baber/WOPTO huggingface dataset:
Patent GB-608424-A (GB)
Title: Improvements in or relating to ladders
IPC: B63B27/14
Filed: 1946-02-22
Abstract: 608,424. Ladders. HALLEN, A. E. Feb. 22, 1946, No. 5648. [A Specification was laid open to inspection under Sect. 91 of the Acts, Feb. 22, 1946.] [Class 20(ii)] A gangway &c. ladder whose sides are stiffened by beams &c. in a plane perpendicular to that of the ladder, has the beams so mounted that they may be swung into a plane substantially parallel to the ladder plane. The ladder comprises tubular sides 4 and linkage 5 whereby the steps 3 are maintained horizontal for all inclinations of the ladder. Upper and lower platforms 1, 2 also remain horizontal. Beams 9 which stiffen the sides 4, and which may be metal tubes, and bracing members 11, are mounted on sockets 10 which can turn through about 90 degrees from the position shown, to approximately the plane of the ladder, to facilitate stowage. The supporting sling 25 is coupled to extensions on the sockets 10.
Patent GB-981865-A (GB)
Title: Measuring and recording arrangements
Inventor: GAULT VINCENT ARTHUR
IPC: B23Q35/121
Filed: 1960-02-17
Abstract: 981,865. Electric indicating systems. RANK PRECISION INDUSTRIES Ltd. Feb. 15, 1961 [Feb. 17, 1960], No. 5667/60. Heading G1N. In a system for sensing and recording a contour of an object in approximately concentric rotational relationship with a sensing member,means are provided for deriving from the contour signal a signal for recording a reference trace. A contour of object 1 is followed by feeler 6 which actuates a transducer and produces a gauge signal, including contour and eccentricity components, which is amplified at 12. In one embodiment (Fig.1) during a first revolution of the feeler the gauge signal is fed through contact A of switch 13 to a pen recorder 10 and produces an eccentric trace on chart 9 which rotates synchronously with the feeler. The gauge signal is also fed to a storing integrator 16, which determines the mean value of the contour signal, and through a sine-cosine potentiometer 18 to storing integrators 20, 23 which determine the cosine and sine of the eccentricity component of the signal. During a second revolution of the feeler switches 15, 19, 22 are opened and switch 13 is moved to position B so that the stored signals are fed to the recorder through summing amplifier 17. The sine and cosine compartments of the eccentricity component are first passed, respectively, through sine and cosine potentiometers 24, 21 so that a mean trace is produced on the chart which has the same eccentricity as the contour trace. Switches 15, 19 and 22, integrator clearing switches 25, 26 and 27, and potentiometers 18, 21 and 24, are operated synchronously with feeler 6. In a second embodiment (Fig. 3) during a first revolution integrators 16, 20 and 23 store the same information as before, switches 30, 31, 32 and 33 remaining open. During a second revolution these switches are closed and the signals from the three integrators are backed-off against the gauge signal, obtained through phasereversal device 34, leaving only the contour component which is then superimposed on an adjustable reference potential from source 29 and produces a trace concentric with the chart centre. In this embodiment the amplitude of the contour signal can be adjusted independently of the reference trace. A mean trace from integrator 16 may then be drawn during a third revolution. The systems may be adapted to recorders using rectangular coordinates. Specifications 706,763, 706,837, 706,838 and 950,312 are referred to in the Provisional Specification.
Patent GB-115074-A (GB)
Title: Improvements connected with Stamp Affixing Machines.
IPC: B65C11/02
Filed: 1917-04-23
Abstract: 115,074. New International Stamping Machine Co., and Davis, W. J. April 23, 1917. Hand stamps; printing-surfaces.-The plunger head 2 of a stamp affixing and cancelling machine has hinged thereto a plate 3 provided with an aperture 6 adapted to receive type 7 with flanges 7<b>, which are held between the head and the plate, a rubber or other resilient cushion 8 being preferably provided. The plunger is retained in the depressed position shown in Fig. 2 to facilitate the changing of the type by a catch 10 adapted to engage a recess 9 in the plunger. The catch is normally held in the retracted position by a spring 11, but when pressed into the recess in the plunger it is retained in frictional engagement therewith, as the plunger is pressed upwards by its spring. The plunger is released by depressing it slightly so as to permit the spring 11 to withdraw the catch 10. The plate 3 is urged against the head 2 by a spring 5 and its outer face is covered with rubber.
