baber/WOPTO huggingface dataset:
Patent GB-225129-A (GB)
Title: Improvements in saxophone and like mouthpieces
IPC: G10D9/02
Filed: 1924-05-21
Abstract: 225,129. Arthur, P. May 21, 1924. Saxophones, &c. - A mouthpiece for saxophones and like instruments consists of two inner pieces secured together and encased in a moulded covering. The inner pieces 8, 9 are of metal, the piece 8 being formed on an automatic screw machine or by die casting, and the part 9, which has a non- circular bore, by die casting. The parts 8, 9 are screwed together at 10, a groove 12 being formed between them into which, as well as into a groove 11, the moulded outer covering 13 of Bakelite, rubber or celluloid, enters. The reed 16 is held by an ordinary ligature 14.
Patent GB-1185531-A (GB)
Title: Improvements in and relating to Adjusting Electrical Circuits
IPC: H03F3/45
Filed: 1967-03-17
Abstract: 1,185,531. Circuit assemblies; resistors. INTERNATIONAL BUSINESS MACHINES CORP. 17 March, 1967 [30 March, 1966], No. 12523/67. Headings H1R and H1S A micro-module circuit comprising active and passive elements is adjusted to a predetermined D.C. operating point by trimming one of the elements to alter its impedance, monitoring the D.C. output current of the circuit and terminating the impedance altering when the operating point of the circuit reaches a predetermined D.C. operating point. In one embodiment, Figs. 4, 5, a D.C. differential amplifier is provided with three printed trimming resistors 28, 29, 24. To eliminate mismatch in the collector currents of transistors 22, 23 caused by inherent differences in the transistor characteristics a precision resistor 32 having a value equal to that of a sense line is connected between the bases and a voltmeter 33 is connected between the collectors, the voltmeter being shunted by two equal precision resistors 34, 35. If the collector current of one of the transistors is greater than the other this is detected by voltmeter 33. A monitoring circuit including amplifier 38 produces an output signal which controls abrasive control 41 of trimmer 42 that regulates flow of abrasive material from nozzle 43 to cut a path or notch in variable resistor 28, assuming that the collector current from 22 is greater than that from transistor 23, to increase the resistance value of 28 until the voltage drops across standard resistors 34, 35 are equal, forcing the abrasion process to halt. The collector currents are then balanced. In order to adjust the total collector current of the amplifier to its predetermined D.C. operating point the circuit of Fig. 5 is employed whereby the voltage drop across an external precision resistor 36 is compared with a standard reference voltage from Zener diode 46 and the value of resistor 24 is trimmed until the drop across resistor 36 is the same as the voltage drop across Zener diode 46 forcing cessation of the abrasive mechanism 42. In order to compensate for thermal disturbances caused during the abrasive operation a constant current source and a low value compensating resistor are connected in parallel with the voltmeter of Fig. 4 causing a compensating voltage to back out some of the voltage monitored Fig. 8 (not shown). The micro-miniature module comprises a ceramic substrate on which is silk screened a metallic conductive pattern and then trimming resistors 24, 28, 29 are silk screen printed on the top surface of the substrate, Fig. 6 (not shown), and resistors 26, 27 are printed on the bottom surface, Fig. 7 (not shown). The two circuits are interconnected by pins passing through the substrate and the resistors trimmed to their nominal values, that of 24 being well below its expected final value. Transistor chips are then fastened to the top surface of the substrate.
Patent GB-452165-A (GB)
Title: Improvements relating to hydraulically operated machine tools
IPC: B23Q5/26
Filed: 1935-04-26
Abstract: 452,165. Hydraulic transmission of power. ARCHDALE & CO., Ltd., J., Ledsam Street, Birmingham, and WEGERDT, F., 2, Kyffhõuserstrasse, Chemnitz, Germany. April 26, 1935, No. 12526. [Class 69 (ii)] In hydraulically operated machine tools comprising a main cylinder supplied by a variable delivery pump, an auxiliary pump supplies or draws from, at a regular rate, which may be adjusted, an auxiliary cylinder associated with the reciprocatory part of the machine, the variations of pressure in said auxiliary circuit being utilized to regulate the output of the main pump. The invention, as applied to the machine described in Specification 452,166, comprises a main cylinder d, movable on a fixed piston e, and supplied from a main pump 1, which may be constructed as described in Specification 424,609, [Group XXVIII]. The reciprocating work table a carries an auxiliary cylinder 20 movable on a fixed piston 20a and connected to the reversible auxiliary pump 18. The auxiliary pump pressure acts on a valve 22 against a spring 22a, so that when the table speed varies, the valve 22 is moved to allow liquid from the auxiliary pump or another source to pass from a pipe 23 and reduce or increase the output of the pump 1 by action on a plunger 27 or 28. The pump 18 is reversed by liquid acting under pilot valve control on a plunger 32a or 33a, and its output may be varied by liquid acting on a plunger 34. When the table a is rapidly traversed, the pump 1 is given its maximum output by liquid acting on a plunger 41, and a valve 42 is actuated to place the pump 18 and cylinder 20 into communication with a liquid tank.
