baber/WOPTO huggingface dataset:
Patent GB-621279-A (GB)
Title: Improvements in dough mixers
IPC: A21C1/14
Filed: 1947-02-14
Abstract: 621,279. Cooling mixing - machines. THORNTON, A. A. (Quik-Seal, Inc.). Feb. 14, 1947, No. 4319. [Class 86] The wall of a doughmixing machine is cooled by cooling liquid circulated through passages formed by semicylindrical, overlapping strips secured at one longitudinal edge to the mixer wall, and at the other to the next adjacent strip. The mixer wall 6 has welded to it a series of semi-cylindrical strips 11 in overlapping relation, the strips being welded together at 15 to form a series of substantially semi-cylindrical passages. These passages are interconnected by holes 16 cut in adjacent strips at alternate ends so that a circuitous passage is formed. The ends of the strips 11 are sealed by the side walls 17 of the mixer. Reference has been directed by the Comptroller to Specification 643,172.
Patent GB-632950-A (GB)
Title: Improvements relating to fluorescent electric discharge lamps
IPC: H01J61/32
Filed: 1947-02-14
Abstract: 632,950. Discharge lamps. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. Feb. 14, 1947, No. 4383. [Class 39 (i)]' A fluorescent lamp with a low-pressure mercury vapour filling, together with the usual starting gas comprises a tube with a substantially straight middle portion 1 and two adjoining capped portions 2 united to the middle portion 1 by acute angled bends and lying on opposite sides thereof, and the bending is carried out after the interior of the tube has been coated with fluorescent material and before exhaustion and filling. The portions 2 may or may not have further bends in their length, e.g. as shown they are bent away from the middle portion 1 at the capped ends. The portions of the tube may or may not all lie in the same plane. The caps 4 engage diametrically opposite sockets on a circular or semicircular support (not shown). The tube is bent by heating it with a blow pipe or by enclosing it in a heating wire with asbestos insulation and bending when the material of the envelope is soft enough.
Patent GB-403829-A (GB)
Title: Improvements in or relating to the electrical precipitation of suspended material from gases
IPC: B03C3/66
Filed: 1933-02-14
Abstract: <PICT:0403829/III/1> <PICT:0403829/III/2> <PICT:0403829/III/3> In a process for the electrical treatment of suspended material in gases, a unidirectional potential approximately equal to the minimum value required for ionisation but below the arcing potential is continually maintained between the electrodes and superimposed thereon are sharp high potential impulses of steep wave front of the same direction as the continually maintained potential, the potential at each impulse being considerably greater, e.g. at least 50 per cent greater, than the unidirectional potential.  The duration of each impulse is also only a fraction of the interval between successive impulses.  A suitable method of obtaining the potential impulses is by the use of a system of condensers and spark gap means acting as a voltage doubling circuit.  According to the arrangement shown in Fig. 1, the electrical precipitation system 1, consisting of discharge and collecting electrodes of known types is supplied with a unidirectional potential by means of a transformer 5 and a mechanical rectifier 7.  Chokes 33 and 34 are included in this circuit to prevent high frequency oscillations developed by the impulse generating means from reaching the power supply, and resistance 35 is included to stabilise the load.  The impulse generating means comprises two condensers 15 and 16 which are arranged to be charged in parallel from the above supply of unidirectional potential and to be discharged in series through the electrical precipitator when the spark-gap 28 breaks down. Resistances 24 and 26 are connected between the high potential line and condenser 15 and between condenser 16 and earth.  When the spark-gap 28 breaks down, the potential impulse generated is of steep wave front, and is prevented by the impedances 24, 26, 33, 34 and 35 from reaching the rectifier and transformer. The resistances 24 and 26 also regulate the rate of charging of the condensers.  Each shaft potential impulse produces a copious corona discharge at the discharge electrode 4, but is of sufficiently short duration, e.g. of the order of 10-<5> seconds or less, to prevent continuous arcing.  In the arrangement shown in Fig. 2, the source of unidirectional potential is a transformer 37 and rectifier 38 while the impulse generating means comprises a separate transformer 42, and rectifier 43 and condenser 48, spark-gap 46 and impedances 51 and 52, Fig. 3, shows an arrangement similar to Fig. 1 in which three condensers 55, 56 and 57 are charged in parallel and discharged in series through spark-gaps 58 and 59.  The impulse potential obtained is approximately three times the potential at which the individual condensers are charged, thus giving a greater ratio of impulse potential to line potential.
