baber/WOPTO huggingface dataset:
Patent GB-489255-A (GB)
Title: Improvements in or relating to electric lamps
IPC: H01K1/46
Filed: 1937-10-21
Abstract: 489,255. Two -part couplings ; electric incandescent lamps. BIRDSEYE ELECTRIC CORPORATION. Oct. 21, 1937, No. 28734. Convention date, Nov. 2, 1936. [Class 38 (i)] [Also in Group XI] In order to enable an electric lamp to be given any desired angular adjustment with respect to the socket in which it is mounted, its metal cap or base is provided with a flexible corrugated intermediate portion 21 between the usual screw-threaded socket-engaging portion 20 and the sleeve portion 22 which is cemented to the glass neck of the bulb. A portion of the leading-in wire 14 between the pinch 12 and centre contact 25 of the cap is wound into the form of a loose helix or, spring to allow for extension when the base is flexed and, to prevent contact between the leading- in wire and the inner wall of the cap, the wire is insulated by beads or by a sleeve 24 of ceramic material, asbestos, glass, or the like. Contact may be further prevented by passing the insulated lead through an aperture in a fibre washer which is threaded upon the exhausting-tube 17 and acts as a spacer. The flexible bellows portion 21 may be formed of copper, and may be coated with insulating varnish; alternatively the flexible portion may comprise a helix of flexible non-resilient wire. In a further modification the flexible portion of the'cap is'insulated from the screwthreaded portion by a ring of fibre or the like to which they are both riveted independently.
Patent GB-464682-A (GB)
Title: Improvements in recording apparatus
IPC: G07C5/12
Filed: 1935-10-18
Abstract: 464,682. Electric signalling systems. GFELLER AKT.-GES., C. Oct. 18, 1935, No. 28804. Convention date, Oct. 18, 1934. [Class 40 (i)] [Also in Group XIX] Apparatus for recording data relating to a motor vehicle comprises means actuated by the operation of devices associated with the movement and control of the vehicle for temporarily magnetising bodies which later can actuate permanent recording mechanism. The depression of the foot-brake pedal B causes the enregization of an electromagnet E1 which temporarily magnetizes a steel tape S1 driven at constant speed. The operation of the horn button Bl similarly causes the magnetizing of a band S2, while contacts A3, closed at each revolution of the road wheel B4, cause the magnetizing of a band S3. The bands are endless and the magnetization is normally cancelled by magnets L1. When a permanent record is to be made, a switch T is operated to connect the electromagnets E1, E2, E3 through an amplifier J to a permanent recorder which is thus controlled by the inductive action of the magnetized parts of the bands. In a modification, Fig. 2, the temporarily magnetized bodies L6 are carried on a rotating drum and, when a permanent record is to be made, the bodies L6 attract permanent magnets M which swing about axes N to close contacts O1, 02 in the circuits of recording means P1, P2.
Patent GB-187461-A (GB)
Title: Improved draught and weather excluder for doors and windows
IPC: E06B7/20
Filed: 1921-10-29
Abstract: 187,461. Aves, H. Oct. 29, 1921. Addition to 155,422. Draught excluders.-A draught excluder of the kind described in the parent Specification has one or more of the pivoted levers d towards the centre of the excluder strip C made adjustable in length by providing a number of pivot holes f, the strip being thereby bent to fit worn sills &c. A metal block may be interposed between the lever d and the door. The push-rod b may be operated from either side of the door, as in the parent Specification.
