baber/WOPTO huggingface dataset:
Patent GB-485256-A (GB)
Title: Improvements in safety or relief valves
IPC: F16K17/04
Filed: 1937-08-21
Abstract: 485,256. Safety valves. GROSBY STEAM GAGE & VALVE CO., and KLAFSTAD, E. Aug. 21, 1937, No. 22990. [Class 135] In a spring-loaded safety valve in which the valve member or disc 20 is guided in a direction normal to the valve seat 22 by a tubular sleeve 28, the valve spindle 50 is sufficiently robust to avoid buckling by the loading spring 76 which acts on its outer end and is guided near its ends by separate guides 60, 62 so as to avoid the transmission of side thrusts to the valve disc. The valve seat 22 is formed on a flanged nozzle 16 screwed into the inlet of the valve housing 10 and carrying an adjustable screwed sleeve 34 with teeth 38 which can be engaged by an externally - operable set screw 36 to maintain the adjustment. A similar sleeve 40 is provided on the guide sleeve 28 and has teeth 44 engaging a set screw 42. The valve member 20 has an insert 24 mounted for slight rocking movements by a pin 26 and carries a nut 56 in which the spindle 50 is a close fit so that the valve can rotate relative thereto without any tendency to tilt. A ball thrust bearing 54 is interposed between the valve and spindle the parts being held together by a spring ring 55. The lower guide sleeve 60 is ported and is mounted in the sleeve 28 which is clamped to the valve housing 10 by a cooling extension 32 with radial fins between which steam is deflected by a collar 74. The upper guide 62 is mounted in the valve bonnet 72. The spindle 50 has a rounded end to co-operate with a spring seat 78 and carries an extension 84 passing through a spring adjustment sleeve 82 and carrying a collar 90 for engagement by a manually-operable lever 86.
Patent GB-886768-A (GB)
Title: Manufacture of sulphonated phosphonic esters
IPC: C07F9/40
Filed: 1958-07-17
Abstract: Wetting agents of formula <FORM:0886768/IV (b)/1> where R and R1 are C8-10 alkyl, and X is alkali metal or ammonium are prepared by heating a bis(C8-10 alkyl) ester of vinylphosphonic acid to 70 DEG C.-120 DEG C. with an alkali metal bisulphite or ammonium bisulphite in the presence of catalytic quantities of an oxygenyielding compound selected from alkali metal persulphates, ammonium persulphate, alkali metal perborates and alkali metal percarbonates.  Preferably 0.5%-5% by weight of catalyst based on the ester is used.  In examples R and R1 are n-octyl, n-decyl and 2-ethylhexyl and X is Na.  Specifications 841,886 and 858,057 are referred to.
Patent GB-149852-A (GB)
Title: Improvements in steam generators
IPC: F22B17/10
Filed: 1919-09-19
Abstract: 149,852. Wills, W. R. Sept. 19, 1919. Water-tube boilers.-A boiler of the horizontal-tube type comprises a bank d of feed-heating tubes situated above a bank e of generating-tubes, tubes c connecting the feed-heating tubes to a steam and water drum a, means for intercepting sediment in the steam and water drum, and means for conducting the water from the drum to the generating-tubes. Water passes from the steam and water drum through an internal passage a' opening near the water level, pipes g conducting the water to a water drum b, which communicates through a similar internal passage b<1> with the rear headers e<2> of the generating tubes. The feed-pipe f opens into a compartment f<1> at the top of the water drum, to which are connected the rear headers d<2> of the feed-heating tubes. To prevent priming, the steam and water drum is fitted with steam tubes i arranged in the path of the furnace gases and discharging into a steam outlet chamber formed by a partition across the top of the drum. The gases may escape through a top uptake, the baffling being suitably modified. The vertical baffle k may be dispensed with, the gases passing outside the rear header and the water drum. The transverse baffles may be built up of spaced sections.
