baber/WOPTO huggingface dataset:
Patent GB-1046427-A (GB)
Title: Thermoelectric cooling system
IPC: F25B21/02
Filed: 1963-07-02
Abstract: 1,046,427. Thermoelectric cooling systems. BORG-WARNER CORPORATION. July 2, 1963 [July 12, 1962], No. 26227/63. Heading H1K. In a thermoelectric cascade cooling system a current source is connected across the hottest stage and the remaining stages are each supplied with current by being connected between cold junctions of the adjacent hotter stage. The ratio of the length to cross-sectional area ratio of the arms of each stage outside the points of supply to the adjacent cooler stage to that of the arms between these points is selected so that the voltages across all the arms of the stage are substantially the same. For maximum operating efficiency the following relationships should be satisfied: where T a  is the temperature difference for a stage, T ca  and Th the temperatures of the cold and hot junctions respectively of that stage, Tt the total temperature difference across the system, T c  the temperature of the cold end of the system and N the number of stages. A typical system in which the arms of each stage are arranged around a circle is described.
Patent GB-857459-A (GB)
Title: A magnetic field intensity probe using a vibrating coil and a piezoelectric crystal connected therewith
Inventor: HRABAK JAROSLAV
IPC: G01R33/028
Filed: 1957-08-21
Abstract: 857,459. Magnetic tests. TESLA NARODNI PODNIK. Aug. 21, 1957, No. 26384/57. Class 37 To measure the intensity of a magnetic field a coil 1 is fed with an alternating current so that it vibrates in the field. The vibrations are transmitted by a rod 2 mounted in rubber bearings 3 to a pilzo-electric crystal 4 the output voltage of which is a measure of field intensity. The A.C. supply frequency is chosen to be the same as the natural frequency of vibration of the assembly. In the partial construction shown in Fig. 2, coil 1 rod 2 mounted in elastic bearings 3 and the crystal 4 cemented to a carrier 5 are all mounted in a flat carrier 6.
Patent GB-804449-A (GB)
Title: Solenoid-operated control valve for fluids
IPC: F16K31/06
Filed: 1956-08-29
Abstract: 804,449. Valves. COLLINS, J. E. Aug. 29, 1956 [May 22, 1956], No. 26413/56. Class 135. A solenoid-actuated valve controlling the flow of pressure fluid, e.g. to and from a working cylinder, comprises a valve body 10 having a bore 16 formed with recesses 17, 18, 19 communicating respectively with supply, exhaust and cylinder ports and a valve member 25 having an axial bore interconnecting its two ends to pressure balance the member and a transverse port 26 which on movement of the member interconnects the cylinder port with either the supply or exhaust ports. The valve is connected to an armature 30 also having an axial bore so that this also is pressure balanced, the solenoid coil 15 being isolated from the pressure fluid by a sleeve 32, sealing plug 35, end plate 33 and sealing ring 45. The connection between the valve member and the armature comprises a flange 52 on the valve member which is pushed into a recess 50 in the armature and then slid sideways to engage under a lip on the armature. Energization of the coil moves the valve member to the left and a spring 40 moves it to the right.
Patent GB-431137-A (GB)
Title: Improvements in and relating to electro-magnetic interrupters
IPC: H01H51/34
Filed: 1933-09-26
Abstract: 431,137. Electromagnetic interrupters. MALLORY & CO., Inc., P. R., 3029, East Washington Street, Indianapolis, Indiana, U.S.A. Sept. 26, 1933, No. 26465. Convention date, Sept. 27, 1932. [Class 38 (v)] An electromagnetic interrupter unit which may be employed in the circuit of a potential changer comprises an electromagnetic interrupter surrounded by a sound isolating casing and an outer casing of metallic material of good electrical conductivity and high magnetic permeability, means being provided for grounding the outer casing. As shown in Fig. 5, the interrupter casing comprises an outer container 161 of material such as pure iron which is lined with co-operating members 158, 159 of thick sponge rubber in order to form an inner sound isolating enclosure for the electromagnetic interrupter contained therein. The interrupter mechanism is secured at its upper and lower ends to bearing metal spiders 160 of relatively large inertia bearing on the rubber linings 158, 159 which, together with the fairly massive construction of interrupter coil and pressure, prevent the transference of vibrations from the interrupter to the outer casing and surroundings. The interrupter leads are led to prongs 153-155 similar to those of a thermionic valve so that the interrupter in its casing forms a readilydetachable unit, one of such prongs serving to earth the outer container. The leads to these prongs are made of flexible wire. The outer earthed metal container 161, by being made of a metal having good electrical conductivity and high magnetic permeability shields surrounding objects from electromagnetic and electrostatic disturbances set up in the casing. The construction of the interrupter is shown in Fig. 1 and comprises an electromagnet 121, the core 122 of which is clamped in a slot formed in the upstanding portion 117 of the yoke 116. The vibrating blade 130 is formed of uniform section and is provided with a contact 134 an appreciable distance, about midway, from its free end. This contact 134 co-operates with a contact 138 mounted near the end of an auxiliary reed 136 having a much higher natural frequency, the movement of which toward the electromagnet is limited by an adjustable stop 144. The air gap between the vibrating blade 130 and the end 123 of the fixed core is varied by inserting shims 129 between the electromagnet 121 and the yoke portion 117. The interrupter may be used in the high-tension supply system to a radio receiver of the type described in Specification 429,671. Condensers across the contact points, electromagnet and the whole apparatus may, in a modified form, be combined to replace one of the spiders 160 and thus form an inertia means for absorbing mechanical vibrations.
