baber/WOPTO huggingface dataset:
Patent GB-461509-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C14/26
Filed: 1935-08-17
Abstract: 461,509. Rotary pumps. JOHNSON. J. P. Aug. 17, 1935, No. 23194. Convention date, March 12. [Class 110 (ii)] A rotary pump of the type shown is designed to supply fuel to a carburetter at a constant pressure despite variation in pressure at the inlet port 14 where fuel enters the pump. The rotor 21 has sliding vanes 24 which bear at their inner ends on a loose roller 26, and at the tips on a liner 17 which extends between two end plates 16, 20, and is secured by a pin 143 against turning. A byepass valve 52 is placed between passages 48, 50, communicating respectively with the suction and delivery sides of the pump, to allow surplus fuel to be returned to the inlet side. The valve has an extension 53 in a cylinder acting as a dashpot. A spring 55 bears on a sleeve end 57 resting on the valve 52, and the spring pressure may be adjusted by means of a nut 65, and secured by a lock-nut 61. The preferred delivery pressure of the pump is 3¢ lbs. per square inch. A bellows 67 is mounted at the lower end on the sleeve 57 and at the upper end to a cover plate 58. The lower outer end is subjected to the pressure of the suction side of the pump, and its area is equal to that of the valve seat 47. The inside of the bellows is open to the atmosphere through a hole 68. In the event of the bellows breaking, an auxiliary hand pump may be operated to supply fuel to the upper side of a partition 46, and delivered past spring-pressed ball valves 70. The control mechanism is mounted in a housing 43 which may be removed and reversed from the position shown, if the pump is to be operated in the opposite direction. The pump is driven through members 34, 37 which are pressed apart by a spring 38. The adjacent ends of the parts 34, 37, have interengaging driving formations. The housing 11 is preferably made of aluminium and the rotor 21 and liner 17 of hard steel.
Patent GB-1513244-A (GB)
Title: Vehicle brakes
IPC: F16D65/14
Filed: 1974-05-24
Abstract: 1513244 Brake actuators GIRLING LTD 15 May 1975 [24 May 1974] 23223/74 Heading F2E In a wedge-type brake activator the travel of the cage and roller assembly 8, 9 in the direction of movement of the wedge 7 is limited by engagement of the assembly with one of the tappets 3, 4. This prevents the rollers from escaping from between the tappets in transit. As shown, the cage has an enlarged head 11 which cannot enter the groove 14 in tappet 3 which receives one of the rollers 9. The tappets have stops 17. Incorrect assembly of the cage is prevented by providing it with tags 20 which also cannot enter groove 14. The travel of the cage/roller assembly may alternatively be limited by extending the spindles of one roller and providing them with a suitable abutment on the corresponding tappet. The wedge may be pushed or pulled to actuate the brake.
Patent GB-802454-A (GB)
Title: Improvements in or relating to a fluid-controlled gaging device
IPC: G01B13/10
Filed: 1956-07-27
Abstract: 802,454. Pneumatic gauges. SHEFFIELD CORPORATION. July 27, 1956 [Aug. 10, 1955], No. 23261/56. Class 106 (2). [Also in Group XXIX] A gauge adapted for connection to a gauging head includes a first adjustment means 45 for controlling the zero setting of the gauge, a second adjustment means 46 for controlling the amplification of the gauge and affecting the zero setting and a single controllable device 47 connected to both said first and second adjustment means for simultaneous control thereof in a predetermined interrelationship. Air under pressure is supplied by tube 22 and passage 24 to a tapered flow tube 12 in which an indicating float 14 moves to different positions in accordance with the flow of fluid upward. From the upper end of tube 12, the air flows through a discharge passage 27, having a bleeding valve 36 to the atmosphere controlled by a tapered portion 45 of a screw 41. A tube 29 leads from passage 27 to the gauging head of the instrument. From tube 12, a by-pass passage 40, whose opening is controlled by a further portion 46 of the screw 41, leads directly to the outflow tube 29. In use, to alter the amplification of the instrument, valve portion 46 is adjusted, and to alter the zero position of the gauge, valve portion 45 is adjusted. If the gauge head orifices should wear with use, the float 14 rises in the tube and the amplification of the measurements decreases. A master checking device is then applied to the gauge head and by adjusting the orifices 40 and 36 by use of screw 41, the amplification is increased and the float brought to a lower position in the tube 12. To obtain the correct interrelationship between these adjustments, the two portions of screw 41 are relatively adjustable as shown in Fig. 3; a grub-screw 50, locking the parts in their adjusted position. Reference has been directed by the Comptroller to Specification 654,720.
