baber/WOPTO huggingface dataset:
Patent GB-700045-A (GB)
Title: Improvements in or relating to a device for producing an intermittent movement, particularly the feeding movement in connection with machine tools
IPC: B23Q5/50
Filed: 1951-11-02
Abstract: 700,045. Planing. MASCHINENFABRIK HEID AKT.-GES. Nov. 2, 1951 [Dec. 1, 1950], No. 25703/51. Class 83 (3) [Also in Groups XXIV and XXXV] The feed-motion shaft of a machine tool is driven from a constantly-rotating motor through an intermittently-energized electromagnetic clutch, the duration of energization of which is determined by an adjustable electronic time-delay relay. As applied to the feed-motion of a planing machine any one of four electromagnetic clutches in a gear-box A may be driven from the motor to provide leftward, rightward, upward and downward movements of the tool, by setting a manual selector switch. The selected clutch is automatically energized, on reversal of the table, and the time-delay relay acts to de-energize the clutch after a predetermined interval, the relay being operated by an electronic valve controlled by the discharge of a condenser through an adjustable resistance. The device may incorporate a tracer C co-operating with a copying template B.
Patent GB-691289-A (GB)
Title: Improvements in or relating to permanent magnet chucks
IPC: B23Q3/154
Filed: 1951-11-07
Abstract: 691,289. Magnetic workholders. BOHLI, J. Nov. 7, 1951, No. 26123/51. Class 60. [Also in Group XXVIII] In a permanent magnet chuck of the kind in which a magnet assembly 3 is moved relatively to a pole-plate 2 to magnetise and demagnetise the latter as required, means is provided to supply lubricant under pressure to distributing means in order to produce a film of lubricant on the sliding surface 33 between the magnet and the pole-plate. The means consists of a reciprocatory pump (see Group XXVIII) connected through a lost-motion device with the magnet assembly and through a rack and pinion (not shown) with a lever for hand reciprocation. To displace the assembly 3, the pump is operated within the limits of the lost-motion device to draw lubricant from the casing 1 of the chuck and to pump it into an air-tight chamber 27 connected by a system of ducts 30 with the surface 33. When the pressure in the chamber 27 reaches a value of, say, 20 atmospheres the assembly is forced away from the pole-plate by the lubricant flowing between them and the pump is given an extended traverse to move the assembly lengthwise of the pole-plate. The lubricant seeps back into the casing which is provided with a device 35 comprising a bellows 36 and a helical spring 37 which tends to keep the pressure in the casing constant. The magnet assembly consists of magnets 4 and iron bars 4a separated by non-magnetic distance bars 5, the whole assembly being held together by bolts and a plate 6 screwed to the iron bars 4a. Where a number of assemblies are provided in chucks of large dimensions, they are connected together by bands 7 screwed to the plates 6. The pole-plate extends to the longitudinal edges of the chuck and consists of iron bars 8 separated by non-magnetic bars. The assembly may be displaced by a two-way hydraulic ram under the control of a change-over valve. A single pump may then be employed to supply the ram and generate the film of lubricant.
Patent GB-519935-A (GB)
Title: Improvements in or relating to internal-combustion engines
IPC: F02B43/00
Filed: 1938-09-07
Abstract: 519,935. Gas and oil engines. JONES, J., and BALMFORD, A. B. Sept. 7, 1938, Nos. 26131/38, 8789/39, and 23441/39. [Class 7 (ii)] An engine using a compression ratio of 12 - 15 to 1 operates with gas alone, or with a mixture of gas and liquid fuel or with liquid fuel alone, without alteration of the compression ratio. When using gas, ignition is effected by a sparking plug or by injection of oil and the cylinder charge which is supplied from a carburetter or through a mixing valve comprising gas, a main air supply and a regulatable supply of auxiliary air. A governor controls the auxiliary air and the gas supply. The combustion chamber is free from pockets and hot-spots and is adequately cooled and if required the piston and exhaust valves may be cooled.
