baber/WOPTO huggingface dataset:
Patent GB-263842-A (GB)
Title: Improvements in electric lamp sockets
IPC: H01R33/46
Filed: 1926-12-29
Abstract: 263,842. Fignac, J. B. Dec. 31, 1925, [Convention date]. Holders.-In holders of the kind wherein an axially movable terminal block 8 is provided with rigid contacts 11, 12 and is pressed upon the bulb cap 20 by springs 7, the block is also provided with wire conduits 32, 33 in line with the contacts and with guides 39 that separate the wires and about which they are looped to grip the block in a plane at right-angles to the axis of the holder. These guides may be formed by a cylindrical boss across which a recess 36 is formed, the wires extending from the contacts partly around the boss 39, and then into the recess 36, from the middle of which they pass out of the holder through an insulating ring 4. The sheath 5 that contains the base 8 is screwed into a cap 1, and the base is retained by an internal flange 16 on a ring 15 screwed into the sheath. The springs 7 that press the base downwards are stamped from an internal flange at the top of the sheath. The flange 16 has gaps to admit the pins 19 of the bulb cap, and is inclined up to notches 18 wherein the pins lie when arrested by shoulders 38 formed on the base 8. The base is located by notches registering with projections 31 on the flange 16.
Patent GB-1510246-A (GB)
Title: Benzimidazole-2-carbamates
IPC: A61K31/44
Filed: 1976-08-06
Abstract: 1510246 Benzimidazole-carbamates F HOFFMANN-LA ROCHE & CO AG 6 Aug 1976 [7 Aug 1975] 32852/76 Heading C2C Novel compounds I [in which A is CO, CHOH, CH 2 , or (CH 2 ) 2 ; R<SP>1</SP> is pyridyl or 2-thiazolyl and R<SP>2</SP> is C 1-7  alkyl] and the acid addition salts of those compounds where R<SP>1</SP> is pyridyl are prepared by reacting a compound II with an isothiourea R<SP>3</SP>S-C(NH 2 )=N-COOR<SP>2</SP> where R<SP>3</SP> is C 1-7  alkyl and, if desired, converting a compound I (R<SP>1</SP>=pyridyl) into a salt. Compounds I (A=CHOH) are also prepared by reduction of a corresponding compound I (A=CO). Compounds II (A=CH 2  or (CH 2 ) 2 ) are prepared from compounds IV where A<SP>1</SP> is CH 2  or (CH 2 ) 2  by nitration to give a 3-nitro derivative, anunation to a 4-amino compound and subsequent reduction. Compounds II (A = CO) are prepared by oxidizing. Compound IV (A<SP>1</SP> = CH 2 ) to the corresponding carbonyl compound followed by the reaction sequence outlined above. P-chlorobenzoyl-pyridines are also prepared by Friedal-Crafts reaction of a pyridene-carboxylic acid chloride with chlorobenzene. Compounds IX are also prepared by (1) reacting a compound R<SP>1</SP>-Br with n-Butic and p-chlorobenzaldehyde and oxidizing the α-(R 1 )-p-chlorobenzene-niethanol obtained followed by nitration or (2) reacting R<SP>1</SP>-Br and n-Butic with 3-nitro-4- chloro-benzaldehyde followed by oxidizing the methanol XII obtained. Compounds II (A= CHOH) are prepared by reduction of compounds II (A=CO) or by amidation and reduction of methanol XII. Compounds I are anthelmintics and form with a carrier a pharmaceutical composition which may be administered orally or parenterally ; the compounds may also be added to feedstuff or drinking water.
Patent GB-724258-A (GB)
Title: Improvements in or relating to radiators of fluid-flow type
IPC: F28D1/047
Filed: 1952-12-29
Abstract: 724,258. Radiators for cooling fluids and for heating buildings. WINN, S. Dec. 29, 1953 [Dec. 29, 1952], 'No. 32864/52. Classes 64 (2) and 64 (3). In a radiator comprising flow tubes 3 interconnecting upper and lower headers 1, 2, the respective tube-carrying walls of the headers face in the same or in opposite directions and are provided with resilient members having holes therein for receiving and frictionally gripping the tube ends which are laterally directed with respect to the remainder of the tube and are parallel to each other. Individual tubes are thereby readily replaceable. In the form shown the headers 1, 2 comprise boxes each having an open side which is closed by a compound tube plate e.g. of the kind described in Specification 716,623 and comprising a resilient member 6 provided with holes to receive the tube ends, and bonded to a rigid member 5. Shoulders 7 are provided adjacent the ends of the tubes to limit the extent to which the tubes may be inserted in the headers. The provisional specification describes alternative means for securing together the resilient and rigid members of the compound tube plate. The invention is said to be applicable to radiators for cooling a fluid as in an internalcombustion engine cooling system or to radiators for heating the surrounding atmosphere.
