baber/WOPTO huggingface dataset:
Patent GB-461057-A (GB)
Title: Improvements in seals for the knotted ends of strings and the like
IPC: G09F3/03
Filed: 1936-05-23
Abstract: 461,057. Seals. DYGULA, F. May 23, 1936, No. 14653. [Class 146 (ii)] A seal for knots of strings and the like comprises, in one form, a coned male member b with a central stem l having a circular groove near its free end to accommodate a split spring ring g, and a female member a with a correspondingly coned recess c, and with a thick bottom wall k having a cavity m therein which communicates with the main cavity of the female member by means of a downwardly tapered aperture n. The male member b has a cavity i open at the bottom, and two holes h enable the ends of a piece of string to be passed through the member and secured together inside the cavity i. When the member b is inserted in the member a, the spring ring g is compressed by passing through the tapered aperture n, and then expands to prevent the withdrawal of the member b. In a modification, the female member has a coned recess to receive the coned male member, and both members are grooved. A split spring ring is situated in the groove of the female member, and is expanded by the male member when inserted therein until the groove in the male member faces the groove in the female member, whereupon the ring contacts and engages both grooves to prevent the withdrawal of the male member. U.S.A. Specification 1,977,301 is referred to.
Patent GB-1140691-A (GB)
Title: Transparency carrier and photographic enlarger including it
Inventor: DENNER JAMES RAILTON
IPC: G03B27/64
Filed: 1965-01-04
Abstract: 1,140,691. Transparency carriers. W.H. HOWSON Ltd. April 1, 1966 [Jan. 4, 1965], No. 14682/66. Divided out of 1,140,881. Heading G2A. A transparency is held between a rigid transparent support 14 and a flexible masking cover by reduced air pressure, the cover overlying only marginal portions of the transparency. The cover includes a spacer sheet 43 having a central window 44 defining a transparency reception area, and a second sheet 41 overlying the edges of the window 44. This arrangement forms a transparency carrier (12) Fig. 1 (not shown) for a photographic enlarger provided with a heat filter (5) and a diffusing sheet (8) in front of a light source (2) adjustable for focusing purposes, the diffusing sheet minimizing or removing the effect of scratches &c. on the surface of a transparency.
Patent GB-753174-A (GB)
Title: Photographic sensitizing dyes and photographic emulsions containing the same
IPC: C09B23/10
Filed: 1954-05-19
Abstract: Dyes having the general formula:-<FORM:0753174/IV(c)/1> wherein X is O or S, Y completes a fivemembered heterocyclic ring, R is an alkyl or aralkyl group, R1 is an alkyl, aryl, carboxyalkyl, carboxyaryl, sulphoaryl or aralkyl group and R11 is H or an aryl, aryloxy or alkoxy group are prepared by condensing a 2-methylthiazoline quaternary salt with a 5-membered heterocyclic nitrogen compound having a reactive intercyclic methylene group and with phthalic anhydride or a 4-aryl, 4-alkoxy or 4-aryloxy derivative thereof.  The condensation may be carried out in the presence of a basic condensing agent such as pyridine, piperidine, triethylamine, tripropylamine, methyl diethylamine, dimethylaniline, and sodium acetate.  The nucleus completed by Y may be a derivative of rhodanine such as the N-methyl, N-ethyl, N-phenyl, N-benzyl or N-carboxyphenyl rhodanines, hydantoins or thiohydantoins such as their N-methyl derivatives, pyrazolones such as the 1-phenyl-3-methyl and 1:3-diphenyl-5-pyrazolones, thiopyrazolones and 2 - thio - 4 - keto-tetrahydro-oxazoles such as the N-methyl and N-ethyl derivatives.  Specification 606,141 is referred to.
Patent GB-623952-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C31/00
Filed: 1947-06-02
Abstract: 623,952. Mining-machines. ANDERSON, A., and ANDERSON, BOYES, & CO., Ltd. June 4, 1947, No. 14761. [Class 68 (i)] A mining machine of the chain-cutter type has a horizontal cutter jib 10 carried by a gear-head casing 11 slidable on an inclined part 13 of the machine body to vary the height of the cut ; the movement may be effected by a hydraulic ram 15, screw gear or other means, and the incline may be upwardly and rearwardly as shown, or upwardly and forwardly. A further chain jib 16 may be provided.
