baber/WOPTO huggingface dataset:
Patent GB-330129-A (GB)
Title: Improvements relating to safety mechanism for sporting guns
IPC: F41A17/22
Filed: 1929-05-29
Abstract: 330,129. Bowerman, C., Crump, R. E., and Bowerman, Ltd., C. May 29, 1929. Breech actions, drop-down barrel; safety appliances; trigger-guards.-A safety plate for locking the trigger or triggers of a sporting gun or the like, is slidably mounted on the triggerplate and has a downward projection disposed within the trigger-guard. The device is shown as applied to a double-barrelled gun. The trigger-plate 1 and trigger-box 2 have a common central slot 3 in which are mounted the triggers 4, 5 and a safety plate 7. The safety plate is disposed between the two triggers and is slotted to allow a longitudinal sliding movement over the trigger pivot pin 6. A downward extension 7<1> of the safety plate is disposed adjacent the triggers and has a forward extension which projects through a slot 11 in the trigger-guard 12. A pin 8 on the. safety plate engages with the upturned heels of the triggers and serves to lock the latter against movement. A leaf spring 10 mounted on the trigger-plate engages with a pin 9 on the safety plate and serves to hold the latter in either its locked or unlocked positions. A further safety device is in the form of an unturned tongue 14 on the safety plate which coacts with the bolt 15 when the gun is opened.
Patent GB-879409-A (GB)
Title: Improvements in or relating to short-circuit devices for wave-guides
Inventor: CHIRON BERNARD PIERRE
IPC: H01P1/11
Filed: 1960-05-10
Abstract: 879,409. Waveguide ferrite devices. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. May 10, 1960 [June 3, 1959], No. 16497/60. Class 40(8) A waveguide switch utilizing the gyromagnetic effect comprises a section 1 of rectangular waveguide containing a gyromagnetic element 2, e.g. of ferrite, and means, e.g. an adjustable electromagnet 5, for applying to the element a field which makes an angle of between 40 and 50 degrees with the waveguide axis and lies parallel to one of the walls. It is stated in the Specification that, with the polarizing magnetic field orientated as set forth, there exists a value of field intensity for which the main component of the magnetic field of the propagated wave becomes zero at the surface of the gyromagnetic body. Under such circumstances the body acts as a wave reflector. In the absence of a magnetic field, the permitivity and permeability of the body are such that its presence does not affect wave propagation. The body may be in the form of a circular rod of ferrite almost filling the waveguide section. Ideally the field should make an angle of 45 degrees with the waveguide axis and such a field may be obtained by using two independently adjustable solenoids 36, 38, Fig. 7, producing mutually orthogonal fields respectively H 1  and H 2 . The TR circuit of Fig. 3 uses such a switch 2 in the receiver branch 17 of the circuit. Apart from this feature, the circuit consists of a conventional 4-port circulator having a pair of directional coupling slots 13, 14 modified for non-reciprocal operation by the insertion of a dielectric element 19 and a non-reciprocal element 20 in the guides between the couplers. The branches 15, 16, 18 are connected respectively to a transmitter, an aerial and a dummy load, the direction of circulation being 15-16- 17-18. When the transmitter is operating, the switch 2 is pulsed to ensure that any energy entering the branch 17 is reflected by the switch to the load branch 18. In the circulation of Fig. 4, two switches 22, 23 are located between directional couplers 13, 14. In a modified form of this circulator (Fig. 5, not shown), a further switch is inserted in the branch 16. By operating the switches one at a time or both simultaneously, the branch 15 may be connected to any one of the branches 16, 17 and 18. Input energy from branch 15 is directed to branch 16 when the switches are unenergized and towards branch 17 when they are energized. A pair of switches 28, 29, Fig. 6, may form the boundaries of a resonant cavity 27 fed from a source 30. The resonance frequency may be slightly adjusted by varying the field intensities. No resonance exists when the switches are not simultaneously energized.
