baber/WOPTO huggingface dataset:
Patent GB-741490-A (GB)
Title: Improvements in or relating to electrical smoothing apparatus
Inventor: HIRSCHMANN FRANZ
IPC: H02M1/40
Filed: 1953-03-19
Abstract: 741,490. Smoothing inductors; supply systems for consumption apparatus. WICKMAN, Ltd. May 6, 1954 [March 19, 1953], No. 7680/53. Classes 38 (2) and 38 (4). An inductor 19 used for smoothing the output of a metal rectifier 13 comprises two windings 20, 21 and magnetic core which includes a magnetic shunt 28 and an associated air gap 29, in Fig. 2, these are 34 and 35 respectively, the winding 20 carrying the unsmoothed output from the rectifier 13 which generates in the limb 24 a flux having two components; one a substantially constant component, the other an alternating component; whilst the winding 21 carries the smoothed output so that the flux generated in the limb 25 is substantially constant, the windings 20, 21 being so arranged that the constant flux in the limb 25 is opposed to the constant component of flux in the limb 24, short-circuited rings 30 being placed on the limb 25 to restrain the alternating component of flux from entering the limb 25. The normal shunt circuit comprises a capacitor 17 and an inductor 15. The shunt limb 28 carries the alternating flux component, the air gap 29 preventing saturation thereof.
Patent GB-624137-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F41/02
Filed: 1947-03-20
Abstract: 624,137. Making transformer cores. BRITISH THOMSON-HOUSTON CO., Ltd. March 20, 1947, No. 7701. Convention date, March 21, 1946. Drawings to Specification. [Class 83 (ii)] [Also in Group XXXV] A rectangular magnetic core is made by winding magnetic strip into a ring round a mandrel, preferably with a paper or other spacer between the turns, cutting straight through the ring at one point, moving round some of the layers so that their gaps are staggered relative to those of other layers, forcing the wire into rectangular shape by driving a wedge between two blocks placed in the core window while a retaining band is fixed round the core, and annealing.
Patent GB-198474-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K3/51
Filed: 1922-03-16
Abstract: 198,474. British Thomson - Houston Co., Ltd., and Taylor, H. W. March 16, 1922. Cores. - A rotating magnet having windings c in longitudinal core slots retained by end rings d of high tensile strength is provided with a circumferential gap j at each end of the core a extending radially inwards at least as far as the bottom of the slots. To improve the path for circulating currents in the portions of the core remote from the end rings, a series of holes r may be provided. The core a may be laminated.
Patent GB-841237-A (GB)
Title: Improvements relating to motor vehicle chassis frames
IPC: B62D21/15
Filed: 1959-03-05
Abstract: 841,237. Motor vehicle frames. DAIMLERBENZ A.G. March 5, 1959 [March 11, 1958], No. 7746/59. Class 79(4). The ends of the longitudinal members 2 of the chassis of a motor vehicle are provided with constructional parts which start from the ends of the members and extend over the wheels in approximately the form of an arc, a series of structural elements being connected to the parts and having strengths of resistance to impact which decrease towards the end of the vehicle. If the vehicle receives an impact in the direction of the arrow 9, Fig. 1, a resilient beading 8, four deformable box-section members 7 an end wall or a radiator grill 6, supporting members 5 and extensions 3a to arcuate members 3 are deformed before any damage occurs to the vehicle chassis and interior 10. A similar construction with the members 5 arranged at a lower level is provided at the rear of the vehicle. The extensions 3a and members 5 are inclined towards the centre line of the vehicle. In Fig. 3, the extensions 3a are straight and connected at points 11 to struts 12 carrying deformable members 7 and a resilient beading 8 which may be provided with horns or a further resilient covering. The deformable members are affected first by collision. Fracture then occurs at 11 due to the leverage h1 and the extensions 3a are bent by the leverage h2. In a further construction, the parts 3 and their extensions 3a are made from sheet metal, serve as mudguards and are connected to the skirts enclosing the boot and engine space.
Patent GB-199140-A (GB)
Title: Improvements in reflectors
IPC: F21V1/00
Filed: 1922-03-16
Abstract: 199,140. United Kingdom Optical Co., Ltd., Culver, E., and Emerson, A. H. March 16, 1922. Glassware with surface designs. - Reflectors for advertising and like purposes consist of a sheet of glass having upon one surface a number of cones b preferably with generating lines at 45‹ to their axes, the cones being arranged to form a design letter or figure.
