baber/WOPTO huggingface dataset:
Patent GB-990880-A (GB)
Title: Improvements in or relating to shock-absorbing bearings
IPC: G04B31/02
Filed: 1962-07-03
Abstract: 990,880. Bearings. GOLAY-BUCHEL ET CIE. July 3, 1962 [July 5, 1961], No. 25449/62. Heading F2A. In a shock-absorbing bearing a sleeve 8 has, at one end, an inwardly-directed annular shoulder defining an aperture 7 and having seated thereon the base 3 of a socket member 1, pressed by a spring 9, conically-recessed to define a bearing cone 4 to receive a cone-shaped end 5 of a pivot spindle 6 through the aperture 7, and having a part-spherical outer surface 2 above the base 3 for rolling contact within the sleeve 8, the height of the member 1 and the depth of the bearing cone 4 being greater than the sphere radius, the angle subtended at the apex of the bearing cone 4 being greater than that subtended at the apex of the end 5 of the spindle 6. The member 1 may be a jewel, and the co-operating surfaces of the base 3 and of the shoulder may be plane or counterprofiled. The diameter of the aperture 7 is such that the spindle 6 will not shift laterally beyond a point at which the spherical portion 2 ceases to rotate in complete contact with the sleeve 8 in one plane.
Patent GB-322515-A (GB)
Title: Improvements in or relating to reciprocating tools
IPC: B25D17/06
Filed: 1928-09-05
Abstract: 322,515. Holman, J. L., and Holman, K. J. Sept. 5, 1928. Percussive drills. - The pistons of reciprocating tools, such as rock drills, pneumatic hammers, riveters, caulkers, &c. have an outer annular portion 13 which provides a part or the whole of the rubbing face, and is made, in whole or part, of lighter material than the body of the piston. The annulus may be threaded on to a flanged part of the piston 11, and a rifle-nut or other retaining member is threaded into the annulus. Various other methods of attaching the annulus and riflenut to the piston are described. The annulus may be made of fibre &c.
Patent GB-865457-A (GB)
Title: Pressure and temperature responsive pilot valve for refrigeration systems
IPC: G05D16/10
Filed: 1957-08-13
Abstract: 865,457. Fluid-pressure servomotor control systems; valves. HUBBELL CORPORATION. Aug. 13, 1957 [Aug. 23, 1956], No. 25570/57. Class 135. [Also in Group XIII] Part of refrigerating system, Fig. 1, comprises a tank 11 in which is fitted an evaporator 14, 15, 16 over which liquid, e.g. milk, to be cooled, is sprayed from header 21 and is subsequently discharged through outlet 24. Refrigerant is supplied via a solenoid-operated valve 26 to an accumulator 25 from which it passes through an oil separator 28 to the evaporator and is received back in the accumulator as a gas through pipe 34, and then flows from the accumulator through a suction line 35 containing a filter 78 and a backpressure regulating valve 36 to the inlet of a compressor. The opening of valve 36 is controlled by a pilot valve 80 according to pressure in the suction line anterior of the valve and according to the temperature at any desired point in the refrigeration system, e.g. the temperature of cooled liquid after passing over the evaporator detected by a thermal element 154. The pilot valve, Fig. 3, comprises an inlet 82 leading from the suction line 35 to the lower side of a diaphragm 94 which is urged by an adjustable spring 101 towards a seating 118 for controlling the flow of fluid through an outlet 83 to the actuator of the regulating valve 36, and a diaphragm 132 contained in a housing 127 screwed to the bottom of the valve housing 81 and having its lower face subjected to the pressure generated in the thermal element 154 and its upper face to the suction line pressure through bores 142 containing rods 140 for transmitting movement of the diaphragm 132 to the diaphragm 94, so that the suction pressure alone operates the valve until the thermally-generated pressure acting on the underside of the diaphragm 132 is sufficient to override the suction pressure acting on its upper side and also control the valve. Alternative lower diaphragm 132 may be fitted to alter the response of the valve.
