, together with loading and driving means, combined end to end and constituting a complete machine, feeding and delivery devices and means to convey the material from unit to unit the machine submitting the flax straw to a succession of decorticating and crimping and de-crimping or stripping treatments without manual intervention. The machine comprises a feed lattice a, Fig. 4, having a collecting roller b, crushing rollers c and a first unit consisting of fluted decorticating and crimping rollers d<1> .. d4 which diminish in diameter to give a reduction in surface speed and de-crimping or stripping rollers el, e<2>, e<3>, and a second similar unit d<1x> .. e<3x>, the treated material being discharged by a lattice a<x> or fed thereby to a second or third similar apparatus. The upper rollers are loaded by springs f, Fig. 3, and the rollers are positively driven, the lower rollers only of the fluted pairs d' .. d<4x> being driven but both upper and lower rollers in the other cases. Specification 448,571 is referred to.
Patent GB-259524-A (GB)
Title: Gymnastic apparatus
IPC: A63B7/00
Filed: 1926-07-16
Abstract: 259,524. Neurode, D. Neumann-. July 16,1926. Trapezes.-A bar 1, suspended from ropes 4 is bent to a crescent-shape to fit the rope of the neck so that a person may swing as shown in Figs. 3 and 4. Padding 2 may be provided.
Patent GB-1389291-A (GB)
Title: Waste treatment process and apparatus
IPC: C02F1/36
Filed: 1972-04-18
Abstract: 1389291 Drying gases TELECOMMUNICATIONS INDUSTRIES INC 18 April 1972 [22 April 1971] 17937/72 Heading BIT [Also in Division C1] An ozone-containing gas entering through inlet 74a is stabilised by mixing it with a gas (e.g. air or oxygen) entering through inlets 75, 76, and dried by passing it through felt filters 69, 70 and filter 72 comprising cellulose sheet wound on perforated core 73. The dried and stabilised gas is discharged through outlet 78 to an ozone generator (not shown) supplying a water purifying chamber (not shown) from which the exhausted ozonecontaining gas is supplied to inlet 74a.
Patent GB-721243-A (GB)
Title: Improvements in and relating to contacting liquids with gases and/or vapours
Inventor: SMITH ROBERT ATKINSON
IPC: B01D3/00
Filed: 1952-07-16
Abstract: 721,243. Treating gases with liquids. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 15, 1953, [July 16, 1952.] No. 17972/52. Class 55 (2). [Also in Group XIII] The sides 1 of the liquid supply trough or troughs at the top of a scrubbing or cooling tower packed with layers of laths 2 are apertured directly above the laths 2 so that liquid can flow directly on to the top edges of the laths in channels, e.g. grooves 4, in vertical alignment with the laths. The downward extensions of the troughs are serrated to prevent unwanted spread of liquid and are preferably in contact with the laths. The apertures may be rectangular, square, oval or circular, preferably with their lower edges chamfered outwardly.
Patent GB-733742-A (GB)
Title: Improvements in or relating to overload release devices
IPC: F16D43/208
Filed: 1953-06-30
Abstract: 733,742. Overload-release clutches. CAMPBELL & ISHERWOOD, Ltd., and MEREDITH, J. June 30, 1953, No. 18062/53. Class 80 (2). A toothed clutch 17a, between a driving member 16 and an axially-movable member 21 connected through helical splines to a member 19 secured on a driven shaft 23, is normally held engaged by balls 24 housed in radial openings in the hollow shaft 23 and held engaged in a chamfered groove 25 in the hub 22 of member 21 by a central ball 26 loaded by an adjustable spring 17. On overload, member 21 moves axially, due to the helical splines, pushing the balls 24 inwards with a snap action, and the clutch then remains disengaged until re-set. To effect this, a locking member 31 is depressed into engagement with helical teeth 29 on member 21 so as to hold the latter against rotation, and the shaft 23 is turned manually. As shown, member 16 is driven by an electric motor 10 through reducing gearing. The clutch teeth 17a may be helical. Specification 636,404 is referred to.
Patent GB-1090810-A (GB)
Title: Improvements in methods of and apparatus for injection-moulding hot water bottles
IPC: B29C45/16
Filed: 1967-05-17
Abstract: 1,090,810. Injection moulding hot-water bottles. DESMA-WERKE G.m.b.H May 17, 1965 [May 22, 1964], No. 18179/67. Divided out of 1,085,764. Heading B5A. A hot-water bottle is moulded by injecting rubber or synthetic plastics material between mould halves (15), 16 and a core 18, the core being supported at one end by a core holder 19 and at the other by retractable core supports 22. After a majority of the material has been injected, supports 22 are retracted to a position where their end surfaces 22a lie flush with the mould cavity, and further injection may occur to fill the spaces left by the supports. A suspension tab 12 is moulded whose eye is formed by a removable pin 13 and the tab may incorporate a ring 14. In a second embodiment, Fig. 3 (not shown), core 18 is supported from above and below by supports (26) reciprocably mounted in mould halves (15, 16).
