baber/WOPTO huggingface dataset:
Patent GB-610244-A (GB)
Title: Improvements in or relating to insert bar for composite strips
IPC: B23K20/22
Filed: 1946-04-02
Abstract: 610,244. Making composite strips, saw blades, or other tools. JESSOP STEEL CO. April 2, 1946, No. 10168. Convention date, April 16, 1945. [Classes 83 (i) and 83 (ii)] An insert bar for use in the manufacture of composite bars or strips for the production of cutting tools, is symmetrical in cr,oss-section and has a flat top 15 and bottom 16, Fig. 4, sides 17, 18, 19 and 20 diverging at an angle of between ten and fifteen degrees, and a projection 26, 27, 28 on each side of the crosssection connecting the adjacent ends- 22, 24 and 21, 23 of the sloping slides, each projection extending outwardly beyond the sloping, sides a distance Z not less than <SP>3</SP>/ 32  inch and not more than half the vertical distance M between the adjacent ends of the sloping sides, the insert having a ratio of height H to width W between 1.5: 1 and 3 : 1. The vertical distance M between the adjacent ends of the sloping sides is not less than 3/16 inch and not more than one-third the height H of the insert, and the slope of the sloping portions 26, 27 of the insert is greater than the slope of the sides 17, 18, 19, 20, but is less than ninety degrees. In a particular application, the manufacture of hacksaw blades, plain carbon steel 4, Fig. 1, is cast about two or more insert bars 2 of highspeed steel in a mould 3, the insert bar 2 having been suitably cleaned and, if desired, electrolytically plated with iron to increase bonding action. After casting, the ingot is reduced in thickness by rolling, producing the band 7, Fig. 2. The lower and upper faces of the inserts are then exposed by grinding and the band cut as indicated at 9, to provide a strip with a body portion of plain carbon steel and an edge 2 of high carbon steel in which teeth may be cut to form a hacksaw blade. Specification 437,372 is referred to.
Patent GB-541844-A (GB)
Title: Improved container for rat poison bait
IPC: A01M25/00
Filed: 1940-06-12
Abstract: 541,844. Catching rats. ELTON, C. S., and RANSON, R. M. June 12, 1940, No. 10202. [Class 5 (i)] A container for rat poison bait comprises a a rectilinear box 1, Fig. 1, having an overhang 3 with an aperture 6 and a part 4 in which the bait is placed. The side 2 is placed against a wall so that a tunnel is formed (having the overhang as a roof) through which the rats creep. An extension 5 of the overhang 3 prevents the bait falling out if the box is overturned. A hinged or slot-engaging, spring-closed lid is provided. A modification, Fig. 2, comprises a box 9 having a lid 7 overhanging at 8, the box having an aperture 11 in the wall 10 and the lid being secured to the box by a bar 12 having a spring clip and passing through apertures in the box and lid, which may be tapered for nesting. Both forms may be made of grooved parts that fit one within the other, so that they may be readily taken apart and packed flat.
Patent GB-1459941-A (GB)
Title: Electrical switch which is presettable to have its contacts  normally closed or normally open
IPC: H01H11/00
Filed: 1974-03-07
Abstract: 1459941 Switch contacts; retractive switches CGE COMPAGNIA GENERALE DI ELETTRICITA SpA 7 March 1974 [15 March 1973] 10254/74 Heading H1N An electric switch is convertible from normally-open to normally-closed, or vice versa, by removing stationary contacts 3, 4 from cavities 5, 6 and replacing them in cavities 7, 8, the terminal 40b, Fig. 3, occupying the same position relative to the switch housing in both positions of the contacts. The plane of the stationary contacts Fig. 3, lies at an angle to the plane of the integral terminals, so that in either position the terminals project through the same slots in the cover 21, Fig. 5, without having to use a different cover for each position. The stationary contacts 3, 4, are bridged by bridging contact 9 movable by spring loaded plunger 15 which may be operated manually or by a machine. Cover 21 clips on base 2 by flexible slotted legs 25, 26 on cover 21 engaging projections 29, 30 on base 2. Insulating barriers 37, 38 integral with cover 21 are provided adjacent the terminals to insulate them from adjacent metal parts or from adjacent switches.
