baber/WOPTO huggingface dataset:
Patent GB-734146-A (GB)
Title: Mechanical relay
IPC: G05G19/00
Filed: 1953-04-01
Abstract: 734,146. Spring power-storing mechanism. INSTRUMENTS ET OUTILLAGE SOC. ANON. F.I.O. April 1, 1953 [May 7, 1952], No. 9010/53. Class 10. [Also in Group XXIV] A spring escapement for operating sliding speed-change gears, clutches, dividing heads or machine-tool turrets comprises an output shaft 3 carrying a crankpin 10 operating a device such as described in Specification 734,145, [Group XXIV], and driven, when released by manually or automatically retracting a lock-peg 35, by a spiral spring 1 which is automatically wound-up at the end of each revolution by clutching to the spring, at 8 a continuously driven input shaft 9. The inner end of the spring 1 is fast on the output shaft 3 whilst its outer end is fast to a worm-wheel 5 free on the output shaft 3 and irreversibly meshing a worm, fast, through a shaft 7, with the output member of the disc clutch 8. The latter. is engaged by rightward axial .movement of a collar 25, non- rotatable on the input shaft 9 and applying clutching pressure through a radial pin 31, Fig. 4, and cam lever 29 pivoted at 30 on the shaft. Action, assuming the spring wound-up., is as follows. Qn retraction of the lock-peg 35 the spring 1, reacting on the irreversibly held worm-wheel 5, drives the output shaft 3, which can then be stopped in selected intermediate positions before the end of a revolution by releasing the lock-peg 35 to engage an appropriate one of a series of recesses 39 in the output crankdisc 10. If the output shaft 3 is allowed to complete its revolution before locking, a lobe 42, Fig. 3, on a cam disc 11 having a lost-motion connection 12 with the shaft 3, tilts a lever 15 which, through a cam nose 19, pin 20 and fork 24 engages the clutch 8 to wind up the spring 1. After the output shaft 3 is locked by the look-peg 35, the worm wheel 5 rides ahead, and an arm 34 thereon, through a pin 33, turns the cam 11  also ahead of the shaft 3 to release the lever 15 and hence the clutch 8. The parts are now restored to their initial condition with the spring 1 fully wound-up ready for a subsequent operation.
Patent GB-238264-A (GB)
Title: Improvements relating to table jellies
IPC: A23L21/10
Filed: 1924-04-09
Abstract: 238,264. Clark, H. C. April 9, 1924. Grant of Patent refused. Table jellies.-A table jelly tablet is subdivided into blocks of convenient size for use by cuts running partially through the tablet, so that the blocks can be easily separated. The cuts may be in two sets, parallel and at right angles to the length of the tablet, and may extend about 3/4 through the tablet. They may be made by stamping with knife edges or by rotary cutters, and the two sets are preferably made in succession.
Patent GB-236646-A (GB)
Title: Improved means for obtaining motive power
IPC: F02G3/02
Filed: 1924-04-09
Abstract: 236,646. Barron, A. A. W., and Dale, C. B. Mitcalfe-. April 9, 1924. Drawings to Specification. Pumps, actuating by separate motors. - An engine which supplies a reservoir with products of combustion for starting a Diesel engine drives a fan for supplying scavenging air to the Diesel engine.
Patent GB-805521-A (GB)
Title: Improvements in or relating to apparatus for heating or cooling buildings
IPC: F28D1/053
Filed: 1955-03-28
Abstract: 805,521. Radiators and air convectors for heating or cooling buildings. RUNTE, E. March 28, 1955 [March 29,11954; May 12, 1954; Aug. 12, 1954], No. 9047/55. Classes 64(2) and 64(3) In a radiator 51 for the flow of hot or cold fluid, flat tubes 55, Fig. 6, which interconnect headers 56, are arranged with their edges abutting and the radiator is mounted spaced from a wall or ceiling. A convector 54, also comprising flat abutting tubes 42 and headers 45, Figs. 7, 8, for the flow of hot or cold fluid and bearing corrugated plates 43, may be mounted between the radiator 51 and wall. There is a transverse partition in that radiator header 56 which bears inlet and outlet connections 49. There may be corrugated plates on the wall side of the radiator 51 particularly at its lower portion. In Fig. 4, in place of the convector 54, there is mounted a heatinsulating plate 52 (which may be applied to the rear face of the radiator 51) attached to the wall by a bracket 53. Alternatively, a second radiator 51, Fig. 3 (not shown). may replace the plate 52. The arrangement of Fig. 4 may be located on a ceiling, Fig. 5 (not shown), near its edge.
