baber/WOPTO huggingface dataset:
Patent GB-806796-A (GB)
Title: Improvements in or relating to transistor oscillators
IPC: H02M3/338
Filed: 1957-01-02
Abstract: 806,796. Converting. GENERAL MOTORS CORPORATION. Jan. 2, 1957 [Jan. 17, 1956], No. 177/57. Class 38 (2). [Also in Group XL (c)] A circuit for deriving a high direct voltage output from a low-voltage source 12 comprises a transistor oscillator which is coupled by transformer 14 to a full-wave rectifier circuit supplying a load 84. The oscillator comprises two transistors 10, 10<SP>1</SP> connected in push-pull, a transformer 14 having a centre-tapped primary winding connected between the collector electrodes of the transistors and a secondary winding, which is not centre-tapped, connected between the base electrodes and a bias circuit for the base electrode of transistor 10<SP>1</SP> comprising resistors 50 and 62 connected as a potentiometer chain whereby on closing the switch 32 transistor 10<SP>1</SP> is able to conduct and operation of the oscillator is initiated. On closing the switch 32 the transistor 10<SP>1</SP> conducts since the base is negative relative to the emitter owing to the potentiometer chain 50, 62 and the increasing current flowing through one half winding of the primary of transformer 14 generates a potential difference across the secondary winding which is fed back to the base of transistor 10<SP>1</SP> so as to send it further negative and increase the current flow through the transistor. When eventually a saturation current is reached the feedback ceases and the current in the transistor 101 falls, the regenerative effect then being such as to cut the transistor off rapidly to cause the transistor 10 to commence conducting. Hence the transistors 10, 10<SP>1</SP> are alternatively conducting and by suitable choice of capacitor 58 and resistor 60 a squarewave output, representing a maximum power conversion, may be obtained. The circuit described employs junction-type PNP transistors; alternatively NPN or point-contact types may be used.
Patent GB-154092-A (GB)
Title: Improvements in tip carts, tip waggons and like vehicles
IPC: B60P1/14
Filed: 1920-01-03
Abstract: 154,092. Barnett, W., and Florendine, J. Jan. 3, 1920. Tipping-carts.-In a tip-cart or wagon, means as described below are provided whereby the body may be tilted sufficiently for discharge purposes without striking the ground although the body is mounted with its base line at an elevation lower than that of the wheel axle, 3. The body 4 is located between side members 2 on each of which two parallel guide-members 7 with their ends curved rearwardly and two straight guidemembers 6 are erected, and rollers 11, 10 attached to the body move respectively in these guides. For loading purposes, the body is supported by the rollers 10 resting on the frame 2. A winch 12, fitted with a ratchet and pawl 16, has a flexible connexion 13 running over a pulley 14 at the top of the members 6 and attached to a yoke 10<x> on the roller 10, so that rotation of the winch raises the body until the roller 11 reaches the curved part of the members 7 when the body tips up. In modifications, the side frames 2 may be extended and striking-pins fixed to the body 4 to contact with these extensions and assist in the tipping, or the members 7 may be placed forward of the members 6. Provision is also made for the attachment to the end of the members 6 of an arm carrying suitable tackle for lifting weights into the vehicle. Screw or lever gear may replace the winch 12.
