baber/WOPTO huggingface dataset:
Patent GB-878829-A (GB)
Title: Improvements in or relating to synchronous dynamo electric machines
IPC: H02K3/20
Filed: 1958-03-11
Abstract: 878,829. Dynamo-electric machines. SIEMENS-SCHUCKERTWERKE A.G. March 11, 1958 [March 12, 1957], No. 7882/58. Class 35. In a synchronous dynamo - electric machine having a salient pole rotor formed by a plurality of magnetic laminations 7 held between end-plates 3, there is provided in the rotor a damper winding consisting of electricallyconductive bars 6 disposed in the salient poles, and short-circuiting connections consisting of laminations 10 of the same shape but higher electrical conductivity than the magnetic laminations 7 and placed between the latter and the plates 3; if the magnetic laminations 7 form a ring providing the poles each such connection short-circuits all the damper bars 6, or if, as shown, the pole laminations 7 are mounted on a hub 8 the connections 10 short-circuit only some of the damper bars 6 and an additional short-circuit ring 11 at each end of the rotor interconnects all such connections. The laminations 10 are of copper.
Patent GB-278962-A (GB)
Title: Improved device for trapping rats or other animals
IPC: A01M23/00
Filed: 1927-03-22
Abstract: 278,962. Graham.9 K. E. March 22, 1927. Animal traps. - A roof-plate A of wood with a thin tin lining B is supported about 4 in. above a similar base-plate C by columns F and supports by staples X, Z wire prongs arranged in pairs consisting of advance members D and rear members G. The prongs G are bent to form triggers H that engage portions O of the rear prongs G and prevent such prongs being lifted until the corresponding advance prongs are raised, the triggers H then passing into recesses V. A rat attracted by bait arranged in the centre of the trap pushes up the forward prongs and then the rear ones, the prongs falling behind him. He is unable to lift the rear prongs in attempting to escape, as such prongs are locked by the triggers H engaging the portions O of the front prongs. The whole or a part of the roof or the base may be hinged to provide a door for removal of the catch.
Patent GB-1410572-A (GB)
Title: Tobacco leaf handling
IPC: A24B3/16
Filed: 1974-02-21
Abstract: 1410572 Feeding tobacco leaves on to a belt conveyer AMF Inc 21 Feb 1974 [29 Nov 1973] 8012/74 Headings B8A and B8S Tobacco leaves are fed by a conveyer C into a hopper 12 having contra-rotating rollers 16, 18, and three series of rods 30, 30<SP>1</SP>, and 36, for respectively metering the flow of the leaves, and distributing them evenly on the surface of a conveyer belt 56. The leaves are then scanned by a device 60, and incorrectly coloured leaves are thereby rejected by the action of a jet 64. The space between the rollers is adjustable and the end wall 14 of the hopper 12 may be correspondingly adjusted. The rods 30 and 30<SP>1</SP> are mounted on parallel bar members 26, 28 (Fig. 3), and the rods 36 together with alternately spaced shorter rods 34, are mounted on a similar bar member 32. The members 26, 28, and 32, are rigidly connected together and the whole assembly so formed, is oscillatable horizontally (laterally relative to the running direction of the belt 56) by a motor 40.
Patent GB-505136-A (GB)
Title: Improved means for securing railway rails to sleepers
IPC: E01B9/68
Filed: 1938-03-15
Abstract: 505,136. Railway chair-pads. STEVENS, A. H. (Resilient Products Corporation) March 15, 1938, No. 8027. [Class 104 (ii)] A resilient chair-pad b comprises a base bl supporting a' chair plate a, and an integral member b<4> extending through an aperture a<4> in the plate a and supporting the rail base clear of the chair plate. The pad is composed of natural or synthetic rubber or fabric enveloped by rubber, and the base b<1> may be reinforced by fabric or cord material. The holes b<2>, b<3> for the rail and plate spikes are smaller than the cross-section of the spikes to prevent the passage of moisture.