Patent GB-1077524-A (GB)
Title: Recording sound on cinematograph film
IPC: G03B21/50
Filed: 1965-03-10
Abstract: 1,077,524. Editing sound tracks of cinematograph films. K. VOCKENHUBER, and R. HAUSER. March 10, 1965 [March 10, 1964], No. 10265/65. Heading G5R. A cinematograph projector provided with means for recording sound on the film and means for stopping and reversing the film, is provided with a counter responsive to time or film length so that the film can be reversed a predetermined amount from a given point and then run forward to this point, at which time the counter has returned to zero and energizes the sound recording means so that recording starts at the required point with the film running at normal speed. The counter may comprise a cam (28, Figs. 2-10, not shown), driven by a worm drive from the film driving means and co-operating with a switch-bar (16) which is depressed initially and allowed to return only when the cam has returned to its initial position. An auxiliary blocking cam (27) operated by a mode selection switch (10) prevents the recording circuit being completed during the reverse-forward cycle, and prevents the projector being started other than in the forward mode at the end of a reverse step. The return of the cam (28) to its initial position may cause the closing of switches (37-40, Fig. 11, not shown), thereby energizing an erase head (4), a record head (5), and an auxiliary magnetic playback apparatus (43) feeding the record head. Alternatively cam means may be provided whereby the erase head is energized before the record head by a time corresponding to the physical displacement between them; also if the playback apparatus has a delayed operation, it may be switched on correspondingly early.
Patent GB-1157154-A (GB)
Title: Improvements in or relating to Corrosion-Inhibiting Compositions
IPC: C23F11/02
Filed: 1967-03-03
Abstract: 1,157,154. Coating. LUDLOW CORP. 3 March, 1967 [7 March, 1966]; No. 10302/67. Heading B2E. [Also in Divisions B8 and C3] A corrosion inhibiting composition comprises a mixture of an adhesive binder containing amine-neutralisable carboxyl groups, a water-soluble alkali-metal nitrite, a watersoluble polyalkylene glycol, and a volatile amine. The binder may 'be casein, soya protein, carboxymethyl cellulose, pectins, alginates, gums or certain starches and may also contain petroleum waxes, stearates and waxy alcohols. Many amines are listed. The composition may be used to coat metal foils, plastics films, paper, textiles and laminates thereof.
Patent GB-1035946-A (GB)
Title: A transfer sheet for thermographic printing
IPC: B41M5/10
Filed: 1963-03-15
Abstract: 1,035,946. Thermographic transfer materials. K.G.SVENSSON. March 15,1963 [March 16,1962], No. 10316/63. Heading G2C. A thermographic transfer sheet comprises a support coated with a layer which is transferable between 50‹ and 150‹C.,the layer containing a waxy composition and at least one dye dissolved in benzyl alcohol or a di- or poly-hydric alcohol containing 1 to 8 carbon atoms, and a mutual solvent for the waxy composition and the dye solution so that the dye solution is dissolved in the waxy composition. Specified mutual solvents are blown vegetable or castor oil, oleic,lauric or capric acid or olegl alcohol. The polyhydric alcohol may be 1,2, 5-pentanetriol, 1, 2, 6-hexanetriol or 1, 2, 3, 6- hexanetetrol and the glycol may be ethylene, pentylene, hexylene, heptylene or octylene glycol or a glycol ether such as di-, tri- or tetra-ethylene glycol or dipropylene or dibutylene glycol.
Patent GB-912821-A (GB)
Title: Improvements in or relating to the polymerisation of unsaturated hydrocarbons
IPC: B01J27/22
Filed: 1960-03-23
Abstract: Normally liquid polymers or copolymers, particularly dimers, of olefins having four carbon atoms are obtained in the presence of a lamellar complex of an alkali metal and carbon, preferably graphite. The olefin is preferably isobutene which may be dimerised alone or with ethylene.  Specified complexes are KC8, KC16, KC24, KC36, KC48, KC60, and NaC64.  Free alkali metal and/or carbon may be present. Suitable conditions are -10 to 400 DEG C. and 50-4,000 p.s.i.g.  The catalyst may be used as a fixed or fluidised bed or as a slurry and a hydrocarbon solvent may be used.  Specifications 824,917 and 825,902 are referred to.
