baber/WOPTO huggingface dataset:
Patent GB-1240938-A (GB)
Title: Dc motor servo system
Inventor: TSUJIKAWA KAZUNOBU
IPC: H04N5/78
Filed: 1969-03-13
Abstract: 1,240,938. Automatic speed control. SONY CORP. March 13, 1969 [March 13, 1968; March 14, 1968], No.13323/69. Heading G3R. A D.C. motor 5 drives a tachogenerator 13, the output of which is used to regulate the speed of the motor, and a pulse generator 15, whose output is indicative of the phase of motor shaft and is phase compared with a reference signal S2 to provide a phase error signal which is then used to modify the speed regulator so as to maintain synchronism between the motor shaft and the reference signal S2. The tachogenerator 13 is in the form of a toothed magnetic wheel and pick-up Fig. 1 (not shown) and delivers a signal whose frequency depends on the speed of the motor. This signal is applied to a limiter 25 and then to a demodulator 26 in the form of a low-pass filter; this delivers an A. C. signal S 1  whose amplitude varies with the speed. The signal S 1  is clamped by a diode 28 to a set D.C. level V 0  and applied to a circuit 21 which passes only that part of the signal above a fixed voltage level V. The resultant signal is amplifed and applied to the motor 5. If the motor speed rises the amplitude of signal S 1 <SP>11</SP> falls and less energy is supplied to the motor. The pulse generator is in the form of a magnet rotating with the motor shaft to give a pulse once per revolution in the pick-up 15. The reference pulses S2 are integrated in a Miller circuit 31 to provide a repetitive ramp waveform which is applied to a gate 38 controlled by the pulses S5 from generator 15. The gate 38 samples the ramp waveform and thus delivers to a capacitor 39 a signal whose amplitude varies with the phase error. This is filtered and used to adjust the clamping level V 0  of diode 28. If phase error increases V 0 <SP>1</SP> increases and more energy is supplied to the motor 5. In an alternative embodiment Figs. 5, 6 (not shown) the speed signal, squared by a bi-stable circuit, is applied to a monostable circuit, the input and output of which are compared in an AND gate to give a pulse signal whose pulse with varies with the speed error. The phase error signal S 6  is used to vary the time constant of the monostable so that the pulse width also depends on phase error. The reference signal S 2  may be the vertical synchronizing pulses of a video signal to be recorded on an oblique scan tape recorder driven by the D.C. motor 5.
Patent GB-663958-A (GB)
Title: Improvements relating to cutting devices for ticket issuing and like machines
IPC: B26D3/12
Filed: 1949-05-19
Abstract: 663,958. Ticket-issuing machines. WESTINGHOUSE GARRARD TICKET MACHINES, Ltd., DIXON, S. M., and DAVIES, J. E. March 29, 1950 [May 19, 1949], No. 13359/49. Class 106 (iii). [Also in Group VIII] A ticket-issuing machine having a guillotine type of cutter for severing the tickets from a main strip, has one of the main blades composed of two interchargeable parts 3 each having an edge 2 arranged at an oblique angle to the other main blade 13, and each being independently sprung into contact with the other main blade 13, the cutting edge 2 of each interchangeable part 3 being ground square across its. thickness in such a manner that these two parts can be reversed and interchanged to bring alternative cutting edges into operation. One or more gaps 15 may be provided in the cutting edges, a gap 16 also being provided between the adjacent ends of the two interchangeable parts, whereby the cut is not continuous but leaves small connections that may afterwards be torn by hand. As the cutters close, the ticket strip is gripped by means behind the blades to hold it firmly whilst the perforated ticket is torn off. Specification 631,626 is referred to.
