baber/WOPTO huggingface dataset:
Patent GB-604693-A (GB)
Title: Improvements in or relating to the production of sulphonamides
IPC: C07C311/64
Filed: 1945-10-29
Abstract: p-Acylaminobenzenesulphonyl guanidines of the general formula <FORM:0604693/IV(b)/1> (in which RCO is an acyl group and R1 and R2 are the same or different and represent H or aliphatic, alicyclic or heterocyclic radicals) are made by heating the ammonium or substituted ammonium salts of the formula <FORM:0604693/IV(b)/2> in the absence of ammonia or any other ammonium compound.  The heating may take place in a liquid medium, e.g. water, ethyl alcohol, anisole or acetamide.  Temperatures above 130 DEG  C. are preferably used. Ammonium and substituted ammonium salts of acylaminobenzenesulphonyl cyanamides may be prepared from the corresponding calcium salts by reaction with ammonia or a primary or secondary amine in the presence of carbon dioxide.  In examples: (1) the ammonium salt obtained by double decomposition between the calcium salt of p-acetylamino-benzenesulphonyl cyanamide and ammonium carbonate is heated to 150-170 DEG  C. to yield p-acetylamino-benzenesulphonylguanidine; (2) a 50 per cent aqueous solution of the ammonium salt of p-acetylamino-benzenesulphonyl cyanamide is heated to 150-155 DEG  C. to yield the same product; (3) the same product is obtained by heating to 150-160 DEG  C. a suspension of p - acetylamino - benzenesulphonyl cyanamide in ethyl alcohol; (4) the methylamine salt of p-acetylamino-benzenesulphonyl cyanamide, prepared by double decomposition between methylamine carbonate and the calcium salt of p-acetylamino-benzenesulphonyl cyanamide, is heated to 170 DEG  C. to yield p-acetylamino - benzenesulphonyl methylguani - dine; and (5) the diethylamine salt of p-acetylamino-benzenesulphonyl cyanamide, prepared from the calcium salt of p-acetylamino-benzenesulphonyl cyanamide, diethylamine and carbon dioxide, is heated to 170 DEG  C. to yield p-acetylamino - benzenesulphonyl diethylguanidine.  Samples have been furnished under Sect. 2 (5) of (a) p-acetylamino-benzenesulphonyl cyclohexylguanidine and (b) p-acetylamino-benzenesulphonyl pyridylguanidine, prepared by analogous methods.  Specifications 563,766 and 595,472 are referred to.  In the Specification as open to inspection under Sect. 91, R1 and R2 in the general formula may also be aromatic radicals, or together with the nitrogen atom may form a closed ring.  This subject-matter does not appear in the Specification as accepted.
Patent GB-603755-A (GB)
Title: Improvements connected with pyrophoric lighters
IPC: F23Q2/44
Filed: 1945-10-30
Abstract: 603,755. Wick holders. TAYLOR, A. E. Oct. 30, 1945, Nos. 28706/45, 5925/46 and 20406/46. [Classes 75(i) and 75(iii)] In a pyrophoric lighter, a wick carrier 20, Fig. 4, for a wick partly or wholly composed of glass or non - combustible libres substantially completely surrounds the wick except possibly for a short length at one or both ends. The carrier may be formed by rolling a piece of sheet material into a tubular form, a projection of the sheet material forming a resilient tongue 27, or it may be cut from a tube and slotted and outwardly bowed to form resilient spring-like sections. The tubular carrier may be of metal or material not liable to be affected by heat or lighter fuel, and is preferably slightly conical and provided with lower serrations 24 to facilitate insertion of the wick in the wick hole and upper serrations 23 which are outwardly flared to provide a rim by which the carrier may be engaged and withdrawn from the wick hole. The wick may consist of glass, asbestos or other incombustible fibres 29 interlooped with cotton or other absorbent fibres 30, the fibres 30 being threaded through the tube in a U-shape till the loop extends beyond the upper end, the fibres 29 being then introduced through the loop and drawn into the tube by pulling on the lower end of the fibres 30. An aperture 22 may be provided in the carrier through which the thickest part 31 of the wick may protrude so that it is held in position in the carrier. The wicks may alternatively be held by notches impressed in the carrier after the wick has been inserted, or by a tongue directed towards the interior of the carrier. In an alternative form of composite wick, Fig. 7, a core 41 of absorbent fibres may be surrounded by a sheath 42 of incombustible fibres, or if desired the core may be incombustible and the sheath absorbent. The wick may be made of glass fibres threaded within the carrier in a U-loop, the base being held by the retaining means and the dual upper ends being splayed.
