baber/WOPTO huggingface dataset:
Patent GB-335651-A (GB)
Title: Improvements in presses for the manufacture of interlocking tiles
IPC: B28B3/02
Filed: 1929-07-08
Abstract: 335,651. Monnier, A. July 8, 1929. Cylinder machines, stationary-mould.-A press for moulding interlocking tiles is provided with a frame which slides up around the upper die but is lowered to form the vertical wall of the mould chamber. The lower edge of the frame is bevelled to form a cutting edge which removes excess of clay paste forced out from between the dies. As shown the lower dies 1 of the press are formed as faces of a five-sided priem and are successively brought into position beneath a ram 5 carrying the upper die 2 and operated by eccentrics 8 on a shaft 13. A frame 3 sliding around the die 2 is moved downward at the same time as the ram by rods 10 operated by cams 12 on the shaft 13. The frame is formed with perforations through which air can escape at the beginning of the pressing operation. The clay blanks have initially a slightly greater length and width than is desired for the tiles. Springs, such as Belleville rings 21, are provided between the main frame and an intermediate frame 20 in which the ram is mounted.
Patent GB-1143489-A (GB)
Title: Cellular graphited carbon having closed cells and process of manufacture thereof
IPC: C04B35/524
Filed: 1966-05-11
Abstract: 1,143,489. Cellular graphitized carbon. PNEUMATIQUES. CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBERCOLOMBES. 11 May, 1966 [11 May, 1965], No. 20970/66. Heading C1A. [Also in Division C3] Cellular bodies of carbon of graphitic structure, the majority of whose cells are closed, are produced by heating a mixture of polyvinylchloride, an isocyanate, a blowing agent, an ethylenic acid anhydride and at least one polymerizable compound containing at least one carbon-carbon double bond, in a mould under pressure at a temperature of 150- 200‹ C. The product is withdrawn from the mould and subjected to the action of water or steam to obtain a cellular body. This body is then subjected to a thermal treatment of carbonization and graphitization. The volatile products may be removed by heating between 100‹ C. and 220‹ C. at a continuously increasing temperature or by isothermal stages, in an ambient atmosphere or a chemically neutral atmosphere. The carbonization may be terminated by thermal treatment at about 1000‹ C. in an inert atmosphere, the temperature being slowly increased particularly between 350‹ C. and 600‹ C. The final stage of heat treatment is preferably heating above 1600‹ C. for a period of between “ hour and 12 hours. Examples of polymerizable compounds that may be used in the mixture are divinylbenzene, styrene, ethylene glycol dimethacrylate, divinylsulfone and tetraethyleneglycol dimethacrylate.
Patent GB-632097-A (GB)
Title: Improvements in or relating to the production of protective and decorative coatings
IPC: C23C22/38
Filed: 1947-08-01
Abstract: The process of the parent Specification is modified by adding arsenate ions to the aqueous acid solution, the combined phosphate and arsenate ions amounting to at least 2 grams per litre and the arsenate ions amounting to 0.2 to 3 grams per litre.  The solution may be prepared from a concentrate having a ratio of F to CrO3 to PO4 to As2O5 of 1.0 to 2.47-7.4 to 1.8-67.5 to 2-3 and may be replenished by a concentrated admixture having a ratio of F to CrO3 to PO4 to As2O5 of 1 to 0.7-1.4 to 0.5-1.0 to 0.006-0.012, which may also contain free acid in the proportion of 0.05 to 0.10 gram equivalent of acid to 1 gram fluorine.ALSO:The process of the parent Specification is modified by adding arsenate ions to the aqueous acid solution, the combined phosphate and arsenate ions amounting to at least 2 grams per litre and the arsenate ions amounting to 0.2 to 3 grams per litre. The solution may be prepared from a concentrate having a ratio of F to CrO3 to PO4 to As2O5 of 1.0 to 2.47-7.4 to 1.8-67.5 to 2-3 and may be replenished by a concentrated admixture having a ratio of F to CrO3 to PO4 to As2O5 of 1.0 to 0.7-1.4 to 0.5-1.0 to 0.006-0.012 which may also contain free acid in the proportion of 0.05 to 0.10 gram equivalent of acid to 1 gram fluorine.
