baber/WOPTO huggingface dataset:
Patent GB-940998-A (GB)
Title: Treatment of cellulosic materials
Inventor: BAIRD WILLIAM
IPC: D06M15/423
Filed: 1961-04-13
Abstract: Beta-ureidoethylpyrdinium chloride is made by reacting ethanolamine with nitro-urea, reacting the resulting beta-hydroxyethylurea with thionyl chloride and quaternizing with pyridine.
Patent GB-131435-A (GB)
Title: An Improved Method of Constructing Reinforced Concrete Boats, and other Stuctures.
Inventor: CUMMINGS ROBERT AUGUSTUS
IPC: B63B9/06
Filed: 1918-08-17
Abstract: 131,435. Cummings, R. A. Aug. 17, 1918. Concrete boats, ships, and vessels.-Reinforced concrete boats, barges, and other structures of thin section and large area are cast in sections upon hinged platforms 7 with the reinforcements projecting from or crossing the edges of the sections. The platforms are afterwards turned up to bring the sections into their permanent positions, and the reinforcements are connected together by hooking or welding, or they may be merely overlapped; moulds are then built up round the joints and filled with concrete to complete the structure. A large curved surface may be divided into small sections each curved but formed as described above for flat sections. Reference has been directed by the Comptroller to Specifications 2409/96, [Class 87, Moulding &c.], 18527/09 and 12893/12, [both in Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], and 115,664.
Patent GB-1136953-A (GB)
Title: Improvements in or relating to photographic emulsions
Inventor: FARREN FRANCIS JOHN
IPC: G03C1/49
Filed: 1966-03-25
Abstract: 1,136,953. Silver halide emulsions. GENERAL ANILINE & FILM CORP. March 25, 1966 [April 1, 1965], No. 13423/66. Heading G2C. Photographic print-out silver halide emulsions are prepared by treating an aqueous solution of a colloidal carrier, an aliphatic hydroxycarboxylic acid or salt thereof and optionally a halide with in sequence, aqueous solutions of (1) a silver salt, (2) a halide other than an iodide, (3) an iodide, (4) a lead salt, and (5) a bromide. Pref. the hydroxycarboxylic acid is citric or tartaric acid, the silver salt is AgNO 3  the halides are alkali-metal salts, the lead salt is Pb(NO 3 ) 2  or lead acetate and the colloid is gelatine, polyvinyl alcohol or pyrrolidone, or hydroxyethyl cellulose. The emulsions may be neutralized with sulphamic acid and stabilized by overcoating with gelatine containing sodium borate, formate or acetate.
Patent GB-1416646-A (GB)
Title: Press provided with a press-plate
IPC: B26F1/40
Filed: 1973-03-20
Abstract: 1416646 Cutting presses V L A BIANCHI 20 March 1973 [30 June 1972] 13427/73 Heading B4B A press for cutting sheet or web material comprises a work table 4 on which the material, and a cutting tool thereon, is placed, a bridge member 15 displaceably mounted so as to be movable between a position in which it is above the table and, a position aside therefrom and a pressure plate 35 supported by a carriage 30 which is movable on the bridge, the plate being also vertically movable in order to apply pressure to the cutting tool. The bridge is movable in slideways 16 formed in beams 7 secured to the press base 2, 3 by columns 5; the movement is effected an hydraulic motor 19 via rack-andpinions 20, 21, The carriage is movable on the bridge via rollers 31, 32. Fig. 2, the movement being effected manually via handles 36a, 36b, Fig. 1; alternatively, such movement may be effected by an hydraulic motor. A doubleacting hydraulic actuator is mounted in the carriage and is controlled by an electromagnetic valve 13b energized via a switch 37b in the handle 36b. The motor 19 is controlled by an electromagnetic valve 13a energized via a switch 37a in the handle 36a.
