baber/WOPTO huggingface dataset:
Patent GB-898598-A (GB)
Title: Indexing device for the main spindle of automatic lathes
IPC: B23Q16/06
Filed: 1960-06-02
Abstract: 898,598. Automatic lathes. HAHN, E. C., [trading as INDEX-WERKE KOMM.-GES. HAHY & TESKY]. June 2, 1960 [June 30, 1959], No. 19600/60. Class 83 (3). An automatic lathe is provided with means for stopping the spindle in a number of predetermined positions so that auxiliary operations may be carried out on a workpiece such as cross-drilling. The lathe-spindle 19, Fig. 1, carries a workpiece 220 which is to be crossdrilled at a number of positions by a drill-head 111 mounted on a cross-slide 110. The spindle is driven for the working operation in forward or reverse directions from sprockets 32, 33, when a clutch 25 is engaged. A control lever 36 for the clutch is moved by a cam sleeve 39 on an auxiliary control shaft which also drives a cam 96, Fig. 2, for disengaging the locking lever of the indexing mechanism. The main clutch is brought to the neutral position prior to indexing and is braked and then reversed and driven slowly by an electromagnetic device 88, Fig. 1, with an electrically operated clutch 87 controlled by a switch 75. A control lever 55, connecting rod 70 and bell-crank 200 normally holds the locking or stop lever 222 out of engagement against the pressure of a spring 280. On automatic release of the control lever 55, when the clutch 25 is moved to the neutral position, the switch 75 is operated so that the auxiliary braking and drive device 88 is switched in. On slow reversal of the spindle a spring-pressed pin 144, Fig. 6, on the stop-lever 222 bears against the periphery of a disc 130, Figs. 2 and 6, arranged on the spindle adjacent the notched indexing disc 125. The latch 140 on the stop lever is thus prevented from engaging an indexing notch until the pin 144 enters a recess 135 in disc 130. When this occurs the pin is also forced sideways and bears against the face of disc 130 until the end of the indexing operations. The lock or latch 140 is now free to engage the notch in the indexing disc adjacent the recess 135 in the direction of rotation. The latch is disengaged by cam disc 96 and the spindle rotates to the next notch &c. One of the indexed positions may be used for inserting a new workpiece in the spindle chuck.
Patent GB-1519946-A (GB)
Title: Vent plug for storage batteries
IPC: H01M2/12
Filed: 1977-05-10
Abstract: 1519946 Vent plugs for batteries VARTA BATTERIE AG 10 May 1977 [14 May 1976] 19617/77 Heading H1B A vent plug for a battery has a nozzle 7 for escape of the liquid-gas mixture, a baffle (the cover 2) for separating the liquid and gas, and a return passage 4, having a porous body 9, for the liquid. The arrangement is such that the hydrostatic pressure in the passage 4 is greater than the pressure in the nozzle 7, when it is blocked by a drop of electrolyte. In a modification (Fig. 3, not shown) the baffle may be a small plate resting freely on the nozzle.
Patent GB-223184-A (GB)
Title: Improvements in detachable rims for vehicle wheels
IPC: B60B23/10
Filed: 1924-08-19
Abstract: 223,184. Grey, A. G. de, and Auto Sundries, Ltd. Aug. 19,1921. Detachable-rim attachments to wheels. - A rim 1 for a pneumatic tyre of the type described in Specification 186,200 is formed integral with a flange 2 for engagement with the side of a felloe 3 by bolts 5 engaging screw-threaded sockets 6 fitted in recesses in the felloe. The inner surface of the rim 1 is in continuous engagement with the felloe near the flange 2 and also engages the felloe through spaced bearing strips 8 which are preferably formed of non- ferrous metal and which are chamfered towards their inner edges. To force the rim off the felloe the bolts 5 are removed and also a screwed st'ud 10 from a socket 11 in which one of the bolts 5 is inserted and rotated, the bolt bearing against a metal plate 12. The valve tube is locked in position by a nut screwed into engagement with the rim.