Patent GB-204820-A (GB)
Title: Improvements in and relating to chain pumps
IPC: F04B19/16
Filed: 1922-08-01
Abstract: 204,820. Davis, R. W. O. Aug. 1, 1922. Chain pumps. - A chain pump comprises an endless rope &c. b to which a number of independent chambers a of open or reticulated form are secured, the axes of the chambers being at right angles to the axis of the rope and preferably extending at each end beyond the rope &c. The chambers may be sprung on to the rope or secured by means of holders e attached to the rope. Two or more ropes may be used.
Patent GB-305684-A (GB)
Title: Improvements in or relating to machines for sealing containers
IPC: B65C1/04
Filed: 1927-08-10
Abstract: 305,684. Molins, W. E., Chalmers, J. W., and Molins Machine Co., Ltd. Aug. 10, 1927. Labelling and stamp-applying.-In a machine for wrapping bands, stamps or the like around cigarette or other packets an oscillating sucker 8 moves periodically into engagement with the lowermost of a pile 7 of revenue stamps or the like, which passes down a slot between guides 13, 14 over a gumming roller 15 from which it is stripped and carried by a suction wheel 19 to the broad side of a paket 1 which has been fed from a stack 2, by a conveyer 4. A gravity arm 2<a> is moved by the packet as it leaves the stack to close the valve of the oscillating sucker so that when the arm 2a is not raised by a packet the sucker is rendered inoperative. The bands are supported at the leading edge by a ledge 9 against which the band is bowed by the sucker and a support 10 moved between the bowed edge and the remaining bands in the pile. Continuously rotating rollers 20 grip the packet after the band has been aplied and feed it forward more quickly than the conveyer and deliver it to a platform 21 beneath a slacker 22. The platform is reciprocated vertically by a cam 24 and lever 20. Brushes 25 form the sides of the stacker and force the sides of the band on to the ends of the packet. A shoot 26 catches any bands which fail to be carried round the surface of the gum wheel. In Fig. 5 means are shown for placing a stamp on the narrow edge of the packet. The packets are taken singly from the bottom of a magazine 27 by means of pawl 29 conveyed on the rim of a wheel 28 and fall down into guides 30 of the labelling machine.
Patent GB-1171034-A (GB)
Title: Two-Piece Potentiometer.
IPC: H01C10/32
Filed: 1968-05-03
Abstract: 1,171,034. Variable resistors. STACKPOLE CARBON CO. 3 May, 1968 [6 July, 1967], No. 21096/68. Heading H1S. A substrate 1 is coated with resistive material 3 except for line 5 around an aperture 10 in which a rotor 11 is mounted having a contact 12 connecting the resistor 3 to conductive material 8 coated on a centre tongue 2 integral with the substrate, the outer tongues 2 carrying conductive material 7 contacting the ends of the resistor 3. The rectangular substrate 1 is covered by the coating 3 apart from the gap 5 formed by a groove 6 in which application of the coating is prevented. Alternatively, a ridge has the coating subsequently removed from it. The sheet metal rotor 11 has fingers 15 with nibs 16 contacting the metal coating 8, a resistor contact 12 having a nib 17, struck cut tongues 13 which are bent through the aperture 10 so as to engage the rear of the substrate 1. The slots from which the tongues 13 are struck can receive an operating tool. Stops, e.g. holes 20, in the substrate 1 prevent the contact 12 from moving off the resistive track.
Patent GB-1272626-A (GB)
Title: Electrical tool
IPC: H02P7/29
Filed: 1969-04-25
Abstract: 1,272,626. Control of D.C. motors. ROBERT BOSCH G.m.b.H. 25 April, 1969 [27 April, 1968], No. 21139/69. Heading H2J. [Also in Division G3] An electric tool is powered by a motor 18 energized from an A.C. supply via a rectifier connectable directly to the supply and contained within the tool casing, and its speed is kept substantially constant by a regulating arrangement on the D.C. supplied to the motor. As shown, the regulating arrangement comprises a voltage dependent resistor 17 in series with the motor, but it may alternatively be in series with the motor field only (Fig. 4, not shown). In Fig. 1 (not shown), the regulator is a centrifugal governor with contacts either in the motor circuit or controlling a thyristor which is in the motor circuit, with a capacitor and voltage dependent resistor to suppress sparking, and in Fig. 2 (not shown) a tachogenerator controls the speed via an unspecified "electronic device." The motor may be disconnected in the event of overspeed by a centrifugal switch or by additional contacts on the speed regulating centrifugal governor, by a device sensitive to the cooling air flow, or by a relay sensitive to the voltage distribution between the field and armature windings. Alternatively, a vane-type governor, which may be the cooling fan, is arranged so that its surface area increases at a predetermined speed and the resulting braking warns the operator to switch off.
