baber/WOPTO huggingface dataset:
Patent GB-964693-A (GB)
Title: Improvements in or relating to nuclear resonance absorption apparatus
IPC: G01R33/46
Filed: 1959-08-18
Abstract: 964,693. Magnetic testing apparatus. F. N. H. ROBINSON. Aug. 17, 1960 [Aug. 18, 1959], No. 28239/59. Heading G1N. Nuclear resonance absorption apparatus comprises a resonant tank circuit including an inductive coil winding for providing an oscillating field in a nuclear resonant material sample, amplifier means having its input and output terminals connected to the tank circuit and limiter means respectively, and a regenerative feedback circuit connecting the limiter output terminals to the resonant tank circuit to sustain oscillation at a low level in the inductive coil winding. A test sample 12 of nuclei-containing material is surrounded by a coil winding 10, shunted by capacitor 11, the coil winding being connected across the input terminals of amplifier 13. The amplifier is connected to a separate limiter device 14 and feedback over resistor Rf is provided between the output terminals of the limiter and the input of the amplifier. It is shown that the requirements for low-level operation are high amplifier gain and low value of feedback. Fig. 3 shows one form of circuit arrangement suitable for operation at oscillation levels of between 0. 025 and 0. 25 volts. An amplifier valve V1 has an output load comprising resistor R1 in series with inductor L1 which also forms the grid leak of a pentode limiter valve V2 having load R2, L2; feedback being by way of resistor Rf. The limiter valve V2 also serves as a detector, such that the output of valve V1 is rectified at the limiter control grid and is then applied after filtering by a network of resistors R3, R4, R5 and capacitors C1, C2 to operate a meter for monitoring the oscillation level and/or to drive an oscilloscope or other display means after filtering in a further network of resistors R6, R7 and capacitors C3, C4. A further arrangement Fig. 4 (not shown) has three stages of amplification preceding the limiter valve. The anode loads comprise resistors in series with respective inductances are arranged to tune with stray capacitances at 28 mc/s, thus making it possible to operate the arrangement within the frequency range 0. 2 to 20 mc/s and having an oscillation level of the order of 0. 0002 volts. A small feedback capacity is connected across the resistor Rf and operates to keep the phase shift of the feedback loop within acceptable limits at the upper frequency end of the range. Instead of using a valve limiter diode limiters may be used and a variety of different feedback arrangements may be used such as Figs. 5, 6 (not shown) in which the feedback is taken to the junction point of two series capacitors replacing the capacitor 11.
Patent GB-1312039-A (GB)
Title: Devices for use in producing x-ray photographs
IPC: A61B6/14
Filed: 1971-06-16
Abstract: 1312039 X-ray tubes I FISCHER [trading as IRMGARD FISCHER - ELEKTRONIK KONSTRUKTIONSBURO U WERKSTATTEN FUR ELEKTRO-U VAKUUMTECHNIK] 16 June 1971 [22 June 1970] 28253/71 Heading H1D [Also in Division H5] An X-ray tube for dental use comprises a casing 16, Fig. 3, for the cathode 13 and having a projecting anode tube 9 containing a conical target 17, the casing being rigidly secured to a mounting block 1 which is resiliently supported within a housing 4. The resilient support shown comprises springs 7 and a resilient link 2, but may alternatively comprise a resilient membrane or an arrangement of ball-and-socket joints in association with individual springs. A tube 15 protects the anode tube, and may be retracted to allow the anode tube to be exposed. In Fig. 3 the casing 16 includes a second cathode 14 adapted to bombard a target 10 which emits X-rays through a window 11 and aligned apertures in the housing 4 and in the tube 15 when in the position shown; in modifications the second X-ray source is omitted (Figs. 1 and 2, not shown) or provided by a separate X-ray tube arranged beside (Figs. 6 and 7, not shown) or behind (Figs. 8 and 9, not shown) the hollow anode tube. The casing 4 may contain the voltage generators required for energizing the tubes. The hollow anode tube is for panoramic photography of the whole mouth, so X-rays are emitted over a wide angle and would have different path-lengths and therefore different attenuations through a cylindrical anode tube; the variable attenuation may be avoided by shaping the tube so that all path lengths are equal (Fig. 4B, not shown) or by providing attenuating material on the outside of the tube and/or on an applicator surrounding the tube in order to equalize the attenuation. Focusing may be provided by an electromagnet or permanent magnet 5, or by electrostatic means. The casing is preferably a ceramic such as beryllium oxide which can absorb large bending moments and is permeable to the magnetic focusing field.