Patent GB-1465467-A (GB)
Title: Holding means for holding brake bars in an upper platen of a  strip guide assembly for a strip rolling mill
IPC: B21B39/08
Filed: 1975-08-06
Abstract: 1465467 Rolling mill guides VEREINIGTE OSTERREICHISCHE EISEN-UND STAHL WERKE ALPINE MONTAN AG 6 Aug 1975 [11 Oct 1974] 32882/75 Heading B3M A guide for tensioning strip 2 entering a roll stand includes wooden brake bars 8 mounted in a fixed lower platen 4 and a movable upper platen 5, the bars for the upper platen being held in place by spring-loaded clamps 11. The clamps are connected by arms 15 to an actuating shaft 16 which can be rotated to withdraw the clamps from the bars to allow them to be adjusted laterally or replaced. To enable the clamps to be operated individually, in groups, or in unison, each arm 15 is clutchable to the shaft 16 by a slidable dog clutch member 18 (Fig. 2). The outer two bars of the lower platen are laterally adjustable by an oppositely threaded rod 28, and the adjacent bars of the lower platen can be simultaneously moved by co-operating edge guides 27 and 29.
Patent GB-537658-A (GB)
Title: Improvements in thermionic device
IPC: H01J19/30
Filed: 1939-12-28
Abstract: 537,658. Alloys. KEMET LABORATORIES CO., Inc. Dec. 28, 1939, No. 32927. Convention date, Feb. 17. Drawings to Specification. [Class 82 (i)] One or more elements of a thermionic tube are made of an alloy consisting of nickel with 15-40 per cent. of molybdenum and less than 10 per cent. of iron. The nickel may be wholly or partly replaced by cobalt or by cobalt and iron, or partly by iron, but if iron is present its amount is less than 10 per cent. and preferably not more than 5 per cent. The molybdenum may be partly replaced by tungsten. Small amounts of vanadium, carbon, manganese, silicon, zirconium, and magnesium may be present. Specification 410,268 is referred to.
Patent GB-652785-A (GB)
Title: Improvements in or relating to sawing machines
IPC: B23D49/02
Filed: 1948-12-21
Abstract: 652,785. Reciprocating saws. TYLEY, C. E. Dec. 21, 1948, No. 32931. [Class 145(ii)] A reciprocating saw comprises a blade holder 54 slidably mounted on a reciprocating carriage 43 by means of rods 46a 47a. The carriage is reciprocated by crank 40 and connecting riod 41 driven by reduction pulleys from a pulley 31, mounted on an electric motor and arranged alongside the carriage. The length of the saw is thus kept at a minimum. The cutting teeth are relieved by the blade 53 being given a slight slope and the saw is gravity fed by weight 61. In the smaller saws the saw tension adjuster 59 regulates the frictional opposition to the gravity feed. In bigger saws a dashpot may be fitted as well.
Patent GB-393293-A (GB)
Title: Improvements in ovens for drying materials or for other heat treatment
IPC: F27B7/04
Filed: 1931-11-27
Abstract: 393,293. Rotary furnaces. BOURDET, A. P. E., 57, Grande Rue, Triel-sur- Seine, Seine-et-Oise, France. Nov. 27, 1931, No. 32971. Convention date, Nov. 28, 1930. Addition to 359,900. [Classes 51 (ii) and 55 (i).] The furnace described in the parent Specification is modified by mounting the two heating- tubes one within the other, or by making one or both of the tubes in this form. The material may be fed first into the inner or the outer tube, and in the latter case, at the delivery end of the outer tube, the material is raised to feed it into the inner one by an external elevator or, as shown in Fig. 3, by vanes t<2>, which discharge the material on to a guide cone t<3>. The heating arrangements are such that the gases and the material flow in parallel through the tube into which the material is first delivered, and in counter current through the outer tube. In the furnace of the Figure, which is more particularly adapted for the partial distillation of wood, gases are withdrawn from the stack by a fan and returned through a pipe w to the final heating-tube. Sand, powdered gypsum, or other inert material may be mixed with the charge to prevent active combustion and this added material is screened off through openings x at the discharge end of the inner tube and returned to the feed end of the outer one. In the form of the invention in which each of the heating tubes consists of two concentric tubes, the materials and heating gases flow in parallel through both parts of the first double tube, and in counter-current through both parts of the second. Specification 380,830 is referred to.
