baber/WOPTO huggingface dataset:
Patent GB-1138149-A (GB)
Title: Alarm control
IPC: G04C21/16
Filed: 1967-02-23
Abstract: 1,138,149. Alarm clocks. SUNBEAM CORP. Feb. 23, 1967 [July 5, 1966], No. 8765/67. Heading G3T. An on-off control for an alarm mechanism in a clock or other timing device comprises a thin flexible strip of metal 73, the successive depressions of which actuate a control plate 53 to set the alarm mechanism in either an on or an off position. The clock comprises a motor and timing movement 22 mounted in a case 10 having a spaced front bezel 13 behind which are positioned the clock hands 14-16 and an alarm setting hand 17. The hands 15, 16 are set by pulling out aknob 18 whilst the hand 17 may be set with the knob in its inner position. At the alarm time, lugs 41 on an alarm gear 40 enter arcuate recesses (not shown) in an hour gear 42 so that the hour gear is urged towards the alarm gear by a spring biased alarm trip (43), Fig. 5 (not shown). The resulting pivotal movement of the alarm trip allows its ear 50 to release a tab 52 of a hammer 24 and a tab 28 of the hammer thereby engages the teeth of a wheel 29. The rotating wheel 29 causes the hammer head 26 to repeatedly strike a bell 23. The alarm may be stopped from ringing by depressing the strip 73 or the relative movement of the gears 40, 42 will gradually disengage their respective lugs and recesses to automatically stop the alarm. The depression of the strip 73 moves the 'L' shaped control plate 53 downwards against the tension of a spring 55. The upright portion 56 of the plate has a hole 65 formed with two inwardly projecting lugs 66, 67, and a wheel 54 having teeth defined by alternate slots and notches 64 and 63 respectively is mounted in the hole on a shaft 19. The downward movement of the plate 53 causes the lug 66 to rotate the wheel 54 so that on releasing finger tip pressure on the strip 73, the plate returns upwardly, one of the shallow notches 63 having been aligned with the key 67. A tab 68 on the plate engages a tab 69 on the hammer to prevent the hammer ringing. If now the strip 73 is again depressed, the lug 66 rotates the wheel 54 to align one of the deep slots 64 with the lug 67 and on releasing pressure on the strip 73, the plate 53 moves upwardly so that its tab 68 no longer engages the tab 69. The alarm is now set to sound when the hammer is released by the ear 50. An indication having a red portion 76 which is either masked or revealed by the clock housing moves up and down with the part 57 of the plate 53 to visibly show whether the alarm is set in an off or on position. In a modification, a vibrating reed, which may be restrained by a projection of the plate 53, is used in place of the bell and hammer, the reed vibrating against a plate 30 of the mechanism under the magnetic attraction of the field of the clock motor coil.
Patent GB-805686-A (GB)
Title: Improvements in or relating to loose-leaf binders
IPC: B42F13/40
Filed: 1957-03-18
Abstract: 805,686. Loose leaf binders. BACKEMARK, E. A. March 18, 1957 [March 20, 1956], No. 8802/57. Class 146(1) The prongs 9 of a loose leaf binder pass through rigid projections 11 on the covers 1 and are mounted on hingedly connec ted members 8 which operate against the spring action of the limbs 7 of a channel- -section bar 6 to oper the prongs 9 for in sertion or removal of sheets, the bar 6 having flexible strips 5 clamped between its base and a mem ber 10, and leaf springs 12 attached to the member 10 and bearing against the back 2 of the binder, the arrangement being such that, when the binder is closed (Fig. 2) the leaf carrying mechanism is substantially located within the back 2 but on opening of the binder (Fig. 3) the mechanism is moved at least partly out of the back 2. The projections 11 conceal the mechanism while the binder is open and, on closing, assist in returning the mechanism to the back 2.
