baber/WOPTO huggingface dataset:
Patent GB-348967-A (GB)
Title: Improvements in methods and instruments for finding the range difference of two aiming points
IPC: G01C3/14
Filed: 1930-08-01
Abstract: 348,967. Range-finders. ZEISS, C., Carl-Zeiss-Strasse, Jena, Germany. Aug. 1, 1930, No. 23203. Convention date, Aug. 7, 1929. [Class 97 (i).] The range-difference of two distant points is determined by reducing the apparent distance between the combined stereoscopic images of the two points to zero, the distance of one of the objects from the observation point being known. In the instrument shown in Fig. 2, the pentagonal prisms 1, 2 receive rays from one point and the pentagonal prisms 21, 22 rays from the other point. The pencils of rays in each half of the range-finder are combined into their respective objectives 3, 4 by the compound prisms 15, 17 and 16, 18 respectively, comprising trapeziform prisms 15, 16 united to triangular prisms 17, 18 by half-silvered surfaces 19, 20 respectively. The triangular prisms 5, 6 reflect the rays into the eyepieces 11, 12 respectively through the mark plates 7, 8, that may be used to determine the distance of the reference point A in the usual manner. The stereoscopic images are superposed by turning the compensators 23, 24 in the same sense, and the turning movement of the compensators in the reverse sense then necessary to reduce the apparent range-difference to zero is a measure of the required range-difference. In the second example shown in Figs. 4 and 5, the fields of view of the eyepieces are divided by a horizontal separating line, the image appearing above being vertically inverted. The compensating devices situated in the lower system comprise fixed dispersive lenses 47, 47<1>, and converging lenses 48, 49, whereof the superfluous sectors above and below have been cut off, displaceable perpendicularly to the range-finder base, either by the milled head 59 in the opposite sense, Fig. 5, whereby the images are vertically aligned, or by the milled head 60 in the same sense, whereby the apparent range-difference of the images may be reduced to zero. The compensator 61 is employed in the usual manner to determine the absolute distance of either of the objects. Logarithmic scales may be employed by coupling the divisions to the measuring-devices of the instrument by logarithmic cams. In the third example, the fields of view of the eyepieces are divided by a perpendicular separating line with one image laterally inverted, the objective prisms being triangular. The measuring devices may be as in the first or second examples. In the fourth example the compensator comprises wedge-shaped prisms situated in front of the objective. The images, that of the reference point being vertically inverted and that of the other point vertically correct, are vertically aligned merely by rotating the instrument about a vertical axis. The difference in the lateral direction of the two objects may also be determined.
Patent GB-677543-A (GB)
Title: Improved means for reciprocating spindle or ring carrying rails in continuous spinning machines
IPC: D01H1/36
Filed: 1949-09-07
Abstract: 677,543. Building motions in spinning and like machines. MACOTEX SOC. AR.L., and PEROTTI, A. Sept. 7, 1949, No. 23210/49. Class 120(ii) Ring or spindle rails 6 are each raised and lowered positively by a longitudinally reciprocating rod 1 operating on cranks connected to the rails. In one embodiment each rail section has two cranks, the crank 4 being connected to a chain 7 rolling over pulleys 8, 8' for raising the rail, and the crank 4' having a direct sliding connection with the rail for lowering it. In another embodiment (not shown), the two cranks are replaced by a single three armed lever, one arm being connected to the chain 7, another to the rod 1 and the third having a direct sliding connection with the rail 6.
Patent GB-289689-A (GB)
Title: Improvements in or relating to electric water heaters primarily intended for use in making coffee
IPC: A47J31/54
Filed: 1927-09-05
Abstract: 289,689. Brandt, M., and Naujoks, R. Sept. 5, 1927. Heating by electricity. - The apparatus is primarily intended for use in making coffee and has in combination a steam space 4 located above the outlet 24 to the extraction appliance 22, and inlet and outlet valves 20, 25, and a switch 30, actuated by a common operating member 29 and so interconnected that the outlet valve is moved into the closed position only after first closing the water inlet valve and switching off the current. The water container comprises inner and outer shells 1, 2 having flanges 5, 6 secured together by pivoted bolts 7. Heaters 8, 10 are arranged in contact with the shells and connected in series. An outer enclosing casing 12 filled with heat insulation is provided. The valves are interconnected by toothed segments 27, 28 and a cam 34 on the spindle of the valve 20 controls the tipping switch through levers 36, 48. On turning the hand wheel 29 the outlet valve is first opened and then the switch is moved to the closed position. When dripping from the extraction device occurs the wheel is moved further to open the inlet valve. The switch is also controlled by a bimetallic trip 40 soldered to a metallic member 41. The container is also fitted with a safety valve 16 and a steam outlet pipe 18, fitted with a valve 17, serving to tap steam for heating liquids.
