baber/WOPTO huggingface dataset:
Patent GB-617482-A (GB)
Title: Manufacture of condensation products
Filed: 1946-10-03
Abstract: Condensation products are prepared by reacting, with the aid of zinc in an inert solvent, a propinyl halide or homologene with an a -, b -unsaturated ketone, and hydrolysing the zinc compound formed.  Zinc powder activated by heating with iodine may be used in ether or a mixture of ether and benzene at about 40 DEG  C. Anti-oxidants, and traces of copper ethyl acetoacetate may be added.  The zinc compounds formed are hydrolysed with water, acid or ammonium salt solution and the products purified by distillation.  Separation of unreacted ketone may be effected by treating the crude product with ketone reagents such as sodium bisulphite, semi-carbazide or chloride of trimethylammonium acetic acid hydrazide.  Propinyl bromide with methyl vinyl ketone yields p  3-hydroxy-3-methyl-hexene-(1)-yne-(5), and, with b -ionone, 1-(21,61,61-trimethyl-cyclo hexene - (11) - yl) - 3 - hydroxy - 3 - methyl - hexene-(1)-yne-(5).
Patent GB-752746-A (GB)
Title: Improvements in or relating to multi-layer paper strips for manifolding purposes
IPC: B41L1/32
Filed: 1954-10-13
Abstract: 752,746. Manifolding webs. BURGMER,. J. Oct 13, 1954 [Oct. 17, 1953], No. 29524/54. Class 16 A multi-layer paper strip for manifolding comprising sheets of interleaved writing: and carbon paper which are detachably connected together by superimposed paper webs extending over the entire length of the strip, has one of the two paper webs, wider than the separate sheets and with a transversely extending incision extending almost to its longitudinal edges to allow for the relative displacement of the two webs when passing round a platen. As shown in Figs. 1, 1a, 1b and 4, sheets 11 are secured between continuous webs 1, 2 as by staples 10 at the head of each form or by staples at the sides of the sheets. The web 1 and also the web 2 if desired is provided with projecting margins 3, 4 formed with registering perforations 5, Fig. 1a or incisions 5a, Fig. 1b, the margins being separable along lines 7 of incisions 6. The web 2 is formed with a line of perforations 8 between each set of forms or sheets 11 and the web 1 with a slit 9, Fig. 1 or a slot 9a, Fig. 1a extending between the margins 3, 4. As shown in Fig. 5, the wider web 1 is replaced by a plurality of separate leaves 12 secured at both sides to narrow continuous paper strips 14, as by gumming, the strips 14 having registering' perforations and the leaves 12 being separated by a distance 13 to form a slot. Specification 724,823 is referred to. ,
Patent GB-1497622-A (GB)
Title: Variable speed planetary transmission
IPC: F16H3/66
Filed: 1976-07-15
Abstract: 1497622 Change-speed gear CATERPILLAR TRACTOR CO 15 July 1976 [10 Dec 1975] 29553/76 Heading F2D A planetary transmission comprises first and second trains 16, 18 with a ring gear 16R driven from an input shaft 64 through gearing 58, 70 and a torque converter 60 with lock-up clutch 65, suns 16S, 18S constrained to rotate together and controlled by a brake 24, a planet carrier 20 common to both trains and connected to a driven shaft 32, a clutch 28 between the carrier and ring gear 16R, and a ring gear 18R controlled by a brake 26. The. train 16 has single planets 16P between its sum and ring gear and the train 18 has intermediate planets 18X, 18P, the arrangement providing a low ratio with split torque between the two trains when the brake 26 is applied, a higher ratio through the train 16 when the brake 24 is applied, and direct drive on engagement of the clutch 28. The figure shows the transmission combined with a further three-range planetary unit 30 and a planetary reversing unit 50, the final output shaft 48 being connected to a carrier 46 of the unit 30 and to the carrier 56 of the reversing unit. Application of a brake 44 establishes low range through a train 36, application of a brake 38 establishes a middle range through trains 34, 36, and engagement of a lock-up clutch 40 gives direct drive. The Specification describes a sequence of operation of the brakes 24, 26, 38, 44 and clutches 28, 40 to provide seven forward ratios, and indicates that appropriate proportioning of the elements of the planetary trains 16, 18, 34, 36 enables a substantially uniform step ratio between adjacent forward ratios to be obtained. Reverse is established by engagement of the clutch 28 and a brake 54. A constructional form of the transmission is described.
