baber/WOPTO huggingface dataset:
Patent GB-628852-A (GB)
Title: Improvements in automatically corrected means for removing beetroot tops
IPC: A01D23/04
Filed: 1947-02-27
Abstract: 628,852. Beet topping machines. MOREAU, J. Feb. 27, 1947, No. 5671. Convention date, March 24, 1939. [Class 6(iii)] A beet topping machine comprises a frame unit 5 forming one member of an articulated parallelogram 2, 3, 4 and 5, and supporting a rotary knife 11, and a treadbelt 20 in front of said knife and which is driven at a speed greater than that of the machine itself, said belt being suspended from the member 5 by swinging levers 19 so articulated as to permit the belt to swing fore and aft relatively to the knife in regulating the height of top removal and is characterized in that the swinging levers 19 are suspended from the front arms of a pair of levers 15 fulcrummed at 14, on the frame member 5, the rear arms of these levers being adjustable in length, and being each suspended by a pivoted link 16 from one of the other members of the parallelogram. The movement of the parallelogram is damped by adjustable springs 6, 7 whereby the pressure on the beets may be regulated. In operation, the tread belt contacts a beet top, and swings forward through the levers 19 pivoting on the point 18 and compressing a spring 23 carried on a rod. When the top is cut off by the knife the top is ejected by the springs to a discharging device 13, which consists of a vaned disc driven from the main driving shaft of the machine. On meeting a high beet root the members 3, 4 swing about their articulation to the plate 2, and thereby lift the pivotal point 14 of the lever 15 through an equal distance. The upper end of the link 16 can only rise to about half this distance and so prevents the end of the lever 15 rising to the same extent as its fulcrum. Similarly, the pivot 14 does not rise as much as the pivot 18. By this arrangement the knife does not rise to the same extent as the tread belt and so a larger slice is cut off. Because of the movement of the tread belt a tension compensating device-rollers 27 and 29-is provided for the chain drive 25 for the tread belt.
Patent GB-744767-A (GB)
Title: Improvements in and relating to appliances for producing angular projections of orthographic drawings
IPC: B43L13/10
Filed: 1953-02-28
Abstract: 744,767. Pantographic apparatus. BINNS, S. May 5, 1954 [Feb. 28, 1953], No. 5692/53. Class 97 (3). A pantograph for producing angular projections from orthographic drawings comprises a single parallelogram with two sides prolonged and has four operative points, the outer points being respectively carried by or locatable on the prolongations and the inner points being always maintained on a straight line between the outer points, the inner points being at the mid-points of the other two sides of the parallelogram and cooperating with a guide member so that the inner points each move in a straight line, the two lines being mutually perpendicular. As shown, a stylus 5 and a marker 8 are carried on the prolonged sides 1, 2 of the parallelogram linkage. The other sides 3, 4 are pivoted at 6, 7 to carriages running on rails 10, 11 forming a T-shaped member. When the stylus moves parallel to bar 10, the pantograph operates about point 6, which may be mid-way between the stylus and the marker so that the scale of drawing is 1:1. When the stylus moves parallel to bar 11, the pantograph operates about point 7, between point 6 and marker 8, and the scale of drawing is changed. Movement of the stylus in any other direction results in a movement comprising a combination of two movements at different scales. Alternatively, projections mounted at 6, 7 may engage a T-shaped slot in the base. To produce a projection from an orthographic view, two drawings are made in separated positions, corresponding points being joined afterwards. To achieve the separation, the T-piece 10, 11 is slidable along fixed bars 14, 15 by a rack-andpinion. A scale 31 fixed to the bars indicates the amount of separation. The apparatus runs on castors 45, and a linkage 36, 37, 39 is provided for raising the marker and the stylus.
Patent GB-1393001-A (GB)
Title: Animal pens particularly sow farrowing pens
IPC: A01K1/02
Filed: 1972-02-08
Abstract: 1393001 Animal pens P D FERGUSON 12 Feb 1973 [8 Feb 1972 27 April 1972] 5697/72 and 19530/72 Heading AIM Sow farrowing pen 1 is in the form of a cage structure, end posts 2, 5 being linked by longitudinal bars 3, 6 and by a transverse closure 7 at the inner end of the cage and a removable gate 8 at the outer end. The gate 8 is hinged about a horizontal axis at the top of the gate and opens inwardly to allow for the insertion of, for example, a brush but is restricted by the abutments 15 and the bars 3 so that the animal cannot escape. Additional collars 13A and abutments 15A allow repositioning of the gate.