Patent GB-767977-A (GB)
Title: Shock absorber
IPC: F16F9/348
Filed: 1954-06-03
Abstract: 767,977. Hydraulic shock absorbers. KONING, A. A. DE, and KONING, K. K. K. DE. June 3, 1954 [March 3, 1954], No. 16503/54. Class 108(3). A shock absorber comprises a cylinder divided into two chambers 13, 14 by a piston 9 having passages 17, 27 closed by valves 16, 26 for connecting the chambers 13, 14, and an additional chamber 22 connecting the chamber 13 by means of one or more fine bores 20, 21, the flow area of which may be pre-set (thereafter remaining constant during operation), and a narrow annular channel X unobstructed by valves connecting the chamber 22 and the chamber 14. In Fig. 2, on rebound, liquid flows through the ports 27 to lift valve 26 against spring 28, and flows through ports 18, 19, 20 and 21 into the chamber 22. The liquid escapes from chamber 22 via the annular channel X defined by a sleeve 24 threaded on the piston rod 8, and the internal periphery of both the valve 26 and the recess in the piston which defines the chamber 22. An annular member of rubber or other material having an L-shaped cross-section, Fig. 3, (not shown) may be disposed between the end of the spring 28 and the valve 26. This defines the chamber 22 instead of a recess in the piston. In a similar construction, Fig. 4 (not shown) the valve 26 is of L- shaped cross-section. In Fig. 6 the piston is formed by a piston body proper 9 and a nut 32. The passages 27 are formed partly in the nut 32 and the chamber 22 is connected to the cylinder chamber 13 by ports 35, 34 and 33 which lead into the passages 27.
Patent GB-770737-A (GB)
Title: Improved apparatus for the recording of variations of elongation in structures
IPC: G01M5/00
Filed: 1955-06-08
Abstract: 770,737. Strain-recorders. LUNDBERG, B. K. O. June 8, 1955 [June 9, 1954], No. 16514/55. Class 106 (2). The occurrences of elongation changes due to changing loads, e.g. in the structure of an aircraft or of a ship, are mechanically transmitted to recording counters. A beam 9, Fig. 1, is secured at 11 to the structure 1 and passes through a bearing 5 on a plate 3 secured to the structure 1 at a distant point 7. The relative movements of the beam 9 and structure 1 are counted on recording counters 17, 19, one for each direction of movement, by resilient pawls 13, 15 mounted on the beam 9, locking pawls 21, 23 being provided. As shown, the counters record positive or negative changes in elongation of the structure 1 which exceed a predetermined magnitude. In a further embodiment, the movements of the beam 9 are amplified by a lever system before application to the counters. In another embodiment, the amplified movements of the beam 9 rotate the drive of a recording surface, the recording means itself being connected also, through a lostmotion device, to the levers amplifying the beam movement.
Patent GB-791950-A (GB)
Title: Improvements in textile spinning machines
Inventor: WARD KENNETH
IPC: D01H1/42
Filed: 1955-06-10
Abstract: 791,950. Balloon control rings. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd. April 27, 1956 [June 10, 1955], No. 16680/55. Drawings to Specification. Class 120(2) A balloon control ring for use on a textile spinning machine comprises a metal annular base, coated, at least on the inner surface thereof, with a plastic. The plastic may be sprayed on or applied by dipping or it may The formed separately and applied to the metal ring and secured thereon by any means, such as by an adhesive. Alternatively the plastic may be moulded on to the metal ring.
Patent GB-162573-A (GB)
Title: Improvements in and relating to auxiliary air valves for internal combustion engines
IPC: F02D9/00
Filed: 1920-06-22
Abstract: 162,573. Pledger, D. J. June 22, 1920. Closure members, simple lift.-Auxiliary air is admitted transversely into the induction pipe 17 of an internal-combustion engine through a conical nozzle 24 fitted with a conical valve 40, which in all operative positions projects beyond the end of the nozzle, so that the air jet is in the form of a hollow cone. The valve is normally closed by a spring 37 and is opened by means of a pedal connected by a rod 53 and an arm 45 to a spindle 41 having an arm 43 in engagement with a recess 44 in the valve. The rod 53 is secured to a wristpin 49 on a slidable collar 48 secured to the arm 45 by a set-screw, and the arm 45 is adjustably secured to the spindle 41 by a split clamp 46. Rotation of the valve body 35 may be prevented by a set-screw 51 engaging a groove in the valve body.
