baber/WOPTO huggingface dataset:
Patent GB-615372-A (GB)
Title: Improvements relating to electric current converters employing vibratory contacts
IPC: H02M1/28
Filed: 1946-08-02
Abstract: 615,372. Converting. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 2, 1946, No. 23130. Convention date, Feb. 23, 1944. Drawings to Specification. [Class 38 (ii)] In vibratory contact apparatus for converting, in order to operate the vibratory member at one half the frequency of the alternating current, the contact member operates between two contacts electrically connected together and to the same circuit terminal.
Patent GB-202845-A (GB)
Title: Improvements in and relating to alternating current and continuous current converters
IPC: H02M1/28
Filed: 1922-08-25
Abstract: 202,845. Blaser, K. F., and Blaser, E. Aug. 25, 1922. Commutator switching-arrangements.-In an arrangement for converting alternating current into direct current, or vice versa, two contact points b, c, Fig. 1, through which the half-waves of the alternating current pass alternately, and a self-induction e are momentarily connected in a closed circuit with a source of direct-current voltage when the contacts are changed over, in order to avoid sparking. The contact c is mounted on the polarized armature, a of an electromagnet f in the alternating-current circuit, the contact b being fixed. Both contacts cooperate with a spring-mounted contact-member d as shown. During one half-wave of the alternating current the armature a is attracted, and the current flows through the contact c and accumulator s<1>; during the next halt-wave the armature is repelled, and the current passes through the accumulator s<2> to the contact b. By reversing the connections of the electromagnet f, or reversing the polarity of the armature, the accumulators can be discharged, into the alternating-current circuit. In a modification, a set of contacts is provided on both sides cf the electromagnet f, and both half-waves of the alternating current are directed through a single accumulator. Another arrangement in which a double set of contacts is provided is shown in Fig. 3. In this arrangement the double contacts d, d' are connected to the direct-current side, and choking coils e, e<1> are provided on the alternating-current side. The armatures may be polarized by a winding fed with direct current from the accumulator.
Patent GB-321678-A (GB)
Title: Improvements in or relating to means for dissipating the heat generated by electrical apparatus immersed in liquid within a casing
IPC: H01F27/12
Filed: 1928-08-11
Abstract: 321,678. British Electric Transformer Co., Ltd., and Thompson, J. L. Aug. 11, 1928. Indicating flow of liquids.-The open or closed position of a flap valve 10 is indicated by a flap 11 suspended in the liquid flow conduit 10<c> from a diaphragm 11<a> provided with an external pointer.
Patent GB-1044382-A (GB)
Title: Counter apparatus
IPC: G06M3/02
Filed: 1963-06-11
Abstract: 1,044,382. Counting-apparatus. ROCKWELL MANUFACTURING CO. June 11, 1963 [March 4, 1963], No. 23188/63. Heading G4D. In a reversing pre-set counter transfer mechanism from the second and higher order denominations is conditioned for operation but is not operated until transfer is effected from the lowest order denomination. A number, for example of gallons of fuel to be dispensed, is set up on numeral wheels 16 by repeated operation of the associated pushbuttons 19 and slides 18. A projection 73a on slide 18 cams away transfer mechanism 64b, Fig. 9, while a pawl 67 advances a ratchetwheel 66 secured to the numeral wheel. Numeral wheel alignment. Before dispensing begins a knob 21, Figs. 1, 11, is repeatedly operated. A fork 97 grips a knurled nut 33 to prevent displacement of the drive shaft while a pawl 82 drives the units wheel to zero position. When the pawl 82 engages a long tooth 84 the drive becomes ineffective. In the dispensing operation the drive shaft 14 drives the units wheel in reverse through gears 45, 47 and an over-running clutch 48, 49, Fig. 7. As the units wheel passes from 0 to 9, in the reverse direction, a roller 54 rocks arm 55 clockwise whereby a transfer pawl 64 steps the tens wheel in reverse direction, Fig. 8. For the tens and higher orders if a pawl 64 falls into a deep notch on a cam 65 the associated transfer mechanism is conditioned for operation. The turned-over ends 64a of the pawls 64 overlap in descending order so that when the next transfer from units to tens takes place transfer from tens to hundreds is also effected if the necessary conditioning has been effected, and so on for higher orders. When all the numeral wheels reach zero position control cams 100 allow plate 102 to pivot clockwise to operate switch 24.
