baber/WOPTO huggingface dataset:
Patent GB-473968-A (GB)
Title: Improvements relating to pneumatically operated sound producing horns
IPC: G10K9/04
Filed: 1936-04-22
Abstract: 473,968. Fluid-pressure motor horns. LUCAS, Ltd., J., and HARRIS, T. A. April 22, 1936, No. 11475. [Class 13] In a pneumatically-operated horn in which the air pulsation is controlled by the co-operation of a vibratory disc or the like with a seating in the air passage, the vibratory disc is attached to one end of a resilient blade which is fixed at the other end and means are incorporated for varying the effective length of the blade and for adjusting the setting of the vibratory member relative to its seating. As shown in the Figure, the disc d is associated with a seat b formed in the lower portion of a casing a and is carried by a swivel connection e on a blade f clamped between the portions of the casing. The effective length of the blade is adjusted by means of two curved resilient arms i, i riveted to the blade and in engagement with oppositely threaded portions of a screw passing through a hollow screwthreaded sleeve l. The pressure between the disc d and its seating is adjusted by the engagement of the sleeve l with a collar m on the screw j. A horn is attached to the casing by a screw-threaded connection c. In a modification, Fig. 2 (not shown), the ends of the curved resilient arms are clamped between the two portions of the casing and the pressure between the disc and its seat is adjusted by means of a screw-threaded sleeve coaxial with, and external to, the horn connection.
Patent GB-784937-A (GB)
Title: Improvements in the manufacture of compressors
IPC: F04B39/12
Filed: 1954-04-21
Abstract: 784,937. Making compressors; welding by fusion. GENERAL ELECTRIC CO. April 21, 1954 [April 23, 1953], No. 11525/54. Classes 83 (2) and 83 (4). [Also in Group XXVIII] In making a compressor having a frame 2 and a bracket 14 of material thicker than that of the frame and carrying a cylinder, a pair of spaced rails 16 of material of substantially the same thickness as that of the frame is welded to the frame, the bracket is disposed between the rails and is locally welded to the rails. A channel member 17 having side members 16 forming rails of the same thickness as the thin frame 2 of a refrigerant compressor is locally welded at 19 to the frame, a hole 18 being provided in the channel for the bearing sleeve 4 of a shaft 5 driving, through an eccentric 7 and slide 8, the piston 10 of a cylinder 11. The cylinder is secured to the arm 13 of an L-shaped bracket 14, the thick leg 15 of which is placed between the rails 16 and locally fusion welded at 20 to the ends thereof. In a modification the rails have apertures therein through which fusion welds are effected. In a further modification spot resistance welds are made between the rails and leg 15.
Patent GB-1339523-A (GB)
Title: Pipe joint
IPC: F16L47/08
Filed: 1972-03-13
Abstract: 1339523 Pipe couplings; joint-making; packing JOHNS-MANVILLE CORP 13 March 1972 [15 March 1971] 11581/72 Headings F2G and F2B To prevent the entering non-bevelled end 30, of a thin-walled pipe 30, from tumbling gasket 10 out of its groove 22, the end 30 first contacts the gasket 10 at its median plane and, to ensure sealing contact at edge 16, the end 30 exerts a gradually increasing turning movement on flared lip 28, to swivel the gasket in the groove. The pipes may be of P.V.C. overwrapped with continuous helically wound glass filaments. The gasket may be of synthetic or natural rubber.
Patent GB-713844-A (GB)
Title: Multiple effect vacuum evaporator
IPC: B01D1/26
Filed: 1951-05-17
Abstract: <PICT:0713844/III/1> In a multiple effect vacuum evaporator, having separators for removing liquid entrained in the vapour passing from one effect to heat the next, the heating means of the second stage has more heaters than those of the first stage and the total heating area of the second stage is greater than that of the first stage. Liquor to be evaporated is fed, by pipe 9 into pipe 4 and heater 2. Steam is fed to the heater by pipe 13 and the condensate removed by pipe 15.  Heated liquor passes by pipe 3 to separator 1, whence vapours are led by pipe 14 to heaters 6, 61, 611 while concentrated liquor in part returns by pipe 4 to heater 2, and in part is led by pipe 10 and 11 into pipe 7 and heaters 6, 61, 611.  Liquid heated in this second effect passes by pipe 7 to separator 5 whence vapours issue by pipe 18 to water-cooled condenser 19 while concentrated liquor is in part recycled by pipe 8 to the heaters 6, 61, 611 and in part withdrawn by pipe 12.  Non-condensable gases pass by pipe 23 to separator 5.  A vacuum pump is connected by line 22 with the end of the system.  Pipes 7, 8 are connected 24 which helps circulation of boiling liquid at a distance from the separator 5.  The heaters are preferably arranged side by side along pipes 7, 8 and floor area can be saved by dispersing them on each side of these pipes.  A comparative experiment is quoted for the concentration of acid coagulating bath in a rayon factory in a normal multiple effect vacuum evaporator and in one according to the invention.