Patent GB-267087-A (GB)
Title: Improvements in or relating to printing machines
IPC: B41L39/08
Filed: 1927-01-04
Abstract: 267,087. American Multigraph Co., (Assignees of Chisholm, C., and Colquhoun, P. M.). March 4, 1926, [Convention date]. Tripping-arrangements; rotary machines.-An office printing-machine, and more especially a machine of the kind described in Specification 147,682, which is fitted with impressioncontrolling devices controlled by the presence or absence of a sheet for tripping the impression if a sheet is absent, is constructed with a cam on the printing-drum for controlling means for restoring the impression after each cycle of operations, and in the event of a sheet not being fed the counting-mechanism is rendered inoperative, and a supplementary printing-device, such as a signature-printing or address-printing device, is automatically tripped if the main printing-couple is tripped. The impression roller 30, Fig. 4, is adjustably mounted in eccentric bearings connected by a link 70 to a lever 71 mounted on an adjustable pivot and controlled by a spring 74 which tends to move the lever to the left and to rotate the bearings of roller 30 so as to move the impression roller out of contact with the printing segment 20. Normally a catch 50 prevents this tripping action, but if a sheet .s absent when feeler fingers 61 test for its presence, the roller is tripped. At the next cycle of operation of the machine a cam 75 acts on the lever 71 to restore the roller to normal position by acting on a roller 76 on a lever 77 pivoted to the lever 71 and normally maintained by a spring 78 in contact with a pin 87 on lever 71. If a sheet is printed by the forme 20 and roller 30 it may be printed on by a supplementary couple comprising an impression roller 102 and a segmental printing-plate 101 on a roller 100 mounted in eccentric bearings. The bearings are controlled by a spring 126, lever 125, link 124, and lever 123, the spring acting to keep the printing- roller in inoperative position. A cam 130, Fig. 11, in the normal operation of the machine acts oii a roller 128 which can move axially in a socket 129 on the lever 125, and moves the roller 100 to operative position. When a sheet is missing and the lever 71 is moved to the left to trip the main printing-couple, the pin 128 is withdrawn from its operating cam by a pin 148, link 147, bell-crank 146, and link 145. The pin 128 can be held permanently out of operation if the supplementary printing couple is not required to print. Counting-apparatus. - The number of sheets actually printed are counted by a counter 90, Fig. 4, with a crank 91 operated by a lip 82 on an oscillating plate 80 mounted on the bearing 73. The plate 80 is normally depressed to operate the counter by the spring 78 when a cam 85 integral with the restoring cam 75 permits. If, however, a sheet is not fed, and the lever 71 is moved to the left to trip the printing-couple, the pin 87 on the lever 71 engages a tongue 88 on the plate 80 and so prevents actuation of the counter.
Patent GB-1073101-A (GB)
Title: Improvements in rock drill bits
IPC: E21B10/38
Filed: 1966-01-04
Abstract: 1,073,101. Percussive drills. ATLAS COPCO A.B. Jan. 4, 1966 [Jan. 19, 1965], No. 297/66. Heading B4C. A percussive rock drill bit comprises wings 4, 5, 6, 7 mounting cutting inserts 9, the drill being provided with reaming portions 11 having leading and trailing edges 13, 14. The reaming portions 11 are slightly less in diameter than the wings and are adapted to clear away any chippings which would jam the drill. Holes (20, 21, Figs. 3 and 4), are provided for flushing liquid. The drill bit is connected to a drill rod 3 by means of a screw thread 2; more than one drill rod may be coupled together by means of sleeves 22 having wings 23 formed with reaming edges 24, 25.
Patent GB-1030841-A (GB)
Title: Improvements in or relating to electric signal switching arrangements
Inventor: SANSOM JOHN STUART
IPC: H03K17/74
Filed: 1962-01-04
Abstract: 1,030,841. Diode switching circuits. IRIS PRODUCTIONS Ltd. Dec. 31, 1962 [Jan. 4, 1962], No. 421/62. Heading H3P. An electronic switch comprises a pair of diodes D1, D2 connected in series opposition between an input terminal 10 and an output terminal 11, the conductivity of the diodes being controlled by the potential applied to the junction 12. A further diode D4 is made conductive when diodes D1, D2 are non- conductive so as to connect a dummy load of resistor R1 and capacitor CX across the input circuit. When diodes D1, D2 are made conductive to connect terminals 10 and 11, D4 is non-conductive and the current through D1 R1 and R2 is equal to that through D2 and RX. The control voltages are preferably applied to terminals 13, 14, 16, 17. A plurality of such circuits may form a television video signal switching matrix.
