baber/WOPTO huggingface dataset:
Patent GB-318480-A (GB)
Title: Improvements in or relating to changing signs
IPC: G09F7/22
Filed: 1928-06-01
Abstract: 318,480. Berry, H. H., and Painton, C. A. June 1, 1928. Radial boards and like e l e m e n t s, oscillating.-A sign comprises a panel 2 hinged along a medial horizontal line to a background 1 and adapted to be oscillated continuously against the top and bottom portions of the background, and thus repeatedly expose two different legends &c. A coloured translucent sheet 3 projects forwardly above the sign. The sign characters may have a reflecting surface. The panel 2 may be moved by electrical or mechanical means.
Patent GB-1094179-A (GB)
Title: Vent grommets
IPC: F16K15/04
Filed: 1966-04-12
Abstract: 1,094,179. Grommets; valves. TIMKEN ROLLER BEARING CO. April 12, 1966 [Sept. 30, 19651. No. 16087/66. Headings F2H and F2V. A resilient grommet comprises an annular head portion 17 and an anchor portion 20 connected by a shank portion (16), and a vent passage (21),  Fig. 4, (not shown), in the shank which connects with openings 19 around the periphery of the head. In Figs. 7 and 8, (not shown), the head has no peripheral openings and is lifted by fluid pressure in the passage (42).
Patent GB-873759-A (GB)
Title: Stator casing assembly for use in gas compressors or turbines
IPC: F01D9/04
Filed: 1958-05-20
Abstract: 873,759. Compressor and turbine stator casings. GENERAL ELECTRIC CO. May 20, 1958 [June 3, 1957], No. 16151/58. Classes 110 (1) and 110 (3). A stator casing assembly comprises a segmented casing 4 supporting a series of annular stator vane rings 60 by means of co-operating casing and ring rabbets 22, 64 respectively, each stator vane ring being divided into two ring segments, and means recessed in the ends of the casing and ring rabbets for locking the ring segments in the casing. With one ring half 60 partly removed from the lower casing half as shown, a key 96 having a flat head portion 98 and a hook portion 102, is inserted so that the hook 102 enters a notch 92 and the flat head 98 overlies an end surface 80 of the ring rabbet. The ring half is then slid back into place so that the head 98 enters a recess 72 at the end of the casing rabbet and overlies an end surface 80 of the adjacent ring half 60. When the two casing halves are bolted together, the edges 84 and 88 of the lower ring and casing halves abut the non-recessed edges of the upper ring and casing halves to hold the keys 96 in place to prevent the rings 60 from rotating in the casing. In an alternative construction, the key has two hooked portions, Fig. 7 (not shown), locking it to the ring rabbets of two adjacent ring halves. Each stator vane ring may carry two stages of stator blades and a steadying rim extending radially outwardly therefrom. This rim co-operates with a steadying rim extending radially inwardly from the casing between adjacent casing rabbets 22. The ring halves 60 are made of thin flexible, resilient steel.
Patent GB-1491420-A (GB)
Title: Apparatus for supplying current to an electric welding se
IPC: B23K9/10
Filed: 1976-04-22
Abstract: 1491420 Power supplies for welding sets INSTYTUT SPAWALNICTWA 22 April 1976 [29 April 1975] 16278/76 Addition to 1357923 Heading H2H A power supply for a welding set according to the parent Specification is modified in that each transductor power winding is formed of a first portion 7 or 9 and a second portion 6 or 8, the connection of the contacts 5 enabling the portions 7, 9 to be connected in series to provide low welding currents and enabling the series connected portions 6, 7 and 8, 9 to be connected in parallel to provide high welding currents. The transductor power windings are wound on a core 3, 4 and with the contacts in the position shown, the portions 7, 9 are connected in series across the supply. When the contacts are moved to their other position, the windings are connected in parallel.
Patent GB-406536-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B1/22
Filed: 1933-06-06
Abstract: 406,536. Methods of generating steam. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. June 6, 1933, No. 16293. Convention date, June 4, 1932. [Class 123 (ii).] In a boiler of the kind in which the combustion gases flow at high velocity through longitudinal flue tubes 2 in water tubes 11 arranged around a combustion chamber, as described in Specification 347,199, the water tubes are so mounted as to be readily exchangeable. The water tubes are supplied with water from the lower header 14 through detachable connections 16 and discharge into the upper header 19 through side openings 7. The flue tubes in each water tube open at their lower end into a single flared discharge nozzle 5 projecting into the outlet flue. In a modification, the water tubes open into the upper header through detachable tubular connectors. In this modification, the water tubes are spaced apart around the combustion chamber, the spaces between them being closed by small diameter steam or water tubes. Specification 372,636 also is referred to.
