baber/WOPTO huggingface dataset:
Patent GB-1485098-A (GB)
Title: Tool for enlarging the ends of pipes
IPC: B21D39/20
Filed: 1976-01-15
Abstract: 1485098 Tube expanders; stamping; punching ROTHENBERGER GmbH & CO WERKZEUGEMASCHINEN KG 15 Jan 1976 [15 March 1975] 01655/76 Headings B3Q B3J and B3W In a tube expander comprising segments 29, Fig. 1, expanded by a tapering mandrel 14 operated by a cam 18, stroke of the mandrel is increased by providing several recesses in which a pivot 20 for the ram may lodge consecutively. The recesses may be staggered, Fig. 1, or disposed in an oblique row, Fig. 3 (not shown). A bronze bush 34 may surround the mandrel 14 and receive one or more light return springs 37 for the mandrel. At least one stiff return spring 40 is located above springs 37. A spacer 61, Fig. 5, facilitates the use of smaller segments 29 which are operated only by the leading part of the mandrel. A pyramidal mandrel may be used in which the end 15a of square, hexagonal or octagonal cross-section, may be pivoted to the rest of the mandrel. To convert the tool for punching or embossing, the head 25 carrying the expansible jaws 29 is replaced by an adapter 48, Fig. 4, carrying a punch 55 and a die 57. A plunger 49 carrying the punch 55 is recessed 50 to receive the end of the mandrel 14.
Patent GB-1247812-A (GB)
Title: Improvements in pipe couplings
Inventor: MUIZELAAR GUISBERT
IPC: F16L29/04
Filed: 1969-01-10
Abstract: 1,247,812. Pipe couplings. HIGH TEMPERATURE ENGS. Ltd. 7 Jan., 1970 [10 Jan., 1969], No. 1706/69. Heading F2G. To achieve a connection of two pipe coupling bodies 11, 42, a sleeve 29, rotatably mounted on the first body 11, is screwed on to an externally screw-threaded portion 44 of the second body 42 and the leading edge 32 of the sleeve 29 engages at least one ball, thus forcing a locking ring 57 to slide rightwards against the action of a spring 59 until the ball falls into a recess 66 of the second body, whereupon the leading edge 32 passes over the ball and the spring 59 urges the locking ring leftwards to co-operate with an inclined wall 67 of the recess 66 in forcing the ball 63 into a groove 33 of the sleeve, thus locking the coupling as shown. A ring 65 may be employed to retain the ball or balls 63 in the uncoupled position. The coupling shown incorporates a valve operated as follows: a hollow plug 45 closed by a wall 48 is pushed back inside the second body 42 against a spring 51 by an endwall 12 of the first body 11, thus separating the plug from a cover sleeve 53 to open ports 49 located in the tubular wall of the plug; simultaneously, a retainer 54 which may be integral with the cover sleeve 53 pushes back a valve sleeve 19 against the action of a spring 21 to open ports 18 formed in the tubular wall of the first body 11 and a passage is formed between the ports 18, 49 as illustrated.
Patent GB-570740-A (GB)
Title: Improvements in and relating to postal packets
IPC: B42D15/08
Filed: 1944-02-01
Abstract: 570,740. Postal account sheets. WADE, W. L. Feb. 1, 1944, No. 1826. [Class 146 (ii)] An account-sheet adapted to be folded on itself in a series of parallel folds to form an open-ended postal packet for the dual purposes of sending out firstly an account and subsequently the corresponding receipt, has the final folding-section 1 only, formed with one or more flaps or tongues 7 adapted to be tucked into the open ends of the folded packet or into slits 8 in the folding section 3 next but one to the final folding-section, and sections 1 and 2 each provided, by embossing or perforating, with a location b and a respectively for a postage stamp. The rear face of either section 1 or section 2 may be carbon-coated so that by folding along the line 5, the address of the person to which the account and receipt are to be forwarded is duplicated when written on one of the sections. For the first sending the sheet is folded with the addressed face of section 2 exposed, and for sending the receipt the folding is performed in a reverse direction so that the addressed face of section 1 is exposed. The tongues engaging slits may be provided on the upper edge or the side edges of section 1 or may be formed by slits in the section itself. The embossing or perforating of the stamp locations may be effected in one operation with the printing of the name of the firm and the account columns.