Patent GB-210414-A (GB)
Title: Improvements in or relating to photographic printing frames
IPC: G03B27/20
Filed: 1924-01-07
Abstract: 210,414. Lithoprintex Corporation, (Assignees of Jones, H. C.). Jan. 29, 1923, [Convention date]. Printing - apparatus with pneumatic devices. -A vacuum - pressure printing-frame of the kind described in Specification 195,377, which may be displaced stepby-step over a sensitized of large area, and is provided with means for holding the negative against lateral movement in the frame, is provided with (1) means between the negative and the frame for securing and registering the negative with respect to the frame, and (2) transparent enveloping means, Extending over the frame opening in rear of the negative, and adapted to press the negative against the sensitive surface when the vacuum. is created. In the form shown in Fig. 2, the rectangular frame 1, having lugs 5 for securing it to the carriage of a step-and-repeat machine, has around it a deep groove 9 adapted to receive the vertical flange of a frame 8 formed of angle iron, upon which the negative 2 has been registered and cemented in an auxiliary registering apparatus. The horizontal part of the frame is grooved to permit passage of air from back to front of the negative. A sealing member 6 extending round the frame. 1 engages the sensitive surface 7, and a transparent celluloid sheet 11 having round it a rubber strip 12 secured to the frame 1 by a clamping-frame 13, encloses the frame 1 in rear of the negative. A port 15 is connected to a vacuum-producing apparatus, whereby the air is exhausted from the spaces in front and rear of the negative, causing the plate 11 to press the negative against the sensitive surface. In a modification, the frame. 8 is replaced by pins having flat heads which are cemented to the negative after registration in an auxiliary apparatus and shanks which enter holes in the frame 1. In the modified form shown in Fig. 7, the frame 1<a> is hollow, and carries a number of rubber suckers 21, held in metal sleeves 23, and communicating with the chamber 19 formed by the frame. The space in rear of the negative is sealed by a. glass plate 11<a> and rubber strip 18<a>. The negative 2<a> is placed in desired position upon the suckers, and on exhausting the chamber 19 through the pipe 25, the negative is drawn down upon the suckers and securely held against movement parallel to the frame. Air is when exhausted from the spaces in front and rear of the negative, through a pipe 24, causing the plate 11<a> to press the negative against the sensitive surface (not shown). In a further modification, the suckers, and the spaces in front and rear of the negative, both communicate with the chamber 19 through separately controlled valves, and the pipe 24 is dispensed with. In all forms, either a celluloid or a glass pressure plate may be fitted, or the frame may be adapted to receive either.
Patent GB-582430-A (GB)
Title: An improved composite building strip
IPC: E04F15/022
Filed: 1944-01-10
Abstract: 582,430. Composite building strips. NEUMANN, F. H. Jan. 10, 1944, No. 457. [Class 87 (i)] [Also in Group VIII] A composite building strip for floors, weatherboarding, linings &c. comprises a surface layer 1 of wood, a middle layer 2 of sound or heat insulating material and a bottom layer 3 of nail holding material such as undressed timber all joined together by any suitable means such as glue, nails, screws, bolts, dowels &c. with the edges of the individual layers non-flush with one another so as to provide interlocking tongued and grooved means to fit complementary means on adjacent strips. The edges of the individual layers may also be tongued and grooved as at 6, 7 to interlock and one or both of the outer layers may be treated to resist moisture or insects.
Patent GB-364338-A (GB)
Title: Improvements in or relating to gas generators
IPC: C10J3/34
Filed: 1931-01-06
Abstract: 364,338. Gas producers. MARISCHKA, C, Gaswerk Leopoldau, Vienna. Jan. 6, 1931, No. 497. Convention date, Jan. 7, 1930. [Classes 51 (i) and 55 (i).] The temperature and height of the clinker layer in gas generators having stepped revolving grates, are determined by means of a chamber arranged around the periphery of the generator in the vicinity of the grate, and provided with inlet and outlet conduits for cooling fluid, the temperature of the latter at the outlet of the chamber giving an indication of the heat condition and height of the clinker layer. The rate of flow of liquid through the chamber and its initial temperature are kept constant. The hood of the grate may comprise a similar arrangement. The generator a, in the vicinity of the grate c, is provided with the cooling chamber e having an inlet f and outlet g. At the latter is placed a thermometer. The chamber e may be divided into segment-shaped compartments each having inlets and outlets ; and each compartment may be subdivided by partition walls having overflows at their upper ends. The hollow hood n of the grate has an inlet and outlet o and p respectively, for the cooling fluid, the outlet being provided with a thermometer t.
Patent GB-369685-A (GB)
Title: Improvements in and relating to luggage-holding devices
IPC: B60R9/06
Filed: 1931-01-06
Abstract: 369,685. Luggage and like holders. THOMPSON, N. A., Garthlands, Reigate Heath, Surrey. Jan. 6, 1931, No. 513. [Class 103 (ii).] Relates to means for securing luggage or other articles to luggage grids of vehicles or other forms of supporting platforms and of the kind comprising a flexible band c of canvas or like material adapted to be passed around the luggage &c. and maintained in tension. The ends of the bands c are fitted with cross-bars a, b which are attached to the grid &c. by pairs of clips d, h, and the necessary tension is applied by means of an intermediate divided bar k gripping the band and furnished at its ends with wheels or discs m by which it can be rotated. To maintain the tension on the band straps o are engaged at one end with the sides of the grid and at the other end with the spokes of the wheels or with holes n in the discs. Fixed points of attachment for the ends of the bands c other than the grid itself may be utilized.
