baber/WOPTO huggingface dataset:
Patent GB-511477-A (GB)
Title: Improvements in and relating to electric welding machines
IPC: B23K11/31
Filed: 1939-01-17
Abstract: 511,477. Welding. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 17, 1939, No. 1650. Convention date, Jan 17, 1938. [Class 83 (iv)] In an electric spot or lap welding-machine of the kind in which the movable electrode is moved by a rigid member which is connected to a flexible member so that the rigid member is first moved alone to apply the electrode to the work whereupon the. connection between the rigid member and the flexible member causes the latter to apply the welding pressure automatically, the pressure is transmitted from the flexible member to the electrode through a bell crank lever and articulated levers, which latter are operated by a rigid rod driven by a crank so as first to apply the electrode to the work and then to rock the bell crank to transmit pressure from the flexible member to the electrode. The fixed electrode 4 is connected by an arm 2 to the casing 1 and the movable electrode-5 to a slide 6 carried by the arm 3. The slide'6 6 is connected to a toggle 8 connected near the snapjoint 13 to a rigid rod 14 reciprocated by a crank 15. The toggle is connected by a crank lever 9 and bar 10 to one end of a spring 11, the other end of which is fixed to the arm 3, the initial tension of the spring being adjusted by a load wheel 12. When the crank 15 is put in position by pressure on a foot switch 22, the electrode 5 is first moved into contact with the work by the rod 14, whereupon when further downward motion thereof is resisted the rod 14 through lever 9 and bar 10 increases the tension of the spring 11 which applies the welding pressure. To the bar 10 is connected a pivoted arm 17 which carries a rod 19 connected at its other end to a similar arm and carrying a stop, which releases the contact 20 so as to allow the welding switch 21 to close when the desired pressure is reached. In order to enable the rod 14 to be adjusted when the overhang of the arms 2, 3 is varied, the crank 15 operates on a sleeve 16 in which the rod 14 is adjustable. The drive is effected through a clutch which is automatically disconnected after half a revolution or after one or more complete revolutions.
Patent GB-1474138-A (GB)
Title: Internal combustion engine with main and auxiliary combustion chambers
IPC: F02B19/02
Filed: 1975-01-15
Abstract: 1474138 IC engines with main and auxiliary combustion chambers GENERAL MOTORS CORP 15 Jan 1975 [17 Jan 1974] 1703/75 Heading F1B In an I.C. engine comprising a plurality of cylinders a carburetter with individually throttled throats 39, 40 is mounted on an intake manifold 31 and supplies air-fuel mixtures to a combustion chamber 35 and an ignition chamber 54 via a main intake passage 36, and an auxiliary intake passage 64, 66, 67, 68, which is in heat exchange relation with exhaust passages 50 in exhaust manifolds 28, 30. The flow of mixture to the combustion and ignition chambers 35, 54 is controlled by valves 70, 77 and exhaust from the combustion chamber 35 is controlled by valve 71. A transfer passage 52 is provided in the intake manifold through which exhaust gases flow from exhaust port 47 to heat air fuel mixtures flowing to the combustion chamber 34 via plenum 46 and to the ignition chamber 54 via passage 64, 66, 67, 68. The valve 77 is actuated by tappet 81 mounted on a spring seat member 74 for the main inlet valve 70, so that the two valves are actuated simultaneously by rocker arm 76. An S-shaped sheet metal guide-member 86 mounted on spring seat member 74 has a bifurcated portion 88 which straddles the valve 77 to prevent rotation of the spring seat 74, so maintaining the tappets 81 in position engaging the ends of the valves 77.
Patent GB-469038-A (GB)
Title: Improvements in caravans
IPC: B60P3/34
Filed: 1936-01-21
Abstract: 469,038. Caravans; folding vehicles. WOOD, B. G. Jan. 21, 1936, No. 1714. [Class 108 (i)] A caravan is arranged to have a side extension comprising a side hinged panel adapted to form the roof or the floor of the extension which is formed as a tent with fabric walls, hinged supports and tent ropes. In the form shown in Figs. 1 and 2, the vehicle A is provided with a hinged panel C which may be opened either as a roof E or as a floor of a tent-like extension B. The extension B is provided with a roof E, floor, uprights K, supports 0 and fabric walls which are adapted to be collapsed for stowing away when not in use. Guy ropes P serve to strengthen the extension and a ventilator G is provided while the interior is fitted with beds, tables, doors, &c. In the form shown in Fig. 6, the roof D of the vehicle is adapted to be raised and supported by triangular window frames F or other means, while if desired the floor of the extension may be dispensed with, the fabric walls of the extension prolonged to reach the ground.