Patent GB-384536-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/34
Filed: 1932-04-22
Abstract: 384,536. Stuffing - box substitutes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Emmet, W. L. ; 48, Washington Avenue, Schenectady, New York, U.S.A.) April 22, 1932, No. 11618. Convention date, April 22, 1931. [Class 122 (v).] A sealing ring 13 carried by a flexible diaphragm 27 secured to the casing 23, is pressed by springs 15 against a collar 7 secured to the shaft ; sealing liquid being supplied from a chamber 34 through flexible pipes 36 to the bearing faces. Annular and radial grooves 10, 11, the latter having bevelled entrance edges 12, are provided in the bearing face of the collar 7. Drainage from chambers 31, 32 may be pumped back to the supply chamber 34. The chamber 31 may communicate through a clearance 33 with the vacuum chamber of the machine or, in the case of a mercury turbine, may be supplied with gas low in oxygen content and slightly above atmospheric pressure. The diaphragm is of rubber or laminated metal plates and the members 7, 13 of stainless steel and wood respectively.
Patent GB-853727-A (GB)
Title: A process for the production of boron hydrides
Inventor: JEFFERS WILLIAM
IPC: C01B6/10
Filed: 1958-04-11
Abstract: Boron hydrides are prepared by reacting an alkali metal, e.g Li, Na, or K, borohydride with an anhydrous tin halide in vacuo, or in an inert gas atmosphere free from oxidising gases, e.g. a stream of nitrogen.  An intimate solid mixture of finely divided stannous chloride and KBH4 may be reacted at a temperature at which B2H6 is not decomposed immediately on formation, e.g. 150-270 DEG C., with agitation.  The tin halide should be in stoichiometric excess and the reaction may alternatively, be effected in an inert liquid, e.g. paraffin.  B2H6 is condensed in liquid N2 traps and the production of B4H10, B5H9, B5H11, and crystalline B10H14 is referred to.
Patent GB-684301-A (GB)
Title: Improvements in and relating to thermoelectric devices and in silver alloys therefor
IPC: H01L35/16
Filed: 1951-05-21
Abstract: A thermoelectric element consists of an alloy of the following composition: Ag 63-80 per cent, Te and impurities, the remainder. This element may be combined in a thermocouple, with an element consisting of impure Te such as one containing up to 1 per cent of Sb or Bi, or with an element of the composition Ag less than 62 per cent, Te the remainder.
Patent GB-275335-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J21/02
Filed: 1926-05-05
Abstract: 275,335. Round, H. J. May 5, 1926. Vacuum tubes. - In thermionic valves having electrodes arranged mainly one behind another and not wholly one within another, the anode and control grid and the output and input circuits associated therewith are completely screened electrostatically from each other, to reduce inter-electrode. capacity and prevent self-oscillation, an additional grid between the anode and control grid being effectively extended to the walls of the envelope. An electrostatic conductive screen located outside the valve may form an extension of the screening grid, which may be connected to earth preferably through a high-tension battery and may be maintained at 80 volts when the anode is at 120 volts. The screening grid itself extends to the walls of the envelope or is extended by a separate member such as an annulus earthed or connected to the cathode or other point of constant potential. The envelope may comprise a glass cylinder 13, Fig. 1, with end caps 15, 16 provided with contact pins 18 or side contacts. A stem at one end supports a V- or W-shaped filament 1 and a surrounding oval control grid 4 of flattened helical wire or gauze. A stem at the other end supports the screening grid 6 with a rim 17 on one or both sides and a disc anode within the rim 17. The envelope 13 passes through an external screen with a flange or rim 19. In modifications, the grids comprise flat-bottomed dishes surrounding on three sides the filament and anode respectively, or the control grid comprises parallel wires on a metal ring, or the screening grid comprises a gauze or grid iron dish with its edge bent towards and covering the control grid. The anode only may be supported from one stem, the filament and both grids being supported from the other. In a further modification, Fig. 3, a hairpin filament 1 extends into thimbleshaped grids 4, 6 with flattened sides opposite anode plates 9. The grid 6 is extended radially at 17 to the envelope 13. The grids may have open ends. For short-wave applications, the electrode leads may in all modifications be brought out through different parts of the envelope: the anode and filament leads may pass through opposite ends and the leads to the two grids through auxiliary stems at opposite sides. The gettering operation is carried out so that deposited film does not extend from the anode beyond the screening grid; for example, the getter may be placed behind the anode so that the edge of the screening grid casts a shadow.