Patent GB-615698-A (GB)
Title: Improvements in or relating to inhalers
IPC: A61M16/18
Filed: 1946-08-07
Abstract: 615,698. Inhalers. BERG, W. VAN DEN. Aug. 7, 1946. No. 23402. Convention date, July 27, 1940. [Class 81 (ii)] An inhaler comprises a reservoir 1 for receiving a liquid, e.g. solaesthin provided with a closure member, an air intake regulating device for more or less connecting the space above the liquid with the atmosphere, a mask or hood 11 connectible with the space, and a tube 15 which extends to the bottom of the reservoir and has its other end open to the atmosphere. The regulating device, which with the closure member may form a single unit, may have a raised central part 5, the upstanding rim 6 of which may be provided with one or more openings 7 coinciding with surrounding openings 16 in a rotatable ring 17. The closure may be provided with a coupling means 9 for attaching a hose 10 and a mask 11. The tube 15 is also mounted on the closure member so that the regulating device, tube 15, hose coupling and closure member may be removed as a whole. Valves, if desired, may be mounted on the inner side of rim 6, and a slidable member or valve may be used instead of the ring 17.
Patent GB-285749-A (GB)
Title: Improvements in propelling screws for sleighs or sledges
IPC: B62M27/00
Filed: 1927-09-06
Abstract: 285,749. Calligaris, O., and Wels, F. Aug. 19, 1927, [Convention date]. Sledges.-Motor sledges are driven by a screw the driving face of which is inclined as shown so that the thrust is in the direction shown by the arrow c which direction is preferably 45‹ to the ground. The diameter of the screw is preferably reduced to one or both ends and the screw may be lifted when the sledge is descending a gradient.
Patent GB-149992-A (GB)
Title: Improvements in or relating to ball bearings
IPC: F16C19/18
Filed: 1920-08-10
Abstract: 149,992. Beduneau, E. F. L. Aug. 11, 1919, [Convention date]. Ball bearings.-A ball bearing has two concentric spherical races and the balls are arranged in helical lines in a cage 2, so that each ball has its own rolling path on the two races. The parts are assembled by turning the inner ring 3 at right-angles to its normal position, the elasticity of the cage then allowing the assembled balls to be inserted.
Patent GB-442743-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H01J19/44
Filed: 1934-08-15
Abstract: 442,743. Discharge apparatus. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 15, 1934, No. 23596. Convention date, Aug. 15, 1933. [Class 39 (i)] An electric discharge device having a plurality of electrodes, such as a thermionic valve or photo-electric cell, is provided across the probable path or paths of leakage currents between electrode conductors with one or more guard conductors which consist of graphite or colloidal graphite paint and which are taken to another electrode conductor which is at not more than a small direct current potential difference from one of the electrode conductors between which leakage is to be reduced. In the thermionic valve shown in Fig. 2, leakage between the anode conductor 17 and the grid conductor 14 is reduced by lines 22, 23, 24 of graphite paint extending across the pinch and connected to the cathode conductor 151. An extension of the guard conductor connects the central cathode support 18 to the conductor 151, the high resistance of the graphite marking preventing short-circuiting of the filament. The Specification as open to inspection under Sect. 91 comprises the general use of guard conductors, which may be of metallic paint, and also describes a modification in which a guard ring is painted on the pinch surrounding the grid conductor, a separate lead to this ring being taken through the pinch for connection to a suitable point in the valve circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-631435-A (GB)
Title: Folding beds
IPC: A47C17/58
Filed: 1947-08-26
Abstract: 631,435. Cabinet bedsteads. BABER, H. DAVIS-, and STACEY, P. Aug. 26, 1947, No. 23611. [Class 52 (ii)] A bedstead, foldable into a cabinet 1, is mounted in relation to the door 3, hinged at 4 to the cabinet, by means of parallel links 6 which are pivoted to the door and are provided with rollers 8 co-operating with guides 9 carried by the bedstead. Guides 10 fixed to the door 3 co-operate with rollers 11 on the ends of the bedstead to prevent its longitudinal displacement, in relation to the door, while it is being spaced parallely from the door by means of the parallel links on opening and shutting the door. The links 6 are tied by a strut 7 and are connected to the cabinet 1 by rods 12 and slotted brackets. The bedstead frame comprises three articulated sections 13, 14, 15 adapted to be folded together and is supported in its bed position with the aid of struts 16, 17. A pivoted frame may replace the door for supporting the folding bedstead, in which case a door may be provided hinged at its side in the usual manner.