Patent GB-1477628-A (GB)
Title: Vehicle mud guards
IPC: B62D25/16
Filed: 1973-06-14
Abstract: 1477628 Vehicle mudguards M STIDSEN 10 June 1974 [14 June 1973] 28401/73 Heading B7J A vehicle mudguard, formed as a unit, has a top portion formed of crushed rubber or like material strip elements 10, 12, 14 releasably joined together longitudinally edgewise and end portions 4, 6 of metal plate, connected to the ends of the top portion by rivets or bolts and nuts 8. As shown in Fig. 3 the edge portions of the strip 12 are engaged in groove forming portions 22, 20 at the edges of the strips 10, 14. A metal strip 26 is received in a recess 24 in the strip portion 22 and rivets 28 pass through washers 32, the portion 22, the strip 26 and the latter and the rivet upper heads 34 are covered by the strip portion 22 which may be folded-up to give access to the heads 34.
Patent GB-340482-A (GB)
Title: Improvement in process of producing carbon black from oil refinery residues
IPC: C09C1/52
Filed: 1929-09-19
Abstract: In the production of carbon from oil refinery residues, heavy distillates are cracked under low pressure and at high temperature and the resulting gas is added to the gas formed during usual high pressure cracking operations and the mixed gases are burnt with incomplete combustion.  According to an example, petroleum residues are cracked at a pressure above 75 pounds per square inch and the residue, after distillation of the valuable constituents, is sprayed on to plates heated above 1000 DEG  F.  The resulting gas is of a highly unsaturated nature and when burnt in admixture with the gas from the first cracking operation carbon black of high quality is produced.
Patent GB-797825-A (GB)
Title: Belt conveyor structure
IPC: B65G39/04
Filed: 1956-09-18
Abstract: 797,825. Endless-belt conveyers. McNALLY PITTSBURG MANUFACTURING CORPORATION. Sept. 18, 1956 [Nov. 10, 1955], No. 28483/56. Class 78 (1). The troughing rollers 16, Fig. 2, are mounted rotatably on a flexible member 18, each end of which is held against rotation by the shank portions 21, 22 of a clamp 20 secured to one of the longitudinal members of the framework. Each roller is journalled on the cable by any type of ball, roller or plain bearing assembly 25 and is separated from the adjacent rollers by tubular members 32 In the construction shown in Fig. 3, the rollers 50 are tubular and of such length that only three are required for each unit. The ends of the cable are gripped between the jaws 44, 45, Fig. 4, of a clamp 42 which is secured by a screw 43 to a longitudinal 41 of the framework. The rollers are retained in correct spacing by collars 57 secured to the cable by set screws. In a modification the cable is cored centrally to provide a passage for lubricant to the bearing members. In another modification, each end of the cable 83, Fig. 6, is passed through a support 82 and a washer 84 is fixed to it. A coil spring 85 is confined between the washer and support. In a further modification each end of the cable is attached to a spool which is engaged by the sides of a slot formed in the support.
Patent GB-787143-A (GB)
Title: Controlling the deposition of salts in the tube systems of steam generators
IPC: F22D11/00
Filed: 1955-10-06
Abstract: The deposition of salts in the tube system of a forced flow steam generator which normally operates at or above the critical point of the working medium is caused to occur at predetermined places by subjecting the feed water to a so-called total salts elimination treatment such that its residual salts content after the treatment consists predominantly of one or more compounds of one or more alkali metals having an atomic weight greater than that of sodium.  The treatment may comprise conventional cation exchange followed by anion exchange but in which the anion exchanger (or at least the last anion exchanger) is regenerated with potassium hydroxide.  The anion exchange mass of a mixed-bed ion exchanger (preceded by separate cation and anion exchangers) may be regenerated with potassium hydroxide.  A base exchanger followed by a vaporiser may be regenerated by potassium chloride or sulphate.  In a complete steam power plant steam passes from a forced flow generator to a turbine and thence to a condenser.  The condensate passes through a mixed bed ion-exchange plant to a feedwater tank whence it is pumped back to the generator.  The ion-exchange bed is regenerated with potassium hydroxide.  In a precipitation softening plant followed by a vaporiser the raw water may be softened by precipitation of hardness-forming salts by potassium carbonate, phosphate or hydroxide.