Patent GB-550604-A (GB)
Title: Improvements in closures for cans or tins and like containers
IPC: B65D55/08
Filed: 1941-10-20
Abstract: 550,604. Cans &c. SCHAFER, J. B., and HOLMES, H. W. Oct. 20, 1941, No. 13445. Addition to 523,497. [Classes 66 and 125 (iii)] The inturned portion of the top of the can, tin, or like container of the parent Specification and the overlying portion of the iid are both formed as plain flat surfaces or one of them is formed as a plain flat surface. As shown they are both formed as plain flat surfaces between which a packing ring or disc is inserted ; the upper portion of the body 1 is formed with two adjacent recessed portions 3, 4, the flange 5 of the lid fitting on the recessed portions 4, having its internal diameter equal to the diameter of the recessed portion 3, and being secured by an adhesive strip 6 wrapped around the flange 5 and recessed portion 3 so that the surfaces of the strip and body 1 are flush with each other.
Patent GB-1536229-A (GB)
Title: Condensation products useful in the production of paper and board
IPC: D21H17/50
Filed: 1976-04-02
Abstract: 1536229 Sulphamate-modified aminoplast resins CASSELLA FARBWERKE MAINKUR AG 2 April 1976 [5 April 1975] 13449/76 Heading C3R [Also in Division D2] A condensation product dilutable in all proportions with water and curable under neutral or alkaline conditions is obtained by reaction of an aminoplast-forming organic nitrogen compound with formaldehyde and one or more water-soluble inorganic sulphamates in the molar ratio 1 : 2À5-7 : 0À1-1À5, at 80-120 C. and pH 7-11 until the viscosity of a 50 wt. per cent aqueous solution is at least 300 DIN seconds and of a 20 wt. per cent aqueous solution is 120-300 DIN seconds (4 mm. DIN flow cup, 20 C.). In Example 1 melamine, 39% formalin and sodium sulphamate are heated in 1 : 3 : 0À6 or 0À3, 1 : 6 : 0À1 or 0À1 or 1:2À5: 1À5 molar ratio at 90 C. and pH 10-11 for 2-4 hours. In Examples 2-4 solutions containing 2À5-10 wt. per cent of the products, alone or with 0À4 times as much polyvinyl alcohol, are applied to paper as sizes. The products may also be incorporated into paper pulp.
Patent GB-167846-A (GB)
Title: Improvements in or relating to electric switches or circuit breakers
IPC: H01H1/54
Filed: 1920-05-17
Abstract: 167,846. Reyrolle & Co., Ltd., A., and Leeson, B. H. May 17, 1920. Switches partly electromagnetic; contacts; magnetic blow-outs.-Relates to electric switches or circuit-breakers having main contacts and auxiliary sparking contacts, the sparking contacts being so disposed that, when the main contacts are first separated, the forces due to the currents in the sparking contacts tend at first to keep them together, but later such forces tend to separate the sparking-contacts and accelerate the speed of opening of the switch. The fixed main brush A co-operates with a movable main contact A<1> mounted on the spindle B. The main contact A is carried by an arm C. to which is pivoted an insulated arm D, carrying a T-shaped sparking contact E, current being led from the main to the sparking contact by a flexible conductor F. Pivoted to the arm D is a rod C, the end of which carries an adjustable abutment G', a coiled spring H surrounding the rod and tending to move the arm D in a clockwise direction. The sparking contact E co-operates with another sparking contact E' rigidly secured to the main contact A<1>. The upper portions of the contacts E, E<1> are curved outwardly to form arcing horns, but in the closed position of the switch, Fig. 1, the downwardly-extending portion E<2> of the contact E is pressed against the lower portion on the horn-shaped tip E<1>, and the currents flowing through the sparking contacts, as indicated, tend to keep the sparking contacts together, thereby assisting the action of the spring H. A magnetic blow-out coil is provided, one pole face J of which is indicated behind one wall of the casing K, which is lined with insulating material, arcing- shields L being also provided. In the circuitbreaking operation, the main contacts A, A<1> first separate, the spring H turning the contact E to the position shown in Fig. 2, in which the limit of motion of the rod G has been reached. During this operation the forces due to the induced currents in the sparking contacts still tend to keep them together. Further separation of the contacts to the position indicated in full lines in Fig. 3 causes a separation of the sparking contacts, and a reversal of the electromagnetic forces upon them, such forces now tending to separate the contacts. The gap between the main contacts has now become large enough to prevent sparking between them, the whole of the arc current passing through the sparking contacts. The reaction between the magnetic field and this current now causes strong repulsive forces between the sparking contacts, tending to accelerate the speed of opening of the switch and to blow the are upwards relatively to the horns, thereby extinguishing it.
