baber/WOPTO huggingface dataset:
Patent GB-641583-A (GB)
Title: Improvements in or relating to permanent mould casting
IPC: B22C3/00
Filed: 1948-07-28
Abstract: In casting brass or other copper-zinc alloy in a die, this is coated with a metal oxide reducible to a lower oxide by the molten alloy to prevent adherence of zinc oxide to the die face. Examples of such oxides are manganese dioxide or sesquioxide, trimanganese tetroxide, ferric oxide and triferritetroxide, which may be used singly or mixed with inert diluents.  The coating may be applied in water by spraying or dipping.  The suspension may also contain dispersing agents, e.g. sulphite cellulose pitch, sulphated long-chain fatty alcohols or alkyl-naphthalene-sulphonates and a lubricant, e.g. graphite.  A suitable dressing comprises one part of manganese dioxide to 10 parts of water to which 0.25 to 0.3 parts of a 10 per cent alcoholic solution of tannic acid has been added.  After casting, the die may be cooled by dipping in water, to under 250 DEG  C., any adhering zinc oxide or metallic particles being removed by brushing and a fresh coating may be sprayed on.  Brasses containing up to 3 per cent of lead may be thus cast.
Patent GB-848596-A (GB)
Title: Extrusion device for plastic material
IPC: B29B9/06
Filed: 1958-06-24
Abstract: 848,596. Extrusion machines. PARRELBIRMINGHAM CO. Inc. June 24, 1958 [July 29, 1957], No. 20157/58. Class 87(2). An extrusion machine has a screw 11, perforated plate 22, a hollow shaft 30 carrying knives 38 to cut the material extruded through the perforated plate 22 and, mounted with the hollow shaft, a rod 40 having its end engaging the perforated plate 22 to support it against the extrusion pressure. The hollow shaft 30 and knives 38 are rotated by a motor 32 through a belt 34 and pulleys 33, 35. The cylinder end (see Fig. 1 not shown) may be pivoted clear of the machine to allow access to the plate 22 by means of a clamping ring 17 and cylinder 47.
Patent GB-614269-A (GB)
Title: Improvements in method and apparatus for rolling a continuous sheet of plastic material with a longitudinal bead superimposed thereon
IPC: B29C48/12
Filed: 1946-07-08
Abstract: 614,269. Rolling plastic material. LESAVOY, I. L. July 8, 1946. No. 20351. [Class 87 (ii)] A continuous sheet with beads is produced by passing a sheet 20 and beads 23, 24 between a pair of rollers 17, 18 and fusing them together by heat. The heating means is contained in roller 17 and comprises two circular electric heating elements opposite grooves 29, 30 which accommodate the beads 23, 24 and connected in parallel to an armature ring 37. The heating elements are contained in a cage formed of tubes. The beads are prefabricated or produced by an extrusion machine 25 and pass between feed rollers 22 through a guide bar 26 and the liquid 19 from which the sheet 20 is produced. The guide bar 26 may be replaced by another guide bar to fit differently shaped beads. A modification is shown having an undercut bead.
Patent GB-872516-A (GB)
Title: Improvements relating to games
IPC: A63F3/00
Filed: 1957-07-02
Abstract: 872,516. Board games. HILL, R. G. P. Oct. 2, 1957 [July. ,2, 1956], No. 20480/56. Class 132(2). A race game is played on, preferably, three boards of which one is marked as a race track having lanes divided into varying numbers of spaces and the other two comprise "playing" and "account" areas identically marked as in Fig. 2, the distance moved by counters &c., along the track being determined by numbered cards which are placed in the columns of the playing area. After the first race the cards in the first two columns of the playing area are removed and the positions of the counters at the start of the next are determined by the remaining cards. Arrangements are provided for the display of odds and bets.