Patent GB-1120077-A (GB)
Title: Nitration of aromatic hydrocarbons
IPC: C07C201/08
Filed: 1967-06-27
Abstract: In a normally continuous process for nitrating aromatic hydrocarbons in a series of reactors terminated by a separator, when it is necessary to temporarily stop the influx of reactants and the efflux of final product, the separated waste acid is recycled until the secondary nitration reaction is completed, whereupon the continuous process is resumed.  The process may be applied to the production of nitrobenzene, nitrotoluene, dinitrotoluene, trinitrotoluene or nitrochlorobenzene.
Patent GB-690479-A (GB)
Title: Improvements in or relating to internal combustion engines having two pistons acted upon by the same impulse
IPC: F02B75/28
Filed: 1948-11-15
Abstract: 690,479. Motor power plant. HAMMICK, F. C. Nov. 15, 1948 [Dec. 19, 1947; April 1, 1948], Nos. 29679/48 and 29680/48. Class 110(iii) [Also in Group XXVII] A power plant includes an internal combustion engine having two operatively-connected reciprocating pistons, one operating on a four-stroke cycle, and the other on a two-stroke cycle, the pistons having a common working chamber and being arranged jointly to sweep a greater volume in the working stroke than in the induction stroke, and an exhaust-driven turbine operatively-connected to the pistons. In Fig. 11, the engine comprises four-stroke pistons 19, 20 connected to the crankshaft 16 and opposed two-stroke pistons 22, 23 driving shafts 24, 25, connected by chain and sprocket gearing to the crankshaft 16 on which is fixed an exhaust-driven turbine 154. The edges 155 of the blades may be turned so that they assist scavenging effect towards the end of the exhaust stroke. In Fig. 16 the fourstroke pistons 244. 246 are connected to a crankshaft 227 and the two-stroke pistons to a half-speed shaft 226, the two shafts being geared together through a shaft 232 on which is mounted a twostage exhaust-driven turbine 234.
Patent GB-152684-A (GB)
Title: Improvements in or relating to machines for the manufacture of helicoidal springs
IPC: B21F3/04
Filed: 1920-10-20
Abstract: 152,684. Pichault, S. Oct. 22, 1910, [Convention date]. Springs.-In a machine for coiling springs of unlimited length, the wire is coiled on a short plain mandrel and then passed between a pair of helically toothed disks, which regulate the pitch and carry the coils forward without rotating round their axis, so that the spring may be wound on a drum. The wire is carried by a spool 10 mounted on an axle 8 on a spur wheel 5 keyed to the shaft 4 which is driven by gearing or by a pulley 5a. Blocks 13, 14 hinged to levers pivoted to the wheel 5 at 13a and 14a and connected at their other ends by a rod 15 provided with Belleville washers or springs 15a and an adjusting nut 16 serve to tension the wire. The wire is coiled on a plain mandrel 29 passing through the shaft 4, either secured thereto or held stationary, and having a conical part 29a serving to lead the wire to the same position in spite of varying positions on the spool. A number of turns of wire from the spool are first coiled by hand on a threaded rod of required diameter and pitch and are then removed and placed in the teeth of a pair of helically toothed disks 26, 26a which are mounted on shafts 28, 23 connected by spur gear, the shaft 23 being driven from the wheel 5 by spur and worm gear through a shaft 18. The disk 26<a> is removable so that the wire may be inserted. Coiling then proceeds and the finished coils pass along a groove and are wound on a rotating drum. Lubricant may be automatically supplied to the wire, preferably while between the disks, and may serve to protect the spring from rust when in store. Wires of large section may be heated by a gas blow-pipe or electric current before coiling, and in the case of wires made from steel which requires re-tempering, are passed after coiling through a tempering- bath.