Patent GB-189322-A (GB)
Title: Liquid flow indicator
IPC: G01P13/00
Filed: 1921-10-29
Abstract: 189,322. Hawthorn, Leslie, & Co., Ltd., R. & W., Paterson, G., and Thew, C. Oct. 29, 1921. Flow meters, pressure-actuated.-A flow indicator for lubrication and other systems, comprises a converging and diverging nozzle with one of its wide ends connected through a pipe 7, to the top of a dome-shaped air vessel 3, and with its narrow portion connected at 4 to the bottom of the air vessel, which is either transparent or provided with a glazed aperture.
Patent GB-1319286-A (GB)
Title: Numerical control device
IPC: G05B19/4103
Filed: 1970-06-15
Abstract: 1319286 Programmed control of position ING C OLIVETTI & C SpA 15 June 1970 [21 June 1969] 28958/70 Heading G3N A device comprising an interpolator responsive to discontinuous positive orders for the continuous numerical positioning of a member forms a path through given points P 1 -P 5  by means of a series of circular arcs, and the member moves initially in a straight line, P 1  P 2 ' tangent to the arc P 1  P 2 , in elemental increments of Y 1  /K for X 1 , and -X 1  /K for Y 1 , where (X 1 , Y 1 ) are the co-ordinates of the point P 1 , and K is a large number dependent on the radius of the arc and on the accuracy of machining required, until either one of displacement components #X 1 , or #Y 1  attains a predetermined value to complete an interpolation phase. A formula is given relating the number of steps of (Y 1  /K, -<SP>x</SP>1/K) to the error E 1 . A second interpolation phase, P<SP>1</SP> 2  P<SP>1</SP> 3  in a direction perpendicular to OP 2  then takes place, so that the arc P 1  P 2  P 3  is approximated by the path P 1  P<SP>1</SP> 2  P<SP>1</SP> 3 . The apparatus of Fig.2 (not shown) sums the elementary increments (Yi/K, - <SP>xi</SP>/K) for a general point (Xi, Yi), and when either of #Xi, #Yi attain the predetermined value signals #Xi, #Yi are passed out to operate servomechanisms, the right hand portions of the apparatus controlling the servos in real time. At the end of each interpolation phase, that register of (R 1y , R 1x ) whose content has attained the predetermined amount is cleared, while the other has its content added to during the subsequent interpolation phase. Registers (R 2y , R 2x ) store coordinate increments appropriate to complete interpolation phases. Fig.3 (not shown) displays a complete apparatus, see Specification 1189959. The velocity of movement may be expressed as the number of elementary increments passed through in a given time, Fig.4 (not shown) and may be controlled as described in Specification 7154761. Fig.5 (not shown), displays a means for determining velocity components at (P) by using the same interpolation process on a circle of radius V, the velocity itself, from a point (R) on one of the axes X or Y, to (R<SP>1</SP>) on the radius (OPUR<SP>1</SP>) whence (TU) represents V x ; (TO), Vy for the point V. The system may have more than two degrees of freedom.