Patent GB-594961-A (GB)
Title: Truck cranes
IPC: B66C13/18
Filed: 1944-10-12
Abstract: 594,961. Vehicle supports. BILLINGS, R. O. Oct. 12, 1944, No. 19685. [Class 79 (iii)] [Also in Group XXX] In a truck crane wherein the jib is supported on a turntable mounted on a light weight truck, an outrigger structure is mounted on the truck adapted to be extended into contact with the ground by a hydraulic ram mechanism so as to provide a support for the crane and ensure stability of the truck, said ram mechanism being operated by pumps on the truck controlled by an operator on the turntable. In the embodiment shown, the outrigger mechanism comprises two sleeves 33 secured to the truck frame 15 at 31, 32, in each of which are mounted supporting members 34 to the outer ends of which are secured sleeves 35. These members 34 are moved outwardly in opposite directions by rams 43 in a cylinder 42, said rams being connected to the sleeves 35. In each sleeve 35 is slidably mounted a tube 36 closed at its lower end by a plate 37 to which is secured a foot member 38, and the upper end of each sleeve is closed by a head 39 supporting a cylinder 40 for a ram 41 secured to the plate 37. After operation of the rams 43 to extend the outrigger structure laterally to the dotted line position shown in Fig. 6, the rams 41 are operated so as to lower the feet 38 into contact with' the ground. The feet and the supports 34 may be returned to their retracted positions by a ram 56, Fig. 6, supporting a sheave 58 over which passes a cable 57, this cable being anchored at 59 to the truck frame and connected to a block 52 to which are secured cables 46 passing over sheaves 48, 49, 50, 51, 53, 54 to the plates 37. Fluid-pressure for the rams is provided by pumps 116, 117 driven from the truck motor or other source by a power take-off shaft 113 through endless belts 118, 119. The conduits from the pumps extend beneath the crane turntable 25 and pass upwardly through its centre pin 23 to valves mounted on a control panel 120.
Patent GB-1366959-A (GB)
Title: Colouring fabrics
IPC: D06C23/00
Filed: 1972-04-27
Abstract: 1366959 Producing decorative effects on pile fabrics MONSANTO CO 27 April 1972 [28 April 1971] 19688/72 Addition to 1366960 Heading D1B In a patent of addition to Specification 1366960 wherein an agent is applied to a part of the surface of a pile fabric comprising crimped synthetic pile fibres to cause swelling or solvation of the fibres and dimination of pile height, the fabric dried and then subjected to electropolishing (i.e. a heat embossing process) to cause decrimping and give a lustrous finish to the fibres of higher pile height the modification wherein the agent applied to the surface of the pile fabric contains a dyestuff.
Patent GB-1079228-A (GB)
Title: Improvements in alternating current bridge circuits
Inventor: RICHARDSON PETER KENDALL
IPC: G01R27/26
Filed: 1965-05-11
Abstract: 1,079,228. A.C. measuring bridges. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 26, 1966 [May 11, 1965], No. 19847/65. Heading G1U. A bridge arrangement for determining the capacitance of and the power loss in a capacitor C1 in the first bridge arm includes a known capacitance C2, e.g. a high voltage compressed gas capacitor, fixed resistor R3 and variable resistor R4 in the second, third and fourth arms respectively. A potentiometer R5 in series with a detector D are connected across the bridge. Alternating voltage E is applied across the bridge and a second lower voltage KE in phase with the first, which may be derived from the same transformer source, is applied across the potentiometer. To use the bridge, R4 is adjusted to give a minimum reading on the detector. The proportion of the potentiometer which is in series with the detector is then adjusted to obtain a still lower or zero reading. The capacitance of C1 is given by C1 C2R4/R3 and/the power loss E<SP>2</SP>/R1 = E<SP>2</SP>KkR5/R3(R5+R6)' where k is the fraction of R5 required for balance and R6 is a resistor in the supply circuit of the potentiometer R5. The arrangement is suitable for measuring the capacitance and corona losses on a transmission line, which factors may be varying because of external weather conditions, particularly wind. A detector may be used which is only sensitive to the loss phase, if power loss only is to be evaluated. A somewhat more detailed but substantially similar circuit is described with reference to Fig. 2 (not shown).
Patent GB-686243-A (GB)
Title: Improvements relating to apparatus for applying substances to irregularly shaped articles
IPC: A43D11/00
Filed: 1949-07-28
Abstract: Irregularly-shaped articles are held fixedly on a carrier which moves them so that the irregular surface contacts and passes over a non-driven coating roller of a soft spongy nature such roller being displaceable and rotatable by contact with said surface and being deformable so as to adapt itself to the irregularities of the surface.  Referring to the drawings, as carriage d is moved forward and the toe cap portion of the footwear is about to engage roller c, cam 16 acts on stop 23 causing a <PICT:0686243/III/1> slight downward movement of arm 1 of lever b whereby roller c is moved downwardly as shown in dotted lines, sufficiently for the lower portion of the footwear to engage tangentially the maximum periphery of roller c, and when toe-cap reaches plane 28, said stop 23 is released from cam 16, leaving lever b free to assume under action of counterweight the upper position where it contacts the underside of bulges over the lower sides which are coated until cam 17 strikes stop 23 lowering the entire lever b and roller c.
