baber/WOPTO huggingface dataset:
Patent GB-797587-A (GB)
Title: Improvements in or relating to thermal overload relay devices for the protection of electrical apparatus
IPC: H01H83/22
Filed: 1954-08-05
Abstract: 797,587. Thermal switches. BROOKHIRST SWITCHGEAR, Ltd., and BUTTERWORTH, E. M. Aug. 5, 1955 [Aug. 5, 1954], No. 22720/54. Class 38 (5). In a protective device for multiphase circuits bimetal strips 11 are associated with heaters 10, one per phase, and a spring 19 is provided to absorb excessive movement of the bimetal strips. The upper ends of the strips are associated with an actuating bar 14 which acts on a lever 20a which together with a spring blade 22 and a contact arm forms a snap-action switch. The bimetal strips are pivoted on adjustable pivots 12 and their lower ends are associated with a compensating bar 15 to one end of which is attached an ambient temperature compensating bimetal strip 23 disposed between a screw 18 and the spring 19. A pivoted calibration lever 17 is provided for setting the desired overload. On overload both ends of the strips 11 tend to move to the right, but since the upper ends are restrained by spring 21 the lower ends tilt the strip 23 about the screw 18 reducing a gap x to zero after which further movement moves the bar 14 to actuate the switch. Still further movement of the bimetal strips due to latent heat in the windings after the supply has been cut off is absorbed by depression of the spring 19. Protection against single phasing is also provided, since should a heater fail the associated bimetal 11 is held straight between the pivot 12 and a bar 13, thereby preventing movement of the bar 15 and thus causing all movement to be transferred to the bar 14 with consequent premature actuation of the switch. Screws 16 and 18 provide initial adjustment of the bar 13 and lever 17. A hand resetting member (not shown) is also provided. Ambient temperature variation produces similar deformations on the strips 11 and 23, thus maintaining the gap x constant. In the Provisional Specification the spring 19 is shown as helical.
Patent GB-769794-A (GB)
Title: Improvements in electric capacitors
Inventor: SHEN TZU EN
IPC: H01G4/38
Filed: 1954-08-05
Abstract: 769,794. Capacitors. BRITISH DIELECTRIC RESEARCH, Ltd. Aug. 5, 1955 [Aug. 5, 1954], No. 22831/54. Class 37. In an assembly comprising a plurality of parallel-connected self-healing capacitors, the conductors interconnecting the capacitors are arranged to include inductances of such value that, on the breakdown of any one capacitor, heavy discharge currents from the remaining capacitors are prevented from flowing to the first mentioned capacitor before the self-healing process at that capacitor has been completed. The inductances required are of small value and may be provided by connecting the capacitors to a common paralleling point by individual straight-wire conductors a few centimetres in length, Fig. 1 (not shown). In an alternative arrangement the capacitors are interconnected by loops 17 ; to provide a more compact structure the loops may be reduced to single turns as indicated at 17<SP>1</SP>. The individual capacitor units may be of wound type comprising metallized polystyrene or polyethylene-terephthalate film.
Patent GB-353259-A (GB)
Title: Improvements in or relating to liquid fuel burning apparatus
IPC: F23K5/20
Filed: 1930-07-29
Abstract: 353,259. Liquid fuel supply. LANSER, A., Corseaux, Vevey, Switzerland. July 29, 1930, No. 22852. Convention date, July 29, 1929. [Class 75 (i).] Liquid fuel is pumped through a feeder 2 and pipe 5 to the atomizer 6 of a burner by a pump driven by an electric motor controlled by a thermal switch 9 which opens when the fuel in the feeder falls below a predetermined temperature. The fuel in the feeder is heated by an electric heater 3 controlled by a thermostat 4. A pipe 7 leading from the atomizer to a non-return valve 8 in the feeder allows a thermosiphonic circulation of the fuel between the feeder and the atomizer when the pump is not in operation.