Patent GB-771097-A (GB)
Title: A non-refillable container
IPC: B65D49/06
Filed: 1955-08-17
Abstract: 771,097. Non-refillable containers. SILICANI, J. B. D. L. Aug. 17, 1955 [Aug. 17, 1954], No. 23673/55. Class 66. A non-refillable container, Fig. 2, has a neck stepped on the inside so as to progressively decrease the internal diameter from the rim downwards, the lowermost step forming a seat for a valve 8, there being a ball 9 on the valve 8, a head piece 7 fitting in a recess in an intermediate step whereby the headpiece 7 is spaced from the wall 12 of the container above the intermediate step, and an apertured plug 5 abutting the uppermost step and maintaining the head piece 7 in position. The valve 8 has outer axial channels 20 and the headpiece 7 has lower radial ports 23 staggered with respect to upper ports formed by projections 21. When the container is inverted, Fig. 3, the valve 8 and ball 9 drop as shown and the contents are free to flow from the container. The head piece 7 has a recess 24 such that when the container is horizontal, Fig. 4, the ball 9 is caused to wedge the valve 8 into a closed position. The plug 5 may be fixed in position by an adhesive or, if an intermediate resilient washer 25 is used the plug is held in position by a metal sleeve 26.
Patent GB-675517-A (GB)
Title: Improvements in or relating to jointing compositions
Inventor: GREAVES CHARLES DESMOND
IPC: C04B26/26
Filed: 1949-09-14
Abstract: 675,517. Acid sludge adhesive. C. D. PATENTS, Ltd. Sept. 14, 1950 [Sept. 14, 1949], No. 23747/49. Class 22 Carbon is united to carbon or another material with a composition of sulphuric acid sludge from oil refining, an inert filler and an oxidizing agent. The composition is heated at 80‹C. Specified oxidizing agents are selenium dioxide and barium peroxide whilst carbon black is a preferred filler. Softening agents, e.g. naphtha and furfural may also be present, the furfural reacting with free acid of the sludge to give a resinous material converted by the heat treatment to elemental carbon.
Patent GB-158298-A (GB)
Title: Improvements in permutation locks
IPC: E05B37/02
Filed: 1919-09-27
Abstract: 158,298. Berryman, J. Sept. 27, 1919. Locks, permutation; locks, attaching.-A permutation lock, specially applicable for securing a mctor-car steering-column, is provided with concentric setting-rings B, Fig. 6, formed with upper and lower slots K connected by a gate G through which, when all the parts are properly set, a projection E, Fig. 1, may pass to allow the bolt D to be withdrawn. The casing F, in which a recess H is formed, acts as an additional blocking-element. The dial-plates may be attached in a variety of positions by pins N, Fig. 5, engaging in holes P, Fig. 6. The casing may be unscrewed from its support after releasing an internal spring bolt by means of the arm E. Small click-springs may be provided to enable the lock to be set by sound.
Patent GB-1040285-A (GB)
Title: A rotary regenerator
IPC: F02C7/105
Filed: 1963-06-14
Abstract: 1,040,285. Thermal regenerators. CHYRYSLER CORPORATION. June 14, 1963 [June 22, 1962], No. 23788/63. Heading F4K. In a thermal regenerator generally similar to that described in Specification 811,434, the gas passages in the matrix are formed such that the hydraulic diameter of each gas passage is not KwT greater than 0À06 inch and log 10  --- lies KfD between 1 and 1À4, where Kw is the coefficient of thermal conductivity of the material forming the matrix, Kf is the coefficient of thermal conductivity of the gas flowing through the matrix, T is the thickness of the walls of the gas passages through the matrix and D is the hydraulic diameter of the said gas passages. In the form shown, the.rectangular gas passages through the matrix, which may be.constructed of ceramic, glass, or steel, are of cross-section 0À15 by 0-12 inch. Using a steel matrix the walls may be 0À0006 to 0À0015 inch thick.
