baber/WOPTO huggingface dataset:
Patent GB-1035415-A (GB)
Title: Process for treating silica refractory
Inventor: O'CONNELL THOMAS BERNARD
IPC: C04B41/45
Filed: 1965-06-10
Abstract: 1,035,415. Glass melting furnaces. LIBBEYOWENS-FORD GLASS CO. June 10, 1965, No. 24512/65. Heading F4B. Crystalline scale formation on the roof and side walls of the refining zone of a glass melting furnace is turned into a sticky mass of sodium silicate which adheres to said walls by injecting a reducing gas, e.g. CO, H 2 , SO 2  or dissociated NH 3  or hydrocarbons, when the furnace has been operating for a while. Under the reducing conditions alkali and sulphate vapours where the both react with the silica refractory to form a protective silicate absorbing the crystalline scale which would otherwise fall off on to the glass. The gas can be introduced by burning natural gas incompletely in a burner extending through the breastwall of the refining chamber care being taken to avoid reduction to the glass melt. This may be achieved by operating the burner for 30-100 minutes followed by an off cycle of 20-30 minutes.
Patent GB-958695-A (GB)
Title: Production of fumaric acid
IPC: C07C51/353
Filed: 1961-07-06
Abstract: White fumaric acid is obtained from coloured aqueous maleic acid solution by contacting the solution at 55 DEG  to 85 DEG C. with a bromine-providing material wherein the oxidation state of the bromine is less than plus 5, and an oxidizing agent, the initial concentration of the maleic acid solution being 10% to 70% by weight, the amount of bromine-providing material being present in an amount equivalent in bromine content to at least 0.001% of ammonium bromide based on the weight of the maleic acid, the oxidizing agent having a standard oxidation reduction potential of at least 1.23 volts and being present in an amount oxidatively equivalent to from 0.003% to 10% of ammonium persulphate based on the weight of the maleic acid. In examples fumaric acid is obtained from maleic acid using ammonium bromide, ammonium persulphate and hydrogen peroxide. Other bromine-providing materials mentioned are cadmium ammonium bromide, sodium bromide, hydrogen bromide, manganese bromide, elemental bromine and N-bromosuccinimide. Other oxidizing agents mentioned are peracetic acid, perbenzoic acid, cumene hydroperoxide, t-butyl hydroperoxide, benzoyl peroxide, lauroyl peroxide, t-butyl peroxide, sodium perborate and chlorates.  Specifications 909,382 and 958,694 are referred to.
Patent GB-675115-A (GB)
Title: Improvements in or relating to washing machines
Inventor: PENZIG OSCAR DUDLEY
IPC: D06F34/24
Filed: 1949-09-24
Abstract: 675,115. Thermal switches. FISHER & LUDLOW, Ltd. Sept. 19, 1950. [Sept. 24, 1949] No. 24578/49. Class 38 (v). [Also in Groups VIII and XXXVII] A thermally responsive switch 23 for controlling the operation of hot and cold water inlet valves of a washing machine (see Group VIII) comprises two blade members arranged to operate at slightly different temperatures, the blade members being as described in Specification 600,055 and only one (48) being shown in Fig. 4. The blade members are secured to a base plate 42 which projects into the tub 11 of the washing machine. When a temperature of 92F is reached a contact G on member 48 moves with a snap action from a fixed contact A to a fixed contact B. A similar movement of the second blade member occurs at 103F. The base plate 42 has a peripheral flange 42 rivetted to a fixing member 44, and both are secured to the wall 46 of the tub 11 by means of bolts 45 mounted on a ring 8. A rubber washer 47 is secured between the wall 46 and member 44 and a further washer 7 surrounds each bolt 45.
Patent GB-645399-A (GB)
Title: Improvements in or relating to devices for supporting sacks to be loaded
IPC: B65B39/06
Filed: 1948-09-21
Abstract: 645,399. Hooks. FLUX, R. L. Sept. 21, 1948, No. 24733. [Class 89(ii)] [Also in Group I] Hooks 14 are rigidly secured to rods 15 rotatably mounted in the opposite sides of the flange 13, defining the charging opening of a sack holder 11, the rods being interconnected by a link 16 pinned at its ends to short oppositely directed arms 17 secured to the rods so that when the handle 20 carried by one of the rods 15 is pulled down the rods are rotated and the hooks retracted through apertures 19 to release the sack engaged thereby. A spring 21 biasses the hooks to the sack engaging position.