Patent GB-1306387-A (GB)
IPC: B62M1/24
Filed: 1970-05-12
Abstract: 1306387 Treadle propelled cycle C BOSSAER 12 May 1970 [13 May 1969 24 March 1970] 22858/70 Heading B7E In a bicycle, pedals 1 and 2 are mounted on the free ends 3 and 4 of control levers 5 and 6 arranged to swing about shafts 8 in vertical planes on each side of the bicycle frame 7, the lever 5 being connected by way of chain 14 which passes over free-wheeling pinion 15, direction reversing gears 20 and 21 and freewheeling pinion 16 to lever 6. A chain 24<SP>1</SP> connects sprocket 24 to a sprocket wheel 25 attached to the bicycle driving wheel 11, the sprocket 24 being either made fast to shaft 17 or a free-wheeling sprocket so arranged as to be positively driven by rotation of shaft 17 upon operation of the pedals 1 and 2. Direction reversing gears 20 and 21 which co-operate with a section 28 of chain 14 having its rollers at right angles to the rollers of the other sections of chain 14 may be replaced by a single direction reversing gear. A free-wheeling pinion 33 which co-operates with projection 34 on housing 18 ensures that shaft 17 can rotate only in a direction corresponding to forward motion of the bicycle. Each end of chain 14 has a connecting part 35<SP>1</SP> with a row of holes 36<SP>1</SP> to enable adjustable connection to be made to rows of holes 37 in levers 5 and 6.
Patent GB-1037558-A (GB)
Title: Improvements relating to construction and erection of submersible structures
Inventor: ROSE NORMAN KEITH
IPC: E02B17/02
Filed: 1963-06-07
Abstract: 1,037,558. Submersible structure. GEORGE WIMPEY & CO. Ltd. June 5, 1964 [June 7, 1963], No. 22866/63. Heading E1H. A platform-supporting structure comprises at least three legs 75 (Fig. 7, not shown), having inherent positive buoyancy, pivot means 75B interattaching these legs at corresponding ends thereof, and means for trimming each of the legs. The structure has a hollow tubular mast 71 built of rigidly interattached sections and which has through its length an internal tube 71A through which a drill can pass. The foot of the mast comprises one or more floating elements 71B which together with deck 73 acts as a rolling wheel for launching the structure. The mast 71 carries the platform 72 which serves as the mounting for winches 72A. The legs 75 are constructed of sections of tube of which each is buoyant, joints being made at 75A. The pivoting arrangement allows the legs to swing radially from a nesting position parallel to the mast to a position contacting the bed of the water. A float 77 is movably attached to the mast 71. Trimming is achieved by means of external pipe connections (not shown). In a modification jets of water or air may be ejected from the mast and/or legs against the water bed to scour the bed prior to the bedding down of the structure. Also a setting concrete mass may be ejected from the mast and/or legs to form a foundation therefor.
Patent GB-576681-A (GB)
Title: Improvements in or relating to couplings for pipes, tubes and the like
IPC: F16L39/00
Filed: 1944-11-17
Abstract: 576,681. Pipe couplings. THOMPSON PRODUCTS, INC. Nov. 17, 1944, No. 22868. Convention date, Dec. 4, 1943. [Class 99 (ii)] A coupling for connecting fluid conduits includes a pair of ported coupling-boxes and a valve member comprising interfitting apertured plates which are rotated to cover and uncover the ports and which serve to lock the boxes together when the valve member is in the open position. A coupling adapted to interconnect five conduits 13 with the same number of axially aligned conduits 16, comprises boxes 11, 12 each provided with bosses 21 which are bored and tapped to receive the conduits. The boxes have integral segmental retaining fingers 24, 24a respectively which when the coupling is assembled, enclose a cylindrical chamber 25, Fig. 2, containing a valve member 26..The latter comprises two plates 27, 28 locked against relative rotary movement by the engagement of bored bosses 31 in the lower plate with holes 33 in'the upper and by the engagement of a lug with a recess 42. When the valve is in the Fig. 2 position, the holes 32 provide fluid passages between the aligned conduits. The plates have segmental peripheral flanges 29, 30 respectively, arranged to interfit so that when the plates are assembled they substantially fill the chamber 25. The valve assembly may be turned by means of a knob 44 mounted on the lower plate and provided with pins 49 engaging, holes in the lower plate and passing through slots in the box 11. The valve is located in the "flow" position by a spring-pressed plunger 58 engaging a hole in the upper valve plate and in this position flanges 29, 30 coact with the retaining fingers of the boxes to hold the parts together. By rotation of the plate 27 through 30‹ from the flow position this plate closes the ports 19 in the box 11 and spring-pressed'sealing rings 37 engage the plate to prevent leakage from the chambers 35. Similarly the plate 28. closes the ports 20 which are sealed off by rings 3.8. In this position the segmental flanges are so disposed in relation to the retaining fingers 24, 24a, that the coupling boxes may be separated, each with its valve plate in sealing position, Fig. 5.