Patent GB-261411-A (GB)
Title: Improvements in or relating to rotatable hopper vehicles
IPC: B65F3/22
Filed: 1926-11-15
Abstract: 261,411. Neuy, H. Nov. 14, 1925, [Convention date]. Scavengers' carts; dumping carts. - Refuse carts comprise, a drumshaped body rotatable about a longitudinal axis and adapted to be loaded through a side opening over the loading edge a. When the body is loaded to the extent shown in Fig. 1, it is rotated to the position shown in Fig. 2, causing the refuse to assume the position shown. The body is then rotated back to its initial position as shown in Fig. 3, the refuse assuming the position shown, which is the natural slope of repose of the refuse. Fresh refuse may then be loaded through the side opening and the operation repeated, so that eventually the amount of refuse loaded is similar to that shown in Fig. 4. Flaps in the upper part of the body enable the latter to be unloaded when the body is rotated to bring the flaps to the bottom or end, or rotary tipping may be employed. Mechanism may be arranged to rotate the body, reverse it at a predetermined point ,and stop it at its initial loading position.
Patent GB-768108-A (GB)
Title: Television pick-up tube
IPC: H01J29/66
Filed: 1954-10-06
Abstract: 768,108. Television pick-up tubes. PYE, Ltd. Oct. 6, 1954 [Oct. 17, 1953], No. 28783/54. Class 39(1). A cathode ray pick up tube of the low velocity type is provided with focussing means which substantially reduce the cross-section of the beam at the target as compared to the crosssection at gun, as opposed to conventional tubes where the cross section of the beam at these two parts are substantially the same unaffected. The beam diameter in the target plane may be reduced relatively to its diameter in the plane of the gun by a ratio of 1 : 2. This provides a smaller scanning spot and therefore better picture definition ; it also provides a more complete discharge of the screen in erasing. In one form, Fig. 2, two focussing coils Fs, Fs are used, Fs having a greater number of turns/unit length than Fs so that the field is stronger near the target. The coil dimensions are such that adjacent the target the field lines extend parallel to the tube axis to ensure normal incidence of the scanning beam over the field scanned. Two pairs of deflecting coils A are provided . In a modification a long coil is subdivided into a number of coils to which currents of different intensities are fed to produce the desired stronger field adjacent to the target. The tube may have a built-in multiplier but preferably the multiplier is omitted. The tube may be an orthicon, image orthicon, cps emitron or vidicon. The storage target may comprise a photo-conductive or photo-emissive layer.
Patent GB-189629-A (GB)
Title: Improvements connected with recording weighing apparatus
IPC: G01G23/18
Filed: 1921-10-31
Abstract: 189,629. Pooley & Son, Ltd., and Dobson, J. Oct. 31, 1921. Printed records, apparatus for giving.-In an automatic or platform machine of the kind employing an indicating quadrant or drum and from which a printed record may be obtained, a clockwork mechanism adjacent the weight type sets type figures corresponding to hours and minutes so that a record of the time may be obtained in alignment with the weight record. Simultaneously, by first setting a type disc by hand, a record may be obtained of the person or gang making the weighment. As shown, the clockwork mechanism 5 sets the time type 6 in alignment with the weight type 3 carried by the indicating quadrant 4 On operating the printing hardly 8 a platen 9 presses a tape and ink-ribbon against the type, the tape and ribbon being fed forward by pawls actuated by the printing handle. A disc 23 adjusted by a knob 21 carries type 24 to identify the person or gang, and an impression of the selected type is obtained on the tape. at the time as the weight and time records.
Patent GB-866701-A (GB)
Title: Improvements in or relating to fluid-flow control valves
Inventor: FREED JACOB BRESSLER
IPC: F16K5/16
Filed: 1959-08-24
Abstract: 866,701. Valves. DURIRON CO. Inc. Aug. 24, 1959, No. 28855/59. Class 135. In a rotary conical plug valve including a polytetrafluorethylene liner between the conical surface of the plug and the bore of the valve body, the liner is made from flat sheet in two separate parts 30, Fig. 5, each having a port 32 which may be drilled either before or after assembly of the parts in the valve body 10, Figs. 1, 3, and slightly curved upper and lower edges to accommodate the taper of the body bore 36. The bore 36 is formed with shoulders 34, 35 and axially extending ribs projecting radially inwards to form pockets into which the parts are pressed. Each part is mounted in its pocket so that one end extends from adjacent one port 12 in the valve body across that port to adjacent the other valve body port 12 with slight circumferential gap between the adjacent ends of the parts. The bore 36 is preferably left in its rough cast state to hold the parts 30 against axial movement when the plug 13 is inserted. An adjusting screw 26 screwed into the cover 22 presses against a pad 28 and a sealing diaphragm 23 to press the plug inwardly into sealing engagement with the liner parts 30. The gland follower 20 is formed with a lug 37 which limits the rotation of the plug to an angle of 90 degrees in a clockwise direction as viewed in Fig. 3, so that the plug never uncovers the gap between the adjacent ends of the parts 30. In a modification, the cover 22 is replaced by a solid bottom to the body 10 with the large end of the plug at the top of the body. The operating stem 15 may then be formed integral with the plug or formed separate therefrom with a tongue and socket connection with the plug. .
