baber/WOPTO huggingface dataset:
Patent GB-1276490-A (GB)
Title: Analog to digital converter
Inventor: DRANGEID KARSTEN E
IPC: H03M1/00
Filed: 1971-04-19
Abstract: 1276490 Detecting signals between two limits; detecting largest signal INTERNATIONAL BUSINESS MACHINES CORP 19 April 1971 [7 April 1970] 26038/71 Heading H3T [Also in Division G4]  In an analogue to digital converter, the analogue current is compared simultaneously with a number of reference currents in a series of stages. A chain of diodes D, Fig. 2, is fed with reference currents I a . This sets up an electrical scale, with the current flowing through each stage, in the absence of an analogue current, increasing down the length of the chain. When an analogue current Ia is drawn from the up stage end of the chain, the current flow in the stages is reversed -down to that stage whose current is less than one step greater than the analogue current. While the -currents in the various stages are flowing towards earth the transistors T 1  associated with each stage are switched off. When the current is reversed, the transistor associated with the highest reverse current-stage conducts, since this transistor-has the highest base voltage. This supplies a signal to diode matrix 10 which causes a binary or gray code output to be produced on lines 1, 2 or 4. In a second embodiment Fig. 3, a second transistor T 2  is associated with each stage, giving regenerative feedback so that if T 1  conducts, T 2  is biased to give extra current driving T 1  hard on. This eliminates the possibility of two adjacent stages being actuated together. In a third embodiment, Fig. 4, the individual stages are supplied with currents I 0 , 2I 0 , 3I 0  &c. Two transistors T3 are associated with each stage. In the absence of an analogue signal the left hand transistor of each stage carries a current I 0 . When the current flows through a stage is-reversed however the right hand transistor carries a current I 0 . Thus the common collector output associated with a pair of stages has zero output if the lower stage has its current reversed and the upper stage does not. This signal is again fed to a diode matrix. Modification.-Carrier storage effects may be minimized by use of Schottky diodes and Schottky field-effect transistors.
Patent GB-506709-A (GB)
Title: Arrangement for separating synchronizing impulses in television systems
IPC: H04N5/08
Filed: 1938-09-06
Abstract: 506,709. Television receivers. BERRY, R. J. (Lorenz Akt.-Ges., C.) Sept. 6, 1938, No. 26050. [Class 40 (iii)] Mixed signals are applied over a transformer 26, Fig. 4, to a rectifier 22 which is biassed in dependence upon the mean picture signal so that synchronizing pulses only occur at terminals 4, 5. The bias is developed by a suitably poled rectifier 29 which passes the picture signals only to the resistance-capacity combination 30. An alternative circuit, Fig. 7, has the rectifier 32 biassed by the output of rectifier 35, the synchronizing signals occurring at 7, 8. The rectifiers may be thermionic diodes, and both may be contained in one envelope, Figs. 8 and 9 (not shown).
Patent GB-1317276-A (GB)
Title: Thermocouple wire adapted to be used for measurement of temperatures
IPC: G01K7/04
Filed: 1970-05-29
Abstract: 1317276 Thermoelectric devices EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG 29 May 1970 [8 Aug 1969] 26119/70 Heading H1K At least one of the limbs of a wire thermocouple comprises two or more strands of a metal or alloy having a melting point above 2000‹ C., at least one of the strands being arranged spirally relative to the wire axis, having a protective coating with a heat transfer coefficient greater than 600 k.cal./m.<SP>2</SP>h.‹C. The metal may comprise a W, Mo or Re alloy and may comprise a plurality of strands twisted together or wound spirally round one or more central conductors. The protective coating may comprise SiO 2 , Al 2 O 3 , BeO, ThO 2 , ZrO 2 , HfO 2 , CaO, or MgO, a mixture of two or more of these oxides, or a ceramic. Two such stranded wires of different materials may be threaded through a twin bore ceramic tube and fused together and into the ceramic at one end to form the hot junction. The assembly is mounted in a ceramic protective tube, Fig. 2 (not shown), or may be embedded in a brick forming part of a furnace wall, Fig. 3 (not shown). A similarly constructed thermocouple unit may be mounted on an electrical connector, Fig. 1 (not shown), the device being utilized by inserting only the sensitive tip into a molten bath to determine its temperature.