Patent GB-442924-A (GB)
Title: Improvements in or relating to hopper feeders for feeding cotton to scutching or picking machines
IPC: D01G23/00
Filed: 1934-08-20
Abstract: 442,924. Hopper feeders for cotton. KERSHAW, J. G., Drummondville, and DOMINION TEXTILE CO., Ltd., 710, Victoria Square, Montreal, both in Quebec, Canada. Aug. 20, 1934, No. 13597/35. Divided out of 442,894. [Class 120 (i)] Means for automatically controlling the feed of cotton to the delivery section of a hopper feeder working in association with a scutching or picking machine comprises a hinged flap 23, Fig. 1, connected with and controlling in known manner the feed lattice 17 and located in the top wall at the intake end of the inclined delivery section 18. The flap 23 is counterbalanced by a weight 36, Fig. 5, and an adjusting element 40, 41, 42 is pivoted independently about the axis 24, the weight-arm 37 being connected by a link 39 to a nut 43 on the adjusting screw 40. Movement of the flap 23 due to pressure of the cotton within the throat of the delivery section 18 operates the mechanism for starting and stopping the feed lattice 17, as described in Specification 442,926. The bottom wall 29 is carried on a triangular frame 30 and is adjustable horizontally, as described in Specification 442,923. Specification 442,894 also is referred to.
Patent GB-387990-A (GB)
Title: Improvements in typewriters and in type-composing machines
IPC: B41J7/90
Filed: 1931-05-08
Abstract: 387,990. Typewriters &c. LUZZATTO, R., 3, Passo Palestro, Genoa, Italy. May 8, 1931, No. 13624. Convention date, Jan. 7. Void [Published under Sect. 91 of the Acts]. [Class 100 (iv).] Type-Lever machines ; k e y - boards ; Letterspacing mechanism. -A typewriter o r " type-composing machine" is arranged to print two or more characters simultaneously, and d the carriage is provided with h differential letter-spacing mechanism. The machine shown in Fig. 1 is provided with duplicate keyboards 1, 2 associated with sets 5, 6 of type-levers having printing points separated by a letterspace. Each key 9, Fig. 2, is carried by a depressible stem which is connected by links 13, 15 to a lever 17 having pin-and-slot connection 29 to a type-lever 27. The platencarriage 38, Fig. 6, is provided at the rear with a rack 41 having at letter-spaced intervals teeth co-operating with a detent 43 which is connected by a link 36 to a universal member 20 operated by each of the links 15. The platen-carriage is provided at the front with spring pins 42 arranged at letter-space intervals and co-operating with two rocking fingers 45, 45‹ which are connected by links 36, 36‹ to two universal members 23 operated through lost-motion slots 22 by the links 15 of the keyboards 1, 2 respectively. When a key in the keyboard 1 or 2 is depressed, the associated type-lever is operated, the detent 43 is engaged with the rack 41, and the finger 45 or 45‹ displaces one of the pins 42. On release of the key, the detent is released, and the platencarriage moves through one letter-space, the movement being limited by engagement of a stationary stop 51 with the pin at the right of the displaced pin. If a key in each keyboard is depressed, both the associated type-levers are operated, and the adjacent pins 42 are displaced so that on release of the keys the platencarriage moves through two letter-spaces. The pins are held in normal or displaced position by spring-catches, and on return of the platencarriage are returned to normal position by a stationary spring 52. The keyboards 1, 2 include space-bars 3, 4 which operate the spacing-mechanism in the same manner as the keys 9. Pedal-operated shift-mechanism may be provided. A machine for printing simultaneously four characters may be provided with four keyboards and four sets of type-members, each keyboard being provided with keys for the most frequently used characters, and the keys for the less frequently used characters being distributed. Specification 373,386 is referred to.