Patent GB-740420-A (GB)
Title: Improvements in thickness measuring devices using ultrasonic waves
Inventor: MARTIN HANS-JOACHIM
IPC: G01B17/02
Filed: 1953-08-24
Abstract: 740,420. Ultrasonic inspection devices. VEB C. ZEISS JENA. Aug. 24, 1953, No. 23246/53. Class 118(2) A method measuring the thickness of objects or locating flaws therein comprises transmitting frequency - modulated ultrasonic waves into one surface of the object and hetrodyning electrical waves corresponding to the contemporaneous transmitted and received ultrasonic waves to give a beat frequency indictive of the required distance. As shown in Fig. 3, the frequency of the triode oscillator section of the valve 11 is varied cyclically in a triangular manner, Fig. 1 (not shown), by a motor-driven condenser 13 and the oscillator output is applied to the transmitting transducer 9 and to the hexode section of valve 11 where it is mixed with the output from the receiving transducer 9, the resultant beat frequency being selected and amplified in valves 20 and 23 and converted by valve 25 into a train of constant amplitude pulses which periodically charge and discharge condenser 27 via rectifiers 28, 29, the resultant D.C. charging current producing a smoothed D.C. voltage across resistence, 34 whose amplitude as indicated by 30 is proportional to the beat frequency. Meter 30 may be calibrated directly in distance units and the ratio of variation of the transmitted frequency may be adjusted by selecting appropriate condensers 15-17 by switch 18 when testing objects having different velocities of propagation so that the calibration still holds. When the apparatus is energized by a battery a compensating bias voltage is applied at terminals 32, 33 to render the calibration independent of fluctuations in battery voltage. Alternatively, the transmit'ted frequency may be varied electronically, the switched condensers 15-17 may be replaced by a variable condenser and the frequency meter may comprise a frequency discriminator. Transducers, Fig. 2, shows a combined transmitting and receiving transducer comprising quartz strips 5 and 6 separated by insulating layers 7, one set of interconnected strips 5 being employed on transmission and the other 6 on reception. When locating small defects some of the strips may be disconnected.
Patent GB-494050-A (GB)
Title: Improvements relating to the spring shackles of motor vehicles
IPC: B60G7/00
Filed: 1937-08-25
Abstract: 494,050. Spring shackles; ball joints. CROSSLEY MOTORS, Ltd., and WISHART, T. D. Aug. 25, 1937, No. 23276. [Class 108 (iii)] [Also in Group XXV] To prevent twisting of a vehicle leaf spring connected to the chassis by shackle links f, g, the shackle pin a is passed through a bush b having a spherical part rotatable in a socket in brackets c, d secured to the chassis side member e. Lubrication is effected by a grease nipple h and passages i, j, and dust covers or grease retainers k are provided.
Patent GB-1425468-A (GB)
Title: Electrical switches
IPC: H01H35/00
Filed: 1972-05-18
Abstract: 1425468 Preventing unauthorized use of IC engines LUCAS ELECTRICAL CO Ltd 4 May 1973 [18 May 1972] 23309/72 Heading F1B [Also in Division H1] In an electrical switch with a pivotally mounted operating member 23 carrying a movable contact 24, the position of fixed contact 15 is adjustable to adjust the displacement of operating member 23 to operate the switch. Member 23 is biased to the off position by spring 25 which also serves to connect contact 24 to terminal 27. Fixed contact 15 is mounted on a bolt 16 with its head in a knob 17 and a spring 18 between body 11 and contact 15, and another spring 21 connecting contact 15  to terminal 19. In a modification, Fig. 2 (not shown), terminal 19 is on the same side of the body as terminal 27 and knob 17 is on the opposite side of the body. The switched is intended for use in an automobile, with the switch fastened to the seat frame and member 23 under the centre of the seat to sense when somebody is on the seat. If the seat is occupied the engine cannot be started unless the seat belt is fastened, or in the case of a passenger seat, the system is such that the engine can be started when the seat is unoccupied.
