baber/WOPTO huggingface dataset:
Patent GB-796657-A (GB)
Title: Device for the comparison of two beams of radiation by means of a phase-comparison system
IPC: G01J3/42
Filed: 1955-11-11
Abstract: 796,657. Photo-electric light measurement. PERKIN-ELMER CORPORATION. Nov. 11, 1955 [Nov. 12, 1954], No. 32262/55. Class 40 (3). In a device for comparing the intensities of two beams of radiation, the latter are cyclically intercepted by a chopper before they fall on to a radiation detector, each cycle comprising three periods such that during the first period only one beam falls on the detector, during the second period only the other beam falls on the detector and during the third period neither beam falls on the detector, the phase of the voltage produced by the detector is compared with the phase of a comparision voltage having the same frequency as the chopper and the phase difference between these voltages is used as a measure of the intensity difference between the beams. As shown, beams of radiation RB and SB from a source 1 are reflected on to a rotary chopper 7 before passing to a dispersion device 14 and a radiation detector 15. The chopper 7 is rotated by a motor 16 and comprises two part-annular blades one of which is reflecting and the other non-reflecting so that during each rotation of the chopper beam SB passes through the space between the blades, then beam RB is deflected by the reflecting blade and finally both beams are intercepted by the non-reflecting blade and no radiation falls on the detector 15. This detector, e.g. a thermocouple, generates a voltage the phase of which is compared in a device 18, e.g. a phase-sensitive rectifier with the phase of a comparison voltage supplied by a generator 21 at the chopping frequency. The output from the rectifier 18 feeds a servomotor 19 to rotate the stator of the alternator 21 and thus alter the phase of the comparison voltage until the two voltages are 90 degrees out of phase. When this occurs the rectifier output is zero and the adjustment of the stator which may be recorded by a device 22, is a measure of the intensity difference between the beams. The generator 21 may comprise a rotor in the form of a semi-circular diaphragm 34 which is rotated at the same speed as the chopper 7 so as to intercept once per revolution the light path from lamps 32, 33 to a photo-cell 31, the lamps and cell being supported on a plate 30 rotatable by the servomotor 19 so as to alter the phase of the voltage produced by the cell. The influence of stray radiation may be avoided by the use of an additional chopper.
Patent GB-987077-A (GB)
Title: Lamp control
IPC: H05B39/08
Filed: 1963-08-15
Abstract: 987,077. Controlling lamps. STANDARD TELEPHONES & CABLES Ltd. Aug.15, 1963 [Aug. 23, 1962; Aug. 30, 1962], No. 32294/63. Heading G1A. Lamps LS whose brightness is to be controlled in dependence upon the surrounding luminous density Bu are supplied with voltage from the mains through silicon controlled rectifiers G1 and G2 and have connected in parallel a transformer U3 used to supply a comparison lamp LV which shines on a photoresistor RF2. The photoresistor RF2 is connected in a bridge circuit with a further photoresistor RF1 whose resistance is dependent upon the surrounding luminous density. When the surrounding luminous density Bu increases, the resistance of RF1 is reduced and the voltage applied to the base of a transistor Trs1 which forms part of a differential amplifier DV becomes more positive and this variation is amplified and caused to change the bias of a transistor Trs3 of a phase shift bridge PB in which the output hrs its phase shifted in relationship with that of a transformer U1 connected to the mains as a function of the modulation of the transistor Trs3. This phase shifted A.C. is applied to a trigger TR and when it reaches a predetermined threshold value it causes the trigger to transmit a pulse via the transformer U2 and rectifiers G3 and G4 to the rectifiers G1 and G2. Due to the increase in positive voltage applied to the base of Trsl the time of triggering of each rectifier G1 and G2 is advanced so that the lamps LS receive a current of higher r.m.s. value and thus become brighter. This also brightens the lamp LV and eventually the circuit is balanced. The circuit elements are chosen so that the sensitivity of the apparatus to changes in surrounding luminous intensity closely follows that of the human eye.