Patent GB-834977-A (GB)
Title: Improvements in or relating to the bonding of glass to metal
IPC: C03C27/02
Filed: 1958-05-21
Abstract: Electric lead-in conductors are made from an alloy of 90-99.9% of platinum and 10-0.1% of silver.  In an example 95% of platinum is alloyed with 5% of silver.
Patent GB-546594-A (GB)
Title: Improvements in and relating to the excitation of polyphase dynamo-electric machines
IPC: H02K19/00
Filed: 1940-11-14
Abstract: 546,594. Exciting alternating-current machines. WALLOF, A. L. Nov. 14; 1940, No. 16471. [Class 35] In a polyphase dynamo-electric machine, the unidirectional excitation current is obtained by rectifying an alternating current by a set of commutators rotated by the machine. The alternating current may be obtained from windings inductively associated with the main windings. In the motor shown in Fig. 1 the stator is provided with main windings 31, 32, 33 lap wound with four coils in series to each phase, two slots to each coil and alternate coils wound in opposite senses, Fig. 3 (not shown). An identical set of stator windings 91, 92, 93 in the same slots supply three-phase current to brushes 97a, 98a, 99a engaging commutators 82, 82, 83 each in four segments with opposite segments joined. One field winding 10, 11, 12 for each phase is wound on each of four rotor poles, similar windings being joined in series to adjacent segments of corresponding commutators. A further set of brushes 97b, 98b, 99b phased 180 degrees from the first set are delta-connected through phasebalancing resistors 311. The rotor is provided with squirrel-cage bars 14 ... 17 for starting; when the motor is running synchronously the commutators supply direct current to the rotor field windings. The application to quarter-phase motors is also described.
Patent GB-329517-A (GB)
Title: Improvements relating to alternating-current electric motors
IPC: H02K17/18
Filed: 1929-05-29
Abstract: 329,517. Jacoby, H. C. E., and Gilbert, N. W.. May 29, 1929. Alternating-current commutator and induction machines. - The rotor of an induction motor having a squirrel-cage and another winding, either of squirrel-cage or commutating type, is made by assembling laminae of two types one of which has deep open slots adapted to contain both windings and the other of which has shallower outer slots for one winding and inner piercings which form tunnels for the other winding. By apportioning the ratio of the two kinds of laminae in the core. the requisite reactance properties may be conferred upon the windings to give the motor a desired characteristic. Figs. 1 and 2 show one combination of laminµ comprising plates 0 with open-topped slots o having wide and narrow outer and inner portions o', o<2> respectively and plates B having wide outer slots b' and narrow inner tunnels b<2> which register with the slots of the plates 0. The complete rotor comprises a central portion of plates 0 and end-portions of plates B, a squirrel-cage being placed in the tunnels b<2> and slots o<2> and a commutator winding in the outer slots b<1>, o<1>. The cage winding has a high leakage inductance in the end-portions and a low inductance in the central part of the core. The inner tun. nels may be placed radially below some only of the slots in plates B and narrow air-slits may connect the slots and tunnels. Figs. 4 and 5 show a double squirrel-cage rotor with bars of circular section comprising end-packets of plates B with slots b<1> and tunnels b<2> and a central portion of plates 0 having outer slots similar to the slots b' alternating with wide slots o terminating in enlargements coincident with the tunnels b<2>. All the slots have narrow peripheral openings o<3>. The winding g has a high leakage inductance and the winding h a low inductance, the values of which depend upon the numbers of plates of each type employed. The Specification describes how a repulsion motor may be given a shunt motor speed characteristic and an improved power factor by employing a peripheral commutator winding and an inner squirrel-cage winding in a composite core as above described, the cage bars being arranged so as to produce no torque or only a slight torque at all speeds in core-sections such as B and full torque in sections such as 0.
Patent GB-831037-A (GB)
Title: Vibrating apparatus
IPC: B07B1/28
Filed: 1958-05-22
Abstract: 831,037. Vibratory apparatus. ALLISCHALMERS MANUFACTURING CO. May 22, 1958 [May 31, 1957], No. 16500/58. Class 80 (4). In a vibratory apparatus having out-ofbalance masses 30, 31 on parallel shafts 26, 27, respectively, which are rotated at equal speeds but in opposite directions by a belt-drive 22 from a motor 21 to a pulley 20 on one of the shafts, the pulley 20 is arranged eccentrically on its shaft so as to compensate for vibratory movement along a line B-B at an angle to the normal K-K to the line of drive D1-F and maintain the belt centre distance substantially constant. The mechanism is shown applied to a vibrating screening and conveying device 11 suspended by cables 15.