Patent GB-734635-A (GB)
Title: Improvements in filters
IPC: B01D45/08
Filed: 1953-05-27
Abstract: 734,635. Filtering liquids. MULLER, J. May 27, 1953 [Nov. 27, 1952], No. 14806/53. Class 46. [Also in Groups XXVII and XXVIII] A filter suitable for liquids comprises a block of superposed coaxial imperforate annular discs 4 between which are located concentrically arranged helical metal wire coils 5 the closeness of the turns of which increase in the direction of filtering, and the blocks being housed in a cap 9 seated on and releasably secured to a circular plate 3 fixed to a central apertured tube 1. The cap 9 is spaced from the filter block to form a dirt-laden liquid inlet 11 and distribution chamber 12 from which liquid passes over disc flanges 8 between the turns of the coils 5 to an outlet provided by the tube 1. The discs 4 are threaded loosely on rods 6 of length greater than the height of the assembled flanged discs to allow access of washing liquids.
Patent GB-354411-A (GB)
Title: Improvements in electric switches for wireless receiving apparatus
IPC: H01H19/56
Filed: 1930-05-14
Abstract: 354,411. Mechanical switches without quick action. BENJAMIN ELECTRIC, Ltd. and HARING, H. S., Brantwood Works, Tariff Road, Tottenham, London. May 14, 1930, No. 14818. [Class 38 (v).] Contacts.-A switch comprises two parallel insulating plates having plate contacts secured between and substantially perpendicular to them and a rotatable housing carrying a spring-pressed contact member adapted to bridge adjacent pairs of plate contacts. A two-way switch is shown in Figs. 4 and 5, L-shaped contact plates 5 are secured by means of eyelets 8 to an insulating plate 7, and the ends 12 of the plates 5 enter apertures in an insulating plate 6. The plates 6, 7 are connected by bolts 9 having spacers 10. Contact is made by means of a spring-pressed metal ball 1 which enters the spaces between adjacent pairs of contact plates to bridge them. The ball 1 is carried in a holder 13 of insulating material moulded on to the milled end 14a of an operating-spindle 14 which passes through a onehole fixing-bush 16. An operating-knob (not shown) on the spindle 14 has a pointer which co-operates with a dial 25 to show the position of the switch, the positions being definitely located by the entry of the ball 1 between the pairs of contact plates. For a double-pole switch, oppositely mounted pairs of contact plates are employed together with a double contact-holder with two spring-pressed balls.
Patent GB-1027384-A (GB)
Title: Improvements in and relating to dry-shaving apparatus
IPC: B26B19/26
Filed: 1963-04-16
Abstract: 1,027,384. Dry shavers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 16, 1963 [April 17, 1962], No. 14846/63. Heading B4B. A dry shaver has hair clippers 15 which are driven from an eccentric 9 fixed on a drive spindle 5 of the shaving head 7, the eccentric being embraced by the arms 11 of a fork 10 which is connected by a spindle 12 to a finger 13 for driving the movable blade 14 of the clippers. The spindle 12 is held in a recess in the edge of a plate 8 by means of a spring clip 18 provided with apertures engaging over projections 21 formed on the edge of the plate 8. In a modification, Fig. 4 (not shown), the spindle is journalled in a bore in an inwardly protruding portion of the shaver wall. In a further modification, the spindle is fixed in a hub and projects below the frame plate into a recess in an inwardly protruding portion of the shaver housing.
Patent GB-333162-A (GB)
Title: Improvements in or relating to multiple ply textile fabrics
IPC: D03D11/00
Filed: 1929-05-14
Abstract: 333,162. Fenner & Co., Ltd., J. H., and Hainsworth, S. B. May 14, 1929. Multiple fabrics for belting, conveyer bands, and friction linings of brakes &c. Weft threads 27, 28, Fig. 2, and 20, Fig. 4, additional to the ordinary weft threads, bind an inner ply or plies to one or both of the outer plies. These binding- wefts may interlock adjacent pairs of plies, or may bind the outer plies to a centre or dummy ply 14, Fig. 2, which has no ordinary weft threads. These binding-wefts may also bind intermediate plies. The centre ply and also the intermediate plies may have more warp ends than the outer plies. The ordinary weft threads are not shown in Fig. 4.