Patent GB-309156-A (GB)
Title: An improved sound distributing device
IPC: H04R7/14
Filed: 1928-07-09
Abstract: 309,156. Lumiere, L. April 6, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Addition to 298,977. Diaphragms. - A diaphragm of the type described in the parent Specification and comprising a plurality of segments pleated along lines parallel to the radii of the segments, is supported by a plurality of studs g of felt, cork or indiarubber mounted on springs h which exercise a radial pressure on the diaphragm. A central plug member a of felt &c. is connected to the armature d of the electromagent e.
Patent GB-1019557-A (GB)
Title: Improvements in or relating to processes for the manufacture of rubber articles
IPC: B29C45/70
Filed: 1962-05-24
Abstract: 1,019,557. Injection moulding. CONTINENTAL GUMMI-WERKE A.G. May 24, 1962 [May 31, 1961], No. 19935/62. Heading B5A. A process for injection moulding rubber compounds comprises heating the rubber compound in an injection cylinder 15 to just below vulcanizing temperature and then injecting the compound through a nozzle 4 into a heated mould 9 so that it vulcanizes therein. The volume of the injection cylinder 15 is substantially greater than the volume of the mould 9, so that on reciprocation of the injection piston 5 only a small portion of the contents of the cylinder 15 is injected into the mould. The injection cylinder 15 is then refilled through a channel 14 by a screw conveyer 6. The material thus remains in the injection cylinder for a few working cycles before it reaches the nozzle 4, and during this period is gradually heated to just below vulcanizing temperature.
Patent GB-408990-A (GB)
Title: Improvements in or relating to joints for pipes and the like
IPC: F16L21/00
Filed: 1932-07-16
Abstract: 408,990. Pipe connections. HALL & KAY, Ltd., HALL, J. H., KAY, P., and MYERS, A., Stockport Road, Ashton-under- Lyne. July 16, 1932, No. 20154. [Class 99 (i).] Two sheet - metal &c. pipes 5, 6, Fig. 2, are connected by depressing the material of the ends of the pipes into holes or indentations 9 at the ends of a doubleconical junction member 7 which engages the pipe ends, with or without the interposition of packing, and is formed with a central circumferential bead 8 as shown. The depressing operation is effected by one-piece double-armed bars 11 which are adjustably mounted on the junction 7 by bolts 13 and nuts 10 and are provided with end projections 12 aligning with the holes 9, and it may be continued until the projections 12 pierce the pipe ends and themselves enter the said holes. The bars 11 are retained in their final position to assist in maintaining the connection ; alternatively they are replaced by members of similar but lighter construction. In a modification the bars are formed of two overlapping parts connected by the bolts 13. Fig. 4 shows a construction in which a pipe 5 is connected to a junction 7, the free end of which is provided with a jointing flange 14. Specifications 370,948, [Group XXV], and 318,182, [Class 83 (iv)]. are referred to.
Patent GB-462973-A (GB)
Title: Improvements in an electric organ
IPC: G10H3/16
Filed: 1935-07-15
Abstract: 462.973. Electrical musical instruments. YAMASHITA. S. Julv 15, 1935, No. 20185. [Class 88 (ii)] An electric organ comprises a number of reeds 29, electromagnetically controlled from a keyboard b, and one or more microphones 4 associated therewith, the reeds and microphones being enclosed in a felt-lined sound-proof casing 1, to prevent acoustic back - coupling, and the microphones are connected to tonecomposing electric circuits including one or more frequency-multipliers, to which are selectively connected, as by plugs, a number of loudspeakers 14, 15, 17, 18, preferably having different translation characteristics. Any instrument can thereby be imitated. The reeds 29 are mounted on a soundboard 30, and are controlled by electromagnetic valves 19 in an air-chamber 31, connected at 7 to an exhaust fan or blower. In Figs. 2 and 3, current from the single microphone 4 passes through a valveamplifier 5, mounted inside or outside the sound proof casing 1, to a tone-changing device 12, and thence, through an amplifier 13 to the loudspeakers 14, 15, and, through a frequencydoubler 16 and amplifier 37, to the loudspeakers 17, 18. The valve v1 of the amplifier 5 is provided with potentiometer-control 39 of its grid-bias whereby the output wave-form may be altered. The tone-changing device 12 comprises a valve v2, including a variable resistance 40, and a variable condenser 42, by means of which higher harmonics can be produced. The frequency-doubler 16 comprises two valves 24. The output-circuits of the amplifiers 13, 37 each include two volumecontrols, one 44, operated by a common pedal and another 27, operated by the playing keys b, and responsive to the finger-pressure thereon. The tone-changing device 12 and frequencydoubler 16 may be interposed and the volume control 22 may be between the amplifier 5 and the tone changing device 12. In the modified tone-composing circuit shown in Fig. 4, input current from a source 26 of frequency f passes to three branches comprising firstly a series connection of three frequency-doublers 28, each connected to loudspeakers 43<1>, 441 and 45, reproducing frequencies 2f, 4f, 8f respectively ; secondly a direct connection to a loudspeaker 46, reproducing a frequency f; and thirdly to two frequency-triplers 47, with loudspeakers 49, 50 reproducing frequencies 3f and 9f, and including a frequency-doubler 48, with loudspeaker 51 reproducing a frequency 6f. Reeds and microphones having different translation characteristics may also be employed.
