baber/WOPTO huggingface dataset:
Patent GB-788875-A (GB)
Title: Improvements in or relating to speed-reducing mechanisms
IPC: F16H25/04
Filed: 1955-08-19
Abstract: 788,875. Screw-and-nut gearing. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 19, 1955 [Aug. 23, 1954], No. 23973/55. Class 80 (3). A speed reduction from a shaft 3 to a shaft 5 is obtained by a split nut member 7, 8 which engages a relatively fine thread on shaft 3 and a relatively coarse thread on shaft 5. The nut is moved linearly by rotation of shaft 3 and thereby imparts a smaller amount of rotation to shaft 5. The nut 7, 8 is preferably spring- loaded to reduce backlash. The device is particularly applicable to the actuation of tuning elements in wireless apparatus..
Patent GB-225320-A (GB)
Title: A novel or improved life guard for road or rail vehicles
IPC: B60R21/34
Filed: 1923-09-26
Abstract: 225,320. Mulholland, J., and Crumbley, J. Sept. 26, 1923. Obstruction-removers and safety appliances.- A life-guard comprises side members a hinged at b to the front of of the vehicle and carrying transverse bars e, f, g, h, j, some of which f, g, h, j slide on or in guides on the side members a so that, when the guard is raised, the bars house themselves automatically in front of and behind the bar e nearest the vehicle, and, when the guard is dropped, the bars move automatically outwards and downwards between the side members to cover the front of the vehicle. The free end of a length of wire or resilient fabric, normally wound on a transverse spring roller fixed near the fixed bar e may be attached to the bar j so that the fabric is unwound to extend over the sliding bars when the guard is dropped. Wire or other resilient fabric may be stretched across the front of the radiator and rollers or wheels k are provided at the outer edges of the side members a. The side members a are curved to the shape of the front guards d and apertures n are made, if necessary, to permit the guard to pass over the lamps. The guard is swung into operative position by the driver by means of a hand lever, knee lever or pedal operating sprocket wheels s, p connected by a chain r.
Patent GB-964717-A (GB)
Title: The production of seamless stockings
IPC: D04B9/38
Filed: 1961-07-04
Abstract: 964, 717. Knitting machines; fabrics. SCHUBERT & SALZER MASCHINENFABRIK A. G. July 4, 1961 [Jan. 5, 1961], No. 24069/61. Headings D1C and D1K. In a method of knitting a seamless stocking on a circular knitting machine having at least two feeds the depth of the stitch draw alternates both along the courses and the wales to provide long and short stitches 6, 7 as in Fig. 5 to give a smooth appearance. It is stated that a certain evening out occurs after knitting. This method is carried out by providing alternate needles N 1 , N 2  with short and long butts 1, 2 which co-operate with alternately arranged stepped stitch cam assemblies 3, 4 and 3<SP>1</SP>, 4<SP>1</SP> at the knitting stations. The length of the butts 1, 2 differ by a distance 2a whereas the needle shank lengths l 1 , l 2  differ by a, the step of the cams also being 2a. Thus, at one station the draw of needles N 2  is greater by a, Fig. 1, while at the next station the draw of the needles N 1  is greater, Fig. 3.
Patent GB-424893-A (GB)
Title: Improvements in or relating to luminescent or fluorescent screen structures for use in cathode ray tubes and the like
IPC: A47B21/03
Filed: 1933-08-30
Abstract: 424,893. Fluorescent screens. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and LEVERENZ, H. W., 125, Browning Road, Collingswood, New Jersey, U.S.A. Aug. 30, 1933, No. 24070. Convention date, Aug. 30, 1932. [Class 98 (i)] A fluorescent screen more especially for television purposes is produced by depositing particles of fluorescent materials uniformly upon the surface of a liquefied carrier of vitreous or glassy material, and allowing the combination to cool. The carrier preferably comprises compounds of the lighter elements lying below phosphorous in atomic weight, such as aluminium, boron, beryllium, lithium, and silicon. The screen particles, as of zinc sulphide, may be deposited in one or more layers on the molten carrier 10 by dusting or shaking from a fine sieve, or by spraying, or by forming a cloud and allowing it to settle. On cooling and setting, the partially-embedded particles in the lower layer 18-24 move close together and interlock with the sharp edges of the particles 26-32 in the upper layer. The pressure produced on the partially-embedded particles ensures a more brilliant fluorescence especially in the case of alkali halides, such as sodium chloride or bromide. The carrier may contain a definite amount of lead glass or other material, impermeable to X-rays where such is required, as for example in the case of a transparent screen.
