baber/WOPTO huggingface dataset:
Patent GB-799352-A (GB)
Title: New polycyclic compounds
Inventor: SLINGER FRANK HAYHURST
IPC: C07D498/06
Filed: 1955-10-07
Abstract: The invention comprises compounds of the formula <FORM:0799352/IV (b)/1> wherein X is Cl2, Br2, S or NH, A and B may be hydrocarbon or substituted hydrocarbon radicals or may be joined to form a homocyclic or heterocyclic ring (e.g. a benzene ring), and nuclei P and Q may carry substituents.  The compounds, where X is Cl2, Br2 or S, may be made by reacting the corresponding compounds where X is O with phosphorus pentachloride, phosphorus pentabromide, and phosphorus pentasulphide, and those where X is S may be made by reacting the corresponding compounds where X is H2 with sulphur. Those compounds where X is NH, may be made by heating a 1,8-naphthylene diamine with a dinitrile of the formula <FORM:0799352/IV (b)/2> those where X is S by heating a 1,8-naphthylene diamine with a cyanothioamide of the formula <FORM:0799352/IV (b)/3> and those where X is NH or S by heating a 1,8-naphthylene diamine with a compound of the formula (in one of its tautomeric forms) <FORM:0799352/IV (b)/4> oe an alcohol addition product or mercaptan addition product thereof, where Y is O-alkyl, -SH, -S-alkyl, -NH2, or -NHR, where R is a hydrocarbon or substituted hydrocarbon radical.  The products are pigments for the colouring of plastics and artificial fibre such as viscose, cellulose acetate, nylon, and polyacrylonitrile.  In examples: (1) phthaloperinone is reacted with phosphorus pentachloride; (2) phthaloperine is heated with sulphur in naphthalene; (3) 1,8-naphthylene diamine is reacted with 1-imino-3-thio-isoindoline or with 1 - thio - 3 - mercapto - isoindolenine to give 12-thiophthaloperinone; (4) 1,8-naphthylene diamine is reacted with each of the following to give 12-iminophthaloperine; (a) 1-imino-3-amino-isoindolenine, (b) phthalonitrile, (c) 1-imino - 3 - ethylmercapto - isoindolenine, (d) 1 - imino - 3,3 - ethylenedioxy - isoindoline, (e) 1 - imino - 3 - phenylimino - isoindoline, (f) 1,3 - di-(phenylimino)-isoindoline, (g) 1-imino-3,3-dibenzylmercapto-isoindoline; (5) 1,8-naphthylene diamine is reacted with (a) 4,5,6,7-tetrahydro - 1 - imino - 3 - amino - isoindolenine, (b) 5 - phenyl - 1 - imino - 3 - aminoisoindolenine, (c) a b  - diphenyl - fumaronitrile, (d) 2,5 - diimino - 3,4 - diphenyl - pyrroline, (e) 5 - chloro-1,3 - diimino - isoindoline, (f) 5 - nitro - 1,3 - diimino-isoindoline.
Patent GB-464210-A (GB)
Title: Improvements in or relating to gauges
Filed: 1935-10-16
Abstract: 464,210. Gauging-apparatus. LAPOINTE MACHINE TOOL CO., Ltd., and BONNAFE, O. W. Oct. 16, 1935, No. 28608. [Class 106 (ii)] A gauge for use in the measurement of grooved, serrated, or splined shafts comprises a metal body a having a central bore with inwardly directed projections b conforming in shape, dimensions and pitch with the grooves, splines, &c. in the shaft, and flat surfaces d formed on the said body parallel to grooves C, C of standard dimensions and mutual inclination. In the form shown, the grooves make an angle of 60‹ with each other and the projections b are 120‹ apart. The gauge is applied to the shaft with the projections h engaging the grooves, and the curved portion l serves as a base from which the depth of the groove in the shaft can be measured.