Patent GB-867366-A (GB)
Title: Improvements in or relating to apparatus for displaying the chart position of movingcraft
Inventor: PARKER ERIC
IPC: G01S1/02
Filed: 1958-08-08
Abstract: 867,366. Air traffic supervision. DECCA RECORD CO. Ltd. Aug. 10, 1959 [Aug. 8, 1958], No. 25631/58. Class 118. [Also in Group XL (c)] A radar display on the screen of a projection type tube 14 is projected on to a viewing screen consisting of a transparent sheet 10 and a translucent sheet 11 so that markings corresponding to successive target positions and put on sheet 11 by a plotter may be viewed by observers looking in the direction A without the plotter being visible. The marking may be done with a wax pencil and made visible by illuminating sheet 11 by means of a lamp 12. Alternatively, fluorescent ink and a source of ultra-violet light may be employed, the ink being arranged to fade after a limited period. Any radar system providing signals representative of the co-ordinates of the positions of the moving targets may be employed to control the beam deflection of the tube 14. Preferably, however, the arrangement shown, in which an auto-follow system 20 responsive to the outputs from the receiver 19 and from a bearing data transmitter 21 supplies co-ordinate representative voltages to a switching device 27 which controls the beam deflection generators 22, 23 is employed. The transmitter comprises a micro-wave pulse source 16 coupled to the rotating scanning aerial 18 via a duplexer 17. Specifications 867,361 and 867,364 are referred to.
Patent GB-1194823-A (GB)
Title: Improvements in or relating to Injection Moulding Machines
Inventor: BENTLEY ERIC HERBERT
IPC: B29C45/03
Filed: 1966-06-09
Abstract: 1,194,823. Injection moulding footwear. C.I.C. ENG. Ltd. 6 June, 1967 [9 June, 1966], No. 25698/66. Heading B5A. A machine for injection moulding footwear or parts thereof comprises a plurality of mould components movable between open and closed positions, a fixed injection nozzle 41 positioned so that two of the mould components 20, 21 close thereon in the mould closed position, and passages 44 for the flow of cooling fluid formed in a platen 16 supporting a mould component 15. The invention may be applied to the moulding of soles and heels either as units or directly on to lasted uppers. The side mould components 20, 21 are mounted on carriers 7 pivoted at 9 and moved to and from closed position by rams 10, 11 operating through pivoted linkage 13. A last 6 is mounted on a loading platform 19 and when an upper has been positioned thereon, can be pushed into the machine between guides 23. The last can be elevated into its moulding position by means of a wedge 25 actuated by a double-acting ram 26 and co-operating with a cradle 46 having an inclined lower surface. A platform 24 pivoted at 45 is biased by a spring 27 into position to lock the last 6 into the cradle 46. The sole mould component 15 is moved up and down by double acting rams 17. The cooling passages 44 are connected to a refrigerating unit (5) in the base of the machine. Fig. 8 (not shown) shows an electro-pneumatic circuit for automatic timed operation of the machine. The rams 10, 11, 17, 26 are electrically controlled and pneumatically operated.
Patent GB-1368849-A (GB)
Title: Method and apparatus for detecting the presence of overlapped planar members
IPC: B65H7/12
Filed: 1972-06-02
Abstract: 1368849 Feeding sheets OPTICAL RECOGNITION SYSTEMS Inc 2 June 1972 [11 Jan 1972] 25767/72 Heading B8R A double sheet feed is detected by each sheet 31, 32, closing a vacuum part 23, 24, causing two pressure responsive switches 13, 14, to change state and provide an output signal which may serve to stop the machine. In order to avoid a false response to a wrinkled document, circuitry is provided which requires that both switches 13, 14, be opened simultaneously for a predetermined minimum period of time before an output indication is produced. The loops 21, 22, in the fluid circuits prevent paper dust reaching the switches.
Patent GB-257948-A (GB)
Abstract: 257,948. Brown, E. Sept. 3, 1925, [Convention date]. Cylinders, arrangement and shape of ports of, and pipes for; exhaust-silencers. - In a multicylinder two-stroke engine having terminal exhaust ports and a common exhaust pipe, an exhaust space around each cylinder is separated from the common exhaust pipe by a set of blades which deflect the gases in the direction of the axis of flow of the exhaust pipe. The arrangement may silence the exhaust, and is such that the ratio of pressures on the two sides of the blades never exceeds that corresponding to the critical speed of the gases through the blades. As shown, the exhaust ports 5 are distributed around the entire periphery of each cylinder, sets of blades 18, 19 and common exhaust pipes 16, 17 being provided on each side of a row of cylinders, as described in Specification 251.938. The exhaust space around each cylinder may be divided by a partition into two spaces 14, 15. The blades may be angular as shown in Fig. 2, or curved as at 25, Fig. 3, the outer edges 27 overlapping the inner edges, and the blades may be parallel-sided as at 20, Fig. 1, or may increase in width from 21 to 22, Fig. 1. The blades may be rivetted to or cast in one with side plates. Scavenging ports 6 and scavenging-air pipes 10. 11 are provided.