Patent GB-770531-A (GB)
Title: Manufacture of highly polymeric polymethylene terephthalates
Inventor: FLETCHER NORMAN
IPC: C08G63/83
Filed: 1954-02-26
Abstract: A polyglycol terephthalate suitable for making fibres or films is made by reacting a glycol of formula HO(CH2)n, where n is 2-10 with a dialkyl ester of terephthalic acid in presence of a zinc or manganese compound and subjecting the resultant bis-(hydroxyalkyl) terephthalate to polycondensation in presence of an antimony compound and a trivalent compound of phosphorus.  Specified are: zinc and manganese compounds-zinc acetate, zinc laurate, zinc borate and manganous acetate; antimony compounds-antimony oxide, salts of antimony with inorganic or organic acids (e.g. antimony acetate), double salts (e.g. potassium antimonyl tartrate) and salts of antimony acids (e.g. potassium pyroantimonate); phosphorus compounds-phosphorous acid, its salts or organic esters and esters of thiophosphorous acid, the preferred compound being triphenyl phosphite.  The examples describe the production of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol, ester interchange being effected at 160-215 DEG  C. and polycondensation being effected at a final temperature of 275 DEG  C. and a final pressure of 1 mm. of Hg. Specifications 588,833, 588,834, [both in Group IV], 727,790, 740,381 and 742,196 are referred to.
Patent GB-286453-A (GB)
Title: Improvements in weighing scales
IPC: G01G1/00
Filed: 1927-03-01
Abstract: 286,453. Marks, E. C. R., (Toledo Scale Co.). March 1, 1927. Counter-scales and the like; pendulum-weight apparatus; computing-apparatus.-In a weighing- scale of the kind having an indicator dial extending transversely to a double-armed scale lever which carries the commodity receiver on one arm and has the other arm connected to a pendulum, the latter arm also carries a supplementary weight receiver located externally of the scale lever casing, this weight receiver lying beside the indicator mechanism in such a manner that both the latter parts, seen from the weigher's position, lie behind the commodity receiver. A U-shaped lever 14, fulcrumed on pivots 13, supports at one end a spider 16 carrying a commodity receiver 18 and steadied at the lower end by links 20. A loading receptacle covered by a plate 22 is provided in the spider. At its other end, the lever 14 carries a second spider 29 steadied by a link 33 and supporting, on a post 30, a weights pan 31, Fig. 1. An extension 35 of the lever is connected by a flexible ribbon 37 to a pendulum 38 mounted on self-aligning bearings and carrying an indicating hand 40 cooperating with a fan-shaped computing chart. Owing to the weight of the spider 29 the pendulum is normally maintained in a raised position and falls when a commodity is placed on the goods platform. The weighing capacity of the machine is increased by placing loose weights on the pan 31. Casings.-The platform lever mechanism is enclosed by end and side plates secured together upon a dished base plate 1 and covered by plates 12, 23. A cabinet 24 surmounted by a fanshaped housing 25 is carried by the plate 23.
Patent GB-1015061-A (GB)
Title: A device for mounting panels of differing thicknesses
IPC: E06B3/58
Filed: 1964-02-12
Abstract: 1,015,061. Glazing &c., structures. CONNECTICUT S.p.A. and DRAWNPAN S.r.L. Feb. 12, 1964 [Oct. 11, 1963], No. 5793/64. Heading E1R. A glazing, or other panel mounting structure to accommodate panels 20 of different thicknesses comprises an extruded profiled section plastics or metal sash bar 16 having a plurality of spaced ribs A-D and E-H each having an enlarged head and at least one profiled section glazing strip 8, 9, having a rib I or L also with an enlarged head, for insertion in any one of the grooves formed by the ribs A-H and having inturned end flanges 12, 13 to rest upon the sash bar 16 when one side of the profiled section strip 11 rests against the panel 20.
Patent GB-234907-A (GB)
Title: Improvements in or relating to valve mechanisms for fluid pressure engines and pumps
IPC: F04B19/02
Filed: 1924-03-07
Abstract: 234,907. Ricardo, H. R. March 7, 1924. Valves, arrangement of.-A sleeve valve for internalcombustion or other fluid-pressure engines or compressors or pumps is given a combined sliding and oscillating movement by a lever to one end of which is imparted an approximately circular movement, and which is constrained by a link at the other end, and is connected at an intermediate point to the valve. Fig. 1 shows the lever O actuated by a crank pin P connected at T<1> to the sleeve valve T, and at the other end to a link Q pivoted at Q<1>. The connection T<1> comprises a pin projecting from the valve and sliding within a a spherical member mounted to slide laterally in the lever. In multicylinder engines or pumps, all the valve levers are actuated from a single shaft.