Patent GB-547065-A (GB)
Title: Earth boring apparatus of the core drilling type
IPC: E21B25/08
Filed: 1941-02-10
Abstract: 547,065. Borehole apparatus. STANDARD OIL DEVELOPMENT CO. Feb. 10, 1941. No. 1764. Convention date, Feb. 10, 1940. [Class 85] In a core-boring apparatus in which the core is received in a pressure chamber capable of being sealed in a fluid tight manner, a fluid tight expansible member is provided in connection with the chamber whereby the pressure differential is reduced as the core is raised to the surface. In Fig. 1, the drill stem 5 encloses a cylinder 35 connected to a block 36 provided with fluid passages 38, 39, a depending knife edge 53, guide fins 64 and a longitudinal passage 40 controlled by a needle valve 41 and leading to a lateral passage 42 normally closed by a plug 43. Inside cylinder 35, the core barrel depends from a collar 51 carried by a rod 25 passing slidably through block 36 and connected by coupling 24 to a rod 20, the coupling 24 having limited longitudinal movement relative to a sleeve 44 with fins 47 forming a seat for the bevelled edge of a cylinder 7 connected by linkage to the rod 20. An expansible rubber sleeve 101 is held by clamps 102 around an apertured part of cylinder 35. In use, when the core barrel strikes the bottom of the hole, rods 25, 20 are forced upwardly and rod 20 is locked to cylinder 7; the core is then cut, displaced fluid passing through passages 38, 39. Cylinder 7 and rod 20 are then raised to move the core barrel within cylinder 35 to allow a valve to close the lower end of the latter, and resilient material 52 on the collar 51 contacts the knife edge 53 to close the upper end. The core barrel is then raised to the surface, during which movement, the pressure differential is reduced by expansion of the rubber sleeve 101. The plug 43 may then be removed and collecting means connected to passage 42 to receive volatile matter from the core barrel on opening valve 41. In Fig. 2, the rubber sleeve 101 is replaced by a bellows 105 connected by passage 104 with the interior.of cylinder 35; in other forms, the bellows is replaced by a rubber balloon or by a telescoping member.
Patent GB-1517645-A (GB)
Title: Method of removing sulphur dioxide from flue gases
IPC: C05C9/00
Filed: 1976-01-16
Abstract: 1517645 SO 2  removal AMERICAN ELECTRONIC LABORATORIES Inc 16 Jan 1976 [31 Jan 1975] 01780/76 Heading C1A Sulphur dioxide is removed from flue gas by contacting with an aqueous mixture of ferric sulphate in a flue gas scrubber whereby the ferric sulphate reacts with the SO 2  and is reduced to the ferrous salt, whilst the SO 2  is oxidized to SO 3  which is absorbed to form sulphuric acid; the ferric sulphate is initially present in an amount of from 1% by weight up to the saturation limit of the sulphate in the solution; the mixture is then treated with an SO 2 -free oxygen containing gas to reoxidize at least a portion of the ferrous salt to the ferric sulphate and the regenerated solution recycled thus causing a progressive build up in the sulphuric acid concentration until the mixture is removed from the system to be replaced by a fresh ferric sulphate containing mixture.
Patent GB-514469-A (GB)
Title: Improvements in or relating to frequency converters and circuits therefor
IPC: H03C1/58
Filed: 1938-01-19
Abstract: 514,469. Frequency-converting systems; impedance networks. STIELTJES, F. H. Jan. 19. 1938, No. 1795. [Classes 40 (iii) and 40 (v)] In a frequency-converting or frequencytransforming system comprising an input filter section I, a modulator S and an output filter section B the real parts of the impedances of the two filters are matched to one another in the working range while the reactive parts cancel one another, account being taken of the impedance-transforming effect of the modulator and of the fact that the working range of frequencies is different in the two filters. The invention is particularly applicable to a modulating system of the kind described in Specification 506,790 in which a voice or other frequency f, is applied to a modulator S through an initial filter I, and a modulating oscillation of frequency fo and large amplitude causes the phase of the input frequency to be repeatedly reversed at the modulating frequency fo. The output consequently contains a mixture of frequencies and these tend to produce, by retroaction through the converter S, a mixture of further frequencies superimposed on the signal frequency f1. In order that maximum efficiency may be secured, the impedance at 2, 21 must be low and that at 5, 51 high for the undesired frequencies, or vice versa; and these two impedances must be matched for the desired frequencies, in a sense in which account is taken of a voltage-transforming effect of the converter S, whereby each component of the frequency spectrum on the input side is related by an ascertainable transformation ratio to each component on the output side. In one embodiment of the invention, Fig. 8, the input filter is a low-pass constant-K section while the output filter is a band-pass constant-K network of which the midshunt terminal arm is shown at M. In order that the (real) image impedance at terminals 6, 6<1> may be more nearly uniform through the pass range, a shunt arm K, having an admittance equal to 0.3 times that of a full shunt arm, is added as shown, so that the resultant admittance is 0.8 of the full shunt admittance, but this has the effect of adding a reactive component to the image impedance in the pass range. In known filters, a reactive series arm is added, Fig. 6 (not shown), for the purpose of neutralizing this reactive component, but according to the invention the series arm is added on the input side and its value is transformed in accordance with the transformation ratio whereby the desired input frequency is related to the desired (and transposed) output frequency.