Patent GB-1026243-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B35/00
Filed: 1964-06-18
Abstract: 1,026,243. Knitting-machines. ELITEXSDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVL June 18, 1964 [June 6, 1963], No. 25844/64. Heading D1C. The yarn severing device for the main or reinforcing yarns fed to the needles of a circular machine is constituted by an electrical heater element U 1  which is incorporated in one branch of a bridge circuit which includes in its other branches the partial secondary windings 21, 22 of a transformer and an auxiliary resistance 2. The diagonal is formed by a control relay HR which in the event of the heater element becoming defective is caused to function and stop the machine. The heater element for severing the reinforcing yarns may replace the auxiliary resistance R in a bridge circuit which also includes the heater element U 1 . The heater element for the main yarns is disposed within the needle circle and the heater element for the reinforcing yarns is disposed outside the needle circle but capable of moving to sever the reinforcing yarns when desired. An arrangement comprising a tube in which the end of the thread is pneumatically clamped after being severed is provided above the dial of the machine.
Patent GB-953272-A (GB)
Title: Containers for cryogenic liquids and gases
IPC: F17C13/08
Filed: 1962-07-05
Abstract: 953,272. Storing liquefied gases. BENDIX CORPORATION. July 5, 1962 [July 13, 1961], No. 25869/62. Heading F4P. A container 10 for gases, particularly liquefied gases such as oxygen or hydrogen, comprises an inner vessel 16 surrounded by but spaced from an outer vessel 11, the inner vessel being mounted within the outer vessel by a pair of conduits 25, 29, each carrying a plurality of heat insulating spacers 30, 31 and 32, the latter having dimensions such that at ambient temperature they engage both vessels whereas when the inner vessel contains the gas and is cooled thereby the area of engagement of the spacers is reduced or some of the latter are disengaged from at least one of the vessels. The conduits provide communication between the outside of the container and the inner vessel 16 and the space between the vessels is evacuated or contains insulation material. The spacers are preferably made of plastic materials such as trifluorochloroethylene and tetrafluoroethylene and the vessels 16 and 11 are made of stainless steel. The spacers are retained by rings 35 fastened to the conduits 25, 29 and the conduit 29 is extended by a tube 36 providing communication to the bottom of the inner vessel. The conduits 25, 29 may extend vertically.
Patent GB-666823-A (GB)
Title: Improvements in or relating to electrically heated sealing devices
Inventor: SHOLLICK ALFRED WILLIAM
IPC: B44D3/16
Filed: 1949-10-08
Abstract: 666,823. Supplying current to rotating conductors. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Sept. 19, 1950 [Oct. 8, 1949], No. 25870/49. Class 38 (i). [Also in Groups VIII and XI] An electrically-heated roller 20 for seaming thermoplastic sheets (see Group XI) has journals 23 carrying in porcelain bushes 26 metal pins 27 with projecting hemi-spherical heads, so that when the roller is mounted in holes 19 in metal limbs 10, 11 of a fork-like handle, current is supplied through inwardly-tensioned metal strips 12 having hemi-spherical contacts 13 bearing on the pins 27. The strips 12 are mounted by insulated screws 15 on mica strips 14 also insulating supply wires 16 from the metal limbs 10. 11. The leads 28 of the heater are connected to the pins, which are separated by a central insulator 29.
Patent GB-752763-A (GB)
Title: Apparatus for actuating a production counter
IPC: G06M1/08
Filed: 1954-09-07
Abstract: 752,763. Counting-apparatus; registering output of machines. GOODYEAR TIRE & RUBBER CO. Sept. 7, 1954 [April 1, 1954], No. 25903/54. Classes 106 (1) and 106 (4). An apparatus for counting articles manufactured in a plurality of operations on a production machine comprises a counter, an article production machine, a plurality of switch means on said production machine energized respectively by the initiation of one of a predetermined number of operations in the production cycle of said machine, an open-contact associated with each respective switch means, means for sequentially closing said contacts only in response to sequential energization of said switch means, and means for advancing said counter energized by closing the last contact in the sequence. The counter 4, Fig. 1, is actuated by oscillation of a shaft 8 effected through linkage 9, 10 by the armature 14 of a solenoid 11. The counter prints on a card inserted in the opening 6 on operation of a lever 5. A solenoid 18 controls the wiper 19 of a rotary switch 31-38, Fig. 5, through a pawl and ratchet mechanizing the actuating stroke of the pawl of which is determined by an adjustable stop. Each of the contacts 31-38 of the rotary switch is connected to a corresponding switch 44-51 which are respectively actuated manually or automatically by the initiation of an operation of the machine. The solenoid 11 is in series with the contact 38. If necessary a time delay relay 52 may be in series with a switch 44-51. The arrangement is such that sequential operation of the switches 44-51 is required for stepping the wiper arm over the contacts 31-38 when the solenoid 11 will be energized to actuate the counter.
