baber/WOPTO huggingface dataset:
Patent GB-374363-A (GB)
Title: Improvements in and relating to spades
IPC: A01B1/02
Filed: 1931-11-13
Abstract: 374,363. Spades. EWERHARD, P., 2, Mittelstrasse, Gevelsberg, Cermany. Nov. 13, 1931, No. 31479. [Class 6 (ii).] A reinforcing and protecting device for spades, wherein the blade a has two springs c integral with or riveted'to it for securing to the shaft, comprises a sleeve e having U-shaped shoulders f extending to both sides and downwardly so as to engage over the upper part of the blade. The shoulders f may grip the blade along part or the whole of its upper edge. The device may be riveted or welded to the blade, and the shoulders may be shaped to provide a tread. The device may be extended downwards as at g in the direction of the central axis of the blade.
Patent GB-768166-A (GB)
Title: Improvements in or relating to the preparation of emulsions of polymers
Inventor: MILLER SAMUEL AARON
IPC: C08F18/08
Filed: 1954-11-01
Abstract: An aqueous dispersion containing 25-65 per cent of polyvinyl acetate and at least one plasticizer, is prepared by polymerizing an aqueous emulsion comprising vinyl acetate and plasticizer in the presence of at least one emulsifier, dispersing agent or surface tension depressant, at least one hydrophilic organic collodal stabilizer, and both a water-soluble inorganic peroxide or persalt and a monomer-soluble alkyl, acyl or aryl peroxide or hydroperoxide. Plasticizers specified are dibutyl and dihexyl phthalates, tricresyl and triphenyl phosphates, chlorinated aromatic hydrocarbons and low molecular weight polymethyl vinyl ether.  Emulsifiers disclosed are sodium lauryl, oleoctyl, and cetyl sulphates, sodium dodecylbenzenesulphonate, sodium dioctylsulphosuccinate, and the cetyl ether of polyethylene glycol.  The stabilizer may be polyvinyl alcohol with 7 to 25 per cent of acetate groups, starch or a modified starch, gum acacia, sodium carboxymethylcellulose or polyammonium methacrylate. Water-soluble catalysts disclosed are potassium and ammonium persulphates, sodium percarbonate and perborate, and hydrogen peroxide, optionally in conjunction with ferric chloride or a cobaltic salt.  Monomer-soluble catalysts which may be used are benzoyl and lauroyl peroxides and t-butyl hydroperoxide.  Optional ingredients are molecular weight regulators such as acetaldehyde, pH buffers such as sodium bicarbonate, acetate or benzoate, and antifoaming agents.  The ingredients may be added continuously to the polymerization system.
Patent GB-957593-A (GB)
Title: Positive displacement rotary pump
IPC: F04C2/44
Filed: 1962-08-16
Abstract: 957,593. Rotary pumps. A. F. MURPHY. Aug. 16, 1962, No. 31573/62. Heading F1F. A rotary pump comprises a cylindrical housing 1 containing a cylindrical rotor 3 of smaller diameter mounted on the end of a driving shaft 2 which is journalled eccentrically in a back cover plate 21, the periphery of the rotor including housings 8 for vanes 10 of dumb-bell shape, in longitudinal cross-section, pivoted in grooves 9 formed at one end of each housing 8. The edges, or ends, 11 of each vane are of identical cylindrical shape whereby either edge can be inserted in the corresponding groove 9 and the vanes can be interchanged, reversed, or replaced when the edges sweeping the inner surface of the housing 1 become worn (Fig. 6, not shown). The edges 11 are made separately from material having a low coefficient of friction e.g; material containing molybdenum disulphide, graphite, or polytetrafluoroethylene, the body 13 of each vane being made from material resistant to corrosion e.g. brass or stainless steel. Each edge includes a longitudinal recess into which the body of the vane is pressed. Alternatively, the edges 9 and body 10 are integral with one another. The vanes may be supported in permanent contact with the surface 12 by springs, rubber compression elements, or the like. The back cover plate 21 includes an inlet port 25 and an outlet port 26 (Fig. 4), each extending through an arc of 90 degrees or less; alternatively, the ports are included in the housing 1. The housing is clamped between the back cover plate 21 and a front cover plate 15 by bolts 20 (Fig. 1), sealing rings 18 being provided, as shown, in each cover plate. An annular projection 19 is included in both cover plates which engage with a corresponding recess 7 on each face of the rotor with just sufficient clearance to allow the rotor to rotate freely. A plurality of pumps of the kind described may be arranged in series to form a multi-stage pump (not shown).