Patent GB-166515-A (GB)
Title: Improvements in the art of firing boilers by means of fuel oil
IPC: F23D11/10
Filed: 1921-05-30
Abstract: 166,515. Dunham, W. P. July 16, 1920, [Convention date]. Liquid-fuel furnaces.-Relates to firing boilers by oil by the method in which the same source of pressure-air is used both for forcing the oil from the supply tank and for atomizing the oil in the burner and the Specification as accepted is confined to an improved construction of burner. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following. Oil from a tank 8 is supplied by a gas-engine 5 and pump 4 to the tank 2, from which it passes by a pipe 11 having a perforated cap 20 to the burner 12. The oil in the tank 2 is maintained at a uniform level by a float-valve 21 which operates a gate-valve 23 in the by-pass 24. Compressed air is supplied by a fan 3 to heating-coils 17 in proximity to the boiler 6, and thence part is led by a pipe 26 to the burner and part by a pipe 18 to the oil tank 2, where the pressure set up aerates the oil and forces it by the pipe 11 to the burner. A meter 30 may be provided in the oilpipe 11 and suitable regulating cocks and valves in the oil and air pipes. This subject-matter does not appear in the Specification as accepted.
Patent GB-894848-A (GB)
Title: Improvements relating to thermo-nuclear reactors
IPC: H05H1/04
Filed: 1958-05-09
Abstract: 894,848. Nuclear fusion reactors. THOMSON G., and ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 8, 1959 [May 9, 1958], No. 15034/58. Class 39(4) A thermonuclear reactor of the kind in which a high current discharge is produced around a torus and is confined by the self-induced magnetic field, includes means for collecting particles from positions distributed along the torus together with ion injectors suitably positioned along the torus, the arrangement being such that the reaction products cause a potential difference to be established between the points of collection and the ion injectors whereby power can be supplied to an external load. Fig. 1. shows part of the torus T containing a pinch discharge P wherein shaped collectors C project through the walls and are connected to a bus-bar B1 Ion injectors I are connected to a second bus-bar B2, and an electrical output may be taken from the reactor by connecting a load between the two bus-bars. The collectors may be omitted and the wall of the torus used to collect ions.
Patent GB-401382-A (GB)
Title: Improvements in and relating to electric discharge tubes
IPC: G11B7/00
Filed: 1932-05-27
Abstract: 401,382. Discharge lamps. FIDELITY FILMS, Ltd. and RYAN, C. P., 122, Wardour Street, London. May 27, 1932, No. 15080. [Class 39 (i).] In a discharge lamp for sound recording of the type in which the varying discharge is adapted to be viewed in a direction at right angles to the direction of variation of the discharge, the cathode 10, Fig. 1, surrounds the anode 11 and is provided with a narrow slit 12 adapted to be illuminated by the discharge. In a modification, a platinum or copper cathode 10, Fig. 3, forms the container and is spun seamlessly at one end or is sealed by a cap 17. The other end is closed by a glass seal 18. The cathode may be formed by folding around a mandrel and the edges of the slit are undercut to facilitate the filling thereof with glass. The tube may be water cooled at the end remote from the anode. In a further modification, a tube for double-track recording has the anode 11, Fig. 4, arranged in a seal 18 opposite the slit 12.
Patent GB-254087-A (GB)
Title: Improvements relating to automatic and semi-automatic telephone systems
IPC: H04Q1/32
Filed: 1925-06-10
Abstract: 254,087. Siemens Bros., &. Co., Ltd., and Patterson, W. G. June 10, 1925. Automatic and semi-automatic exchange. - systems.-Upon the receipt of the first impulse of a train the impulse relay at an impulse receiv. ing position is bridged across the speaking conductors to respond to loop impulses, but on the cessation of the train it is re-connected between one conductor and earth, leaving the other conductor available for the transmission of supervisory signals. In a modification which is referred to, the relay bridged across the line wires during trains of impulses is only used to take the impulses, and a separate relay is used for preparation and holding purposes. In the system described, a feed bridge first selector with battery connected over a retard coil to the outgoing bwire and earth connected over a supervisory relay to the outgoing a-wire, impulses over the b-wire in the usual manner when the connection is ex. tended over local switches, but impulses over a forward loop in the following manner on taking into use a junction to another exchange. When the junction a, b is seized, the impulse relay A is energized over the b-wire, and completes a circuit for the release relay V, which locks over contact v4, connects up dialling tone DS, and lights a lamp UL to indicate that no impulses have yet been received. On the receipt of the first impulse, the relapse of relay A energizes diallying relay D and the vertical magnet VM. Relay D disconnects ground from the winding 1 of relay A and bridges both windings of this relay across the a- and b-wires so that for the remaining impulses loop impulsing is employed. When relay A pulls up after the first impulse, a relay L energizes over off-normal contacts k3, locks over contacts l1, y1 and extinguishes lamp PL. At the end of the impulse train, relay D relapses, disconnects the winding 2 of relay A from the awire and again earths the b-wire over winding 1, and closes a circuit for the rotary magnet RM. Further impulse series are sent over the junction in a similar manner and repeated at contacts a3, the leg condition being reverted to after each series. When the called party answers, a supervisory relay Y responds, unlocks relay L, and earths the a-wire, causing a similar relay at the outgoing end of the junction to energize and initiate metering. If a busy condition is encountered, busy tone and flashing battery are connected in known manner to the outgoing a-wire, causing the intermittent response of relay Y, which repeats the signal over the junction a-wire. Delayed metering arrangements as described in Specification 200,928 are provided at the outgoing end of the junction to prevent the response of the supervisory relay thereat from causing the meter to be operated under these circumstances. When the calling party hangs up, release occurs in the usual manner, but if the called party clears, first relay Y relapses and lights the supervisory lamp PL.
