baber/WOPTO huggingface dataset:
Patent GB-345646-A (GB)
Title: Improvements in incandescent electric lamp sockets
IPC: H01R33/46
Filed: 1929-09-20
Abstract: 345,646. Electric incandescent lampholders. SMITH, W. J. F., 76, Kenneth Street, Longueville, New South Wales, Australia. Sept. 20, 1929, No. 28528. Convention date, Oct. 29, 1928. Void [Published under Sect. 91 of the Acts]. [Class 39 (ii).] A lamp holder made of insulating material comprises a body portion, a core member, two conductors each of which has spring means at one end for gripping the lead and a broad horizontal springy plate at the other end for contacting with the lamp terminal and a two-part shield member which protects the lead-gripping ends of the two conductors and closes them by pressure on to the leads. The body portion, Figs. 1, 2 and 3, has an upper flange 14, interrupted at 15, and receives the core member 16 the top of which, as shown in Fig. 3, is of cruciform shape. Slots in the ends of the short arms of the cross receive tightly the flat conductors 19, the upper ends of which have spring tongues 20 for gripping the flexible leads 23 and the lower ends of which are doubled at 21 and extended horizontally to form contacts for the lamp terminals. They are separated bv an insulating body-stiffening member 22. Each half of the two-part shielding member, as shown in inside elevation in Fig. 5, consists of a substantially semi-cylindrical moulding 24 grooved at its open lower end at 27 to receive the flange 14 of the body member of the holder. A projection 28 in the grooves 27 enters the recess 15 in the flange 14 of the holder. The two halves 24 are secured together on the holder by a single screw which is inserted in a transverse boss 29 and as they are drawn together internal bosses 26 press the spring tongues 20 against the short arms of the core 16 and tighten the grip on the leads 23. The leads pass through slots 18, Fig. 1, in the longer arms of the core and after being crossed above the top of the core they emerge through an opening 31, Fig. 5, at the top of the protecting sleeve.
Patent GB-1091667-A (GB)
Title: Camping cot and cover therefor
IPC: A47C29/00
Filed: 1966-06-27
Abstract: 1,091,667. Beds. W. D. WILLIS. June 27, 1966, No. 28715/66. Heading A4J. A camp bed may be supported on foldable leg frames 13, 23 or mounted on the roof of a car (Fig. 6, not shown) and is enclosed by a collapsible tent structure. On folding end frames 33, 27 inwardly about their hinge connections to side rails 11, tent supporting loops 59, 62 collapse inwardly to overlap, as all parts assume a flat folded condition. Mesh screens (83) and 94 are covered by flaps 87 and 96, respectively. A metal sheet (98) held by springs (99, 101) may support the central part of the bed between rails 11.
Patent GB-803611-A (GB)
Title: Improvements in beds
Inventor: MYER ALAN HORATIO LESLIE
IPC: A47C19/02
Filed: 1954-10-07
Abstract: 803,611. Bedstead &c. headboards. MYER & CO., Ltd., H. March 8, 1955 [Oct. 7, 1954], No. 28913/54. Classes 52(2) and 52(4) The cushion 15 for an upholstered headboard is mounted on a panel 13 and inserted in an aperture in the headboard. A sheet of covering material 18 can be wrapped over the face of the cushion so that its edges are clamped in the aperture by means of the panel 13. Turn buttons 17 may be used to secure the panel in place. In the case of a divan the headboard supporting posts 5 can be detachably secured by clamping screws 9 or brackets 10.
Patent GB-1144586-A (GB)
Title: Static electric converter
IPC: H02M7/757
Filed: 1966-06-28
Abstract: 1,144,586. Converting; synchronous generators with D.C. excitation. ALLMŠNNA SVENSKA ELEKTRISKA A.B. 28 June, 1966 [29 June, 1965], No. 28924/66. Headings H2A and H2F. A thyristor converter 3 is normally controlled by a control pulse generator 13, but if the voltage of the A.C. system drops below a certain value this is detected by a device 20 and a continuous firing signal is applied to the control electrodes of all the thyristors. The field winding 2 of a generator G is compound excited from transformers 7, 10 through the uncontrolled rectifier 4 which is connected in series with the converter 3 which may invert or rectify as required. Normally, the converter 3 is controlled by the pulse generator 13 in accordance with the voltage and current monitored at 15 and 16 respectively. The generator voltage rectified at 17 charges a storage battery 19 through a controller 18 and is also fed to the detector 20, which connects the battery 19 to an oscillator 21 and rectifiers 26, 27, 28 when the generator voltage falls. The invention prevents overloading of one thyristor due to commutation failure when the generator is short circuited.