Patent GB-447257-A (GB)
Title: Improvements in or relating to tools for cleaning furnace-grates, particularly the grates in magazine-furnaces
IPC: F23H15/00
Filed: 1936-03-26
Abstract: 447,257. Tools for cleaning furnace grates. TEORELL, K. H., Riksdagshuset, Stockholm. March 26, 1936, No. 9049. [Class 51 (i)] A tool for cleaning furnace grates comprises a rod-like member 1, Figs. 1 and 2, with longitudinal edges 2, 3 and tapering to a point 4. The rod is provided with a handle 5 and a crank 6 for oscillating it about a longitudinal axis when in use. The rod may be solid or hollow, and of curved or segment - like section. Fig. 4 shows a modified form of tool in which the forward end 1 is in the form of a channel with bevelled ends.
Patent GB-751139-A (GB)
Title: Exhaust gas purifier
IPC: F01N3/04
Filed: 1954-03-29
Abstract: 751,139. Purifying exhaust gas. RUTH, J. P. March 29, 1954, No. 9156/54. Class 7(2) [Also in Group XII] In an engine exhaust-gas purifier, comprising a casing 11 adapted to contain water and including an inner tube 15 upstanding centrally of the casing with its upper end spaced below the casing topplate 13 and communicating through its base via holes 17 with the casing on each side of a partition 16 transversly bisecting the casing at a height less than that of the latter, while baffles 18 depend from the plate 13 to below the top of the partition 16, the baffles being parallel to and spaced from the partition on opposite sides thereof to define end chambers in the upper part of the casing which communicate with a common discharge pipe 20, and a foraminous sheet 26 transversely bridging the casing below the baffles for supporting an intersticed charge of alkaline material 27, such as lime rock about the tube 15, an inlet conduit 31 is provided for the exhaust gases into the casing adjacent the base of the tube 15. Two similar partitions 16 which extend across the width of the casing 11 from diametrically opposed points of the tube exterior reach from the casing base to a point just over half-way up the casing height. Grids 25 are located across the lower part of the casing to support the sheet 26 whilst a further foraminous sheet 28 is retained on top of the rock by clamps 30 and rigid strips 29, the length of this sheet being defined by the baffles 18. The plate 13 carries the inlet conduit 31 that is located within the tube 15 and is spaced from the casing base by webs 32 which overlie the holes 17 to divert the discharge from the tube 31 away from the holes. The water level is beneath the lower edges of the baffles 18. The pipe 20 leads to atmosphere via a venturi through the inner end of which air is drawn to assist in diffusing the gases. In operation, the exhaust gas is discharged from the conduit 31 and rises in the annular space between the latter and tube 15 which space is partly filled with water; the rising gas entrains water and passes out of the top of the tube 15 through the rock 27, which is thereby wetted, around the lower ends of the baffles 18, through the upper chambers and into pipe 20. Due to the interconnection of the upper chambers the device will still function in a tilted position without loss of water.
Patent GB-1248040-A (GB)
Title: Improvements in or relating to retaining ring assemblies
IPC: A44B15/00
Filed: 1968-02-26
Abstract: 1,248,040. Gated rings. FREDERICK WICH & CO. Ltd. and E. SEGER. Feb.14, 1969 [Feb. 26, 1968], No. 9255/68. Heading A4G. A ring 11 e.g. for keys is gapped at 15 with the ends pivotally engaging in end sockets of an end flanged cylindrical closure member 17, 18 rotatably carried by a mounting plate 19 having an extension 21 wrapping round at 22 and retaining the closure member, the gap 15 being exposed when one end is push into its socket against a spring therein. The plate may be secured to a case.
Patent GB-141687-A (GB)
Title: Process and apparatus for ageing spirits and alcoholic liquors
IPC: C12H1/00
Filed: 1920-03-31
Abstract: 141,687. Jarraud, A. April 17, 1919, [Convention date]. Ageing and maturing beverages .-In ageing and maturing spirits and alcoholic liquors by electrolysis, a depolarizing cathode and a current of low intensity are used. The cathode e, Fig. 5, is formed of a carbon electrode surrounded by manganese dioxide and resting upon a mixture of manganese dioxide and carbon contained in a porous pot. The anode a is formed of a non- oxidizable metal such as gold. The electrolysis is effected in presence of the substances which the spirits will extract from oak wood. For this purpose, the spirits are allowed to remain, for some time before treatment, in oak casks, or oak shavings are added to the spirits during treatment when the electrolysis will, owing to cataphoresis, assist the extraction, or the electrolysis may be effected in oak casks between anodes a<1>, Fig. 7, on the outside of the cask and a cathode e inserted through the bung-hole. Pads of moist linen or cotton are placed between the anode and the surface of the cask. The vats and casks are supported on insulators m, m<1> which may be bowls containing a liquid such as vaseline oil.
