baber/WOPTO huggingface dataset:
Patent GB-1424537-A (GB)
Title: Adjustable speed projector
IPC: G03B19/18
Filed: 1973-01-24
Abstract: 1424537 Cinematography G C CARAWAY 24 Jan 1973 3688/73 Heading G2E Motion picture projection includes a light source, projection lens, a continuously running shutter interrupting the light path at a first rate, a source of film pause advance signals having a second rate and means for advancing the film in response to the advance signals at a time corresponding to the next interruption of the light path. The film advance as shown, is by means of a ratchet claw driven by a single cycle drive. As shown in Fig. 2 the film advance pulses energize solenoid 29 by energizing relay 62 to close contact 70. The relay 62 is closed by closing contacts 60, 63 by means of conductive shutter sector 65. Fig. 12 shows another circuit for energizing a film advance solenoid. Fig. 9 shows the intermittent film claw 158 which has a ratchet type head which engages the sprocket holes on the down stroke and slides over them on the up-stroke. The claw is driven by a cam 157 having a dwell 157b holding it clear of continuously rotating wheel 154. On energizing solenoid 162 the cam 157 is moved into contact with the wheel 154.
Patent GB-800608-A (GB)
Title: Improvements in or relating to weight attachment for vehicles
IPC: B62D49/06
Filed: 1956-02-07
Abstract: 800,608. Motor vehicle frames. DOXTATOR, C. H. Feb. 7, 1956 [March 7, 1955], No. 3719/56. Classes 79(1) and 79(4) Longitudinal vehicle frame members 12 are interconnected by balancing weights 22 whereby the otherwise unequal weight distribution on the vehicle wheels is equalized, each balance weight 22 comprising a solid bar 24 of heavy material with mounting flanges 26 at the ends. As shown, adjacent a conventional rear axle assembly 20 the members 12 are connected by the members 22, the flanges 26 being riveted at 30 to the members 12.
Patent GB-1526484-A (GB)
Title: Impact-resistant thermoplastic moulding compositions and the production of graft copolymers therefor
IPC: C08L25/12
Filed: 1976-01-30
Abstract: 1526484 Moulding compositions and graft polymers therefor BASF AG 30 Jan 1976 [31 Jan 1975] 03729/76 Headings C3P and C3M A thermoplastic moulding composition comprises:-(A) 80-50 wt. per cent (based on A+B) of an 80 : 20 to 60 : 40 w./w. styrene/ acrylonitrile copolymer; and (B) 20-50 wt. per cent (based on A+B) of a graft copolymer of (1) 20-50 wt. per cent. (based on B) of an 80 : 20 to 60 : 40 w/w mixture of styrene and acrylonitrile grafted on to (2) 80-50 wt. per cent (based on B) of a rubbery polymer containing polymerized units of (i) 10-100 wt. per cent (based on B (2)) of butadiene; (ii) 0-90 wt. per cent. of a C 1-8  alkyl acrylate and (iii) 0-30 wt. per cent of one or more other comonomers; wherein rubbery polymer B2 has been produced by polymerization in aqueous emulsion in the presence of 0À2-5 wt. per cent (based on the monomers used to produce it) of a C 1-8  aliphatic alcohol. The invention also comprises a process for producing a graft polymer B as defined above by graft polymerizing the styrene/acrylonitrile mixture defined in B1 above on to a rubbery polymer B2 which has been prepared by polymerizing a mixture of (i) 10-100 wt. per cent butadiene, (ii) 0-90 wt. per cent of a C 1-8  alkyl acrylate and (iii) 0-30 wt. per cent of one or more other comonomers, in aqueous emulsion in the presence of 0À2-5 wt. per cent (based on (i) + (ii) + (iii)) of a C 1-8  aliphatic alcohol, B1 and B2 being used in a wt. ratio of 80-50 : 50-20 respectively.
Patent GB-371972-A (GB)
Title: Improvements in or relating to the braking control of electrically driven vehicles
IPC: B60T13/74
Filed: 1931-02-06
Abstract: 371,972. Electric brakes. GUY, S. S. Delamere, Newbridge Avenue, Wolverhampton. Feb. 6, 1931, No. 3774. [Class 103 (i).] In electrically-driven vehicles provided with both electrical and mechanical braking systems adapted for successive operation by a common control, the application of the electrical brake is subject to a restraining influence such that any sudden actuation of the control results in the application of a steady and sustained pull on the electrical brake connections. The brake pedal a when depressed first operates the lever c<1> of the electricalbrake controller c through tension springs d, bell-crank lever e, e<1>, and adjustable rod f against the action of a dashpot i and of a return spring k, and on further depression operates the mechanical brakes (not shown) against the action of the springs d, rotation of the lever c<1> being prevented by stop.