Patent GB-847322-A (GB)
Title: Improvements relating to photographic dispersions and articles made from them
IPC: G03C1/043
Filed: 1958-09-10
Abstract: Ethylene oxide condensates of the formula <FORM:0847322/IV(a)/1> where X is hydrogen or alkyl, R is alkyl, and n is an integer of up to 25 or more, are prepared by passing ethylene oxide into 2-(N-alkylanilino) ethanols, and the presence of sodium until the weight gain indicates absorption of the desired quantity. Formulate of 15 of such products, in which X is H, R ranges from CH3 to C18H37 and the ethylene oxide units from 4 to 24, are quoted.  The compounds are used in photographic emulsions.ALSO:Ethylene oxide is passed into 2-(N-alkylanilino) ethanols, for which a preparation exemplified as the normal dodecyl derivative is given, in the presence of sodium until the weight gain indicates absorption of the desired quantity. Formulae of 15 of such products in which the alkyl group ranges from CH3 to C18 H37 and the ethylene oxide units from 4 to 24 are quoted.
Patent GB-1532914-A (GB)
Title: Sealing plug for a rock borehole or the like
IPC: E21B34/06
Filed: 1977-07-12
Abstract: 1532914 Bore-hole sealing plugs DIEHL and TIP-TOP-SAAR GES FUR INDUSTRIELLE VULKANISIERUNG mbH 12 July 1977 [24 July 1976] 29145/77 Heading E1F [Also in Division F2] A bore hole sealing plug for permitting, after the plug has been positioned in the mouth of a bore hole, of passage into and retention in the hole of a fluid, hole-filling medium, e.g. a self-hardening plastics. The plug comprises a body of elastically deformable material having on its outer periphery hole-gripping means and a non-return valve located in a through bore of the body. Preferably the body is formed of rubber, tapers forwardly, has rib or ridge gripper elements 2 and moulded in spring gripper fingers 11. The bore may have a cone-shaped shoulder 4 forming a valve seat for a ball or round nosed valve 7 that is a loose fit in a moulded in liner 6 of the bore. A pin 9 can be provided for retaining the valve in the liner.
Patent GB-778783-A (GB)
Title: Improvements in machines for winding thread, yarn and the like
Inventor: FRASER HUGH
IPC: B65H54/28
Filed: 1954-10-11
Abstract: 778,783. Winding yarn. FRASER & SONS, Ltd., D. Oct. 7, 1955 [Oct. 11, 1954]. No. 29181/54. Class 120 (2). A drum winding machine in which at least one thread guide bar is connected to a rocking lever pivoted to the machine frame and carrying a cam follower in engagement with a cam, and in which the stroke of the thread guide bar is variable by altering the positions of the rocking lever and of the cam follower relatively to the frame has means provided for altering the positions of the rocking lever and cam follower in such a way that during operation of the machine the axis of the cam follower when prolonged intersects the axis of the cam at the points of reversal of the throw of the cam. In one embodiment, Fig. 1, the pivot 5 of the lever 4 is fixed and the cam axle 2 is slidably mounted between plates 9 so that the cam 1 is adjustable in the frame 3 towards or away from the pivot 5. The cam follower 8 is adjustably mounted in a slot 10 in the lever 4. In a second embodiment, Fig. 5 (not shown), the pivot 5 is again fixed, the cam follower 8 is again slidably mounted in a slot in the lever 4 and the cam axle 2 is slidably mounted in a longitudinal slot in the frame 3, being maintained in the desired position by a nut engaged by the screwthreaded end of the axle 2 this being of reduced diameter. In the embodiment shown in Fig. 6, the cam 1 is fixed in the frame 3 and the follower 8 is fixed in the lever 4, but the lever 4 and a fixed part 6 of the frame are relatively adjustable by means of a pivot 5 which engages two registering holes of the series 16, 17. In a further embodiment, Fig. 7 (not shown) the pivot 5 of the lever 4 is fixed, and the axle 2 of the cam 1 is slidable in a longitudinal slot in the frame 3, the frame also being formed with transverse slots which communicate with the longitudinal slot to receive the axle 2, which is retained in the desired position by a dowel or key-piece passed through one of the slots. The lever 4 is formed with a series of longitudinally spaced holes, the follower 8 being adjustable by passing it through a selected hole. In each case, to ensure the correct relationship between the axis of the cam follower and that of the cam, a radial hole 12 is provided in the cam 1 and an axial bore in the follower 8 through which a setting tool 11, Fig. 3, may be passed when adjusting the cam follower.