Patent GB-205834-A (GB)
IPC: D06P1/22
Filed: 1923-10-23
Abstract: Cultures of bacteria suitable for use in the reduction of the synthetic indigo vat are obtained by selecting aerobic or anaerobic bacteria contained in substances in which reducing processes caused by bacteria are occurring or have occurred, for example, the contents of the intestines, natural rotting substances such as manure, garden soil, or humus, mud from brackish water, hay, or even natural indigo, and continuing to cultivate those which have a particularly great reducing power. The cultivation is effected by inoculating with one of the bacteria containing substances a sterilized liquid in composition analogous to the fermentation vat, that is, a suspension of synthetic indigo in water together with chalk and a carbohydrate such as fruit-juice, molasses, raw dextrose, etc.; when reduction has commenced the various species of bacteria are further cultivated in the same manner. The cultivation may be effected in the presence of other vat dyestuffs when the preparations are intended for use with these vat dyestuffs. It is advantageous to select those species which are resistant towards heat and drying. The products may be prepared as liquid or dry cultures.
Patent GB-314726-A (GB)
Title: Improvements in or relating to door handles
IPC: E05B3/06
Filed: 1928-09-15
Abstract: 314,726. Beckett, Laycock & Watkinson, Ltd., and Watkinson, A. Sept. 15, 1928. Handles.-A door-handle 13 is formed with a spherical end 12 secured to the spindle 24 and pivoting in a corresponding socket attached to the door, so that it can be employed with a spindle which is oblique to the surface of the door. The socket 11 is formed in a back-plate provided with side and top walls 16, 17, 18 so as to form a protecting housing for the handle. The wall 16 is curved to fit the path of the end of the handle and the other wall 17 may be straight or symmetrical with the wall 16 as shown. In the latter case a second socket 11 may be provided so that the device may be fitted to either a right-handed or a left-handed latch. The handle 13 is shaped as shown so as to leave a fingerspace between it end the plate 10 while the end is protected by the well 16.
Patent GB-1108046-A (GB)
Title: Polymers
IPC: C08B15/00
Filed: 1965-06-23
Abstract: High molecular weight polyanhydroglucose carboxylic esters, particularly cellulose carboxylic esters, are contacted with a depolymerizing system comprising an acid catalyst and a solvent, which system contains insufficient water or other hydroxyl compound to effect any material degree of hydrolysis of the ester, until a polyanhydroglucose ester is obtained of lower molecular weight.  The ester may be a triacetate of cellulose, starch or glycogen and the invention is also applicable to the esters derived from other carboxylic acids having 1 to 4 carbon atoms in the molecule.  In all cases the depolymerized ester is solid and thermoplastic. A cellulose tri-ester may be depolymerized using a boron halide catalyst.  The depolymerization may be carried out in the presence of polyoxyalkylene to produce a polymer containing polyoxyalkylene units.  Sufficient water or other hydroxyl compound may be present during the depolymerization reaction as a complex with the boron halide or upon the completion of the depolymerization reaction to produce about two terminal hydroxyl groups on each molecule of the depolymerized product. The latter may be contacted under anhydrous conditions with a thermoplastic polymer having reactive terminal groups in the presence of an organic bifunctional compound, each functional group of which is reactive with the terminal groups of the said polymer and the depolymerized product, until a linear copolymer is produced containing polymer units derived from the depolymerized product and from the said thermoplastic polymer which are linked by the residual groups of the organic bifunctional compound.  The thermoplastic polymer may be a low molecular weight polyester or polyether and the organic bifunctional compound may be an aryl di-isocyanate.  The copolymer may be a segmented copolymer the segments of which comprise a low molecular weight cellulose triester and a low molecular weight polyester or polyether linked by urethane groups.