Patent GB-922496-A (GB)
Title: Improvements relating to voltage regulating arrangement for shunt wound electric generators
IPC: H02J7/22
Filed: 1960-07-07
Abstract: 922,496. Automatic voltage control. E. UHER. July 7, 1960 [July 10, 1959], No. 23803/60. Class 38 (4). A vibratory-type voltage regulator for a shunt-wound generator 1 comprises a relay with a voltage winding 4 and an auxiliary winding 5 which are so wound or connected that one aids the other electromagnetically, a thermistor 13 whose resistance decreases exponentially on increase in temperature being connected in series with the winding 5 and the series arrangement being connected in parallel with a current winding 10, e.g. for a batterycharging switch. In operation, with small load currents the resistance of the thermistor 13, which is heated by a current coil 14, is relatively high and the regulating effect of the auxiliary winding 5 is negligible; with load current approaching the maximum permissible value, however, the resistance of the heated thermistor decreases rapidly thereby causing more current to flow in the winding 5 to effect a corresponding reduction of the generator voltage. The thermistor may be heated by the current coil 10 or may be influenced by ambient temperature. The voltage coil 4 may be common to the regulator and charging switch, as shown in Fig. 1, or both items may have separate voltage coils (Fig. 2, not shown).
Patent GB-533718-A (GB)
Title: Improvements in or relating to folding boxes of cardboard and the like
IPC: B65D5/46
Filed: 1939-08-18
Abstract: 533,718. Cardboard folding boxes. ROBINSON, E. Aug. 18, 1939, No. 23891. [Class 18] A cardboard box is formed by folding the blank shown, a carrying handle being constituted by folding the parts 14 about the lines 16, the top 13 being locked in position by tongues 28 and slots 30. Sides fold inwards. Specification 533,914 is referred to.
Patent GB-860421-A (GB)
Title: Portable breathing apparatus
IPC: A62B7/12
Filed: 1959-07-13
Abstract: 860,421. Respiratory apparatus. COORDINATIECENTRUM REDDINGSWEZEN. July 13, 1959 [July 26, 1958], No. 23926/59. Class 81 (2). Portable breathing- apparatus comprising a mask connected to a compressed air cylinder by first and second pressure-reducing devices is characterized in that between the two devices there is a branch-pipe enabling the mask to be connected to an external source of compressed air at a lower pressure than that of the cylinder. As shown, cylinders 1 and 2 containing compressed air at a pressure of, e.g., 200 kg./sq. cm., are connected to a pressurereducing device 3 by pipes 4 each having a stop-cock 5. The device 3 reduces the pressure to, e.g., 2.5 kg./ sq. cm., and the air passes through a chamber 6, a tube 7, and an intake valve 8, incorporating a second reducing device 10 which reduces pressure to atmospheric pressure, to a mask 9. Leading into the chamber 6 is a branch pipe 6 for connection to a pipe, e.g. a fixed pipe in a mine, supplying air at a pressure of approximately 4 kg./sq. cm. An automatic valve 12 is set to open at a pressure higher than the outlet pressure from the device 3 and lower than the pressure in the pipe 11, so that when the pipe 11 is connected to the source of compressed air, that air passes to the chamber 6 and prevents the entry of air from the device 3 whereas when the pipe 11 is disconnected, the valve 12 prevents the escape of compressed air from the device 3 through the pipe 11. A stop-cock 13 connected to the pipes 4 allows air from the cylinders 1, 2 to by-pass the devices 3 and 10 through a pipe 14 which is of small cross-section to reduce the air pressure. An audible warning- device (not shown) indicates when the pressure in the cylinders reaches 50 kg./sq. cm., after which a stop-cock 15 must be opened to permit the use of the remaining air.
Patent GB-323184-A (GB)
Title: Improvements in or relating to distant control plant utilising electric resonance relays
IPC: H02J13/00
Filed: 1928-08-20
Abstract: 323,184. Siemens - Schuckertwerke Akt.-Ges., and Callsen, A. Aug. 20, 1928. Selective distant control systems.-In distantcontrol systems for operating electric-clocks, multiple tariff meters, lighting systems, &c., at least two different operating frequencies are superimposed simultaneously on the power line and operate a relay possessing a corresponding number of electromagnetically excited mechanical oscillating systems. As shown in Figs. 1 and 2, electromagnets 9, 10 control two sets of tuned magnetic reeds 5, 6 and 7, 8 for moving over operating levers 3, 4 bearing on one or other of the switch blades 1, 2 in the controlled circuits. Each pair of reeds 5, 6 and 7, 8 corresponds to different frequencies, e.g. 300, 350 and 600, 700 cycles per second. The member 4 has a lateral pin 12 projecting between a pair of pins 11 on the member 3. Thus, if only one of the reeds 5 or 6 is set into vibration the corresponding lever 3 or 4 attempts to carry over the other lever but is unable to do so. If, however, both reeds vibrate simultaneously, neither impedes the motion of the other so that they are carried over the dead-centre to the dotted position shown in Fig. 1 in which they depress the other switch blade 2. The members 3, 4 can now be returned to their original position by the simultaneous vibration of reeds 7, 8. In a modification, Fig. 7, a single pivoted switch-operating lever 31 is employed carrying at its free end a transverse lever 33 with ends 34, 35 bearing on the reeds 5, 6. Oscillation of one reed only merely oscillates the lever 33 about its pivot, but simultaneous oscillation of both reeds moves the lever 33 bodily, swinging over the lever 31. In another modification, Fig. 3, one reed 5, 7 of each pair is normally latched by a bell-crank 13, 14 and is only freed to operate the arm 20 after it has been unlatched by vibration of the other reed 6 or 8. In a similar modification, Figs. 5 and 6, one reed 68 only may be employed to release the latching members in order that the contact carrying frame 22 may be thrown over by vibration of the other simultaneously vibrated reed 5 or 7.