Patent GB-847130-A (GB)
Title: Automatic control system for the scanning of workpieces by ultrasonic or like probes
IPC: G01N29/30
Filed: 1957-07-22
Abstract: 847,130. Automatic position control systems. HIRSCHMANN, F. July 21, 1958 [July 22, 1957], No. 23077/57. Addition to 806,606. Class 38 (4). In a system, as in the parent Specification, in which a probe, such as an ultrasonic transmitterreceiver, used in the non-destructive testing of workpieces is maintained in a desired position relative to the workpiece by utilizing an electrical condition of a liquid-filled region between the workpiece and an electrode on the probe to control the position of the probe automatically, capacity is the electrical condition utilized. This capacity may be supplied with current from a high-frequency oscillator and change of current with change in position may effect automatic control through a magnetic amplifier in the same manner as in the parent Specification. If more than one automatic control system is used to position the probe oscillators of different frequencies are used to prevent interaction. Non-conductive workpieces may be provided with a conductive surface layer as in the parent Specification or the workpiece may float on mercury or rest on metal powder. In the two latter cases the permittivity of the liquid should be considerably less than that of the workpiece, but the variation in the position of the probe due to the effect of variation in the thickness of the workpiece may be arranged, by suitable choice of permittivity, to be that required for ultrasonic testing. Alternatively the latter effect may be obtained by utilizing a signal, representative of thickness, from the probe itself to automatically vary the bias of the controlling magnetic amplifier.
Patent GB-380569-A (GB)
Title: Improvements in means for supporting the funnels employed in machines for spinning artificial silk
IPC: D01D7/02
Filed: 1931-08-17
Abstract: 380,569. Guide funnels for machines for spinning artificial silk. KIRKLEES, Ltd., BENNETT, A., and TONG, W., Tottington, Bury. Aug. 17, 1931, No. 23082. [Class 120 (ii).] The supports E of the guide funnels of centrifugal spinning-machines are pivoted to a link D coupled to an arm C pivoted on a bracket A secured to the traverse rail, and are provided with means, such as a pin e<2>, to engage an arm F also pivoted to the bracket A and maintained in the operative position by a stop a<3>, whereby when the parts are returned from the position they occupy when the cake is removed from the box, as shown in Fig. 2, the interengagement of the support and the arm F ensures the correct position of the funnel relative to the spinning-box. All the parts may be made of light metal such as aluminium or an aluminium alloy, of ebonite or of a phenol-formaldehyde condensation product.
Patent GB-959443-A (GB)
Title: Improvements in or relating to parametric amplifiers
IPC: H03F7/04
Filed: 1960-07-01
Abstract: 959,443. Parametric amplifiers. COMPAGNIE GENERALE TELEGRAPHIE SANS FIL. July 1, 1960 [July 6, 1959], No. 23086/60. Heading H3B. A parametric amplifier comprises two hybrid junctions 1, 6, having two pairs of arms 3, 4; 7, 10 connected by lines 15, 16 containing non- linear crystal diodes 11, 12; filters 17, 18 and 21, 22 being arranged to block the pump frequency and filters 19, 20 and 23, 24 being arranged to block the signal frequency. The signal input and signal output are connected to arms 2, 5 respectively of hybrid 1 and the arms 8, 9 of hybrid 6 are respectively connected to the pump source and to a dummy load. With arms of hybrids 1, 6 being arranged to introduce 90 degrees phase shift and the signal and pump frequencies respectively it can be shown that the combined incident energy reaching a hybrid from the lines 15, 16 is channeled wholly to the output 5 or the dummy load 9, as the case may be, none reaching either the input 2 or the source 8, so that instability caused by reflections due to mismatch is avoided. Filters such as 17, 18 are preferably open-circuited lines of length equal to an odd multiple of “ of the pump wavelength (#p) separated by a distance equal to an odd multiple of “ of the signal wavelength (#s). Filters such as 19, 20 have these dimensions interchanged. The lines 15, 16 and the filter lines are preferably of the threelayer sandwich type and may be printed circuits.
Patent GB-170696-A (GB)
Title: Improvements in thread guiding and tension mechanism for loom shuttles
IPC: D03J5/24
Filed: 1920-08-09
Abstract: 170,696. British Northrop Loom Co., Ltd., (Northrop Loom Co.). Aug. 9, 1920. Shuttles.-A thread guiding and tensioning device is formed as a, helix, about which the thread passes on its way to the shuttle eye. As shown in Fig. 1, the thread-tensioning device is formed of a flat bar 16 twisted or otherwise ribbed to form a helix, which may taper and is combined with any suitable threading-device 7. Fig. 2 is a cross-section along the line 2-2 of Fig. 1. The threading-device 7, comprising a solid block located in the shuttle 1, has two cylindrical holes, which cut into one another to form a thre,ading- slot 10. The forward end of the threading-device 7 has an inturned beak 11 having a rearwardlyextending horn 12, and may have a flanged portion 13 entering a complimentary notch in the body of the shuttle to secure the device in place. A shield 15 overhangs the lead 11, these parts being positioned to guide the thread into the threading-slots 14, 10 during the flight of the shuttle and retain the thread within the thread passage 8 and eye 5 after it has been introduced. Several methods of fixing the tension device 16 and the threading-device 7 are described.