Patent GB-405921-A (GB)
Title: Improvements relating to cocks for fluid pressure conduits
IPC: B60T17/04
Filed: 1933-09-27
Abstract: 405,921. Valves for railway-vehicle conduits. WESTINGHOUSE BRAKE & SAXBY SIGNAL CO., Ltd., 82, York Road, King's Cross, London.-(Assignees of Reure, F. L. R.; 7, Rue de la Cerisaie, Paris, and Martin, F. G. ; 7, Rue de la Source, Villeneuve- St.-Georges, Seine-et-Oise, both in France.) Sept. 27, 1933, No. 26597. Convention date, Sept. 28, 1932. [Class 135.] Relates to a cock in a fluid-pressure conduit of a railway vehicle, which, as in French Specification 726,369, is provided with an auxiliary valve opened against spring pressure when the cock is closed, so as to vent to atmosphere the hose connecting the cocks on two adjacent vehicles before the hose is disconnected. As shown, the lever handle 5, in closing the cock to cut off the conduit connected at 3, by means of a lug 17 moves the auxiliary valve member 19 from its seat against the pressure of a spring 21, venting the hose connected at 2 through a chamber 24 and atmosphere port 26.
Patent GB-171830-A (GB)
Title: An improvement relating to bolts and nuts for repairing cisterns and other purposes and to obtain a fixing through a surface where only one side is accessible
IPC: F16L55/16
Filed: 1920-09-17
Abstract: 171,830. Gammon, W. F. Sept. 17, 1920. Branches and mains, connecting ; plates, securing pipes to.-A nut or bolt for use in forming a joint for branch pipes &c. comprises a bolt 1 with a slidable head 4, a washer 6 and a nut 7. The head 4 comprises a slidable pin, controlled by a rubber ring 8 or a spring. In operation, the head is pressed out against the action of the spring until the bolt is of L formation, and is then inserted sidewise in a hole slightly larger in diameter than the bolt, when it springs back into the T formation. A cord &c. 9 is employed to hold the head up to the work while the washer 6 is superimposed on a washer of cork, &c. and the nut 7 screwed home. When used as a pipe joint the bolt 1 and sliding pin 4 have registering holes, which form an axial channel for the passage of fluid, the branch pipe being screwed on to the threads of the bolt.
Patent GB-1395349-A (GB)
Title: Method of manufacturing drive couplings
IPC: F02N15/02
Filed: 1972-06-08
Abstract: 1395349 Making coupling members; welding by pressure SOC DE PARIS ET DU RHONE 8 June 1972 [7 July 1971] 26691/72 Headings B3A and B3R A method of making a freewheel drive coupling member of an I.C. engine starter motor comprising an internally splined sleeve section 2 for connecting the coupling member to the starter motor shaft and a cylindrical section 5 for the freewheel mechanism, having a plain bore 6 separated from the bore of the sleeve 2 by an internal flange 8 defining a bearing for the motor shaft coupling, comprises separately making the sleeve section and cylindrical section and assembling them together after machining the splines. The sleeve section 2 and the cylindrical section 5 are extruded and formed with projecting annular portions 9, 11, which are friction welded together. The splines are machined before assembly of the sections since the flange 8 prevents machining after assembly.
Patent GB-1133342-A (GB)
Title: Improvements in or relating to swaging apparatus
Inventor: LINKISON WILLIAM SIMPSON
IPC: B21C9/00
Filed: 1965-06-23
Abstract: 1,133,342. Rolling tubes. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 15 June, 1966 [23 June, 1965; 14 Oct., 1965], Nos. 26694/65 and 43680/65. Addition to 1,093,661. Heading B3M. Swaging apparatus, for reducing the diameter of a tubular workpiece, includes a ring of balls surrounding the workpiece, a driven outer race for the balls, and means for heating the workpiece as it passes between the balls. The workpiece is heated either by hot oil or by electric resistance heating, while being drawn through the apparatus and supported on a mandrel. The balls are supported by an outer race 3 which is mounted in bearings 7 within a housing 6 and driven by gears 8 and 9. Sleeves 18 and 19 constrain the balls in the race, the sleeve 19 being spring-loaded, and the sleeve 18 being axially adjustable to vary the axial, and hence the radial, positions of the balls. Oil for heating the workpiece is passed through conduits 54, drillings 51 and 50 in the race 3, and bores 52 in a supporting bush 34 for the sleeve 19. The oil is removed via an outlet 56. The workpiece may be preheated either by circulating oil between conduits 57 and 58, or by employing an electric heater 61. In a similar, but simplified, embodiment the workpiece is heated electrically by passing a current between clamps at the ends of the workpiece. The balls 1 are formed of tungsten or a ceramic, and the race 3 is insulated from the casing 6 or also formed of a ceramic. The anvil part of the mandrel which is constructed as a solid part, or as a sleeve bonded to a bar or tube, may be of refractory material.