Patent GB-1302051-A (GB)
IPC: A61K31/335
Filed: 1970-03-19
Abstract: 1302051 Partial hydrolysis of steroid glycosides and some products thereof SHIONOGI & CO Ltd 19 March 1970 [19 March 1969] 13406/70 Heading C2U Steroids of the formula (wherein X is a furyl, butenolide or butanolide group; R 1  and R 2  are each H, OH or acyloxy; R m  is H or acyl and is the same or different for each sugar unit; and n is an integer of 1 or more) are prepared by reacting steroids of the formula with a glycol cleaving agent followed by optional reduction and then hydrolysing the resulting steroids of the formula wherein Z is  or an acetal or acylate thereof respectively. Alternatively some of the above products, which are novel and have the formula (wherein R and R<SP>1</SP> are each H or OH and at least one must be OH and n<SP>1</SP> is 1 or 2) and their novel esters, are prepared by reduction of other of the above products of the formula or esters thereof. The esters may also be prepared by acylation of the free ols. Other novel products are digitoxigenin-bis-digitoxoside 3<SP>1</SP>- acetate and 3<SP>11</SP>-acetate. The novel steroids have cardiotonic activity and may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-542946-A (GB)
Title: Improvements in or relating to surgical splints
IPC: A61F5/058
Filed: 1940-08-24
Abstract: 542,946. Surgical splints. HAYES, W. Aug. 24, 1940, No. 13418. [Class 81 (ii)] A splint e.g. a leg splint, comprises two panels a, b of plywood connected by canvas, oiled silk &c. k which is padded and covers both k sides of each splint. A roll of bandage is threaded through a hole h and is utilized in securing the splint in position by winding it round projections e. A lateral flap l may be used, and also an extension with slots m, n in securing round the body and beneath the arms. The canvas k may be replaced by straps. Two pairs of panels connected by the canvas k may be used in an arm splint. The panels may be of wood, metal, synthetic resin, vulcanite &c. They are so shaped that they may be used in either leg or arm.
Patent GB-396513-A (GB)
Title: Improvements in or relating to the binding of books or the like
IPC: B42D1/06
Filed: 1932-05-10
Abstract: 396,513. Bookbinding. EVERSHED, W. J. and EVERSHED, C., (trading as EVERSHED & CO., J.), 46, Fairfield Road, Bow, BARRETT, W. J. and BARRETT, W. G., 580, Romford Road, Manor Park, both in London. May 10, 1932, No. 13458. [Class 16.] In a book of the type wherein the back edges of the leaves are provided with holes through which the binding element is passed the leaves a, and covers b, if desired, are bound together by means of one or more lengths of elastic material e, passed through all the holes d in the leaves, and in the cover if desired. The elastic material may be composed of one or more strands of indiarubber, either raw or covered with a woven material, or it may consist of a metallic helical spring. The free ends el of the elastic material are secured to one of the covers b by means of glue &c. The book covers are stiff and provided with a backing-strip. The rear edges of the leaves a are preferably glued, and each leaf may be divided by perforations into a plurality of sections.
Patent GB-661714-A (GB)
Title: Improved supporting device for table tennis nets
IPC: A63B67/04
Filed: 1949-05-20
Abstract: 661,714. Table-tennis nets. HARDIMAN, D. J., (trading as CASTLE ENGINEERING PRODUCTS). May 19, 1950 [May 20, 1949]. No. 13498/49. Class 132 (ii). A support for a table-tennis net 13 comprises an L-shaped holder 6 the horizontal limb 7 of which slides in a sleeve 9 fixedly embracing also the upper limb 2 of a U-shaped table-clamp 1, the limb 2 also carrying in a hole 10 a collar 11 embracing the limb 7 and urged by a spring 14 to prevent inward motion of the holder but to allow outward motion. In a modification, the limb 2 carries a cam which can be turned by hand to jam the limb 7 in adjusted position. The net may be tied to the holder or may be connected by springs 15 to a sleeve 16. Alternatively the springs 15 may carry hooks for engaging the holder. A stop 17 is provided on the limb 7.
Patent GB-1222798-A (GB)
Title: A process for the production of cast iron
IPC: C21C1/08
Filed: 1969-03-14
Abstract: 1,222,798. Producing cast iron. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. March 14th, 1969 [March 20, 1968], No.13536/69. Heading C7D. Super-heated molten iron is treated with a nucleating agent consisting of highly dispersed silica produced by wet precipitation or pyrogenically, or with highly dispersed mixed oxides containg 90% to 98% of silica and from 2% to 10% of Al 2 O 3  or TiO 2 . Preferably the agent is added at a rate of 10 gm. to 100 gm. per ton of iron; it may be added in a container also containing a bursting agent and a weighting agent.