Patent GB-705213-A (GB)
Title: Improvements in or relating to thermally responsive electric switches
IPC: H01H35/26
Filed: 1951-10-16
Abstract: 705,213. Latching thermal switches. IGRANIC ELECTRIC CO., Ltd. Oct. 16, 1951 [Oct. 16, 1950], No. 24107/51. Class 38(5) A switch similar to that of Specification 642,109, [Group XXI], has main contacts 10a, 10b to control the supply of energy to a refrigerator and auxiliary contacts 14a, 14b to control an alarm circuit, a control knob 20 having three main operating positions, i.e. (a) a "normal" position in which the switch mechanism is free to operate the main contacts normally and in additon the alarm or auxiliary contacts in the event of excess temperature, (b) a " continuous run position in which the main contacts are maintained closed and the mechanism is free to operate the alarm contacts and (c) an " alarm off " position in which the mechanism is free to operate the main contacts but not the alarm contacts. In position (a), the main contacts 10a, 10b are opened and closed cyclically by a temperature responsive capsule 12 and snap-action mechanism 11 as described in the Specification referred to above and in the event of a high temperature, a cup 17 on the diaphragm of the capsule moves a lever 16 to close the contacts 14a, 14b. In position (b) a lug 21b engages an extension 11d of a lever 11b of the snap-acting mechanism to latch the lever and prevent the opening of the contacts 10a, 10b as the temperature falls, the contacts 14a, 14b being opened as described above should the temperature rise abnormally. In position (c) a cam member 21a is disposed so as to limit the movement of an adjusting screw 23 extending from the cup 17 to an extent such that the capsule 12 and mechanism 11 can operate the main contacts 10a, 10b, but that the permitted movement of the cup 17 is not suflicient to operate the alarm contacts 14a, 14b. In a modification, Fig. 4a (not shown), the alarm contacts are normally closed and are opened in the event of excess temperature. Reference is also made to U.S.A. Specification 2,511,640.
Patent GB-599586-A (GB)
Title: Improvements in or relating to electric switch boxes
IPC: H02G3/18
Filed: 1945-09-19
Abstract: 599,586. Switch boxes; two-part couplings; junction boxes. GENERAL ELECTRIC CO., Ltd., and JACKSON, E. W. Sept. 19, 1945, No. 24244. [Class 38 (v)] A switch box suitable for flush mounting in a wall, comprises a casing 1, a switch support 4 and adjustable connecting means, permitting a limited universal rocking of the support 4 and adjustment towards or away from the rim 14. An apertured recess 6 in the support 4 receives a screw 8 having a part spherical head 7 and engaging a threaded sleeve 9, wherein it is so locked by a screw 11 or with solder that it is free to be rotated upon a threaded post 12 to move the support 4. A wooden gauge block 16 having a central hole may be used to adjust the support. In similar constructions the screw 8 engages a threaded sleeve secured to the casing, and the head 7 is held captive within the recess 6 by a dished or spring washer, Fig. 3 (not shown), or a recessed plate is secured below the support 4 to contain the head 7, Fig. 5 (not shown), or the screw 8 has a narrow portion 25, Fig. 8. The support 4 is preferably capable of limited rotation, may have upstanding ends 17 serving as gauges and apertured at 26 for conductors, and may be large enough to mount more than one switch or plug- and-socket connector, Figs. 10; 11 (not shown).
Patent GB-380240-A (GB)
Title: Improvements in or relating to heat insulating lagging for boilers, tanks and the like
IPC: F16L59/12
Filed: 1931-08-28
Abstract: 380,240. Nonconducting coverings for heat. KREWS, E., 4, Hathaway Road, Grays, Essex. Aug. 28, 1931, No. 24282. [Class 64 (ii).] Heat-insulating material around the shell of a boiler or the like is secured to the inner surface of plates 13, Fig. 2, so held against the shell by clips or bands that no permanent attachments or structural modifications are necessary. The plates may be supported by Z-shaped clips 10 held against the boiler shell by bands 12, or by U-shaped clips 21, Fig. 5, engaging the edges of adjacent plates and secured against the boiler shell by cords or bands 23. The insulating material is held in cages or envelopes having flaps 16, Fig. 1, held by hooks 17 soldered to the back of the plates. The flaps are made of wire netting, sheets of asbestos or the like.