Patent GB-1035675-A (GB)
Title: Hydraulic press
Inventor: SHERRIFF ARTHUR IRVING
IPC: B30B15/18
Filed: 1963-07-20
Abstract: 1,035,675. Assembling force fits. BRIGGS & SHERRIFF Ltd. Oct. 20, 1964 [July 20, 1963], No. 28817/63. Heading B3U. [Also in Division B5] The platen 9 (Fig. 1, not shown), of an hydraulic press, e.g. for assembling force fits, can be brought to rest in any desired position by means of a setting member 46 (Fig. 2, not shown) connected by a link 49 to the movable shuttle 36 of a valve 13 in the supply line leading to the operating cylinder 7 of the press. As shown, the cylinder 7 is connected to the platen 9 and contains a stationary piston 10. The setting member 46 is adjustable by means of a capstan 51 through a pinion 53 meshing with a rack 52 formed on the member 46. When the setting member 46 and shuttle 36 are moved, hydraulic fluid acts on the piston 10 and cylinder 7 to restore the outer part of the valve 13 to its original position relative to the shuttle 36. The platen 9 can thus be inched forward to a desired position by inching forward the setting member 46.
Patent GB-655519-A (GB)
Title: Improvements in or relating to penicillin compositions
IPC: A61K9/00
Filed: 1948-11-06
Abstract: Solid readily dispersable preparations containing procaine penicillin are manufactured by intimately mixing (e.g. by trituration) procaine penicillin with a small amount (e.g. 0.1-1.0 per cent), of a water-soluble non-ionic surface-active agent in the presence of an organic solvent selected from lower aliphatic alcohols, ketones and chlorinated hydrocarbons, aliphatic carboxylic acid esters and aromatic hydrocarbons, and having a boiling point not substantially above 130 DEG  C., at normal pressure, the organic solvent being thereafter removed, e.g. by the action of heat.  Suitable solvents include methyl and n-butyl alcohol, ethyl, n- and isopropyl and n-butyl acetate, chloroform, carbon tetrachloride, dichlorethylene and especially acetone, whilst preferred surface-active agents are the polyoxyalkylene derivatives of partial esters of polyhydric alcohols having at most 10 hydroxy groups with fatty acids having at least 4 carbon atoms in the molecule, especially a polyoxyalkylene derivative of a hexitol inner anhydride partial long-chain fatty acid ester.  In examples, the surface-active agent is polyoxyethylene sorbitan mono-oleate, alternatives to which are listed. Specifications 661,272 and 3806/46 (as open to inspection under Sect. 91) are referred to.ALSO:Solid readily dispersable preparations containing procaine penicillin are manufactured by intimately mixing (e.g. by trituration), procaine penicillin with a small amount (e.g. 0.1-1.0 per cent), of a water-soluble non-ionic surface active agent in the presence of an organic solvent selected from lower aliphatic alcohols, ketones and chlorinated hydrocarbons, aliphatic carboxylic acid esters and aromatic hydrocarbons, and having a boiling point not substantially above 130 DEG C at normal pressure, the organic solvent being thereafter removed, e.g. by the action of heat.  The products, which may be distributed in vials, yield injectible suspensions by dispersing them in an injectible menstruum, especially water. Suitable organic solvents include methyl and n-butyl alcohol, ethyl, n-and iso-propyl and n-butyl acetate, chloroform, carbon tetrachloride, dichlorethylene and especially acetone, whilst preferred surface active agents are the polyoxyalkylene derivatives of partial esters of polyhydric alcohols having at most 10 hydroxy groups with fatty acids having at least 4 carbon atoms in the molecule, especially a polyoxyalkylene derivative of a hexitol inner anhydride partial long chain fatty acid ester.  In examples, the surface active agent is polyoxyethylene sorbitan monooleate, alternatives to which are listed.  Specifications 661,272 and 3806/46 (as open to inspection under Sect. 91), are referred to.