Patent GB-802610-A (GB)
Title: File tab or signal
IPC: B42F19/00
Filed: 1957-02-04
Abstract: 802,610. Indexing tabs. GRAFF CO., G. B. Feb. 4, 1957 [Feb. 6, 1956], No. 3774/57. Class 16 An index or signal tab 20 for attachment over the edge of a card 38 or 38a, comprises front and rear resilient leg members 22, 24 joined at their top edges 26 so as to be urged together, one member 22 having struck therefrom near its lower edge at least one elongated, substantially horizontal bridging strip 30 with vertical convex surface extending towards the other member 24, the strip 30 being attached at both ends to the member 22 and having upper and lower edges sharp to prevent removal from the card at right angles to the strip while allowing movement in the direction thereof, the other member 24 having an aperture 32 with horizontal dimension less than the length of strip 30 so that the strip will engage the rim of the aperture to hold the members normally in spaced apart parallel relation to facilitate reception of the card 38, 38a therebetween. The tab is formed from a single sheet of metal bent and cut to form the legs 22, 24 and an upstanding signal 28. The top edge 26 forms an abutment for the top 36 of the card 38 38a and the apertures 34 of the card 38 are arranged to be entered by the strip 30 which can be slid along the top of the card. With unapertured cards 38a, the material of the card is merely slightly bent into the aperture 32.
Patent GB-1486531-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1976-01-30
Abstract: 1486531 Electronic timepieces DAINI SEIKOSHA KK 30 Jan 1976 [5 Feb 1975]  03776/76 Heading G3T An electronic timepiece, Fig. 2, comprises manually operable switches including a setting/ correcting switch 6a, a resetting switch 6b and a safety switch 7, which must be closed before operation of switches 6a, 6b can be effective to change the time indication. Changes in the time indication due to accidental operation of switches 6a, 6b is thereby prevented. Indication is given on the display that the safety switch is closed. In normal operation of the timepiece switch 7 is open and the Q output of a flip-flop FF is "O", the output of NAND gate 1 is "1" and AND gates G1-G7 are open to pass signals derived by a decoder 13 from the content of seconds, minutes, hours and date counters in a circuit 12 to a driver 14 to operate a display device 15 (e.g. liquid crystal or solid state elements). When switch 7 is closed FF is set. Consequently an AND gate 1 is opened to pass a 1Hz signal from a frequency divider 11 to NAND gate 1. The resulting 1Hz output of NAND gate 1 opens gates G1 to G7 intermittently causing the time display to flash thus indicating that safety switch 7 is closed and the setting/correcting operation may be performed. Alternatively, only a portion of the time display may be flashed or the display device 15 may have a separate portion for indicating that switch 7 is closed. With closure of switch 7 AND gates 2, 3 are opened and repeated closing and opening of switch 6a produces pulses which are passed to a shift register 16 the outputs of which are connected (not shown) to respective counters in circuit 12 to change the count therein and thereby to change the time displayed. Closure of switch 6b resets the flip-flop FF and the divider 11.
Patent GB-251219-A (GB)
Title: Improvements in or relating to fountain or reservoir pens
IPC: B43K5/04
Filed: 1925-07-04
Abstract: 251,219. Pennington, A. July 4, 1925. Self-filling reservoir pens; caps; overflow arrangements.- A fountain pen of the type having a self-filling sac 4 adapted to be collapsed by the pressure of the surrounding air, preferably produced by sliding the nib-covering cap on to the rear end of the barrel, is provided with a plug 5 in the outer end of the barrel 1, and a rubber seating 9 formed with an air passage or passages 10 adapted to be closed when the plug is screwed or pushed inwards in order to prevent accidental compression of the sac. In filling, the plug is slightly unscrewed and the nib-covering cap is slid on to the rear end of the barrel, an air-aperture therein being closed. The plug 5 may be formed with passages 6, 7, or the space between the screw-threads on the plug and barrel may be relied upon to establish communication between the interior of the barrel and the cap. The upper surface of the seating 9 is preferably of convex shape and engages a depression in the lower face of the plug 5. The seating may rest on a ledge 16 in the barrel or on a screw-threaded annular washer. An annular recess 15 may be formed at the lower end of the barrel to receive any overflow ink so as to prevent soiling the interior of the cap.