Patent GB-827758-A (GB)
Title: Improvements in aggregate weighing and transporting apparatus
Inventor: BUDDEN DUDLEY PERCIVAL
IPC: G01G13/00
Filed: 1957-01-07
Abstract: 827,758. Weighing apparatus. ROAD MACHINES (DRAYTON) Ltd. April 2, 1958 [Jan. 7, 1957], No. 535/57. Class 143 A wheeled weighing hopper 16 is moved between a loading position, in which it receives concrete constituents from a multi-compartment hopper A and a shoot 17, and a position in which it discharges into a mixer loading skip B, by altering the inclination of rails 21 through a linkage 23, 24. The loading valves are actuated manually through cables 14, 18 and the discharge valve 30 is automatically opened by the action of an achored cable 33 on links 32 at the end of travel of the hopper. Springs 29 are provided to partly counterbalance the weight of the rails
Patent GB-493588-A (GB)
Title: Improvements in plotting instruments for the use of surveyors, draughtsmen and others
IPC: G01C17/12
Filed: 1938-01-07
Abstract: 493,588. Plotting-scales. AMARASEKERA, G. M. P. Jan. 7, 1938, No. 572. Convention date, Jan. 7, 1937. [Class 97 (iii)] A cursor 18 slides between straight edges 11 which are spaced apart by end pieces 12, scales are provided on a straight edge 11 and on an edge of the cursor 18 perpendicular to the straight edge 11, and a pointer 17 is provided on an end piece 12 with its tip at the intersection of the perpendiculars through the zeros on the two scales. Scales may be provided on both straight edges and pointers 17 on both end pieces 12. The instrument facilitates plotting points offset from a base line. Specificaton 19216/91, [Class 97], is' referred to.
Patent GB-715529-A (GB)
Title: Improvements relating to cylinder moulds for use in papermaking
IPC: D21D5/06
Filed: 1952-01-08
Abstract: 715,529. Cylinder moulds of paper-making machines. TROTMAN. W. E. K. Jan. 8, 1953 [Jan. 8, 1952], No. 575/52. Class 96. The covering of a cylinder mould of a papermaking machine is supported on a helical strip 10 with a serrated upper edge presenting equispaced, small areas 15 and lodged in grooves 13 in' bars 11 themselves supported in grooves 14 in spiders 12. Specification 674,124 is referred to.
Patent GB-109561-A (GB)
Title: Improved Drill Chuck.
Inventor: STICH WALTER
IPC: B23B31/117
Filed: 1917-01-13
Abstract: 109,561. Stich, W. Jan. 13, 1917. Chucks.-A drill chuck of the type in which the tool is gripped by a helical spring 5 is provided with means for adjusting the amount to which the drill prctudes. The end of the drill abuts on a block 8<1> secured to a nut 8, the position of which is adjusted by rotating a screw 9.
Patent GB-253820-A (GB)
Title: Improvements in boot trees
IPC: A43D3/08
Filed: 1926-01-13
Abstract: 253,820. Hammes, P. Jan. 13, 1926. Addition to 234,008. Trees.-Means are provided whereby the upper and lower front parts of the tree described in the parent Specification are readily replaced for different sizes of boots. The tree is now characterized by the addition to the screwed spindle 6, Fig. 1, of an easily removable forked member 15 carried by a nut on the end of the spindle and engaging in grooves 19, Fig. 3. in the upper part 2 of the front block. The arms of the forked member 2 slide loosely on each side of the bar 4. This bar has one or more projecting members 17 readily fixed in a detachable manner in grooves in the lower part 1 of the front block, as by projections 18 secured by a washer 21 and screw 22 to the part 17.
Patent HK-50090-A (HK)
Title: Compressed absorbent aggregate
Inventor: PIENIAK HEINZ ALFRED
IPC: A61F13/20
Filed: 1990-06-28
Abstract: The invention provides a compressed aggregate of superabsorbent and a filler. The aggregate is in the form of tablets or granules and absorbs liquid rapidly. The aggregate may be used in disposable absorbent products, such as diapers, tampons and sanitary napkins, and in containers such as colostomy bags, urinary bags, bedpans and the like.
Patent HK-62892-A (HK)
Title: Method for manufacturing a building structure
Inventor: EEDEN JOHANNES PETRUS VAN
IPC: E04G11/04
Filed: 1992-08-20
Abstract: Method of manufacturing a building structure by spraying synthetic foam and concrete against the innerside of an inflated form (1) with anchors (3) for reinforcing rods (4) attached to the foam layer (2) which attachment of the anchors (3) takes place by provinding the anchors (3) with parts (9) which can be inserted into the completed foam layer whilst the application of the concrete layers (5), which takes place layer by layer, is performed in such a way that at least one layer is applied over the basis (8) of the anchors (3) prior to attaching the reinforcing rods (4) of the concrete to said anchors (3).