Patent GB-959163-A (GB)
Title: Wire wrapping tool
IPC: H01R43/033
Filed: 1963-02-28
Abstract: 959,163. Wrapping wire on terminals. INGERSOLL-RAND CO. Feb. 28, 1963 [March 7, 1962], No. 8029/63. Heading B3E. A wire wrapping tool having a spindle rotatively driven by a pneumatic motor and connected to rotate a wire receiving means for wrapping a wire includes a valve actuable to control flow of pressurized fluid to the motor, stop means connected for conjoined rotation with said spindle, and control means disposed to engage said stop means and said valve, said control means being supported for movement in one direction to substantially simultaneously disengage from said stop means and actuate said valve to an open position to allow operation of said motor and in the other direction reengage said stop means to stop rotation of the spindle and substantially simultaneously close said valve to cease operation of the motor. Wire lying in a groove 59 in a bit 52 is wrapped around a terminal received in a bore 58 in the bit 52 upon rotation of the bit 52 by a spindle 42 itself driven, through planet pinions 47 carried by a flanged end 66 of the spindle 42, by a pneumatic motor 13. To stop the tool a trigger 33, previously gripped to hold open a valve 27 in the air supply line to the motor 13, is released. Whereupon air pressure closes the valve 27 and a spring 82 urges the trigger about its pivot 76 so as to hold a portion 81 on the trigger against a spiral cam surface 67 on a sleeve 65 on the spindle 42. The arrangement is such that the trigger part 81 engages a stop shoulder 68A on the sleeve 65 as the valve 27 closes completely. The sleeve 65 is connected to the spindle 42 through balls 72 engaging depressions in the end of the sleeve and in a plate 70 splined on the spindle 42, and urged towards the sleeve 65 by a spring 74, this connection functioning as a shock absorber. The wrapper bit 52 thus always stops rotation in the same angular position. U.S.A. Specification 2,884,685 is referred to.
Patent GB-174956-A (GB)
Title: Improvements relating to automatic valves for admitting gaseous pressure to sealed vessels to discharge liquid therefrom
IPC: F16K31/22
Filed: 1920-11-10
Abstract: 174,956. Clark, G. E. Nov. 10, 1920. Ball and float valves.-In a valve device for admitting compressed air to closed vessels to discharge liquids, more particularly acids, therefrom, a pipe a connects the liquid-container b to the valve chamber c in which a float d having a ,conical valve e is arranged. The passage g, h is connected to the compressed-air supply, and vent passages j are arranged in the plate carrying the pipe g. Liquid inlet and outlet pipes y, x are provided for the vessel b. When the float d is raised by the liquid, the vent passages w are closed by the float, and the rod k also closes the passage m leading to the chamber n. Compressed air is simultaneously admitted by the valve e to discharge the liquid. When the vessel b is empty compressed air passes up through the pipe z to equalize the pressure on the upper side of the float, which then falls and closes the valve e and opens the vent openings so that the vessel b may refill. The pipe p may be carried above the supply tank to prevent loss of liquid if the valve fails, and may be provided with a stop valve so that the vessel b may be discharged by admitting air through the pipe a<1>.
Patent GB-901170-A (GB)
Title: Preparation of 2-chloro-azacyclo-2.3-alkene-n-carbochlorides
IPC: C07D223/06
Filed: 1959-09-18
Abstract: The invention comprises (1) 2 - chloroazacyclo - 2,3 - alkene-N-carbochlorides other than 2 - chloro - azacyclo-2,3-pentene-N-carbochloride and 2-chloro-azacyclo-2,3-heptene-N-carbochloride and (2) the preparation of 2-chloro-azacyclo - 2,3 - alkene-N-carbochlorides, other than 2-chloro-azacyclo-2,3-heptene-N-carbochloride, by reacting in the liquid phase an appropriate o -lactam with phosgene, the lactam being used (i) as such, and while ensuring that at all or substantially all times during the reaction there is an excess of the phosgene over the stoichiometric amount (i.e., a molar ratio of phosgene to lactam of more than 2 : 1), or (ii) as the hydrochloric acid salt.