Patent GB-285951-A (GB)
Title: Improvements in chains and chain belts
IPC: F16G5/18
Filed: 1926-11-16
Abstract: 285,951. Chalk, J. T. Nov. 16, 1926. Driving and like chains with separate joint pins.-In chains and linked belts, alternate links comprise a pair of plates 1 each provided with a curved spring projection 2 or 2<a>, adapted to engage the outer side of the companion plate and prevent their lateral separation. Both projections may be formed upon one plate. Distance-pieces 9 which may be separate or struck up from one or both plates maintain proper spacing of the plates 1. Where two such pieces are employed they may be riveted together. Holes 15 formed in the plates 1 and larger holes 16 in the projections 2, 2a receive joint-pins 17 on which connecting-links 19 and spacing sleeves 20 are pivoted. The ends 18 of the pins are shouldered to limit the approach of the spring projections 2, 2a. One or more pairs of links 19 are provided with additional holes for adjusting the chain length. Where the device is to be used as a chain, the plates 1 are formed to the shape of the usual inner combination element of a silent chain. For use as belts engaging V-grooves, suitably shaped spiked and plain flanges 4, 7, 8, 11 are provided to grasp tapered fibre blocks 13, forming the driving elements. According to the Provisional Specification, the springs 2, 2a may be dispensed with and the distance-pieces employed to connect the plates 1, the elastic properties of the plate ends securing the pins 17 in position.
Patent GB-1067713-A (GB)
Title: Welded helical lock seam pipe and method and apparatus for manufacturing same
IPC: B23K9/032
Filed: 1964-07-15
Abstract: 1,067,713. Making pipes; coiling; seaming; welding by pressure. ARMCO STEEL CORPORATION. July 15, 1964 [July 24, 1963], No. 29076/64. Headings B3A, B3E, B3J and B3R. [Also in Division F2] In a pipe having a helical lock seam providing a plurality of thicknesses of metal along the seam, the interfaces therebetween are forge welded together. Seam elements are formed along the edges 11, 12 of the incoming strip 13 in a helical lock seam pipe forming machine 10 and are brought into inter-engagement. A series of rollers 14, 15, 16, 16a function to compress and progressively to incline the seam. An induction heater 26 rapidly heats the seam so that it may be welded between rollers 17 and two or more of the interfaces of the seam are welded together as required. The seam may alternatively be heated by a plasma arc,  gas, or Laser and Maser devices. The induction heater 26 is formed from a copper bar and may be provided with a cooling passage.
Patent GB-1156583-A (GB)
Title: Current Integrator
IPC: G06G7/184
Filed: 1966-06-29
Abstract: 1,156,583. Integrators. ROBERTSHAW CONTROLS CO. 29 June, 1966 [2 July, 1965], No. 29245/66. Heading G4G. [Also in Division H3] In an integrator circuit (Fig. 1) a D.C. input between terminals 22, 24 over tapped resistor R1 produces at the base of transistor Q1 a corresponding voltage; Zener base being set by tapped resistor R8 fed from Zener diode stabilized circuit DZ2, R3, DZ3 to control the current in the collector emitter path of transistor Q6 which flows in opposition to the input current in R1. Transistor Q 1 is based from tapped resistor R5 fed from the Zener diode stabilized circuit, and the collector-emitter circuit of Q1 conducts to charge capacitor C1 at a rate proportional to the zero based input current set by the adjustable tappings of R1 and R5. The voltage across C1 rises and that at point 34 falls, until Q2 conducts to reduce voltage at its collector 46, whereby the transistors Q3 and Q4 are driven conducting. Capacitor C1 is discharged over Q3 and Zener diode stabilized circuit DZ1, R2, and the discharge current holds the base of Q2 at sufficient voltage to latch Q2 conductive until discharge of C1 is completed and zero voltage restored. Q3 is latched to hold Q4 conductive until capacitor C2 charges to a predetermined voltage, after which it charges over resistor R7 into the base of transistor Q5 which is held conductive for a period determined by the time constant of C2, R7 to pulse load impedance ZL at a frequency corresponding to input currents to drive a pulse totalizing register (not shown) and the cycle repeats for the duration of input current exceeding the zero base, to produce the corresponding integral. In Fig. 2 (not shown) the circuit power supply is derived from rectified and smoothed AC, with further diodes providing emitter bias for Q4 enabling full saturation of Q3 during reset, and reverse voltage transient suppression in the output to protect Q5. Resistance shunt is provided for the quantizing capacitor, so that Q1 is biased to operate more linearly; and a capacitance shunt to R1 rejects noise components of the input.