Patent GB-583975-A (GB)
Title: Improvements in and relating to loudspeaking intercommunicating telephones
IPC: H04M1/58
Filed: 1944-08-30
Abstract: 583,975. Anti-side-tone circuits. AUTOPHON AKT.-GES. Aug. 30, 1944, No. 16503. Convention date, Nov. 3, 1943. [Class 40 (iv)] In a substation circuit which comprises an instrument LM, which acts as a loud-speaker or a microphone according as it is connected to the input or the output of an amplifier V, and also a head receiver H, the latter has two equal windings connected as shown to the amplifier output and to a balancing network N so that the receiver does not respond to the transmitted currents. With this arrangement, sounds picked up by the receiver H, e.g. from the instrument LM when it acts as a loud-speaker, do not cause an effective input current to the amplifier. An alternative arrangement, Fig. 1 (not shown), in which the point a is transferred to the top of transformer LU has not the latter advantage.
Patent GB-111324-A (GB)
Title: Improvements in and relating to Brush-lifting and Short-circuiting Devices on Induction Motors and the like.
IPC: H02K17/22
Filed: 1916-11-18
Abstract: 111,324. Hurst, T. H., and Brush Electrical Engineering Co. Nov. 18, 1916. Alternating-current motors.-In short circuiting devices for induction motors and the like, the brushes are lifted off the slip-rings, after these have been short-circuited, by means of parallelmotion linkwork. In one arrangement a sleeve 22 carrying short-circuiting blades 23 is movable axially along the motor shaft 3 by means of a handle 18 fixed to a spindle 19; arms 20 on the spindle 19 engage a collar 21 on the sleeve 22. Each brush-holder 6 is provided with a horn 13 which is lifted by the operating-bar 14 of the link work ; the bar 14 is slung by links 28 from points of suspension 29 and carries a layer 14a of insulating material. The sleeve 22 actuates the bar 14 through an arm 25 and a roller 27 on the bar. The arm 25 and collar 21 are formed in halves secured together by a bolt 26. The bar 14 is also connected to the arm 25 by a link 30. Side thrust on the holders 6 is preferably taken up by rollers mounted on the under-sides of the horns 13. The handle'18 is locked in its two end positions by means of a pivoted catch 35 having a projection 36 entering recesses in the casing. In a modification, several brushes, spaced equidistantly, are provided for each slip-ring, and the supports for the links 28 are provided with a double set of holes so that the linkwork can be moved radially inwards to allow for wear of the slip-rings and brushes. The operating spindle 19 may be prolonged to enable the brush-gear of two or more motors to be operated from one handle 18, or the gear may be designed for remote control, either mechanical or electrical.
Patent GB-731887-A (GB)
Title: Improvements in retainer assemblies for retaining telescopic members assembled together
IPC: B25B23/00
Filed: 1953-06-16
Abstract: 731,887. Circlips; stud and socket fasteners. CHICAGO PNEUMATIC TOOL CO. June 16, 1953 [Aug. 28, 1952], No. 16560/53. Classes 44 and 89(2). [Also in Groups XXII, XXIII, XXIV and XXVIII] A retainer assembly for frictionally holding together two telescoping members, e.g. a tool shank 10 and a socket spanner 12, comprises compressive means 16 arranged in a groove in one member and an annular flexible means 14 engaging the compressive means within the groove and projecting from the groove for engaging the other member. As shown, the groove 17 is in the square ended portion 11 of shank 10 and contains an 0-ring 16, e.g. of neoprene, and a resilient split ring 14, e.g. of steel case-hardened on its outer periphery. The ring 14 frictionally engages the walls of the socket part 15 of spanner 12 which may be formed with a groove &c., to be engaged by the ring. Alternatively, the rings may be housed in a groove in the socket to engage the portion 11 of the shank. The interengaging portions of the two telescoping members may be round, elliptical or irregular in cross-section.
Patent GB-700529-A (GB)
Title: Caps for grease nipples
IPC: F16N21/06
Filed: 1951-07-13
Abstract: 700,529. Oil hole closures. NATION, C. L. June 9, 1952 [July 13, 1951], No. 16617/51. Class 12(3) A cap A for grease nipples, particularly those of the ball valve type, comprises a walled recess 2 closed at one end, having a rib 1 at the open end adapted to be expanded over the nipple and to contract beneath a shoulder on the nipple, the cap being characterized by an annular projection 3 near the closed end affording a finger grip. The wall of the cap may be conical.