Patent GB-126798-A (GB)
Title: Improvements in or connected with Mechanism for Producing Motions Representing a Function of Two Independent Variables in Calculating Apparatus.
IPC: G06G3/00
Filed: 1918-05-16
Abstract: 126,798. Barr & Stroud, Barr, A., and Stroud, W. May 16, 1918. Plane-trigonometry calculators; gunnery calculators. - Mechanism for producing a movement representing a function of two variables, that is for solving z = f (x, y), especially for use in gunnery calculations and in calculations as to the position of aircraft, comprises a slightly flexible beam, deformation at right-angles to the surface of which at a number of positions in its length is produced by cams, and a guided contact member adapted to bear on the surface of the beam, with provision for effecting the longitudinal adjustment of the contact member relatively to the positions of deformation. In the particular example described, the invention is applied, in anti-aircraft gunnery, to determine the tangent elevation, when height and angle of sight are known. As shown in Fig. 1, the angle of sight corresponds to the rotation of the shaft A upon which are fixed two dimensional cams 1, 2, 3 against the surfaces of which is pressed a guided lath c upon which rests a contact roller 5 carried by a rod 6 sliding on a guide 7 fixed to a nut 9 mounted on a screw 8 which is rotated to set off height. The movement of the rod 6 gives the tangent elevation and may be transmitted to a dial. In a modification, the beam consists of a series of jointed rods, each joint being supported by the edge of the cams 1, 2, 3. In a further modification, where the cams would be very steep, rollers are arranged between the cams and the beam, the rollers being guided by a straight-line link-work. In a still further form, shown in Fig. 7, the beam may be supported by racks G<1> which are moved by spur wheels D<1> loose on a shaft B and in one with a spiral toothed gear wheel B<1> driven by a similar and complementary wheel A<1> on the shaft A. In the general solution of z = f (x, y) provision must be made for the case in which the value of z attains a maximum or minimum for a particular value of x or y during continuous change in the same direction of x or y. In the form shown in Figs. 8 and 9, a negative element is introduced into the gearing to provide for a minimum value. The jockey element J of a differential gear is fixed to the shaft A and gears with wheels E, E<1> loose on the shaft. Fixed to these are disks F, F<1> in which are cut scrolls K, K<1> of different shape into which take pins P, P<1> fixed to a lever L rocking about a fixed axis. The wheel E may thus be given any desired portion of the movement of the shaft A. In one with the wheel E is a bevel 21. The negative element comprises a drive from a pinion 16 fixed to the shaft A through wheel 17 and annular wheel 18 which carries a bevel 19. The bevel 19, 21 gear with a bevel-wheel 20 carried by a spur-wheel 22 and tend to move this wheel in opposite directions. The wheel 22 gears with a rack 23 supporting the beam which at this point may be moved up or down.
Patent GB-107376-A (GB)
Title: Improvements in or relating to the Testing of Iron Materials.
Inventor: POZZO ALBERTO
IPC: G01R33/12
Filed: 1917-06-08
Abstract: 107,376. Pozzo, A., and Colonnetti, G. June 16, 1916, [Convention date]. Magnetic tests.-The permeability of a piece of iron a, Fig. 1, is compared with that of a standard piece b by connecting secondary coils II<a>, II<b> in opposition to an indicating-instrument V such as a ballistic galvanometer and causing variations in the magnetic flux by means of primary coils I<a>, I<b>, as by interrupting or reversing the current or by moving the secondary coils, or by moving permanent magnets. A set of standard pieces may be used by finding one to balance the test piece; or the standard piece may be replaced by an equivalent current. The primary and secondary coils may be mounted on a ring-shaped core n, Fig. 3, with a gap for the insertion of the iron piece a; or they may be arranged one inside the other for application to the face of the test piece as indicated in Fig. 5. Or the coils may be wound in the form shown in Fig. 7 and applied edgeways. To avoid errors due to differences in shape, the secondary coils may be subdivided, the sections of each coil being connected in opposition.