Patent GB-1388954-A (GB)
Title: Paper size
IPC: D21H17/55
Filed: 1972-03-14
Abstract: 1388954 Aqueous modified polyaminoamide compositions ZSCHIMMER & SCHWARTZ KG 14 March 1972 11917/72 Heading C3R [Also in Division D2] A paper size comprises water and not more than 5 wt. per cent of a product obtained by reacting (a) a polyamide-amine condensation product derived only from a polymeric fatty acid and a polyamine and having a stoichiometric excess of amino over carboxyl groups with (b) an epihalohydrin or α-dichlorohydrin in water. Reactant (a) may be derived from diethylene- or -propylene-triamine or a higher homoloque and have an amine No of at least 150. Reaction of (a) with (b) may be effected in the presence of ammonia or an amine and the product may be dissolved in acid, e.g. formic or acetic to pH 5, before dilution to the required concentration with water. The composition and method of Specification 1,070,696 is disclaimed.
Patent GB-591568-A (GB)
Title: Machine for chipping potatoes and like vegetables
IPC: B26D3/18
Filed: 1945-05-12
Abstract: 591,568. Chipping-machines. PATERSON, R. B. May 12, 1945, No. 11980. [Class 5 (i)] [Also in Group VI] A vegetable chipper has a hopper 10 with an outlet aperture 11 at its base traversed by a knife 13 carried on a reciprocating pusher member 12 which urges the chips against a further transverse row of rotatable cutters 14 raised against the action of the knife blade by adjustably sprung levers 22. The operating crank 17 may be motor or hand driven.
Patent GB-1206682-A (GB)
Title: Improvements in transport systems
Inventor: MERTENS THOMAS
IPC: E01B25/00
Filed: 1968-03-12
Abstract: 1,206,682. Elevated rail system. T. MERTENS. 12 June, 1969 [12 March, 1968], No. 12064/68. Heading B7L. A rail system comprises vehicles 36 running on tracks formed by a pair of vertically spaced U-section rails 30, 32 a pair of tracks being mounted at the opposite ends of support arms (26, 34), Figs. 1-3 (not shown), which are attached to a cross-braced beam structure (16, 18, 20) mounted on vertical pillars (22) the weight of the vehicles being divided between the two rails 30, 32. The vehicles are supported on upper wheels 38 and lower wheels 40, and idler wheels 42 below the upper rail 30 prevent derailment, some or all of the wheels 38, 40 being driven by electric motors. In order to divide the load between upper and lower wheels, Fig. 7, the upper and lower wheels 38, 40 are secured to upper and lower cranked members 46, 52 respectively which can slide vertically within a casing 48 and which have facing T-section grooves 50, 51 in which engage slide elements 58, connected to rods 60 journalled to a shaft 54 mounted to the casing 48. In a modification, Figs. 9, 10, 12 (not shown), the upper and lower cranked members have vertical racks which engage three pinions mounted on shafts rigid with the easing. In a further modification, Fig. 11 (not shown), to allow for rotation of the wheels about a vertical axis to negotiate curves in the track, the upper and lower cranked members are enclosed in a cylindrical housing to which the pinion shafts are fixed and which is rotatable within a casing and has a pair of radial collars engaging rings attached to the inside of the casing to take the weight of the vehicle.
Patent GB-1499661-A (GB)
Title: Process for the production of pile surfaced articles from crystal forming polymers
IPC: B32B27/12
Filed: 1974-03-19
Abstract: 1499661 Pile fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 17 March 1975 [19 March 1974] 12077/74 Heading D1K [Also in Division B2] Pile surfaced sheet material is produced from crystal-forming polymer e.g. polyethylene terephthalate in its amorphous state by bringing it into contact with a heated roller to which it adheres thereby rapidly raising 'ts temperature. The temperature to which it is raised enables; it to be drawn into fibrils on separating the sheet, but is below the crystalline melting point. The fibrils are cooled as they are formed and the polymer then crystallised.