Patent GB-803852-A (GB)
Title: Improvements in or relating to the joining or uniting of metallic sheets
IPC: B21D39/03
Filed: 1957-02-05
Abstract: 803,852. Sheet-metal joints. BIANCA, E. G., and DIEBOLD, K. Feb. 5, 1957 [Feb. 8, 1956], No. 3862/57. Class 83 (4). A process for joining metal sheets by a seamlike connection is characterized by cutting out at least one-row of openings 1, 2 on each sheet 3, 4, respectively to form a series of straps 5, 6 disposed transversely to the seam between said openings, vaulting said straps out of the sheets' plane, inserting the seams of the two sheets into each other to form at least one tubular channel into which a locking-core 9 is introduced, flattening finally the complete seam by beating or pressing, simultaneously forcing the locking- core into a wave-like shape. The straps are provided with recesses 5b, 6b to provide space for the locking core after flattening the seam. In a modification the straps are wider than the openings and are vaulted alternately downwards and upwards (Fig. 6) to provide deep and shallow straps. The tubular channel consists, in this assembly, of double superposed straps each of which belongs to a different sheet and the completed seam gives a very high seam strength. A laminated locking core consisting of curved strips 20 (Fig. 7a) may be used. The connection may consist of more than one seam using several cores and the openings may be arranged obliquely to the seam.
Patent GB-348034-A (GB)
Title: Improvements relating to locking mechanism for railway points
IPC: B61L5/10
Filed: 1930-02-05
Abstract: 348,034. Locking-mechanism f o r railway points. KERSHAW, A. G., PROUD, H. M., and WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London. Feb. 5, 1930, No. 3914. [Class 104 (i).] A device for locking the tongue 3 of a railway point to the rail 2 comprises a base 1 arranged under the rail 2 and secured thereto by bolts 4 provided with hooked ends 5 which are drawn against the rail by nuts. The clamp 11 for holding the tongue 3 against the rail is carried by a spindle 9 which may be turned by a lever 15 through a spindle 8 and coupling 10. When the spindle 9 is rotated, a threaded portion 12 turns in a nut 13 and causes the spindle to move axially and press the clamp to the tongue. The spindle has a flat 17 adapted to be engaged by a locking bolt 18 when the spindle is turned into operative position. A second flat 21 on the spindle is engaged by a looking device 22 to lock the spindle in the inoperative position. The nuts are housed in recesses which are covered by arms on the lever 5 to prevent the device from being detached from the rail 2. The clamp 11 may be pivoted at 23 to the spindle 9 and secured in its normal position by a renewable pin 24 which is sheared when the point 3 is forced away from the rail as the points are trailed through.
Patent GB-125054-A (GB)
Title: An Improved Antiseptic and Germicidal Tablet.
Inventor: DAVIS CHARLES THOMAS
IPC: C11D1/00
Filed: 1919-02-18
Abstract: 125,054. Davis, C. T., (Assignee of Rogers. A.). April 2, 1918, [Convention date]. Antiseptics. - Potassium mercuric iodide for use as an antiseptic for wounds &c. is made up into tablet form by the addition of a " stabilizer," such as potassium iodide, ammonium nitrate, or potassium chlorate, and a binder or filler which will prevent deliquescence such as sodium chloride, ammonium chloride, sodium bicarbonate, or dextrin. Colouring-matter may be added to indicate the poisonous nature of the solution produced on dissolving the tablets in water for use.
Patent GB-584107-A (GB)
Title: Improvements relating to heat interchange apparatus
IPC: F28F1/12
Filed: 1945-02-16
Abstract: 584,107. Heat-exchange elements. MORRIS MOTORS, Ltd., DONO, G. E., and HULL, J. T. A. Feb. 16, 1945, No. 3984. [Class 64 (iii)] In a radiator for an internal-combustion engine, an oil cooler, or other heat-exchanger having thin-walled liquid passages d with parallel flat outer surfaces, the spaces between which are intersected by secondary surface elements formed from thin metal sheets or strips, each such element is shaped so as to form a pair of oppositely disposed V or like portions a which at one side are united by a flat portion b and at their two free edges are bent over to form lips c. According to the Provisional Specification, the lips c are so formed that the flat portion b of the adjacent element can be slid between them.
Patent GB-286857-A (GB)
Title: Improvements in or relating to bearings for cranks and other like movement-transmitting devices
IPC: B61L7/02
Filed: 1927-02-12
Abstract: 286,857. Tyrer & Co., Ltd., Hiller, L., and Ballard, T. W. Feb. 12, 1927. Ball-jointed and like hinges.-A cranked lever 1 for railway signalling devices is pivoted on balls 4, 5, carried in recesses in the boss 2 of the lever 1 and in recesses in a supporting bracket 3<3>. The cavity for the upper ball may be formed in a removable member 6. In a modification the upper ball is replaced by the coned end 6<2>, Fig. 3, of a removable member 6.