Patent GB-348429-A (GB)
Title: Improvements in revolving cylinder internal-combustion engines
IPC: F02B75/18
Filed: 1930-06-13
Abstract: 348,429. Driving-gear. SCH€FER, E., 38, Oberbilker Allee, D³sseldorf, Germany. June 13, 1930, No. 18213. Convention date, Nov. 14, 1929. [Class 7 (ii).] In a revolving- cylinder engine having the cylinders arranged with their axes tangential to a circle around the shaft and wherein the driving - gear comprises pairs of rollers a, d carried by the pistons and engaging a rib g, the rollers are mounted on axles fixed to the pistonrod and rib the is of varying width so that the rollers are maintained in contact therewith throughout the working. The rib has a crest h to receive the rollers a at the moment of explosion. The rib g is shaped to give exhaust and suction strokes longer than the compression and power strokes.
Patent GB-905622-A (GB)
Title: Process for the production of methyl-polysiloxane oxymethylene copolymers
IPC: C08G77/00
Filed: 1961-05-18
Abstract: Methylpolysiloxane-oxymethylene polymers containing the group ­Si-CH2-O-Si­ are prepared by reacting a bromine-substituted methylpolysiloxane of the general formula <FORM:0905622/IV(a)/1> wherein a is not more than 2 and n is more than 1 but not more than 3, with a methylpolysiloxane of the general formula <FORM:0905622/IV(a)/2> in the presence of at least one mol. of potassium hydroxide per gram-atom of bromine and at a temperature above 0 DEG C.  The methylpolysiloxane is either a liquid or is dissolved in an inert solvent.  Examples are given.  The products are stated to be useful as modifying agents for organic plastics and as surface active agents.
Patent GB-924714-A (GB)
Title: Improvements relating to indicator devices
Inventor: HILL DAVID ROBERT
IPC: G08B5/22
Filed: 1960-05-24
Abstract: 924,714. Electric selective signalling. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. May 8, 1961 [May 24, 1960], No. 18230/60. Class 40 (1). An indicator comprises a plurality of coils A, Fig. 1, a selected one of which may be energized to set up a magnetic circuit through core B, base C, pillar D and rotor E, the latter being shaped, e.g. as shown in Fig. 3, so as to form a variable air gap between itself and the coils, the rotor taking up a position in which the minimum air gap is in the magnetic circuit set up by the energized coil. The tip L of rotor E may be bent over towards the coils, and the rotor may extend radially beyond the coils, as shown in Fig. 1, or the maximum radius of the rotor may be less than the radial distance of the coils from pillar D. A plate carrying translucent or cut-out characters is mounted for rotation with rotor E, the characters being projected on to a screen. An extra electromagnet may be provided whereby the rotor may be maintained in its last-assumed position.
Patent GB-696635-A (GB)
Title: Improvements in or relating to razors and blade magazine therefor
IPC: B65D83/10
Filed: 1949-07-12
Abstract: 696,635. Razors. AMERICAN SAFETY RAZOR CORPORATION. July 12, 1949 [Dec. 16, 1948], No. 18379/49. Class 30 [Also in Group XVII] A magazine for dispensing a blade to a razor comprises an elongated, blade-accommodating chamber having end walls, one of which has an exit slot, and a pair of fingers projecting from the slotted end wall, one of the fingers being a positioning finger to ensure proper positioning between the magazine and the razor when a blade is to be transferred, and the other finger preventing proper positioning unless the razor is in readiness for transfer of a blade. As shown in Fig. 4 the parts 20, 21, of a razor head, are secured together by screws 22 to provide a seat for a blade 31. A part 33 of a member 34, pivoted at 32, is urged by a spring 35 to push the blade towards stops 23 on a guard, the pusher 33 being retracted and the bladereceiving space enlarged when finger pressure, on the member 34, overcomes the spring 35. The end wall 38 of a magazine 37 has an exit slot 39 and an ejector 41 moves in a slot 40 to eject the uppermost blade of a stack pressed upwards by a spring. A positioning finger 51 on the slotted end wall of the magazine engages a positioning channel, formed immediately below the blade seat by an integral projection 26 of the part 20, and a second finger 57 is of such length that, when introduced into the razor, its end surface 58 abuts the pusher 33 unless the pusher is first manually retracted to allow the fingers to enter fully and make complete engagement between the razor and the magazine, a projection 56 on the part 20 making snap engagement with a depression 55 on the positioning finger to warn the user that blade transfer may be effected.