Patent GB-1514467-A (GB)
Title: Controlled atmosphere and vacuum processes
IPC: B23K35/38
Filed: 1975-05-23
Abstract: 1514467 Gettering WALL COLMONOY LTD 23 May 1975 [28 June 1974] 28898/74 Heading H1D A getter unit for a vacuum or controlled atmosphere furnace comprises a temperature resistant support carrying a layer of material forming a liquid or semi-liquid getter at operating temperature. For oxygen gettering at preferably 1000-1200‹ C. but possibly up to 2000‹ C. Ti or Zn with Fe, Ni or Cr forms a eutectic alloy melting out from powder as operating temperature is approached. Preferably the support comprises an expendable stainless steel plate with which Ti or Zr powder reacts, uncoated and possibly with turned-up margins allowing horizontal placement or if vertical relying on oxide formation to increase the viscosity of the eutectic. Fugitive cement, promoter and flux may be added. Alternatively mixed or alloy powders of Ti or Zr with Ni, Fe or Cr, preferably with cement and promoter may be placed in a depression in an inert tile of, e.g. alumina, titania or zirconia. The getter assembly should preferably form part of an enclosure round the workpiece.
Patent GB-1061183-A (GB)
Title: Photoconductive element for electrophotography
IPC: G03G5/07
Filed: 1963-07-23
Abstract: In Example 6(a) dimethyl fulvene is prepared by adding a solution of cyclopentadiene in acetone to a lightly heated solution of sodium in absolute ethanol, sufficient cooling being applied to prevent too great an increase in temperature.  After 1/2 hour water is added and the mixture steam distilled. The reaction mass is then extracted with ether, the extracts dried, the solvent removed, and the residue vacuum distilled to obtain the product (as a yellow oil) in 75% yield.ALSO:A long chain substituted polyphenyl is prepared by refluxing a dioxane solution of 2: 5-dichloro-m-xylene over metallic sodium. A polymer containing diphenyl units, some of which are directly linked end-to-end while others are linked end-to-end by azo groups is obtained by diazotizing benzidine and reacting the diazonium salt solution with a solution of cuprous salts prepared by mixing an ammoniacal copper sulphate solution with an aqueous solution of sodium hydroxide and hydroxylamine. A polymeric azine may be prepared by adding hydrazine sulphate to a water/alcohol mixture containing sodium carbonate and tere phthalaldehyde.  Other polymeric products are parpared from terephthalaldehyde and p-phenylene diamine and from terephthaldehyde and benzidene.  Poly - 2: 21 - (m - phenylene)-5,51 (or 6: 61) - dibenzoimidazole is made by heating together in a nitrogen atmosphere diamino benzidine and diphenyl isophthalate; water and phenol are eliminated Two polymers each containing a long chain of condensed rings are obtained from methyl vinyl ketone and methyl iso-propyenyl ketone respectively.  With methyl vinyl ketone, the ketone is first heated with 0.5% of benzoyl peroxide, the mixture cooled in ice, and the resulting mass dissolved in acetone and poured into ether to precipitate the polyvinyl compound which is filtered off, ether washed, and vacuum dried.  This product is then pyrolized in a nitrogen atmosphere to effect ring closure all along the chain, water being eliminated.  The addition polymer of methyl isopropenyl ketone is obtained by refluxing an acetone solution of the ketone in the presence of azo-bis-butyronitrile. The cooled solution is poured into ether to precipitate the polymer.  The vacuum dried polymer is then pyrolized to effect ring closure.  Polycyclopentadiene is prepared by dissolving cyclopentadiene in anhydrous benzene and adding trichloracetic acid to the cooled mixture.  After standing at room temperature the mixture is poured into ethanol to precipitate the polymer which is filtered off ethanol washed, and vacuum dried.  In making polydimethylfulvene trichloracetic acid is added to a solution of dimethylfulvene in anhydrous benzene, the mixture being kept at room temperature.  The mixture is allowed to stand and is then poured into methanol to obtain the polymer.