Patent GB-1438232-A (GB)
Title: Semiconductor protective elements
IPC: H01L21/331
Filed: 1974-02-27
Abstract: 1438232 Protective element for integrated circuits HITACHI Ltd 27 Feb 1974 [28 Feb 1973] 8908/74 Heading H1K An element connected across the input terminals of an integrated circuit to protect it against breakdown due to static electricity comprises a pair of nested zones 2, 3 formed in one surface of a semiconductor substrate 1 to provide a transistor structure, with an electrode 6 short circuiting the PN junction between zones 2 and 3. In the Fig. 1 embodiment the N zone 3 is elongate and has a further electrode 5 at the end opposite electrode 6. In operation, with the substrate earthed, the input current to the IC flows through zone 3 as shown but high voltage pulses of either polarity cause transistor action to occur with zone 3 or substrate 1 emitter according to whether the pulses are negative or positive. In a simpler arrangement electrode 5 is omitted and electrode 6 connected in parallel with the input line. With negative pulses transistor action occurs as above while with positive pulses zone 2 and the substrate form a forward biased diode.
Patent GB-238487-A (GB)
Title: Improvements in lock nuts
IPC: F16B39/12
Filed: 1925-04-04
Abstract: 238,487. Dollman, H. April 4, 1925. Locking nuts.-A lock-nut is provided with a concentric projection 4 at one end and a concentric recess 3 at the other and is locked by engagement with an exactly similar nut as shown in Fig. 2. The recess 3 or projection 4 may be tapered in form or both may be tapered. The nuts are interchangeable, and the locking action is due to the frictional grip between the inter-engaging projection and recess.
Patent GB-492758-A (GB)
Title: Improvements in and relating to mining machine cutter chains
IPC: E21C35/193
Filed: 1937-03-30
Abstract: 492,758. Mining-machine cutter-chains. PHILP, J. I. March 30, 1937, No. 9015. [Class 68 (i)] [Also in Group XXV] A cutter - chain for a mining-machine comprises substantially solid pickholding boxes 9 pivoted on hardened steel bearing- bushes 12 locked to side straps 2, 3, surmounted by pick-holding blocks 1 ; the locking is effected by projections or recesses 14 engaging recesses or projections 15, and the side straps 2, 3 are integral with the blocks 1, or one or both straps is secured to the block by welding, screwing, &c. Joint pins 7 pass through the bushings. Guide ribs 5, 13 may be provided on the links and the straps 2, 3 have openings 8 for the passage of cuttings. Some or all the pick boxes or blocks may carry two picks, or a succession of links carrying one or more picks may be followed by a link comprising side straps surmounted by a block not adapted for carrying a pick.
Patent GB-720869-A (GB)
Title: Improvements in or relating to electric discharge tubes of the kind comprising a mercury cathode and a gas filling
IPC: H01J17/00
Filed: 1953-04-01
Abstract: 720,869. Metal-vapour discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES; Ltd. April 1, 1953 [April 4, 1952], No. 9059/53. Class 39 (1) An electron discharge tube with a mercury cathode 2 and a hydrogen filling has a film of liquid 4 of low molecular weight over the cathode. The film, which may be water, should preferably be less than 0.02 mm. thick. The tube, which is suitable for use in pulse generating systems, is usually filled to greater than atmospheric pressure, for example 1.5 atmospheres.
