baber/WOPTO huggingface dataset:
Patent GB-634560-A (GB)
Title: Improvements in or relating to electric current indicating devices
IPC: G01R19/20
Filed: 1948-03-01
Abstract: 634,560. Current measurements. BRITISH TRANSPORT COMMISSION, and READMAN, A. March 1, 1948, No. 6470. [Class 37] A low resistance shunt 8 included in a D.C. line 9, the current in which is to be measured, is connected to a winding 7 on the centre limb 5 of a transformer core 1, the outer limbs 3, 4 of which are wound with a primary winding. 2 connected through a resistance R to an A.C. source 6 and a secondary winding 11 connected to an A.C. meter 13 of the thermal storage type, which provides a considerable lag. When no current flows in the line 9 the core 1 operates at or beyond the point of maximum permeability and the meter 13 gives a maximum indication. When current flows in the line 9 an additional unidirectional magnetizing force is superimposed on the core and reduces its permeability so that the secondary voltage is reduced and the meter 13 gives a lower reading. The meter 13 may be calibrated to show directly the current in the line 9 and may be provided with high and low limit contacts 15, 16 at which the circuit of alarm devices 19, 18 is closed at predetermined high and low deflections of the pointer 17.
Patent GB-969438-A (GB)
Title: Improvements in or relating to hatch cover arrangements
IPC: B63B19/203
Filed: 1963-02-18
Abstract: 969,438. Hatch covers. GOTAVERKEN A.B. Feb. 18, 1963 [March 20, 1962], No. 6498/63. Heading B7S. In a hatch cover comprising a plurality of pairs of sections 6-7, 8-9, 10-11 foldably connected to one another (by hinges 12, 13, 14), which are supported by wheels 15, 16 running on tracks arranged along the coaming 2 and which in connection with the uncovering of the hatchway are stowed on a ramp 3 outside the hatchway and where the first sections 6, 8, 10 of each pair located closest to the ramp is wider than the second section 7, 9, 11 of the same pair, said first section is supported by a pair of running wheels 15 serving as a centre for the folding movement arranged near to the transverse axis through the C.G. of the section and is provided with guides for co-operation with the ramp or with a preceding pair of sections in such a manner that said running wheels 15 during the later part of the opening movement are raised from the ramp and the section is supported in open position by the guides. The guiding of the first section 6 of the first pair of sections consists of rollers 17 arranged at the front corners and adapted for co-operation with vertical guiding slots 18, while following pairs of sections are united to preceding pairs by links 25 serving as guides. The ramp is provided with brackets 26 which form supports for the lower part of the links when the first section is raised into vertical position.
Patent GB-174296-A (GB)
Title: Improvements in baking ovens
IPC: A21B1/46
Filed: 1921-02-26
Abstract: 174,296. Hedemann, E. Feb. 26, 1921. Bakers' ovens.-An oven comprises detachable wall and roof sections, each having an internal packing of asbestos or other insulating- material, and external air-circulating passages. Each section comprises inner, intermediate, and outer plates 15, 17, 16 respectively, the inner and intermediate plates 15, 17 being spaced by insulating packing ' 11, and the outer and intermediate plates 16, 17 being spaced by channel members 20, which form a plurality of vertical air passages 19 open at 28 to the atmosphere and communicating at their upper ends at 29 with registering openings 30 in the roof casing. The channels 20 may be insulated from the plates 16, 17 by layers of asbestos 21, 22. The roof section is similarly formed. the channels 20 being arranged radially to conduct the air to the vent 31, and the combustion products escaping at 32 assisting the air flow by injector action. The front .section is provided with a vertically-sliding door 33, the channels 20 leading to a horizontal conduit 38 which is in communication with vertical passages 37 situated at the ends of, and containing the balance weights 36 of, the door 33. The lower part of the front is provided with examination doors 41 and an opening for the burner pipes 43. The wall sections are closed with stepped straps 23, 24, riveted to the plates, and outer straps 25, having lugs 26 for the reception of the bolts which hold the sections together, are provided. The oven is preferably of the reel type.