Patent GB-938504-A (GB)
Title: Tufting machines for the simultaneous insertion of pattern threads in superposed fabrics
IPC: D05C15/00
Filed: 1960-04-19
Abstract: 938,504. Sewing; sewing machines. P. H. ESPINOSA, and F. D. FRIAS. April 19, 1960, No. 13575/60. Class 112. In a machine adapted to perform free loop stitching or tufting simultaneously along adjacent lines from opposite sides of a base fabric, the upper and lower needles reciprocate parallel with one another and are spaced transversely of the line of stitching, and loops in adjacent lines of stitching are staggered relatively to one another. The machine, as shown, joins together a pair of superposed fabrics 201, 202 by two adjacent lines 203, 204 of freeloop stitching. The stitches follow a predetermined pattern line, and the fabrics are subsequently separated to provide a thread-marked pattern on each fabric. The machine comprises an upper body 101 and a lower body 102 fastened together by screws 103. A cover 104 is fastened to the upper body by a screw 105. A lower shaft 106, driven by a pulley 122, is coupled by a belt 107 to an upper shaft 108. A lower needle bar 115, slidable in a sleeve 127 and carrying an upwardly directed needle 117, is coupled by a connecting rod 113 to a crank-pin 111 carried by shaft 106. An upper needle bar 116, slidable in a sleeve 133 and carrying a downwardly-directed needle 118, is coupled by a connecting rod 114 to a crank-pin 112 carried by shaft 108. A reciprocating lower looper 119, co-operating with -needle 118, is secured by a screw 163 to a slidable block 162 coupled by a connecting rod 161 to a swinging arm 155 which carries a follower pin co-operating with a cam 153 on shaft 156. An upper looper 120, co-operating with needle 117, is secured by a screw 174 to a vertical bar 173 having a laterally-projecting bracket journalled on the presser bar 135 and pressed against a block 139 on the latter by the presser bar spring 138. Bar 173 is coupled by a link 171 to a swinging arm 166 carrying a follower pin 165 co-operating with a cam 164 on shaft 108, rotation of which thereby serves to oscillate bar 173 about the axis of the presser bar 135. Raising of the latter, either by a hand lever 140 acting on block 139, or by a pedal-actuated linkage 142, 143, 146 acting on block 139, also serves to raise the looper 120. A cam 148 on shaft 106 co-operates with a follower pin 149 on the lower arm of a twoarmed lever 150 for oscillating the latter. The upper arm carries a thread pull-off member 152 positioned between the thread tensioner 191 and the needles. The work support plate comprises a main portion secured to the base 102 by screws, and a front portion in the form of a flap which pivots upwardly, against spring bias, to give access to the lower needle. The feed dog 121 is fixed by a screw 190 to a feed bar 188 to which feed-lift movement is imparted by a cam on shaft 106. An arm 184, pivoted at 189 to the feed bar 188 and at 186 to the base 102, is formed with a curved slot adjustably engaged by a stud 185 on a pitman 183 operated by an eccentric 182 on shaft 106. Adjustment of stud 185 thereby serves to vary the feed stroke.
Patent GB-585212-A (GB)
Title: Production of 1-n-tetraacetyl-d-ribitylamino-2-phenylazo-4, 5-dimethylbenzene
IPC: C07C233/00
Filed: 1943-08-20
Abstract: 1-N-Tetraacetyl-d-ribitylamino-2-phenylazo-4 : 5-dimethylbenzene is prepared by reacting tetraacetyl - 4 : 5 - dimethylphenyl - d - ribamine with an aqueous solution of a phenyl diazonium salt, e.g. the chloride, sulphate or nitrate, in a predominant proportion of a medium consisting of glacial acetic acid, dioxan or ethyl alcohol, said solvent being so adjusted as to be only mildly acid.  The product may be recovered by pouring the reaction mixture into excess of water and extracting with a water-immiscible solvent, e.g. chloroform, or by neutralizing with an ethyl alcoholic solution of sodium hydroxide, filtering and evaporating the filtrate to dryness. The product, which is useful for the preparation of riboflavin, may be deacetylated by warming in methyl alcohol solution containing a small amount of sodium methylate.  Specifications 457,178, 545,360 and 551,491 are referred to.