Patent GB-1396648-A (GB)
Title: Chaff cutter
IPC: A01F29/06
Filed: 1973-05-16
Abstract: 1396648 Cutting-machines MASCHINENFABRIK FAHR AG GOTMADINGEN 16 May 1973 [20 May 1972] 23211/73 Heading A4C In a chaff cutter, the housing 1 has a section 7 pivoted to the housing 1 at 8 and is non-yieldably adjustable by setting screws 9 to provide an adjustable discharge gap. The cutting blades, of which one only is shown at 4, are mounted by arms upon an axle 5 rotatable within the housing 1. The sides of the housing 1 and the sides of section 7 overlap and are respectively connected by screws 9.
Patent GB-1269798-A (GB)
Title: Ketoperoxy compounds
IPC: C08F4/34
Filed: 1969-05-07
Abstract: 1,269,798. Ketoperoxy compounds. PENNWALT CORP. 7 May, 1969 [7 May, 1968], No. 23259/69. Heading C2C. [Also in Division C3] Keto-peroxy compounds of the formula where m and n are each 0, 1 or 2, m+n=2; Z is a biradical selected from Q, Q-OO-Q, Q is the radical where said t-carbon atom is joined to a peroxy oxygen; R 1 , - R 2 - and R 4  are aliphatic, cycloaliphatic or aryl radical, with the proviso that, in the group Q, R 1  and R 2  are not both aryl; R 3  is an aliphatic or cycloaliphatic radical affording a t-carbon atom which is joined to a peroxy oxygen atom; R 5  is a bivalent aliphatic or cycloaliphatic radical affording t-carbon atoms which are joined to different peroxy groups of the group (-OO-R 5 -OO-); R 6  is a bivalent aliphatic radical, p is 1 or 2, q is an integer of 1 to 4, with the provisos that: (i) when m is zero, Z contains at least one peroxy (-OO-) group; (ii) when n is zero, Z contains at least one keto group; (iii) compounds of Formula I have at least one Q group positioned so that there is a keto group in a beta-position to the t-carbon atom therein; (iv) compounds of Formula II are single or fused double ring compounds containing 4-10 ring C atoms; (v) when p is 2 both keto groups in Formula II are attached to CH 2  groups and to ring t-carbon atoms carrying peroxy groups, are prepared by reacting an α,#-unsaturated ketone with a hydroperoxide having a tertiary carbon atom linked to a peroxy oxygen atom, in the presence of a strongly acid catalyst, e.g. sulphuric acid. Amongst numerous compounds prepared in the examples are 2-methyl-2-(t-amyl-peroxy)-4- pentanone, 2,6 - dimethyl - 2,6 - bis - (t - butyl peroxy) - 4 - heptanone and 2,15 - dioxo- 4,4,7,7,10,10,13,13-octamethyl-5,6,11, 12-tetraoxa-8-hexadecyne.
Patent GB-1300022-A (GB)
Title: Gang lawn mower with self-sharpening means
Inventor: AKGULIAN SAHAG G
IPC: A01D34/43
Filed: 1971-04-19
Abstract: 1300022 Gang lawn mower JACOBSEN MFG CO 19 April 1971 [9 April 1970] 23261/  71 Heading A1F The subject-matter of this Specification is identical with that described in Specification 1300021, but the claims are concerned with a drive train including a drive reversing mechanism for sharpening the mowers by rotating the reels 67 in the direction reverse to the direction of cutting.
Patent GB-189545-A (GB)
Title: Improvements in or relating to machines for counting or counting and marking paper-money, paper forms and the like
IPC: G06M7/06
Filed: 1921-09-01
Abstract: 189,545. Frost, F. R. Sept. 1, 1921. Sheet separators and forwarders; pile tables; guides.-Sheets of paper such as currency notes are fed forward individually from a pile and are counted and may also be marked as with a date or serial number. The pile is supported between adjustable walls 5 and pressed by a removable weight 11 against a rubber conveyer belt 10 provided with a roughened surface except down the centre. A rubber wiping-finger 25 is disposed above the plain portion of the belt and is pressed against it by an adjustable spring 26. A second belt 19 receives the notes from the first and is driven at a higher speed so as to space them. Metal plates 29, 34 rest or are depressed upon the notes as they pass along and thus maintain them flattened out. The notes are counted by individually engaging the depending spring-controlled counter arm 24 projecting below the belt 19 which may be in two separated portions.