Patent GB-666426-A (GB)
Title: Improvements in cloth laying machines
IPC: A41H43/00
Filed: 1949-04-20
Abstract: 666,426. Folding fabrics. PHILLIPS & SONS (MANCHESTER), Ltd., SMITH, J. N., and COTTON, S. May 2,1950 [April 20, 1949], No. 10409/49. Class 42 (ii). Relates to cloth laying machines in which cloth is laid by a reciprocating carriage on a table having clamping devices for retaining the layers in position. The cloth a during laying passes between the nip of two inclined levers or plates C of L-shaped cross-section extending between and pivoted on brackets C<SP>1</SP> mounted at each side of the carriage; adjusting screws c pass through the shorter legs of plates C and engage brackets C<SP>1</SP> to vary the drag applied to the cloth during laying; and cam levers f are pivoted to brackets C' to project forwardly and rearwardly of the carriage, the forwardly-projecting levers lifting the clamping device at one end of the table B to allow the cloth to be laid thereunder and the rearwardly-projecting levers similarly lifting the clamping device at the other end of the table on the reverse travel of the carriage. As shown, a cloth clamping beam D covered. with card clothing d<SP>6</SP> is carried by arms d slidably pivoted to brackets D<SP>2</SP> mounted on runners D<SP>3</SP> and clampable to table B; brackets D<SP>2</SP> may be fixed at one end of the table and adjustable at the other according to the desired length of lap. Engagement of a pin d<SP>3</SP> on each arm d in a slot d<SP>4</SP> in a bracket D<SP>2</SP> ensures that beam D rises and falls vertically. As the carriage approaches the end of its travel, a cam lever f engages a roller d' on each arm d; beam D rises, as rollers d<SP>7</SP> ride up the levers f, and lifts the foremost plate C about its pivots c<SP>2</SP> to allow a fold to be made on reversal. As the carriage reverses, beam D falls to engage the new fold as rollers d' drop over the ends of levers f. As the carriage moves away, levers f pivot to pass over rollers d'. Specification 650,382 is referred to.
Patent GB-905189-A (GB)
Title: Improvements in spectacle frames
Inventor: BURNETT PERCY
IPC: G02C1/04
Filed: 1961-03-22
Abstract: 905,189. Spectacle frames. HADLEY CO. Ltd. March 22, 1961, No. 10462/61. Class 97 (1). A spectacle frame comprises metal eye wires 1 connected by a metal bridge 2 and covering 4 running along the upper parts of the eye wires; each eye wire carries a projecting joint plate 7 for carrying a side arm which is secured, for example, by means of a screw 10, in an undercut slot in the covering. Specification 761,088 is referred to.
Patent GB-663303-A (GB)
Title: Preparation of 2-aminopyrimidines
Filed: 1949-04-20
Abstract: 2-Aminopyrimidines are prepared by condensing 2-chloropyrimidine with ammonia or a primary or secondary amine. The reaction may be carried out in a solvent at a temperature of from 100 DEG  to 200 DEG  C. or from 120 DEG  to 150 DEG  C.  The solvent may be water or an organic solvent, e.g., aliphatic alcohols, and may be anhydrous or in admixture with water.  Amines mentioned are methyl-, ethyl-, propyl-, isopropyl-, n-butyl-, octyl-, lauryl-, octadecyl-, dimethyl-, methylethyl-, methylpropyl-, isohexyl- and cyclohexyl-amines. Specification 663,302 is referred to.
Patent GB-1004814-A (GB)
Title: Improvements in or relating to drink vending-machines
IPC: A47J31/40
Filed: 1963-03-18
Abstract: 1,004,814. Coin-freed beverage vending apparatus. SNELWEGERFABRIEK OLLAND N.V. March 18, 1963 [March 5, 1963], No. 10666/63. Heading G4V. A beverage vending machine having a fan 22 for creating an air stream above a mixing bowl 11 for hot liquid and other ingredients of the beverages is provided with an air-warming inlet channel 25 which forms part of the walls of a hot liquid container 17 for the beverages. As shown, the hot liquid container is arranged to fit inside the air inlet channel and hold water heated by a thermo-element. An upper compartment, which houses containers 8a, 8b for the ingredients, is partitioned from the lower compartment and closed by a door 6 which houses devices for receiving the operating-coins and selecting the ingredients. The ingredients are delivered through a funnel 9 and mixed with hot water from the container 17 by an agitator 12 before being delivered down a spout 13 into a cup placed over a sump 15. The fan 22 draws the air warmed by the container 17 through a slit 28, over the containers 8a, 8b and then through channels 20, 21, the air drawing with it, vapour rising from the mixing bowl 11.