Patent GB-845503-A (GB)
Title: Machine for separating laminar articles sequentially from a stack thereof
Inventor: SMEDLEY HAROLD
IPC: A43D8/46
Filed: 1955-07-15
Abstract: 845,503. Feeding sheets. BRITISH BOOT, SHOE & ALLIED TRADES RESEARCH ASSOCIATION. July 16, 1956 [July 15, 1955], No. 20506/55. Class 100(1) In apparatus for separating sheet-like articles, such as shoe soles, from a stack the top of which is kept at a substantially constant level, the support 3 for the stack is guided by rollers 4 for vertical movement along the frame of the apparatus, and is urged constantly upward by a sprocket chain 9 which passes over a wheel 10 and is secured to a spring 11 anchored to the base 1. The wheel 10 and a spur wheel 13 are secured on a shaft 12, and the wheel 13 meshes with a pinion 14 secured on a shaft 15 which carries a brake drum 16 enclosed by a cover 25. A brake shoe 17 is applied to the drum 16 by a lever 20 acted upon by a spring 19, the lever resting on a cam 21 mounted on a shaft 23 which can be rotated by a lever 22 to release the brake from the drum, and thus allow the support 3 to be raised by the spring 11. This brake release lever 22 is acted upon by a movable part of the sheet &c. separator means. The sheet &c. separator means comprises a suction jack cylinder 27, supported by a fixed pillar 26, connected to a motor-driven vacuum pump 54. A tubular extension 30 secured to the base of the cylinder 27 has slidable therein a sleeve 31 carrying a hollow boss 32 from which extends a tubular arm 33 leading to an air-inlet valve 34 and suction cup 35. The sleeve 31, which is urged downwardly of the tube 30 by a spring, is provided with an L-shaped slot 36 engaged by a set-screw 37 on the tube 30: this slot limits the downward movement of the sleeve 31 and the sucker 35, and guides the sleeve for vertical and rotary movements. The sleeve 31 also has a double-start helical slot engaged by pins 46 on the end of a hollow rod secured to a piston within the cylinder 27 : these pins 46 extend through vertical slots in the tube 30. When the cylinder 27 is evacuated, suction is first established at the sucker 35 which lifts up and is sealed by, the top shoe sole of the pile. The piston in the cylinder 27 now rises against the action of a spring, and the pins 46 first raise the sleeve 31 and sucker 35 vertically until the horizontal part of the slot 36 coincides with the pin 37, and then the sleeve and sucker are rotated so that the sole is carried away from the pile to feed rollers. In the latter position a trip 49 on the air-inlet valve 34 strikes an arm 50 (not shown) whereby the sole is released by the sucker 35. Now that air can pass through to the cylinder 27, the piston therein is urged downwardly by its spring, and the sucker 35 swings back and is lowered towards the pile of soles on the support 3. In this position, the boss 32 engages a stop 53 on the lever 22 to release the brake 17, so that the support 3 is raised by the spring 11 to bring the top sole into engagement with the sucker 35.
Patent GB-357662-A (GB)
Title: Improvements in combination radio receiver and phonograph
IPC: H04B1/20
Filed: 1930-07-07
Abstract: 357,662. Wireless receiving systems. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Assignees of Cassell, J. L. ; Greystone Hotel, New York, U.S.A.) July 7, 1930, No. 20515. Convention date, July 17, 1929. [Class 40 (v).] A wireless receiver and phonograph are so combined that audio-frequency signals from both the pick-up and the receiver may be simultaneously impressed on the receiver low frequency amplifier at varying degrees of amplitude. Wireless signals to the receiver may be obtained either from the wired input 6 or aerial 5, Fig. 1, a potentiometer 30 providing the wireless volume control which is arranged so that the wireless input may be shortcircuited by the slider 31. The phonographic input from the pick-up coil 24 is shunted by a tone-corrector 26, 27 and volume control potentiometer 25, so that when the latter is short-circuited by the slider 29 the phonograph is effectively disconnected. As no connections are broken in changing over the transformer 13 may be designed to match the output impedance of the detector to the amplifier. The two potentiometers may be combined in a single unit with the aerial-line switch 4 as shown in Fig. 3. The knob 32 actuates the slider 31 on resistance 30 and, when the pins 38 are engaged in holes in the knob 33, slider 29 on resistance 25 are also actuated; alternatively, separate control is obtained by pulling out the knob 36 to disengage the pins 38, the shaft being grooved at 39 for this purpose. The aerial-line switch is shown at 40.
Patent GB-1554226-A (GB)
Title: Burners
IPC: F23D11/10
Filed: 1976-05-18
Abstract: Liquid fuel and pressurised primary air are introduced into a pipe (11), in which a mixer (13) is arranged, which has no moving parts. The fuel is finely distributed in the primary air by the mixer. The mist thus formed leaves the pipe (11) through a nozzle (12) as a spray jet into a combustion chamber (25). The fuel is combusted in the combustion chamber. The secondary air (27) necessary for complete combustion is drawn into the combustion chamber (25) by the spray jet. By means of a valve (17), the supply quantity of the fuel can be varied, as a result of which the heat yield of the burner is adjustable. Additionally, the primary air quantity is also adjustable, which extends the adjustability range. The burner is in particular suitable for small capacities (2 to 20 kW), e.g. for domestic use. <IMAGE>
Patent GB-535650-A (GB)
Title: Method of producing mixtures for the rubber and related industries
IPC: C08K5/01
Filed: 1939-07-14
Abstract: 535,650. Rubber-like mixtures. NAFTOLENGES. ZUR VERWERTUNG DER ROSTLERMEHNER'SCHEN VERFAHREN. July 14, 1939, No. 20540. Convention date, July 15, 1938. [Class 70] The neutral constituents boiling between 160‹ and 380‹C., e.g. between about 200‹ and 380‹ C., at 12 millimetres, and soluble in concentrated sulphuric acid to the extent of at least 30 per cent., of the waste products obtained in refining mineral oils with selective solvents are used as fillers and part substitutes in rubber compositions. The products are obtained by neutralizing with lime or magnesium oxide the residue remaining after distilling off the solvent and fractionally distilling to obtain the desired fraction. The hydrocarbons thus obtained may be further fractionated if desired. Examples are given in which furfurol and a mixture of sulphur dioxide and benzene are the selective solvents. The waste products from the acid refining of mineral oil known as acid tars may be added to the solvent extraction residues and the two worked up together by neutralization and fractionation. Specifications 497,402 and 483,006 are referred to.