Patent GB-185627-A (GB)
Title: Motor attachment for sewing machines
IPC: D05B69/18
Filed: 1921-09-02
Abstract: 185,627. Fairweather, W., (Singer Manufacturing Co.). Sept. 2, 1921. Sewing - machines; driving.-A motor C and a motor-controller D are both mounted on a bracket 17 which can be attached to the standard 7 of a foot-power drop-head sewing-machine, s o that a hand-lever 40, operating the controller, i s situated adjacent to the line of feed. A belt 25, which connects the motor pulley 26 and the machine pulley 16, can be tightened by means of an idler 24, mounted on a slotted arm 23 attached to the bracket 17. A lever 37, pivoted to the controlled case 30, is actuated by a pin 44, Fig. 3, depending from an arm 41 of the lever 40, 41; and a pin 38, depending from the lever 37, actuates in turn a spring contactor 34 which swings over contact points on a resistance element 31. The arm 40 of the lever can be operated by the fingers of the workguiding hand of the operator at will. The controller D and the motor C are wired up to a connection block 52 of fibre &c., which is adapted to receive a supply plug 55. A spring 47, adapted to slide between spaced guides 49 on the underside of the controlled casing 30, sustains part of the weight of the machine, when it is being swung into and out of the cavity 5. Specification 185,024 is referred to.
Patent GB-912152-A (GB)
Title: Improvements in convertible seat units
IPC: A47C17/17
Filed: 1960-07-04
Abstract: 912,152. Reversible seats; bed-settees. BUSS, S. P., and COMMER CARS Ltd. July 4, 1961 [July 4, 1960], No. 23346/60. Class 52 (2). A vehicle seat, particularly for use in a caravan, is arranged on a base frame so that it can be turned about a horizontal axis to face in either direction. To reverse the seat, a helical bolt 42 is withdrawn and brackets 24 slidden towards the opposite ends of stationary guide rails 21. The seat members 45, 46 are tilted backwards about their pivotal connections with brackets 24 to a position in which they are functionally interchanged. The seat is secured in this position by engaging bolt 42 in hole 40 in frame 27. Sleeves 26 are independently pivoted on brackets 24 and legs 34 of frame 35 pass through the sleeves and enter sockets 37 which are rigidly secured to frame 27. In order to convert the seat into part of a bed, brackets 24 are moved to the middle of rails 21 (Fig. 5) and legs 34 withdrawn from sockets 37 so that frame 35 can be angularly moved, together with sleeves 26, relatively to frame 27. When both frames 27 and 35 are in the horizontal position, legs 34 may be pushed through sleeves 26 (without engaging sockets 37) to close the gap between the cushions. To complete the formation of a bed, the back squab of a fixed and movable seat are placed on removable frame 60 and a back rest frame 57 attached to the movable seat frame 52.
Patent GB-171453-A (GB)
Title: Improvements in and relating to modulation systems and the like in radio communication and the like
IPC: H03C1/14
Filed: 1920-08-10
Abstract: 171,453. Taggart, J. Scott-, and Radio Communication Co., Ltd. Aug. 10, 1920. Thermionic modulating systems.-A two-electrode thermionic tube is utilized as a means for modulating high-frequency signal energy for telephonic or telegraphic transmission. As shown in Fig. 4, continuous high-frequency oscillations from a source S are fed into the plate circuit of the diode V1. In series in the same circuit are (1) a source B of constant electromotive force, and (2) a microphone transformer T, both being shunted by a condenser C. The potential of B is adjusted to a point such as V2, Fig. 2, on the characteristic curve of the diode, so that normally no current flows in the plate circuit and there is no output through the transformer L1, L2, to the amplifier V2 and the aerial. The effect of speech into the microphone M is to impose lowfrequency alternations of potential on the plate of the diode corresponding to the curve A2, Fig. 2, whereby a modulated current of amplitude varying from zero to the point V3 passes through the diode to the aerial. Fig. 6 is an example of a circuit wherein two such diodes are used to pass both halves of the low-frequency alternations. A three-electrode valve may be used in lieu of a diode, a steady negative potential being applied to the grid, and the modulating potentials being applied to the plate. Or the rectified impulses may be applied to the input circuit of one or more amplifiers, the output circuit being coupled to the aerial. Several diodes may be used in parallel, the plate potentials being graduated so that they become conductive in succession. The method may be utilized for the reception of signal energy.