Patent GB-884183-A (GB)
Title: Improvements relating to window envelope machines
Inventor: FORBES HUGH MACLACHLAN
IPC: B31B19/00
Filed: 1957-04-17
Abstract: 884,183. Feeding sheets. CARLAW (ENGINEERS) Ltd., DAVID. April 17, 1958 [April 17, 1957], No. 12544/57. Class 100(1) [Also in Group XVII] A machine for making window envelopes with transparent patches comprises a knife 30, 38 (Fig. 1) to which patch material 36 is fed, a knife driving clutch consisting of a driving component 60, (Fig. 2) which is geared to the gearing of the machine, a driven component 61 with which the knife 30 is connected, a pawl 72 on the component 61 which is engageable with the component 60 and a clutch-releasing stop 80 adapted to be advanced temporarily into engagement with the pawl to disconnect it and hold it together with the driven component 61 and knife 30 at rest in a predetermined position. The knife comprises a fixed blade 38 and a rotary blade 30 fast on a shaft 45 which is provided with a gear for driving the patch material feed rollers 31, 32. The clutch releasing stop 80 is actuated when an absence of feed of envelope blanks is detected. The envelope blanks 10 are fed from a stack by a known suction device including a roller 15 which cooperates with a series of co-axial discs, the outermost 11 of which are circular, the others being cut away at 12. The blanks are forwarded over rollers 17 and by rollers 18, 19 to a gumming roller 20 and to the patch applying roller 39 which takes the patch cut by the knife 30, 38. The driven clutch component 61 is also fast on the shaft 45 and the driving component 60 is rotatably mounted on the shaft 45. An electrically conductive roller 91 co-operates with electrically conductive segments 90 on the discs 11 so that in the absence of an envelope blank to insulate the two parts a circuit is completed to energize a relay 93 the contacts 94 of which complete a circuit to a solenoid 97. The armature 98 of the solenoid is connected to the clutch releasing stop 80 and on energization of the solenoid the stop 80 is projected into the path of the pawl 72 to lift it and disconnect the two clutch components. The stop 80 is provided with a notch which is engaged by a spring-pressed plate 100 (Fig. 8) when the stop is projected. The plate 100 is retracted by engagement of a pin 103 on a ring 104 on the driving component 60 of the clutch with a pin 105 on the plate. Engagement occurs at the same time that in the absence of an envelope blank contact is made between the parts 90, 91. Thus the stop 80 remains in operative position until the feed of blanks is resumed. Specification 884,182 is referred to.
Patent GB-830322-A (GB)
Title: Improvements in or relating to friction articles
IPC: F16D69/00
Filed: 1958-04-21
Abstract: 830,322. Friction clutches. BENDIX AVIATION CORPORATION. April 21, 1958 [April 24, 1957], No. 12599/58. Class 80 (2). [Also in Groups II and XXXIV] A friction element for clutches comprises a sintered mixture of metal and ceramic material characterized by having an outer layer 18 formed of metal and ceramic material and a bottom layer 16 consisting of powdered metal sintered to the outer layer 18, the bottom layer 16 having an integral rib or ribs 20, extending therefrom and used for the attachment of the friction element to a supporting member. This form of construction enables a ceramic metal friction element, such as that described in Specification 740,820, to be used without a containing cup, the sides of which may, under certain conditions, tend to score the opposing friction surfaces. In one form of construction, the layers 16 and 18, in powdered form, are compacted at about 40,000-100,000 p.s.i. and heated to sinter at 1200-2050‹ F. and finally coined at pressures up to 100,000 p.s.i. Various compositions for the two layers 16 and 18 are given of which the principal constituents are copper, mullite, silica, bismuth, molybdenum, nickel, iron, graphite and tin. The Figure shows a friction element secured to the rim 24 of a brake shoe, the rib part 20 being secured in position by welding.