Patent GB-220876-A (GB)
Title: Improvements in and relating to metallic stuffing box packings
IPC: F16J15/28
Filed: 1923-12-27
Abstract: 220,876. Dixon, G. H. Dec. 27, 1923. Packing, metallic; packing, removable casings, containers, or carriers for. - A stuffing-box contains two segmental packing rings 2, having wedge pieces 3 between the segments, the segments and wedge pieces being pressed inwards by springs 16. Each packing ring is contained in a carrier ring 4 of L-section, the mouth of which is closed by a ring 8 with a peripheral split packing ring. The two carrier rings are separated by a ring 10, with a peripheral split packing ring or rings, and are pressed axially by a single spring or a number of springs 15. A spherical ring 13 is interposed between the gland and the packing. To facilitate assembly, the rings 4, 8, 10 and 13 may be made in parts secured together. In a modification, the wedge pieces 3 are dispensed with, the segments being then more numerous, and compressed by radial springs or a garter spring. For small rods the container rings 4 and the spherical ring 13 are dispensed with. In this case the rings 8 make contact with the walls of the stuffing-box and one ring 8 is interposed between the packing rings, and another ring 8 is interposed between the inner packing ring and the end of the box. For a rotating shaft a single packing ring with a single container ring 4 is employed, the latter having a peripheral split packing ring making contact with the wall of the stuffing-box. In this case, rotation of the packing is prevented by screws or pins entering holes or slots in the carrier ring,. the packing segments and wedges and the ring 8.
Patent GB-341952-A (GB)
Title: Improvements in or relating to artificial silk-spinning centrifugal apparatus
IPC: B04B9/12
Filed: 1929-10-24
Abstract: 341,952. Lubricating bearings. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 24, 1929, No. 32315. Convention date, Oct. 29, 1928. [Class 12 (ii).] In centrifugal apparatus for spinning artificial silk wherein the box or can is carried by a flexible shaft coupled by means of a conical seating to a hollow motor shaft dipping into an oil reservoir, passages 6 are provided in the seating where whereby oil is drawn to the interior of the shaft and passes through holes to the top and bottom bearings 10, 11, thence to the reservoir. An annular groove 8 prevents creeping of the lubricant beyond the level of the holes 9. Bearings may be arranged above as well as below the rotor, suitable arrangements being made for the return of the oil from the top-bearing to the reservoir.
Patent GB-741708-A (GB)
Title: Improvements in or relating to multiplex pulse signalling systems
IPC: H03K5/01
Filed: 1953-11-23
Abstract: 741,708. Multiplex pulse signalling. TELEFUNKEN GES., [formerly TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE]. Nov. 23, 1953 [Nov. 22, 1952], No. 32364/53. Class 40 (5). For selecting and demodulating phase-modulated channel pulses in a multiplex communication system, regularlyoccurring negative channel-selecting pulses from terminal 13 through condenser 15 and diode 16 reverse the charge on condenser 11, to form the leading edge of a duration-modulated pulse on the condenser, the trailing edge of which occurs when the next positive channel pulse from terminal 7, through condenser 9 and diode 10, again reverses the charge on condenser 11. Leak resistances 12, 17 are dimensioned to produce such bias voltages that the circuit only responds to the channel pulse immediately succeeding a selecting pulse.
Patent GB-304379-A (GB)
Title: Improvements in advertising signs and the like
IPC: G09F13/14
Filed: 1927-10-24
Abstract: 304,379. Bridgman, V. Oct. 24, 1927. Signs.-Daylight reflector signs having an inclined mirror and a stencil &c. which is placed either above the mirror or in front of it, are adapted for artificial illumination by providing an adjustable mirror which can be set to reflect day. light or can be moved to expose lamps for artificial illumination. The stencil 1, Fig. 1, is mounted in the upper part of the casing 3 and the mirror 2 is hinged or pivoted at its upper end as by a pivoted arm 4 and is provided with spring-pressed guide pins 7 engaging arcuate slots 6 with inturned ends in the casing. The mirror can be set in the inclined position, as shown to reflect the sign image through the front aperture 8, or it can be raised to the dotted line position so as to obscure the stencil 1 and expose lamps 10 which illuminate a second stencil 8 mounted on a pivot 9 provided with a coiled spring so that the stencil moves upwards into position when the pressure of the mirror is removed. The second stencil may be otherwise arranged. When the stencil 1, Fig. 2, is arranged at the front of the sign, the mirror 2 is moved upwards to obscure the top of the casing and expose the lamps 10 which then illuminate the stencil. The movement of the mirror into its raised position and the switching on of the lamps may be interconnected. The casing may be open at the rear when an external artificial source of light is used and it may be open underneath to illuminate a shop window &c.