Patent GB-395529-A (GB)
Title: Improvements in and relating to electric discharge tubes
IPC: H01J35/06
Filed: 1932-08-22
Abstract: 395,529. Thermionic cathodes. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 22, 1932, No. 23494. Convention date, Aug. 20, 1931. [Class 39 (i).]. A cathode, more particularly for Braun and Rontgenray tubes, consists of a pinshaped electron-emitting portion which is heated by conduction and/or radiation from another and non- emitting portion, and has a cross-section corresponding to the desired shape of the fluorescent speck. The pin a may be tipped with alkaline-earth oxide or the tip may be hollow and filled with the oxide. In the form shown in Fig. 3 the heater comprises a cylinder b containing a filament d surrounded by insulation c. In the form shown in Fig. 4, the pin a is directly heated by a filament e. Reference has been directed by the Comptroller to Specification 155,554, [Class 39 (i), Electric lamps, Arc &c.].
Patent GB-704315-A (GB)
Title: Improvements in and relating to an arrangement for locking, boring, milling and likemachine tool spindles against movement
IPC: B23Q1/28
Filed: 1952-09-19
Abstract: 704,315. Machine-tool details. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Sept. 19, 1952 [Oct. 10, 1951], No. 23549/52. Class 83 (3) An arrangement for locking the quill against axial movement in a drilling, boring and milling machine comprises a collar 4, Fig. 3, fitted over the quill 5 carrying the rotary tool spindle (not shown), the collar being split and having oblique surfaces 9a, 9b, Fig. 2, against which wedges 10a, 10b, are drawn by a screw 12. A part 2 secured to the spindle headstock houses the clamping arrangement and simultaneously with the clamping of the quill the collar-ends and wedges are expanded against guide walls in the member 2 and headstock, Fig. 2, to hold the parts against radial movement.
Patent GB-794874-A (GB)
Title: Tape length indicator, more particularly for magnetic sound tapes
IPC: G11B27/19
Filed: 1956-08-01
Abstract: 794,874. Tape recorders. LOEWE, S. Aug. 1, 1956 [Aug. 5, 1955], No. 23687/56. Class 40 (2). A tape-length indicator, for a magnetic tape recorder, comprises a scale 6 with radiallyarranged divisions which is secured to a yoke 7, the arms of which are lightly held in a groove 4 on the tape roll carrier. The indicator is pre- .vented from rotation by means of a fixed peg 8 which engages the yoke. The indicator scale has bevelled edges, the lower parts of which slide lightly on the upper edge of the tape coil. The part 6 is rotatable about one arm of the yoke, one side resting on the other arm. Two stop pins prevent lateral displacement of the part 6 on the yoke arm. In Fig. 2 (not shown) the parts of the yoke engaging the groove 4 are restricted to several small ares. The indicator may be made of metal, cellulose or plastic material and coloured. A fixed or detachable magnifying glass may be placed above the scale.
Patent GB-715133-A (GB)
Title: Improvements in or relating to reverse-thrust and/or torque sensitive devices
Inventor: GREEN PERCIE FRANCIS
IPC: B64D27/10
Filed: 1951-10-11
Abstract: 715,133. Turbines. ROLLS-ROYCE, Ltd. Oct. 9, 1952 [Oct. 11, 1951], No. 23749/51. Class 110(3) [Also in Groups XXXIII and XXXVII] A visual or oral alarm is operated by a toggle switch 40 actuated by limited axial movement of a propeller shaft 11 forming an extension of a gas turbine shaft. The shaft 11 is supported in alignment and thrust bearings, and axial movement due to a reversal of the torque on the shaft rocks a lever 35 to operate the switch 40.
Patent GB-440445-A (GB)
Title: Improvements in devices for injecting fire-extinguishing gases into pulverulent or granular material
IPC: A62C3/04
Filed: 1934-08-17
Abstract: 440,445. Fire-extinguishing. TENNANT, W. J., 111, Hatton Garden, London.-(Minimax Akt.-Ges. ; 20, Schiffbauerdamm, Berlin) Aug. 17, 1934, No. 23784. [Class 47 (ii)] Relates to devices for injecting fire -. extinguishing gases into storec granular or pulverulent materials, of the kind consisting of a perforated tube c adapted tc be connected by a pipe m to a source of gas and to be forced into or permanently located in the stored material ; and consists in enclosing the pipe in a porous hollow body, shown as a porous tube k<1>. Passage of the gas through the porous tube reduces its velocity and kinetic energy, thereby preventing violent disturbance of the material by the issuing gas. Several tubes may be fixed in the lower end of a coal dust hopper.