Patent GB-953228-A (GB)
Title: Ice detector system
IPC: B64D15/20
Filed: 1961-04-26
Abstract: 953,228. Detecting icing conditions. UNITED CONTROL CORPORATION. April 26,1961 [April 26, 1960], No. 15135/61. Headings G1A and G1X. [Also in Division H3] In a device to detect the existence of atmospheric conditions in which ice may form, a probe 10 comprises a surface 14 on which ice can form and a source 24 of radiation which passes over the surface to a detector 30. As described the probe 10 is suitable for mounting on an aircraft and is of generally streamlined tapered cross-section with a longitudinal portion constructed to form a relatively sharp leading edge 14 as the icing surface. Within the probe at opposite ends are disposed a container 30 of Sr90 emitting # radiation along a passageway 22 through a thin metallic window 18, over the surface 14, through a second window 17 and passageway 28 to a Geiger-Muller tube 30. The probe also contains an electric heating element 20 extending along its length, and a thermistor 34 to detect by conduction the temperature of the probe. Ice formed on the surface 14 absorbs some of the # radiation and an alarm is raised when the radiation incident upon the detector falls to a critical value. This is sensed by a bridge circuit of which one arm is formed by a resistor 93, another by a resistor 95 in series with a further resistor 97, the third by resistors 75, 76, and 79 in series, and the fourth by a resistor 77 in series with a parallel combination of a four layer diode 78 and diode 80 with a resistor 81 and capacitor 82. Voltage pulses due to current in the Geiger-Muller tube 30 consequent upon incident # radiation are fed by a capacitor 67 to the junction of the four layer diode 78 and diode 80. At a critically low rate of arrival of these pulses unbalance of the bridge circuit causes the bi-stable amplifier formed by transistors 83 and 90 to operate a relay 87, which energizes the heater 20 and an alarm lamp 103. As the ice melts the initial conditions are restored by the increasing rate of pulse feed from the Geiger-Muller tube. An overheat protection relay 107 operates upon sufficient current being passed through the thermistor 34, in which event the potential at the base of transistor 90 is reduced by connecting the base to earth through resistor 114, diode 115 and contacts 110 of the relay 107 thereby cutting of transistors 90 and 83 and hence de-energising the relay 87 and the heater 20. The surface upon which the ice is detected may take other forms, e.g. that of a wire, and the probe may control the de-icing equipment of an aircraft, Fig. 7 (not shown). The system may be tested by opening a test switch 56 to cut off the power supply to the Geiger- Muller tube 30 and so simulate icing conditions.
Patent GB-1208561-A (GB)
Title: Improvements in and relating to liquid dispensing apparatus
Inventor: BOWMAN JOHN HENRY
IPC: B67D7/74
Filed: 1966-04-05
Abstract: 1,208,561. Liquid dispensing apparatus. AVERY-HARDOLL Ltd. and BECK & CO. (METERS) Ltd. 5 July, 1967 [5 April, 1966], No. 15163/66 Heading A4T. Dispensing apparatus for selectively mixing two liquid fuels has the drives 20 from meters 12, 14 in the flow lines 8, 10 of each liquid connected together through gears 22 to an infinitely variable gearing 24. The variable gearing is altered when at rest at 28, or if it can only be altered while running, a subsidiary control 30 enables alteration while at rest. Mechanical connection 32 lead from gears 22 to adding differential 34 which drives indicator 38 showing the total quantity dispensed. The price for any mixture is also shown at 46, and connection 42 from control 28 operates indicator 44 showing the octane value of the fuel dispensed. Pressures across the two meters are balanced by a diaphragm regulator 26 actuating a valve downsteam of each meter. Separate price computing units may be driven from each meter. If petrol is to be pumped at 2 from only one of tanks 4, 6 one of the regulating valves may be closed by control 30 acting through a hydraulic or mechanical connection 48. The flows of petrol may be controlled by valves connected to the gearing via a subtracting differential having one input from one meter through a variator and the other input from an adding differential connected to both meters.