Patent GB-766932-A (GB)
Title: Improvements in and relating to plate type heat exchangers
IPC: F28F3/10
Filed: 1954-10-11
Abstract: 766,932. Plate heat exchangers. AKTIEBOLAGET SEPARATOR. Oct. 11, 1954 [Oct. 29, 1953], No. 29219/54. Class 64(3) In a plate heat exchanger, each plate 1 is provided on one side only with a sealing gasket 4 extending along the edges of the plate and secured thereto, each plate incorporating stiffening means and support for the gasket providing surfaces at an angle to the plate against which the gasket bears and by which it is supported and other surfaces at an angle to the plate against which the gasket of an adjacent plate bears. The supporting and stiffening means 5 along each edge of the plate may comprise a strip or strips attached to the plate edge as shown for example in Figs. 2, 3 and 4 or, as shown in Figs. 7, 8 and 9, it may comprise a bent-over edge portion of the plate forming a hollow profile which may be reinforced by a metal rod 10 as shown in Fig. 8.
Patent GB-1284330-A (GB)
Title: Hoisting installation
IPC: B63B27/12
Filed: 1970-06-16
Abstract: 1284330 Transferring lighters into ships BATTELLE MEMORIAL INSTITUTE 16 June 1970 [17 June 1969] 29232/70 Heading B7A [Also in Division B8] A hoisting installation for use in a lighter transporter by means of which a lighter 1 can be located in a transporter hold 2, 3 or else transported from port to starboard comprises a tower consisting of portals P 1 , P 2  each formed as three uprights m 1 , m 2 , m 3  movable on deck rails 4a, 4b, on which jibs F 1 , F 2  are pivotally mounted at each end, and jib levers f 1 , f 2  are pivotally connected to the jibs F 1 , F 2  to which lighter supporting stirrups A 1 , A 2  are attached, the jibs F 1 , F 2  being angularly displaceable by means of motor winches M 3 , M 4  which are connected by chains c 1 , c 2  and traction bars bt 1 , bt 2  to a plate d 2  pivotally connected to the jib F 2 , a plate d 1  being similarly connected to the jib F 1 . The jib levers f 1 , f 2  are also pivotally connected to the tower by a plate b* pivotally connected to levers l 1 , l 2  which thus maintains the stirrups A 1 , A 2  horizontal during the angular movement of the jibs F 1 , F 2 . In operation of the installation, the jibs F 1 , F 2  are moved to a position as shown in Fig. 3 (not shown), a lighter 1 is picked up at the port side by means of winches M 1 , M 2  attached to the stirrups and the jibs are rotated to the right by the winches M 3 , M 4  which exert a tractive effect on the chains c 1 , c 2 . The lighter can be deposited in the holds 1, 2 or if it is desired to transport the lighter to the starboard side the jibs F 1 , F 2  continue movement to the right, Figs. 4-6 (not shown), and on reaching the position shown in Fig. 6, the drive motors (D 1 ), (D 2 ), Fig. 7 (not shown), of the winches M 3 , M 4  exert a braking effect on the jibs F 1 , F 2 , the change from tractive to braking effect being effected by the electrical control circuit in Fig. 7, depending on the angular position of the winches F 1 , F 2 . For reversal of the operation, i.e. to rotate the winches F 1 , F 2  from starboard to port, the motors (D 1 ), (D 2 ) initially exert a tractive effect on chains c 1 , c 2  while in the last part of the movement (i.e. from Fig. 4 to Fig. 3) the motors produce a braking effect. In an alternative embodiment the chains and traction rods can be replaced by hydraulic or pneumatic jacks whose piston-rods are connected to the plates d 1 , d 2 .