Patent GB-1193072-A (GB)
Title: Snap-Action Electric Switches.
Inventor: TAYLOR WILLIAM ERIC
IPC: H01H5/04
Filed: 1966-06-11
Abstract: 1,193,072. Snap-action switches. GEORGE TURNOCK Ltd., and H. C. SHELTON. 6 June, 1967, No. 26125/66. Heading H1N. A snap action switch comprises a pivoted lever 18 having a cam 19 that on operation of lever 18 moves a conducting bridging roller 28 between an " on " position, Fig. 3, and an " off " position (Fig. 4) against an overcentre spring 24. Roller 28 is carried in a hole 31 (Fig. 7) in an insulating carrier 27 having a spigot 29 and a portion 30 extending between the two plates (19a, Fig. 2) forming cam 19. Roller 28 co-operates with spaced fixed contacts 38 having curved contact portions 45 (Fig. 4) such that in the " on " position roller 28 is wedged between the operative surface 19b of the cam and the contact portions 45. The switch casing comprises resilient snap-fitting parts 11, 12 held together by a flange 22 and a groove or by lugs and slots (40, 41, Fig. 6). In the " off " position, roller 28 abuts webs 44 which also locate contacts 38.
Patent GB-916359-A (GB)
Title: Improvements relating to reciprocating compressor assemblies
IPC: F04B39/14
Filed: 1961-07-19
Abstract: 916,359. Compressors. COMPAGNIE FRANCAISE THOMSON-HOUSTON. July 19, 1961 [Aug. 10, 1960], No. 26178/61. Class 8(1). [Also in Group XXVI] A reciprocating compressor, e.g. for a refrigerator, comprises a piston 7 mounted within a cylinder 8 and connected to a crank pin 3 by a connecting rod 4 made in one piece, the wall of the cylinder having a groove 12 therein to allow passage therethrough of the end 6 of the connecting rod during assembly of the latter with the crank pin. The rod 4 is connected to the piston 7 by means of a spring- loaded tapered key 9 disposed within a wrist-pin rotatably mounted in the piston 7. Specifica tion 667.537 is referred to.
Patent GB-318254-A (GB)
Title: Improvements in and relating to apparatus for use in the reproduction of sound
IPC: H03F1/08
Filed: 1929-08-28
Abstract: 318,254. British Thomson-Houston Co., Ltd., (Assignees of Guedon, E. C.). Aug. 31, 1928, [Convention date]. Gramophone pick-ups; magnetic instruments. -A gramophone pick-up, which is adapted to be moved into two different operating positions for use with lateral cut or hill-and-dale records, is provided with resilient means for neutrali ing the weight of the device on the armature in one of these positions. Fig. 4 shows a construction of pick-up 1 employing a magnet 3 having bifurcated pole pieces 4, 5 between which an armature 6 is pivoted at 7. The armature is surrounded by a coil 8 and has its upper end centralized by a resilient block 10. An ordinary steel needle is employed for lateral cut records but when used with hill-and-dale records a stylus holder supporting a diamond point as shown is used, the weight of the device 1 on the armature in this position being neutralized by a spring 11 secured to the pole piece 5 and co-operating with a projection 12 on the stylus holder. In order that the spring shall always exert the same equalizing pressure, the stylus holder is grooved at the side as shown in Fig. 5, so that tightening of the screw 9 always causes it to be drawn tightly against the top of the recess in the lower end of the armature.