Patent GB-892605-A (GB)
Title: Servo valve
IPC: F15B13/043
Filed: 1959-08-21
Abstract: 892,605. Fluid-pressure servomotor-control systems; valves. GENERAL PRECISION Inc. Aug. 21, 1959 [June 4, 1959], No. 28625/59. Class 135. A main valve member 18 slidable in a ported sleeve 19 to control the communication of outlet ports 22, 23 with pressure fluid inlet ports 20, 21 and drain ports 26, 27 is controlled by a forked pilot valve member of which the two arms 16, 17 straddle an orificed insert 18a in the main valve member. The pilot valve member is carried by the armature of an electric torque motor and its deflection is resisted by a torsion rod (not shown). The orifices 31, 33 in the insert 18a open at portions of the insert which are flattened for sliding co-operation with the arms 16, 17 and communicate through bores 28, 29 with chambers 65, 66 which are fed through orifices 38, 39 with pressure fluid. The orifices 31, 33 are offset with respect to each other along the axis of the main valve member so that when the arms 16, 17 are deflected one of the orifices is opened to reduce the pressure in the corresponding chamber 65 or 66 and cause a corresponding deflection of the main valve member. Instead of the orifices 31, 33 being offset they may be in alignment with each other and the arms 16, 17 offset. Also, the orifices 31, 33 may be offset in the opposite sense so that a deflection of the pilot valve results in a deflection in the opposite direction of the main valve member. The single orifices 31, 33 may be replaced by pairs of orifices. The fluid supplied to the orifices 38, 39 passes through filters 42, 43 and magnetic sleeves 44, 45 which remove any remaining particles of magnetic material.
Patent GB-1072773-A (GB)
Title: Automatic sprinkling or irrigating device
IPC: A01G25/16
Filed: 1964-07-10
Abstract: 1,072,773. Photo-electric control systems. C.A. DE LA CHEVRELIERE. July 10, 1964 [Oct. 22, 1963], No.28661/64. Heading G1A. To control a sprinkling or irrigation device a photo-sensitive device 3 is positioned in a box 1 having a slot 2 in the opposite wall. The box is mounted for angular adjustment on a stand 9 and is so positioned that it is possible for direct sunlight to fall on the device 3 for a suitable period during the day, preferably when the sun is low. When sunlight does pass through the slit and fall on the cell it causes a relay 5 to be energized controlling electromagnetic valve 6 in the pipeline 7 to the watering system. The period of time during which sunlight can operate the system depends on the width of the slot 2. The effective width of this can be varied by means of a screen hinged to the front of the box and capable of being locked in a desired angular position or by a sliding shutter movable partially over the slot. A filter 14 may be placed in front of the cell 2 or the relay arranged to function only when the light intensity is above a given value. Preferably the dimensions of the arrangement are chosen to prevent any chance of the system being actuated when the sun is high.
Patent GB-834075-A (GB)
Title: Annular disc assembly
IPC: F16D1/06
Filed: 1957-09-11
Abstract: 834,075. Stuffing-box packing. TARBUK, F. M., and PFLAUM, P., [trading as TARBUK & CO. F. M.], and HERMANUS, H. Sept. 11, 1957 [Sept. 12, 1956], No. 28678/57. Class 122 (5). [Also in Groups XXII, XXIV, XXV, XXVIII, XXXII and XXXIV] A resilient plastic disc-shaped element (see Group XXXII) may be used as a sealing element. Fig. 13 shows how a ball-bearing 6 is retained and sealed between a shaft 5 and a housing 7 by a spacer 9, a large disc 2 and a pair of smaller discs 1. In Fig. 14 ball-bearing 6 is sealed by a spacer 9, a disc 3 and a nut 10. Fig. 15 shows the sealing discs 1, 1a, in use between a shaft 5 and a bearing surface 7. Angle rings 11, 12 may be placed as shown or placed adjacent the shaft 5. In Fig. 17 an angle ring 15 is used in conjunction with discs 3 and a retaining ring 16. In a valve assembly 21, Fig. 18, a sliding member 23 is sealed by discs 1 clamped in place by a nut 24 and a ring 25. Fig. 19 shows a lubricating assembly for a shaft 31, discs 1 seal the shaft 31 and an oil inlet pipe 34.