Patent GB-684285-A (GB)
Title: Improvements in or relating to semi-conductor amplifiers
IPC: H01L21/48
Filed: 1950-11-28
Abstract: 684,285. Semi-conductor amplifiers. SIEMENS & HALSKE AKT.-GES. Nov. 28, 1950 [Nov. 28, 1949], No. 29126/50. Class 40 (iv). In a semi - conductor amplifier arrangement, the semi-conductor 1 is secured to a resilient member 2 so that it is urged against the points of electrodes 4 and 5 which are a predetermined distance apart and sufficiently rigid so that this distance is not varied under pressure. The electrodes 4, 5 are constructed of thin triangular-shaped pieces of metal such as molybdenum, tungsten, or phosphorbronze. The pressure between the semi-conductor 1 and the electrodes may be adjusted by means of screw 9.
Patent GB-668170-A (GB)
Title: Improvements in apparatus for maintaining the temperature of a heat insulated space within definite limits
IPC: E04H5/08
Filed: 1948-11-10
Abstract: 668,170. Automatic temperature control systems. WATSON, F. (Ander, S. E.). Nov. 10, 1948, No. 29187/48. Class 38 (iv). A space 10 is kept between predetermined temperature limits by two inside, and one outside, thermostats 40, 42 and 44, respectively, which control a fan motor 22, the fan drawing air into the space only when the outside temperature is at a value adapted for temperature control to the right direction. Inlet and outlet ducts 18, 24 are provided with dampers 30, 28 under the control of a reversible motor 32 and a fourth thermostat 38 for varying the proportion of incoming and recirculated air. The thermostats 43, 44 control differentially the movement of a contact 82 which moves to the left when the inside temperature is above the outside temperature, and to the right when the inside temperature is below the outside temperature. Thus, when there is sufficient difference between the inside and outside temperatures and the outside temperature is at a value for control in the right direction, a relay 98 is energized closing contact 110 to complete the fan motor 22 circuit. If, during cooling, an excessive cold wave occurs outside the thermostat 38 causes movable 122 to abut contact 130, thereby causing the motor 32 to rotate in a sense to close damper 30 and open damper 28 for recirculation of the air. If the temperature inside rises movable contact 122 will abut contact 128 to readjust the dampers. If, during heating, an excessive heat-wave occurs outside the dampers will again be positioned for recirculation since the connections to motor 32 are reversed by a relay 116 energized through contact 108 operated by relay 98. Periodic recirculation of the inside air is achieved by means of a counter 142 which periodically closes contacts 144, to energize the fan motor, and contacts 146, to energize a relay 150. Relay 150 closes contacts 152 energizing the motor 32 to position the dampers for recirculation of air. Should the ambient temperature not vary sufficiently to enable the control to be effected, a heating or cooling plant may be incorporated.
Patent GB-715304-A (GB)
Title: Improvements relating to apparatus for manufacturing ceramic circular flat ware
Inventor: JONES ARTHUR EDWIN
IPC: B28B1/02
Filed: 1952-11-20
Abstract: 715,304. Making pottery. STAFFORDSHIRE POTTERIES, Ltd. March 30, 1953 [Nov. 20, 1952], No. 29296/52. Class 87 (1) A profile tool a for shaping pottery is, in plan, in the form of a sector of a circle and has a lower surface which conforms to the surface of a sector of the finished ware. The following edge a<SP>1</SP> of the tool carries a carbide steel strip e which is slightly proud of the remainder of the lower surface. The usual slotted shank b extends upwards from the same edge.