Patent GB-1176447-A (GB)
Title: Reversible Driving Means Especially for Automatic Tuning Means
Inventor: FUJII YASUO
IPC: F16H3/00
Filed: 1968-05-16
Abstract: 1,176,447. Reversing gears. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 16 May, 1968, No. 23316/68. Heading F2D. [Also in Division H3] A reversing drive comprises two gears on shafts at right-angles to one another, one gear being axially displaceable to engage the other at either side thereof, an output being taken from the one gear via a third. Such a drive is described for the tuning elements of a portable radio receiver driven by a clockwork motor, where the tuning range is scanned continuously and automatically reversed at each end of the traverse, until a signal is received. In Fig. 1, a clockwork motor 16 drives a crown wheel 18 through a slipping clutch comprising a spring (20 in Fig. 3, not shown). The speed of the motor is limited by an air-vane 21 driven through gearing 24, and the motor is allowed to turn only when an electrically releasable stop 23 is displaced. Another gear 31 is in two parts, one of which engages the crown-wheel 18 depending on axial displacement of the shaft 32 of the gear 31. A tuning capacitor 36 is driven by gear 34 which meshes with gear 31, the direction of drive being reversed by axial movement of shaft 32. This is effected by 4 pins 78, 80 on the gear 34 which after a certain angular movement knock against a pin 68 on a T-shaped lever 40. The latter is then displaced about its pivot bracket 41 and a further pin 44 shifts the gears 31 up or down. The lever 40 is biased to one extreme position or the other by an over-centre spring (Fig. 6, not shown). The direction of drive of the gear 34 can be reversed manually at any point in the traverse by pressing down the top edge of a spring- loaded plate 51 or 53. These plates have slots (Fig. 7, not shown) which engage pins 56, 58 on the ends of the cross-arm of the lever 40 to shift the latter to its other position. The tuning element can be rotated manually by a finger-wheel 84 integral with a pulley 85 through which a cord operates an indicator (not shown). Motion of the wheel 84 is conveyed to shaft 32 and vice versa by meshing gears 82, 83, the clutch (20) slipping when necessary. The bearing materials at the ends of shaft .32 should have a coefficient of friction less than 0.10. Graphite is suitable, as also polyacetal, polyamide, polyolefine and fluorocarbon resins.
Patent GB-754987-A (GB)
Title: Surface support structure
IPC: E04B1/34
Filed: 1954-08-11
Abstract: 754,987. Roofs. MACULAN, R. Aug. 11, 1954 [Aug. 12, 1953], No. 23345/54. Class 20(4). A roof or like surface support structure of tensioned wires, comprises high -grade steel wires, or cables or ropes of natural or synthetic fibres of high tensile strength, stretched between stayed abutments exclusively in the longitudinal direction of the surface with a tension of at least 2,000 kgs. /sq. cm., the wires being guided loosely over any support struts which may be situated between the abutments. As shown in Fig. 1, the wires 3 are individually stretched between two end trusses 1 and pass over ridge purlins 2, the structure being then covered by light metal sheet in the form of plates or strips. As shown in Fig. 2, in a form suitable for platform roofs, a continuous beam 5 connects the heads of substantially T-shaped uprights 4, to wires 3 being drawn together from the last uprights to the ends of the beam 5 which is used as an abutment for tensioning the wires. To prevent the wires 3 oscillating between the trusses 1 or uprights 4, each wire may be underbraced at the centre of each bay by other wires in the direction of natural sag. The wires 3 may be tensioned by screw connections or by weights, such as the weight of a part of the building or any other known means. The covering of the roof may be corrugated or profiled plates, rigid slabs or flexible materials such as tenting or rubber mats, which are selfsupporting over the span between wires or the wires may be used as boarding supports and concrete poured onto the boarding. Two or more wires may be pre-stressed in place of the single wires at intervals to provide a preferred construction for securing the roof covering. The wires may also be embedded in, or wholly or partially surrounded by, concrete. Sheet metal holders running in the same direction as the wires, may be secured to two wires by flanged portions, the lower end of the holders having support folds for insulating or lining plates and the roof covering being applied to the upper sides of the flanged portions. The holders replace additional lathing and cannot be deranged or distorted.
Patent GB-584051-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J19/36
Filed: 1944-11-23
Abstract: 584,051. Discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd., and WADE, A. S. Nov. 23, 1944, No. 23379. [Class 39 (i)] A metal electrode for an electron discharge tube on forming part of the envelope thereof, has cooling members of gauze brazed or soldered to the external surface of the electrode. A tubular electrode 1 has closely-spaced parallel annular sheets 8 of wire gauze metallically attached as shown in Fig. 7 or a flat anode 4 has a strip of wire gauze wound into a spiral 9 and attached to the back of the anode along the whole length of one edge as shown in Fig. 9. The gauze may be wound in several interleaved spirals as in Fig. 10 (not shown), and cooling fluid may be forced through the gauze sheets. The gauze is preferably of copper and' its effectiveness may be increased by soldering the wires of the mesh to improve the thermal contact.