Patent GB-192320-A (GB)
Title: Improvements in electric fuse wire holders
IPC: H01H85/044
Filed: 1922-03-31
Abstract: 192,320. McGrath, J. March 31, 1922. Fusible cut-outs; bases. -A fuse-wire holder comprises a base 4 of insulating material which carries mertal terminal plates 9, 10 provided with forked metal standards 11, 12, and is formed with a slotted insulating partition 13 between the standards. One end cf the fuse wire 15 is placed in the fork of the standard 11 and is coiled around the standard to lock it in position. The wire is then led through the slot 14 of the partition 13 and is similarly fixed to the other standard 12. A screw-on cover is provided.
Patent GB-610118-A (GB)
Title: Improvements in or relating to multi-vibrators and circuits utilising the same
IPC: H03K3/06
Filed: 1946-03-26
Abstract: 610,118. Thermionic distributers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 26, 1946, No. 9371. Convention date, Dec. 30, 1944. [Class 40 (iii)] [Also in Group XL (c)] In a multivibrator the condensers CH1, CH2 instead of being charged over a path which includes the grid to cathode impedance of valves 5 and 12 are charged over unilaterallyconductive devices, shown as diodes D2 and D4, thus enabling the grids of the valves to be given a negative bias and so to act as Class A amplifiers during their conducting period. Diodes D1 and D3 block the grid to cathode paths during the charging periods. Two oscillators 50, 60 of frequencies f1 and f2 are fed into the cathode circuits of valves 5 and 12 so that the signal voltage across the common load resistor 10 is switched from frequency f1 to f2 at a rate depending on the natural frequency of the multivibrator. Low-pass filters 18, 23 prevent signals amplified in one valve from being fed to the grid of the other valve, thus providing a signal suitable for testing purposes. In a modification, Fig. 5 (not shown), for multiplex signalling, signals from two separate channels are applied across the cathode resistors, the signal elements of the respective channels being time displaced a fraction of the time duration of a signal element; the time at which a valve starts to amplify is determined by applying synchronising pulses to its grid, these pulses recurring at a rate double the frequency of the signal elements and lagging in time by one-quarter of a signal element behind the signal elements of the channel it is designed to amplify. Thus the output of the multivibrator represents the centre portion of each signal element of each of the separate channels. A further modification, Fig. 6, (not shown), uses three separate multivibrators and enables four signal channels to be combined.
Patent GB-363251-A (GB)
Title: Tufting mechanism
IPC: D05C15/08
Filed: 1931-03-27
Abstract: 363,251. Tufting-machines. DEHN, F. B., 103, Kingsway, London.-(Waite Carpet Co. ; 556, Mount Vernon Street, Oshkosh, Wisconsin, U.S.A.) March 27, 1931, No. 9383. [Class 112.] The needle of a tufting-machine has a work feeding movement which forces the thread loops along the curved knife edge 17 to sever them. Moving with the needle is a feed plate 12. To assist in forcing the loops along the knife a finger 18 is rocked over on the up stroke of the needle and the last loop formed is carried with it along the knife. The rocking movement of the finger is adjusted by a slider 23 connected to a rock shaft 38. An adjustable guide 41 ensures the registration of the needle with the knife and a gauge-block 52 raises the fabric A above the threat plate. The presser foot 11 and feed plate 12 are operated as in certain types of Singer sewing machines. Sewing-machine needles.-The needle, Fig. 10, is cut away at 48 to enable the thread loop to pass over the knife.