Patent GB-609308-A (GB)
Title: Walls for buildings
IPC: E04B2/28
Filed: 1945-03-15
Abstract: 609,308. Walls, BRITTENDEN, J. E., and PARKINSON & CO., Ltd., Sir L. March 15, 1945, No. 6562. [Classes 20(iv) and 87(i)] A wall comprises pre-formed slabs 1 of reinforced concrete or similar material bolted together and having inwardly directed vertical flanges 4 with rebates 5 on the outsides in which inserts 6 of nailable material (for fixing an inner wall 15) are held, through which pass the bolts 7, and pre-formed corner posts 10 having rebates 11 on two sides at right angles at the inside corner so that further nailable inserts 12 are held between these sides and the slab flanges 4, the posts carrying threaded sleeves 13 which receive screws 14 clamping the slabs to the posts. The slabs may be flanged on all four sides and of storey height and timber plates, which support the roof, may be bolted to the top flange with flashing material interposed. The bottom flange may be grooved to receive a projection on a supporting sill unit which rests on a concrete foundation covered with waterproof jointing material extending up to floor level.
Patent GB-216944-A (GB)
Title: Improvements in or relating to variable electric resistances
IPC: H01C10/48
Filed: 1923-03-07
Abstract: 216,944. Co-operative Cinematograph Co., Ltd., and Street, H. March 7, 1923. Regulating-switches.-An adjustable resistance 16 is placed in parallel with the resistance between any two adjacent contact studs of a resistance 15 by means of a rotary switch comprising a pivoted arm 7 a continuous contact 14 and contact fingers 11, 12 separated by an insulating block 13. In a modification shown in dotted lines in which a switch having a single contact finger is employed the adjustable resistance is connected in parallel with the first step of the resistance 15. In a further modification the pivoted arm 7 is insulated from both contact fingers 11, 12, the adjustable resistance 16 being connected to one of the fingers through the continuous contact 14 and directly to the other contact finger.
Patent GB-228377-A (GB)
Title: Improved manufacture of colloid layers containing chromate colloids sensitive to light
IPC: G03C1/66
Filed: 1924-03-14
Abstract: 228,377. Wadhams, W. H., Ziehm, A., Sondermann, H. A., and Woithe, P. March 14, 1924. Bichromated colloid processes -The sensitiveness of colloid layers containing potassium bichromate is increased by adding thereto a base metal compound, such as magnesium or nickel chloride or manganese sulphate, and an acid salt, such as acid sodium phosphate. Less effective metal compounds are chlorides of iron and copper. The sensitiveness of such layers is further increased bv also adding aniline hydrochloride, which produces a marked increase evem withoat the inclusion of an acid salt. The colloid layer may be dipped into a solution of the sensitizing agents, or an emulsion of gelatin, gum, starch &c. with these agents may be coated on celluloid, paper or glass. Development of the exposed layer is effected in known manner at about 45‹ C. in pure water, or in watar containing ammonia and borax, and the image may be coloured in any manner.
Patent GB-979912-A (GB)
Title: Improvements in the distribution of ensilaged fodder
IPC: A01K5/02
Filed: 1963-02-19
Abstract: 979,912. Discharging vehicles. H. BIEHL. Feb. 19, 1963 [March 1, 1962], No. 6697/63. Heading B8E. Apparatus for transferring silage from a silo to a feeding station comprises a fodder tank 1 supported on a chassis 9 and a pump 4 driven by an electric motor 7, which pumps the silage from container 1 to the feeding station via pressure pipe 6 and hose connection 14. An indicating device 2, 2a gives a signal when the level of silage in the tank falls below a certain point. The pump is controlled by a time switch whereby the amount of fodder delivered by pump 4 can be metered. Specification 979,911 is referred to.