Patent GB-403607-A (GB)
Title: Improvements in and relating to hydraulic motors
IPC: F03B17/06
Filed: 1932-03-19
Abstract: 403,607. Water motors. VULLIERME, M., 84, Rue Michel Ange, Paris. March 19, 1932, No. 8243. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 21, 1932]. [Class 110 (iii).] Relates to endless - chain motors having vertical or horizontal shafts. The chains 8, 9 which carry the vanes 10 pass over sprockets 18, 19 on the shafts 1, 2. The water, entering in the direction of the arrow 5, acts first on the vanes in the inlet side, and is then deflected by blades 14, which may be adjustable, so that it acts again on the vanes on the outlet side. The angle of the vanes 10 may be varied by arms 20 carried by a parallel chain 17, the position of which relative to the other chains is determined by a speed governor S. The shaft 1 drives a generator 16. In the modification shown in Fig. 6, the vanes 33, 34 are reversed on passing round the sprockets by taking the vane-carrying chain 25 over an off-set pinion 31, and the auxiliary regulating chain 26 over an off-set pinion 32. Power may be taken from these pinions. In further modifications the same result is secured by taking the regulating chain round eccentrically arranged sprockets which may be adjustable. The apparatus may be mounted upon floats forming a pontoon.
Patent GB-503994-A (GB)
Title: Fountain pen
IPC: B43K5/06
Filed: 1938-03-17
Abstract: 503,994. Fountain pens. CITROEN, J. T., and CITROEN, A. March 17, 1938, No. 8303. [Class 146 (iii)] In a fountain pen of the kind in which a piston is surrounded by an elastic member which is stretched when the piston is depressed and by its own resilience returns the piston to normal position, the piston is formed as a hollow plunger, 8 and the air tube 5 extends to or into the plunger. The elastic member 9 may be in the form of a sleeve secured at one end by a plug 6 closing the barrel and at the other end to the lower edge of the plunger, or, as shown, may be in the form of a bag secured at its open end by the plug.' 6 and provided at its closed end with a projection 10 passing through a hole in the base of the plunger.
Patent GB-1077559-A (GB)
Title: Electrolyte bath composition for the electrolytic production of lusterless and of corrosion resistant surfaces on metals
IPC: C25F3/16
Filed: 1965-02-26
Abstract: An electrolyte, for electro-polishing metal, such as stainless steel, cast iron, aluminium metal or alloy, while imparting a corrosion-resistant lusterless surface thereon, comprises an aqueous solution containing sulphuric acid with or without phosphoric acid, and at least one of glycine, beta-alanine, gluconic acid and/or alkali metal salts thereof, with or without nicotinic acid, alkali metal nicotinate and/or nicotinamide. Ethylene glycol may be included in the solution. The metal to be polished constitutes the anode, the cathode being insoluble in the electrolyte; e.g. a lead or carbon cathode may be used.
Patent GB-784721-A (GB)
Title: Improvements relating to door bells
Inventor: WILSON FRANK
IPC: G10K1/07
Filed: 1955-03-23
Abstract: 784,721. Door bells. EVERED & CO., Ltd. June 25, 1956 [March 23, 1955], No. 8387/55. Class 13. In a clockwork door bell the unwinding of the mainspring 9 causes a pivoted arm 18, spring-urged against the mainspring, to rotate anticlockwise about the pivot 10, thus in turn rotating the indicator plate 17 in the same direction so that the words "RE-WIND" thereon become visible.