Patent GB-119273-A (GB)
Title: Improvements in Regenerative Gas Furnaces.
Inventor: TOPHAM WILLIAM
IPC: F28D17/00
Filed: 1917-09-22
Abstract: 119,273. Topham, W. Sept. 22, 1917. Reverberatory furnaces.-A reversible regenerative furnace for heating ingots &c. is constructed with gas and air ports 19 and 22, respectively, at cach end arranged at opposite sides of a bridge wall and perpendicular except at their upper ende, where they converge to cause the hot air and gas to commingle in a chamber behind the furnace bridge 25, the said ports, where they converge, being lower than the top of the said bridge. A chamber 21 is arranged at the lower ends of the air ports in which dust &c. may accumulate, stoppered poking- holes being provided in connexion with the ports and the said chamber through which accumulating matter may be removed. An air channel 23 is formed in the bridge wall between the gas and air ports. The regenerators 12 for the air are arranged at each end below the level of the furnace, and each of them is constructed with a depending partition 15 arranged as shown. Gas is delivered through a reversing valve to a chamber 18 at either end, from which the gas ports rise. A separate reversing-valve is provided for the air and the waste gases on their way to the chimney, the waste gases passing out of the furnace only through the ports which serve also for the admission of air.
Patent GB-161459-A (GB)
Title: Improvements in or relating to cleaning apparatus
IPC: A47L13/254
Filed: 1920-05-18
Abstract: 161,459. Hawtayne, W. C. C., and Moon, F. J. T. May 18, 1920. Pivoted handles.-A cleaning appliance comprising a U-shaped reversible head having a scrubbing brush on one side and a mop on the other side has a handle 9 pivoted between the parallel legs 1, 2 of the head, means being provided for retaining the handle vertically, when required, comprising a pair of spring plates 11 attached to the inner faces of the legs 1, 2, each plate having a depression as shown and bearing against the handle or socket therefor.
Patent GB-908383-A (GB)
Title: Improvements in jet propulsion units, more particularly rockets, and in methods of producing hot gases for the propulsion thereof
Inventor: FERAUD ROGER ADRIEN
IPC: F02K9/64
Filed: 1959-04-22
Abstract: A rocket or jet propulsion unit is operated with the aid of a fuel comprising molten lithium, which is injected into the central zone of the combustion chamber and reacted therein with an oxidizing agent, an auxiliary fuel of lower combustion temperature being simultaneously injected into the combustion chamber and reacted with an oxidizing agent so that the central zone of the chamber is separated from the wall of the chamber by a peripheral zone where the lower temperature combustion reaction takes place. The melting point of the lithium may be reduced by alloying it with small quantities of sodium and potassium.  The auxiliary fuel may be kerosene; hydrazine or an aromatic amine such as xylidine. The molten lithium and the auxiliary fuel may be reacted with the same oxidizing agent or different oxidizing agents may be used for the two fuels.  Examples of suitable oxidizing agents are nitric acid and fuming nitric acid.