Patent GB-159321-A (GB)
Title: Improvements in turning and stopping indicators for motor or other vehicles
IPC: B60Q1/34
Filed: 1919-11-25
Abstract: 159,321. Keen, S. H. Nov. 25, 1919. No Patent granted (Sealing fee not paid). Road-traffic signals on vehicles; mechanical telegraphs.-In a turning and stopping signal of the type in which a pointer is moved round an indicating-dial by a control lever, a cable H attached to the control lever F is secured to the middle point of a lever J, the opposite ends of which are secured to cables K which actuate the pointers C at the rear and front of the vehicle. The dials over which the pointers move are translucent and form the ends of casing A which contain lamps O. The pointers C are on spindles passing through the casing. On the spindles are drums D to which the cables are attached, the drums being returned to zero by springs.
Patent GB-216834-A (GB)
Title: Method of and apparatus for separating the volatile ingredients of a liquid mixture
IPC: C11B1/10
Filed: 1923-11-21
Abstract: 216,834. Lemale, P. C. June 1, 1923, [Convention date]. Fatty oils, extracting by solvents.-A distilling- apparatus for separating volatile solvent from a solution obtained in extracting oils or fats from seeds, hides, skins, clothes, &c., is evacuated by a liquid-jet exhauster of the centrifugal type which condenses the vapours. An extracting- vessel A, heated by a steam coil A<3>, is supplied with solvent from a vessel C through a pipe E, and the solvent after passage through the seeds passes by a pipe E<1> and through tubes B<1> contained in a steam chest B<2> into the distilling vessel B, which communicates at its base with a vessel F for receiving and discharging the oil. The vessels A, B are exhausted by a liquid-jet exhauster D of the centrifugal type which draws liquid from the vessel C by a pipe D<1> and returns it together with vapours through tubes C<1> contained in a cooling chest C<2> to the vessel C from which the condensed solvent is returned to the tank A. The air in the apparatus may be replaced by a neutral gas, such as nitrogen or carbonic acid gas.
Patent GB-713836-A (GB)
Title: Improvements in or relating to weighing apparatus
IPC: B07C5/20
Filed: 1950-12-01
Abstract: 713,836. Sorting by weighing. OTTLEY. G. F. F., and SPERRY GYROSCOPE CO., Ltd. Nov. 30, 1951 [Dec. 1, 1950], No. 29458/50. Class 143 Packages stacked in a vertical feed 3 are pushed on to a pair of pivoted support arms 8 by a feeder 4 controlled by a motor driven cam lever 5. As the feeder moves forward a pin 10 in the cam lever 5 allows the support arms 8 to rotate about pivot 9 and lower the package on to the weighing platform 2. Packages above a certain weight cause a discriminating switch 11 (contact and mercury pool) to close, energizing solenoid 15 to tip the weighing platform 2 and discharge the package down a shoot 18. Packages below the minimum weight (which do not operate the switch) are raised on the arms 8 as the feeder 4 moves back and pushed down a shoot 14 by the following package as it is fed on to the support arms. Two machines may be used in series to select packages within predetermined weight limits. In an alternative arrangement, Fig, 2, (not shown) packages are fed on a conveyer to the reciprocating feeder and heavy packages are ejected from the weighing platform by a solenoid actuated pusher. The weighing element may be as described in Specification 633,075.
