baber/WOPTO huggingface dataset:
Patent GB-1195453-A (GB)
Title: Improvements in or relating to Indexing Mechanisms
Inventor: LEE MICHAEL ADRIAN
IPC: F16H27/00
Filed: 1968-02-05
Abstract: 1,195,453. Screw-and-nut mechanism; controlling clutches. RESEARCH INSTRUMENTS Ltd. 28 Jan., 1969 [5 Feb., 1968], No. 5632/68. Headings F2L and F2Q. [Also in Division G1] An indexing mechanism for linearly moving a workpiece 122 in a series of steps comprises a shaft 36 coupled to a lead-screw 106 engaging an internally threaded barrel 110 secured to a support 112, and control means including sensing means which is adapted to sense references markings on a drum 44 driven from shaft 36 whereby the drum 44 is adapted to undergo intermittent single complete revolutions each corresponding to a predetermined linear movement of the workpiece. The drum 44 is mounted on a shaft 54 carried by a frame 42 pivotally mounted on shaft 36, a gear-wheel 70 being secured to shaft 54 and being driven from shaft 36 by gears 68, 72. The gear-wheel 70 may be replaced by another gear-wheel having a different number of teeth. The end of shaft 54 remote from gear-wheel 70 is coupled via a spline shaft 82 to a shaft 86 forming part of an electromagnetic brake 88. Shaft 36 is driven from an electric motor 10 through a gear-box 18, an electromagnetic clutch 30 and a spline shaft 38. The drum 44 contains slots 56, 58 which are adapted to pass between lamps 60, 62 and photo-cells 64, 66 connected to amplifiers 130, 132 controlling the brake 88 and clutch 30 respectively. An over-ride circuit 134 is connected to the amplifiers 130, 132. When the drum 44 is at rest, an enlarged portion 136 of slot 56 is aligned with lamp 60 and photo-cell 64 so that a brake solenoid 98 is energized and brake 88 engaged, the clutch 30 being in a disengaged condition. On the application of a start pulse S to the over-ride circuit 134, a cutoff pulse is applied to amplifier 130 thereby disengaging the brake 88 and a switch-on pulse is applied to amplifier 132 thereby engaging clutch 30 and causing rotation of shaft 36 and drum 44 for one revolution until slots 56, 58 cause the brake 88 to be applied and the clutch 30 to be disengaged. Due to lead-screw 106, the shaft 36 is caused to move axially and carries with it gears 68, 70, 72 and frame 42 which is supported at one side on a bearing plate 50 which may be horizontal or inclined. In a modification, the slots 56, 58 are replaced by magnetic marks and the lamps 60, 62 and photocells 64, 66 replaced by magnetic transducing heads. Alternatively, the reference marking could be carried by gear-wheel 70. Further modifications include the use of a chain band or friction drive, a cluster of gears, a plurality of pairs of reference slots in the drum, replacement of a drum of different inertia in accordance with a change of gear ratio, and the application of braking action to the shaft 36 instead of to the spindle 54.
Patent GB-1296322-A (GB)
IPC: C08K5/39
Filed: 1971-03-01
Abstract: 1296322 Curing elastomers PENNWALT CORP 1 March 1971 5696/71 Headings C3E and C3P [Also in Division C2] Elastomers are cured by incorporating thereon a compound of the formula wherein R 1  and R 3  are alkyl or aryl groups and R 2  and R 4  are alkyl groups or R 1  and R 2  and/or R 3  and R 4  form part of a ring, and x is from 2 to 6. Specified elastomers are natural rubber, styrene-butadiene rubbers, acrylonitrile-butadiene rubbers, polychloroprene and ethylenepropylene terpolymers.
Patent GB-885463-A (GB)
Title: Improvements in or relating to multivibrators
IPC: H03K3/08
Filed: 1958-02-21
Abstract: 885,463. Valve pulse generating circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 21, 1958 [Feb. 25, 1957], No. 5709/58. Class 40(6). A multivibrator is made less sensitive to changes in valve parameters by the use of at least one pentode, the screen circuit of which comprises a resistor and capacitor of suitable time constant so that the screen voltage rises appreciably when the valve is cut off and falls when conductive. In the freerunning multivibrator shown, the duration of the longest half cycle (when valve 20 is cut off) is determined by the discharge of capacitor C via resistor R. The screen voltage rises due to the discharge of capacitor 24 when valve 20 is cut off. This causes the cut off voltage to rise so that the discharge curve of capacitor C passes through the cut off voltage curve substantially at right angles. The pulse duration and frequency are hence less dependent on valve changes. A theoretical explanation is given. Capacitor 28 is used for decoupling. Fig. 5 (not shown) relates to a similar circuit comprising two pentodes, both having the screen voltage controlled by the charge and discharge of a capacitor between screen and earth.