Patent GB-692246-A (GB)
Title: Improvements relating to cam-operated electric switches
IPC: H01H1/22
Filed: 1951-12-13
Abstract: 692,246. Rotary switches. BUSCH-JAEGER LœDENSCHEIDER METALLWERKE AKT.- GES. Dec. 13, 1951 [Dec. 16, 1950], No. 29259/51. Class 38 (v) In a cam-operated switch the flexible contact spring 1 has a rigid arm 3 firmly secured to it at its contact point 10, the arm 3 being supported on a shoulder or notch 5 in the base and , being formed with a projection 7 for engagement by the cam 8.
Patent GB-173363-A (GB)
Title: Improvements in vacuum or low-pressure bulb electron-discharge apparatus
IPC: H01J19/50
Filed: 1920-10-16
Abstract: 173,363. General Electric Co., Ltd., and Trippe, C. F. Oct. 16, 1920. Vacuum tubes. - In a thermionic valve or other discharge tube, an electrode support is carried on the exterior of a cylindrical insulator, which is spaced from and mounted on the exterior of a re-entrant tubular stem. The arrangement prevents discharge between the support and the leads outside the bulb. The insulator h may be of glass, and is sealed to the re-entrant tube b. The support consists of a metal band f with arms e. In a modification, the tube is doubly re-entrant, and the insulator is supported around the tube by a spider-frame.
Patent GB-941203-A (GB)
Title: Improvements in endless belt conveyors
IPC: B65G39/16
Filed: 1959-11-03
Abstract: 941,203. Endless belt conveyers. GOODMAN MANUFACTURING CO. Nov. 3, 1959 [June 4, 1959], No. 29369/63. Divided out of 941,201. Drawings to Specification. Heading B8A. The description is included in Specification 941,201, but the claims differ.
Patent GB-445861-A (GB)
Title: Improvements in and relating to the treatment of ores
IPC: C22B3/06
Filed: 1934-10-13
Abstract: A chloridized ore containing zinc or copper chloride and lead chloride and/or sulphate is leached to remove the zinc or copper, the resulting solution is treated with a brine (No. 1) containing sodium carbonate, sulphate, and chloride to precipitate zinc or copper carbonate and form a brine (No. 2) containing sodium sulphate and chloride, the sulphate radical is removed from the brine if desired to form a brine (No. 3) containing sodium chloride only, the lead in the ore residue is then leached out with brines Nos. 2 or 3, and the lead then precipitated as carbonate by brine No. 1 to give brine No. 2 for further use in the process.  Sulphate ions may be removed from brine No. 2 by treatment with calcium, barium, or strontium chloride or by evaporation and crystallization.  By treating a part of the zinc chloride solution obtained by leaching the chloridized ore with an alkaline earth metal sulphide, zinc sulphide is obtained, and a solution of alkaline earth metal chloride which may be used to remove sulphate from brine No. 2 and thereby obtain alkaline earth metal sulphate which may be reduced to sulphide for further use in the process.  A part of the sodium chloride in brines Nos. 2 and 3 may be treated with sulphuric acid, obtained in roasting the sulphide ore, to produce hydrochloric acid, and the latter be used in the gaseous state to chloridize the roasted ore.
Patent GB-1506116-A (GB)
Title: Electric or electronic components
IPC: C08G18/18
Filed: 1976-07-15
Abstract: A process for the preparation of rigid polyurethane foams which are used as a cladding for sensitive electrical and electronic components and are deposit-free, for example, up to 125 DEG C, by the polyaddition of polyhydroxyl compounds with polyisocyanates with addition of blowing agents and catalysts, where the catalyst added is 2,4,6-tris(N,N-dimethylaminomethyl)phenol.
Patent GB-834585-A (GB)
Title: Silica refractories
IPC: C04B35/14
Filed: 1956-09-27
Abstract: A silica refractory comprises, in per cent, lime 2-10; iron oxide 1,5-15,0; the sum of lime and iron oxide 3,5-20 with the lime being at least 1/3 of the oxide; alumina less than 0,5, the remainder being silica.  Lime is mixed with the silica and iron oxide, which must be of a size passing 150 Tyler mesh, a tempering liquid added, the mixture is shaped, dried and then fired at 2600 DEG F.