Patent GB-625081-A (GB)
Title: Improvements in or relating to screw thread-cutting apparatus
IPC: B23G5/08
Filed: 1947-01-20
Abstract: 625,081. Screwing. SOC. ANON. DES ACIERIES CI-DEVANT G. FISCHER. Jan. 20, 1947, No. 1836. Convention date, Jan. 25, 1946. [Class 83 (iii)] A screw thread cutting apparatus with rotatable die head, the spindle of which has mounted thereon a screwed sleeve guided by a nut, is characterised in that a ring-gear 4 is keyed to the die head spindle 3 so as to be rotatable therewith and to allow of axial displacement, pinions 19, 22, of different diameter meshing with the ring-gear so that the spindle 3 and ring-gear can be rotated manually either directly or from one of the pinion spindles. The nut 9 is secured in the axial direction by means of a pawl 12 pivoted on the casing 1, the pawl engaging a groove in the nut flange 10 to prevent the nut from rotating. In a modification, the die-head spindle comprises three portions secured together by means of T-shaped heads and recesses, the front portion carrying the die head, the rear portion the ring gear, and the intermediate portion the screwed sleeve with screwed-on nut, the latter being held in a clamp comprising two portions pivoted together so that when the clamp is released the intermediate portion of the spindle can be removed and replaced. Die-heads.-The cam surfaces 55 of a cam disc 54 engage grooves in radially-slidable die-head jaws 56, the socket 53 of the disc 54 having a slot 57 so that the disc can be adjusted circumferentially of the die-head, the disc being secured in the adjusted position by a screw 58.
Patent GB-633337-A (GB)
Title: Improvements in or relating to telephone receivers
IPC: H04R1/22
Filed: 1946-01-18
Abstract: 633,337. Diaphragms. TELEFONAKTIE. BOLAGET L. M. ERICSSON. Jan. 18, 1946, No. 1852. Convention date, Jan. 22, 1945. Drawings to Specification. [Class 40 (iv)] In a telephone receiver a stiff plate divides the space between the diaphragm and the earcap into two chambers and is so constructed as to damp the passage of air from between the two chambers. This damping smooths out the peak in the response curve due to the resonance of the diaphragm and merges the resonances peaks of the inner and outer chambers, when closed by an average ear, into a single elongated flattened peak, thereby extending the frequency response of the instrument. To this end the resonant frequencies of the inner and outer chambers are arranged to be fairly close to each other, the former frequency being higher than the latter. The damping may be effected either by apertures in the plate covered with silk, or by virtue of the closeness of the plate to the diaphragm, the apertures being then left uncovered.
Patent GB-908281-A (GB)
Title: Improvements in or relating to the manufacture of copolymers of vinyl compounds
Inventor: PIGGOTT KENNETH ELLIOT
IPC: C08F283/00
Filed: 1958-01-20
Abstract: Copolymers of vinyl compounds and a polymeric derivative of a fatty acid or a mixture of fatty acids which is made by reacting a saturated or unsaturated aliphatic acid or anhydride in the presence of a catalyst at a temperature of between 180 DEG -300 DEG C., and preferably under reduced pressure, are made by heating together the vinyl compound which comprises a vinyl aromatic compound, and the polymeric derivative, preferably in the presence of a catalyst.  The polymeric derivatives may be prepared as described in Specifications 827,361 and 844,620.  The essential vinyl aromatic compound may be vinyl toluene, alpha methyl styrene, or vinyl naphthalene.  Other vinyl compounds which may be present are acrylic and methacrylic acid, their esters, or their nitriles, e.g. acrylonitrile.  The polymerization mix may include a drying oil and/or a drying oil-modified alkyd resin.  The polymerization may be effected in bulk or in the presence of a solvent such as white spirits.  The polymerization may be a peroxy or azo-type compound.
Patent GB-230592-A (GB)
Title: Improvements in or relating to apparatus for measuring electric currents
IPC: G01R15/14
Filed: 1924-01-23
Abstract: 230,592. Sachsenwerk, Licht - und Kraft-Akt.-Ges., and Fritz, J. Jan. 23, 1924. Current meters.-An ammeter a is connected in series with a current transformer b consisting of a wound iron core slipped over a tubular high-tension conductor c, the connecting wire d passing through the tubular conductor c. The other end of the transformer winding and also the other ammeter terminal are connected to the high tension line. In a lowcurrent circuit, where the mechanical strength of the hightension conductor is insufficient, the ammeter and transformer may be supported from a wall &c. by a common insulator, in order to relieve the high-tension conductor of their weight.