Patent GB-665859-A (GB)
Title: Improvements in or relating to a railway draft rigging and cushioning mechanism
IPC: B61G9/06
Filed: 1948-12-22
Abstract: 665,859. Combined buffing and drawgear for railway vehicles. STEVENS, A. H., (National Malleable & Steel Castings Co.). Dec. 22, 1948, No. 33041/48. Class 103(v) A cushioning mechanism for assembly with a draught gear yoke between the front and rear stop lugs of a draught gear pocket of a railway vehicle comprises a main cushioning unit engaging the stop lugs and a yoke engaging auxiliary cushioning unit also engaging the main cushioning unit and operating in series therewith, one of said cushioning units being assembled under greater initial compression than the other, the resistance to further compression of said cushioning unit which is under lesser initial compression being such that during further compression it exceeds the initial compression of the other cushioning unit. In the embodiment shown a coupler shank 18 is universally connected to a yoke 13 supported, between sills 10, on surfaces 24, 25 for sliding movement. The main cushioning units 32 of rubber are sandwiched between plates 33, 34 which engage V- shaped pockets 31 in a member 30, and wedges 40 respectively. Abutments 43 on wedges 40 engage front and rear stops 11. Auxiliary rubber cushions 45 are disposed between the wedges 40 and followers 56 in contact with abutments 16, 17 on the yoke 13. The followers 56 are tied to wedges 40 by bolts 52 and nuts 54 adjusted to allow expansion of the cushions 45. The resilient elements are precompressed on assembly and are thus held tightly in position. Light shocks are taken bv the elements 45, one compressing and the other expanding; heavier shocks overcome the initial compression on elements 32 which then work in series with the respective element 45; and the heaviest shocks cause the follower 56 to contact abutments 58 on the wedges 40 and are taken by the elements 32 directly. Abutments 63, 64 on wedges 40 and member 30 contact on excessive compression of the elements 32 to prevent damage thereto. Means are described for retaining the resilient elements compressed during assembly in the draught pocket.
Patent GB-1490294-A (GB)
Title: Adaptive braking system of a vehicle
IPC: B60T8/1763
Filed: 1975-08-07
Abstract: 1490294 Antiskid braking systems BENDIX CORP 7 Aug 1975 [11 Sept 1974] 33041/75 Heading F2F An antiskid braking system comprises a control means responsive to comparison of a first signal correlated to wheel speed with a second signal having a known law of variation for initiating a control signal to cause release of braking pressure when the first and second signals bear a predetermined relationship, the system also including means responsive to termination of the control signal for changing the value of the second signal the said value being subsequently and progressively returned to a value at which it resumes the said law of variation. The second signal is provided by a memory element in the form of a capacitor 62 and the value is changed by momentarily discharging the capacitor by means of a shunt 76, the capacitor being then progressively recharged through a resistor until the second signal reaches the value at which it resumes the known law of variation. As shown a sensor 20 supplies a continuous voltage, representative of wheel speed, to a voltage divider comprised of resistors 40, 42, 44 and thence to an operational amplifier 50 provided with a feedback resistor 61, the amplifier and resistor providing an acceleration memory update for capacitor 62 and shunt 76 provides a decay rate control circuit. During braking, as the speed signal decreases, the voltage across capacitor 62 follows but if the speed signal decreases too rapidly the voltage across capacitor 62, that is the reference signal approaches the speed signal and when they become equal a comparator 74 produces an output signal which is applied to braking force attenuator 75, the signal from comparator 74 also being applied to the base of an NPN transistor 90 associated with an NPN transistor 82 and forming a switching arrangement. In a modification a wheel acceleration signal is compared with an acceleration reference signal.
