baber/WOPTO huggingface dataset:
Patent GB-489454-A (GB)
Title: Improvements in and relating to the manufacture of elements for signs or display devices
IPC: G09F13/24
Filed: 1937-06-02
Abstract: 489,454. Moving signs. BIOLITE, Inc. June 2, 1937, No. 15372. Convention date, June 2, 1936. [Class 3 (i)] A method of making elements for signs &c. which comprise one or more hollow translucent display members containing a liquid of low boiling point under sub - atmospheric pressure, a succession of bubbles rising when the liquid is warmed, consists in first shaping a tube B into the form of a letter, the letter L being shown. At the bend 30 of the letter, which is closed'at both ends 28 and 34, a hole is blown, and around this hole is fused the top of a tube A having a constricted portion 120 and a bulb 18 at its lower end. The bulb is turned upward and the constriction is preferably coated with black paint. A side tube 162 is fused to the tube A to admit of the introduction of liquid and the exhaustion of the air, the tube 162 being subsequently sealed off. Specifications 476,167; and 488,750, [Group XVII], are referred to.
Patent GB-646288-A (GB)
Title: Improvements in automatic telephone systems
IPC: H04Q3/42
Filed: 1947-06-11
Abstract: 646,288. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 11, 1947, No. 15436. Convention date, June 19, 1946. [Class 40 (iv)] In a voice frequency signalling system, a group of frequencies generated at an exchange are connected to a calling line by the release of an exchange relay in response to the use of any key in a subscriber's key-sender and are selected either singly or in combination by filter units associated with the keys, the digits represented by the selected frequencies being set in an exchange register by signal relays responsive to the voice frequency currents. The exchange relay functions as an impulse relay for subscribers' circuits using impulsing dials. Digit transmission by key sender. Completion of the subscriber's loop circuit operates relay SNR1 over a line finder (not shown). Relays SNR3, RR6 and RR5 operate in sequence, the latter relays holding over their own contacts. Dialling tone SU connected through contact 135 is induced in the calling loop. Depression of a digit key in the subscriber's key sender K1-K10 releases relay SNR1 which connects four different audio frequencies f1-f4 to the line through contact 111. Particular frequencies or frequency combinations depending on the key operated are selected by series resonant circuits derived from chokes D1, D2 and condensers C1-C6. Signal relays RR1 to RR4 at the exchange are each controlled by signal receivers S1 to S4, each receiver comprising a biassed valve amplifier and filter unit responsive to the increased potential across a resistance R due to the selection of frequencies f1 to f4 respectively. Operation of the appropriate signal relays by the subscriber's key sender connects negative potential to marking wires 1 to 0 for setting a register (not shown). The connection is held over the private wire c by a slow release relay (not shown), and by the operated signal relays. In a modification a single line break contact operated by a common actuating bar may be used in place of individual line contacts for each key as shown. Digit transmission by impulsing dial. At the first opening of the impulsing contact relay SNR1 releases. All the audio frequencies applied to the line are passed by the spark suppression condenser normally connected across the impulsing contacts. Signal relays RR1-RR4 operate and disconnect the holding circuit for relay RR6. Relay RR6 disconnects the audio frequencies from the line and closes contact 66 to render operative an impulse register (not shown) to which impulses are repeated over contact 112 and wire t1. In alternative embodiments five or ten separate frequencies may be used. A common amplifying stage may also be arranged for all frequencies. Furthermore, the circuit may be arranged so that at signal emission relays RR1 to RR4 operate when the subscriber's loop is closed, selected relays being released by connecting suppression filters in circuit. Various methods for compensating for the reactive currents due to different line capacities are described.
Patent GB-559286-A (GB)
Title: Improvements in and relating to apparatus for detaching the edges of sheet paper and like material
IPC: B26D1/02
Filed: 1942-11-04
Abstract: 559,286. Severing paper by tearing; envelopes. LARMUTH, A. Nov. 4, 1942, No. 15542. [Class 31 (i)] An apparatus for detaching the edges of a sheet of paper and like material, e.g. a wage sheet 8, comprises a base 6 for a bed 7 provided with a serrated or like edge 9 along which a strip of the desired width is torn by means of a flexible metal band 15 secured at each end to a recess in the base and arranged to pass over a roller 13 and under a roller 14 attached to a frame fitted with a handle 12 by means of which the frame is moved from left to right across the base to cut an edge, from a sheet 8 which is projected the required amount under the band 15. The roller 13 extends to a position above the edge 9 and as the roller moves to the right the edge of the strip 8 is torn successively by being drawn past the serrated edge 9. A guide 26, Fig. 6, may be attached to the frame of the rollers 13, 14 for guiding the cut edge into an envelope. In one modification three rollers may be employed for the band 15 and a strip may be severed from the sheet 8 in both directions of movement of the rollers. In a further modification Fig. 5, three sets of rollers 19, 20, 21 with flexible bands or strips 22, 23, 24, are used and the middle band 24 passes over and under the rollers 21, in the opposite direction to the bands 22. 23 the rollers being arranged at different levels and acting to cut three parallel strips at once. The edges of the bands 24, 23 serve as tearing edges. Instead of metal bands parallel strands of wire may be used, and printing-matter may be arranged on the underside of the bands, or a stencil may be cut therein, or the rollers 13, 14 may carry type for printing.