Patent GB-873714-A (GB)
Title: Improvements in containers for dispensing liquid, semi-liquid and powdery substances
IPC: B65D35/28
Filed: 1959-02-20
Abstract: 873,714. Collapsible tubes. GOMM, K. D. March 4, 1960 [Feb. 20, 1959], No. 5864/59. Class 66. A container comprises a collapsible body 1 and a flexible outer casing 5 which are secured to a closure member 2 formed with a nozzle 3. When the casing is squeezed pressure on the body 1 is increased and the body is compressed so forcing the contents of the container out through the nozzle. On releasing the casing air flows into the space 12 through a non-return valve 8. The non-return valve may comprise a flexible disc which covers an opening in the casing.
Patent GB-373090-A (GB)
Title: Improvements in conveyors
IPC: B65G17/10
Filed: 1931-03-04
Abstract: 373,090. Endless rope conveyers. ELLSON, B. E., Abford House, Wilton Road, Victoria, London. March 4, 1931, No. 5918/32. Divided on 372,863. [Class 78 (i).] A conveyer comprises a series of pans F which are overlapped at their adjacent edges to form a trough, and are supported by an endless rope B. In a modification the pans are spaced apart and are connected by chain mesh and suspension lines as described in Specification 372,863.
Patent GB-163817-A (GB)
Title: Improvements in the manufacture of viscose silk
IPC: D01F2/06
Filed: 1920-02-27
Abstract: In the manufacture of the finest threads from a raw viscose solution by a drawing-out process, the concentration of the acid in the precipitating-bath (consisting of a more or less strongly acid solution of a salt such as an alkali or alkali earth sulphate), is regulated so as to be inversely proportional to the fineness of the finished thread.
Patent GB-926748-A (GB)
Title: Improvements in or relating to the cutting of staple fibre
IPC: D01G1/04
Filed: 1962-02-16
Abstract: 926,748. Stapling fibres. ONDERZOEKINGSINSTITUUT RESEARCH, N.V. Feb. 16, 1962 [Feb. 20, 1961], No. 6027/62. Class 120 (3). In a stapling apparatus in which successive portions of an advancing tow of filaments clamped between opposed successive pairs of teeth on the rims of draw wheels rolling together are severed, the movement of knives relative to the tow has chopping and cutting components of approximately the same magnitude and each knife, moving through its own plane, strikes the tow with its edge across the full width of a tow portion and the wear on the knives is thereby minimized. The apparatus shown comprises a rotatable head 13 carrying knives 17 helically disposed around shaft 14 and making an angle of inclination of 45 degrees therewith, and draw wheels 1 and 2 which rotate at the same circumferential speed and have, on flat and conical surfaces, teeth 9 and 10 between which a tow 20 is nipped. The shaft 14 runs parallel to the plane through the shafts 3 and 4 of wheels 1 and 2 and cuts shaft 3 at an angle of 45 degrees. The striking edge of the knives coincides with the tangent line between the surfaces of wheels 1 and 2 so that the surface described by the edges of the knives makes an acute angle with the plane through shafts 3 and 4.
Patent GB-373634-A (GB)
Title: Improvements in electron discharge devices
IPC: H01J17/04
Filed: 1931-02-26
Abstract: 373,634. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. and BEDFORD, L. H., Connaught House, Aldwych, London. Feb. 26, 1931, No. 6029. [Class 39 (i).] In full-wave rectifiers comprising two coaxial anodes and a common indirectly heated cathode 5, each anode has a cooling fin 2 and is supported by rods 3 parallel to the axis of the cathode on one side only thereof. The clearance between each anode and the cathode is of the order of 25 mils or less, preferably 15 mils. Each anode is L-shaped and comprises the tubular part 6 around the cathode and the extended fin 2 grooved to receive the rods 3. The electrodes are steadied by a mica cross-piece 4 at the top and a second crosspiece may be arranged above the pinch 1. Alternatively, the cross-piece may be of metal with insulating bushes. The cross-pieces may be clipped to the outer rods 3 and may guide the other rods and the cathode supports slidably. Electrostatic screens may be placed between each part 6 and the fin 2 of the other anode and between the two parts 6. The discharge may take place in a high vacuum or in a rare gas or metal vapour.