Patent GB-1101256-A (GB)
Title: Chart-recording instrument
Inventor: KLEIMENOV JURY VIKTOROVICH
IPC: G01D15/28
Filed: 1966-02-09
Abstract: 1,101,256. Recording instrument. MOSKOVSKY INSTRUMENTALNY ZAVOD "KALIBR". Feb. 9, 1966, No. 5764/66. Heading G1J. A chart recording instrument includes a sensing measuring device 17 a rotatable output element 11 adapted to be rotated through an angle directly proportional to the measurement sensed and having a cross-arm 9 pivotally connected with one degree of freedom to an extended marking pen 8 that is capable of travelling across the recording strip 1 at the rotation of the output element, the axis X of rotation of the output element being at an acute angle α to the plane of the recording strip 1, the approximate value of this angle being calculated from the following formula: where R, a, p are as shown in the drawing. In the embodiment described the parameter being recorded are movements of a feeler 17 which moves over a surface 16 under test. Electric signals passed from the feeler 17 to a coil 12 located in the field of magnet 13 to rotate the coil 12 through an angle directly proportional to the magnitude of the electric signal. Rotation of coil 12 with shaft 11 is transmitted through cross-arm 9 to pen 8, the axis of rotation X-X of shaft 11 being at an acute angle α to the plane of the recording strip 1 in order to obtain a rectilinear record on the strip.
Patent GB-588806-A (GB)
Title: Manufacture of ethers
IPC: C07C41/01
Filed: 1945-03-08
Abstract: Ethers of the formula R1OR are prepared by treating a nitrite of the formula R.ONO with a salt of a primary amine of formula R1NH2, wherein R1 is an alkyl, substituted alkyl, aryl, aralkyl, cycloalkyl or heterocyclic group and R is an alkyl or aralkyl group.  The amine salt may be the hydrochloride or sulphate and may be formed in situ. The reaction may take place in the presence of the corresponding alcohol ROH. In the examples: (1) benzylamine hydrochloride and ethyl nitrite are reacted in absolute alcohol to give benzyl ethyl ether; (2) 2-methyl-4-amino-5-aminomethyl pyrimidine dihydrochloride is treated with ethyl nitrite in alcohol or benzyl nitrite in benzyl alcohol or amyl nitrite to give 2-methyl-4-amino - 5 - ethoxy-, benzyloxy- or amyloxy - methyl pyrimidine; (3) ethyl nitrite in absolute alcohol is reacted with aniline hydrochloride giving phenyl ethyl ether; b -naphthylamine giving b -methyl naphthyl ether; 1-diethyl amino-4-amino pentane dihydrochloride giving 1-diethyl amino-4-ethoxy pentane; cyclohexamine hydrochloride giving cyclohexyl ethyl ether; 2-aminopyridine hydrochloride giving 2-ethoxy pyridine; b -alanine hydrochloride giving ethyl b -ethoxy propionic acid.
Patent GB-904103-A (GB)
Title: Improvements relating to rope dynamometers for hoisting installations in mine shafts
IPC: G01L5/04
Filed: 1960-02-18
Abstract: 904,103. Dynamometers. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Feb. 18, 1960 [Feb. 18, 1959], No. 5833/60. Class 106 (2). A rope dynamometer for hoisting installations in mine shafts comprises a measuring element for laterally deflecting a gauge length of the rope, which element is arranged to measure the rope loading only when the rope is non-moving and to remain in a disengaged position during a hoisting movement of the undeflected rope. When the piston 12 of a motor 11, which normally holds a deflecting shoe 1 off the rope 2 of a hoisting engine, allows a weight 9 to apply the shoe to the rope, a pointer 14 indicates on a scale 15 the deflection of the rope between sheaves 16 and 17, which deflection is a measure of the rope loading; and, at the same time, a switch 13 in the circuit-releasing the lock of the hoisting engine is opened, so that the engine, which has been stopped for this measurement, cannot be accidentally re-started. The measurement may be taken instead on the other run 2<SP>1</SP> of the rope. Abutments 19 at the ends of a spring 18 are applied by means of a screw 20 and deflect the rope into contact with a stationary counterabutment 21. The rope loading is deduced from the spring deflection, indicated on a scale 22, in conjunction with the deflection 24 of the rope, indicated by a device 23. The spring 18 may be replaced by a rigid bar 18<SP>1</SP> bearing abutments 19 and moving with a piston-rod 26<SP>1</SP>, whilst the counter-abutment 1 is carried by the coacting cylinder 25, which is free to slide longitudinally, so that abutments and counter-abutment move in opposite directions, to deflect or release the rope, as fluid is admitted through port 31 or 30. In a multi-fall hoist, a device is provided for each rope, the conduits 30, 31 supplying the individual cylinders in turn, through a valve station. The abutments 19 may be replaced by two rollers 37, permanently engaged with the rope, a single-acting motor, operated by a pump 34, applying the shoe 1 and a spring 38 returning it.