Patent GB-731888-A (GB)
Title: Improvements in or relating to methods of and apparatus for deflecting pneumaticallyconveyed loose material
IPC: B65G53/52
Filed: 1953-06-18
Abstract: 731,888. Pneumatic conveyers. MIAG MUEHLENBAU UND INDUSTRIE GES. June 18, 1953 [June 24, 1952], No. 16869/53. Class 78 (1). In order that the material shall not be damaged by impact or friction at a point where the direction of conveyance is changed, a horizontal section 7 of the pipe line is connected to a vertical section 2 by a casing 1 into which an enlargement 6 of the section 7 merges. The speed of conveyance falls in the enlargement 6 and the material falls on to the sloping bottom 12 along which it travels and is directed by a pair of plates 9 into an opening in the section 2 formed some distance above its open lower end. Baffles 4, 11 deflect the air stream as indicated by the arrow 5 to enter the open end of the section 2. The baffle 4 is fixed, but the baffle 11 is pivoted and is held in the desired position by springs or a counterweight.
Patent GB-383575-A (GB)
Title: Improvements in and relating to ships and other screw-propelled vessels
IPC: B63B1/08
Filed: 1932-06-15
Abstract: 383,575. Sterns. HEPPELL, W. J., Meathfield, Wardley, Pelaw-on-Tyne. June 15, 1932, No. 16926. [Class 113 (ii).] Flow conditions to the propeller are modified by providing a cruiser type stern substantially flat or U-section in transverse cross section but constructionally dipped as at Q, K ahead of and abaft the propeller E. A vertical plate P is arranged close to the propeller and rudders as described in Specifications 317,417, [Class 113 (ii), Ships &c., Kinds &c. of], and 373,172 may be employed. Ships with counter sterns may be provided with external structures to give a cruiser stern with the desired characteristics. Specifications 288,689 and 310,768, [both in Class 113 (ii), Ships &c., Kinds &c. of], also are referred to.
Patent GB-111514-A (GB)
Title: Improved Means for Casting.
Inventor: HALL ISAIAH
IPC: B22D33/02
Filed: 1916-11-27
Abstract: 111,514. Hall, I. Nov. 27, 1916. Delivering molten metal.-In casting brass bars, glass, &c., a detachable funnel o<1> is held by projections on a cross-bar m secured to the furnace frame from which it can be removed by a blow, or the funnel is secured to each mould. Thefunnel is of elliptical form with the outlet o<2> awav from the furnace. The furnace a is of the kind in which the trunnions b of the body c are as near as practicable in alinement with the pouring- spout of the lip d. The furnace is tilted by a chain g engaging a quadrant h in the body c and a wheel f on a shaft c operated by a hand-wheel i and worm gear j. The moulds are mounted on a suitable carriage for straight line movement, or on a turntable q which may be rotated and adjustecl in height, by hand-actuated mechanism.
Patent GB-325181-A (GB)
Title: Improvements in kneading machines
IPC: A21C1/08
Filed: 1929-06-04
Abstract: 325,181. Ponisch, M. June 4, 1929. Roller apparatus. - A kneading-machine comprises a horizontal rotary table, a vertically adjustable kneading roll, and a blade mounted so as to be adjustable, about a vertical axis and shaped like a plow for turning the material over. The table 1, cooled by water sprayed on its under surface, is rotated by bevel and reducing gear from a main shaft 30, which also drives the kneading roll 3 through chain gearing 26, 24. The roll 3 is mounted on pivoted arms 20 and can be adjusted vertically by a screwed rod 18 operated by bevel gear from a hand-wheel 13. The blade 4 is pivoted to a vertical rod 5 and is furnished with a handle 4a by means of which it can be given angular adjustment.