Patent GB-180433-A (GB)
Title: Manufacture of mordant dyeing dyestuffs and chromium compounds thereof
IPC: C09B45/14
Filed: 1921-02-22
Abstract: Azo dyes are obtained by coupling 1-diazo-2-oxynaphthalene-4-sulphonic acid or a derivative thereof with halogen substitution products of a -naphthol; they dye wool from an acid bath red violet shades becoming grey to blue by afterchroming and violet by aftercoppering.  By treating the dyestuffs in known manner with agents yielding chromium there are obtained chromium compounds dyeing wool from an acid bath fast grey, blue, and green shades.  According to examples, 1-diazo-2-oxynaphthalene-4-sulphonic acid is coupled with 1-oxy-8-chloronaphthalene and the dyestuff, after isolation, is heated with chromium oxide, glycerine, and caustic soda solution, the chromium compound of the dyestuff being salted out; the nitrocompound of 1-diazo-2-oxynaphthalene-4-sulphonic acid is coupled with 1-oxy-5 : 8-dichloronaphthalene, the sodium salt of the dyestuff boiled with chromium fluoride and sodium acetate, and the chromium compound of the dyestuffs isolated in the usual manner. A table is given of the tints on wool of the acid dyeings, after-chromed dyeings, after-coppered dyeings, and of the dyeings of the chromium compounds of the dyestuffs from 1-oxy-8-chloronaphthalene or 1-oxy-5 : 8-dichloronaphthalene and the 1-diazo-2-oxynaphthalene-4-sulphonic acid or its chlor-, brom-, or nitro-derivative.  Specifications 15418/04, 3508/11, 20072/11 and 145,053 are referred to.
Patent GB-553630-A (GB)
Title: Improvements relating to thermostatic valves
IPC: F16K11/00
Filed: 1942-05-05
Abstract: 553,630. Thermostats. BRITISH BRASS FITTINGS, Ltd., and SALINGER, G. T. May 5, 1942, No. 6036. [Class 64 (ii)] A valve 5, which may be the fuel supply valve for a burner, the steam supply valve to a radiating system or the air valve of an airconditioning system, is controlled by a temperaturesensitive element comprising alternate concentric high and low expansion members. A tube 12 of high expansion metal is screwed into a socket on the valve casing and carries a collar 13 from which low expansion rods 14 depend. A ring 15 secured to the lower ends of the rods supports a tube 16 of high expansion metal, the upper end of which carries a ring 17 with an adjustable screw 19 to which the valve actuating rod 23 is secured. A pointer 21 indicates the temperature for which the valve is set. The valve is pressed to its seating by a spring 6, and a weaker spring 11 compresses the packing 9. In a modification, the tube 16 is replaced by two smaller tubes whose axes are parallel to the rods 14. The high and low expansion members may be brass and "Invar" (Registered Trade Mark), ebonite and steel, or fused silica and "Monel" (Registered Trade Mark). Specification 442,064 is referred to.
Patent GB-286202-A (GB)
IPC: H01F1/26
Filed: 1928-02-27
Abstract: 286,202. Felten &. Guilleaume Carlswerk Akt.-Ges. Feb. 26, 1927, [Convention date]. Electromagnets.-Magnet cores for pupin coils &c. are formed from ball-shaped iron particles having a diameter less than 0.01 mm., which are coated with an insulating layer and then subjected to a pressure smaller than the elastic limit of the iron powder. Iron powder produced from iron carbonyl is subjected for a long period to a current of hydrogen or other reducing gas at 550‹ C. to effect decarbonization. If sintering occurs, the powder is ground until the particles are of the required size and shape. The particles are then coated with acetyl cellulose by mixing with a solution of acetyl cellulose in acetone and evaporating the solvent. They are then subjected to a pressure high enough to produce a solid core but below the elastic limit of the iron particles, pressures of between 200 and 10000 kg. per sq. cm. being mentioned. Specifications 269,770, and 276,301, [Class 37, Electricity, Measuring &c.], are referred to.
Patent GB-537061-A (GB)
Title: Improvements in enclosed bearings
IPC: F16C33/78
Filed: 1940-04-04
Abstract: 537,061. Stuffing-box substitutes. AKTIEBOLAGET SVENSKA KULLAGER-FABRTKEN. April 4, 1940, No. 6122. Convention date, May 4, 1939. [Class 122 (v)] In a bearing with two relatively rotatable members 12, 13, one within the other, a closure comprises a pair of plates 1, 2 secured to one of the members and enclosing a ring 3 of flexible material which is wrapped over the edge of one plate and enters a groove 7 in the other member. The edges 8, 9 of the groove act as centrifugal flingers to retain oil and keep out dust. The plates may be secured together by spot welding, and the shorter plate 2 may have a burr 6 biting into the sealing material 3. The plates may be secured together and held in place by spinning in plate 1 as at 5, so as to expand the metal on to groove 4 in member 12.
