baber/WOPTO huggingface dataset:
Patent GB-1273331-A (GB)
Title: Plastics piano action
Inventor: CORWIN MERTON DUDLEY
IPC: G10C3/16
Filed: 1970-01-05
Abstract: 1,273,331. Pianoforte actions. D. H. BALDWIN CO. 5 Jan., 1970 [13 Jan., 1969], No. 378/70. Heading G5J. A pianoforte action includes a wippen comprising an elongated moulded plastics body having at least one pocket therein containing a coacting pair of wedges having mating channels therein defining an opening receiving a shaft projecting from the wippen. Preferably also the hammer butt, the damper lever, their respective mounting flanges and the hammer jack are plastics mouldings. The plastics material may be Nylon, ABS resin or the acetal resin sold under the Registered Trade Mark " DELRIN ". The wippen 3, Fig. 2, comprises a plastics moulding with pockets 30, 31, at either end. Pocket 30, Fig. 9, contains coacting wedges 43 having retaining lugs 46 and opposed grooves 48 to receive the damper spoon. Pocket 31, which has a shoulder 51 for positive location, similarly receives the back check rod. Bearing notches 38, 39 respectively are provided for the jack mounting and the pivot connection to the wippen flange. The wippen may be actuated by a striker engaging hook 32 or a capstan engaing the cushion 35. The hammer butt 5, Fig. 15, comprises a plastics moulding having a hammer shank socket 63 and a recess 61 receiving a stub shaft on the hammer butt flange. The jack and back check abutments 64, 72 comprise leather pieces retained by barbs 68, 69, 75, 76 in grooves 66, 67, 73, 74. Furtner cushioning may be provided under the leather piece 65. In a modification, Figs. 36 and 37 (not shown) the distal end of the hammer shank socket is of oval or square cross-section with corner ridges. The hammer butt, wippen and damper flanges comprise bifurcated plastics mouldings 80, Fig. 19, having grooved ears 81, 82 for receiving pivot pins and, in the case of the damper and hammer butt flanges, a groove to receive a spring end. The jack moulding 4, Fig. 22, comprises a pair of notched ears 94 to receive the jack pivot and a barbed stud 99 to engage the jack spring. The damper is mounted in a socket 109, Fig. 24, in a damper lever comprising integrally moulded plastics side members 107 and a front member 113 the lower part of which carries a cushion to engage the operating spoon. The pivot pin aperture 100 is formed by co-operation of notches 104 in the side members with a notch in the central member 106. The back check, Fig. 32, comprises a cushion 126 mounted on a moulded plastics body 128. The bridle cord 135 passes through grooves 133 and is secured to lugs 130 and a post 132.
Patent GB-379196-A (GB)
Title: Process for finishing wet artificial silk in the form of skeins or cakes with oil emulsions
IPC: D01F11/02
Filed: 1932-01-06
Abstract: Artificial silk in the form of cakes or skeins is treated, while still in the wet state subsequently to washing and bleaching, with oil emulsions containing at least 4 per cent of oil, and the emulsions are treated for the removal of the proportion of water introduced by contact with the wet silk and are used over again. Separation of water may be effected on only a part of the emulsion, the recovered oil or concentrated emulsion being then mixed with the other part to restore it to the original concentration.  Substances such as concentrated salt solutions may be added to the diluted emulsion to effect separation of oil and water.  Separation may be effected by centrifugal treatment. Water soluble substances which are removed from the emulsion during the separation process must be re-added before using the emulsion again.  The removal of water from the oil emulsion may also be effected by evaporation of the water, preferably under reduced pressure.  The process may be continuous or discontinuous.
Patent GB-987969-A (GB)
Title: Equipment associated with piston casting machines for feeding and inserting control members or rings into the casting die
IPC: B22C21/14
Filed: 1964-01-03
Abstract: 987,969. Piston casting machines. KARL SCHMIDT G.m.b.H. Jan. 3, 1964 [Jan. 16, 1963], No. 413/64. Heading B3F. Apparatus for feeding and inserting control members or rings into a piston casting die comprises magazines 1 each containing a stack of ports 2 which are spring-urged towards the delivery end of the magazine adjacent a feed head 27. The feed head is adapted to move across the end of the magazine and to pick up a port by means of a magnet 29 and transfer it to a receiving plate 28 which retains the part by means of a more powerful magnet 30. The receiving plate is carried by a swinging arm 35 which is actuated by hydraulic means which moves the arm 35 through 90 degrees towards the casting machine 38. A further movement of the hydraulic device, lowers the arm 35 over the cores 47 and the part or parts carried by the arm are transferred to the cores prior to the casting operation. The arm 35 returns to its initial position under the action of a spring. Other features of the apparatus include means for adjusting the magazine to suit different size parts, means for rotating the feed-head to locate the part in a particular position in the receiving plate and means for setting the magazine so that only one part is removed at one time by the feed-head.