Patent GB-748713-A (GB)
Title: Improvements relating to rectifier sets for supplying intermittent overload currents
IPC: G05F1/62
Filed: 1953-07-24
Abstract: 748,713. Rectifying. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd., and WHEATLEY, J. D. July 9, 1954 [July 24, 1953], No. 20570/53. Classes 38 (2) and 38 (4). An arrangement for supplying D.C. to a load 9 from an A.C. source 1 comprises a main rectifier set which supplies D.C. at constant voltage over a predetermined current range, and an auxiliary rectifier 12 in parallel which has a no-load output voltage below the said constant voltage, which auxiliary rectifier 12 supplies overload current required, e.g. for starting aircraft engines, when the total load current exceeds the predetermined range. The output voltage of the rectifier set may be maintained constant by the provision of a main rectifier 14 in series with a boost rectifier 2 whose voltage is varied by the action of a discriminator 8 which senses the output voltage at 10. During normal operation tube load 9 is supplied wholly from the combination of rectifiers 2, 14 but when the current exceeds the predetermined range its output voltage drops and current is supplied by rectifier 12 to an increasing extent, because the output characteristic of the main rectifier set is much steeper for overloads than that of rectifier 12 for all loads, the output voltages dropping much less than if the overload rectifier were absent.
Patent GB-721922-A (GB)
Title: Improvements relating to package-supports for the wet treatment of yarn or like packages
IPC: D06B23/04
Filed: 1952-08-15
Abstract: A package support for the wet treatment <PICT:0721922/IV (c)/1> <PICT:0721922/IV (c)/2> of yarn consists of a conical or cylindrical metal shell 1 having an external surface defined by a rectilinear generating line, the shell being perforated with holes 4 arranged in longitudinal rows and formed in countersunk depressions 5 projecting into the interior of the shell and each depression being separated from adjacent depressions by parts 6 and 7 which do not project beyond the generating line of the outer surface of the shell and are formed with rounded-off parts sloping towards the depressions and holes: the spacing between adjacent holes, the depth of the depressions and the diameter thereof is such that the portions between adjacent holes provide a punctiform support for the package. The holes and depressions may be oval or polygonal.
Patent GB-141403-A (GB)
Title: Improvements in or relating to furnaces
IPC: B21J17/00
Filed: 1918-12-12
Abstract: 141,403. Fuller, H., and Bedford, R. A. Dec. 12, 1918. Metal-heating furnaces; Lids; linings. -In a furnace for use in the salt-bath treatment of steel, of the kind having in opposite walls heating-flues into which burners deliver, the flues are faced by metal plates h, bent inwards at the bottom to prevent percolation of the molten salt into the flues. The inwa.rdly-bent ends k are embedded, as shown, in the refractory material forming the floor of the furnace. The burners deliver from both ends of the furnace into horizontal flues g, which are connected by vertical passages m for the escape of the products of combustion. The plates hare supported by longitudinal angle-irons n at the top, and bv vertical columns p of T-section, the webs of which are perforated to allow the passage of the heating gases. The furnace lid is formed of sections with rabbeted edges, and provided with handles.
Patent GB-1089390-A (GB)
Title: Spin-dyed polyamide filaments
IPC: C08J3/205
Filed: 1966-05-10
Abstract: Polyamides are pigmented before melt-spinning by adding a pigment suspended in butyrolactam.  Pigments specified include inorganic pigments, e.g. cadmium yellow and brown iron oxide and organic pigments. 60-70% of it may be dispersed in the lactam at room temperature using a ball mill, roller mill or sand mill.  The suspension may also contain 0.1-0.2% of dinaphthyl methane ulphorate and 1-2% of water.  It may be passed through a screen before incorporation in the polyamide by addition to the monomers or to the partly or completely finished polymer. The polyamide may be derived from an aminocarboxylic acid or lactam, e.g. caprolactam, or from a dicarboxylic acid and diamine.  Sufficient dispersion may be added to introduce 0.01-5% pigment.  The pigmented polymer may be shredded or granulated and leached with water before spinning.