Patent GB-1045472-A (GB)
Title: Bituminous sheet
Inventor: KREMER HENRY AUSTIN FRANCIS LE
IPC: C09J7/22
Filed: 1963-03-29
Abstract: A sound damping supported or unsupported bituminous sheet is bonded by one indented, recessed and/or perforated face coated with an acrylate pressure-sensitive adhesive to a sheet metal panel of a motor vehicle, washing machine, spin drier, dish-washer, sink, transformer, cistern, railway carriage or locomotive or to a pipe. The sheet may be supported by natural or synthetic fibres or bituminised felt and may comprise oxidized bitumen, meal or fibrous asbestos and/or slate powder with or without a softening agent or fluxing oil together with a synthetic thermo-plastic resin, e.g. polyolefin, p.v.c., vinylchloride copolymer or rubber.  The adhesive is fixed by holding the metal panel and sheet at 150-200 DEG C. for 3-5 mins.  The recesses and indentations in the adhesive face are in communication with the edge to exclude air on bonding and the sheet may be bonded to oily panels.
Patent GB-903405-A (GB)
Title: Improvements in or relating to closures for containers
Inventor: PATERSON GAVIN DYKES
IPC: F16J13/08
Filed: 1959-04-14
Abstract: 903,405. Closures for resisting fluid pressure. PORTER CO. (GREAT BRITAIN) Ltd., H. K. April 13, 1960 [April 14, 1959], No. 12663/59. Class 123 (1). A closure assembly, e.g. for the fuel tank of an aircraft, comprises an annular seat 2 adapted to be secured within an opening in the tank and for sealingly receiving a filler cap 1, a spider-like locking piece 6 being fixed to the stem 13 of a valve unit 12, the cylindrical head 14 of which is rotatably fitted into the bore 11<SP>1</SP> in a central boss 10 on the inner face of the filler cap 2 and the stem 13 accommodating a pressure relief valve 26. A plate 7 of the cap 1, adapted to seat in a recess in the seat 2, carries an O-ring 4 for co-operating with an annular flange 3 which tapers inwardly from the seat 2 and is furnished with three inwardly directed, equi-angularly spaced lugs 5 which are adapted to lockingly engage with cam-like end portions 18 on the ends of radial arms 17 extending from a boss 16 on the locking piece 6 which is secured by a nut 20. The valve stem 13, provided with a sealing ring 21 where it extends through a bore 11 in the boss 11, has an axial bore 28 which slidingly receives a valve shank 27 and an 0- ring valve seat 30 for a valve head 29 on the shank 27, the valve being urged into its closed position by a compression spring 31. The valve shank 27 projects into a recess 24 in the valve head 14 to co-operate with a handle 22 pivoted therein so that when the latter is raised from its stowed position in a recess 22<SP>1</SP> in the plate 7, preparatory to removing the cap 1, the valve 26 is opened to relieve the pressure in the container, the cap then being unlocked by partially rotating the handle 22. A pin 35 on the head 14 projects into a slot 36 in the boss 10 to limit the rotation of the valve unit 26 and locking piece 6 with respect to the plate 7 of the filler cap 1.
Patent GB-284512-A (GB)
Title: Improvements in apparatus for loosening cut tobacco
IPC: A24B3/06
Filed: 1927-05-11
Abstract: 284,512. Koerner, E. May 11, 1927. Tobacco. - In an apparatus for loosening cut tobacco, a loosening drum is provided with a dust-extracting installation adapted to remove simultaneously the fine tobacco dust and the coarse impurities such as sand. In one form, Figs. 1 and 3, tobacco from a cutting machine a drops into a pipe b leading to a hopper d at one end of a loosening drum c. At the other end of the drum, a pipe e leads to a fan f connected by a pipe g to a filter comprising hose pipes h connecting an upper box h<1> and a lower dust box h<2> Tobacco is drawn bv the air current into the drum c, in which it is loosened, and the sand &c. is screened off. The fine dust from the tobacco passes off with the air current to the dust filter h, in which the air is faltered and returned to the work room. For tobacco which is to be heated before the loosening, a roasting drum may be interposed between the cutting-machine, and the drum c. The tobacco is withdrawn at i from the drum c through an air trap, Fig. 4, comprising a rotating cell wheel n in an enlargement p of the outlet pipe. In order to prevent jamming, an air inlet q, controlled by a slide q', admits an air current passing over the edge of the blade of the wheel. In a modification, the trap comprises a pipe provided with two slides which are opened alternately.