Patent GB-1430722-A (GB)
Title: Sliding clasp fastener stringer with scoops fabricated of a continuous filament
IPC: A44B19/12
Filed: 1974-07-23
Abstract: 1430722 Sliding clasp fastener stringers YOSHIDA KOGYO KK 23 July 1974 [24 Aug 1973] 32488/74 Heading E2S The invention relates to a pair of stringers for a sliding clasp fastener wherein each of said stringers includes a tape 10, 10' and a continuous fastener filament 11, 11' anchored to said tape, the filament being shaped in zig-zag configuration to provide a row of substantially U-shaped scoops 12, 12' which extend transversely of said tape and each of which consists of a pair of parallel legs 13, 14; 13', 14' and a coupling head 15, 15 interconnecting said legs at the front end of the scoop, one 14, 14', of said legs being longer than the other leg and being folded over at 16, 16' toward said coupling head to provide a folded portion 17, 17' which is sandwiched between said legs 13, 14; 13', 14' in registered relation thereto. The fastener stringers are characterised in that, a series of front connecting portions 18, 18', each interconnecting the front ends of said folded portions of the two adjoining scoops on each tape, are so positioned relative to the scoops on each tape that, when the scoops on both tapes intermesh, the coupling heads of every other scoop on each tape will abut on the corresponding front connecting portions of the other tape whereby the meshing depth of the scoops on both tapes T, T is determined by the position of the front connecting portions relative to said scoops, the continuous filaments 10, 10', which are secured by sewing threads 20, 20' respectively to the tapes 10, 10', are made of metal, synthetic resin, or like material. In a modification, Fig. 3 not shown, the upper leg (13a) is made longer than the lower leg (14a) of each scoop.
Patent GB-1162820-A (GB)
Title: Framed Textile Fabric Assembly
Inventor: SAUNDERS DONALD
IPC: A47L9/14
Filed: 1966-07-21
Abstract: 1,162,820. Reinforcing edges of non-metallic sheet material. BRITISH NEEDLE CO. Ltd. 19 July, 1967 [21 July, 1966], No. 32830/66. Heading B5K. [Also in Division B1] A piece of fabric 10 has an edge reinforcement including a stiffener rim and a pair of layers 13, 14 of thermoplastic synthetic resin material welded together at 16 internally of the rim through the weave of the fabric 10. In the embodiment of Fig. 2, an embroidery device comprises a circular piece of fabric 10 supported by a ring 11 comprising an annular stiffener 12 of card, millboard or hardboard and the layers 13, 14 welded together directly at 15 as well as through the fabric at 16. The layers 13, 14 may be embossed or printed to simulate woven or corded fabric, wood or bamboo. In another embodiment, Fig. 4, a disposable filter bag for a suction cleaner is formed from a thermoplastic synthetic resin sheet 21 which is folded, pleated and welded to form a bag with a reduced neck (22), Fig. 3 (not shown). A rectangular fabric filter insert 24 is laid over a hole in the sheet 21 to overlap the edges thereof. A card stiffener 25 is held around the insert by a thermoplastic synthetic resin sheet 26 welded directly to the sheet 21 and through the insert 24 to the sheet 21.
Patent GB-1345003-A (GB)
Title: Controllable pitch propellers
IPC: B64C27/54
Filed: 1971-07-13
Abstract: 1345003 Variable pitch propellers A FEROY 13 July 1971 [21 Sept 1970] 32879/71 Heading B7V A variable pitch propeller of the kind in which the pitch of the blades (15) is adjusted by a piston 25 and a cylinder 23 which are movable in opposite directions and which are each connected through pairs of crossheads 17, 18 to pairs of crank pins 16, each pair of pins being operatively engaged with the root (14) of one of the blades to pivot it in the hub (10); is characterized by the provision of self aligning connections A, B between the piston, the cylinder and their associated crossheads to equalize the loading on the crank pins. Rod 26 has a head 28 (Fig. 9) provided with spherical surfaces which mate with surfaces 30, 31 on the piston 25 or cylinder 23, and a retaining washer 36. The Specification describes in detail the application of the imvention to three, four and five bladed propellers.