Patent GB-480026-A (GB)
Title: Improvements in and relating to electromagnetic devices
IPC: H01H50/22
Filed: 1936-09-26
Abstract: 480,026. Electromagnetic switches. BRITISH THOMSONHOUSTON CO., Ltd. Sept.26,1936, No. 26164. Convention date, Sept. 26, 1935. [Class 38 (v)] An electromagnetic device particularly applicable to switches and contactors includes two plates 48 between which is mounted an operating electromagnet comprising a winding 17 and two magnetic elements 16 and 18, one stationary and the other movable, the latter operating the switch contacts through two push rods 22 which are supported and guided by the plates 48. The plates 11 and 12 are connected by cross members 13 and 14, a lug being formed on the latter to which are connected by means of screw 19, the magnetic element 16, and spring arms 20 which support the winding 17 on an insulating disc 21. The ends of the winding make connection with terminals 55. The member 18 is secured to two push rods 22 by projections 23 engaging in 'notches 24 in the latter, each push rod being supported and guided by a finger extending from one of the plates and engaging in a slot 25 in the push rod. A plurality of movable contacts 29 are resiliently supported on an operating bar 30, which bar is carried by grooved blocks 32 secured to the upper ends of the push rods 22. Metal strips 41 which carry the fixed contacts and connect these with terminals 53, are fixed between moulded insulating barriers 42, by screws 52, the contact assembly so formed being mounted between the arms 48 fixed to the plates 11 and 12, by rods 47 enclosed in insulating sleeves. When the winding is energized, the member 18, which is biassed downwards by gravity, is drawn up thereby lifting the push rods 22 and the bar 30, and the movable contacts engage with the fixed contacts. Reverse or composite operation may be arranged. Specification 480,094 is referred to. The Specification as open to inspection under Sect. 91 includes a description of a method of using the projections on the moulded insulating barriers which forming the arcing chamber, to support both the fixed and moving contacts, when the switch is made to open with energizing. This subject-matter does not appear in the Specification as accepted.
Patent GB-895054-A (GB)
Title: Change speed and reversing gear for single axle tractors or the like
IPC: F16H3/32
Filed: 1958-08-15
Abstract: 895,054. Change-speed gear. GOHLER, O. Aug. 15, 1958, No. 26268/58. Class 80 (2). [Also in Group XXXI] A single-axle, walk-type tractor has a driving motor and a set of gears including a reverse gear situated in front of the axle 2 and a set of gears for some of the speed changes situated behind the axle, a shaft 3 capable of being coupled with the shaft 5 of the motor by a clutch 4 and having two parts 6, 7 capable of being coupled by a sliding gear 21, and a shaft 24 connected with the axle by bevel gears 28, 29 and provided with a set of sliding gears 25, 26. First and second gear are obtained by connecting the parts 6, 7 through gears 14, 19 and 20, 21 and sliding the gears 25, 26 for engagement with the gear 15 or 16 while third and fourth gear are obtained by again sliding the gears 25, 26 after the gear 21 has been brought into engagement with keyways 23 to couple the parts 6, 7 direct. The sliding gear 25, 26 also provides a two-speed reverse-drive when rotation of the part 7 is reversed by engagement of the gear 19 with an intermediate gear 34 driven by a gear 13 on the part 6. An additional step-down gear (not shown) may be connected to the shafts 7 and 24 by the couplings 32 and 33 and be provided with a coupling for power take-off.
Patent GB-750102-A (GB)
Title: An improved method of producing diaphragms in subsoil excavations
IPC: E21D1/10
Filed: 1953-09-24
Abstract: 750,102. Stabilizing soil. I.C.O.S. IMPRESA COSTRUZIONI OPERE SPECIALIZZATE. Sept. 24, 1953 [Nov. 18, 1952], No. 26370/53. Classes 68(1) and 68(2) An excavation is made, particularly one reaching great depths, by drilling into the ground by means of a drilling tool 2, Fig. 1, and introducing into the excavation as it is drilled, a thickish liquid apt to gel under repeated action of the rotary drill bit, the wall of the excavation thus drilled being consolidated and rendered impervious to water and the liquid being caused to circulate in the excavation from the bottom to the top so as to remove material loosened by the drilling tool. As shown the excavation is made in a series of elements 1 which are twice as wide as the diameter of the drilling tool 2. The tool 2 may penetrate the ground to a certain depth and then advance along the length of element 1, Fig. 2, so as to remove layer S1. Further layers S2, S3, S4. &c. are subsequently removed. In a modification drilling is commenced in a vertical direction and gradually advanced to the adjacent vertical sections the depth in each case being slightly less so as to form a series of steps. The tool 2 may be a rotary displaceable drill bit or a hollow chisel and the thickish liquid, a colloidal thyxotrope sludge, is caused to circulate therethrough to form the sealing coating 3. The colloidal sludge may be solidified by chemical or physical .means or a combined process. The excavation may be filled with concrete, gravel injected with mixed concrete or in the case of a drainage member gravel alone, in the latter case the gravel being preferably enclosed in a previous net-like clothing and the walls being washed out in order to remove the sealing layer.