Patent GB-1511894-A (GB)
Title: Optical readout systems for magnetic data stores
IPC: H01S3/106
Filed: 1975-06-06
Abstract: 1511894 Magneto-optical playback heads SIEMENS AG 6 June 1975 [23 July 1974] 24354/75 Heading G5R [Also in Division H1] A reading head for data stored on a movable magnetic tape 8, Fig. 1, comprises the integral combination of a magneto-optical flux detector 1 and a laser 2, the optical output 9, 10 of the laser being modulated by the detector. The laser is formed by epitaxial growth of an Nd-YAG layer on a transparent sapphire substrate 3, and has corrugated surfaces adjacent its output emitting ends which function as a resonator by providing distributed feedback. The magneto-optical flux detector comprises a YIG layer epitaxially grown on the laser layer. Since the detector layer 1, the laser layer 2 and the substrate 3 have progressively smaller refractive indices n 1 , n 2 , n 3 , laser emission is confined to layers 1 and 2 and the detector layer is effectively located within the resonator. The detector layer can therefore modulate the output modes and modes distribution of the laser output in accordance with the magnetic tape data, the changes in laser emission being in the form of divergency, direction or intentisty distribution, or power. The laser layer is pumped by light 5 directed through the substrate, the light source consisting of either a single lamp or an array of luminescent diodes, Fig. 2 (not shown). Optionally the space between the magnetic tape 8 and the detector layer 2 may be filled with a grown or vacuum-deposited magnetic layer having a refractive index less than n 1 . Pararallel end face resonator mirrors may alternatively be used.
Patent GB-1522121-A (GB)
Title: Wetting and anti-foaming agents
IPC: C09K23/42
Filed: 1976-06-11
Abstract: 1522121 Defoaming compositions CIBAGEIGY 11 June 1976 [13 June 1975 7 Oct 1975] 24355/76 Heading C1C [Also in Divisions D1 and C5] Wetting and antifoaming compositions comprise (a) from 2 to 50% by weight of an anionic surfactant, (b) 6 to 50% by weight of a reaction product, of M.W. 2000 to 7000, which is insoluble or sparingly soluble in water, of monoto hexahydric C 1 -C 6  alcohols, monoalkylmonoamines, monoalkylolmonoamines or polyalkylenepolyamines with propylene oxide, optionally (c) a water-insoluble aliphatic monoalcohol of at least 8 carbon atoms, a reaction product of such with an alkylene oxide, a reaction product of an alkylphenol with an alkylene oxide, a reaction product of a saturated C 3 -C 10  dicarboxylic acid and propylene oxide or a polypropylene glycol, a reaction product of a C 10 -C 18  fatty acid and propylene oxide or a polypropylene glycol, a reaction product of a C 10 -C 18  fatty acid, a trito hexahydric alcohol and propylene oxide, or a reaction product of a C 10 -C 18  fatty acid, a polyalkylenepolyamine and propylene oxide, (d) 0 to 30% by weight of a silicone oil, and (e) from 2 to 92% by weight of water. The compositions may be used to prevent foaming in effluents. In Example 14 a composition consisting of the ammonium salt of the sulphate of the adduct of 2 E.O. to p-tert. nonylphenol, the reaction product of propylene glycol and propylene oxide, M.W. 2700, silicone oil and water is used to suppress foam in an effluent.
Patent GB-829550-A (GB)
Title: Improvements in or relating to floor polishers
Inventor: CLEMENTS ALBERT EDWARD
IPC: A47L11/08
Filed: 1955-08-25
Abstract: 829,550. Floor polishing machines. CLEMENTS Ltd., A. E. Aug. 16, 1956 [Aug. 25, 1955], No. 24508/55. Class 138(1). A floor polisher of the manually operated kind comprises a body 1, Fig. 3, a brush 6 mounted for rotation on the body with its lower portion in contact with or adjacent the floor, a propelling handle 10 connected with the body and capable of least limited movement relative thereto, and unidirectional mechanical driving means 15, 16 connecting the handle and the brush whereby relative movement between the handle and the body in one direction rotates the brush. The handle 10 is pivotally connected to a slide member 11 having, a T guide 12 slidably engaging a corresponding slot in the end wall 3 of the body 1 and two studs 13 engaging in slots 14 in the side walls of the body. Pivotally connected to the slide 11 are pawl arms 16 engaging ratchet gears 15 on the end spigots 7 for the brush 6. The spigots 7 engage in slots 8 in the opposite sides of a casing 4 extending from one side of the body 1 and having a longitudinal slot 5 and a flexible rubber lip 9. The axis of the two spigots is below the axis of the casing so that the lower brush bristles are compressed and some project through the slot 5. The bottom 2 of the body 1 is covered by a polishing pad 20, 21 held in position by a pivoted spring clip 22 and the casing 4 is provided with a cover plate 23 hinged at 24. Polish spread on the brush is wiped onto the lip 9 which spreads it on the floor. In another construction the handle is pivoted on the body 1 concentrically with the brush axis and pawl and ratchet mechanism acts between the handle and brush.
