baber/WOPTO huggingface dataset:
Patent GB-937983-A (GB)
Title: Improvements in marking apparatus
IPC: B41F17/10
Filed: 1962-04-02
Abstract: 937,983. Marking cables. ANACONDA WIRE & CABLE CO. April 2, 1962 [Aug. 4 1961], No. 12586/62. Classes 100 (2) and 100 (4). A cable 39 is fed continuously past a marking station comprising a continuously rotated typecarrying member 37, and a strip of blocking foil 13 is fed continuously between the member 37 and the cable 39 in a direction normal to the direction of travel of the cable, type 38 on the member 37 being heated by an annular electric heater 59 and making an impression on the cable through the foil 13. The member 37 is driven at a peripheral speed equal to the linear speed of the cable by means of a belt 31 and pulley 30 which are connected to the drive means (not shown) for the cable. The drive to the member 37 passes through an angle gear box 26 from which the drive is taken for the foil 13. The foil 13 is fed from a supply spool 12, between feed rollers 14, 17, beneath the member 37, round a guide roller 15 and a further roller 40, between a second pair of feed rollers 50, 51 and thence into a waste bin 52. The roller 50 is driven, through a slipping clutch, at a slightly higher speed than the roller 14 so as to keep the portion of foil 13 between them under tension. The roller 40 is carried by a yoke 41 pivoted at 42 and biased downwards by a spring 46. When the foil 13 is gripped between the type 38 and the cable 39 its longitudinal movement is arrested momentarily; as the feed rollers continue to be driven a certain amount of slack builds up to the left of the marking station, Fig. 2, and the roller 40 is raised against the bias of the spring 46 owing to the action of the feed rollers 50, 51. During the making of the impression the blocking foil is carried along with the type 38 and cable 39 in a direction normal to its original direction of travel until the type rises out of contact therewith. When this happens the foil, being under tension, springs back into position ready for a further impression, and has advanced longitudinally by an amount slightly larger than the height of the marked indicia by the time the next set of type is in position for making an impression, this arrangement ensuring maximum wear of the foil. The positions of the pairs of feed rollers 14, 17 and 50, 51 are adjustable in the horizontal direction towards and away from the marking station so as to allow regulation of the tension of the foil 13. The cable 39 is supported as it passes beneath the member 37 by a number of grooved rollers 71 carried by a holder 70 which is vertically movable for impression adjustments and is spring- urged upwards. A stop-roller 84 engages the upper side of the cable 39 and prevents the cable from being raised too much by the upward pressure from the rollers 71.
Patent GB-593508-A (GB)
Title: Improvements in and relating to coilers for extrusion presses
IPC: B21C37/04
Filed: 1945-05-18
Abstract: 593,508. Extruding. LOEWY ENGINEERING CO., Ltd., and HAFFNER, E. May 18, 1945, No. 12613. [Class 83 (iv)] An extrusion press includes a coiler having a drive whose motive power is controlled or transmitted from the press ram or from the pressure fluid operating the ram, in such manner that the speed of the coiler is kept proportional to that of the ram. As shown in Fig. 1, a billet B is extruded by a ram 3 and the extruded material 5 is wound on a coiler 6 driven from a rack 10 on the press cross-head 7 through gearing 11, 13 and 17. The drive includes a change speed gear 15 so that the speed of the coiler relatively to that of the ram can be adjusted for various die apertures. In a modification the cross-head carries another ram which operates in a hydraulic cylinder, the liquid forced out serving to drive a hydraulic motor geared to the coiler. Alternatively the liquid operates the sliding contact of a rheostat controlling the speed of an electric motor which drives the coiler. In another form, the rack 10 drives through gearing an alternating current generator, the current from which drives a synchronous motor geared to the coiler. In a further form, Fig. 5, a, cord 50 secured to the cross-head 7 passes round a pulley 52 and carries a weight 51. Movement of the ram thus causes a rotation of the pulley which is in turn connected to a rotating arm 53 of a speed indicating device. This arm is connected through a servomotor 55 to a variable speed gearbox 56 interposed. in the drive between a motor 57 and the coiler 6. A further modification utilises the rate of flow of fluid into the main cylinder of the press to control a piston coupled to the sliding contact of a rheostat in the circuit of the motor driving the coiler.