Patent GB-108960-A (GB)
Title: Improvements in Apparatus for Grinding and Polishing the Interiors of Hollow Projectiles and other Objects or Vessels.
Inventor: KAY GEORGE
IPC: B24B33/08
Filed: 1916-11-02
Abstract: 108,960. Kay, G. Nov. 2, 1916. Rotating-tool apparatus.-Consists of apparatus for grinding and polishing the interiors of hollow projectiles &c. The spindle A has pivoted to its head C a series of arms B to which are clamped or pivoted blocks D of abrasive material, or of wood faced with leather dressed with an abrasive. When inserted in the shell and rotated, the blocks fly outwards under the influence of centrifugal force. The arms are formed with hooked ends to engage the pivot pins in the head. In a modification, the device consists of two arms which are pivoted on a common pin crossing the axis of the spindle.
Patent GB-636611-A (GB)
Title: Improvements in or relating to high frequency signalling systems
IPC: H01J17/04
Filed: 1947-06-13
Abstract: 636,611. Radio receiving systems. WESTERN ELECTRIC CO., Inc. June 13, .1947, No. 15642. Convention date, June 27, 1946. [Class 40 (v)] [Also in Group XL (b)] Two amplitude-selective switches are coupled by symmetrical Y-branch connections to spaced points along a wave-guide connecting a common transmitting and receiving aerial to a transmitter, and a receiver is connected to the wave-guide through the resonant cavity of one of the switches. A transmitter T feeds an aerial AN through a rectangular wave-guide 9, 8, 7. The central section 8 of the guide forms an H-plane angle of 120 degrees with the end sections 7, 9. An RT switch 1 comprising a gas-discharge tube shunting a cavity resonator, Figs. 2, 3, 4 (not shown), is coupled to the guide at the junction of sections 8, 9, to form a symmetrical H-plane Y-connection. The switch 1 is so designed that the cavity is effectively 1 wavelength long when the gasdischarge tube is not fired, and thus produces an effective short-circuit across the. main waveguide. A receiver R is coupled to the junction of sections 7, 8 of the guide through the resonant cavity of a TR switch so arranged as to form a symmetrical H-plane Y-connection with the main guide. Tuning plugs 5, 11 are provided for the resonant cavities of the RT and TR switches respectively. The optimum distances between the centre lines of the two 120 degree bends in the guide, and between the centre line of the guide and the input irises of the RT and TR switches are given for two sizes of wave-guide used in a system, intended for operation over a 12 per cent frequency band at 3.3 cms. wavelength. Specification 621,593 is referred to.
Patent GB-182656-A (GB)
Title: A new or improved bye-pass tap or valve for gas or liquids
IPC: F16K7/06
Filed: 1921-06-07
Abstract: 182,656. Bastian, C. O. June 7, 1921. Pinch cocks.-A flexible valve comprises a plug B<x> of steatite, vulcanite, fire-clay, or metal inserted in a thick rubber tube A adapted to be compressed and distorted to leave passage-ways on either side of the plug. In the form shown, the tube is compresed between fixed and movable abutments H, E by a screw F. In a modification, the tube is pressed against the side of the vessel to which the valve is attached and the plug is perforated to provide a permanent bypass. According to the Provisional Specification a spring clamp may be used to compress the tube.