Patent GB-984357-A (GB)
Title: Process for the preparation of polyfunctional diazonium halides
Filed: 1962-01-18
Abstract: A process for the preparation of a poly-functional diazonium halide (i.e. containing more than one diazonium group) free from metal salts comprises condensing a substituted or unsubstituted diphenylamine-4-diazonium salt e.g. a halide (chloride or bromide) or sulphate a with formaldehyde in strong sulphuric acid, converting sulphate ions in the reaction mixture into feebly soluble metal sulphates, with or without previous removal of sulphuric acid from the reaction mixture by solution in a solvent, addition of halogen ions, separating precipitated sulphates and recovering the polyfunctional diazonium halide.  In an example diphenylamine-4-diazonium sulphate is reacted with sulphuric acid and paraformaldehyde and subsequently treated with barium bromide until precipitation of barium sulphate ceases. This is separated and the solution evaporated to give the acid bromide condensate of 4-diazodiphenylamine-formaldehyde. In other examples 3 - methoxy - diphenylamine - 4 - diazonium chloride, 4 - methyl - diphenylamine-41-diazonium sulphate and 4-methoxy-diphenylamine - 41 - diazonium sulphate respectively are treated with sulphuric acid and paraformaldehyde. Specification 418,011 is referred to.
Patent GB-103847-A (GB)
Title: Improvements in or relating to Carburetters for Internal-combustion Engines.
Inventor: HUTCHINSON EDWIN
IPC: F02M7/24
Filed: 1916-02-08
Abstract: 103,847. Hutchinson, E. Feb. 8, 1916. Spray carburettors.-In carburettors in which fuel is fed through a submerged nozzle into a chamber in which it may accumulate, and which chamber communicates both with the atmosphere and with a straight-through passage of the carburettor, the communication with the straightthrough passage is in line with a manuallyactuated piston throttle valve which is moved across the passage. Fuel from the float chamber passes through a nozzle f into the chamber d, which is below the fuel-level, is open to the atmosphere through apertures i controlled by a valve h, and communicates with the passage a, b through openings j, k in line with the throttle valve c. The openings k diverge from the central opening j towards the mixture outlet and may be replaced by slots. Air through the conduit g passes over the nozzle f before reaching the openings j, k. Two valves may replace the valve c. According to the Provisional Specification, two or more chambers may be used in succession, the whole of the air may pass through the chambers, and the nozzle f may be pointed and project into the chamber d.
Patent GB-535001-A (GB)
Title: Improvements relating to grass or hay lifters
IPC: A01D87/02
Filed: 1940-01-30
Abstract: 535.001. Endless-belt conveyers. GOODALL. C. Jan. 30, 1940, No. 1860. [Class 78 (i)] [Also in Group I] A hay-loader with frame a, a<SP>1</SP>, a<SP>2</SP>, on wheels c has a blower k directing a blast of air through a nozzle m to raise the hay so that it is engaged by tines g on an endless chain or belt f which carry it up a trough i for discharge through a shoot into the cart which tows the loader. The nozzle is connected to the blower by a flexible or articulated duct n and can be adjusted by a chain o. The conveyer can be driven by a motor p which drives the blower, or by a chain q passing round a sprocket wheel r on the axle of the wheels. The upper run of the conveyer is tensioned by a wheel u mounted on an arm v pivoted on the frame a<SP>2</SP> and adjusted by means of a link w.