Patent GB-412075-A (GB)
Title: Improvements in metal elbow constructions and method of producing the same
IPC: B21C37/28
Filed: 1933-09-25
Abstract: 412,075. Making pipe elbows. CORNELL, E. S., 21, Orsini Drive, Larchmont, New York, U.S.A. Sept. 25, 1933, No. 26385. [Classes 83 (ii) and 83 (iv).] Angular bending ; flanging.-In bending metal elbows, a tube 20 with slanting edge 22 is pushed by a stepped punch 26 into a split die 23 with an angular part 24 forming an offset abutment. Sockets are formed on the elbows by enclosing the elbow within a split die 30 and expanding the ends in succession by descent of a punch 37. The elbow is positioned by a plug 35. The sockets are formed to a clear bore through the pipes connected.
Patent GB-969396-A (GB)
Title: Folder assembly
Inventor: SNELL PHILIP JOHN
IPC: B42F13/12
Filed: 1962-07-10
Abstract: 969,396. Loose-leaf binders. EDUCATIONAL SUPPLY ASSOCIATION Ltd. Feb. 13, 1963 [July 10, 1962; Oct. 26, 1962], Nos. 26467/62 and 40589/62. Headings B6A and B6E. A folder assembly comprises a pad of writing sheets having front and back cover sheets bonded together by a layer of adhesive along one edge, or, a stack of loose sheets, in combination with a folder having front and back cover portions 10, 12, one cover portion of the folder and the pad or stack of sheets having registering perforations near the spine of the folder, and a lace 46 having a toggle 22, 24 at each end which is passed through at least two sets of registering perforations in the pad or stack and folder. More than one pad or stack may be secured in each folder. The lace may be formed from elastic material and passed through one set of registering perforations twice (Fig. 2, not shown). Alternatively, the lace is formed from non-elastic material. A loose sheet 40 is included in the folder and is provided with two apertures registering with those in the folder and pad or stack. A spring clip 42 is attached to a metal ferrule surrounding one of the apertures in the sheet 40.
Patent GB-144181-A (GB)
Title: Improvements in and connected with flash light apparatus
IPC: F21K5/00
Filed: 1919-10-29
Abstract: 144,181. Shoot-a-lite Syndicate, and Lundie, G. A. Oct. 29, 1919. Magnesium and like powder lamps.-A flashlight apparatus for photographic purposes comprises a lighter A of the type described in Specification 116,501, [Class 75 (iii), Lamps &c., Details &c.], provided with side brackets D, D' which support arms C riveted to a flash-light powder-container B. The container B has its front side B<1> hinged to carry the powder and is formed with, an opening opposite the lighter. When the lighter trigger is pulled, sparks from the striker pass through the opening and ignite the powder. According to the Provisional Specification, the container is secured to arms pivoted to the lighter and may be swung out of action to allow the lighter to be used as a gas-lighter.
Patent GB-1189863-A (GB)
Title: Treatment of Geological Formations
Inventor: CROWE CURTIS WENDELL
IPC: E21B43/11
Filed: 1967-06-08
Abstract: 1,189,863. Wells. DOW CHEMICAL CO. 8 June, 1967 [6 April, 1967], No. 26485/67. Heading E1F. The permeability of a geological formation is improved by washing with an injection of an aqueous hypohalite containing 0.1 to 20 per cent hypohalite and 2 to 40 per cent of sodium silicate or 0.5 to 40 per cent alkali metal hydroxide. The washing may be followed by an injection of acid.
