baber/WOPTO huggingface dataset:
Patent GB-1293120-A (GB)
Title: Blowing agent concentrate
IPC: C08J9/06
Filed: 1971-04-19
Abstract: 1293120 Blowing agents concentrates PHILLIPS PETROLEUM CO 19 April 1971 [17 April 1970] 27287/71 Heading C3C A blowing agent concentrate for addition to extrudable plastics material comprises a mixture of a solid ethylene polymer of density, not exceeding 0À935 gm./c.c. and a blowing agent in an amount of from 8 to 15 parts by weight per 100 parts of the ethylene polymer. The ethylene polymer is a homopolymer of ethylene or a copolymer containing a major proportion of ethylene and a minor proportion of at least one other 1-olefin. Specified agents are sodium bicarbonate, ammonium bicarbonate, azobisformamide, 4,4<SP>1</SP> - oxybis - (benzenesulphonylhydrazide), and benzenesulphonylhydrazide. The concentrates may be incorporated in resins such as polystyrene, acrylonitrile-butadienestyrene terpolymers, polyvinyl chloride, nylon, polyester, polyethylene, polypropylene, polybutene, and copolymers of olefins, and may be used to form cellular articles.
Patent GB-158650-A (GB)
Title: Improvements in or relating to ploughs for enabling them to be operated by motor
IPC: A01B3/60
Filed: 1919-11-06
Abstract: 158,650. Blanchard, A. Nov. 6, 1919. Addition to 122,226. Ploughs.-An inclined or swinging plough which, as described in the parent Specification, is moved by a winch 53 hauling on a fixed cable, the winch being driven through a chain and sprocket gear from a motor 52, is now provided with a drive to the wheels 54 so that an alternative or duplex means of propulsion is provided. The wheels 54 are provided with cramps to enable them to grip the ground.
Patent GB-974212-A (GB)
Title: Improvements in carburetting devices for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M3/12
Filed: 1963-07-11
Abstract: 974,212. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. July 11, 1963 [July 13, 1962], No. 27528/63. Heading F1B. In a carburetter having a fuel metering needle 17 operated by a suction-actuated air valve 3 and a fuel nozzle 5b opening into the space between the valve 3 and main throttle valve 2, an idling passage 18 leads from the fuel passage 5 and opens through an orifice 19 downstream of the valve 2. An air orifice 22 may open into the passage 18 from upstream of the valve 2.
Patent GB-1454675-A (GB)
Title: Optical system for objective refractor for the eye
IPC: A61B3/103
Filed: 1974-06-21
Abstract: 1454675 Measuring refraction of the eye TROPEL Inc 21 June 1974 27670/74 Heading G2J An optical system for the objective measurement of the refraction of the eye comprises a source 11 e.g. of infrared or near infrared; a reticle 23 carrying a pattern e.g. slots 26; a polarizing beam-splitter 30 which receives the radiation from source 11 and directs polarized radiation along a path 25 on which is situated the eye 15; a lens 28 for focusing the radiation on to the retina of the eye 15; an element e.g. “-wave plate 33 for altering the polarization of the radiation so that radiation reflected from the retina can pass through the polarizing beam-splitter 30 to a detector 37. A further polarizing beam-splitter 30 may be provided as shown.
Patent GB-367312-A (GB)
Title: Manufacture of cellulose esters
IPC: D01F2/28
Filed: 1931-10-06
Abstract: The process of the parent Specification for treating coagulated cellulose xanthate or cellulose xanthic acid with acetic anhydride or other ortanic acid anhydride, is modified in that the treatment with anhydride is conducted in the presence of a substantial proportion of a salt of weak acid, for example, potassium acetate It is preferred that the salt shall be intimately mixed with the material to be acidylated, for example, by incorporating it in the coagulation bath, or by introducing it into the viscose before coagulation, or by arranging that the material to be acidylated shall be a cellulose xanthate such as potassium cellulose xanthate.  In examples, a viscose made from wood pulp is spun into a coagulation bath containing potassium acetate and acetic acid, the resulting threads being dried and acetylated with acetic anhydride with or without a solvent according to the process of the parent Specification--the product is an acetate silk of improved resistance to boiling water and of increased fastness to ironing; alternatively, the coagulated threads may be treated at 120-130 DEG  C. with butyric anhydride with or without a solvent--the product is an artificial silk having in addition to the properties stated above, a soft feel and enhanced resistance to alkalies.