Patent GB-908838-A (GB)
Title: Improvements in or relating to electric cable glands
Inventor: LAWMAN WILLIAM EDWARD
IPC: F16L5/02
Filed: 1959-07-18
Abstract: 908,838. Mechanical couplings for cable covering; preventing access of moisture. BRITISH ENGINES Ltd. July 11, 1960 [July 18, 1959], No. 24736/59. Class 38 (1). A cable gland for panel mounting has a body 10 with a bore 14 in which a deformable insert 11, of insulating material, e.g. P.V.C., rubber, bonded to shoulder 15, is forced into contact with the outside of the cable to provide a moisture-proof seal by a wedge member 12 screwed down by cap nut 13. Cable armouring is clamped against taper 24 by nut 26. The gland can seal on the outer sheathing of the cable, Fig. 2 (not shown). In a two-part gland body 10b, having the wedge member retained in it screws on to body 10a which contains the sealing insert, Fig. 3 (not shown). Seals on both outer sheath and cable or double sealing on cables may be done by interchanging the body members. Earth continuity may be maintained by using a metallic deformable insert, e.g. lead. According to the Provisional Specification the gland may be of the form described in Specification 852,132.
Patent GB-789697-A (GB)
Title: Improvements relating to joints for shafts, rods and the like
IPC: B08B9/04
Filed: 1955-08-30
Abstract: 789,697. Locking nuts &c. WARD, E. L. July 18, 1956 [Aug. 30, 1955], No. 24796/55. Class 89(1) [Also in Groups XXIV and XXVIII] A locking spring 8 for a rod or shaft joint and formed from helically coiled wire of rectangular cross-section, has parts 9, 10 lying substantially parallel to the axis of the coil. The spring may comprise a part of or a complete coil, or two or more coils.
Patent GB-1222132-A (GB)
Title: Improvements in fastening clamps for tubes
IPC: F16L3/10
Filed: 1968-05-24
Abstract: 1,222,132. Clips; clamps. SOC. INDUSTRIELLE DU METAL USINE. 24 May, 1968 [26 May, 1967], No. 24826/68. Heading E2B. A tube clamp comprises a resilient gripping portion 1 for gripping the tube 6 over more than half of its periphery and a locking arch 14 for fitting on the gripping portion, the latter having at each extremity a rib 8 flanked by two oblique inwardly directed ramps 10 terminating in bearing surfaces 12 for the arch, which terminates in forked ends 16 having outwardly directed portions 17 provided with bearing surfaces adapted to enter into locking engagement with the bearing surfaces of the gripping portion. As shown, the gripping portion may be made from a plastics material and the locking arch may be of metal or plastics material.
Patent GB-772780-A (GB)
Title: Improvements in or relating to preparation of l-glutamine
IPC: C07C237/00
Filed: 1955-08-30
Abstract: L-Glutamine is prepared by hydrolysing an alkyl ester of L-isoglutamine or an acid addition salt thereof.  The hydrolysis is preferably conducted in a mixture of water and an inert watersoluble organic solvent having a dipole moment greater than that of water (e.g. acetone, acetonitrile) using an alkaline hydrolysing agent (e.g. sodium hydroxide).  The preferred acid addition salts are the hydrochloride and hydrobromide and the preferred esters are the methyl, ethyl, propyl and butyl esters. The alkyl-L-isoglutamine hydrohalide starting materials are obtained from L-glutamic acid by refluxing the latter with an alkanol in presence of sulphuric acid to give an alkyl-L-5-oxo-2-pyrrolidone-carboxylate or by heating the glutamic acid for a time at 180 DEG  C. and esterifying the resulting L-5-oxo-2-pyrrolidonecarboxylic acid with an alkanol, treating this ester with anhydrous ammonia to give L-5-oxo-2-pyrrolidonecarboxamide and reacting the latter with an alkanol in presence of an anhydrous hydrogen halide.  The L-5-oxo-2-pyrrolidonecarboxamide may also be prepared by ammonolysis of a dialkyl ester of L-glutamic acid with concentrated aqueous ammonia solution.  The alkanol used is preferably n-butanol.  L-Glutamine is recovered from the resulting alkali metal salts thereof by treatment with a weak organic acid (e.g. formic acid).