Patent GB-1213001-A (GB)
Title: Improvements in or relating to straddle vehicles for transporting containers
Inventor: LYSTER JOHN FITZGERALD
IPC: B60P1/02
Filed: 1967-01-13
Abstract: 1,213,001. Frames; suspensions; steering; driving arrangements; vehicle couplings. COW & GATE Ltd. 11 Jan., 1968 [13 Jan., 1967], No. 1899/67. Headings B7D, B7H and B7T. [Also in Divisions B8 and E2] A container carrying road vehicle comprises a chassis 10 of tubular beams 11 connecting a tractor 65 and trailing swing arm assemblies 25. Transverse beams 16, 17 are fastenable to corner castings 76 of a standard container 21 and the chassis is raisable and lowerable relative to the wheels by jacks 60, 73. To load a container the tractor 65 and assemblies 25 which are also drivable are turned to a transverse position and driven sideways to position the chassis then raised over the container 21. The chassis is lowered, secured to the container, and then raised to the transport position shown. With the tractor 65 and assemblies 25 returned into line with the container the vehicle can transport the container over roads. The suspension of the swing arm assemblies 25 comprises a bolster 28 pivotally connected by tubes 29 to lugs 30 on connecting tubes at the rear end of the chassis beams 11. The axle unit 26, Fig. 3, have platforms 40 connected by rotationally interfitted tubes 41, 43 to the bolster 28. A rod 48 extends through thrust pads 44, 47 being keyed to the latter and can be turned by a steering motor controlled from the tractor 65 to turn the wheels 27 into a transverse position. The wheels may be driven by a motor 53 having a pinion 55 which can be engaged with a ring gear 56 under the control of a solenoid 58. In a modification the assemblies are adapted to swing outwards to allow the trailer to be reversed over a container. The connection of the chassis to the tractor 65 is by a ball and socket joint 68. Locking units, Figs. 9, 10, for securing the beams 16, 17 to the container comprises a tray 86 mounted on the beams and provided with clamp blocks 88, 89 which are passed through openings in the container corner castings 76. On actuation of a rod 100 a wedge 90 is forced between the blocks 88, 89 to separate the surfaces 94 so that they underlie the hole in the casting when the shanks 92 are forced into engagement with the respective holes, Fig. 10. A keep rod 101 mounted in the side walls of the tray 86 retains the wedge 90 raised.
Patent GB-119384-A (GB)
Title: Improvements in Self-starters for Internal Combustion Engines.
IPC: F02N15/06
Filed: 1918-02-02
Abstract: 119,384. Electric & Ordnance Accessories Co., and Wood, F. Feb. 2, 1918. Turning-gear.-In an engine starter comprising an internally threaded pinion mounted on a motordriven screw shaft, a buffer device cushions the movement of the pinion and gives a solid drive when the pinion meshes fully with the fly-wheel. The device comprises a sliding member 9 for engagement by the pinion 6, a fixed member 12 forming an abutment for the part 8 of the member 9, and an interposed spring 13. The members 9, '12 are preferably formed as a dash-pot piston and cylinder respectively, and the buffer spring 13 may be replaced by a light helical spring.
Patent GB-1067571-A (GB)
Title: Improvements relating to function generators
Inventor: PERCIVAL WILLIAM SPENCER
IPC: G06G7/28
Filed: 1963-01-16
Abstract: 1,067,571. Electric analogue calculating. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 16, 1964 [Jan. 16, 1963], No. 1925/63. Heading G4G. A function generator comprises input terminals 1, 2 and output terminals 11, 14 between which are connected means for producing a number of linear transfer functions, and a number of non-linear devices 3, 4 for determining which transfer function is selected. The means for producing the transfer functions comprises an amplifier 10 and a number of potentiometers, one resistor of each potentiometer being connected to the output of the amplifier. Assume diode 4 is conducting, then the slope of the transfer function is determined by resistors 9, 13 and its value with zero input at terminal 1 is determined by the bias at terminal 7 and the resistor 9. When diode 3 conducts the transfer function is similarly determined by network 5, 8, 12, the two functions having the same value at the change-over point of the diodes. Transistors may be used in place of diodes as the non-linear devices, and a cycle voltage may be applied to them to provide a fairing between the two functions. The amplifier may comprise valves or transistors.