Patent GB-102422-A (GB)
Title: Improvement in Coke Oven Recuperative Systems.
Inventor: CHRISTOPHER JOHN EDWARD
IPC: C10B5/12
Filed: 1916-03-18
Abstract: 102,422. Christopher, J. E. March 18, 1916. Coke ovens.-In a cokeoven setting, two regenerative chambers J, having horizontal partitions V for lengthening the course of the gases, are provided beneath each oven, and are so connected with the heating- flues that the air and waste gases pass through them in opposite directions. The thin dividing-walls T between the chambers allow transfer of heat, whether the system is worked with or without reversal. The invention is shown applied to an horizontal-flued oven, and the reversing-valves are so arranged that the course of the gases through the flues of the heating-walls is constant.
Patent GB-252231-A (GB)
Title: Improvements in or relating to the control of apparatus at an electric power substation from a central control office
IPC: H02J13/00
Filed: 1925-02-13
Abstract: 252,231. Automatic Telephone Manufacturing Co., Ltd., and Remington, C. Feb. 13, 1925. Drawings to Specification. Selective distant control systems and apparatus; tell-tale apparatus.-Relates to a system for supervising and controlling from a remote point the operation and condition of a number of apparatus units at a substation. The selection of apparatus at the controlled station is visually by transmitting a signal from the controlled to the controlling station over the same lines as those over which the selecting signal is transmitted. Supervisory signals for indicating the position of apparatus, e.g. circuit breakers at the substations are also transmitted over the same lines. A further feature resides in the arrangement whereby the lines are automatically taken into use when the operator at the central station desired to control apparatus at the substation or when a supervisory signal is to be sent. Three line wires are used, two being employed for the transmission of selecting, checking and supervisory signals so as to establish a clean circuit including the third line whereby meter readings may be obtained at the control office or any desired operation, such as the control of a circuit breaker may be effected at the substation. Further feature reside in the provision of controlling arrangements for preventing the operation of the supervisory signalling apparatus when the selecting equipment is in operation and vice versa, and in the use of two switches at the substation which ensure that the operation of the selected apparatus can only be proceeded with when the switches occupy complementary positions. The Provisional Specification describes an arrangement wherein two rotary switches at each station are employed. The keys at the control station are associated with one switch which operates to send impulses over the line until the contact marked by the operated switch is reached. The impulses operate both switches at the substation through a corresponding number of steps after which one switch is cut out of circuit and remains on the selected contact, while the other switch continues to rotate to transmit impulses back to the control station. These impulses control the second switch at 'the control station and, by means of a lamp, provide a check on the selection. As soon as the correct selection is accomplished and the selected apparatus operated, impulses for operating supervisory signalling apparatus are transmitted back from the substation by the selecting switch and the first switch at the control office is restored to its normal position. This Specification also refers to an arrangement wherein each impulse transmitted from the control station is followed by an impulse transmitted from the substation. The system described is identical with that described in Specification 252,230. Specifications 258,012, 258,178, and 258,179 also are referred to.
Patent GB-705677-A (GB)
Title: Improvements in and relating to magnetic amplifiers
IPC: H03F9/04
Filed: 1951-02-20
Abstract: 705,677. Automatic temperature control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 20, 1951 [Feb. 28, 1950], No. 4116/51. Class 38 (4) In a system involving two stages of magnetic amplification in which the output of the first stage is applied through a rectifier to the second stage, fluctuation of the A.C. supply voltage associated with the output circuits of the stages is arranged to have an opposite effect on each stage, and rectifiers associated with the input control winding and an opposing bias winding are matched to render the final output independent of A.C. voltage fluctuations. To maintain the temperature of a room above a predetermined value a bimetal strip 12, located in the room, moves away from a stop 16 upon fall in temperature below the predetermined value, unbalancing reactances 14, 15 by movement of a magnetic core 13, and thereby energizing, through a rectifier 23, a D.C. input winding 21 of a magnetic amplifier 18 by unbalancing a network associated with an A.C. supply 7, 8. Winding 21 opposes a D.C. bias winding 22 energized through a rectifier 33 from A.C. supply 7, 8. The reactance of A.C. windings 19, 20 on magnetic amplifier 18 is thus increased to decrease, through a rectifier 39, the energization from A.C. source 7, 8 to a D.C. input winding 37 of a second magnetic amplifier 34. Winding 37 opposes a D.C. bias winding 38 energized through a rectifier 9 from A.C. source 7, 8. The reactance of A.C. windings 35, 36 on magnetic amplifier 34 is thus decreased to increase, through a rectifier 45, the D.C. output to terminals 4 to which is connected apparatus (not shown) which thereupon opens the fuel valve of a gas furnace heating the room. In addition to the degree of inherent compensation for voltage variations of A.C. source 7, 8 provided by having two magnetic amplifiers whose outputs respectively decrease and increase, improved compensation is obtained by arranging that rectifiers 23 and 33 have identical characteristics and carry approximately the same currents.