Patent GB-875238-A (GB)
Title: Improvements relating to bolt anchoring devices
Inventor: TAYLOR CECIL ARTHUR
IPC: F16B13/06
Filed: 1959-04-22
Abstract: 875,238. Bolt-anchors. RAWLPLUG CO. Ltd. April 20, 1960 [April 22, 1959], No. 13756/59. Class 89(1). A bolt-anchoring device comprises a radially-expansible sleeve 2 and externally tapered expansion members 3, 4 therewithin, said members engaging a bolt 5 and internally-tapered parts 18, 21 of the sleeve, whereby they are moved apart axially by turning the bolt to expand the sleeve. The sleeve consists of segments 1 held together by expansible wire clips engaging grooves 8. Member 3 is a solid frustoconical plug abutting the end of the bolt and member 4 is a cylindrical nut engaging the bolt threads and formed with tapered surfaces 13 to co-operate with surfaces 21. Grooves 14 receive necks 10 on the segments so that the nut cannot turn relatively to the segments.
Patent GB-634671-A (GB)
Title: Improvements in steam ejectors
IPC: F04F5/46
Filed: 1947-05-22
Abstract: 634,671. Train brake ejector control. DAVIES & METCALFE, Ltd., and METCALFE, R. D. May 22, 1947, No. 13761. [Class 103 (i)] [Also in Group XXVIII] In a control valve mechanism for a steam ejector operated vacuum brake system for railway engines and vehicles, such systems comprising a small, continuously working ejector to - maintain the vacuum in the vehicle brake cylinders and in the engine brake reservoir, and a large ejector which is brought into operation for the rapid exhaustion of said cylinders and reservoir to effect brake release following a brake application, and wherein the small ejector draws air directly from the reservoir, and through a suitable valve n (termed the inner valve) draws air from the vehicle cylinders, the inner valve n being closed during a brake application, thereby preventing the small ejector drawing from the vehicle cylinders, the inner valve n is opened by the control valve operating handle j when the latter is in the " running " position or the " brake off" position, but is allowed to close by its own weight assisted by the pressure difference above it when the handle is in the " brake on " position. As shown, the valve n is maintained open by a lever k operated by a cam h on a spindle i of the handle j when the latter is in the " running " and " off " positions II, III to allow the small ejector to draw air from a space e and a valve fitting c leading to the brake reservoir; the large ejector when operating exhausts the space e and the train pipe. On moving the handle to the " on " position I, valve n closes and an air valve g is opened by the cam h to allow access of air to the space e and the evacuated brake. cylinders; d is a vacuum relief valve and p is the steam connection to the ejectors.
Patent GB-138150-A (GB)
Abstract: 138,150. Field, M. B. Jan. 14, 1919. Indicating.-The moving element V of a measuring-instrument, for example an electrostatic voltmeter, is enclosed in an airtight casing A, in which a high air or gas pressure may be maintained, and carries one member 1 of magnetic clutch, the other member 2 of which is carried by the spindle of a pointer 3 outside the casing. Each of the moving members of the magnetic clutch is arranged astatically, for example by arranging two magnetic needles 1, 2 parallel to one another and to the axis about which they turn.
Patent GB-717877-A (GB)
Title: Improvements in apparatuses for making elements out of reinforced concrete
IPC: B64C3/24
Filed: 1952-05-30
Abstract: 717,877. Prestressed concrete. BREGUET, L. May 30, 1952 [July 6, 1951], No. 13835/52. Class 20 (4) In the manufacture of an aircraft structural element, e.g., a wing, of pre-stressed concrete, the reinforcing wires 1 are assemb'ed on a frame having cross-members 2, 3, 4 and side members 6, the frame being then placed in the mould 13 so that the cross members 2, 3 abut on opposite ends of 'the mould, the side members 6 are removed, the wires are tensioned by separating the crossmembers 3, 4, and the concrete is poured into the mould. The side members 6 may be ballended to engage 'sockets in the cross-member 3, the upper ends of the members being releasably secured by thumbscrews 9 on studs which pass through slots 7 in the cross-member 2. The wires are looped over pins 2a on the member 2 and pass through slots in the :member 3 and holes in the 'member 4 being locked in the latter by conventional cones 17. The tension is applied by jacks 14 and parallelism between the members 3, 4 during tensioning is assured by telescopic guides 5 and by linkage 18, 19, 20, Fig. 10, connecting the members. Alternatively the link 20 is omitted, the links 19 being each provided with a toothed quadrant which mesh with one another. The wires may have any desired section, e.g., circular, square, triangular or H-shape and additional reinforcement in the form of a net or expanded metal 12 may be provided. When the article is to be removed from the mould, the wires are cut between the members 3, 4, the member 2 preferably being allowed to remain on the article. The end of the wing having the cut-off wires is cut off, e.g. with a rotary carborundum disc, thus producing a square clean surface to which wing- tip fuel tanks &c. may be attached.