Patent GB-249021-A (GB)
Title: Improvements in and connected with methods of and means for the telegraphic transmission of pictures, diagrams and other impressions
IPC: H04N1/036
Filed: 1924-12-11
Abstract: 249,021. Baker, T., Thorne-. Dec. 11, 1924. Copying-telegraphs.- Light reflected from successive elemental areas of the picture or like at the transmitting station is incident on a light-sensitive cell, the varying current is transmitted to the receiving station where it produces corresponding variations in the intensity of a source of light arranged to illuminate successive elemental areas of a photographic reproducing surface, and means are provided for effecting the exploring movements at the two stations in synchronism. In the transmitter, Fig. 1, the picture wrapped around a rotary cylinder a reflects light emitted from a source f and concentrated by a lens c to a prism d which reflects it on to the light-sensitive cell e. In the receiver, Fig. 2, the current passes through lamps f, f<1> in parallel mounted in a casing g directing a spot of light on to the photographic surface wrapped around a rotary cylinder a. Normally the lamp f is in use, the lamp f<1> being masked by a pivoted shutter h which is moved by gravity to unmask the lamp f<1> upon deenergization of a magnet j in the event of failure of the lamp f. To obtain more brilliant illumination the lamps may be subjected to a current which would over-run them but for the variations due to the transmission. The cell e at the transmitting station may be arranged to act as a variable grid leak in connection with a thermionic valve for wireless transmission, the lamps at the receiving station being controlled by connection with the plate circuit of a receiving valve. The exploring movements are preferably effected as described in Specification 248,837 and synchronism may be maintained as described in Specification 249,020. According to the Provisional Specification the picture at the transmitting station may be explored simultaneously by two or more light-sensitive cells to accelerate the transmission.
Patent GB-1532952-A (GB)
Title: Attaching plastics materials to one another
IPC: B29C65/02
Filed: 1975-10-01
Abstract: 1532952 Seaming non-metallic sheet material METAL BOX Ltd 1 Oct 1975 [5 July 1974] 29812/74 Heading B5K Apparatus for welding a first plastics material 13 under tension to a second plastics material 12 comprises an electrically heatable welding head mounted on a frame 35 movable towards and away from the material 13, and pusher members 45 comprising generally wedge-shaped elastomeric members mounted one on each side of the welding head on inclined faces 55 of the frame 35 and arranged so that, in use, as the frame 35 approaches the material 13, they contact the material 13 and thereafter, by relative movement in contact with the material 13, generate mutually convergent forces so as to locally remove or substantially reduce tension in the material 13 where welding is to take place. As shown, the apparatus attaches a labelretaining transparent plastics sleeve 13 of low density polyethylene to a wall 12 of a plastics container 10 blow-moulded from high density polyethylene. The E-section frame 35 has limbs 37, 38 in the grooves between which bars 40 are slidable on rods 47 and are urged outwardly by compression springs 46. The members 45 comprise trapezium-section facings on inclined faces 55 of the bars 40. A resistance heating wire 26 is mounted on the limb 37. The frame 35 is secured to the piston rod 33 of a pneumatic or hydraulic ram 17. In use, containers 10, each with a sleeve 13 positioned therearound, are fed intermittently by a conveyer belt to a position at which two of the welding apparatus of Figs. 1 and 2 are transversely aligned and the frames 35 are advanced by the ram 17 to engage transversely opposed side edges of the successive containers. In a modification (not shown), the limbs 38 of the frame 35 are omitted and the bars 40 are rigidly connected by a member arranged to move in a slot formed in the limb 37. The apparatus may be used to weld polyethylene to polyethylene or polypropylene without an additional adhesive but if a polyolefin is to be welded to polystyrene or polyvinyl chloride, a hot melt or thermoplastic adhesive is applied to the container before the sleeve is positioned thereon.
Patent GB-1011753-A (GB)
Title: Optical system with variable focal length
Inventor: SCHLEGEL FRANZ
IPC: G02B15/14
Filed: 1962-08-03
Abstract: 1,011,753. Zoom lenses. R. RODENSTOCK, [trading as OPTISCHE WERKE]. Aug. 3, 1962, No. 30010/62. Heading G2J. The lens comprises a movable divergent assembly 13-16 between to convergent assemblies, the movable assembly being divided into a stronger part 13-15 movable by relatively large amounts and a weaker part 16, having a focal length at least four times that of the stronger part 13-15, movable by relatively small amounts, the stronger part being formed by a single meniscus lens 13 convex to the front and a cemented doublet 14, 15, the focal length of lens 13 being no more than half that of the doublet 14, 15 and the concave surface of lens 13 having the smallest of the five radii of the surfaces of part 13-15, the diaphragm being disposed between lens 16 and the rear convergent assembly. The rear convergent assembly 17-21 may consist of a triplet with a subdivided front member 17, 18 19 and a fixed convergent lens 22 may be provided, the system 10-16 and 22 being removable from the assembly 17-21. Optical data are given for the example shown.