Patent GB-1101089-A (GB)
Title: Improvements in or relating to vehicle lifting devices
IPC: B66F7/22
Filed: 1965-03-12
Abstract: 1,101,089. Vehicle lifting devices. A. W. JOHNS. 14 March, 1966 [12 March, 1965], No. 10690/65. Heading B8H. A vehicle lifting device in the form of a ramp comprises a pair of flanged tracks 11, a stand 12 on which one end 18 of each track 11 is pivotally carried at 26, the other end 16 of each track normally resting on the ground, and jack means (Fig. 2, not shown) connected between the stand and the track to cause the latter to pivot at 26 to raise said other ends 16 off the ground. Stop devices 35 on the tracks 11 are engaged by the wheels of a vehicle driven thereon, and are pivoted from a substantially flat to an upright position where they are locked by engagement of a stopping surface with the tracks 11. The latter are coupled together by tube connecting struts 31 depending from the tracks. An hydraulic ram is connected between each track and the stand, forming said jack means. In a further embodiment, Figs. 3 and 4 (not shown) a single hydraulic ram is used intermediate the two tracks and is connected between the stand structure and lugs at the midlength of the said tubular strut. A ratchet device associated with the ram prevents unintentional lowering of the ramp if the ram should fail. Each track is reinforced with tubular steel lattice work thereunder. In a modification, the jack means comprises a screw jack.
Patent GB-758132-A (GB)
Title: Improvements in or relating to electric immersion heaters
Inventor: BURTON RALPH CHARLES
IPC: H05B3/78
Filed: 1954-04-13
Abstract: 758,132. Electric immersion heaters. HOTPOINT ELECTRIC APPLIANCE CO., Ltd. April 12, 1955 [April 13, 1954], No. 10795/54. Class 39(3). Two immersion heating elements are selectively energisable for heating the lower and upper regions respectively of the contents of a vessel, and are under control of a single thermostat responsive to temperature in said upper region. In Fig. 2, a thermostat T mounted between the tubes of heating elements U, L, is adjustable primarily by rotation of a boss T<SP>1</SP> provided with an indicator and fingerpiece T<SP>3</SP>. A member T<SP>5</SP> for "fine " adjustment of the thermostat is rotatable by a switch knob S<SP>2</SP> by means of a pin and arm S4, T4, a switch S permitting either element L or element U to be energized or both elements to be switched off. Upon turning the switch knob from "high" to "low" elements U, L, are respectively disconnected and connected and the thermostat member T5 is rotated thus setting the thermostat say 5‹ F. higher than it was when the switch was in the "high" position. Cold water in the lower region of the container is thus able to attain a temperature approximately equal to the initial temperature of the hot upper region before the lower heating element L, is deenergised by actuation of the thermostat. In a similar manner, change of the switch from "low" to "high" position adjusts the thermostat to a setting 5‹ F. lower for the element U than for the element L. In a modification, Fig. 1, a switch S<SP>1</SP> of the push bar kind is operated by a sliding U-shaped member B carrying an arm A which engages a peg P for rotating a spring-loaded blade D engaging a temperature adjusting slot for "fine" adjustment of a thermostat T, H. Main adjustment of the thermostat is by means of a knob K connected by friction drive -to the blade D.
Patent GB-1201455-A (GB)
Title: Current limiting device
IPC: H01H87/00
Filed: 1969-02-28
Abstract: 1,201,455. Moulding plastic substances. MITSUBISHI DENKI K.K. 28 Feb., 1969 [29 Feb., 1968], No. 10850/69. Heading B5A. [Also in Divisions C1 and H1] A corrosion resistant moulded plastic sheath for holding sodium or potassium under pressure in a current limiting fuse (see Division H1) is formed from a thermosetting resin such as polymethylene diphenyloxide mixed with up to 40% of fibrous graphite. The moulding powder is prepared by heating the mixture to 500‹ C. for 30 mins. and applying a pressure of 500 kg/cm<SP>2</SP> followed by pulverizing. The sheath is supported externally by a pair of hollow metal cylinders 10, 12, Fig. 2, which are inserted in a mould 26 containing heated moulding powder 20 and compressed by a push block 30 to form a unitary structure. Spigot and socket ends 14, 16, Fig. 3 which may be tapered, overlap on moulding with an intermediate layer of the mould material 20. A central bore (22) for containing the sodium or potassium is finely machined.