Patent GB-190833-A (GB)
Title: Improvements relating to mechanical riddles for foundries
IPC: B22C5/06
Filed: 1921-10-07
Abstract: 190,833. O'Keefe, W. M., (trading as Adaptable Moulding Machine Co.), and James, A. Oct. 7, 1921. Treating mould and core materials. - Two ordinary circular riddles f, Fig. 3, for foundry sand are carried by frames e oscillated in a horizontal plane, relative to a rigid support b, Fig. 2, as by a connecting-rod h, which may have a slotted end, crank g, gearing in a box i, belt l, and electric motor k. The riddles may be at different levels and the sand from one mav be led by a shoot to the other.
Patent GB-1478262-A (GB)
Title: Prostadienoic acid derivatives
IPC: C07C401/00
Filed: 1975-06-23
Abstract: 1478262 Prostaglandins ROUSSEL UCLAF 23 June 1975 [21 June 1974] 26591/75 Heading C2C The invention comprises a process for the preparation of prostaglandins of the Formula I wherein R is H or C 1-4  alkyl, R 1  is C 2-4  alkenyl which contains a group of the formula m is 3, 4 or 5 and n is 2, 3 or 4, by catalytically hydrogenating compounds of the above Formula I in which R 1  is C 2-4  alkynyl and the compounds methyl (5Z, 8RS, 12RS, 13E, 15SR) 15- hydroxy - 9 - oxo - 15 - vinyl - 5,13 - prostadienoate and methyl (5Z 8RS, 12RS, 13E, 15RS) 15 - hydroxy - 9 - oxo - 15 - vinyl - 5,13- prostadienoate. Pharmaceutical compositions, suitable for oral, parenteral, rectal or topical administration, contain the above named compounds together with pharmaceutical carriers or excipients. The compounds have hypotensive and anti-broncho-constrictive activities and stimulate contraction of the smooth muscles.
Patent GB-266545-A (GB)
Abstract: 266,545. Lambert, W. R., (Walters, G.). March 19, 1926. External spark-gaps; testing and indicating: preventing unauthorized starting.-Current is distributed to contacts 4, each provided with two terminals 6, 7. The terminals 6 are separated by gaps from terminals 6<1> connected to the sparking plugs. Spark gaps, in shunt with the sparking plugs, are also formed between the terminals 7, 7<1>, and may be connected to earth simultaneously by a member 12, the position of which is controlled by a lock and key. Unauthorized starting of the engine may thus be prevented by short-circuiting the plugs. The latter may be short-circuited individually by spring-pressed plungers 14.
Patent GB-324045-A (GB)
Title: Means for preventing removal of keys from locks
IPC: E05B13/00
Filed: 1928-09-14
Abstract: 324,045. Tompa, I. Sept. 14, 1928. Keyholes, obstructing.-Turning and expulsion of a key c from a lock from outside the door a is prevented by insertion in the narrow part of the keyhole of a device having resilient arms n, n<1>, Figs. 1 and 4, urged apart by a spring r surrounding a pin passing loosely through the arms which have teeth g, g<1> to retain the device in place by engaging the edges of the keyhole, or by a toothed plate t, Fig. 7, which is inserted in a vertical plane and then rotated to horizontal position to engage teeth g, g<1> with the edges of the keyhole. In each form a projecting pin f is provided to extend into the path of the key-bit d', Fig. 1, to prevent rotation of the key, the pin being loosely jointed to the device to allow it to adjust itself to the openings in the lock as it is being inserted.