Patent GB-693215-A (GB)
Title: Improvements in or relating to cartons and like containers
IPC: B65D5/36
Filed: 1949-11-01
Abstract: 693,215. Cartons. WADDINGTON, Ltd., J., and SPINK, G. Dec. 12, 1950 (Nov. 1, 1949], No. 27907/49. Class 18. A carton has creases in the end walls of the body and the lid enabling it to be folded flat, and tabs 8a on the lid which are passed through slots 8c, formed between tabs 4b and the body rear wall 3, to hold the carton closed.
Patent GB-1210885-A (GB)
Title: Improvements in or relating to ploughs
IPC: A01B3/46
Filed: 1968-06-12
Abstract: 1,210,885. Ploughs. ÍVERUMS BRUK A.B. 12 June, 1968 [12 June, 1967], No. 27925/68. Heading A1B. [Also in Division B7] A plough is adapted for various balancing positions whereby the frame portion 2b is adjustable laterally with respect to a pivotally mounted portion 2a by means of disengageable mounting flanges 2d, 2c, portion 2a pivoting about spigot 7 on a forward frame portion 1. The plough frame may be further adjusted relative to the tractor mounting frame A my actuating a hydraulic ram 6 to slide member 1a along axle 5. A bar 8 is hinged at the tractor end on member 1b and at the opposite end is pivotally connected to lever 9a fixed on a vertical pivot 9. By this means steering is self correcting and the wheel 4 maintains a straight course.
Patent GB-1307582-A (GB)
Title: Inhibition of polymerization of acrylic acids
IPC: C07C51/487
Filed: 1970-06-09
Abstract: 1307582 Acrylic acid ROHM & HAAS CO 9 June 1970 [10 June 1969 24 June 1969] 27970/70 Heading C2C The polymerization of acrylic acid is inhibited, particularly during distillation, by adding a compound of general formula where X is a hydrogen, halogen, alkyl group, phenylamino group or acyl group and wherein R is a hydrogen atom or alkyl group, while treating it with an oxygen-containing gas. Diphenylamine, N-methyl diphenylamine, ochlorophenyl-N-aniline, o-methylphenyl-N-aniline or diphenyl-p-phenylene diamine used in examples and an additional inhibitor such as benzoquinone and/or hydroquinone and/or 4- methoxy phenol may be present and the oxygencontaining gas may be air.
Patent GB-430239-A (GB)
Title: Improvements in or relating to looms for weaving
IPC: D03D41/00
Filed: 1933-10-11
Abstract: 430,239. Looms. PHILY, F., 80, Rue de SÞze, Lyons, France. Oct. 11, 1933, No. 28004. Convention date, Oct. 11, 1932. [Class 142 (ii)] Goods of exceptional character, looms specially designed for ; vertical looms.-In looms for weaving wherein a weft thread is passed through a row of loops, each comprising one or more warp threads, the loop-forming work bar 9 is guided around stationary warp yarn guides 31 by a fixed cam 10 which co-operates with a stud 10<11> on the work bar supporting member 8, the latter being pivotally mounted on a reed bar 6 that is rocked by grooved cams 5. The loom is operated electrically under control of shuttle-, warp- and weft-feeler mechanism and the cloth beam 39 is driven by connections 60, 61 from the reed bar 6. Specifications 207,528, 243,340, and 243,341, [all in Class 142 (ii)], are referred to. The Specification as open to inspection under Sect. 91 comprises also the following subjectmatter : Letting-off warps ; take-up motions.-The warp beam may be braked by a band that is resiliently anchored at one end or it may be driven by pawl and ratchet mechanism operated by a Jacquard. The cloth beam 39, Fig. 18 (Cancelled), is driven by a pawl 67 on a loose wheel 65 which is oscillated by springs 63, 60 connected to the loom frame and the reed bar respectively. Temples.-A roller having grooves or a felt or canvas covering and conical end portions is provided on the reed bar for guiding the fabric and tensioning the selvedges. Weft supplying etc.; weft inserters, construction and operation.-The weft is drawn from stationary supplies, passed through tensioning devices and led to weft drawing devices which, with the aid of a Jacquard, present the appropriate thread to a dummy shuttle 19, Fig. 13 (Cancelled). The shuttle is provided with a hook at each end for engaging the weft and is propelled across the loom by rotary picking hammers 47, driven by electric motors, 17, 18, the operation of the pickers being controlled by an alternative distributer. Means are provided for engaging the shuttle feelers during the laying of the pick to prevent interruption of the current. The method of starting, stopping and reversing the loom is also described. The above subject-matter does not appear in the Specification as accepted.