Patent GB-711757-A (GB)
Title: Improvements in means for obtaining an even distribution of granular material
IPC: F23J3/02
Filed: 1952-10-22
Abstract: 711,757. Shoots. BABCOCK & WILCOX. Ltd. Oct. 22, 1952 [Oct. 23, 1951], No. 26496/52. Class 78 (1) Means 10 for distributing granular and like material, e.g. steel balls of small diameter, substantially uniformly over a substantial part of the horizontal cross-section of a vertically extending duct 1 or gas pass, Fig. 1, comprises a distributer 38. Fig 2, which is rotatable about a vertical axis and is driven continuously by a constant speed motor 34, Fig. 3, through means which vary cyclically its speed of rotation. The distributer 33 is conical and has mounted on it radiallyextending ribs 40 which extend from the periphery to adjacent a central conical deflector 42. A number of holes 43 of larger diameter than the balls are formed in the distributer between the deflector 42 and the ends of the ribs. A tubular member 44 welded to the ribs fits over the tubular shaft 21 which is rotatably supported at its upper end by a ballthrust bearing 24 mounted in a framework 25. The shaft is connected by bevel gears 28, 31 to the output shaft 32 of a gear box 33 of the type in which the speed transmission ratio is continuously variable between an upper and a lower limit. The input shaft 35 is coupled to a shaft 50 on which is mounted a cam 51. A roller 52 maintained in contact with the edge of the cam is carried by a lever 53 which is mounted on a control shaft 54. This shaft by its rotation varies the speed transmission ratio of the gear box. The gas pass 1 contains tubulous heat exchanger surfaces 2a, 2b, 2c and has a hopper-shaped bottom 8 leading to a separator 14. The balls discharged by the distributer 38 fall down the duct and strike against the surfaces 2a, 2b, 2c thereby removing the deposits which have formed on them, The balls are separated from the deposits in the separator and are returned to the distributer 10 through a pipe 16 by an air current produced by a fan 15.
Patent GB-262893-A (GB)
Title: Improvements in or relating to forms for shaping, finishing and drying garments
IPC: D06C5/00
Filed: 1925-10-23
Abstract: 262,893. Paramount Hosiery Form Co., Ltd., and Bannister, R. J. W. Oct. 23, 1925. Drying frames. - A form 1 for use in shaping, finishing, and drying hose, knitted underwear, jumpers, &c. is fitted with detachable edge parts 2 of various shapes and sizes. The part 2, Fig. 1, is wedgeshaped in section and has a number of dovetailed recesses 3 to engage corresponding projections on the main part of the form. Dowel pins 7, Fig. III, plugs and sockets, or plugs and springs 10, 12, Fig. IV, or other connections may be used. The main part of the form may comprise several interchangeable parts, and may be steam heated.
Patent GB-633031-A (GB)
Title: Improvements in and relating to a precision machine tool
IPC: B23Q35/02
Filed: 1947-10-02
Abstract: 633,031. Tools for setting out work. SOC. GENEVOISE D'lNSTRUMENTS DE PHYSIQUE. Oct. 2, 1947, No. 26571. Convention date, Nov. 24, 1944. [Class 61 (ii)] [Also in Group XXII] Apparatus supporting a marking tool, a boring tool and a microscope relative to a work table, comprises a frame supporting a work table and a guideway, said tools and microscope being carried by a slide movable along said guideway above the work. table. As shown, a slide 2 is movable along a guideway 1 through a distance equal to the axial spacing between a marking tool 19 and a boring tool 21 carried respectively by sleeves 18 and 22 each vertically displaceable within the slide by a rack and pinion means. A microscope 7 also supported by the slide comprises a fixed portion having ocular and objective lenses 9, 10, and a portion consisting of a pair of prisms 11, 12 supported by a member 13 for horizontal sliding movement within a sheath 14 so that in its operative position, as shown, the effective axis of the microscope is coincident with the axis of the marking tool, said member 13 being retractable when it is desired to use the marking tool. The slide is held in engagement with the guideway and one or other of the abutments 4, 5, by spring means carried at the free end of a radially adjustable arm pivoted to the frame to the rear of the guideway The Specification as open to inspection under Sect. 91 includes also the construction described in Specification 642,151. This subject-matter does not appear in the Specification as accepted.