Patent GB-494218-A (GB)
Title: Improvements in methods of, and apparatus for severing metals by fusion
IPC: F23D14/42
Filed: 1938-02-24
Abstract: 494,218. Dividing by fusion. LINDE AIR PRODUCTS CO. Feb. 24, 1938, No. 5836. Convention date, Feb. 27, 1937. [Class 83 (iv)] [Also in Group XI] For metal cutting a fuel gas jet L<1> and an oxidizing gas jet L <11> are directed against successive portions of a metal body B sufficiently close to one another to form a diffusion flame and an oxidizing gas jet J is directed against the heated metal. The jets L<1>, L" preferably have a velocity of from 35 to 175 feet per second and the jet J has a velocity of from 600 to 1800 feet per second when completely severing metal and from 200 to 1000 feet per second when removing metal from a metalsurface. When cutting at high speeds or on rough surfaces, a small amount of the oxidizing gas may be mixed with the fuel gas before discharge from the burner nozzle. The burner nozzle shown in the Figure comprises inner intermediate and outer members 14, 16 enclosing passages C, I, O for the jets J, L<11>, L<1> respectively. The outlets for the jets L<1>, L<11> may be annular or be formed by rings of spaced orifices. The lower portions of the passages L, O may be inclined to the passage C.
Patent GB-608483-A (GB)
Title: Improvements in or relating to internal combustion engine fuel regulating systems
IPC: F02D9/00
Filed: 1946-02-25
Abstract: 608,483. Fuel-injection pumps. SHELL DEVELOPMENT CO. Feb. 25, 1946, No. 5840. Convention date, April. 2, 1945. [Class 102 (i)] [Also in Group XXVII] In a multi-cylinder internal-combustion engine a diaphragm fuel pump 16 supplying fuel to injectors 81 in the air-intake passages is actuated by an eccentric 21 reciprocating a link 20 having a hook 23 engaging a hook 24 on the diaphragm 17, the dry side 18b of the pump being connected to the air intake manifold 10.
Patent GB-603578-A (GB)
Title: Improvements in or relating to rotors for compressors, turbines and like
IPC: F01D5/06
Filed: 1945-03-08
Abstract: 603,578. Securing parts on shafts. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and WHITEHEAD, L. T. March 8, 1945, No. 5842. [Class 80 (ii)] [Also in Groups XIII and XXVI] In a drum rotor of the type in which the rotor is made up of a single hollow cylindrical or frusto-conical drum carried at its ends by radial elements such as discs, the drum element is drivingly connected to the radial elements by radially extending surfaces which have individually complete and unrestrained freedom to slide relatively in the radial direction. The drum 1, Fig. 3, is drivingly attached to the radial element or disc 2 by radial pins 3 which are retained against radial displacement by peening over the lips of the holes as at 4. The pins 3 allow free relative radial movement between the drum elements. The pins 3 may also be retained in position by screwed plugs or may be fast in one element and slidable in the other. In a modification, Fig. 4, the edge of each disc is notched to form projections 5 which engage complementary projections 6 in the ends of the drum 1. Annular locking rings 7 secured to the drum hold the rotor parts together.