Patent GB-823629-A (GB)
Title: Improvements relating to starter devices for split-phase electric motors
IPC: H01H61/00
Filed: 1958-03-25
Abstract: 823,629. Control of A.C. motors; electromagnetic relays. GENERAL MOTORS CORPORATION. March 25, 1958 [April 8, 1957], No. 9538/58. Classes 38 (3) and 38 (5). Starting apparatus for a split-phase motor 40 comprises a relay having contacts 64 in series with phase winding 38 and coil 50 in series with main winding 36. A resistor 78 is connected in series with both the motor windings, and a resistor 80 shunts the resistor 78 and the coil 50. The value of the resistor 78 may increase appreciably with temperature; or the resistor 80 may have a negative temperature coefficient, in which case the resistor 78 could be of normal type. In this manner, satisfactory operation of the relay (as determined by the difference between initial current in the coil 50 and the current at full speed) is provided over a wide range of supply voltages. The core 52 for the coil 50 supports hinge-spring 54 carrying armature 56 having a lead weight and felt pad to prevent chattering. The spring contact blade 64 cooperates with fixed contact 44 and stop 70, and is biased to the closed position, whilst the spring 54 is biased to open the contacts, so that attraction of the coil 50 holds the armature away from the blade 64 and allows continuous engagement of the contacts. A stationary overload contact 24 is normally engaged by a contact on a cantilever bi-metal strip 26, the free end of which is connected by toggle spring 32 to a compensating bi-metal strip 34.
Patent GB-790861-A (GB)
Title: Improvements relating to electro-magnetic vibratory apparatus for vibrating moulds for concrete and the like
IPC: B28B1/087
Filed: 1955-04-01
Abstract: 790,861. Vibrating tables for concrete moulds. CARTER, A. C. and PLOWMAN, J. M. March 9, 1956 [April 1, 1955], No. 9583/55. Class 87(2). A vibrating table for concrete or the like moulds has two or more electromagnetic vibrators which apply vibrations to the underside of the table top at two or more points so located that minimum bending moments are applied to the table top. The table top is a rigid unit fabricated from four channel-shaped members 1 reinforced by cross members 2 to each of which is attached an electromagnetic vibrator 20. The table top is resiliently mounted on a rigid framework 17 by cylindrical springs 15, the compression or tension of which is adjustable by varying the diametral force applied by a smaller cylindrical spring 21 and adjustable bolts 19 and nuts 24, 25 so that the frequency of vibration of the table top corresponds closely to that of the vibrators, thus allowing the maximum vibrating energy to be transmitted to the material to be vibrated. The mould is secured to the table top by lipped clamps 4 which are held normally open by springs 7 (not shown) and closed by nuts 6. Specification 788,514 is referred to.
Patent GB-1521633-A (GB)
Title: Method and apparatus for photographically recording three-dimensional models of dental arch profiles
IPC: G03B35/00
Filed: 1977-03-09
Abstract: 1521633 Photographic process and apparatus VICTORIA UNIVERSITY OF MANCHESTER 9 March 1977 [ 10 March 1976] 09645/76 Heading G2X A series of photographs are prepared of a 3-D model of a dental arch profile, the model being rotated between photographs about a point which is 7-23 mm. from the intersection of the intercanine line and mid-sagittal plane of the arch. Occlusal photographs of the upper and lower arches may additionally be taken. The model may be photographed using an apparatus comprising a supporting bench 11, a rotatable platform 16 for supporting the model, and a camera holder 13 which can be moved axially, transversely and vertically.
Patent GB-741747-A (GB)
Title: Improvements relating to separators for evaporators
IPC: B01D1/30
Filed: 1953-04-10
Abstract: <PICT:0741747/III/1> Apparatus for separating liquid droplets from the vapours evolved in an evaporator comprises a vertical, cylindrical vapour-outlet wherein a cylindrical cage containing packing material is mounted for rotation on a shaft which is co-axial with the axis of the cylindrical outlet.  The apparatus is particularly suitable in evaporators wherein the liquid is heated in the form of a film as it flows down the inside wall of a vertical cylinder.  In the Figure the inside wall 7 of the evaporator is surrounded by a heating jacket 9; and the liquid to be evaporated is introduced through pipe 8.  Rotating on a vertical shaft 1. in the vapour-discharge pipe 6, is a grate 3 which carries a cage 4 made of perforated sheet metal or sieve netting.  The cage contains Raschig rings made of glass or ceramic material.  The liquid separated inside the cage is flung outwards onto the wall of pipe 6, where it flows down and is returned to heated wall 7. The droplet-free vapours are discharged through outlet 10.