Patent GB-542603-A (GB)
Title: Improvements in or relating to stereoscopes
IPC: G02B27/22
Filed: 1941-05-05
Abstract: 542,603. Stereoscopes. KODAK, Ltd. May 5, 1941, No. 5853. Convention date, June 12, 1940. [Class 97 (i)] A stereoscope comprises a member 6 carrying the slide 3, and a member 7 telescopically slidable therein carrying lens tubes 2 angularly adjustable to vary the inter-ocular distance. The member 6 has a plate 38 formed with windows housing frosted glass 40, and carries springs 42 pressing the slide- 3 against a front plate 11 having picture-framing apertures 15; the slide is inserted into position through a slot 41 to stress springs 48 pressing it against a shoulder 50, and finger recesses 51, 52 permit removal by pushing the slide from under the shoulder and grasping it when it has been raised by the springs 48. The member 7 has lugs 8 extending into grooves 9 in the member 6, and is slidable for focusing by means of a rotatable knob 20 secured to an externally threaded sleeve 22 engaging an integrally threaded sleeve 16 secured to the plate 11. The tubes 2 are formed with arcuate lugs 24, 25 engaged with arcuate recesses in the member 7 by arcuate springs 28, and have flared portions 30 engaging shoulders 31, 32 in the front of the member 7; this mounting permits angular movements of the tubes 2 about points in the pictures for inter-ocular adjustments, the tubes being formed with inter-engaging teeth above and below the sleeve 16 causing each to move equally and oppositely to the other when either is adjusted. A lamp house 4 may be secured, when desired, to the member 6 by screws 53 and contains a lamp 57, and a shield 56 reflecting the light to reflecting surfaces 58 and thence to the slide. The lamp holder may be carried by a handle removably secured to the lamp house, and the handle may have slots therein adjustably to receive rods extending from a stand by which the apparatus may be supported.
Patent GB-543671-A (GB)
Title: Bipolar electrolysers for the production of hydrogen and oxygen
IPC: C25B1/06
Filed: 1940-04-02
Abstract: 543,671. Bipolar electrolysers for producing hydrogen and oxygen. MASCHINENFABRIK OERLIKON. April 2, 1940, No. 5922. Convention date, Nov. 3, 1939. [Class 41] A bipolar electrolyser for producing hydrogen and oxygen consisting of a block of cells C has washing chambers 13 for each of the gases at the sides of the block and an equalizing chamber 9 open to the atmosphere in front of it. Each cell has separate outlet pipes 1 for the gases leading through insulating connections 2 to tubes passing into the liquid in the gas washers. The tubes have lateral holes preferably directed obliquely upwards and carry a partition 19 which allows electrolyte to pass downward without contact with the cooling coils 13. The gases pass away through coolers 4 and the electrolyte passes by connections 15 to the equalizing tank 9 from which it is returned to the electrolyser by a pump 10.
Patent GB-1488512-A (GB)
Title: Engine cooling system
IPC: F01P11/02
Filed: 1975-02-06
Abstract: 1488512 Cooling I.C. engines PERKINS ENGINES Ltd 6 Feb 1975 [9 Sept 1974] 6029/74 Heading F4U An engine cooling system comprises an expansion tank 28 provided with a filler pipe 32 having a filler cap 33 which, when closing the filler aperture, also closes the end of a vent tube 37 connected by a hose 30 to the highest coolant level on the engine 10. As shown, the filler cap comprises a twist-on metal cover 40 carrying a bung 41 of elastomeric material which is a close fit within the pipe 32 and which, in use, is compressed against a waist 45 in the pipe. The expansion tank is connected by a pipe 29 to the inlet 24 of the circulating pump 12 and is also connected by a vent pipe 31 to the highest point on the radiator side of the thermostat 16. The tank is also provided with a pressure vent pipe 34 closed by a pressure cap 35.