Patent GB-547212-A (GB)
Title: Improvements in or relating to signal pistols
IPC: F41C7/11
Filed: 1941-02-14
Abstract: 547,212. Signal pistols. JACKSON, D. R. P., and MOLINS MACHINE CO., Ltd. Feb. 14, 1941. No. 1906/42. Divided out of 547,190. [Classes 9 (ii) and 119] A signal pistol comprising a dropdown barrel 1 pivoted at 2 to a body 3 seen from the front has the body formed from two spaced plates 26 which embrace the trigger mechanisrr hammer and trigger guard 11 anc which clamp and secure in positior the pivots and other working parts of the pistol. Lugs are provided tc secure the breech block 4 to the plates, and the stock is completed by a moulded distance piece 28 betweer the plates and moulded grip plate: 29. Specification 547,190 is referre( to.
Patent GB-112184-A (GB)
Title: Improvements in or relating to Joints and Joint-boxes for Tubular-members of Military Bridges and the like.
Inventor: INGLIS CHARLES EDWARD
IPC: E01D15/133
Filed: 1917-02-07
Abstract: 112,184. Inglis, C. E. Feb. 7, 1917. Nuts.-The tubular members of military and other bridges described in Specification 22079/14, [Class 20 (i), Buildings and structures, Kinds &c. of], are connected to a junction box by providing them with an internal screw to receive a connecting tongue C, and an external screw to receive a tightening nut D. The tongue is secured to the junction box by a pin F engaging a semicircular recess in the box and is prevented from unscrewing from the tube by a set screw. The operative faces D<1>, E, of the nut and box may be conical or flat, and the nut is flanged and provided with open webs D<3> or lugs to receive a key G which is inserted under one web or lug and bears upon the next one. The ends of the tubes may be thickened before being screwed.
Patent GB-592195-A (GB)
Title: Paper sack
IPC: B65D30/22
Filed: 1945-01-24
Abstract: 592,195. Paper sacks. FRIXIONE, P. A. Jan. 24, 1945, No. 1922. [Class 94 (ii)] A strip of burlap 7 is attached, loosely, to the paper sack a, so that after the sack has been pierced by a sampler c, and c removed, the sack in the region of the hole is supported by the burlap. The top of the sack may be oblique, as in Fig. 6, with the filling valve 10 at the apex, so that the whole of the interior may be filled.
Patent GB-387111-A (GB)
Title: Improvements in or relating to velvet cutting machines
IPC: D06C13/08
Filed: 1932-01-21
Abstract: 387,111. Pile-cutting machines. RICHTER, R., (trading as RICHTER & SÍHNE, I.), Niedergrund, near Warnsdorf, Czecho-Slovakia. Jan. 21, 1932, No. 1927. Convention date, Jan. 21, 1931. [Class 42 (i).] The knife-holder 17 is pivoted to a lever 15 which is moved against the action of springs 23, 30 when the resistance to the knife increases or decreases to close circuits at 4, 13 or 4, 12 to stop the machine, the latch rod 21 at the same time being unhooked from the lever 15 by means of its cam surface 28 and a fixed abutment 27, thus allowing the spring 30 to pull the knife clear of the fabric 18.
Patent GB-1280771-A (GB)
Title: Improvements in or relating to container-carrying trucks
IPC: B60P1/48
Filed: 1970-01-15
Abstract: 1280771 Vehicles for tipping containers TRAY ENG Ltd 15 Jan 1970 [29 Aug 1969] 1935/70 Heading B8E A container 27, Fig. 3, which is picked up and transported by a vehicle 10, is supported in a cradle 17, Fig. 4, which is raised in a horizontal position by a ram 20, 21, and then, on further extension of the ram, is pivoted about lugs 26 on the container to tip out the contents. The cradle 17 is pivoted at 25 to a frame 14 which is itself pivoted to the vehicle at 38. As the ram 20, 21 is extended the frame 14 is pivoted upwards and the cradle 17 is raised horizontally by levers 23 which are pivoted to the frame 14 at 32, tied to the vehicle by struts 24 and carry rollers 33 which bear against the underside of the cradle 17. Hook members 28 engage projections 29 on the container to attach the latter to the cradle 17. Levers 23 are held in their raised position during tipping by hooks 34 on arms 35 which engage the rollers 33. Abutments 36 disengage the hooks 34 as the container is lowered after tipping. The vehicle may be of the type disclosed in Specification 769,795.