Patent GB-1117854-A (GB)
Title: Radiation beam control apparatus
IPC: G06V30/144
Filed: 1967-02-13
Abstract: 1,117,854. Pattern recognition. INTERNATIONAL BUSINESS MACHINES CORPORATION. 13 Feb., 1967 [14 March, 1966], No. 6710/67. Heading G4R. Apparatus for controlling the movement of a beam of radiation scanning around a pattern comprises means for defining a band of predetermined width extending across the pattern and for defining an area displaced from the band and on the periphery of the pattern, and means for determining when the beam has scanned across the band and area to indicate completion of a scan cycle. The photomultiplier 9 of a flying-spot scanner 5, 9 controls, via AND 47, attenuation 26, 27 of sine and cosine voltages being fed to Y and X integrators 29, 28 providing the vertical and horizontal deflection voltages for the scanner so that the outline of the character to be recognized is followed round. The maximum and minimum vertical deflection voltages during following round are stored at 33, 35 and in order to move to the next character the average of these voltages is compared 31 with the current vertical deflection voltage to control attenuation 26, 27 via AND 39 so that the beam follows an imaginary horizontal boundary to the next character. A voltage divider R11 to R14 specifies the upper and lower limits of a horizontal stop band (which should contain the scan path between characters) to comparators 67, 69 which also receive the vertical deflection voltage to indicate whether the beam is within the stop band at any given time. When the beam has been following round a character for a predetermined time, as indicated by an output at V derived from the photomultiplier 9 being present for this time, and the beam is not in the stop band, a latch 71 is set, thus causing the current vertical and horizontal deflection voltages to be stored at 63, 51, voltage dividers R7 to B10, R3 to R6 supplying predetermined fractions of the stored voltages to comparators 59, 61, 55, 57 to specify the limits of a stop box. The comparators compare these limits with the vertical and horizontal deflection voltages to specify whether the beam is within the stop box at any given time. Setting of the latch 71 enables a latch 81 to be set as soon as the beam is next in the stop band but not in the stop box, and this enables a latch 95 to be set as soon as the beam is next outside both stop band and stop box. Setting of latch 95 allows a latch 99 to be set as soon as the beam is next inside the stop box and this allows a latch 103 to be set as soon as the beam next leaves the stop box. Setting of latch 103 applies signal CCDO to the recognition system 13 to indicate completion of following round the character (e.g. to initiate a character recognition scan, the first scan being for normalization).
Patent GB-307075-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B9/12
Filed: 1929-03-01
Abstract: 307,075. Persoons, J., and Persoons, A. March 2, 1928, [Convention date]. Driving and suspending.-A centrifugal cream separator with a suspended bowl 14 driven by a worm gearing through a hollow spindle 6 is so supported that its suspension rod 13 can be withdrawn from the mechanism in a downward direction. The rod 13 is secured to the hollow spindle 6 by the spring clutch 14<1> and nuts 15, the hollow spindle being made shorter and of a smaller diameter than usual. The rod passes loosely through a sleeve 18 on which are mounted pins 19 carrying the cables 20 of a guide, adjustable by an external screw 21. The opening 22 in the frame 1 is covered by an inverted cup 23 held frictionally on the rod. A rubber ring 25 is arranged between the cup and a washer riveted to the cup and this grips a thickened conical portion of the rod. After removal of the bowl 14 and the nuts 15. the rod 13 can be pulled downwards through the frame, the cup 23 being left on the frame.
Patent GB-1456962-A (GB)
Title: Apparatus for measuring no-x- concentrations
IPC: G01N21/76
Filed: 1975-02-18
Abstract: 1456962 Chemiluminescence apparatus THERMO ELECTRON CORP 18 Feb 1975 [26 Feb 1974] 6835/75 Heading G1A Chemiluminescence apparatus comprises: means for supplying respective continuous flows of a sample gas and of an oxygen-containing reaction gas to a reaction chamber; an electrically energizable ozonator in the path of the reaction gas; means for periodically energizing the ozonator so as to modulate the chemiluminescent reaction in the chamber; a photo-detector; and means for measuring a photo-detector signal component which varies at the same frequency as the ozonator energization. An arrangement comprising a compressor 11, a pressure regulator 17 and a capillary 21 supplies sample gas (e.g. flue gas), filtered at 13, at a constant rate to a vented reaction chamber 25. A similar arrangement 27, 29, 33 supplies dry air at a constant rate to a silent-discharge ozonator 35 and thence to the reaction chamber 25, where the air and the sample gas meet for the first time. An A.C. supply to the ozonator 35 is modulated by a triac Q 1 gated by a free-running multi-vibrator 55 at a frequency of 0.5 Hz Chemiluminescence in the chamber 25 is passed by a filter 47 to a photo-multiplier 45. The A.C. component of the amplified PM signal, extracted by a capacitor Cl, is further amplified at 53 and demodulated by a FET Q2 gated by a signal from the multi-vibrator 55 after a delay in a network R2C2 to allow time for the passage of air from the ozonator 35 into the chamber 25. The resulting uni-directional pulses are smoothed by an integrating amplifier 59 provided with a zero adjuster R7, the D.C. output being applied, via an adjustable-gain amplifier 61, to a meter M1, digital indicator or recorder as a measure of the concentration of e.g. NO x  in the sample gas. The ozonator may alternatively include an U.V. lamp.