Patent GB-715847-A (GB)
Title: A work-piece carrying attachment or component for an automatic or other lathe
Inventor: ADCOCK HORACE RAY
IPC: B23Q7/04
Filed: 1952-03-06
Abstract: 715,847. Lathe details. WICKMAN, Ltd. March 3, 1953 [March 6, 1952], No. 5860/52. Class 83 (3). A lathe attachment for supporting a workpiece so that an additional operation can be performed on it after it has been severed from a stock-bar comprises a slide a, Fig. 1, a workcarrying arm f pivotally mounted on the slide and movable through 180 degrees between two horizontal positions, a rack j slidably mounted on the slide, a pinion h fixed to and having its axis on the pivot axis of the arm f, an intermediate pinion i rotatably mounted on the slide and engaging the rack and the pinion h, a longitudinally slotted locking arm k fixed to and extending from the intermediate pinion i, and a fixed stop m on the lathe bed b engaging the locking arm. The work d on being severed is received in a socket g in the end of the arm f. The rack j is reciprocated by a link n through means not described. The slide a is retracted by the link n until the closed inner end of the slot in the locking arm strikes the stop n. The slide is then held stationary and continued movement of the link causes the rack to move relatively to the slide. This causes the arms f, k to be moved relatively to each other through 180 degrees, thus bringing the work into a position adjacent to the tool t which performs the additional operation. This tool may be a slotting saw, a burr, or, a drill. An ejector o, Fig. 4, removes the work from its holder on return movement of the slide.
Patent GB-678357-A (GB)
Title: Improvements in or relating to cooling systems for rotary electrical apparatus
IPC: H02K9/20
Filed: 1951-03-13
Abstract: 678,357. Cooling systems for electrical machines. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 13, 1951 [April 14, 1950], No. 5978/51. Class 64(iii) A cooling system for a rotary electrical machine 1 comprises a heat-exchanger having a portion 5 inside said machine and a portion 6 outside said machine, the heat exchanger containing a fluid which is liquid at the temperature prevailing outside said machine and is vaporized at the temperature prevailing inside said machine. In the form shown the portions 5, 6 comprise finned tubes interconnected at upper and lower points 7, 8 and forming a closed system containing a heat transferring fluid such as acetone, methyl alcohol or " Freon- 12 " (R.T.M.). The heat transferring fluid evaporates in the portion 5 due to the heat generated within the machine when operating, and the expanding vapour passes through the interconnection point 7 to the outer portion 6 of the system in which the vapour is condensed to flow back to the inner portion 5 of the system by way of the lower interconnection point 8.
Patent GB-1413041-A (GB)
Title: Dipole aerial
IPC: H01Q13/08
Filed: 1973-02-07
Abstract: 1413041 Aerials MEL EQUIPMENT CO Ltd 7 Feb 1973 6040/73 Heading H4A Each arm of a dipole aerial is coplanar with a respective outer conductor of a triplate transmission line, one arm being connected to a centre conductor of the line, and the other arm being connected to an outer conductor of the line. Each outer conductor has one or more edge portions substantially forming a line reflector parallel to the dipole. Corresponding points of the two outer conductors adjacent the said edge portions are electrically interconnected by members which extend therebetween, and which are spaced apart by intervals of less than a quarter-wavelength at the mid-band operating frequency of the dipole. As described two dielectric material sheets 1, 2 which are initially completely clad with copper foil on both sides are processed by standard printed circuit techniques to provide conductive patterns as shown. On the outer face of the sheet 1 the foil is shaped to form one outer conductor 3 of a triplate transmission line, and two corresponding dipole arms 5A, 6A, each connected to the outer conductor. The foil is entirely removed from the inner face of the sheet 1. On the outer face of the sheet 2 the foil is shaped to form the other outer conductor 4 of the triplate transmission line and two other corresponding dipole arms 5B, 6B. These arms are separated from the outer conductor by narrow gaps 5C, 6C. On the inner face of the sheet 2 the foil is shaped to form the inner conductor 7 of the triplate transmission line, leading to a first port of a four-port hybrid ring 8 acting as a power divider. Second and third ports of the hybrid ring are respectively connected to one arm of each dipole, and a fourth port is connected to a central pill-shaped resistive matching load. The connections to the dipoles are made through quarter wavelength matching sections 11, 12 leading to higher impedance sections 13, 14, the ends of which are respectively connected to the arms 5B, 6B by rivets passing through the sheet 2. The two inner faces of the sheets are placed together and they are mechanically connected together by rivets around the edges of the outer conductors, which are thereby electrically connected together. The rivets are spaced at intervals of less than a quarter wavelength, and are arranged to be well clear of any part of the central conductive pattern (Fig. 4 not shown). Edge portions 15 of the outer conductors 3, 4 serve as reflectors for the dipoles, and directors may also be provided. The aerial may be mounted within a relatively slim radome on the outside of an aircraft. The radome may be filled with foamed dielectric material, and a layer of R.F. absorbing material may be put between the aerial and the skin of the aircraft.