Patent GB-221398-A (GB)
Title: Improvements in and relating to steam, motor, or electrically driven rail coaches orsimilar cars
IPC: B61K13/04
Filed: 1923-12-18
Abstract: 221,398. Wessels, J. A. J. Dec. 18, 1923. Look-out reflectors. - In order to enable the driver of a steam, motor or electrically-driven rail-coach b, when driving backwards, to obtain a clear view of the track to be traversed, an horizontal tube c, Fig. 1, extending from the driver's compartment a to the rear of the coach is fitted along the ceiling or side-wall of the coach and provided wit'h plane mirrors d, e or like reflecting members to give the necessary view. In a modification, Fig. 3, the tube comprises two horizontal portions f, g and a vertical portion h, the longer horizontal portion f being provided with lenses i, k and the vertical portion h witih plane mirrors l, m. In a further modification. Fig. 4, the lenses i, k are replaced by a concave mirror n and a small convex mirror o arranged in front thereof and adapted to reflect the image of the track through a central aperture p in the concave mirror n.
Patent GB-887929-A (GB)
Title: Improved device for depositing bast fibre stalks on or across a conveyor belt of a hacking machine
IPC: D01B9/00
Filed: 1960-09-15
Abstract: 887,929. Feeding fibres to heckling machines. NOVIVLAS N.V. Sept. 15, 1960 [Sept. 16, 1959], No. 31840/60. Class 120(1) Bundles of bast fibre stalks are deposited on or across a conveyer belt 9 of a heckling machine by two transfer flaps 4, 5 which, when in a horizontal position, form a substantially continuous plane with the adjoining edges of the flaps situated over the conveyer belt and which can swing about axes 6, 7 located on either side of the conveyer belt 9 to allow the fibre bundles to fall on or across the belt. The fibre bundles 3 are delivered at regular intervals by rollers 2 and slide across the flaps 4, 5 until arrested by one of two adjustable stops 8, whereupon the flaps, actuated by a Geneva wheel 12, rotate to allow the fibre bundle 3 to contact the belt 9. Further rotation of the flaps 4, 5 releases the fibre bundle so that it freely lies across the conveyer 9.
Patent GB-1007659-A (GB)
Title: Improvements in or relating to resilient platforms for seats
Inventor: SARGINSON JOHN FRANCIS
IPC: A47C7/22
Filed: 1963-08-13
Abstract: 1,007,659. Upholstery supports. PIRELLI Ltd. Aug. 13, 1964 [Aug. 13, 1963], No. 31893/63. Heading A4M. A resilient platform for use as an upholstery support in chairs, beds &c. is adapted to be attached under tension to a framework such that it will deflect by not more than 10 cms. at its approximate midpoint under an applied load of 86 kgs., the platform being of cured rubber composition having the following characteristics:- Modules at 50% elongation 150-400 gms./mm.<SP>2</SP> Elongation at break 300-500% Breaking load 1100-1300 gms./mm.<SP>2</SP> Shore hardness 50-90 Recommended compositions are described.