Patent GB-1172457-A (GB)
Title: Improvements in or relating to fixing devices for cowls, ventilators and the like
Inventor: BREWER CLIFFORD EDMUND
IPC: F23L17/12
Filed: 1967-06-05
Abstract: 1,172,457. Fixing cowls. C. E. BREWER. 16 July, 1968 [5 June, 1967], No. 25928/67. Heading F4J. A cowl 10 formed of four concave panels 11 defining vertical vents 14 at the corners as in Specification 903,003 is fixed to a chimney pot 15 by four lower corner brackets 16 each of substantially trapezium shape in plan with downwardly turned flanges, the parallel flanges being apertured at 18 to receive a hook element 19 engaging the chimney and formed with ratchet teeth 20 engaging a locking element 22 acting as a pawl. The locking element is a block 22 inside the bracket formed with ratchet teeth 23 engaging teeth 20. The block 22 may be spring pressed. When the dependent hooked portions 19a of the elements 19 engage the chimney pot, the ratchets are tightened by a forked end tool 24 to clamp said portions 19a against the pot. In modifications (Figs. 5 and 6) the bracket is formed with dependent spring portions engaging the ratchet teeth 20 like a pawl.
Patent GB-358668-A (GB)
Title: Improvements in the manufacture of waxes
IPC: C10G73/42
Filed: 1930-08-30
Abstract: Paraffin wax which has been sweated or otherwise freed from oil is separated into fractions of more limited melting and boiling point range by fractional distillation, preferably under an absolute pressure of 2-10 mm. with or without the use of steam or other inert gas.  Each fraction may be further divided in similar manner.  The waxes produced have a characteristic crystalline appearance, fracture along the crystal faces giving a shining fracture, and on crushing between the fingers split into crystalline flakes.  Waxes of specified melting point may be obtained by reuniting the necessary fractions or sub-fractions.
Patent GB-1273754-A (GB)
Title: A computer memory strobing circuit
IPC: G11C5/00
Filed: 1969-05-21
Abstract: 1,273,754. Magnetic storage arrangements. FERROXCUBE CORP OF AMERICA. 21 May, 1969 [21 May, 1968], No. 25951/69. Heading H3B In a magnetic data storage system, Fig 2, row drive lines 18 are connected to a current source V S  and via gates 20 to a constant current line, 24 connected to a constant current sink 26, the constant current flowing through a diode 30 when gates 20 are closed, and a strobe pulse generating circuit 32 is connected to line 24 so that when a core is selected by opening a gate the resulting current pulse from V S1  on the appropriate row line reverse biases diode 30 and the voltage appearing across the diode triggers the strobe circuit. The strobe circuit has a fixed delay, and the pulse occurs at a time t 1 , Fig. 1, to coincide with the peak of a "1" output pulse, the strobe and output pulses being fed to an "and" gate so that a final output is obtained only from cores containing a "1" In. Fig. 4, line 52 is supplied with a constant current whose value is determined by a temperature dependant reference voltage at the base of transistor 5À4 and is equal to that required to switch a core at a given temperature, and during non-selection diode 60 clamps the line to ground The cores of matrix 34 are selected by half select pulses from column source 44 and thereafter from row conductors 36A ... 36D. To produce a pulse in a row conductor, for example 36B, a pulse is applied to the base g or c of a selection transistor 50c or 46c respectively depending on the row pulse polarity required, that is whether the pulse is for reading or writing. When the row pulse rises to a value equal to the constant current, diode 60 ceases to clamp line 52 to ground and the strobe pulse generator 62 is activated, a delayed pulse passing from delay unit 64 to "and" gate 66. The second input of this gate allows the strobe system to be disconnected if required, as in writing. A second "and" gate 68 gates the output pulse of sense conductor 40 with the strobe pulse so that a strobed memory output occurs only for a "1" on the sense conductor. Row and column conductors may be reversed, but the strobe triggering should be initiated by the last-to-be selected conductor. A suitable strobe generating and delay circuit, and the associated waveforms are described, Figs. 5, 6 (not shown).