Patent GB-999167-A (GB)
Title: Improvements in and relating to carbon brushes for electric generators and the like
Inventor: HURRELL RICHARD GEORGE
IPC: H01R39/36
Filed: 1964-04-02
Abstract: 999,167. Direct connections. MORGANITE CARBON Ltd. July 9, 1964 [April 2, 1964], No. 13620/64. Heading H2E. An electrical contact brush 2 consisting of a block of carbon has a transverse hole through one end into which one end of a flexible conductor 1 is inserted and a metal sleeve 3, arranged on the end of the conductor, has a flange 11 in abutment with the block, the metal strands of the conductor at the other end of the sleeve being splayed radially outwardly beyond the sleeve and soldered thereto to form a head 10 in abutment with the block. The internal wall surfaces of the hole 5 and the adjacent surface of the block are coated with metal to which the sleeve and head are soldered. The hole 5 has a counterbore 8, 9, at each end thereof, and the flange of the sleeve and the head formed on the conductor are located in these counterbores.
Patent GB-164725-A (GB)
Title: Process for obtaining deposits of iron by electrolysis
IPC: C25C1/06
Filed: 1921-05-13
Abstract: 164,725. Soc. d'Electro-Chimie et d'Electro-Metallurgie. June 9, 1920, [Convention date]. Iron, depositing.-An electrolytic contains an iron salt, aluminium chloride, and hydrochloric iron chloride solution. Hydrochloric acid may be added to acid. The aluminium chloride may be produced by dissolving the metal in iron chloride solution. The hydrochloric acid is added either during or before electrolysis, to re-dissolve precipitated alumina or to prevent its precipitation. A suitable solution contains 200-250 gr. of iron and 5-15 gr. of aluminium per litre. Current densities of 5-40 amperes per sq. dcm. may be used, and the temperature may be 75-80‹ C.
Patent GB-611592-A (GB)
Title: Improvements in or relating to the manufacture of laminated materials
IPC: D21H27/26
Filed: 1946-05-06
Abstract: 611,592. Compound sheet materials. BAKELITE, Ltd., KNEWSTUBB, N. W., and JENKINS, C. N. May 6, 1946, No. 13702. [Class 140] Laminated material with a resilient, chemically-resistant surface is made by superposing fibrous sheets treated with a heat-hardenable resin, placing on one or both sides of the stack so formed a sheet of a plasticized polymer or copolymer of vinyl chloride, and subjecting the assembly to heat and to a pressure above 1000 lbs. per sq. inch. The fibrous sheets may be paper, fabric, or wood veneer, the resin may be phenol-, urea-, thiourea-, or aminotriazine-aldehyde, the copolymer may be that with vinyl acetate, and the plasticizer may be tricresyl phosphate, dibutyl or dioctyl phthalate. The outermost sheet of fibrous material may contain an ornamental or advertising design beneath a transparent or translucent sheet of the polymer, or may be coated with an adhesive to ensure adhesion of the surface sheet, e.g. an adhesive containing a copolymer of vinyl chloride, vinyl acetate, and, if desired, maleic anhydride. The assembly may contain, in the order stated; a sheet of plasticized vinyl chloride/ acetate copolymer, a sheet of alphacellulose paper impregnated with ureathiourea-formaldehyde resin and coated on the side next to the copolymer sheet with a copolymer of vinyl chloride, acetate, and maleic anhydride, a sheet of printed cambric impregnated with urea-formaldehyde resin, a sheet of white pigmented paper treated with urea-formaldehyde resin, 30 sheets of kraft paper impregnated with phenol-formaldehyde, and sheets of white paper, cambric, paper, and copolymer as on the other side. The material is suitable for trays, table and bar tops, or liquidsealing devices.
Patent GB-1507344-A (GB)
Title: Connections
IPC: H01R12/82
Filed: 1975-04-03
Abstract: 1507344 Clamps RAYCHEM CORP 3 April 1975 [4 April 1974] 13794/75 Heading E2B [Also in Division H2] Connecting elements 9 [see Division H2] temporarily grip guide 20 during assembly by virtue of collars 18 made of thermally actuable memory metal.
Patent GB-478481-A (GB)
Title: A method of and means for obtaining synchronism between a picture camera and a sound recording or reproducing device
IPC: G03B31/00
Filed: 1937-05-18
Abstract: 478,481. Electric signalling systems. TOBIS TONBILD - SYNDIKAT AKT.-GES. May 18, 1937, No. 13820. Convention date, May 18, 1936. Drawings to Specification. [Class 40 (i)] Two shafts, associated respectively with a film projector or picture recorder and a sound reproducer or recorder, are maintained in synchronism by an electric escapement comprising a commutator mounted on one shaft, a magnet energized by pulses produced by the commutator and an escapement operated by the magnet.