Patent HK-83089-A (HK)
Title: Conductive polymer compositions containing fillers
Inventor: EVANS JOSEPH HILL
IPC: H01C7/02
Filed: 1989-10-19
Abstract: The invention relates to conductive polymer compositions comprising carbon black or graphite dispersed in a polymer. The compositions of the invention further comprise an arc-controlling additive such as alumina trihydrate. Such compositions have improved performance when subjected to electrical stress and are, therefore, particularly useful in circuit protection devices.
Patent HU-T36796-A (HU)
Title: Process for preparing imidazo-diazepine derivatives
Inventor: HUNKELER WALTER
IPC: C07D495/22
Filed: 1985-01-18
Abstract: There is presented compounds of the formula    <IMAGE>  I  wherein A together with the two carbon atoms denoted by  alpha  and  beta signifies one of the groups    <IMAGE> (1)   <IMAGE> (2)   <IMAGE> (3)  and   <IMAGE> (4)  and the dotted line signifies the double bond present in cases (1), (2) and (4) and wherein R1 signifies a 5- or 6-membered aromatic heterocyclic group or the group -C(R6)=NOR7(B), R2 signifies hydrogen and R3 signifies hydrogen or lower alkyl or R2 and R3 together signify dimethylene, trimethylene or propenylene, R4 and R5 each signify hydrogen, halogen, trifluoromethyl, cyano, nitro, amino or lower alkyl, R6 signifies hydrogen or lower alkyl and R7 signifies lower alkyl, the compound of formula I having the (S) or (R,S) configuration with reference to the carbon atom denoted by gamma  when R2 and R3  together signify dimethylene, trimethylene or propenylene, and pharmaceutically acceptable acid addition salts thereof have a pronounced affinity to the central benzodiazepine receptors and have anxiolytic, anticonvulsant, muscle relaxant and sedative-hypnotic properties.
Patent JP-H02181269-A (JP)
Title: Address recognizing system
Inventor: KATAGIRI KAORU
IPC: G06K9/72
Filed: 1989-01-05
Abstract: PURPOSE:To retrieve the addresses with high accuracy by preparing all possible meanings to an abbreviation and defining the standard forms of words and the inputted words as the recognizing candidates. CONSTITUTION:An input part 11 consists of a photoelectric transducer like a CCD, etc., and converts the pictures drawn on a mail into the picture information '0' and '1'. These picture information obtained via the part 11 are supplied to a character detecting/recognizing part 13. The part 13 extracts the information forming characters out of the picture information and recognizes each character. Based on this recognizing result, a word recognizing part 15 recognizes words by means of a 1st data base 17. In this word recognizing process, the recognizing result is not merely obtained but plural recognizing candidates are obtained in the order of higher degrees of likelihood. Thus plural words are outputted as the recognizing candidates. An address recognizing part 21 recognizes addresses by means of a 2nd data base 19 after the words are recognized. Then the recognized addresses are outputted via an output part 23.
Patent JP-H06200324-A (JP)
Title: Production of thick steel plate for structure excellent in low temperature toughness and high in young's modulus
Inventor: NOMIYAMA YUJI
IPC: C21D8/02
Filed: 1993-01-05
Abstract: PURPOSE:To refine the structure in the full thickness of a thick plate and to simultaneously improve its low temp. toughness and Young's modulus, at the time of rolling the steel plate from a specified temp., by regulating the rolling reduction per pass into specified value or above. CONSTITUTION:In the process in which a cast slab or a slab of the Ar3 point or below is heated by external heat or working heat or both, rolling is started from the Ac3 point or below and the rolling is completed at less than the Ac3 point, the rolling is executed at >=0.2 rolling reduction by true strain per pass. After the completion of the rolling, it is successively subjected to accelerated cooling to <=650 deg.C at >=5 deg.C/sec cooling rate. Or, after the completion of the rolling, hardening and tempering are executed. Namely, by utilizing the working heat generated by high-reduction rolling, the recovery of ferrite and the promotion of recrystallization by the working in the process of the heat generation are executed. Furthermore, the recrystallization of austenitic grains is executed, by which the ultrarefining of the grains over the full thickness of the plate thickness is made possible.