Patent GB-758697-A (GB)
Title: Improvements in a yieldable mining support structure
IPC: E21D11/00
Filed: 1954-08-26
Abstract: 758,697. Mine supporting arch. GUTEHOFFNUNGSHUTTE STERKRADE AKT.- GES. Aug. 26, 1954 [Oct. 17, 1953], No. 24837/54. Class 20(2). A mine gallery supporting arch particularly for steeply inclined strata comprises sections 3, 4, 5 slidable relative to one another the bottom section 3 being secured at its upper end to the rock wall by a rock anchor 6. The other side of the arch comprises a bar 1 connected to the section 5, secured to the rock wall by anchors 6 and supported at its foot on a wooden prop 2. Stops 8 prevent the sections 4, 5 drawing apart.
Patent GB-262699-A (GB)
Title: Improvements relating to tennis and like racquets
IPC: A63B49/02
Filed: 1926-10-07
Abstract: 262,699. Gridley, J. Oct. 7, 1926. Addition to 244,566. Rackets. - A tennis or like racket having its frame and handle cut from a slab of multi-ply wood has the outer surface of the frame faced with a reinforcement of cane. As shown, the racket frame and handle, cut from a slab of multi-ply wood as described in the parent Specification, has an outer facing E of cane secured by cementing and, if desired, by pegging. The strip extends to the end of the handle and is reduced in cross-section between the handle strips G. The strip E may terminate at a point just below the shoulders of the racket.
Patent GB-441189-A (GB)
Title: Improvements in and relating to controllers for electric welding machines
IPC: B23K11/24
Filed: 1935-09-07
Abstract: 441,189. Supply systems for resistance welding. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 7, 1935, No. 24952. Convention date, Sept. 7, 1934. [Class 38 (iv)] Grid-controlled discharge tubes in the primaryÀ of the welding transformer of a seam welding machine are associated with synchronously rotated switch drums with slip rings and connected commutator segments corresponding to the number of cycles of the main supply current allotted to one revolution of the drum, the arrangement being such that definite cycles can be energized or deenergized, thus regulating the energy supplied for welding. The circuit of the primary winding 1 includes a foot-operated switch 2 and discharge tubes 3, 4 adapted to pass positive and negative parts of each cycle respectively when these grids are biassed positively from the secondaries 7, 8 of a control transformer. The grids are subjected to a negative potential from batteries 5, 6 through resistances 9, 10 and the secondaries 7, 8. When the battery and secondary corresponding to each valve are short circuited by the pairs of leads 11 or 12, each battery is connected directly to its appropriate grid and no current can flow in the main circuit. When, however, the circuits 11 and 12 are open, the positive peaks of the A.C. from the secondaries 7, 8 energize the grids and the discharge tubes conduct the main current. The switch drums 13, 14 corresponding to the positive and negative parts of each cycle respectively are provided with such a number of segments and are driven at such a speed by the synchronous motor 17 that one segment corresponds to each cycle of the main supply current. Each segment is connected to its corresponding slip ring and each pair of slip rings for example a, a<1> is connected to its corresponding switch in the assembly 18. In the example shown, selective opening or closing of the switches 18 energizes or de-energizes the corresponding cycle in each sequence of twelve cycles occuring during one revolution of the drums 13. 14. The ignition point and energy of all the energized cycles may be adjusted by the phase shifter 21. A switch 20 may reverse the current in the transformer 22 according to the position at which the motor 17 falls into synchronism, the correct sequence being indicated by illumination of the lamp 19.
Patent GB-360526-A (GB)
Title: Improvements in or relating to the driving of rolling mill machines
IPC: H02P1/34
Filed: 1930-08-20
Abstract: 360,526. Control of A.C. motors. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Aug. 20, 1930, No. 24955. Convention date, Sept. 27, 1929. [Class 38 (iii).] The rotor of an A.C. induction motor 10, that is driving a rolling-mill &c. and is being continually accelerated, braked and reversed, is connected to an impedance starter comprising inductances 18 in parallel with resistances 21.
Patent GB-1304487-A (GB)
IPC: C07C335/04
Filed: 1971-04-19
Abstract: 1304487 Aliphatic and cycloaliphatic 1,3- disubstituted thioureas GLANZSTOFF AG 19 April1971 [28March 1970] 25088/71 Heading C2C Aliphatic and cycloaliphatic 1,3-disubstituted symmetrical thioureas are prepared by reacting a primary aliphatic or cycloaliphatic amine with carbon disulphide in the presence of active charcoal. The reaction is preferably carried out in the presence of an inert solvent using a molar ratio of amine to CS 2  of from 3 : 1 to 1 : 1 at a temperature of from 20 to 250C. Examples describe the preparation of N,N<SP>1</SP>-di-n-butyl thiourea, N,N<SP>1</SP>-di-cyclohexyl thiourea, N,N<SP>1</SP>- di-n-hexyl thiourea, N,N<SP>1</SP>-di-n-hexyldecyl thiourea, N,N<SP>1</SP>-di-isopropyl thiourea, and N,N<SP>1</SP>-ditertbutyl thiourea.