Patent GB-1029905-A (GB)
Title: Improvements in or relating to miniature lamp holders
Inventor: GREASLEY ERIC ARTHUR
IPC: B60Q3/04
Filed: 1964-04-16
Abstract: 1,029,905. Lamp holders. PRESSAC Ltd. March 18, 1965 [April 16, 1964], No. 15785/64. Heading H2E. An electric lamp holder has a hollow casing 1 within which is located a spring-loaded, hollow, headed, insulating plug 7 into the rear end of which a cable (not shown) is secured, the bared end of the cable being crimped to a contact cap which is held as a snap fit in recess 12 in the plug. The rear end of the plug extends through a hole in the rear wall la of the casing 1, and the bore of the plug is widened at 9 so that the walls of the plug are weakened at that point 76 so that when a punch 10 is forced into the rear end of the plug, this end is deformed to form an abutment to prevent forward movement of plug. The end of the casing 1a may be fitted with a connector clip 11 to receive the bared end of wire in the circuit with the lamp holder.
Patent GB-785204-A (GB)
Title: Improvements in impact fuzes for explosive projectiles including a mechanical self-destruction device
IPC: F42C9/16
Filed: 1956-05-22
Abstract: 785.204. Ammunition fuzes. BREVETS AERO-MECANIQUES SOC. ANON. May 22, 1956 [May 24, 1955], No. 15811/56. Class 9(1) An impact fuze intended to be fitted in the nose of small calibre anti-aircraft projectiles has a body 1 closed by a disc 19 and a base-plug 16 housing a detonator 17 aligned with a firing-pin 13. The pin 13 is held away from the detonator by masses 8 housed in a transverse passage 7 in a sleeve 3 as in Specification 725,821. The centrifugal masses of the earlier Specification, immobilizing an inner sleeve 9 to lock pin 13, are replaced by balls 11. The spring 12 surrounding the pin 13 bears against a shoulder 9a of the sleeve 9 and against the inner surface of a striker weight 18. As the projectile leaves the gun, centrifugal force urges the balls 11 outwards, so preventing rearward movement of sleeve 9, while a spring ring 4 expands and releases sleeve 3. The masses 8 move radially outwards, pushing forward the sleeves 3, 9 and firing pin 13. While the path of the pin is .free, when the masses reach their outermost positions in which they lock the sleeve 3 in its forward position, the fuze then being armed for actuation on impact. After a given time, if impact does not occur, the centrifugal force is insufficient to balance the thrust on the balls 11 due to spring 12 and the balls re-enter their housings in the sleeve 9. Spring 12 then drives the sleeve 9 forward together with the pin 13 to cause self-destruction of the fuze. When the disc 19 is ruptured by the impact, the weight 18 forces the balls 11 to retract and release the spring 9. Specifications 605,683 and 624,811 also are :referred to.
Patent GB-419832-A (GB)
Title: Improvements in, or relating to, the heat-treatment of metals
IPC: C21D1/76
Filed: 1933-06-01
Abstract: 419,832. Heat-treating metals; gasproducing furnaces. ELECTRIC FURNACE CO., Salem, Ohio, U.S.A. June 1, 1933, No. 15816. Convention date, June 2, 1932. [Class 51 (ii).] A gas, for use as a heat treatment atmosphere in metal-heating furnaces, having a substantial nitrogen content and of an oxidizing, reducing, carbonizing or decarbonizing character, is produced by mixing hydrocarbon gas or vapour with air in proportions selected according to the required character of the gas, and reacting the mixture with the assistance of applied heat. As shown, gas and air are supplied under control of valves 4, 6 to a tube 8 containing a catalyst 10 and heated externally by resisters 9 controlled from a recording pyrometer 13. From the tube the gas passes to the furnace through a cooler 19 with a moisture trap 20, and a drier 21. When using a natural gas containing 84 per cent methane, 14 per cent ethane, and 2 per cent nitrogen the reaction chamber is maintained at a temperature of 1850‹ F., and the gas is mixed with air in proportions up to ten parts by volume of air to one part of gas. Various air to gas ratios are given for producing atmospheres suitable for particular purposes, e.g. in converting lowcarbon steel, a 4 to 1 ratio would be used, producing a gas containing 25 per cent hydrogen, 1 per cent methene, 15 per cent carbon monoxide, 3 per cent carbon dioxide, and the remainder nitrogen. Higher air to gas ratios would be used for decarbonizing steel, or annealing copper, and lower for steels with a higher carbon content, or for carburizing. If butane is used, three times the quantity of air may be employed as compared with natural gas. In general, heat treatment gases may be produced containing 7-37 per cent hydrogen, up to 10 per cent methane, 35-80 per cent nitrogen, 5-22 per cent carbon monoxide and up to 10 per cent carbon dioxide. The Specification as open to inspection under Sect. 91 describes a heat treatment furnace having aligned heating and cooling chambers, end elevator charging and discharging shafts, and a pusher at the charging end for transferring the goods from the elevator to a driven roller-way extending through the heating and cooling chambers. The cooling-chamber is separated from the heating chamber by a door, and has inlet and outlet passages for the atmosphere gas. This subject-matter does not appear in the Specification as accepted.