Patent GB-777334-A (GB)
Title: Improvements in or relating to drawing boards and straight edges therefor
Inventor: MUDDIMAN PETER VEREKER
IPC: B43L13/04
Filed: 1954-01-22
Abstract: 777,334. Drawing boards. HOLMES BROS. (LONDON), Ltd. April 21, 1955 [Jan. 22, 1954], No. 1988/54. Class 11. A drawing board 1 is provided with a straight edge 2 which is guided by wires 3, 4 which extend perpendicularly to the straight edge and parallel to each side of the drawing board, the straight edge being provided with a roller 11 at each end to seal up the wire from one side of the straight edge when the straight edge is moved and at the same time to conceal wire to the opposite side of the straight edge and wherein each roller is formed with an external screwthread 15 so that the wires may be sealed and unsealed in an orderly manner. The straight edge is formed with bearing bushes 9 for supporting a rod 10 in which the rollers 11 are mounted. Each roller has secured thereto the inner ends of the wires 3 and 4 which are wound on the roller in opposite senses and are secured to opposite ends thereof by screws 13 and 14 respectively. The wires 3 are secured to bracket members 17 at the upper corners of the board 1 and the wires 4 are secured to the periphery of wheels 20 which may be rotated for tensioning the wire. Each roller may be formed of two cylinders having different radii, the smaller being employed for sealing the wires 3, the wires 4 being wound round the cylinders of larger radius and secured to the bottom of the board through spiral springs.
Patent GB-110091-A (GB)
Title: Improvements in the Ball Valve Spindle for Vacuum Brakes.
Inventor: WHITE THOMAS ARTHUR
IPC: B60T13/46
Filed: 1917-02-09
Abstract: 110,091. White, T. A. Feb. 9, 1917. Fluid-pressure. - Relates to ball-valves for vacuum brakes, of the kind shown in Fig. 1, and consists in substituting a spindle of cast iron or other metal cheaper than brass and constructed as shown in Fig. 2. The end F instead of being forked as in Fig. 1 is made solid and the operating lever is sprung on to it. A plain hole guarded by a pin C is provided for the ball. The spigot A is tapered to give greater strength and to facilitate insertion and operation of the spindle. A pin D engages a groove in the cap E to prevent twisting of the spindle. Fig. 4 shows a hand-tool for retaining the ball in its cage during insertion of the spindle.
Patent GB-747789-A (GB)
Title: Television receiver
IPC: H04N5/53
Filed: 1954-01-22
Abstract: 747,789. Automatic gain control. STANDARD TELEPHONES & CABLES, Ltd. 'Jan. 22, 1954 [Jan. 29, 1953], No. 2029/54. Class 40 (5).  In a television receiver provided with keyed automatic gain control (A.G.C.) means are provided to mute the audio channel during the warm-up period, when the keying pulses derived from the line time-base are non- coincident with the line synchronizing pulses derived from the video signal. A receiver of the intercarrier sound type comprises R.F. and I.F. stages 2, Fig. 1, video detector 3 and a video amplifier 4 feeding a picture tube 6 and also intercarrier sound via a transformer 5 to a sound channel. The sound channel comprises I.F. amplifier 11, a frequency discriminator 12 and audio amplifier 13. The A.G.C. circuit comprises a circuit 15 coupled to the output of the video amplifier 4 and deriving gating pulses from the line synchronizing generator 16. According to the invention, differentiated keying pulses from the circuit 15 are combined, in circuit 1, with separated synchronizing pulses from synchronizing separator 21 to provide a voltage which mutes the audio amplifier 13 in the absence of synchronism. The combining circuit 1 comprises resistor 27, 28, Fig. 2, over which the negative-going synchronizing pulses and positive-going keying pulses respectively are passed to a rectifier comprising blocking condenser 30, diode 23, load resistor 29 and filter network 24, 25, whereby the muting voltage is applied to an audio valve 13.
Patent GB-384465-A (GB)
Title: Improvements in or relating to the joining of pipes or tubes
IPC: B21C37/28
Filed: 1932-01-22
Abstract: 384,465. Making pipe bends. SULZER FR’RES SOC. ANON., Winterthur, Switzerland. Jan. 22, 1932, No. 2044. Convention date, May 15, 1931. [Classes 83 (ii) and 83 (iv).] Pipe-end closing ; forging dies.-A pipe bend is made by slitting and outwardly splaying the ends of two pipes and welding the splayed walls together, the opening at the end being then closed by means of a device comprising a member 5, Fig. 6, with a domed interior of circular section and a member 6 with an elongated opening 13. By reciprocating this die the ends of the opening of the pipe are gradually forced in at the points 7, while the consequent bulging at the points 9 is reduced by the walls of the opening 13 of the member 6. The opening is finally secured by welding to produce the bend shown in Fig. 8.