Patent GB-322133-A (GB)
Title: Improvements in or relating to the manufacture of plastic masses
IPC: C08L91/00
Filed: 1929-02-11
Abstract: 322,133. B³nz, R. Feb. 11, 1929. Fats and fatty oils,- sulphuretted.-Linseed oil is treated with sulphur chloride in excess of 35 per cent and at the same time a mineral substance such as barytes, sand, &c. is stirred in. The mixture is poured into moulds to solidify and may be used for grinding discs, floor coverings, artificial stone, &c.
Patent GB-809051-A (GB)
Title: Plastic shoe unit
IPC: A43B3/24
Filed: 1957-02-11
Abstract: 809,051. Boots &c. MULLER, F. A. Feb. 11, 1957, No. 4568/57. Class 17(2) A moulded plastic shoe unit 10 preferably of a synthetic polymer composition comprises a raised heel 16, a counter portion 17, a forepart tread portion 18, an arched shank portion 19, and a flange 20. The counter is shaped to fit the concave and convex parts of the heel of the foot The heel is preferably provided with a well 24 which may be filled with a filler body 29 such as cork, wood, moulded plastic, soft or sponge rubber, or a settable material may be poured in. Various types of uppers may be attached to the unit e.g. by perofrating the flange 20 and attaching the upper by laces. Shoes to fit snugly deformed feet may be prepared by using a mould prepared from a plaster cast of the feet.
Patent GB-989624-A (GB)
Title: Improvements in or relating to methods of metallising holes
Inventor: YOUNG LAWRENCE JOHN
IPC: H05K3/40
Filed: 1961-02-07
Abstract: A hole in a board, such as a printed circuit board, which is to be metallized, is aligned with a hole of another board, and a flexible metallic paste is introduced into the hole in the other board and then transferred to the hole to be coated so as to coat at least a substantial portion of the wall thereof.  The boards may be slightly spaced apart so that a coating is formed on the surface around the rim of the coated hole.  Suitable metallic pastes comprise finely divided silver or silver-coated copper dispersed in an organic vehicle, e.g. a solution of rosin and ethyl cellulose.  The coated board may finally be baked to drive off organic materials.
Patent GB-585523-A (GB)
Title: Improvements in fluid-flow meters and indicators
IPC: G01F1/28
Filed: 1945-02-26
Abstract: 585,523. Flow meters or indicators. STOKOE, C. L. Feb. 26, 1945, No. 4716. [Class 69 (i)] A fluid meter or indicator comprises a case a containing a spindle rendered fluid tight by means of resilient washers g and h, the spindle being rotated by the pressure of the fluid flow against a flap q. One side of the metering chamber is formed by a resiliently loaded plate p whilst a deflector placed adjacent the outlet d constraints the direction of flow past the flap. The flow indicating capacity of the meter can be varied by varying the eccentricity by means of a bush o of the chamber. The tip of the flap is tapered, the tapering facing the impinging flow in order to obtain a stream line flow, whilst a by-pass s connects the chamber behind the side plate to the low pressure side of the meter in order to improve the resilience of the plate. Specifications 240,262, [Class 69 (i)], and 447,895 are referred to.
Patent GB-229696-A (GB)
Title: Improvements in or relating to drag arrangements for spinning, twisting and like machines
IPC: D01H7/44
Filed: 1924-05-24
Abstract: 229,696. Schneider, H. Feb. 5, 1924, [Convention date]. Spindle apparatus; doffing- arrangements.-The bobbins of flyer spinning, twisting, and like machines are raised from their drag washers, to reduce the drag when starting the frame or when winding a few turns on the empty bobbins during the doffing operations, by means of a member a<1>, which is provided, if desired, with an antifriction bowl and is raised by an incline b' on a movable bar c<1> or by a lever and cam. The bar may be moved by electromagnets and the switches therefor controlled by the doffing-machanism. The member a<1> may act axially of the bobbin, the dead spindle t being bored so that a pin engages the cap v of the bobbin tube u.