Patent GB-595521-A (GB)
Title: Improvements in dispensing apparatus
IPC: G07F13/06
Filed: 1945-07-05
Abstract: 595,521. Reversing gear. POLSEN, S. D., and NELSON, S. H. July 5, 1945, No. 17208. [Class 80(ii)] [Also in Group XVIII] In a liquid-dispensing apparatus of the dipping type (see Group XVIII) in which an open chamber or dipper is lowered and raised several times before being discharged, a motor drive through an automatic reversing mechanism effects the reciprocations, said mechanism incorporating a gearing in which idle pinions are mounted on a revolving pulley, movement of which is controlled by a brake operated by a rocking lever linked with a clutch controlling a direct drive. A motor driven shaft 45, Figs. 2 and 5, has keyed to it a bevelled gear 116 meshing with the idle pinions 122, 123 mounted in a loose carrier 118 which is controlled by brake linings 129, 130 Fig. 4 actuated by the wedge 140 of a pivoted arm 64, said'arm also actuating a clutch plate 55 slidably secured to the shaft 45. Fixed together' and loosely mounted on the shaft 45 are a bevelled gear 124, a worm 50 carrying a nut 91 rotation of which is prevented by the arm 109 sliding in a groove 110, and a reel 48 on which is wound the chain 52 attached to the aforementioned dipper 24, Fig. 8. Pivoted on the nut 91 is a plate 85 equipped with pins 93 which contact a tripping lever 97 rotating a plate 85 to present different sides 143, 145 &c. in turn to a screw 84 attached to a lever 81, said lever rocking a yoke 76 on which rides the arm 64 on one of two seatings 73 or 74. When the cycle of operations is started the mechanism is in the position shown in Figs. 2, 5 and 8. Insertion of coins starts the motor, the drive being momentarily direct through the clutch 51 to the reel 48. Contact of the side 143 of the nut 85 with the screw 84 rocks the yoke 76, changes the arm 64 from seating 74 to 73, disengages the clutch plate 55 and applies the brake shoes 129, 130. The drive is now through the bevelled gear 116 and the movement of the nut 91 is reversed, the chain 52 being unwound from the reel 48 until the cam surface 90 strikes a button 72 on the arm 64 which is then changed to the seating 73 again, releasing the brake shoes 129, 130 and letting in the clutch plate 55. The drive is direct again and the chain 52 is wound up on the reel 48 until the side 145 of the plate 85 strikes the screw 84 and starts the cycle of operations again. When the next long side 144 of the plate 85 almost contacts the screw 84, the dipper 24 is in the pouring position Fig. 8 and a switch 151, Fig. 5, is thrown out by the nut 91, stopping the controlling motor. A lever 100 may lock the tripping device 97 in an inoperative position so that only side 143 or 144 of the plate 85 is exposed to the screw 84 and thus each movement of the dipper 24 becomes a dispensing movement.
Patent GB-1472276-A (GB)
Title: Method and apparatus for correcting printing plates
IPC: B41C1/10
Filed: 1974-04-19
Abstract: 1472276 Correcting printing plates; heated pencil AMERICAN HOECHST CORP 19 April 1974 [24 April 1973] 17272/74 Headings B6C and B6P A method of correcting printing plates comprises bringing solid, ink-receptive, material at least into close proximity with the plate and heating both the material and the plate to deposit and bond the ink-receptive material thereto. Suitable apparatus comprises a carbon core 5 in a sheath 3 forming a stylus 1 connected to power source 10, the passage of electric current being sufficient to secure deposition and bonding of carbon to the plate 2 in a required area 13. Further disclosed as apparatus according to the invention are constructions wherein the stylus is vibrated in addition to being heated, e.g. by means of a crystal oscillator, Fig. 2 (not shown), or a magnetostrictive vibrator; alternatively, the heat can be generated by an ultra-sonically vibrated stylus through frictional contact with the plate, Fig. 4 (not shown). Other stylus materials include copper, brass, bronze or silicon, and the core can be advanced as it is consumed, Fig. 3 (not shown).
Patent GB-441332-A (GB)
Title: Manufacture of a colouring matter
IPC: C09B47/067
Filed: 1934-06-11
Abstract: A green colouring matter of the phthalocyanine series is prepared by condensing phthalonitrile with metallic lead or a lead compound. Suitable lead compounds are the monoxide, carbonate, acetate, or sulphide and in examples phthalonitrile is heated with lead-foil, litharge and lead carbonate at about 230--270 DEG  C. Specifications 322,169, [Class 2 (iii)], 389,842, 390,149, and 410,814 are referred to.