Patent GB-564934-A (GB)
Title: Improvements in radio-transmitters
IPC: G01S1/02
Filed: 1943-04-15
Abstract: 564,934. Valve modulating circuits; directive wireless systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., GREEN, E., and CLOUGH, N. H. April 15, 1943, No. 6072. [Class 40 (v)] A keyed radio transmitter, particularly intended for use in an equi-signal beam system, has an audio-modulating valve connected in series with a radio-frequency stage between the terminals of a high-tension source, the audio valve being on the positive side and having the audio voltage applied between its grid and the negative side of the source. The high-frequency energy in the load circuit may be regulated according to the level of the audio signal, and may be maintained substantially constant in spite of fluctuations due to keying. Audio signals from a source G are amplified in the valve V1 and applied by a potentiometer R2 to the grid of a valve V2 which has its anode directly connected to the grid of the modulating valve V4. This valve is connected in series with a push-pull pair of carrier amplifiers V5, V6 across the supply source HT2, the modulating- yalve V4 being on the positive side. The grid of the valve V2 also receives a negative bias from a bias potentiometer R4, and a further bias from a resistance R6 in the anode circuit of a rectifier valve V3, whose grid is fed with audio signal from the valve V1 through a potentiometer R3. The valve V3 is supplied from a separate source HT3 and is shunted by a resistance R7 and smoothing condenser C7. The bias on V2 is thus rendered variable in accordance with the strength of the audio signal from G, and this variable bias is transferred to the grid of the valve V4 and operates to increase the mean carrier strength in accordance with the audio signal strength. The output from the carrier amplifiers is fed from the coil L8 to an aerial or load circuit Ld1. When used in an equi-signal beam system, a second output to a load circuit Ld2 is taken from coils L3, L4 through a phase-reversing keying-device K3. This output may be arranged to feed a rectifying circuit through the tuned coil L10, giving a rectified voltage across a resistance R8 in the grid circuit of the valve V2, thus maintaining the carrier output substantially constant despite fluctuations due to the keying. The two load circuits may be fed from separate carrier amplifiers in parallel with each other and in series with a single modulating-valve V4 or with separate modulating-valves. The tone frequency from the source G may be keyed by a switch in the grid circuit of the valve V1. Specification 470,421 is referred to.
Patent GB-396142-A (GB)
Title: Improvements relating to air-porous paper and process of making the same
IPC: D21F11/14
Filed: 1932-02-29
Abstract: 396,142. Porous paper ; craped paper. ARNOLD, C., 11, Southampton Buildings, London.-(Air-Way Electric Appliance Corporation ; 2101, Auburn Avenue, Toledo, Ohio, U.S.A.) Feb. 29, 1932, No. 6075. [Class 96.] Paper for the suction bags of vacuum cleaners is made strong and porous, e.g. so that it allows 25-55 cubic feet of air through an 11¥-inch square under a pressure-drop of 2 inches of water but is impervious to particles the size of those of wheat flour, by lightly beating rag, sulphite, suplhate or other cellulosic stock to which may be added a little chopped rope, hemp, jute, &c., the beating being just sufficient to allow evenness of flow of the pulp which is loosely felted into a web having " wild fibre " characteristics, e.g. on a Fourdrinier wire at 250-500 feet per min. with shake at 150-200 per min. and less than “ inch amplitude, the interstices of the web being opened by the suction. The paper weighs not less than 30 lbs. per ream and is preferably applied wet to a roll and craped by a doctor blade and the craping may be repeated after again moistening the paper.
Patent GB-238474-A (GB)
Title: Improvements in or relating to stringed musical instruments
IPC: G10F1/18
Filed: 1925-03-05
Abstract: 238,474. Wade, H., (Mills Novelty Co.). March 5, 1925. Keyboard stringed instruments; violin mutes. -The mute of an electrically-played violin is applied through a resilient connection so as to be unaffected by actuation of the tremolo device. The violin is described as combined with an electrically-operated pianoforte in which actuation, by means of a solenoid or series of solenoids of the hammer rest-rail, closes the muting-circuit of the violin. The muting circuit includes an electromagnet 22 which when energized attracts an armature 18 padded at 25 and operating through a spring 20 a lever 15, 15a pivoted at 16 on a fixed support 23 and carrying the mute 17 which is pressed against the side of the bridge B<1>. Tn a modification, the arm 15 is formed as a spring and directly carries the armature.