Patent GB-661471-A (GB)
Title: Improvements in electromagnetic relays
IPC: H01H50/40
Filed: 1949-02-22
Abstract: 661,471. Electromagnetic relays. BRITISH TABULATING MACHINE CO., Ltd. Feb. 22, 1949. [March 3, 1948] No. 4792/49. Class 38 (v). [Also in Group XXXV] In order to minimise the mutual induction between the coils of a dual coil electromagnetic relay, the core C of the electromagnet is E- shaped with an armature A pivoted at the end of the limb K and with an attracting coil P and holding coil H mounted at opposite ends of the limbs L, M. Owing to the disposition of the coils P, H, the flux produced by the coil P does not link with that of coil H and, conversely, the flux produced by the latter does not link up with that of the former. In a, modification, a non-magnetic piece B, Fig. 5 (not shown) is inserted in the central limb L so as to reduce further the effect of the coil P on the coil H.
Patent GB-138723-A (GB)
Title: Improvements relating to the production of tone currents for telephone circuits
IPC: H02K19/24
Filed: 1919-02-27
Abstract: 138,723. Siemens Bros. & Co., and Grinsted, W. H. Feb. 27, 1919. Drawings to Specification. Exchange systems.-Tone currents for signalling the busy condition of lines &c. are generated by machines provided for other purposes, for example for producing ringing currents or for driving current-interrupters used in connexion with automatic switches. The tone currents are generated in windings of shunt-excited auxiliary poles with narrow tips, in which the flux is subject to a relatively high-frequency variation owing to the passage of the armature teeth or slots. The tone windings may be in series with the main field windings and are connected to the tone circuit through a transformer or condenser. According to the Provisional Specification, the tone windings may be on the tips of the main polepieces instead of on separate poles.
Patent GB-650892-A (GB)
Title: Improvements in or relating to means for controlling the power-factor of induction heaters and similar appliances
IPC: H05B6/08
Filed: 1948-02-20
Abstract: 650,892. Automatic control systems, power factor; supply systems for induction furnaces. BIRLEC, Ltd., and MAY, E. Feb. 20, 1948, No. 4997. [Class 38 (iv)] The power factor of a H.F. induction furnace, having a heating coil 1 supplied by an alternator is controlled by varying the speed of the alternator in accordance with variations of the power factor from unity so as to tend to maintain the power factor at unity. Deviations of the power factor are detected by a device 5 operating a servo device or relay 6 which controls the speed of a motor 4 driving the alternator 3. For further control, condensers in parallel with the heating coil may be automatically or manually cut into or out of circuit. In a further embodiment employing a constant speed motor (Fig. 2, not shown), variation of speed of the alternator may be effected by speed-change gear in the motor drive.
Patent GB-793659-A (GB)
Title: Improvements in thermostatic control
Inventor: SHIVERS PAUL FRANKLIN
IPC: H01H37/52
Filed: 1956-02-17
Abstract: 793,659. Thermal switches. ROBERTSHAW-FULTON CONTROLS CO. Feb. 17, 1956 [June 23, 1955], No. 5021/56. Class 38 (5). In a thermostatic switching device for con. trolling room temperature, a U-shaped supporting member 30 is pivoted at 20 and carries a mercury switch 36, and a second supporting member 18 disposed beneath the member 30 and also pivoted at 20 carries a bimetal element 50 which substantially surrounds the mercury tube. The free end of the bimetal strip is linked to an arm 38 on the support 30 by a member 44 so that on increase in temperature the mercury switch is tilted anticlockwise to open the contacts. The support 18 may be tilted about the pivot 20 by a manual adjustment lever 62 pivoted at 64 and co-operating with arms 60 so as to vary the initial angle of tilt of the mercury switch and hence the operating temperature. The lever 62 indicates the operating temperature on a scale 68. A heating element 58 is disposed adjacent the bimetal strip to accelerate its actuation and so anticipate the rise in temperature. Terminal arrangements are such as to include or exclude the heater. In a modification (Fig. 4, not shown), the support 18 is tilted by a cam on the lever 62, the cam being provided with a deep step which so tilts the mercury switch that an excessive reduction in temperature is required to restore it, i.e. the arrangement effectively provides an " off " position. In a further modification (Fig. 5, not shown), the fixed end of the bimetal is secured to the base and the support 30 is pivoted on a pair of pivots on the support 18. Movement of the support 18 varies the position of these pivots and so alters the initial tilting of the mercury tube.