Patent GB-868549-A (GB)
Title: Improvements in or relating to magnetic core storage elements
Inventor: FRANKLIN ERNEST
IPC: G11C11/06
Filed: 1958-07-21
Abstract: 868,549. Circuits employing bi-stable magnetic elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 7, 1959 [July 21, 1958], No. 23401/58. Class 40 (9). [Also in Group XXXV] In order to reduce the flux switching time of a square loop ferrite core 1 (Fig. 4), it is tightly coupled by a winding 3 to an auxiliary core 2. The dimensions of cores 1 and 2, the materials of which they are made and the numbers of turns of the coupling winding 3 which link with each core are so related that while switching of the core 1 from saturation in one direction to saturation in the other direction produces in core 2 only a fraction of the maximum change of flux density of which it is capable, the flux change produced in core 2 requires a substantially greater coercive current to produce it than is required for the switching of core 1. The ratio of the changes of flux density in core 2, to the maximum change possible in that core may be the same as the ratio of the coercive current needed by core 1 to that needed by core 2. The main core 1<SP>1</SP> (Fig. 6), may be arranged within the auxiliary core 2<SP>1</SP> for use in a matrix store, a smaller drive current being then required. The output conductor 5<SP>1</SP> may be linked with both cores or only with the auxiliary core 2<SP>1</SP> and may carry inhibit or partial drive currents for storing information in a coincident current matrix store. The coupling loop 3<SP>11</SP> (Fig. 7), may form part of the input winding 411 so that in a matrix store, the input conductors of storage elements mounted in parallel can be connected in series, each loop 3<SP>11</SP> being a metallic band which abuts against the bands of the two corresponding elements in the adjacent planes. The invention can be applied to multi-dimensional matrix stores, magnetic shift and scaling circuits and logical circuits. Long thin bar cores may be used instead of ring cores.
Patent GB-644352-A (GB)
Title: Improvements in or relating to the manufacture of spectacle frames
IPC: B29D12/02
Filed: 1946-08-07
Abstract: 644,352. Milling-machines. OSIPENKO, M., (trading as RUSSELL, H.). Aug. 7, 1946, No. 23466. [Class 83 (iii)] A method of manufacturing plastic spectacle frames comprises the steps of clamping together a blank, a templet having a guiding edge, and spacing means between the blank and templet, moving them so that an edge of the blank is fed progressively edgewise up to a rotary cutter, and controlling the edgewise movement of the blank by engaging the guiding edge of the templet with an abutment which has an arcuate guiding surface with an axis of curvature coaxial with the axis of the cutter, so that the blank is cut to the shape of a spectacle frame or component thereof. In one form, Fig. 5, the blank 3 is clamped in a jig between a templet 13, 19 having lens openings 21, 23, and a supporting plate 15 having clearance openings 33, 35, the jig which also comprises a clamping plate 17 being moved so as to engage the edges of the lens openings 21, 23 with a stationary or rotary annulus 25, lens openings being cut out of the blank by means of a rotary cutter 29. The blank is clamped in the jig by means of pins 56 which are urged endwise into engagement with the blank by flat springs 53. Spring fingers are provided to engage the edge of the blank and clamp it edgewise against a stop. The plate 15 is provided with pins 59 for supporting the jig on a work-table. The blank is heated initially and subjected to pressure to form a protuberance 5, part of which subsequently forms the nosepiece, and two holes are punched in the blank within the boundaries of the parts thereof which are to be cut away to form the lens openings, the cutter being inserted into the holes in turn to cut the lens openings to shape. The plate 17 may be used as a templet instead of the plate 13, 19. The edges of the lens openings are grooved and bevelled by means of three axially-aligned cutters, Fig. 13 (not shown), which are substituted for the cutter 29. Other jigs are provided for cutting the blank to the external contour of the spectacle frame, for shaping the sides, for bevelling and facing the outer face of each side, and for shaping the nosepads. Specifications 234,249, [Class 83 (iii)], and 644,353 are referred to.