Patent GB-1533823-A (GB)
Title: Remote signalling apparatus particularly suitable for anti-theft and anti-burglary protection
IPC: B60R25/10
Filed: 1977-01-06
Abstract: 1533823 Selective signalling VOXSON SpA 6 Jan 1977 [13 Jan 1976] 00451/77 Heading G4H In a remote signalling system, physical separation (unplugging) of a portable receiver from a transmitter enables the transmitter to respond to detection of a burglary/theft attempt by transmitting (by radio) a coded signal, respective to both transmitter and receiver, to the receiver which recognizes it and gives an alarm indication. The coded signal is a sequence of pulse trains, significant by numbers of pulses, each pulse being a tone modulated on to the carrier, both transmitter and receiver using scanning of a programmed matrix to produce or recognize the sequence. One or more receivers be plugged into a frame to give respective alarm indications.
Patent GB-395609-A (GB)
Title: A portable shearing device adapted to be held between the jaws of a vise
IPC: B23D17/08
Filed: 1933-01-06
Abstract: 395,609. Shearing. RIGAL, L., 89, Avenue de Choisy, Paris. Jan. 6, 1933, Nos. 456 and 16118. Convention dates, Jan. 6, 1932, and Jan. 7, 1932. [Class 83 (iv).] In a portable shearing - device a member 2 is attached to a vice 11 by a side bracket 11 with shaped top, and carries a pivoted member 3 and pivoted operating handle 7. Gearing 6 connects the parts 3, 7. A guide 10 on the member 2 co-operates with a guide on the member 3.
Patent GB-370423-A (GB)
Title: Improvements in or relating to cash registers
Filed: 1931-01-06
Abstract: 370,423. Cash registers. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London.-(Assignees of Peirce, J. R. ; 33, Riverside Drive, New York, U.S.A.) Jan. 6, 1931, No. 517. Convention date, Jan. 7, 1930. [Class 100 (iv).] Type-wheels.-In a cash register, means for printing the name of the article sold is controlled by a perforated tag inserted into! the machine, and comprises type-bars 399, Fig. 38, made up of individual type and carried in slots in an angularly adjustable arm 395. The bars may be removed by retracting a pin 397 normally held in place by a blade spring 398. Ink-ribbon mechanism.-The ink ribbon 151, Fig. 28, is carried by spools 152 and is fed by the rocking of a bell crank 160 connected to the hammer-impression mechanism. A pin 157 on the bell crank is held in engagement with one of two recesses 156 in a slide 155 by a spring-pressed arm 158. Dogs 154 on the slide coact alternatively with ratchet wheels 153 on the spools. When the ribbon has been completely unwound from a spool, the pin 157 moves into the other recess 156 and the ribbon is rewound.
Patent GB-966867-A (GB)
Title: Improvements relating to smoke indicators
Inventor: ADAMS FRANCIS JOHN
IPC: G01N21/53
Filed: 1961-01-05
Abstract: 966,867. Smoke detectors. PYRENE CO. Ltd. Jan. 5, 1962 [Jan. 5, 1961; March 14, 1961], Nos. 533/61 and 9317/61. Headings G1A and G1X. A smoke indicator comprises a smoke chamber 22 constructed to allow the transverse passage of air while excluding the entry of light, a lamp chamber 21 at one end of the smoke chamber, a light-sensitive cell chamber 23 at the other end, and a barrier 50, interposed in the path of light rays from a lamp 40 in the lamp chamber to prevent the rays from falling directly on a light-sensitive cell 60 in the cell chamber so that only light, scattered by smoke particles in the air stream, will be detected by the light sensitive cell. The wall of the smoke chamber is formed of a plurality of annular louvres 52 having interlocking annular V-shaped grooves 54 adjacent their peripheries so as to allow the passage of air therebetween but exclude light. The louvres are supported on pillars 55, one of which contains a heated, voltage stabilizing resistor 71 causing thermal movement of the air through the smoke chamber. The lamp chamber also contains an auxiliary test lamp 67 for illuminating the light-sensitive cell 60 through hole 69. Printed circuit board amplifiers 63 and 64 are mounted on the light-sensitive cell. The indicator may actuate an alarm or a warning light. A simpler embodiment, dispensing with the louvres and light-sensitive cell and having a window for visual observation of the light scattering smoke particles, is also described, Fig. 1 (not shown).