Patent GB-969871-A (GB)
Title: Improvements in cabinets for displaying and dispensing merchandise in packet form
Inventor: PEYSER HEINZ ALFONS
IPC: A47F1/10
Filed: 1962-04-04
Abstract: 969,871. Cabinets; shop fittings. ARTISTIC WOODWORK Ltd. April 3, 1963 [April 4, 1962], No. 12856/62. Headings A4B and A4T. A cabinet for displaying and dispensing a number of tiers of packets comprises a rectangular frame open at the front and having ends a<SP>1</SP>, a back a, a transverse bar B and a plurality of division plates C movable to adjust the width of compartments D and having flanges c which serve as a support for a pile of packets d in a compartment, the flanges c being inclined downwardly to facilitate removal of the bottom package d<SP>1</SP>. Vertical flanges c<SP>1</SP> hold the pile of packets above the transverse bar B.
Patent GB-848808-A (GB)
Title: Paper
IPC: C09J7/21
Filed: 1958-04-23
Abstract: Paper is internally bonded with a copolymer formed from (a) 60 to 95% of conjugated diene(s) and/or chlorodienes of 4 to 10 C atoms, e.g. butadiene, isoprene or chloroprene, (b) 1 to 30% of vinyl compound(s) such as acrylonitrile, styrene, or esters of acrylic or methacrylic acid formed from aliphatic alcohols of 1 to 10 C atoms, e.g. methyl methacrylate, and (c) 1 to 39% of one or more ethylenically unsaturated monocarboxylic acids of the formula: <FORM:0848808/IV(a)/1> where either R1 or R2 represents an alkyl radica of 6 to 9 carbon atoms or a halogen or hydrogen, and the other, hydrogen, e.g. crotonic, cis-2-butanoic, sorbic, cinnamic or acrylic acid, &c.  A major proportion of the carboxylic groups may be cross-linked with polyvalent cations, e.g. from zinc oxide or sodium aluminate.
Patent GB-542711-A (GB)
Title: Improvements in cages or cradles for use in connection with medical heat treatment
IPC: A47C21/04
Filed: 1940-08-14
Abstract: 542,711. Therapeutic heat treatment. SURGICAL MANUFACTURING CO., Ltd., and GROVER, H. W. Aug. 14, 1940, No. 13005. [Class 81 (ii)] Heat treatment cages are constructed in a manner which enables a number of such cages to be nested one within another for ease of storage. The cage comprises a frame 1 covered with wire mesh 4, so that the whole may be enclosed by blankets, and has heating lamps 6 set at the top of the arch. On the outside of each frame a projecting loop 13 is provided at each side so that an identical cage may be stood over it during storage. A cleat 19 is provided to accommodate the cable 9 when the appliance is stored and to allow for the possibility of a number of cages being in use at the same time each may carry a socket 24 into which a further appliance may be connected.
Patent GB-1139065-A (GB)
Title: Apparatus for removing a tightly encircling band from around the periphery of a coil of material
Inventor: CHELLIS RICHARD CARMEN DE
IPC: B21C47/34
Filed: 1965-03-26
Abstract: 1,139,065. Unpackaging coiled strip. UNITED ENG. & FOUNDRY CO. 24 March, 1966 [26 March, 1965], No. 13055/65. Heading B8C. [Also in Division B3] An apparatus for removing a retaining band B from a coil of material C comprises a pair of motor-driven support rollers 10, 11 which can be raised by a fluid cylinder 11c. Above the coil is a hold-down roller 12 which is belt-driven by a motor 16. The motor 16 is mounted on a sub-frame 17 which is supported by parallel links 18, 21 which are pivotally attached to a frame 19 which is slidable in a direction parallel to the axis of the coil C. The sub-frame 17 is raised and lowered by a fluid cylinder 32. The band B is severed by a cutter 25 mounted in a holder 24 which is reciprocable in a guide 23. The holder 24 is moved to bring the cutter close to the band B by a fluid cylinder 27 which is mounted on the sub-frame 17. The cutter 25 is actuated to sever the band B by the impact of a hammerhead 28 carried by the piston-rod of a fluid cylinder 29. The cut band B passes into a shoot 34 and is fed by a pair of rubbercovered pinch rolls 35, 36 to a scrap-cutting shear 42, the cut pieces of band falling into a container 43. The pinch rolls 35, 36 are driven by an air-motor which stalls if the speed of the rolls exceeds the speed at which the band is advanced by the hold-down roller 12. The shoot 34 is vertically adjustable by means of a fluid cylinder 41. Prior to cutting the band B the coil of strip is positioned so that the leading end of the strip is between the roller 12 and a guide 44 along which the strip passes to a processing machine 45.