Patent GB-204053-A (GB)
Title: Improvements relating to the wireless transmission of morse code signals
IPC: H04L27/04
Filed: 1923-09-12
Abstract: 204,053. Soc. Franþaise Radio-Electrique. Sept. 13, 1922, [Convention date]. Keying systems and apparatus.-The energy output from a transmitting aerial is increased either when sending a dot or at the beginning of each signal so that the dots are strengthened relatively to the dashes, particularly in high-speed transmission. The contacts 4, 5, Fig. 1, are normally closed, but are opened when sending a dot, so as to increase the coupling between the alternator circuit 1 and the aerial. In a modified arrangement, iron-cored inductances fed with separate saturating currents are inserted both in the closed and open circuits, and the impedance value of both inductances is controlled by the signalling key for the same purpose. As shown in Fig. 5, the aerial current is used to effect the required change in radiation output. At the commencement of each signal the inductance 3 is saturated through a winding 4 energized by current from the battery 9, whereas the aerial inductance 5 is unsaturated. When the aerial current is established, energy is transferred across the coupling 7 and is rectified by a diode 8. The resulting current neutralizes the saturation of the inductance 3 but saturates the inductance 5 through a winding 6. Rectified current from the aerial may similarly be arranged to operate the contacts 4, 5 of Fig. 1.
Patent GB-754894-A (GB)
Title: Improvements in an air velocity meter
IPC: G01L7/00
Filed: 1954-08-06
Abstract: 754,894. Air-velocity meters. OBERMAIER, J. A., and OBERMAIER, A. A. Aug. 6, 1954, No. 22942/54. Class 69 (I). A portable air-velocity meter comprises a sealed rectangular casing 15 with an inlet 35 and outlet 36 in two opposite side walls, and a velocity-measuring channel 26 in two sections, a straight upper part 26a to which the inlet 35 is connected and a curved lower part 26b with a vane 40 on an arm 41 rotatable therein on a shaft supported in a bearing 43, a bleeder passage with an adjusting screw 93 being formed as a continuation of channel 26a for calibration of the meter. The inlet 35 comprises a range-selecting device, whereby either the aperture 86 or a smaller aperture in the plate 84 is used to admit air. This is effected by rotation of the cap 78 which has a lug 89 engaging a recess 91 in plate 84 to rotate it about a lug 87. Movement of vane 40 is transmitted to a pointer on a two-range scale.
Patent GB-666048-A (GB)
Title: Improvements in and relating to mounting strips and electrical wiring tags for mounting thereon
Inventor: HEATH CLARENCE WILLANS
IPC: H01R9/16
Filed: 1949-09-05
Abstract: 666,048. Binding-posts; distribution boards. CARR FASTENER CO., Ltd. July 27, 1950 [Sept. 5, 1949], No. 22960/49. Class 38 (i). An insulating mounting strip 1 carrying sheet-metal terminal tags is of T-shaped cross-section, the outer face of the T-head having transverse slots 2 in which the tags are seated and the edges of the opposite face of the T-head having chamfered portions 4 over which extend lugs 10, 11 on the tags. Each tag comprises a central body 5 with laterally-extending terminal portions 6 and having an open-sided recess 9 at each side of the open side of which the lugs 10, 11 are located. One or both of said lugs is bendable normal to the plane of the tag to enable the tag to be passed over the head of strip 1 during mounting. A slit 7 in the body 5 permits the parts on each side thereof to yield, thereby enabling the tag to be mounted on strips of slightly varying dimensions. Slots 14 in the strip enable a number of strips to be stacked with the bodies 5 disposed in said slots.
Patent GB-265098-A (GB)
Title: Regulating device for clockworks
IPC: G04B17/22
Filed: 1926-09-17
Abstract: 265,098. Dubois, W. A. Sept. 17, 1926. Balances.-A selfcompensating spiral spring is associated with a unimetallic balance a having separated sectors b which form a substantially complete rim, c and d being the slight airgaps. At two or more of the free extremities of the arcs compensating masses e are permanently secured to the balance. Nuts f form adjustable stops to limit the play of the bimetallic parts of the rim. Modifications are shown in which the rim is cut at various points, or three radial arms are used, or the compensating metal e is applied in different ways to the rim.