Patent GB-351357-A (GB)
Title: Improvements in apparatus for gauging or comparing the diameters of covered rollers used in the textile trades
IPC: G01B5/08
Filed: 1930-10-04
Abstract: 351,357. Linear-dimension gauges. DRONSFIELD, J., Atlas Works, Oldham, Lancashire. Oct. 4, 1930, No. 29720. [Class 106 (ii).] For gauging or comparing the diameter of rollers used in the textile trades, the usual apparatus employing a bar movable parallel to itself to and from the rollers combined with a dial gauge operable from the bar. A base part a provided with a groove to receive a roller r is fitted at the ends with two standards a<1> to the upper end of which are pivoted weighted arms a4 pivotally carrying a bar a<2>. One standard has secured to it a bracket 1 carrying a dial gauge 20 the spring plunger 8 of which is adapted to engage the upper edge of the bar a<2>. The plunger is formed as a rack which through multiplying toothed gears is adapted to rotate a graduated dial relative to a pointer 21. In use a roller is placed on the base and the bar brought down, the plunger 8 following. The pointer 21 is then set to zero or a suitable graduation on the scale by unclamping from its spindle and reclamping. Another roller is then substituted and the departure noted the larger and smaller rollers being paired. The device may also be used to test the parallelism of the rollers.
Patent GB-1036666-A (GB)
Title: Improvements in means for indicating predetermined speeds of motor road vehicles
IPC: G01P1/10
Filed: 1964-07-24
Abstract: 1,036,666. Speed-responsive switches. J. W. EAGER. May 28, 1965 [July 24, 1964], No. 29726/64. Addition to 999,379. Heading H2B. [Also in Division G1] The switch-actuating cams and the switches controlling the warning lights of the parent Specification are offset transversely to the spindle of the centrifugal device and take the form of three cam strips 6 adjustably fixed on the plate 5 to engage rollers, depending from leaf springs 8, in succession as the speed increases in order to actuate micro-switches 7 mounted on a boss 7a integral with the housing. Lamps 18, 19, 20, Fig. 3 (not shown), in circuitry including the micro-switches 7 are arranged to be illuminated all together when, say, 50 m.p.h. is exceeded, 18 and 19, say between 40 and 50 m.p.h. and 18 alone between 30 and 40 m.p.h. The micro-switches may comprise a contact carried by a flexible blade or may be of miniature press-button type, Figs. 1, 4, 5 (not shown).
Patent GB-1024418-A (GB)
Title: Polyamide coated glass fibres
Inventor: WONG ROBERT
IPC: C03C25/32
Filed: 1964-07-27
Abstract: The polyamide reaction product of a dicarboxylic acid halide reactant and a polyamine reactant is formed in situ on glass fibre surfaces to impart thereto lubricity by attenuating fibres from a body of heat softened glass at a rate in excess of 4000 feet per minute and during the attenuating applying one of the reactants to the surfaces, immediately superimposing the other of the reactants on the first reactant and immediately reacting the dicarboxylic acid halide and polyamine to yield 1 - 25% by weight of the polyamide on the fibres, the reactants being in the form of liquids and/or solutions. Suitable dicarboxylic acid halides are those of adipic, malonic, succinic, glutaric, pimelic, suberic, azelaic, sebacic, phthalic, isophthalic, terephthalic and naphthalic acids.  The polyamine may be hexamethylene diamine, 2-methyl hexamethylene diamine, 3-methyl hexamethylene diamine, ethylene diamine, diethylene triamine or triethylene tetramine. The reactants may be applied from a non solvent or single solvent system or by use of immiscible solvents, suitable solvents for the dicarboxylic acid halide being carbon tetrachloride, chloroform, trichloroethylene, ethylene dichloride, ethylene chlorobromide, benzene, xylene, toluene, chlorobenzene, nitrobenzene, cyclohexane, heptane, isooctane, ketones, ethers and esters and suitable solvents for the polyamines being water, acetone, methyl ethyl ketone, methyl isobutyl ketone, ethyl ether, alcohols and glycols.  The polyamide coatings may be employed in combination with conventional size composition additives, e.g. coupling agents, additional film-forming materials, plasticisers, emulsifiers, lubricants, pigments and fillers.