Patent GB-1518521-A (GB)
Title: Sheaths for temperature sensing probes
IPC: G01K1/08
Filed: 1975-04-17
Abstract: 1518521 Thermometer covers J R NAUMANN 17 April 1975 15874/75  Heading G1D A one piece, tapered disposable sheath for a temperature sensing probe has a closed end of thin material, e.g. plastics, whilst the thickness of material of the remainder of the wall is greater to provide a substantially rigid body. The sheath may be stepped 11c, 11d as shown, and the thickness of end depression 12 is preferably not more than 0À002 inch and that of wall adjacent depression 12 not greater than 0À012 inch. The sheath may be manufactured by injecting plastics through an orifice having a diameter from 0À007 inch to 0À21 inch between a tapered mandrel and a cavity. Withdrawal of the mandrel while the plastics is moldable draws down the wall thickness adjacent the sheath tip to fully close the smaller end.
Patent GB-424863-A (GB)
Title: Improvements in or relating to cursors for slide rules
IPC: G06G1/06
Filed: 1934-05-28
Abstract: 424,863. Slide - - rules. FABER CASTELL-BLEISTIFT-FABRIK AKT.-GES., A. W., Stein, near Nuremberg, Germany. May 28, 1934, No. 15897. Convention date, May 26, 1933. [Class 106 (i)] A cursor for a slide-rule has the longitudinal guide bars and the transverse stiffening walls formed integrally with one another or rigidly secured to one another at the corners, the dimension of the bars and walls in a direction perpendicular to the face of the cursor being greater than that in the direction of movement. The cursor may be pressed into shape from a blank as shown in Fig. 5, the corners of the sides 16, 17, 18, 19 being formed integrally or joined by welding. The sides are then formed into the transverse walls 20, 21, Fig. 6, and the guide bars 22, 23.
Patent GB-1049150-A (GB)
Title: Current control circuit arrangements
Inventor: EASTAP ROBERT HENRY
IPC: H02M1/06
Filed: 1964-04-17
Abstract: 1,049,150. Controlled rectifier switching circuits. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. April 9, 1965 [April 17, 1964], No. 15946/64. Heading H3T. [Also in Division H2] The charging voltage for the commutating capacitor of a thyristor or like switching device is obtained from a supply of higher voltage than the supply being switched and is interrupted during the switch-off period to allow the switch effecting the commutation to become non-conducting. In Fig. 4 the load L is a motor connected across a " free wheeling diode " 15 and is in series with a thyristor 5 for connecting the supply to the motor. The thyristor may be switched-off by firing a second thyristor 6 to connect a reversely charged commutating capacitor 1 across it. This capacitor is charged from a relatively high voltage supply provided by a free-running or driven inverter 10, 11 which, when thyristor 6 is fired, is switched-off, as by interrupting the feedback or drive, to allow thyristor 6 to become non- conductive after the switch-off. In Fig. 2 (not shown), the inverter uses thyristors or one thyristor and one rectifier and the charging circuit may alternatively be switched-off by a series transistor.
Patent GB-291457-A (GB)
Title: Improvements in or relating to buoys and similar floating bodies fitted with acoustical signalling means
IPC: B63B22/16
Filed: 1928-06-01
Abstract: 291,457. Pintsch Akt.-Ges., J. June 2, 1927, [Convention date]. Buoy signals. - A soundproducing device 5 for subaqueous signalling is fitted to a buoy 1 so as to be readily detachable. Pipes 7, 8 for the supply and discharge of compressed air for working the sound-emitter 5 pass from a platform 2 through a pipe 3 having a conical seat 6 for the device 5, which is held firmly thereon by a spindle 10 pivoted to a lever 12 and operated by a hand-wheel 11. Openings 9 are provided in the tail pipe 4 of the buoy. When an electrically - operated sound-emitter is used, the leads pass down the pipe 3, through which the device is easily removable by anyone on the platform. In a modification the pipe 3 runs down the central axis of the buoy, and a discharge pipe for the device 5 has a screw-threaded member with a nut for firmly holding the device 5 in place.