Patent GB-839545-A (GB)
Title: Improvements in or relating to electric trigger devices
Inventor: FROGGATT ROBERT JUSTIN
IPC: H03K3/02
Filed: 1955-08-11
Abstract: 839,545. Magnetic signal-storage apparatus. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 13, 1956 [Aug. 11, 1955; Dec. 14, 1955], Nos. 23121/55 and 35852/55. Class 40 (9). [Also in Group XL (c)] In a circuit employing a device 1 exhibiting the Hall effect when an electric current 5 and a magnetic field 7 are applied in mutually perpendicular directions, a regenerative coupling is provided whereby the Hall potential induced in response to a transient signal which initiates the magnetic field can be at least temporarily selfsustaining after the signal ceases. The current 5 is maintained by a supply 4 and the magnetic field 7 is generated by current flowing through coils 6. The Hall effect electrodes are connected to the input terminals 9, 10 so that the potential is fed back to maintain the current flow in the coil. The circuit may have three stable states with zero magnetic field or magnetic field in one or other direction. The coil 6 may be wound on a ferro-magnetic core 11, the remanence of the magnetic circuit being arranged to be sufficient to restore the device to its original condition when the energizing current has been switched off and on again. It is stated that the device may operate as a circuit with at least one unstable state by including a time constant circuit in the regenerative circuit.
Patent GB-744199-A (GB)
Title: Improved gasket cutting machine
Inventor: FREWER SIDNEY THOMAS
IPC: B26F1/38
Filed: 1953-08-21
Abstract: 744,199. Cutting-machines. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 13, 1954 [Aug. 21,1953], No. 23126/53. Class 31 (1). A gasket cutting-machine comprises a turntable 11 to which gasket material 16 is clamped by means of a nut and washer 17, a pivotallymounted marker means 18, and pivotally-mounted cutter means 19, the marker and cutter means being adapted to be brought selectively into contact with the gasket material. Each cutter means comprises an arm 19a slidably mounted on a graduated runner 19b which is pivotally mounted on uprights 19d secured to a bed-plate 10, a cutter 19e being mounted on the arm 19a and being moved into the operative position by means of a spring-influenced handle 19h which serves to mask the cutter when the latter is in its inoperative position. The marker means comprises a marker 18c slidably mounted on a graduated arm 18a which is pivotally mounted on an upright 18f. The turntable is rotatable by a handle 14 through bevel gearing 13 and is provided with graduations with which a pointer 15 fixed on the bed plate 10 co-operates so that by suitable indexing of the turntable, the position of holes to be subsequently punched can be indicated by the marker means. Only one cutting means may be provided.
Patent GB-1269500-A (GB)
Title: New water-soluble methine dyestuffs
Inventor: MANSON JOHN STUART
IPC: C09B23/10
Filed: 1968-05-15
Abstract: 1,269,500. Dyeing synthetic fibres with methene dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 24 April, 1969 [15 May, 1968], No. 23135/68. Heading D1B. [Also in Division C4] Water-soluble methin dyes free from sulphonic and carboxylic acid groups of formula: (in which R is H or optionally substituted 1-4 C alkyl; R' is CH 3  or C 2 H 5 ; A is H, halogen, alkyl, alkoxy or NO 2 ; B is H, Cl, OCH 3 , OC 2 H 5 , carbomethoxy or carboethoxy; Z is an anion), are used for dyeing (A) polyamide, cellulose esters and acrylonitrile or dicyanoethylene polymers or copolymers using an acid, neutral or slightly alkaline bath at 40-120‹C, and (B) polyesters and cellulose esters using a bath having pH 7-9 at 90- 150‹C, in the presence of a carrier or followed by heat treatment at 180-220‹C.
Patent GB-784992-A (GB)
Title: Improvements in and relating to control mechanism for hydraulic presses
Inventor: TOWLER JOHN MAURICE
IPC: B30B15/18
Filed: 1954-08-10
Abstract: 784,992. Hydraulic presses. ELECTRAULIC PRESSES, Ltd. July 22, 1955 [Aug. 10, 1954], No. 23159/54. Class 69 (2). Stroke control mechanism for an hydraulic press comprises a tappet rod 5 mounted in a bracket fast with a moving table 2 of the press and co-operating with a selected one of three tappet rods 11, 12, 13 slidably mounted in a rotatable turret 8, the selected tappet rod cooperating with a spring tappet 14 which, through a suitable linkage, operates a pilot valve 19. The pilot valve actuates a control valve which reverses movement of the press table 2. Two turrets are attached to diagonal corners of the press base and the associated spring tappets actuate through suitable linkages levers 17, 17<1> bearing on a crosshead 18 which may either directly actuate the spindle of the pilot valve 19, or (as shown), actuate a lever 26 co-operating with the valve spindle. The free end of lever 26 is supported by a spring 29 which is fulcrumed on a piston 30 and is subject to the pressure of a piston 27 which is subject to the same pressure as the main press cylinder. Deflection of spring 29 by the piston 27 provides compensation for stretching of the press frame. Release of pressure below piston 30 renders the stroke control mechanism inoperative. Specification 732,775 is referred to.