Patent GB-1409162-A (GB)
Title: Moulding insert and assembly for use in fabricating a cube-corner reflector assembly
IPC: B29C33/42
Filed: 1973-06-13
Abstract: 1409162 Moulding reflectors FORD MOTOR CO Ltd 13 June 1973 [28 June 1972] 28050/73 Heading B5A A mould for injection moulding of cube corner reflectors from acrylic plastics comprises a unitary insert A having an array of cube corner projections, the moulding cavity being vented by means of microbores 14 provided at the female apices 12 at the intersections of the projections, the size of the bores (< 0À005 inch) being such that gaseous contaminants may be exhausted from the mould cavity but the moulding material may not pass through. The microbores 14 communicate with the atmosphere through counterbores 16 (0À4 inch), venting manifold 28 and passage 30. The insert is preferably of an electroplated nickel alloy, the bores being laser drilled. Shoulders 10 facilitate positioning of the insert in the mould.
Patent GB-499057-A (GB)
Title: An improved reducing valve for controlling the delivery or discharge of high pressure air or gases
IPC: G05D16/06
Filed: 1937-10-15
Abstract: 499,057. Pressure-regulating valves. COXETER & SON, Ltd., and ADAMS, F. H. Oct. 15, 1937, No. 28096. [Class 135] The discharge of high - pressure gas at a reduced pressure is controlled by a spring- pressed metal needle valve 3 which coacts with a replaceable seating 12 of Babbitt or other relatively soft metal, the valve being closed upon undue rise in pressure of the gas in a delivery chamber 1 which is provided with an outlet pipe 4 and locates the said valve and also a spring-pressed flexible diaphragm 2 connected to the valve through toggle mechanism 11. The seating 12 is retained in a barrel 13, screwed at one end into a barrel 7 housing the valve 3 and provided at the other end with the usual nose 13a for connection to a high-pressure gas bottle, by a screwthreaded bored fitment 14 and a like plug 16, a gauze washer 15 preferably being located between the latter. The barrel 7 is, as shown, in screwthreaded engagement with a hole in the end 6 of the chamber 1 and is formed with outlet ports 8. Low and high pressure gauges 5, 17a may be provided.
Patent GB-601189-A (GB)
Title: Improvements in unit assembly racks for plates, dishes, saucers, cups and like utensils
IPC: A47J47/16
Filed: 1945-10-25
Abstract: 601,189. Plate racks. HICKMAN, B. M. Oct. 25, 1945, No. 28222. [Class 28(ii)] A plate rack can be built up from a set of parts supplied as in Fig. 3, the parts comprising partitions 10 spaced along tie rods 12 by rubber &c. sleeves 14 which support the plates, a channel-shaped receptacle 18 with cup holding pins 20 being coupled to the projectirig ends of tie rods of the main rack. Transverse brackets 15 provide attachment to a wall or, when not fixed to a wall, but resting on a draining board &c. the lower brackets 15 form feet to provide stability. This stability may also be obtained by extending forwardly the walls of the U-shaped receptacle 18.
Patent GB-460607-A (GB)
Title: Improvements relating to pressure lubricating apparatus
IPC: F16N13/16
Filed: 1935-10-15
Abstract: 460,607. Pump valve gear. PILLIN, J. B. Oct. 15, 1935, No. 28452. (Class 122 (ii)] In a high-pressure lubricant pump or gun, a ported valve plate D and valve mechanism for controlling the admission and exhaust of compressed air or other fluid to and from the motor cylinder W, are assembled as a unitary structure and are attached withdrawably to the body A of the motor cylinder. The valve mechanism includes a slide valve L pivoted at Q and having a rod T, the movement of the valve L being effected by a single tension spring P controlled by the piston rod E of the motor. The valve L moves with a snap action. Arcuate movement of the valve L is limited by stops V, X. As shown, the plate D has a duct N open to atmosphere, and a duct M leading to the motor cylinder W. The chamber B is supplied with compressed air. A recess O in the valve L opens the cylinder W alternately to air pressure and to atmosphere to cause reciprocation of the pump plunger H. I is the pump suction duct and K the discharge opening. In a modification, the motor is double-acting and the spring P is connected to the ends of a toggle mechanism, one of the links of which is attached to the valve L. A lost motion connection is provided between the piston rod E and the motor piston.