Patent GB-519971-A (GB)
Title: Improvements relating to indicating tabs for card indexes, filing systems and the like
IPC: B42F19/00
Filed: 1939-02-16
Abstract: 519,971. Index tabs. NAAMLOOZE VENNOOTSCHAP KANTOORBOEKENFABRIEK ATLANTA VOORHEEN F. F. BEUKEMA. Feb. 16, 1939, No. 5066. Convention date, Dec. 1, 1938. [Class 16] An index tab has two surfaces 8, 9, Fig. 3, substantially perpendicular to each other, surface 8 lying in the plane of the card or parallel thereto. The tab may be attached to or formed integral with the card. The tab may consist of transparent material 15 to enclose the text, and has vertical members 10 with tongues 11, 12. The material may be bent T-shape, Fig. 4, so that the index is visible from front and rear. Where opaque material is used, Fig. 5, one or two windows 16 are formed, and the lower part 17 is made resilient to damp on to the card, or has holes for rivets. The tab may be a plain bent-section pasted on the card or, as shown in Fig. 8, formed integral therewith. The tabs are to be spaced along the length of the cards.
Patent GB-682840-A (GB)
Title: Improvements in or relating to control valves for fluid systems, for example, steam heating and refrigerating systems
Inventor: NOLCKEN WOLDEMAR GEORGE
IPC: F25B41/04
Filed: 1951-03-02
Abstract: 682,840. Refrigerating. PRESSED STEEL CO., Ltd. March 2, 1951, No. 5074/51. Class 29 [Also in Group XXIX] A control valve for fluid systems of the kind in which the flow of a condensible vapour to, and by displacement a corresponding flow of condensate from, a condenser 1, Fig. 1, is controlled by a body of condensate contained in an open vessel 8 towards which depend the inlet and outlet pipes 9, 10 respectively of said condenser, wherein the relative position of the vessel and the pipes within a hermetically sealed valve housing 4 is determined by magnetic or electro-magnetic means. Pipes 2, 3 carrying vapour and condensate respectively are connected to the housing 4 and may be connected to a refrigerant evaporator of the kind described in Specification 643,548, or to steam and water lines when the condenser is used in a steam plant. The vessel 8 is mounted on a balanced beam 6 pivoted about an axis 5 and magnetised, the housing 4 being of non- magnetic material. Magnetic poles 7 are provided externally of the housing and rotatable about the axis 5 to carry with them the beam 6, whereby the vessel is movable relatively to the pipes 9, 10 to control circulation through the condenser. When the vessel is moved to a position anticlockwise with respect to Fig. 1, vapour flows into the pipe 9 and displaces an equal amount of condensate from pipe 10. This condensate overflows the vessel and closes the pipe 9 until the level in the vessel drops, when vapour can again enter the pipe 9 to displace more condensate and so on. In a modification, the beam 6 is overbalanced by a weight so that the pipe 10 normally abuts the bottom of the vessel. The poles of an electromagnet are fixed outside the housing in such a position that when the magnet is energised, the beam is moved to open the valve which then operates as before described. To prevent relatively large amounts of condensate being displaced through the pipe 10, the vessel 8 may be made deeper and have a restricted outflow pipe in its well thus causing the pipe 9 to open more frequently to admit smaller quantities of vapour. Instead of having separate pipes 9, 10, a single pipe may be provided. In another arrangement, for a refrigerating system, the beam 6, Fig. 11, is not magnetised, and is mounted on a shaft 5 extending through the housing 4 into an extension 4a, which is mounted in the refrigerator cabinet to protrude into the food storage chamber. A temperature sensitive element 22 is coiled round the shaft 5 and is attached thereto at 23, the other end being secured to a connecting piece 25 of non- magnetic material. The piece 25 is attached to a magnet 60 rotatably mounted on the shaft and movable, to set the datum of the element 22 by a magnet 7 mounted externally of the casing extension. Thus, With the datum set, the element 22 will move the vessel 8 to control circulation through the condenser. Specification 669,099 also is referred to.