Patent GB-645671-A (GB)
Title: Improvements in or relating to power plants
IPC: F01K23/06
Filed: 1948-10-13
Abstract: 645,671. Gas and steam turbine power plant. BAUMANN, K., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 13, 1948, No. 26683. [Class 110(iii)] Steam for a turbine 15 is generated in a heater 6 in a combustion chamber 5 which supplies working fluid for a gas turbine 12. The steam is superheated in a heater 9. The condensate which is returned to the generator by a pump 18 is heated at 17 by a steam bled from the turbine. The gas turbine 12 exhausts to turbines 13, 14 in series and the gas is reheated for each stage in heaters 10, 11. The turbines 13, 14 drive air-compressors 3, 1, with an intercooler 2 and the air is preheated at 4 by the gas exhaust. The combustion chamber temperature at the heaters 9, 10, 11 may be reduced by the admission of extra air through the line 23. The steam turbine may be in two stages with reheating between the stages and the gas turbine exhaust may be used to heat the feed-water. The steam turbine set may be replaced by a closed circuit air turbine set. The air circuit may be connected to the delivery of the compressor 3 so that the mass flow in the circuit will vary with the delivery pressure of the compressor 3.
Patent GB-444099-A (GB)
Title: Speedometer
IPC: G01P1/08
Filed: 1935-09-26
Abstract: 444,099. Speed and braking-distance indicators. BORER, P. T., 41, Schl÷ssliestrasse, Berne, and FASNACHT, A., Mechniker, Delsberg, both in Switzerland. Sept. 26, 1935, No. 26686. Convention date, Oct. 31, 1934. [Class 106 (iii)] A speedometer needle 14 travels over two scales 23, 24 showing speed per hour and per second respectively, and intersects another needle 8 which is set automatically by an accelerometer, before each journey, to correspond with the efficiency of the brakes, the point of intersection of the two needles indicating to the driver by its position over a series of curves the necessary stopping distance including a distance corresponding to one second for the time taken to apply the brakes. The accelerometer is of known type comprising an unbalanced wheel 1 held at its maximum displacement by a pawl 2 engaging fine ratchet teeth on the wheel. By pressing inwards a rod 17, the pawl 2 is disengaged and the wheel re-set. Fig. 4 shows a modification wherein the braking distance curves are traced in a quadrant 25<1> between the scales 23<1>, 241 representing speeds per hour and per second, the speedometer pointer 14<1> being subdivided to show the various braking efficiencies. When the brake efficiency has been determined by an accelerometer 3<1> by means of a preliminary brake test, the stopping distance is found by following the corresponding mark on the pointer.
Patent GB-755921-A (GB)
Title: Improvements in or relating to control apparatus for fluid fuel burning appliances
Inventor: WEBER VICTOR
IPC: D06F58/30
Filed: 1950-11-01
Abstract: 755,921. Thermal switches. ROBERTSHAW FULTON CONTROLS CO. Nov. 1, 1950, No. 26686/50. Class 38(5) [Also in Groups XI, XIII and XXIX] In a control apparatus for a clothes drying machine incorporating a burner system (see Group XI), for heating a rotary drum associated with a fan and containing the clothes to be dried, the energizing circuit of the motor 16 driving the fan and drum is completed by the closing of a switch comprising a contact 144 carried by a pivoted lever 140 and a fixed contact 146. The switch is closed during the starting up operation by pressure applied through a push button 88 and rods 114, 116, to tilt a pivoted lever 154 to allow a spring 148 to rotate the lever 140. The lever 154 is held in its tilted position by a spring pressed pivoted latch 162. If during operation of the machine a pilot burner 14 becomes extinguished a thermocouple 76 ceases to generate sufficient energizing current for an electromagnet 80 to hold an armature 82 against the action of a spring 86, so that the armature is moved by the spring to tilt a lever 106 carrying an arm 110 which operates a pin 168 to release the latch 162. The lever 154 under the action of a spring 160 tilts the lever 140 to disengage the contacts 114, 146. A thermostatic control including a switch having contacts 176, 178, is provided for closing down the drying machine when a predetermined temperature has been reached in the drum 10, and comprises a liquid containing bulb 18 within the drum 10 connected by a capillary tube 20 to an actuating element 22, carried by a rod 196 threaded through a wall 24, and manually adjustable by means of a dial 194 having the usual temperature indicia. As the temperature of the bulb 18 increases the actuating element 22 expands to rotate clockwise, about a knife edge 190, a lever 180 to produce a snap action anti-clockwise rotation, by means of a spring 182, of a lever 174 about a knife edge 186 to close contacts 176, 178. Simultaneously or upon a further rise in temperature causing additional clockwise movement of the lever 180, the depending end of the latter will dis-engage the latching element 162 from the lever 154 so that the contacts 144, 146 open. The motor 16, however continues to run, being energized through a circuit including the contacts 176, 178 which do not open until the element 22 contracts sufficiently to cause over-centre snap action of the lever 174. The contacts 144, 146 are also disengaged, if during the drying operation the temperature of the appliance becomes undesirably high, when a fusible link 234 melts to allow a spring 230 to tilt a pivoted lever 228 to disengage the latch 162 from the lever 154. Specification 662,437 is referred to. Reference has been directed by the Comptroller to Specification 655,745 [Group XI].