Patent GB-1477581-A (GB)
Title: High pressure sample injection apparatus and method
IPC: G01N30/32
Filed: 1975-07-30
Abstract: 1477581 Sample injector VARIAN ASSOCIATES INC 30 July 1975 [1 Aug 1974] 31897/75 Heading BIH [Also in Division G1] A sample injector for a high pressure liquid chromatograph for injecting a sample into a high pressure carrier stream comprises: a) structure defining a dispensing chamber for receiving the sample, said dispensing chamber communicating over a path with the carrier stream; b) control structure interposed between said dispensing chamber and the carrier stream for substantially preventing liquid flow from the carrier stream to said dispensing chamber, and for enabling liquid flow from said dispensing chamber to the carrier stream only in response to the pressure in said dispensing chamber being at least equal to that of the carrier stream, and c) pressurizing apparatus for raising the pressure in said dispensing chamber to a value at least equal to that of the carrier stream. As shown sample is drawn from the reservoir 82 into the space 32 by movement of piston 61 to the right, and is then compressed by movement of the piston to the left. When the pressure in the space 32 reaches that of the liquid flowing through valve 36 from inlet 50 to outlet 34, the valve opens and the sample is injected into the liquid stream.
Patent GB-1350248-A (GB)
Title: Method and apparatus for the determination of the oxygen  content of metal melts
IPC: G01N25/04
Filed: 1971-07-07
Abstract: 1350248 Thermal analysis apparatus STAHLWERKE PEINE-SALZGITTER AG 7 July 1971 [7 July 1970] 31917/71 Heading G1N Apparatus for determining oxygen and carbon concentration in molten steel comprises a pair of sampling vessels 15, each having inlet openings 16, 17 covered by a thin metal foil 35, and being attached to a tubular lance 5 by brackets 13, 14, each vessel having a thermocouple 9 with a junction 10 housed in a quartz V-tube 11 secured to a refractory tube 12 attached to the lance, the junction spaced from the side walls and bottom of the vessel and thermocouple leads 7, 8 extending through the bore of the lance to a measuring or indicating instrument 19. One of the sampling vessels containing de-oxidizing agent e.g. aluminium and the other vessel being free of any de-oxidizing agent. A gas bubble deflector 18 is mounted on the lance. In use the vessels are immersed in a melt, the metal foils 35 melting upon immersion so that the vessels are filled with molten metal and are then lifted from the melt and allowed to cool. During cooling the temperatures of the two vessels are measured and the difference in the freezing points of the two samples represents the oxygen concentration in the melt, Fig. 7 (not shown) e.g. a difference of 5À2‹C. represents 0À073 per cent. To determine carbon concentration, the measured freezing point of the sample in which the oxygen is combined with the de-oxidizing agent (the 'killed' sample) is first compensated for the effect of elements known to be present and in known concentrations. The compensated freezing point is then representative of carbon concentration e.g. 1532‹C for steel represents 0À041 per cent carbon. Alternative embodiments of the sampling vessel are described in Figs. 3 to 6 (not shown).
Patent GB-263183-A (GB)
IPC: C25D5/48
Filed: 1926-12-17
Abstract: 263,183. Siemens & Halske Akt.-Ges., (Assignees of Fink, C. G., Pan, L. C., and Chromium Corporation of America). Dec. 18, 1925, [Convention date]. Coating.-In a method of producing protective and resistant coatings on metals such as iron, steel &c., the metal is coated, preferably by electrodeposition, with another metal such as chromium or nickel and the plated metal is immersed in a lead bath, maintained at a temperature of 800‹ C. until it reaches the temperature of the bath for the purpose of eliminating pin-holes &c. The film or coating of lead may be removed from the coated plate by abrasion as e.g. by brushing or by treatment with acid or by both methods.