Patent GB-680147-A (GB)
Title: Improvements in flexible mountings for internal combustion engines
IPC: B60K5/12
Filed: 1950-03-20
Abstract: 680,147. Mounting engines. GARDNER & SONS, Ltd., L., GARDNER, J. K., and GARDNER J. H. S. March 16, 1951 [March 20, 1950], No. 6836/50. Class 79 (iii) In a flexible mounting for an internal combustion engine in which a torque reaction unit is coupled to the rear of the engine, the rear of the engine and the torque reaction unit are supported and mounted in a bracket i directly bolted to a cross member o secured at its ends to the vehicle chassis frame pin which the engine is to work, so that the torque reaction unit may be adjusted before the engine is installed. The rear end of the engine is supported by a bolt e which passes through a flexible bush in a bracket f secured to the engine and through bushes in bosses g of the bracket i to which also is secured a torque reaction unit j incorporating a double acting hydraulic clamper m and connected to the engine by a bracket k. The forward end of the engine is carried by two links in tension permitting oscillation of the engine about its natural axis. Specifications 483,703 and 680,298 are referred to.
Patent GB-963229-A (GB)
Title: Improvements relating to apparatus for protecting electrical power lines
Inventor: JAMES PHILIP ALFRED
IPC: H02H1/00
Filed: 1962-02-22
Abstract: 963,229. Protective systems. FERRANTI Ltd. Feb. 21, 1963 [Feb. 22, 1962], No. 6877/62. Heading H2K. [Also in Division H4] A protective arrangement for a power line comprises a transmitting stage 14 arranged to apply repetitively to one end of the line 10 radio frequency pulses at intervals exceeding that required for the transmission of a pulse and the receipt of its reflection from the other end of the line, a receiving stage 23 for the radio frequency signal reflected back to the one end, a reference stage 27 for supplying a reference signal, a comparator 26 for comparing the reflected and reference signals and providing an output if the compared signals differ to an extent indicating a fault, and means 32, 13 for disconnecting the line 10 in response to the output. In the arrangement shown, a power surge due to a fault or other condition causes a trigger stage 16 to respond to switch a flipflop 17 to its " set " condition to cause a generator 18 to supply D.C. pulses at spaced intervals. These pulses are applied by way of a delay network 21 to modulate an R.F. transmitter 22 to produce R.F. pulses which are applied to the line 10. If the surge was due to a fault on the line, the signal reflected from the fault and applied by the receiver 23 to the comparator exceeds the signal from the reference stage 27 so that the comparator 26 provides an output which energizes a relay 32 to open a circuit-breaker 13. The transmitting stage 14 continues to supply pulses to the line 10 until the fault is cleared. Then, the reflected signal from the other end of line is no longer sufficient to cause the comparator to produce an output so that the relay 32 restores and the circuit-breaker 13 re-closes. The cessation of the output causes the flip-flop 17 to reset so that no further pulses are transmitted. The reference stage 27 may supply a controllable D.C. signal or may be in the form of a delay-line network which simulates the known characteristics of the line 10 and is supplied from the delay stage 21 with a pulse in synchronism with each pulse applied to the line. A manual control switch 19 may be supplied to enable the condition of the line to be determined at any time. The comparator 26 may. control the operation of a camera 31 which provides a permanent record of the display of a cathode-ray tube 24 (see Division H4). In other arrangements, Figs. 2 and 3 (not shown) the reflected signal is compared with a reference signal resulting from an earlier reflected signal. In these arrangements the reference stage and the comparator are combined into a single stage which includes a cathode-ray tube, the screen of which acts as a charge storage surface, the tube being provided with a capacitative pick-up electrode.