Patent GB-977061-A (GB)
Title: Vehicles for travelling over land and/or water
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1960-04-08
Abstract: 977,061. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. April 7, 1961 [April 8, 1960; Oct. 18, 1960], Nos. 12688/60 and 35626/60. Heading B7K. [Also in Division F1] A vehicle is supported by one or more gaseous cushions contained at least partly by fluid curtains formed by rotary pumps 1 extending around the periphery of the vehicle, except at the corners of a vehicle of rectangular plan form; the curtain issues from port 3 and is recovered via port 4, the pumps being driven by engines 7. Initially, the pumps draw air from intakes 8 along the sides of the vehicle and then flaps control the amount of air drawn through intakes 8. The cushion can be sub-divided by curtains from ports 11, Fig. 1, supplied from compressor 12. In Fig. 4 (not shown), the vehicle has side-walls always immersed in water, and has air curtains at the front and rear; and in Fig. 6 (not shown), the side-walls are normally clear of the water and air curtains are formed beneath the side-walls. Various forms of pumps are given in Figs. 7-16, 18-22 (not shown, Division F1), and in Fig. 17, two pumps 100, 101 produce two curtains 103, 105. With the pump of Fig. 22 there is no recirculation of air.
Patent GB-334612-A (GB)
Title: Improvements in or relating to printing-cylinders for checkendorsing machines
IPC: B41K3/12
Filed: 1929-06-07
Abstract: 334,612. International Check Endorser Co. June 11, 1928, [Convention date]. Divided on 313,441. Drawings to Specification. Printing-surfaces.-A hollow printing-cylinder for a cheque-endorsing machine comprises two semicylindrical shells assembled by cylindrical heads each of which has a cylindrical flange embracing the end edges of the shells to hold them together. Type-wheels arranged inside the cylinder so that their peripheries are substantially tangential to the periphery of the cylinder print in conjunction with constant matter preferably carried by an arcuate type-plate hinged to one of the shells. The cylinder and associated mechanism described form part of the complete machine described in Specification 313,441.
Patent GB-1082893-A (GB)
Title: Nestable double-walled containers
Inventor: EDWARDS BRYANT
IPC: B65D1/26
Filed: 1965-06-22
Abstract: 1,082,893. Drinking vessels. ILLINOIS TOOL WORKS Inc. June 22, 1965 [June 23, 1964], No. 12714/67. Divided out of 1,082,692. Heading A4A. [Also in Division F4] The subject matter disclosed is the same as that of Specification 1,082,692, but the claims specifically relate to the features of constructoin of the containers which permit of their telescopic stacking.
Patent GB-875056-A (GB)
Title: The manufacture of grignard reagents
IPC: C07F3/02
Filed: 1960-04-11
Abstract: <p/1> Grignard reagents may be prepared by reacting an organic halide with coarse bulky magnesium, i.e. pieces of volume at least 50 ml. and preferably weighing between about 1 and 20 kg., in a liquid solvent which is an ether or cyclic ether e.g. diethyl ether, diisopropyl ether, tetrahydrofuran or tetrahydrofuran-benzene mixture.  The process may be carried out in the apparatus shown, operating under a nitrogen atmosphere.  10 kg. blocks of magnesium are loaded into reactor 7.  A mixture of ethyl bromide and dry ethyl ether is heated in the pot 1, the vapours condensed in condenser 3, and the hot liquid allowed to flow through line 4 and valve 5 into the reactor 7, where it trickles over the magnesium blocks and reaction takes place.  The liquid mixture comprising solvent, unreacted halide and Grignard reagent flows from the bottom of reactor 7 into pot 1.  Solvent and organic halide is distilled via line 2 into condenser 3 and the process continues, the product accumulating in pot 1, from whence it may be drawn off. Alternatively the hot condensate from 3 may flow via lines 4 and 6 to the bottom of reactor 7, overflowing via line 8 into pot 1. Magnesium blocks may be stored in hopper 9 to run the process as a continuous one.  It is preferred that the magnesium is always present in excess.
Patent GB-484631-A (GB)
Title: Improvements in or relating to rotary valves
IPC: F01L7/02
Filed: 1937-05-04
Abstract: 484,631. Valves. SEIFERT, C. H. May 4, 1937, No. 12759. Convention date, May 4, 1936. [Class 7 (vi)] [Also in Group XXIX] A packing for rotary valves comprises two split rings 13 connected by at least two bars 14 of which the trailing sides 16 are oblique to radial lines 19 so as to cause the bars to be forced outwardly into sealing contact with the valve casing 8a when the valve rotates in the normal direction. The exhaust valve 5a shown has the leading sides 15 of the bars 14 also arranged obliquely. The bars fit in longitudinal grooves on opposite sides of the valve port 9a, the sides of these grooves being parallel and obliquely arranged. The rings 13 fit in circumferential grooves, and their split ends are on the same side of the valve as the port 9a. The valve may be arranged to serve more than one cylinder. In the case of an inlet valve, one of the bars 14 is located near the trailing edge of the valve port.