Patent GB-534246-A (GB)
Title: Improvements relating to clips for securing rubber and like hose to metal and other tubes
IPC: F16L33/04
Filed: 1939-11-14
Abstract: 534,246. Band clips. LINOLITE, Ltd., and BEUTTELL, A. W. Nov. 14, 1939, No. 30020. [Class 44] In a band clip completely encircling the pipe &c. twice and tightened by screw, a preferably rectangular separately formed link is incorporated through which a lap of the band passes. Fig. 1 shows the band in two parts connected by a link b through which the lap a is passed. As shown, one end of a T-ended bolt c is engaged by one end of the band, the other end of the bolt receiving a tightening nut d between which and the end of the band a block e may be used. The ends of the band may be bent completely round the T-end of the bolt and the block. Modifications are described in which the band is in one piece with one end connected to the nut by a link. In one of these the nut is formed from strip bent to U-form, the screw bolt passing through threaded holes in both limbs and the link being accommodated in the bight.
Patent GB-268683-A (GB)
Title: Improvements in or relating to compressors
IPC: F25B1/04
Filed: 1926-11-27
Abstract: 268,683. Middendorf, G. Nov. 27, 1926. Multi-stage screw pumps.-A compressor for gaseous fluids or the like used in refrigerating systems has a closed cylinder 10 provided with inlet and outlet pipes 19, 23 and a central shaft 12 carrying sets of propeller or fan-like members 17 each of which has comparatively long screw curved passages 17'. The inlet pipe 19 is connected to the refrigerating coil or chamber 20 and the outlet pipe 23 to the cooling coil 24 the volume of which is considerably smaller than that of the compressor cylinder 10. The compressor is operated at high speed and draws fluid from the coil 20 ,compresses it and passes it into the coil 24 where it liquefies. It then passes through the expansion valve 26 and enters the coil 20 again as gas and the rapid evaporation causes it to absorb heat from the refrigerating room.
Patent GB-812373-A (GB)
Title: Check valves more particularly for tubeless tyres
IPC: B60C29/02
Filed: 1955-10-21
Abstract: 812,373. Tyre valves. HOSKING PATENT CORPORATION. Oct. 21, 1955 [Oct. 29, 1954; May 4, 1955], No. 30103/55. Class 135. A check valve for attachment to a compressedair container such as a tubeless tyre comprises a body portion including a hollow stem adapted to extend into the container through a hole in a rigid portion thereof, e.g. the rim of a wheel, a valve member seated within the stem, and an elastic body on the end of the stem which extends through the hole in the container, the elastic body being adapted to form a seal around said hole under pressure applied from within the container. In one embodiment, a metal stem or body 30, Fig. 2, passes through a hole in a wheel rim 37 from the inside and is held, with a shoulder 35 in engagement with the rim, by a nut 45. The elastic sealing member 38 comprises a skirt 41 for engagement with the inner part of the rim and has embedded in it a perforated extension 40 of the metal body. The rubber &c. material of the member 38 may be extended at 42 into the bore of the metal body. Although the body is screw threaded internally to receive a tyre valve 32 is may be provided with a seating 43 in the part 42 for a valve closure member of the kind shown in Fig. 10. The body is also threaded externally to receive a dust cap. In a modification, the shoulder 35 is adapted to carry a rubber &c. sealing ring whilst in a further embodiment the sealing member 38 is backed by a flange integral with the metal body 30, the latter in this case carrying a separate collar which serves as an abutment coacting with the inner part of the hole in the wheel rim. The sealing member 38 may be of circular or elongate form. Fig. 10 illustrates another form in which the material on the sealing member is extended on the exterior of the metal body 58 and is enclosed by a conical cap 70 which screws on to the outer end of the metal body and secures the body in place. The closure member 73 coacts with a seating 67 and is carried by a pin 74 which is slidable in a tubular member 75 threaded into the body 58. Fig. 14 illustrates a further embodiment which may be attached to the rim from the outside. Parts 82, 85 are initially separate from the remainder of the valve body and are passed through the hole in the rim whilst being threaded on a hexagonal bar which also passes through the bore of the valve body. The latter is then engaged in the hole in the rim and the hexagonal bar turned to screw the member 82 into the end of the valve body and draw the member 85 downwardly to expand the elastic sealing member 90. In a further embodiment, a steel sleeve 109, Fig. 27, is embedded in the elastic part of the valve housing but not bonded thereto so that air pressure within the tyre, which has access to the sleeve through a bore 119, expands the elastic part of the body surrounding the sleeve to improve the sealing with the hole in the rim.