Patent GB-1395252-A (GB)
Title: Machine for binding together two or more aerial cables
IPC: H02G7/10
Filed: 1972-06-20
Abstract: 1395252 Installing overhead conductors C CRIPPA 20 June 1972 [21 June 1971] 28855/72 Heading H2C A machine for binding cables 30, 31 to a support wire 4, comprises a frame 1, which straddles and is dragged from the ground along the support wire 4, a friction coupling between the wire 4 and geared wheel 3 causing rotation of the wheel 3 and (through a suitable drive path) of a cylinder 6 to which is tangentially attached a rod 13, carrying reels 14a and 14b, of binding wires 32a and 32b. The cylinder 6 rides over a cylinder 5 through which passes the support wire and the cables 31 and 33. The cylinder 6 is formed in two parts that are pivoted together and that can be opened in order to insert the cable and support wire. The wires 32a and 32b pass through guides 32c and can be tensioned by adjustment of a friction clutch acting on each reel axle. Pulley 26 can be adjusted vertically via screw 25 which is elastically secured to the frame 1, between springs 28 and 24. A gudgeon pin is provided to lock the body 6 to the frame 1. For stronger binding, the number of reels may be increased to four or more.
Patent GB-1013427-A (GB)
Title: An arrangements for recording or reading information
IPC: G06K15/08
Filed: 1962-07-27
Abstract: 1,013,427. Statistical apparatus. OLYMPIA WERKE A.G. July 27, 1962 [Aug. 1, 1962], No. 28934/62. Heading G4M. [Also in Divisions B4 and B6] Information in a store 21 is read from a tape 31 or other medium by means of reading heads 1 to 15 and those heads which are separated from one another by a positive step of 8 or a negative step of 7 in relation to the advancing direction of the tape are automatically operated in alternate succession so that the contents of the store are read from the tape during an advance of 15 spacing divisions. The tape is fed continuously or stepwise by means of a sprocket 30. Each component S 1  to S 15  of the store is connected to contacts K1 to K15 on an inner ring of a rotary selector 22. Contacts O1 to 015 on an outer ring of the selector are connected to the individual reading heads. The inner and outer contacts are sensed by means of brushes secured to an arm 24 driven in synchronism with the sprocket 30. The selector 22 may be replaced by an electronic one. The reading heads may work with movement compensation or may convey the tape through the heads. In a modification, the reading heads are arranged on both sides of the tape in alternate succession.
Patent GB-1020408-A (GB)
Title: A jack strip
IPC: H01R24/58
Filed: 1964-07-15
Abstract: 1,020,408. Jack strips. TELEFONAKTIEBOLAGET L. M. ERICSSON. July 15, 1964 [July 15, 1963], No. 29145/64. Heading H2E. In a jack strip having an insulating support ing structure with a portion 1 which has hole - 2 for jack plugs and a portion 3 which is grooved to receive contact springs 12, the springs have deep notches 6 which correspond to projections in the grooves. Lugs 7 and 8 on the springs pass through holes in the portion 3 and are bent over.
Patent GB-631560-A (GB)
Title: Improvements in safety razors
IPC: B26B21/42
Filed: 1947-11-03
Abstract: 631,560. Safety razors. JOSEPH, R. Nov. 3, 1947, No. 29232. [Class 30] A safety razor handle has a number of openings such as the loops 14, 15, Fig. 12, spaced longitudinally of the blade for the reception of a plurality of the fingers of the user. Instead of the strip with the loops 14, 15, a block having spaced finger holes may be used. The ordinary guard may be replaced by a guard having short and long comb teeth 19, 18, Fig. 13, so that the razor may be used for haircutting.