Patent GB-636830-A (GB)
Title: Automatic feed water regulating apparatus for steam boilers
IPC: F22D5/14
Filed: 1948-05-10
Abstract: 636,830. Regulating liquid-levels. NOBLE, E. E. May 10, 1948, No. 12799. [Class 123(i)] In an automatic feed water regulating apparatus for steam boilers the feed regulating valve is controlled by the contraction and expansion of an indirect tube 14 in response to differential pressure between that in the steam and water drum 10 operating through a vessel 15 having a water level above that in the boiler 10, and that in the steam main 19, the function of tube 14 being assisted by a second inclined tube 11 connected at its opposite ends to the steam and water spaces of the boiler 10. Each tube 11 and 14 expands as it fills with steam, and contracts when water displaces the steam. The regulating valve (not shown) is opened by contraction of tube 14 and expansion of tube 11, and vice versa, the free ends of both tubes being connected through links 21, 23 to a lever 24 controlling the valve. The head of water in the tube 11, and hence its relative degree of expansion, depends merely on the water level in the boiler 10, being connected thereto through tubes 12 and 13. The pressure differential acting on tube 14 through a pipe 28, vessel 15, and a pipe 14a, on the one hand, and through pipe 16 on the other, may be varied in two ways. Firstly the head of water in the vessel 15 and the pipe 14a, derived by condensation from the pipe 13, and the tubes 11 and 14, can be adjusted by a rotatable overflow pipe 15a connected to the pipe 28. Secondly, the pressure acting on the upper end of the tube 14 from the main 19 is varied by a rotatable pipe 18 having a hole 17 the inclination of which to the direction of steam flow being hence variable. A needle valve 32 permits bye-passing of steam from the boiler 10 to the pipe 16. To prevent violent oscillations of the water column in the tube 14 upon sudden pressure changes in the boiler, the vessel 15 has a smaller internal area at its bottom than at its top. A screw cock 33 similarly assists in this damping effect.
Patent GB-1000488-A (GB)
Title: Method of testing terephthalic acid to be converted into polyethylene terephthalate
IPC: C07C63/26
Filed: 1962-04-03
Abstract: A batch of terephthalic acid is tested to determine its suitability for conversion into polyethylene terephthalate by converting a small portion of the batch of dry weight W to its normal barium salt, ascertaining the dry weight A of the barium salt thus obtained, calculating the purity of the batch from the formula Purity (%) = A x 0.551 x 100/W + correction factor, where the correction factor = 100 - A1 x 0.551 x 100/W1 where W1 is the dry weight of a portion of pure terephthalic acid and A1 is the dry weight of the normal barium salt of said portion of pure terephthalic and rejecting the batch if its purity is thus found to be less than 99%.  Terephthalic acid of suitable purity may be made by the process of Specification 825,375. The purified terephthalic acid may be converted into polyethylene terephthalate by esterifying it under pressure with ethylene glycol in the presence of titanium dioxide and cobaltous acetate and polymerizing the product in the presence of antimony oxide and phosphorous acid.  Specifications 747,204 and 825,375 are referred to.ALSO:A batch of terephthalic acid is tested to determine its purity by converting a small portion of the batch of dry weight W to its normal barium salt, ascertaining the dry weight A of the barium salt thus obtained and calculating the purity from the formula:- <FORM:1000488/B1-B2/1> where W1 is the dry weight of a portion of pure terephthalic acid and A1 is the dry weight of the normal barium salt of said portion of pure terephthalic acid.  If the purity is 99% or more the batch is converted to polyethylene terephthalate (see Division C3).  The barium salt is made by dissolving the terephthalic acid in aqueous sodium hydroxide solution and precipitating the salt by adding an aqueous solution of barium acetate and acetic acid. Specifications 747,204 and 825,375 are referred to.