Patent GB-863638-A (GB)
Title: Improvements in or relating to curtain heading tape
Inventor: STEPHENSON MATTHIAS
IPC: A47H23/08
Filed: 1956-08-03
Abstract: 863,638. Curtain heading tapes. THOMAS FRENCH & SONS Ltd. Aug. 6, 1957 [Aug. 3, 1956], No. 23947/56. Drawings to Specification. Class 142(4) In a curtain heading tape having hook tubes alternating on the two sides of the base tape, the warp threads for the hook tube zone are divided into four groups; one group is present in all the hook tube fronts on one side of the tape and in the base tape between those hook tubes, while another group behaves in the same way in respect of the hook tubes on the other side of the tape; a third group is present in all the hook tube fronts on both sides of the tape, passing through the base tape between successive hook tubes; the fourth group remains in the base tape throughout. The threads of the two last mentioned groups are shed in pairs, though in one construction single threads of the other groups are interposed between the two threads of a pair. Specifications 664,835 and 760,830 are referred to.
Patent GB-533523-A (GB)
Title: Improvements in the manufacture of tea
IPC: F26B5/00
Filed: 1939-08-21
Abstract: 533,523. Tea manufacture. LYONS & CO., Ltd., J. (Mowbray, E. G. B. de., and Gridley, E. H.). Aug. 21, 1939, No. 24038. [Class 129] The picked leaf is subjected to chemical wither at relatively low temperature without regard to physical wither, and excess moisture is then reduced by mechanical means. The low temperature is maintained by humidification of the air. A suitable temperature range is 45‹ F. to 75‹ F. The excess moisture removed from the leaf may be concentrated and re-incorporated in the leaf. The leaf is rolled, fermented and fired as usual after the chemical withering.
Patent GB-387734-A (GB)
Title: Improvements relating to internal combustion locomotives
IPC: F02B33/00
Filed: 1931-08-26
Abstract: 387,734. Internal-combustion engine locomotives. HUMBOLDT-DEUTZMOTOREN AKT.-GES., 149, Deutz-Mulheimerstrasse, Deutz, Cologne, Germany. Aug. 26, 1931, No. 24041. Convention date, Dec. 17, 1930. [Class 79 (i).] In a locomotive propelled by a Diesel engine with cylinders j driving axles k directly, the blower a for the engine is driven from an axle which is not driven by the engine. In the construction shown the blower is mounted on a bogie r and is driven from one of the bogie axles t by chain gear u. This arrangement has the following advantages : (1) the blower, being separated from the engine, is more accessible for inspection and repair, (2) while during normal running the blower speed corresponds to the engine speed, should the driving wheels slip while the engine is accelerating the blower speed does not increase and therefore too little air is delivered to the accelerating engine, the engine speed immediately falls and the slipping is stopped, and (3) as the smaller bogie or other wheels run at a higher speed than the driving wheels the gearing for the blower, which usually runs at a very high speed, is more readily arranged. The blower may be mounted on the sprung bogie frame or partly on the bogie axle, and may be driven from the axle of a radial truck. Two blowers may be driven from the two axles of a bogie.
Patent GB-867158-A (GB)
Title: Recording apparatus
Filed: 1959-07-14
Abstract: 867,158. Photo-electric testing apparatus. BAUSCH & LOMB Inc. July 14, 1959 [July 21, 1958], No. 24134/59. Class 40(3) [Also in Group XIX] Apparatus for plotting a dependent variable "y" against an independent variable "x", in which a stylus 12 is moved relative to a chart 10 in the x-direction at a speed inversely proportional to the rate of change of the dependent variable (see Group XIX) may be used as a spectrophotometer recording absorption spectra. The system 32 then generates signals in accordance with a comparison between the transmission of light through the sample specimen and a reference or standard fluid specimen and the transducer 34 would take the form of a monochromator for varying the wavelength of the light passing through the sample and standard specimens. Thus, as the transmittance begins to change rapidly the stylus slows down and has more time to record the relatively greater slope.