Patent GB-507704-A (GB)
Title: Improvements in the treatment of grain used for bread
IPC: B02B1/00
Filed: 1938-06-03
Abstract: 507,704. Conditioning wheat. DIENST, K. June 3, 1938, No. 16627. Convention date, March-25. [Class 58] Wheat is treated with excess moisture until it swells and is then subjected whilst in a vacuum to considerable heating at between 40‹ and 65‹ C. so that the excess moisture is withdrawn from even the interior of the berry: the wheat is then ground to flour. Specification 452,546 is referred to.
Patent GB-1505871-A (GB)
Title: Haymaking machines
IPC: A01D78/12
Filed: 1975-04-22
Abstract: 1505871 Hay-making machines C VAN DER LELY NV 22 April 1975 [22 April 1974] 16682/75 Heading A1F A hay-making machine has at least one tined rake member 5, 6 driven about an upwardly extending axis of rotation 11, 12, the rake member comprising a plurality of tines 66, 67 each of which is connected to a first portion 75 of a corresponding tine holder 73 and each tine and its corresponding first tine holder portion 75 being arranged to be held in an operative position by centrifugal forces during rotation of the rake member, in which operative position each tine is directed outwardly with respect to a central part 53 of the rake member; each tine, 66, 67 and the corresponding first tine holder portion being, as a whole, freely pivotable with respect to a second corresponding tine holder portion 74 about a first pivotal axis 77, and this second tine holder portion being freely pivotable with respect to the central part of the rake member about a second pivotal axis 64. The axes 64, 77 may take the form of parallel shafts or shaft 77 may be inclined to the shaft 64. Stops 76, 78 on the tine holder portions 74, 75 contact a rim 54 of the rake member 5, 6 and the tine holder portion 74 respectively when the member 5, 6 is being driven. Specification 1505872 is referred to.
Patent GB-957879-A (GB)
Title: Power-operated screwdriver attachment
Inventor: RUSHTON ERNEST RICHARD
IPC: B25B23/10
Filed: 1962-05-02
Abstract: 957,879. Screwing-up and unscrewing screws. ERICSSON TELEPHONES Ltd. March 15, 1963 [May 2, 1962], No. 16776/62. Heading B3N. An attachment for a power-operated screwdriver comprises a feed tube and a pair of screw-holding jaws 10, 11, the jaws being connected by link arms 18, 19 and the jaws, when moved apart to release the screw, are caused to move simultaneously and by equal amounts. The jaws are each carried on a pivot 12 mounted on a support 22. The links 18, 19 are carried on pivots 20, the remote end of the two links being pivoted together on a pin 21 which is extended in front of the link arms. A vertical slot 23 is cut in the mounting member 22 in which slot the extension of the pin 21 is adapted to slide, the slot being parallel to the bore of the tube 15. The attachment may be fixed to a bench stand type of screwdriver, the plate 14 which carries the support 22 forming or resting on the movable table.
Patent GB-1499014-A (GB)
Title: Pneumatically controlled hydraulically actuated brake apparatus
IPC: F16D65/74
Filed: 1975-04-23
Abstract: 1499014 Pneumatically controlled hydraulically actuated brakes WESTINGHOUSE AIR BRAKE CO 23 April 1975 [10 July 1974] 16863/75 Heading F1D A pneumatic-hydraulic converter for a pneumatically controlled hydraulically actuated brake apparatus has a diaphragm 29 clamped peripherally between casing sections 21, 22 and with its inner part clamped between a plate 31 and a follower 30 to form chambers 33, 34. The follower 30 is integral with a hydraulic piston 36 received in a bore 37 which forces hydraulic fluid into a chamber 70 to operate a brake piston 62 when pneumatic pressure is applied to chamber 34. Conduits 75, 76 connecting chambers 33, 60 and chamber 60 to the hydraulic reservoir provide for return to the reservoir of hydraulic fluid leaking past piston seals 49, 74.