Patent GB-795871-A (GB)
Title: A process for the recovery of dry substances from their solutions or suspensions by evaporation in thin layers
IPC: F26B3/22
Filed: 1955-05-03
Abstract: <PICT:0795871/III/1> Dry substances are obtained in finely-divided form from solutions or suspensions by feeding the solution or suspension through pipe 15 into a rotating annular channel 10 which flings the liquid on to the inner surface of an upright cylinder 1; the liquid then flows down, through slot 16, over the lower part of the surface, which is heated by jacket 2, the liquid layer being wiped over the hot surface, transversely to the direction of downward flow, by means of distributer elements 6.  The liquid is evaporated, and the vapours pass out through pipe 18, which may be connected to a vacuum apparatus.  The dried substance is ground to a fine powder by elements 6, and is discharged through pipe 17.  The bulk density of the product is higher than that obtained by atomizing driers.  The process may be used to obtain powdered salts, sugar, carbon, milk and egg.  The distributer elements are movably mounted on hinges 7 attached to collars 8 and stabilizing wheel 9; and both collars and wheel are mounted on the same shaft, i.e. shaft 3 driven by motor 4, which causes rotation of the distributing device 10.  The drying operation can be accelerated by blowing suitable amounts of hot gas or superheated steam into the cylinder from the bottom end. Specifications 640,908, 656,605 and 748,307 are referred to.
Patent GB-935374-A (GB)
Title: Improved reply detector
IPC: H04N7/173
Filed: 1959-12-16
Abstract: 935,374. Electric selective signalling systems. SKIATRON ELECTRONICS & TELEVISION CORPORATION. Dec. 16, 1959 [Dec. 17, 1958], No. 12959/60. Divided out of 935,371. Class 40 (1). A reply detector for use in the subscription television system described in Specification 935,371, which is referred to is described. The circuit receives one of two frequencies f1 or f2 on a reply line 800 and registers which of the two frequencies has been received on one part of three pairs of relays depending upon which timing signal of three timing signals G1, G11 and G111 is present. Each input signal is amplified (automatic gain control amplifier 808, 810) clipped and shaped (pentode 812) and passed via one of two filters f1 or f2 to a further clipping-amplifier 818 or 820, which only amplifies signals above a threshold of 25 volts and then via a cathode-follower to one pair of relays. If timing signal G1 is present for example, then the input signal to the relays, which is on one of lines 836 and 838 causes current to flow through one of windings 858 and 878 to latch the associated contact 863 or 862 respectively, and the particular relay that is latched applies an earth marking to one of the output leads 866. The relays are reset by pulsing their second windings. In an attempt to avoid errors the timing pulses are arranged to occur just after a reply signal commences and before it finishes. If an error should be detected elsewhere in the system a negative pulse on a lead 830 inhibits any outputs from the cathode followers. Specification 935,376 also is referred to.
Patent GB-1206074-A (GB)
Title: Agitating apparatus
Inventor: TANAKA MASATAMI
IPC: C12M1/06
Filed: 1969-03-12
Abstract: 1,206,074. Agitating and aerating liquids. KYOWA HAKKO KOGYO CO. Ltd. 12 March, 1969, No. 12979/69. Heading B1C. An aeration and agitation apparatus for liquids and especially for fermentation processes has a bladed rotor 3 and a stator 1 with a central opening, an inner annular portion and an upwardly centred peripheral portion 14 with radical blades 15 (which may be curved) surrounding the rotor. Gas is supplied through jets 5.
Patent GB-150044-A (GB)
Title: Improvements in stops for sliding sashes
IPC: E05F11/00
Filed: 1919-05-23
Abstract: 150,044. Pierce, J. May 23, 1919. Window stops. - A lever pivoted to the window-frame at a<3> is formed with a projection a<1> in the path of a part c<1> on a plate c secured to the sash, which is thus stopped against upward movement at a predetermined point, unless the lever is first raised into the position shown in dotted lines. Stops b', b<2>, limit the movement of the lever, which is arranged to permit the sash to be lowered freely. A pin e may be passed through a hole a' to lock the device.
Patent GB-572107-A (GB)
Title: Improvements in or relating to floating annular toothed gearing
IPC: F16H1/10
Filed: 1943-08-12
Abstract: 572,107. Toothed gearing. NORTHERN PATENT DEVELOPMENTS, Ltd., and BARTLETT, B. G. W. Aug. 12, 1943, No. 13071. [Class 80 (i)] Relates to floating annular toothed gearing of the type wherein a toothed gear 14 is disposed on the inner surface of an annular floating ring 11 and is adapted to engage an externallytoothed pinion 15, the floating ring having external teeth or a pulley surface 12. According to the invention the internal toothed gear of the annular ring 11 and the pinion meshing therewith are provided with loose rings 17, 18 disposed free and floating within grooves 19, 20 formed on the respective gears 15, 11, the said rings abutting each other on the pitch circles of the gears, each of the rings having a diameter different from that of the pitch diameter of its respective gears. The rings serve to prevent relative lateral movement of the coacting gears. The floating ring 11 has a pulley surface 12 engaged by a belt 13.