Patent GB-1359927-A (GB)
Title: Apparatus for moving magnetic heads
IPC: G11B5/54
Filed: 1972-05-18
Abstract: 1359927 Raising/lowering magnetic heads SOC INDUSTRIELLE HONEYWELL BULL 18 May 1972 [25 May 1971] 23518/72 Heading G5R In a magnetic head raising/lowering system wherein a plurality of spindles are rotatable to control the positions of a corresponding plurality of heads, the spindles are interlinked so that the heads are raised/lowered in unison. In the arrangement described, the rotation of a cam disc (5, Fig. 1, not shown) bearing a ramp 6 causes a follower 7 to be elevated, and an arm 8 and a spindle 12 to be rotated. Engagement surfaces 29, 30, 33, 34, 31, 32 on arm 8 and further arms 9, 10, 11 then co-operate to cause further spindles 13, 14, 15 to rotate as indicated, and as a result pressure is simultaneously applied by the ends 21-24, Fig. 3, of four helical springs (17-20, Fig. 1) to cause four heads 25 to move in unison towards a record 28.
Patent GB-690166-A (GB)
Title: Improvements in or relating to the steering of mobile cranes or other vehicles supported on wheels
Inventor: BRISTOW GEORGE GRAY
IPC: B62D7/02
Filed: 1949-09-13
Abstract: 690,166. Control of two motors. RANSOMES & RAPIER, Ltd., BRISTOW, G. G., and STOKES, A. S. Dec. 12, 1950 [Sept. 13, 1949], No. 23605/49. Class 38 (iii) [Also in Groups XXXI, XXXIV and XXXVI] Relates to a motor vehicle (see Group XXXI) having steerable and driving wheels 5, the wheels being separately driven by electric motors (not shown) through gearing 10. The motors are connected in parallel and are controlled through separate carbon pile resistances (see Group XXXVI) within a casing 16 by a hand wheel, 15 which also deflects the wheels 5 about a pillar 1 so that a differential torque is applied to the wheels to enhance the steering. Slip rings 32, 33, 34 are mounted on a shaft 23 with the resistances connected between them using one common lead.
Patent GB-1159883-A (GB)
Title: Material Feed Apparatus for a Machine
IPC: B21D43/09
Filed: 1967-05-22
Abstract: 1,159,883. Metal strip feeds. MAGNETIC METALS CO. 22 May, 1967 [24 May, 1966], No. 23609/67. Heading B3W. [Also in Divisions B8 and F2] A metal strip feed apparatus comprises a pair of feed rollers which are driven intermittently from a power take-off shaft of the press to which the feed mechanism is attached, through a Geneva-cam mechanism which converts the continuous rotation of the input shaft 110 keyed to the power take-off shaft into intermittent rotation of the output shaft 111 which drives the feed rollers. The apparatus is identical with the apparatus described in Patent No. 1,097,480, except that the gear train described in that Patent is replaced by the Geneva-cam mechanism. The Geneva-cam mechanism comprises a cam member 115 mounted on the input shaft 110 which drives a gear member 116 by co-operation of a drive element 121 on the cam member with grooves 122 on the gear member to rotate the output shaft 111 and co-operation of curved surface (119), Fig. 5 (not shown), with the surface 120 prevents rotation of the output shaft to provide a dwell. The amount of strip feed may be varied by altering the diameter of the feed rollers, or the sprokets (27), (28), Fig. 1 (not shown), or by a variable speed drive between the Geneva-cam mechanism and the feed roller. It is preferable that the punch grips the strip before the pressure of the feed rollers is released although in this embodiment this is not essential because pins may be provided on the die to register with the positioning holes on the strip. The rollers are released by a push rod (21), Fig. 1 (not shown), operated by a cam on the power take-off shaft or the shaft 110. The push rod (21) is connected to the rollers by a linkage (19), (22), (23).