Patent GB-366072-A (GB)
Title: New intermediate compounds and dyestuffs therefrom
IPC: C09B49/10
Filed: 1930-10-25
Abstract: Sulphur dyes; indophenols.--Indophenols are prepared by oxidizing together a p-aminophenol and a tetra- or penta-alkylindoline of the general formula: <FORM:0366072/IV/1> wherein Ar represents an o-arylene radicle devoid of substituent in the p-position relative to the -NR- group, R may be hydrogen, or an alkyl radicle, and RI, RII, RIII, RIV are the same or different alkyl radicles, or by reacting such tetra- or penta-alkylindolines with a 1.4-nitrosophenol or a quinone chlorimide.  These indophenols or their leuco compounds obtained by reduction processes give green to blue fast sulphur dyes by treatment with sulphurizing agents. In examples (1) 2.2 : 3.3-tetramethylindoline and p-aminophenol are oxidized together and the resulting indophenol reduced in zinc and hydrochloric acid solution to the leuco compound which is sulphurized; the product dyes cotton greenish-blue shades of particular fastness to chlorine; the presence of copper or a salt thereof in the sulphurization process gives a greener shade to the product; (2) Bz-methyl-2.2 : 3.3-tetramethylindoline (prepared by the reduction of isopropylidene-m-toluidine) is oxidized together with p-aminophenol, and the product reduced and sulphurized as in (1); it dyes greenish-blue shades, and similar products are obtained when the isomeric 2.2 : 3.3 : 7-pentamethylindoline (derived from isopropylidene-o-toluidine) is employed.  The Provisional Specification refers to the use of indolines of the above general formula wherein R is defined as representing hydrogen or a hydrocarbon radicle, and RI, RII, RIII, RIV as hydrocarbon radicles.
Patent GB-1042489-A (GB)
Title: Compositions suitable for destroying or inhibiting the growth of unwanted plants, and their use
IPC: C07C317/00
Filed: 1964-08-06
Abstract: Nitro-phenyl sulphoxides having the general formula <FORM:1042489/C2/1> wherein n is 0 or 1, Y represents a halogen atom or a nitro group, a C1-C4 alkyl or alkoxy group, an amino group or a C1-C4 mono- or dialkyl-amino group, and R represents a C1-C8 alkyl or alkenyl group which may be substituted with one or more chlorine or bromine atoms, are prepared by the carefully controlled oxidation of the corresponding sulphides.ALSO:Herbicidal compositions comprise a sulphoxide having the general formula:-  <FORM:1042489/A5-A6/1> wherein n is O or 1, Y represents a halogen atom or a nitro group, a C1 - C4 alkyl or alkoxy group, an amino group or a C1 - C4 mono- or dialkylamino group, and R represents p  a C1 - C8 alkyl or alkenyl group which may be substituted with one or more chlorine or bromine atoms, together with (a) a solid carrier with or without a surface-active agent, (b) a liquid carrier plus a surface-active agent or (c) spray oils boiling from 275 DEG F. to 1000 DEG F. without a surface-active agent. The compositions may be in the form of solutions, suspensions, emulsions, dusts, granules or wettable powders.  Anionic, cationic and non-ionic emulsifiers are specified. The compositions may contain other biologically-active substances e.g. D.D.T., endrin, dieldrin, aldrin, chlordane, Systox (Registered Trade Mark), Methoxychlor, DDVP, Dibrom, Ciodrin, (Registered Trade Mark), Bidrin (Registered Trade Mark), rotenone, pyrethrum, Ferbam, captan, naphthalene acetic acid and 2, 4-D.
Patent GB-175395-A (GB)
Title: A roadwheel rim and gripping device for agricultural tractors and vehicles
IPC: B60B15/02
Filed: 1920-11-13
Abstract: 175,395. Macdonald, M. S. Nov. 13, 1920. Tyres, non-elastic.- Tractor wheels comprise two flat metal hoops a, obliquely-disposed flat metal slabs b spaced apart at equal distances, and detachable angle-section grippers fitting the spaces between the slats. The sides e, c of the grippers are each formed at one end with a hook d, f adapted to hook over the edge of one of the hoops a and at the other end with an open slot coacting with bolts to hold the grippers in place either in the operative position or, when out of use, on the underside of the rim. The angle of the grippers is preferably between 3. and 23 degrees less or greater than a right-angle, and in operative position the grippers incline rearwardly relative to the direction of rotation of the wheel.