Patent GB-152627-A (GB)
Title: Improvements in multicylinder motors
IPC: F02F7/00
Filed: 1920-03-16
Abstract: 152,627. Zurovec, W. Oct. 10, 1919. [Convention date] Valves.-Relates to motors of the type comprising a number of cylindrical casings, each containing a plurality of cylinders. In the Figures two casings are shown each comprising cylindrical walls 2, 3 connected by cylindrical pockets 1 in which the cylinders are placed. A wall 5 at each end completes the engine framing, the whole being tied together by bolts 6 to form a cooling jacket. The rotary distributing valve 8 is double walled, the space between the walls forming the inlet for the fluid and the inner space forming the exhaust. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which a water space separates the inner exhaust space of the valve from the inlet. This subject-- matter does not appear in the Specification as. accepted.
Patent GB-915633-A (GB)
Title: Manipulator for the remote handling of articles, particularly fuel elements in a nuclear reactor
IPC: B25J9/10
Filed: 1960-03-04
Abstract: 915,633. Servicing reactors. ELECTRICITE DE FRANCE-SERVICE NATIONAL. March 4, 1960 [July 28, 1959], No. 7829/60. Class 39 (4). Apparatus for removing fuel elements and small particles thereof which have been accidentally dropped into the bottom of a reactor pressure vessel during fuel charging comprises a first arm 2 having pairs of rollers 3, 4 running on rails 5, the two rollers 3 being driven by an electric motor 12 whereby the apparatus may be moved along a duct giving access to the vessel. A second arm 7 is secured by a vertical spindle 6 to the arm 2 and may be moved relatively to the arm 2 by a motor 13. A third arm 9 is secured to the arm 7 by a horizontal spindle 8 and is movable relatively to the arm 7 by a motor 14, jaws 10 in the arm 9 being operable by a motor 15 carried by that arm. A member 16 is mounted for longitudinal movement on the underside of the arm 2 by a motor 11 and carries at its forward end a tray 17 whereby an element grasped by the jaws 10 may be released into the tray when the latter is in its forward position and the tray may then be retracted to permit the grasping of a further element by the jaws. To permit the removal of particles a suction hose extends through the member 16 and the tray 17 is omitted, the hose nozzle being held in the jaws 10. A construction of the apparatus is described in detail with reference to Figs. 2-12 (not shown).
Patent GB-180459-A (GB)
Title: Improvements in rubber covered paving blocks
IPC: E01C5/22
Filed: 1921-03-12
Abstract: 180,459. Waller, J. H. de W. March 12, 1921. Composite blocks. - A concrete paving-block A has its top face covered with a pre. moulded rubber wear. ing-surface B, which is formed with extensions B<1> down the vertical sides of the block and with perforated fins D depending from its upper surface. The extensions B<1> are provided with one or more internal projections C, which may be perforated.
Patent GB-1041305-A (GB)
Title: Can wrapper and blank therefor
IPC: B65D71/00
Filed: 1964-02-25
Abstract: 1,041,305. Cartons; can wrappers. MEAD CORPORATION. Feb. 25, 1964 [Aug. 9, 1963], No. 7868/64. Heading B8C. A wrapper, for packaging articles with recessed ends, e.g. chimed cans, forms an open - ended tubular structure from which retaining tabs, each having an integral web panel formed at one end of their hinges, are struck and folded inwards through 180 degrees to engage the ends of the articles to retain them within the tube. The wrapper, Fig. 5 (not shown), is folded around the cans and secured by interengaging tongues and slots 14-17. The retaining tabs 37-44 are cut in the top and bottom panels and comprise a main portion 40A, Fig. 4, foldable along the line 45, and a web 46 defined by folds 47, 48. When the main portion is folded through 180 degrees and under the wall, the web lies normal to the wall and engages the rim of the can to prevent its easy removal, Fig. 3 (not shown). Tabs 29-32 fold inwards and are doubled over to engage the chime, Fig. 2 (not shown), while tabs 19-21 extend between the two rows of cans from beneath. A tab 56 is cut from the wall 7, its hinge line 57 being above the hinge line 22 of the tab 19, so that when folded upwards it provides a slot for engaging can chimes. The end of the top wall 1 is longer than, and shaped complementary to the end of the side wall, to facilitate staggered cutting of blanks without wastage and to strengthen the top wall. Finger gripping apertures 35, 36 are provided.