Patent GB-804991-A (GB)
Title: Improvements in or relating to method and apparatus for preparing solid silicon monoxide
IPC: C01B33/113
Filed: 1955-05-05
Abstract: Solid silicon monoxide, having the general formula [(Si)x.(SiO2)y], where x and y are whole numbers, and containing a substantial amount of fibres, is prepared by contacting silicon monoxide gas with an inert gas free from available oxygen under substantially non-turbulent conditions and condensing the silicon monoxide to a particulate solid in the inert gas.  The fibres have an average particle length of 50 to 600 mm , a surface area of 60 to 200 sq. m/grm. and a ratio of width to length from 1 : 10 to 1 : 50. <PICT:0804991/III/1> The silicon monoxide gas is prepared by reducing silica, sand, quartz or mineral silicate with carbon, e.g. anthracite, carbon black, coal, or petroleum coke free of volatiles, or silicon, or silicon carbide.  A charge of premixed aggregates of equal mols. silica and carbon is fed by screw or other conveyers 21 to furnace 5 and subjected to are 2 between electrodes 3, which may be cooled and fed into the furnace as they are consumed.  The mixture of silicon and carbon monoxides produced passes through port 7 into condensing tube 8, where it is mixed with inert gas, flowing through registering ports 11, 12 from chamber 9, with a minimum of turbulence.  The inert gas, entering chamber 9 through inlets 10, may be carbon monoxide, nitrogen, argon, helium or neon or mixtures thereof, and is mixed with the gas mixture from the furnace in the ratio 3 : 1 to 15 : 1 ft.3/min., preferably 8 : 1 ft.3/min.  Carbon dioxide and steam are stated to be unsuitable as inert gases.  The inert gas may alternatively be introduced into the gas mixture from the furnace by an open ring or pipes directly about port 7 to provide a column of gas and lamellar flow.  The mixture of gases passes from tube 8 into collecting chamber 15, where the fibrous silicon monoxide is deposited on V-shaped screen 17 and is transferred by conveyer 24 in hopper 25, having sealing slide 26.  Residual gases are withdrawn at 18, and may be recycled to chamber 9, through pipes 27, 28 equipped with flow-controlling devices, rendering continual supply of fresh inert gas unnecessary.  The collector may alternatively be a gas-pervious bag or a cyclone, and other high-temperature furnaces, e.g. a resistance furnace, may be used. The fibrous silicon monoxide may be used as a reinforcing filler for rubbery material, and in sound and insulating compositions. Specification 804,993, [Group IV (a)], is referred to.
Patent GB-913798-A (GB)
Title: Magnetic data processing
IPC: G06K7/08
Filed: 1961-04-12
Abstract: 913,798. Magnetic recording-heads. ITEK CORPORATION. April 12, 1961 [April 12, 1960], No. 13128/61. Class 40 (2). [Also in Group XIX] Film or other records 20, Fig. 1, which are to be held in a stack, as shown in Fig. 2, are identified by data magnetically recorded on a marginal strip 21 in such a way that a field is produced external to the edge of the record for detection by a sensing-head 25 moved across the edges of the records. The recording may be made as shown in Fig. 4, by a head 32 having a conductive insert 38 in the gap. The winding 39 is connected to a condenser 43 first charged by a battery 45 and then discharged through the winding. According to the polarity of the current flow the recording on the strip 21 may have a north or a south pole on the outer edge. Eddy currents induced in the insert 38 serve to oppose the build-up of magnetic flux across the gap of the recording head so that it takes the path of smaller resistance through the magnetic material of the strip 21. Other ways of achieving this, are described (Figs. 6, 7, not shown), using saturation of a part of the magnetic core of the head. The sensing head is of conventional construction, there being a separate core 25A, Fig. 3, for each bit position.
Patent GB-131305-A (GB)
IPC: H02K21/18
Abstract: 131,305. Bernard, J. June 7, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Couplings. - The connexion between the stationary high-tension conductor 22 of a magneto and an outer cable is made as follows :-A part 21, Fig. 6, of insulating material, provided with two grooves enabling it to be placed in a support 19, 20 of the magneto so as to slide downwards into position, has an aperture receiving the conductor 22. The wires of the cable are bared for a certain length and a screwed ring 24 of insulating material and a metal washer 25 applied, as shown in Fig. 8; the bared wires are bent over and the cable inserted in the part 21, as shown in Fig 7, the bared portion of the wires being pressed against the conductor 22 by means of an annular nut 23. A washer 27 of plastic material is arranged between the plate 12 and part 21.