Patent GB-1145909-A (GB)
Title: The production of 4'-demethyl-epipodophyllotoxin and intermediates therefor
Inventor: WARTBURG ALBERT VON
IPC: C07D493/04
Filed: 1966-07-21
Abstract: 1,145,909. Production of 4<SP>1</SP>-demethyl-epipodophyllotoxin. SANDOZ Ltd. 21 July, 1966 [21 Sept., 1965 (2)], No. 32891/66. Heading C2C. 4<SP>1</SP>-Demethyl-epipodophyllotoxin of the formula is prepared by reacting podophyllotoxin with hydrogen bromide or hydrogen chloride, reacting the epipodophyllotoxin bromide or chloride produced with hydrogen bromide and hydrolysing the 4<SP>1</SP> - demethyl - epipodophyllotoxin bromide produced. Therapeutic compositions having selective inhibiting effects on dividing phenomena in the cell nucleus, contain 41-demethyl-epipodophyllotoxin as active ingredient. The composition may be in a form suitable for enteral or parenteral application. The invention also comprises (4<SP>1</SP>-demethylepipodophyllotoxin bromide as a new compound.
Patent GB-534116-A (GB)
Title: Improvements in control devices for gas producers
IPC: C10J3/30
Filed: 1939-12-28
Abstract: 534,116. Photo-electric control of gas producers. POWER-GAS CORPORATION, Ltd., RAMBUSH, N. E., RUTHERFORD, R. W., WRIGHT, G., and ANDREWS, P. A. Dec. 28, 1939, No. 32948. [Class 40 (iii)] [Also in Group XII] Relates to full feed devices for water-gas and other gas producers comprising a bunker, Fig. 1, between a hopper 5 and a charging chamber 2. According to the invention, a lamp 21 is adapted to send a beam of light to a light sensitive cell 16 across the top of the charging chamber 2 below a discharge valve 4 at the bottom of the bunker; and when the level of fuel in the charging chamber falls and allows the beam to reach the cell, the valve 4 is closed and a valve 3 at the top of the bunker 1 is opened to refill the bunker from the hopper 5. In addition, a lamp 20 is adapted to send a beam of light to a light sensitive cell 15 across the top of the bunker 1 below the valve 3 ; and when the bunker fills up and the beam is obstructed, the valve 3 is closed and the valve 4 is opened. The valves may be operated by hand wheels 11, 18 connected by screw and nut devices 13, 19 to link work 9, 17 connected to the valves, the desired operations being performed when predetermined signals are given by relays controlled by the light sensitive cells. Or, these relays may automatically start and stop power mechanism for operating the valves. The light sensitive cell 16 is protected from heat and dust as shown in Fig. 2. The cell is mounted on a column 23 inside a glass tube 27 slidably fitted in packed joints 26 on a socket 25 attached to the side of the charging chamber 2 with interposed heat insulation 29. Air flowing through the glass tube keeps the cell 16 cool. The glass tube may be slid up to the dotted line position for periodic cleaning, and slid down again. A slide valve 28 in the socket 25 may be closed when it is desired to remove or replace the glass tube. In a modification, the glass tube is rotatably mounted ; and in another modification, a pair of slide valves 28 of glass are provided side by side, and one is removed for cleaning while the other is in operative position.
Patent GB-898726-A (GB)
Title: Improvements in or relating to footwear-counter-stiffener molding apparatus
IPC: A43D11/12
Filed: 1960-01-19
Abstract: 898,726. Moulding shoe stiffeners. SCAMMON, H. G. Jan. 19, 1960 [Jan. 26, 1959] No. 33292/60. Divided out of 898,725. Class 17(1) A counter-stiffener moulding machine of the Stewart type in which the male mould 10 is pivotally supported for forward angular movement to facilitate unloading comprises a pivotally mounted loader, as described in Specification 898,725, movable from a forward counter blank-receiving position up to a counter blank delivery position at the front face of the male mould 10, and a connection between the loader and the mould 10 such as to tip the mould 10 forwardly about its pivotal axis during the latter part of the movement of the loader to its blank receiving position and to tip the mould 10 rearwardly to a position beneath the female mould 14 during the early part of the movement of the loader to its blank-delivery position. The post 12 which carries the mould 10 ispivotally supported by a pin 72 between a pair of spaced ears 74 at the top of a member 76 and carries an arm 78 at the far end of which is a flange 82 connected to a fixed part 86 of the machine by a spring 84. Normally the spring 84 holds the arm 78 in a horizontal position and hence the male mould 10 perpendicular. Arms 88 are pivotally mounted on the machine frame by pins 64, which also pivotally support the arms 62 of the loader, and the rear ends of these arms are adjustably connected to the arms 78 by a rod 90, one end of which is pivoted to the arm 78. The forward ends of the arms 88 have projections 94 which underlie the arms 62 so that, during the latter part of the downward movement of the loader, the arms 62 engage the projections 94 and swing the arms 88 in a counterclockwise direction, as seen in Fig. 1, thereby tilting arm 78 and the mould 10 forwardly. When the loader is moved upwardly, disengagement of the arms 62 from the projections 94 allows the spring 84 to return the arms 78, 88 to their normal positions so that the male mould 10 stands upright beneath the female mould 14 in readiness for receiving the counter-stiffener blank as the loader reaches its delivery position.