Patent GB-471934-A (GB)
Title: Improvements in or relating to vacuum servo mechanism for operating vehicle brakes
IPC: B60T13/24
Filed: 1936-03-16
Abstract: 471,934. Fluid - pressure brakes. CLAYTON DEWANDRE CO., Ltd., and EDGE, S. H. March 16, 1936, No. 7893. [Class 103 (i)] [Also in Group XXIX] Relates to servo mechanism for operating vehicle brakes, of the type in which the brakes are applied by manual effort assisted by a pneumatic power device, the action of which is controlled by a regulating-valve by means of which the effort exerted by the power device is adjusted according to the manual effort. According to the invention a lever arm d is coupled to the brakes, power device, and control pedal or lever by pivoted links g, 2, c, directly connected to the lever arm which is supported through a lost-motion connection, such as a slot f, by a fixed fulcrum e. In the construction shown, opening of the regulating valve m effects actuation of two pistons y, z in a vacuum cylinder w, one piston z operating directly the rear wheel brake mechanism and the other y being arranged to assist the operation of the front-wheel brake mechanism. The outer end j of a valve-operating member k slidable in a housing l mounted on the cylinder w is spring- pressed against the end i of the arm d, while the valve m is constituted by the closed end of an apertured sleeve n slidable in a chamber q adapted to be connected to a source of suction through an opening r. In operation, initial depression of the pedal rocks the arm d about its point of connection h with the rod g moving the end i relatively to the pivot e thus pushing the member k to open the valve m. As soon as the member k engages the valve communication between the cylinder wand atmosphere through passage v, interior of member k, and ports 5, 6, is closed, and on opening of the valve, the cylinder is connected to the source of suction through the passage v, the reduced end u of the member k, apertures o in the sleeve n, and the opening r. Thus, while the arm d rocks about pivot h the rear brake mechanism is being operated by the piston z while the suction on the piston y tends only to react against the pedal pressure. When the maximum vacuum action has been effected; the arm d rotates about the pivot e and this action is assisted by the suction on the piston y, further assisted by atmospheric pressure acting on the piston y through a port 7 in the cylinder. The leverages of the system may be so chosen that the power assistance applied to the front brakes is practically negligible.
Patent GB-526275-A (GB)
Title: Improvements in or relating to electric cables for indicating temperature changes
IPC: H01B7/32
Filed: 1939-03-11
Abstract: 526,275. Thermal switches. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and DUNSHEATH, P. March 11, 1939, No. 7905. [Class 38 (v)] A temperature - indicating cable suitable for fire-alarm systems comprises a zinc wire 1 separated by thermoplastic insulation 2 from galvanized steel wires 3 over which is lapped galvanized steel tape A, the whole being covered by self-vulcanizing rubber tape on which is wrapped a single cotton tape and a compounded hessian tape (not shown). The insulation 2 preferably comprises a mixture of 25 per cent. gutta percha and 5 per cent. of a refined grade of ozokerite wax softening above 80'C., but other materials are (a) a mixture of unvulcanized rubber with gutta percha and (b) synthetic organic plastics. The insulation softens at a given temperature and the greater expansion of the zinc wire causes it to buckle and contact with the wires 3. Numerical data are given in the Specification.
Patent GB-869688-A (GB)
Title: Safety locking lever and latch assembly for a permutation padlock
IPC: E05B37/10
Filed: 1959-03-09
Abstract: 869,688. Padlocks. MASTER LOCK CO. March 9, 1959, No. 8042/59. Class 44. A lock comprises a shackle 24, a locking lever 14 pivotally mounted in a body 12 and a cylindrical bore 15 in the lever, the lever being manually operable and having a latch pin 28 situated in the bore 15. Release of the shackle 24 is effected by rotating disc 18 to such a position that finger portion 22 is able to rotate into slot 23. The shape of the shackle pin 28 prevents retraction of the pin into the bore when a shouldered portion 29 contacts a face 31 on the lever 14, and also prevents retraction by means of a shim introduced between the shackle leg and the body 12 due to a recess 33 in the head of the latch pin.
Patent GB-888468-A (GB)
Title: Improvements in or relating to electro-mechanical transducers
IPC: H04R17/08
Filed: 1958-03-14
Abstract: 888,468. Recording and reproducing. TELEFUNKEN G.m.b.H. March 14, 1958 [March 14, 1957], No. 8176/58. Addition to 834,572. Class 40 (4). Apparatus for recording and reproducing from a stereophonic gramophone record of the type described and claimed in the parent Specification is modified by the provision of grooves 25-28 in a soft plastic bar in the mechanism between the two transducing systems.