Patent GB-1360722-A (GB)
Title: Single-row ball bearings
IPC: F16C33/60
Filed: 1972-05-04
Abstract: 1360722 Bearings HOESCH AG 4May 1972 [4 May 1971] 20782/72 Heading F2A A single-row angular contact ball bearing comprises shoulders 14, 24 disposed on opposite sides of the plane of the ball running circle and provided with unhardened tracks 11, 21 normally spaced from the surfaces of the balls and having frusto-conical surfaces. The tracks are engageable by the balls when the forces acting on the bearing are such as to cause separation of the races. One or both of the bearing races may be axially divided such that the ball track is formed on a first ring part and the unhardened track on a second ring part. The said second ring part may be divided into segments. One of the said ring parts may have detent teeth.
Patent GB-1511304-A (GB)
Title: Method and apparatus for electrostatically applying protective layers to a workpiece
IPC: B05B5/10
Filed: 1975-05-16
Abstract: 1511304 Automatic control of spray coating ROBERT BOSCH GmbH 16 May 1975 [31 Oct 1974] 20783/75 Heading G3R [Also in Division B2] The voltage and current applied to the disc 35 of a spray coating apparatus are controlled in dependence on the spacing of the workpiece from the disc. The control circuit includes a transistor 6, shown schematically with current and voltage regulating potentiometers 7, 8. The transistor is connected to the primary winding 16 of a transformer across which is connected a short-circuiting relay 33. The secondary winding 17 is connected to the transistor via a feed-back loop 28-29 and resistor 27. The voltage and current applied to the disc are successively kept constant as the spacing of disc and workpieces decreases until finally the supply is disconnected by the relay 33.
Patent GB-684325-A (GB)
Title: Improvements relating to solid fuel combustion apparatus
Inventor: LOCK ALBERT JAMES
IPC: F23H11/22
Filed: 1949-08-10
Abstract: 684,325. Feeding solid-fuel furnaces. MARTIN & SONS, Ltd., C.W. Aug. 10, 1950 [Aug. 10, 1949], No. 20846/49.. Class 51 (i). A solid-fuel furnace is provided with means for injecting fluid under pressure into a layer of fuel charged upon a travelling grate so as to cause a displacement of the fuel which increases the exposed surface thereof, which means comprises one or more fluid discharge tubes disposed above the grate so as to be buried in or under the layer of fuel charged upon the grate. As shown in Fig. 1, a hopper 10 has an adjustable partition 11, coal being supplied to a grate 2 from compartment 12 of the hopper and sawdust from compartment 13. Steam discharge tubes 4 are laid longitudinally just above the grate and are spaced apart laterally, so-that jets of steam discharged from the tubes 4 produce furrows in the layer of sawdust, so as to break the "blanket" which would otherwise overlay the coal, thus facilitating combustion.
Patent GB-580544-A (GB)
Title: Improvements relating to liquid pumps
IPC: F04B1/20
Filed: 1943-12-14
Abstract: 580,544. Rotating cylinder pumps. HILLS, W. D., and CROUCHER, A. H. Dec. 14, 1943, No. 20248. [Class 102 (i)] ] In a rotating cylinder pump the cylinder bores 2 are inclined to the axis of rotation and the pistons 3 engage a conical swerve ring 4 which is suspended at 24 within the pump casing so that it can be rocked in a plane normal to the axis of rotation. The pistons 3 may be constructed as described in Specification 580,543, [Group XXVI], and their outward movement under centrifugal force may be assisted by springs. In the form shown in Fig. 1, the cylinder bores 2 terminate in radial passages 10 of rectangular section with rounded corners, these passages being sealed on the outside by a ring 12, and on the inside they communicate with arcuate high and low pressure ports 13, 14. Liquid enters a passage 7a, circulates around the pump body 1 to cool it, and passes through short spiral passages and an inlet passage 7 to the ports 14. The ports 13 lead to an outlet passage 8 fitted with. a spring-controlled relief valve 17 which permits discharge into the pump casing 11. Noise due to resonance effects built up on the swerve ring 4 by the pistons' 3 may be reduced by providing a rubber ring bonded to inner and outer conical members forming 'the bearing track of the ring. The swerve ring 4 has a hollow cylindrical extension 34 carried by a holder 37 which is pivoted on the pin 24 and which has a tongue 41 slidable between guide plates 42, 43. The resultant of the piston thrusts on the swerve ring assembly passes through, or close to, the suspension bearing 32, and the component of this resultant thrust which is normal to the axis of rotation tends to move the swerve ring to its central position against the action of a leaf spring 33, Fig. 12. The outer spring leaf 46 is secured at one end only and is engaged by a screw 47 which can adjust the stalling pressure of the pump. Opposite the spring 33 a pad 49 on the holder 37 is engaged by a cylindrical cam 48 which is rotatable by a handle 50 to limit the liquid flow from maximum to zero. Air is removed from the casing by means of a bleed screw 58. The outlet passage 8 may be connected by an external pipe to the back of a cylinder 62 containing a spring-pressed piston 63 similar to the pistons 3, and pushing on the holder 37 against the action of the spring 33, so as to provide pressure control as well as torque control, of the delivery. This piston 63 may be replaced by a bellows.