Patent GB-1506391-A (GB)
Title: Cutting tool
IPC: B23P15/28
Filed: 1975-03-05
Abstract: 1506391 Making cutting tools BRITISH STEEL CORP 5 March 1975 [5 March 1974] 9858/74 Heading B3A A method of producing a cutting tool comprises the steps of forming a screwthread on a circular section rod or bar, splitting the bar into generally sector shaped portions, and mounting a portion so that the screwthread surfaces form cutting edges. In the embodiment described, two arcuate slots such as 111 are spark machined into a circular disc, and a central hole is drilled in the disc so that it can be mounted on a lathe mandrel and screwthreaded. The disc ends are then trimmed, and the disc is split diametrically to form two tools, one of which is shown in Fig. 3. A clearance face 117 is ground on the slit surface, and is reground whenever the tool becomes blunted. The tool is then oil quenched from 810‹ C. and tempered for one hour at 180‹ C. The face 121 of the mounting holder 118, Fig. 5, is gound so that the tool is tilted by an angle γ. The tool axis is inclined to the direction of its motion, and is used with a rake angle of 5 degrees and clearance angle of 5 degrees to produce a roughened surface with lines of chips on a workpiece, one line from each cutting motion and one chip in each line from each screwthread face. The workpiece must be tilted appropriately to produce chips of equal depth of cut.
Patent GB-1352529-A (GB)
Title: Analog-to-digital converter
IPC: H03K7/06
Filed: 1971-04-19
Abstract: 1352529 A/D converters; measuring angles SINGER CO 19 April 1971 [20 July 1970] 9883/71 Heading G4H An A/D converter for providing a 14 bit output at counter 18 indicative of a measured angle # #  comprises a synchro 10 adapted to give A.C. outputs the amplitudes of which are proportional to cos and sin # # , these outputs being modified in digitally controlled circuits under the operation of the output of the counter 18 to produce an error signal which is fed back to the counter to increment or decrement it until it indicates a true value of # # . In use, an estimated value of # #  is set into the counter and the 3 most significant bits m1-m3 indicative of the octant wherein the estimated value lies, are taken to a circuit 20 which comprises a plurality of parallel equi-weighted resistance branches selectively shorted to earth via switching transistors operated by the bits M1-M3 via a gated logic circuit 19, the voltages proportional to sin # #  and cos # #  being effectively multiplied by cos, sin 45 to produce outputs e 1  and e 2 ) at 24, 25 (the signals e 1 , e 2  being either + or - cos or sin # according to the value of bits M1-M3). The voltage at 24 is taken to a similar circuit 21 having non equiweighted branches operated via circuit 19 by the next 3 significant bits of the counter 18 output to produce an output proportional to e 1  tan α where a is the angle represented by these bits and this is added to e 2  at 26, signal e 2  being similarly multiplied at 22 and added at 28 to e 1 . This latter sum is multiplied at 23 by #, being the angle represented by the 8 least significant bits and added at 31 to the former sum applied via line 27. An A.C. error signal whose amplitude is proportional e 1 [#Tanα -1]+e 2 [Tanα+#] is produced at 32. This is multiplied at 33 by a reference signal identical to that used to energize the synchro to produce a D.C. output the amplitude of which is proportional to the error signal and the sign of which is indicative to the direction of the error with respect to the counter setting. This D.C. output is converted at 35 into pulses on lines 36 or 37 to increment or decrement the counter. The cycle continues until #=(α+#) in the appropriate octant. In even numbered octants, the signals e 1 , e 2  are multiplied by tan α<SP>1</SP> = tan (90-α) which is equal to cot α, α<SP>1</SP> being selected by the value of the bit M3 which is "1" in these octants.
Patent GB-260860-A (GB)
Title: Improvements in atomising nozzles
IPC: B05B1/34
Filed: 1926-04-15
Abstract: 260,860. Schlick, G. April 15, 1926. Nozzles for producing whirling sprays.--In a sprayer of the kind in which liquid is admitted tu a whirl chamber through passages tangential thereto, the passages are formed by slits arcuate at the base, the cross section gradually decreasing towards the whirl chamber. Liquid from the pipe 7, Fig. 1, passes through slits tangential to an annular chamber 9 formed between the member 1 and an outer cap 3, and thence by slits 10, Figs. 2 and 4, tangential to the whirl chamber 6. The slits in each case are cut by a circular saw so that the inner walls are curved.
Patent GB-203361-A (GB)
Title: Internal combustion-operated air compressors and steam generators
IPC: F02M25/022
Filed: 1922-04-07
Abstract: 203,361. Dunlop, J. April 7, 1922. Actuating pumps by fluid-pressure motors.-A two-stroke-cycle Diesel engine is formed in one with an air compressor, the engine piston 7 and pump piston 2 being integral. The pump delivers into a chamber 8 surrounding the engine water jacket 1. The air and some water from the jacket are delivered through a pipe 4 into a tubular steam generator 3 which is heated by the engine exhaust. The engine scavenging air is compressed in the crank chamber. The air heater and steam generator may be independent. Reference has been directed by the Comptroller to Specifications 2355/06, and 2184/08, [Class 7, Air and gas engines].