Patent GB-188043-A (GB)
Title: Improvements in or relating to hydraulic and other fluid pressure variable-speed gears
IPC: B60K17/10
Filed: 1921-07-28
Abstract: 188,043. Kitson, A. July 28, 1921. Transmitting power. - In fluidoperated variable speed gears comprising a pump 1 and motors 5, 6, 7, 8, the pump and motors are constructed as described in Specification 14728/13, [Class 110 (ii), Rotary engines &c.], and the motors are in two sets connected to separate shafts to form a differential.
Patent GB-1282842-A (GB)
Title: Centrifugal feeder for headed parts
IPC: B65G47/14
Filed: 1971-04-19
Abstract: 1282842 Orienting headed articles TANGEN DRIVES Inc 19 April 1971 [26 Jan 1970] 20378/71 Heading B8S Headed articles 56 Fig. 1, are urged towards a pair of parallel rails 20 by a guide 18 in a tiltable rotary feeder 10. The articles move along the rails suspended by their heads to be further processed. The spacing between the rails is adjusted by turnbuckles 25. The feeder is pivotally supported on trunnions 52 and is tilted by an adjusting screw 50. A ramp may be provided on the guide 18 adjacent the rails 20 for raising the articles. The articles are preferably picked up from an area 60 which has a diameter equal to half the radius of the rotary feeder.
Patent GB-875315-A (GB)
Title: Improvements in or relating to radar apparatus
IPC: G01S13/26
Filed: 1959-06-15
Abstract: 875,315. Frequency-modulated radar. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 15, 1959 [June 18, 1958], No. 20421/59. Class 40(7) Relates to a sawtooth frequency-modulated radar in which the beat frequency obtained by heterodyning the received signal with a local oscillation frequency-modulated in the same manner as the transmitted signal is analysied by applying it in parallel to a plurality of differentlytuned wide band-pass filters BF1, BF2 . . . Fig. 1. According to the present invention the signal noise ratio of such a system is improved by additionally modulating the frequency of the transmitted signal to a comparatively small modulation depth by an auxiliary sinusoidal oscillation of stable frequency q greater than the sawtooth frequency, the output from each beat frequency filter BF being applied to an indicator A via a frequency demodulator FD and a filter FH tuned to the frequency q and having a very narrow pass band, e.g. 1 c/s. As shown in Fig. 2 oscillation of frequency p and W m  are frequently modulated in modulation FM1 and FM2 by sawtooth and sinusoidal oscillators ZG and GH respectively, the resultant signals, Figs. 2a and 2b, being heterodyned in a mixer Ml to give a resultant sum signal Fig. 2c which is heterodyned in a mixer M2 with a fixed frequency W_ from an oscillator DG. The sum output from the mixer M2 is applied to the transmitting aerial ZA through a gate P which is opened during the first half of each sawtooth period by a multivibrator MV controlled by the sawtooth oscillator ZG, the frequency variation of the intermittent transmitted signal being indicated by waveform D, Fig. 2d. The signal El, Fig. 2d received after reflection at a target is heterodyned in a mixer M3 with the constant frequency W c  from the oscillator DG and the resultant difference signal E1, Fig. 2e, is heterodyned in a mixer M4 with the sawtooth frequency-modulated output Z, Fig. 2e, from the modulator FM1 giving an intermittent difference signal F1, Fig. 2f, which is applied in parallel to the band-pass filters BF1, BF2 . . . , the mean frequency #1 of the signal F1 being inversely proportional to range. The purpose of the gate p is to minimize overlap between the transmitted signal D, Fig. 2d, and weak signals from distant targets; with such an arrangement a common aerial may be employed for transmitting and receiving.