Patent GB-1529070-A (GB)
Title: Mix/effects switch arrangement and mix/effects switching system
IPC: H04N5/268
Filed: 1976-07-09
Abstract: 1529070 Television CENTRAL DYNAMICS Ltd 9 July 1976 [7 May 1976] 28699/76 Heading H4F A mix/effects switch arrangement for television video signals, comprises a plurality of switches K1A, K2A, K1B, K2B and S5, each switch having two input terminals, an output terminal, and a control terminal C1-C5, switches K1A and K2A being serially arranged to provide one input for switch S5, and switches K1B, K2B being serially arranged, in parallel to switches K1A, K2A, to provide a second input for switch S5, which switch is a "soft" switch, i.e. it provides a gradual changeover between two input signals in a proportional manner to the change in amplitude of a control signal.
Patent GB-1450289-A (GB)
Title: Thiadiazolylmidazolidinones
IPC: C07D417/04
Filed: 1974-06-28
Abstract: 1450289 1,3,4-Thiadiazolyl-imidazolidinones VELSICOL CHEMICAL CORP 28 June 1974 [29 June 1973 27 July 1973 13 Aug 1973] 28716/74 Heading C2C Novel compounds of Formula I wherein R<SP>1</SP> represents a C 1-4  alkyl group, an alkenyl, chloroalkyl, CF 3 , alkoxy, alkylthio, alkylsulphonyl or alkylsulphinyl group and R<SP>2</SP> represents an alkyl group are obtained by heating a compound of Formula II in a dilute aqueous, acidic reaction medium for about 10 to about 60 minutes. The starting materials II are prepared by reacting an isocyanate dimer of Formula III with an acetal of formula, the compounds of Formula III being themselves obtained by reacting the corresponding 2-amino- 5-substituted-1,3,4-thiadiazole with phosgene. The compounds of Formula I are herbicides.
Patent GB-1114376-A (GB)
Title: A.c. amplifiers
Inventor: ADAMS DEREK STANLEY
IPC: H03F3/21
Filed: 1965-07-07
Abstract: 1,114,376. Transistor amplifying circuits. JOSEPH LUCAS (INDUSTRIES) Ltd. 6 June, 1966 [7 July, 1965], No. 28747/65. Heading H3T. In order that the drive shall be shared equally between a number of transistors 17, 18, 19 their base-emitter paths are driven from the secondary windings 25, 26, 27 respectively of a number of transformers, the primaries 22, 23, 24 of which are connected in series across the signal source 16. Two such sets of transistors may be arranged to be driven in push-pull, the additional set of transistors being driven by means of tertiary windings on the transformers (Fig. 2, not shown). Drive source 16 may comprise a current source, a net D.C. flow through the transformers being avoided by connecting diodes 31, 32, 33 across the base-emitter paths of transistors 17, 18, 19 respectively, the diodes having properties similar to the base-emitter diodes of the transistors.
Patent GB-419118-A (GB)
Title: Improvements in or relating to trousers
IPC: A41F9/02
Filed: 1933-10-18
Abstract: 419,118. Trousers. HOGG, Ltd., W. A., and HOGG, W. A., 19, Queen Street, Leeds. Oct. 18, 1933, No. 28765. [Class 141.] Trousers are provided with pieces of elastic material 1, which extend across pleats, folds, slits, or gussets in the waistband, and which are concealed during wear by a sewn-on waistband 2, the ends of which are left free at the front and are adapted to be fastened together. The pieces of elastic material are permanently secured in the waist portion, their rear ends being sewn into the side seams 4, and their front ends being sewn to the trousers adjacent to the usual buttoned fly 3.
Patent GB-372228-A (GB)
Title: Improvements in lenses for photographic and other purposes
IPC: G02B13/00
Filed: 1931-10-17
Abstract: 372,228. Lenses. LEE, H. W. and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Oct. 17, 1931, No. 28885. [Class 97 (i).] In a lens of the kind described in Specification 224,425, [Class 97 (i), Optical systems &c.], comprising a dispersive component between two collective components of which the front consists of a single element and the rear component consists of two simple collective elements, the focal length of the front component is made not less than that of the system and the dispersive component is so placed that its distance from the outermost surface of the front component is at least 20 per cent greater than its distance from the outermost surface of the rear component. Preferably the surfaces of the dispersive component are of unequal curvature, the surface of greater curvature being turned towards the front component, and the front component is a meniscus having a refractive index less than 1À60. Numerical data are given in the Specification.