Patent GB-626202-A (GB)
Title: Improvements relating to automatic electric regulators
IPC: G05B11/01
Filed: 1946-08-14
Abstract: 626,202. Automatic voltage control systems. ENGLISH ELECTRIC CO., Ltd., and JOWETT, W. G. Aug. 14, 1946, No. 24151. [Class 38 (iv)] [Also in Group XXXVII] In apparatus for maintaining constant any output component of a D.C. excited dynamoelectric machine, e.g. a generator or motor, controlled by adjustment of the excitation, a switch (see Group XXXVII) is provided having a centre contact 6b adapted to engage one or other of a pair of contacts 6c, 6d which are vibrated under the control of the reversible motor 5 of the field regulator 4 in response to deviation of the output component from a predetermined value. The switch cuts resistance 8 or 9 into or out of the field circuit of the machine 1 so as to vary the excitation in a sense tending to correct the deviation and also energizes the reversible motor 5 operating the vibrating contacts, to adjust the regulator 4 in the field circuit of machine 1. The interaction resulting from the operation of the switch 6, the resistances 8 or 9 and the regulator 4 is such that the regulator is moved in steps until stabilized conditions are restored. Under stable conditions a spring 6e balances the effect of operating coil 6a of the relay so that the centre contact 6b remains in the mid-position. In a modification (Fig. 2, not shown) the resistances 8 and 9 are replaced by coils operating relays which switch into circuit two resistances connected in parallel with the field winding of the generator and the variable resistance respectively. The extent of vibration of the switch may be adjusted by a variable-throw eccentric drive.
Patent GB-259230-A (GB)
Title: Improvements in and relating to the synthetic production of ammonia
IPC: C01C1/04
Filed: 1926-09-30
Abstract: 259,230. Uhde, F. Oct. 2, 1925, [Convention date]. Catalytic apparatus; ammonia, catalytic production of from nitrogen and hydrogen. -To avoid overheating of the catalyst, the reaction vessel for the catalytic synthesis of ammonia is provided with a plurality of double pipes, and the gases pass in turn through the inner pipes, the outer pipes, and the catalyst in such a way that the direction of flow through the inner pipes is the same as the direction of flow through the catalyst. As shown, the gases enter the reaction vessel at F, traverse the inner pipes J, the outer pipes H, and the catalyst K, and leave the reaction vessel at G.
Patent GB-895823-A (GB)
Title: Improvements in or relating to eyelets
IPC: B21D53/36
Filed: 1957-07-31
Abstract: 895,823. Making eyelets. TUCKER EYELET CO. Ltd., GEORGE, and HENSHAW J. N. July 30, 1958 [July 31, 1957], No. 24223/57. Class 83 (2). [Also in Groups VIII and XXV] An eyelet comprises body with a tubular metal barrel and a head flange integral at one end, and a layer of synthetic resin adhered to the body and extending continuously over the head flange and down through the barrel. The eyelet is made by stamping a disc from the metal and plastic laminated sheet and forming a cup blank which is drawn by successive operations into eyelet shape, and the web closing the end of the barrel remote from the head is then removed. Specification 15204/08 is referred to.
Patent GB-756564-A (GB)
Title: Improvements relating to scavenging in high-voltage electric circuit-breakers
Inventor: SIMPSON GEOFFREY KENDALL
IPC: H01H33/55
Filed: 1953-09-02
Abstract: 756,564. Liquid-blast switches. REYROLLE & CO., Ltd. A. Sept. 1, 1954 [Sept. 2, 1953], No. 24307/53. Class 38(5) A circuit-breaker has a closed scavenging chamber 26 lying below or partly below the level 28 of arc extinguishing liquid in the circuitbreaker tank 21, the chamber having- a pressure-responsive inlet valve 29 exposed to the exhaust pressure in the circuit-breaker and a pressure responsive outlet valve 27 exposed to the pressure in the arcing region. When the circuit - breaker is opened, the pressure set up by the arcing between contacts 22, 23 closes the outlet valve 27 and the pocket of gas 30 in the upper end of the chamber 26 is compressed by the exhaust pressure. As the discharge of arcing products proceeds, the pressure in the region of the contacts drops, the inlet valve 29 closes and the pocket of gas 30 is left at a higher pressure than the liquid outside the valve 27, so that the valve 27 opens and liquid is driven out of the chamber 26 by the expanding gas bubble 30 into the arcing zone to scavenge the arcing products from the contacts. When the pressure inside the chamber 26 equals that outside, the inlet valve 29 falls open or leaks, enabling liquid to flow back into the chamber 26 through the outlet valve until equilibrium conditions are established. In the Figure shown the circuit-breaker is of the small-oilvolume type and has the chamber 30 above an arc control device 20 but in Fig. 3 (not shown), a similar type of circuit breaker has the scavenging chamber mounted at the side of the are control device and wholly immersed. In Fig. 1 (not shown), the circuit-breaker is of the bulkoil dead-tank type.