Patent GB-1117951-A (GB)
Title: Decorating methods and apparatus
IPC: B41F17/18
Filed: 1965-06-01
Abstract: 1,117,951. Electrostatic printing apparatus. OWENS-ILLINOIS Inc. 1 June, 1965 [1 June, 1964], No. 23227/65. Heading B6C. The curved surfaces of hot glass articles are decorated with coloured frit particles which are electrostatically applied to the articles from an offset plate imaged by a screen stencilling process. The apparatus shown, Fig. 1, for individually decorating curved surfaces of hot glass articles B comprises a conveyer 80 for moving the articles to a decoration transfer station and an endless conveyer 60 for transporting a plurality of offset plates 62 from a screen stencilling station 78 to the transfer station in a step-by-step movement synchronized with the transport of the articles to the transfer station. The offset plates are imaged with electrically chargeable frit particles by the screen stencilling process and each article is decorated at the transfer station by applying a voltage potential between the article and the associated imaged plate whilst rolling the article relative to the plate. Each offset plate may be screen imaged at a plurality of stencilling stations each applying a different coloured frit. Alternatively the stencilling stations PA1, PA2, PA3, Fig. 14 (plan), may be simultaneously actuated to apply images to all the offset plates 210 of a first group, each step of movement of the plates being of a length such that upon movement of said first group of plates from the stencilling stations a second group of plates equal in number to the first group is registered therewith. At the transfer station PS1, PS2, PS3 all the imaged plates of a group are simultaneously registered with a corresponding number of articles B for the simultaneous transfer of images from the plates to the articles. After use the offset plates are cleaned by a brush 238. Each offset plate, which is mounted on a carrier supported on the endless conveyer, is either automatically pivoted into image transferring relationship with an article at the transfer station or is automatically removed therefrom temporarily for the transfer operation. The latter method is used for printing on frusto-conical articles such as tumblers. Screen-stencilling apparatus.-This apparatus comprises a powder container 78, Fig. 2, having a bottom defined by a stencil screen 116. The offset plate 112 is elevated into face-to-face contact with the screen 116 and the latter is imaged by expressing particles through the image apertures by a pneumatically operated brush 120. In order to minimize the possibility of smearing the freshly imaged plate is swung away from the underside of the screen 116.
Patent GB-424429-A (GB)
Title: Oscillation generators for scanning in television and like systems
IPC: H03K4/92
Filed: 1933-08-21
Abstract: 424,429. Generating circuits using gas-discharge tubes. RADIOAKT.-GES., D. S. LOEWE, 10, Wiesenweg, Steglitz, and SCHLESINGER, K., 39, Friedrichstrasse, Friedrichshagen, both in Berlin. Aug. 21, 1933, No. 23229. Convention date, Aug. 30, 1932. [Class 40 (v)] The condenser 9 of a relaxation oscillation. generator is charged from a D.C. source 1 associated with a glow-discharge device 3. The source 1 feeds the device 3 through a series resistance 2 preferably of the known ferric-hydrogen type, and the device 3 supplies a constant voltage which charges the condenser 9 through a variable resistance 7 and inductance 8. The condenser is periodically discharged through a glow lamp 10, the grid electrode of which is negatively biassed by connection through a resistance 22 to the cathode of the device 3, whilst the cathode of the lamp 10 is connected to an intermediate electrode of the device 3. The voltage on the condenser 9 is applied through a condenser 14 and potentiometer 13 to the grid of a pentode or other amplifier 23, the plate and screen voltage of which are supplied from the device 3. The amplifier grid is biassed from a potentiometer 15 connected across two electrodes of the device 3. The amplifier 23 operates the deflecting-electrodes of one or more cathoderay television apparatus, the potentiometer 13 regulating the size of the picture, and potentiometer 15 its position on the screen. The inductance 8 in the charging circuit, or an impedance network substituted therefor, gives a straight-line charging curve over a long range. The same glow-discharge device may feed two relaxation circuits, one generating the picture frequency, the other the line frequency. The latter may be adjusted by varying the resistance 7. Synchronizing impulses are applied to the grid of the lamp 10 through a condenser 20 and resistance 21.