Patent GB-1186369-A (GB)
Title: Hydraulic Press for Working and Shaping Metals
Inventor: FORICHON GASTON SEBASTIEN
IPC: B30B1/32
Filed: 1967-06-22
Abstract: 1,186,369. Metal working presses. G. S. FORICHON. 22 June, 1967 [30 March, 1967], No. 28928/67. Heading B3H. An hydraulic press for working and shaping metals comprises mechanical or hydro-mechanical means for rapidly moving a tool-carrying table or a die-carrying table until the pressing tool contacts the workpiece, an hydraulicallyoperated pressing piston for displacing the tool-carrying table so as to work the workpiece and hydraulic and cylinder devices effective only for returning the pressing table to its initial position. In one embodiment, Fig. 3, a piston 22 is displaced by hydraulic fluid introduced into a chamber 24 2  via a valve EVd to cause via linkage 20 1 , 20 2 , 23, a table 21 to be lowered, which table 21 is guided by rams 29 1 , 29 2  displaceable in cylinders 30 1 , 30 2 . When the workpiece has been contacted, a swivel joint 43 of the linkage contacts a switch 8, which reverses a valve EVa to increase the pressure in a chamber 12 which causes a piston 10 and the table 21 to be lowered. The shaped workpiece is removed by an hydraulically-operated ejector 32. The table 21 is returned to its initial position by the rams 29 1 , 29 2 . The stroke of the piston 22 is adjusted by a screw 25 movable by a motor 26, whilst the position of an intermediary table 17 is pre-set by a motor 16 which moves a screw 13, attached to the table 17, within the piston 10. The amount of movement of the tables is indicated by pointers 18, 18 1 . In another embodiment, Fig. 5, the lower die-carrying table 31 is moved by toggle linkage and when the workpiece is contacted the piston 10 is moved to shape it. The shaped workpiece is ejected by a fixed ejector 32 upon the return of the table 31. In a further embodiment, Fig. 7, the table 21 is moved to contact the workpiece by a thread screw 50 operated by a motor 51.
Patent GB-849910-A (GB)
Title: Improvements in sliding clasp fasteners
IPC: A44B19/04
Filed: 1956-09-21
Abstract: 849,910. Sliding clasp fasteners. FORNO, L. Aug. 26, 1957 [Sept. 21, 1956], No. 29006/56. Class 44. A sliding clasp fastener comprises two stringer tapes 3, 4 each having a row of individual fastening elements 5, 6 secured to it, the elements of one row being engaged with and disengaged from the elements of the other row by a sliding clasp 14, each fastening element 5 being provided with a locking member 9 which is movable into engagement with a recess 13 in the corresponding element 6 to lock the elements together, the sliding clasp 14 having a magnetized portion 21 the attraction of which for the locking members moves each locking member to its locking position on movement of the sliding clasp in one direction and to its non- locking position on movement of the sliding clasp in the opposite direction. When the elements 5, 6 are engaged their end faces are aligned and the slider is provided with flanges 18, 19, 22 which engage these faces. The flange 18 is provided with an extension 20 which engages guiding recesses in the elements 5, 6. The locking member is L-shaped with one arm 10 pivoted in its element body and with its other arm 11 contained in a recess 12 in the element 5 in the non-locking position; it is moved through a right angle to its locking position. The upper surface of each element 5 is provided with an ornamental brilliant as indicated at 24. To enable ths sliding clasp to move over the elements 5 a portion 23 of its upper surface is hinged; this portion also serves as a handle for moving the sliding clasp.
Patent GB-511108-A (GB)
Title: Improvements in or relating to folding photographic cameras
IPC: G03B13/02
Filed: 1938-10-07
Abstract: 511,108. Photographic cameras; finders. ZEISS IKON AKT.-GES. Oct. 7, 1938, No. 29137. Conventi6n date, March 24, 1938. [Class 98 (i)] A mirror reflex viewfinder 2 is mounted, preferably rotatably on a part 3 held in a guide 1 mounted on the objective carrier of a folding camera and readily removable therefrom.