Patent GB-716118-A (GB)
Title: Improvements in steaming ovens
Inventor: PEERS VICTOR FIDDIAN
IPC: A47J27/16
Filed: 1951-03-15
Abstract: 716,118. Liquid-seal devices for relieving pressure. SIMPLEX ELECTRIC CO., Ltd. March 12, 1952 [March 15, 1951], No. 6247/51. Class 135 A pressure relieving device for a steaming oven comprises a seal formed by a column of liquid, e.g. a U-tube 16, and the outlet from the column leads into an expansion chamber 17 provided with outlets 2 which point in a safe direction. When the steam pressure in the oven becomes excessive, the liquid is forced up into the expansion chamber, and the steam can then bubble through and escape to atmosphere through the outlets. A baffle plate 23 prevents the liquid from being ejected directly through the outlet. The chamber 17 would normally be located above the top of the oven.
Patent GB-1213936-A (GB)
Title: Toy
Inventor: VENNOLA JORMA HEIKKI
IPC: A63F9/06
Filed: 1969-02-05
Abstract: 1,213,936. Threading puzzle. AARIKKAKORU. 5 Feb., 1969, No. 6258/69. Heading A6H. A puzzle comprises a body of wood, plastics or metal having a plurality of passages therethrough and a pin attached to a flexible member, e.g. of string, ribbon or chain which may be threaded through the passages in any desired manner, the other end of the flexible member being connected to the body. The passages may be of circular section and arranged so they do not intersect, they may also be curved. The pin made of wood, plastics, metal or rubber is preferably tapered towards its ends and may be curved and/or pliable. The pin may also be formed from the free end of the flexible member which has been stiffened with glue or a plastics material. A blank passage in the body may accommodate the fixed end of the string.
Patent GB-767890-A (GB)
Title: Improvements in or relating to rotating valve
Inventor: MCGAULEY PATRICK JOHN
IPC: F16K25/04
Filed: 1955-03-03
Abstract: 767,890. Valves. CHEMICAL CONSTRUCTION CORPORATION. March 3, 1955, No. 6317/55. Class 135. A valve for controlling the flow of hot abrasive slurries comprises a cylindrical seat member 1 with an inlet passage 2, a cylindrical obturator 3, and a housing 4 with an outlet opening 5; and the obturator can be rotated so as to even out wear on the flat co-operating end faces of the obturator and its seat. The latter members are made of porcelain, and the housing 4 is lined with the same material.
Patent GB-1221994-A (GB)
Title: Permeability separatory apparatus and processes of making and using the same
Inventor: MAHON HENRY ISALY
IPC: B01D53/22
Filed: 1968-02-08
Abstract: 1,221,994. Epoxy resin compositions. DOW CHEMICAL CO. 8 Feb., 1968 [13 Feb., 1967], No. 6330/68. Heading C3B. [Also in Divisions B1-B2] Casting formulations for epoxy resins comprise (1) 14À7 parts diglycidyl ester of bisphenol, 1À1 part dimethylamino propylamine, 6À8 parts soya-1-3-propylene diamine, (2) 10 parts of diglycidyl ether of bisphenol, 2À7 parts of N-(2- phenyl - 2 - hydroxyethyl) - diethylenetriamine, 7À3 parts acetone, (3) 27À3% resorcinol diglycidyl ether, 13À7% 1,4-butanediol diglycidyl ether, 13À7% propylene glycol monoricinoleate, 5À5% chlorophenylene oxide, 37À4% maleic anhydride, 1% N-methyl morpholine, 2À5% colloidal silica. There is also reference to use of the diglycidyl ethers of dihydroxy diphenyl or hydroquinone, and to addition of amine resins as modifiers.
Patent GB-198098-A (GB)
Title: Improvements in or relating to wick burners for railway signal, advertising and other lamps
IPC: F21S13/00
Filed: 1922-03-04
Abstract: 198,098. Hall, W. March 4, 1922. Wick burners, solid flame; oil reservoirs.-A wick burner giving a constantly flickering flame and suitable for use in railway signal, advertising, and other lamps, comprises an externally threaded brass wick tube B carrying a vertically adjustable pear-shaped copper bulb A having its lower portion formed with air inlets C. A vent D is provided for the oil cistern. The. Provisional Specification states that the bulb may be conical.