Patent GB-1123165-A (GB)
Title: Improvements in and relating to piston-and-ring assemblies
Inventor: CROSS ROLAND CLAUDE
IPC: F16J9/10
Filed: 1966-03-02
Abstract: 1,123,165. Pistons. CROSS MANUFACTURING CO. (1938) Ltd. 1 Feb., 1967 [2 March, 1966], No. 9124/66. Heading F2T. A piston and ring assembly comprises a piston having a radially outer part 4 of its crown 1 mounted for limited axial movement relative to the main body of the piston, a piston groove of which one side 13 is an under face of the crown part 4 and the opposite side 14 is formed on the piston, one or more split rings 15, 16 in the groove, the ring or at least one of the rings being adapted to engage the cylinder wall 3, and at least two surfaces inclined to the axis of the piston and adapted to slide one on the other whereby movement of the sides of the groove towards one another due to axial movement of the crown part 4 causes the ring or at least one of the rings to be expanded outwardly in the groove, the ring or rings comprising at least one turn of a helix. The crown part 4 is sealed to the piston by a ring 7 and resiliently secured to the piston by bolts 17, a gap being provided between facing surfaces 9 and 24 on the part 4 and the piston respectively and the sides 13 and 14 being urged together by springs 21 located between a step 20 on the piston and nuts 22 on the bolts. The sides 13 and 14 are inclined to the piston axis and the groove contains three outer rings 15 and two inner rings 16 all of truncated isosceles triangular section and constituting together one turn of a five start helix. In use, the rings 15 are urged outwardly into contact with cylinder wall and the rings 16 are urged inwardly against the base 12 of the piston groove by the springs 21 and/or the force due to the cylinder pressure acting on the crown part 4. A bearing ring 25 may be fitted in the piston skirt 2. In a modification, Fig. 2, a single ring 215 is fitted between the groove sides 213 and 214 which may be similarly and oppositely inclined or, as shown dotted, one side 214a may be normal to the piston axis. In other modifications, Figs. 3-5 (not shown), one inner and one outer ring are housed in the groove.
Patent GB-199501-A (GB)
Title: Improvements in weighing machines
IPC: G01G1/18
Filed: 1922-03-30
Abstract: 199,501. Hollis, T., (trading as Mutlow & Co., T.). March 30, 1922. Grant of Patent refused. Balances, links and stays for. - In a counter scale the depending leg 6 of the pan support is provided with a circular projection 1 having an undercut head beneath which the knifeedged plate 3 secured to the leg, fits. The projection may consist of a conical headed rivet.
Patent GB-1028713-A (GB)
Title: Improvements relating to an apparatus for severing threads in looms
IPC: D03D49/70
Filed: 1963-03-07
Abstract: 1,028,713. Looms. VEREINIGTE GLANZSTOFF-FABRIKEN A.G. March 7, 1963 [March 17, 1962], No. 9134/62. Heading D1E. Apparatus for severing threads on a loom, particularly threads entirely or largely of synthetic resinous material, comprises a heating wire 9 energizable by a low voltage current and mounted upon a heat resistant and electrically insulating member 6. The member 6 is carried by a spring blade 5, which may be mounted upon the temple 2 on the loom frame 1 by way of insulating member 3, so that the wire 9 is pressed towards the selvedge of the fabric. In a modification twin leaf springs supporting the block 6 serve also as conductors of the heating current. Helical springs may be used instead of the leaf springs.
Patent GB-376326-A (GB)
Title: Improvements in or relating to aerially propelled tractors
IPC: B61C11/06
Filed: 1931-03-25
Abstract: 376,326. Railway vehicle axle trucks and buffers; indiarubber springs. CORNET, M. G., 4, Calle de Atocha, Cuadruplicado, Madrid. March 25, 1931, No. 9146. Convention date, March 26, 1930. [Classes 103 (v), 103 (vi), and 108 (iii).] A rail tractor vehicle 1, normally propelled by aerial propellers 3 driven by internal combustion engines 2 on resilient mountings 4, is provided with supplementary driving means comprising broad wheels 8, with flat tyres of metal, fibre or rubber, adapted to be raised or lowered into engagement with the running rails 8a as required, being driven through chain gearing 13 from a transverse shaft 15 connected by reversible bevel gearing 16 in a casing 17 to one of the engine shafts 2. The axle 7, carrying the driving wheels 8, is secured to the ends of pistons 9 having a limited stroke in pneumatic cylinders 10, operation thereof for raising and lowering being under the driver's control. The normal supporting or running wheels 5 and guiding wheels 6 are formed to minimize friction, being mounted on ball bearings, Fig. 7, and provided with renewable rims formed with flat treads and rounded flanges, the rails being rounded as shown and carried by a rigid tubular girder structure resting on metal frames or suspended in any suitable manner. The vehicle is resiliently mounted on the running wheels 5 by means of elongated boxes 22 arranged along the sides of the vehicle and containing layers of compressible material 24, interposed between plate springs 23, the uprights 28a carrying the wheels 5 being formed with flanges 27 interposed between the layers and being surrounded by an elastic wrapping 28, the upper ends emerging into a box shaped cover 26 with a compressible end-pad 25. The vehicle body is formed of metal hoops and side sills covered with plates of light metal such as' " Duralumin " (R.T.M.). The propellers 3 are enclosed by end cages'or frames 30 providing means for the central attachment of coupling devices, comprising ball-jointed links, and resiliently mounted buffers, Fig. 13 (not shown). Specification 366,208, [Group XXX], is referred to.