Patent GB-1255409-A (GB)
Title: Oxy-fuel accelerated glass melting
Inventor: SHEPHERD THOMAS L
IPC: C03B5/235
Filed: 1969-05-27
Abstract: 1,255,409. Glass melting furnaces; burners. AIR REDUCTION CO. Inc. 27 May, 1969 [5 June, 1968], No. 26670/69. Headings F4B and F4T. [Also in Division C1] A reverberatory glass-melting furnace comprises a chamber having a refractory crown 13 adapted to direct radiant energy into the glass 16, at least one air-fuel burner 15, and at least one oxy-fuel burner 20 positioned above the glass but below burners 15 and directed to slope downwardly towards the glass surface, so that combustion products from a substantially non-luminous flame from burners 20 sweep across the glass surface in substantially the same direction along the chamber length, heat being transferred to the glass largely by convection. Preferably burners 20 are at about 18¢ degrees to the horizontal, and the combustion products contact the glass surface at 1/3to 1/2 of the length of the chamber from the in-feed end.  Each burner 20 comprises a housing 30 in which are provided spaced jet outlets 38 from which O 2  streams are discharged, and spaced other jets 39 from which gaseous fuel is discharged, the outlets of jets 39 being dispersed among the outlets of said O 3  jets 38 at plate 42; and a chamber 56 into which the jets discharge, intermingle and burn to give a non-luminous flame; O 2  and fuel being provided at pressures giving jet velocities of 3000-3500 feet per second, and at such rate as to give a flame temperature of 4000-5000‹ F. Housing 30 comprises two portions divided by partition 42. O 2  is supplied via 50 into the rearward portion and passes out via long tubes 38; gaseous fuel is supplied via 52 into the forward portion and passes out into chamber 56 by short tubes 39. If liquid fuel is used, this may be supplied to chamber 56 through tube 76. Chamber 56 may be of stainless steel, and may be cooled with water supplied at 66 and discharged at 68.
Patent GB-862679-A (GB)
Title: Drill bit
Inventor: BOICE ELVIN GORDON
IPC: E21B10/16
Filed: 1958-08-19
Abstract: 862,679. Earth boring collar drill bits. REED ROLLER BIT CO. Aug. 19,1958, No. 26681/58. Class 85. A collar drill bit 9 for earth boring has a radially extended circumferential portion 14 arranged to cut a karf 18 at the junction of the well B and the bottom A of the bore.
Patent GB-1382204-A (GB)
Title: Derivatives of beta-phenoxyethanols
IPC: C07C239/00
Filed: 1973-06-05
Abstract: 1382204 Carbamates derived from #-phenoxy ethanol NIPPON SHINYAKU CO Ltd 5 June 1973 [5 July 1972] 26688/73 Heading C2C The invention comprises novel carbamates of the general Formula I wherein R represents H or CH 3 , X 2  represents H, Cl or Br and X, represents H, Cl, CH 3 , tertbutyl, OCH 3 , CF 3 , CHO, CH 2 OH, CH 2 OCOCH 3  or -CH 2 -N-CH 2 -CH-CH 3 . | | CH 3  CH 3  The compounds of Formula I in which X 1  represents H, Cl, CH 3 , tert-butyl, OCH 3 , CF 3 , -CHO or may be prepared by reacting a #-phenoxyethanol of formula II  with a phenyl isocyanate of Formula III Compounds of Formula I in which X 1  is CH 2 OH may be prepared by reacting a compound of Formula][ in which X 1  is -CHO with sodium borohydride in a polar solvent. Compounds of Formula I in which X 1  is -CH 2 OCOCH 3  may be prepared by reacting a compound of Formula I in which X 1  is CH 2 OH with acetic anhydride. The compounds of Formula I are useful as agents for the treatment of arteriosclerosis.
Patent GB-200471-A (GB)
Title: Improvements in electric condensers
Filed: 1922-10-03
Abstract: 200,471. Kramolin, L. von. July 10, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Condensers.-The capacity of a condenser is varied by bending one or more flexible ccatings, the condenser being provided with at least one rigid coating. As shown, the rigid coating is in the form of a cylinder a. around which is partly wound the flexible coating in the form of a thin metal band b. One end of the band is wound around a roller c carried by a lever e, a string f connected to a spring d being wound around the roller in the reverse direction. On rotating the lever e, the band a is wound upon, or unwound from, the roller c to the same extent as the string f is unwound or wound, so that the tension of the spring remains constant. A thin insulating layer, which may be in the form of a spirally-wound thread cf quartz, is provided on the surface of the cylinder a. The width of the band b may be uniform or variable.
Patent GB-956202-A (GB)
Title: Improvements in or relating to bearings
Inventor: LITSKY LEONARD ARNOLD
IPC: F16C23/04
Filed: 1962-07-11
Abstract: 956,202. Bearings. FAFNIR BEARING CO. July 11, 1962, No. 26747/62. Heading F2A. [Also in Division B3] A bearing comprises an outer ring having a linear material bonded to its inner surface by a metallic bonding medium and an inner ring adapted to be positioned movably within the liner-material. The outer ring 10 is coated with a metallic material such as solder on its inside surface and a liner, which is subsequently bonded to the ring 10, consists of an anti. friction fabric material such as nylon, "Dacron," " Teflon," " Kel-F " or " Fluorothene " (Registered Trade Marks), and has a metallic thread such as copper woven on one surface 13 and a second metallic thread woven in the warp to provide electrical conductivity through the liner. The liner is bonded to the outer ring by applying heat and pressure, the inner ring 15 then being placed within the liner, and the outer ring and liner swaged around it, as shown in Figs. 3 and 4. The inner ring 15 has a part spherical surface to make the bearing selfaligning. In another embodiment, Fig. 8, the liner is preshaped, and a cylindrical outer ring 21, after the bonding process, is wired at 23 to the shape shown. Specification 956,201 is referred to.