Patent GB-324938-A (GB)
Title: Improvements in apparatus for cooling air particularly for ventilating purposes
IPC: F24F6/04
Filed: 1928-09-03
Abstract: 324,938. Bour, E. F. Sept. 3, 1928. Air-moistening. - Apparatus for moistening air, particularly for cooling or ventilating purposes, consists of a moistened fabric 6, through which the air passes, stretched in zig-zag manner between grids 5 forming the air inlet and outlet faces of a frame adapted to be dismantled and packed for transport. The grids together with the closed sides of the frame are. packed in a water tank 3 in which the frame stands when in use. The. top 4 of the frame forms a cover for the tank and is secured thereto by studs screwed into the lugs 10 on the tank and the cover. The frame is placed in line with a ventilation fan. In a modification, the frame is formed of grids 19, Fig. 5, and top and bottom horizontal members 21. In another arrangement, the grids are dispensed with and the fabric is attached to hooks 25, Fig. 7, on the horizontal members. The air outlet side of the frame may be provided with a directing screen 29, Fig. 9, or a pervious diffusing bag 31, Fig. 10. The Provisional Specification describes apparatus comprising fabric sheets stretched on rectangular frames clamped between end frames, and disposed in a shallow water tank.
Patent GB-654160-A (GB)
Title: Improvements in or relating to rolling of wires
IPC: B21B37/48
Filed: 1947-09-16
Abstract: 654,160. Rolling. ROZIERES, J. A. L. Sept. 16, 1947, No. 25322. Convention date, Sept. 20, 1946. [Class 83 (iv)] Wire is rolled in a continuous mill in 'which tension is applied to the wire on each side of each stand or on each side of each stand except the first. Automatic regulation may be employed to maintain the tension constant. When tension is to be applied on the entry side of the first stand the delivery reel 11, Fig. 3, carries a brake drum 18, on which pressure is applied by a lever pivoted at 17, and carrying a weighted pulley 15 round which a loop of the wire 13 passes. The housings of the stands may be mounted to rock on a roller 36, Fig. 4, under the control of balancing springs 37, 38, Fig. 5, departure in either direction from the neutral position being indicated on a dial gauge 39. In a modification the tendency of the stand to rock is resisted by a piston in a hydraulic cylinder and pressure reactions are shown by the gauge. Both rolls are driven through wobblers 27 to balance out the effect of the driving torque. The tension should approach the elastic limit of the wire. The various motor controls may be manually adjusted in accordance with the gauge indications or the gauges may be arranged to operate motor control rheostats automatically. The motors are preferably compound wound to give a twenty per cent drop in speed between the load and full load. A quartz piezoelectric cell may be employed.
Patent GB-799126-A (GB)
Title: Improvements in or relating to rectilinear-motion bearings
IPC: F16C33/48
Filed: 1956-08-20
Abstract: 799,126. Rectilinear -- motion bearings. SCHAEFFLER, W., and SCHAEFFLER, G., [trading as INDUSTRIEWERK SCHAEFFLER OHG]. Aug. 20,1956 [Aug. 18, 1955], No. 25417/56. Class 12 (1). A rectilinear - motion bearing comprises a plurality of cage parts 1, 2 each arranged to hold a plurality of rolling elements 4 and each adapted for direct or indirect releasable connection to an adjoining part to form a complete cage structure of any desired length. Adjacent parts may be coupled together by inter-engaging hooks 5, 6 formed on the ends of the cage parts or by co-operating dovetail shaped grooves and tongues formed as shown in Fig. 2. Alternatively, the grooves and tongues extend in the direction of the thickness of the cage parts as shown in Fig. 3. In the modifications shown in Figs. 4 and 5, the cage parts are connected by intermediate coupling members 17, 21 respectively. The cage parts may be deformed as shown in Fig. 6 so that the rolling elements in one row are in a different plane from the rolling elements in another row.