Patent GB-208350-A (GB)
Title: Improvements in and relating to steam boilers
IPC: F22B21/14
Filed: 1922-11-23
Abstract: 208,350. Robertson, T. E., (Power Specialty Co.). Nov. 23, 1922. U-tube and like superheaters.-In a water-tube boiler having a superheater arranged between banks of water-tubes, the elements of the superheater are placed so closely toaether that the superheater acts as a leaky baffle, which directs nearly all the furnace gases along the first bank of water-tubes before entering the second bank. The superheater 5, Fig. 1, arranged between the tubes of a Yarrow boiler has U-tube elements, each of which is encased in cast-iron rings 6, Fig. 2. The elements pass through removable plates 9 in the boiler wall and are connected to headers 12 enclosed by a casing 10. A baffle 13 is placed behind the superheater.
Patent GB-264297-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B53/12
Filed: 1925-12-19
Abstract: 264,297. Rotherham, K., and Eyles, A. E. Dec. 19, 1925. Crank - actuated pumps; assembling; relief devices; singleacting bucket-pumps. -The piston consists of a plain bar 2 provided at one side with a recess in which is slidably mounted a block 15 engaged by a rotating crank-pin 14. The piston has a valve-controlled bore 4 through which the liquid passes during the down stroke of the piston. The suction valve housing 17. may be detached from the pump casing to enable the piston to be removed. A relief valve 21 controls communication between the delivery and suction sides of the barrel. The suction inlet may have a lateral adjustable screw to control the area of the inlet passage. The shaft 11 carrying the crank-pin 14 is held in place by a threaded sleeve 16.
Patent GB-1443351-A (GB)
Title: Internal shoe drum brakes
IPC: F16D51/30
Filed: 1973-07-05
Abstract: 1443351 Internal shoe drum brakes; wear adjustment GIRLING Ltd 2 July 1974 [5 July 1973] 32125/73 Heading F2E An internal shoe drum brake includes a shoe 1 applied hydraulically by a piston 6 working in a cylinder 3, and mechanically by a lever 21 pivoted at one end on a housing member 8 in sliding engagement with the cylinder 3, an adjusting strut 11 interposed between the shoe 1 and the housing member 8 has a toothed arcuate edge 15 co-operating with a toothed surface 16 on the member 8, and outward movement of the shoe 1 beyond a predetermined value in the application of the brake separates the toothed edge 15 from surface 16 and moves the strut 11 angularly about its pivot pin 12 whereby on release of the brake the strut 11 and the shoe 1 return to fresh adjusted positions. In the illustrated embodiment pistons 2, 6 of respective single-ended wheel cylinders 3, 5 are adapted to actuate respective shoes 1, 7. Housing member 8 has an extension 9 of piston 2 passing therethrough and the adjusting strut 11 is pivotally mounted on a pin 12 having a limited sliding movement in a slot 13 in an extension 14 of the member 8. The toothed arcuate edge 15 is resiliently urged into engagement with the toothed surface 16 on member 8, and a notch 17 in the strut 11 is engaged by a peg 18 fixed in the web of the shoe 1. If during hydraulic service braking and because of lining wear the movement of shoe 1 exceeds clearance between pin 12 and slot 13 the strut 11 moves with shoe 1 and the edge 15 is disengaged from surface 16 and peg 18 moves strut 11 angularly so that on release the lever takes up a fresh adjusted position in its engagement with member 8. An identical automatic adjuster is provided on wheel cylinder 5 for shoe 7. An adjuster as described above may be provided at each end of a double acting wheel cylinder to adjust both shoes of a leading- trailing shoe brake. For mechanical actuation of the brake of Figs. 1-4 the lever 21 is pivotally mounted on a pin 22 fixed in member 8 and passing through a slot 23 in the piston extension 9 and a thrust link 24 is pivotally connected at one end to lever 21 and at the other end to shoe 7. Lever 21 has a lug 27 and to apply the brake by a hand lever a pull is applied to the lug 27 through a cable or other transmission member. The shoe 7 is applied by link 24 and the shoe 1 by reaction through pin 22 which moves housing member 8, strut 11 and peg 18. The shoes 1, 7 may be actuated at their other ends by means of a lever 30 pivotally mounted on the housing member 8 of cylinder 5 and a link 28 connected between the lever and shoe 1. A lug 29 on lever 30 is engaged by the casing of a bowden cable while the cable itself is connected to the lug 27 on lever 21.