Patent GB-1224732-A (GB)
Title: Improvements relating to closures for containers
Inventor: ROBINSON JAMES
IPC: B65D39/00
Filed: 1967-02-27
Abstract: 1,224,732. Container closures. ALLEN & HANBURYS Ltd. 27 Feb., 1968 [27 Feb., 1967], No. 9168/67. Addition to 1,061,810. Heading B8T. In order to retain the protective cap more firmly on the stopper, the construction of which is disclosed in parent Specification, ribs 8 or an annular bead (9), Fig. 6 (not shown), are provided. The cap will deform to conform with the contours of the stopper during sterilization. The cap may also have a bead adapted to engage in a groove on the stopper. A rubber diaphragm may be fitted externally of the stopper and held in position by an aluminium tear-off cap.
Patent GB-647851-A (GB)
Title: Improvements relating to noise suppression circuits in radio receivers
IPC: H03G11/04
Filed: 1948-04-01
Abstract: 647,851. Radio interference suppression circuit. FERRANTI, Ltd., JONES, W., and PIERSON, J. April 1, 1948, No. 9171. [Class 40 (v)] In a noise suppression circuit in a radio receiver, a biassed rectifier is connected in series in the audio frequency signal path, so that it is rendered non-conducting by noise impulses, the biassing voltage consisting of a potential proportional to the mean carrier level together with an alternating potential obtained from the output of the final audio frequency amplifier. The invention is applicable to television, sound or other radio receivers in which the bandwidth passed by the circuits up to the final detector stage is much wider than that passed by the audio stages. In Fig. 1, the final detector 9 of a superhet receiver supplies an audio frequency voltage to load resistor 8, which is applied through condenser 15 and diode 21 to the audio frequency stages via lead 26. Diode 21 is normally maintained conducting by a positive bias voltage from detector 9 which is applied through smoothing circuit 17, 18, and resistor 23. The final audio frequency output is also applied via transformer 30 to speech coil 24 which is connected in series with the diode supply circuit, so that the biassing voltage applied to the anode includes an alternating component which is in phase with and of the same amplitude as the signal inputs applied to the cathode. This enables the amount of positive D.3. bias to be reduced by means of the potentiometer circuit 17, 23, 16, so that the potential applied to the anode of diode 21 through resistor 23 is of similar waveform, but slightly more positive than that applied to the cathode. Diode 21 is thus maintained normally conducting. In the event of a noise impulse, the cathode potential of diode 21 rises steeply, but due to the attenuation of higher frequencies in the audio stages of the receiver, the potential applied to the anode resistor 23 changes only slightly so that the diode is rendered non-conducting, thus suppressing the noise impulse from the later audio stages. Alternative means such as a separate transformer winding or a potentiometer, may be used to supply the gate modulating voltage in place of the speech coil 24. Condenser 18 and resistor 17 may be selected so as to compensate for reduced feed-back to coil 24 at lowfrequencies.