Patent GB-721287-A (GB)
Title: Improvements in or relating to elastic fluid turbines
Inventor: YATES HENRY GEORGE
IPC: F01D15/04
Filed: 1952-01-08
Abstract: 721,287. Turbines. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Jan. 12, 1953 [Jan. 8, 1952], No. 588/52. Class 110 (3). An elastic fluid turbine having a separate group of by-passing nozzles or stages the exhaust of which is led to a low-pressure stage in the direct line of flow of the turbine, has the group of nozzles or stages fed with working fluid tapped from an intermediate point at a higher pressure in the direct line of flow of the turbine. In the arrangement shown, Fig. 1, two turbines A and B drive a power shaft through pinions 13, 14. At low powers the valve 7 is shut and steam is admitted at 2 and expands in the turbine A to the point 8 where it is divided, part passes through the low-pressure stages of the turbine A and part-through the same stages of the turbine B: To develop maximum power, the valve 7 is opened and part of the exhaust of the first stage 15 of the turbine A passes through the initial stages of the turbine B. Additional supply nozzles to the turbine A may also be opened. By suitable choice of the point 8 and arranging the turbine so that the flow through the early stages of the turbine B is about twice that through the bypassed stages in the turbine A, the two turbines may be arranged to deliver equal power. In a modification the low-pressure stages of the turbines A and B are arranged in one casing and the high-pressure stages in another. In a further modification, Fig. 3, nozzles controlled by a valve 24 are supplied with steam from the previous stage when extra power is required.
Patent GB-643095-A (GB)
Title: An improved spring loading device for adjustment screws or the like
IPC: F16B39/22
Filed: 1948-01-08
Abstract: 643,095. Locking screws. BIRCH, S., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Jan. 8, 1948, No. 627. [Class 89(i)] Screws, such as electrical screws 3, are locked after adjustment by a resilient strip 1 slotted at 7 to engage the bracket 2 carrying the screw and also slotted to engage under the screw head. The slot for the screw may extend the length of the strip, forming shoulders at its junction with the slot 7. When the screw is carried by a flat plate the locking strip passes over a lug projecting into an aperture therein.
Patent GB-193227-A (GB)
Title: Improvements in or relating to gauges
Filed: 1922-01-09
Abstract: 193,227. Wright, W. Jan. 9, 1922. Linear-dimension gauges.-A gauge having a line contact comprises a cylinder or roller fitted in a carrier with part of its periphery projecting, a gauge body in a channel in which the carrier is mounted, and spring and other means within the channel for holding the carrier in position. Figs. II. and III. show a plug gauge comprising a handle portion 1 and two heads 2. In each head two roller carriers 4 are sidably mounted in a through passage 3. The rollers 9 are a tight fit in the carriers and project slightly as shown. The carriers 4 are connected together by curved springs 11 which tend to draw them together. They are adjustably held apart by a headed bolt 14 and a nut 13, chamfered parts of the carriers bearing against chamfered parts of the bolt head and nut, which fit into openings 5 communicating with the passage 3. Adjustment of the gauge is effected by rotating the nut 13 which is then sealed. Fig. IV. shows an external gauge having a body of horse-shoe shape. One head 2 carries a hardened, ground, and tapped plate 15 and the other one or more cylinders or rollers 9. The plate 15 is held by screws 16 which are adjusted and sealed. The cylinders 9 are mounted in carriers 4 in through passages 3. A spring 11 acting on a pin 10 in the stem 6 of each carrier pulls the carrier inwards until the stem engages a screw cap 17 closing the passage 3. The carrier is adjusted by turning the cap 17 which is then sealed.
Patent GB-493186-A (GB)
Title: Method of making a composite abrasive wheel
IPC: B24D18/00
Filed: 1938-01-08
Abstract: 493,186. Grinding-wheels; moulding. NORTON GRINDING WHEEL CO., Ltd. Jan. 8, 1938, No. 651. Convention date, Jan. 12, 1937. [Class 60] [Also in Group V] A composite grinding-wheel is made by moulding a heat-settable material to form a support, separately moulding a mixture of abrasive grains and heat-settable material to form an abrasive ring, heating the ring to set it in its final non-plastic condition, and securing the ring to the support in a pressure mould. The support may be heated to set it prior to assembly with the ring, a heat-settable cement being then interposed between the ring and the support. Alternatively, the support may be heated after assembly with the ring in the pressure mould, being caused to flow by the pressure into integral union with the ring. In this case, heat-settable cement may or may not be interposed between the ring and the support. The heatsettable material and cement mav be a resinoid or vulcanizable rubber compound. The cement may take the form of impregnated paper. Fig. 2 shows a pressure mould by which an abrasive ring 10 is secured to the side face of a supporting plate 12 with interposed cement 14. Fig. 3 shows a pressure mould by which an abrasive rim 25 is secured to the periphery of a central support 24, with interposed cement 33, the pressure plate 30 of the mould acting only on the side face of the support 24.