Patent GB-859391-A (GB)
Title: New aliphatic organic diphosphines
Inventor: CHATT JOSEPH
IPC: C07F9/50
Filed: 1958-03-14
Abstract: The invention comprises bis (dialkylphosphine) acetylenes and 1 : 2-bis (dialkylphosphino)-ethylenes having respectively the general formulae: (R) (R1) P-C­C-P(R) (R1) and (R) (R1) P-CH= CH-P (R) (R1) in which R and R1 are alkyl groups and the group R may be the same as R1.  The acetylene compounds may be obtained by reacting a dialkyl halophosphine with an acetylene metallo-compound, e.g. acetylene dimagnesium bromide, sodium acetylide, or calcium acetylide.  The 1 : 2-bis (dialkylphosphino) ethylenes may be obtained by partially hydrogenating the corresponding acetylene compounds, in the presence of a nickel hydrogenation catalyst e.g. Raney nickel. The acetylene compounds may also be fully hydrogenated, e.g. in the presence of a nickel hydrogenation catalyst to form 1 : 2-bis (dialkyl phosphino) ethanes.  Examples are given for the production of bis (diethylphosphino) acetylene from acetylene dimagnesium bromide and diethylchlorophosphine and for its partial and complete hydrogenation to form the corresponding ethylene and ethane compounds.  The 1, 2-bis (dialkylphosphino) ethanes may be oxidised to the corresponding diphosphine oxides which have the property of co-ordinating with metals and may then be used for extracting metals from solutions of their salts and for purifying powdered metals.  Acetylene dimagnesium bromide may be obtained by reacting acetylene with ethyl magnesium bromide in an inert solvent.
Patent GB-569389-A (GB)
Title: Ventilator
IPC: E06B7/08
Filed: 1943-05-24
Abstract: 569,389. Ventilators ; bricks; roller blinds. BROAD & CO., Ltd., and RANKIN, A. M. May 24, 1943, Nos. 8243 and 11114. Addition to 547,817. [Classes 20 (iii), 87 (i) and 137] [Also in Group V] A moulded or cast ventilator of earthenware, cement, metal, glass, rubber, or other plastic material comprises two units 1, 2 fitted back to back, each having one or more cells containing a partition, V-shaped in cross-section, and comprising members 3a, 4a or 3b, 4b, of which the spaced ends are located at or near one end and the apex lies at or near the middle of the other end of the cell. An opening near the cell wall is provided in the partition on each side of a plane at right-angles to the apex and passing centrally through it the openings also lying on opposite sides of a plane at right-angles to the first plane and passing through the apex. Cooperating projections and recesses 5, 6, 9, 10 may be provided at the unit edges or one unit may slide across the other to increase ventilation and permit the passage of light. The bottom 16 of a cell may slope downwardly to direct collected moisture outwardly. Other forms may be circular, hexagonal or octagonal in cross-section ; a number may be hinged together to enable them to be rolled up or collapsed concertina fashion. Rubber or other flexible forms may be incorporated in a roller blind.
Patent GB-764751-A (GB)
Title: Improvements in and relating to a side-delivery rake
Inventor: DIK PETER
IPC: A01D78/00
Filed: 1955-03-22
Abstract: 764,751. Side-delivery rakes. BAYERISCHE PFLUGFABRIK AKT.-GES. March 22, 1955, No. 8258/55. Class 6(3). A side-delivery rake comprises a frame 1 carrying ground-wheels 4 and rake-wheels 13, the rake-wheels being arranged in transverse echelon formation and each rake-wheel being urged into contact with the periphery of a ground-wheel so as to be rotated thereby. The frame comprises a pair of tubes 1 bolted coaxially together by flanges 3. The groundwheels are castors the forks 5 of which are journalled on the tubes 1 and are resiliently urged downwardly by springs 6. The rakewheels are journalled on levers 12 pivoted at 11 on the forks 5 and urged downwardly by springs 14. The frame is secured to an arm 7 pivoted to bracket 8 mounted on a castor 9 attached to a tow-bar 10. The rake wheels may be raised and lowered by adjustment of a hand-wheel 20 and screw connecting the members 7 and 8. For swath-turning, one frame-beam may be moved into the dotted position 1<SP>1</SP> and maintained parallel to the other by links 18<SP>1</SP>
Patent GB-886581-A (GB)
Title: Convergent-divergent jet propulsion nozzle assembly
IPC: F02K1/12
Filed: 1960-03-09