Patent GB-864355-A (GB)
Title: Gate valve
IPC: F16K3/02
Filed: 1957-07-24
Abstract: 864,355. Valves. WILLIAMS, J. L. July 24, 1957, No. 23470/57. Class 135. A gate valve comprises a body formed by a pair of flanges 1 joined by a U-shaped element 6 into which a gate blade 21 projects for engagement with a valve seat 4, and which is provided with a continuous upstanding rib surrounding the gateblade where it projects from the body, and a packing-box unit 8, 9, through the blade projects, carrying packing 20 engaging the upper edge of the rib to form a seal therewith. Means, for example, a slot at each end of the plate 9 forming the upper side of the packing- box through which studs secured at their lower end of the valve body project and on which are threaded nuts 10a that bear upon the plate 9, are provided for adjusting the position of the packing-box unit relative to the rib and for forcing the packing on to the rib. A spring 7 mounted within the flow opening presses the gate blade on to its seat when it is in the closed position (shown). The internal parts 3, 4, 5, 6, 7 and 21 that are in contact with the controlled liquid may be made of a corrosion-resistant material, such as stainless steel, to enable the valve to be used for handling corrosive liquids. Specification 864,354 is referred to.
Patent GB-225317-A (GB)
Title: Improvements in or relating to folding towel and clothes airers
IPC: D06F57/12
Filed: 1923-09-20
Abstract: 225,317. Robinson, E. Sept. 20, 1923. Clothes-racks.-A collapsable towel or clothes airer comprises rails 1 for supporting the clothe, &c. mounted in holes formed in a block 2 which is pivotally supported at one end in members 5 secured to a wall-piece 12, the other end of the block being connected by levers 8 to the ends of a rod 9 by which the rails are either raised to an horizontal position or collapsed to a vertical position. The ends of the rod move in grooves 10 formed in the inner faces of the members 5. Specification 177,332 is referred to.
Patent GB-481102-A (GB)
Title: Improvements relating to coil winding machines
IPC: H01F41/06
Filed: 1936-08-27
Abstract: 481,102. Winding coils. CONNAUGHT SPARE PARTS, Ltd., and MADDOCKS, L. T. Aug. 27,1936, No. 23493. [Class 120 (ii)] In a coil-winding machine comprising a base, a carriage traversed by a single rotatable screw supported from the base, a double-acting dog clutch and associated gearing for effecting the rotation of the screw in one or other direction according to the direction of movement required to be imparted to the carriage, a spool or former for the coil supported from the base, guiding means associated with the carriage for moving the wire over the former and means associated with the carriage for automatically actuating the dog clutch for effecting a reversal of the drive of the screw when the carriage reaches the limit of its movement in one or the other direction, the wire is fed to the guiding means over a tension arm and means are provided for automatically correlating the feed to the tension on the arm. As shown the driven shaft 19, carrying the spool or former 20, supported from the base 9, is geared to a shaft 24 carrying pinions 25, 26, pinion 25 gearing with a pinion 27 loose on an extension 34 of the screw 34a and the pinion 26 driving through gears a second pinion 29 also loose on the extension 34 in a direction reverse to that of the pinion 27. The opposing faces of the pinions 27, 29 are provided with teeth and a toothed dog clutch 30 disposed between the pinions is splined on the extension 34 and can be moved by a rockable cradle 31 into engagement with one or the other of the pinions to drive the screw 34a. The cradle 31 carries a spring-pressed plunger 32 engaging a bar 33 having inclines 33a, 33b separated by a fiat surface 33c and provided with adjustable stops 40; the stops are provided with adjustable screws which are engaged at the end of each traverse of the carriage 38 to shift the bar 33 lengthwise and cause the plunger 32 to move from engagement with one of the inclines on the bar and engage the other and so shift the clutch 30 from engagement with one of the pinions 27, 29 into engagement with the other and so reverse the rotation of the screw. The bar 33 may be moved by a hand lever 33d to cause the plunger 32 to engage the flat surface 33c on the bar and hold the clutch out of engagement with the pinions 27, 29. The carriage 38 carries a split nut engaging the screw 34 and the parts of the nut may be separated by actuating a handle 35a carrying a cam when it is desired to adjust the carriage along the screw. The wire passes from a supply spool 10 over a guide 15a at the end of the tension arm 15 to guides 38b, 38c on the traverse carriage, the arm 15 being carried by a spring-controlled spindle 14, and carrying a pin which can bear on the underside of a lever 13 to lift a brake pad 12 into engagement with a cylindrical enlargement 10a on the spool to correlate the feed from the spool 10 to the tension on the arm 15 ; the lever 13 is supported by a spring 16 and the tension of the spring 17 on the spindle 14 can be varied by ratchet and pawl mechanism for adjusting the tension on the arm 15.