Patent GB-114202-A (GB)
Title: Improvements in Carpenters' Squares or Rules.
Inventor: GILL HUBERT ALEXANDER
IPC: B25H7/04
Filed: 1917-03-24
Abstract: 114,202. Gill, H. A., (Taylor, S.). March 24, 1917. Protractors; squares; scales.-Carpenters' squares or rules with scales are provided with lines or rows of holes d, e, f, &c. Fig. 1 for marking off the angles of regular polygons, the marks for figures of four sides and upwards starting from the correspondingly numbered scale divisions, and the number of holes in each row corresponding with the number of sides of the polygon. In a modification, outlines of polygons l, k, Fig. 2, are marked and one side is extended across the square. The scale divisions are marked by holes a, an extra hole b or a progressively increasing number of extra holes c being provided at equal intervals.
Patent GB-1490796-A (GB)
Title: Sliding seats
IPC: B60N2/06
Filed: 1975-01-31
Abstract: 1490796 Seat slides A & M COUSIN & CIE ETABS COUSIN FRERES 31 Jan 1975 [31 Jan 1974] 4302/75 Heading A4J The upper rail 5 of a seat slide is provided with a boss 16 and a bracket 18 which fit within the lower rail 1 to prevent the two rails being torn apart when a stress is applied to the upper rail through a seat belt attached to the seat. The rails are locked in adjusted position by engagement of a pair of spaced locking fingers 9, 10 rotatably mounted on the lower rail 1 with one of a plurality of pairs of notches 15 in the upper rail 5. A shaft 17 for securing the upper rail to the seat extends through the boss.
Patent GB-999063-A (GB)
Title: Composition for promoting the growth of hair
IPC: A61K8/63
Filed: 1962-02-05
Abstract: Nitro derivatives of phenol, p-xylenol and guaiacol and their sodium salts are obtained by the direct nitration of the parent phenol, the salts being obtained by treating the nitro-compounds with sodium hydroxide.  Three differing methods of nitration are described: (a) treatment of the parent phenols with concentrated nitric acid at 60-70 DEG  C. to give mixtures of o- and p-nitrophenol, 4- and 6-nitro-2,5-dimethylphenol, and o- and p-mononitroguaiacol respectively; (b) treatment with HNO3/H2SO4 to give the same products which are separated to obtain the pure isomers and (c) treatment with H2SO4/KNO3 again followed by separation into the separate isomeric forms.ALSO:Hair-growing compositions comprise as essential active ingredient from 0,0001 to 1,2% w./v. of one or more of the sodium salts of mono-nitro phenols, mono-nitro xylenols and mono-nitro guaicols.  They may be in semi-solid or liquid forms, e.g. a hair cream, pomade, lacquer, eyebrow paint, lotion, liquid shampoo, setting lotion or cold permanent waving lotion.  Other specified ingredients which may be present include female sex-hormones, calcium pantothenate, pyridoxine hydrochloride, salicylic acid, resorcinol, methol, diphenhydramine hydrochloride, cholesterol, sodium glutamate, glycerin and "sensitized pigments," examples of which are given.ALSO:Preparations for promoting the growth of hair, including cold permanent wave compositions, comprise from 0.0001 to 1.2% W/V of at least one of sodium mono-nitro-phenolate; sodium mono-nitro-guaiacolate and sodium mono-nitroxylenolate.  Specific examples include a cold permanent waving composition comprising liquid paraffin, lanolin, sorbitan mono-oleate, polyoxymethylene sorbitan mono-oleate, gelatin, borax, sodium-4-nitro-phenolate, ammonia and ammonium thioglycolate and a setting lotion comprising gum tragacarth, glycerine, ethyl alcohol, ethyl-p-hydroxy benzoate and sodium-4-nitro-xylenlate.