Patent GB-300507-A (GB)
Title: Safety devices for burners
IPC: F23Q9/12
Filed: 1928-11-12
Abstract: 300,507. Spencer Thermostat Co., (Assignees of Sellman, N. T.). Nov. 12, 1927, [Convention date]. Thermally - actuated valves. - A thermally actuated safety-cut off device for gas burners adapted to operate in the event of the flame being extinguished comprises a valve 15 actuated by a dished bimetallic diaphragm 20. The diaphragm is housed in a casing formed of two parts crimped together, one part 16 being secured to the inlet pipe 4, while the other 17 is cut to embrace the burner tube 10, a securing clip 19 being fitted if desired. The part 17 may be closed and a member of high heat conductivity secured to the casing so that a tongue on the member projects into the flame.
Patent GB-1511976-A (GB)
Title: Separation of low-boiling gas mixtures
IPC: F25J3/04
Filed: 1976-08-09
Abstract: 1511976 Separation of gases LINDE AG 9 Aug 1976 [8 Aug 1975] 33165/76 Heading F4P In a two-stage rectification process, the lowpressure rectification column 2 is divided into upper and lower portions by a partition 13, and gas is withdrawn from the lower portion and blown into the upper portion. In an air separation process as shown, cooled compressed air is fed to high pressure column 1 via line 4, and crude oxygen and nitrogen are expanded into the low pressure column 2 via lines 5, 6, respectively. Product oxygen and nitrogen are withdrawn from column 2 via lines 7, 8. Oxygen rich air from column 1 is fed to a reflux condenser 10 and separated into liquid and gas fractions the liquid fraction being expanded at 12 to cool the condenser before being fed to an ejector 3 which effects the transfer of gas from the lower to the upper portion of column 2. In a modification, Fig. 2 (not shown), the O 2 -rich fraction from column 1 is expanded and fed to a heat-exchanger (17) at the head of column 1 before being fed to the ejector 3.
Patent GB-332352-A (GB)
Abstract: 332,352. Barwinkel, M. June 7, 1929. Spring surfaces.-Bent wire springs c of serpentine formation are secured across a seat or like frame by clips d, e one of which is slotted to permit of endwise movement of the spring under load. The springs may be formed in integral pairs secured by common clips as shown.
Patent GB-901506-A (GB)
Title: Improvements in and relating to electric power supply systems using transistors
IPC: H02M3/338
Filed: 1960-09-28
Abstract: 901,506. Converting. GENERAL MOTORS CORPORATION. Sept. 28, 1960 [Oct. 5, 1959], No. 33284/60. Class 38 (2). [Also in Group XL (c)] A transistor inverter including an output transformer having a feedback winding to maintain the circuit in oscillation is characterized in that a first switch is connected in the output circuit to selectively connect the inverter to different loads, and a second switch is connected in the feedback circuit to change the feedback current; both switches being actuated by a relay. In a push-pull transistor inverter circuit, Fig. 1, of the type having a saturable output transformer 14, the connection between the centretapped feedback winding 18 and the base and emitter electrodes of transistor 30, 32 includes a current limiting resistor 38 and a starting resistor 40, the latter being connected across the supply 12 in series with a resistor 44. The output circuit of the inverter consists of secondary windings 22, 26 connected to bridge rectifier circuits 20, 24 to provide the D.C. supply for a transmitter and a receiver. In the de-energized condition of the relay 28, the output from a tapping on winding 26 is connected in series with the supply 12 to the receiver via switches 50, 56 and the resistor 38 is in circuit to limit the drive of the oscillator. When the " press to speak " switch 27 is operated energizing the relay 28, switch 50 changes over to provide a full output from winding 26, switch 60 closes to connect the D.C. output from winding 22 in series with the D.C. output of winding 26, switch 58 changes over to connect this combined supply to the transmitter, and switch 42 closes shorting out resistor 38 to increase the drive, and at the same time to increase the starting voltage by shunting resistor 46 across resistor 44. In a modification, Fig. 2, resistor 38 is omitted and the feedback winding 64 is tapped, the increase in drive being achieved by changing the taps with switches 66, 68, a further switch 42<SP>1</SP> being provided to increase the starting voltage.
Patent GB-1532120-A (GB)
Title: Thermally compensated variable turbine or compressor nozzle position indicator
IPC: F01D17/02
Filed: 1977-08-09
Abstract: 1532120 Adjustable turbine or compressor stator vanes CATERPILLAR TRACTOR CO 9 Aug 1977 [1 Oct 19761 33300/77 Addition to 1497974 Headings F1C and F1T The adjustable stator vane assembly described in the parent Specification is additionally provided with a potentiometer 58 having a body 60 and stem 62 which rotate in opposite directions in response to operation of the vane actuating jack 32 so as to indicate vane position on resistance meter 80. The assembly is arranged such that potentiometer 80 is unaffected by thermal expansion of the vane operating links (48, 50) Fig. 2 (not shown).