Patent GB-488278-A (GB)
Title: Improvements in and relating to the sand facing of bricks, building blocks and the like
IPC: B28B11/06
Filed: 1936-11-03
Abstract: 488,278. Sand-blast. LONDON BRICK CO., Ltd., RACTLIFFE, G. H. C., and ROWE, C. W. D. Nov. 3, 1936, No. 29932. [Class 60] [Also in Group V] Bricks, slabs, or the like are sand-faced by sand-blast nozzles 31, 31a continuously reciprocated in planes parallel to the surfaces treated, the nozzles being maintained at right-angles to the surfaces so that the jets strike the surfaces substantially at rightangles. The nozzles are adjustably mounted on plates 32, Fig. 5, fixed by rings 40 to pairs of rods 39, 39a which are adapted to be reciprocated in the sand-blasting chamber 3. The rods are joined by cross-heads 42, 42a reciprocated from eccentric discs 55 operated from an electric motor 44. The bricks are fed on a conveyer 4, Fig. 1, and sand is supplied from a bin 73 to a distributer 74 from which pipes 75 feed to funnels 77, Fig. 5. The top surfaces of the bricks are sanded by two vertical nozzles 31 and the sides by horizontal nozzles 31a. The nozzles 31 have funnels 78 which reciprocate with the nozzles but are adapted always to receive sand from two of the funnels 77. The nozzles 31a, reciprocated on the rods 39a are fed by funnels 82 arranged beneath short pipes 81 connected by flexible tubes 80 with the other funnels 77. Dust may be removed from the chamber 3 by a suction conduit 110 to a container 107 leading to a dust collecter, suction being set up by an exhaust fan in a conduit 111. Inspection windows 30, Fig. 5, and doors may be provided in the. chamber 3. The return lap of the conveyer passes through a tunnel 27 having sloping sides adapted to deflect sand into a hopper 24 with an outlet 28. The sand-blast nozzles, Fig. 8, comprise a chamber 87 connected by a conduit 89 with the funnel 78 or 82. At one end a nozzle 92 is secured by a gland 96 and within the chamber 87 is mounted a cone-shaped nozzle 99 connected to an airpipe 105. The nozzles may operate by induction instead of pressure. The jets may be of circular, oval or oblong cross-section.
Patent GB-488489-A (GB)
Title: Improvements in or relating to hydraulic power apparatus
IPC: F15B11/16
Filed: 1936-11-03
Abstract: 488,489. Hydraulic transmission of power. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., TARRIS, F. J., and WEBB, D. Nov. 3, 1936, Nos. 29947/36 and 19140/37. [Class 69 (ii)] Hydraulic apparatus for operating brakes, guns, &c. in aircraft comprises a first closed circuit including the operated device and a valve 27 controlling its operation, and a second closed circuit including a valve 79 and a chamber 109, Fig. 7, having a restricted outlet 210, whereby a pressure head is built up in the chamber when valve 79 is open and actuates the valve 27. The exhaust from the chamber passes to the return pipe 41 from valve 27. The control valve 79 may be arranged in the return from chamber 210 in which case it is normally open and itself provides an adjustable restricted outlet from the chamber. Valve 79 is of push-button type and is arranged in a pilot's hand grip with a second control valve 23 which when open actuates two valves 33 in a common casing controlling pressure supply to brakes 33, 34. The pressure supply to valves 33 is also controlled by a slide valve 122 having chamfered ends connected to the rudder bar 40. Pressure passes from valve 122 to chambers beneath piston valves, said chambers having restricted outlet passages 141 communicating with the exhaust pipe 42. Control valve 23 is of piston type with a tapered control surface whereby the outlet pressure can be adjusted. When two devices, e.g. a machine gun and a Constantinesco timing mechanism are required to operate in quick succession, the valve 27 is duplicated and the second valve more heavily spring-loaded than the first. Specification 488,546 is referred to.