Patent GB-968823-A (GB)
Title: Flanged plastics reel
IPC: B65H75/14
Filed: 1963-08-14
Abstract: 968,823. Reels. E. HAFNER. Aug. 14, 1963 [Sept. 25, 1962], No. 32144/63. Heading B8M. A two-walled, plastics reel flange comprises two flange discs 4, 5 with ribs 7, 8 &c., arranged on their insides and engaging over one another, the adjacent boundary surfaces of the ribs being joined with an adhesive. These ribs preferably enclose spaces-for example annular rings as in Fig. 2, or circles, ellipses, triangles or other polygons (Figs. 3-5, not shown). The discs may be strengthened by cross ribs in these spaces, for example between ribs 7 and 8, 10 and 14, and 9 and 12 (Fig. 1, not shown).
Patent GB-230935-A (GB)
Title: A new or improved steam superheater
IPC: F22G7/10
Filed: 1923-12-22
Abstract: 230,935. Marine & Locomotive Superheaters, Ltd., and Boyes, F. A. Dec. 22, 1923. Coiled and sinuous tube superheaters.-In steam generators of the kind in which the sides and top of the firebox or furnace are covered with water and superheating pipes are located in the fire box, the superheater is arranged with inlet extended through the fire box crown into the steam space with open communication therewith and the outlet delivers to a collecting chamber in valvecontrolled communication with the engine. The superheater elements 15 are placed in the fire box immediately over an arch 14 and have limbs 15<a>, 15<b> secured to couplings on the upper plate 2 from which couplings project tubes 16a, 16<b> which are connected respectively with the transverse saturated steam collector 17 and superheated steam collector 18, which are situated in the steam space. The header 17 has holes forming open communication for the steam, and the header 18 has pipes 26 leading from its ends to the steam dome 8 which is separated from the steam space by the plate 28. The headers may be formed from tubes or castings and are supported by inverted Tee brackets 29. In a modification, two saturated and two superheated steam headers are employed and are placed adjacent to the sides of the steam space. In a further modification, the rising pipes are led through the top corners of the firebox and the unions are protected by fire-brick casings. The headers may be placed outside the steam space. To maintain a circulation in the superheater when steam is shut off from the engine, a blower or ejector may be connected to the chamber 8.
Patent GB-454818-A (GB)
Title: Improvements in or relating to electric drive for vehicle axles, in particular of trolley buses
IPC: B60K17/34
Filed: 1935-11-20
Abstract: 454,818. Electric vehicles; driving gearing. TENNANT, W. J., 111, Hatton Garden, London.-(Tatra Works Ltd. Motor Car & Railway Carriage & Wagon Builders ; 200, Kartouzska, Smichov, Prague) Nov. 20, 1935, No. 32194. [Classes 79 (ii) and 79 (iii)] An electric motor 1 having a vertical shaft, drives two pairs of vehicle wheels 11 through bevel or other gearing 2, 3, differential gearing 4 on a horizontal transverse shaft, bevel or other gearing 5, 6 and two longitudinal shafts 7. The invention is suitable for trolly-buses and permits of low seating arrangements. The shafts 7 drive the wheels, which are mounted on swinging half-axles, through bevel gearing and axle shafts 10. The driving gear may be mounted in a housing attached to the vehicle body or to a central frame member, and this housing and the four wheels may be detached from the rest of the vehicle as a unit, the motor 1 having been previously removed if necessary.