Patent GB-469151-A (GB)
Title: A stand or support for cycles and the like
IPC: B62H3/00
Filed: 1936-04-29
Abstract: 469,151. Cycle-stands. WILKINSON, A. C., and HILL, W. J. April 29, 1936, No. 12139. [Class 136 (i)] A stand of the type adapted to support a bicycle by automatically gripping the sides of one of the wheels comprises two pivotally - connected side members or wheelgripping parts, which carry elongated gripping jaws or bars adapted to grip the sides of wheels of different diameters, and are each provided below the pivot with an arm or abutment adapted to be engaged and depressed or spread apart by the lower part of the cycle wheel so as to cause the gripping jaws or bars to move towards one another and engage the opposite sides of a wheel of any width with a lateral clamping action. The side frames each comprise a pair of end leg members 1 connected together by a lower longitudinal bar 2 and an upper gripping bar or jaw member 3. The two frames are pivotally connected together at each end of the stand by a link 5, pivoted at the ends 6. At about the middle of the longitudinal bar 2 of each frame is secured an operating arm 7, which may be made from strip metal in the form of loop-like brackets shaped as shown, the two brackets (or more than two if desired) overlapping one another in parallel planes, so as to form a V-shaped wheel-receiving cradle 9. When the wheel is inserted, the arms 7 are depressed and spread apart, the V-shaped space 9 becoming more acute, and the jaws 3 are forced inwards to grip the sides of the wheel. Specification 7859/97, [Class 136], is referred to.
Patent GB-831476-A (GB)
Title: Improvements in or relating to bottle-crating machines
Inventor: FAIREST BARRY MORGAN
IPC: B65B21/08
Filed: 1957-04-13
Abstract: 831,476. Crating bottles. MORGAN FAIREST Ltd. April 11, 1958 [April 13, 1957], No. 12141/57. Class 94(1). In a bottle crating machine, bottles travel in spaced formation down a ramp suspended by their necks, and are released into crates travelling horizontally beneath its lower end. The apparatus may operate continuously. Crates 8 are fed by a conveyer 33 on to rails 35 where they are engaged by elements 37, 38 of conveyers 34 and 39 respectively for passage beneath pairs of rails 4 which support the bottles by their necks. Bottles 1 are supplied in two rows by a rotating platform 10 to belts 12 which feed them to a distributing device 16, oscillating about a pivot 17 to supply the bottles to six channels formed by rails 19. Conveyer belts 12, 18 urge the bottles towards a stop bar 80 which is cam operated to release rows of them at spaced intervals on to the rails 4. Their spaced passage under gravity down the rails is controlled by members 6 on bars joining a pair of conveyer chains 25. As the first row approaches a crate, the crate may be tilted forward by a ramp 42, and it may also be tilted backwards, Fig. 12 (not shown), to facilitate the entry of the last row. Micro-switches such as 97, 98, are arranged to contact the bottles and crates so that forward movement of either is suspended in the event of absence of a crate on full complement of bottles. Further switches 112, 113 and a switch adjacent the conveyer 33 cause stoppage of the machine if no crates at all are on the conveyers. The machine is also stopped by a switch 119 if a bottle is raised by fouling the top edge of a crate.
Patent GB-376856-A (GB)
Title: Improvements in or relating to crown blocks for the derricks of well-drilling plant
IPC: B66D3/06
Filed: 1931-04-24
Abstract: 376,856. Well-drilling plant. MINOR, B. S., 1250, O'Farrell Street, San Pedro, California, U.S.A. April 24, 1931, No. 12186. [Class 85.] A crown block for the derrick of a well drilling plant comprises parallel I-beams 13 .. 16, spudding and sand-line sheaves 23, 28 being mounted in strap brackets 21, 27, between the beams 14, 15, while small casing sheaves 19, 20, over which slow-moving parts of the main cable pass, are mounted between the beams 15, 16 and 13, 14 respectively ; upper transverse I-beams 35 carry bearings 36 supporting strap plates 37 between which, and in staggered relation, are arranged large diameter sheaves 39, 40, 41, over which fast moving parts of the main cable pass. The face widths of the group of sheaves 39, 40, 41, and of the sheaves 19, 20, are respectively substantially equal to the face width and the diameter of the group of sheaves 55, 51, 52, 53, in the travelling block suspended therefrom, whereby the cable passes substantially vertically from sheave to sheave. In Fig. 4, the main cable passes from the draw works 50 to the calf wheel 43 by way of sheaves 41, 51, 40, 52, 39, 53, 20, 55, 19 ; for light loads, the cable is not threaded over all the upper sheaves 39, 40, 41 and travelling block sheaves.
Patent GB-848052-A (GB)
Title: Chain-link connecting part for track chains
IPC: B62D55/21
Filed: 1959-04-10
Abstract: 848,052. Endless tracks. MASCHINENBAU G.m.b.H. April 10, 1959 [April 11, 1958; Sept. 1, 1958], No. 12198/59. Class 79(1). A chain-link connecting part for an endless track vehicle comprises a pair of holes 2, 3, for the chain bolts and a slot 4 terminating in both holes, the chain bolts being gripped by tightening a screw 5 the head 6 of which is completely contained within a recessed portion of the connector. The screw 5 may be threaded into a nut 5, Fig. 4 located against movement by flanges 12 and 13 and a pin 20.