Patent GB-277376-A (GB)
Title: Process for the production of shaped rubber objects
IPC: C08J5/02
Filed: 1927-09-12
Abstract: 277,376. K.D.P., Ltd., (Assignees of Hauser, E. A.). Sept. 10, 1926, [Convention date]. Moulding indiarubber.-Indiarubber &c. articles are made by spraying latex on to the surface of a mould, and simultaneously evaporating water therefrom by heating it. The latex may be natural or an artificial dispersion, and it may be mixed with fillers, colouring matters, stabilizing agents, &c. and be vulcanized, concentrated, &c. The mould may be heated, or exposed to hot air, or the latex may be sprayed by heated gas, for evaporating the water from the latex. The core may be covered by a number of films which may vary in character, and which are dried before the application of the next layer by having a movable mould, or spraying-pistol, or both, for example, a revolving core and a traversing nozzle. Fabric insertions and the like may be embodied during the formation of articles such as tyres. Fillers such as lamp-black, liable to cause premature coagulation, may be sprayed directly or as suspensions from a separate nozzle so that the spray mingles with that of the latex at or near the surface of the mould. The rubber is compacted, and blisters prevented by the use of auxiliary mould parts such as rollers, applied to the surface of the mould. Specifications 213,886, 214,583, 219,277, and 277,375, [all in Class 70, Indiarubber &c.], are referred to.
Patent GB-1158877-A (GB)
Title: Improvements in Digital Voltmeters
Inventor: QUERISHI UMAR
IPC: H03M1/00
Filed: 1967-05-23
Abstract: 1,158,877. Analog/digital converters. SOLARTRON ELECTRONIC GROUP Ltd. 1 May, 1968 [23 May, 1967], No. 23981/67. Heading G4H. A multi-range successive approximation digital voltmeter in which the input is first compared with a series of values of one order of magnitude to determine the most significant digit, successive digits being sequentially determined, ineludes an analog store 42 (Fig. 2), which accumulates the values selected from successive ranges to provide an input 16 to a comparator 12 for comparison with the analog voltage at input 10. In the embodiment of Fig. 2 giving a two digit output, a bi-stable 45 is set when the feedback comparison signal 16 exceeds the input signal to close a gate 44 feeding clock pulses to counter 20, these pulses also being fed via a pulse shaper 48 and resistor 50 to store 42. Switch 56 is momentarily changed over by a sequence controller 18 which also feeds a pulse on line 58 via inverter 54 for subtraction from store 42. The count in counter 20 (which commences its count at -9) is fed to a decoder 28 and displayed by a number tube 30. Switch 53 is then moved by sequence controller 18 which also sets bi-stable 45 and resets counter 20 to -1 so that further clock pulses are fed to the counter 20 and via resistor 52 to store 42 so that the lowest digit is determined and displayed on number tube 38. In a modification (Fig. 3, not shown), the clock pulses are fed to a diode pump (64) potential being fed first via a resistor (66) to the pump and after the most significant digit has been determined via resistor (68). The diode pump feeds increments of charge to the store (42). In the embodiment of Fig. 4 for three decades, the polarity of the input signal is first determined by comparing the input with the initially zero feedback voltage and a polarity lamp unit lit, an up/down gate 99 feeding either positive or negative pulses in accordance with the polarity to a reversible diode pump 85 and also pulsing a counter 104. A stop count gate 102 is enabled when the feedback exceeds the input, a subtraction pulse being fed to the pump when the comparator output changes polarity. For the hundreds range the charging potential of the pump is determined by a Zener diode 90, transistors 92, 94 controlling potential dividers in the pump for the lower two decades. A tapped potential divider 96 connected to the output of the analog store 82 enables a 10V., IV. or 0À1V. range to be selected.