Patent GB-1081430-A (GB)
Title: Device for drawing a crystal from a melt of a compound comprising at least one volatile component
Inventor: DEML FRANTISEK
IPC: C30B15/30
Filed: 1966-02-25
Abstract: 1,081,430. Crystal-pulling. TESLA, NARODNI PODNIK. Feb. 25, 1966 [March 3, 1965], No. 8409/66. Heading B1S. A crystal is pulled from a melt in a quartz tube 1 sealed by a graphite cap 2 having a central aperture through which passes a pulling rod 3 carrying a seed 12. The lower end of tube 1 is surrounded by a graphite crucible 5, and tube 1 and crucible 5 are contained in a vessel 9 having an inert atmosphere. The vessel 9 is surrounded at its upper part by a resistance heater 4 and at its lower part by an induction heater 6. Rod 3 is capable of rotary movement. The crystal may be of the arsenide or phosphide of gallium or indium.
Patent GB-726450-A (GB)
Title: Improved internal combustion engine
IPC: F02M69/00
Filed: 1953-03-27
Abstract: 726,450. Cylinders. GENERAL MOTORS CORPORATION. March 27, 1953 [April 16, 1952], No. 8485/53. Class 7 (2). The gap 19 of a sparking plug is located substantially at the centre of a substantially hemispherical and symmetrically located piston top depression 33, overhead inlet and exhaust valves 14, 16 respectively being disposed between the plug 13 and the outer edge of the piston and having annular clearance spaces 138 around their seats deeper than the rest of an annular and otherwise uniformly deep clearance space 36 around the depression 33. The plug 13 may be set back in a recess 238 or may be in a cylinder head undersurface flat apart from the clearances 138. The engine bore may exceed its stroke in the ratio of 16 to 9.
Patent GB-1172434-A (GB)
Title: Web Feeding Mechanism
Inventor: MORGAN JOHN HENRY
IPC: B41J11/30
Filed: 1967-02-22
Abstract: 1,172,434. Typewriters. BATEMAN, MORGAN, BYRNE STATIONERY MACHINES Ltd. 22 Feb., 1968 [22 Feb., 1967], No. 8559/67. Heading B6F. A pin-tractor feed mechanism comprises an endless chain 1 attached to which are a series of blocks 5 forming a pin carrier which follows a straight path in a plane adjacent and parallel to a web being fed, and means, which while the pin carrier is being driven, displace the pins 9 relative to the carrier in an axial direction so that the pins enter the web perforations in a direction normal thereto. As described, the means to displace the pins comprises a pair of plates 11, 11<SP>1</SP> grooved to receive enlarged heads 9<SP>1</SP> of the pins.
Patent GB-812075-A (GB)
Title: Improvements in skips or buckets for cranes and the like
Inventor: FIRTH RICHARD PETER
IPC: B65D90/58
Filed: 1956-03-20
Abstract: 812,075. Skips with bottom discharge. FIRTH BROS. Ltd. March 20, 1957 [March 20, 1956], No. 8665/56. Class 78 (4). The movement of the bottom discharge gate 19 (Fig. 1) of a skip carried by arms 14 from pivots 16 on opposite sides of the skip is limited by the engagement of strengthening bars 21 on the arms 14 with apertures 22 in an outer shell 10. In the construction illustrated the gate 19 closes a shaped aperture 13 in the bottom of a conical inner shell 11 (Fig. 2) mounted within the outer shell 10 which is cylindrical. Operating handles 23 (Fig. 1) are carried by the strengthening bars 21. A portion 20 of the shell 10 is cut away to permit a greater movement of the gate 19. Catches may hold the gate 19 in its closed or open positions.
Patent GB-415967-A (GB)
Title: Improvements in and relating to means for doffing cops and donning cop tubes in cop winding machines
IPC: B65H54/14
Filed: 1933-09-22
Abstract: 415,967. Doffing cops and applying tubes in cop-winding machines. REINERS, W., 48, Rheydterstrasse, Gladbach, Munich, Germany. Sept. 22, 1933, No. 8749/34. Convention date, Dec. 23, 1932. Divided out of 411,340. [Class 120 (ii).] In cop-winding machines a doffing-member 44 is operated by a shaft 17 actuating racks 16 to remove fully wound cops, and empty cop tubes, placed in holders 5, 6 when in the position shown in full lines, are pushed on to the spindles by operating a shaft 14 actuating racks 9 carrying a shaft 40 on which the holders are so pivoted and counterbalanced that, while normally occupying the position shown in dotted lines, they may be swung into the position shown in full lines to permit doffing of the cops and to facilitate re-charging. Specification 385,867 is referred to.