Patent GB-721461-A (GB)
Title: Improvements in chocks for aircraft
IPC: B64F1/16
Filed: 1951-12-13
Abstract: 721,461. Aircraft wheel chocks. UNGLESS, D. C. March 12, 1953 [Dec. 13, 1951]. No. 29170/51. Class 103 (1). In a chock for aircraft wheels having an anchor for anchoring the chock to the surface on which the aircraft is standing, means are provided for thrusting the chock away from the anchor rearwardly against the aircraft wheel to secure a firm resistant pressure against said wheel. The rear surface 11 of the block 10 is preferably curved to the curvature of the aircraft wheel 12 and in its inoperative position the chock is moved on halfround skids 24 provided underneath the block. Operation of a foot (or alternatively a hand) pedal 18 actuates a pump 17 to supply hydraulic fluid to a single or double ram unit 16 which forces feet 14, fitted with a friction lining or like surface 15, or alternatively having a serrated surface, forwardly by sliding in suitable guide 13 provided in the block. This action moves the block rearwardly away from the feet 14 to set up a resistant pressure against the aircraft wheel. The feet 14 may be returned to their inoperative position by means of a rope 22, which, when pulled, actuates a hydraulic release 23, fitted to the ram. Actuation of the feet 14 may also be effected by a hand or foot operated ratchet or like mechanism.
Patent GB-718291-A (GB)
Title: Improvements in and relating to the non-destructive testing of solid bodies using ultrasonic vibrations
Inventor: HALLIDAY WILLIAM
IPC: G01N29/06
Filed: 1951-12-13
Abstract: 718,291. Testing materials by ultrasonic vibrations. KELVIN & HUGHES, Ltd. March 13, 1953 [Dec. 13, 1951], No. 29272/51. Class 118 (2) In a pulse-echo ultrasonic flaw detector with a cathode-ray tube indicator, the cathode-ray beam is deflected in one direction in correspondence with movement of the transducer unit over the surface of the work piece and is deflected in a perpendicular direction by the echo pulses. As shown the transducer unit comprises mechanically-connected transmitting and receiving transducers 17, 19 coupled to the surface of the work piece by probes 10, 11, the unit being linked to the slider 12 of a potentiometer 13 which is connected to one deflecting plate 14 of the cathode-ray tube 15, the perpendicular deflecting plate 21 being connected to the receiver 20. The transmitting transducer 17 is connected to a pulse generator 16 and in order to prevent display of the transmitted pulses and of echoes from the bottom surface of the work piece, the cathode-ray beam is gated on during the required period by a control pulse from generator 18 coupled to generator 16; alternatively the control pulse may be applied to gate receiver 20. The range of a flaw is determined by causing the trailing edge of the control pulse to occur progressively earlier until the response produced by the flaw just disappears. The range may also be determined by a separate cathode-ray tube with a type-A display or the tube 15 may be switched to give such a display. Specification 696,926 is referred to.
Patent GB-182050-A (GB)
Title: Improvements in cigarettes or the like
IPC: A24D1/12
Filed: 1921-11-04
Abstract: 182,050. Low, A. M. Nov. 4, 1921. Cigarettes.-A core c of asbestos wool or thread or other infusible material prevents untimely falling of the ash.