Patent GB-750594-A (GB)
Title: Improvements in tape measures
IPC: G01B3/10
Filed: 1954-10-14
Abstract: 750,594. Tape-measures. LJUNGBERG, T. A. Oct. 14, 1954, No. 29624/54. Class 106(2). A steel tape-measure 2, Fig. 1, preferably having a curved profile, is locked in the mouth 4 of its holder 1 by a spring-actuated locking member 7 which is moved towards the tape to lock it and in the other direction to unlock it, the member 7 having at least one protruding tongue 12, Fig. 7, which projects so as to serve as a reading- mark for the tape and which in the locked position is in contact with the tape so as to eliminate parallax and in the unlocked position is out of contact so as to avoid wear. The locking member 7 is actuated by a straight spring 13 so as to urge the portion of the tape located in the channel formed between the flanges 9 into engagement with a stud 5 which flattens the tape and locks it between the flanges. The spring 13 is bent by means of a press-knob 21 to unlock the tape, the bending may be in two stages firstly just to free the tape so that it can be moved and secondly to free the tape completely, the second stage being marked by a heavier loading of the plate spring 13 when it contacts a stud 17. A portion 10 on the locking member acts to restore the spring 13 to locking position when the knob 21 is released.
Patent GB-192765-A (GB)
Title: Improvements in or relating to machines for use in drying or treating photographic prints, films, and the like
IPC: G03D15/02
Filed: 1921-11-07
Abstract: 192,765. Graber, E. Nov. 7, 1921. Continuous apparatus for treating; drying-apparatus. -A machine for drying prints, films &c. or paper or other material comprises a set of rollers a arranged between discs b to form a drum. The web r is fed on to the drum which is caused to rotate by means of gearing h, i, j operated from a shaft 17 and the rollers are themselves rotated at a peripheral velocity greater than that of the drum by means of a fixed wheel l with which a train of wheels m, n. p co-operates to drive a chain k engaging spurwheels at the ends of the rollers. The web finally passes round a roller s and is wound on a positively actuated bobbin t. The rollers may be heated internally by hot air, gas, electricity or steam, and air blasts are directed on to the two faces of the web by fans v<1> and pipes v supplied with air from bellows 15 actuated from the shaft 17. The apparatus is covered by a roof t<1> having a chimney u. The electrical connections for heating the rollers are shown in Fig. 4. The main leads y, z connect with the fitting shown mounted on the axle b<1> of the drum and current is taken to the rollers from terminals 10, 11, the heating elements 12 being preferably arranged in series.
Patent GB-297059-A (GB)
Abstract: 297,059. Bosch Akt.-Ges., R. Sept. 13, 1927, [Convention date]. Turning-gear.-The leads to the starting-motor 6, the ignition apparatus 8, 9, and the dynamo 3 with its automatic switch 5 and indicating lamp 4 are interconnected or branched off from the same terminal 1 of the switch-box 2. The battery 13 is connected to the other terminal 12 and the circuit is made by turning the cam 16. The press-button 7 in the lead to the starter 6 may close that circuit either directly or through a magnetic switch.
Patent GB-1011060-A (GB)
Title: Improvements relating to blooming of optical components
Inventor: DAVY JOHN RUPERT
IPC: G02B1/11
Filed: 1957-09-21
Abstract: In a process for blooming optical components, a mixture of Al2O3 and SiO is covered with a layer of Al2O3 and evaporated by heating, the vapour condensing on the components to form a coating over which a further coating of the same or some other material (e.g. As2S3) may be deposited; the evaporation is done in vacuo.  In an example, four parts by weight of SiO are mixed with one part of Al2O3, the mixture covered with a similar weight of Al2O3, and heat applied electrically by a tungsten wire passing through the top layer.  The coating produced is an alumino-silicate complex.