Patent GB-420477-A (GB)
Title: Improvements in or relating to electrical membrane sound emitters
IPC: B66C13/56
Filed: 1934-03-20
Abstract: 420,477. Audible - signalling apparatus. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN, 30, Croeselaan, Utrecht, Holland. March 20, 1934, No. 8768. Convention date, June 15, 1933. [Class 118 (ii)] The electrical machine feeding a sound emitter having a tuned membrane changes its speed periodically to give a varying note. If the emitter has a frequency-response curve of the type shown in Fig. 1, the frequency is varied between B and C. Two emitters having response curves BAC, B<1>A<1>C<1> respectively (Fig. 3) can be worked from the same machine, the apparatus cutting over from one emitter to the other between frequencies C and B<1>. A suitable feed to the machine is indicated in Fig. 4. With the brush 8 in the position shown the feed includes resistances 4 and 6 and the frequency corresponds to B. As the brush moves to segment 5, resistance 4 is cut out and the frequency rises to A, and when the brush reaches segment 7 resistance 6 is cut out to allow the frequency to rise to C. The brush then moves to the lower segment 5 to bring in resistance 6, reducing the frequency, and the cycle is repeated.
Patent GB-145896-A (GB)
Title: Improvements in apparatus for supplying oxygen or other respirable gases for breathing purposes in aircraft
IPC: B64D13/08
Filed: 1919-04-08
Abstract: 145,896. Stewart, C. J. April 8, 1919. Ventilating aircraft; air, conditioning.-Comprises means for maintainin the atmosphere in compartments in aircraft in such condition as to compensate for the varying quantities, of oxygen in the external atmosphere at different altitudes. In general the method consists in introducing regulated quantities of oxygen into a pipe which collects air by the motion of the machine and delivering the enriched mixture into the more or less closed compartment about the level of the heads of the passengers. To flush out the compartment periodically, a valve is opened automatically at predetermined intervals to permit a flow of atmospheric air through the head space of the compartment. Figs. 1 and 4 show one arrangement, in which oxygen is fed from a liquid reservoir or gas cylinder 1 through a valve 2 that is set from time to time by hand approximately in relation to the height of flight. The gas then either passes direct to the pipe 7 through an indicator, or, as shown, through a second automatic valve 4 controlled by a battery of aneroid boxes 5. The pipe 7 collects a regulatable supply of air by means of the trumpet 8 and valve 9 and delivers to the compartment. The means for flushing the compartment comprises a ventilating box 22, Fig. 6, at the front of the machine which communicates periodically with the trumpet 12 that collects air by the motion of the machine. A rotary disk valve 13 normally closes this passage, but is perforated to allow air to pass once during each revolution. The disk valve is operated through double worm gearing 14, 18, Fig. 7, from a wind propeller 17.
Patent GB-566394-A (GB)
Title: Improvements in or relating to water softening
IPC: C02F5/02
Filed: 1943-06-02
Abstract: 566,394. Softening water. MANNING. G. H. and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 2. 1943. No. 8832. [Class 46] For softening and clarifying water in which the hardness arises mainly from calcium compounds, one or more of the materials, lime, sodium carbonate, caustic soda, are added and a reagent consisting only of sodium aluminate with a small proportion of soluble starch or dextrin and, if desired, water, is dispersed throughout the water. The ratio of the sodium aluminate to the starch or dextrin is preferably between 6/1 and 10/1. The reagent may be prepared by heating a moist mixture of sodium aluminate and starch at 120-180‹ C. and grinding the resulting friable solid. Specifications 451,929, [Group XVIII], 525,581 and U.S.A. Specification 1,680,506 are referred to.