Patent GB-386736-A (GB)
Title: Improvements relating to overload safety-devices for mechanisms driven by electric motors
IPC: H01H35/10
Filed: 1931-10-22
Abstract: 386,736. Actuating controllers. DORR CO., Inc., 247, Park Avenue, New York, U.S.A. Oct. 22, 1931, No. 29331. Convention date, Nov. 1, 1930. [Class 38 (iii).] A safety device for mechanism driven by an electric motor comprises a member which is displaced in proportion to the resistance encountered by the driven' mechanism and switching mechanism actuated by the displaced member in such a manner that when the resistance exceeds a predetermined limit a danger signal circuit is closed and when it exceeds a higher predetermined limit the motor circuit is opened. The arrangement is specially applicable in connection with the rotary rakes of sedimentation apparatus. The Figure shows a. worm 10 which drives a wheel on the shaft of a rotary rake. When the rake meets abnormal resistance the thrust causes the worm 10 to move longitudinally and communicate this motion to a member 16 engaged by a spring 20. A set screw 27 on the tail of a pivoted pointer 25, engaged by a spring 31, contacts with the member 16, so that the position of the pointer on its scale gives an indication of the resistance encountered by the rake. In the course of its movement the pointer engages stops 37, 38 on a sliding rod 36, carrying a cam piece 52, which engages with spring contact arms 41, 55. When the rake is operating normally the rod 36 is in such a position that the contact arm 41 closes a circuit through a lamp 48. On increased resistance the arm 41 is moved to break the circuit through the lamp and close a circuit through a bell 50, and when the resistance is further increased the contact arm 55 is moved to break contacts in the circuit 56 of the.motor driving the worm 10.
Patent GB-464795-A (GB)
Title: Improvements in or relating to supporting devices carried on motor bicycles and like vehicles
IPC: B62D61/02
Filed: 1935-10-25
Abstract: 464,795. Safety wheels for motorcycles &c. THEED, W. D. L. Oct. 25, 1935, No. 29474. [Class 136 (i)] In supports for motor-bicycles &c., of the type comprising one or more auxiliary wheels or rollers carried by the vehicle and adapted to be lowered into and raised out of contact with the ground, these movements are effected or controlled by suction derived from the induction of the engine ; preferably the actuating-mechanism is automatically controlled by a governor, according to the track speed of the vehicle. As shown, each auxiliary wheel B<4> is carried by a spindle H<2> secured to a piston H, which is depressed by a spring H<1> and is adapted to be raised by suction in a cylinder F, which communicates through pipes J, J with a valve chest K having an air inlet port K<1>, communicating with the atmosphere through a silencer K<2>, and an air outlet port K<3> communicating through a vacuum tank K<4> with the induction system of the engine. The ports K<1>, K<3> are controlled by a piston valve L connected to a governor L<1> driven from the gear-box L<2>, so that at a predetermined speed the valve L moves to the left and closes the inlet port K' and opens the outlet port K<3>, whereby the piston H and wheel B<4> are raised, against the action of the lowering- spring H<1>. The critical speed may be adjusted by varying the loading of the governor or the cross-sectional area of one of the air passages. The wheel B<4> may alternatively be lowered under hand-control by means of a three-way valve M, which is actuated by a lever M<1> and wire M<2> to connect the pipe J<1> to the atmosphere through an emergency port K<5>. To minimize shock when the wheel contacts with the ground, the cylinder F is pivoted at F<1> and acted upon by springs G.
Patent GB-472359-A (GB)
Title: Improvements in and relating to automobile door locks
IPC: E05B65/22
Filed: 1936-11-02
Abstract: 472,359. Door-latches. YALE & TOWNE MANUFACTURING CO. Nov. 2, 1936, No. 29735. Convention date, July 11. [Class 44] A flush handle for the outside of vehicle doors is moved into its recess when the latch is retracted either by the inside handle or by slamming the door. The handle 15, Fig. 2, is mounted on a plate 10 having a lug 25 engaging the door frame and carries a latch bolt 16 to secure the handle within its recess, the bolt being released by a lever 18 actuated by a push-button 19 which may carry a barrel lock 22. The handle has an integral or pivoted lug 14 engaging an open semicircular recess or a closed circular aperture 45a, Fig. 22, in a U-shaped cam 41 pivoted to the lock casing. This cam has a flange 46 to actuate the main latch 28, Fig. 10, which is also actuated through pins 29, 30, link 31, rod 33 and crank 35 by the inside handle 34. The latch 28 carries a lug 47 engaging the part 48a of a heart-shaped aperture 49 in the cam 41 so that when the latch is retracted, the aperture 45a is moved outwards and returns the outside handle to its recess. If, however, the handle has been moved out far enough to operate the latch, cam 41 will be swung up and lug 47 will engage part 52 of the aperture 49, so that the cam aperture 45a will swing inwards and move the handle still further out. Handle 15 can be held locked by an opposite movement of handle 34 which brings notch 37 under spring 39 and also urges a finger 60 on link 31 into engagement with a pin 61 on cam 41. If the door is open when handle 34 is so moved, slamming the door will cause pin 30 to move and release link 31 and handle 34.