Patent GB-732639-A (GB)
Title: Heat-transmission process and apparatus therefor
IPC: F28C3/16
Filed: 1953-10-15
Abstract: 732,639. Heating apparatus; steam boilers. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Oct. 15, 1953 [Oct. 17, 1952], No. 28456/53. Addition to 715,789. Classes 64 (2) and 123 (2). In the heat-transmission process and apparatus of the parent Specification, the gaseous medium conducting the heat-transmission solid upwardly at a linear rate of at least 5 metres per second is a mixture of hot combustion gases and an auxiliary gas or vapour, e.g. air, flue gases, steam, or a mixture of air and flue gases. In the form shown, the combustion gases are produced by a liquid fuel burner 3 with primary and secondary air supplies 6, 8. Air to mix with the combustion gases is supplied through an annular chamber 13 with an annular outlet slit. The mixture flowing upwardly entrains finely-divided solid from openings 12 in an annular reservoir 10 receiving the solid through a conduit 11 from the chamber in which it moves downwardly. The controls for the fuel and auxiliary air, and if desired those' for the combustion air, may be coupled so that the auxiliary air supply is increased if the supply of combustion gases is reduced and vice versa. Specification 705,447, [Group XII], is referred to.
Patent GB-1064197-A (GB)
Title: Improvements in or relating to differential pressure measuring cells
IPC: G01L7/08
Filed: 1964-07-10
Abstract: 1,064,197. Pressure gauges. SIEMENS & HALSKE A.G. July 10, 1964 [July 12, 1963], No. 28474/64. Heading G1L. A differential pressure measuring cell is formed by two deformable corrugated chambers 9, 10 interconnected by a central passage and a connecting member 2, 13, 14, 15 passing through the central passage. The outer edges of the members forming the chambers 9, 10 are welded or soldered to upstanding perforated peripheries 22, 23 of a dividing member 1 with or without the interpositioning of thin rings 7, 8. The central passage and chambers 9, 10 are filled with liquid through a passage 19 sealed by a ball 20 held in position by a screw 21.
Patent GB-982663-A (GB)
Title: Treatment of tobacco with organic solvents in the vapour phase
IPC: A24B3/18
Filed: 1962-07-25
Abstract: A process to improve the filling capacity of tobacco comprises subjecting the tobacco at its normal moisture content to the vapour of an aliphatic, aromatic or chlorinated hydrocarbons or a mixture thereof and then drying the tobacco.  The process is carried out at atmospheric pressure and at a temperature between 64 DEG C. and 100 DEG C.  Quantitative examples are given.
Patent GB-377507-A (GB)
Title: Improvements in machines for cutting or slicing articles such as foodstuffs
IPC: B26D1/143
Filed: 1931-10-15
Abstract: 377,507. Cutting foodstuffs &c. LIENARD, L. C. G., 10, Rue Carpeaux-La Varenne, St.-Hilaire, Seine, France. Oct. 15, 1931, No. 28692. Convention date, Oct. 16, 1930. [Class 5 (i).] The blade protector of a bacon-slicing machine with a circular cutter is removed and a bar 1 carrying a series of horizontal blades 2 secured in its stead, the bolts 5, 6 that normally secure the blade protector passing through slots in arms 3, 4, at the ends of the bar 1. The bar may carry thin blades secured in slots, or may be in the form of a spindle carrying cutter discs. The material to be cut is, by the movement of the usual reciprocating-table, brought up to and cut into horizontal strips by the blades 2 and is then cut in the ordinary way by the rotary cutter 7. Reference has been directed by the Comptroller to Specification 9339/10, [Class 28 (ii), Kitchen and like appliances &c.].
Patent GB-258747-A (GB)
Title: Improvements relating to taps, cocks or valves
IPC: F16K5/22
Filed: 1925-11-14
Abstract: 258,747. Leach, R. W. Nov. 14, 1925. Closure members. rotary conical and rotary cylindrical.-To prevent the escape of oil into the valve body of a rotary conical or cylindrical valve, the plug member b or the seat' is provided' with longitudinal lubricating-grooves a, and the body has longitudinally arranged pads d adapted to wipe the edge of the port as the valve is moved to its open position.