Patent GB-686719-A (GB)
Title: Improvements in toy musical instruments
IPC: A63H5/00
Filed: 1950-11-02
Abstract: 686,719. Musical instruments. ZIMMERMAN, H. Nov. 2, 1950, No. 26791/50. Class 88 (ii) [Also in Group XV] Sonorous bars 59 in a toy musical instrument are struck by a rotatable striker. The striker comprises two rings 58 linked to a frame 51 on a shaft 55. The striker is driven by gearing only when a plunger 47 is depressed, a'pinion 53 in the gear train being engaged by a rack on the plunger. The plunger is biased upwards by a spring 49 and the shaft carrying the pinion 53 is journaled. in vertical slots so that the gear train is broken and the striker is allowed to freewheel during the upward motion of the plunger. The striking mechanism is carried by a block 45 which slides in a slot in the casing of the instrument so that the striker may engage any one of the bars. Cushioning layers 63, 64 are provided on the nails holding the bars.
Patent GB-662617-A (GB)
Title: Brassieres
IPC: A41C3/00
Filed: 1949-10-19
Abstract: 662,617. Brassieres. AMYOT, P. Oct. 19, 1949, No. 26893/49. Class 141. A brassiere comprises breast pockets secured together at their inner edges and secured along their lower edges to a band 6 of tubular elastic material in an inverted-V formation, stiffening members 14 being provided at the central part of the band to provide diaphragm control whilst the outer ends of the band are extensible. The band is preferably formed in two sections 10 the inner edges of which are secured to an inelastic strap 11. Faggot stitching 12 may join the band to the breast pockets 5.
Patent GB-519121-A (GB)
Title: Improvements in or relating to machines for digging potatoes or the like
IPC: A01D19/16
Filed: 1938-09-15
Abstract: 519,121. Potato diggers. SMITH, A. E., and BLACKSTONE & CO., Ltd. Sept. 15, 1938, No. 26967. CClass 6 (iii)] A share 8, a main spinner 11 and an auxiliary spinner 13 are all carried by a frame 7 rigidly fixed to a cross shaft 1 at the rear of a tractor and the spinners are driven from a power shaft 15 on the tractor. The shaft 1 is supported by draw bars 2 pivoted at their ends 3, so that the height of the digger can be adjusted by means of linkwork 5, 6. The shaft 15 is connected by a universal joint 16, telescopic shaft 17 and universal joint 18 to a longitudinal shaft 19 carrying a worm 20. The worm 20 engages a worm-wheel 21 on a cross-shaft 22 carrying a sprocket-wheel 23. The wheel 23 is connected by a chain 27 with a sprocket-wheel 28 on a shaft 29 which drives the main spinner 11 and an auxiliary spinner 13 by means of bevel-gears 32, 33. The wheel 23 is connected to the shaft 22 by a clutch, which allows the device to slip if the spinners meet obstacles. The wheel 28 is connected to the shaft 29 by a one-way clutch which allows the spinners to over-run the power shaft, so that shock is avoided when the power is shut off.
Patent GB-1330570-A (GB)
Title: Capacitor
IPC: H01G9/012
Filed: 1971-04-19
Abstract: 1330570 Electrolytic capacitors UNION CARBIDE CORP 19 April 1971 [15 April 1970] 26987/71 Heading HIM The anode riser 37 extending from the sintered anode 36 of a solid electrolytic capacitor is connected to anode lead 53 through a deformably arranged connecting wire 54 welded to the riser and lead. When the capacitor is located in a mould cavity (Figs. 1, 2, 3, 6, 7, not shown) for encapsulation by forcing anode and cathode leads 53, 45 into slots therein, the resilience of wire 54 prevents any strain on the junction between anode riser and anode, and the leads extending from the encapsulated capacitor are accurately axially aligned. End 56 of lead 53 may be bent transversely to increase pull-out strength. Wire 54 and lead 53 are preferably nickel.