Patent GB-932051-A (GB)
Title: Improvements in or relating to light-sensitive devices
Inventor: ROBINSON KENNETH ARTHUR
IPC: H03G3/30
Filed: 1958-07-02
Abstract: 932,051. Automatic gain control. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Sept. 18, 1959 [July 2, 1958], No. 21189/58. Class 40 (4). [Also in Group XL (c)] A light-sensitive amplifier circuit comprises a phototransistor 1 receiving input light signals at its collector-base junction and having its base connected to a power-supply terminal of one polarity through a resistor 2, its collector connected to the power-supply terminal of opposite polarity through a load resistor 3 and its emitter connected to the first power-supply terminal through a temperature-sensitive resistor 4 which is associated with a heating resistor 5 in a feedback loop to which the output of the phototransistor 1 is applied, whereby, as the mean level of the output of the phototransistor increases, its gain is reduced to maintain the average output voltage of the phototransistor nearly constant. Feedback is effected through emitter-follower transistor 6. When the thermistor 4 is cold, the gain of phototransistor 1 is such that the potential at point 10 goes negative thus allowing conduction through diode 11 and heating resistor 5 to reduce the gain of the phototransistor. Diode 12 prevents the collector voltage rising above a safe value in the event of failure of the light supply. The Provisional Specification describes a circuit in which an adjustable reverse bias is applied to the base of the phototransistor and a variable resistor is included in series in its emitter circuit so that for light inputs above an adjustable level, selected by adjustment of the bias battery, the gain of the amplifier is dependent upon the value of the variable emitter resistor.
Patent GB-897856-A (GB)
Title: Improvements in or relating to door handle arrangements
IPC: E05B3/04
Filed: 1960-06-16
Abstract: 897,856. Securing door-handles on shafts. ENGSTFELD, K. June 16, 1960 [Sept. 3, 1959], No. 21227/60. Class 80 (2). A door-handle 13 is longitudinally secured to an end 2 of a square spindle 1 by a spring strip 9 which engages a flat 5 along a spindle edge, is bent along a longitudinal crown 8, and has arms 6, 7 the extremities 10 of which are reversely bent to clear the flat 5 and are indented to bite into the handle material when a radial screw 12 in the handle acts on the crown 8. The flat 5 is inclined relatively to the spindle axis, the spring strip 9 being appropriately wedge-shaped, so that grip is increased by axial pulling of the handle relative to the spindle. Claws 14 retain the spring strip in the spindle. The spindle edge 15 opposite the flat 5 is relieved to ensure satisfactory fitting of the adjacent spindle sides 16 in the handle aperture. A permanently fixed handle is cast or pressed in known manner on to the opposite spindle end 3.
Patent GB-178062-A (GB)
Title: Improvements in air tubes for pneumatic tyres
IPC: B60C5/08
Filed: 1921-08-11
Abstract: 178,062. Soc. Anon. des Etablissements Hutchinson. April 6, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Air tubes and chambers.-A selfsealing tube is formed by attaching or moulding a tapered band d to the outside of the tube. The built-up tube is then turned inside out so as to put the band d in compression when in use, as shown.
Patent GB-1113782-A (GB)
Title: Improvements in or relating to explosive actuated tools for driving nails studs or other anchoring members into hard materials
Inventor: WAC KROW ROGER DAVID
IPC: B25C1/14
Filed: 1964-05-23
Abstract: 1,113,782. Cartridge-actuated tools. BIRMINGHAM SMALL ARMS CO. Ltd. 21 May, 1965 [23 May, 1964], No. 21382/64. Heading B4C. An explosive-actuated tool for driving anchoring members, such as nails, into hard material comprises a piston element 4 adapted to be returned to the same position relative to a body portion 2 for the firing of the next cartridge independent of the length of the nail and a resiliently mounted guide member 15 adapted to receive the nail and support a part of the piston. The piston is provided with a head 13 adapted to also enter a chamber 12 and abut a surface 22 when a nail has been inserted into the end 17 of the guide 15 and the latter pressed against the workpiece; the guide is loaded to the position shown by a spring. A cartridge ejector 23 is provided. In a modification (Fig. 3), the head (39) of the piston slides in a bush (38) secured in a body (31) to which a cap (44) is removably connected. A plunger 40 is slidable in the cap and is formed with a cartridge chamber at one end and a knob 41 at the other, which may be struck with a hammer. In a further modification, the cartridge chamber is formed in the piston head.