Patent GB-119278-A (GB)
Title: Improvements in Gas Burners.
Inventor: ESTERLY AUGUSTUS HOFFMAN
IPC: F23D99/00
Filed: 1917-09-26
Abstract: 119,278. Esterly, A. H. Sept. 26, 1917. Atmospheric gas burners.- A burner, more particularly for dental purposes, has separate divergently-directed burner mouths whose respective outlet orifices are free and of relatively different sizes. In one form, the two curved burner mouths 7, 9 are connected to a tube 6, which telescopically engages the mixing-tube 5 of the burner.
Patent GB-192657-A (GB)
Title: An emergency brake and locking device for motor vehicles
IPC: B60T7/10
Filed: 1922-05-17
Abstract: 192,657. Walters, M. May 17, 1922. Brakes, arrangement and disposition of. - A cone C, slidably-keyed on the propeller shaft G, is operated by a hand-lever O through rods I, so that (1) it can be brought into engagement with an internally-coned bracket B<2> to act as a brake on the shaft, or (2) clutch teeth D on the cone engage similar teeth in a fixed bracket B<1> to lock the shaft positively against rotation.
Patent GB-1360185-A (GB)
Title: Face type o-ring seal groove and method of producing same
IPC: F16J15/06
Filed: 1973-03-22
Abstract: 1360185 Joint making packing WEATHERHEAD CO 22 March 1973 [26 April 1972] 13878/73 Heading F2B [Also in Division B3] An annular groove in one of two juxtaposed planar surfaces has at least part of at least one side wall deformed to make an acute angle with the base of the groove so as to retain an 0-ring in the groove. Members 10, 11 having aligned bores and guide tubes 16 have grooves 19 surrounding the bores. Walls 21 of the grooves are flared outwards of the bores by tools 24 having frustoconical coining portions 26. In other arrangements, the tool has an annular, triangular section ridge projecting from a flat surface, the ridge forming a groove surrounding or within the main groove and at the same time deforming the wall between the grooves into the main groove, Figs. 4-7 (not shown). Alternatively the second groove may be cut before the wall is deformed, Figs. 8, 9 (not shown). In another method, portions of the groove wall may be simply indented by centre-punching as at 73, Fig. 11.
Patent GB-1222433-A (GB)
Title: Hydropneumatic suspension for road vehicles
IPC: B60G/
Filed: 1968-03-22
Abstract: 1,222,433. Vehicle suspension. INDUSTRIAL DEVELOPMENT CO. ETABS. 22 March, 1968 [29 March, 1967], No. 13904/68. Heading B7H. A road vehicle suspension comprises a swing- ing arm 1 upon which a wheel 4 is mounted and upon which is pivoted a lever 7 to the ends of which are pivotally connected, at 8 and 9, connecting rods 10 and 24 of pistons 11 and 23. Piston 11 works in a cylinder 12 connected to a reservoir 13 divided by a flexible diaphragm 14 into a gas chamber 15 and an oil chamber 16. The latter is connected by a pipe 17 to a similar arrangement associated with the cylinder 22 in which works the piston 23 whose downward movement is limited by a member 25. At light loads, the initial pressure of the gas (nitrogen) in the chamber 21 is greater than that in the chamber 15 and holds the piston 23 against the stop 25, until a threshold pressure is reached, when the two units act in combination.