Patent GB-927270-A (GB)
Title: Disc brake
Inventor: BUTLER HENRY JAMES
IPC: F16D55/30
Filed: 1958-09-13
Abstract: 927,270. Disc brakes. DUNLOP RUBBER CO. Ltd. Sept. 11, 1959 [Sept. 13, 1958], No. 29385/58. Class 103 (1). A disc brake has a rotatable, axially movable disc 2, a non-rotatable, axially-fixed friction pad 4, a non-rotatable, axially-movable friction pad 5, a thrust member 24 associated with pad 5 and operated by lever 19, a threaded member 13 for a return abutment for the brake-operating mechanism, and a helicallywound clutch spring 18 in frictional engagement with the member 13 and operated by angular movement of lever 19. Manual rotation of lever 19 causes balls 22 to ride up the walls of recesses 21, 23 in lever 19 and member 24, respectively, to urge pad 5 against disc 2 which slides on shaft 3 to abut pad 4. The lever 19 after a certain amount of angular movement, moves spring 18 to a new angular position on threaded member 13 which is held in position by a coiled spring 15. On brake release, the member 13 is gripped and rotated by spring 18 and moves axially in a fixed sleeve 8 to compensate for pad wear. A spring 14 mounted between a pin 25 in member 13 and a rotatable pin 26, 27 in the backing plate 6 of pad 5, biases the pad 5 from the disc 2. The pads can be removed via an opening in the fixed housing 1 closed by plate 29. Spring 15 has an end in a recess in a rectangular member 16 on member 13 and seated in a corresponding recess in housing 1.
Patent GB-1112652-A (GB)
Title: Improvements in or relating to the determination of the time of travel of a signal through a medium
IPC: G01V1/36
Filed: 1965-07-12
Abstract: 1,112,652. Seismic surveying. GENERAL DYNAMICS CORPORATION. 12 July, 1965 [13 July, 1964], No. 29445/65. Heading H4D. The disclosure is substantially the same as in Specification 1,112,651 but the claims relate to a method and apparatus for determining the travel time of a signal through a medium, the signal being a number of wave trains of different frequencies and a selected cycle of each wave train being applied to the medium at a respective predetermined time.
Patent GB-154069-A (GB)
Title: Improvements in stops for hand levers for railway signalling
IPC: B61L7/02
Filed: 1919-11-26
Abstract: 154,069. Ross, A. P. Nov. 26, 1919. Hand levers. - A locking-device for the catch-handle of a handlever is arranged to be fixed permanently to the hand-lever, and when moved to the inoperative position remains in that position until the signalman lifts the locking-portion vertically prior to rotating it into the locking-position. Fig. 1 shows a view in elevation (partly in section) and Fig. 2 a plan view. A collar 6 fixed to the handlever 1 has lugs 8 carrying the pivot pin 14 of a locking-piece 10, which rests by means of a notch 12 against the catch-handle 3 to lock the latter. The pin 14 passes through an elongated slot 13 in the locking-piece 10, so that when the locking-piece 10 is rotated about the pin 14 into the inoperative position it drops a little on to the base of the collar 6 and remains in a vertical position resting against the handlever 1. To restore it to locking position it is therefore first necessary to lift the locking-piece 10 before rotating it. Lugs 9 on the collar 6 limit the downward movement of the locking- piece 10.
Patent GB-1508308-A (GB)
Title: Wheelchairs
IPC: B62B5/04
Filed: 1975-07-03
Abstract: 1508308 Braking wheelchairs; transmitting mechanisms NEW EQUIPMENT Ltd 3 July 1975 [3 July 1974] 29581/74 Heading F2E A geriatric wheelchair whereof a braking device 16 is gravity biased to a position braking at least one wheel 6 has a control device 8 with a horizontal control bar 8b disposed in front of a pushbar 20 of the wheelchair whereby an attendant may grasp the bar 8b together with the pushbar 20 to release the braking device 16 to allow the chair to be propelled. In the wheelchair illustrated both rear wheels 6 have a respective brake pad 16 associated therewith to engage the wheel tyre. Each pad 16 is secured to the chair frame 2 while each rear wheel 6 is journalled on a carrier arm 10 pivoted to a stirrup 12 rigidly fixed to a member 14 of the chair frame 2, the wheel 6 being urged upwards to engage the pad 16 by a spring 18. The control device 8 has dependent side portions 8a fixed to the respective carrier arms 10 and when control device 8 is drawn rearwards bringing bar 8b against pushbar 20 the the arms 10 are pivoted against springs 18 to move rear wheels 6 downwards away from pads 16.  The springs 18 may be dispensed with and gravity biasing be relied upon entirely. The braking force may be applied by friction on any element that rotates with the wheels.