Patent GB-651338-A (GB)
Title: Improvements in and relating to thermosetting moulding and laminating compositions
IPC: C08L61/20
Filed: 1947-11-11
Abstract: A condensation product of an aldehyde and urea, thiourea, a guanamine, cyanamide, dicyandiamide, or an aminotriazine such as melamine is plasticized with a compatible crystalline linear polyamide.  Suitable polyamides are soluble in alcohol or aqueous alcohol and either soften below 155 DEG  C. or are used with a compatible plasticizer which brings the softening point below 155 DEG C.  Melamine-formaldehyde resins having 1.5 to 4 mols. of formaldehyde per mol. of melamine and being plastic between 90 DEG and 145 DEG  C. are particularly suitable for use according to the invention In examples: (1) a melamine formaldehyde resin was mixed at 135 DEG  C. with zinc stearate and a mixture of o-cresyl glycerine ether with a polyamide from piperazine, sebacic acid and e -caprolactam.  The cooled product was granulated to form a moulding powder; (2) polyamides from hexamethylene diamine adipate, hexamethylene diamine sebacate and e -caprolactam are described and used as plasticizers.  Polyamides known as JM-6377, "Nylon" FM-101, and "Nylon" FM-100 are also mentioned and other examples describe their use as plasticizers of melamine formaldehyde resins either with zinc stearate for moulding or in solvents, e.g. alcohol, to form laminating solutions.  The benzyl ether of ethylene glycol, benzamide, acrylamide, toluene sulphonamides, and glyceryl ethers described in Specifications 567,705 and 581,702 are substances which may be used as plasticizers with the polyamide.  In one example the plasticizer used constitutes a major proportion of the composition. Example 8 describes plasticization with an aqueous alcoholic solution of polyamide of a solution prepared from urea, formaldehyde and triethanolamine.  The mixed solutions are compounded with a -cellulose, dried and the product ground and mixed with p  lubricant and curing agent to form a moulding powder.  Other fillers mentioned are chopped cotton string, chopped fabric, wood flour and asbestos.
Patent GB-742695-A (GB)
Title: Carbon contact bow for electrically driven vehicles
IPC: B60L5/20
Filed: 1953-10-30
Abstract: 742,695. Current collectors for electric vehicles. CONRADTY, E. K., CONRADTY, P., CONRADTY, M. and CONRADTY, C. Oct. 30, 1953 [Nov. 14, 1952], No. 30056/53. Class 104 (3). A carbon sliding bow comprises two light metal end-pieces 2, 2a, partially longitudinally slit at 3 to enable the pieces 2, 2a to be clamped to the ends of a carbon bar 1 and to a sheet-metal member 4 interconnecting the pieces 2, 2a and provided with a stiffening rib 5 the member 4 embracing the carbon bar 1 with a clamp fit and with the rib 5 bearing against the base of the carbon bar 1 to prevent downward or sideways sagging or bending. The rib 5 of T, triangular or similar shape may engage a correspondingly shaped groove 7 in the carbon bar 1. The member 4 is clamped to the pieces 2, 2a by screws 8 and. to the bar 1 by screws 8a.