Abstract: 886,581. Jet propulsion nozzles. ORENDA ENGINES Ltd. March 9, 1960 [May 11, 1959], No. 8294/60. Class 110 (3). A convergent-divergent jet propulsion nozzle comprises a first duct defined by an imperforate wall converging to a throat at its downstream end, a second duct in communication with, and downstream of, the throat and defined by a perforate wall fixed relative to the first duct, the perforations in the wall being arranged in a plurality of series, each series extending circumferentially of the second duct and being spaced axially from the other series, a chamber surrounding the perforate wall and actuating means to control inlet means regulating the supply of secondary gas to the chamber and subsequently the perforations. The propulsion nozzle, Fig. 2, comprises a convergent nozzle 17, formed by a plurality of longitudinally extending flaps 19 hinged at their upstream ends. The flaps 19 are actuated by hydraulic actuators 28 operating through a ring 22, rollers 23 and cams 21. The ring 22 runs on guides 25 which also carry a ring 32 actuated by hydraulic actuators 34. The ring 32 is attached by links 46 to flaps 40 hinged at their downstream ends to the fixed nozzle structure. Each of the flaps 40 is double-walled and provided with sealing strips 43. A divergent duct 18 having a perforate wall 37 is fixed relative to the tailpipe 16. The perforations 38 are circumferentially arranged in rows or series and each series is spaced axially of the divergent duct from the other series. The flaps 40 may be controlled manually or automatically in accordance with the nozzle pressure ratio. The arrangement is stated to prevent over-expansion of the propelling gases. In a modification, Fig. 3 (not shown), the divergent duct 18 is formed of three imperforate frustoconical portions which overlap one another, corrugated spacers being welded between the overlapping portions.
Patent GB-552875-A (GB)
Title: Measuring microscope
IPC: G02B21/00
Filed: 1942-06-17
Abstract: 552,875. Optical gauging-apparatus. AKT.- GES FUR MECHANISCH-OPTISCHE ERFINDUNGEN. June 17, 1942, No. 8322. Convention date, July 15, 1941. [Class 106 (ii)] [Also in Group XX] Means for comparing the profile and measurements of an object and of an enlarged standard comprises a microscope having means for viewing them simultaneously. As shown, the object 2 on a table 1 carried by crossed slides is illuminated by a lamp 3, condenser 4, reflector 6, and collimating lens 7. The standard consists of an enlarged drawing 16 held against a glass plate 13 and lighted by lamps 14 and a diffusing plate 15. A reflector 17, a reversing prism, and an objective 19 project an image of the drawing into the focal plan of an eyepiece 11, and an objective 8 produces an image of the object 2 in this plane ; a transmitting and reflecting prism 10 unites 'the image beams. A graticule 22 for measuring angles &c. may be provided in the image plane, and adjustable diaphragms 5, 18, and contrasting or complementary colour filters 20, 21 'may be provided in the beams.
Patent GB-609589-A (GB)
Title: Improvements in or relating to fluid blast electric circuit interrupters
IPC: H01H33/70
Filed: 1946-03-18
Abstract: 609,589. Liquid-break switches. WESTING- HOUSE ELECTRIC -INTERNATIONAL CO. March 18, 1946, No. 8322. Convention date, March 23, 1945. [Class 38 (v)] A circuit-breaker has a pair of contacts separable under liquid, the spaces 18, 19 above which contain gas normally maintained at the same high pressure by a valve 22. The breaker is opened by simultaneously energizing coils 9, 28 the first of which trips a latch 8, and the second of which actuates the valve 22, whereby the part 18 of the tank 1 is connected to atmosphere through a pressure-limiting valve 24. Since the gas pressure in ports 18, 19 is now different, liquid flows from the latter to the former, acting on the movable contact 7 to open it and causing a blast of liquid through an orifice 32. When the pressure in the tank drops to a predetermined value, a valve 26 automatically opens to allow gas to bubble through the liquid, some of the gas dissolving therein. In a modification, Fig. 2 (not shown), a piston in the port 19 limits the liquid displacement and operates the movable contact 7 through a linkage similar to that of Fig. 5, the contact being reclosed by a spring attached to the linkage. In a further modification, Fig. 5, a differential piston 38 is connected to a movable U-shaped contact 43, the' differential volume 37 being connected to atmosphere to allow the piston to move downwardly by a solenoidoperated valve 34. The orifice 32 is preferably shaped as shown in Fig. 8, wherein the angle # is preferably between 30 and 45 degrees and the distance " S," between the top of the opened contact 58 and the lower edge 59 of the orifice, is preferably one-fourth of the orifice diameter. The theory underlying the choice of these dimensions is set out in the Specification with reference to curves, Figs. 10-12 (not shown). The compressed gas may be hydrogen, steam, carbon dioxide, oxygen, or helium and the liquid may be oil or carbon tetrachloride.