Patent GB-623505-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H13/58
Filed: 1947-05-06
Abstract: 623,505. Snap-action switches; switch cases. BRITISH THOMSON-HOUSTON CO., Ltd. May 6, 1947, No. 12257. Convention date, May 7, 1946. [Class 38(v)] A switch for embodying in an electrical appliance, such as a table lamp, has a flexible insulating cover plate 26 located by pins 31 on the hollow base 1 and provided with tags 34 at each corner which are lifted when wiring the switch and normally held down by clamps 27, 28. The base 1 has pockets 12, 13 housing the U-shaped ends 14, 17 of the fixed contacts 10, 11. The switch is wired by first removing the clamp 27 and lifting the two uncovered tags 34, and inserting one lead 24 of the flex into a curved groove 23 in the base, the tags then being bent down and the clamp 27 replaced. Next, removal of the clamp 28 permits lifting of the other two tags and insertion of the ends 21 of the other lead into grooves 19, 20, the conductor ends being soldered in notches 22 in the contact ends 14, 17; finally, these tags are bent down and the clamp 28 replaced. In a modification, Fig. 7, (not shown), a continuous tag may extend the full length of each side of the plate 26. A hollow push-button 36 non- rotatably slidable in the base 1, freely receives a spiral strip 42 and has ratchet teeth 38 which co-operate with teeth 40 in a disc 39 having a slot 41 receiving the strip 42. The lower end of the strip 42 is attached to an insulating toothed member 7 carrying a bridging contact 9 having a pivot point 30 held in a recess 29 in the plate 26 by a spring 44. Depression of the button 36 causes rotation of the contact 9 through 90 degrees to make or break the circuit, but when the spring 44 returns the button the disc turns relatively to it and the contact 9 is not rotated.
Patent GB-1185993-A (GB)
Title: Process for the production of Shaped Structures from Mixed Polyesters of Terephthalic Acid
IPC: D01F6/62
Filed: 1967-03-16
Abstract: 1,185,993. Modified polyethylene terephthalates. FARBWERKE HOECHST A.G. 16 March, 1967 [16 March, 1966], No. 12318/67. Heading C3R. [Also in Division D1] Shaped polyester articles having an improved affinity for cationic dyes, brightening agents and anti-static agents and made by (1) reacting terephthalic acid (or ester-forming derivative thereof), ethylene glycol (or ester-forming derivative thereof) and 0À3 to 3À0% by weight based on the terephthalic acid of either 4,4-bis- (hydroxymethyl) - 1,2 - dithiacyclopentane or a mercaptal or thioketal containing free or esterified hydroxyl or carboxyl groups and of formula (A) where R is a hydrogen atom, or an alkyl, aryl, alkylaryl, halegenoaryl, alkoxyaryl, carboxyaryl or esterified carboxyaryl radical; R<SP>1</SP> has the same meaning as R or together with R forms a carbocyclic or heterocyclic ring; Z is an aliphatic, aromatic or aliphatic radical carrying a carboxy or esterified carboxyl group, an aromatic or aliphatic-aromatic radical containing two carboxyl or esterified carboxyl groups, or an aliphatic radical containing a free or esterified hydroxyl group; Z<SP>1</SP> has the same meaning as Z or together with Z forms a 1,3- dithiane ring carrying as substituents the radicals X and Y in the 5-position, X being a hydroxyl, carboxyl, esterified hydroxyl or esterified carboxyl group or an aliphatic radical carrying a hydroxy, carboxyl, esterified hydroxyl or esterified carboxyl group, and Y being a hydrogen atom or an aliphatic radical carrying a hydroxyl, carboxyl, esterified hydroxyl or esterified carboxyl group, (b) shaping the polyester article from the melt and (c) treating the shaped article with an oxidizing agent, sulphuryl chloride or thionyl chloride. Suitable oxidizing agents are chlorous acid and its salts, aqueous solutions of chlorine, bromine or iodine and aqueous solutions of substances yielding chlorine or bromine (e.g. N-bromo- or N - chloro - succinimide, N - bromophthalimide or sodium p-toluene sulphonamine). Treatment may be effected in the presence of a mineral acid or a carrier substance, e.g. a chlorinated aromatic compound, an alkyl-aromatic compound or an aromatic ether.