Patent GB-913342-A (GB)
Title: Improvements in or relating to drying cabinets
IPC: D06F58/10
Filed: 1961-08-14
Abstract: 913,342. Hot closets. HYRESGASTERNAS SPARKASSE - OCH BYGGNADSFORENINGARS RIKSFORBUND U.p.a. Aug. 14, 1961 [March 2, 1961], No. 29248/61. Class 34 (1). A drying cabinet has a vertical passage extending along the height of an openable door, which passage has outlets opening on to the interior of the cabinet for the passage of air heated by a fan and heater assembly mounted in the top of the cabinet. The door 1, Fig. 2, of a drying cabinet has a passage 2 on its inner face with outlet apertures 4, 5 at different levels for hot air entering the passage through an inlet 3 adjacent a delivery opening 16 in an upper space 11 of the cabinet which houses a fan 14 and a heater 17. Fresh air enters the space 11 through an inlet 15 and air from the cabinet is exhausted through an opening 18 thereinto, a portion of which is recirculated through the heater and the remainder passes through an exhaust opening 19 having a flap valve 20. Rods 6 are pivotally mounted within the cabinet so as to be vertically foldable and are maintained in the upright, inoperative position as by magnetic fittings 9. A timer 24 and an indicator lamp 26 may be mounted on the cabinet.
Patent GB-1001246-A (GB)
Title: Improvements in or relating to a circuit arrangement for automatic switching systems
IPC: H04Q3/52
Filed: 1963-07-24
Abstract: 1,001,246. Automatic exchange systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 24, 1963 [July 27, 1962], No. 29320/63. Divisions H4K. In an arrangement for selecting a free route through a plurality of single wire switching stages, each of the speech wires interconnecting two successive stages has associated therewith a control conductor which includes a negative resistance element, which element is cut-off in the busy state of its associated speech wire, the arrangement being that upon application of a potential difference between marked ends of the control network one of the possible free paths of series connected negative resistance elements therebetween breaks down and locks out the remaining paths whereafter the switches in the speech path corresponding to said one path are operated. The negative resistance elements may be tunnel diodes having associated therewith transistor switches or as described they may be controlled PNPN devices. The speech switches are als controlled PNPN devices (hereinafter termed transistors). As shown the subscriber's line circuits LS are divided into groups each of which is allotted an A switch in the primary frames LF1 or LF2 and similarly groups of repeaters or registers OV are allotted D switches in the secondary frames TF1 and TF2. The trunking between the primary and secondary frames via the switching stages B and C is such that any subscriber can be connected to any repeater (or register) and a suitable notation for completely identifying a subscriber, a repeater and the route used for a connection therebetween is discussed in the Specification. In order to set up a call between LS121 and OV112, say, a marker (not shown) closes control switches SP12 and SS11 of either end of the control network and applies a pulse to winding P of all the magnetic cores W1 in stages B and C. Provided then, that the speech wire which links any particular core is free, viz. it is not carrying current, the core is unsaturated and hence can pass this pulse to the base of its associated transistor, e.g. TRA112, whereby those transistors connected in series between SP12 and SS11 break down. In this case there are two possible paths, viz. control conductor GA12, negative resistance element TRA122, GB12, TRB112, GC12, TRC112, GD11 or GA12, TRA121, GB11, TRB111, GC11, TRC111, GD11, one of which, say the second, will break down and lock out the other (assuming both are free). An earth marking is thus provided on leads HA2, HB1 and HC1 in response to which the marker applies a suitable bias to the associated conductors MA2, MB1 and MC1 and to conductor ML1 and closes switch OS in OV112 whereby the speech switches TD1121, TC1111, TB1212 and TA1211 successively become conductive in that order. These transistors remain conductive after the marking on the M conductors is removed and due to the current flowing therethrough the associated magnetic cores are saturated.
Patent GB-409007-A (GB)
Title: Improvements relating to ignition magnetos for internal combustion engines
IPC: H02K21/38
Filed: 1932-10-21
Abstract: 409,007. Inductor magnetos. LUCAS, Ltd., J., WATSON, E. A., and MARLOW, F. J., Great King Street, Birmingham. Oct. 21, 1932, No. 29459. [Class 35.] In an inductor ignition magneto, an annular permanent magnet a, b is disposed in the body part at each end of the rotor c and pole-pieces d, e extend laterally from each magnet towards the pole-pieces of the other ; the magnet a is made sufficiently large to allow the rotor to be withdrawn, or both magnets may be so formed. The pole-pieces d, e are cast or otherwise secured within the body of the magneto and are so shaped that the magnets which are accurately shaped to a cylindrical form in their outer periphery, can be slipped into position. The pole-pieces are separated by air gaps f, g.