Patent GB-276448-A (GB)
Title: Improvements in power transmitting mechanism
IPC: F16H48/12
Filed: 1926-06-02
Abstract: 276,448. Cosserat, W. A. P. June 2, 1926. Differential or balance gearing; variable-speed epicyclic gearing; reversing-gearing.-A rotary coupling permitting axial disalignment comprises radial arms 10 on one member slidably engaging blocks 8 or the equivalent which themselves may slide in or on rigid guides 7 located in triangular, rectangular &c. manner upon the other member. The device is applied to power transmitting mechanisms such as differential, variable speed and reversing gears. As applied to a differential or balance gear, Fig. 1, a casing 13 driven by worm gearing 17, 16 carries a pair of stub shafts 12 intergeared by pinions 15 and connected respectively to the divided shaft ends 2, 3 bv couplings of the form shown in Fig. 2, the radial arms 10 being carried on the ends of the stub shafts and the rigid guide members 7 by flanged discs or casings 1 with cover plates 5 on the shafts 2, 3. By substituting a brake drum for the worm drive, an arrangement as in Fig. 1 may serve to transmit reversed rotation from one shaft to another in or out of line therewith when the drum is braked. In Fig. 6, the general arrangement of Fig. 1 is duplicated, an internal gear 15<a> being, however, substituted for one of the external pinions 15 in the left hand carrier. The carriers are controlled by rings 21 slidably feathered thereon and provided with peripheral teeth 22 adapted to engage internally toothed rims 23 carried by the disc or casing members 1. When the teeth are in engagement a direct drive is transmitted, there is no positive drive when a ring 21 is free; when the right hand ring is braked the direction of drive is reversed whilst when the left hand ring is braked the drive is transmitted through the gears 15, 15<a>, in the same direction but at a different speed ratio. The casing parts 1 may be filled with oil.
Patent GB-1140195-A (GB)
Title: Fluid driven vibrator
IPC: B06B1/18
Filed: 1966-03-29
Abstract: 1,140,195. Vibratory mechanisms. VIBRATOR MFG. CO. 29 March, 1966 [29 March, 1965], No. 13938/66. Heading F2X. A fluid driven vibrator comprises a housing 12 provided with an internal endless track 20, a disc-shaped rotor having a surface 45 for riding upon the track, a fluid inlet 52, a fluid outlet 56, and a fluid passage 60 in communication with the inlet to enable the rotor to be started in different mounting positions of the vibrator. The by-pass may be formed by a groove 60 in the periphery of the rotor or by a groove in the track 20 and the housing is closed by a pair of side plates 22 provided with apertures to receive a clamping bolt 28. To provide cavities of different widths in the housing interchangeable side plates having shoulders of different widths and a label plate 34 are provided. Interchangeable rotors of different widths and diameters may also be provided and the effective internal diameter of the rotor may be varied by the use of detachable rings. Steel or bronze or other metals that burnish or work harden or plastics or ceramic material may be used for the rotor while the housing 12 may be forged or cast in high tensile steel or iron, the track 20 being bored, reamed or broached, and if necessary, finish ground. The diameter of the outlet opening and the width of the groove 60 are equal to twice the diameter of the inlet opening while the depth of the groove equals half the diameter of the inlet opening.
Patent GB-1390744-A (GB)
Title: Gearing systems
IPC: B63H23/02
Filed: 1973-03-23
Abstract: 1390744 Universal joints; toothed gearing MANNESMANN-MEER AG 23 March 1973 [28 March 1972] 14052/73 Headings F2U and F2Q A central helically toothed gear 5 engaging an annular array of layshaft gears (10, 11), Fig. 1 (not shown), e.g. fixed to layshafts (12, 13) fixed to gears (14, 15) engaging another gear (19) coaxial with the gear 5- is connected to its shaft 1 by a toothed coupling 6, 7 allowing axial and universal relative movement in opposition to resilient means 8, 9, 26, 27. In Fig. 3 the means 8, 9 comprise flexible tubes filled with liquid engaging grooves on parts 22, 25 fixed to the shaft 1, and rings 23, 24 bearing on the gear 5.