Patent GB-1536933-A (GB)
Title: Array processors
IPC: G06F15/80
Filed: 1977-03-16
Abstract: 1536933 Data processing systems INTERNATIONAL COMPUTERS Ltd 16 March 1977 [18 March 1976] 10873/76 Heading G4A In an array processor, each processing element controlled by a common instruction stream comprises a multiplexer 15 common to the input and output of the element store 10, thus avoiding the need for separate driving circuits. Data inputs are selected by the multiplexer from a column data line, the accumulator register Q of the ALU and the output of the store. The multiplexer 15 provides fan-out to the store 10, data output 21 and ALU (via multiplexer 24). The processing element may be used to process an individual serial bit stream or it may be used in parallel with the other elements in the same row of an array, in which case addition carries are passed on to the next element in the row (if any). Multiplexer 24 serves to select as input data the output of any one of four neighbouring elements or the output of multiplexer 15 and XOR13 may be used to complement the input data. The contents of the Q register may be masked by those of an activity register A when writing into store 10. In this operation, multiplexer 15 selects either the output from the Q register or the output from the store 10 in dependence on the A bit on line 16 so that both non-masked new bits and (masked) fold bits are available on outputs 21 of a row of elements for parity checking.
Patent GB-178843-A (GB)
Title: Improvements in and relating to boilers for central heating and similar purposes
IPC: F24H1/32
Filed: 1922-04-18
Abstract: 178,843. Castiaux, R. April 16, 1921, [Convention date]. Sectional boilers.-A boiler for heating water or generating steam has a central fire-box 1, the gases from which pass by conduits 9 to a down-draft flue 4, or flues within the side members of sections constituting the boiler, to a collector 11. A sectional boiler is shown in Fig. 2, there being a water space encircling the fire-box and water walls 14, 15, at front and back. A grate 5 composed of tubes closed at one end is supported at the front on bars 5<1>. In the form shown in Fig. 4, the boiler is cylindrical and the ports 9 lead to an annular flue 4 and a collector 11 below. Fittings 8<2>. 12<1> connect the water spaces on each side of the annular flue.
Patent GB-417433-A (GB)
Title: Improvements in and relating to methods of reducing refractory oxides
IPC: C22B34/32
Filed: 1934-04-11
Abstract: 417,433. Extracting chromium and other refractory metals. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. April 11, 1934, No. 10938. Convention date, April 11, 1933. [Class 82 (i).] Oxides of chromium and other refractory metals are reduced by subjecting them to the action of nascent hydrogen in a closed air-evacuated chamber, the hydrogen being produced either from a metallic hydride such as calcium hydride or from a metal containing occluded hydrogen such as calcium, palladium or tantalum. An electric furnace 1 is filled with a metallic hydride or a metal 5 capable of occluding hydrogen and is provided with a porous refractory tube 4 connected at its upper end to means such as 6 for supplying measured quantities of oxide by a T-piece 11 which is also connected to a tube 12 having an extension 13. The means 6 comprises a receptacle 9 provided with a stop cock 8 in a pipe 7 and a stop cock 10 for admitting oxide to the tube 4. When calcium is used in the furnace 1, it is heated by the furnace, the stop cock 10 being closed, and hydrogen passed into the metal by a pipe 18, the metal when it is at a dull red heat absorbing hydrogen calcium hydride being formed. The supply of hydrogen is then cut off, and the heating continued, the tube 4 then being connected to a vacuum pump through the pipe 16. When the temperature in the tube has reached about 1000‹ C. and the vacuum about 100 microns, the cock 8 is closed and the cock 10 opened, refractory oxide passing into and moving down the tube 4 and being subjected to the nascent hydrogen evolved from the calcium hydride. The metal passes into a receptacle 17. The tube 4 may be made of nickel, provided with perforations to admit the nascent hydrogen evolved in the furnace or may be made of palladium or other metal capable of absorbing hydrogen, the metal filling in the furnace then being dispensed with. Alternatively the oxide and calcium hydride may be mixed together and the mixture heated in a closed air-evacuated container.
Patent GB-852151-A (GB)
Title: Separation of plutonium
IPC: G21C19/46
Filed: 1946-04-10
Abstract: 852,151. Separation of plutonium. OLSON, C. M. April 10, 1946 [April 4, 1945], No. 11080/46. Class 39(4). In a process for the separation of plutonium from a nitric acid solution of neutron-irradiated uranium, sufficient formic acid is added to the solution to reduce the plutonium and destroy excess nitric acid, before separating the plutonium. Sulphuric acid or phosphoric acid may also be added to the solution. Preferably the temperature of the solution is 75-90‹C. The concentration of uranyl nitrate in the solution may be from 20 to 70 %, more formic acid being required when the solution is less concentrated. Plutonium may be separated either (a) by adsorption on columbric oxide or on formaldehyde-sulphonated phenol resin, followed by elution with sodium bisulphate solution or (b) by precipitation with bismuth phosphate as carrier as described in Specification 798,685.