Patent GB-1466087-A (GB)
Title: Railway bogie assemblies
IPC: B61F3/10
Filed: 1974-07-29
Abstract: 1466087 Railway bogies CREUSOT-LOIRE 29 July 1974 [13 Sept 1973] 33399/74 Heading B7L A railway bogie assembly comprises bogies 3 connected by lateral equalizing-bars 10, the bars 10 being articulated to cross-members 5 of the bogies by part-spherical bearings 8 and by spigots 11 on the bars rotatably engaging sleeves 13 held between upstanding ears 14 on the cross-members. Reinforced rubber blocks may be placed between the sleeves 13 and ears 14. Alternatively, the sleeves may be connected to the cross-members by articulated rods. One bogie may be replaced by a single wheel set.
Patent GB-1356447-A (GB)
Title: Apparatus for collecting wire bundles
IPC: B21C47/24
Filed: 1971-07-16
Abstract: 1356447 Coiling rod or wire FRIEDRICH KOCKS 16 July 1971 [19 Aug 1970] 33418/71 Heading B3E A frame 12 having two mandrels 8, 10, is rotatable about an axis 14 inclined at 45 degrees to the vertical so that each mandrel can be moved between a vertical loading station, where wire loops are guided by a cylinder 4 onto the vertical mandrel to form a bundle, and a horizontal discharge station where the bundle is removed from the horizontal mandrel by the axial displacement of a remover 30. In operation wire rings are guided by the cylinder 4 from a cooling bed 2 onto the mandrel 8 whose remover 30 is in the raised position. As the bundle is formed the remover is lowered by a piston and cylinder assembly 46 due to the engagement of a flange 52 on the remover with a flange 50 on the piston rod of the assembly. On completion of the bundle forming a plate 6 is slid across the base of cylinder 4 to prevent further rings falling onto the mandrel. The frame 12 is then rotated about axis 14 until the mandrel 8 is in the horizontal position and the mandrel 10 is in the vertical loading station. The bundle is discharged onto a rod 54 by moving the remover 30 towards the rod 54 by a piston and cylinder assembly 48. To aid the transfer, a rail 56, flush with the external surface of the mandrel is displaced towards the rod 54 by a piston and cylinder assembly 58. On completion of the transfer the remover 30 is retracted by the assembly 48, this movement also causing the rail 56 to be retracted due to the engagement of stop 60 with flange 62.
Patent GB-908540-A (GB)
Title: Foot-operable devices of power-driven vehicles, especially for operating differential locks of tractors
Inventor: SELLE HEINZ
IPC: G05G25/00
Filed: 1960-09-29
Abstract: 908,540. Differential control; linkwork. SCHLEPPERWERK NORDHAUSEN VEB. Sept. 29, 1960, No. 33439/60. Classes 80 (2) and 80 (3). [Also in Groups XXVII and XXXI] A pedal-operated control for a motor vehicle comprises a first arm rigid with a second arm and operating a lever actuating a differential lock, accelerator or the like, the arms being movable from one end position through or into a dead centre position and into a second end position, means being provided for returning the arms from the second to the first position. In one form, an arm 1, Fig. 1, is fast with a second arm 2 and with a lever 3 and is turned about its pivot 4 in order that the end of the third lever may slide over a cam surface 9 on a lever 8 thereby turned against the bias of a spring 10 so that a lever 6 engages a positive differential lock 7. The lever 3 has now moved to an over-centre position, and the differential lock remains engaged. To disengage the differential lock, the lever 2 is depressed. As modifications, the end of the arm 3 may carry a roller engaging the cam surface 9, or the arm 1 may be connected to the lever 6 through a toggle linkage. In another form, Fig. 2 (not shown), the control actuates a carburetter throttle, and return from the over-centre position is effected through a connection with the vehicle clutch or brake pedal.