Patent GB-998137-A (GB)
Title: Improvements in and relating to fasteners
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B2/24
Filed: 1962-02-16
Abstract: 998,137. Spring clips; stud and socket fasteners. F. T. PRODUCTS Ltd. Feb. 14, 1963 [Feb. 16, 1962], No. 6153/62. Heading E2B. A resilient substantially channel shaped fastener formed from a single strip of material has a web 43 and two limbs 41, 42 the end of each limb remote from the web having a foot 45, 46 connected by a neck 44 of reduced width as compared with the limb and foot each foot having a leading end and each side of the foot forming an opening 47, 48, 49, 50 adjacent the neck, the prongs of each limb being bent in the same angular sense so as to extend outwardly on opposite sides of the neck. In the construction shown the fastener is used to secure a member 53 to a support 54 the support having two flanges 55 and 56 each of which has a slot 57, 58 respectively to receive the feet. In a modified construction however the fastener has its limbs passed through slots in a support and the feet are engaged by a slotted retainer which holds a member in contact with the support.
Patent GB-229503-A (GB)
Title: Improvements in and relating to the construction of cylinders and pistons of double acting motors
IPC: F02F7/00
Filed: 1924-03-11
Abstract: 229,503. Lugt, G. J. March 11, 1924. Cylinders, construction of.-In a double-acting engine, the cylinder barrel is formed in two parts 6, 10, of which part 10 adjacent the cross-head can be moved axially to permit access to the piston and the interior of the cylinder. In a vertical engine, the part 6 is formed integral with its cover, the latter being secured by studs 5 to a casing 1 forming the water jacket and carried by standards 2. The lower part 10 of the barrel fits in a casing 9 forming its water jacket, and bolted to the part 1. When disconnected, the lower part of the cylinder is supported by a sleeve 18 secured round the piston-rod and is lowered by turning the engine until feet 19 on the lower cylinder cover rest on a plate 16 covering the crank-chamber.
Patent GB-308440-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: G01R17/08
Filed: 1928-02-28
Abstract: 308,440. General Electric Co.. Ltd., and Smart, N. C. Feb. 28, 1928. Tell-tale apparatus.-In a system for indicating at a remote point the value of an electric or other quantity, a meter is maintained in a zeroposition by a force which balances the force acting on the meter due to the quantity under the control of a step-by-step switch the position of which is indicative of the quantity under measurement. A second switch at the remote point is operated synchronously with the control switch by impulses transmitted over line wires. As shown, a meter 1 controls a contact 4 which cooperates with contacts 5, 6 in such a manner that upon variation of the quantity under measurement relay 14 is operated to close the circuit of a self-interrupting stepping magnet 11 of a switch having wipers 8, 12 co-operating with banks of contacts 9, 13 respectively. The wiper 8 is associated with a potentiometer resistance 10, and stepping occurs until the force generated in a coil 3 on the shaft of the meter balances the primary force acting on the meter and thereby restores contact 4 to its zero position. As soon as wiper 12 is operated, relay 17 is energized to initiate the transmission of impulses to the remote station (not shown). Impulse transmission proceeds until the wiper of the switch SI engages the contact marked by the wiper 12 to short-circuit the relay 17. The signal transmission may be effected by direct-current impulses in the manner described in Specification 282,858, or by alternating current impulses as described in Specification 307,443 to operate a step-by-step switch which may carry a pointer or may control a potentiometer resistance connected to an indicating instrument. Any one of a plurality of meters may be selectively associated with the remote indicating apparatus.
Patent GB-1274632-A (GB)
Title: A projectile
IPC: F42B5/10
Filed: 1970-02-10
Abstract: 1,274,632. Rockets and accelerating units therefore. WERKZEUGMASCHINENFABRIK OERLIKON BUHRLE A.G. 10 Feb., 1970 [20 Feb., 1969], No. 6248/70. Heading F3A. A rocket and a separate accelerating unit therefore comprises a cylindrical casing 8 containing an axially movable piston 70; a charge 68 for accelerating the piston and thereby the rocket whose combustion chamber 12 bears against the piston; and means 50 for limiting the stroke of the piston in the casing. The rocket carries a flare 2 which is provided with a parachute, and includes a longitudinally split skirt 10. When the assembly is dropped into a mortar, ignition is initiated by a pin 82 and acceleration of the piston causes the rocket to separate from the casing 8 by shearing a weak retaining thread 49. As the rocket is accelerated by the piston it is spun by pins 51. Also, an inertia member 38 sets back against a plastically deformable member 40 to ignite a charge 43 which in turn ignites the rocket propellant charge 20. The pressure of the combustion gases from the propellant charge drives a striker 30 against the action of a plastically deformable member 25 so as to ignite a separation charge 78 for the flare. When the piston strikes the means 50 it lifts the spent casing 8 from the mortar. The gases from the charge 68 then escape slowly from the casing without noise and flash.