Patent GB-813361-A (GB)
Title: Poultry feeds
Inventor: ELY CHARLES MORGAN
IPC: A23K20/158
Filed: 1957-02-14
Abstract: A feed for accelerating the growth of chicks and improving their feed utilization contains 0,5-2,0 per cent., based on the dry weight of the feed, of a sodium or potassium soap of a fatty acid having 12-22 carbon atoms in the molecule, e.g. sodium stearate, a sodium soap from tallow, a sodium soap from ricebran oil.  U.S.A. 2,604,402, and 2,717,209 are referred to.
Patent GB-124802-A (GB)
Title: Improvements in the Control of Machine Guns and the like.
IPC: F41A19/05
Filed: 1916-04-07
Abstract: 124,802. Martinsyde, Ltd., Martin, H. P., and Lucas, O. D. April 7, 1916. Machine guns; fire between aircraft propeller blades, controlling and synchronizing.-Consists in providing a Lewis gun with electrical connexions, whereby, after the breech is locked, a circuit is closed to fire the cartridge. The invention is specially intended for use on guns firing between the propeller blades of an aeroplane, a commutator geared to the propeller shaft being provided to break the circuit whenever a blade is in the line of fire, as described in Specification 124,777. In the construction shown in Figs. 1, 3, and 5, the breechblock f, Fig. 1, is provided with a rearward extension i projecting through the spade grip j. Within the block f and the extension i is an insulated firing- pin k. The ordinary firing-pin is removed from the piston-rod l, Fig. 3, which is provided with a rearward extension m extending through the spade grip j. On the extension m is a spring contact n adapted to engage the rear of the firing-pin when the piston l approaches its forward position, and a contact y, Fig. 5, adapted to engage a fixed contact z, Fig. 1. To convert from electric to percussion firing, the plunger of the contact n is locked by a cap. shown in dotted lines in Fig. 5, to act as a hammer on the firing-pin k, which is loosely mounted so as to be capable of a slight longitudinal movement. A cartridge having an electric detonator as described in Specifications 124,777 and 124,782, [Class 9 (i), Ammunition &c.], may be employed.
Patent GB-556816-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/04
Filed: 1942-04-20
Abstract: 556,816. Vacuum cleaners. HOOVER, Ltd. April 20, 1942, No. 5220. Convention date, June 21, 1941. [Class 8 (i)] The nozzle of a suction cleaner is formed with a subsidiary nozzle at the end suitable for cleaning next a wall, the flow of air through the nozzles being controllable to put either nozzle in operation. The main nozzle contains a rotary agitator 12 actuated by a separate motor contained in the nozzle and controlled by a switch 39 on the handle. The subsidiary nozzle man contain a non-rotary brush 43 supported by springs which normally lift it from the floor, but. depressible by slide 51 having cam surfaces 53 engaging surfaces on the brush back, which is open to pass the air. The slide is actuated by a pedal 73 and link 77 through a lever ; a second lever controls a valve which connects either nozzle with the suction source ; these two levers are connected by a pin and slot and also by a snap-over spring.
Patent GB-747217-A (GB)
Title: Process of manufacturing cocoa and chocolate pastes
IPC: A23G1/10
Filed: 1954-02-23
Abstract: 747,217. Cocoa manufacture. RICARD, H. L. Feb. 23, 1954 [Feb. 24, 1953; Nov. 30. 1953], No. 5232/54. Class 129. In order to improve the flavour of chocolate, the crude cocoa liquor is pumped from a container 1 into a heated emulsifier 3 where it is thoroughly mixed with air admitted through nozzle 5, and water, steam, or alcohol admitted through nozzle 10. The mixture passes to a centrifuge 15 in a heated container 20. The entrained gases are extracted via hood 24, and the liquor drains out at 19. The container is slightly pressurised via pipe 21.