Patent GB-804446-A (GB)
Title: Improvements in whirling apparatus for producing sprays of fluid and for other purposes
Inventor: SCHIPPERS JOAH FREDERICK
IPC: F22G5/12
Filed: 1956-03-23
Abstract: 804,446. Spray-producers. GORDON & CO., Ltd., J. March 19, 1957 [March 23, 1956], No. 9193/56. Class 69 (3). Apparatus of the type in which fluid is fed tangentially to a cylindrical whirl chamber, has the chamber comprised by upper and lower relatively rotatable members, Figs. 7 and 8 respectively, which mate upon complementary spiral surfaces bounding the chamber, and the chamber inlet is adjustable on relative rotation of the members and is formed between the plane surfaces J, J<1>, K<1>, K and G, G<1>, H<1>, H. The plane surfaces are each tangential to the wall of the whirl chamber, and the complementary spiral surfaces may be at right angles to the chamber axis or may be inclined thereto in which latter case the fluid feed is given an axial component. In Fig. 10 the upper and lower parts 54, 52 respectively of the whirl chamber are located in a body 50 supplied with liquid at 51. The parts are urged together by a spring 58 acting on a collar 59 on a spindle 56, and the upper part is engaged by a pin 57 extending from a flange 55 so that by turning a handle 61 the upper part is moved relative to the lower part to vary the chamber opening 62. In Fig. 11 the spray is emitted radially of a body 50 having a liquid inlet 51. The whirl chamber has several tangential inlets 62 which are adjusted by the rotation of the part 54 by means of a spindle 66, arm 67 and a rod 69 extending from a ball 68. The rod 69 engages a sleeve 63 keyed to a shaft 56, and the shaft flange 55 engages the part 54. Fig. 12 shows a duplex whirl chamber with axially spaced inlets 62 and 62a through which two different liquids are supplied for mixing before' discharge. An inlet 51 supplies chamber section T, and inlet 51a supplies chamber section 5. The chamber is comprised by the co-operating parts 50, 74 and 54, and springs 58, 58a urge the parts together. Handles 61, 61a produce relative rotary movement between the parts to adjust the inlets 62, 62a. Specification 555,813 is referred to.
Patent GB-678825-A (GB)
Title: Improvements in or relating to piezo electric units
IPC: H03H9/58
Filed: 1950-04-14
Abstract: 678,825. Piezo-electric crystals. GENERAL ELECTRIC CO., Ltd., and STEVENSON, S. A. April 13, 1951 [April 14, 1950], No. 9242/50. Class 40 (viii). A piezo-electric unit comprises three or more plates 1 and 2 bonded together to form two plane parallel layers, each layer having the same width and thickness as a single plate, and the two layers being arranged so that joins along the length of each are never situated opposite joins in the other. In the arrangement shown, this is effected by using plates 1 all of the same length, and two plates 2 of half length, are disposed in each layer and at the opposite ends of the unit. The layers are bonded by cement 3, which may be conducting and form one of the electrodes of the unit. The remaining electrodes are formed by layers 9 on the outer surfaces of the layers. A spot 4 of conducting cement on the side of the unit connects the layer 3 to a terminal wire 5, while terminal wires 7 are connected to electrodes 9. Specification 661,690 is referred to.
Patent GB-492450-A (GB)
Title: Improvement in sailing boats
IPC: B63C15/00
Filed: 1937-04-01
Abstract: 492,450. Yachts. THOMAS, J. April 1, 1937, No. 9280. [Class 113 (ii)] A sailing boat is provided with two fixed fins 2, one on each side, formed at their bottoms with sole pieces 4 which taper in the longitudinal direction. In a modification, two fins are provided on each side. These fins act as bilge keels and also as supports when the vessel grounds.