Patent GB-491789-A (GB)
Title: A lifting truck for removing batteries from electrically driven vehicles and replacing same
IPC: B62B3/06
Filed: 1937-03-03
Abstract: 491,789. Hand trucks. TUMTLTY, H. G. March 3, 1937, No. 6317. [Class 108 (i)] A lifting truck for transporting a battery from an electrically-driven vehicle to a changing device, and vice versa, more particularly a battery adapted to be supported on the vehicle by runners as described in Specification 491,788, [Group XXXII], comprises a platform 3 supported on a wheeled base 1 by means equipped with a combined handle and lifting lever which on being raised first raises and then lowers the platform, moving it slightly forward, and on being depressed first raises and then again lowers the platform, moving it slightly rearwards, the platform engaging the base when the handle is in its extreme positions. As shown the platform is supported by links 4 one pair of which is connected by links 5 to interconnected levers 6 forming the handle.
Patent GB-369364-A (GB)
Title: Improvements relating to the control of fluid operated apparatus
IPC: B23Q5/26
Filed: 1931-02-28
Abstract: 369,364. Hydraulic transmission of power. ARCHDALE & CO., Ltd., J. and JEWS BURY, J., Ledsam Street, Birming- ham. Feb. 28, 1931, No. 6347. [Class 69 (ii).] Means for co-ordinating the movements of hydraulically actuated pistons, applicable to metal cutting machines, comprises a regulating valve or valves controlled by the pistons, the arrangement being such that a predetermined relation between or equality of the speeds of the pistons may be obtained. In the form shown in Fig. 1, the pistons b are connected to racks k engaging a pinion carried by a member i. When the piston speeds depart from equality, the member i is moved to operate a valve g to throttle the exhaust from one cylinder c. When the pistons are to make their return strokes, pump connections at d, e are interchanged to reverse the flow, and valves f thereby hydraulically actuated, so that the valve g acts on the supply to the cylinders. When the piston speeds are to bear a predetermined relation to one another, the racks k each engage one of a pair of pinions j differing in diameter. In modifications, the valve g may be operated by differential gear mechanism, or by connection to a lever l, Fig. 2, having its ends connected to the pistons.
Patent GB-1034733-A (GB)
Title: A crankcase exhaust regulator for internal combustion engines
IPC: F01M13/02
Filed: 1963-01-09
Abstract: 1,034,733. Crankcase ventilating. JOHNSON PRODUCTS INC. Jan. 9, 1963 [Jan. 22, 1962, May 10, 1962], No. 6382/66. Divided out of 1,034,731. Heading F1B. Flow of crankcase vapours to an inlet manifold is controlled by a slide valve 250 actuated by a diaphragm 246 responsive to crankcase pressure in chamber 236 and atmospheric pressure in chamber 238. The valve 250 has a lateral port 274 co-operating with the outlet 232 to the manifold and is provided with an excess pressure relief valve 266. Grooves 231 distribute manifold suction around the valve to prevent it binding against one side.
Patent GB-512324-A (GB)
Title: Improvements in or relating to control means for regulating the carburation devices of internal combustion engines
IPC: F02M69/00
Filed: 1938-03-01
Abstract: 512,324. Fluid-pressure servomotors. SOC. ANON. SOLEX, March 1, 1938, No. 6400. Convention date, Sept 11, 1937. [Class 135] A relay device for regulating the carburation devices of internal-combustion engines, e.g., from a distance, comprises a diaphragm 1 separating chambers 2, 3, the former of which is connected by a pipe 20 to a source of pressure 13 controlled by a valve 15, and to a discharge pipe 21 controlled by another valve 14, these valves 14, 15 being controlled by capsules 24, 22 subjected respectively to atmospheric and induction-pipe pressures. The chambers 2, 3 are provided with calibrated outlets 7, 8 and the diaphragm is acted on at the lower side by a spring 10 and connected to the device to be controlled, such as a needle valve 5 controlling the supply of fuel. The capsules may be duplicated to ensure regulation taking place if one of the capsules should become damaged. In a modification wherein the pressure in the pipe 13 varies, a second diaphragm device is arranged between the capsule and the diaphragm 1, so that the pressure upon the latter is maintained proportional to the pressure to which the capsule is subjected; a hand adjustment of the capsule is also provided. The Specification as open to inspection under Sect. 91 also describes arrangements wherein the valves 14, 15 controlling the diaphragm 1 are actuated by hand. This subject-matter does not appear in the Specification as accepted.