Patent GB-914031-A (GB)
Title: Improvements in or relating to guards for tractor power take-off shafts
Inventor: NOBLETT FRANK
IPC: B60K25/00
Filed: 1958-05-20
Abstract: 914,031. Machinery guards. MASSEYFERGUSON (UNITED KINGDOM) Ltd. May 29, 1959 [May 20, 1958], No. 16097/58. Class 80 (4). [Also in Group XXV] Relates to tractor power take-off guards of the type comprising a hood 16 attachable to a tractor and a hood on an implement, the hoods extending over universal joints of the shaft between the tractor and implement and a telescopic guard tube or the like 25, 25A covering the shaft and attached to the hoods for universal movement with the shaft, the guard tube being detachable from the tractor hood. According to the invention, a fastening device is provided comprising a support 27 on which the guard tube or the like is adapted to be supported for pivotal movement about a horizontal axis, a pin 28 projecting upwardly from the support 27 and rotatable in a bush 30 having a lower flanged portion 31, a central narrow portion 32 for entry into a slot 20 provided on the tractor hood and a threaded upper part 33 upon which a lock-nut 34 is screwed, the arrangement being such that in use, the flanged part of the bush co-operates with the underside of the tractor hood and the locknut co-operates with the upper side to lock the nut in position. As shown, the tractor hood is provided with a lower recessed part formed by a slotted plate 22 with which the flanged part of the bush is engageable, the flange being of greater depth than the recessed part so that the pin with the support are free to rotate when the bush is locked in position by the nut.
Patent GB-710608-A (GB)
Title: Improvements in or relating to runway lights
IPC: B64F1/20
Filed: 1952-06-27
Abstract: 710,608. Runway lighting. KNOTTNERUS, L. F. A. June 27, 1952 [March 13, 1952], No. 16165/52. Class 75 (4) An aircraft runway light comprises a concrete or like paving block 1 the upper surface of which has one or more longitudinal slots or recesses 2 housing at least one light source 4 so arranged wholly or partly below the runway surface in which the block is built as to radiate light in the longitudinal direction of the runway. As shown the upper surface of the block slopes upwardly towards its centre 3 and the bases of the recesses 2 slope downwardly towards the block centre, and incandescent filament lamps 4 are housed in the deep ends of the recesses in front of a parabolic reflector 5, or where two or more lamps 4 are used, mirrors 10, 11. A window 7 is provided in front of each lamp and drainage ducts 8, 9 are provided at the deep ends of the recesses. The lamps may be low voltage type and the centre part 3 of the block may house a transformer 6, and a lamp 12 with a window 13 above. The width of the recesses 2 must be less than the width of an aircraft landing wheel or must be partitioned longitudinally by concrete, or steel, girders 14 into sections of such sufficiently narrow width, the upper face of the partitions being flush with the upper surface of the block.
Patent GB-888494-A (GB)
Title: Improvements in or relating to operation tables
IPC: A61G13/00
Filed: 1959-05-12
Abstract: 888,494. Surgical traction apparatus. FULLER, J. E., and FULLER & CO. Ltd., WILLIAM, G. May 10, 1960 [May 12, 1959], No. 16187/59. Class 81 (2). An attachment device for holding the foot, in applying traction, comprises a sole plate and a member which fits around the top of the heel. The plate 20 is set obliquely on its mounting and carries a strap 24 which is passed around behind the heel, so that the tension is transmitted to the heel. A second strap 26 keeps the foot in engagement with the plate 20 and a third strap 25 may be used to assist in positioning it. In the form described, the plate 20 is rotatable about the axis of a threaded rod 19 which, for the purpose of applying traction, is adjustable through a sleeve 17 by a nut 23. The sleeve is also adjustable for height by a telescopic arrangement of a vertical rod 16 in a tube 14 and this again is adjustable along a horizontal rod 9 by a clamping sleeve 11.
Patent GB-146100-A (GB)
Title: A device for securing indicating or controlling meters to the dashboards of vehicles, carriages or the like
Inventor: BARBAROU JEAN-BAPTISTE-MARIUS
IPC: B60Q1/54
Filed: 1920-06-15
Abstract: 146,100. Barbarou, J. B. M. July 2, 1919, [Convention date]. Dashboards.-A recording or measuring instrumeut is inserted from the front of the dashboard so that it may lie flush therewith, and is held in a split-collar clamping-device arranged at the back. The lower part of the collar b is secured to the dashboard a by means of a segmental flange and screws c. The upper part of the collar is split and formed with projections e with wedgeshaped faces adapted to be squeezed together to secure the meter by means of a V-shaped clamp g and screw h, which is rotated from the front.