Patent GB-616204-A (GB)
Title: Process for turning with a diamond tool
IPC: B23B27/20
Filed: 1946-08-29
Abstract: 616,204. Diamond tools. OLIVIER, C., and KAENEL, R. VON. Aug. 29, 1946, No. 26015. Convention date, Aug. 9. [Class 124] [Also in Group XXII] In a process of turning with a diamond tool, the tool 11 has a polishing edge 12 formed by two flat intersecting surfaces 16, 17 and is set relative to the work 10 with a clearance angle 19 having a negative value of between 0 and 10 degrees so that the work rubs on the flank surface 16; the cutting angle contained between the two surfaces 16, 17 is between 90 and 100 degrees. The tool is tilted as shown in Fig. 2 so that the ends of the polishing edge 12 do not contact the work and do not leave tool marks at the end of a turning operation. The actual cutting is performed by an edge 13 arranged at an obtuse angle to the polishing edge and having positive clearance and an acute cutting angle.
Patent GB-734165-A (GB)
Title: Improvements in or relating to electrostatic precipitation apparatus for the removalof suspended materials from gases
IPC: B03C3/36
Filed: 1953-09-23
Abstract: 734,165. Electrostatic filters. RESEARCH CORPORATION. Sept. 23, 1953 [Oct. 15, 1952], No. 26214/53. Class 39 (1). An. electrostatic precipitator comprises collecting electrode structures 3 having inclined apertured members and complementary discharge electrode structures 2 having inclined louvred members, the louvres extending in the direction of gas flow and providing re-entrant passages so as to subject the gas flowing to and through these passages to an abrupt change of direction. Particles are then precipitated under the combined action of the electric field and the centrifugal forces. The U-shaped ends 4 of the discharge electrodes form traps for heavier particles transported past the collecting electrodes. Pipes 6 are provided in the traps 4 for drawing off gas containing these heavier particles. The pipes 6 connect to a common pipe 5. The louvres in the discharge electrodes may be formed by pressing out from a plate or by an assembly of angled members. The angled members may be serrated at their apices. The collecting electrodes may consist of woven material, perforated sheet metal or expanded metal.
Patent GB-481268-A (GB)
Title: Improvements in demountable tank bodies for vehicles
IPC: B60P3/22
Filed: 1936-09-08
Abstract: 481,268. Tank wagons. FITCH, B. F. Sept. 8, 1936, No. 26231/37. Convention date, July 28, 1936. Divided out of 481,560. [Classes 103 (iv) mid 108 (i)] A double-walled demountable vehicle tank is provided near the bottom of one or both of its ends with offset portions 30 which, with a rear vertical wall 31, form a pocket 3.2 adapted to accommodate a valve 40 for emptying the tank. Access of dirt &c. to the pocket 32 is prevented by the provision of a pair of folding doors 50 'hinged at 51 to a tank skirting 26 of which the doors 50 form a continuation.
Patent GB-645192-A (GB)
Title: Improvements in or relating to the purification of aqueous solutions of sugar
IPC: C13B20/14
Filed: 1947-09-29
Abstract: A process of purifying an aqueous solution containing a sugar including sugar juices and sugar syrups comprises passing said solution through an ion exchange purification system to remove at least 50 per cent of non-sugar solids in the solution, adding about 0.01-0.1 per cent of phosphoric acid calculated as P2O5 and based upon the total remaining solids in the solution, adjusting the pH to about 6-8, e.g. by lime, and removing coagulated and precipitated material from said solution. In one example a raw sugar cane juice of 16.66 DEG  Brix was passed through three pairs of beds of ion exchangers, the first in each case being a cation exchanger.  To the treated juice is added 0.02 per cent H3PO4 in the form of an aqueous solution containing 10-20 per cent ortho phosphoric acid, the mixture is agitated and milk of lime about 10 DEG  Baum<\>e added to bring the pH to about 7.3-7.4 and heated to 185-215 DEG F to bring about coagulation and is then run into a settling tank or clarifier. The juice is drawn off, filtered if necessary, and evaporated to 55-65 DEG  Brix mixed with 0.02 per cent vegetable carbon if desired to remove colour and filtered to leave a clear colourless sugar syrup.