Patent GB-1216376-A (GB)
Title: Welding gun
Inventor: BOWERS ANTHONY
IPC: B23K9/28
Filed: 1969-05-15
Abstract: 1,216,376. Arc welding electrode holders. H. EDEN. 15 May, 1969, No. 9377/68. Heading H5H.  A welding gun including a metal support rod 1, on the end of which is fixed a metal holder 2 for a weld rod electrode 6, is characterized by an inductance arrangement comprising a first and a second coil 7, 10, of insulated wire wound on the support rod 1, an end 8, 11 of each coil being connected to the rod 1 and the other ends 9, 12, being connected together to the input lead 14 from the current source 22. The inductance arrangement presumably aids arc stability. Coil 7 is wound in two layers. The coils 7, 10 are housed in a gun-shaped, ventilated casing 18 of moulded glass fibre impregnated with epoxy resin. Rod 1 and holder 2 are of brass, and the weld rod 6 is held in bore 4 of holder 2 by a clamping screw 5. An aluminium splatter disc 20 protects the gun during welding. The coils 7, 10, are wound between rubber bushes 13 mounted on the rod 1. The source 22 is D.C., but may be A.C.
Patent GB-236310-A (GB)
Title: Improvements in machines for cutting articles from metal bars and perforating and shaping them
IPC: B21K1/64
Filed: 1924-04-14
Abstract: 236,310. Malmedie & Co., Maschinenfabrik Akt.-Ges., and Globig, A. April 14, 1924. Nuts.-The stationary tools 10, 13, 66, 66<1> of a nut-blank making machine are mounted in a tool-holder 72 which is detachable from the machine and carries guides for the tools 8, 9 which are mounted in a slide 6 operated by a crank 15. A rod 12 is fed under the spring- pressed punch 13, which holds it up to a stop 19. The tool 8 then cuts a blank from the rod 12 and presses it over the punch 13 and against the crowning-die 66. During the return of the tool 8 a pawl 69, Fig. 3, acts on a lever 70 which, by means of a link 74, rotates a fork 67 to engage the blank and force, it back over the punch and past edges 66<1> which remove the burr. Then a nose 81, Fig. 6, of a lever 79 is moved up by a link 90 to engage a lever 82 and cause an arm 86, mounted on a common shaft 84, to sweep the blank laterally into a shoot. The pawl 69 and nose 81 are pivoted so that they can move aside during the up stroke. The bar 12 is fed by jaws 17, 17<1>, Fig. 1, on a slide 27 which is reciprocated by a cam 18, lever 20, and link 23. The tools 9, 10 are for cutting the square blank into hexagonal form.
Patent GB-972284-A (GB)
Title: Improvements relating to processes for removing acidic components from gaseous mixtures
Inventor: GREGORY SYDNEY ABSELL
IPC: B01D53/04
Filed: 1960-03-17
Abstract: 972,284. Separation of acid gas and water vapour from gaseous mixtures. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 14, 1961 [March 17, 1960], No. 9501/60. Heading B1L. Acid gases, e.g. H2S, CO2, and H2O vapour, are removed from gaseous mixtures by subjecting the gas to at least two preliminary drying stages before passing to a molecular sieve adsorbing unit where the acid gas is removed. The gas enters a refrigerator 5 at 70 ‹F. which is in the first drying stage whereby the dew point of the gas is reduced to +5 ‹C. or less and which comprises a condenser circuit 6 with cooler 7. Condensate is collected at 9 while gas leaves via 8 to the second drying stage whereby the dew point is reduced to -60 ‹C. or less and which comprises molecular sieve adsorbers A, B for alternate use and reactivation, and heater 12 and cooler 13. The gas then passes to adsorber stage 3 comprising molecular sieve vessels C, D and E one of which is used while two are reactivated at below 300 ‹C., e.g. gas from stage two is blown from 14 through E to line 15 and heat exchangers 16 and 17 while hot gas from heater 18 (which may be replaced by heat transfer elements in vessels C, D, E) passes through D and via line 19 to heat exchangers 20, 21 and 22 (which may be heated by hot fuel gas). Some purge gas and the CO2 and H2O vapour is vented through 23. Purified gas is delivered by line 24.