Patent GB-1077111-A (GB)
Title: Currency counting machine
IPC: G06M7/06
Filed: 1965-02-15
Abstract: 1,077,111. Counting paper money. T. E. HAYES. Feb. 15, 1965 [Sept. 30, 1964], No. 6408/65. Heading G4D. A machine for counting paper money comprises a plurality of bill receiving compartments (8), Figs. 1 and 2 (not shown), separate bill feeding means (10), (11) and a piece counter (26) associated with each compartment, a totalizing counter (32) common to all compartments, a piece counter circuit, Fig. 7 (not shown) for each compartment closable by separation of the bill feeding means and a totalizer counter circuit closable by operation of any of the piece counters, means to stop the bill feeding means (10), (11) upon the occurrence of any one or more of three conditions: (A) insertion of plural bills simultaneously into the bill feeding means, (B) any piece-counter reaching a predetermined count, (C) the totalizer-counter reaching a predetermined count; separate means to restart the means to drive the bill feeding means (10), (11) after stopping upon the occurrence of any of the three conditions, and means interlocking the separate restarting means to require operation of the restarting means in a predetermined order upon the simultaneous occurrence of more than one of the three conditions. As illustrated in Fig. 7, a plural bill circuit includes a relay coil (129) which when energized by the closing of micro-switch (27), Figs. 3 and 7 (not shown), causes contacts (80), (81) in the motor circuit to open and contacts (80), (87) in the brake circuit to close. A circuit is also established to a light signal (134) to indicate the presence of a double or plural bill. Similarly, a compartment predetermined count circuit and a totalizer predetermined count circuit have relay contacts in the motor circuit operable to stop the motor and light respective signals (40), (94). In the event of two or three of said conditions occurring simultaneously, signal (134) will light and have to be corrected before either signals (94) or (40) are allowed to light. Similarly signal (40) will light and have to be corrected before signal (94) lights thus assuring of a predetermined order for restarting. Within each compartment (8) there is a pair of hinged shelves (29) which may be opened to dump the contents of the compartments into lower sections of the compartments. A separator, Fig. 6 (not shown) may be used to separate stacks of bills and in the embodiment is used to operate switch button (39).
Patent GB-338826-A (GB)
Title: Improvements relating to apparatus for operating railway points or switches
IPC: B61L5/06
Filed: 1930-02-27
Abstract: 338,826. General Railway Signal Co., (Assignees of Howe, W. K.). April 10, 1929, [Convention date]. Electric operation; ground levers; controlling signals.- In a selector mechanism for coupling either a hand-lever or an electric motor to the points-rod, the clutch is moved into positive engagement with the driven member if in register, or is biassed into position if not in register. The motor M drives a recoil-spring member RM and a train of gears connected to a clutch member B, while the hand-lever drives a member A through another train. Members A or Bare coupled by sliding member C to a shaft 14 carrying a pin-drive 21 which actuates the throwbar TR, contact selector OS and lock-bar LB, as described in Specification 169,795. Member C engages member A with lost motion and is moved by a lever 27, actuated by an eccentric 25 on the selector shaft and pivoted to a yoke 30 carried by springs 36, 37 on a rod 32 in the base 33. If the parts are out of register, the pivot of the lever 27 moves until manual operation brings the members into line, when the springs 36, 37 force the member C into engagement. The lost motion between A and C or the gearing to the hand-lever may be so arranged that the hand-lever, after unlocking the points and throwing them, either re-locks them or leaves them unlocked. The selector shaft may also operate a lever 41 pivoted to the base 33 and carrying contacts 39, 40 controlling the circuit of the motor M and for setting to danger the signals of the roads connected up by the points.
Patent GB-1163395-A (GB)
Title: Carboxylated Polymers
Inventor: DICKAKIAN GHAZI MOURAD
IPC: C08F279/02
Filed: 1968-02-09
Abstract: 1,163,395. Reacting polymers with carboxylic acids. ESSO RESEARCH & ENG. CO. 9 Feb., 1968, No. 6577/68. Heading C3P. A hydrocarbon polymer containing ethylenic unsaturation is reacted with acetic, propionic, isobutyric, malonic, or methane tricarboxylic acid or with acetic or propionic anhydride in the presence of a free radical initiator. The preferred polymer is polybutadiene. The products may be neutralized with ammonia or amines.