Patent GB-753116-A (GB)
Title: Arrangement for supporting the shoes in internal shoe-drum brakes
IPC: F16D51/22
Filed: 1952-07-16
Abstract: 753,116. Internal shoe-drum brakes. KOTZ, F., [trading as BERGISCHE ACHSENFABRIK F. KOTZ & SOHNE]. July 16, 1952 [Dec. 6, 1951], No. 30113/54. Divided out of 753,012. Class 103 (1). In an internal shoe-drum brake, exaggerated or uncontrollable forces, which would normally be transferred from the trailing shoe 2 to the leading shoe 1, are prevented from being so transferred by means of an abutment member 16, having two supporting faces 17, 18, which is attached, by welding or the like, at right angles to the brake back-plate 10 (Fig. 2 being a section on C, D of Fig. 1); the plane of each face forming an angle α with the vertical axis through the brake. The front faces of the ribs 3, 4 of the brake shoes 1, 2 respectively are also correspondingly oblique and indicated by 20 and 19. When the brake is applied by means of the expanding arrangement 11 acting on the free ends 31, 4<SP>1</SP> of the ribs 3, 4, the shoes are spread against the action of the return springs 12, 13, 14, 15 and expanded against the brake drum (not shown) which rotates in the direction of the arrow 21. The brake drum tends to move the brake shoes in the rotative direction which movement is prevented by roller 5 being engaged with the abutment 8 of the adjustment device 7. When the transformation forces are too great, the abutment member 16 is effective and the front face 19 bears against the supporting face 17 so that uncontrollable forces are prevented from being transferred from the trailing shoe 2 to the leading shoe 1. The effective angle of the abutments 8 and 9 may also be at an angle α so that the brake shoes will be arranged centrally within the drum.
Patent GB-266468-A (GB)
Title: Process for the production of photographic plates, films and the like for indirect three-colour photography
IPC: G03C7/20
Filed: 1925-11-28
Abstract: 266,468. Lage, E. A. Nov. 28, 1925. Plates and films with mutiple colour-sensitive layers; colour photography.-Sensitive plates &c. carrying three emulsion layers, sensitized for different colours, which are simultaneously exposed but are separated for development &c., are produced by squeegeeing face downwards upon a support carrying a blue-sensitive layer a film carrying a red-sensitive layer, and then coating upon the film a yellow-sensitive emulsion layer. After exposure, the film with the red and yellow sensitive layers on opposite sides is stripped from the support carrying the blue-sensitive layer and the separated parts are developed &c. After drying, either or both of the negatives on the film may be stripped off for printing; or, alternatively, each image on the film may be bleached in turn (and afterwards redeveloped) to enable the other to be printed.
Patent GB-911802-A (GB)
Title: Improvements in and relating to lifting systems for the image cylinders of rotary photogravure printing machines
IPC: B41F13/32
Filed: 1960-09-01
Abstract: 911,802. Cylinder - lifting arrangement. MEYER, H. E., [trading as MASCHINENFABRIK M. KROENERT KOMM. GES.]. Sept. 1, 1960 [July 1, 1960], No. 30116/60. Class 100 (2). A lifting system for lifting the image cylinder of a rotary photogravure printing machine of the type wherein an adjustably mounted image cylinder is underneath a fixedly mounted impression cylinder, towards the impression cylinder is characterized in that the system lifting the image cylinder, journalled in rocker arms, operates against a counter-force which increases as the image cylinder moves from its rest position to its working position. In the described embodiment the contact pressure between the image and impression cylinders 4, 5 is controlled by mechanism disposed at each side of the machine and comprising a pneumatically-operated pistonrod 9 which is used to swing the cylinder 4 upwards against the cylinder 5 against the increasing counter-force exerted by a spring 14. The springs 14, which are adjustable, are extended as the lifting system moves from the lower, inoperative position, to the upper or working position, and consume a part of the power produced by pneumatic cylinders 8 such that high-velocity impact between the cylinders 4 and 5 is avoided. Instead of spring means the counter-force may be created by an additional piston cylinder arrangement. Counter-force control may also derive from the actuation in a desired manner of a throttle valve in the feeding line or lines of the cylinder 8.