Patent GB-358605-A (GB)
Title: Advertising and signalling device for vehicles
IPC: G09F11/02
Filed: 1930-07-16
Abstract: 358,605. Changing signs. WALKER, B. H., 28, Kitchener Road, Thornton Heath, Surrey. July 16, 1930, No. 21505. [Class 3(i).] An advertising or signalling device adapted to be mounted on a vehicle or other movable support and operated by the motion thereof comprises one or more blades carrying the desired legends on both sides and adapted to be revolved through 180‹ by the action of a control member which is moved backwards and forwards by the acceleration and deceleration of the support. Fig. 1 shows the blades h rotatably mounted between the uprights b by means of the centre pins h<1>, to which they are permanently or removably attached. The pins h<1> carry small pinions h<2>, Fig. 3, which mesh with the larger pinions e, f, f<1>, which are themselves in mesh. Revolution of the blades is effected by means of a pin c<2>, mounted on the control member c, which passes through a slot b<2> in the support b and engages a slot e<1> in the wheel e. The control member c is pivoted to the main framework at b<1> and carries weights c<1>, whereby it is caused to move between the adjustable stops d<1> and to operate the blades whenever the vehicle's speed changes. Means may be provided for locking the blades in either of the two positions, and when two sets of blades are employed, as shown, such means may comprise a vertical shaft k with projecting arms k<1> adapted to engage the edges of the blades on both sides.. At the top of this shaft is mounted a cam plate e, Fig. 4, having a suitably shaped slot l<1>engaged by a pin c<4> on the control member, the arrangement being such that the locking arms k<1> are revolved out of engagement with the blades before these are caused to revolve by the action of the pin c<2>. Means may be provided for locking the control member, and it may also be arranged to light a lamp to illuminate the legend at every actuation. The blades may be coupled by tie pieces instead of the wheels e, f, f<1>, or else by bevel wheels if the sign is arranged longitudinally with respect to the vehicle.
Patent GB-460525-A (GB)
Title: Improved method and means of glazing, applicable also to other sheeted coverings for buildings and garden structures
IPC: E04D3/08
Filed: 1935-07-29
Abstract: 460,525. Roofs ; glazing. HEARN, E. July 29, 1935, No. 21539. [Classes 20 (iii) and 20 (iv)] Glass or like roofing-sheets are secured to sash bars or the like by hook-shaped members or clips 2 supported on the sash bar by additional C-shaped hooks 6. The upper edge of each sheet rests on the web of a bar 1 and is retained there by the bent body of the clip 2. The C-shaped hooks are first engaged with the flange of the bar 1 and then moved laterally to secure the clip 2.
Patent GB-835119-A (GB)
Title: Improvements in or relating to push button operated electrical switch assemblies
IPC: H03J5/32
Filed: 1956-07-12
Abstract: 835,119. Keyboard switches. TELEFUNKEN G.m.b.H. July 12, 1956 [Aug. 11, 1955], No. 21572/56. Class 38 (5). A push-button switch assembly suitable for wave-range control in radio &c. is constructed of two separable parts, of which one, Fig. 1, comprises the press-buttons 3 attached to levers 4 pivoted on a spindle 5, and the other, Fig. 2, carries the switch members 13 having hook-shaped ends 13a which, when the parts are assembled, engage slots 12 in the levers 4. Members 13 are mounted, in the arrangement shown, between plates 14, 15 which are screwed to the frame-ends 10, 11 of the other part. Plate 15 carries circuit components 17 and plate 14 carries fixed switch contacts and connectors 16 to which connections from the components 17 and contacts are made by dipsoldering, the connections being effected by adherent printed or photo-etched conductors 18. External connections can be individually soldered to the connectors 16 after incorporation in the radio receiver. In a modification, the switch members are slidable in U-shaped members fixed to a single plate and carrying the components and fixed contacts, tubular parts of the latter extending through the plate to form some of the connectors.