Patent GB-339324-A (GB)
Title: Improvements in and relating to dyestuffs
IPC: C09B3/34
Filed: 1929-05-31
Abstract: 339,324. Barnes, R. S., Thomson, R. F., Thomas, J., and Scottish Dyes, Ltd. May 31, 1929. Samples furnished. Dibenzanthrone dyes.-Dibenzanthrone dyes are made in substance by treating enolic esters of dibenzanthrone or halogenated dibenzanthrone with oxidizing agents in a mineral acid of at least 4 per cent strength. As oxidizing agents, oxides or acid salts rich in oxygen, such as potassium dichromate or potassium permanganate are used. In examples, (1) the enolic sulphuric ester of dibenzanthrone, made by the process of Specification 251,491, is treated with sodium dichromate, potassium persulphate, potassium permanganate, vanadium pentoxide or hydrogen peroxide in sulphuric acid or hydrochloric acid; products dyeing in bluish to black shades are obtained according to the conditions, and (2) pentachlordibenzanthrone (made by nitrating dibenzanthrone in nitro benzene with strong nitric acid and passing chlorine into the product suspended in molten phthalic anhydride) is esterified with pyridine sulphur trioxide in pyridine and the product treated wth potassium dichromate and sulphuric acid.
Patent GB-1137029-A (GB)
Title: Improvements in or relating to chemical reactions involving gaseous materials
IPC: B01J19/08
Filed: 1967-04-12
Abstract: 1,137,029. Treating gases with discharges. DIAMOND ALKALI CO. 12 April, 1967 [14 April, 1966], No. 16867/67. Heading C1A. [Also in Divisions C5 and H5] A reactor for the electrical-arc-promoted production of chemical materials has feed inlets 20 to a central zone 2 of the discharge zone 3 between spaced electrodes 18, 19 for a primary gas or fluidized solid entrained in a gaseous vehicle, and secondary gas introduction ports 8, 13, downstream from zone 2 such that a secondary gas is bled into and flows along the walls 7, 14 of zone 3 forming a sheath around the primary gas, the reactor having gas discharge passages 15, 16 (see also Divisions H3-H5). Suitable feedstocks including nitrogen, for the preparation of cyanogen, hydrogen cyanide, nitrogen oxides, hydrazine, titanium nitride or tungsten nitride; hydrogen, for the preparation of hydrogen cyanide, acetylene, metallic aluminium from aluminium oxide and titanium nitride from titanium tetrachloride; ammonia, for the preparation of titanium nitride and hydrogen cyanide; oxygen, for the preparation of acetylene or nitrogen oxides; as well as fluidized solid reactants such as carbon, aluminium oxide, titanium metal powder and tungsten metal powder entrained in a gas.
Patent GB-297705-A (GB)
Title: Improvements in or relating to lacing-hook setting machines
IPC: A43D100/10
Filed: 1927-06-25
Abstract: 297,705. British United Shoe Machinery Co., Ltd., and Elliott, H. E. June 25, 1927. Lacing-hooks, feeding.- Lacing hooks 16, Figs. 4, 5, of the shape shown are retained in the feeding raceway 1 of a hook setting machine, which may be of the kind described in Specification 175,690, by a spring-held pivoted latch 2 which holds them either in correct position shown in dotted lines, Fig. 4, or in an improper position shown in full lines. A pivoted separator 5 having two operative portions 6. 7 which act to correctly position the hook, if necessary and also to feed the hooks, pushes the outermost hook past the latch 2 into a curved portion 11, Fig. 5, of the raceway from where it is pushed by the usual transferring member 12 on to the anvil 13 of the machine, being twisted, by the co-operative action of the curved raceway and a spring plunger 15, through 90' in the latter part of its travel.
Patent GB-476696-A (GB)
Title: Improved means for sizing yarns
IPC: D06B3/04
Filed: 1936-06-18
Abstract: 476,696. Sizing yarns. LEEK, H. June 18, 1936, No. 16941. [Class 140] Apparatus for sizing yarns, in particular of artificial silk, comprises a stationary size trough f into which dips a roller g upon which rests a smaller roller g<1>, both rollers being carried at the end of a lever a which carries one or two drying cylinders i and is furnished at its other end with a roller n adapted to contact with a roller o on a powerdriven shaft o<1> and also with the barrel part of a bobbin p <1>, the axle pins of which engage vertical guides p. The roller g and cylinders i are driven from the roller n through a cord k passing around pulleys j, j<1>, j<2>. Each lever constitutes a unit for one yarn. which is passed through a thread guide h, between the rollers g, g<1>, around the cylinders i and through fixed and sliding thread guides s, r, to the bobbin. During threading of the yarn, the roller n is raised out of contact with the roller o<1> by a regulating screw t. The cylinders i are heated by gas supplied from a main pipe m through a tap l<2> and flexible tube l<1>; alternatively, they may be heated by electricity, steam or hot air and interiorly or exteriorly. A common size trough f and power shaft o<1> are provided for a number of units ; the rollers n may engage the shaft o<1>.