Patent GB-1132095-A (GB)
Title: Improvements in or relating to calender roll mechanism in textile processing machines
IPC: D01H1/22
Filed: 1965-10-06
Abstract: 1,132,095. Fluted rollers; stop motions. MAREMONT CORP. 6 Oct., 1965 [7 Oct., 1964], No. 28795/68. Divided out of 1,132,093. Heading DID. In a textile processing machine, drafting mechanism is preceded by fluted calender roll means which comprises a driving-roll, first and second driven rolls, which mesh with the driving roll and are in radially spaced locations about its axis, and means for controlling the depth to which the driven rolls mesh with the driving roll, the depth in the case of the second driven roll being greater than that in the case of the first driven roll. The machine is as is described in Specification 1,132,093, and includes, in addition to the calendering rolls at 90, Fig. I drafting rolls at 20, means 136, 138, for controlling the material between the two sets of rolls, an auxiliary drive for driving the lower front roll of the drafting mechanism, and stop motions effective in the event of laps on the drafting and calendering rolls, and movement of the control means 136. The calender rolls comprise a driving-rolls 92 Fig. 3, and first and second driven rolls 94, 96. The driven rolls are loaded by levers 102 pivoted at 100 and each spring loaded at one end 106, by a spring cylinder 104 between the two ends. The depth to which the rolls 92, 94 mesh with the driving-roll is controlled by a disc 120 on the shaft of the driving roll (Fig. 5) which is engaged by similar discs, e.g. -122, on the shaft of each of the driven rolls. For a sliver .025" thick and necessitating a spacing of this distance between the second roll and the driving roll, the spacing between the first and the driving rolls is .035". The calendering rolls change the direction of material issuing from the drafting rolls through a right angle, thereby facilitating its collection. Stop motion. The end 106 Fig. 4 of each loading lever 102 has an inturned part 108 with an adjustable screw 110 engaging the plunger of a switch 114 so that when a lap occurs on the corresponding roller the part 108 is displaced to operate the switch and render the machine operative. Movement of the end 106 in the opposite direction is limited by an adjustable screw 116, to protect the switch and facilitating insertion of the rolls 94, 96.
Patent GB-464823-A (GB)
Title: Improvements in the treatment of materials with gases or vapours capable of penetration by gas
Filed: 1935-10-18
Abstract: Chemical reactions are produced within a mass of natural or artificial material by subjecting it to the action of a reactive gas or vapour under a rhythmic variation in pressure acting from all sides.  Masses of fibres in balls, cross-wound spools, wound warp beams and rolls of cloth can be thus treated.  In examples: (1) wool yarn on cross-wound bobbins is subjected to gaseous propylene oxide in air of 75 per cent relative humidity for 8 hrs. at 50 DEG  C. under rhythmical oscillations of pressure of about 40 mms. water column at 90 oscillations per minute, whereby the affinity of the wool for dyestuffs is uniformly increased; (2) acetate staple fibre in the form of a compact mass so treated as above in a mixture of ammonia and air in the presence of moisture at 70 DEG  C. until there is, after washing, a loss in weight of 8 per cent due to saponification; (3) skeins of natural silk are saturated with stannic chloride solution, centrifuged, and treated under oscillating pressure with a circulating mixture of ethylene oxide and air at 60 DEG  C.; (4) acetate artificial silk containing 5 per cent oxythionaphthene is treated with air and chlorine of about 35 per cent relative humidity, then with air and ammonia of 75 per cent humidity, under rhythmically oscillating pressure; the material is dyed blue-red.  Specifications 455,849 and 463,043 are referred to.ALSO:Chemical reactions are produced within a mass of natural or artificial material by subjecting it to the action of a reactive gas or vapour under a rhythmic variation of pressure acting from all sides.  Masses of fibres in balls, cross-wound spools, wound warp beams and rolls of cloth can thus be treated.  In examples: (1) wool yarn on cross-wound bobbins is subjected to gaseous propylene oxide in air of 75 per cent relative humidity for 8 hrs. at 50 DEG  C. under rhythmical oscillations of pressure of about 40 mms. water column at 90 oscillations per minute, whereby the affinity of the wool for dyestuffs is uniformly increased; (2) Acetate staple fibre in the form of a compact mass is treated as above in a mixture of ammonia and air in the presence of moisture at 70 DEG  C. until there is, after washing, a loss in weight of 8 per cent due to saponification Specifications 455,849 and 463,043, [both in Group IV], are referred to.
Patent GB-883069-A (GB)
Title: Multiply paper sack with barrier surface
Inventor: PRICE DAVID REES
IPC: B65D30/08
Filed: 1958-09-09
Abstract: 883,069. Multi-ply sacks. BOWATER RESEARCH AND DEVELOPMENT CO. Ltd. Dec. 9, 1959 [Sept. 9, 1958], No. 28923/58. Classes 94(1) and 94(2). A container, e.g. a multi-ply paper sack, is rendered capable of holding triple superphosphate, by coating the innermost ply with calcium carbonate, magnesium carbonate or urea, which reacts with any obnoxious components in or from the contents, e.g. fluorine compounds, and so renders them harmless to the material of the liner. The liner may be of Kraft paper with a polythene film on its inside surface which is coated by calcium carbonate, magnesium carbonate or urea ; or the liner may be impregnated with a solution of the substance. The coating may be applied by rolling, brushing or printing. The requisite amount of neutralising substance may in certain instances, be calculated.