Patent GB-632502-A (GB)
Title: Improvements in electrical plug and socket connectors
IPC: H01R13/502
Filed: 1946-07-10
Abstract: 632,502. Two-part couplings. BENDIX AVIATION CORPORATION. July 10, 1946, No. 20651. Convention date, Aug. 18, 1945. [Class 38 (i)] In a multiple contact plug and socket connector comprising shielding shells 10, 30 formed in one piece and secured together by a screw ring 24 and in which pins 72 and sockets 73 of the type described in Specification 632,503, are mounted in resilient insulating blocks 50, 55, 50a, 70, the shell 10 has annular abutments 13, 16 forming a recess into which snap flanges 51, 56 on the inserts 50, 55 and a conical portion 17 which receives and compresses the insert 50 around the wire joints 52 so as to prevent ingress of moisture. Similar abutments and flanges are formed on the shell 30 and inserts 50a, 70. An annular groove 57 on insert 55 receives a metal ring 58 having integral metal hooks 59 received in further grooves 60-61 in the insert, said hooks being engageable by a tool, such as a looped wire, by means of which the insert may be withdrawn from the shell. Hooks 59 are also mounted on insert 70.
Patent GB-273351-A (GB)
Title: An improved process for refining mineral oils and/or their distillates
IPC: C10G21/00
Filed: 1926-01-25
Abstract: 273,351. Burmah Oil Co., Ltd., (Fraser J. P.). Jan. 25, 1926. Drawings to Specification. Mineral oils, purifying. - Aromatic and unsaturated hydrocarbons are absorbed from mineral oils by shaking the oils with phenol containing a small quantity of water. (1) The mineral oil is agitated with an equal (or more or less) volume of phenol, containing 5 to 15 per cent but preferably not more than 10 per cent of water, at a temperature above the setting point of the phenol, is then allowed to rest at a temperature below the miscibility point, and the layers are separated. (2) Water (pure or phenolic) preferably in proportion of 10 to 20 per cent is added to the separated phenol layer with gentle agitation, and the liquid allowed to rest, when an oily layer containing the aromatic &c. hydrocarbons floats off the top, and is separated. (3) the remaining phenol layer is agitated at a temperature above 70‹ C. (but preferably between 90 and 100 degrees centigrade) with pure or phenolic water in such a proportion that by dissolving the phenol under treatment quantitatively it will form a solution of 15 to 20 per cent phenol content; the liquid is allowed to settle at the same temperature, and the top oily layer separated. (4) The top oily layer in stage (3) is washed with a large excess of water (pure or phenolic) at above 90‹ C., the water separated, and then used in stage (2) and/or stage (3). (5) The lower layer in stage 3 consisting of a solution of phenol in water is cooled to a temperature below approximately 40‹ C., and the emulsion thereby formed broken by centrifugal means or filtration; the phenol layer is separated from the aqueous layer. (6) The phenolic water obtained in stage (5) is used for the purpose of stage (4). (7) The phenol obtained in stage (5) is concentrated by heating the same to a temperature of 110-120‹ C. and is used for treating a fresh batch of mineral oil as described in stage (1).
Patent GB-381805-A (GB)
Title: Improvements in or relating to the regulation of voltage or current by means of electron tubes
IPC: H02P9/26
Filed: 1932-01-25
Abstract: 381,805. Automatic regulation. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Stansbury, C. ; 12th Street, Milwaukee, Wisconsin, U.S.A.) Jan. 25, 1932, No. 2214. Convention date, Feb. 2, 1931. [Class 38 (iv).] The energization of the field. winding 2 of a generator is varied in response to conductivity variations in a gaseous discharge tube 3 which is rendered alternatively conducting and non- conducting for periods varying relatively in response to variations in the output voltage or current of the generator. The field winding has a low constant excitation through an adjustable resistance 12 and the conductivity of the tube 3 in parallel with the resistance is controlled by a second tube 4 in a circuit comprising the tube and a resistance 8 and associated with condensers 9, 10, 11 connected as shown between the respective anodes and grids of the tubes. Discharge circuits for the condensers 10, 11 respectively include resistances 7, 6 which are adjusted to determine the relative periods of conductivity and non- conductivity of the tube 3. A vibrating relay 5 comprising a coil subject to the output or voltage current of the machine 1 is adapted to short circuit periodically a portion of one or other of these resistances to vary the time of discharge of the respective condensers and in consequence the relation between the conducting and nonconducting periods of the tube 3. The relay may vary the capacity of the condensers 10, 11 by mechanical means.