Patent GB-826792-A (GB)
Title: Protective means for electric circuit socket connectors
Inventor: BAIN ROBERT
IPC: H01R13/453
Filed: 1957-05-31
Abstract: 826,792. Two-part couplings. ALLDAY & SON (1922) Ltd., H. May 22, 1958 [May 31, 1957], No. 17306/57. Class 38 (1). A socket connector consisting of a contactcarrying base a and a cover m, apertured for the passage of plug pins u, v, has an earth-pinoperated shutter r slidable between the base and cover and actuated by a spring-loaded bar g slidable in an inclined recess b and having a pair of horns h which embrace the shutter, and a hook-shaped end i which engages in the earth pin hole k in the cover. On insertion of the plug, the earth pin u disengages the hook i from the hole k and pushes the bar g down into the recess b against the spring p, thus moving the shutter away from the mouths of the live contacts c. On removal of the plug, spring p returns the shutter to its operative position shown.
Patent GB-447310-A (GB)
Title: Improvements in or relating to electric generators
IPC: H02K23/02
Filed: 1935-06-15
Abstract: 447,310. Exciting dynamo electric machines. KABUSHIKI-KAISHA HITACHI - SEISAKUSHO, 20, Marunouchi Nichome, Kojimachiku, Tokio. June 15, 1935, No. 17324. Convention date, July 10, 1934. [Class 35] A generator is excited by the resultant voltage of two exciters coupled thereto, each exciter being excited by the main generator and one of the exciters, which has an unsaturated core, has a differential winding energized by the resultant voltage of the two exciters. In the form shown, the unsaturated exciter E<2> is excited by windings f<2>, f<3> in opposition and the saturated exciter E by the winding f only, both windings f<1>and f<2> being supplied by the main generator G, the field winding F of which, together with winding f<3>, are excited at the resultant voltage of the two exciters. Instead of two separate exciters, a single armature exciter with two field systems may be used, the two field systems having windings similar to those described above.
Patent GB-220608-A (GB)
Title: Improved arrangements for increasing the frequency of electric currents
IPC: H03B19/00
Filed: 1924-07-19
Abstract: 220,608. Touly, M. L. Aug. 18, 1923, [Convention date]. Generating c i r c u i t s employing vacuum or low-pressure apparatus; thermionic generators. - Single-phase or polyphase currents are converted into single-phase alternating or undulating currents of higher frequency by means of low-pressure gas or vapour apparatus in which ionization occurs, such apparatus being provided with grids which are charged by means of an alternating current which is displaced in phase with respect to the supply current. In the arrangement shown in Fig. 1, a single-phase generator 6 is connected to the anodes 4, 5 of a mercury-vapour lamp through an autotransformer 7, the cathode 1 being connected to the middle point of the auto-transformer through an oscillating circuit 8, 9 tuned to dcuble the frequency of the generator 6. The grids 2, 3 are connected across the condenser 11 of a circuit tuned to the frequency of the generator, the. inductance 12 of this circuit being coupled to the auto-transformer. The grid potentials are displaced 90‹ in phase from the corresponding anode potentials, and a series of impulses at twice the frequency of the generator is applied to the tuned circuit 8. 9, which may represent a wireless antenna, a high-frequency electric furnace, or the like. In another arrangement, Fig. 3, a single-phase current from the generator 20 is converted into twophase currents by a phase-converter 21, the twophase currents being applied to the anodes of mercury-vapour lamps 22, 23, which cause currents to pass alternately in opposite directions through the primary windings 25, 26 of a transformer 24. The grids of each lamp are connected to tappings on the phase supplying the other lamp, and single-phase current of double the frequency of the generator is obtained in the secondary winding 27 of the transformer. In another arrangement, three-phase current is transformed into six-phase current and alternate phases of the latter are connected to the anodes of a pair of lamps, the cathodes of which are connected to the neutral point through the primary windings of a transformer. A single-phase current of three times the frequency of the original three-phase current is obtained in the secondary winding. The grids are excited with currents of the desired phase by means of a phase transformer or inductance. In a modification, Fig. 9, a lamp 52 with six anodes connected to the terminals a - - f of the six-phase transformer 51 is employed, and rectified impulses are applied to a circuit 54, 55 tuned to six times the original frequency. The grids are excited through inductance coils 62 - - 67 connected to the proper phases, and are connected to the cathode through resistances 56 - - 61. The amplitude of the multiple-frequency currents mav be varied by changing the phases of the potentials applied to the grids.