Patent GB-362467-A (GB)
Title: Improvements in the manufacture and production of emulsions of tars and the like
IPC: C08L95/00
Filed: 1930-07-05
Abstract: Tar, tar oils, petroleum, petroleum asphalt, and the like are emulsified with water by the use of brown coal, either substantially dry (moisture content 3 per cent or less) and finely ground, or in moist state, the mixture with the tars &c. in this case being carried out at elevated temperatures.  The proportions of brown coal employed may be from 0,5 to 30 per cent and upwards, viscous products being obtained with a high content of brown coal.  The mixtures may be directly emulsified by gradual addition of water, the addition of alkali being in many cases unnecessary.  The products are applicable for road-making and as paints.  Examples of the invention are as follow:--(1) 40 parts of ground brown coal (moisture content 2 per cent) are introduced gradually into 300 parts of coal tar at 150 DEG C.  The cooled mixture is emulsified with its own weight of water; (2) the coal tar in (1) is replaced by a mixture of 240 parts of coal tar and 60 parts of petroleum asphalt, maintained at 160 DEG C.ALSO:Tar, tar oils, petroleum, petroleum asphalt and the like are mixed with 0,5-30 per cent and upwards of brown coal either substantially dry (3 per cent or less of moisture) and finely ground, or in moist state, the mixture in this case being made at elevated temperatures.  The mixture is emulsified with water, viscous products being obtained with a high content of brown coal. The products may be used in road-making.  Examples describe the mixing with 40 parts of brown coal of 300 parts of coal tar at 150 DEG  C. or 240 parts of coal-tar and 60 parts of petroleum asphalt at 160 DEG  C. and the emulsification of the mixtures with an equal weight of water.
Patent GB-202321-A (GB)
Title: Improvements in and relating to thermally controlled electric switches
IPC: H01H71/16
Filed: 1923-08-11
Abstract: 202,321. British Thomson - Houston Co., Ltd., (Assignees of Brobst, J. E.). Aug. 11, 1922, [Convention date]. Automatic circuit - breakers; protective arrangements. - In a thermally - operated overload circuit-breaker comprising a m a i n switch maintained closed electromagnetically and a thermally released circuit-breaker, which, on overload, breaks the maintaining-circuit and allows the main switch to fall to the off position, the off movement serves to restore the thermal relay to the closed position and to reset it under the control of the thermal means. In the arrangement shown, for protecting the motor 12, the main switch 11 is brought into the closed position by distant push-button control, and is maintained by alternative connection through the back contacts 18. When the thermal strip 17 bends under the heating action of the coil surrounding it, the contact-arm 13 escapes, and the maintaining circuit of the main switch is broken at the contacts 14, 15. In consequence, the main switch assumes the off position, and in doing so presses a plunger 19 which rotates the arm 13 into the closed and reset position shown. The main switch may be reclosed by momentarily closing the starting push-button. Alternatively, the main switch, located within a casing may be operated by an external handle and maintained electromagnetically, the return movement of the handle acting through a pin and lever to depress the plunger 19 for resetting.
Patent GB-135646-A (GB)
Title: Improvements in and relating to Protractors and Associated Calculating Scales for Laying-off and Calculating Aircraft Courses, Distances and Speeds.
Inventor: ANGUS THOMAS COCHRANE
IPC: G01C21/20
Filed: 1918-12-10
Abstract: 135,646. Angus, T. C. Dec. 10, 1918. Plane-trigonometry calculators. - Relates to a course-setting or calculating instrument for aerial navigation for working out the usual problems involving air speed, ground speed, wind, magnetic and true bearings. The instrument is directly applicable to the chart used and is of transparent or translucent material, and comprises a square base-plate with rough disks g of glass-paper or the like to prevent slipping and carrying a rotatable divided bearing-disk D between guide-pins w engaging a groove in the edge of the disk, two pins being bent over to hold the disk in set position. A scale on the base-plate allows the centre dial to be set for magnetic variation. On a central pivot are mounted a ground-speed and an airspeed arm, the latter being slotted to engage the pivot. A slider c on the ground-speed arm carries on a pivot on the radial edge of the arm, a windarm with a graduated circle for setting wind direction by bringing the requisite reading to a meridian on the chart. Holes are made at the divisions on the wind-arm to take a pin P on the air-arm. A parallel-rule attachment on the side of the base-plate enables the base to be oriented after the centre point has been brought over the. point of departure.