Patent GB-834330-A (GB)
Title: Improvements relating to the dynamic braking of induction motors
Inventor: CHOUDHURY SHAFI-UDDIN AHMED
IPC: H02P25/20
Filed: 1957-07-25
Abstract: 834,330. Control of A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. July 18, 1958 [July 25, 1957], No. 23623/57. Class 38 (3). An induction motor is decelerated by opening contactor 4 to disconnect a high-speed winding 1 and then closing contactor 5 to energize a low-speed winding 2. The contactor 5 has additional contacts 6 which close simultaneously with or before the closure of the other contacts of the contactor to connect capacitors 7 across the terminals of the high-speed winding 1. A braking effect is thereby produced since the high-speed winding is self-excited with lowfrequency currents. In another arrangement, the additional contacts are provided on the contactor 4 and are adapted to connect each of three capacitors across appropriate pairs of phases of the high-speed winding.
Patent GB-1304809-A (GB)
IPC: B21B37/26
Filed: 1971-04-19
Abstract: 1304809 Rolling NIPPON KOKAN KK 19 April 1971 [7 March 1970] 23717/71 Heading B3M [Also in Division G4] The gauge of a rolled strip is varied during high speed operation of a continuous laden rolling mill without the necessity of reducing the rolling speed. In operation the signals from a pulse generator 9 associated with a deflector roller 2 are counted by a counter PC1 in response to a detector 1 detecting a point on the strip where a change of gauge is to start. A first mill stand 3 is then set to a preselected rolling schedule when the number of pulse signals counted has reached a predetermined value such that the point on the strip where the change of gauge is to start has reached the roll stand 3. Concurrently pulses from a generator 10 associated with the first mill stand are counted. The second mill stand 4 is set to the predetermined rolling schedule when the counted number of pulses from the generator 10 reaches a predetermined value and similar setting operations are repeated for succeeding mill stands 5-7. The predetermined value of the counted number of pulse signals is given by the equation K = lN/#R(1+f) where I = the distance between adjacent mill stands, R = the diameter of the mill roll, N = the number of pulses generated by one revolution of the mill roll, and f = the forward slip, and is preset by means of a correction computor 19 into each of the counters PC1-PC5 associated with the deflector roller and the rolls of the respective mill stand.
Patent GB-1360923-A (GB)
Title: Method for contrast dyeing of footwear
IPC: D06P1/00
Filed: 1972-05-19
Abstract: 1360923 Dyeing P.V.C. footwear VIKING- ASKIM AS 19 May 1972 [28 April 1971] 23770/72 Divided out of 1299994 Heading D1B Footwear manufactured from a plasticized homopolymer or copolymer of vinyl chloride is dyed by applying a powdered dye which is soluble in the plasticizer to selected parts of the footwear, preferably by brushing through a fine screen. Copolymers of vinyl chloride with vinyl acetate or vinylidine chloride are preferred, azo, aniline, azine, xanthine and anthraquinone dyes being employed. The plasticizer may be dioctyl- or didecyl-phthalate, di-isooctyl- or didecyl adipate, dioctyl sebacate, dodecyl benzene or paraffin wax.
Patent GB-1528542-A (GB)
Title: Exhaust gas purifying systems with an air-fuel mixture heating means
IPC: F02D35/00
Filed: 1976-06-09
Abstract: 1528542 Automatic control of engine exhaust NISSAN MOTOR CO Ltd 9 June 1976 [9 June 1975] 23823/76 Heading G3R [Also in Division F1] An exhaust gas purifying system for an I.C. engine includes means for gasifying the fuel in the intake manifold 20 by using the heat of the cooling water of the engine. The air-fuel mixture in the intake manifold is heated by water in a chamber 38 situated between the cylinder block and a radiator (not shown). A control unit 24, responsive to an exhaust gas sensor 30, comprises a P.I. controller 32, a pulse generator 34 and a pulse width modulator 36 which opens and shuts an electric or electromagnetic valve 22 of supply means 18.
Patent GB-388798-A (GB)
Title: Improvements in or relating to dairy installation
IPC: A01J11/00
Filed: 1931-08-25
Abstract: In a dairy installation for treating milk, cream, &c comprising one or more centrifuges and other apparatus such as heat regenerators, pasteurizers, and coolers, the liquid or liquids is or are led from the centrifugal bowl by a pipe or pipes fluid tightly connected thereto, whereby the liquid is closed to the atmosphere during its passage from the centrifuge and the formation of foam is prevented. Preferably the inlet pipe is also connected to the bowl in a fluidtight manner.  The pipes may be connected to the bowl by means of stuffing boxes, the supply conveniently taking place through a boring in the shaft carrying the bowl, and the outlet through a pipe situated on the axis of rotation so as to permit rotation of the bowl.  If more than one outlet is provided, the pipes are arranged concentrically.