Patent GB-1461697-A (GB)
Title: Toggle fastening mechanism
IPC: E05C19/14
Filed: 1974-02-15
Abstract: 1461697 Toggle fastening mechanism; clamps BLOXWICH LOCK & STAMPING CO Ltd 13 Feb 1975 [15 Feb 1974] 6919/74 Headings E2A and E2B In a toggle fastening mechanism for securing together two relatively movable members 1, 2, an elongate handle 19 is carried by the member 1, for example, has a hook 20 for engagement with an abutment 7 of a keeper 5 which is mounted on the member 2, and is coupled by a throw-over linkage 16 to a bolt 9, the latter being slidably mounted on the member 1 and, having a nose 10, being urged into a recess 8 in the keeper 5 by movement of the handle into a closed position. The handle has a finger-piece 21 and has a slot 22 to fit over an upstanding plate 23 of the member 1. The plate is apertured and may be secured to an abutment 25 by a lock 24. The linkage 16 is pivotally connected to the handle 19 by a pin 18 and to the bolt 9 by a pin 17. The bolt 9 is slidably mounted on rivets 11 which pass through spaced slots 12 in the bolt, and is urged away from the keeper 5 by springs 13 which are located between a lug 14 on the bolt and an abutment 15 on the member 1.  To effect release of the fastening mechanism the finger-piece 21 is used to draw the handle away from the member 1 to break the toggle formed by the handle and the link 16, and the spring-loading of the bolt retracts the bolt from the keeper, and completes the movement of the handle so that it can be disengaged from the keeper.
Patent GB-192630-A (GB)
Title: An improved helmet for racing motor cyclists and like purposes
IPC: A42B3/10
Filed: 1922-03-10
Abstract: 192,630. Grose, H., and Grose, Ltd., J. March 10, 1922. Helmets.-A helmet, for racing motor cyclists, comprises a rigid head-piece built up on a blocked hard-felt shape a by securing to the outside of the shape a number of thicknesses, say five, of stout linen or other fabric well soaked in shellac, a contractible lining k to fit the head, and a pair of strong crossed webs f between the lining and the head-piece, the whole being securely sewn together at the rim of the helmet. An eye-shield p of stiff leather &c. may be detachably secured by press studs. A strong intermediate lining may be substituted for the crossed webs f.
Patent GB-526001-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F01L5/06
Filed: 1939-03-06
Abstract: 526,001. Cooling cylinders. SKODA WORKS, PLZEN. March 6, 1939, No. 7238. Convention date, March 12, 1938. [Class 7 (ii)] The cylinder head of a sleeve-valve engine is cooled by air which passes through aligned ports 3, 5 in the cylinder and head, arranged substantially out of the range of movement of the sleeve-valve 4. The air is directed into the head by a baffle 6<1>, but the direction of flow may be reversed ; alternatively, the flow may be across the head. Cooling ribs 2<1> may be provided on the head.
Patent GB-309022-A (GB)
Title: Improvements in radio-communication systems
IPC: H04L1/02
Filed: 1929-03-06
Abstract: 309,022. Saivre, M. de. April 3, 1928, [Convention date]. Drawings to Specification. Keying systems; atmospherics, eliminating; fading, preventing.-The signal is repeated several times by back-stroke keying, and also several times with ordinary keying from the same or a differential aerial, extraneous blanks or " markings " due to fading or " static " being automatically eliminated, after the messages have been reversed, in a common recording relay. Keying control is effected by a normal current during intervals, with an additonal working current during the signalling periods. Both currents start from the same relay, the working current being used for back-stroke keying and the normal current for direct keying.