Patent GB-938441-A (GB)
Title: Improvements in or relating to measuring systems
Inventor: CRUMP JACK GEORGE
IPC: G01F23/288
Filed: 1961-07-06
Abstract: 938,441. Measuring fill height of containers. INDUSTRIAL NUCLEONICS CORPORATION. July 6, 1961, No. 24563/6 Class 40 (3). In apparatus for determining the fill height of material in containers 18, Fig. 3, by means of a source of penetrative ionizing radiation 30 located on one side of the container and detecting means 32 for said radiation located on the other side of the containers, the detecting means comprise a plurality of elongated detector tubes 33-35 mounted substantially in a plane which also passes through the location of the source and through the level of the desired fill height of the material. In accordance with a first feature of the invention, Fig. 2, the radiation source 30 is located at a distance or close to the path taken by the containers 18, whilst the detecting means 32 is located at a distance b (limited only by the need to maintain a useful signal-to-noise ratio in the detector output), whereby a given change in the fill height of the container extends over a relatively large portion of the radiation flux angle (determined by dimension of the detector aperture c) and the system acquires good resolution. According to a second feature of the invention, Fig. 3, the path between the source 30 and detecting means 32 is inclined at such an angle to the path of the containers that the containers despite being spaced continuously interrupt the radiation. By this means a pulse output is not produced by the detecting means in response to the passage of succession containers and output variations are due only to fill height variations. The detector may comprise three Geiger-Muller tubes 33-35, successively displaced as shown and connected with the outputs in parallel. The source 30 may comprise a radio-active isotope of cobalt arranged as a cylinder or fine wire disposed end on to the desired radiation path, or a thin film of a radioactive isotope of caesium. Reference is made to a system in which the radiation path is perpendicular to the path of containers 18. The detector output may be used to control the apparatus dispensing the material to the containers, reference being made in this respect to Specification 938,442.
Patent GB-1144475-A (GB)
Title: Improvements in sealing boots
IPC: F16C11/06
Filed: 1966-06-02
Abstract: 1,144,475. Seals. V. LANGEN, [trading as A. EHRENREICH & CIE]. 2 June, 1966 [3 June, 1965], No.24583/66. Heading F2B. A sealing boot for a ball-and-socket joint comprises an elastomeric hollow casing 1<SP>1</SP> open at both ends and having at least two concentric annular corrugations 3, 3d, 3<SP>1</SP>d formed in the casing wall. The corrugated part of the casing wall is thinner than the rest of the casing. In use, one end 6<SP>1</SP> of the casing engages the joint housing and the other end 9 embraces the joint pin and the end 9 may have an extension sleeve 10 that abuts the pin ball head 11. The casing may be of polyurethane.
Patent GB-643352-A (GB)
Title: Improvements in and relating to transporter apparatus
IPC: B65G21/14
Filed: 1947-09-08
Abstract: 643,352. Conveyers. GREFFE, F. Sept. 8, 1947, No. 24669. Convention date, Aug. 30, 1943. [Class 78 (i)] A transporter apparatus comprises a cariage having a jib pivotally mounted thereon and capable of upward angular displacement with respect thereto and an endless conveyer supported in part on the jib, the lower end of the conveyer passing around part of the chassis. A jib 2 is mounted on a carriage 1 by means of trunnions 5. A conveyer belt 7 is supported on the jib by members 6 and is operated by a head drum 10 rotated by a shaft 11 supported in bearings 12 and driven through reduction gearing from a motor 17 supported on a part 18 of a cross-member 19 of the jib. For effecting angular movement of the jib, a second motor is connected with a pulley 21 on a shaft 22 connected with a winch 23 through worm gear. A cable 24 wound on the drum passes over a fixed block 25 on the carriage and on a movable block 26 on a cross-member of the jib, the free end being secured to the front wheel axle 27. Movement of the pulley effects movement of the jib. An automatic stop device 28 is provided. The conveyer belt may be in the form of an endless apron having interlocked bars supported by rollers moving on tracks on the jib and carriage. To ensure engagement of the tracks a movable track is interposed, slidable in brackets beneath the carriage tracks and connected by spindles with the jib tracks. The belt 7 passes over a troughing roller 29 having frusto-conical sides.