Patent GB-326605-A (GB)
Title: Improvements in or relating to gramophones
IPC: G10K13/00
Filed: 1929-04-02
Abstract: 326,605. Williams, A. C. April 2, 1929. Cases.-A sound chamber D, which is interposed between, and connected to, the tone-arm C and horn B of a gramophone, is fitted with a pair of internal partitions D, and the wall E adjacent the horn is provided with an aperture G controlled by a sliding shutter F having a pear-shaped aperture G*. The shutter is adapted to slide in guides H on either side of the wall E and is movable against the action of a spring M by a cord I passing over rollers J and connected to an operating lever K.
Patent GB-555413-A (GB)
Title: Improved appliance for cutting and trimming ditches
IPC: E02F5/02
Filed: 1942-02-14
Abstract: 555,413. Cutting and cleaning ditches. PRATT, F. H. Feb. 14, 1942, No. 2002. [Class 6 (i)] A machine for cutting and trimming ditches comprises a U-shaped blade 7 secured by its upper ends to an open rectangular frame 1 forming a skid adapted to be towed along the ground and having an upwardly-extending handle 10 at its rear end so that an operator can steer the tool and apply downward pressure thereon. When cutting new ditches, the cut material is excavated subsequently. The frame carries small lateral shares 16 and a central disccoulter 13 and is fitted with upturned shoes 12 at its front end. Specifications 178,282, [Class 6 (i)], and 436,367 are referred to.
Patent GB-1089589-A (GB)
Title: A device for controlling the position of loops of hot-rolled strips
Inventor: SIMEK JAROSLAV
IPC: B21B37/50
Filed: 1966-01-17
Abstract: 1,089,589. Rolling. VITKOVICKE ZELEZARNY KLEMENTA GOTTWALDA NARODNI PODNIK. Jan. 17, 1966, No. 2046/66. Heading B3M. The loops of hot rolled strips are controlled in a semi-continuous train by a lifting means placed between each stand, which means are hydraulically actuated and controlled by an air sensing element 13 placed between the first and second stand. Each lifting means comprises an hydraulic cylinder 1 connected to an arm 2, which is carried on a shaft 3, which also carries a lever 4, having a roller 5 mounted thereon. All of the cylinders are of the same size, and arms 2 decrease in length from the first to the last stand. The cylinders are supplied with pressurized fluid from distributers 8, controlled by servos 9 'actuated by elements 13, to pivot rollers 5 into engagement with the strip.
Patent GB-1208622-A (GB)
Title: Elevator-system controls
IPC: B66B1/22
Filed: 1968-01-15
Abstract: 1,208,622. Lift control systems. RELIANCE ELECTRIC & ENG. CO. 15 Jan., 1968 [20 Jan., 1967], No. 2066/68. Heading B8L. In a multicar lift system in which calls made at landings (hall calls) remain registered until cancelled by a serving car, the duration of registered call is measured and if it exceeds a predetermined limit it is termed a "taxi call" and a "taxi service" made of operation is established in which the first car to complete its normal service in the direction of the taxi call is assigned that call. It is then termed a "taxi car" and it ignores all further calls (even car calls) until it has served the taxi call. In the event of more than one taxi call they are each assigned in sequence. In Fig. 1 (not shown) the sequence is determined by their spacial relationship, since establishment of a taxi call starts a scanner which interrogates each floor in turn. When a taxi call is "found" the scanner is stopped until a car is assigned; it then moves on to locate the next taxi call. In Fig. 2 (not shown) the sequence is determined by the duration of each call, the oldest being allotted first, and so on. The duration of each call is represented by an analogue signal which is compared with a decreasing ramp signal and coincidence causes an allotment to be made. The ramp signal is halted when coincidence occurs; if two taxi calls have the same analogue signal these are allotted one after the other before the ramp is restarted to find the next oldest call. To prevent breakdown of the system at busy periods the timing device may be halted if any taxi call reaches a prescribed maximum duration, or if all cars have become taxi cars. Normally, the arrival of any car at a taxi call floor will reset the taxi call memory, but alternatively this may be reset only by the arrival of its assigned taxi car, which will be empty (or nearly so). "Queue service", as described in Specification 1,208,621, is suspended (if operative) while a taxi call is registered. The system uses logic elements and is preferably applied to that described in Specification 1,163,727, in which cars are allotted according to their ability to serve any particular call. The timers for the taxi calls (one for each floor) comprise binary counters which receive clock pulses at an adjustable rate. The scanner for the system of Fig. 1 scans one group of floors while ascending through its scan positions and another group during descending scans. Thus it can cope with twice as many floors as it has positions.