Patent GB-485995-A (GB)
Title: Improvements in electron valve amplifiers
IPC: H03F1/36
Filed: 1937-12-02
Abstract: 485,995. Valve amplifying circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. Dec. 2, 1937, No. 33339. Convention date, Dec. 3, 1936. [Class 40 (v)] In an amplifier using negative reaction designed for constant amplification over a wide frequency range, the output transformer is shunted by a resistance and capacity in series to prevent self-oscillation. The circuit shows a three valve amplifier in which to avoid undesired phase displacement the anode and grid impedances between the valves are divided into two parts A1, A2 and G1, G2 respectively, the mutually corresponding points being connected by coupling capacities K1, K2 of which K1 is smaller than K2. G1 is shunted by capacity C. The negative reaction coupling is taken out from a point between two resistances Ra shunted across the primary of output transformer Tu to form a voltage divider, the tapping being arranged so that ¢R/alpha=the internal resistance of valve E3 where R is the value of a resistance in the anode load and alpha is the fraction of the anode load tapped off by the reaction coupling. To avoid self-oscillation and phase displacement the primary of Tu is also shunted by resistance RK and capacity CK of such values that RK = #2LI/CK = n<2>Z where 2LI is the leakage inductivity measured from the primary side, n the transformation ratio of the transformer and Z the load impedance at the output side. Specification 482,328 is referred to.
Patent GB-1512102-A (GB)
Title: Thermoplastic polyoxymethylene moulding resins
IPC: C08L71/08
Filed: 1975-08-11
Abstract: 1512102 Polyoxymethylene/phenoxy resin moulding compositions CELANESE CORP 11 Aug 1975 [12 Aug 1974] 33370/75 Headings C3M and C3B Thermoplastic polyoxymethylene moulding compositions comprise a solid oxymethylene polymer optionally also containing other units, e.g. oxyalkylene or oxyhaloalkylene units; a reinforcing agent; and a phenoxy resin having the repeating structure Suitable reinforcing agents include fibres of glass, asbestos, cellulose, synthetic materials, graphite and acicular calcium metasilicate. The inclusion of the phenoxy resin provides improved physical properties and improved surface effects of moulded articles.
Patent GB-661042-A (GB)
Title: Improvements in or relating to the exhausting of the cylinders of two-stroke internal combustion engines
IPC: F02B25/02
Filed: 1948-12-29
Abstract: 661,042. Two-stroke engines. PETERSEN, .0., and MEINERTZ, M. F. Dec. 29, 1948 [Dec 30, 1947], No. 33415/48. Drawings to Specification. Class 7(ii) In a two-stroke internal-combustion engine in which the exhaust is divided into two successive fractions, the first being undiluted and operating a turbine or other back-pressure-producing apparatus and the second being mixed with scavenging air and being discharged to the atmosphere at substantially atmospheric pressure, an independent valve is provided for each exhaust fraction, both valves being mounted in the cylinder end remote from pistoncontrolled, scavenging-air ports, and the valve corresponding to the first fraction having a smaller gas flow than necessary for scavenging, being operated more quickly than a normal single exhaust valve, commencing to open between 40 degrees and 70 degrees before bottom dead centre, and being closed before the pressure wave reflected from the turbine has reached the cylinder at normal engine speed, whereas the second valve, which is connected to a separate exhaust pipe leading to the atmosphere, opens before the first valve closes, such that the total exhaust area is substantially constant during the transition from the first valve to the second.
Patent GB-303107-A (GB)
IPC: C10B5/02
Filed: 1928-11-15
Abstract: 303,107. Totzek, F., (Assignee of Koppers Akt.-Ges., H.). Dec. 28, 1927, [Convention date]. Addition to 302,225. Coke-ovens. - In a coke - oven battery having longitudinal regenerators 18 and heating-walls 11, 12 connected in pairs by cross-over flues 24, a pair of sole flues 13, 15, connected each to one of the two adjacent heating-walls, is provided under alternate ovens, while the single sole flues 14, 22 beneath the remaining ovens are connected to both adjacent heating-walls. By this arrangement the pairs of heating-walls 11 and 12 operate concurrently for upflow or downflow. The flues 13, 15 cross one another at the middle of the length of the oven as described in the parent specification.