Patent GB-1181545-A (GB)
Title: A Method for Purification of Organic Polyisocyanates
IPC: B01D3/34
Filed: 1967-05-05
Abstract: 1,181,545. Purifying polyisocyanates. TAKEDA YAKUHIM KOGYO K.K. 5 May, 1967 [5 May, 1966], No. 20980/67. Heading C2C. Crude polyisocyanates (I) which have been prepared by phosgenating the corresponding polyamines are purified by heating with an inert gas in a fractionation column under such conditions that the pressure at the top of the column is 5-200 mm Hg, and the feed rate of the inert gas is given by (R)(P)(P B -P x /P x )(#) mol./hr., wherein P x E # /P B  = 0À05-0À50, E #  = 0À3-1À0 and # = 0À2-20, R = (x p -y f )/(x p -x f ) ¸ [1-(x p -y f )/(x p -x f )], and P = (Fx j -Wx w )/ xp mol./hr., where PB is the operating pressure at the bottom of the column, P x  is the equilibrium vapour pressure of the residue at the bottom of the column at the operating temperature, x p  is the molar concentration of light components (II) in the reflux liquid (mol fraction), x f  is the molar concentration of II in I (mol fraction), y f  is the molar concentration of II in the equilibrium vapour of I in a feed tray at the operating temperature (mol fraction), F is the feed rate of I (mol./hr.), W is the bottom product rate (mol./hr.), x w  is the molar concentration of II in the residue (mol fraction), # is a parameter determined by the properties of I and the construction of the fractionation apparatus and E #  is the vaporization efficiency. Specified I are xylene (α,α<SP>1</SP>), hexamethylene, diphenylmethane (4,4<SP>1</SP>) and tolylene diisocyanates and toluene-2,4,6-triisocyanate.
Patent GB-1460435-A (GB)
Title: Light control means
IPC: H05B37/02
Filed: 1973-05-03
Abstract: 1460435 Street lighting systems NSF CONTROLS Ltd 2 May 1974 [3 May 1973] 21023/73 Heading H2H A system for controlling street lighting according to the presence or absence of daylight comprises a control element 10 which includes a heating element 1, a bimetallic disc 2 and a switch 5, the heating element 1 being connected in series with a photo-resistive cell 2 and a street light 4 in series with the switch 5, the two series circuits being connected in parallel across an A.C. supply. During daylight conditions the cell 2 assumes its low resistance value thus permitting a high current to flow in the element 1 causing the disc 3 to distort to open the switch 5 so de-energizing the light 4. During darkness the cell 2 reverts to a high resistance condition whereupon the element 1 cools down, the disc 3 assumes its normal condition, the switch 5 closes and the light 4 is energized.
Patent GB-925839-A (GB)
Title: Improvements in and relating to boxes, trays and like containers
Inventor: WHITE HENRY LACHLAN
IPC: B65D51/24
Filed: 1960-06-16
Abstract: 925,839. Boxes. NEWEY BROS. Ltd. June 5, 1961 [June 16, 1960], No. 21133/60. Class 18.  In a box formed as a unitary moulding of synthetic resinous material and having a base 23 and an upstanding peripheral flange 20 the flange is joined to the base between the upper and lower edges of the flange, the upper part of the flange forming a retaining wall for the box. The level of the base is slightly raised above that of the lower edge of the flange and the curved marginal portions 24 are joined to the flange. The lid may be removable or hinged, and may carry a pin cushion. In a further embodiment the marginal portions of the base are curved upwards around its whole periphery and meet the flange at a slight angle. The box may be made of e.g. polystyrene, polymethyl methacrylate, or polyethylene.