Patent GB-818476-A (GB)
Title: Improvements in or relating to radar display systems
Inventor: MATTHEWS ROBERT
IPC: G01S7/10
Filed: 1954-10-15
Abstract: 818,476. Pulse radar; sawtooth generating circuits. DECCA RECORD CO. Ltd. Oct. 12, 1955 [Oct. 15, 1954], No. 29819/54. Classes 40 (6) and 40 (7). In a conical or spiral scan airborne search radar with an intensity modulated radial cathode-ray time-base rotating synchronously with the aerial scan, the time-base sweeps inwardly towards its centre of rotation in the direction of increasing range so that the periphery of the screen of the C.R.T. represents zero range and the centre of rotation represents the maximum range to be displayed. With such a display a, target directly ahead is represented by a complete luminous circle 13, Fig. 3, whose radius is inversely proportional to the target range and a displaced target is represented by an arcuate trace 12, Fig. 2, whose " clock angle " indicates the displacement. As shown in Fig. 4, the time-base is produced by applying L.F. signals from an oscillator 29 to a magslip resolver 28 driven by the antenna 32, the two outputs from the magslip being demodulated at 30, 31 to give D.C. voltages V sin # and V cos # which together with the centering voltages Vh and Vv control the horizontal and vertical sweep generators 25, 27 whose outputs are applied directly and via paraphase amplifiers 26, 27 to the deflection plates of the C.R.T. 20. The sweep generator 25 comprises an amplifier 42, Fig. 5, whose input is connected to voltage V h  + V sin # or - V sin # by an electronic switch 45 controlled by a bi-stable multivibrator 47 triggered by the pulse transmitter, negative feed-back being provided by resistor 43 or capacitor 44 such that in the lower position of the switch the output from amplifier 42 comprises a constant voltage proportional to (V h +V sin #) which maintains the electron beam of tube 20 at the periphery of the screen and when switch 45 is changed over by the transmitter trigger pulse the output from amplifier 42 decreases linearly at a rate proportional to V sin # until it reaches the value V h  as determined by an amplitude comparator 51 when the multivibrator is reversed by a pulse from the comparator. If an exponential timebase is required a resistor 53 is included in parallel with capacitor 44. A brightening pulse for the C.R.T. 20 is, derived from the multivibrator. Specifications 737,519 and 818,477 are referred to.
Patent GB-680453-A (GB)
Title: Improvements relating to the jet pipes of jet-propulsion engines
Inventor: SKORECKI JAN
IPC: F02K1/10
Filed: 1949-11-22
Abstract: 680,453. Chains. LUCAS, Ltd., J. Nov. 21, 1950 [Nov. 22, 1949; May 11, 1950], Nos. 29848/49 and 11747/50. Class 24 [Also in Group XXVI] A chain for controlling a variable area jet propulsion nozzle b, (see Group XXVI), comprises links m which have one end slotted and are interconnected by pivot pins n. Each link carries a pin o which engages a radial guide slot p in a chain housing k of channel cross-section. In a modification, figures 5-7 (not shown), each link has a control link which is pivoted in the housing. A pair of further links which secure the chain against creeping are pivoted in a cooling jacket which surrounds the chain housing. The chain is provided with rollers to accommodate a control cable surrounding it. In a further modification figures 8-9 (not shown), the chain comprises slotted links interconnected by pins n which slide in guide plates integral with the chain housing.