Patent GB-688229-A (GB)
Title: Improvements in or relating to balances
IPC: G01G1/00
Filed: 1950-10-10
Abstract: 688,229. Balances. MINISTER OF SUPPLY. Oct. 10, 1950 [March 17, 1950]. No. 24684/50. Class 143. In a precision balance, convection currents within the casing are minimized by surrounding the beam and load supports with a casing of a material having a high thermal conductivity which provides a direct heat conducting path between the beam and load supports, and between the load supports. The casing is in three parts 18, 18a, 18b; part 18 which has holes 44a for the load supporting loops 32 being rigid with the base and supporting part 18a which, is removable for inspection purposes; and part 18b being vertically movable by a screw jack 37, operable by handles 43, to enable weights and loads to be hung on loops 32 by mechanical loading fingers 57. The balance comprises a quartz, truss construction, beam 14, Fig. 1, suspended on a quartz fibre 15, Fig. 2, which is secured to a rectangular spring 21 and a spindle 23 rotation of which, by a wheel 50a, returns the beam to a neutral position after it has been displaced by the load against the torque exerted by the fibre. A dial 16, indicates the weight of the load, or the difference in weight between the load and the counter-weights. The position of balance is ascertained by an optical unit 17 which, through lenses 55 and a series of prisms produces in an eye piece 54 an image of each end of a horizontal index 29 secured to the beam, these images being aligned at the position of balance.
Patent GB-393563-A (GB)
Title: Improvements in and relating to methods of converting alternating currents
IPC: H02M5/00
Filed: 1931-09-02
Abstract: 393,563. Frequency and phase changing; converting. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Sept. 2, 1931, No. 24686. Convention date, Sept. 2, 1930. Void [Published under Sect. 91 of the Acts]. [Class 38 (ii).] An arrangement for supplying a single or polyphase load circuit 10 with A.C. of adjustable frequency from a source of polyphase A.C. 11 of fixed frequency comprises grid - controlled valves 1 .. 6 fed by a transformer 12 and associated with an inductance 8, condenser 9 and a further gridcontrolled valve 7 in the usual series inverter type of connection. By appropriate control of the grids the condenser 9 is caused to charge through the valves 1 .. 6 and discharge through the valve 7 at a frequency independent of that of the source 11, thus producing A.C. in the load circuit 10 of a frequency which may be varied in relation to that of the source 11. Frequency may be varied by varying the capacity of the condenser 9 in relation to the load circuit resistance, but in order to maintain frequency constant with varying load, the capacity of the condenser may be arbitrarily or automatically varied with load. Where a polyphase output is required, a number of circuits comprising condenser 9, inductance 8 .and valve 7 corresponding to the number of phases are associated with the valves 1 .. 6.
Patent GB-1055073-A (GB)
Title: Improvements in or relating to photographic processes
Inventor: HUSSEY HUGH HARRY DONALD
IPC: G03C5/40
Filed: 1964-06-15
Abstract: An electrically conductive surface is formed on a base of e.g ceramic, mica, wood, paper, glass or plastics, by partly exposing and developing a silver halide emulsion, removing the exposed part with a bleach-etch solution and then fully exposing and developing the remaining unexposed part.  In an example for forming a printed circuit, a film is partly exposed through a negative mask, developed, rinsed, immersed in a bleach-etch solution comprising cupric sulphate, citric acid, potassium bromide, and hydrogen peroxide, reexposed, developed, rinsed, immersed in a similar bleach-etch solution, rinsed, fully exposed, developed, rinsed, and the printed wiring so formed is polished. The wiring may be built up by electroless deposition of copper using an alkaline solution of copper sulphate with formaldehyde. The conductive layer may be baked to remove residues of gelatine, and lacquered to make the surface non-hygroscopic.