Patent GB-232307-A (GB)
Title: New or improved light-sensitive materials for photography and cinematography
IPC: G03C1/725
Filed: 1924-01-09
Abstract: 232,307. Martinez, M. Jan. 9, 1924. No Patent granted (Sealing fee not paid). Plates, films, and papers; developing; fixing.- Mercuric cyanide, or a mixture of a mercury salt and a cyanide, is employed in a sensitive surface. Sensitizers may be coated on to the surface together with the mercuric cyanide and include acids, salts of organic acids such as alkali oxalates, used with or without a bromide, or tartrates, chloral, alkali chlorides, ferric salts, particularly of organic acids, and silver nitrate. An albumen or gelatine size, small amounts of oxalic, tartaric, or acetic acids, sodium sulphite or phosphate, stannic chloride or ammonia may also be added to the sensitizing solution. To increase the speed there may also be added to the solution basic mercuric cyanide, fluorescein or a sodium salt thereof, silver fluoride, a halogen acid, a sulphocyanide, formic acid or a formate, methyl, ethyl, or other alcohol, acetone and suitable sizes and colloids. The surface is preferably dried rapidly, for example by a current of hot air, after sensitizing. When used in an emulsion the mercuric cyanide may be refined by any of the methods used with silver emulsions. After exposure, the surface is washed with water or with a solution of one or more of the following fixing reagents : acetic acid or an acetate such as lead or chromium acetate, hydrochloric, arsenious, or arsenic acids, stannous or an alkali chloride, silver nitrate followed by sodium thiosulphate, and potassium ferricyanide. The surface may also be fixed by pressing it while moist against a silver or silvered plate or a surface of reduced silver. Examples are given of sensitizing solutions used. The Provisional Specification describes also the use of other salts of mercury, including mercuric nitrate or chloride or mercurous nitrate and also states that collodion in alcoholic solution, nitric acid, and amvl acetate may be employed in the sensitizing solutions.
Patent GB-936303-A (GB)
Title: Control systems for electric motors
Inventor: JR JACK C HOHNE
IPC: H02P3/12
Filed: 1960-01-07
Abstract: 936,303. Control of D.C. motors. GLOBE INDUSTRIES Inc. Jan. 7, 1960, No. 668/60. Class 38 (3). A D.C. motor is braked by short-circuiting its armature through a transistor. As shown, current passes through diode 58, armature 3, and transistor 30 when switch 60 engages terminal 1, transistor 50 being non-conductive due to the bias voltage developed across diode 58. When the switch 60 is adjusted to its central position, the motor regenerates and braking-current is passed through transistor 50 and diode 48. Engagement of the switch 60 with terminal 11 causes current to flow through diode 38 to start the motor in the opposite direction.