Patent GB-154150-A (GB)
Title: Improvements in or relating to the production of kinematograph colour pictures
IPC: G03B33/00
Filed: 1920-09-03
Abstract: 154,150. Zoechrome, Ltd., and Middleton, T. P. Sept. 3, 1920. Kinematograph films.-Relates to the production of negative films comprising separate colour records and " Mack and white " images, and to the production of multi-colour positive films capable of projection at the rate of 16 pictures per second with an ordinary projector. Negative films are exposed at the rate of 32 pictures per second, each alternate exposure being made through a yellow screen as usually employed in conjunction with panchromatic film to produca " black and white " pictures, and the other exposures being made through different colour screens. Fig. 1 shows diagrammatically colour screens a of which each alternate screen K is yellow, and the others are respectively blueviolet, green, and red: The exposures are made through one lens and each screen in turn to produce a negative film as indicated at b. Alternatively they may be made through two lenses, one of which has a yellow screen and the other rotatable colour screens as indicated in Fig. 1<a>. The colour screens may comprise red and green screens only. " Black and white " positives are printed irom negatives as above described by printing the alternate images 1, 3, 5 &c. in close order on the film. These positives may then be converted into multi-colour positives by printing colour images in superposition upon them. In a three-colour system each colour image is printed three times as indicated by c, the figures representing the motion phases as in the negative film. In a two-colour system each colour image is printed twice. The manner in which the superposed images are arranged on the " black and white " images may be modified. Printing may be effected by a machine as described in Specification 16353/13 but modified so as to produce the necessary multiple picture shifts of the negative film. The colour images may be printed slightly out of focus, or by the various dye and colour transfer methods. Positives of a similar character may be printed from negative films which differ from those described in that each alternate image is made through a red screen, the first printing of the positive being followed by toning the images blue.
Patent GB-712096-A (GB)
Title: Improved means for the heating of evaporators and like apparatus
IPC: B01J19/00
Filed: 1950-10-20
Abstract: <PICT:0712096/III/1> In a still of the type wherein heating gases are passed between the outer walls of a container 1 to be heated and the inner walls of a jacket 2, a small but even space 3 is provided between the walls and a lateral supply and/or withdrawal connection 9 for the heating gases leads to or from an annular distributing or collecting channel 6, the resistance to the passage of gases between the channel 6 and the space 3 diminishing as the distance from the connection 9 decreases.  As shown in Fig. 1, heating gases leaving the space 3 flow through a gap formed between a circular row of bricks 8 and the wall of the container 1, this gap being narrowest adjacent the outlet connection 9 and widest at that part most remote from the outlet connection.
Patent GB-423376-A (GB)
Title: Improvements in or relating to chairs, settees, tables and other pieces of furniture
IPC: A47C5/14
Filed: 1933-09-15
Abstract: 423,376. Furniture frames. GOODEARL BROS., Ltd., and BARNES, A. E., Mendy Street, High Wycombe, Bucking- hamshire. Sept. 15, 1933, No. 25614. [Class 52 (ii)] Two or more elements of a piece of furniture or of the frame thereof, are formed integrally from a single sheet or strip of material by slitting the sheet or strip and bending the separated parts away from each other without moving the slit faces substantially out of the plane of the slit. For example, the legs a and b, the arm c and one side of the back d of a chair are formed by cutting a slit f, Fig. 3, in a strip of wood, and bending the parts a, c in the plane of the slit. The material may be wood or metal, and a single strip or sheet may be formed with slits in various parts of its area.
Patent GB-283647-A (GB)
Title: Improvements in internal combustion engined locomotives and other motor rail vehicles
IPC: B61C5/00
Filed: 1926-10-15
Abstract: 283,647. Holmes, V. W. Oct. 15, 1926. Weight on axles, adjusting distribution of. - An internal-combustion engine locomotive or other rail motor vehicle, in which the engine shaft is a driving wheel axle or is coaxial therewith, is provided with means to transfer temporarily all or part of the weight normally carried by the driving wheel on to the carrying wheels so as to facilitate starting. The transference of weight may be effected mechanically, electrically or hydraulically. In the construction shown the axle-boxes A of one of the driving axles are provided with hydraulic cylinders B having pistons C through which the weight is normally transmitted from the frame by links H, springs E and buckles D. For normal running the cylinders are partly filled with oil under pressure so as to cause the driving axle to take its due proportion of the weight, but at starting the oil pressure is released and the driving-axle relieved of the weight A stop F limits the flexure of the springs when the cylinders are empty. The cylinders B are connected by pipes to an intensifying cylinder which has two floating pistons and in which the oil may be compressed by steam or compressed air. In a modification the cylinders B are normally empty, but are filled with pressure oil to relieve the driving-axle of weight.