Patent GB-405938-A (GB)
Title: Manufacture of chlorinated arylenethiazoles
IPC: C07D277/82
Filed: 1932-05-06
Abstract: Chlorinated 2-arylaminoarylenethiazoles are prepared by treating a diarylthiocarbamide having at least one free o-position or a 2-arylaminoarylenethiazole with chlorinating agents in the presence or absence of a carrier and for a suspending medium. Suitable media are nitrobenzene, nitrotoluene, acetic acid, ethylenedichloride, liquid sulphur dioxide, or chlorbenzenes, and carriers are iron or iodine; reaction may be performed under pressure.  In examples: (1) 2 - o - toluidino - 4 - methylbenzthiazole is treated in nitrobenzene with sulphuryl chloride or with chlorine to give 2 - (5<1> - chloro - o - toluidino) - 4 - methyl - 6 - chlorbenzthiazole : (2) di-o-tolylthiocarbamide is treated with chlorine in o-dichlorbenzene or nitrobenzene to give the same product as in (1) ; (3) thiocarbanilide is chlorinated in nitrobenzene to give 2-(2<1>-4<1>-dichloranilino)-6-chlorbenzthiazole, similar treatment of p-chlordiphenylthiocarbamide gives 2-(2<1>.4<1>-dichloranilino) - benzthiazole : 4) di - o - anisylthiocarbamide on chlorination in o-dichlorbenzene gives 2 - (chloro - o - anisidino) - chloro - 4 - methoxybenzthiazole.
Patent GB-132008-A (GB)
IPC: F04F5/46
Abstract: 132,008. Weir, G. & J., and Lang, C. R. Aug. 30, 1918. Aspirating-apparatus, ejector. -In two-stage air-ejectors for steam - condensing and feedwater system on steam-ships, such as are described in Specifications 125,149, 125,150, and 126,014, [all in Class 123 (ii), Steam generators], high-pressure steam is used at the initial stage and low-pressure steam at the second stage. In the illustrated construction, one or more high-pressure steam nozzles A induce the condenser products through the non-return valve C. The mixture passes through the annular passage formed by a cone D<1> and is subjected to the action of low-pressure steam escaping from the ring of nozzles D<2>. In the delivery pipe, a stream-line filling-piece D<3> is inserted.
Patent GB-869822-A (GB)
Title: Improvements relating to electrical computing apparatus
Inventor: HALL ANTHONY
IPC: G06J1/00
Filed: 1957-04-25
Abstract: 869,822. Electric analogue calculating. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. ;Jaly 3, 1958 [April 25, 1957], No. 13230/57. Class 37. In Fig. 1 a D.C. amplifier is supplied with an input analogue voltage EI over a series resistance RA and has an output to input feedback path comprising one of a plurality of fixed resistors R to 64R whose values are in binary relation which are selectable by a range of switches RL 1  to RL 7  operated in response to a binary digital input quantity; the output EO representing the product of the quantities. In Fig. 2 electronic switching is achieved by connecting the common anodes of half-wave diodes D 1 , D 2 , D 3  to a positive source over resistor RS 2  and returning the cathodes respectively to the amplifier input, a positive gating pulse source and to the appropriate binary resistance (e.g. 2R) whereby in absence of a gate pulse D 1 , D 3  are non-conductive and D 2  is conductive so that 2R is disconnected and in presence of a positive gate pulse D 2  is non- conductive and D 1 , D 3  conductive to connect the selected feedback resistor. The switching may alternatively be mechanical or electromechanical.
Patent GB-179947-A (GB)
IPC: F25J3/04
Filed: 1922-05-11
Abstract: 179,947. Zack, M. May 11, 1921, [Convention date]. No Patent granted (Sealing feenot paid). Separating gaseous mixtures by liquefaction. - Argon is obtained from liquid air or liquid raw oxygen by partial evaporation, the residual liquid being subjected to reduced pressure ; the liquid portion and the evaporate are each separated into a liquid and a vapour. In the apparatus shown, liquid air is supplied to a vessel a; the vapour formed therein passee by a pipe m to one compartment, provided with baffles, of a second contained f, while the liquid passes to the lower part g of the other compartment of the second container. The part g is connected with theupper part i of the second container by tubes h, the parts g, h, i being under vacuum or reduced pressure. Liquid outlets q, r and gas outlets o, p are provided.