Patent GB-267349-A (GB)
Abstract: 267,349. fuckert, E. W. April 29, 1926. Chatters for tobacco pipes.- A pipe cleaner 14 is mounted in a flange on the supporting bracket 10 of an electric igniter.
Patent GB-617938-A (GB)
Title: Improvements in or relating to rotary electric switches
IPC: H01H19/64
Filed: 1946-09-05
Abstract: 617,938. Snap-action switches. SWAFFIELD, A. C., and TURNRIGHT CONTROLS, Ltd. Sept. 5, 1946, No. 26747. [Class 38 (v)] A rotary snap-action switch suitable for electric ovens has a spindle 8 on which is rotatable a square-section brass bush carrying a shorter integral insulating hub 10 and central disc member 9. Moving contact assemblies 12, 13 have limited sliding movement on the hub between the disc 9 and insulating discs 14, 15 carried by the bush. Each movable contact assembly comprises a pair of phosphor bronze stampings and a metal spacer ring 34 held together by screws or rivets ; channels 3 in the insulating casing 1 receive fixed blade contacts secured by bolts located in holes 4. The ends of the bush carry a drive plate 17 and a base plate 16, over which they are deformed to secure the whole assembly. The snap-action spring 36 has its ends embracing a part of a shell 24 and a lug 23 on the driveplate 17. An eccentric 22 rigidly mounted on the spindle carries a release plate 19 having shoulders 20 engaging between projections 21 of a detent plate 7 fixed inside an end of the casing 1; a lug on the release plate projects into a slot 18 in the base plate 16. A die-cast cover 2 has a hexagonal recess receiving a brass bush 25 for the spindle 8. A removable operating knob 29 non-rotatably but slidably houses a nut 30, which, during fitting, can be threaded on the end 32 of the spindle 8 before a key 27 on the spindle engages a slot in an indicator plate 28 on the knob 29. A spring 31 located between the nut 30 and the indicator plate 28 draws the key into the slot after the screwing operation is completed.
Patent GB-985994-A (GB)
Title: Production of 7.14-dioxo-5,7,12,14-tetrahydroquinolino-[2,3-b]-acridines
Inventor: SCHUHMACHER ALFRED
IPC: C09B48/00
Filed: 1961-07-25
Abstract: Linear-trans-quinacridones are prepared by reacting a 2,5-dianilino-terephthalic acid, which may be substituted by one or more halogen atoms or methyl or ethyl groups, with benzoyl bromide or benzotrichloride at temperatures between about 140 DEG  and 250 DEG C.  The process is preferably carried out in the presence of inert organic solvents or diluents, such as nitrobenzene, trichlorobenzene, N-methyl-pyrrolidone or naphthalene.  In an example, 2,5-dianilino-terephthalic acid is heated to 175 DEG  C. in nitrobenzene and benzotrichloride is run into the reaction mixture which is heated at 180 DEG  C. for 5 hours, filtered, the residue washed with nitrobenzene, mixed with sodium carbonate, and finally treated with steam to give linear - trans - quinacridone. Specifications 896,803 and 917,830 are referred to.
Patent GB-535184-A (GB)
Title: Improvements in or relating to the construction of thermionic valves
IPC: H01J19/52
Filed: 1939-09-29
Abstract: 535,184. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. and GOODCHILD, F. D. Sept. 29, 1939, No. 26873. [Class 39 (i)] The electrode system of a thermionic valve is carried on a support attached to one end of the envelope and carrying at the other end a guide resting on the envelope, the support being so arranged and constructed that its thermal expansion in operation is considerably less than that of the electrode system. The figure shows an arrangement of supporting rods 3 attached at one end to a collar 6 mounted on the stem 5 of the envelope and carrying at the other a mica disc 8 resting on the envelope. The supports are connected by lavite bridge 4 on which the electrodes are mounted. The supports are arranged at such a distance from the electrodes that they keep relatively cool, and may be made of metal with a low coefficient of expansion, preferably that known under the Registered Trade Mark " Invar," though nickel may suffice.