Patent GB-1274964-A (GB)
Title: Improvements in or relating to methods of straightening sheet metal
Inventor: UNGERER IRMA
IPC: B21D1/05
Filed: 1970-05-05
Abstract: 1,274,964. Straightening; altering physical properties. I. UNGERER. 5 May, 1970 [17 May, 1969], No. 21586/70. Headings B3E and B3V. A method of straightening a metal sheet or strip is characterized in that a vibration is imparted to the sheet or strip during the straightening process. A straightening machine for carrying the method comprises an upper and lower assembly of rolls 2 and 3 respectively between which runs the metal strip 4. A vibrator 5 acts through linkage 6 and 7 on the rolls 2 (Fig. 1) which effect vertical oscillations perpendicularly to and transversely to the strip 4 which assist the straightening process and produce a stress-free flat strip. Two such machines can be arranged in series with the second set of rolls running faster and then slower than the first set of rolls so that the strip is subjected to a selectable variable tension during its passage through the two machines (Fig. 3, not shown). In another embodiment the vibrator is positioned between the sets of rollers and acts directly on the strip (Figs. 9 and 10, not shown). In a further embodiment retaining rolls 10, 11 and variably driven traction rolls 12, 13 (Fig. 2) are used and the vibrator comprises rolls 17, 18 mounted on two oscillating arms 15, 16. As the rolls are on opposite sides of the strip 4 oppositely directed pulsating alternating bending stresses are imparted to the strip. The retaining and traction rolls can each have their own vibrator mounted in their separate housings (Fig. 4) the vibrators oscillating the upper rolls at preselected frequencies and in the same or opposite directions to effect tensioning and alternate bending stresses in the strip. The machine of Fig. 4 can be housed in a single frame and additional idler rolls added to one of which is attached the vibrator (Figs. 5 and 6, not shown). Alternatively, the vibrator 53 (Fig. 7, not shown) and 59 (Fig. 8, not shown) is positioned between the roll housings. Another arrangement is given in Fig. 11 (not shown) and in another embodiment a series of vibrators 77, 78 and 79 with intermediate rolls 71 to 76 (Fig. 12) are used. The strip can be made to oscillate transversely by a vibrator placed directly before the straightening rolls, (Fig. 13, not shown) and no tension is imparted to the strip. In a further embodiment two vibrators 85, 86 act on the upper traction roll 12 (Fig. 14) to effect axial oscillations which due to the friction between the roll and the strip the bending stresses act diagonally on the strip and transversely to its feed. The vibration generators may be mechanical e.g. cams; electromagnetic; pneumatic; acoustic by sound or by inaudible ultrasonics.
Patent GB-382639-A (GB)
Title: Improvements in or relating to electric conductors for railways
IPC: B60M1/24
Filed: 1931-07-28
Abstract: 382,639. Supporting conductors. RUTNAGUR, S. M., Military Square, Fort, Bombay, India. July 28, 1931, No. 21596. Convention date, March 21. [Class 36.] An overhead electric conductor for railways is of grooved or 8- shape, the upper part C being enclosed in a continuous slotted tubular support A, while the lower part C<1> projects to engage the collector. The supports A are connected by insulator couplings D, and may be of various cross-sectional shapes. In the form shown in Fig. 9, the upper part is filled with asbestos cement &c. while the lower part receives the wire. The lengths of this form are connected by plugs.
Patent GB-1316889-A (GB)
Title: Electrical remote-control switch
IPC: H01H51/08
Filed: 1971-04-19
Abstract: 1316889 Bi-stable electromagnetic relays ADOLF FELLER AG 19 April 1971 [12 Feb 1970] 21696/71 Reading H1N [Also in Division H2] A bi-stable relay operable to open or close its contacts each time its coil 21 is pulsed has a U-shaped armature 24 with limbs 24a on opposite sides of the coil arranged to pivot about knife edges 24c engaged in notches 23a in a cross yoke member 23 attached to the cone 22 to form a T-shaped fixed magnetic flux path. The armature 24 is biased to its extreme posipositions against resilient stops 26, 27 by a snapaction spring 25 and has cut out portions 24d to ensure attraction of the armature to the upper end of the core 22 each time the coil 21 is pulsed. An insulating link 36 connects the armature with a movable contact 34. Other circuit components such as a rectifier 43, capacitor 44 and combined thermal switch and resistor are mounted in the relay base 10.