Patent GB-1222135-A (GB)
Title: Metal clad switch plants
IPC: H02B13/035
Filed: 1968-06-05
Abstract: 1,222,135. High-voltage switchgear structures. COQ N.V. 5 June, 1968 [9 June, 1967], No. 26722/68. Heading HlN. A switchgear has a plurality of individual metal-clad switch units 15 detachably mounted upon a metal-clad bus-bar system 25, 26, each of the units enclosing a main circuit breaker and the movable contacts 21, 22 of two bus-bar isolating switches and the bus-bar units 35, 36 enclosing the fixed contacts 23, 24 of the isolating switches. The fixed contacts are covered before removal of the switching unit 15 by sliding shutters 38. The unit shown in Fig. 4 is an input/output unit, for connecting a cable 29 to the bus-bars, and thus includes an additional plug-in connection 27 to one side of the breaker, the bus-bar isolators 21, 22 being connected together to the other side. The isolators 21, 22 are located at two adjacent corners of a square whose centre is on the axis of unit 15 so that by rotating the unit through 90 degrees about its axis units of similar design may be employed for bus-coupling and bus-sectioning; in each of these units the circuit breaker is connected between the isolators and the plug connection 27 is omitted. The circuit breakers are of the reclosing multi-break gas blast type with integral isolators 19, 20, chamber 15 being filled with SF 6 . The isolators are pneumatically operated. The chamber 15 may also enclose earthing switches, transformers, capacitors and testing apparatus (none shown).
Patent GB-1217686-A (GB)
Title: New process for manufacture of monoazo dyes
Inventor: BUDZIAREK RICHARD
IPC: C09B62/085
Filed: 1967-06-09
Abstract: 1,217,686. Process for preparing reactive monoazo dyes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 4 June, 1968 [9 June, 1967], No. 26794/67. Heading C4P. Reactive monoazo dyes of the general formula T 1 -NH-A-N = N-E-T 2 , wherein A is an aromatic radical, e.g. benzene, having one or two sulphonic acid groups, E is a coupling component radical which carries an amino group having a hydrogen atom capable of reacting with a chloro-s-triazine compound, e.g. 1- amino-8-hydroxy naphthalene 3,6-disulphonic acid or a 1-(amino-aryl)-3-methyl- or -carbonyl- 5-pyrazolone, and T 1  and T 2  are s-triazinyl-2 radicals having a chlorine atom at the 4-position and an amino group or organic radical linked through an oxygen or nitrogen atom at the 6-position, are prepared by reacting a monotriazine compound of the formula with a dichlorotriazine compound having as further substituent an amino group or an organic radical linked to the nucleus through an oxygen or nitrogen atom. The preparation of the intermediate starting dyestuffs of the formula T 1 -NH-A-N=N-E-H is described.