Patent GB-403493-A (GB)
Title: Improvements in connection with imitation fuel
IPC: F24C7/00
Filed: 1932-09-28
Abstract: 403,493. Imitation fires. BERRY, H. H., 85, Newman Street, Oxford Street, London. Sept. 28, 1932, No. 26962. [Class 126.] A piece of metal or other material 1 or 11 is attached to the interior of a piece of hollow translucent imitation fuel 2, for the purpose of adding rigidity, acting as a screen for light from a lamp 3, or as a reflector. In the form shown, a domeshaped piece of sheetmetal 1 is attached inside the top of the fuel by adhesive, rivets or the like, or by pressing into the material during the moulding of the fuel. Apart from the provision of the metal reinforcement 1<1> and of a reflector 5 at the bottom, the fire, shown in Fig. 3, is similar to that described in Specification 372,540. The inserted piece of metal may be provided with securing means for mounting it, and the fuel to which it is attached, on a lamp socket by means of the usual screwed ring. In a modification, it may comprise two limbs for securing in two pieces of fuel, which it thus holds in spaced relation.
Patent GB-1311184-A (GB)
Title: Convergence correction circuits
IPC: H04N3/233
Filed: 1970-06-04
Abstract: 1311184 Cathode-ray tube circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 4 June 1970 [7 June 1969 7 March 1970] 27012/70 Heading H4T An arrangement for obtaining dynamic convergence in a three-gun CRT for colour television comprises two cores wound on a common core, the first carrying a periodic current and the second a steady current derived from the amplitude of the periodic current so that the net field is stabilized at one of its extreme values. As shown in Fig. 1 parabolic and square-wave signals at scan-frequency are supplied to inputs 1, 2 where the former is differentiated before being combined with the latter. The combined signal (variable in amplitude by 7) is supplied to two identical circuits 11-19, 11<SP>1</SP>-19<SP>1</SP> which control the convergence of red and green beams respectively, potentiometer 9 permitting differential control between the beams. Each arrangement comprises a complementary pair of transistors (11, 12) operating in class B conditions, the output current through coil 17 being the integral of the input (the coil inductance being relatively large) and thus the desired combination of linear (sawtooth) and parabolic waveforms. The current through one of the transistors is smoothed by 15, and by proper choice of the ratio of the turns of coils 13 and 17 can be made to ensure that the resultant total field has a minimum of zero (this occurs at zero deflection when static convergence only will be effective). For a flyback ratio of 20% the turns ratio of coils 13 and 17 should be approximately 2À65 : 1. The operation of the Fig. 1 embodiment is stated to be satisfactory where the parabolic component is large compared to the sawtooth component; where this condition will not necessarily hold modifications to this basic circuit may be made to adjust the current through 13 by providing either an adjustable current supply to transistor 11 not passing through 13 (Figs. 6A, 6B, not shown), by effectively varying resistance 14 (Fig. 8, not shown) or by the use of a third coil (Figs. 7A, 7B, not shown).
Patent GB-1013751-A (GB)
Title: Improvements in or relating to protective systems
Inventor: BENNETT LEONARD MYER
IPC: G08B25/00
Filed: 1963-07-09
Abstract: 1,013,751. Intruder alarm systems. MAWDSLEY'S Ltd. Aug. 24, 1964 [July 9, 1963], Nos. 27062/63, 30530/63 and 33429/63. Heading G4N. In a protective system comprising a number of detectors 1 arranged at possible points of entry to an area 3, authorised access is permitted by means of a control device 7 which de-energizes at least one of the detectors in response to a preselected code signal from a signalling station 2 outside the protected area. As described, two signalling stations 2, 10 are provided, each contributing a part of the code signal. An incorrectly dialled code signal may be cancelled by button 5 and de-energization of the detector by " trial and error " operation of the signalling devices 4, 11 is prevented by a counter 9 which operates alarm 13 after a predetermined number of incorrect signals have been cancelled. If the person knowing the code signal is absent, he can transmit the signal over a telephone or radio circuit by means of a portable signalling device, the received signal being picked up on a loud-speaker associated with signalling device 4, Fig. 2 (not shown).