Patent GB-746398-A (GB)
Title: Improvements relating to electrical systems for automatically dimming vehicle headlamps
IPC: B60Q1/14
Filed: 1954-01-11
Abstract: 746,398. Photo-electric headlamp dimming system. GENERAL MOTORS CORPORATION. Jan. 11, 1954 [Jan. 21, 1953], No. 688/54. Addition to 712,740. Class 40 (3). An automatic headlamp dimming system of the type described in the parent Specification in which the output of a photo-electric cell responsive to the headlamps of an oncoming vehicle is amplified and used to operate a dimming mechanism and in which the sensitivity of the amplifier is increased when the headlamps are dimmed so that if the oncoming vehicle also dims its lights the system does not restore the lights to " bright " is also provided with means which after the first dimming of the headlamps and increase in amplifier sensitivity partly reduce the sensitivity again so that the dimming mechanism is not hold operated by ambient light. As shown, a power supply unit comprising a vibrator and transformer converts a battery supply or terminal 2 to the correct operating voltage for the photo-electric unit 20. The output current of the photo-electric cell flows through series resistors 24, 30, 40, resistors 30, 40 being short-circuited by the armature of relay 64 when the photo-cell is not illuminated. The potential developed at the photocell end of resistor 24 biases the left-hand side of double triode 54 in the left-hand anode circuit of which is the winding of relay 64. Increase of incident light on the photo-cell increases the current through resistor 24 and hence reduces the conductivity of the lefthand side of tube 54 de-energizing relay 64 which removes the short circuit from resistors 30, 40 thus increasing the sensitivity of the amplifier. At the same time, relay 64 energizes relay 124 to transfer the supply from the bright to dim lamp terminals and connect condenser 102, previously charged from power line 4 through the left-hand contact of relay 64, in parallel with a resistor 112 through which it discharges. The potential developed across the resistor determines the grid potential of ,the right-hand triode of valve 54, the current through the triode eventually increasing to the point where a relay 116 is operated thus shortcircuiting a portion of resistors 20 and 40 again reducing the amplifier sensitivity but not to its original condition, to which it is restored by the energization of relay 48 only if no further light is received from an oncoming vehicle. An over-riding switch comprising a diode connected to the anode of the left-hand triode of valve 54 and a switch for grounding the cathode is provided to enable relay 48 to be energized independently of valve 54. In a modification (Fig. 2, not shown), de-energization of a relay corresponding to relay 48 (above) dims the headlamp, increases sensitivity of the amplifier and heats a bimetallic switch which subsequently partly reduces sensitivity again.
Patent GB-1082911-A (GB)
Title: Receptacles
IPC: A47B81/00
Filed: 1966-01-07
Abstract: 1,082,911. Containers for money &c. G. RIEGRAF. Jan. 7, 1966 [Feb. 3, 1965], No. 757/66. Heading B8P. A receptacle for hanging on a wall has a back panel which can be opened, side walls which extend to form a frame around a picture, mirror or decorative covering on the front panel, and an aperture in the top through which money &c. may be introduced. There may be V- shaped guides in the receptacle to support the inserted articles.
Patent GB-1438961-A (GB)
Title: Optical transmission systems
IPC: G02B6/28
Filed: 1973-01-05
Abstract: 1438961 Light guides BICC Ltd 7 Jan 1974 [5 Jan 1973] 763/73 Heading G2J Light transmitted in a multiplicity of modes along a liquid-cored optical fibre is subdivided by dispersing light from the cladding at one region of the fibre substantially to prevent light passing in the transmission direction from that region along the cladding to a contiguous or adjacent second region of the fibre and heating the second region to reduce the difference in the refractive indices of the core and fibre so that some, but not all, the modes entering the second region pass into the cladding there, and are transmitted to a detector or other light receiver. The method is applicable to fibre bundles, and a separate detector may be provided for each fibre. The heater may be thermostatically controlled.
Patent GB-1372961-A (GB)
Title: Vehicles for use in an underground mine roadway
IPC: B62D1/26
Filed: 1973-01-04
Abstract: 1372961 Vehicles for mine roadway COAL INDUSTRY (PATENTS) Ltd 4 Jan 1973 [7 Jan 1972] 832/72 Heading B7L A vehicle having a chassis 1 and wheels 2 is guided along a mine roadway by non-vehiclesupporting means 34 having jaws 32 which slidably engage a rigid member 31 extending along the roadway, the mounting of the means 34 and jaws 32 being such as to permit universal movement of the jaws relative to the chassis 1. The vehicle shown is a tractor unit having an electric motor 6, and the power supply to the motor is fed by a trailing cable 12 in a receiving trough. The base of each connecting arm 34 is pivoted to the chassis 1 and the apex pivotally carries the respective jaw 32. A resilient bush as 38 at each pivot point affords limited universal movement. The tube 31 is mounted on one limb of the cable receiving trough. A modified form of connection between the vehicle and tube comprises a C-shaped jaw for engaging the tube which is pivoted about a vertical axis between the limbs of a U-shaped member which has a projecting spigot rotatably received in a bush which in turn is pivotable about a horizontal axis on the vehicle chassis. In the Fig. 12 embodiment the tube 31 extending along the side of the vehicle is replaced by an I-beam 81 which is slidably engaged by jaws 86 on a body 85, and a part spherical member 89 on a shaft 90 extending between limbs 100 of a connecting arm which is pivoted to the vehicle chassis provides for universal movement. Instead of the driven tractor of Fig. 2 non-driven vehicles hauled by a locomotive or a rope may be guided by the means described. Such vehicles may have one or two connecting arms. In particular a train of such non-driven vehicles may be coupled to and hauled by the tractor described.