Patent GB-505321-A (GB)
Title: Improvements in or relating to the production of metal phosphates
IPC: C01B25/39
Filed: 1938-05-21
Abstract: 505,321. Rotary furnaces. KERSCHBAUM, F. P. May 21, 1938, No. 15172. Convention date, May 21, 1937. [Class 51 (ii)] [Also in Groups III and I] A furnace for the. production of metal phosphates from phosphorus-oxygen compounds and a molten metal salt may comprise a centrifugal drum lined with a layer of solid phosphate or with carbon bricks, or, as shown in Fig. 3, a rotary furnace may be used having a heat-insulating layer n between the shell l and carbon lining m. Solid metal salt is introduced from o by the aid of an air jet p, steam at q, phosphorus and primary air at r, r<1>, and secondary air at s. The heat of combustion of the phosphorus produces a molten reaction mixture which, by rapid rotation of the furnace, is applied against its inner walls as a uniform layer c. When preformed phosphorus compounds are used, such as phosphoric acid or a metaphosphate, the furnace may be electrically heated or be heated by an oil burner. Minimum speeds of rotation of the furnace vary from 78 r.p.m. for an internal diameter of the salt melt of 30 cms. to 42 r.p.m. for an internal diameter of 100 cms. In practice these speeds are considerably exceeded. Specification 495,487 is referred to.
Patent GB-120880-A (GB)
Title: Improvements in Concrete Structures.
Inventor: MARTINET HENRY EUGENE
IPC: E04B2/84
Filed: 1918-09-18
Abstract: 120,880. Martinet, H. E. Nov. 17, 1917, [Convention date]. Walls; reinforced-concrete walls. - In a wall comprising piers and intermediate slabs of concrete cast in situ, the piers consist of concrete blocks having a central cavity f and side grooves g. Concrete is poured into the cavities f to form a core, with or without reinforcements, and the grooves g receive the walling which is cast of the same thickness as the piers. Grooves l are formed in the upper and lower faces to receive temporary " chains " or tie-bars, which are detachably secured to looped members built into the piers. The piers alone may support the roof before the walls are completed. The pier blocks may be made in one piece, or they may be divided along the dotted lines. By using non-symmetrical blocks as shown in Fig. 8, offsetts are produced in alternate courses.
Patent GB-1169997-A (GB)
Title: Automatic reclosing circuit breaker
Inventor: FIELD EVERETT J
IPC: H01H33/666
Filed: 1967-04-04
Abstract: 1,169,997. Automatic circuit breakers. I-T-E CIRCUIT BREAKER CO. 4 April, 1967 [25 July, 1966], No. 15271/67. Heading H1N. An automatic reclosing circuit breaker employs vacuum switches 55 to break the circuit. The switches 55 are suspended by bushings 29, 29<SP>1</SP> from a plate 24 carried by frames 22, 23 on a horizontal metal partition 21 carried at the top of a vertical column 17. The switches are enclosed by a hood 24b of polyetser resin bonded glass fibre which seats in a groove in a sealing ring 20 surrounding partition 21. Operating mechanism 200 located below the partition 21 is enclosed by a second insulating hood 24f. The mechanism 200 includes a closing spring (not shown) extended by a motor and latched. To close the switches the latch is released and the spring acts upon a cam (164) (Fig. 4, not shown) to pivot a lever 102 anticlockwise to close the switches and extend opening springs (120-122 and 107, Figs. 3-4, not shown). The mechanism is latched closed; the closing springs are automatically recharged by the motor as soon as they have been released. During closing a blade spring (158) is deformed applying a force to the armature of a permanent magnet holding device (182) (Figs. 4-46, not shown). On overload current transformers 185 energize a coil so as to release the armature under the bias of the spring (158). This releases the closing latch allowing springs (107, 120-122) to open the switches. The recharged closing spring is made to reclose the switches after a delay by an electronic control unit 190 (not described) providing for a limited number of reclosures. Each operation of the switches moves a counter 155. The mechanism 200 is provided with a damper (133, Fig. 4, not shown). The movable contacts of the switches are connected to terminals 31a, 31a<SP>1</SP> through links 75 and a frame 67 the arrangement being such that electrodynamic forces increase the contact pressure. The terminals may be fitted with threaded or cable grip connectors (Figs. 6b, 6c respectively not shown).